A post-treatment method for dyeing protein fiber fabrics with natural dyes
A protein fiber and natural dye technology, which is applied in the post-treatment field of protein fiber fabrics dyed with natural dyes, can solve the problems of natural dyes with insignificant acid-base stability effects, improve color fastness to soaping, and improve acid-base resistance The effect of stability
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Embodiment 1
[0019] The processing method of embodiment 1 natural dye dyed real silk fabric
[0020] (1) Dyeing of silk fabrics: According to the bath ratio of 1:40, the fabric is added to the dyeing bath containing 1.0 g / L natural dye red beige red pigment, 0.5 g / L leveling agent Pingping plus O, and the pH is adjusted to 4.0, heat up to 90°C, and dye at a constant temperature for 60 minutes. After dyeing, wash and dehydrate.
[0021] (2 treatment: the dyed silk fabric is added to the treatment bath containing 2.0g / L chitosan-methacrylic acid polymer, 0.5 g / L nonionic surfactant AEO9, the control bath ratio is 1:50, and the temperature is raised to Treat at 80°C for 45 minutes, take out the fabric, and dehydrate. Then add the fabric to a treatment bath containing 0.5 g / L alum, pH=5, treat at 50°C for 30 minutes, take out the fabric, dehydrate, wash with hot water and cold water until neutral, Dehydration and drying at 105°C.
Embodiment 2
[0022] The processing method of embodiment 2 natural dye dyed wool fabrics
[0023] (1) Dyeing of wool fabric: According to the bath ratio of 1:40, the fabric is added to the dyeing bath containing 2.0 g / L natural dye shellac pigment, 0.5 g / L leveling agent Pingping plus O, and the pH is adjusted to 4.0 , heated to 90°C, and dyed at a constant temperature for 60 minutes. After dyeing, wash and dehydrate.
[0024] (2 processing: the dyed wool fabric is added to the treatment bath containing 4.0g / L chitosan-methacrylic acid polymer, 1.0 g / L nonionic surfactant AEO9, the control bath ratio is 1:50, and the temperature is raised to Treat at 80°C for 45 minutes, take out the fabric, and dehydrate. Then add the fabric to a treatment bath containing 1.0 g / L alum, pH=5, treat at 50°C for 30 minutes, take out the fabric, dehydrate, wash with hot water and cold water until neutral, Dehydration and drying at 115°C.
[0025] The processing method of control sample 1:
[0026] (1) Dyei...
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