WO2023236285A1

WO2023236285A1 - Warp-knitted elastic fabric not sticking to skin

Info

Publication number: WO2023236285A1
Application number: PCT/CN2022/102707
Authority: WO
Inventors: 胡军岩; 陈长荣; 郝萌萌; 劳家源
Original assignee: 东莞超盈纺织有限公司
Priority date: 2022-06-07
Filing date: 2022-06-30
Publication date: 2023-12-14
Also published as: CN114892333A

Abstract

A warp-knitted elastic fabric not sticking to the skin, comprising a fabric body of a warp-knitted structure. The fabric body at least comprises low-bulkiness yarn Y1, high-bulkiness yarn Y2, and elastic yarn Y3; the low-bulkiness yarn Y1 and the high-bulkiness yarn Y2 are both located on the surface layer of the fabric body and arranged at intervals; the low-bulkiness yarn Y1 forms a low-bulkiness structure in a guide bar threading mode in the fabric body; the guide bar threading mode of the low-bulkiness yarn Y1 is ai threading and bi empty; the guide bar threading mode of the high-bulkiness yarn Y2 is mj empty and nj threading; threading; and the elastic yarn Y3 forms an elastic structure, and the low-bulkiness yarn Y1 and the high-bulkiness yarn Y2 form protrusion structures on a skin-attaching surface of the fabric body. According to the present application, the fabric of said structure does not stick to the skin, and has the functions of being good in air permeability, capable of absorbing moisture, quick to dry, and not prone to curling.

Description

Non-sticky tricot elastic fabric

Technical field

The present application relates to a textile fabric, and in particular to a non-sticky warp-knitted elastic fabric.

Background technique

Highly elastic fabrics have good recovery properties and are usually used as outdoor sports fabrics: good stretch fabrics continue to promote the convenience of outdoor activities, quickly and effectively protect the muscle power consumption during stretching, and the elasticity of the fabric keeps the clothing in sync with the rhythm of sports.

In the prior art, the current elastic fabric has a simple structure, insufficient resilience, and a single function. When worn in hot weather or during exercise, the sweat produced by the human body is not easy to evaporate, which affects physical health and cannot meet the needs of use.

For example, Chinese patent document CN209904152 discloses "a breathable high-elastic knitted fabric, including a knitted fabric main body and a second elastic layer. A knitted layer is provided in the middle of the knitted fabric main body, and the upper side of the knitted layer is bonded with a third elastic layer. An elastic layer, a first breathable layer is provided above the first elastic layer, and a polyester fiber layer is adhered to the top of the first breathable layer, the second elastic layer is adhered to the bottom of the knitted layer, and the second elastic layer A second breathable layer is provided below the second breathable layer, a sweat-absorbent layer is bonded below the second breathable layer, and a breathable mesh layer is woven inside the second breathable layer." Although the first elastic layer and the second elastic layer provided in this fabric enhance the elasticity of the main body of the knitted fabric, they are relatively tight and not breathable, so the sweat produced by the human body is not easy to evaporate. In order to improve the breathability, a multi-layer structure of a breathable layer, a polyester fiber layer and a sweat-absorbent layer is adhered to form a fitted fabric. The process is cumbersome, and there is also the problem of the fabric sticking to the body after sweating.

For example, Chinese patent document CN215970544 discloses "an elastic fabric with good resilience. The elastic fabric with good resilience includes a base layer, a breathable layer is provided on the top of the base layer, and an elastic layer is provided on the top of the breathable layer. , a sterilizing layer is provided on the top of the elastic layer, a protective layer is provided on the top of the sterilizing layer, and several transverse elastic strips and several longitudinal elastic strips are arranged inside the elastic layer." Similarly, this fabric is equipped with a breathable layer, a sterilizing layer and a protective layer based on the elastic layer, forming a SPACER structure; although the elasticity of the fabric is improved by the elastic layer, the multi-layer structure weakens the breathability of the fabric ; At the same time, sweat is absorbed through the sterilization layer. Although it can play a very good antibacterial and antibacterial role and prevent bacterial growth, the moisture in the sweat still stays in the fabric, making the fabric easy to stick to the body, causing discomfort when wearing it. comfort, thus failing to meet usage needs.

Therefore, there is an urgent need for a non-sticky warp-knitted elastic fabric that has good air permeability, is moisture-absorbent and quick-drying, and is not easy to curl.

Application content

The purpose of this application is to provide a non-sticky warp-knitted elastic fabric that is not only non-sticky, but also has the functions of good air permeability, moisture absorption, quick drying, and resistance to curling.

