Method to manufacture textile cover and textile cover

FIELD: textile, paper.

SUBSTANCE: invention relates to the method to manufacture a textile cover (2) from a linen (3) of fibre containing: a rear surface (8B), the first area (5), the second area (7) and a front surface (8A), besides, the first area is the area of adhesion, in which fibres (4) of the linen (3) are integrated into a dense woven structure (5), retaining these fibres (4), and which is arranged only in part of the linen (3) thickness (6), and the second area (7) is arranged in the other part of the linen (3) thickness (6) up to the specified front surface (8A). The method is characterised by the fact that according to the method a) the AC electric field is applied to the linen (3), at least front or rear (8A, 8B) sides of which carries a thermomelting powdery binder (12), besides, this powdery binder (12) is introduced into the linen (3) from the fibre (4) so that the specified binder (12) is concentrated in the first area (5). Then c) the binder (12) is exposed to melting by heat supply; then d) the binder (12) is left until hardening or exposed to hardening.

EFFECT: simplified manufacturing of a textile cover without deterioration of cover mechanical properties.

18 cl, 4 ex, 4 dwg

 

Area technical use of the invention

The present invention concerns a method of manufacturing a textile coatings and textile coatings, which can be, in particular, floor covering, wall covering or carpet with bobbed hair for the passenger compartment of the vehicle.

The level of technology

A known method of manufacturing a textile coating of the needle-punched fiber fabric and, in particular, from the pile fiber fabric, representing a canvas made of needle-punched way so that a part of its thickness formed essentially from the United loops. The fiber in these loops start at the area behind the hinge, where the fibers are intertwined and, thus, partially connected.

In the manufacture of coating the wrong side of the pile fabric is impregnated with an aqueous solution of latex. Then all the product being dried, the purpose of which is to remove water from this solution, as long as the latex may be formed by cross connection, but this method has drawbacks, namely, that for its implementation requires large equipment, and that its implementation is costly.

During drying the latex formed bridges that connect the ox is the Korean people's army cloth with each other in the field, below the loops.

Latex is neuroplasticity substance and its presence in the textile coating adversely affects the recycling and reuse of the latter.

The use of a mixture of latex and includes other disadvantages in addition to what is required phase drying. In particular, it entails the contamination of a significant amount of water for cleaning which requires a special installation for water treatment, which entails substantial investment and maintenance costs.

Also known, for example, from German patent document DE 19737864 a method of manufacturing a textile coating by coating on the bottom side of the fiber fabric coating that can be applied in the molten state prior to curing by cooling. This coating can also be formed from a powder or hot melt film, which is not subjected to melting before applying on the lower side of the sheet. In both cases, the coating on the bottom side of the blade provides the ability to obtain satisfactory mechanical properties, in particular the dimensional stability and durability of the textile covering.

Description of the invention

At least one purpose of the invention is to simplify the method of manufacturing a textile coating is, not lead to the deterioration of certain mechanical properties mentioned textile cover.

According to the invention this goal is reached through the use of the method of manufacturing a textile covering of fibrous material, containing: rear surface, the first area, second area and the front surface, where the first region is a region of coupling, in which the fibers of the fabric are integrated into a dense mixed up the structure that holds these fibers, and which is only part of the thickness of the blade; the second takes place in another part of the sheet thickness than the front surface. According to the method

a) apply an alternating electric field to the canvas, at least the front or rear side of which bears the powdery hot-melt binder is a powder binder introduced into the fibrous fabric so that the aforementioned binder was concentrated in the first area; then

c) a binder is subjected to melting by heat; then

(d) a binder leaves for curing or force to cure.

Unexpectedly, it was found that under the influence of an alternating electric field powdery binder is concentrated in the area of the clutch. Earlier rather expected that under the influence of an alternating ELEH the electric field powdery binder is dispersed throughout the thickness of the textile coating to such an extent, that (as it is known, for example, from the document of the international patent application WO 99/22920) using similar alternating electric field can be effectively homogeneous distribute the powder throughout the fibrous layer.

Now it is desirable that the upper part of the coating, i.e. the second area would contain as little binder.

In the method described above does not apply to the formation of any solution, and drying is not required. It can be done using significantly smaller and less costly than the installation to perform the processes associated with the processing solution of latex.

