CN115323592B - Anti-fuzzing and anti-pilling fabric with connecting layer and preparation method thereof - Google Patents

Abstract

The invention provides a fabric with a connecting layer and capable of preventing hooking wires and pilling and a preparation method thereof. The fabric comprises a surface layer, a connecting layer and a bottom layer, wherein the surface layer and the bottom layer are connected through the connecting layer; the tie layer is formed from multifilament yarn, wherein the multifilament yarn meets the following conditions: the curling shrinkage rate is more than or equal to 20 percent and less than or equal to 55 percent, the fineness of the monofilaments is more than or equal to 1D and less than or equal to 5D, and the F number is more than or equal to 9 and less than or equal to 144. The invention also provides a preparation method of the fabric. According to the fabric and the preparation method thereof, the high-curling shrinkage textured yarn multifilament is adopted to form the connecting layer, the mobility of the molecular chains of the fibers of the connecting layer is enhanced through heat treatment, the curling and elastic recovery effects of the fibers of the connecting layer are improved, further the coils on the surface layer and the bottom layer of the fabric are guided to further shrink, the fluffiness and the stability of the connecting layer are improved, the problems of pilling and yarn hooking of an air layer fabric are solved, and the prepared fabric has good hand feeling.

Description

An anti-snagging and anti-pilling fabric with a connecting layer and a preparation method thereof

Technical field

The invention relates to a fabric and a preparation method thereof, and belongs to the field of textile technology.

Background technique

Knitted air layer fabric is fluffy, wide, soft, elastic and comfortable. It is one of the most popular fabrics in recent years and is often used in autumn and winter coats, sweatshirts and sweatpants. There is no connection between the air layer tissue and the plain knit tissue on its front and back sides, and tucks are woven on the dial and cylinder at the same time. The tucks fill the air layer formed on the front and back, making the fabric thick and fluffy.

However, after long-term wear and friction, pilling and snagging are easy to occur, which is a pain point of this fabric. Currently commonly used solutions are: first, using anti-slip finishing agents to reduce the slip of polyester filaments, but the effect is not obvious. At the same time, the use of softeners in the post-finishing stage is highly restricted, resulting in a greater sacrifice in the feel of the finished product; the second is to target Treating the hairiness on the surface of the fabric can improve the pilling phenomenon to a certain extent, but there is no obvious improvement in the snagging phenomenon.

The invention patent application with application number 201910820707 relates to an anti-pilling and anti-snagging jacquard fabric and its preparation method. It uses 20D/1F filament weaving to avoid pilling and snagging, but it is difficult to obtain fluffy and soft fabrics using monofilament weaving. feel.

CN 110923921 B discloses an anti-pilling polyester/cotton knitted fabric and its manufacturing process. It uses a composite polyester layer containing low melting point polyester as the connecting layer, which can effectively avoid snagging, but the low melting point polyester has low crystallinity after melting. Increase, causing the fabric to feel hard and stiff, and lose its fluffy feel.

Contents of the invention

In order to solve the above technical problems, the object of the present invention is to provide a fabric that uses multifilaments with curling, shrinkage and deformation functions to form a connecting layer, so as to solve the problems of pilling and snagging of air layer fabrics.

In order to achieve the above object, the present invention provides a fabric with a connecting layer that is anti-snagging and anti-pilling, wherein the fabric includes a surface layer, a connecting layer, and a bottom layer, and the surface layer and the bottom layer are connected through the connecting layer;

The connecting layer is formed of multifilament, wherein the multifilament meets the following conditions:

20%≤crimp shrinkage≤55%, 1D≤monofilament fineness≤5D, 9≤F number≤144.

According to a specific embodiment of the present invention, the multifilament consists of several single filaments. Preferably, the multifilament satisfies the following conditions: 35% ≤ crimp shrinkage ≤ 55%. Crimp shrinkage is a performance indicator controlled during multifilament production.

According to a specific embodiment of the present invention, preferably, the multifilament satisfies the following conditions: 2.5D≤monofilament fineness≤4D.

According to a specific embodiment of the present invention, preferably, the multifilament satisfies the following conditions: 12≤F number≤72.

According to a specific embodiment of the present invention, preferably, the surface layer has a transverse density range of 30-60 wales/inch and a longitudinal density range of 30-70 courses/inch. Transverse density (horizontal density) and longitudinal density (vertical density) are expressed in terms of the number of coils in 1 inch.

