Artificial hair and wig, using such hair

FIELD: personal use articles.

SUBSTANCE: artificial hair has structure comprising core part and coating shell part. Core part is made of polyamide, and shell part is made of polyamide, having lower flexural stiffness compared to core part. The second object is provided, i.e. wig, which uses specified artificial hair.

EFFECT: invention provides for production of hair, which are similar to natural hair in its properties and appearance.

16 cl, 24 dwg

 

The scope of the invention

[0001] This invention relates to artificial hair having the physical properties of natural hair and creates a feeling of natural hair, and wig, which used such hair.

The level of technology

[0002] have long made use wigs made from natural hair, but lately restricting supply of natural hair and other problems led to the increased use of synthetic fibers as hair for wigs.

In this case, the main criterion of selection of synthetic fibers, intended for use, is its proximity to natural hair in terms of physical properties and created a sensation.

[0003] as a material for artificial hair in many cases the use of synthetic fiber of acrylic, a complex of polyester and polyamide, but acrylic fibers have a low melting point and poor thermal stability, which is why they have disadvantages such as poor ability to save the form after you perform permanent waving, which leads to deformation, for example, the shape of the curls at wetting it with warm water.

Fiber-based complex polyester superior to the other in strength and heat resistance, but have a high bending stiffness in addition to Razvitie low absorbency compared to natural hair which leads to the appearance, sensation, or physical properties, different from natural hair, for example, in an environment with high humidity, and they create significant discomfort when used for wigs.

[0004] Here, under the bending stiffness refers to the property related to tactile sensations and the texture of the fibers, which is widely used in the fiber and textile industry and can be represented numerically by the method of measurement suggested by Kawabata (KAWABATA) (see reference 1, non-patent literature). Also known device, which can be measured bending stiffness, using a single strand of fiber or hair (see reference 2, non-patent literature). Later in this document, the bending stiffness may be referred to as Flexural rigidity and stiffness to bending and is defined as the inverse of the curvature obtained when exposed to a bending moment on artificial hair.

The greater the stiffness in bending of artificial hair, so it is less flexible and the greater resistance to bending he has, i.e. it is more solid. On the other hand, the smaller the stiffness in bending has artificial hair, so it is more flexible and soft.

[0005] As the polyamide fiber may have the appearance and physical properties similar natures is determined as being the hair in many aspects, their long used in practice as a hair for wigs, in particular, the invention method of manufacturing made by this applicant, which can eliminate unnatural Shine through surface treatment, can produce a great wigs (see Patent 1).

[0006] Polyamide fibers include linear saturated aliphatic polyamides, in which the main chain contains only methylene links related amide groups, such as nylon 6 and nylon 66, and polyaromatics polyamides, in the main chain of which is optionally included phenylenebis groups, such as nylon 6T production Taebo limited (TOYOBO, LTD.) and MXD6 production Mitsubishi ESG chemical company Incorporated (MITSUBISHI GAS CHEMICAL COMPANY, INC).

Patent 1 describes the artificial hair fibers of nylon 6 with a machined surface, however, the bending stiffness of the fibers of nylon 6 inferior stiffness bending natural hair, so, given that the bending stiffness characterizes the tactility and texture, difficult to manufacture artificial hair with properties similar to the properties of natural hair.

[0007] on the other hand, artificial hair, which used nylon 6T, have a bending stiffness greater than that of natural hair, and therefore, it is difficult to make hair, with properties and, similar to natural hair. Therefore, it would be logical to offer to produce a fiber with the desired bending stiffness close to the rigidity of the bending natural hair, by molding from a melt of nylon 6 and nylon 6T, however, their melting points are too different, and if you set a higher melting point corresponding to the nylon 6T, then there is a serious technological problem lies in the fact that nylon 6 having a low melting point and a relatively low resistance, is damaged by thermal oxidation during melting. Therefore, nylon 6T still not used in practice as a material for artificial hair.

[0008] it is Known execution of a fiber structure composed of the core and the shell, as a way to use the properties of the polymers of both species. The specified fiber contains a single thread core fiber and a surrounding shell fiber and may be a universal fiber or material for synthetic hair for wigs, using relevant properties of the polymers of two different species. For example, patent 2 describes the fiber to the structure of the sheath/core, made of vinylidenechloride, polypropylene, etc. and patent 3 describes polyamide in the window, but modified by adding into the fibers of the gel of protein with bridge connections.

[0009] in Addition, to eliminate the unnatural Shine of artificial hair, caused by the transparency of conventional synthetic fibers, various attempts have been made to give them the appearance and properties similar to the appearance and properties of natural hair, by performing a rough surface in order to give the Mat. The above-mentioned patent 1 describes a method of making a rough surface by growing crystals, and patent 4 - through effects on the surface of the fibre chemicals. In addition, there is also known a method of processing an artificial hair spray with a fine powder, such as sand, ice or solid carbon dioxide [0010].

Patent 1: Japan patent S 64-6114 And (1989).

Patent 2: Japan patent 2002-129432 A (2002).

Patent 3: Japan patent 2005-9049 A (2005).

Patent 4: Japan patent 2002-161423 A (2002).

Reference 1, non-patent literature: Sen ikikai Gakkaishi (journal of the scientific society of Textile technology), Sueo Kawabata, 26, 10, str-728, 1973.

Link 2 in non-patent literature: Cytotec limited (CATATAN LTD.), manual of the measuring instrument KES-SH, is used to bend the hair.

Disclosure of the invention

The tasks that need resh is th

[0011] the Artificial hair intended for wigs, you should call sensations (appearance, tactile and texture), close to the sensations caused by natural hair, and have similar physical properties, and, in addition, ideally, their physical properties must exceed the physical properties of natural hair.

As mentioned above, various synthetic fiber materials have their own advantages and disadvantages, respectively, and among them a special polyamide fibers, especially nylon 6 and nylon 66, used in practice because of their excellent properties, however, their bending stiffness less than the stiffness of the bending natural hair, which is a disadvantage.

[0012] the present invention, in light of the above problems, is the creation of artificial hair, causing sensations (appearance, tactile and texture), close to the sensations caused by natural hair, and have similar physical properties, as well as the creation of the wig where the hair used.

Means to solve this task

[0013] the inventors have established the present invention as a result of hard study through the use of properties of polyamide fibers to create a core part made of nylon with tough the TEW bending and shell parts of polyamide fibers with a smaller bending stiffness and by obtaining information about the structure of the sheath/core, i.e. a structure consisting of a core fiber and a surrounding shell fiber, can use the properties of both polymers to create optimal artificial hair, causing sensations (appearance, tactile and texture), close to the sensations caused by natural hair, and have physical properties similar to properties of natural hair.

[0014] To solve the above problem, we offer artificial hair differs in that it has the structure of core/shell containing the core portion covering the shell portion, and the core is made of polyamide, and the shell is made of polyamide having a lower bending stiffness than the Central part.

In this structure, the surface of the artificial hair is preferably treated to eliminate Shine through the creation of small concavity and convexity. Small concavity and convexity can be done through the creation of crystals and/or by blasting. The core part is preferably made of polyaromatics polyamide, and the shell part is made of a linear saturated aliphatic polyamide. Polyaromatics polyamide is preferably a copolymer with alternating links of g is of cimetiedine and terephthalic acid or a copolymer with alternating links of methoxylamine and adipic acid, and linear saturated aliphatic polyamide is a polymer obtained by polymerization of caprolactam with opening cycle, and/or copolymer with alternating links of diamine and adipic acid. The weight ratio of sheath/core is preferably 10/90-35/65. Artificial hair may contain a pigment and/or dye.

[0015] the Proposed artificial hair has a double structure of a core part and a surrounding shell part, and because they are made of polyamides with different bending stiffness can be created artificial hair, bending stiffness which is very close to the rigidity of the bending natural hair in accordance with changes in humidity. Therefore, as specified artificial hair has a bending stiffness that is close to the stiffness bending natural hair, you can create artificial hair, causing these sensations, due to the appearance, tactile and texture that is very similar to the sensations caused by natural hair, making them bending stiffness changes, in particular, under the influence of temperature and humidity is almost similar to human hair.

[0016] Proposed the wig differs in that it includes a base and attached or bound to the artificial hair to the verge have the structure of the core/sheath, made of medullary portion covering the shell portion and the core portion is made of a polyamide, and the shell portion is made of a polyamide having a lower bending stiffness than the core part.

Using the proposed artificial hair wig the above patterns, you can create a wig, the bending stiffness of the hair which reacts to changes in humidity almost the same as natural hair.

Therefore, as the artificial hair good standing and bending stiffness similar stiffness bending natural hair, you can get a very good wig that has a natural appearance, tactile and texture. Therefore, due to the artificial hair having bending stiffness, which changes depending on temperature and humidity, and has properties more similar to human hair than traditional artificial hair, simulates the growth of its own human hair from the scalp and not disclosed the fact of wearing a wig.

The result of inventions

[0017] In accordance with the present invention it is possible to create artificial hair, the structure of which is composed of a shell and core and which cause sensations caused the appearance, tactile and texture close to the sensations caused by genuine cowhide leather-makes the mi hair they also have different physical properties, in particular the bending stiffness and its changes depending on humidity, similar properties to natural hair. In addition, the wig, which used artificial hair having the structure of sheath/core, can provide a natural feeling to the user and the people around them to a greater extent than traditional wig, which used artificial hair made of a synthetic fiber material.