In addition, the above-defined method has the advantage that it offered the opportunity of flexible adjustment of the amount of binding in the textile coating and the binder. This location can be changed by changing the surface on which put the powdered binder, and/or by regulating the proportion of this powdered binder, applied to one surface of the canvas, in comparison with the amount of powder of the binder, applied to the other surface of the canvas. The location of the binder inside the fabric also depends on the duration of finding the fabric between the electrodes of set pairs the TRS field, created through these electrodes, the specific characteristics of the powder and, in particular, from its granulometry, from the fineness of the fiber that makes up the fabric, and on the density of the said blade.

Mainly hot-melt binder more specifically is a thermoplastic binder. It may also be of a different nature. For example, hot-melt binder may be binding, melting at a first temperature and a thermosetting at a second temperature higher than the first temperature. For example, hot-melt binder may be polyethylene, polypropylene, polyester, epoxy resin or a mixture of the aforementioned substances.

The fiber from which the formed fabric mainly made of polymeric substances, for example from polypropylene, polyester, polyamide or mixtures of the mentioned substances. Fiber can also be a cellulose fiber. The fabric may also contain other types of mixed fibers.

Mainly between the application of the electric field and the melting of the binder, at least a portion of the powdered binder that may be present in the second field of the cloth is removed, exposing the front surface of this blade cleaning operations.

Mainly between the application of the electric field and the melting of the binder of the powder is brasego binder is removed, exposing the rear surface of the blade cleaning operations, such as cleaning by removing or cleaning brush.

Mostly the powdered binder is a mixture of powders of different chemical compositions.

Mainly the method includes a step in which the rear surface is covered with a coating containing fillers.

An additional objective of the invention is to provide a textile coatings containing fabric made of fibers, and comprising: a rear surface, the first area, second area and the front surface; where the first region is a region of coupling, in which the fibers of the fabric are integrated into a dense mixed structure, which held these fibers and which is only part of the thickness of the canvas, while the second region is located in another part of the sheet thickness, the above-mentioned first area than the front surface; the hot-melt binder bind the fibers of the fabric with each other, and it is concentrated in the first area, which contains the core, and surface area, whereby said core is connected with the rear surface of the canvas; the share of hot-melt binder in relation to the proportion of the fiber is lower in the surface region than in the core.

The authors believe that to create a method, defined the CSOs above, according to the invention, it was not known how to obtain a smaller share of the hot-melt binder in the surface region of the first region relative to the proportion of the binder in the core of the first mentioned area or, at least, as can be obtained in such a way that it was simple and quite cost-effective, so it is not seen as impractical.

As the share of hot-melt binder relative to the fiber is smaller in surface area than in the core, you can use a smaller amount of the binder without a significant reduction in the stiffness of textile floor coverings having the advantage of being achieved in the result of the cost reduction. In addition, the underlayer, for example the coating may be covered with the lower surface of the canvas. It is easier to force it to stick to the rear surface of the canvas, if the back surface contains a small amount of binder. In the absence of substrate rear surface of the fabric also makes the rear surface of the cover.

The advantage of hot-melt binder is that it can be melted again by the subsequent heating of the textile coating, after which this coating can be given a definite shape by compression between two forming blocks.

Blahop Etna, that through the implementation defined above method, it is possible to obtain textile coating.

Brief description of drawings

The invention may be fully understood after reading the following description, given merely as an example, with reference to the accompanying drawings, which include:

Fig. 1, which presents a schematic view of an installation for the manufacture of carpets according to the invention, which uses the method according to the invention;

Fig. 2, which shows schematically a partially cross-section of the needle-punched fabric, from which the system shown in Fig. 1, izgotovlivajut carpets;

in Fig. 3 presents a view similar to those shown in Fig. 2, and shows an intermediate stage in which the fibrous fabric shown in Fig. 2, can be detected during its conversion into the carpet on the installation shown in Fig. 1;

in Fig. 4 shows a view similar to those shown in Fig. 2 and 3, and shows the structure of the Mat according to the invention, made with the setup shown in Fig. 1, needle-punched fabric, shown in Fig. 2.

A possible variant embodiment of the invention

In Fig. 1 shows an installation 1 for the manufacture of textile coverings or carpets, 2 of NAP needle-punched fabric 3 is the use of the method according to the invention.

