CN111607875B

CN111607875B - Water-absorbing quick-drying fabric

Info

Publication number: CN111607875B
Application number: CN201910136567.4A
Authority: CN
Inventors: 瞿文琳; 张晴
Original assignee: Toray Fibers and Textiles Research Laboratories China Co Ltd
Current assignee: Toray Fibers and Textiles Research Laboratories China Co Ltd
Priority date: 2019-02-25
Filing date: 2019-02-25
Publication date: 2023-02-03
Anticipated expiration: 2039-02-25
Also published as: CN111607875A

Abstract

The invention discloses a water-absorbing quick-drying fabric. The fabric is at least formed by yarn A and yarn B, the surface layer is formed by yarn A with the weight percent of more than 50%, the inner layer is formed by yarn B, and the twisting degree KA and KB of the yarn A and B meet the following relational expression: 0= < KB/KA <1, where KA, KB are yarn twist factors; KA >0. The fabric has excellent drying speed and is suitable for being made into T-shirts, trousers and the like.

Description

Water-absorbing quick-drying fabric

Technical Field

The invention relates to a water-absorbing quick-drying fabric, in particular to a water-absorbing quick-drying fabric capable of improving the drying speed.

Background

In recent years, people increasingly advocate healthy life style. When the sports are not divided into seasons, the sweat treatment after the exercise becomes an important subject. In the process of sports, the human body can reduce the temperature to a comfortable temperature through the perspiration mode, however, when the human body sweats in a large amount, the clothes can not only be adhered to the human body, but also the body surface temperature is reduced after the human body sweats, the stuffy feeling is generated, in addition, the human body is very easy to catch a cold, and the wearing comfort is greatly reduced.

At present, there are many researches on the water absorption and sweat releasing problems of fabrics, for example, patent document CN105619909B discloses a moisture absorption and quick-drying fabric, the surface layer of which is in a bird eye structure and is composed of hydrophilic yarns; the bottom layer is unsmooth interlamellar structure or changes pearl ground structure, constitute by ordinary yarn or water repellent yarn, link together surface course and bottom layer through the high shrinkage yarn of boiling water shrinkage factor between 30% ~ 50%, and there is the fibre number difference between surface course yarn and the bottom layer yarn, the problem that the clothing is on-stick after the sweat has been improved well, however, because the high shrinkage yarn that connects the yarn use, the surface fabric is more compact, is unfavorable for the quick conduction of moisture, and sweat deposits easily between two-layer, drying speed receives the influence.

For another example, patent document CN106835462A discloses an elastic water-absorbing quick-drying knitted fabric, in which the back layer contains at least 50 wt% polyester elastic fibers, and at least 1 path of the back layer in one weave cycle is composed of parts a and B which are different in weaving action, so as to reduce the arrangement regularity of stitches, increase the sweat-guiding passage of the back layer, and improve the sweat-guiding performance of the back layer.

For example, patent document CN102162168A discloses a twisted filament knitted fabric and a method for producing the same, in which a yarn obtained by twisting a long fiber having a fineness of 20 to 350D (a twisting coefficient K of 5000 to 25000) is subjected to a texturing treatment and a weight reduction treatment to obtain a fabric having excellent elasticity, barrier properties, dry and fluffy feeling, and a drape feeling, but such a fabric has no capillary effect, and has problems of slow moisture conduction, poor diffusion properties, poor quick-drying properties, and the like.

Disclosure of Invention

In view of the above problems, the present invention aims to provide a water-absorbing quick-drying fabric having a high drying speed.

The technical solution of the invention is as follows:

the water-absorbing and quick-drying fabric at least comprises yarns A and B, wherein the surface layer is formed by more than 50 weight percent of the yarns A, the inner layer is formed by the yarns B, and the twisting degree KA and KB of the yarns A and B meet the following relational expression:

0=<KB/KA<1

wherein KA and KB are yarn twist factors; KA >0.

The fabric provided by the invention is simple in production process and low in cost. The capillary effect is enhanced through the twisting degree difference of the surface and the inner yarns, the distance between the coils after twisting is increased, the moisture diffusion passage is widened, the moisture evaporation rate is increased, and the purpose of quick drying is achieved.

Detailed Description

The water-absorbing quick-drying fabric comprises a surface layer and an inner layer, wherein the inner layer can absorb water (sweat and the like), then conducts the water to the surface layer, and quickly diffuses and disperses on the surface layer, and the structure can be realized by knitting or weaving, such as single-side knitting, double-side knitting, satin knitting and the like.

