Cellulose fibre cloth hydroentangling process, related device and cloth produced in that manner

FIELD: engineering procedures.

SUBSTANCE: one version of the method consists that the cloth is placed on porous substrate movable on the straight or rotating about the axis. At least one side of the cloth is processed with some water jets rowed perpendicularly to cloth moving direction. Herewith a row is formed with one-section jets and at least other section jets different from the first one.

EFFECT: improved surface properties of the product.

33 cl, 17 dwg

 

The invention relates to a method of hydraulic tangling canvas fibers, in particular concerns a method for obtaining a specific structure of the surface of the canvas of cellulose fibers, mainly from absorbent cotton, as well as from a mixture of artificial and synthetic fibres. The invention relates also to the canvas, the resulting hydraulic tangling.

In one known way of Hydrobotany canvas from fibers treated with jets of water under high pressure for full or partial tangling of fibers and change some of their characteristics. The purpose of this method is, in particular, the change in mechanical strength and rolling. The canvas of the fibers lying on a porous substrate, which is moved in a direction perpendicular relative to the rows of water jets generated by the device with one or more injectors arranged perpendicular to the direction of movement of the canvas fibers. Typically, each injector contains a high-pressure chamber in the form of a channel, which on the one hand connected with the plate, which made the calibrated holes of circular shape having the same diameter and the corresponding profile. This plate is designated by the term "strip" strip, which will be used later in the text.

The water in the channel pod is t using pumps, creating high pressure from a few bar to 300 bar.

Usually the holes have a diameter of from 80 to 200 microns and evenly distributed over the plate.

The distance between the holes is from 0.2 to 10 mm

On sale there are plates with 1...3 rows of holes. If the plate is more than 1 row of holes, they are staggered.

Porous substrate, on which lay a canvas of fibers moves on a flat table or a rotating drum. Water through a porous substrate penetrates into the canvas of the fibers, and its removal is carried out by means of the suction device positioned under the porous substrate.

When using the canvas of a certain weight or a certain thickness, the proposed device provides immediate and visible results, expressed in the formation of a relief from continuous and generally straight and mutually parallel lines that are at a certain distance from each other on the surface of the canvas.

Lines are especially visible at sufficient pressure and if the distance between the jets is not less than 1 mm, These lines are oriented in the direction of movement of the canvas.

These lines are actually grooves formed on the surface of the canvas, and their depth, the distance between them and width depend mainly on the location of the water jets from the pressure of the water supplied to the ing story, the diameter and profile of the holes, and the speed of movement of the canvas relative to the jets.

In the manufacture of products for applying or removing make-up is used mainly canvas of cellulose fibers, in particular fibers of absorbent cotton, but it can be used mixed with other fibres, artificial and synthetic.

In the patent EP 1106723, issued in the name of the applicant, describes a tampon cut from canvas absorbent cotton weight 150 g/m2where is the groove depth of not less than 0.25 mm, and the distance between them from 1 to 8 mm

In addition, this canvas has a certain resistance to stretching. On the other side of the canvas also has grooves, but different depths and with different distance between them. This canvas is obtained, for example, using the method of Hydrobotany when the canvas is passed under the water jets, the distance between them and the water pressure is dependent on the terrain that you want to retrieve.

According to one variant of the method described in the patent application EP 010121057 (1167605), in the device for hydraulic tangling provided by the group of jets spaced from each other at a distance of from 0.4 to 1.2 mm, and a group of jets spaced from each other at a distance of from 1.2 to 4 mm, which allows to obtain different terrain on two side of the canvas and to avoid the problem of rolling due to the significant distances between the grooves. The result is a product whose two sides have different terrain, but retains the characteristics of mechanical resistance: resistance to pilling, resistance to delamination and softness. On one side the surface is rougher and has a great cleansing effect.

The aim of the present invention is to create and offer the consumer a superior product.

In particular, the primary goal is to develop tools Hydrobotany, which allows to obtain products with improved surface characteristics, in particular relief, compared to currently known.

The most common at present technique aimed at obtaining products with surfaces containing grooves equidistant from each other, or with a step change in a certain way, you get exactly the same grooves, although one side is different from the other.

To meet the needs of consumers who use products for makeup application and removal, the applicant identified the second objective of obtaining products of a sufficiently large thickness and with this relief, which makes it possible to apply on the skin the required amount of lotion or a lotion makeup remover and simultaneously strengthen their cleansing action when wiping the skin, the e causing her irritation. In particular, the aim of the applicant is to obtain in the process of hydraulic tangle of thick articles of fiber, which keeps the volume (the ability to swell), a good degree of strength regardless of the direction of movement of the product, good absorption capacity.

These goals are achieved by way of the hydraulic tangling canvas fibers, which is that the canvas is placed on a porous substrate, which moves in a straight line or rotates on its axis, is subjected to canvas the processing of jets which are arranged at least in two rows perpendicular to the direction of movement of the canvas in which these rows are formed by the jets with one section and at least the jets with another section other than the first, and at least one row formed by the jets, the distance between them is not constant.

While there is a method of production has made it possible to obtain a product a little different from the standard, the applicant was surprised that it is possible to significantly increase the variety of products due to the cross-section of water jets in a series of perforations. In particular, the hydraulic diameter is not constant. Under the hydraulic diameter should be understood, the diameter of a circle whose area is equal to the considered square is square in cross-section. For example, if the cross section has the shape of an oval or polygon, the hydraulic diameter is the diameter of a circle having the same area.

