CN212404414U - Large-opening-degree high-recovery warp-knitted fabric - Google Patents

Abstract

A warp-knitted fabric with large openness and high recovery. The functional warp-knitted fabric is composed of at least two yarns, wherein Y1 is inelastic yarn, Y2 is elastic yarn such as spandex or polyolefin, and the like, and the fabric weave structure is Y1 which is a three-needle or more than three-needle warp flat structure; y2, and Y1 needle back same direction same needle pitch warp flat structure, through the function surface fabric that yarn Y1 and Y2 wore in the sky above the sley bar and form has big aperture, high recovery, soft smooth feel and have warp freely to cut, the characteristic of not curling.

Description

Large-opening-degree high-recovery warp-knitted fabric

Technical Field

The invention relates to a warp-knitted fabric with large openness and high recovery, and a design and preparation method thereof.

Background

Freely cut warp-knitted fabrics have attracted more attention in the market recently, and the fabrics can be freely cut in the warp direction, do not have burrs, fall off or curl, and are softer and smoother than fabrics with mark edges in hand feeling.

Patent CN100403947C discloses a non-curling fabric with random cutting in the warp direction, which has the characteristics of non-curling and random cutting in the warp direction through a warp flat structure woven by two guide bars of GB1 and GB2 in a full-through manner, but the fabric is not easy to stretch by wearing due to full-through, short extension line, compact structure, small openness.

The garment is a necessary living article in daily life of people, along with the continuous improvement of living standard of people, people have great requirements on the material, performance and comfort level of the garment, especially the requirement on high elasticity on sports fabrics is higher and higher, the high elasticity is generally realized by using spandex in the market, the comfort level is greatly reduced, the durability of the fabrics is not strong, the price is higher, the dyeing and post-treatment of the fabrics are greatly influenced, and aiming at the defects and actual requirements of the prior art, the difficulty is necessarily overcome in the prior art, the low spandex content is realized, the comfort level and durability are improved on the wearability, and the price is also reduced.

Therefore, the developed fabric has the characteristics of large openness, high recovery, soft and smooth hand feeling, random cutting in the warp direction and no edge curling.

Disclosure of Invention

The invention provides a warp-knitted fabric with large openness and high recovery, and a design and preparation method thereof. The fabric is threaded on the guide bar in the air through the yarn, small loop columns are formed on the front side of the weaving process through selection of the yarn and the needle number, meanwhile, on the back side of the weaving process, due to contraction of elastic yarns, the inelastic yarns are drawn together through long extension threads formed by the method of threaded on the guide bar in the air, and when the fabric is stretched in the longitudinal direction, the extension threads are transferred to the loop columns, so that the fabric has large opening degree in the longitudinal direction; when the fabric is stretched transversely, longer extension lines are stored between adjacent loops in the transverse direction, so that the fabric has a large opening degree in the transverse direction, and the warp and weft directions of the fabric have good opening degrees. By selecting raw materials of yarns, optimizing a weaving process, adjusting production process parameters, and realizing synergistic and mutual cooperation of all the steps, the finally obtained fabric has the characteristics of large openness, high recovery, soft and smooth hand feeling, arbitrary warp cutting and no edge curling, and has wide application prospect and great market value.

In order to achieve the effect, the invention adopts the following technical scheme:

the invention provides a warp-knitted fabric with large openness and high recovery, and a design and preparation method thereof.

The inventor finds out that the weaving process and the production conditions are continuously searched in the long-term production practice aiming at the market demand and the technical defects of the warp-knitted fabric with large openness and high recovery, firstly, the thin yarn is applied to the lower needle number and is easy to break, the cloth cover is easy to have longitudinal strips, and the problems can be improved by adopting the air-through mode on the higher needle number; secondly, under the condition that weaving conditions are the same except that the needle number is different, the lower the needle number, the larger the let-off quantity is, the higher the needle number is, the empty threading is adopted, the let-off quantity is close to that of the lower needle number, so that the yarn feeding quantity of the higher needle number is large, the extension line is long, and the opening degree is good; thirdly, the yarn guide bar with higher needle number can form smaller coil loop columns and long extension lines in a hollow penetrating mode, and the extension lines of the non-elastic yarns and the elastic yarns are arranged in parallel, so that the friction force between the non-elastic yarns and the elastic yarns during stretching and releasing is small, the opening degree of the fabric during stretching is large, and the recovery performance during releasing is good.