According to the specific embodiment of the present invention, the fabric of the present invention does not use spandex filaments as connecting yarns. Spandex is all monofilament, and the elastic recovery is too large, which will reduce the distance between the front and back layers under the action of elasticity, resulting in The fabric does not have a fluffy air layer, and does not have the fluffy feel of multifilament as the connecting yarn.

According to a specific embodiment of the present invention, preferably, the monofilaments that make up the multifilament include one or a combination of two or more of polyester fiber, polyester-nylon composite fiber, and nylon fiber.

According to a specific embodiment of the present invention, preferably, the material of the polyester fiber is selected from the group consisting of polyethylene terephthalate (PET), polybutylene terephthalate (PBT), and polypropylene terephthalate. One or a combination of two or more diesters (PTT).

According to a specific embodiment of the present invention, preferably, the material of the polyester fiber is two-component polyester or one-component polyester.

According to a specific embodiment of the present invention, preferably, the fabric is a hollow layer fabric.

According to a specific embodiment of the present invention, preferably, the fabric includes at least one surface layer and at least one bottom layer, for example, two surface layers and two bottom layers, or three surface layers and three bottom layers.

According to a specific embodiment of the present invention, the anti-snagging and anti-pilling fabric with the connecting layer of the present invention may also be called an anti-pilling, snagging air layer fabric. Preferably, the fabric is knitted on a double-sided knitting machine, the surface layer is knitted on a needle cylinder, the bottom layer is knitted on a dial, and the connecting layer is knitted in tucks on a dial needle.

The invention also provides a method for preparing the above-mentioned fabric, which includes the following steps:

Weave the multifilament as the connecting layer to obtain a gray fabric. During the weaving process, the multifilament is straightened and the yarn length is controlled in a small way;

After being removed from the machine, the multifilament elastically recovers to form a connecting layer between the surface layer and the bottom layer. At the same time, the multifilament drives the coils in the surface layer and the bottom layer to shrink, thereby obtaining the fabric.

In the preparation method provided by the invention, the crimped connecting wire is straightened by controlling the braiding tension, and the yarn length is controlled to be small; after the machine is unloaded, due to the elastic recovery effect of the multifilament as the connecting wire, it shrinks between the surface layer and the bottom layer. It forms an air layer structure with high curl, fluffy and good support effect; at the same time, the shrinkage of the multifilament as the connecting thread drives the coils in the surface layer and bottom layer of the fabric to shrink, further increasing the density of the fabric surface and solving the pilling problem of the air layer fabric. Problem with snagging. Through dyeing and finishing, the multifilament yarn used as the connecting yarn can further shrink and further increase the surface density.

In the above preparation method, preferably, the yarn length is controlled in a small way and one of the following two methods is selected:

Method 1: The distance between the barrel openings is 1mm-2.5mm, and the needle plate and cylinder are used for needle knitting. The yarn length is 50C=100mm-170mm;

Method 2: The distance between the barrel openings is 1mm-2.5mm, and the needle plate and barrel are used for staggered knitting. The yarn length is 50C=200mm-340mm.

In the above preparation method, preferably, the preparation method also includes a process of preshrinking and shaping the gray fabric. During the insulation process included in the pre-treatment, the connecting wires will shrink. After the connecting wire shrinks, the curl degree increases, which can improve the structural stability of the air layer, as shown in Figures 1 and 2. Figure 1 is a schematic diagram of an ordinary air layer, and Figure 2 is a schematic diagram of the air layer of the present invention.

In the above preparation method, preferably, the pre-shrinking treatment includes open-width water washing pre-shrinking and/or in-cylinder pre-shrinking.

In the above preparation method, the preparation of the fabric includes processes such as weaving base, preshrinking treatment, dyeing, and shaping. Preferably, the shaping treatment of the fabric meets the following requirements: preshrunk door width ≤ finished door width ≤ preshrunk back door Width × 1.08% to avoid widening the coil columns at high temperatures.

In the above preparation method, the curling and shrinkage of the multifilament (connecting filament) can be achieved by controlling the temperature during the heat preservation process of the preshrinking treatment or the dyeing temperature.

In the above preparation method, preferably, the temperature of the heat preservation process of the pre-shrinking treatment is 80-135°C, and more preferably 130°C.

In the above preparation method, preferably, the time of the heat preservation process of the pre-shrinking treatment is 30 minutes.

