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Sulfur dyes, sulfur black and sulfite blue, are used in many types of dyes. The blackness of the dyed products after vulcanization black dyeing is very good, but the phenomenon of brittleness occurs during storage, and it is generally required before the finished product is finished.
Do anti-embroidery treatment. The oxidation process after dyeing leucoindigo was done with erythromycin sodium (or potassium erythronium) as the oxidant. Now it is necessary to switch to an environmentally friendly oxidant. This must be taken care of when dyeing with sulphur dyes.
In recent years, the requirements for environmental protection have become higher and higher. However, sulfur dyes are still in use and have not been eliminated. The liquid sulphur dyes prepared as leucosomes have made great progress. They are more convenient to use and meet the requirements of energy saving and environmental protection, especially in the dyeing of denim fabrics.
Second, sulfur dye dyeing process
1. Sulfur dyes
Dyeing â†’ Washing â†’ (Pickling) â†’ (Oxidation) â†’ Washing (Soaping) â†’ Washing â†’ (Fixing or Preventing Embrittlement) â†’ Cold Water Rolling â†’ Drying
1. Sulfur dyeing
Dip pad dyeing liquid â†’ steaming (breathing) â†’ washing â†’ pickling â†’ oxidation â†’ washing â†’ soaping â†’ washing â†’ drying
For liquid sulphur dye padding, whether it needs to be steamed or not should be determined according to customer requirements, and it is also related to the performance and brand of liquid sulphur dyes. If the customer requires good color fastness, it must be steamed and fixed; if the customer requires the dyed product to have a water-washing and fading effect, there is no need for steaming (generally used for the dyeing of denim and washed cloth), steam is not allowed to open in the steamer. ) It's OK.
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Jogging Wear,Jogging Suits,Men Jogging Suits,Jogging Clothes
Guangzhou LIDONG Garment Industrial Co., Ltd. , https://www.lidongsports.com