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Method for preparing breathable self-adhesion elastic bandage

A technology of self-adhesive elastic bandages and mixtures, applied in bandages, medical science, absorbent pads, etc., can solve the problems of reduced bond strength, failure to use normally, airtightness, etc., and achieve the effect of improving the compressive strength

Inactive Publication Date: 2015-08-12
李孟平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, during the use of the self-adhesive elastic bandage, due to a long time or an increase in the surrounding temperature, airtightness will appear, resulting in a decrease in the bonding strength and cannot be used normally.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A preparation method of air-permeable self-adhesive elastic bandage, comprising the following steps:

[0020] (1) In parts by weight, mix 25 parts of acetone and 17 parts of rosin, and ultrasonicate at 60°C for 5 minutes to obtain mixture 1;

[0021] (2) Put mixture 1 obtained in step (1), 34 parts of polyvinyl alcohol, 12 parts of polyurethane, 3 parts of potassium sorbate, 1 part of isopropyl palmitate and 11 parts of fatty alcohol polyoxyethylene ether under a pressure of 0.4 MPa In a mixing mixer, heated to 200°C, stirred at a speed of 1000r / min for 60min, and adjusted the pH to neutral with a 30% sodium hydroxide solution to obtain mixture 2;

[0022] (3) Put the mixture 2 obtained in step (2) in an oven at 50°C for 10 minutes, and then, under the protection of nitrogen, apply it on a non-woven fabric composed of polyester and acrylic fibers with a mass fraction of 3:1 by using a double-roller coating method. The air-permeable self-adhesive elastic bandage is obta...

Embodiment 2

[0024] A preparation method of air-permeable self-adhesive elastic bandage, comprising the following steps:

[0025] (1) In parts by weight, mix 38 parts of acetone and 29 parts of rosin, and sonicate at 90°C for 15 minutes to obtain mixture 1;

[0026] (2) Put mixture 1 obtained in step (1), 46 parts of polyvinyl alcohol, 27 parts of polyurethane, 14 parts of potassium sorbate, 9 parts of isopropyl palmitate and 26 parts of fatty alcohol polyoxyethylene ether under a pressure of 0.9 MPa In a mixer mixer, heated to 240°C, stirred at a speed of 1400r / min for 150min, and adjusted the pH to neutral with a 30% sodium hydroxide solution to obtain mixture 2;

[0027] (3) Place the mixture 2 obtained in step (2) in an oven at 70°C for 30 minutes, and then, under the protection of nitrogen, apply it on a non-woven fabric composed of polyester and acrylic fibers with a mass fraction of 3:1 by using a double-roller coating method. The air-permeable self-adhesive elastic bandage is obta...

Embodiment 3

[0029] A preparation method of air-permeable self-adhesive elastic bandage, comprising the following steps:

[0030] (1) In parts by weight, mix 27 parts of acetone and 20 parts of rosin, and ultrasonicate at 70°C for 8 minutes to obtain mixture 1;

[0031] (2) Put mixture 1 obtained in step (1), 35 parts of polyvinyl alcohol, 16 parts of polyurethane, 6 parts of potassium sorbate, 2 parts of isopropyl palmitate and 14 parts of fatty alcohol polyoxyethylene ether under a pressure of 0.5 MPa In a mixer mixer, heated to 210°C, stirred at a speed of 1100r / min for 80min, and adjusted the pH to neutral with a 30% sodium hydroxide solution to obtain mixture 2;

[0032] (3) Place the mixture 2 obtained in step (2) in an oven at 60°C for 15 minutes, and then, under the protection of nitrogen, apply it on a non-woven fabric composed of polyester and acrylic fibers with a mass fraction of 3:1 by using a double-roller coating method. The air-permeable self-adhesive elastic bandage is ob...

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Abstract

The invention discloses a method for preparing a breathable self-adhesion elastic bandage. The method includes the following steps that acetone and rosin are mixed by weight, ultrasound treatment is conducted for 5-15 minutes at the temperature of 60-90 DEG C, and accordingly a first mixture is obtained; the first mixture, polyving akohol, polyurethane, potassium sorbate, isopropyl palmitate and fatty alcohol-polyoxyethylene ether are placed in a mixing agitator to be stirred, and after the PH value is adjusted to be neutral, a second mixture is obtained; the second mixture is arranged in a drying oven for 10-30 minutes, then the second mixture is smeared on a non-woven fabric base material through a double-roller coating method under the protection of nitrogen, and the elastic bandage is obtained after the processes of coiling, shearing, nitrogen sealing and sealing. The bandage obtained through the method has the advantages of being high in compressive strength, long in protection time, high in water vapor permeability and capable of being widely applied to clinic treatment.

Description

technical field [0001] The invention relates to the field of medical materials, in particular to a preparation method of a breathable self-adhesive elastic bandage. Background technique [0002] Self-adhesive elastic bandage itself has a certain degree of viscosity and elasticity. In the medical field, it is usually used for dressing fixation of special parts, burns and postoperative pressure bandages, and sports protection for vulnerable parts. Because self-adhesive elastic bandages have Self-winding has the advantages of convenient fixing, strong compliance and good elasticity, so it is widely used. [0003] However, during the use of the self-adhesive elastic bandage, due to the long time or the increase of the surrounding temperature, there will be airtight phenomenon, resulting in a decrease in the bonding strength and cannot be used normally. Contents of the invention [0004] In order to overcome the above-mentioned defects, the technical problem solved by the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/00A61L15/26A61L15/20
CPCA61F13/00A61F13/15577A61F13/15723A61F13/15739A61F13/15747A61F2013/00119A61F2013/00157A61F2013/00246A61F2013/00272A61F2013/00314A61F2013/15292A61F2013/15569A61L15/20A61L15/26C08L71/02
Inventor 李孟平李康
Owner 李孟平
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