As shown in Fig. 2, leaf 3 in the initial state is dry, i.e. not saturated. It is made of polymer fibers 4, which are intertwined and, therefore, are tightly entangled structure 5 located only part of the thickness 6 of the blade 3. Through mixed patterns 5 hold the fiber 4, and this structure is located under a different part 7-mentioned thickness 6. Fiber 4, in General, independent from each other in the above-mentioned other part 7, where they formed a loop 9, passing to one of the two main surfaces 8A and 8B of the blade 3, i.e. to the surface 8A, intended to make the top, or the front surface of the Mat 2, and the surface 8B intended to be the bottom, or rear surface.

In this example, the canvas 3 contains loops 9 on its surface 8A, as the canvas is a pile needle-punched fabric. However, the fabric 3 may be a conventional needle punched cloth, i.e. it may not be a pile.

On the input set 1 roll 10 canvas 3 unwound and fed to the impregnating device 11 in the direction indicated by the arrow F in Fig. 1. Upstream from this impregnating device 11 substance consisting substantially of the powdery hot-melt binder 12, which may also contain one or more Chi is lo additives, in particular additives that promote melting, destroy one of the main surfaces 8A and 8B of the blade 3. This binder 12 is made of hot-melt material, the melting point of which is below the melting temperature of the fiber 4. The binder consumption is metered with a scattering device 13, synchronized with the feeding speed of the blade 3 in the direction F.

Impregnating device 11 includes two opposite electrodes 14 and 15, having, in General, a flat shape and arranged parallel to each other, between which hold the canvas 3 carrying powdered binder 12. Between these electrodes 14 and 15 generate an alternating electric field imposed at the same time on the cloth 3 and the powder-binder 12.

Affecting this field, force powdery binder 12 to penetrate into the thickness of the blade 3, including its mixed structure 5. It was also unexpectedly found that by using an alternating electric field created between the electrodes 14 and 15, can be concentrated powdered binder 12 in the above-mentioned mixed structure 5 so that, in part 7 of the blade 3 fiber 4 which is substantially free of powdery binder 12 that is desired.

Similarly, it is preferable that the electrodes were flat and were parallel to the Rog other. However, in some cases it may be preferable to use electrodes having a different shape and/or are not parallel to each other. These electrodes can be, in particular, such as those described in document WO 2005/038123.

Output impregnating device 11 by means of extractor 16 surface 8A is subjected to extraction, i.e. cleaning operations intended to remove any grains of the binder 12, located in part 7 of the blade 3. This operation aspiration can be eliminated by replacing it with the cleaning brush. Sheet structure 3 directly after extraction unit 16 shown in Fig. 3, which shows that the powdered binder 12 are concentrated mainly in the mixed structure 5.

Downstream from the extractor 16 is a heat chamber 17 with the supply of hot air, which due to the heat compels binder 12 to melt. Then the blade 3 is carried out between two pressure rollers 20.

Immediately after crossing the blade 3 between the pressure rollers 20 it is subjected to cooling air jet 21 emitted from one or multiple nozzles 22, influencing which compels binder 12 to curing. The shaft 20 may also be cooled, and through them it is possible to promote curing of the binder 12. Through them can even cause the above-mentioned curing b the C the use of the jet 21 of the cooling air. You can also provide a self-cooling of the binder 12.

After curing of the binder 12 cloth 3 is a textile cover, which in the example shown is cut by the knife 23 to a few carpets 2.

The structure of the Mat 2 is shown in Fig. 4, which shows that only very few or no binder 12 in petesch 9. Bridges spanning 12 connected fiber 4 with each other in a confused structure 5, and through this petali 9 is attached to the rest of the Mat 2. Mass fraction of binder 12 relative to the proportion of the fiber 4 is changed in the thickness direction, confused structure 5. More specifically, this proportion is greater in the core 25 mixed patterns 5 than in the surface region 26 adjacent to the said core 25 from the opposite side of the part 7, and this surface defines the bottom surface 8B of the Mat 2.

A small proportion of the binder 12 in the surface region 26 can be detected visually on the bottom surface 8B. This can be also confirmed by the measurements. These measurements can be based on a comparison of thermal analysis of the enthalpy of fusion of the fibers 4 separately and the enthalpy of melting of the sample being evaluated for melting only fibers 4 present in the sample, excluding its junction 12. From this comparison, determine the mass the stake fiber 4 in the sample and thereby determine the proportion of the binder 12. The sample is prepared by grinding carried out in such a way as to leave only what you want to measure, and the rest removed. For example, the sample is prepared for measuring the amount of binder 12 in the surface region 26, resulting from the removal by milling part 7 and the core 25.

