A kind of alkaline bath dyeing method of nylon 56 fiber fabric

Abstract

The invention discloses a method for basic bath dyeing of nylon 56 fiber fabric. According to the method, the nylon 56 fiber fabric is dyed with vat dye or activated dye, wherein the nylon 56 fiber fabric is nylon 56 filament or nylon 56 short fiber fabric. Due to the difference in crystallization, the acid-base resistance of nylon 56 is quite different from that of ordinary nylon 6 and nylon 66. Under the same treatment condition, the fiber strength of nylon 56 is much lower, and thus nylon 6 and nylon 66 dyeing processes which are mostly studied are not completely applicable to dyeing of nylon 56. In the method, activated dye and nylon 56 are boned through covalent bonds, firmness is higher than that of ionic bonding in an acid bath, dyeing temperature is lower than that of a conventional dyeing method, and damage to fabric can be reduced by the adoption of low-temperature dyeing.

Description

technical field

[0001] The invention relates to an alkaline bath dyeing method of nylon 56 fiber fabric. Background technique

[0002] Nylon fabric is the first synthetic fiber to appear in the world. The appearance of nylon (foreign names include nylon, nylon, capron, etc.) makes textile fabrics look brand new. Its synthesis is a major breakthrough in the synthetic fiber industry. Nylon is a poly The domestic product name of amide fiber, it has many varieties, but the molecular structure contains the same amide group. The commonly used varieties are polycaprolactam for nylon-6, and polycaprolactam for nylon-66, which is formed by the polymerization of hexamethylenediamine and adipic acid. , Nylon 56 is a new type of polyamide fiber. Unlike nylon 66, which uses petroleum raw materials, it uses biological raw materials. Pentamethylenediamine is fermented from various starches and straw cellulose by bioengineering methods. Due to large quantities , low cost, it can replace he...