Drawings

FIG. 1 is a pictorial representation of the present invention;

FIG. 2 is an organization chart of a first embodiment of the invention;

FIG. 3 is an organization chart of a second embodiment of the present invention;

FIG. 4 is an organizational chart of example three of the present invention;

FIG. 5 is an organizational chart of example four of the present invention;

FIG. 6 is an organizational chart of example five of the present invention;

FIG. 7 is an organizational chart of example six of the present invention;

FIG. 8 is an organizational chart of example seven of the present invention;

FIG. 9 is an organizational chart of example eight of the present invention;

FIG. 10 is an organizational chart of an example nine of the present invention;

FIG. 11 is an organizational chart of an example ten of the present invention;

FIG. 12 is an organizational chart of an eleventh embodiment of the invention;

FIG. 13 is an organizational chart of example twelve of the invention.

Detailed Description

In order to further illustrate the technical means and effects adopted by the present invention, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings, but the present invention is not limited within the scope of the embodiments.

The specific structure of the two combs GB1 and GB2, and the inlay yarn number, have the following 12 preferred embodiments.

Example one

As shown in figure 2, the guide bar GB1 adopts a three-needle closed warp flat structure and is knitted in a motion mode of yarn laying number 1-0/2-3// and the guide bar GB2 adopts a three-needle open warp flat structure and is knitted in a motion mode of yarn laying number 0-1/3-2// so that GB1/GB2 forms a high-elastic non-hemming warp free-cutting warp-knitting elastic fabric in a one-through-one-empty mode.

Example two

As shown in figure 3, the guide bar GB1 adopts a four-needle closed warp flat structure and is knitted in a motion mode of yarn laying numbers 1-0/3-4// and the guide bar GB2 adopts a four-needle open warp flat structure and is knitted in a motion mode of yarn laying numbers 0-1/4-3// so that GB1/GB2 forms a high-elastic non-curling warp free-cutting warp-knitted elastic fabric in a one-pass-two-space mode.

EXAMPLE III

As shown in figure 4, the guide bar GB1 adopts a five-needle closed warp flat structure and is knitted in a motion mode of yarn laying number 1-0/4-5// and the guide bar GB2 adopts a five-needle open warp flat structure and is knitted in a motion mode of yarn laying number 0-1/5-4// so that GB1/GB2 forms a high-elastic non-curling warp free-cutting warp-knitted elastic fabric in a one-through-three-empty mode.

Example four

As shown in figure 5, a guide bar GB1 adopts a three-needle closed warp flat structure and is knitted in a motion mode of yarn laying numbers 1-0/2-3// and a guide bar GB2 adopts a three-needle closed warp flat structure and is knitted in a motion mode of yarn laying numbers 1-0/2-3// so that GB1/GB2 forms a high-elastic non-hemming warp free-cutting warp-knitting elastic fabric in a one-to-one-empty-passing mode.

EXAMPLE five

As shown in figure 6, the guide bar GB1 adopts a four-needle closed warp flat structure and is knitted in a motion mode of yarn laying numbers 1-0/3-4// and the guide bar GB2 adopts a four-needle closed warp flat structure and is knitted in a motion mode of yarn laying numbers 1-0/3-4// so that GB1/GB2 forms a high-elastic non-hemming warp free-cutting warp-knitting elastic fabric in a one-to-two-hole mode.

EXAMPLE six

As shown in figure 7, a guide bar GB1 adopts a five-needle closed warp flat structure and is knitted in a motion mode of yarn laying number 1-0/4-5// and a guide bar GB2 adopts a five-needle closed warp flat structure and is knitted in a motion mode of yarn laying number 1-0/4-5// so that GB1/GB2 forms a high-elastic non-hemming warp free-cutting warp-knitting elastic fabric in a one-space-three-penetration mode.

EXAMPLE seven

As shown in figure 8, the guide bar GB1 adopts a three-needle open warp flat structure and is knitted in a motion mode of yarn laying number 0-1/3-2// and the guide bar GB2 adopts a three-needle open warp flat structure and is knitted in a motion mode of yarn laying number 0-1/3-2// so that GB1/GB2 forms a high-elastic non-curling warp free-cutting warp-knitted elastic fabric in a one-to-one-empty mode.

Example eight

As shown in figure 9, the guide bar GB1 adopts a four-needle open warp flat structure and is knitted in a motion mode of yarn laying number 0-1/4-3// and the guide bar GB2 adopts a four-needle open warp flat structure and is knitted in a motion mode of yarn laying number 0-1/4-3// so that GB1/GB2 forms a high-elastic non-curling warp free-cutting warp-knitted elastic fabric in a one-in-two-in-one mode.