Hot-melt binder 12 may be selected such that is compatible with the fiber of the carpet so that the carpet 2 can be disposed.

In the following section offers several examples of the Mat 2, manufactured by using the method described above.

Example 1

In this example, the canvas 3 was a pile of needle-punched material with a surface density of 600 g/m2and a thickness of approximately 6 mm, It consisted of a mixture of fibers 4 with a linear density of 6.5 dtex, 17 dtex and 150 dtex made of polypropylene, and initially it did not contain a binder.

Binder 12, consisting of high density polyethylene, dissipated with a flow rate of 90 g/m2on the canvas 3. Prior to the implementation of this leaf binder was in the form of a powder with a grain size from 0 μm to 80 μm, and was purchased from a company ABIFOR (Wutoschingen, Germany) under product index 1300/20.

Introduction powdery binder 12 to the sheet 3 was performed on the device 11 equipped with flat electrodes 14 and 5. An alternating electric field created between the electrodes 14 and 15, had a value of 2 kV/mm and a frequency of 50 Hz. Canvas 3 containing powdered binder 12, was subjected to an alternating electric field, nakladyvalsya on it for 20 sec. Then it was placed for more than 2 min in a heat chamber 17, which maintained the temperature higher than the melting point of the binder, but below the melting temperature of the fiber.

Carpet 2 obtained according to this example 1, was subjected to tests according to the test conditions of Lissone (Lisson test)defined in standard EN 1963 (1997). After this test produced a visual assessment of the level of defibrotide carpet 2 and estimated its value 3/5 in the longitudinal direction, i.e. in the direction indicated by the arrow F in Fig. 1, and the value of 3/5 in the transverse direction, i.e. in the direction perpendicular to the longitudinal direction.

After the test of Lesson was defined as the mass loss of the Mat 2 and the received value of 58.7 g/m2in the longitudinal direction and magnitude of 60.1 g/m2in the transverse direction.

Carpet 2 had an average thickness of 6 mm, the Proportion of the binder 12 throughout its thickness was evaluated by the above method and using measurements of the enthalpy of fusion as a component of 29.5 wt.%. The proportion of binder in the last 12 mm to the surface 8B, i.e. nanoclay side of the Mat 2, in General, the surface area of 26, was estimated using the same method as a component of 16.9 wt.%. From this one can deduce that the proportion of binder 12 in the surface region 26 was less than in the core 25. These figures should be compared with similar tests of the second Mat, made of the same fabric, but using the prototype method, i.e. using a solution of latex.

The percentage of latex in the entire thickness of the second carpet was evaluated by the above method and using measurements of the enthalpy of fusion as a component of 26.7 wt.%. The percentage of latex in the last millimeter of the second carpet to its lower surface, i.e. on the wrong side of this second carpet was estimated using the same method as a component of 35.0 wt.%.

Example 2

This example used the same cloth 3 and the same binder 12, as in the Example 1.

This binder 12 dissipated with a flow rate of 120 g/m2on the canvas 3.

Introduction powdery binder 12 to the sheet 3 was performed on the device 11 equipped with flat electrodes 14 and 15. An alternating electric field created between the electrodes 14 and 15, had a value of 2 kV/mm and a frequency of 50 Hz. Canvas 3 containing powdered binder 12, was subjected to an alternating electric field, nakladyvat is eghosa at him, for 20 sec. Then it was placed for more than 2 min in a heat chamber 17, which maintained the temperature higher than the melting point of the binder, but below the melting temperature of the fiber.

Carpet 2 obtained according to this example 3 were subjected to tests according to the test conditions of Lissone (Lisson test)defined in standard EN 1963 (1997). After this test produced a visual assessment of the level of defibrotide carpet 2 and estimated its size 4/5 in the longitudinal direction and magnitude of 3/5 in the transverse direction.

After the test of Lesson was defined as the mass loss of the Mat 2 and the received value to 36.8 g/m2in the longitudinal direction and magnitude of 54.3 g/m2in the transverse direction.

