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Biomedical composite non-woven fabric

A biomedical and non-woven fabric technology, applied in the direction of non-woven fabrics, textiles and papermaking, can solve problems such as not being able to satisfy customers

Inactive Publication Date: 2021-06-25
仙桃市茂盛塑料制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For this reason, the company introduced a polyvinyl alcohol nanofiber, a preparation method and a device patented by Soochow University, which solved the existing technical problems to a certain extent, but still could not meet the needs of customers, so it needs to be improved

Method used

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1: biomedical composite non-woven fabric, is characterized in that comprising the following steps:

[0015] A. Spray the SMS non-woven fabric in acetone, then spray and rinse it with deionized water, and send it to the dryer to remove the pollutants on the surface of the non-woven fabric for later use;

[0016] B. Dissolve polyvinyl alcohol in distilled water, add 5wt% water-soluble hydroxyl-terminated hyperbranched polyester by mass, heat to 90°C at a rate of 0.9°C / min at room temperature, and fully After dissolving, slowly cool to room temperature to obtain a mixed solution;

[0017] C. Freeze the mixed solution at -20°C for 8 to 24 hours, and then thaw at room temperature;

[0018] D. Heating the thawed mixed solution to control its viscosity at 180-550 mpa.s to obtain spinning stock solution;

[0019] E. Using the electrospinning process, a polyvinyl alcohol nanofiber nonwoven fabric with a strength of 1045-1800N / ㎡ is obtained on the receiving screen. ...

Embodiment 2

[0023] A. Spray the SMS non-woven fabric in acetone, then spray and rinse it with deionized water, and send it to the dryer to remove the pollutants on the surface of the non-woven fabric for later use;

[0024] B. Dissolve polyvinyl alcohol in distilled water, add 35wt% water-soluble hydroxyl-terminated hyperbranched polyester by mass, heat to 90°C at a rate of 0.6°C / min at room temperature, and fully After dissolving, slowly cool to room temperature to obtain a mixed solution;

[0025] C. Freeze the mixed solution at -50°C for 8 hours, then thaw at room temperature;

[0026] D. Heating the thawed mixed solution to control its viscosity at 180-550 mpa.s to obtain spinning stock solution;

[0027] E. Using the electrospinning process, a polyvinyl alcohol nanofiber nonwoven fabric with a strength of 1045-1800N / ㎡ is obtained on the receiving screen.

[0028] F. Coating the non-woven composite agent on the SMS non-woven fabric, sending the polyvinyl alcohol nanofiber non-woven ...

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Abstract

The invention provides a biomedical composite non-woven fabric. The biomedical composite non-woven fabric is characterized by being prepared by the following steps that an SMS non-woven fabric is sprayed in acetone, then the SMS non-woven fabric is sprayed and washed with deionized water, and the SMS non-woven fabric is fed into a dryer to remove pollutants on the surface of the non-woven fabric for later use; polyvinyl alcohol is dissolved in distilled water, 1 wt%-5wt% of water-soluble hydroxyl-terminated hyperbranched polyester is added by mass, heating is carried out to 70-100 DEG C at room temperature at a heating speed of 0.2-1 DEG C / min, full dissolving is carried out under a stirring condition, and slow cooling is carried out to the room temperature to obtain a mixed solution; and the mixed solution is frozen at the temperature of -20 to -70 DEG C for 8-24 hours, and then unfreezing is carried out in a room temperature environment. The biomedical composite non-woven fabric has the effects of biological affinity, ultraviolet resistance, aging resistance and the like, and is particularly suitable for production of medical non-woven fabric products related to human bodies.

Description

technical field [0001] The invention relates to a non-woven fabric material, in particular to a biomedical composite non-woven fabric. Background technique [0002] Finishing of non-woven fabrics is to add various liquid medicines (auxiliaries) to ordinary non-woven fabrics (non-woven fabrics) and then dry them to make them hydrophilic, anti-static, anti-bacterial, anti-alcohol, anti-blood, anti- Gasoline, anti-microbial, anti-ultraviolet, anti-mildew, anti-virus, water-repellent, oil-repellent, flame-retardant, insect-proof, anti-odor and fragrance and other functions. Ordinary non-woven fabrics (non-woven fabrics) have no function and need finishing. [0003] For this reason, the company introduced a polyvinyl alcohol nanofiber, a preparation method and a device patented by Soochow University, which solved the existing technical problems to a certain extent, but still could not meet the needs of customers, so it needs to be improved. Contents of the invention [0004] ...

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): D04H1/728D04H1/4309D04H1/593
CPCD04H1/4309D04H1/593D04H1/728
Inventor 陈利红肖青吕炳华
Owner 仙桃市茂盛塑料制品有限公司