Medical composite dressing and preparation method thereof
A technology of mixed solution and carrier material, which is applied in the field of medical composite dressing and its preparation, can solve the problems of poor mechanical properties, inability to meet the complex needs of the wound healing process, poor absorption performance, etc., and achieve convenient operation, remarkable effect of promoting wound healing, keep moist effect
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Embodiment 1
[0022] (1) Preparation of carboxymethyl chitosan solution: Weigh 75g carboxymethyl chitosan, add 425g purified water, stir until dissolved, and prepare 15% carboxymethyl chitosan solution.
[0023] (2) Preparation of sesame oil / beeswax mixture: weigh 100g beeswax and 1000g sesame oil, mix them, heat and stir until the beeswax dissolves.
[0024] (3) Preparation of carboxymethyl chitosan solution, sesame oil and beeswax mixed solution: the 15% carboxymethyl chitosan solution prepared in step (1) and the prepared sesame oil / beeswax mixed solution in step (2), both Mix, heat, and stir well.
[0025] (4) Dip the spunlace non-woven fabric with a thickness of 0.5 mm into the mixture of carboxymethyl chitosan solution, sesame oil and beeswax, take it out after 5 minutes, pack it in an inner packaging bag, and finally sterilize it by irradiation.
Embodiment 2
[0027] (1) Preparation of carboxymethyl chitosan solution: Weigh 25 g of carboxymethyl chitosan, add 475 g of purified water, stir until dissolved, and prepare a 5% carboxymethyl chitosan solution.
[0028] (2) Preparation of sesame oil / beeswax mixture: weigh 200g beeswax and 1000g sesame oil, mix them, heat and stir until the beeswax dissolves.
[0029] (3) Preparation of carboxymethyl chitosan solution, sesame oil and beeswax mixed solution: the 5% carboxymethyl chitosan solution prepared in step (1) and the prepared sesame oil / beeswax mixed solution in step (2), both Mix, heat, and stir well.
[0030] (4) Immerse the spunlace non-woven fabric with a thickness of 2 mm into the mixture of carboxymethyl chitosan solution, sesame oil and beeswax, take it out after 10 minutes, package it in an inner packaging bag, and finally sterilize it by irradiation.
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