In the above preparation method, preferably, the preparation method further includes a process of dyeing the gray cloth. When polyester is conventionally dyed, since the dyeing environment has a certain temperature (generally 130°C) and the fabric will run in the vat for 5-6 hours, the multifilament can shrink more fully during this process. Achieve a more sufficient shrinkage effect than washing and pre-shrinking gray fabrics.

The fabric and its preparation method provided by the invention form a connecting layer by using multifilament yarns with high crimp and shrinkage deformation. Through heat treatment, the mobility of the fiber molecular chains of the connecting layer is strengthened, and the curl and elastic recovery effects of the connecting layer fibers are improved, thereby It guides the coils on the surface and bottom layers of the fabric to further shrink, improves the fluffiness and stability of the connecting layer, and can solve the problems of pilling and snagging that are prone to occur in air layer fabrics, and the prepared fabric has a good feel.

Description of the drawings

Figure 1 is a schematic diagram of an ordinary air layer.

Figure 2 is a schematic diagram of the air layer formed by the present invention.

Figure 3 is a schematic diagram of the surface state of a fabric using ordinary polyester yarn as connecting yarn.

Figure 4 shows the friction simulation experimental results of the comparative fabric sample.

Figure 5 shows the friction simulation experiment results of the fabric sample of Example 1.

Detailed ways

In order to have a clearer understanding of the technical features, purposes and beneficial effects of the present invention, the technical solutions of the present invention are described in detail below, but this should not be understood as limiting the implementable scope of the present invention.

Comparative ratio

When ordinary polyester yarn is used as the connecting yarn, and the surface and bottom layers are knitted with non-thermoplastic fibers, the coil size of the surface and bottom layers can only be controlled by knitting, which is greatly limited by the needle pitch. The connecting wires are often exposed from between the columns of surface coils, causing snagging or fluffing and pilling, as shown in Figure 3. In Figure 3, the area shown by the box is the gap in the coil column, and the connecting wire is at this position. The larger the gap, the greater the possibility of the connecting wire contacting the outside, which will cause snagging and pilling.

Example 1

This embodiment provides an anti-pilling and snagging air layer fabric, which includes a surface layer, a connecting layer, and a bottom layer, wherein:

The surface and bottom layers are woven from 30S Siro compact cotton yarn;

The connecting layer is woven from high-crimp-shrinkage filaments. The high-crimp-shrinkage filaments are woven with 55D/24F PBT DTY, with a crimp shrinkage rate of 46.5%.

The anti-pilling and snagging air layer fabric is prepared in the following manner:

An 18G34-inch double-sided circular knitting machine is used. The distance between the needle cylinder and the dial is 2.0MM, and the yarn feeding tension is 8cN. The circular knitting machine is equipped with a FEED machine with an active yarn feeding device. The upper and lower plates are arranged in staggered stitches. The upper plate of the first mold is fully looped, and the lower plate is not woven, and 30S Siro compact spinning cotton yarn is fed, and the yarn feed amount is 50C=135mm; the second mold is sequentially looped on the upper and lower plates, and 55D/24F PBTDTY is fed, and the yarn feed amount is 50C=320mm; the upper plate of the third mold is not woven, and the lower plate is fully looped. 30S Siro compact cotton yarn is fed, and the yarn feed amount is 50C=135mm.

After weaving is completed, the gray fabric is dyed and shaped to obtain the finished product. Among them, dyeing includes dyeing polyester and dyeing cotton. Among them, the pre-treatment process of polyester dyeing uses the following reagents: bleaching agent 1.5G/L, penetrant 0.3G/L, Kingboard 50% ionic alkali 2G/L, hydrogen peroxide 3G/ L, glacial acetic acid 1G/L; the polyester dyeing process uses the following reagents: disperse dye 2%, dispersant 1G/L, leveling agent 0.25G/L, glacial acetic acid 2G/L, Jiantao 50% ionic alkali 3G/ L, insurance powder 2G/L; dyeing polyester needs to be kept at 130°C for 30 minutes. The cotton pre-treatment process uses the following reagents: penetrant 0.25G/L; the cotton dyeing process uses the following reagents: reactive dye 2%, Yuanming powder 70G/L, soda ash 20G/L; the cotton post-treatment process uses the following Reagent preparation: soaping agent 0.5G/L, dispersing agent 0.5G/L, fixing agent 4G/L;

The dyed fabric is subjected to styling treatment, including: temperature 135°C, speed 15M/MIN, overfeeding 30%; styling finishing fluid consists of low-temperature degreasing agent 1G/L, soft oil 75G/L and pH value adjustment 15G/L ; Among them, the fixed front door width is 55 inches, the finished door width is 58 inches, and the finished product setting control door width does not exceed 8% of the fixed front door width; the fabric made has a fluffy feel, a tight surface, and good resilience.

