Hydrocolloid core dressing and preparation method thereof, hydrocolloid dressing and application thereof

Abstract

The invention belongs to the technical field of medical dressings, and in particular relates to a hydrocolloid dressing core and a preparation method thereof, a hydrocolloid dressing and applications thereof. The hydrocolloid core coating in the present invention is mainly made of the following raw materials in parts by weight: 25-50 parts of hydrophilic colloid, 0.5-10 parts of wetting-promoting absorbent, 1-20 parts of thermoplastic rubber, and 8-30 parts of plasticizer 4-30 parts of tackifying resin, 1.5-13 parts of reinforcing agent and 0.008-4 parts of antioxidant. The hydrocolloid dressing prepared by the hydrocolloid dressing core has good integrity, up to 90%, and a large liquid absorption capacity of 0.2-0.3g / cm 2 , fast liquid absorption rate, the liquid absorption rate is 3-4.5h, and the liquid absorption rate is adjustable, it is not easy to produce wrinkles, breaks, no white spots, good stickiness, and no pain when peeling off.

Description

technical field [0001] The invention relates to the technical field of medical dressings, in particular to a hydrocolloid dressing core and a preparation method thereof, a hydrocolloid dressing and applications thereof. Background technique [0002] Human skin will cause trauma due to various external factors, thereby losing its natural protective function and causing other complications. Traditional gauze dressings are mainly made of cotton and hemp raw materials through deep processing. Causes secondary mechanical damage during drug use. In addition, traditional dressings are not antibacterial, and the wound surface is susceptible to bacterial infection, producing unpleasant odors and causing wound complications, which is not conducive to wound healing. With the advancement of modern technology, new types of medical dressings continue to emerge, and new clinical efficacy is also constantly improving. [0003] As a new functional dressing, hydrocolloid dressing can not o...

AI Technical Summary

Problems solved by technology

The agglomeration will make some areas of the dressing have strong water absorption capacity, and some areas have poor water absorption, and the adhesion between the poor water absorption area and the skin will decrease, causing the dressing to fall off, and the dispersed phase will be dispersed unevenly, resulting in rubber phase defects. , the area with more dispersed phase has lower strength and elasticity, and the area with less dispersed phase has higher strength and elasticity. When the dressing moves with the skin, the area with more dispersed phase is prone to cracks, causing the dressing to wrinkle or even break

In addition, some other problems in hydrocolloid dressings cannot be ignored, such as poor elasticity and flexibility of the dressing, which is easy to slip off as the skin moves; the bonding time of the dressing is short, the frequency of replacement is too high or the viscosity is too strong, causing patients Detachment pain or detachment injury; at the same time, there are problems such as poor dressing wettability, slow liquid absorption rate, difficult to control water absorption rate, large dressing absorption volume, poor integrity, etc.

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