Example 3

In this example, the canvas 3 was a pile of needle-punched material with a surface density of 550 g/m2. Fiber 4, which was part of the fabric, initially not containing any binder was made from polyester and had a linear density of 6.7 dtex.

As a binder 12 used epoxy resin, which dissipated with a flow rate of 150 g/m2on the canvas 3. Prior to the implementation of this leaf binder was in the form of a powder with a grain size from 0 μm to 100 μm, and was purchased from a company BAKELITE (Germany) under product index 6171TP.

Introduction powdery link to the existing 12 to the sheet 3 was performed on the device 11, equipped with flat electrodes 14 and 15. An alternating electric field created between the electrodes 14 and 15, had a value of 3 kV/mm and a frequency of 50 Hz. Canvas 3 containing powdered binder 12, was subjected to an alternating electric field, nakladyvalsya on it for 20 sec. Then it was placed for more than 2 min in a heat chamber 17, which maintained the temperature higher than the melting point of the binder, but below the melting temperature of the fiber.

Carpet 2 obtained according to this example 2 were subjected to tests according to the test conditions of Taber (Taber test). After this test produced a visual assessment of the durability of the Mat 2 and got a size 3/4.

Example 4

This example used the same fabric 3, as in example 3.

Binder 12 dissipated with a flow rate of 140 g/m2on the canvas 3. Prior to the implementation of this leaf binder was in the form of a mixture containing 20 wt.% powder, which was purchased from BAKELITE company (Germany) under product index 6171TP, and 80 wt.% polypropylene powder with a melt flow index (MFR) (MFI), is equal to 120, and granule size from 0 μm to 200 μm. Powder "6171TP had a grain size from 0 μm to 100 μm.

Introduction powdery binder 12 to the sheet 3 was performed on the device 11 equipped with a flat electr who DAMI 14 and 15. An alternating electric field created between the electrodes 14 and 15, had a value of 3 kV/mm and a frequency of 50 Hz. Canvas 3 containing powdered binder 12, was subjected to an alternating electric field, nakladyvalsya on it for 20 sec. Then it was placed for more than 2 min in a heat chamber 17, which maintained the temperature higher than the melting point of the binder, but below the melting temperature of the fiber.

1. A method of manufacturing a textile coating (2) of the blade (3) of the fiber, comprising: a rear surface (8B), the first region (5), the second region (7) and front surface (8A), and the first region is a region of coupling, in which the fiber (4) blade (3) is integrated in a dense mixed up structure (5), retaining these fibers (4), and which is only part of the thickness (6) of the blade (3)and the second region (7) is located in another part of the thickness (6) canvas (3) until the mentioned front surface (8A), wherein according to the method
a) apply an alternating electric field to the canvas (3), at least the front or the back (8A, 8B) of the parties which shall be powdery hot-melt binder (12), and this powder binder (12) embedded in the canvas (3) of the fibers (4) in such a way that the aforementioned binder (12) was scancenter the Vano in the first region (5); then
c) binder (12) is subjected to melt by heat; then
(d) binder (12) leave to cure or subjected to curing.

2. The method according to claim 1, characterized in that the fabric is needle punched cloth (3).

3. The method according to claim 1 or 2, characterized in that between the application of the electric field and the melting of the binder, at least part of the powder binder (12), which may be present in the second region (7) of the blade (3)is removed, exposing the front surface (8A) of the blade (3) cleaning operations.

4. The method according to claim 3, characterized in that between the application of the electric field and the melting of the binder portion of the powdered binder is removed, exposing the back surface (8B) of the blade (3) cleaning operations.

5. The method according to claim 3, characterized in that the powdery binder (12) is a mixture of powders of different chemical compositions.

6. The method according to claim 3, characterized in that the back surface is covered with a coating containing fillers.

7. The method according to claim 3, characterized in that during the application of the electric field powdery binder (12) concentrate so that the proportion of this binder (12) relative to the proportion of the fiber (4) was smaller in surface area (26) of the first region (5)than in the core (25)that the first region (5) contains and which is th surface area (26) communicates with the rear surface (8B) of the blade (3).

8. The method according to claim 1 or 2, characterized in that between the application of the electric field and the melting of the binder portion of the powdered binder is removed, exposing the back surface (8B) of the blade (3) cleaning operations.