More specifically, due to the artificial hair with a structure composed of a shell and core, with the shell part is made of polyamide having a bending stiffness that is less than the core portion, the bending stiffness varies depending on temperature and humidity, resulting artificial hair behave like a human and artificial hair, even if Curling, stretching the curl when wet in the water and restore it when drying naturally can occur both in natural hair.

Therefore, when wearing proposed wig rain or high humidity conditions, artificial hair become softer, hang down, and the amount of hair lost due to changes in the characteristics of stiffness in bending is pityana artificial hair of moisture, i.e. by reducing the bending stiffness with increasing humidity, and when absorbed water comes naturally or due to drying, artificial hair gradually rise and return to its original state. As a result, because you can get a wig, behaving like natural hair growing from the scalp, it is difficult to recognize and it looks great.

Brief description of drawings

[0018] Figure 1 schematically depicts the structure of an artificial hair in accordance with the first variant of the invention, in which (A) is a view in the perspective view, (B) is a cross-section of artificial hair.

Figure 2 is a longitudinal section schematically depicting the structure of the proposed artificial hair in accordance with the modified example.

Figure 3 schematically depicts the molding machine used for the production of artificial hair.

Figure 4 schematically depicts the slit discharge part of the molding machine.

Figure 5 schematically depicts a perspective view of the structure of the wig, which used artificial hair in accordance with the second embodiment of the present invention.

6 represents an enlarged view schematically depicting the behavior of the wig, illustrated by figure 5, in accordance with the betrayal of the receiving moisture, where (A) depicts the condition when the normal level of humidity, and (C) at higher humidity levels.

7 depicts a graph of the relationship between elongation and bending stiffness of the artificial hair made according to Example 3.

Fig represents the image of the cross-section of artificial hair made according to Example 2, the obtained electron microscope.

Fig.9 represents the image of the surface of the artificial hair made according to Example 2, the obtained electron microscope.

Figure 10 is an image of the cross-section of artificial hair made according to Example 3, the obtained electron microscope.

11 is a received electronic microscope image of the cross-section of artificial hair having the structure of the shell/core and made according to Comparative example 3.

Fig depicts the diagram of the bending stiffness of the artificial hair made according to Examples 1-5 and Comparative examples 1 and 2, from moisture.

Fig depicts the diagram of the bending stiffness of the artificial hair made according to Examples 6 to 10 and Comparative examples 1, 4 and 5, from moisture.

Fig depicts pictures of the initial status is I curls, on which (A) is an artificial hair shown in the Example in accordance with the present invention, (B) - natural hair, (S) - traditional artificial hair is made on the basis of a complex of the polyester.

Fig depicts pictures of the condition of the water-soaked curls, in which (A) is an artificial hair shown in the Example in accordance with the present invention, (B) - natural hair, (S) - traditional artificial hair is made on the basis of a complex of the polyester.

Fig depicts pictures of dried state after wetting with water curls, in which (A) is an artificial hair shown in the Example in accordance with the present invention, (B) - natural hair, (S) - traditional artificial hair is made on the basis of a complex of the polyester.

[0019]

1: Artificial hair

1A: Shell

1B: the Core part

1C: Small concavity and convexity

10: Artificial hair having on the surface of the small

concavity and convexity

21: the First cylinder

22: Second cylinder

21A, 22A: polymer Melt

21V, 22V: gear pump

23: Unloading

23A, the Outer annular outlet

23C: Internal circular outlet

23C: Outlet

24: the Cooling bath

25: the First exhaust roller

26: the First camera dry lubricants

27: the Second exhaust roller

28: Second camera dry lubricants

29: the Third exhaust roller

30: Third camera dry lubricants

31: Sizing

32: Fourth exhaust roller

33: Mechanism blasting

34: Winding mechanism

40: Wig, which used artificial hair

41: Base wig

The best ways of carrying out the invention

[0020] Further described in detail embodiments of the present invention with reference to the accompanying drawings.

First description of artificial hair in accordance with the first variant of the present invention.

Figure 1 schematically depicts the structure of an artificial hair in accordance with the first variant of the invention, in which (A) is a view in the perspective view, (B) is a cross section of artificial hair. As shown in the drawing, the artificial hair 1 has a structure composed of a shell and core, in which the surface is a shell portion 1A, and the core portion 1B located inside the part 1A. In this case provides an example of the structure of the sheath/core with almost concentric elements, but the proposed structure also includes the cases in which and the part 1B and part 1A have different forms, different from the concentric circles, for example, to the Yes, the core is eccentric with respect to the shell, and they are not perfectly concentric circles. The shape of the shell and core may also be such that the core is almost a perfect circle, and the shell has a different thickness. In addition, the cross section of the hair shaft 1 may have the shape of a circle, ellipse, or cocoon.

[0021] as the polyamide material part 1B can be used polyaromatics polyamides with high strength and bending stiffness. As mentioned aromatic polyamides may be mentioned such a polymer as a copolymer with alternating links of diamine and terephthalic acid, such as nylon 6T, represented by chemical formula 1, or a polymer with alternating links of adipic acid and methoxylamine, such as nylon MXD6, represented by chemical formula 2.

Chemical formula 1

Chemical formula 2

[0022] as the polyamide material part 1A can be used polyamides with a lower bending stiffness than the material of part 1 In, for example, you might use a linear saturated aliphatic polyamide. As specified linear saturated aliphatic polyamide can be mentioned a polymer obtained by polymerization of caprolactam with opening cycle, for example nylon 6, before the purposes of the chemical formula 3, or polymer which is a copolymer with alternating links of diamine and adipic acid, for example nylon 66, represented by chemical formula 4.

Chemical formula 3

Chemical formula 4

[0023] If the surface of the casing 1A is smooth, we offer hair 1 glitters. To overcome this unnatural Shine of its surface can be treated by the so-called procedure of eliminating Shine.

[0024] figure 2 shows schematically a longitudinal section illustrating an exemplary structure of the proposed artificial hair treated in this way. As can be seen from the drawing, the surface of the part 1A of the artificial hair 10 is made small concavity and convexity 1C. Such concavity and convexity 1C diffuse light reflected from hair 10, which surface is no longer shiny, which leads to the so-called anti-glare effect.

Here concavity and convexity 1C can be obtained by blasting fine powder, such as sand, ice, solid carbon dioxide and other during molding of the hair 1 or fiber processing after molding. When carrying out such processing during formation of the hair 1 on its surface can be formed crystals. It is also possible to combine the processes of formirovaniyabrenda and blasting a fine powder, such as sand, ice, solid carbon dioxide and other

Concavity and convexity 1C, obtained as a result of this treatment, its size can be greater than the wavelength of visible light, allowing the light reflected absently.

[0025] the Proposed hair 1, 10 can be colored depending on customer preferences. Specified staining can be done by entering the pigment and/or dye during mixing of the polymer as a material for forming the hair or by artificial coloring hair after molding.

[0026] Due to the fact that the proposed hair 1, 10 have a structure composed of a shell and core part 1B, made of polyamide having a high bending stiffness, and with part 1A, made of polyamide, having a bending stiffness that is less than material part 1B, it is possible to get artificial hair, the rigidity of which bending is changed depending on temperature and humidity and which have properties more similar to those of the human hair than traditional artificial hair.

In addition, due to the presence of the concavity and convexity 1C on the surface of the part 1A of the hair received 10 anti-glare effect, and the properties of the hair and creates them feel closer to natural hair.

[0027] the following describes the JV is a method for manufacturing artificial hair.

Figure 3 schematically depicts a molding machine used for the production of artificial hair, and figure 4 shows schematically the slit discharge part of the molding machine. As shown in figure 3, the molding machine 20 includes a first cylinder 21 with polyamide for part 1A, the second cylinder 22 with polyamide for part 1B; the discharge portion 23 to produce melts 21A, 22A supplied from cylinders 21, 22; a cooling bath 24 for curing the molten filaments released from the exhaust holes 23C part 23, and forming on the surface of the concavity and convexity; parts that serve for a three-stage heat drawing in each stage are respectively the exhaust rollers 25, 27, 29 and cameras 26, 28, 30 dry extract; the mechanism 33 blasting for the subsequent formation of the concavity and convexity 1C on the surface of the yarn; and winding mechanism 34 for winding synthetic hair, processed mechanism 33 to remove Shine to the desired state.

[0028] the Cylinders 21, 22 are equipped with heating device to melt the pellets of polyamide, screws for submission to the kneading device and to the portion 23 and the gear pump 21B, 22B for supplying molten 21A, 22A to part 23.

[0029] the Fiber of the holes 23C part 23 passes, as shown in the drawing, through a cooling bath, fur the isms extraction and dry extraction then, through the sizing 31 to prevent the accumulation of electrostatic charge through the exhaust roller 32 to reduce the voltage applied to artificial hair, for dimensional stability, through the mechanism 33 for surface treatment mechanism 34.

[0030] As can be seen from figure 4, the part 23 is equipped with a concentric circular dual exhaust hole of the inner circular hole 23C which faces the melt 22A polyaromatics polyamide, and from the outer ring of holes 23A surrounding the inner hole 23C, leaves, respectively, the melt 21A linear saturated aliphatic polyamide.

[0031] the following describes a method of manufacturing artificial hair using the machine 20.

