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Coating method capable of improving wear resistance of polyester harness cord

A wear-resistant and thread-like technology, applied in abrasion-resistant fibers, jacquard machines, textiles, etc., can solve the problems of poor interface performance and low abrasion resistance of thread, achieve good film-forming properties and improve adhesion. , strong coverage effect

Active Publication Date: 2018-06-29
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can effectively improve the wear resistance of the through yarn, so as to solve the defects of the poor interface performance between the coating and the polyester fiber in the prior art and the low wear resistance of the through yarn, so that it can meet the long-term application of the jacquard loom

Method used

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  • Coating method capable of improving wear resistance of polyester harness cord
  • Coating method capable of improving wear resistance of polyester harness cord
  • Coating method capable of improving wear resistance of polyester harness cord

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Pretreat the woven polyester through-filament, use 75% ethanol to remove the spinning oil on the surface at room temperature, and then dry it; it is immersed in a prepared concentration of 6% water-based polyurethane slurry (due to water-based Polyurethane slurry is liquid, has certain solid content, is 6% for guaranteeing the solid content of water-based polyurethane, and the water-based polyurethane and water content that actually adds are shown in Table 1) and carry out padding, padding sizing rate is 1.47%, then The excess slurry was rolled off, dried at 130°C, and then heat-set at 195°C and under a tension of 14.7N. The heat-set elongation was 6% to obtain polyurethane-coated polyester harness.

[0024] The polyester harness coated with polyurethane in this embodiment was tested for abrasion and fracture by using a special abrasion tester for the harness. The test conditions were: speed 440r / min, tension 14N. The results of the number of times of wear and fracture ...

Embodiment 2

[0031] Pretreat the woven polyester through-filament, use 75% ethanol to remove the spinning oil on the surface at room temperature, and then dry it; impregnate it in prepared 0.5%, 1%, 1.5% ethanol Water-based polyurethane pre-primer (since the water-based polyurethane slurry is liquid and has a certain solid content, in order to ensure that the solid content of the water-based polyurethane is 0.5%, 1%, and 1.5%, the actual added water-based polyurethane and water content are shown in Table 3 ), the padding sizing rates were 0.05%, 0.19%, and 0.28%, respectively, and then the excess slurry was rolled off, and dried at 130°C and under a tension of 4.4N to obtain three different concentrations of polyurethane-treated polyester yarns. Respectively dipped in PVA1788 slurry (see Table 4 for formula) for padding, the padding sizing rate was 3.62%, 3.73%, 3.50% respectively, rolled off excess slurry, dried at 130°C, then 195°C and 14.7% Heat setting treatment under N tension, heat s...

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Abstract

The invention relates to a coating method capable of improving wear resistance of a polyester harness cord. The method comprises the following steps: waterborne polyurethane size is taken as coating size, the pretreated polyester harness cord is impregnated in the coating size for padding, then drying and heat setting are performed, and the coated polyester harness cord is obtained; or the waterborne polyurethane size is taken as pre-applied primer size, another size is taken as the coating size, the pretreated polyester harness cord is impregnated in the pre-applied primer size for padding, and drying is performed; then the polyester harness cord is impregnated in the coating size for padding, drying and heat setting are performed, and the coated polyester harness cord is obtained. Selected waterborne polyurethane is safe, non-toxic and good in film forming property, the solubility parameter of waterborne polyurethane is close to that of polyester, and waterborne polyurethane has excellent adhesion and can effectively improve the adhesion effect between other coatings and polyester fibers; permeability of the polyester harness cord is good, coated property is good, and a uniform coating which is smooth, soft, not prone to yellowing and is resistant to wear, heat and light can be formed on the surface of the polyester harness cord.

Description

technical field [0001] The invention belongs to the technical field of textiles, in particular to a coating method for improving the wear resistance of polyester through-filaments. Background technique [0002] The harness is one of the main lifting parts of the opening device of the jacquard loom. When the loom is running at high speed, the friction of the mesh plate will reduce the mechanical properties of the harness, and further wear will cause the harness to break and reduce the weaving efficiency. Therefore, the wear resistance of the harness is very important, and coating the harness is an effective method that can significantly improve its wear resistance. [0003] At present, the fiber material used to make harnesses is mainly polyester filaments. Due to the symmetrical molecular structure of polyester, high crystallinity, and lack of high polar groups in macromolecules, its hydrophilicity is poor, which makes the coating of polyester harnesses posed difficulties. ...

Claims

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Application Information

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IPC IPC(8): D06M15/564D06M15/09D06M11/46D03C3/40D06M101/32
CPCD03C3/40D06M11/46D06M15/09D06M15/564D06M2101/32D06M2200/35D06M2200/40
Inventor 徐广标解开放
Owner DONGHUA UNIV
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