9. The method according to claim 8, characterized in that the powdery binder (12) is a mixture of powders of different chemical compositions.

10. The method of claim 8, wherein the rear surface is covered with a coating containing fillers.

11. The method according to claim 8, characterized in that during the application of the electric field powdery binder (12) concentrate so that the proportion of this binder (12) relative to the proportion of the fiber (4) was smaller in surface area (26) of the first region (5)than in the core (25)that the first region (5) and which contains the surface area (26) communicates with the rear surface (8B) of the blade (3).

12. The method according to any one of claims 1, 2 or 4, characterized in that the powdery binder (12) is a mixture of powders of different chemical compositions.

13. The method according to item 12, wherein the rear surface is covered with a coating containing fillers.

14. The method according to item 12, characterized in that during the application of the electric field powdery binder (12) concentrate so that the proportion of this binder (12) with respect to d is whether fiber (4) was smaller in surface area (26) of the first region (5), than in the core (25)that the first region (5) and which contains the surface area (26) communicates with the rear surface (8B) of the blade (3).

15. The method according to any one of claims 1, 2, 4, 5 or 9, characterized in that the back surface is covered with a coating containing fillers.

16. The method according to item 15, wherein upon application of the electric field powdery binder (12) concentrate so that the proportion of this binder (12) relative to the proportion of the fiber (4) was smaller in surface area (26) of the first region (5)than in the core (25)that the first region (5) and which contains the surface area (26) communicates with the rear surface (8B) of the blade (3).

17. The method according to any one of claims 1 to, 2, 4, 5, 6, 9, 10 or 13, characterized in that during the application of the electric field powdery binder (12) concentrate so that the proportion of this binder (12) relative to the proportion of the fiber (4) was smaller in surface area (26) of the first region (5)than in the core (25)that the first region (5) and which contains the surface area (26) communicates with the rear surface (8B) of the blade (3).

18. Textile coating, resulting from the use of the method according to any one of claims 1 to 17 and contains the canvas (3)made of fibers (4) and containing the back surface (8B), the first region (5), the second region (7) and PE is enyu surface (8A), the first area is the area of the clutch, in which the fiber (4) blade (3) is integrated in a dense mixed up structure (5), retaining these fibers (4), and which is only part of the thickness (6) of the blade (3)and the second region (7), is located in another part of the thickness (6) of the blade (3), above mentioned first region (5), until the mentioned front surface (8A), while using a hot-melt binder (12) fiber (4) cloth bound with each other and binder is concentrated in the first region (5), containing the core (25) and surface area (26), through which the core is connected with the rear surface (8B) of the blade (3), and the share of hot-melt binder (12) relative to the proportion of the fiber (4) is smaller in surface area (26)than in the core (25).



 

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14 cl, 2 dwg

FIELD: textile, paper.

SUBSTANCE: invention relates to floor coverings with resilient vinyl lining layer. The covering has a carrier made of nonwoven fabric manufactured from various polymers that are present in a monofilament. The carrier has preferably bicomponent monofilaments of a shell-rod type and is thermal bonded.

EFFECT: invention ensures uniformity of the surface and improves stability of the structure with cost efficient production of the covering.

6 cl

FIELD: construction.

SUBSTANCE: invention pertains to making decorative facing materials for wall and overhead coating, mainly for interior decoration. The material contains, in its base cellulose, carboxymethyl cellulose and textile fibres in form of viscose or polyester preoriented yarn with linear density of 18-36 tex, surface active substance with the following ratios of components in mass.%: carboxymethyl cellulose - 15-25, viscose or polyester preoriented yarn - 5-80, cellulose - 5-80, surface active substance - 2-8. The method of making the material involves grinding cellulose sheet to a fluffy state, preparation of a mixture of the fluffy cellulose sheet, lengths of viscose or polyester preoriented yarn and carboxymethyl cellulose, fluffing up viscose or polyester preoriented yarn or twisting them into bunches with subsequent mixing.

EFFECT: decorative ecologically clean coating is very durable, has good adhesion to the coated surface, hygroscopicity, thermal and sound insulation properties, simplification of the process of making it and application.

6 cl, 4 ex

FIELD: textiles, paper.

