CN220116784U

CN220116784U - Warp knitting fabric capable of being stretched from four sides

Info

Publication number: CN220116784U
Application number: CN202321417436.1U
Authority: CN
Inventors: 罗莉莉; 汤化文; 郑春光
Original assignee: Fujian Honggang Textile Technology Co ltd
Current assignee: Fujian Honggang Textile Technology Co ltd
Priority date: 2023-06-06
Filing date: 2023-06-06
Publication date: 2023-12-01
Anticipated expiration: 2033-06-06

Abstract

The utility model relates to a four-side stretch warp knitting fabric, which comprises a fabric body, wherein the fabric body comprises a surface layer and a bottom layer, the fabric body is formed by interweaving 30-50 denier nylon yarns and 140-210 denier spandex yarns, each nylon yarn and each spandex yarn are sequentially and alternately laid on two adjacent knitting needles to form a warp-flat structure, the spandex yarns are knitted to form the surface layer, and the nylon yarns are knitted to form the bottom layer. The fabric disclosed by the utility model realizes consistent warp-wise, weft-wise and 45-degree tension, has the characteristics of high stiffness and smooth modulus, durability and difficult deformation, has soft and fine handfeel, good packaging property, sun protection, chlorine resistance and ventilation, and solves the problem that the existing four-side stretch warp-knitted fabric is difficult to have elasticity, strength and ventilation.

Description

Warp knitting fabric capable of being stretched from four sides

Technical Field

The utility model relates to the technical field of textile, in particular to a four-side stretch warp knitting fabric.

Background

With the advent of new varieties, new technologies, new spinning methods, new weaving methods and new finishing processes, the development of tetrahedral stretch fabrics has been increasing. At present, the four-side stretch fabric on the market mainly comprises NR knitted Roman cloth, woven core-spun spandex four-side stretch, nylon or terylene four-side stretch; NR knitted Roman cloth is double-sided cloth, is generally thicker, is woven by high count yarns, and has poor strength; the woven four-side elastic fabric has the problems of wrinkling, post-washing elastic loss and the like, particularly the fabric with high cotton content; nylon or terylene are stretched on four sides, the thickness is not enough in winter, and the nylon or terylene is worn in spring and summer and is hot; the four-side stretch fabric existing in the market at present has the problem that the elasticity, the strength and the air permeability are difficult to combine.

Therefore, it is necessary to provide a four-side stretch warp knitted fabric to solve the above technical problems.

Disclosure of Invention

The utility model aims to provide a four-side stretch warp knitted fabric, which can realize consistent warp, weft and 45-degree tension, has large stiff and smooth modulus, is durable and difficult to deform, has soft hand feeling, fine and smooth wrapping property and has the characteristics of sun protection, chlorine resistance and ventilation.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the four-side elastic warp knitting fabric comprises a fabric body, wherein the fabric body comprises a surface layer and a bottom layer, the fabric body is formed by interweaving 30-50 denier nylon yarns and 140-210 denier spandex yarns, each nylon yarn and each spandex yarn are sequentially and alternately laid on two adjacent knitting needles to form a warp-flat structure, the spandex yarns are woven to form the surface layer, and the nylon yarns are woven to form the bottom layer.

Further, the nylon yarn is full-dull nylon yarn with a linear density of 40 denier, and the spandex yarn has a linear density of 140 denier.

Further, the fabric body is formed by knitting by a single needle bar warp knitting machine, the single needle bar warp knitting machine is provided with a first guide bar GB1, a second guide bar GB2, a third guide bar GB3 and a fourth guide bar GB4, the second guide bar GB2 and the third guide bar GB3 are all of a warp knitting structure, and the first guide bar GB1 and the fourth guide bar GB4 are not used.

Furthermore, the number of the second guide bar GB2 is 1-0/1-2/, the pattern with a flat cloth cover is walked on the basis of 1-0/1-2/, the number of the third guide bar GB3 is 1-2/1-0//, the structure which is reversely symmetrical to the second guide bar GB2 is walked, and the threading modes of the second guide bar GB2 and the third guide bar GB3 are all full.

Further, the single needle bar warp knitting machine has a knitting needle density of 28 needles per inch.

