A processing method of flame-retardant and anti-ultraviolet polyester outer bonded yarn

Abstract

The invention discloses a processing method for flame-retardant and anti-ultraviolet polyester outer bonded yarns. Polyester filaments are twisted into strands, and then treated in the same bath with flame-retardant and anti-ultraviolet finishing liquid and resin adhesive, and then processed under high temperature. Adhesively form a layer of transparent soft adhesive film on the surface of the strands to make a flame-retardant and anti-ultraviolet polyester outer bondy thread. The invention uses polyester filaments to make the outer bonded thread, which has the characteristics of high strength, no fluff, no continuous thread, no loose strands, high temperature resistance, no decolorization, waterproof, mildew resistance and other characteristics. The invention uses a softener to treat the polyester outer Bondi thread, endows the outer Bondi thread with a soft feel, the formula of the glue solution is reasonable, and is convenient to configure, and the performance of the Bondi thread is improved from two aspects of flame retardancy and ultraviolet resistance, and the collection resistance is realized. Combustibility, anti-ultraviolet, anti-aging, and high strength are integrated goals. The preparation process is simple and the processing process is simplified. The polyester strands are treated with finishing and gluing in the same bath, which has the advantages of water saving, energy saving, environmental protection and high efficiency.

Description

technical field [0001] The invention specifically relates to a processing method of a polyester outer bonded yarn combining flame-retardant, anti-ultraviolet finishing and glue bonding. Background technique [0002] As the general sewing thread passes through the eye of the needle and is squeezed by the fabric, it is easy to twist and untwist, causing loose strands to break. The Bondi line is not easy to loose strands, has high strength, and is not easy to break. The outer Bondi thread is drawn and glued with a single thread, and the strands are bonded from the outside. The outer Bondi thread has low production cost and simple process. [0003] In addition to the advantages of ordinary Bondi threads, polyester outer Bondi threads also have the properties of high temperature resistance, no stretching, no discoloration, no lint, etc., and are waterproof and mildew-proof. They are suitable for making shoes, leather goods, handbags, bags, Toys, ribbons, wire weaving, clothing ...

AI Technical Summary

Problems solved by technology

However, there are still defects in some polyester outer Bondi threads on the market: 1. The limiting oxygen index of polyester fiber is about 22%, which is a combustible fiber, and it will melt and drip when burned, igniting other polymer materials or scalding the skin; 2. The production of polyester bondy thread is to comply with the market's requirements for strength, but under long-term sunlight, polyester bondy thread will inevitably age, fade, and decrease in strength; third, among all polyester flame retardants, the halogen flame retardant The agent is effective, but produces smoke and corrosive hydrogen halide gas when burned

At the same time, it solves the problem that the fabric is flame-retardant but the sewing thread is not flame-retardant, which leads to the decrease of the flame retardancy of the sewn product.

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