In order to achieve the above object, the present application provides a non-sticky warp-knitted elastic fabric, which includes a fabric body with a warp-knitted structure. The fabric body includes at least low-bulky yarn Y1, high-bulky yarn Y2 and Elastic yarn Y3, the low bulk yarn Y1, the high bulk yarn Y2 and the elastic yarn Y3 are woven in a card and threading manner to form the fabric body, the low bulk yarn Y1 and the high bulk yarn Y3 The low bulk yarns Y2 are all located on the surface of the fabric body and are arranged at intervals; the low bulk yarns Y1 are threaded through the bar in the fabric body to form a low bulk structure. The structure is that the low bulk yarn Y1 is pierced through a _i and empty b _i to form a basic unit and circulated to the full width. The expression of one basic unit through and empty is a _i b _i , 1≤a _i ≤50,1≤ b _i ≤ 50; where, a _i represents the threading yarn guide needle, b _i represents the empty yarn guide needle; the cycle unit consists of at least one basic unit and no more than 10 different basic units to form a cycle unit. Repeat along the width direction to the full width; the low bulk yarn Y2 is threaded through the bar in the fabric body to form a high bulk structure, and the high bulk structure is the high bulk yarn Y2. Empty m _j passes through n _j to form a basic unit and circulates to the full frame. The expression of one basic unit passing through n j is m _j n _j , 1≤m _j ≤50,1≤n _j ≤50; among them, m _j represents empty The yarn guide needle for threading, n _j represents the yarn guide needle for threading; the cycle unit consists of at least one basic unit and no more than 10 different basic units to form a cycle unit, which is repeated along the width direction to the full width; the elasticity The yarn Y3 is threaded through the combs in the fabric body to form an elastic structure, and the elastic structure is formed by the elastic yarn Y3 being pierced through the combs; the low bulk yarn Y1 and the The high-bulk yarns Y2 all form convex structures on the skin-contacting surface of the fabric body.

Compared with the prior art, the non-sticky warp-knitted elastic fabric of the present application includes a fabric body with a warp-knitted structure. The fabric body includes at least low bulk yarn Y1, high bulk yarn Y2 and elastic yarn Y3. kind of yarn, and the low-bulk yarn Y1 and the high-bulk yarn Y2 are located on the surface of the fabric body and are arranged at intervals; combined with the well-known: the higher the moisture content of the smooth surface, the smoother and smoother it will be. It is known from the existing technology that the stronger the skin adhesion force is; this application uses the characteristics of high-bulk yarn Y2 to absorb water faster than low-bulk yarn Y1, and combines the structure of the two arranged at intervals to effectively reduce the The moisture content of the low-bulk yarn Y1 reduces the skin-sticking force of the low-bulky yarn Y1 after being wetted, thereby making the application non-sticky. At the same time, the bulky and crimping properties of the high-bulky yarn Y2 are used to make the application non-sticky. Its contact with the skin is point-like contact, which makes the contact area small, further improving the non-stick performance and breathability of the present application. At the same time, this application also allows the fabric body of this application to absorb water from the skin through the high bulk yarn Y2, and transfer the water to the low bulk yarn Y1 through the capillary effect, and the water is transferred and diffused, thereby accelerating quick drying. ; The structure of this application in which the low-bulk yarn Y1 and the high-bulk yarn Y2 are arranged at intervals greatly improves the ability of moisture absorption and quick drying and also greatly reduces the skin stickiness effect, making the application have excellent non-toxic properties. Sticky performance; at the same time, the combination of low bulk yarn Y1, high bulk yarn Y2 and elastic yarn Y3 in this application can also form microscopic heights while ensuring the elasticity of the fabric body. The concave and convex spaces and more pores between yarns enable better air circulation and increase the breathability of the fabric. It can be seen that the non-sticky warp-knitted elastic fabric of the present application is not only non-sticky, but also has the functions of good air permeability, moisture absorption and quick drying, and is not easy to curl, so that the non-sticky warp-knitted elastic fabric of the present application has It has the characteristics of large opening, good recovery, and can be cut at will. It is dry and comfortable to wear and does not stick to the body. It keeps the human skin dry and comfortable at all times. It is highly practical and effective; it is very suitable for making clothes that come into contact with the skin, such as underwear, etc. T-shirts, trousers, shirts, etc. can meet people's needs for wearing comfort, functionality, and practicality. They have a wide range of applications and have good market prospects and economic and social benefits.

Preferably, the protruding structures of the non-sticky warp-knitted elastic fabric of the present application are in the form of points or lines. The point-like or linear convex structure not only effectively reduces the stickiness in contact with the skin, but also improves the air circulation performance. It also increases the breathability of the fabric, making it more comfortable and suitable to wear.

