Cocoon cooking method capable of increasing cohesion times of fresh cocoon raw silk
A fresh cocoon and raw silk technology, which is applied in cocoon cleaning/classification, silk fiber production, textiles and papermaking, etc. It can solve the problems of low viscosity of sericin, shedding of sericin powder, and failure of fresh cocoon silk to achieve raw silk The effect of product quality improvement, enhanced mechanical properties, and the number of times of strip height cohesion
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Embodiment 1
[0016] A cocoon cooking method for increasing the coagulation times of fresh cocoons and raw silk, comprising the following contents:
[0017] (1) Sorting the fresh cocoons according to the conventional method, soaking the selected fresh cocoons in rice washing water at a temperature of 36°C for 4-5 hours, then washing them with deionized water, and drying them in an oven at 62°C drying until the water content is lower than 10%; the preparation method of the rice washing water is to rinse the rice with running water for 25 seconds, and then soak the rice and water for 30 minutes according to the weight ratio of 1:5;
[0018] (2) Irradiate the dried cocoons with γ-rays at a dose of 18 kGy for 5 minutes in a negative pressure atmosphere with a negative pressure value of 50 kPa;
[0019] (3) Put the treated silkworm cocoons into the cocoon cooking machine, and dip them in the dipping stage I with a temperature of 38°C and the dipping stage II with a temperature of 48°C in sequenc...
Embodiment 2
[0024] A cocoon cooking method for increasing the coagulation times of fresh cocoons and raw silk, comprising the following contents:
[0025] (1) Sorting fresh cocoons according to conventional methods, soaking the selected fresh cocoons in rice washing water at a temperature of 34°C for 5 hours, then rinsing with deionized water, and drying in an oven at 60°C until the water content is lower than 10%; the preparation method of the rice washing water is to wash the rice with running water for 20 seconds, and then soak the rice and water for 30 minutes according to the weight ratio of 1:5;
[0026] (2) Irradiate the dried silkworm cocoons with gamma rays with a dose of 20kGy for 4 minutes in a negative pressure atmosphere with a negative pressure value of 60kPa;
[0027] (3) Put the treated silkworm cocoons into the cocoon cooking machine, and then dip them in the dipping stage I with a temperature of 32°C and the dipping stage II with a temperature of 45°C;
[0028] Wherein ...
Embodiment 3
[0032] A cocoon cooking method for increasing the coagulation times of fresh cocoons and raw silk, comprising the following contents:
[0033] (1) Sorting fresh cocoons according to conventional methods, soaking the selected fresh cocoons in rice washing water at a temperature of 38°C for 4 hours, then rinsing with deionized water, and drying in an oven at 65°C until the water content is lower than 10%; the preparation method of the rice washing water is to rinse the rice with running water for 25 seconds, and then soak the rice and water for 30 minutes according to the weight ratio of 1:5;
[0034] (2) Irradiate the dried cocoons with γ-rays at a dose of 15-20 kGy for 6 minutes in a negative pressure atmosphere with a negative pressure value of 40 kPa;
[0035] (3) Put the treated silkworm cocoons into the cocoon cooking machine, and dip them in the dipping stage I with a temperature of 42°C and the dipping stage II with a temperature of 50°C;
[0036] Wherein the impregnati...
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