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Hydrocolloid dressing and its preparation method

A hydrocolloid, water-soluble technology, applied in medical science, absorbent pads, bandages, etc., can solve the problems of skin barrier loss of integrity, fluid leakage, etc., achieve high integrity, good adhesion performance, and reduce fluid leakage Effect

Active Publication Date: 2012-06-13
HUBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Loss of integrity of the skin barrier, causing fluid leakage, frequent dressing changes, and residual material that is often left on the skin

Method used

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  • Hydrocolloid dressing and its preparation method
  • Hydrocolloid dressing and its preparation method
  • Hydrocolloid dressing and its preparation method

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with specific examples, and hydrocolloid dressings with the ingredients listed in Table 1 below are prepared according to the present invention.

[0020] Table 1

[0021] Element

weight percent

[0022] SIS 1105

18

C5 S-100

24

naphthenic oil

15

Sodium carboxymethyl cellulose

22

Croscarmellose Sodium

20

Antioxidant 1010

1

[0023] Add 36 Kg SIS (styrene-isoprene-styrene block copolymer) to the internal mixer at 150° C. and soften for 10 minutes. Then 2Kg antioxidant 1010 (tetra[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester), 48 Kg C5 petroleum resin, 30 Kg naphthenic oil were added and heated at 130° C. Continue mixing until the mixture is homogenized. 58 Kg of material was removed from the mixer, and to the remaining material, 22 Kg of sodium carboxym...

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Abstract

The invention discloses a hydrocolloid dressing suitable for medical application and its preparation method. The hydrocolloid dressing comprises 5-40% of one or more styrene copolymers, 10-50% of tackifying resin, 20-60% of one or more hydrocolloids, 5-30% of tackifier and 0-5% of anti-oxidant. The method comprises the following steps: 1) softening in a mixer for 5-10 minutes under the temperature of 130-160 DEG C; 2) placing tackifying resin, a tackifier and an anti-oxidant in a softened styrene-isoprene-styrene segmented copolymer for mixing to obtain a premix; 3) adding hydrocolloid particles in the premix; 4) coating. The hydrocolloid dressing possesses good viscosity, and the high integrity can be kept after a great amount of biological fluid is sucked. The hydrocolloid dressing shows good performance on skin when being taken as a dressing.

Description

technical field [0001] The invention relates to a hydrocolloid dressing and a preparation method thereof. Background technique [0002] Hydrocolloid dressings are both viscous and water-absorbent. They can still maintain a certain degree of viscousness while absorbing body fluids. They can be placed directly on the wound surface without irritation or allergy to the wound and surrounding skin. Therefore, they are widely used in the medical field. It can be used as medical adhesive tape, bandage, and surgical film, and is also suitable for patients with intestinal and urethral stomas. It also has good effects on burns, scalds, bedsores, and ulcers. [0003] A major problem encountered with common hydrocolloid dressings is their tendency to break down when exposed to corrosive fluids. When these compositions act as a skin barrier, they absorb fluid around the opening. After absorbing fluid, the hydrocolloid dispersed in the rubber swells, and the swelling loses the integrity ...

Claims

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Application Information

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IPC IPC(8): A61L15/32A61L15/28A61L15/24
Inventor 蒋涛胡迎兰蔡芳昌刘鎏李扬聂正稳罗海强
Owner HUBEI UNIV
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