The canvas is treated mainly jets arranged in at least two rows parallel to each other. It is preferable to use not more than four rows.

The method is of particular interest when the jets creates a single injector. This provides a good synchronization steps consistent series that allows you to manage the creation of patterns on the canvas and, respectively, in end products.

Such a system allows a large number of combinations. According to one interesting solutions using at least two rows of jets jet one row to form a group, separated from each other at a distance, and streams of the next row are arranged in the direction of movement of the blade as the jet of the first row.

Another method according to the invention is that the jet of one row to form a group, separated from each other at a distance, and streams of the next row are partially in the direction of movement of the canvas as well as the jet of the first row.

In an advantageous implementation of the invention, the first series consists of streams of one section and the next row consists of the jets of the other section./p>

In one advantageous method of implementing the invention, the first row consists of streams of the first and second sections, and the following series consists of streams of the second section or jets of the second and third section.

The method is applicable to one side of the canvas. It can be also applied to both sides. The patterns on both sides may be the same or different.

In an advantageous implementation of the invention the fibers are mainly cellulose, namely cotton. For example, the canvas can contain from 70 to 100% cotton by weight and from 0 to 30% of artificial and synthetic fibres. The weight of the canvas can reach 400 g/m2preferred specific weight more than 150 g/m2. After processing the clutter from canvas make the pads are round, oval, square, rectangular or any other shape for cosmetic or other known use.

The invention concerns also a device for implementing the method, in which jets out of the perforations or holes formed in the plate "strip" strip running parallel to the canal water distribution. This device differs in that the perforations are located along the length of one plate strip and have a different cross-section.

In an advantageous implementation of the invention, the plate strip contains two rows of perforations. According to one in which the ways of implementation of the invention, the perforations of one row have the same cross-section, other than the cross-section of the perforations of the second row.

The invention also concerns the canvas of the fibers subjected to hydraulic tangling with water jets, of which at least one side contains grooves formed in the feedback above water jets. Canvas differs in that the depth of the first grooves is from 50 to 600 μm, the distance between the first and the next groove is from 0.2 to 5 mm, and at least a second groove has a depth of from 200 to 1000 μm, the distance between the second and the next groove is from 2 to 9 mm, and the depth and distance of the second grooves exceeds the depth and length of the first grooves.

The depth of the grooves on one side determine, based on the cross-section perpendicular to the direction of the grooves. Each groove has two side surfaces, right and left. Each of the side surface is enclosed between the base (bottom) of the groove and the first vertex, starting from the base. The depth of the groove is the difference in level between the top and base (bottom) of the same groove.

In practice, the depth of the grooves average or lesser depth is defined as the average of the two values resulting from measurements with one and the other side of the vertex between two adjacent grooves.

If the groove is deep, and carry out measurements on each side which are vertices and consider the greater of the two values obtained.

It should be noted that, regardless of the depth of the groove, the measurements carried out relative to the adjacent vertices, and do not take into account more distant peaks, even if they have a great height.

The step is determined by the distance between the bases of two adjacent grooves. Typically, the substrate has a V-shape.

Known patent application EP 1310226. It deals with pads of cotton wool for cosmetic use, which on both sides is thin parallel groove depth of 0.1...0.2 mm and located at a distance of 0,5...0,7 mm from each other. Grooves formed in the process of waterjet processing and at least one of the parties is also a wide groove depth of approximately 0.3...0.8 mm and spaced approximately 9,0...15.0 mm from each other. It should be noted that the product obtained by passing the canvas fibers first, under the injector forming fine grooves, and then under the second injector, forming a wide and deep grooves. This implies that the wide grooves formed after the first treatment of the canvas with a thin jets of water.

The canvas according to the invention differs from the subject of the patent application that the second, deeper grooves visually different from the thin grooves and removed from them, forming a separate group. Due to the presence of untreated h is h is achieved by the combination of the advantages of raw canvas (softness, absorptive capacity and thickness) with the mechanical strength and the absence of a slide in the surface of the canvas.

Another distinctive feature is that the canvas contains a group of at least two second adjacent grooves, preferably, not more than six second adjacent grooves. This creates zones in the form of bands with obvious relief, containing a surface that is not subjected to water jet treatment, making fibres, not processed hydraulic clutter, gives the product a great softness to the touch.

The preferred depth of the first grooves 50...250 μm. These grooves form areas of higher density weave compared to the previous one.

The preferred distance between two nearest first grooves is 0.2...2 mm, especially 1...2 mm, the Preferred distance between two successive second grooves 3...5 mm

According to another implementation variant of the invention the canvas contains a third groove that is different from the first and second. In particular, the third grooves differ in the depth and distance between them.