Using the machine 20, it is possible to make the hair 1, 10 by melting each of the polyamide at the corresponding temperature in the cylinders 21, 22, feeding the melt to part 23 and releasing the melt 22A of the circular holes 23C outlet, and the melt 21A of the circular hole 23A for the manufacture of filament structure, consisting of a shell and the core.

[0032] In this case, the ratio of the volume of the melt 21A supplied for a certain period of time the pump 21B, to the volume of the melt 22A supplied by a pump 22B, in the present invention is defined as the volumetric ratio of the rocki and the core. As described below, to give the crown 10 of the bending stiffness approximately equal to the bending stiffness of natural hair, the weight ratio of shell to core should preferably be in the range of 10/90-35/65. As for the process conditions to obtain the weight ratio of the shell and core, the volumetric ratio of the sheath to the core should preferably be in the range of 1/2-1/7, which is preferred for properties such as bending stiffness of the hair 1, 10, as described below.

If the volumetric ratio of the sheath/core exceeds 1/2, i.e. the share of part 1A high, the part 1B hair 1, 10 contributes little to increase the stiffness in bending. On the other hand, if the volumetric ratio of the sheath/core below 1/7, i.e. the share of part 1B is great, it is not preferred since it gives artificial hair too much bending stiffness and they are not like natural.

[0033] After forming the hair 1, 10 can be elongated in 5-6 times. Whereas traditional artificial hair made of nylon 6 extend only 2 times.

To offer hair 1, 10 elongation after molding, the thread diameter and bending stiffness can be set in accordance with the required design. In this case, the shell and the core of the hair 1, 10 can have almost conc the Cesky circular form with appropriate control conditions forming.

[0034] In forming the proposed hair 10 it is possible to form the crystals to obtain the concavity and convexity 1C on the surface of the linear saturated aliphatic polyamide used as part 1A, skip the thread extending from the exhaust holes 23C, through water with a temperature of 80°C. or higher in the tub 24, thus allowing the thread acquires the appearance similar to natural hair, while anti-glare treatment to eliminate unnatural lustre.

[0035] To form concavity and convexity 1C on the surface of the molded threads it can handle air jet with such particles as sand, ice and solid carbon dioxide, or chemical effect on the surface of the filament, or combine these methods in addition to the aforementioned formation and growth of crystals.

[0036] To give the corresponding color and appearance of the hair 1, 10 during the operation of molding can be entered pigment and/or dye or hair 1, 10 can be painted after molding.

[0037] As described above, because the proposed hair 1, 10 have a structure composed of a shell and core, with polyamides having different bending stiffness, can be manufactured with good reproducibility hair 1, 10 with bending stiffness, the higher the, than traditional artificial hair made of a linear saturated aliphatic polyamide. In addition, forming the concavity and convexity 1C on the surface of the hair 1, you can give your hair a natural Shine, similar to the Shine of natural hair, and thus to give them the appearance of natural hair.

[0038] the following is a description of the wig, which used artificial hair in accordance with the second embodiment of the present invention.

Figure 5 schematically depicts a perspective view of the structure of the wig, which used artificial hair in accordance with the second embodiment of the invention. Offer wig 40, which used the hair 1, 10 made by tying hair 1 or 10 to the base 41 of the wig. The base 41 may be a grid or from artificial leather.

In the case of the basics 41 shown in the drawing, the hair attach or bind to cells in the grid framework. The base 41 may be a combination of mesh and synthetic leather, and there are no special restrictions, as long as it is suitable for the construction of the wig or purpose.

[0039] the Diameter of the hair 1, 10 may be of the order of 0.05-0.1 mm in Addition, you can use hair 10, reflecting the relative whose brightness is suppressed and which glisten like natural hair. The color of the hair is 1, 10 can be properly selected in accordance with the wishes of the client, dark, brown and bright. Artificial hair look more natural if the color matches your own hair of the user around the area of baldness. If the wig or attached hair used as a fashion accessory, they can be made acenapthene with giving them a color different from the color of your own hair man, or a different color from roots to ends, and can be created in the transition, for example, from dark to light shade or gradual color change.

[0040] Fig.6 is an enlarged view schematically depicting the behavior of the wig, illustrated by figure 5, in accordance with changes in humidity, which (A) shows the state when the normal level of humidity, and (C) is at a high level of humidity. The drawing shows the case of performing artificial hair straight.

As shown in Fig.6(A), the hair 1, 10, attached or tied to the wig 10, have a bending stiffness that is close to the hardness of natural hair. Therefore, under normal conditions at a relative humidity between 40-60% hair 1, 10 well worth and add volume to the wig 40.

On the other hand, when the proposed wig 40 becomes wet in the rain or in conditions of high humidity, artificial in the wasps become soft and as shown in Fig.6(B), Vicente and lose volume due to a change in the bending stiffness, which depends on the absorbed attached or tied to the wig synthetic hair moisture, i.e. the bending stiffness decreases with increasing humidity.

Then, when the absorbed water is released naturally or as a result of drying, the hair 1, 10 gradually rises and returns to its original state.

In addition, if the hair 1, 10 made wavy, curl stretches, like natural hair, and, as in the case with straight hair returns to its original shape after release of the absorbed water naturally or as a result of drying.

[0041] In the proposed wig 40 due to the fact that the hair 1, 10 have a structure composed of a shell and core, part 1B, made of polyamide having a high bending stiffness, and with part 1A, made of polyamide, having a bending stiffness that is less than material part 1B, and the hair attached or anchored to the base of the wig, the bending stiffness varies depending on temperature and humidity and you can get a wig with good appearance, possessing properties which are closer to the properties of human hair. Moreover, if the surface of the artificial hair made of concave and convex is ti 1C, it gives the hair a more natural appearance due to the lack of Shine.

In addition, if the proposed wig 40 becomes wet in the rain or sweat man, as the hair 1, 10 is made of polyamide with good water absorption, they absorb water, hang down due to the increase of their own weight and behave like natural hair. On the other hand, in the case of use in traditional wig synthetic hair, for example, on the basis of complex polyester, because of their bending stiffness higher than that of natural hair, absorbing water of its own human hair hang down, while artificial hair on the basis of complex polyester maintain a standing position while wearing the wig, and mixed their own human hair and artificial hair wig be messy, so there is a division of its own human hair and polyester hair wig, resulting hairstyle looks unnatural. However, in accordance with the present invention, since the hair of the wig when it is soaked with water hanging down almost as well as your own human hair, split hair does not occur, and thus can be stored condition in which your own human hair and artificial hair well mixed.

Examples

Example 1

[0042] D is a more detailed description of the examples of the present invention.

In this example, were made of artificial hair 10 by means of the machine 20, is shown in figure 3. As polyamide for part 1B was used nylon 6T production company Taebo limited, and as polyamide for part 1A was used nylon 6 produced by the same company. Bath 24 used hot water with a temperature of 80°C. the Hair 10 were made when the volumetric ratio of the sheath to the core 1/7 and the outlet temperature of the outlet 310°C. For hair 10 in Example 1, the weight ratio of sheath/core was 12/88.

As the coloring matter were used polymer granules obtained by mixing the polyamide used either for part 1A or part 1B, and dye in a pre-specified ratio, by heating, melting and cooling after mixing. These polymer granules used as the coloring matter, were defined as uterine mixture. As masterbatches used in the Example were used polymer pellets containing 3 wt.%, black inorganic dye, polymer pellets containing 3 wt.%, yellow inorganic dye and polymer pellets containing 4 wt.%, red inorganic dye.

[0043] More specifically, the molten polymer 21A of the total mass of 100g, containing 84 g of pellets of nylon 6 is used as the material for part 1A, 5 g black, 10 g of yellow and 1 g red masterbatches, filed in the cylinder 21, and the molten polymer 22A of the total mass of 100 g, containing 84 g of pellets of nylon 6T, used as material for part 1B, 5 g black, 10 g of yellow and 1 g red masterbatches, filed in the cylinder 22.

Nylon 6T filed pump 22B to the hole 23C part 23, and nylon 6, respectively filed by the pump 21B to the hole 23A, and surround the extrusion ratio was 1/7, as the ratio of the shell to the core, by adjusting the rotation of the pump 21B and 22B.

The molding machine was formed 15 threads, fibers, using 15 of the outlet openings.

The fiber structure, consisting of a shell and core, leaving holes 23C, skipped through the tub 24 length of 1.5 m, filled with water with a temperature of 80°C. to form crystals on its surface.

It was then stretched by passing through the platen 25 and the chamber 26 at a temperature of 180°C and subjected to heat-setting by passing through the platen 27 and the chamber 28 at a temperature of 180°C, then was subjected to annealing to stabilize the size of the diameter of the thread passing through the roller 29 and the chamber 30 at a temperature of 185°C and has been passed through a sizing 31 to prevent the accumulation of electrostatic ZAR is Yes.

In the last step, the surface of the fibers was reduced by blowing on the surface of the alumina powder passing through the platen 32 and the mechanism 33, and then the fiber was wound mechanism 34. The speed of the rollers 25, 27, 29, 32 was adjusted so that the elongation was 5.5, and the winding speed when this technology was 150 m/min

The diameters of all manufactured so hair 10 was in the range of 40-80 microns. In Example 1, the elongation was 5.5, but, as shown in the following Example 3, the bending stiffness of the hair 10 could be specified elongation.

Example 2

[0044] the Hair 10 with a structure consisting of a shell and core, were made under conditions similar to those described in Example 1, except that the volume ratio of sheath/core was selected 1/5 by adjusting the operation of the respective pumps 21V and 22V. Hair 10 in Example 2, the weight ratio of sheath/core 16,1/83,9.

