Rayon fabric dyeing and finishing method
A cotton fabric and fabric technology, applied in the field of dyeing and finishing of rayon fabrics, can solve the problems of blurry and rough printing effect, unsatisfactory market response, low added value, etc., and achieves good hand feeling, rich luster and good dyeing effect. Effect
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Embodiment 1
[0019] A dyeing and finishing process for rayon fabric containing acrylic yarn, including the following steps: (1) Acrylic yarn and rayon yarn are used to twist the composite twisted yarn to form a primary woven rayon fabric, in which the acrylic yarn and rayon yarn are combined The weight ratio is 5:10; (2) Dyeing pretreatment of the primary woven rayon fabric: placing the primary woven rayon fabric in a dyeing pretreatment solution for cooking, and the dyeing pretreatment The temperature is 60°C, the solution includes 0.20g / L of defoaming agent, the defoaming agent is polyoxyethylene octylphenol ether, and the dispersing agent is alkyl alcohol ether sulfosuccinic acid monoester disodium salt 5g / L The penetrant is 6 g / L of sulfated castor oil, 0.20 g / L of sulfuric acid, 0.20 g / L of bleaching powder, calcium hypochlorite is the main component of the bleaching powder, and the effective chlorine content of the bleaching powder is 28 (wt)%. , Sodium bicarbonate 3g / L, hydrogen pero...
Embodiment 2
[0021] A dyeing and finishing process for rayon fabric containing acrylic yarn, including the following steps: (1) Acrylic yarn and rayon yarn are used to twist the composite twisted yarn to form a primary woven rayon fabric, in which the acrylic yarn and rayon yarn are combined The weight ratio is 3:10; (2) Dyeing pretreatment of the primary woven rayon fabric: placing the primary woven rayon fabric in a dyeing pretreatment solution for cooking, and the dyeing pretreatment The temperature is 50°C, the solution includes 0.15g / L defoamer, octylphenol polyoxyethylene ether, 4g / L dispersant, and alkyl alcohol ether sulfosuccinic acid monoester. Disodium salt, penetrant 4g / L, penetrant is sulfated castor oil, sulfuric acid 0.10g / L, bleaching powder 0.10g / L, the main component of bleaching powder is calcium hypochlorite, the effective chlorine content of the bleaching powder is 20 (wt )%. , Sodium bicarbonate 1g / L, hydrogen peroxide 3g / L, glacial acetic acid 0.20g / L, sodium phospha...
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