Finishing Method for Improving Durable and Waterproof Function of Nylon Fabric

Abstract

The invention provides a finishing method for improving the durable waterproof function of nylon fabric, comprising the following steps: (1) providing a dyed nylon fabric; (2) using a pretreatment working solution to pretreat the dyed nylon fabric, the pretreatment The treatment working liquid contains finishing agent DMY‑3683 and crosslinking agent DMY‑3684; (3) Waterproof finishing of pretreated dyed nylon fabric. The invention has the advantage that after the nylon fabric is dyed, the nylon fabric is directly pretreated with a pretreatment liquid containing a finishing agent and a crosslinking agent, and then waterproof finishing is performed after the pretreatment. Using the pretreatment process instead of the conventional color fixing process can improve the washability of the waterproof finishing, which is better than the effect of adding a bridging agent in the waterproof finishing, and the final color fastness is equivalent to that of the conventional process. The invention does not increase the processing steps, does not reduce the color fastness, and can significantly improve the durable washability of the waterproof function.

Description

technical field [0001] The invention relates to the field of textile printing and dyeing, in particular to a finishing method for improving the durable waterproof function of nylon fabrics. Background technique [0002] Nylon fiber is the fiber with the best hygroscopicity among synthetic fibers, and has high strength and impact resistance. It is widely used in industrial textiles, decorative fabrics and clothing fabrics, such as cord fabrics, ropes, parachutes, sportswear, down jackets, military uniforms, Outdoor clothing fabrics, etc., and waterproof functional finishing is one of the most commonly used chemical functional finishing methods in nylon textiles. [0003] Waterproof finishing is to apply a waterproof agent when the fabric is shaped, and cross-linking occurs on the fabric surface after baking to reduce the surface tension of the fiber and realize the waterproof function. During the washing process, the waterproofing agent is easy to fall off from the fiber, re...

AI Technical Summary

Problems solved by technology

During the washing process, the waterproofing agent is easy to fall off from the fiber, resulting in a decline in the waterproofing effect, and the washing resistance is often improved by adding isocyanate bridging agents during finishing, but the bridging agents are expensive and still cannot meet the requirements of repeated washing After the waterproof function requirements

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