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A production process of polyester warp-knitted fabric roofing strip

A production process, warp-knitted fabric technology, applied in fiber types, textiles and papermaking, fiber processing, etc., can solve the problems of pattern deformation, non-obvious improvement of polyester warp-knitted tensile properties, deformation, etc., to achieve production process steps reasonable effect

Active Publication Date: 2017-11-07
ZHANGJIAGANG HONGYUN WOVEN LABEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned traditional crown strips are not stiff enough, and the improved technical solution uses polyester warp-knitted cloth
However, the polyester warp knitted fabric will undergo irreversible deformation after being subjected to tension, which will cause the pattern to deform or even fall off.
Conventional fabric sizing treatment does not significantly improve the tensile properties of polyester warp knitted fabrics

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The production process of the polyester warp-knitted roofing strip includes the following steps:

[0024] S1: Arrange the polyester warp knitted fabric in a sodium hydroxide solution with a mass fraction of 2-8%, raise the temperature to 80-95°C and keep it warm for 30-50 minutes, take out the polyester warp-knitted fabric, wash and dry it;

[0025] S2: Introduce the fabric obtained in S1 into the finishing agent for padding and finishing, and heat-cure to obtain a stiff fabric;

[0026] S3: Slitting the stiffened fabric obtained in S2 into strips of predetermined width along the warp direction to obtain a top-covering strip of polyester warp-knitted fabric;

[0027] The main components of the styling finishing agent are acrylate emulsion and lactide grafted starch, and the weight percentage of the lactide grafting starch in the styling finishing agent is 0.5%.

[0028] Example 1 A commercially available acrylate polymer emulsion with a solid content of 30±1 was used t...

Embodiment 2

[0030] The difference between embodiment 2 and embodiment 1 is:

[0031] In S1, the polyester warp knitted fabric is placed in a sodium hydroxide solution with a mass fraction of 8%, the temperature is raised to 95°C for 50 minutes, and the polyester warp knitted fabric is taken out to be washed and dried;

[0032] The preparation method of the acrylate emulsion is: stir and mix 70 parts of deionized water and 2 parts of reactive emulsifier to obtain a pre-emulsion; dissolve 0.5 part of initiator with 3% emulsion to obtain an initiator solution; take 1.2 Mix one part of functional monomer, 11 parts of hard monomer and 8 parts of soft monomer to obtain mixed monomer; take 20% of mixed monomer, 0.5 part of pH buffer and the remaining emulsion for pre-emulsification for 35 minutes, then raise the temperature to 75°C, Add the initiator solution dropwise, and after 1.5 hours of reaction, add the remaining initiator solution and mixed monomers dropwise. After the dropwise addition, ...

Embodiment 3

[0035] The difference between embodiment 2 and embodiment 1 is:

[0036] S1: Arrange the polyester warp knitted fabric in a sodium hydroxide solution with a mass fraction of 5%, raise the temperature to 90°C and keep it warm for 40 minutes, take out the polyester warp knitted fabric, wash and dry it;

[0037] The preparation method of the acrylate emulsion is as follows: stir and mix 90 parts of deionized water and 0.5 parts of reactive emulsifier to obtain a pre-emulsion; dissolve 0.1 part of the initiator with 50% of the emulsion to obtain an initiator solution; take 3 Mix one part of functional monomer, 5 parts of hard monomer and 14 parts of soft monomer to obtain a mixed monomer; take 10% of mixed monomer, 1.5 parts of pH buffer and the remaining emulsion for pre-emulsification for 25 minutes, then raise the temperature to 85°C, Add the initiator solution dropwise. After reacting for 1 hour, add the remaining initiator solution and mixed monomer dropwise. After the dropwi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention belongs to the technical field of clothing and hat accessories, and discloses a process for producing a polyester warp knitted fabric crown-covering strip. The process comprises the steps of polyester alkali deweighting, pad finishing and slitting. A stabilized finishing agent used in the pad finishing is mainly composed of an acrylate emulsion and a lactide grafted starch, and the percentage by weight of the lactide grafted starch in the stabilized finishing agent is 0.5-5%. The process for producing a polyester warp knitted fabric crown-covering strip is reasonable in steps. A film covered bonded structure is formed between the polyester fibers of the warp knitted fabric by performing alkali deweighting and stiffening finishing using the stabilized finishing agent on the polyester warp knitted fabric, with the film and the polyester fibers stressed simultaneously, resulting in increase of a maximal acting force for resilience of the polyester warp knitted fabric resilience after being stressed; therefore, the structure is conducive to maintaining complete surface of the warp knitted fabric and complete patters on the surface.

Description

technical field [0001] The invention relates to the technical field of textile auxiliary materials, in particular to a production process of a polyester warp-knitted top-covering strip. Background technique [0002] In order to ensure that the wearer feels more comfortable, the inner seam of the hat body is bound and stitched with a top covering strip. The function of the top covering strip is not only to avoid the friction of the suture on the top of the wearer's head, but also to cooperate with the seam to keep the convex surface of the top of the cap body in the designed radian, avoiding deformation after long-term use and repeated washing and folding. Covering strips are mostly made of pure cotton fabric or blended with other synthetic fibers. In order to achieve the effect of marking, the top covering strips in the prior art have printed patterns on one side. However, the above-mentioned traditional hat crown has insufficient stiffness, and the improved technical solut...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/263D06M15/333D06M15/356D06M15/11D06M15/643D06M15/647D06M15/01D06M101/32
CPCD06M15/01D06M15/11D06M15/263D06M15/333D06M15/3566D06M15/6436D06M15/647D06M2101/32
Inventor 赵伟林
Owner ZHANGJIAGANG HONGYUN WOVEN LABEL CO LTD
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