Preferably, the number ratio of the low-bulky yarn Y1 to the high-bulky yarn Y2 of the non-sticky warp-knitted elastic fabric of the present application is between 1:3-3:1, so The linear density ratio of the low bulk yarn Y1 to the high bulk yarn Y2 is between 0.5 and 3.5.

Preferably, the linear density ratio of the low bulk yarn Y1 and the high bulk yarn Y2 of the non-sticky warp-knitted elastic fabric of the present application is between 0.9-1.2, and the low bulk yarn Y2 The linear density of the yarn Y1 or the high-bulk yarn Y2 is 7-100 denier.

Preferably, the low bulk yarn Y1 of the non-sticky warp-knitted elastic fabric of the present application is FDY yarn, the high bulk yarn Y2 is DTY yarn, and the elastic yarn Y3 is ATY Yarn, the bulkiness of the FDY yarn, DTY yarn and ATY yarn is in order from low to high.

Preferably, the needle alignment method of the bar in the low-bulk structure of the non-sticky warp-knitted elastic fabric of the present application is the same as that in the high-loft structure, where a _i =m _j and b _i = _nj .

Preferably, the yarn numbers of the low-bulky yarn Y1 and the high-bulky yarn Y2 of the non-sticky warp-knitted elastic fabric of the present application are both 1-0/2-3// or 0- 1/2-1// or 1-0/1-2/2-3/2-1//, the yarn number of the elastic yarn Y3 is 0-2/3-1// or 1-0 /1-2// or 1-0/1-2/2-3/2-1//.

Preferably, the low bulk yarn Y1, high bulk yarn Y2 and elastic yarn Y3 of the non-sticky warp knitted elastic fabric of the present application run along each bar yarn in the fabric body. The coil is in one of a fully open structure, a fully closed structure, an open and a closed structure, or any combination.

Preferably, the fabric body of the non-sticky warp-knitted elastic fabric of the present application has a single-sided jacquard or double-sided jacquard structure.

Preferably, the bottom surface of the fabric body of the non-sticky warp-knitted elastic fabric of the present application has a suede structure.

Preferably, the low bulk yarn Y1 of the non-sticky warp-knitted elastic fabric of the present application has a chemical fiber structure, and the high bulk yarn Y2 has a short fiber structure.

Description of the drawings

Figure 1 is a trend chart of water dripping data within 30 minutes of the skin adhesion test in Example 1 of the present application.

Figure 2 is a schematic structural diagram of Embodiment 1 of the present application.

Figure 3 is a schematic structural diagram of Embodiment 2 of the present application.

Figure 4 is a schematic structural diagram of Embodiment 3 of the present application.

Figure 5 is a schematic structural diagram of Embodiment 4 of the present application.

Figure 6 is a schematic structural diagram of Embodiment 5 of the present application.

Figure 7 is a schematic structural diagram of Embodiment 6 of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to specific implementation examples and the accompanying drawings, and the technical solutions of the present application will be elucidated. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application. Embodiments of the present application will now be described with reference to the accompanying drawings, in which like element numbers represent similar elements.