Example nine

As shown in figure 10, the guide bar GB1 adopts a five-needle open warp flat structure and is knitted in a motion mode of yarn laying number 0-1/5-4// and the guide bar GB2 adopts a five-needle open warp flat structure and is knitted in a motion mode of yarn laying number 0-1/5-4// so that GB1/GB2 forms a high-elastic non-curling warp free-cutting warp-knitted elastic fabric in a one-to-three-hole mode.

Example ten

As shown in figure 11, the guide bar GB1 adopts a three-needle open warp flat structure and is knitted in a motion mode of yarn laying number 0-1/3-2// and the guide bar GB2 adopts a three-needle closed warp flat structure and is knitted in a motion mode of yarn laying number 1-0/2-3// so that GB1/GB2 forms a high-elastic non-hemming warp free-cutting warp-knitting elastic fabric in a one-through-one-empty mode.

EXAMPLE eleven

As shown in figure 12, the guide bar GB1 adopts a four-needle open warp flat structure and is knitted in a motion mode of yarn laying number 0-1/4-3// and the guide bar GB2 adopts a four-needle closed warp flat structure and is knitted in a motion mode of yarn laying number 1-0/3-4// so that GB1/GB2 forms a high-elastic non-curling warp free-cutting warp-knitted elastic fabric in a one-pass-two-space mode.

Example twelve

As shown in figure 13, the guide bar GB1 adopts a five-needle open warp flat structure and is knitted in a motion mode of yarn laying number 0-1/5-4// and the guide bar GB2 adopts a five-needle closed warp flat structure and is knitted in a motion mode of yarn laying number 1-0/4-5// so that GB1/GB2 forms a high-elastic non-curling warp free-cutting warp-knitted elastic fabric in a one-through-three-empty mode.

When specifically weaving, the following method is adopted:

1. warping yarns used in warp knitting:

1) warping of chemical fiber filaments or staple fibers or polyolefins:

the warping machine type: karl Mayer DS 21/30NC-2, negative feed.

Warping temperature: warping humidity at 23 ℃: 65 percent of

And setting process parameters in the workshop under the conditions of the temperature and the humidity.

2) Warping spandex:

the warping machine type: karl Mayer DSE-H21/30NC-2, positive feed.

Warping temperature: warping humidity at 24 ℃: 78 percent of

And setting process parameters in the workshop under the conditions of the temperature and the humidity.

2. Weaving

Weaving machine model: karl. Mayer HKS3-1, HKS4-1, RSE4-1 or other single bar warp knitting machines.

The machine number range is as follows: E24-E50

The yarns used in the fabric were: chemical fiber filament or staple fiber and spandex or polyolefin

3. Dyeing and finishing process

Dry cleaning (or water washing) → reservation → overflow dyeing → dewatering → finishing

Example (c): KA1201387C

Color: black color

The use model is as follows: HKS4-1EL, 32G, 130 inch

Yarn laying number: GB1: 1-0/2-3//; GB2: 0-1/3-2//

The threading mode: GB 1A method comprises the following steps of firstly, penetrating and emptying; GB 2A method comprises the following steps of firstly, penetrating and emptying;

the raw materials are used: GB1: PES/MODAL 65/3560S/1 compact siro spinning; GB2: PU 40D;

the weaving process comprises the following steps: GB1:1600 mm/wax; GB2:1000 mm/wax;

a dyeing and finishing process: water washing → reservation → overflow dyeing → dehydration → finishing;

breadth: 180CM

Gram weight: 140GSM

Physical testing parameters (method-hook wire-ASTM D3939-Snag-600 turns)

Length Rating (Length Rating): 3.5

Width (Width Rating): 3.5

Physical testing parameters (method-hook wire-BS 8479-Snag-standard template-2000 turn)

Length Rating (Length Rating): 3.5

Width (Width Rating): 3.5

Physical testing parameters (method-opening-LTD 03-Effective Load-7.5lbf)

Length Elongation (Elongation Length) of 150%

Width Elongation (Elongation Width) of 200%

Physical testing parameters (method-opening-M & S-Effective Load-3.6kg)

Length Elongation (Elongation Length) of 150%

Width Elongation (Elongation Width) of 200%

Physical testing parameters (method-reply-LTD 03-Effective Load-7.5lbf)

Length Recovery (Recovery Length) 95%

The Width retraction rate (Recovery Width) is 95%

Physical testing parameters (method-recovery-M & S-Effective Load-3.6kg)

Length Recovery (Recovery Length) 95%

The Width retraction rate (Recovery Width) is 95%

Hand feeling

Selecting 3 textile industry technicians, performing touch feeling on the two fabrics, and comprehensively evaluating the hand feeling rating of the fabrics, wherein the grade is 1-5, and the grade is the best grade 5.