SUBSTANCE: hermetic elastic material includes a textile basis of synthetic fibers and a polyurethane coating applied on it from the front and back side, made of a solution of polyurethane polymer and a polyisocyanate in an organic solvent, and as a textile basis it contains fabric with a fabric weight of 70-80 g/m2 made of synthetic high-modulus fibers of linear density of 14.3 or 29.3 tex with a twist of 100 ± 10 tw/m, having a tensile load of not less than 1200 N and elongation at break of not more than 8%; additionally the coating comprises a filler and antipyrene, and the weight ratio of the weight gain of the polymer coating on the front and back sides are respectively 1:(2-3).

EFFECT: creation of hermetic elastic material having a high tensile load, reduced flammability, reduced hydrogen permeability while maintaining elasticity on the prototype level.

2 cl

FIELD: textile industry.

SUBSTANCE: fabric is of polyester or polyetheretherketone type. The fabric coating is produced by way of cross-linking anionic aliphatic dispersion with OH-number < 0.5 with hydrophilous aliphatic polyisocyanate, preferably, based on hexamethylenediisocyanate with NCO value 17-18. The fabric may be woven of already coated fibres or filament yarns. The coating is applied on the fabric by way of its contacting with a gluing compound containing a gluing substance activated to perform cross-linking when heated. Then the fabric is ironed at a temperature of 95-100°C. The fabric is pitched on structures at a surface temperature, with the seams and laps not heated over 100°C. The invention excludes the necessity of further application of coating on the fabric after application the coating which ensures application of a significantly less weight in the process of coating.

EFFECT: one eliminates application of any organic solvents in the gluing compounds providing for tension of oil varnishes, liquifiers, fillers or coloured oil varnishes and offers an environmentally safe method for application of coating on an aircraft.

9 cl, 3 ex

Microspheres // 2432989

FIELD: technological processes.

SUBSTANCE: invention relates to thermoplastic thermally expanding microspheres and their application. Microspheres contain a polymer shell made of monomers with ethylene unsaturation that encapsulates a propellant. Monomers with ethylene unsaturation contain from 20 to 80 wt % of acrylonitrile, from 20 to 80 wt % of monomers selected from the group that consists of acrylic acid ethers, from 0 to 10 wt % of methacrylonitrile, from 0 to 40 wt % of monomers selected from the group that consists of methacrylic acid ethers. The total quantity of acrylonitrile and acrylic acid ethers makes from 50 to 100 wt % as monomers with ethylene unsaturation. The propellant contains at least one representative selected from the group of methane, ethane, propane, isobutane, n-butane and isopentane.

EFFECT: microspheres have high ability of foaming, low Tstart without high quantities of halogen-containing monomers, resistance to chemicals and high transparency.

22 cl, 8 tbl, 28 ex

Microspheres // 2432202

FIELD: process engineering.

SUBSTANCE: invention relates to thermally expanding thermoplastic microspheres and their application. Said microspheres comprise polymer shell made from ethylenically unsaturated monomers that encapsulate propellent. Ethylenically unsaturated monomers comprise up to 20-80 wt % of acrylonitrile and 1-70 wt % of poly(vinyl alcohol) with single carbon-carbon olefinic linkage. Total amount of acrylonitrile and poly(vinyl alcohol) makes up to 100 wt % of ethylenically unsaturated monomers.

EFFECT: higher expansivity and chemical resistance, absence of halogen-containing monomers.

23 cl, 5 tbl, 45 ex

Micro spheres // 2432201

FIELD: process engineering.

SUBSTANCE: invention relates to thermally expanding thermoplastic microspheres and their application. Said microspheres comprise polymer shell made from ethylenically unsaturated monomers that encapsulate propellent. Ethylenically unsaturated monomers comprise up to 40-70 wt % of acrylonitrile and 5-40 wt % methylacrylonitrile, and 10-50 wt % of monomers selected from the group including acrylates, methacrylic esters and mixes thereof. Said propellent comprises at least one agent selected from the group including methane, ethane, propane, isobutene, n-butane and neopentane.

EFFECT: higher foaming capacity, expansivity and chemical resistance, absence of halogen-containing monomers.

21 cl, 6 tbl, 25 ex

FIELD: personal use articles.