The warp-knitted elastic fabric of the present application includes a fabric body with a warp-knitted structure. The fabric body includes at least a low-bulky yarn Y1, a high-bulky yarn Y2, and an elastic yarn Y3. The low-bulky yarn Y1 , high bulk yarn Y2 and elastic yarn Y3 are woven in a card and threading manner to form the fabric body, and the low bulk yarn Y1 and high bulk yarn Y2 are located on the surface of the fabric body and The two are arranged at intervals; the low bulk yarn Y1 is threaded through the bar in the fabric body to form a low bulk structure, and the low bulk structure is that the low bulk yarn Y1 is threaded a _i and empty b _i form a basic unit and circulate to the full frame. The expression of one basic unit wearing and emptying is a _i b _j , 1≤a _i ≤50,1≤b _i ≤50; among them, a _i represents the yarn threading The yarn guide needle, b _i represents the empty yarn guide needle; the cycle unit consists of at least one basic unit and no more than 10 different basic units to form a cycle unit, which is repeated along the width direction to the full width; the low bulkiness The yarn Y2 is threaded through the bar in the fabric body to form a high bulk structure. The high bulk structure is that the high bulk yarn Y2 is threaded through n _j with empty space m _j to form a basic unit and circulated until full. Width, one of the basic units is expressed as m _j n _j , 1≤m _j ≤50,1≤n _j ≤50; among them, m _j represents the yarn guide needle of the empty yarn, and n _j represents the yarn guide needle of the yarn. Yarn needle; the circulation unit consists of at least one basic unit and no more than 10 different basic units to form a circulation unit, which is repeated along the width direction to the full width; the elastic yarn Y3 is passed through the bar in the fabric body The elastic structure is formed by the elastic yarn Y3 in a comb-through manner; the low bulk yarn Y1 and the high bulk yarn Y2 are both formed on the fabric body. The skin-adhering surface forms a raised structure. The non-sticky warp-knitted elastic fabric of the present application includes a fabric body with a warp-knitted structure. The fabric body includes at least three types of yarns: low bulk yarn Y1, high bulk yarn Y2 and elastic yarn Y3, and the The low-bulk yarn Y1 and the high-bulk yarn Y2 are both located on the surface of the fabric body and are arranged at intervals; combined with the well-known: the higher the water content of the smooth surface, the smoother it will be and the stronger its adhesion to the skin. It is known from the existing technology that this application effectively reduces the water absorption of the low-bulky yarn Y1 by utilizing the characteristics of the high-bulky yarn Y2 to absorb water faster than the low-bulky yarn Y1, and combining the structure of the two arranged at intervals. Moisture content, thus reducing the skin-sticking force of the low-bulky yarn Y1 after wetting, thereby making the application non-sticky. At the same time, the bulky and curling properties of the high-bulky yarn Y2 are used to make it contact with the skin in a point-like manner. Contact, thereby making the contact area small, further improving the non-stick performance and breathability of the present application. At the same time, this application also allows the fabric body of this application to absorb water from the skin through the high bulk yarn Y2, and transfer the water to the low bulk yarn Y1 through the capillary effect, and the water is transferred and diffused, thereby accelerating quick drying. ; The structure of this application in which the low-bulk yarn Y1 and the high-bulk yarn Y2 are arranged at intervals greatly improves the ability of moisture absorption and quick drying and also greatly reduces the skin stickiness effect, making the application have excellent non-toxic properties. Sticky performance; at the same time, the combination of low bulk yarn Y1, high bulk yarn Y2 and elastic yarn Y3 in this application can ensure the elasticity of the fabric body by forming bulges. The structure also forms microscopic high and low concave and convex spaces and more pores between yarns, which enables better air circulation and increases the breathability of the fabric.

To sum up, it can be seen that the non-stick elastic warp knitted fabric of the present application is not only non-stick, but also has the functions of good air permeability, moisture absorption, quick drying and difficulty in curling, making the non-stick elastic warp knitted fabric of the present application The fabric has the characteristics of large opening, good recovery, and can be cut at will. It is dry and comfortable to wear and does not stick to the body. It keeps the human skin dry and comfortable at all times. It is highly practical and effective; it is very suitable for making clothes that come into contact with the skin, such as Underwear, T-shirts, trousers and shirts can meet people's needs for comfort, functionality and practicality. They have a wide range of applications and have good market prospects and economic and social benefits.

In order to further improve the non-sticky and breathable properties of the present application, preferably, the protruding structures of the non-sticky warp-knitted elastic fabric of the present application are in the form of points or lines. The point-like or linear convex structure not only effectively reduces the stickiness in contact with the skin, but also improves the air circulation performance. It also increases the breathability of the fabric, making it more comfortable and suitable to wear.

This application further improves the properties of non-stickiness, good air permeability, moisture absorption, quick drying and resistance to curling. Preferably, the number ratio of the low-bulky yarn Y1 to the high-bulky yarn Y2 of the non-sticky warp-knitted elastic fabric of the present application is between 1:3-3:1, and the The linear density ratio of the low bulk yarn Y1 to the high bulk yarn Y2 is between 0.5 and 3.5. More specifically, the linear density ratio of the low loft yarn Y1 and the high loft yarn Y2 of the non-sticky warp-knitted elastic fabric of the present application is between 0.9-1.2, and the low loft yarn Y2 The linear density of the yarn Y1 or the high-bulk yarn Y2 is 7-100 denier.