Further, the gram weight of the finished product of the fabric body is 230-250g/m ² 。

The utility model has the beneficial effects that: the utility model provides a four-side stretch warp knitting fabric, which is formed by knitting full-dull nylon yarns and spandex yarns by using a single-needle bar warp knitting machine with four guide bars, adopts a warp knitting flat structure to reversely pad yarns, realizes consistent warp, weft and 45-degree tension by special design including but not limited to density, gram weight and special post finishing treatment, has the plain weave texture of organic fabric, has the characteristics of sun protection, chlorine resistance, shaping, stiffness, large modulus, good inclusion and ventilation, and solves the problem that the existing four-side stretch warp knitting fabric is difficult to have elasticity, strength and ventilation.

Drawings

FIG. 1 is a diagram of the fabric construction of the present utility model;

FIG. 2 is a front view of the fabric of the present utility model;

fig. 3 is a reverse side view of the fabric of the present utility model.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

Referring to fig. 1 to 3, the present utility model provides an embodiment: the four-side elastic warp knitting fabric comprises a fabric body, wherein the fabric body comprises a surface layer and a bottom layer, the fabric body is formed by interweaving 30-50 denier nylon yarns and 70-210 denier spandex yarns, each nylon yarn and each spandex yarn are sequentially and alternately laid on two adjacent knitting needles to form a warp-flat structure, the spandex yarns are woven to form the surface layer, and the nylon yarns are woven to form the bottom layer. The fabric adopts a warp flat structure, the loops are all in a closed form, each warp yarn is knitted by alternately and sequentially padding yarns on two adjacent knitting needles, and 2 courses are arranged in one complete structure. The cloth cover is smoother and more stable on the whole, and has the characteristics of stiffness, high elasticity, ventilation and the like. The fabric has the appearance of plain weave with woven fabric, good tensile property, smooth and soft hand feeling, and the affinity and the ductility of the fabric with the body meet the requirements of the four-side stretch swimsuit fabric.

With continued reference to fig. 1-3, in one embodiment of the present utility model, the nylon yarn is a full-dull nylon yarn having a linear density of 40 denier and the spandex yarn has a linear density of 140 denier.

With continued reference to fig. 1 to 3, in an embodiment of the present utility model, the fabric body is knitted by a single needle bar warp knitting machine, the single needle bar warp knitting machine is provided with a first guide bar GB1, a second guide bar GB2, a third guide bar GB3 and a fourth guide bar GB4, the second guide bar GB2 and the third guide bar GB3 are both of a warp knitting structure, and the first guide bar GB1 and the fourth guide bar GB4 are not used. In order to improve the effect of the fabric, the fabric is woven by nylon yarns and spandex yarns through a special weaving method of a Raschel 28-needle four-bar warp knitting machine. The extensibility of the warp knitted fabric is related to the number and the structure of the guide bars, and the warp knitted fabric obtained by the method has extensibility in the transverse direction and the longitudinal direction, has good dimensional stability and is not easy to break off.

With continued reference to fig. 1 to 3, in an embodiment of the present utility model, the number of the second guide bar GB2 is 1-0/1-2// and the pattern with a flat cloth surface is set on the basis of 1-0/1-2//, the number of the third guide bar GB3 is 1-2/1-0// and the pattern is set to be in a symmetrical structure opposite to the second guide bar GB2, and the threading manners of the second guide bar GB2 and the third guide bar GB3 are all full threading.

With continued reference to fig. 1-3, in an embodiment of the present utility model, the needle density of the single needle bar warp knitting machine is 28 needles per inch.

With continued reference to fig. 1-3, in one embodiment of the present utility model, the fabric body has a finished grammage of 230-250g/m ² . All the coils of the warp-flat structure have unidirectional ductility, and since the lead-in ductility and the lead-out ductility of the coils belong to one side of the coils, the coils incline towards the opposite direction of the extension line, and the inclination increases with the increase of the density of the knitted fabric, the consistency of the tensile force of warp direction, weft direction and 45 degrees can be realized by setting the corresponding density and gram weight.

Example 1:

1. warping yarn used for warp knitting:

1) Warping of nylon yarn:

warping machine model: karl Mayer DS 21/30NC-2, negative type yarn feeding; warping temperature: 25 ℃, warping humidity: 65%.