The water-absorbing quick-drying fabric at least comprises yarns A and B, wherein the surface layer is formed by more than 50 weight percent of the yarns A, the inner layer is formed by the yarns B, and the twisting degree KA and KB of the yarns A and B meet the following relational expression:

0= < KB/KA <1, where KA, KB are yarn twist factors; KA >0.

The twist factor is calculated by the formula:

twist multiplier = twist (twist/meter)/100 × fineness ^1/2 （dtex）。

The process of water evaporation: the first step is as follows: sweat guiding, and the second step: diffusion, and the third step: and (5) drying. When KB/KA is less than 1, a gap difference exists between single fibers of the surface layer and the inner layer, a capillary effect is generated, the moisture conductivity is enhanced, and after the surface layer yarn A is twisted, the yarn becomes thin under the same condition, the space between adjacent coils becomes wide, the diffusion area of moisture on the surface is increased, the contact area of the moisture and air is increased, the moisture evaporation speed is accelerated, and the drying speed of the fabric is increased. When KB/KA > =1, capillary effect cannot be generated between the surface layer and the inner layer, moisture is not easy to conduct from the inner layer to the surface, and the drying speed of the fabric is low.

In the present invention, the content of the surface layer yarn a also affects the drying speed of the fabric, and if the content thereof in the surface layer is less than 50% by weight, the proportion of the yarn having a difference in single fiber gap is too small, the moisture conduction speed is slow, the diffusion area of moisture on the surface is reduced, and the drying speed of the fabric is slow.

In the present invention, the ratio (ratio) of the fineness of the single fiber of the surface layer to the fineness of the single fiber of the back layer is preferably less than 1. In this way, the gaps between the surface layer yarn single fibers are smaller than those of the inner layer yarn, so that capillary effect can be generated, moisture is easy to conduct and diffuse from the inner surface to the surface, and the drying speed is high.

In the present invention, the twist degree KA of the surface layer yarn a is preferably 20 to 200. When KA is less than 20, the twist is small and it is not easy to cover the yarns of the inner layer. When the KA is more than 200, the twist is high, gaps among single fibers are small to the utmost extent, almost no gaps exist, the capillary effect tends to be reduced, and the hand feeling of the fabric tends to be hard. In the present invention, KA is more preferably 30 to 100.

In the present invention, the twist degree KB of the inner yarn B is preferably 0 to 30. When the yarn B is not twisted, the gap between the single fibers is the largest, which is most beneficial to the capillary effect of the surface layer and the inner layer; when KB is greater than 30, the degree of twisting becomes large, the gap between the single fibers of the inner yarn becomes small, and the moisture conduction velocity tends to decrease. KB is more preferably 0 to 7, and even more preferably 0 (i.e., not twisted).

In the present invention, the fiber material of the yarn a and the yarn B is not particularly limited. The yarn A is preferably polyester fiber or polyamide fiber, and the yarn B is preferably one or more of polyester fiber, polyamide fiber and viscose fiber. In consideration of dyeing homochromy and processing cost, the yarn A and the yarn B are preferably polyester fibers, and the fabric is subjected to treatment by water-absorbent resin in a bath to endow the fabric with moisture absorption performance. The water absorbent resin used herein is preferably of polyether type.

In the present invention, the form of yarn a and yarn B is not particularly limited, but yarn a is preferably Fully Drawn Yarn (FDY) and yarn B is preferably false twisted yarn (DTY). Because FDY has no interlacing, single fibers are arranged in order and are used as the yarn A, and after twisting, the yarn A has a regular diffusion path, which is beneficial to the rapid conduction of moisture on the surface and improves the drying speed. Meanwhile, the DTY is adopted as the inner layer, and because the DTY has a crimp state, gaps among single fibers are small, so that moisture can be absorbed quickly and conducted to the surface.

In the invention, considering the gram weight of the fabric, the fineness of the surface layer yarn is preferably 55 to 220dtex, and the F number is preferably 72 to 288f; the fineness of the inner layer yarn is 33-156dtex, and the F number is 12-96 f.

The larger the surface water retention rate of the fabric is, the larger the surface diffusion area is, which shows that the faster the water is conducted from the inner layer to the surface layer is, and the better the dryness of the fabric is. In the present invention, it is preferable that the surface diffusion area is 15cm ² Above, more preferably greater than 20cm ² (ii) a The residual moisture content in 30 minutes is preferably 30% or less, more preferably less than 15%.

