Degumming method applicable to green fluorescent protein-containing bave

A technology of green fluorescent protein and degumming method, applied in degumming and other directions, can solve the problems affecting the silk feel, color printing and dyeing processing, use restrictions, poor hand feel of cocoon silk, etc., and achieve the effect of small loss of mechanical properties, good mercerization, and soft hand feeling

Active Publication Date: 2015-03-04
SOUTHWEST UNIVERSITY
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the birth of new colored cocoons also brings new problems: the existence of sericin will affect the feel, color and luster of silk, as well as the subsequent printing and dyeing processing, so silk must be refined
The production method of softening raw silk glue fixation article adopts low-temperature glue-fixing technology to fix sericin in silk. This kind of glue-fixing process is gentle and can keep the color of green cocoon silk, but the cocoon silk treated in this way has a poor hand feel. Its use is also restricted

Method used

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  • Degumming method applicable to green fluorescent protein-containing bave
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  • Degumming method applicable to green fluorescent protein-containing bave

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1, green cocoon silk fluorescence observation and gel content determination

[0028] Take 6g of green cocoon silk, put it in a constant temperature oven, and dry it at 105-110°C until it reaches a constant weight, which is the dry weight before the test W 0 , and then the samples were processed under the following conditions:

[0029]

[0030] After the sample is treated under the above conditions, it is fully washed with soft water, and then dried at 105-110 ° C to constant weight, which is the dry weight after the test W 1 , and then calculate the gel content according to the following formula, accurate to 0.01%.

[0031] Glue content = (W 0 -W 1 ) / W 0 ×100%

[0032] Repeat three parallel experiments, and take the average value of three times as the final result of the gel content. The calculated gel content is 26.86%. The glue content is used as the criterion for judging the effect of degumming. The closer the degumming rate is to the glue conten...

Embodiment 2

[0033] Embodiment 2, the method of soap alkali method degumming green cocoon silk

[0034] Take the green cocoon silk sample and dry it in an oven at 105-110°C to constant weight, and record the dry weight of the green cocoon silk as m 0 , soaked for 0.5 hours in a soap solution with a bath ratio of 1:50, wherein the concentration of the soap solution is 3 to 7 g·L -1 Industrial soap and concentration of 1 ~ 5g L -1 Soda ash, then degummed at a temperature of 60-95°C for 20-60 minutes (degumming according to the conditions in Table 1), then washed in water at a temperature of 80°C, 50°C and 18-25°C for 5 minutes, and finally placed Dry in an oven at 105-110°C until constant weight, record the dry weight of degummed cocoons, and denote it as m 1 . According to degumming rate=(m 0 -m 1 ) / m 0 ×100% to calculate the degumming rate, the results are shown in Table 1.

[0035] Table 1. Orthogonal method and results of degumming green cocoon silk by soap alkali method

[0036]...

Embodiment 3

[0038] Embodiment 3, the method for papain degumming green cocoon silk

[0039] Take 9 samples of 2g green cocoon silk, dry them in an oven at 105-110°C to constant weight, and record the dry weight before degumming in m 0 , soaked at 50°C for 0.5h in a pretreatment solution with a bath ratio of 1:50, wherein the pretreatment solution is a solution of pH=10, containing 1g / L soda ash and 0.5g / L penetrant JFC, and then The concentration of papain is 0.5~1g·L -1 , the pH is 5-9, and the temperature is 40-80 ° C under the condition of degumming for 30-60 minutes (degumming according to the conditions in Table 2), followed by washing in water at a temperature of 80 ° C, 50 ° C and 18-25 ° C for 5 minutes, Finally, place it in an oven at 105-110°C and dry it to constant weight, record the dry weight m after degumming 1 . According to degumming rate=(m 0 -m 1 ) / m 0 ×100% to calculate the degumming rate, the results are shown in Table 2.

[0040] Table 2. Orthogonal method and ...

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Abstract

The invention discloses a degumming method applicable to green fluorescent protein-containing bave. The degumming method comprises the following steps: drying the bave to be constant-weight, soaking the bave in a pretreating solution in a bath ratio of 1: 50, degumming for 30-120 minutes under the conditions that the concentration of alkaline protease is 0.5-3g/L and the temperature is 40-60 DEG C, washing by water, and drying to obtain the degummed bave, wherein the pretreating solution is a solution with pH of 10 and containing 1g/L sodium carbonate and 0.5g/L penetrant JFC. The degumming method is suitable for degumming the green fluorescent protein-containing bave; by the degumming method, the degumming rate is high and the fluorescent characteristic of the bave can be retained to the maximum extent; after the bave is degummed through the degumming method, the bave has relatively small mechanical performance loss, soft hand feel and good mercerization; through the degumming method, a requirement on degumming of transgenic green bave can be met.

Description

technical field [0001] The invention belongs to the chemical field, and in particular relates to a degumming method suitable for cocoon silk containing green fluorescent protein. Background technique [0002] The textile printing and dyeing industry has always been considered a major source of pollution, among which the dyes and chemicals in the dyeing and finishing industry are important "contributors". In addition to affecting the health of operators, these dyes and chemicals will also bring long-term harm to consumers, and even some dyes are carcinogenic. In recent years, acid dyes and reactive dyes are mainly used for silk dyeing. As far as the dyeing effect is concerned, the acid dyes are bright in color, but the color fastness is poor; although the color fastness of the reactive dyes is good, the utilization rate of the dye is not high, the reproducibility of the dyeing is poor, and it is difficult to change the color; When it is too high, it is easy to damage, so th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01C3/02
CPCD01C3/02
Inventor 席星航杨佩王峰赵萍夏庆友
Owner SOUTHWEST UNIVERSITY
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