Example 3

[0045] the Hair 10 with a structure consisting of a shell and core, were made under conditions similar to those described in Example 1, except that the volume ratio of sheath/core 1/3 was chosen by adjusting the operation of the respective pumps 21V and 22V. Hair 10 in Approx the re 3 the weight ratio of sheath/core was 24.2/75,8, and their diameter was equal to 80 micrometers.

7 depicts a graph of the relationship between elongation and bending stiffness of the hair 10 of Example 3. Drawing on the x-axis values relative elongation, and on the y - axis stiffness in bending, expressed in 10-5g-force·cm2/thread hair. The measurements were carried out at a temperature of 22°C and humidity of 40%. As can be seen from Fig.7, the bending stiffness for a relative elongation 3 430×10-5g-force·cm2/thread hair, and for a relative elongation of 5.5-720×10-5g-force·cm2/thread hair, illustrating the fact that the bending stiffness increases linearly with increasing relative elongation.

Example 4

[0046] Hair 10 with a structure consisting of a shell and core, were made under conditions similar to those described in Example 1, except that the volume ratio of sheath/core 1/2 was chosen by adjusting the operation of the respective pumps 21V and 22V. Hair 10 in Example 4, the weight ratio of sheath/core was 32.3/67,7.

Example 5

[0047] Hair 10 of Example 5 were manufactured under conditions similar to those described in Example 1, except that as polyamide for part 1A was used nylon 66 (manufactured by Mitsubishi Engineering Plastic is e limited), and a bath temperature of 24 was equal to 92°C, and the output hole 320°C. For hair 10 in Example 5, the weight ratio of sheath/core ratio of 16.2/83,8.

Process of manufacturing artificial hair in the above Examples 1-5 are shown in Table 1, in which the values of the diameters of all hair 10 are in the range of 40-80 microns.

Table 1
Example12345
PolymerCoreNylon 6TNylon 6TNylon 6TNylon 6TNylon 6T
The shellNylon 6Nylon 6Nylon 6Nylon 6Nylon 66
The volumetric ratio of the sheath/core1/71/51/3/2 1/5
The temperature at the exit hole (°C)310310310310320
The proportion of dyeBlack0,15%0,15%0,15%0,15%0,30%
Yellow0,30%0,30%0,30%0,30%0,30%
Red0,04%0,04%0,04%0,04%0,04%
The cooling water temperature (°C)8080808092
The weight ratio of sheath/core artificial hair12:8816,1:83,924,275,8 32,3:67,716,2:83,8

Example 6

[0048] Hair 10 of Example 6 was manufactured under conditions similar to those described in Example 1, except that as polyamide for part 1B was used nylon MXD6 (produced by Mitsubishi ESG chemical company Inc), and polyamide for part 1A was used nylon 6 (manufactured by Mitsubishi Engineering Plastics limited), the temperature at the outlet of the outlet was equal to 270°C, and the volumetric ratio of the sheath/core was 1/7. Hair 10 Example 6 the weight ratio of sheath/core amounted to 11.8/88,2. Hair 10 in this example, instead of nylon 6T, used for the core part in Examples 1-5 was used nylon MXD6. Here, the fiber was stretched by using exhaust bath with hot water with a temperature of 95°C instead of the camera 26 Example 1, subjected to heat-setting in the chamber 28 at a temperature of 150°C, then subjected to annealing to stabilize the size of the diameter of the thread through the passes through the roller 29 and the chamber 30 at a temperature of 185°C and passed through a sizing 31 to prevent the accumulation of electrostatic charge.

At the final stage of coarsening the surface of the artificial hair was carried out analogously to Example 1. / Min net is ü rollers 25, 27, 29, 32 was adjusted so that the elongation was 5.6, and the winding speed when this technology was 150 m/min

The diameters of all manufactured so hair 10 was in the range of 40-80 microns.

Example 7

[0049] Hair 10 in Example 7 were made under conditions similar to those described in Example 6, except that the volume ratio of sheath/core was taken 1/5. Thus the weight ratio of sheath/core 15.8/84,2.

Example 8

[0050] the Hair 10 of Example 8 was manufactured under conditions similar to those described in Example 6, except that the volume ratio of sheath/core was taken 1/4. Thus the weight ratio of sheath/core 18.9/81,1.

Example 9

[0051] the Hair 10 in Example 9 were manufactured under conditions similar to those described in Example 6, except that the volume ratio of sheath/core was taken 1/3. Thus the weight ratio of sheath/core accounted for 23.8/76,2.

Example 10

[0052] Hair 10 in Example 10 were manufactured under conditions similar to those described in Example 6, except that the volume ratio of sheath/core was taken 1/2. Thus the weight ratio of sheath/core was 31.8/68,2. Process of manufacturing artificial hair above the written Examples 6-10 are shown in Table 2, in which the values of the diameters of all hair 10 are in the range of 40-80 microns.

Table 2
Example678910
PolymerCoreNylon MXD6Nylon MXD6Nylon MXD6Nylon MXD6Nylon MXD6
The shellNylon 6Nylon 6Nylon 6Nylon 6Nylon 6
The volumetric ratio of the sheath/core1/71/51/41/31/2
The temperature at the exit hole (°C)270270270270 270
The proportion of dyeBlack0,18%0,18%0,18%0,18%0,18%
Yellow0,45%0,45%0,45%0,45%0,45%
Red0,04%0,04%0,04%0,04%0,04%
The cooling water temperature(°C)8080808080
The weight ratio of sheath/core artificial hair11,8:88,215,8:84,218,9:81,123,8:76,231,8 is 68.2

[0053] the following describes the artificial hair of Comparative examples.

(Comparative example 1)

The thread was made of betablocker diameter of 80 μm and a relative elongation of 3.3 out of nylon 6 using the same molding machine, as in Example 1, with the outlet temperature of the outlet 270°With and without the use of cylinder 21.

[0054]

(Comparative example 2)

The thread was made without a shell with a diameter of 80 μm and a relative elongation of 5.5 nylon 6T, using the same molding machine as in Example 1, with the outlet temperature of the outlet 310°With and without the use of cylinder 21.

[0055]

(Comparative example 3)

The thread was made with a volume ratio of shell to core 1/1, diameter of 80 μm and a relative elongation of 5.5 of complex polyester (production company Toray limited (TORAY, LTD.)) for part 1B and nylon 6 for part 1A using the same molding machine as in Example 1, with the outlet temperature of the outlet 290°C.

[0056]

(Comparative example 4)

The thread was made without a shell with a diameter of 80 μm and a relative elongation of 5.6 nylon MXD6 in accordance with the terms and in the manner described in Example 6, using the same molding machine as in Example 1, with the outlet temperature of the outlet 270°With and without the use of cylinder 21.

[0057]

(Comparative example 5)

The thread was made without a shell with a diameter of 80 μm and a relative elongation of 5.6 of mixed polyamides of the nylon MXD6, and nylon 6 in accordance with the terms and in the manner opisannymi Example 6, using the same molding machine as in Example 1, with the outlet temperature of the outlet 270°With and without the use of cylinder 21. The weight ratio of nylon MXD6 and nylon 6 was 90:10. The compositional ratio of the dyes was similar in all Comparative examples 1-5 and reached for the black, yellow and red dyes, respectively, of 0.15%, 0.30% and 0.04%of.

Technological conditions are shown in Table 3.

Table 3
Comparative example12345
PolymerCoreNylon 6Nylon 6TComplex polyesterNylon MXD6Mixed polyamide
The shell--------Nylon 6---------
The volumetric ratio of the sheath/core --------1/1---------
The temperature at the exit hole (°C)270310290270270
The proportion of dyeBlack0,15%0,15%0,15%0,15%0,15%
Yellow0,30%0,30%0,30%0,30%0,30%
Red0,04%0,04%0,04%0,04%0,04%
The cooling water temperature(°C)8080808080

[0058] Hereinafter explained why part 1B hair 10 used nylon 6T or MXD6, and for part 1A of the Sample 1 - nylon 6.

Table 4 shows the relationship between humidity and bending stiffness at a temperature of 22°With artificial hair made of a polyamide type nylon 6 in Comparative example 1, nylon 6T in Comparative example 2, and nylon MXD6 in Comparative example 4. Bending stiffness measured using the corresponding device manufactured by Cytotec limited (KATTEN, LTD.), as is described below.

As can be seen from Table 4, the values of the rigidity in bending of the artificial hair of nylon 6 in Comparative example 1 was 510×10-5Gauss·cm2/thread hair, 340×10-5Gauss·cm2/thread hair and 250×10-5Gauss·cm2/thread hair accordingly with humidity of 40%, 60% and 80%. In table 4 are not shown, but the dependence of stiffness on bending from humidity for artificial hair of nylon 66 was approximately the same as for nylon 6.

Stiffness in bending of the artificial hair made of nylon 6T in Comparative example 2 was 980×10-5Gauss·cm2/thread hair, 920×10-5Gauss·cm2/thread hair and 860×10-5Gauss·cm2/thread hair accordingly with humidity of 40%, 60% and 80%.

Stiffness in bending of the artificial hair made of nylon MXD6 in Comparative example 4 was 940×10-5Gauss·cm2/thread hair, 870×10-5Gauss·cm2/thread hair and 780×10-5 Gauss·cm2/thread hair accordingly with humidity of 40%, 60% and 80%. These results show that the artificial hair made of nylon 6T and nylon MXD6 have a higher bending stiffness than the hair of nylon 6 or nylon 66.