What follows is a more detailed description of the invention with reference to the drawings shown on the following figures, where

figure 1 schematically depicts a typical installation of the hydraulic tangling;

figure 2 PR is dstable schematically and in section the injector with a perforated plate;

figure 3 schematically shows a cross section of a processed canvas with a profile of varying height;

figure 4...9 schematically shows a different arrangement of perforations in different rows;

figure 10 and 10A shown, respectively, in the pattern formed by the perforations of the injector, and the profile measured after the first pilot test method hydraulic tangling;

on 11 and 11A shown, respectively, in the pattern formed by the perforations of the injector, and the profile measured after the second experimental test method hydraulic tangling;

on Fig and 12A shown, respectively, in the pattern formed by the perforations of the injector and the profile measured after the third experimental test method hydraulic tangling;

on Fig and 13A shown, respectively, in the pattern formed by the perforations of the injector and the profile measured after the fourth experimental test method hydraulic tangling;

on Fig shows another variant of the arrangement of the perforations.

Figure 1 schematically depicts the installation of the hydraulic tangling canvas fibers. Canvas N, the weight of which is preferably greater than 150 g/m2that is not the endless belt 1, which gives this canvas on the perforated drum 2 rotating around a horizontal axis. Next hole is t passes in front of the injector 3, located perpendicular to the direction of movement of the canvas. The injector contains perforations, which are distributed over the entire width of the canvas and through which the pump pressurized water with the formation of jets directed onto the canvas N. on the reverse side of the canvas inside the drum, the cut is made 4 through which is provided the diversion of water passing through the canvas and the porous material forming the jacket of the drum. After processing, the canvas serves, for example, in the drying zone. Figure 1 shows only one injector. In other embodiments of the invention envisages the use of two or more injectors arranged parallel to the first and, preferably, on each side of the canvas.

Figure 2 injector shown in more detail. It contains a water dispenser 5 in the form of a direct channel, here depicted in the curved section. This channel is equipped with grating 6 distribution of liquid on its axis. On the lattice there is a plate strip 7 with perforations, which is a replaceable item, fixed on its axis by means of clamping elements. Water supplied under pressure from a pipe water supply (not shown), fills in the distribution channel, passes through the grid 6 and the holes drilled in the plate strip 7, taking the form of jets. These holes or perforations are cross-cutting and vypolnenij plate to obtain permanent water jets cylindrical, needle-like shape. The holes with the same profile one piece can be, for example, cylindrical, and the second is to have a different form. In one of the known techniques of hydraulic tangling all the injection holes have a circular cross section. In addition, their diameter is constant over the entire height of the hole. According to another known technique of hydraulic tangling plate can contain up to three rows of injection holes arranged in a checkerboard pattern. Two - or three-row spacing of the holes ensures high durability of the canvas, using only one injector.

According to the invention, in the hydraulic tangling on the surface of the nonwoven material receiving structure with complex terrain. Figure 3 as an example, shows the profile of one such structure. In _N distinguish areas of different levels: for example, the first zone And the deeper the first level and the area In less deep level. If N canvas used to make pads for removing make-up, zone And, as a deeper, serve as drive means for removing make-up or a lotion for skin care before they are applied to the skin. Zone, as less deep, are areas of active contact with the skin while removing makeup. They hardened intermediate zone located between zone a and zone C. in Addition to the different ur the init, zones a and b can have different widths.

The structure presented in figure 3, obtained with the use of perforations made in the plate strip according to the proposed method.

The configuration of the perforations is determined by the desired shape of the jets.

Figure 4 shows the location of the perforations, allowing you to get the type of the profile presented in figure 3. These drawings and the following ones are not made in scale. The diameter of the perforations is increased for a better understanding of the invention. Perforations arranged in two mutually parallel rows and perpendicular to the feed direction of the canvas fibers. The first row consists of round perforations 8 of the same diameter, forming groups of five, which are at some distance from each other. Form streams generated by these perforations is determined by their cross-section.

Each group is separated from its neighboring groups at a distance greater than the first gap. For example, the interval between perforations of one group may be 0.2 mm or more, and the interval between two adjacent groups may exceed 2 mm, and the diameter of the perforations may be from 80 to 300 μm. In the next row are perforations 4'diameter different from the diameter of the perforations 8. Here they are in the interval between two adjacent groups of the first row.

In each group of Deuteronomy is the second row has two holes, which are located between the groups of the first row. Preferably, both series were on the same plate strip, since in this case the conditions of the water supply (including pressure) to the perforations will be the same. The jet coming out of the perforations of larger diameter, have more energy, as in this case, the energy associated with water consumption. Under the action of these jets are formed deeper furrows or grooves in comparison with grooves, which are formed under the action of the jets of the first row. The jet coming out of the perforations of both rows do not intersect, and the grooves are clearly separated. This is the best way to synchronize the water jets and control the formation of the final pattern.

On figa shows the location of the perforations in one row. This series consists of perforations with the first section 8A and perforations with the second section 4 A, different from the first. Figure 5 shows another arrangement of the perforations, which differs from the previous one by adding perforations 9' before the perforations 10 of the next row. Perforations 9' differ from the perforations 9 to its longitudinal profile (not shown), which leads to the formation of more scattered jets and getting less pronounced grooves. These perforations have a low hydraulic characteristics compared with perforations 9, the resulting water jet OS is ablaut low footprint on the surface of the canvas. The objective of these jets is to prepare the canvas for his treatment more powerful jets of the next row.

Figure 6 shows the perforation 11 in the second row, whose cross-section is not round in shape. It has an oval shape, and the axis is inclined relative to the location of the perforations 12. At the same time, the cross-sectional shape may be different, and perforation can be performed without tilting.

