Twill woven fabric and processing technology thereof

Abstract

The twill woven fabric comprises warp yarns and weft yarns, the warp yarns and the weft yarns are woven in a staggered mode through a 3 / 1 twill structure, the warp yarns are formed by doubling a plurality of polyester interlaced yarns, and the weft yarns are formed by doubling polyester filament yarns and polyester staple fibers. A plurality of 75D / 36F polyester interlaced yarns are doubled into warp yarns, so that the three-dimensional touch feeling, the fabric hardness and the fabric strength of the woven fabric are improved, polyester filament yarns and polyester staple fibers are doubled into weft yarns, so that the cotton texture of the woven fabric is enhanced, the fabric hardness is improved, and meanwhile, the warp yarns and the weft yarns are doubled into warp yarns. The fabric is formed by weaving the warp yarns and the weft yarns in a warp and weft staggered mode in a 3 / 1 twill tatting mode, so that the structure of the woven fabric is more stable, the woven fabric is not prone to deformation, the fabric has thick texture and good abrasion resistance and air permeability, and when the fabric is manufactured into a tool jacket, the tool jacket is more comfortable and breathable to wear.

Description

Technical Field

[0001] The invention relates to the technical field of textile fabrics, in particular to a twill woven fabric and a processing technology thereof. Background Art

[0002] Due to its usage requirements, work jackets generally require their fabrics to be stiff, that is, the fabrics must have sufficient hardness and strength to meet the needs of daily wear and work use of work jackets.

[0003] In order to take into account both the wearing comfort and manufacturing cost of work jackets, pure polyester yarn is usually selected to weave the work jacket fabric. However, due to the influence of the pure polyester yarn material itself, the woven fabric is generally soft and has low strength. Therefore, it is often necessary to use a sizing process to improve the hardness and strength of the fabric to meet the manufacturing needs of the work jacket. However, this invisibly increases the production cost, and the fabric after sizing has poor air permeability, affecting the comfort of subsequent wearing and use. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art and provide a twill woven fabric and a processing technology thereof.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] A twill woven fabric comprises warp yarns and weft yarns, wherein the warp yarns and the weft yarns are interlaced and woven through a 3 / 1 twill structure, the warp yarns are formed by spun yarns of multiple polyester interlaced yarns, and the weft yarns are formed by spun yarns of polyester filaments and polyester staple fibers.

[0007] Preferably, in one weave cycle of the twill woven fabric, the overlapping point of the first column of warp yarns and the fourth row of weft yarns is the weft weave point; the overlapping point of the second column of warp yarns and the first row of weft yarns is the weft weave point; the overlapping point of the third column of warp yarns and the second row of weft yarns is the weft weave point; and the overlapping point of the fourth column of warp yarns and the third row of weft yarns is the weft weave point.

[0008] Preferably, the warp yarn is formed by doubling three 75D / 36F polyester interwoven yarns.

[0009] Preferably, the weft yarn is formed by a 300D / 96F polyester filament and a 20S / 1 polyester staple fiber arranged in a 1:1 ratio.

[0010] Preferably, the effective width of the twill woven fabric is 148 to 150 cm.

[0011] Preferably, the twill woven fabric has a grammage of 240 to 280 GSM.

[0012] Preferably, the twill woven fabric is coated with a waterproofing agent.

[0013] A processing technology for twill woven fabrics, comprising the following process steps:

[0014] S1. Pretreatment: unwinding the twill woven fabric obtained by 3 / 1 twill weaving of warp yarn and weft yarn, and subjecting it to 24-hour cold stacking treatment, and adding a cold stacking aid during the cold stacking process, wherein the cold stacking aid comprises: 5-6% of liquid alkali, 0.5-1% of penetrant, 0.5-1% of desizing agent, 0.5-1% of degreasing agent, and the balance is water;

[0015] S2. Dyeing treatment: dyeing the cold-batch twill woven fabric at an ambient temperature of 120-130° C. for 5.5-6 hours;

[0016] S3, reduction cleaning: the dyed twill woven fabric is cleaned with a reduction agent, the composition of the reduction agent is: 7-8% liquid alkali, 2-3% hydrosulfite, and the balance is water;

