CN113249850B

CN113249850B - Application process of water-soluble yarn on warp knitting machine and knitted product thereof

Info

Publication number: CN113249850B
Application number: CN202110518932.5A
Authority: CN
Inventors: 徐天雨; 卓丽琼; 杨德华; 林亚妹; 邓文亮; 赖文钦; 姚绮锋
Original assignee: Fujian Huafeng New Material Co ltd
Current assignee: Fujian Huafeng New Material Co ltd
Priority date: 2021-05-12
Filing date: 2021-05-12
Publication date: 2023-03-28
Anticipated expiration: 2041-05-12
Also published as: CN113249850A

Abstract

The invention belongs to the technical field of spinning, and particularly relates to an application process of long-fiber water-soluble yarns on a warp knitting machine and a knitting product thereof. The invention fills the technical blank of the combination application of the water-soluble yarn and the warp knitting machine, and solves the problems of unclear coils, multiple variegated colors, rough velvet feeling and the like of other production stereoscopic concave-convex velvet feeling cloth covers. The water-soluble yarn and the double-needle-bed warp knitting machine are matched technically to weave the fabric with the velvet feeling, the velvet core and the strong concave-convex stereoscopic impression.

Description

Application process of water-soluble yarn on warp knitting machine and knitted product thereof

Technical Field

The invention belongs to the technical field of textiles, and particularly relates to an application process of water-soluble yarns on a warp knitting machine and a knitted product thereof.

Background

The water-soluble yarn is yarn which can be dissolved in water as the name implies, particularly yarn which can be completely dissolved in hot water and is a soluble yarn spun by vinylon staple fibers through ring spinning. The water-soluble yarn has good mechanical properties (strength, plasticity, hardness, impact toughness, multiple impact resistance, fatigue limit and the like); the weather resistance is good: next to acrylon, the strength of all fibers slightly decreased after long-term exposure. The moisture absorption is superior to that of vinylon short fibers, the moisture regain is 5-6% in a standard state, and the spinning performance is good; has natural biodegradability: the water soluble fiber can be naturally biodegraded or rapidly degraded in activated sludge after being dissolved in water, and does not produce any pollution to the environment.

The water-soluble yarn is mainly used for the following purposes: (1) The water-soluble non-woven fabric is used as a raw material of the water-soluble non-woven fabric to produce the water-soluble non-woven fabric and used as embroidery base fabric to enable the machine embroidery lace to generate a hand embroidery style; the disposable garment is used as disposable garments in special industries, and meets the requirements of industrial sanitation and environmental protection; as a water-soluble packaging material. (2) The method is used for producing water-soluble spun yarns, water-soluble fibers are removed in the dyeing and finishing process after the water-soluble yarns are interwoven with other yarns, and deep-processed fabrics with hollowed warps and wefts, hollowed jacquard patterns, thin type, softness, bulkiness and the like can be obtained. (3) The high-grade pure wool fabric is used as a companion spinning fiber, is blended with wool (or wool tops) with low count, is spun and woven into grey cloth, and then water-soluble vinylon fiber is removed in the post-finishing process, so that the high-grade pure wool fabric with high count, light weight, fluffiness and softness is prepared. The water-soluble fiber blending technology can also increase the yarn strength, improve the weaving efficiency and enlarge the design range of the yarn and the fabric. The knitting can be used for producing: bovine omasum, honeycomb cloth, and the like. (4) The water-soluble yarn can be plied with cotton yarn to produce untwisted yarn for producing untwisted towels and the like. (5) The blend is blended with low-strength fibers such as cashmere and the like, and the cashmere spinning performance is improved.

