Degumming process of natural colorful silk
A colored silk and natural technology, applied in the field of silk, can solve the problems affecting the feel, color and comfort of silk fabrics, affecting the performance and use value of silk fabrics, and the loss of natural pigments, so as to achieve good glue fixing effect, reduce water solubility, prevent The effect of the loss of pigment
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Embodiment 1
[0024] Soak the natural colored raw silk in water at 40°C for 30 minutes to swell the sericin on the surface of the natural colored raw silk, then steam the natural colored raw silk, treat it at 100°C for 30 minutes, and clean it with deionized water.
[0025] Immerse the above-mentioned natural colored raw silk in a glutaraldehyde-citric acid solution, wherein the glutaraldehyde content is 0.02%, adjust the pH value to 3 with citric acid, and treat at 30°C for 5 hours to solidify the sericin on the surface of the natural colored raw silk, and use Rinse with deionized water.
[0026] Then soak the above-mentioned natural colored raw silk in a solution of 15% grafting agent WG, 3% ammonium persulfate and 40g / L of the amount of grafting agent sodium sulfate, bath ratio 1:50, adjust pH with citric acid 3, wash with deionized water;
[0027] Finally, soak the natural colored raw silk in 4g / L sodium carbonate and sodium bicarbonate solution, treat it at 90°C for 20 minutes, until ...
Embodiment 2
[0030] Soak the natural colored raw silk in water at 60°C for 20 minutes to swell the sericin on the surface of the natural colored raw silk, then steam the natural colored raw silk, treat it at 100°C for 30 minutes, and clean it with deionized water.
[0031] Immerse the above-mentioned natural colored raw silk in glutaraldehyde-citric acid solution, wherein the glutaraldehyde content is 3%, adjust the pH value to 5 with citric acid, and treat at 40°C for 0.5h, so that the sericin on the surface of the natural colored raw silk is cured, Rinse well with deionized water.
[0032] Then soak the above-mentioned natural colored raw silk in a solution of 5% grafting agent WG, 5% ammonium persulfate and 40g / L of the grafting agent dosage, the bath ratio is 1:50, adjust the pH with citric acid 5, wash with deionized water;
[0033] Finally, soak the natural colored raw silk in 6g / L sodium carbonate and sodium bicarbonate solution, treat it at 100°C for 10 minutes, until it is comple...
Embodiment 3
[0036] Soak the natural colored raw silk in water at 50°C for 25 minutes to swell the sericin on the surface of the natural colored raw silk, then steam the natural colored raw silk at 90°C for 40 minutes, and clean it with deionized water.
[0037] Immerse the above-mentioned natural colored raw silk in glutaraldehyde-citric acid solution, wherein the glutaraldehyde content is 1%, adjust the pH value to 4 with citric acid, and treat at 35°C for 1 hour, so that the sericin on the surface of the natural colored raw silk is cured. Rinse with deionized water.
[0038] Then soak the above-mentioned natural colored raw silk in the solution of 10% grafting agent WG, 4% ammonium persulfate and 40g / L of the grafting agent dosage, the bath ratio is 1:50, adjust the pH with citric acid For 4, wash it with deionized water;
[0039] Finally, soak the natural colored raw silk in 5g / L sodium carbonate and sodium bicarbonate solution, treat it at 95°C for 15 minutes until it is completely d...
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