Preferably, the low bulk yarn Y1 of the non-sticky warp-knitted elastic fabric of the present application is an FDY yarn, the high bulk yarn Y2 is a DTY yarn, and the elastic yarn Y3 is an ATY yarn. thread, the bulkiness of the FDY yarn, DTY yarn and ATY yarn is in order from low to high. This application has a warp knitted fabric structure, and uses high bulk yarns (DTY yarns) and low bulk yarns (FDY yarns) to arrange yarns at intervals. Since the smoother surface has a higher water content, is flatter, and has stronger skin adhesion, DTY yarn absorbs water faster than FDY yarn, reducing the water content of FDY yarn, thereby reducing the moisture content of FDY yarn after wetting. Stickiness to skin;

The fluffiness and curl of DTY yarn make it point-like contact with the skin, with a small contact area; DTY yarn absorbs water from the skin and guides it to the FDY yarn through the capillary effect, transferring and diffusing it to accelerate quick drying. Therefore, the structure of FDY yarn spaced between DTY yarns is conducive to moisture absorption, quick drying and reducing skin stickiness. further,

FDY yarn and DTY yarn form very obvious microscopic high and low concave and convex spaces and more pores between yarns, which further improves the air circulation performance and increases the breathability of the fabric. More specifically, the low-loft structure of the non-sticky warp-knitted elastic fabric of the present application is the same as the needle-aligning method of the bar in the high-loft structure, where a _i =m _j and b _i = _nj . Among them: FDY is the abbreviation of Fully drawn yarn in English, and the Chinese translation is: fully drawn yarn; DTY is the abbreviation of Draw texturing yarn in English, and the Chinese translation is: stretch deformed yarn; ATY is the abbreviation of Air Textured Yarn in English, and the Chinese translation is : Air textured yarn.

Preferably, the low bulk yarn Y1, high bulk yarn Y2 and elastic yarn Y3 of the non-sticky warp knitted elastic fabric of the present application are routed along each bar yarn in the fabric body. The coil is in one of a fully open structure, a fully closed structure, an open and a closed structure, or any combination.

Preferably, the bottom surface of the fabric body of the non-sticky warp-knitted elastic fabric of the present application has a suede structure. The fleece effect is formed through the suede structure, thereby improving the touch feel of the fabric of the present invention. Progressively, the suede structure can be obtained through a raising process.

Preferably, the low-bulky yarn Y1 of the non-sticky warp-knitted elastic fabric of the present application is preferably a chemical fiber yarn; the high-bulky yarn Y2 of the present application is preferably a short fiber yarn.

In order to further describe the application and its implementation in detail, in the following the low loft yarn Y1, high loft yarn Y2 and elastic yarn Y3 will be replaced by symbols known to those skilled in the art. , that is: low bulk yarn Y1 is represented by yarn Y1, high bulk yarn Y2 is represented by yarn Y2, and elastic yarn Y3 is represented by yarn Y3. at the same time. In the following, PA6 refers to nylon 6; FD is the abbreviation of full dull in English, and the Chinese translation is: full matting; PU is the abbreviation of polyurethane in English, and the Chinese translation is: polyurethane.

The application for non-sticky warp knitted elastic fabric will be further described in detail with reference to Figures 1 to 7 and Tables 1 and 2:

Example 1: Using a 40-needle warp knitting machine, a _i =m _j =1 and b _i =n _j =1, yarn Y1 adopts PA6 25/34 FD FDY yarn, yarn threading mode 1, thread 1 empty; yarn Y2 uses PA6 25/34 FD DTY yarn, the threading method is 1 empty and 1 thread; 1 threading in 1 room, the structure is 1-0/2-3// (that is, yarn Y1 and yarn Y2 are padded digitally), The yarn feed amount is 1220mm/lack; the yarn Y3 is made of PU 20D, the pan head draft ratio is 100%, the structure is 0-2/3-1//, full wear, the yarn feed amount is 1300mm/lack, and knitted. After: washing - pre-ordering - dyeing - finishing, a series of post-processing processes, the final product specifications are: 170cm*130g/m ² .

Comparative Example 1: Using a 40-needle warp knitting machine, the yarn is made of PA6 25/34 FD FDY yarn, full wear, the structure is 1-0/2-3//, the yarn feed amount is 1220mm/lack; the elastic yarn is PU 20D, pan head draft ratio 100%, structure 0-2/3-1//, full wear, yarn feed amount 1300mm/lack, knitting. After: washing - pre-ordering - dyeing - finishing, a series of post-processing processes, the final product specifications are: 160cm*150g/m ² .

Comparative Example 2: Using a 40-needle warp knitting machine, the yarn is made of PA6 25/34 FD DTY yarn, full wear, the structure is 1-0/2-3//, the yarn feed amount is 1220mm/lack; the elastic yarn is PU 20D, pan head draft ratio 100%, structure 0-2/3-1//, full wear, yarn feed amount 1300mm/lack, knitting. After: washing - pre-ordering - dyeing - finishing, a series of post-processing processes, the final product specifications are: 160cm*145g/m ² .

The above fabrics are subjected to the same moisture absorption and quick-drying post-processing, and the above fabrics are tested for moisture absorption and quick-drying, one-way moisture conduction, breathability, and skin adhesion.

