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Drying method of polyglycollide warp-knitted supporting net for artificial skin

A technology of polyglycolide and artificial skin, which is applied in the direction of drying solid materials, heating to dry solid materials, and non-heating to dry solid materials, etc., which can solve the problems of loss of mechanical properties and achieve the effect of maintaining tensile fracture strength

Active Publication Date: 2021-11-19
HAIXI NEW TEXTILE MATERIAL OF JINJIANG IND TECH ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With high temperature treatment, the moisture and solvent contained in polyglycolide warp knitted support net can be completely removed, but high temperature and oxygen and water vapor in the air can easily lead to rapid degradation of polyglycolide, and its mechanical properties are seriously lost

Method used

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  • Drying method of polyglycollide warp-knitted supporting net for artificial skin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment provides a drying method for a polyglycolide warp-knitted support net for artificial skin, specifically performing pre-drying, deep drying and stress relaxation of the fabric successively.

[0026] The pre-drying process is as follows: place the cleaned and dried polyglycolide warp-knitted support net in a vacuum drying box A, which is connected to a water circulation vacuum pump, and the temperature of the vacuum drying box A is set to 25°C, and the water circulation is turned on at the same time The vacuum pump is continuously running, so that the polyglycolide warp knitted support net is dried under the condition of a vacuum degree of 390Pa for 1 hour, then the water circulation vacuum pump is turned off, and air is slowly introduced to return the vacuum drying box A to normal pressure.

[0027] The steps of the deep drying process are:

[0028] (1) The polyglycolide warp knitted support net is taken out from the vacuum drying oven A, placed in the va...

Embodiment 2

[0036] This embodiment provides a drying method for a polyglycolide warp-knitted support net for artificial skin, specifically performing pre-drying, deep drying and stress relaxation of the fabric successively.

[0037] The pre-drying process is as follows: place the cleaned and dried polyglycolide warp-knitted support net in a vacuum drying box A, which is connected to a water circulation vacuum pump, and the temperature of the vacuum drying box A is set to 30°C, and the water circulation is turned on at the same time The vacuum pump runs continuously to make the polyglycolide warp knitted support net dry for 1.5 hours under the condition of a vacuum of 350Pa, then turn off the water circulation vacuum pump, and slowly introduce air to return the vacuum drying box A to normal pressure.

[0038] The steps of the deep drying process are:

[0039] (1) The polyglycolide warp knitted support net is taken out from the vacuum drying oven A, placed in the vacuum drying oven B, and t...

Embodiment 3

[0047] This embodiment provides a drying method for a polyglycolide warp-knitted support net for artificial skin, specifically performing pre-drying, deep drying and stress relaxation of the fabric successively.

[0048] The pre-drying process is as follows: place the cleaned and dried polyglycolide warp-knitted support net in a vacuum drying box A, which is connected to a water circulation vacuum pump, and the temperature of the vacuum drying box A is set at 28°C, and the water circulation is turned on at the same time The vacuum pump runs continuously to make the polyglycolide warp knitted support net dry for 1.8 hours under the condition of a vacuum of 380Pa, then turn off the water circulation vacuum pump, and slowly introduce air to return the vacuum drying box A to normal pressure.

[0049] The steps of the deep drying process are:

[0050] (1) The polyglycolide warp knitted support net is taken out from the vacuum drying oven A, placed in the vacuum drying oven B, and t...

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Abstract

The invention relates to a drying method of a polyglycollide warp-knitted supporting net for artificial skin. The drying method specifically comprises the steps of carrying out pre-drying, deep drying and fabric stress relaxation in sequence. According to the drying method, water in the polyglycollide warp-knitted supporting net and a residual solvent in the cleaning process can be thoroughly removed, the tensile breaking strength, the aperture, the gram weight and other properties of the polyglycollide warp-knitted supporting net can be effectively kept, and the method has important significance in application of the polyglycollide warp-knitted supporting net to the field of medical artificial skin.

Description

technical field [0001] The invention belongs to the technical field of biomedical new textile materials, and in particular relates to a drying method for a polyglycolide warp-knitted support net for artificial skin. Background technique [0002] The polyglycolide warp-knitted support net is prepared from polyglycolide yarns through winding, warping, weaving, shaping, cleaning and other processes, and has broad application prospects in medical artificial skin and other fields. However, after the polyglycolide warp-knitted support net passes through the cleaning process, the residual moisture (mainly including free water and bound water) and solvent (mainly the solvent used to clean the oil and dust on the polyglycolide warp-knitted support net) Difficult to remove completely. Residual moisture and solvents can accelerate the degradation of polyglycolide warp-knitted support mesh, which has a great impact on its mechanical properties and application on artificial skin. The m...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B1/00F26B3/04F26B5/04F26B7/00
CPCF26B1/00F26B3/04F26B5/045F26B7/00F26B21/14F26B13/00
Inventor 郑小佳郑云波朱晓鑫吴维炜
Owner HAIXI NEW TEXTILE MATERIAL OF JINJIANG IND TECH ACAD
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