Denim green and gray plant pad-dyeing production process

Abstract

The invention discloses a denim green and gray plant pad-dyeing production process which comprises the following steps: firstly pre-treating cloth and putting the cloth into water with a water temperature of 50 DEG C to soak, wherein the soaking time is 10-15 minutes; secondly, wringing and putting the soaked cloth into an alizarin plant dye bath, wherein the water weight percentage of an alizarin plant dye is 0.5-5 percent; then heating the dye bath, rising the temperature to 60 DEG C at a temperature rise speed of 2 DEG C / min, dyeing for 30-60 minutes and taking out; then pouring 1 g / L of acetic acid solution firstly and then 0.5-3 g / L of ferrous sulfate solution into the dye bath according to the bath ratio of 1:20, rising the temperature to 40 DEG C, performing heat preservation for 30 minutes, taking out and washing; finally putting the dyed cloth into 5 g / L of neutral soap lotion, performing heat preservation for 10-15 minutes in the neutral soap lotion with a temperature of 65 DEG C, taking out, washing and drying to finish dyeing. Through the production process disclosed by the invention, a dyeing product has a health function, meanwhile can be cleaned and is difficult to de-color.

Description

technical field [0001] The invention relates to a fabric processing technology, in particular to a denim green gray plant pad dyeing production technology. Background technique [0002] With the improvement of people's living standards, people pay more and more attention to the quality of life and living environment. Natural dyes are biodegradable and do not affect the environment. Some natural dyes have health care functions, and most natural dyes are derived from plants, which can be expanded for planting. The industrial application of natural dyes is conducive to increasing the added value of textiles, and has significant economic and social benefits. [0003] Since the end of the 1970s, denim has undergone several major developments in my country. The current annual production capacity is estimated to have reached more than 1.5 billion square meters, and it has become an important producer of denim in the world. A large number of relatively advanced denim and denim c...

AI Technical Summary

Problems solved by technology

Denim is widely loved by urban women because of its wear resistance, thickness, and natural color. However, denim clothes are easy to fade when washed, which makes the color of denim clothes fade after repeated washing, which affects the appearance of clothes; Secondly, because the color fades during washing, the denim clothes must be washed separately from other clothes, which increases the workload and wastes time