Sampling: For this experiment, from the 50-yard cloth roll, take 3 sections of front, middle and back sections, each with 0.5 yards of cloth, and take 3 parts. One part is used for the moisture absorption and quick-drying test, and the other part is used for the one-way moisture guide. For testing, 1 part is used for the breathability test and 1 part is used for the skin adhesion test.

Moisture absorption and quick-drying test: Using the JIS L1907 method, three pieces of fabrics from one sample were tested for moisture absorption and quick-drying. The moisture absorption and quick-drying values of the three pieces of fabrics were averaged as the moisture absorption and quick-drying values of the fabric. value.

Air permeability test: Using JIS L 1096 Method A, the air permeability test was performed on 3 pieces of fabrics from 1 sample, the left, middle and right sides of each piece of fabric, and the average value was calculated as the air permeability value result of each piece; 3 pieces of fabrics The air permeability values are then averaged as the final air permeability value of the fabric.

One-way Moisture Conductivity Test: AATCC 195 "Liquid Moisture Management Properties of Textile Fabrics" was measured. Three pieces of fabrics from one sample were tested for one-way moisture conductivity (OWTC). The OWTC values of the three pieces of fabrics were averaged as the OWTC value of the fabric.

According to the analysis in Table 1, the above fabrics using the same hygroscopic and quick-drying post-treatment have good hygroscopicity, and the quick-drying DTY is slightly worse than FDY. Example 1 and Comparative Example 2 have good hygroscopicity and quick-drying properties. In terms of one-way transmission performance, Comparative Example 2 performs best, which shows that DTY yarn has better one-way transmission performance than FDY yarn. In terms of air permeability, Example 1 performed better. Comprehensive evaluation shows that Example 1 is excellent in moisture absorption, quick drying and breathability.

The skin stickiness test is as follows:

Experimental equipment: Zwick tensile machine, 5N sensor, homemade friction coefficient meter, friction block (2×2cm smooth copper block without edges, contact surface is not covered)

Test sample: warp direction (L) & weft direction (W): 8×12cm, fold both ends of the 12cm direction inward by 1cm and then sew, so that the effective distance in the middle is 8cm, that is, 8×8cm.

Test Conditions:

Amount of dripping water: 0.2mL (Drip water to the center of the sample to allow it to spread. The total penetration time is 30s, then time it to 0min, and test every 5min.)

Estimated tension: 0.1N

Pre-tensioning speed: 50mm/min

Stretching speed: 200mm/min

Tensile displacement: 60mm

Operation method: Straighten the sewing thread (try to ensure no tension), fix it on the friction coefficient meter, test it directly in the dry state, and test it after dripping water (timer) in the wet state. The friction block starts to slide from the edge of the 8×8cm cloth piece, and the sliding distance value is the 30mm position, the 40mm position, and the 50mm position respectively.

This experiment simulates the water environment between the skin and clothing after the human body sweats. The friction force measured in the wet state is used to characterize the adhesive force between the skin and the fabric after sweating. The adhesive force f:f=f _L +f _w , f _L is the warp friction force, and f _w is the latitudinal friction force. This experiment mainly focuses on the friction of the skin-attached surface (Back Side). In the dry state, after dripping water for 0 minutes, after 5 minutes, after 10 minutes, after 15 minutes, after 20 minutes, after 25 minutes, after 30 minutes, the data of skin adhesion force are recorded, as shown in Table 2.

In order to facilitate observation and analysis, the dripping data within 30 minutes at the 50mm position in Table 2 is made into a trend chart, as shown in Figure 1.

It can be seen from Figure 1 that after dripping water, the adhesive force suddenly increases. As the water slowly penetrates from the skin-attached surface and spreads to the other side, the adhesive force of the skin-attached surface gradually decreases until it is completely dry and returns to the original state. The lowest stickiness state. Within 30 minutes after dripping water, the skin stickiness of Example 1 and Comparative Example 1 is lower than that of Comparative Example 1. Therefore, the skin stickiness of Example 1 in the wet state is smaller and the non-sticking effect is better.

In summary, it can be seen that the fabric was tested for moisture absorption and quick drying, air permeability, one-way moisture conduction performance, and skin adhesion performance. Example 1 was excellent in each performance and had good moisture absorption, quick drying, breathability, and non-sticky effects.

Embodiment 2: As shown in Figure 3, a _i =m _j =1 and b _i =n _j =1, the yarn Y1 is an FDY yarn, the yarn threading method is 1 and 1 is empty, and the yarn Y2 is a DTY yarn. Threading method 1 is empty and 1 is threaded, yarn Y1 and yarn Y2 have the same carding bar, the yarn number of yarn Y1 and yarn Y2 is 1-0/2-3//, yarn Y3 is spandex, yarn Fully worn, the yarn number is 1-0/1-2//.