The knitted fabric can be used for manufacturing T-shirts and the like.

The physical property parameters according to the present invention were measured and obtained by the following methods.

(1) Surface diffusion area

Cutting 3 pieces of cloth sample of 10cm to 10cm, and humidifying for 4 hours at the temperature of 20 ℃ and the humidity of 65%; then 0.1 ml of ink (ink) is sucked by a pipette and dropped on a glass plate, the back surface of the sample cloth is downward and covered on the ink, and after 3 minutes, the diffusion area (1 position after decimal point retention) of the ink on the surface layer of the sample cloth is respectively measured by an area measuring instrument.

The surface diffusion areas of 3 sample cloths were continuously measured, and the average value was taken as the surface diffusion area of the present invention.

(2) Residual moisture percentage

Cutting 3 pieces of cloth sample of 10cm to 10cm, respectively weighing the weight (W) of the fabric, and humidifying for 4 hours in an environment with the temperature of 20 ℃ and the humidity of 65%; then 0.3 ml of water is absorbed by a pipette and dropped on the fabric, the weight (W0) is weighed, and the fabric is placed in an automatic weighing machine to read the change of the weight (Wt) every 5 minutes, and the residual moisture rate is calculated.

Residual water fraction (%) = (Wt-W)/(W0-W) } 100.

(3) Comprehensive evaluation of quick drying Properties

Wherein ^* : this number is not included.

The present invention will be further described with reference to examples and comparative examples.

Example 1

On a 32G single-face circular knitting machine, 84dtex-96 f-polyester FDY with the twist of 500 twists/m is selected as yarn A, 56dtex-36 f-polyester DTY without twisting is selected as yarn B for knitting, so as to obtain gray fabric with the yarn A content of 100 wt% in the surface layer, and then the fabric is subjected to pretreatment processing (scouring agent 1G/L and temperature 95 ℃), dyeing (disperse dye, 130 ℃ for 30 min), water-absorbent resin treatment in a bath during dyeing, and finally finishing and shaping (160 ℃) to obtain the fabric. Specifically, the results are shown in Table 1.

Example 2

84dtex-96 f-polyester FDY with the twist of 1500 twists/m is selected as the yarn A, and the fabric is obtained in the same way as in the example 1. Specifically, the results are shown in Table 1.

Example 3

56dtex-36 f-polyester DTY with the twist of 300 twists/m is selected as the yarn B, and the fabric is obtained in the same way as in the example 1. Specifically, the results are shown in Table 1.

Example 4

56dtex-36 f-polyester DTY with the twist of 200 twists/m is selected as the yarn B, and the fabric is obtained in the same way as in the example 2. The details are shown in Table 1.

Example 5

56dtex-36 f-polyester FDY with the twist of 1500 twists/m is selected as the yarn A, 44dtex-24 f-polyester DTY with the twist of 100 twists/m is selected as the yarn B for weaving, and the grey cloth with the yarn A content of 100 wt% in the surface layer is obtained, and the fabric is obtained by the same way as in the example 1. The details are shown in Table 1.

Example 6

56dtex-36 f-polyester FDY with the twist of 500 twists/m is selected as the yarn A, 44dtex-24 f-polyester DTY with the twist of 400 twists/m is selected as the yarn B for weaving, so as to obtain grey cloth with the yarn A content of 100 wt% in the surface layer, and the rest is the same as the example 1, so as to obtain the fabric. The details are shown in Table 1.

Example 7

84dtex-72 f-polyester FDY with the twist of 500 twist/m is selected as the yarn A for the warp yarn, 56dtex-36 f-polyester DTY without twisting of the weft yarn is selected as the yarn B for weaving, so as to obtain the grey cloth with the yarn A content of 67 weight percent in the surface layer, and the fabric is obtained by the same way as the example 1. The details are shown in Table 1.

Example 8

84dtex-96 f-polyester FDY with the twist of 1500 twists/m is selected as the yarn A, 56dtex-24 f-viscose FDY without twisting is selected as the yarn B for weaving, and the fabric is obtained by the same way as in the embodiment 1. The details are shown in Table 1.

Example 9

84dtex-96 f-polyester FDY with the twist of 2500 twists/m is selected as the yarn A, and the fabric is obtained by the same method as the example 1. The details are shown in Table 1.

Example 10

The fabric of the invention is obtained by selecting 84dtex-72 f-polyester FDY with 500 twist/m as yarn A and 56dtex-48 f-polyester DTY without twisting as yarn B for weaving in the same way as the example 1. The details are shown in Table 1.