This explains why artificial hair in Examples 1-10 are part 1B, made of nylon type nylon 6T or nylon MXD6 having a high bending stiffness, and the part 1A, made of nylon type nylon 6 or nylon 66 having a lower bending stiffness than the material of part 1 Century

Table 4
Comparative example124
PolymerNylon 6Nylon 6TNylon MXD6
Bending stiffness at a temperature of 22°C for each value of humidity (×10-5Gauss·cm2)40%510980940
60%340920870
80%250860780

[0059] the following describes various properties of the artificial hair made in the above Examples 1-10 and Comparative examples 1-5.

On Fig presents the image of the cross-section of artificial hair, shown in Example 2, the obtained electron microscope. Accelerating voltage was equal to 15 kV, and the fold increase was equal to 800. For this hair 10 volumetric ratio of sheath/core amounted to 1/5 the diameter was 80 μm, and the elongation of 5.5. As can be seen from the drawing, the structure of the sheath/core was made of polyaromatics polyamide (nylon 6T) as part of 1V and a linear saturated aliphatic polyamide (nylon 6) as part 1A around the core.

[0060] figure 9 presents the image of the surface of artificial hair, shown in Example 2, the obtained electron microscope. Accelerating voltage was equal to 15 kV and a magnification of € 700. As can be seen from the drawing, on the surface of the linear saturated aliphatic polyamide, nylon 6, were formed and grown crystals to create concavity and convexity 1C on its surface.

[0061] figure 10, not only is but the image of the cross-section of artificial hair, shown in Example 3, the obtained electron microscope. Accelerating voltage was equal to 15 kV and a magnification of amounted to 900. For this hair 10 volumetric ratio of sheath/core amounted to 1/3 of the diameter was 80 μm, and the elongation of 5.5. As can be seen from the drawing, the structure of the sheath/core was made of polyaromatics polyamide, nylon 6T, as part of 1V and a linear saturated aliphatic polyamide, nylon 6, as part 1A around the core.

[0062] figure 11 presents the obtained electron microscope image of the cross-section of artificial hair having the structure of sheath/core, as shown in Comparative example 3. Accelerating voltage was equal to 15 kV and a magnification of up to 300.

The artificial hair of Comparative example 3 had a structure of sheath/core, composed of part 1B, is made on the basis of a complex of the polyester, and part 1A made of a linear saturated aliphatic polyamide, nylon 6. The weight ratio of sheath/core amounted to 1/1, the thread diameter was 80 μm, and the elongation of 5.5. As can be seen from the drawing, the surface of the parts 1B and parts 1A is detached, the fibre was brownish-white, the color has changed, and thus it turned out that this structure, consisting the I of the shell and core, not suitable for artificial hair.

[0063] the following describes the results of measurements of the rigidity in bending of the artificial hair in the Examples and Comparative examples.

Bending stiffness is a physical property that is applicable in General to fiber, etc. and more recently for hair and related to such things as appearance, feel, texture, etc.

To measure the bending stiffness of the fibers in textiles use a well-known method proposed by Kawabata, the principles of which are implemented in a device that is intended to test the hair bending (manufactured by Cytotec limited, model KES-FB2-SH), and which is used for measuring the bending stiffness of the artificial hair. Methods of measurement in Examples and Comparative examples in accordance with the present invention for artificial and natural hair is that one thread each hair 1 cm long curve along the arc of a circle with uniform speed to achieve a given curvature, determine the resulting instantaneous bending moment, thereby measuring the relationship of the bending moment and curvature. Thus, the bending stiffness was obtained by the ratio of bending moment to the change of curvature.

Representative measurement conditions below.

(Measuring conditions)

Ristaniemi clips: 1 cm

The torque sensor: determining the torque of a torsion wire (steel wire)

The sensitivity of the measurement of torque: 1.0 for Gauss·cm2(measuring range 10 In)

Curvature:±2.5 cm-1

The coefficient of variation of bending: 0.5 cm-1/s

The measuring cycle: 1 full circle

Here the clip is a mechanism for fixing each of the specified hair length 1, see

[0064] On Fig chart shows the dependence of stiffness on bending synthetic hair shown in Examples 1-5 and Comparative examples 1 and 2, from moisture. Drawing on the x-axis values of moisture content (%)and on the y - axis stiffness in bending (10-5Gauss·cm2/thread hair).

The measurements were carried out at a temperature of 22°C. On Fig shows the dependence on the humidity of the rigidity in bending of the artificial hair in the Examples and Comparative examples together with the dependence of the natural hair. Because of the properties of natural hair are very different depending on who they belong to, were collected hair 25 men and 38 women aged 20 to 50 years old, was measured bending stiffness of the samples with a diameter of 80 μm, and their average value was taken as the standard value. The maximum and minimum values were represented in the drawing. From the graph we see that the average of spaceneedle bending natural hair was 720×10 -5Gauss·cm2/thread hair and 510×10-5Gauss·cm2/thread hair for humidity 40% and 80%, respectively, and gradually decreases with increasing humidity.

On the other hand, the maximum value of the rigidity in bending natural hair amounted to 740×10-5Gauss·cm2/thread hair and 600×10-5Gauss·cm2/thread hair for humidity 40% and 80% respectively, and its minimum value was equal to 660×10-5Gauss·cm2/thread hair and 420×10-5Gauss·cm2/thread hair respectively for humidity 40% and 80%, thus it is seen that the bending stiffness of natural hair is characterized by a wide divergence of values.

[0065] Hair 10 of Example 1 had a diameter of 80 μm, and the volume ratio of sheath/core was 1/7. Their bending stiffness is 740×10-5Gauss·cm2/thread hair for humidity 40%, which equals the maximum value for natural hair, and gradually decreases with increasing humidity, falling almost to 700×10-5Gauss·cm2/thread hair at a humidity of 60% and approximately 650×10-5Gauss·cm2/thread hair at a humidity of 80%.

These results show that hair 10 of Example 1 have a higher bending stiffness than natural hair, but in comparison to artificial hair made of nylon 6 Comparative example 1, and artificial and hair of nylon 6T Comparative example 2, mentioned below, they have a bending stiffness and its dependence on humidity, similar to natural hair.

[0066] Hair 10 of Example 2 had a diameter of 80 μm, and the volume ratio of sheath/core amounted to 1/5. Their bending stiffness is 720×10-5Gauss·cm2/thread hair with humidity of 40%, which equals the value of the natural hair, and gradually decreases to approximately 650×10-5Gauss·cm2/thread hair at a humidity of 45%.

Then for humidity from 45 to 60% of the value of the bending stiffness remains constant and equals approximately 650×10-5Gauss·cm2/thread hair. In the range humidity 60-80%, the bending stiffness is gradually reduced to approximately 600×10-5Gauss·cm2/thread hair at a humidity of 80%.

These results show that in the case of hair 10 of Example 2, the bending stiffness was equal stiffness bending natural hair with humidity of 40% and decreased with increasing humidity, thus, their bending stiffness and its dependence on humidity similar to natural hair.

[0067] the Difference hair 10 of Example 3 from Example 1 is that the volumetric ratio of the sheath/core amounted to 1/3. Their bending stiffness is 720×10-5Gauss·cm2/thread hair with humidity of 40%, which equals the value of the natural hair, and to decrease with the change in VL is gnosti in the range of 40-60% to approximately 520×10 -5Gauss·cm2/thread hair at a humidity of 60%.

When humidity 60-80%, the bending stiffness is gradually reduced to approximately 480×10-5Gauss·cm2/thread hair for humidity of 80%.

These results show that in the case of hair 10 of Example 3, the bending stiffness was equal stiffness bending natural hair with humidity of 40% and decreased with increasing humidity, thus, the bending stiffness was quite close to the values of natural hair at a humidity of 80%.

[0068] the Difference hair 10 of Example 4 from Example 1 is that the volumetric ratio of the sheath/core amounted to 1/2. Their bending stiffness is 720×10-5Gauss·cm2/thread hair with humidity of 40%, which equals the value of the natural hair, and decreases when the values of humidity 40-60% to approximately 510 ×10-5Gauss·cm2/thread hair for humidity 60%.

When humidity 60-80%, the bending stiffness is gradually reduced to approximately 390×10-5Gauss·cm2/thread hair for humidity of 80%.

These results show that in the case of hair 10 of Example 4, the bending stiffness was equal stiffness bending natural hair with humidity of 40% and decreased with increasing humidity, thus, the bending stiffness was close to the minimum value of natural hair when wlasnosci%.

The reason why the bending stiffness of the hair 10 in Examples 2-4 was lower than in Example 1 at a humidity of 40% or higher, is that the amount of part 1A was higher than in Example 1, in other words, the volume of the part 1B was less.

Therefore, for the proposed artificial hair dependence of stiffness on bending from the humidity may change when the volume ratio of the shell and the core. Thus, in the case of hair 10 in Examples 2-4 bending stiffness was equal stiffness bending natural hair with humidity of 40% and decreased with increasing humidity, and its dependence on humidity were similar to natural hair.