[0017] S4, drying and shaping: drying and shaping the cleaned twill woven fabric, the drying temperature of the twill woven fabric is 155-165°C, the running speed is 25-30m / min, the shaping temperature of the twill woven fabric is 160-170°C, and the running speed is 25-30m / min;

[0018] S5. Waterproofing: coating a waterproofing agent on the dried and shaped twill woven fabric, wherein the composition of the waterproofing agent is: 0.5-1% of a waterproof cross-linking agent, 3-4% of a fluorine-free waterproofing agent, and the balance is water;

[0019] S6, coating treatment: coating PA water-based adhesive on twill woven fabric, and the coating temperature is 150-160℃, and the running speed is 40-45m / min;

[0020] S7. Pre-shrinkage treatment: The twill woven fabric is placed in a pre-shrinkage machine at a temperature of 120-130°C and a running speed of 30-40 m / min for pre-shrinkage.

[0021] Preferably, dyeing is carried out in an environment of glacial acetic acid with a pH value of 4.2 to 4.4, and dyeing auxiliaries are added, wherein the ingredients of the dyeing auxiliaries are: 3 to 4% of a high-temperature leveling agent, 1 to 2% of a bath softener, and the balance is water.

[0022] The beneficial effects of the present invention are:

[0023] By combining multiple 75D / 36F polyester interwoven yarns into warp yarns, the surface texture and touch of the warp yarns are enhanced, that is, the three-dimensional touch, hardness and strength of the woven fabric are improved, and by combining polyester filaments and polyester staple fibers into weft yarns, the cotton texture of the woven fabric is enhanced and the hardness of the fabric is increased. At the same time, by interlacing the warp and weft yarns into fabrics in a 3 / 1 twill weave, the structure of the woven fabric is more stable and less prone to deformation, and the fabric has a thick texture, good wear resistance and breathability, so that when the fabric is made into a work jacket, it is more comfortable and breathable to wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the tissue circulation of the present invention;

[0025] Figure 2 It is a weaving schematic diagram of the present invention;

[0026] Figure 3 It is a schematic diagram of the structure of the warp yarn of the present invention;

[0027] Figure 4 It is a schematic structural diagram of the weft yarn of the present invention.

[0028] In the figure: warp yarn 1, polyester network yarn 11, weft yarn 2, polyester filament 21, polyester staple fiber 22. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0030] In the description of this specification, the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0031] like Figure 1 to Figure 4 As shown, the present embodiment discloses a twill woven fabric, comprising a warp yarn 1 and a weft yarn 2, wherein the warp yarn 1 is formed by paralleling a plurality of polyester network yarns 11, specifically, the warp yarn 1 is formed by paralleling three 75D / 36F polyester network yarns 11. Compared with the conventional warp yarn 1 formed by paralleling two polyester network yarns 11, the warp yarn 1 of the present embodiment is formed by paralleling three 75D / 36F polyester network yarns 11 to enhance the surface texture and touch of the fabric woven by the warp yarn 1, that is, the three-dimensional touch, fabric hardness and strength of the fabric woven using the warp yarn 1 of the present embodiment are improved, making the fabric texture more distinct.

[0032] The weft yarn 2 is made of polyester filament 21 and polyester staple fiber 22, and is specifically made of a 300D / 96F polyester filament 21 and a 20S / 1 polyester staple fiber 22 arranged in a 1:1 ratio. Since the polyester staple fiber 22 has a softer feel and the polyester filament 21 has a relatively hard texture, the polyester filament 21 and the polyester staple fiber 22 are matched to enhance the cotton texture of the fabric woven with the weft yarn 2, making the fabric feel more comfortable and ensuring that the fabric has good hardness.

[0033] Specifically, the warp yarn 1 and the weft yarn 2 are interlaced and woven into a fabric through a 3 / 1 twill structure, that is, the twill woven fabric in this embodiment. The effective width of the twill woven fabric is 148 to 150 CM, and the gram weight of the twill woven fabric is 240 to 280 GSM.

[0034] And in one weave cycle of the twill woven fabric, the overlapping point of the first column of warp yarns 1 and the fourth row of weft yarns 2 is a weft weave point; the overlapping point of the second column of warp yarns 1 and the first row of weft yarns 2 is a weft weave point; the overlapping point of the third column of warp yarns 1 and the second row of weft yarns 2 is a weft weave point; the overlapping point of the fourth column of warp yarns 1 and the third row of weft yarns 2 is a weft weave point.