Example 11

84dtex-96 f-polyester FDY with the twist of 500 twists/m is selected as the yarn A, 56dtex-36 f-polyester DTY with the twist of 500 twists/m is selected as the yarn B for weaving, and the fabric is obtained by the same way as the example 1. The details are shown in Table 1.

Example 12

84dtex-96 f-polyester DTY with the twist of 500 twists/m is selected as the yarn A, and the fabric is obtained in the same way as in the example 1. Specifically, the results are shown in Table 1.

Comparative example 1

Yarn a was not twisted, and the same procedure as in example 1 was repeated to obtain a fabric. Specifically, the results are shown in Table 1.

Comparative example 2

The same process as in example 1 was repeated except that 84dtex-96 f-polyester FDY with 500 twists/m twist was used as yarn A and 56dtex-36 f-polyester DTY with 1000 twists/m twist was used as yarn B to obtain a fabric. Specifically, the results are shown in Table 1.

Comparative example 3

The same procedure as in example 8 was repeated except that the yarn a content in the surface layer was 35% by weight, to obtain a fabric. Specifically, the results are shown in Table 1.

In the above table, the first and second sheets,

(1) From example 1 and example 3, it can be seen that under the same conditions, the surface diffusion area of the fabric with KB/KA of 0 is larger than that of the fabric with KB/KA of 0.48, the residual moisture rate in 30 minutes is smaller than that of the fabric with KB/KA of 0.48, i.e. the quick-drying property (drying speed) of the fabric is better than that of the fabric with KB/KA of 0.48.

(2) From example 3 and example 11, it can be seen that under the same conditions, compared with the fabric with KB of 22.4, the surface diffusion area of the former is slightly larger than that of the latter, and the residual moisture rate in 30 minutes is smaller than that of the latter, i.e. the quick-drying property (drying speed) of the former is better than that of the latter.

(3) It is understood from examples 1 and 10 that, under the same conditions, the surface diffusion area of the fabric having the fineness ratio of 0.56 on the front and back sides is larger than that of the fabric having the fineness ratio of 1 on the front and back sides, and the residual moisture percentage in 30 minutes is smaller than that of the fabric on the back side, i.e., the quick-drying property (drying speed) of the fabric is better than that of the fabric on the back side.

(4) As can be seen from comparative example 1 and example 1, in the case of the fabric having KA of 0, the surface diffusion area of the former is significantly smaller than that of the latter, and the residual moisture percentage at 30 minutes is also significantly larger than that of the latter, i.e., the former is inferior in quick-drying property (low drying rate) as compared with the fabric having KA of 45.8 under the same conditions.

(5) From comparative example 2 and example 11, it is seen that under the same conditions, the surface diffusion area of the former is smaller than that of the latter in the case of the fabric having a KB/KA of 1.63, and the residual moisture rate at 30 minutes is significantly larger than that of the latter, i.e., the former is inferior in quick-drying property (low drying rate) as compared with the fabric having a KB/KA of 0.82.

(6) As can be seen from comparative example 3 and example 8, in the case of the same conditions, the surface diffusion area of the fabric having a yarn a content of 35 wt% in the surface layer was smaller than that of the fabric having a yarn a content of 100 wt% in the surface layer, and the residual moisture percentage in 30 minutes was significantly larger than that of the fabric having a content of 30 minutes, i.e., the quick-drying property of the fabric was inferior (the drying rate was slow).

Claims

1. The water-absorbing quick-drying fabric comprises a surface layer and an inner layer, and is characterized in that: the fabric is at least formed by yarn A and yarn B, the surface layer is formed by yarn A with the weight percent of more than 50%, the inner layer is formed by yarn B, and the twisting degree KA and KB of the yarn A and B meet the following relational expression:

0=<KB/KA<1、

wherein KA and KB are yarn twist factors; KA is 20 to 200;

the yarn A is polyester fiber or polyamide fiber, and the yarn B is one or more of polyester fiber, polyamide fiber and viscose fiber; the yarn A is fully drawn yarn, and the yarn B is false-twist textured yarn.

2. The water-absorbing quick-drying fabric as claimed in claim 1, which is characterized in that: the fineness ratio of the single fibers of the surface layer to the single fibers of the inner layer is less than 1.

3. The water-absorbing quick-drying fabric as claimed in claim 1 or 2, which is characterized in that: the KB is 0 to 30.