7 shows the perforation of the first series, made with a circular cross section. At the same time there are perforations 13 with the first section and the perforation 13' with a second section of larger diameter. Perforation 13 form groups of 5 with a certain interval between them. Among these groups are perforations 13', here at number two.

The second row consists of the perforations 14, the cross section of which in this case is identical to the cross section of the perforations with the first section. They are lined up in one line with the perforations 13 in the direction of movement of the blade (which is perpendicular to the rows of perforations). Two perforations 14' are aligned with the holes 13'. This location allows you to get the grooves with different levels: the first level is formed by the jets from the perforations 13 and 14, the second level is formed by the jets from the perforations 13' and 14', and the third level is formed by a single perforation 13'.

On Fig image is received 2 rows of perforations 15 and 16. The location of the perforations relative to the direction of movement of the canvas in the opposite sense to that shown on figure 4. In this case, the larger perforations are located at the front.

Figure 9 shows, as an example, the plate strip with three rows: 17, 18 and 19. The largest cross-section of the perforations of the number 17, perforation of the number of 18 to have an intermediate size relative to the sizes of the first and third rows, denoted respectively 17 and 19. Thus, the described process allows to obtain a cloth made of cotton or other cellulose fibers with different grooves of the profile.

You may obtain other combinations, not represented here, without leaving the scope of the invention, simultaneously changing the location of the perforations and their cross-section.

Received the product using water-jet injector according to the invention, the plate strip which contained holes, forming different patterns.

Figure 10 presents the injector plate strip which contains holes in two rows: the first row of holes 20 with a diameter of 140 μm and a second series of holes 21, which has an oval shape and a larger diameter which is 700 μm. Holes provided in the enlarged view relative to the interval between them. A repeating pattern is formed by five holes 20 with a diameter of 140 μm, the distance between which is 4.8 m is, and one oval hole. The distance between the center of the oval hole 21 and the center of an adjacent hole 20 is 7.2 mm, This pattern is repeated across the entire width of the injector. Four of the canvas the same weight Pds of absorbent cotton were subjected to hydraulic tangles using a water jet injector with different pressure P of the water supply for each canvas, respectively, 20, 40, 64 and 84 bar. After processing measured the thickness EP of the canvas in mm, its volume (expansion) G in mm, the strength in the direction of Rsm and in the transverse direction Rst in Newtons per inch width (N/inch).

The thickness EP of the canvas is a measurement result of a package of 20 pieces cut from the canvas using a pressure of 2.25 g/cm2. Volume (expansion) G, or potential thickness, corresponds to the reduced height of the package after removing the above-mentioned pressure.

The depth of the grooves was measured in the following ways :

The sample was placed under the digital camera 3 CDD, and the sample should be flat and well centered. Took the picture, then using the appropriate software (for example, Optocat) was treated with that part of the image obtained, which was of interest, using the gray code and phase-shift method. Automatic masking allowed to delete points with poor contrast is part of or unclear character. Then, using appropriate software (for example, Toposurf) analyzed the images and did a profile of its relief, and then measured the relief obtained by the curve.

For one of the investigated areas obtained curve is presented on figa, where x-axis is the length of the relief in mm and the y-axis deferred height in microns.

As can be seen from tiga measured area divided into segments from a to F. Each segment represents a dome-shaped profile with the apex between the two grooves. The distance between the grooves corresponds to the distance between the holes formed in the plate strip used injector, it is easy to check. In each segment measure the height from the apex to each of the two low points. So, get twice the height of the same peak relative to the lower level of the lateral grooves.

Then, for each vertex, which does not correspond to the deep groove (in this case, grooves, different from the grooves between segments C and D)determine the average of the two values. For deep grooves into account the maximum of the values obtained when measuring the high-side surface of the grooves. In this case, within the study area there is only one deep groove between C and D.

So get one value for each segment,respectively Hs small Hp large and Hm medium, where:

the value of Hs corresponds to the depth of the surface, the so-called first grooves;

value Hp corresponds to the maximum depth is deep, the so-called second grooves;

the value of Hm corresponds to the depth of the medium, the so-called third grooves or the first if there is no value Hs.

Because of the nature of the pattern in this example it was possible to determine only the values of Hp and Hm.

On the basis of the pressure P and flow rate, we can determine the energy EN (expressed in 10-3kW·h/m2)spent on the processing of the canvas.

Was a control sample made of canvas T injector with only one type of holes, evenly distanced from each other according to a known method.

It is established that if the amount of consumed energy is comparable with the value in the case of the control sample (between 1 and 2 10-3kW·h/m2), deep grooves, 600...850 μm, are formed only at a pressure of 40...64 bar. This value is comparable with the average depth of 250 μm on the sample.

It was also noted large thickness of the canvas (63...66 mm compared to 58 mm) and volume (expansion) (6 vs. 4).

The results are presented in the table below.

Pattern 1
ClothR barPds, g/m2ER, mmG mmRsm N/inchRst N/inchHp, mkmHm, ámHs, mmEN
T3425758424172501,72
18424563623158984643,18
2642396361710852392 2,12
3402406661276142991,05
420240645852741130,37

In this example, the first groove is a groove in the segments a, b, C; D, E, F, and a second groove formed between segments C and D.

