Title:
METHOD FOR MANUFACTURING DRY/WET WOUND DRESSING, AND WOUND DRESSING MANUFACTURED THEREBY
Document Type and Number:
WIPO Patent Application WO/2018/079899
Kind Code:
A1
Abstract:
The present invention provides a method for manufacturing a wound dressing, comprising the steps of: (a) coating a first mixture solution containing an organic acid and 0.01-3 wt% of chitosan so as to form a blood coagulation assisting layer on the upper surface of a fabric layer included in a gauze part; (b) forming a blood coagulation promotion layer by coating a second mixture solution, containing 0.1-20 wt% of kaolin, on the upper surface of the blood coagulation assisting layer in step (a), thereby manufacturing the gauze part comprising the fabric layer having the blood coagulation assisting layer and the blood coagulation promotion layer, which are sequentially stacked thereon; (c) coating an adhesive on one surface so as to manufacture a support part comprising an adhesive layer; and (d) attaching the gauze part, which is manufactured in step (b), to the upper surface of the adhesive layer of the support part, which is manufactured in step (c). According to the present invention, the method for manufacturing a wound dressing forms a blood coagulation assisting layer by coating a first mixture solution containing an organic acid and chitosan on a fabric layer, and forms a blood coagulation promotion layer by coating a second solution, containing kaolin, on the upper surface of the blood coagulation assisting layer, and thus kaolin becomes negatively charged through the pH of the organic acid contained in the blood coagulation assisting layer, and positively charged chitosan and kaolin are bound so as to have sufficient bonding force through an ionic bond, thereby effectively preventing the separation of kaolin from a fabric, and thus a wound dressing exhibiting an excellent hemostatic effect can be manufactured.
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Inventors:
KIM TAE JUN (KR)
Application Number:
PCT/KR2016/012479
Publication Date:
May 03, 2018
Filing Date:
November 01, 2016
Export Citation:
Assignee:
UNHEALTHCARE CO LTD (KR)
International Classes:
A61F13/00; A61F13/02; A61L15/18; A61L15/28; A61L15/32
Foreign References:
| JP2012096082A | 2012-05-24 | |||
| KR20150027134A | 2015-03-11 | |||
| US20110052665A1 | 2011-03-03 | |||
| US5836970A | 1998-11-17 | |||
| US4748978A | 1988-06-07 |
Attorney, Agent or Firm:
KIM, Jung Su (KR)
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