[0069] the Difference hair 10 of Example 5 from Example 1 is that the shell was made of nylon 66. In Example 5, the bending stiffness is 780×10-5Gauss·cm2/thread hair with humidity of 40%, which is higher than the value of natural hair, and decreases almost linearly in the range humidity of 40-50% to approximately 650×10-5Gauss·cm2/thread hair at a humidity of 50%. In the range humidity (50-80% of the bending stiffness is reduced to approximately 600×10-5Gauss·cm2/thread hair with the slope of the curve, is approximately equal to Example 1.

These results show that in the case of hair 10 of Example 5, the bending stiffness was higher stiffness bending natural in the OS at a humidity of 40% and decreased with increasing humidity. In the case of hair 10 of Example 5, the bending stiffness was higher stiffness bending in Examples 1-4, when values of the humidity of 40-50%.

Thus, in the case of hair 10 of Example 5, the bending stiffness was close to the rigidity of the bending natural hair and decreased with increasing humidity, the bending stiffness of these hair and its dependence on humidity were similar to natural hair.

[0070] the Artificial hair of Comparative example 1 were made of nylon 6, the thread diameter was 80 μm, and the elongation was 3.3. For these artificial hair bending stiffness was approximately 510×10-5Gauss·cm2/thread hair with humidity of 40%, which accounted for about 70% of the value of natural hair.

It decreased almost monotonically with increasing humidity of approximately 250×10-5Gauss·cm2/thread hair with 80%humidity. This value was about 50% of the value of natural hair. Bending stiffness in Comparative example 1 was significantly lower values of natural hair or synthetic hair in Examples 1-5 on the whole measured range humidity.

[0071] the Artificial hair of Comparative example 2 were made of nylon 6T, the thread diameter was 80 μm, and the elongation was 5.5. For these artificial hair rigidity and who were dying equivalent to approximately 980×10 -5Gauss·cm2/thread hair with humidity of 40%, which amounted to about 136% of the value of natural hair.

It decreased almost monotonically with increasing humidity and approximately 860×10-5Gauss·cm2/thread hair with 80%humidity. This value was about 170% of the value of natural hair. Bending stiffness in Comparative example 2 was significantly higher values of natural hair or synthetic hair in Examples 1-5 on the whole measured range humidity.

In Comparative example 3, between the part 1A and part 1B happened peeling, as mentioned above, and because they could not be used as artificial hair, bending stiffness was not measured.

[0072] the following describes the dependence on the humidity of the rigidity in bending of the artificial hair in Examples 6-10. On Fig chart shows the dependence of stiffness on bending synthetic hair shown in Examples 6-10 and Comparative examples 1, 4 and 5, from moisture. Drawing on the x-axis values of moisture content (%)and on the y - axis stiffness in bending (10-5Gauss·cm2/thread hair). The measurements were carried out at a temperature of 22°C. On Fig, as Fig, shows the average, maximum and minimum values of stiffness bending natural hair. Distinct hair 10 of Example 6 from Example 1 for luchetta is what part 1B was made of nylon MXD6, the thread diameter was 80 μm, and the volume ratio of sheath/core was 1/7.

As can be seen from Fig, if the bending stiffness of the hair 10 of Example 6 is 730×10-5Gauss·cm2/thread hair for humidity 40%, which is approximately equal to the average value of the natural hair, and gradually decreases with increasing humidity. It is approximately 660×10-5Gauss·cm2/thread hair at a humidity of 60% and about 600×10-5Gauss·cm2/thread hair at a humidity of 80%.

These results show that in the case of hair 10 of Example 6, the bending stiffness was approximately equal stiffness bending natural hair with humidity of 40% and decreased with increasing humidity, and the behavior of these hair similar to the behavior of natural hair. That is for hair 10 of Example 6, the bending stiffness and its dependence on humidity were similar to natural hair.

[0073] the Difference hair 10 of Example 7 from Example 6 consists only in the fact that the volume ratio of sheath/core was 1/5.

As can be seen from Fig, the bending stiffness of the hair 10 of Example 7 is 730×10-5Gauss·cm2/thread hair with humidity of 40%, which is approximately equal to the average value of the natural hair, and is reduced to 620×10-5Gauss·cm2/thread hair silicenium humidity of approximately 50%. Then it gradually decreases and is about 610×10-5Gauss·cm2/thread hair for humidity 60%. Further, the bending stiffness is gradually decreasing on the interval humidity of 60-80% to 560×10-5Gauss·cm2/thread hair for humidity of 80%.

These results show that the bending stiffness of the hair 10 of Example 7 was approximately equal stiffness bending natural hair with humidity of 40%, it decreased with increasing humidity, and the behavior of these hair similar to the behavior of natural hair. In other words, for hair 10 of Example 7, the bending stiffness and its dependence on humidity were similar to natural hair.

[0074] the Difference between hair 10 of Example 8 from Example 6 consists only in the fact that the volume ratio of sheath/core was 1/4.

As can be seen from Fig, in the case of hair 10 of Example 8, the bending stiffness is 730×10-5Gauss·cm2/thread hair with humidity of 40%, which equals the average value of the natural hair, and decreases with increasing humidity in the range of 40-60% to 560×10-5Gauss·cm2/thread hair for humidity 60%. Then it gradually decreases on the interval humidity of 60-80% and is about 490×10-5Gauss·cm2/thread hair at a humidity of 80%.

These results show that in the case of hair 10 of Example 8, the bending stiffness was when listello equal stiffness bending natural hair with humidity of 40%, the hardness decreased with increasing humidity, and the behavior of these hair similar to the behavior of natural hair.

[0075] the Difference hair 10 of Example 9 from Example 6 consists only in the fact that the volume ratio of sheath/core accounted for 1/3.

As can be seen from Fig, the bending stiffness of the hair 10 of Example 9 is 730×10-5Gauss·cm2/thread hair with humidity of 40%, which is approximately equal to the average value of the natural hair, it decreases with increase in humidity in the range of 40-60% to 530×10-5Gauss·cm2/thread hair at a humidity of 60%. Then it gradually decreases on the interval humidity 60-80% 440×10-5Gauss·cm2/thread hair at a humidity of 80%.

These results show that the bending stiffness of the hair 10 of Example 9 was approximately equal stiffness bending natural hair with humidity of 40%, the hardness decreased with increasing humidity, and the behavior of these hair similar to the behavior of natural hair.

[0076] the Difference between hair 10 of Example 10 from Example 6 consists only in the fact that the volume ratio of sheath/core was 1/2.

As can be seen from Fig, the bending stiffness of the hair 10 of Example 10 is 730×10-5Gauss·cm2/thread hair with humidity of 40%, which is approximately equal to the average value of the natural hair, she is elsaelsa with increasing humidity in the range of 40-60% to 490×10 -5Gauss·cm2/thread hair at a humidity of 60%. Then it gradually decreases on the interval humidity of 60-80% to 380×10-5Gauss·cm2/thread hair.

These results show that the bending stiffness of the hair 10 of Example 10 was approximately equal stiffness bending natural hair with humidity of 40% and the hardness decreased with increasing humidity. In excess of 60% humidity level bending stiffness of the hair 10 was lower stiffness bending natural hair, but in comparison to artificial hair made of nylon 6 in the specified Comparative example 1 or hair of nylon MXD6 mentioned in the following Comparative example 4, the behavior of these hair similar to the behavior of natural hair.

[0077] the Artificial hair of Comparative example 4 is made of nylon MXD6, the thread diameter is 80 μm, the bending stiffness is 940×10-5Gauss·cm2/thread hair with humidity of 40% and decreases on the interval humidity of 40-60% to 870×10-5Gauss·cm2/thread hair for humidity 60%. Further, the bending stiffness is gradually decreasing on the interval humidity of 60-80% to 560×10-5 Gauss·cm2/thread hair for humidity of 80%. Bending stiffness in Comparative example 4 was significantly higher values of natural hair or synthetic hair in Examples 6-10 throughout the measured range humidity is I.

[0078] the Artificial hair of Comparative example 5 were made of nylon MXD6 with 10% mixed with nylon 6, and the diameter of the thread was equal to 80 μm. Their bending stiffness is 870×10-5Gauss·cm2/thread hair with humidity of 40% and decreases to approximately 720×10-5Gauss·cm2/thread hair at a humidity of 60%. Further, the bending stiffness is gradually decreasing on the interval humidity of 60-80% to 610×10-5Gauss·cm2/thread hair for humidity of 80%. Bending stiffness in Comparative example 5 was significantly higher values of natural hair or synthetic hair in Examples 6-10 throughout the measured range humidity.

Here, as on Fig, the bending stiffness of the artificial hair of Comparative example 1 are shown together and was significantly below the value of the natural hair or artificial hair in Examples 6-10 throughout the measured range humidity.

[0079] As shown in Fig or 13, there is a tendency for individual deviation values of stiffness bending natural hair unlike hair, obtained by artificial means, and the dependence of stiffness on bending from moisture is a wide range. The bending stiffness of natural hair when the humidity was in the range from the minimum value 660×10-5Gauss·cm2/thread hair to a four-s the value 740×10 -5Gauss·cm2/thread hair with humidity of 40%, and the range of this deviation was 80×10-5Gauss·cm2/thread hair. At a humidity of 60% minimum value was equal to 520×10-5Gauss·cm2/thread hair, the maximum value was equal to 660×10-5Gauss·cm2/thread hair, and the deviation range was 140×10-5Gauss·cm2/thread hair, which exceeds the appropriate range with humidity of 40%. Next to humidity of 80% deviation range was even wider with a minimum value equal to 420×10-5Gauss·cm2/thread hair, and a maximum value of 600×10-5Gauss·cm2/thread hair.

