Prickle and itch feeling-resisting finishing method for ramie fabric by imidazole ionic liquid

Abstract

The invention provides a prickle and itch feeling-resisting finishing method for a ramie fabric by imidazole ionic liquid. The method comprises the following steps: (1) heating 1-butyl-3-methylimidazole chloride to 90 DEG C; (2) putting the ramie fabric into a 26 percent (w/w) sodium hydroxide aqueous solution, soaking for 1min, washing, and drying; (3) padding the pretreated ramie fabric into a 1-butyl-3-methylimidazole solution for multiple times, wherein pick-up is 100 percent-120 percent; (4) heating the padded ramie fabric to 100 DEG C-120 DEG C, and keeping warm for 3h; (5) taking out the ramie fabric, putting into an ethanol/water solution, solidifying for 20min, then washing, and drying. The finishing method is simple and easy, and the finished ramie fabric has good prickle and itch feeling-resistance, and also remains the good characteristic of the original ramie fabric.

Description

technical field [0001] The invention belongs to the technical field of textile dyeing and finishing, in particular to an anti-itch finishing method of imidazole ionic liquids on ramie fabrics. Background technique [0002] Ramie is a unique fiber raw material in my country, also known as "Chinese grass", with a long and splendid history. Ramie fiber is a kind of natural cellulose fiber, which has good air permeability, good moisture absorption and release performance, and has a cool feeling when worn. It is especially suitable as a fabric for summer clothes. The degummed ramie fiber has a silky luster, and its fabric has the advantages of crispness, coolness, breathability, lightness, antibacterial, health care, etc. Therefore, ramie fabric is more and more favored by consumers. [0003] However, ramie fiber has high rigidity, stiffness and stiffness, poor fiber cohesion during spinning, loose yarn structure, and more hairiness, and the resulting fabric will produce a tingl...

AI Technical Summary

Problems solved by technology

Ramie cellulase can dissolve and weaken the microfibrils on the surface of ramie fibers, and peel off layer by layer from the surface to the inside, which is beneficial to reduce fiber stiffness, improve hand feel and eliminate itching, but it is also easy to reduce the strength of the fabric

Resin covering finishing is to cover the surface of ramie fiber with polymers such as polyurethane, so that the microfibers on the surface of the fiber cannot touch human skin, thereby eliminating the itching feeling, but this method also makes the fabric lose the excellent characteristics and skin-friendly feeling of ramie fiber