In conclusion, the warp-knitted fabric with the large opening degree and the high recovery function, and the design and preparation method thereof are provided, yarn raw materials are selected, a hollow-through mode is adopted, the knitting process is optimized, production process parameters are adjusted, all the steps are synergistic under the same conditions, and the steps are matched with each other, so that the warp-knitted fabric with the large opening degree and the high recovery rate, no curling edge and the warp-direction arbitrary cutting are finally obtained, and the warp-knitted fabric with the large opening degree and the high recovery function has additional comfortable characteristics of high air permeability, good hand feeling and the like.

Claims (12)

1. The large-openness high-recovery warp-knitted fabric is characterized by being composed of at least two yarns Y1 and Y2, wherein Y1 is inelastic yarn, Y2 is elastic yarn, Y1 is a three-needle or more-than-three-needle warp flat structure, Y2 and Y1 needle backs are in the same direction and in the same needle pitch, and yarns Y1 and Y2 are threaded in the space above a guide bar to form the fabric.

2. The wide open, high recovery warp knit fabric of claim 1 wherein Y1 is a staple having a yarn thickness of between 20 and 100 inches.

3. The wide open, high recovery warp knit fabric of claim 2 wherein the Y1 staple yarn has a thickness of between 30 and 80 inches.

4. The wide open, high recovery warp knit fabric of claim 1 wherein Y2 is an elastomeric yarn of spandex or polyolefin having a yarn thickness of between 15 and 140 denier.

5. The large gauge, high recovery warp knit face fabric according to claim 1, wherein the Y1 tow bar and the Y2 stretch yarn bar lay yarn in the same shogging direction of the back of the needle, the Y1 and Y2 front lay yarn is 1 needle, the back lay yarn is the same needle pitch is 2 needles, 3 needles or 4 needles, the number of the Y1 lay yarn is selected from the group consisting of 1-0/2-3//, 1-0/3-4//, 1-0/4-5//, 0-1/3-2//, 0-1/4-3// and 0-1/5-4/, and the number of the Y2 lay yarn is selected from the group consisting of: 1-0/2-3//, 1-0/3-4//, 1-0/4-5//, 0-1/3-2//, 0-1/4-3// or 0-1/5-4//.

6. The high open, high recovery warp knit fabric of claim 1 wherein Y1 is a filament having a yarn thickness of between 15 and 140 denier.

7. The high openness, high recovery warp knit face fabric according to claim 1, wherein the Y1 filament bar and the Y2 stretch yarn bar lay yarn in the same shogging direction of the back of the needle, the Y1 and Y2 front lay yarn is 1 needle, the back lay yarn is the same needle pitch, is 2 needle, 3 needle or 4 needle, the number of the Y1 lay yarn is selected from 1-0/2-3//, 1-0/3-4//, 1-0/4-5//, 0-1/3-2//, 0-1/4-3// or 0-1/5-4/, and the number of the Y2 lay yarn is selected from: 1-0/2-3//, 1-0/3-4//, 1-0/4-5//, 0-1/3-2//, 0-1/4-3// or 0-1/5-4//.

8. The wide open, high recovery warp knit fabric of claim 1 further characterized in that said warp knit fabric comprises additional yarns forming 3 or more combs.

9. A high openness, high recovery warp knit fabric as claimed in claim 8 wherein said other yarns are of an increased weft insertion, miss-padding, loop-forming construction.

10. The wide open, high recovery warp knit fabric of claim 1 characterized in that the openness of the fabric is characterized by: the length elongation rate is more than or equal to 90 percent, and the width elongation rate is more than or equal to 120 percent.

11. The wide open, high recovery warp knit fabric of claim 1 characterized in that the recovery characteristics of the fabric are: the length recovery rate is more than or equal to 90 percent, and the width recovery rate is more than or equal to 90 percent.

12. The wide open, high recovery warp knit fabric of claim 1 wherein said fabric is woven on a single needle bar warp knitting machine or on one needle bar of a double needle bar warp knitting machine having between 24 and 50 needles per inch.

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