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Method for producing self-adhesive elastic bandage

A self-adhesive elastic bandage, a technology for making method, applied in bandages, chemical instruments and methods, adhesives, etc., can solve the problems of low production efficiency, insufficiently uniform adhesive layer, low solid content of adhesives, etc. Uniform, moderately viscous effect

Active Publication Date: 2007-03-07
WINNER MEDICAL (HUANGGANG) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low solid content of the adhesive used in the spraying method, atomization occurs during the spraying process, the glue is wasted more, the usage rate is low, and it is easy to pollute the environment; the disadvantage of the scraping method is that the applied adhesive layer is not uniform enough, and the product performance Unstable; the dip coating method is mainly to immerse the base material in the adhesive and then extrude. The manufactured product has poor air permeability, and it is easy to cause whitening and blistering of the skin due to airtightness during use; the roll coating process can only be applied on one side. , lower production efficiency
[0003] The above method also has the disadvantages of low solid content of the adhesive, more heat required for drying, and high energy consumption.

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

[0024] Get 100 kilograms of natural rubber latex that contains 65% natural rubber, 1.5 kilograms of polyacrylate latexes, be mixed with adhesive. Select a roll of elastic non-woven fabric with an elastic ratio of 1: 2.5, and fix it on the rear feeding frame. Unwind the non-woven fabric through the automatic edge-aligning device, pass it between the two sets of round rollers from bottom to top, and cause the transmission needle plate to be fixed. Adjust the gap between the two upper rubber rollers, adjust the system pressure of the two upper rubber rollers, and squeeze the non-woven fabric between the two upper rubber rollers. Pump the adhesive into the glue-holding areas on the two groups of round rollers respectively, start the double-sided glue coating machine, and control the coating speed to 10-15 m / min. With the transmission of the equipment, a certain thickness of glue is formed on the surface of the rubber rollers. Adhesive film, the adhesive is evenly coated on both s...

Embodiment 2

[0026] Get 100 kilograms of natural rubber emulsion that contains 60% natural rubber, 2 kilograms of polyurethane emulsions, be mixed with adhesive. Select a roll of elastic cotton cloth with an elastic ratio of 1: 2.3, and fix it on the rear feeding frame. Unwind the elastic cotton cloth through the automatic side-aligning device, pass it between the two sets of round rollers from bottom to top, and cause the transmission needle plate to be fixed. Adjust the gap between the two upper rubber rollers, adjust the system pressure of the two upper rubber rollers, and squeeze the elastic cotton cloth between the two upper rubber rollers. Pump the adhesive into the glue-holding areas on the two groups of round rollers respectively, start the double-sided glue coating machine, and control the coating speed to 20-25 m / min. With the transmission of the equipment, a certain thickness of glue is formed on the surface of the rubber rollers. Adhesive film, through the extrusion of two upp...

Embodiment 3

[0028] Get 100 kilograms of natural rubber latex that contains 50% natural rubber, 3 kilograms of polyacrylate latexes, be mixed with adhesive. A roll of elastic gauze with an elastic ratio of 1: 2.8 is selected and fixed on the rear feeding frame. Unwind the elastic gauze through the automatic side-aligning device, and pass it between the two sets of round rollers from bottom to top, and cause the transmission needle plate to be fixed. Adjust the gap between the two upper rubber rollers, adjust the system pressure of the two upper rubber rollers, and squeeze the elastic gauze between the two upper rubber rollers. Pump the adhesive into the glue-holding areas on the two groups of round rollers respectively, start the double-sided glue coating machine, and control the coating speed to 30-35 m / min. With the transmission of the equipment, a certain thickness of glue is formed on the surface of the rubber rollers. Adhesive film, the adhesive is evenly coated on both surfaces of t...

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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Abstract

The invention relates to a method for producing adhesive flexible bond. Wherein, it uses flexible fabric, uses dual-layer adhesive machine. And the method comprises preparing adhesive, preparing flexible fabric, plating adhesive on the fabric, drying and producing final product. The invention coats adhesive on two surfaces of flexible fabric synchronously, with high efficiency. And it has uniform adhesive and better penetration.

Description

technical field [0001] The invention relates to a method for making a medical bandage, in particular to a method for making a self-adhesive elastic bandage. Background technique [0002] At present, the gluing process of medical bandage products mainly includes several methods such as spraying, scraping, rolling and dipping. Due to the low solid content of the adhesive used in the spraying method, atomization occurs during the spraying process, the glue is wasted more, the usage rate is low, and it is easy to pollute the environment; the disadvantage of the scraping method is that the applied adhesive layer is not uniform enough, and the product performance Unstable; the dip coating method is mainly to immerse the base material in the adhesive and then extrude. The manufactured product has poor air permeability, and it is easy to cause whitening and blistering of the skin due to airtightness during use; generally, the roll coating process can only be applied on one side. , ...

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): A61F13/00C09J107/02B32B37/12
Inventor 刘燕孙德乾
Owner WINNER MEDICAL (HUANGGANG) CO LTD
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