Figure 11 shows the location of the holes in another experimental test.

The first row of this pattern contains the first group of five round holes 22 with a diameter of 140 μm, located at a distance of 1.2 mm from each other, and the second row contains the second group of three round holes with a diameter of 200 μm. The distance between the holes 23 is 2.4 mm, the Second group is at a distance of 4.8 mm from the first group as one, and with the other hand. This pattern is repeated across the plate strip.

The profile measured above methodology is, presented at figa.

In the investigated area revealed the presence of segments designated by letters from a to O. Were selected:

the first surface, the groove depth Hs, which was determined by the lateral surfaces of the segments (C, D, E, F, K, L, M, N);

second, deep grooves between segments a and b, G and H, I and J (a, b, G, N; I, J). The depth of Hp was determined on the basis of values obtained when measuring respectively the right side of the segment And the left side surface of the segment, the right-side surface of the segment G and the left lateral surface of segment j (a, b, G, J). Take into account the maximum value of Hp;

third groove depth Hm, a numeric value which was determined by the segments H and I (H, I).

The values obtained are given in the table below.

It should be noted that this pattern allows you to get a second groove depth up to 774 μm, and the distance between the first and second groups of holes is 4.8 mm

Pattern 2
ClothR barPds, g/m2ER, mmG mmRsm N/inchRst N/inchHp, mkm Hm, ámHs, mmEN
T3425758424172501,72
18423652448277743381576,55
26423356435186202611114,35
3402396261811428209 832,15
42022863685271142540,76

One of the variants of the pattern includes, for example, a group of five first holes 22, the distance between them is 1 mm, and a group of three second holes, the distance between which is 4 mm

On Fig shows the pattern of holes of the injector selected for the third pilot test.

The injector contains:

in the first row: a group of four round holes 24 with a diameter of 140 μm, arranged with an interval of 2 mm;

- in the second row: a group of three round holes 25 180 microns in diameter, spaced at intervals of 3 mm;

- in the third row: one round hole 26 with a diameter of 200 μm at a distance of 6 mm

On figa presents the elevation profile (in cross section relative to the direction of the grooves), obtained on the basis of the performed measurements.

The selected segments are denoted by letters from a to K, where

the first surface, the groove is limited segments (G on the right, H, I and J);

second, a deep groove is limited right b is a similar surface segment and the left lateral surface of segment D;

third grooves, the middle (or intermediate) depth limited lateral surfaces of segments E, F and the left lateral surface of segment G.

The results are presented in the table below.

Pattern 3
ClothR barPds, g/m2ER, mmG mmRsm N/inchRst N/inchHp, mkmHm, ámHs, mmEN
T3425758424172501,72
1842305034935774370233 4,3
26422257428187043732212,86
34023760515115923021681,41
42022863585308113610,50

On Fig shows the pattern of holes of the injector selected for the fourth experimental tests.

The injector contains:

in the first row: a group of four round holes 27 with a diameter of 140 μm, the distance between adjacent holes of 1.2 mm;

- in the second row: a group of two round holes 28 with a diameter of 180 μm, the distance between Sosa them hole 2.4 mm;

- in the third row: one round hole 29 with a diameter of 200 μm, a distance of 4.8 mm

On figa presents the profile obtained on the basis of the performed measurements.

The selected segments are denoted by letters from a to N, where

the first surface, the groove is limited segments (C, D, E, J, K, L);

three second deep grooves (left side surface of the segment And between G and H; the right lateral surface of segment N);

third grooves, the average depth is limited segments (B, F, I, M).

Below is a table in which are received values.

Pattern 4
ClothR barPds, g/m2ER, mmG mmRsm N/inchRst N/inchHp, mkmHm, ámHs, mmEN
T342575842417250 1,72
1842374734634501244105of 6.31
26422756434225361331144,19
34022659519124642321112,07
42022962585221139550,73

Grooves direct alinanya, but at least part of them can be broken, wavy, sinusoidal, and even intermittent form.

One of the variants of this pattern (not shown) provides a group of four or five holes 27 (140 μm), the distance between which is 1.2 mm, a group of two holes 28 (180 μm) with a distance of 3.6 mm and another hole 29 (200 μm), the distance of 3.6 mm

On Fig shows another variant of an arrangement of apertures on the plate strip injector.

One row of this pattern contains a group of three holes 30 (140 μm), the distance between adjacent holes of 1 mm, the second row contains a group of two holes 31 (180 μm), the distance between adjacent holes 3 mm, one row contains one hole 32 (200 μm) with a distance of 3 mm from the holes 31 and 4 mm from the holes 30.

Thus, it is possible to change the location of holes of different diameter and length in a separate series or in the same row.

1. Way hydraulic tangle of canvas fibers (N), consisting in the fact that the canvas is placed on the porous substrate (1), which moves in a straight line or rotates around an axis, is subjected to the canvas treatment with at least one side with a number of water jets arranged in a row perpendicular to the direction of movement of the canvas, characterized in that the number formed by the jets real the cross-section (8A) and at least also the jets of the second section (4A), other than the first.

