A water-saving yarn dyeing method
A yarn dyeing and cotton yarn technology, applied in the field of textile industry, can solve the problems of environmental pollution, high cost of wastewater treatment, etc., achieve the effect of reducing the water change process, large economic and social benefits, and reducing water consumption and sewage discharge
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Embodiment 1
[0021] The pretreatment process improvement of embodiment 1 cotton yarn
[0022] Put 100kg of cotton yarn into a container, add 800kg of water, 5kg of hydrogen peroxide, and 1.5kg of sodium hydroxide to rinse at 110°C for 50 minutes; cool down to 80°C without changing the water, add 0.15kg of hydrogen peroxide remover OXCUTTER HOP to remove Oxygen for 20 minutes; after the hydrogen peroxide is removed, discard the water in the container, add 400kg of water and 400ml of glacial acetic acid to neutralize the acid at room temperature. The pretreatment of 100kg cotton yarn consumes 1200kg of water in total.
[0023] As a comparison, the original process is briefly listed below (only the water consumption of each step is listed, and other conditions are omitted): Boiling yarn (800kg water)---hot water washing (800kg water)---pickling (acetic acid, 800kg water)- --Hot water washing (80℃, 800kg water) ---Cold water washing (room temperature, 800kg water), 100kg cotton yarn pretreatm...
Embodiment 2
[0024] Example 2 Improvement of post-treatment process of extra light-colored cotton yarn
[0025] Take 100kg of pre-treated cotton yarn and dye it with 0.1kg of reactive red dye (based on the weight of cotton yarn, the same below). After dyeing, 400kg of water and 400ml of glacial acetic acid are used for acid neutralization at 60°C; Remove the acid solution, re-add 400kg of water, wash at 80°C for 8 minutes, discard the hot water, re-add 400kg of water, wash at room temperature for 8 minutes, discard the cold water, add 5kg of amino silicone oil and 400kg of water, soften at 50°C for 120 minutes. Post-treatment consumes 1600kg of water in total.
[0026] As a comparison, the original process is briefly listed as follows: Finished dyeing --- cold water washing (800kg water) --- pickling (acetic acid, 800kg water) --- hot water washing (800kg water) --- cold water washing (800kg water) ---Softening (softening agent, 800kg water), after-treatment consumes a total of 4000kg of ...
Embodiment 3
[0027] The post-treatment process improvement of embodiment 3 light-colored cotton yarn
[0028] Take 100kg of pre-treated cotton yarn and dye it with 0.8kg reactive yellow dye. After dyeing, wash 800kg of water at 60°C for 8 minutes, discard the water, add 400kg of water and 400ml of glacial acetic acid to carry out acid neutralization at room temperature; Discard the acid solution after the treatment is completed, add 800kg of water and 0.6kg of high-efficiency soaping agent EX-961, and soap at about 90°C for 16 minutes; discard the soaping solution, add 400kg of water and wash at 60°C for 8 minutes, then discard the heat Water, add 400kg of water again, wash at room temperature for 10min, discard the cold water, add 8kg of amino silicone oil and 400kg of water, soften at 50°C for 20min. Post-treatment consumes 3200kg of water in total.
[0029]As a comparison, the original process is briefly listed as follows: Finished dyeing --- cold water washing (800kg water) --- pickli...
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