Bleaching work fluid of flax, flax/cotton fabric and low temperature bleaching technology

Abstract

The invention discloses a bleaching working fluid of the flax fabric or flax / cotton fabric and a low-temperature bleaching technology using the working fluid. One formula of the bleaching working fluid is as follows: each liter of the working fluid comprises the following ingredients: 1-20g / L of H2O2 with the concentration of 30 percent, activating agent TAED (Tetra Acetyl Ethylene Diamine) with the mol ratio of 1 / 15:1-1:1 with the H2O2, 0.1-10g / L of stabilizing agent, 0.1-5g / L of penetrating agent and the rest is water. The low-temperature bleaching technology adopting the bleaching working fluid formula is the bleaching technology in low-temperature bath. Another formula of the bleaching working fluid is as follows: each liter of the fluid comprises 10-50g / L of H2O2 with the concentration of 30 percent, activating agent TAED (Tetra Acetyl Ethylene Diamine) with the mol ratio of 1 / 15:1-1:1 with the H2O2, 0.1-10g of stabilizing agent and the rest is water. The low-temperature bleaching technology adopting the bleaching working fluid formula is cold pad-batch bleaching technology. The invention adopts the TAED as the activating agent, introduces oxydol / TAED bleaching system, has better bleaching effect, can reduce the damage of the fabrics and improves the production efficiency.

Description

technical field [0001] The invention relates to a textile pretreatment process, in particular to a flax, linen / cotton fabric bleaching working liquid and a low-temperature bleaching process using the working liquid. Background technique [0002] Flax is an important raw material for the hemp textile industry, and its fibers are strong and soft. Flax fiber is strong, not easy to rot in water, and has waterproof effect. In addition, it has unique advantages such as friction resistance, high temperature resistance, fast heat dissipation, poor dust adsorption, not easy to tear, not easy to burn, no static electricity, etc. It is green and environmentally friendly. important textile raw materials. Linen yarn can be machine-woven into all kinds of high-grade clothing fabrics, clothing and socks fabrics, denim fabrics, etc. The fabrics are smooth and tidy, natural and crisp, elegant and high-end, suitable for making high-end clothing materials, especially summer clothing, with goo...

AI Technical Summary

Problems solved by technology

The development of low-temperature oxidation additives, the formation of a low-temperature efficient oxidation system and the development of a reasonable cold pad batch bleaching process are effective ways to solve the above problems, so that flax and flax / cotton fabrics can be bleached at room temperature, but conventional cold pad batch bleaching The process requires a large amount of NaOH (generally 40g / L ~ 50g / L), and takes a long time (about 24h), which will cause great damage to the fabric itself

[0005] Research on the application of hydrogen peroxide / activator bleaching system in the bath of flax or flax / cotton fabrics: Lin Huiju and Song Keqiang once used urea as the activator, and they found that it was feasible to use urea as the activator for bleaching, which not only increased the whiteness, Moreover, the loss of strength is reduced, but the ability of urea to activate hydrogen peroxide is still not strong enough

Images