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Sponge and elastic non-woven fabric composite self-adhering fascia and production method thereof

A production method and technology of non-woven fabrics, applied in bandages, medical science, absorbent pads, etc., can solve the problems of increasing user pain, affecting wound recovery, increasing wound infection, etc., and achieve superior softness, good recovery, and hand feeling non-stick effect

Inactive Publication Date: 2008-07-16
SUZHOU MEDSPORT PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Medical bandages are used to protect wounds and keep them clean. Traditional bandage base materials use polyethylene or polyvinyl chloride as backing materials. Because these materials do not have air permeability, the moisture on the patient's skin surface cannot evaporate in time, which affects wound recovery. , can cause wound infection in severe cases
In addition, the bandaging of general adhesive bandages often leaves a little glue on the skin surface after it is untied, and when it is removed, the skin and hair will be stuck together, which increases the pain of the user.
[0003] In addition, the bandage based on cotton non-woven fabric has good air permeability, but it is not waterproof. External water can easily pass through the bandage to reach the wound, and bacteria have the opportunity to contact the skin wound, which increases the chance of wound infection.

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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  • Sponge and elastic non-woven fabric composite self-adhering fascia and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] First, the preparation of self-adhesive adhesive: take 100 parts of natural latex, 10 parts of white oil, 1 part of butyl acrylate, 0.1 part of potassium sorbate, 30.5 parts of fatty alcohol polyoxyethylene ether; white oil and fatty alcohol polyoxyethylene ether -3 Heat to 55°C to prepare emulsified oil; dissolve potassium sorbate in appropriate amount of water, then pour emulsified oil into emulsified liquid, and let it stand for 3 hours; heat natural latex to 45°C, add emulsified liquid, Stir for 20 minutes; cool the formed mixture to 35°C, add an appropriate amount of water and butyl acrylate, and stir for 10 minutes; filter the formed mixture to remove impurities and leave it for 10 hours to obtain a self-adhesive adhesive, which is set aside.

[0040] Take polyurethane sponge, elastic non-woven fabric and rubber-based adhesive, the density of polyurethane sponge is 30kg / m 3 , the thickness is 4.5mm; the thickness of the elastic non-woven fabric is 0.4mm. Use a sp...

Embodiment 2

[0042] First, the preparation of self-adhesive adhesive: take 100 parts of natural latex, 30 parts of white oil, 5 parts of butyl acrylate, 0.5 parts of potassium sorbate, 32.5 parts of fatty alcohol polyoxyethylene ether; white oil and fatty alcohol polyoxyethylene ether -3 Heat to 60°C to prepare emulsified oil; dissolve potassium sorbate in appropriate amount of water, then pour emulsified oil into emulsified liquid, and let it stand for 5 hours; heat natural latex to 50°C, add emulsified liquid, Stir for 30 minutes; cool the formed mixture to 25°C, add an appropriate amount of water and butyl acrylate, and stir for 35 minutes; filter the formed mixture to remove impurities and leave it for 20 hours to obtain a self-adhesive adhesive for use.

[0043]Take polyurethane sponge, elastic non-woven fabric and acrylic adhesive, the density of polyurethane sponge is 40kg / m 3 , the thickness is 3mm; the thickness of the elastic non-woven fabric is 0.3mm. The polyurethane sponge is...

Embodiment 3

[0045] First, the preparation of self-adhesive adhesive: take 100 parts of natural latex, 50 parts of white oil, 10 parts of butyl acrylate, 1 part of potassium sorbate, 35 parts of fatty alcohol polyoxyethylene ether; white oil and fatty alcohol polyoxyethylene ether -3 Heat to 65°C to prepare emulsified oil; dissolve potassium sorbate in appropriate amount of water, then pour emulsified oil into emulsified liquid, and let it stand for 6 hours; heat natural latex to 55°C, add emulsified liquid, Stir for 50 minutes; cool the formed mixture to 10°C, add an appropriate amount of water and butyl acrylate, and stir for more than 60 minutes; filter the formed mixture to remove impurities and leave it for 30 hours to obtain a self-adhesive adhesive, which is set aside.

[0046] Get polyurethane sponge, elastic non-woven fabric and polysiloxane-based adhesive, the density of polyurethane sponge is 50kg / m 3 , the thickness is 0.7mm; the thickness of the elastic non-woven fabric is 0.2...

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Abstract

The invention provides a sponge and elastic nonwoven compounded self-adhesive bandage and a preparation method thereof. Polyurethane sponge and elastic nonwoven are compounded to form the self-adhesive bandage by a composite adhesive and the surface of the elastic nonwoven is coated with a self adhesive. The preparation method is that: the polyurethane sponge, the elastic nonwoven and the composite adhesive are obtained; the surface of the polyurethane sponge is sprayed with the composite adhesive in the forms of fine particles by a spray gun; the elastic nonwoven is compounded onto the polyurethane sponge; and then the surface of the elastic nonwoven is sprayed with the self adhesive; finally the compound is put into an oven to be dried, roll cut and the sponge and elastic nonwoven compositing self-adhesive bandage is obtained. The sponge and elastic nonwoven compositing self-adhesive bandage of the invention has distinctive features of softness, natural air permeability, water repellency, comfort, etc., and no stimulation to skin; the bandage has autoadhesion and can be conveniently separated; furthermore, the bandage can not only be used separately but also in combination with common bandages.

Description

technical field [0001] The invention relates to a bandage used in medical and other industries, in particular to an elastic bandage in which polyurethane sponge and elastic non-woven fabric are combined as a base material and a manufacturing method thereof. Background technique [0002] Medical bandages are used to protect wounds and keep them clean. Traditional bandage base materials use polyethylene or polyvinyl chloride as backing materials. Because these materials do not have air permeability, the moisture on the patient's skin surface cannot evaporate in time, which affects wound recovery. , can cause wound infection in severe cases. In addition, the bandaging of general adhesive bandages often leaves a little glue on the skin surface after it is untied, and when it is removed, the skin and hair will be stuck together, which increases the pain of the user. [0003] In addition, the bandage based on cotton non-woven fabric has good air permeability, but it is not waterp...

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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IPC IPC(8): A61L15/58A61L15/26
Inventor 钟明南徐天骥
Owner SUZHOU MEDSPORT PROD
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