Polyamide fiber and polyester fiber compounded synthetic leather and processing process

Abstract

The invention belongs to the technical field of synthetic leather production, and particularly relates to a polyamide fiber and polyester fiber compounded synthetic leather and a processing process. The preparation process of an outer layer comprises the following steps that S1, polyester fiber, oligomer polyethylene glycol and diethylaminoethyl methacrylate are blend spun to obtain composite fibers, the composite fibers are treated with an antistatic agent, and antistatic fibers are obtained; S2, oligomer polyethylene glycol is added to the antistatic fibers, fusion is carried out, and antistatic melt is obtained; S3, polyamide fibers and the oligomer polyethylene glycol are mixed and fused to obtain mixed melt; S4, the antistatic melt is adopted as a core, the mixed is obtained as a skin, composite spinning is carried out, and composite fibers are obtained; S5, the composite fibers are treated with a softener and a surface active agent, and finished fibers are obtained; and S6, the finished fibers and hydrophilic fibers are blend spun, and an outer layer is obtained. The synthetic leather has the advantages of being good in wear resistance, high in breaking strength, good in elasticity, good in moisture rate, good in antistatic performance and the like.

Description

technical field [0001] The invention belongs to the technical field of synthetic leather production, in particular to a polyamide fiber and polyester fiber composite synthetic leather and a processing technology. Background technique [0002] All kinds of artificial synthetic leather have their own advantages and disadvantages. In order to combine these properties, composite materials are used. Composite materials include ordinary composite fabrics and functional composite fabrics. At the same time, traditional synthetic leather uses cotton or polyester / cotton yarn as the base fabric. This kind of synthetic leather has good dimensional stability and strong air permeability, but its elasticity is poor, and its flatness, uniformity, and surface style are not ideal. , therefore need to manufacture a kind of new composite synthetic leather. [0003] There are also some solutions in the prior art. For example, in the Chinese patent with the application number CN201310640743.0, ...

AI Technical Summary

Problems solved by technology

[0007] Among them, polyamide fiber has high strength and good wear resistance. Adding part of polyamide fiber to the blended fabric can effectively improve the wear resistance of the fabric, and at the same time ensure that the fabric has good resilience. After adding polyamide fiber, it can reduce the weight of the fabric. Improve the air permeability, dyeability and heat setting of the fabric; the polyester fiber has high breaking strength and elastic modulus, moderate resilience, excellent heat setting effect, good heat resistance and light resistance, and the shape of the polyester fiber fabric is stable during use. It is washable and wearable, and at the same time, has good resistance and corrosion resistance; by adding oligomer polyethylene glycol, polyacrylate antistatic agent and polyoxyethylene ether nonionic antistatic agent and polyamide fiber Copolymerization with polyester fibers can improve the defects of polyamide fibers and polyester fibers, increase the moisture absorption rate of composite fibers, prevent polyamide fibers and polyester fibers from generating static electricity during processing, and cause fiber filaments to attract and entangle with each other, affecting processing. , avoid the polyamide fiber and polyester fiber contained in the finished product from causing the fabric to be electrified, making the fabric entangled on the user's body, and electrostatically absorbing dust, causing the fabric to be dirty. At the same time, avoiding the electrostatic discharge generated on the fabric, causing safety hazards Or interfere with the normal operation of electronic equipment; the blending of hydrophilic fiber and polyester fiber can reduce or eliminate the shortcomings of polyester fiber while ensuring the excellent characteristics of polyester fiber itself, and obtain composite fibers with better performance to improve product quality and performance;

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