2) Warping of spandex filaments:

warping machine model: karl Mayer DSE-H21/30NC-2, positive yarn feeding; warping temperature: 24 ℃, warping humidity: 75%.

2. Weaving:

1) Weaving machine model: RSE 4-1 or other single needle bar warp knitting machines; number range: e28, the single needle bar warp knitting machine is provided with four guide bars, namely a first guide bar GB1, a second guide bar GB2, a third guide bar GB3 and a fourth guide bar GB4 in sequence.

2) Threading mode:

the second guide bar GB2 nylon yarn is fully worn, and the third guide bar GB3 spandex yarn is fully worn by adopting a coiled yarn.

3) The yarn used in the fabric:

40 denier nylon filaments, 140 denier spandex filaments.

4) Both nylon yarn and spandex yarn of the single needle bar warp knitting machine adopt warp-flat tissue structures.

5) Weaving:

the second guide bar GB2 takes the yarn padding number as 1-0/1-2// and walks out a pattern with a flat cloth cover on the basis of 1-0/1-2/;

the third guide bar GB3 takes the yarn padding number as 1-2/1-0//, is opposite to the face yarn and goes out of a structure symmetrical to GB 2;

the first guide bar GB1 and the fourth guide bar GB4 are not used.

3. And (3) post-finishing:

hydrophilic elastic softener SD-4625 is added in the post-finishing.

The warp knitted fabric manufactured according to the steps is 4 in wet rubbing fastness, 4 in perspiration fastness, 4 in water fastness, 4 in light fastness and 4 in seawater chlorine fastness, has soft, fine and elastic hand feeling as before after being used for a plurality of times, and has bright and difficult color fading. Defend the ultraviolet ray, protect the skin effectively, avoid sunburn and tan.

The tensile and recovery test results are shown in Table 1 below:

TABLE 1 test results of tensile and recovery values

Table 2 results of other performance tests of fabrics

As can be seen from tables 1 and 2, the fabric obtained by the method has consistent warp, weft and 45-degree tensile force, large modulus, body shaping, good wrapping property, good air permeability, pilling resistance, bursting resistance, yarn hooking resistance, good color fastness and sun protection and chlorine resistance.

The above description is only of the preferred embodiments of the present utility model, and should not be construed as limiting the utility model, but rather as covering all equivalent variations and modifications according to the appended claims.

Claims

1. A four-side stretch warp knitting fabric is characterized in that: the fabric comprises a fabric body, wherein the fabric body comprises a surface layer and a bottom layer, the fabric body is formed by interweaving 30-50 denier nylon yarns and 140-210 denier spandex yarns, each nylon yarn and each spandex yarn are sequentially and alternately laid on two adjacent knitting needles to form a warp flat structure, the spandex yarns are woven to form the surface layer, and the nylon yarns are woven to form the bottom layer.

2. The four-sided stretch warp knit fabric of claim 1, wherein: the nylon yarn is full-dull nylon yarn with a linear density of 40 denier and the spandex yarn with a linear density of 140 denier.

3. The four-sided stretch warp knit fabric of claim 1, wherein: the fabric body is formed by knitting by a single needle bar warp knitting machine, the single needle bar warp knitting machine is provided with a first guide bar GB1, a second guide bar GB2, a third guide bar GB3 and a fourth guide bar GB4, the second guide bar GB2 and the third guide bar GB3 are all of a warp knitting structure, and the first guide bar GB1 and the fourth guide bar GB4 are not used.

4. A four-sided stretch warp knit fabric according to claim 3, wherein: the number of the second guide bar GB2 is 1-0/1-2/, the pattern with a flat cloth cover is walked on the basis of 1-0/1-2/, the number of the third guide bar GB3 is 1-2/1-0/, the second guide bar GB2 and the third guide bar GB3 are walked in a structure which is reversely symmetrical to the second guide bar GB2, and the second guide bar GB2 and the third guide bar GB3 are fully worn in a threading mode.

5. A four-sided stretch warp knit fabric according to claim 3, wherein: the needle density of the single needle bar warp knitting machine is 28 needles per inch.

6. The four-sided stretch warp knit fabric of claim 1, wherein: the gram weight of the finished product of the fabric body is 230-250g/m ² 。