Nanoscale foam dyeing and finishing functional solution and dyeing and finishing process

Abstract

The invention relates to a preparation method for a nanoscale foam dyeing and finishing functional solution. Nanoscale bubbles are added into aqueous alkaline solution / acidic solution, and thereby thenanoscale foam dyeing and finishing functional solution is obtained; when alkaline ionized water is contained in the solution, the pH value is 9 to 13.5, and the reduction potential is negative 450 mV to negative 1300 mV; when acidic ionized water is contained, the pH value is 2.6 to 6.5, and the oxidation potential is 550 mV to 900 mV. The invention further provides a dyeing and finishing process: the nanoscale foam dyeing and finishing functional solution is used for dyeing a fabric, and the fabric is then rinsed once or three times; and naturally reclaimable nanoscale foam functional wateris adopted to carry out cellulose fiber pretreatment and dyeing treatment. The traditional processes (such as long-time high-temperature desizing, scouring and bleaching, mercerization and the like required by cellulose fibers) which use a great deal of caustic soda can be optimized, moreover, a great deal of acid and alkali used in traditional dyeing can be replaced, defects, such as easy fiberstrength reduction, silk injury and heavy pollution, are overcome, and a high-fidelity dyeing effect of alkali-free energy-saving emission-reducing production is achieved.

Description

technical field [0001] The invention relates to the technical field of textile dyeing, in particular to a nanobubble dyeing and finishing functional liquid and a dyeing and finishing process. Background technique [0002] Reactive dyes can be used not only for cellulose fibers such as cotton and linen, but also for dyeing protein fibers such as silk and wool. They are the most widely used dyes. In order to achieve good dyeing properties of the most widely used cellulose fibers such as cotton and hemp, the traditional technology usually uses water as the medium, and uses a large amount of caustic soda and surfactant compound solution to dye the dye at a temperature as high as 100°C or even under high temperature and high pressure. It carries out pretreatment and scouring processing to remove natural impurities such as waxy substances, pectin substances, nitrogenous substances, cottonseed hulls and natural pigments contained in cellulose fibers such as cotton and hemp, so that...

AI Technical Summary

Problems solved by technology

[0003] Long-term high-temperature treatment not only brings great energy consumption, alkali agent consumption and production safety problems, but also the pollution of the medium base liquid caused by sodium hydroxide and dyeing auxiliaries, and it is necessary to neutralize the printing and dyeing waste liquid A large amount of acid liquid is used, and a large amount of salt is generated, resulting in an increase in the AOX value, BOD and COD in the printing and dyeing waste liquid, resulting in a large consumption of resources, a large increase in wastewater treatment costs, and a decrease in fiber strength.