SUBSTANCE: invention relates to light industry and may be used to manufacture inner parts of shoes and prosthetic-orthopaedic items on the basis of non-woven needle-punching synthetic fibres and tanning wastes. Composite material for inner parts of shoes and prosthetic-orthopaedic items with thickness of 1.9-2.2 mm includes three layers impregnated with skin glue. At the same time outer layers of material represent needle-punching cloths made of mixture of synthetic bicomponent and polyester fibres. Inner layer consists of ground tanning chips with fibre size of 0.5-1.8 mm. Material has the following composition, wt % : synthetic fibres 61- 65; tanning chips 25-27; skin glue 10 -12. Produced material may be shaped as resistant in operation. Required hygienic properties are maintained both by presence of protein fibrous components - tanning chips and by using highly porous non-woven cloth made of synthetic fibres as the base. Composition of synthetic fibres producing cloth is selected so that as a result of their coupling and subsequent heat moulding, fibrous-porous structure of material is preserved.

EFFECT: new material, providing for required hygienic and strength properties, is suitable to make inner soles and various prosthetic-orthopaedic items.

1 tbl, 2 ex

FIELD: process engineering.

SUBSTANCE: invention relates to method of producing gas-permeable imitation multilayer leather, and imitation leather produced thereof. Said leather is made up of the layer of flat textile warp with, at least one foamed polyurethane-based intermediate layer applied there on that feature, at least, partially exposed porous structure, and face polyurethane-based layer applied on, at least, one intermediate layer. First stage of proposed method comprises applying face layer on peel-apart web. Then, at least one intermediate layer is applied onto face layer. Now, web layer is applied on, at least, one intermediate layer and web is separated from face layer. Note here that, to produce face layer, aqueous aliphatic polyurethane dispersion in liquid phase is applied onto web, and, immediately after applying said dispersion, water contained therein is evaporated by supplying heat thereto for 5 min, max., to facilitate drying of polyurethane dispersion on web without film formation and forming of face layer with micro pores.

EFFECT: small-sized pores, goo gas permeability.

39 cl, 4 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to method of producing gas-permeable imitation multilayer leather, and imitation leather produced thereof. Said leather is made up of the layer of flat textile warp with, at least one foamed polyurethane-based intermediate layer applied there on that feature, at least, partially exposed porous structure, and face polyurethane-based layer applied on, at least, one intermediate layer. First stage of proposed method comprises applying face layer on peel-apart web. Then, at least one intermediate layer is applied onto face layer. Now, web layer is applied on, at least, one intermediate layer and web is separated from face layer. Note here that, to produce face layer, aqueous aliphatic polyurethane dispersion in liquid phase is applied onto web, and, immediately after applying said dispersion, water contained therein is evaporated by supplying heat thereto for 5 min, max., to facilitate drying of polyurethane dispersion on web without film formation and forming of face layer with micro pores.

EFFECT: small-sized pores, goo gas permeability.

39 cl, 4 dwg

FIELD: construction industry.

SUBSTANCE: manufacturing method of floor covering involves preparation of glass-fibre mat roll, application of primer and front coatings, printing of patterns and application of transparent coating, application of PVC flakes, application of the second transparent coating, application of rear PVC coating, mechanical stamping of face coating and application of UV protection lacquer.

EFFECT: optimum speed choice of cloth supplied in automated line for manufacturing floor covering, choice of the most implemented patterns, chromaticity, shades of pictures, obtaining the appropriate cloth flexibility and consumer density of new material.

FIELD: process engineering.

SUBSTANCE: invention relates to floor coating shaping and can be used in production processes. Proposed method in consisting in using available production facilities cooling to technologically expedient temperatures in applying a number of techniques, as well as in creating conditions for solidification of coating surface layer, turning over the coating through 180° on using coat paint and lacquer layers, the coat being moved at 25 m/min rate.

EFFECT: expanded performances.

FIELD: chemistry.

SUBSTANCE: invention relates to the technology of producing anti-contamination composite materials. The material contains a polymer fibre substrate on whose surface there is a layer of fine inorganic particles and a binding component formed via chemical bonding. Each of said fine inorganic particles is coated with a silane monomer with unsaturated bonds. Content of said binding component ranges from 0.1 wt % to 40 wt % of the amount of fine inorganic particles. The material can be in form of a fabric, filter, mosquito net, construction material and material for inside rooms.

EFFECT: material is dustproof and highly durable.

13 cl, 10 dwg, 7 tbl, 15 ex

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