Embodiment 3: As shown in Figure 4, yarn Y1 is FDY yarn, yarn threading method 1 is worn and 1 is empty, yarn Y2 is DTY yarn, yarn threading method is 1 is empty and 1 is worn, yarn Y1 and yarn Y2 are combed The needles are aligned with the same comb, the yarn numbers of yarn Y1 and yarn Y2 are 0-1/2-1//, yarn Y3 is spandex, the yarn is fully threaded, and the yarn numbers of yarn Y2 are 1-0/1-2// .

Embodiment 4: As shown in Figure 5, yarn Y1 is FDY yarn, yarn threading method 1 is worn and 1 is empty, yarn Y2 is DTY yarn, yarn threading method is 1 is empty and 1 is worn, yarn Y1 and yarn Y2 are combed The needles are aligned with the same comb, the padding numbers of yarn Y1 and yarn Y2 are 1-0/1-2/2-3/2-1//, yarn Y3 is spandex, the yarn is fully threaded, and the padding number is 1 -0/1-2/2-3/2-1//.

Embodiment 5: As shown in Figure 6, a _i =m _j =1 and b _i =n _j =2, the yarn Y1 is an FDY yarn, the yarn threading method is 1 and 2 is empty, and the yarn Y2 is a DTY yarn. Threading method 1 is empty and 2 is threaded, yarn Y1 and yarn Y2 have the same carding bar, the yarn numbers of yarn Y1 and yarn Y2 are 1-0/2-3//, yarn Y3 is spandex, yarn Fully worn, yarn padding numbers are 0-2/3-1//.

Embodiment 6: As shown in Figure 7, a _i =m _j =2 and b _i =n _j =3, yarn Y1 is FDY yarn, threading mode 2 and 3 empty, yarn Y2 is DTY yarn, Threading method 2, empty 3, yarn Y1 and yarn Y2 have the same carding needles, yarn Y1 and yarn Y2 padding numbers are 1-0/2-3//, yarn Y3 is spandex, yarn Fully worn, yarn padding numbers are 0-2/3-1//.

Embodiment 7: Based on Example 3, yarn Y1 is replaced with chemical fiber, yarn threading mode 1 is worn and 1 is empty, yarn Y2 is replaced with short fiber, yarn threading mode 1 is empty and 1 is threaded, yarn Y1 and yarn Y2 The combs have the same needle pairing, the yarn numbers of yarn Y1 and yarn Y2 are 0-1/2-1//, yarn Y3 is spandex, the yarn is fully threaded, and the yarn numbers of yarn Y2 are 1-0/1-2/ / (Same structure as Embodiment 3). By taking advantage of the characteristics of staple fiber yarns with many fibers and pores between fibers, Y2 staple fiber yarn absorbs water faster than Y1 chemical fiber, and combined with the structure of the two arranged at intervals, the moisture content of chemical fiber Y1 is effectively reduced. Thereby reducing the skin stickiness of chemical fiber Y1 after wetting. At the same time, the short fiber Y2 absorbs water from the skin and transfers the water to the chemical fiber Y1 through the capillary effect. The water is transferred and diffused, thereby accelerating drying. Moreover, when short fiber Y2 and chemical fiber Y1 are side by side or intertwined, the tightness is not as tight as that of chemical fiber, which makes the fabric have more pores between yarns, making the air circulation performance better and increasing the breathability of the fabric.

Example 8: On the basis of Example 6, yarn Y1 is replaced with chemical fiber, yarn threading method 2 is worn with 3 holes, yarn Y2 is replaced with short fiber, yarn threading method is 2 holes with 3 holes, yarn Y1 and yarn Y2 The combs have the same needle pair, the yarn numbers of yarn Y1 and yarn Y2 are 1-0/2-3//, yarn Y3 is spandex, the yarn is fully threaded, and the yarn numbers of yarn Y2 are 0-2/3-1/ /. (The structure is the same as that of Embodiment 6).

The yarn Y3 of the present application is preferably spandex or polyolefin.

In addition, the knitting methods involved in this application are all prior art, which use existing known methods to define the structure; the materials involved in this application are prior art and are well known to those of ordinary skill in the art. , which will not be explained in detail here.