The traditional water-soluble yarn is mostly applied to a weft knitting machine, a lace machine, a rapier loom or a shuttle loom, for example, a hole or edge cutting effect is made on the lace machine, a hollowed-out jacquard corduroy effect is made on the rapier loom (Chinese patent CN 104963189B), an elastic chiffon fabric is made on the shuttle loom (Chinese patent CN 104695103B), and most of the adopted water-soluble yarn is short fiber water-soluble yarn. The invention Chinese patent CN110656423B provides a woven fabric with concave-convex stereoscopic impression, which is characterized in that slub yarns and section-color water-soluble yarns are respectively manufactured, then the slub yarns and the section-color water-soluble yarns are subjected to doubling, plying and twisting on a doubling machine and a two-for-one twister to form slub section-color water-soluble yarns, finally the bamboo section-color water-soluble yarns are woven into the concave-convex stereoscopic woven fabric on a loom through 2/1 twill weave, then water-soluble fibers in the fabric are dissolved after post-finishing and water washing at 60 ℃, and section colors in the dissolved section-color water-soluble yarns are superposed on the slub yarns to form the woven fabric with concave-convex stereoscopic impression.

In view of high cost of water-soluble yarns, large usage amount of the water-soluble yarns and relatively low production efficiency in the knitting process, the cloth cover effect which can be knitted by each machine is single, and a brand-new realization process and method for producing the fabric with strong downy feeling, downy core and concave-convex stereoscopic impression based on the water-soluble yarns on a creel warp knitting machine are urgently needed to be developed so as to produce the knitted product with richer cloth cover effect at lower cost.

Disclosure of Invention

In view of the above technical problems in the background art, it is desirable to provide an application process of water-soluble yarns on a warp knitting machine and a knitted product thereof, wherein the application process of the water-soluble yarns on the warp knitting machine meets the characteristics of simple process, easy popularization, small water-soluble yarn consumption and high production efficiency. Correspondingly, the application process can be used for obtaining knitting products with different cloth cover effects, such as jacquard/perspective jacquard fabrics with velvet feeling, velvet cores and strong concave-convex stereoscopic impression, enriching the application process of water-soluble yarns on different textile machines and reducing the production cost of related knitting products.

To achieve the above object, in a first aspect of the present invention, the inventor provides a process for applying water-soluble yarns to a warp knitting machine, which is a jacquard double needle bar warp knitting machine using single jacquard plus 6 guide bars, comprising:

weaving by adopting water-soluble yarn in the front needle bed of the double needle beds or weaving by adopting the water-soluble yarn and the creel yarn B together, wherein the water-soluble yarn is used for opening a latch to participate in the weaving process so as to ensure that no missed stitches are generated;

weaving the back needle bed of the double needle beds by adopting a creel yarn A and a creel yarn B; and

and jacquard is carried out between the front needle bed and the back needle bed of the double needle beds by adopting a creel yarn A and a creel yarn B.

The traditional fabric with the velvet core and the concave-convex effect is manufactured by combining water-soluble yarns, particularly short fiber water-soluble yarns, with a weft knitting machine and the like. The creel warp knitting machine adopted by the invention is combined with the water-soluble yarn for knitting, so that the water-soluble yarn can ensure that the latch of the latch needle can be opened so as to ensure that the water-soluble yarn participates in knitting and no missed stitches are generated in the fabric knitting process. According to the process, the water-soluble yarn or the water-soluble yarn and the creel yarn B are woven together in the front needle bed, the water-soluble yarn is fully dissolved due to the high temperature (50-60 ℃) action of water in subsequent dyeing and finishing procedures and the like, and the warp knitting knitted fabric can generate cloth cover effects of various combined forms such as suede, hollow, concave-convex, jacquard and the like. The water-soluble yarns adopted by the invention comprise short-fiber water-soluble yarns and long-fiber water-soluble yarns, and most preferably, the long-fiber water-soluble yarns with higher strength are selected. The creel yarn a and the creel yarn B according to the present invention may be, for example, but not limited to, a yarn made of PBT, POY, CDP and/or transparent fishing thread, and the common yarns are distinguished by the creel yarn a and the creel yarn B. When the transparent fishing thread is used, it can be understood that the transparent or semitransparent jacquard, velvet and rugged knitwear can be manufactured by adopting the application process of the invention.

As a preferred embodiment of the present invention, the single jacquard bar of the single jacquard plus 6 bars is divided into two half jacquard bars JB1.1 and JB1.2, of which 6 bars L1, L2 and L3 are arranged in a position close to the front needle bed, L4 and L5 are arranged in a position close to the rear needle bed, and the jacquard bars JB1.1 and JB1.2 are arranged in sequence between the L3 and L4. In a preferred implementation mode of the invention, the single jacquard guide bar is divided into two half jacquard guide bars JB1.1 and JB1.2 for use, and the jacquard weave can be knitted in the front and back needle beds, and a PUFF structure is formed between the inner surface and the outer surface formed by the front and back needle beds.