[0080] In accordance with Examples 1-10, executing a shell made of nylon 6 or nylon 66, a core of nylon 6T or nylon MXD6 and varying the volume ratio of the shell and core were obtained hair 10 with bending stiffness and its dependence on humidity, similar to natural hair. As shown in Fig and 13, for hair 10, manufactured using nylon 6T or nylon MXD6 as part 1V, with a volume ratio of sheath/core, is equal to approximately 1/2, the bending stiffness is close to the minimum value of the bending stiffness of natural hair and hair 10 made with a volume ratio of sheath/core of the order of 1/7, the bending stiffness is close to the maximum is the value of stiffness in bending natural hair.

[0081] For hair 10 with a structure composed of a shell and core, with part 1B of polyaromatics polyamide and part 1A of the aliphatic polyamide, with a volumetric ratio of the sheath and a core within 1/2-1/7, bending stiffness was similar stiffness bending natural hair. As can be seen from Tables 1 and 2, the weight ratio of the shell and core of the hair 10 is made with a volume ratio of sheath/core within 1/2-1/7, is in the range of 10/90-35/65.

In particular, in the case of hair 10 in Examples 6-10 with a sheath of nylon 6 and a core of nylon MXD6 the values of their stiffness in bending are between the maximum and minimum values of stiffness bending natural hair when the humidity of 40-50% and a temperature of 22°C and a change similar to the change in the average value of stiffness in bending. In addition, when humidity is more than 50% of the bending stiffness of the hair 10 in Examples 6 and 7 changes similar to the changes of the maximum value of the bending stiffness of natural hair, the bending stiffness of the hair 10 in Example 8 changes similar to the changes of the mean values of stiffness bending natural hair, and bending stiffness of the hair 10 in Examples 9 and 10 changes similar to changing the minimum value of natural hair.

[0082] the following describes the changes of the artificial hair, see P is imarah, when the absorption of moisture.

On Fig-16 depicts respectively the hair with curls in original condition, moistened with water and then dried, where (A) artificial hair shown in the Example in accordance with the present invention, (B) - natural hair, (S) - traditional artificial hair is made on the basis of a complex of the polyester. Every hair was tied at the top, and drying took place in a natural way.

As can be seen from Fig, first of all the hair was the same length and the same diameter of the curls. From Fig shows that water-soaked offer hair 1, 10, discussed in the Examples, when the water absorption was stretched and changed its length similar to natural hair (see Fig(a) and (b)). On the other hand, due to low moisture absorption artificial hair on the basis of complex polyester is not pulled, the lock was not deformed in contrast to the natural curl of the hair (see Fig(C)).

Dry after wetting with water hair 1, 10, discussed in the Examples, took the original shape essentially similar to natural hair (see Fig(a) and (b)). Although in the drawings, it is not depicted, but known that hair artificial hair made of materials other than polyester, stretch when wetted, for example by water and do not recover easily its forms is after removal of moisture in a natural way.

Consequently, curly offer hair 1, 10 behave like natural hair, flattening when watered and restoring its shape after removal of moisture in a natural way.

[0083] as for the hair 10 in the above Examples 1-10, it is seen that the bending stiffness at 40% humidity and a temperature of 22°C or coincides with an average value of natural hair that is 720×10-5Gauss·cm2/thread, hair, or very close to this value. In addition, from the drawings it is seen that the reduction of bending stiffness with increasing humidity up to 80% almost coincides with the similar characteristics of natural hair. Moreover, it is clear that the hair 10 behave similarly to natural hair, flattening when watered and returning to the initial state of the lock after the removal of moisture in a natural way.

Example 11

[0084] Were made of different hair 10 of different diameters, similar to hair 10 in Examples 1-10, from which was made the wig, as shown in figure 5. This wig synthetic hair of different diameter were placed so that they were similar to natural hair due to the design of swirls, made on the part of the hair, resulting in hair line and the edge of the wig didn't look unnatural.

With regard to the evaluation of the wig user, OKRUZHAJUSHHEJJ, such feelings as appearance, feel and texture were quite natural, and when wet in the rain or shower supine position of the hair, condition loosening the curls and such feelings as appearance, feel and texture did not differ from the native hair of a person, as shown in Fig.6 and Fig-16, there was no separation of hair and thus, a wig can be quite comfortable to wear.

[0085] In accordance with the above Examples show that artificial hair made in accordance with the present invention, have a bending stiffness at 40% humidity and a temperature of 22°C, which either coincides with the average value of natural hair that is 720×10-5Gauss·cm2/thread, hair, or very close to this value, and the bending stiffness decreases with increasing humidity, also behaves the same way as natural hair.

Therefore, of the drawings also shows that, since the wig 40, manufactured using the proposed hair 1 or 10, causes a sensation, caused the appearance, tactile and texture and is similar to the sensations caused by natural hair, and these characteristics change similar to natural hair in high humidity or wet in the water, it can be worn with a sense of naturalness.

[0086] the Present invention is s limited to the above Examples, and it is obvious that different embodiments are possible within the scope of the invention defined by its formula, included in the scope of the present invention. For example, to obtain the necessary rigidity to bending and other properties, you can choose the suitable polyamides.

1. Artificial hair having a structure containing the core portion covering the shell portion, wherein the core portion is made of a polyamide, and the shell portion is made of a polyamide having a lower bending stiffness than the core part.

2. Artificial hair according to claim 1, characterized in that its surface is treated to eliminate Shine through the implementation of small concavity and convexity.

3. Artificial hair according to claim 2, characterized in that the fine concavity and convexity formed by the crystals and/or inkjet processing.

4. Artificial hair according to claim 1, characterized in that it is the core part is made of polyaromatics polyamide, and a shell part of a linear saturated aliphatic polyamide.

5. Artificial hair according to claim 4, characterized in that said polyaromatics the polyamide is a copolymer with alternating links of diamine and terephthalic acid or a copolymer with alternating links of methoxylamine, adipin the howling acid.

6. Artificial hair according to claim 4, characterized in that said linear saturated aliphatic polyamide is a polymer obtained by polymerization of caprolactam with opening cycle, and/or copolymer with alternating links of diamine and adipic acid.

7. Artificial hair according to claim 1, characterized in that the mass ratio of his shell and core pieces is 10/90-35/65.

8. Artificial hair according to claim 1, characterized in that it contains a pigment and/or dye.

9. Wig, containing the base and attached thereto, artificial hair, characterized in that, these artificial hair has a structure containing the core portion covering the shell portion and the core portion is made of a polyamide, and the shell portion is made of a polyamide having a lower bending stiffness than the core part.

10. The wig according to claim 9, characterized in that the surface of the artificial hair is treated to eliminate Shine through the implementation of small concavity and convexity.

11. The wig of claim 10, wherein the fine concavity and convexity formed by the crystals and/or inkjet processing.

12. The wig according to claim 9, characterized in that the core part is made of polyaromatics polyamide shell and part of the line n is Semenovo aliphatic polyamide.

13. The wig according to item 12, characterized in that said polyaromatics the polyamide is a copolymer with alternating links of diamine and terephthalic acid or a copolymer with alternating links of methoxylamine and adipic acid.

14. The wig according to item 12, characterized in that said linear saturated aliphatic polyamide is a polymer obtained by polymerization of caprolactam with opening cycle, and/or copolymer with alternating links of diamine and adipic acid.

15. The wig according to claim 9, characterized in that the mass ratio of these shell and core pieces is 10/90-35/65.

16. The wig according to claim 9, characterized in that, these artificial hair contains pigment and/or dye.



 

Same patents:

Disposable wig // 2339283

FIELD: household goods and personal effects.

SUBSTANCE: disposable wig includes base made of very thin sheet, hair segments implanted into base and adhesive layer applied to the bottom side of base. Base thickness is microns order (μ). Adhesive layer is evenly applied to the whole bottom side of base and thick enough to ensure reasonable irregularity with projecting parts and other parts. Projecting parts contact with root parts of implanted hair segments projected from bottom side of base, and are lifted with regard to external side of base when wig is fixed to human skin. Adhesive layer thickness is to 20 times more than base thickness.

EFFECT: easy in use and imitation of natural hair.

2 cl, 4 dwg

FIELD: household goods and personal effects.

SUBSTANCE: method of work piece production from natural hair to be used in wig items includes operations associated with mixing of different colour hair, treatment, ripping at card and sorting out by length. Hair of different length is mixed simultaneously with hair of different colour forming hair bundle of no more than 160 g weight. For disinfection purposes hair bundle is treated simultaneously with rippling at card by means of kerosene and hair oil mixture. Rippled hair is taken into bundle allocating short hair into centre and leaving long hair from the outside. Bundle is tied up in the middle part, and by means of at least one card it is pulled out to produce one-side balanced tail. Then tail is laid and small tails with no more than 55 g weight and length difference of no more than 5 cm are produced by contracting. After that tails are washed for complete closing of flakes and repeatedly disinfected. Tails are checked for inverted elements and inverted hair is removed. Work pieces with weight of no more than 30 g are formed. Starting from the heads, they are moisturised and fasten together at a distance of no more than 2.7 cm from the edge.

EFFECT: production of more qualitative wig items with smoothness and brilliance effect.

4 cl

FIELD: medicine.

