Carboxymethyl chitosan band-aid and preparation method thereof

A carboxymethyl chitosan and band-aid technology, which is applied in medical science, dressings, bandages, etc., can solve the problems of low preparation efficiency, long preparation time and complicated process, and achieve the effect of excellent air permeability and liquid absorption performance.

Inactive Publication Date: 2013-06-12
SUZHOU EMY MEDICAL SUPPLIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This patent solution is also not made of carboxymethyl chitosan fiber non-woven fabric, especially through the description of column 0004 and 0005 of the specification, it is known that the mixed solution needs to be poured into the mold and freeze-dried (15-35h), so Not only the preparation time is long, the process is complicated, but also the preparation efficiency is low

Method used

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  • Carboxymethyl chitosan band-aid and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] preparation figure 1 The steps of the carboxymethyl chitosan band-aid of the shown structure are as follows:

[0026] A) To prepare carboxymethyl chitosan fiber non-woven fabric, the carboxymethyl chitosan fiber with a fineness of 2.2-3.5dtex and a length of 4-8 cm is opened by an opener, carded by a carding machine and laid in turn After machine-laying, the net is needle-punched by a needle-punching machine to obtain a wound protection layer 2 made of carboxymethyl chitosan fiber non-woven fabric with a grammage of 120g / ㎡;

[0027] B) Composite, put the wound protection layer 2 made of carboxymethyl chitosan fiber non-woven fabric obtained in step A) and the anti-adhesion film 21 with a gram weight of 20g / ㎡, that is, a mesh-shaped isolation film, together in a composite On the discharge rack of the machine, and the side of the anti-adhesion film 21 corresponding to the wound protection layer 2 is introduced into the compound roll of the compound machine under the sync...

Embodiment 2

[0031] Only change the gram weight of the carboxymethyl chitosan fiber non-woven fabric in step A) to 70g / ㎡; change the gram weight of the anti-adhesion film 21 in step B) to 15g / ㎡, and change the composite temperature to 115°C, change the pressure of the composite roll to 0.5MPa, change the line speed of the composite roll to 8m / min; change the width of the strips in step C) to 1cm; change the matrix in step D) The width of layer 1 and peeling layer 3 are both changed to 1 cm, the thickness of adhesive layer 11 is changed to 0.1 mm, and the weight of peeling layer 3 is changed to 60 g / ㎡. All the other are the same as the description to embodiment 1.

Embodiment 3

[0033] Only change the gram weight of the carboxymethyl chitosan fiber non-woven fabric in step A) to 90g / ㎡; change the gram weight of the anti-adhesion film 21 in step B) to 18g / ㎡, and change the composite temperature to 110°C, change the pressure of the composite roll to 0.4MPa, and the line speed of the composite roll to 6m / min; change the width of the strips in step C) to 1.9cm; change the matrix layer in step D) 1 and the width of the release layer 3 are both changed to 1.9㎝, the thickness of the adhesive layer 11 is changed to 0.3㎜, and the gram weight of the release layer 3 is changed to 80g / ㎡. All the other are the same as the description to embodiment 1.

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Abstract

The invention discloses a carboxymethyl chitosan band-aid and a preparation method thereof, belonging to the technical field of medical dressings. The carboxymethyl chitosan band-aid comprises a matrix layer, a wound protection layer which is combined with one side surface of the matrix layer and a peeling layer which covers one side of the matrix layer and shields and protects the wound protection layer, wherein a wavy non-woven medical air-permeable adhesive tape of which one side surface is provided with an adhesive-carrying layer is used as the matrix layer; a carboxymethyl chitosan fiber non-woven fabric is used as the wound protection layer, one side surface of the wound protection layer is combined with an anti-adhesion membrane, and the other side surface of the wound protection layer is combined with the adhesive-carrying layer; and glassine paper is used as the peeling layer. The carboxymethyl chitosan fiber non-woven fabric is used as the wound protection layer, so that ideal effects of stopping bleeding, resisting bacteria, promoting healing and relieving pain can be embodied, and the air permeability and the solution absorption performance of the carboxymethyl chitosan band-aid are excellent.

Description

technical field [0001] The invention belongs to the technical field of medical dressings, in particular to a carboxymethyl chitosan band-aid and a preparation method of the carboxymethyl chitosan band-aid. Background technique [0002] Band-aid is a common medical application that is easy to use and economical and suitable for hemostasis and wound protection on small wounds. A non-woven hemostatic pad with an anti-adhesion film is attached to the side. Due to the limitation of its structure, this kind of band-aid can only deal with the emergency treatment of small wounds, so as to temporarily stop bleeding and protect the wound surface. However, in recent years, with the continuous introduction of functional biomaterials and the extension to the field of medical dressings, medical dressings have been enriched and functional band-aids have become a reality. [0003] The aforementioned functional band-aids mainly include two types: one is the drug-added type, which adds fun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L15/28A61L15/44A61F13/02
Inventor 周立新
Owner SUZHOU EMY MEDICAL SUPPLIES
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