The performance comparison with conventional polyester-cotton air-layer fabrics woven with the same gauge and machine model is shown in Table 1. The surface and bottom layers of the comparative conventional cotton-polyester air-layer fabrics are cotton, and the connecting layer is ordinary polyester. , other processes are the same as the air layer fabric of Example 1:

Table 1

It can be seen from the above comparison that even if Siro compact spinning is used, the pilling performance of the comparative sample can only reach level 3.5 and cannot be further improved. However, the air layer fabric obtained by using the technical solution of the present invention has a pilling performance There is a significant improvement, a half-level difference. The hook surface of Velcro is applied to the surface of the fabric and rubbed back and forth to simulate the scene of wearing air layer trousers and shoes with Velcro accessories at the same time. It is found that hooks appear in the air layer of ordinary cotton polyester, and the fabric is hooked by Velcro and pulled up. The surface of the air layer of the present invention has no change and is not caught by the hook surface of the Velcro, as shown in Figures 4 and 5.

Example 2

This embodiment provides an anti-pilling and snagging air layer fabric, which fabric includes a surface layer, a connecting layer, and a bottom layer, wherein:

The surface and bottom layers are woven from 30S Siro compact cotton yarn;

The connecting layer is woven from high-crimp-shrinkage filaments. The high-crimp-shrinkage filaments are woven with 50D/32FPET+PTT two-component DTY, with a crimp shrinkage rate of 38.3%.

The anti-pilling and snagging air layer fabric is prepared in the following manner:

An 18G34-inch double-sided circular knitting machine is used. The distance between the needle cylinder and the dial is 2.0MM, and the yarn feeding tension is 8cN. The circular knitting machine is equipped with a FEED machine with an active yarn feeding device. The upper and lower plates are arranged in staggered stitches. The upper plate of the first mold is fully looped, and the lower plate is not woven, and 30S Siro compact spinning cotton yarn is fed, and the yarn feed amount is 50C=135mm; the second mold is sequentially looped on the upper and lower plates, and fed with 50D/32F PET+PTT double groups Divide into DTY, the yarn feed amount is 50C=320mm; the upper plate of the third mold is not knitted, the lower plate is fully looped, feed 30S Siro compact cotton yarn, the yarn feed amount is 50C=135mm.

After weaving is completed, the gray fabric undergoes boiling water shrinkage treatment, dyeing, and shaping to obtain the finished product. Among them, the boiling water shrinkage is carried out in the cylinder, and the water is boiled at 100°C and kept warm for 30 minutes. Dyeing includes dyeing polyester and cotton. Among them, the pre-treatment process of polyester dyeing uses the following reagents: bleaching agent 1.5G/L, penetrant 0.3G/L, Kingboard 50% ionic alkali 2G/L, hydrogen peroxide 3G/L, Glacial acetic acid 1G/L; polyester dyeing process uses the following reagents: disperse dye 2%, dispersant 1G/L, leveling agent 0.25G/L, glacial acetic acid 2G/L, Kingboard 50% ionic alkali 3G/L, Insurance powder 2G/L; dyeing polyester needs to be kept at 130°C for 30 minutes. The cotton pre-treatment process uses the following reagents: penetrant 0.25G/L; the cotton dyeing process uses the following reagents: reactive dye 2%, Yuanming powder 70G/L, soda ash 20G/L; the cotton post-treatment process uses the following Reagent preparation: soaping agent 0.5G/L, dispersing agent 0.5G/L, fixing agent 4G/L;

The dyed fabric is subjected to styling treatment, including: temperature 135°C, speed 15M/MIN, overfeeding 30%; styling finishing fluid consists of low-temperature degreasing agent 1G/L, soft oil 75G/L and pH value adjustment 15G/L ; Among them, the fixed front door width is 55 inches, the finished door width is 58 inches, and the finished product setting control door width does not exceed 8% of the fixed front door width; the fabric made has a fluffy feel, a tight surface, and good resilience.

The relevant performance test results of the fabric of this embodiment are shown in Table 2:

Table 2

It can be seen from the contents of Table 2 that the fabric provided in Example 2 has good anti-snagging and anti-pilling properties.

