I believe you have a certain understanding of potassium hydroxide. Although it has certain toxicity, it also plays a great role in many industries, including alkalinity. Today, I mainly share with you its application in the printing and dyeing industry.
1. Soda ash is slow in coloring, which is caused by the addition of alkali. It is especially sensitive to color. It can not only reduce the time of alkali, but also greatly reduce many defects of color flower dyeing production, effectively improve product quality and reduce maintenance, and save costs. Potassium hydroxide is used to replace the solid color of soda ash. Even if 1 / 10 of soda ash is used to replace the solid color, enough color can be ensured. In the process of operation, if you accidentally add too much of this product, the color of the fiber will not be affected.
2. Due to the use of less fixing alkali, it is easy to clean after dyeing, which greatly reduces the white spots caused by cleaning after dyeing with alkali dyes, and has better rubbing fastness and washing fastness than soda water.
3. Reduce the washing times after dyeing, save "pickling", make the fiber neutral, shorten the process time and reduce the cost.
4. Because of nearly ten times of soda ash and several times of washing, the residual COD value of dyeing is low, the treatment load of dyeing wastewater is reduced and the environmental pollution is reduced, which also creates favorable conditions for the expansion of the factory.
Potassium hydroxide is also suitable for a variety of reactive dyes, so it has strong adaptability, high luster and reproducibility, so it is a good dyeing material, especially in the low bath ratio and the advantages of aerosol dyeing machine are more obvious, you can try.