2. Way hydraulic tangling canvas fibers, consisting in the fact that the canvas is placed on a porous substrate, which moves in a straight line or rotates around an axis, is subjected to the canvas processed by a number of water jets located at least in two rows perpendicular to the direction of movement of the canvas, characterized in that the rows are formed by the jets of the first section(8, 12, 13, 15, 17) and at least the jets of the second section(4, 11, 14, 16, 18, 19), other than the first, and one row is formed by the jets, the distance between them is not constant.

3. The method according to claim 2, in which the canvas is subjected to processing streams that make up the ranks in number from two to four.

4. The method according to claim 2 or 3, in which the rows of jets create the same injector (3).

5. The method according to claim 3, in which one row consists of jets (8, 15)forming spaced from each other group, and the next series consists of jets whose location different from the location of the jets of the first row relative to the direction of movement of the canvas (4, 16).

6. The method according to claim 3, in which one row consists of jets (13)forming spaced from each other group, and the next series consists of jets (14, 14'), which are partly coincides with the location of the jets of the first row relative to the management of the movement of the canvas.

7. The method according to any of pp.5 and 6, in which the first series consists of streams of the first section and the following series consists of streams of the second section.

8. The method according to any of pp.5 and 6, in which the first series consists of streams of the first and second sections, and the following series consists of streams of the second section or from the jets of the second and third sections.

9. The method according to claim 1, in which the processing is subjected to both sides of the canvas.

10. The method according to claim 2, in which the processing is subjected to both sides of the canvas.

11. The method according to claim 1, wherein the treatment machine, mainly cellulose fibers, in particular cotton.

12. The method according to claim 2, wherein the treatment machine, mainly cellulose fibers, in particular cotton.

13. A device for implementing the method according to any one of claims 1,9 or 11, in which the jet created by the perforations made in the plate with perforations running parallel to the canal water distribution, characterized in that the perforation in the plate (7) have different cross-section.

14. The device for implementing the method according to any one of claim 2 to 8, 10 or 12, in which the jet created by the perforations made in the plate with perforations running parallel to the canal water distribution, characterized in that the perforation in the plate (7) have different cross-section.

15. The device according to item 13, in which the plate (7) which holds at least two rows of perforations.

16. The device according to 14, in which the plate (7) contains at least two rows of perforations.

17. The device according to item 15, in which the first row contains the perforation of the first section, and this section differs from section perforations of the second row.

18. The device according to clause 16, in which the first row contains the perforation of the first section, and this section differs from section perforations of the second row.

19. The canvas of the fibers subjected to hydraulic tangling with water jets, in which at least one side contains grooves obtained above hydraulic clutter, characterized in that it contains at least
the first groove depth of 50...600 μm, and the distance between the first groove and the adjacent groove is from 0.2 to 5 mm, and
at least one second groove depth of from 200 to 1000 μm, and the distance between the second groove and the adjacent groove ranges from 2 to 9 mm, and the depth and distance of the second groove exceed these values, the first grooves.

20. The canvas of the fibers according to claim 19, containing at least one group of at least two second adjacent grooves and preferably not more than five second adjacent grooves.

21. The canvas of the fibers in claim 20, containing not more than six second adjacent grooves.

22. The canvas of the fibers according to any one of p, 20 or 21, in which the depth is ervah grooves 50...250 microns.

23. The canvas of the fibers according to claim 19, containing at least one group of at least two first adjacent grooves and preferably not more than twenty-first adjacent grooves.

24. The canvas of the fibers according to claim 19, in which the distance between one of the first grooves and the adjacent groove is 0.2...2 mm, preferably 1 to 2 mm.

25. The canvas of the fibers according to claim 19, in which the distance between one of the second grooves and the adjacent groove is 3...5 mm

26. The canvas of the fibers according to claim 19, containing the third groove, which differ from the first and second grooves.

27. The canvas of the fibers on p, in which the third groove are different from the other two depths.

28. The canvas of the fibers on p, in which the third groove are different from the other two intervals.

29. The canvas of fibres obtained by a method according to any one of claims 1, 9 or 11.

30. The canvas of fibres obtained by a method according to any of claim 2 to 8, 10 or 12.

31. Fibrous swab for skin care made from canvas on any of PP-28.

32. Fibrous swab for skin care made from canvas on clause 29.

33. Fibrous swab for skin care made from canvas on item 30.



 

Same patents:

FIELD: textile, paper.

SUBSTANCE: invention refers to nonwoven material technology and can as a base of building, finishing and other similar materials. Method for making nonwoven needled felt involves pulverisation and emulsification of mixture, rest, hackle webbing, cure, dipping in binder, drying, and cooling. Thus rest is followed with straight and cross hackling packed within at least five web layers needle-punched over two stages. Besides before the second stage, reinforcing filament is added, while material is pull-up smoothed, glazed and dipped in binder, dried and processed in cold glazer.

EFFECT: higher efficiency of method for making nonwoven needled felt with improved application performance.

12 cl, 2 tbl

FIELD: textile; paper; process.

SUBSTANCE: method provides forming of composition nonwoven material with surface layer, underlayer and wireframe interlayer made of polymer material, at that received structure is passed through shafting. In the course of protective material receiving surface layer and underlayer form with surface density 200-400 g/m2, at that thickness of wireframe interlayer is 100-250 micron. Layers binding is implemented by means of passing through tightly pressured shafting, at that ratio of shafts diameters is 1:[6-8], big shaft is heated till temperature 180-250°C, and its rotational velocity is 1.2-4 rpm. Finished nonwoven material is enrolled and held at temperature 18-24°C during at least three days.

