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Preparation technique of water-based latex-free self-adhesive elastic bandage

A self-adhesive elastic bandage and a technology for the preparation process, which are applied in bandages, medical science, absorbent pads, etc., can solve the problems of skin allergic reaction, environmental pollution, complicated production process control, etc., and achieve the effect of low production cost and good viscosity

Inactive Publication Date: 2012-03-21
ZHENDE MEDICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because natural latex contains a small amount of soluble protein, and these soluble proteins can cause human skin allergic reaction, this has just limited the use of natural latex self-adhesive elastic bandage; There are solvents in the process, the production process control is complicated, and it will cause environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0017] Embodiment: a kind of preparation technology of water-based latex-free self-adhesive elastic bandage, a, the pulverization of solid adhesive: select solid synthetic rubber, adopt ultra-low temperature freezing pulverizer to pulverize solid synthetic rubber at -80 ℃~-60 ℃, pulverize The particle size is 8000-10000 mesh;

[0018] b. Coarse emulsification: Take 100 parts of the glue dissolved in step b and pour it into the reactor. The amount of emulsifier is 1.5 to 3 parts. Use 200 to 600 parts of water to dissolve the emulsifier completely and add it dropwise to the reactor. In the glue, the dropping time is 3h~6h, the emulsification temperature is 40℃~70℃, the stirring speed is 2000r / min~3000r / min, after the dropping is completed, continue to stir for 2h~4h, then cool to room temperature and take out the emulsion;

[0019] c. Fine emulsification: Put the coarsely emulsified emulsion in step b into a high-speed dispersing emulsifier, adjust the speed to 15000r / min-25000r...

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Abstract

The invention relates to a preparation technique of a water-based latex-free self-adhesive elastic bandage, which comprises the following steps: a. pulverization of solid adhesive; b. crude emulsification; c. fine emulsification: putting the emulsion subjected to crude emulsification in the step b in a high-speed dispersion emulsifying machine, adjusting the speed to 15000-25000 r / min, and carrying out high-speed stirring and emulsification for 10-30 minutes to obtain the prepared water-based emulsion adhesive; and d. adhesive coating: evenly coating the prepared water-based emulsion adhesive on both sides of the elastic bandage in a spray coating or blade coating mode, baking and rolling to obtain the finished product. The emulsified adhesive can be coated more easily and flatly, and distributed evenly; and the production cost is lower than that of the adhesive prepared by a foaming method. No solvent is added in the preparation process, so the water-based latex-free self-adhesive elastic bandage has the advantages of environmental protection and no pollution.

Description

Technical field: [0001] The invention relates to the technical field of bandage production, in particular to a preparation process for a water-based latex-free self-adhesive elastic bandage. Background technique: [0002] Self-adhesive elastic bandage is easy to use and does not need other objects to fix it. It will only stick to itself and not stick to skin, hair, etc. It has a wider range of applications and is the first choice for medical care, fashion sports, pet grooming, etc. Self-adhesive elastic bandages can be divided into two categories, one is natural latex self-adhesive elastic bandages prepared from natural latex as an adhesive, and the other is synthetic adhesive self-adhesive elastic bandages prepared from synthetic glue. Because natural latex contains a small amount of soluble protein, and these soluble proteins can cause human skin allergic reaction, this has just limited the use of natural latex self-adhesive elastic bandage; There are solvents in the proc...

Claims

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Application Information

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IPC IPC(8): A61L15/30A61F13/00
Inventor 张新强胡修元沈博强
Owner ZHENDE MEDICAL CO LTD
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