[0035] Through the above-mentioned warp and weft interlaced weaving method, the structure of the woven fabric is more stable and less prone to deformation, and the fabric has a thick texture, good wear resistance and air permeability. When the fabric is made into a work jacket, it is more comfortable and breathable to wear, and no sizing is required during production, which reduces production costs.

[0036] In order to improve the waterproof property of the twill woven fabric, a waterproof additive is coated on the twill woven fabric, that is, a waterproof coating is coated on the twill woven fabric to improve the waterproof effect of the twill woven fabric.

[0037] This embodiment also discloses a processing technology for twill woven fabrics, including the following process steps:

[0038] S1, pre-treatment: unwinding the twill woven fabric obtained by 3 / 1 twill weaving of warp yarn 1 and weft yarn 2, and performing a 24-hour cold-bundling treatment, and adding a cold-bundling auxiliary agent during the cold-bundling process, wherein the composition of the cold-bundling auxiliary agent is: 5-6% of liquid alkali, 0.5-1% of penetrant, 0.5-1% of desizing agent, 0.5-1% of degreasing agent, and the balance is water;

[0039] By cold-piling the twill woven fabric at a low temperature, the chemical reaction is mild, thereby reducing the damage to the warp yarn 1 fiber and the weft yarn 2 fiber, so that the cold-piling auxiliary agent can penetrate into the twill woven fabric more evenly, thereby improving the dyeing permeability of the twill woven fabric, so that in the subsequent dyeing process, the dye can be better adsorbed on the twill woven fabric, and the color fixing effect of the twill woven fabric is enhanced.

[0040] S2, dyeing treatment: setting the cold-batch twill woven fabric to be dyed at an ambient temperature of 120-130° C. for 5.5-6 hours, and further, dyeing in a glacial acetic acid environment with a pH value of 4.2-4.4, and adding a dyeing auxiliary, wherein the composition of the dyeing auxiliary is: 3-4% of a high-temperature leveling agent, 1-2% of a bath softener, and the balance is water;

[0041] By dyeing the twill woven fabric with random disperse dyes in a glacial acetic acid environment with a pH value of 4.2-4.4, the color of the twill woven fabric can be more stable, have better color fastness, and be less likely to fade.

[0042] S3, reduction cleaning: the dyed twill woven fabric is cleaned with a reduction agent, the composition of the reduction agent is: 7-8% liquid alkali, 2-3% insurance powder (sodium hyposulfite or sodium dithionite), and the balance is water;

[0043] The dye molecules not fixed on the twill woven fabric fibers are removed by reducing agents, thereby improving the color fastness and color shade of the twill woven fabric, so that the color fastness of the twill woven fabric can reach above level 4 after washing in water at 60°C.

[0044] S4, drying and shaping: drying and shaping the cleaned twill woven fabric, the drying temperature of the twill woven fabric is 155-165°C, the running speed is 25-30m / min, the shaping temperature of the twill woven fabric is 160-170°C, and the running speed is 25-30m / min;

[0045] Through drying and shaping treatment, the twill woven fabric can have a good feel and a more stable size, that is, the twill woven fabric is not easy to deform and is more stiff.

[0046] S5. Waterproofing: coating a waterproofing agent on the dried and shaped twill woven fabric, wherein the composition of the waterproofing agent is: 0.5-1% of a waterproof cross-linking agent, 3-4% of a fluorine-free waterproofing agent, and the balance is water;

[0047] The waterproof performance of the twill woven fabric is improved by coating the twill woven fabric with a waterproof additive, so that the water-repellent performance of the twill woven fabric reaches level 4 or above.

[0048] S6, coating treatment: coating PA water-based adhesive on twill woven fabric, and the coating temperature is 150-160℃, and the running speed is 40-45m / min;

[0049] By coating a light coating of PA water-based adhesive on the twill woven fabric, not only the feel of the twill woven fabric is enhanced, but also the yarn is fixed and the stability of the twill woven fabric is improved. Moreover, the air permeability of the twill woven fabric is not affected after coating the light coating of PA water-based adhesive.

[0050] S7. Pre-shrinkage treatment: The twill woven fabric is placed in a pre-shrinkage machine at a temperature of 120-130°C and a running speed of 30-40 m / min for pre-shrinkage.

