Journal of the Korean Society of Clothing and Textiles (한국의류학회지)

The Korean Society of Clothing and Textiles (한국의류학회)
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Functional Modification of Sanitary Nonwoven Fabrics by Chitosan Treatment (Part I) -Change of Surface Structure and Hand-

키토산 처리에 의한 위생용 부직포의 기능성 개질화 (제1보) -표면구조 및 태 변화-

  • Bae Hyun-Sook (Dept. of Clothing & Textiles, Changwon National University) ;
  • Kang In-Sook (Dept. of Clothing & Textiles, Changwon National University)
  • Published : 2006.02.01
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Abstract

Chitosan, a natural polymer has been used to nonwoven fabrics based polypropylene for sanitary top sheets. The changes in mechanical properties relating to the surface structure of functionally improved nonwoven fabrics were investigated with respect to the molecular weight and concentration of chitosan that was used. Low molecular weight(LMW) chitosan treated fabric was found to be evenly coated on the fabrics. It was shown that the bending and shearing characteristics of chitosan treated fabrics increased, which helped to make it stronger and harder, while shape stability improved following treatment using high molecular weight(HMW) chitosan. And the surface structure of treated fabrics was smooth and the sensitivity of its bulk improved somewhat. The treated fabrics were not overly stiff because the increase in Koshi value was not considerable compared to that of the bending characteristics. In the change of hand value relating to chitosan treated fabrics, THV generally improved. In the case of a 0.5$\%$ chitosan, HMW chitosan treated fabrics produced better THV than LMW chitosan treated fabrics. However, in the case of a 1.0$\%$ chitosan, THV of LMW chitosan treated fabrics produced outstanding results.

위생용 탑시트로 쓰이는 폴리프로필렌 부직포에 천연고분자이며, 인체친화력이 우수한 가공제인 키토산을 사용하여, 키토산의 분자량과 처리농도를 변화시켜 처리하므로써 기능성 개질화된 부직포의 표면구조와 역학적 성질 및 태의 변화를 살펴보았다. 저분자량의 키토산 처리포가 더 균일하게 코팅되었으며, 분자량과 처리농도가 클수록 부착률이 증가하였다. 키토산 처리포는 굽힘특성과 전단특성이 증가하여 다소 강경해지고, 형태안정성은 고분자량의 키토산 처리 시 더 향상되었다. 표면 촉감은 매끄러워졌으며, 부피감이 다소 향상되었다. 굽힘특성의 증가에 비해 Koshi의 증가가 크지 않으므로 지나치게 뻣뻣해지지는 않았고, 키토산 처리농도가 증가할수록 저분자량의 키토산 처리포가 더 매끄러워졌으며, 벌키성이 부여되었다. 키토산 처리에 의한 위생용 부직포의 태 변화는 미처리포에 비해 전반적으로 THV가 향상되었으며, 키토산 처리농도가 0.5$\%$일 경우 고분자량의 키토산 처리포의 THV가 더 좋았으나, 처리농도가 1.0$\%$일 경우는 저분자량의 키토산 처리포의 THV가 더 우수하였다.

Keywords

References

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