As a further preferred embodiment of the invention, the L1 and the L2 both penetrate water-soluble yarn or composite yarn of water-soluble yarn and creel yarn B, and the yarn penetrating modes are one-through one-empty; and the L3 penetrates into the creel yarn A or the creel yarn B in a full penetration mode. According to the invention, the L1 and L2 penetrate into the water-soluble yarn or the water-soluble yarn and creel yarn B composite yarn to weave the surface layer with plain weave and/or mesh weave on the front needle bed, the width and stability of the whole cloth can be kept in the weaving process, the surface layer area formed by the water-soluble yarn is fully dissolved in the dyeing and finishing process after weaving is completed, the velvet feeling or the concave-convex cloth cover with the preset effect is obtained, and the phenomena of missing stitches and missing stitches cannot be generated in the process of producing fluffy velvet feeling and concave-convex wavy cloth cover products by the warp knitting machine.

Furthermore, the jacquard guide bars JB1.1 and JB1.2 respectively penetrate the creel yarn A and the creel yarn B in a threading-to-empty manner. According to the jacquard guide bars JB1.1 and JB1.2, the jacquard action of the front and back needle beds forms the effect and the position of 'velvet' or 'convex' in the velvet feeling or concave-convex feeling of the final product, so that the material of the penetrated yarn cannot be water-soluble yarn. But may be other different common yarn materials with specific colors and desired raised presentation.

Further, the L4 and the L5 penetrate into the creel yarn A and/or the creel yarn B respectively in a full penetration mode. The L4 and L5 do knitting movement on the back needle bed to form the base layer of the 'velvet' or 'convex' part of the final product, therefore, water-soluble yarn material can not be adopted, and common yarns with relevant performance can be adopted according to actual requirements, including but not limited to fishing line, POY, DTY, CDP and the like.

As a preferred embodiment of the present invention, the L3 and L4 weave diagrams both include transition portions identical to the weave diagrams of the jacquard bars JB1.1 and JB 1.2. In consideration of the arrangement of the guide bars and the continuity of the knitting action, the technical structure knitting number of the L3 is the same as that of the jacquard guide bar JB1.1, and the technical structure knitting number of the L4 is the same as that of the jacquard guide bar JB1.2, so that the cloth cover effect of the knitted product is consistent, and the 'down' or 'convex' position is better strengthened and fixed.

In a second aspect of the invention, the inventors provide a knitted product produced using the application process of the first aspect of the invention. The knitted product produced by the application process of the first aspect of the invention can present velvet feeling and concave-convex effect of different patterns according to different weaving processes, so that the knitted product of the second aspect of the invention comprises a single-layer velvet core fabric, a concave-convex jacquard fabric and a concave-convex jacquard perspective fabric.

Different from the prior art, the technical scheme at least has the following beneficial effects:

the technical scheme of the invention fills the blank of the application of the water-soluble yarn on the warp knitting machine, greatly improves the production efficiency of producing the fabric with the velvet feeling, velvet core and strong concave-convex three-dimensional sense and reduces the production cost. The application process provided by the invention expands the new application of the existing common warp knitting machine equipment combined with water-soluble yarns, has simple process, is easy to realize industrial popularization, and can provide rich and various cloth effects.

Drawings

FIG. 1 is a perspective concavo-convex stereoscopic knit product obtained by applying water soluble yarns on a warp knitting machine according to an embodiment;

FIG. 2 shows a fluffy and fluffy three-dimensional knitted product obtained by applying water-soluble yarns on a warp knitting machine according to an embodiment;

FIG. 3 shows a pile-like knit product cloth obtained by the method of the comparative example;

fig. 4 shows another pile-like knitted product fabric obtained by the technical solution of the comparative example.

Detailed Description

In order to explain technical contents, structural features, objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in combination with the embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present application.