[0051] Conventional fabric pre-shrinking uses a flat-width pre-shrinking machine. This embodiment uses a drum pre-shrinking machine for water washing and pre-shrinking, that is, 5 industrial washings in industrial water, and the shrinkage rate is guaranteed to be less than 2%, and then the dimensional stability of the twill woven fabric is enhanced through water washing and pre-shrinking.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A twill woven fabric, characterized in that: The invention comprises warp yarn (1) and weft yarn (2), wherein the warp yarn (1) and weft yarn (2) are interlaced and woven through a 3 / 1 twill structure, the warp yarn (1) is formed by spun yarns of multiple polyester interlaced yarns (11), and the weft yarn (2) is formed by spun yarns of polyester filaments (21) and polyester staple fibers (22).

2. A twill woven fabric as claimed in claim 1, characterized in that: In one weave cycle of the twill woven fabric, the overlapping point of the first column of warp yarns (1) and the fourth row of weft yarns (2) is a weft weave point; the overlapping point of the second column of warp yarns (1) and the first row of weft yarns (2) is a weft weave point; the overlapping point of the third column of warp yarns (1) and the second row of weft yarns (2) is a weft weave point; and the overlapping point of the fourth column of warp yarns (1) and the third row of weft yarns (2) is a weft weave point.

3. The twill woven fabric according to claim 1, characterized in that: The warp yarn (1) is formed by paralleling three 75D / 36F polyester interlaced yarns (11).

4. The twill woven fabric according to claim 1, characterized in that: The weft yarn (2) is formed by arranging a 300D / 96F polyester filament (21) and a 20S / 1 polyester staple fiber (22) in a ratio of 1:

1.

5. A twill woven fabric according to any one of claims 1 to 4, characterized in that: The effective width of the twill woven fabric is 148 to 150 cm.

6. A twill woven fabric according to any one of claims 1 to 4, characterized in that: The twill woven fabric has a grammage of 240 to 280 GSM.

7. A twill woven fabric according to any one of claims 1 to 4, characterized in that: The twill woven fabric is coated with a waterproofing auxiliary agent.

8. A process for processing twill woven fabrics according to any one of claims 1 to 4, characterized in that: The process steps include: S1, pre-treatment: unwinding the twill woven fabric obtained by 3 / 1 twill weaving of the warp yarn (1) and the weft yarn (2), and performing a 24-hour cold-bundling treatment, and adding a cold-bundling auxiliary agent during the cold-bundling process, wherein the cold-bundling auxiliary agent comprises: 5-6% of liquid alkali, 0.5-1% of penetrant, 0.5-1% of desizing agent, 0.5-1% of degreasing agent, and the balance is water; S2. Dyeing treatment: dyeing the cold-batch twill woven fabric at an ambient temperature of 120-130° C. for 5.5-6 hours; S3, reduction cleaning: the dyed twill woven fabric is cleaned with a reduction agent, the composition of the reduction agent is: 7-8% liquid alkali, 2-3% hydrosulfite, and the balance is water; S4, drying and shaping: drying and shaping the cleaned twill woven fabric, the drying temperature of the twill woven fabric is 155-165°C, the running speed is 25-30m / min, the shaping temperature of the twill woven fabric is 160-170°C, and the running speed is 25-30m / min; S5. Waterproofing: coating a waterproofing agent on the dried and shaped twill woven fabric, wherein the composition of the waterproofing agent is: 0.5-1% of a waterproof cross-linking agent, 3-4% of a fluorine-free waterproofing agent, and the balance is water; S6, coating treatment: coating PA water-based adhesive on twill woven fabric, and the coating temperature is 150-160℃, and the running speed is 40-45m / min; S7. Pre-shrinkage treatment: The twill woven fabric is placed in a pre-shrinkage machine at a temperature of 120-130°C and a running speed of 30-40 m / min for pre-shrinkage.

9. A process for processing twill woven fabrics as claimed in claim 8, characterized in that: The dyeing is carried out in an acetic acid environment with a pH value of 4.2 to 4.4, and a dyeing auxiliary is added. The dyeing auxiliary comprises: 3 to 4% of a high-temperature leveling agent, 1 to 2% of a bath softener, and the balance is water.

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