Claims (21)

1. The anti-fuzzing and anti-pilling fabric with the connecting layer comprises a surface layer, a connecting layer and a bottom layer, wherein the surface layer and the bottom layer are connected through the connecting layer;

the tie layer is formed from multifilament yarn, wherein the multifilament yarn meets the following conditions:

the curling shrinkage rate is more than or equal to 20 percent and less than or equal to 55 percent, the fineness of the monofilaments is more than or equal to 1D and less than or equal to 5D, and the F number is more than or equal to 9 and less than or equal to 144;

the method comprises the steps of taking multifilament as a connecting layer for knitting to obtain grey cloth, wherein the multifilament is straightened and yarn length is controlled in a small control mode in the knitting process; after the machine is started, the multifilament is elastically restored, a connecting layer is formed between the surface layer and the bottom layer, and simultaneously, the multifilament drives the coils in the surface layer and the bottom layer to shrink, so that the fabric is obtained;

the yarn length is controlled in a small control mode, and one of the following two modes is selected:

mode one: the nozzle distance is 1mm-2.5mm, the needle is adopted to weave the needle by adopting a needle dial and a needle cylinder, and the yarn length is 50C=100 mm-170mm;

mode two: the nozzle distance is 1mm-2.5mm, the needle disc and the needle cylinder are adopted for staggered knitting, and the yarn length is 50C=200 mm-340mm.

2. The fabric of claim 1, wherein the multifilament yarn meets the following conditions: the curling shrinkage rate is more than or equal to 35 percent and less than or equal to 50 percent.

3. The fabric of claim 1, wherein the multifilament yarn meets the following conditions: the monofilament fineness is less than or equal to 2.5D and less than or equal to 4D.

4. The fabric of claim 1, wherein the multifilament yarn meets the following conditions: f is more than or equal to 12 and less than or equal to 72.

5. The fabric of claim 1, wherein the skin layer has a wale/inch of 30-60 and a course/inch of 30-70.

6. The fabric of claim 1, wherein the monofilaments comprising the multifilament comprise one or a combination of two or more of polyester fibers, polyester-nylon composite fibers, nylon fibers.

7. The fabric according to claim 6, wherein the polyester fiber is selected from one or a combination of two or more of polyethylene terephthalate, polybutylene terephthalate and polypropylene terephthalate.

8. The fabric of claim 7, wherein the polyester fiber is a bicomponent polyester or a monocomponent polyester.

9. The fabric according to any one of claims 1 to 8, wherein the fabric is a hollow layer fabric.

10. The fabric of claim 9, wherein the fabric comprises at least one skin layer and at least one bottom layer.

11. The fabric of claim 10, wherein the fabric comprises two skin layers and two bottom layers, or three skin layers and three bottom layers.

12. The fabric of any one of claims 1-8, 10-11, wherein the fabric is knitted on a double knit machine, the skin layer is knitted on a cylinder, the bottom layer is knitted on a dial, and the connecting layer is knitted on a dial cylinder.

13. The fabric of claim 9, wherein the fabric is knitted on a double knit machine, the skin layer is knitted on a cylinder, the bottom layer is knitted on a dial, and the connecting layer is knitted on a dial cylinder.

14. A method of making the fabric of any one of claims 1-13, comprising the steps of:

knitting with multifilament as a connecting layer to obtain grey cloth, wherein the multifilament is straightened and yarn length is controlled in a small control mode in the knitting process;

after the machine is started, the multifilament is elastically restored to form a connecting layer between the surface layer and the bottom layer, and simultaneously, the multifilament drives the coils in the surface layer and the bottom layer to shrink, so that the fabric is obtained.

15. The method according to claim 14, further comprising a step of subjecting the raw fabric to a pre-shrinking treatment and a sizing treatment.

16. The method of claim 15, wherein the pre-shrinking treatment comprises open width water washing pre-shrinking and/or in-cylinder pre-shrinking.

17. The method of manufacturing according to claim 15, wherein the sizing treatment meets the following requirements: the pre-shrinking back width is less than or equal to the final product width and less than or equal to the pre-shrinking back width multiplied by 1.08 percent.

18. The method according to claim 15, wherein the temperature of the pre-shrinking treatment is 80-135 ℃.

19. The method of claim 18, wherein the pre-shrinking treatment is performed at a soak temperature of 130 ℃.

20. The method according to claim 15, wherein the pre-shrinking treatment is performed for 30 minutes.

21. The method of claim 14, further comprising dyeing the gray fabric.