Example 1

Perspective concave-convex stereoscopic sense velvet core knitted product and process for preparing same by adopting water-soluble yarns

In this embodiment, a JT09 model warp knitting machine with E22 jacquard double-needle single jacquard plus 6 guide bars (7 guide bars in total because the single jacquard is split into two half guide bars) is adopted, and the arrangement of the guide bars from the front needle bed to the back needle bed is L1, L2, L3, JB1.1, JB1.2, L4 and L5 in this order. L1 and L2 respectively penetrate two pieces of PVA polyethylene water-soluble yarn (the water-soluble temperature is 50-60 ℃) with white half light of 50D/24F (100D/48F), and the yarn penetrating modes are one-through one-empty. The L3 penetrates white 87D/1F terylene fishing thread PBT, and the threading mode is full threading. Two half jacquard guide bars JB1.1 and JB1.2 respectively penetrate two white circular bright 75D/36FPOY (150D/72F) environment-friendly yarn normal-temperature cation light mesh (S + Z) DTY in a one-to-one-space and one-to-one-space manner. The L4 penetrates into the white 87D/1F terylene fishing thread PBT in a full penetration mode. L5 penetrates into a white circular bright 100D/1F terylene fishing thread PBT. In this embodiment, the technical weave numbers of the weaving on the loom are respectively:

L1：1-0-1-2/2-3-2-1//

L2：2-3-2-1/1-0-1-2//

l3:1-1-1-0-1-1-0-1// comprises a transition

JB1.1：1-1-1-0-1-1-1-2

JB1.2：1-1-1-0-1-1-1-2

L4:1-1-1-0-1-1-1-2// comprises a transition

L5:3-3-3-3-0-0-0-0// comprises a transition

The density of the machine is 15.5, the opening/rotating speed is 3.5/350, the treatment such as dyeing and finishing and shaping is carried out after the grey cloth is obtained, because the water-soluble temperature of the adopted long-fiber water-soluble yarn is 50-60 ℃, the weaving part of the water-soluble yarn is dissolved away in the dyeing and finishing and shaping process, and the weaving part of the rest creel yarn and the common yarn can obtain the perspective concave-convex stereoscopic velvet core knitting product shown in figure 1.

Example 2

Fluffy velvet knitted product and process for preparing same by adopting long-fiber water-soluble yarns

The difference from the example 1 is that L1 and L2 respectively penetrate two PVA polyethylene water-soluble yarns (the water-soluble temperature is 50-60 ℃) with white half light of 50D/24F (100D/48F), and the yarn penetrating modes are one-through one-empty. The L3 yarn is white half-light 75D/72F terylene regenerated yarn FDY, and the yarn threading mode is full threading. The yarns penetrated by the half jacquard guide bar JB1.1 are white half light 80D/96F (white half light 30D/24F POY + white half light 50D/72F POY) terylene light nets DTY, and the threading mode is one threading and one empty; the yarn penetrated by the jacquard guide bar JB1.2 is white circular bright 150D/72F (137D/36F 2. POY) environment-friendly yarn normal-temperature cation 110 ℃ light net DTY, and the yarn penetrating mode is one-through one-empty; the yarns penetrated by the L4 are white semi-bright 150D/48F terylene regenerated yarns FDY, and the yarn penetrating mode is full penetration; the yarns penetrated by the L5 are white round bright 100D/1F terylene fishing yarns, and the threading mode is full threading;

the technical organization weaving number is respectively as follows:

L1：1-0-1-2/2-3-2-1//

L2：2-3-2-1/1-0-1-2//

l3:1-1-1-0-1-1-0-1// comprises a transition

JB1.1:1-0-1-0-0-1-1-2// Jiaka, comprising a transition

JB1.2:1-0-1-0-0-1-1-2// Jiaka, comprising a transition

L4：1-0-1-2-1-0-2-3//

L5：1-2-1-0//

The knitting process described above yields a three-dimensional pile-like knitted product as shown in figure 2.

Compared with a weaving method of combining a doubling machine and a two-for-one twister with twill weave, the weaving method has the advantages that the production process is simple, the operation steps are simple and convenient, the production cycle is saved by more than half, the production efficiency of the fabric with strong three-dimensional velvet feeling is greatly improved, the yarn consumption is reduced, and the cloth cover effect is enriched.

