Silk broadcloth surface biological branch-meeting water-repellent finishing method

A water-repellent finishing, biological technology, applied in the direction of biochemical fiber treatment, fiber treatment, animal fiber, etc., can solve the problem of no real silk, and achieve the effect of good hygroscopicity and air permeability

Inactive Publication Date: 2008-02-27
SOUTHWEST UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there is no research report on the biografting water-repellent finishing method on the surface of silk

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Cyclohexane was dried with water-absorbing molecular sieves for 24 hours, 0.8 g of stearyl alcohol was dissolved in 100 ml of dried cyclohexane, 0.43 ml of phosphate buffer solution of pH 8 was accurately injected with a syringe, 0.1 g of lipase was added, mixed evenly, and then Put 5g of silkworm silk, keep it warm at 45°C for 48h, take it out, wash and dry. Water repellency grade 3~4.

Embodiment 2

[0015] Dissolve 0.71g of cetyl alcohol in 100ml of dried cyclohexane, accurately inject 0.44ml of pH8 phosphate buffer solution with a syringe, add 0.11g of lipase, mix well, then add 5g of silkworm silk, and keep warm at 45°C 48h, take out, wash and dry. Water repellency grade 3~4.

Embodiment 3

[0017] Dissolve 0.63g of tetradecyl alcohol in 100ml of dried cyclohexane, accurately inject 0.45ml of pH8 phosphate buffer solution with a syringe, add 0.12g of lipase, mix well, then add 5g of silkworm silk, and keep warm at 45°C 48h, take out, wash and dry. Water repellency level 3.

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PUM

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Abstract

The present invention relates to a real silk surface biological grafting hydrophobic finishing method. It is characterized by that said invention utilizes that under the action of lipase the carboxyl of silk protein on the real silk surface and high-grade fatty alcohol can produce esterification reaction to make hydrophobic hydrocarbon chain be grafted on the real silk so as to obtain permanent hydrophobic finished effect. The surface of said real silk fabric has hydrophobic property, and its interior still has good moisture sorption characteristics and air permeability.

Description

technical field [0001] The invention relates to the technical fields of chemical industry and light spinning, in particular to a method for biological grafting and water-repellent finishing on the surface of real silk. Background technique [0002] Pyridine complexes and organosilicon compounds are generally used for fabric water-repellent finishing, which use the low surface tension of alkanes to achieve water-repellent purposes. It is widely used in cotton and polyester-cotton blends, but it is basically not used in silk water-repellent finishing. [0003] Pyridine small molecule water-repellent finishing agents can chemically bond with fabrics, and the finishing is durable. But it will penetrate into the interior of the fabric, not only produce finishing effect on the surface of the fabric. Silicone-based water-repellent finishing agents do not covalently bond with fabrics, so the finishing is only durable to semi-durable. [0004] The hydrophilicity of silk is very go...

Claims

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Application Information

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IPC IPC(8): D06M16/00C12S11/00D06M13/144D06M101/12
Inventor 张光先鲁成向仲怀
Owner SOUTHWEST UNIVERSITY
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