SUBSTANCE: hair transplantation method implies stretching of substrate made of elastic material, taking of middle part of hair piece by needles imposed to make reciprocal movement to form curve of the said middle part. The curve is left on one side of the substrate and than affixed to this side using the first binding layer. A couple of long sections of hair from the opposite curve ends are passed through the holes formed in the result of needling when they were elevated, to the other side of the substrate. After transplantation of given amount of hair sections, stretching of the substrate is stopped or released to ensure substrate shrinkage due to its elasticity and thus, reduction of holes' diameter. Then the second binding layer is applied on the entire first side of the substrate to affix it to skin integument of human body. There is a device to implement the said method and a product with transplanted hair.

EFFECT: development of efficient method of hair transplantation.

22 cl, 36 dwg

FIELD: manufacture of partial or full wigs or hair prostheses for replacing lacking hairs in problematic head zones.

SUBSTANCE: hair prosthesis has forehead part made from flexible material of desired contour and strips having front and rear faces approaching each other in back region of the head for forming strips of restricting contour and strips defining contour. Prosthesis base is made from material having smooth sliding surface with successively applied impregnation layers of gluing substance, and consists of strips overlapping each other along arc of the circle and provided with margins. Said strips are made from glued material defining three-dimensional spherical shape of base with forehead part and part of back of the head and including strips of restricting contour, contour forming strips, and strip of back of the head. Front faces of strips are tightened over front surfaces of forehead part, for example, along share restricting thread of material. All overlapped portions of strips are secured to each other by, for example, stitches. Parts of strips in left and right temple regions of each strip are fixed by, for example, gluing-through in back region of the head of base. Hair prosthesis is adapted for constant wearing without necessity of removal said wig from head for night.

EFFECT: increased efficiency and simplified structure of hair prosthesis.

3 cl, 9 dwg

FIELD: wig manufacture.

SUBSTANCE: automated apparatus for transplanting of hair has means for feeding of artificial hairs to base surface and needle adapted for reciprocation in direction perpendicular to surface of base for puncturing of stretched base and pulling of artificial hair from reverse surface of base. Apparatus has conveyor table designed for placement of base and positioned for moving in directions perpendicular to one another, and tension relieving means for relieving of base from its stretched state. Described in Specification is method for manufacture of wig.

EFFECT: increased efficiency and improved quality of wigs.

19 cl, 53 dwg

The invention relates to artificial hair restorer, the device for restoring hair and method of restoring hair

FIELD: wig manufacture.

SUBSTANCE: automated apparatus for transplanting of hair has means for feeding of artificial hairs to base surface and needle adapted for reciprocation in direction perpendicular to surface of base for puncturing of stretched base and pulling of artificial hair from reverse surface of base. Apparatus has conveyor table designed for placement of base and positioned for moving in directions perpendicular to one another, and tension relieving means for relieving of base from its stretched state. Described in Specification is method for manufacture of wig.

EFFECT: increased efficiency and improved quality of wigs.

19 cl, 53 dwg

FIELD: manufacture of partial or full wigs or hair prostheses for replacing lacking hairs in problematic head zones.

SUBSTANCE: hair prosthesis has forehead part made from flexible material of desired contour and strips having front and rear faces approaching each other in back region of the head for forming strips of restricting contour and strips defining contour. Prosthesis base is made from material having smooth sliding surface with successively applied impregnation layers of gluing substance, and consists of strips overlapping each other along arc of the circle and provided with margins. Said strips are made from glued material defining three-dimensional spherical shape of base with forehead part and part of back of the head and including strips of restricting contour, contour forming strips, and strip of back of the head. Front faces of strips are tightened over front surfaces of forehead part, for example, along share restricting thread of material. All overlapped portions of strips are secured to each other by, for example, stitches. Parts of strips in left and right temple regions of each strip are fixed by, for example, gluing-through in back region of the head of base. Hair prosthesis is adapted for constant wearing without necessity of removal said wig from head for night.

EFFECT: increased efficiency and simplified structure of hair prosthesis.

3 cl, 9 dwg

FIELD: medicine.

SUBSTANCE: hair transplantation method implies stretching of substrate made of elastic material, taking of middle part of hair piece by needles imposed to make reciprocal movement to form curve of the said middle part. The curve is left on one side of the substrate and than affixed to this side using the first binding layer. A couple of long sections of hair from the opposite curve ends are passed through the holes formed in the result of needling when they were elevated, to the other side of the substrate. After transplantation of given amount of hair sections, stretching of the substrate is stopped or released to ensure substrate shrinkage due to its elasticity and thus, reduction of holes' diameter. Then the second binding layer is applied on the entire first side of the substrate to affix it to skin integument of human body. There is a device to implement the said method and a product with transplanted hair.

EFFECT: development of efficient method of hair transplantation.

22 cl, 36 dwg

FIELD: household goods and personal effects.

SUBSTANCE: method of work piece production from natural hair to be used in wig items includes operations associated with mixing of different colour hair, treatment, ripping at card and sorting out by length. Hair of different length is mixed simultaneously with hair of different colour forming hair bundle of no more than 160 g weight. For disinfection purposes hair bundle is treated simultaneously with rippling at card by means of kerosene and hair oil mixture. Rippled hair is taken into bundle allocating short hair into centre and leaving long hair from the outside. Bundle is tied up in the middle part, and by means of at least one card it is pulled out to produce one-side balanced tail. Then tail is laid and small tails with no more than 55 g weight and length difference of no more than 5 cm are produced by contracting. After that tails are washed for complete closing of flakes and repeatedly disinfected. Tails are checked for inverted elements and inverted hair is removed. Work pieces with weight of no more than 30 g are formed. Starting from the heads, they are moisturised and fasten together at a distance of no more than 2.7 cm from the edge.

EFFECT: production of more qualitative wig items with smoothness and brilliance effect.

4 cl

Disposable wig // 2339283

FIELD: household goods and personal effects.

SUBSTANCE: disposable wig includes base made of very thin sheet, hair segments implanted into base and adhesive layer applied to the bottom side of base. Base thickness is microns order (μ). Adhesive layer is evenly applied to the whole bottom side of base and thick enough to ensure reasonable irregularity with projecting parts and other parts. Projecting parts contact with root parts of implanted hair segments projected from bottom side of base, and are lifted with regard to external side of base when wig is fixed to human skin. Adhesive layer thickness is to 20 times more than base thickness.

EFFECT: easy in use and imitation of natural hair.

2 cl, 4 dwg

FIELD: personal use articles.

SUBSTANCE: artificial hair has structure comprising core part and coating shell part. Core part is made of polyamide, and shell part is made of polyamide, having lower flexural stiffness compared to core part. The second object is provided, i.e. wig, which uses specified artificial hair.

EFFECT: invention provides for production of hair, which are similar to natural hair in its properties and appearance.

16 cl, 24 dwg

Wig // 2391031

FIELD: personal use articles.

SUBSTANCE: wig contains support, which is put on the head, hairs which are connected to the wigs support. Every single hair has two parts, obtained by bending of hair lock in two parts. The mentioned hair lock, before hair fastening, is curled and treated for improving of one of the next features: texture, smoothness and depth of dying. Both of mentioned parts are obtained by bending of hair lock in two parts in one position with providing of curling orientation in the same direction. Bended part of the mentioned hair parts is fastened to the wig support and it's end is directed backwards according to the wig support, so curls of both mentioned hair parts directed backwards after fastening to the wig support.

EFFECT: invention provides long-term retention of waving and obtained hair dressing style.

6 cl, 37 dwg

FIELD: personal use articles.

SUBSTANCE: invention relates to glue layer, to wig, where such layer is used, and also to methods of their production. Glue layer is made of polyurethane contact layer made by mixing of two fluids, the main reagent and hardener, besides the main reagent is high-molecular alcohol, and hardener contains polyisocyanate as the main component. At the same time one side of glue layer is glued to wig base by means of chemical reaction to inner side of wig base in process of reaction of gel-formation of glue solution applied on inner side of wig base, and serves for fixation of hair to stick root part of hair inserted with penetration on inner side of wig base. And other side is glued to head skin by means of pressing and performs function of possible further peeling from scalp.

EFFECT: wig containing base made of soft plastic, hair and single glue layer, is light, reliably stuck to scalp, has low prime cost, and may be used repeatedly due to possibility of further peeling of glue layer.

16 cl, 1 ex, 6 dwg

FIELD: personal use articles.

SUBSTANCE: wig comprises base and several strands of hair. Wig base has the first main element made of soft elastic artificial leather, and the second main element made of net and placed on rear side of the first main element. Hair is formed by a pair of hairs produced by folding of single hair strand or several hair strands and tied at fold to the second main element. On rear side of the second main element between this side and the first main element there is a hair assembly. A pair of hairs is held in condition, in which it is directed upwards due to pressing of inlet hole arranged in the first main element, through which both parts of specified pair of hairs, which are located at the side of their ends, are pulled at rear side onto surface side. There are three versions of wig making.

EFFECT: invention provides a natural appearance of wig.

8 cl, 16 dwg

FIELD: personal use articles.

SUBSTANCE: wig contains base and short and long hair attached to it, having various diametres of curl and being arranged in a certain area, where distribution of hair density is specified as short and long hair is attached to wig base. Short and long hair is controlled, being attached with specified density in a certain area, where short hair is controlled according to configuration of distribution, so that it makes 20-50% of total amount of hair attached to mentioned base of wig. Method of wig making is provided.

EFFECT: effect of voluminous hairdo with small amount of hair.

19 cl, 11 dwg

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