Comparative example

Instead of using water soluble yarns, the running process is 10// or 10/23// front and back needle bed spaced looping process by a fully threaded bar, yarn using DTY or core spun yarn. This acts as an opening for the full guide bar. The disadvantages of such weaving:

disadvantage 1: the guide bar is used for the interval loop-forming process, the yarn consumption is large (determined by the loop-forming process), and the cloth cover is heavy.

And (2) a defect: for example, the guide bar is made white by the polyester yarn to obtain a two-color cloth cover as shown in fig. 3, the cationic yarn is made red, and the white polyester yarn is always involved in weaving due to the addition of the guide bar, so that the color of the red part is not pure, and the white part is interwoven together to form a variegated effect, and the color is not pure.

Disadvantage 3: due to the weaving mode, the obtained cloth cover coils have the phenomena of unclean knocking, unclear coils and ugly cloth cover, and blue coil parts shown in figure 4 have the feelings of inconsistent wool feeling, unclear coils and piling together.

Disadvantage 4: in such a weaving manner, the process is single, the formed concave-convex three-dimensional effect is not obvious, and plain weave jacquard weave can not be realized at the bottom, such as the texture of the toe cap area in the vamp in fig. 1; texture jacquard patterns on the pile sense three-dimensional upper surface can not be realized, such as the diamond texture of the pile sense of the shoe body in the shoe upper in figure 1.

In comparison, the knitting product obtained by the technical scheme of the invention has the advantages of strong three-dimensional concave-convex effect of the cloth surface, soft suede, clear pattern coils without variegated colors, clear mesh structure with meshes and strong air permeability. Compared with other manufacturing processes, the technical scheme of the invention is simple, convenient and easy to operate, and also develops an application process for a wide range of warp knitting machines with double-needle-bar jacquard.

It should be noted that, although the above embodiments have been described herein, the invention is not limited thereto. Therefore, based on the innovative concepts of the present invention, the technical solutions of the present invention can be directly or indirectly applied to other related technical fields by making changes and modifications to the embodiments described herein, or by using equivalent structures or equivalent processes performed in the content of the present specification and the attached drawings, which are included in the scope of the present invention.

Claims

1. An application process of water-soluble yarns on a warp knitting machine is characterized in that a double-needle-bar jacquard warp knitting machine adopting a single jacquard bar and 6 guide bars comprises the following steps:

the method comprises the steps of knitting by adopting long-fiber water-soluble yarns in a front needle bed of the double needle beds or knitting by adopting the long-fiber water-soluble yarns and creel yarns B together, wherein the long-fiber water-soluble yarns are used for opening latch needles to participate in knitting in the knitting process so as to ensure that missed stitches are not generated;

weaving the back needle bed of the double needle bed by adopting a creel yarn A and a creel yarn B; and

2. The application process according to claim 1, characterized in that the single bar of said single bar plus 6 is divided into two half bars JB1.1 and JB1.2, of said 6 bars L1, L2 and L3 being arranged in a position close to the front needle bed, L4 and L5 being arranged in a position close to the rear needle bed, said bars JB1.1 and JB1.2 being arranged in sequence between said L3 and L4.

3. The application process of claim 2, wherein both L1 and L2 are threaded into the long fiber water soluble yarn in a manner of one through one space;

and the L3 penetrates into the creel yarn A or the creel yarn B in a full penetration mode.

4. The application process of claim 3, wherein the jacquard guide bars JB1.1 and JB1.2 respectively thread into creel yarn A and creel yarn B in a manner of one thread and one empty thread.

5. The application process according to claim 4, wherein L4 and L5 are threaded into creel yarn A and/or creel yarn B respectively in a full-through manner.

6. The application of claim 2, wherein said L3 and L4 weave motifs each comprise a transition portion identical to the weave motifs of said bars JB1.1 and JB 1.2.

7. A knitted product produced by the use of the process according to any one of claims 1 to 6.

8. The knitted product according to claim 7, characterized in that it comprises a single layer pile core fabric, a relief jacquard fabric or a relief jacquard see-through fabric.