Low-carbon bleaching method for human hair fiber
A technology of fiber and protease, which is applied in the direction of bleaching products, textiles and papermaking, etc., can solve the problems of high cost, environmental pollution, difficulty in achieving the required whiteness by oxygen bleaching, etc., and achieve low cost, good bleaching effect, good development prospects and economical value effect
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Embodiment 1
[0016] (1) Add 0.1% hydrogen peroxide, 2% serine protease and 1% citric acid respectively by human hair fiber weight, the bath ratio (weight ratio) is 1:5, heat up to 50°C at 1°C / min for 20min , raise the water at 2°C / min to 30°C, wash the human hair fiber with heat preservation water for 6 minutes, then drain it, then wash it with water at room temperature for 6-10 minutes, then drain it;
[0017] (2) Add 0.1% citric acid, 0.5% alkyl glucoside and 0.5% tetrasulfonate iron phthalocyanine respectively by human hair fiber weight, the bath ratio is 1:5, heat up to 50°C at 1°C / min for 20min , continue to add 2% hydrogen peroxide by weight of human hair fiber, the bath ratio is 1:5, irradiate under sunlight for 1 hour, and wash with water at room temperature for 10 minutes.
[0018] Table 1 Comparison of properties of unbleached human hair fiber and bleached human hair fiber
[0019]
Embodiment 2
[0021] (1) Add 4% hydrogen peroxide, 4.5% papain and 2.5% citric acid of human hair fiber weight respectively, the bath ratio (weight ratio) is 1: 7, heat up to 55°C for 30min at 2°C / min , raise the water to 35°C at a rate of 3°C / min, wash the human hair fiber with heat preservation water for 8 minutes, then drain it, then wash it with water at room temperature for 8 minutes, then drain it;
[0022] (2) Add respectively 5.1% cyclohubine by weight of human hair fiber, 2.8% alkyl glucoside and 1.25% tetramaleimido iron phthalocyanine, the bath ratio is 1: 7, and the temperature is raised to 60°C with 2° C. / min. After treatment at ℃ for 30 minutes, continue to add 4% hydrogen peroxide by weight of human hair fiber, the bath ratio is 1:7, irradiate in sunlight for 2 hours, and wash with water at room temperature for 20 minutes.
[0023] Table 2 Comparison of properties between unbleached human hair fiber and bleached human hair fiber
[0024]
Embodiment 3
[0026] (1) Add respectively 8% hydrogen peroxide, 7% serrapeptase and 4% citric acid of human hair fiber weight, the bath ratio (weight ratio) is 1: 10, and the temperature is raised to 60°C at 3°C / min Treat for 40 minutes, raise the water to 40 ℃ at 4 ℃ / min, wash the human hair fiber with heat preservation water for 10 minutes, then drain, then wash at room temperature for 10 minutes, then drain;
[0027] (2) Adding 10% fiber modifier of human hair fiber weight, 5% alkyl glucoside and 2% visible light photosensitizer, the bath ratio is 1:10, heat up to 70°C for 40min at 3°C / min, Continue to add 6% hydrogen peroxide by weight of human hair fiber, the bath ratio is 1:10, irradiate under sunlight for 3 hours, and wash with water at room temperature for 30 minutes.
[0028] Table 3 Comparison of properties of unbleached human hair fiber and bleached human hair fiber
[0029]
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