EFFECT: improvement of material physical properties; reduction of ecological stress to environment and reduction of material and technical consumption at its recovery.

1 tbl, 1 ex

FIELD: textile; paper.

SUBSTANCE: presented bed for implementation of hydrocrowding process is manufactured by means of including in it depressed fibres during its manufacturing or forming of depressed fibres by means of calendering or grinding of initial fabric. Including of depressed fibres into bed at manufacturing of nonwoven fabrics provides higher crowding of fibres forming nonwoven fabrics.

EFFECT: creation of more rugged finished nonwoven material.

20 cl, 10 dwg

FIELD: textiles.

SUBSTANCE: invention relates to an apparatus for colourless patterning of a textile fabric made of mutually interlaced and thus strengthened natural or synthetic fibres, preferably of a nonwoven fabric such as a wadding web, which is also dried in the case of a wet treatment such as hydrodynamic needling. The apparatus comprises a housing and a revolving drum provided therein, whereby the textile fabric is pressed by an overpressure and underpressure against the drum having perforations so that the cross-sectional areas of the perforations generate a picture pattern on the textile fabric, wherein an external peripheral surface of the drum being subject to drawing is provided with perforations depicting an image, which perforations act in diverse pattern-imparting fashions on the textile fabric resting thereon. Moreover, the drum and its external peripheral surface are microperforated as a whole and thus fluid-permeable, and the pattern-imparting perforations are sized larger than the microperforation of the surface supporting the textile fabric, Moreover, the textile fabric is capable of leading the fluid away from the entire surface in a region of the pictorial pattern and also beyond peripheral regions of the pictorial pattern.

EFFECT: providing a method with which a pattern can be continuously imposed on a nonwoven fabric in the course of treatment.

11 cl, 2 dwg

FIELD: technological processes.

SUBSTANCE: invention is manufactured out of thermostable or heat resistant fibres and may be used for manufacturing parts out of thermal structural composite material. Carbon nanotubes are in-built into fibre structure by means of their growing on the heat-resistant fibres of the basis.

EFFECT: provides more well-ordered tightening of parts and improvement of mechanical qualities.

31 cl, 6 dwg, 9 ex

Biomat // 2321982

FIELD: reinforcement and protection of ground surfaces such as ground planning embankment slopes, automobile and railway roads, open pits, dry slopes of earth-fill dams etc from erosion processes by quick recovery of soil and plant layer.

SUBSTANCE: biomat is formed as multiple-layer, at least three-layer, structure including layers of cloth comprising artificial chemical fibers, and intermediate layer placed between each two cloth layers and secured therewith, said intermediate layer comprising plant seeds. Natural fibers are added into cloth so as to form mixture of natural and synthetic fibers, said mixture containing at least 15-50 wt% of synthetic fibers and 50-85 wt% of natural fibers from materials which form upon decomposition nutritive medium for plants, and surface density of cloth ranging between 250 and 800 g/m2. Apart from seeds of plants presented in cloth structure in an amount of 60-150 g/m2, cloth additionally contains nutrient mixture consisting of fertilizers, plant growth promoters and soil forming additives selected with soil-ground conditions of region where biomat is to be utilized and composition of used seeds being taken into consideration. Content of nutrient mixture is 20-90 g/m2. Also, natural or artificial sorbing substances are introduced into biomat structure in an amount of 30-600 g/m2 by embedding of these substances into cloth or composition of intermediate layer. Biomat may be readily unrolled on any ground surface and serves as artificial soil layer.

EFFECT: high moisture retention capacity providing formation of stable soil and ground covering, improved protection of ground surface from erosion processes, retention of plant seeds during growing, efficient development of root system during vegetation and high vitality of plant covering during formation thereof.

7 cl, 1 tbl

FIELD: chemical and light industry, in particular, production of viscose staple fiber containing antibacterial preparation for manufacture of non-woven material used for manufacture of air filters.

SUBSTANCE: method involves washing formed viscose threads; squeezing to provide 50%-content of α-cellulose; treating with aqueous catamine solution having mass concentration of 15-40 g/dm3; providing two-staged washing procedure in countercurrent of softened water at feeding and discharge temperature difference making 4-6 C at first stage and 3-5 C at second stage. Temperature of aqueous catamine solution is 18-30 C. Resultant thread has linear density of single fibers of 0.17-0.22 tex and mass fraction of 0.6-4.0% of catamine. Thread is subjected to drying process at temperature of drying drum surface of 80-90 C, followed by corrugation and cutting into 60-70 mm long fibers. Method further involves fixing resultant fibrous web by stitching process on substrate of thermally secured polypropylene having surface density of 10-30 g/m2.

EFFECT: enhanced antibacterial properties and reduced aerodynamic resistance of resultant material allowing blowing-off of fibers from filter layer by flow of air under filtering process to be prevented.

3 cl, 2 tbl, 6 ex

FIELD: textile industry, in particular, versions of nonwoven fibrous material made in the form of needle stitched web.