It is obvious to those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, and that the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as illustrative and non-restrictive from any point of view, and the scope of the application is defined by the appended claims rather than the above description, and it is therefore intended that all claims falling within the claims All changes within the meaning and scope of the equivalent elements are included in this application. Any reference signs in the claims shall not be construed as limiting the claim in question. At the same time, what is disclosed above is only a preferred embodiment of the present application. Of course, it cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the patent scope of the present application still fall within the scope of the present application.

Claims

A non-sticky warp-knitted elastic fabric, which is characterized by including:

The fabric body has a warp knitted structure, and the fabric body includes at least low bulk yarn Y1, high bulk yarn Y2, and elastic yarn Y3. The low bulk yarn Y1, high bulk yarn Y2, and elastic yarn The yarn Y3 is woven in a bar-and-bar yarning manner to form the fabric body. The low-bulk yarn Y1 and the high-bulk yarn Y2 are both located on the surface of the fabric body and are arranged at intervals;

The low bulk yarn Y1 is threaded through the bar in the fabric body to form a low bulk structure. The low bulk structure is formed by the low bulk yarn Y1 passing through a i space b i to form a basic structure. The unit is circulated to the full width, and the expression of one basic unit passing through and empty is a i b i , 1≤a i ≤50, 1≤b i ≤50;

Among them, a i represents the threading yarn guide needle, b i represents the empty yarn guide needle;

The cyclic unit consists of at least one basic unit and no more than 10 different basic units to form a cyclic unit, which is repeated along the width direction to the full width;

The low-bulky yarn Y2 is threaded through the bar in the fabric body to form a high-bulky structure. The high-bulky structure is formed by the high-bulky yarn Y2 being pierced with holes m j and n j . The units are circulated to the full width, and the expression of one basic unit passing through and empty is m j n j , 1≤m j ≤50, 1≤n j ≤50;

Among them, m j represents the empty yarn guide needle, and n j represents the yarn guide needle for yarn threading;

The cyclic unit consists of at least one basic unit and no more than 10 different basic units to form a cyclic unit, which is repeated along the width direction to the full width;

The elastic yarn Y3 is threaded through the bar in the fabric body to form an elastic structure, and the elastic structure is formed by the elastic yarn Y3 being threaded through the bar;

The low-bulk yarn Y1 and the high-bulk yarn Y2 both form convex structures on the skin-contacting surface of the fabric body.
The non-sticky warp-knitted elastic fabric according to claim 1, wherein the protruding structures are in the shape of points or lines.
The non-sticky warp-knitted elastic fabric according to claim 1, wherein the number ratio of the low-bulky yarn Y1 to the high-bulky yarn Y2 is between 1:3-3:1. Between, the linear density ratio of the low bulk yarn Y1 and the high bulk yarn Y2 is between 0.5-3.5.
The non-sticky warp knitted elastic fabric according to claim 1 or 3, wherein the linear density ratio of the low bulk yarn Y1 to the high bulk yarn Y2 is between 0.9-1.2. , the linear density of the low bulk yarn Y1 or the high bulk yarn Y2 is 7-100 denier.
The non-sticky warp knitted elastic fabric according to claim 1, wherein the low bulk yarn Y1 is an FDY yarn, the high bulk yarn Y2 is a DTY yarn, and the elastic yarn Line Y3 is ATY yarn, and the bulkiness of the FDY yarn, DTY yarn and ATY yarn is in order from low to high.
The non-sticky warp-knitted elastic fabric according to claim 1, wherein the needle alignment method of the combs in the low bulk structure and the high bulk structure is the same, where a i = m j And b i =n j .
The non-sticky warp-knitted elastic fabric according to claim 1 or 6, characterized in that the yarn numbers of the low bulk yarn Y1 and the high bulk yarn Y2 are both 1-0/2- 3//or 0-1/2-1//or 1-0/1-2/2-3/2-1//, the yarn number of the elastic yarn Y3 is 0-2/3-1 //or 1-0/1-2//or 1-0/1-2/2-3/2-1//.
The non-sticky warp knitted elastic fabric according to claim 1, wherein the low bulk yarn Y1, the high bulk yarn Y2 and the elastic yarn Y3 are combed in each comb in the fabric body. The coils of the comb yarn are in one of a fully open structure, a fully closed structure, an open and a closed structure, or any combination.
The non-sticky warp-knitted elastic fabric according to claim 1, wherein the fabric body has a single-sided jacquard or double-sided jacquard structure.
The non-sticky warp-knitted elastic fabric according to claim 1, wherein the bottom surface of the fabric body has a suede structure.
The non-sticky warp-knitted elastic fabric according to claims 1-10, characterized in that the low bulk yarn Y1 is replaced by chemical fiber; the high bulk yarn Y2 is replaced by short fiber.