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CN-118704137-B - Process for improving layering of heavy twist double-layer fabric

CN118704137BCN 118704137 BCN118704137 BCN 118704137BCN-118704137-B

Abstract

The invention belongs to the technical field of textile weaving processes, and particularly relates to a process for improving layering of a heavy-twist double-layer fabric. The method comprises a sizing process and a weaving process, wherein the process, equipment and a winding movement mode are matched and improved in the weaving and winding processes of the fabric according to the tissue characteristics of double-layer varieties, the drafting process sequence of warp yarns on heald frames is adjusted, the yarn tension difference on single-page heald frames is changed, and the effects of small-tension weaving, clear opening and reduction of stopping times are achieved. The winding mode after the cloth is woven is changed, the number of pressure rollers is reduced, the extrusion force of a winding device on the cloth cover in the cloth winding process is reduced as much as possible, and therefore the layering defect cloth rate of the double-layer cloth cover is reduced.

Inventors

  • SU HONGSHENG
  • DU LINLIN
  • LI DONG
  • ZHANG FENGYOU
  • LI LI
  • HE AIHUA
  • ZHANG MIAOMIAO
  • WU CHENGZHI
  • WU HONGBO

Assignees

  • 鲁丰织染有限公司

Dates

Publication Date
20260512
Application Date
20240709

Claims (7)

  1. 1. The process for improving layering of the heavy twist double-layer fabric is characterized by comprising a sizing and weaving process, wherein the sizing formula of the sizing process is as follows: 120-130g/L of starch; 20-30g/L of acrylic ester slurry; Wax extract 0.5-1.5g/L; The tension of the weaving process is 0.8-1.2kN; the drafting process of the weaving process comprises the following steps: the sequence of the harness frame arrangement pattern plates is as follows: ① 1/3*6 cycles; ② 3/1*6 cycles; ③ 1/1+1/3×4 cycles+1/2×2 cycles; ④ 2/1+3/1*5 cycles+1/; ⑤ 1/1+1/3*2 cycle+2/2+1/3*2 cycle+/2; ⑥ 2/3+1/3+4 cycles+1/2; ⑦ And ⑧ is that the edge-weave heald frame is 2/2*6; The starch is a mixture of tapioca etherified starch and corn grafted starch; the cloth rolling mode of the weaving process is to wind by adopting a lower pressure roller (3) matched with a friction roller (1), and the upper pressure roller (2) and a cloth rolling guide roller (5) are disabled.
  2. 2. The process for improving layering of a double-layer fabric for heavy twisting according to claim 1, wherein the speed of the sizing process is 40-50m/min.
  3. 3. The process for improving layering of a double-layer fabric for heavy twisting according to claim 1, wherein the weaving process speed is 640-660 rpm.
  4. 4. The process for improving layering of a double layer fabric for a heavy twist as set forth in claim 1, wherein the opening time of the weaving process is 286-294 °.
  5. 5. The process for improving layering of a double layer fabric for heavy twisting according to claim 1, wherein the inclination angle of the warp stop frame in the weaving process is 20-40 °.
  6. 6. The process for improving delamination of a hard twist double layer fabric of claim 1, wherein the sizing slurry has a viscosity of 7.6s to 8.0s.
  7. 7. The process for improving layering of a double-layer facing material according to claim 1, wherein the mass concentration of the sizing agent is 10-12%.

Description

Process for improving layering of heavy twist double-layer fabric Technical Field The invention belongs to the technical field of textile weaving processes, and particularly relates to a process for improving layering of a heavy-twist double-layer fabric. Background The double-layer fabric has the characteristics of softness, light weight, good air permeability and the like, and is deeply favored by consumers. The double-layer fabric is a fabric with two layers of double-layer tissues, wherein the two layers of the double-layer tissues are tightly connected together through a single yarn. Along with development of different tissue fabrics, the weaving process needs to be continuously optimized and improved in the traditional weaving process technology, so that high quality is achieved. The high twist yarn has the advantages that the surface smoothness of the yarn is increased, hairiness is reduced, the cloth cover is thin and transparent, the yarn has a certain strength and stable appearance, however, the high twist can cause the yarn to be more easily curled and twisted in the weaving process, and the risk of layering and defective cloth is increased. During weaving, if the weft tension is improperly controlled, it may cause the yarn to not pass smoothly through the loom, thereby causing delamination or defective cloth. During weaving, if the weft tension is not properly controlled, it may cause the yarn to pass through the loom smoothly, thereby causing delamination or defective cloth, but it is difficult to reduce the defective cloth rate by controlling the tension of the yarn alone. And the weaving difficulty of the heavy twist double-layer fabric is high, frequent stopping and trimming are unavoidable in the production process, the stopping times are high, the starting rate is low, and the production efficiency is reduced. Disclosure of Invention Aiming at the defects of the prior art, the invention aims to provide a process for improving layering of a double-layer heavy-twist fabric, so that layering problems in the weaving process of the double-layer heavy-twist fabric are reduced, defective fabric rate after starting is reduced, and starting rate is improved. The invention relates to a process for improving layering of a heavy twist double-layer fabric, which comprises a sizing and weaving process, wherein the sizing formula of the sizing process comprises the following steps: 120-130g/L of starch; 20-30g/L of acrylic ester slurry; Wax extract 0.5-1.5g/L; The tension of the weaving process is 0.8-1.2kN; the palm penetrating technology of the weaving process comprises the following steps: the sequence of the harness frame arrangement pattern plates is as follows: ① 1/3*6 cycles; ② 3/1*6 cycles; ③ 1/1+1/3×4 cycles+1/2×2 cycles; ④ 2/1+3/1*5 cycles+1/; ⑤ 1/1+1/3*2 cycles +2/2+1/3*2 cycles +/2 (double-layer node heald frame); ⑥ 2/3+1/3×4 cycles+1/2 (double-layer node heald frame); ⑦ And ⑧ is an edge weave heald frame of 2/2*6. The weaving process adopts a Jintian foal dobby loom for weaving, and the improvement of the equipment is referred to patent CN113417054A. The starch is a mixture of tapioca etherified starch and corn grafted starch. AS-1 high-performance modified starch of the Hefei Runfu textile New Material Co.Ltd is preferred. The product is further denatured by addition polymerization of acrylic acid monomers on the basis of high-quality esterified modified starch, the adhesive force and wear resistance of the serosa are improved, the obtained serosa is soft and smooth, the splitting is light and quick, hairiness in a dry partition area is effectively reduced, the product has good slurry solubility, can still keep fluidity in cold slurry, is not gelled, has good compatibility with other slurries, has good biodegradability, is convenient to desize, and has COD and BOD indexes equal to those of starch. The acrylate syrup is preferably QB-918 produced by Qingbao syrup factories of Qingdao, i.e. ink market. The acrylic ester has small polarity, the ester group is a main group and has weak hydrophilicity, the acrylic ester has excellent adhesive property to hydrophobic fibers, the hygroscopicity and the re-adhesiveness are lower than those of polyacrylamide and polyacrylic acid, so that a serosa is softer, and the acrylic ester can be used as auxiliary materials in combination with tapioca etherified starch, corn grafted starch and wax essence, so that the fibers are attached to the yarns, the yarns are effectively prevented from being twisted, the wear resistance of the yarns is improved, and meanwhile, the slipping delamination of the fabrics is avoided due to light splitting. The speed of the sizing process is 40-50m/min. The weaving process speed is 640-660 r/min. The opening time of the weaving process is 286-294 degrees. The inclination angle of the warp stop frame in the weaving process is 20-40 degrees. The cloth rolling mode of the weaving process is to wind by adopting a lower pressure ro