키토산 처리에 의한 위생용 부직포의 기능성 개질화 (제1보) -표면구조 및 태 변화- Functional Modification of Sanitary Nonwoven Fabrics by Chitosan Treatment (Part I) -Change of Surface Structure and Hand-원문보기
위생용 탑시트로 쓰이는 폴리프로필렌부직포에 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.
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.
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 chit...
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.
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.
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문제 정의
The purpose of this study was to investigate about functional modification of sanitaiy top sheet non woven fabrics by chitosan treatment. Surface struc ture, mechanical characteristics and change of hand value were examined.
The resulting changes in mechanical characteristics and hand were examined. The purpose of this study was to raise the availability of sanitary top sheet nonwoven fabrics by providing improvements in touch and function.
제안 방법
In order to determine the mechanical properties of the chitosan treated nonwoven fabrics, 16 mechani cal properties of the fabrics relating to tensile, bend ing, shearing, compression, surface characteristics, weight and thickness were measured using the KES- FB System(Kawabata Evaluation System, Kato Tech. Co. Ltd., Japan). The mean value was measured by 3 samples in standard conditions.
In addition to the changes in the mechanical prop erties of the fabrics, appearance characteristics such as the comfort, touch, and drapability of the clothing are affected when the surface of fabrics are treated with chitosan(Kim & Jeon, 1995). The mechanical properties of the nonwoven fabrics after treatment with chitosan were determined, hand was estimated based on the determined properties and examined the efficacy in finishing of sanitary top sheet nonwoven fabrics treated with chitosan. The change in mechan ical properties of the treated fabrics was measured using different molecular weights in order to clearly compare the dififerences in processing.
대상 데이터
100% polypropylene(0.16mm, 18.4g/m2) provided by Korea Vilene Co., Ltd. was used. Chitosan was provided by Chembio Co.
이론/모형
In order to objectively observe the changes in touch of the treated fabrics following the treatment of sanitary nonwoven fabrics with chitosan, mechanical properties were determined using the KES-FB Sys tem, from which the primary hand value(HV) was obtained according to the equation KN-302-LDY. Total hand value(THV) was calculated based on the primary hand value following KN-302-W-dress and compared.
Primary hand value(uV) such as Koshi, Numeri and Fukurami were calculated using the KN-302- LDY equation, and total hand vahje(THV) was cal culated using the KJM-302-W-dress convert equation based on determined primary hand value.
성능/효과
6>, there was a tendency for the value of 2HB/B of HMW chitosan treated fabrics to decrease sightly in comparison to that of the non treated while the value of LMW chitosan treated fab rics increased. From this, it was recognized that crumpling or deformation of HMW chitosan treated fabrics was suppressed, and stability of geometry thereof was improved more than those of LMW chi tosan febrics. Values in 2HB/B of HMW chitosan treated fabrics at a 0.
7>5 the values of G(shear stiff ness) increased regardless of Mw or the concen tration of chitosan. It was noticed that the values of G of HMW chitosan treated fabrics increased more than that of LMW chitosan treated due to attachment occurring between the fibers.
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