SUBSTANCE: material is manufactured from mixture of high-melting point and various low-melting point fibers, with main fiber being two-component polyester fiber of "core-coat" type. Polymer of "coat" has melting temperature substantially lower than polymer of "core". According to first version, low-melting point fiber used is staple two-component polyester fiber of "core-coat" type having thickness of 0.4-1.0 tex, length of 50-90 mm and melting temperature of "coat" polymer of 105-115 C. High-melting point fiber is staple polyester fiber having thickness of 0.3-1.7 tex, length of 60-90 mm and melting temperature of 240-260 C. Ratio of fibers in mixture, wt%, is: staple two-component polyester fiber of "core-coat" type 30-70; staple polyester fiber the balance to 100. According to second version, nonwoven fabric additionally comprises auxiliary staple polypropylene fiber having thickness of 0.6-1.7 tex, length of 50-90 mm and melting temperature of 150-160 C. Ratio of fibers in mixture is, wt%: staple two-component polyester fiber of "core-coat" type 30-70; staple polypropylene fiber 5-20; staple polyester fiber the balance to 100.

EFFECT: improved operating properties and form stability of parts manufactured from nonwoven fibrous material under conditions of changing temperature loadings.

3 cl, 1 tbl, 5 ex

FIELD: textile industry.

SUBSTANCE: three-dimensional nonwoven fibrous textile material is composed of netted woven carcass and layers of fibrous cloths arranged at both sides of carcass and mechanically attached thereto. Carcass is produced from thermoplastic weft threads with linear density of 29-72 tex and thermoplastic warp threads with linear density of 14-20 tex and surface density of 80-220 g/m2. Said threads are preliminarily subjected to shrinkage. Method involves applying onto melted netted woven carcass layers of fibrous materials and mechanically attaching said layer in alternation to each side; applying onto each side of carcass at least one layer of fibrous cloth and attaching it by needle stitching; subjecting nonwoven material to thermal processing at temperature of 80-1580C under pressure of 0.3-0.6 MPa for 40-120 min.

EFFECT: improved organoliptical properties and improved appearance of material.

3 cl

The invention relates to the manufacture of nonwoven materials and can be used as a protective material for aggressive environments

FIELD: technological processes.

SUBSTANCE: proposal is given of a sheet with at least, two monolayers, each of which contains unidirectional oriented fibres, binding substance and parting film with porosity of 40-90% on both outer surfaces. The unidirectional oriented fibres in the monolayer have breaking stress of approximately 1.2GPa, and Young's modulus of at least 40 GPa. The direction of fibres in each monolayer is opposite the direction of fibres in the adjacent monolayer. The invention also pertains to assembling of at least, two such sheets and a flexible object, resistant to ballistic effects, with such a structure.

EFFECT: increased ballistic stability.

11 cl, 1 tbl, 3 ex

The invention relates to a method of manufacturing a composite multi-layered material, preferably a material with cross-orientation of reinforcing fibers, whereby parallel spaced fibers covered with a matrix substance and together with the pre-formed non-leaking tracks arranged in parallel fibers or overlapping systems arranged in parallel, the fibers are passed through a zone of overlap, and the orientation of the fibers in the joined layers has at least two directions

The invention relates to chemical engineering and can be used in capacitive equipment in contact with corrosive environments of various chemical, petrochemical, electronic, textile and related industries

FIELD: technological processes.

SUBSTANCE: proposal is given of a sheet with at least, two monolayers, each of which contains unidirectional oriented fibres, binding substance and parting film with porosity of 40-90% on both outer surfaces. The unidirectional oriented fibres in the monolayer have breaking stress of approximately 1.2GPa, and Young's modulus of at least 40 GPa. The direction of fibres in each monolayer is opposite the direction of fibres in the adjacent monolayer. The invention also pertains to assembling of at least, two such sheets and a flexible object, resistant to ballistic effects, with such a structure.

EFFECT: increased ballistic stability.

11 cl, 1 tbl, 3 ex

FIELD: engineering procedures.

SUBSTANCE: one version of the method consists that the cloth is placed on porous substrate movable on the straight or rotating about the axis. At least one side of the cloth is processed with some water jets rowed perpendicularly to cloth moving direction. Herewith a row is formed with one-section jets and at least other section jets different from the first one.

EFFECT: improved surface properties of the product.

33 cl, 17 dwg

FIELD: roof.

SUBSTANCE: invention is related to roll roofing materials. Roll roofing material contains upper protective layer, substrate and polymer reinforcing mesh arranged in between. Protective layer is made of composition that consists of polyvinyl chloride, dioctyl phthalate, chalk, titanium dioxide and thermal stabilisers. Substrate is made of composition made of polyvinyl chloride, dioctyl phthalate, chalk, thermal stabilisers and wastes of roll roofing material production.

EFFECT: invention provides for lower level of linear dimensions variation in process of material heating and high quality of material with increase of its thickness.

2 ex

FIELD: textile, paper.

SUBSTANCE: stock comprises a central part with interwoven layers, the first and second end parts with independent woven layers. Layers of the independent woven layers pass along whole length of the stock in the central part to form a 3D woven structure. The layers are woven independently from each other in the end parts to form a pile of woven fabrics. Diagonal layers are added between independent woven layers in the first and second end parts. The 3D composite structure reinforced with a woven stock comprises a central part, the first and second end parts, and also a binding material.

EFFECT: invention provides for the possibility of the structure to perceive high concentrated loads.

22 cl, 8 dwg

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