Process for biologically dyeing wool fabric by virtue of laccase
A technology for biological dyeing and wool is applied in the field of biological dyeing of wool fabrics by laccase, which can solve the problems of low utilization rate of vegetable dyes and unsatisfactory fastness of wool fabrics.
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[0015] Example 1
[0016] The specific steps of the biological dyeing process of laccase on the wool worsted fabric are:
[0017] 1. Pretreatment of wool fabric: Put the wool fabric in hot water at 90-95℃ for 10 minutes.
[0018] 2. The configuration of the laccase solution: Weigh 50% (omf) laccase and dissolve it in a pH 4 acetic acid-sodium acetate buffer solution system.
[0019] 3. Dyeing process: Put the squeezed wool fabric into a flask containing laccase solution, and place the flask in a constant temperature shaking water bath at 50°C for 24 hours.
[0020] 4. Inactivation process: Take out the dyed wool fabric and treat it in boiling water for 10 minutes to inactivate the enzyme.
[0021] 5. Washing process: Wash the deactivated wool fabric in hot water at 50-60℃, then wash it in cold water, and dry it.
[0022] The color of wool fabric treated with laccase is yellow, and the washing and rubbing fastness can reach 4-5.
Example Embodiment
[0023] Example 2
[0024] The specific steps of the biological dyeing process of laccase on the wool worsted fabric are:
[0025] 1. Pretreatment of wool fabric: Put the wool fabric in hot water at 90-95℃ for 10 minutes.
[0026] 2. The configuration of the laccase solution: Weigh 50% (omf) laccase and dissolve it in a pH 4 acetic acid-sodium acetate buffer solution system.
[0027] 3. Dyeing process: Put the squeezed wool fabric into a flask containing laccase solution, and place the flask in a constant temperature shaking water bath at 30°C for 24 hours.
[0028] 4. Inactivation process: Take out the dyed wool fabric and treat it in boiling water for 10 minutes to inactivate the enzyme.
[0029] 5. Washing process: Wash the deactivated wool fabric in hot water at 50-60℃, then wash it in cold water, and dry it.
[0030] The color of wool fabric treated with laccase is yellowish reddish, and the washing and rubbing fastness can reach 4-5.
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