• Title/Summary/Keyword: chitosan fiber

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Preparation and Characteristics of PLA/Chitosan Nanofibers by Electrospinning (전기방사에 의한 PLA/Chitosan 나노섬유의 제조 및 특성)

  • 송민수;윤철수;지동선
    • Proceedings of the Korean Fiber Society Conference
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    • 2003.10b
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    • pp.263-264
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    • 2003
  • 전기방사는 섬유를 제조하는 전형적인 방법인 건식, 습식, 용융방사 등에 비해 설치가 간단하고, 관리하며, 장비 가격이 저가인 장점을 가지고 있다. 전기방사에 의해 제조된 웹은 단위부피당 큰 표면적을 가지고, 매우 작은 기공을 가지고 있기 때문에 필터소재, 강화섬유, 상처보호 치유소재, 인공혈관, 약물전달 시스템과 같은 의료용 소재 등 많은 분야에 응용이 가능하다[1]. (중략)

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Digital Ink-jet Printing for Chitosan-treated Cotton Fabric

  • Choi P. S. R.;Yuen C. W. M.;Ku S. K. A.;Kan C. W.
    • Fibers and Polymers
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    • v.6 no.3
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    • pp.229-234
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    • 2005
  • In this paper, chitosan was suggested for using as a replacement for sodium alginate in the pretreatment print paste for digital ink-jet printing for cotton fabric. Pretreatment print pastes prepared from the mixture of chitosan and acetic acid with the appropriate viscosity gave satisfactory prints on the cotton fabric. Chitosan-treated cotton fabrics were digitally ink-jet printed with four different colors and the color fastness rating of the printed fabrics was satisfactory. Experimental results revealed the possibility of pre-treating the cotton with chitosan to replace the sodium alginate normally present in the pretreatment print paste recipe.

Improvement of Migration Fastness of Perfluorocarbons-free Synthetic Suede by Chitosan Pretreatment (키토산 전처리를 통한 과불화탄소 무함유 합성 스웨이드의 이염성 견뢰도 향상)

  • Lee, Hye Mi;Kim, Ah Rong;Kim, Dae Geun
    • Textile Coloration and Finishing
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    • v.31 no.4
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    • pp.258-267
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    • 2019
  • Synthetic suede without PFCs(perfluorinated compounds) are followed by subsequent high temperature treatment. But migration fastness of synthetic suede may be reduced due to sublimation of disperse dyes that results from the high temperature treatment. Therefore, in this study, chitosan treatment was used to improve the migration fastness before polyurethane dipping process. Polyester fiber was treated with sodium hydroxide aqueous solution before chitosan processing. This samples treated with a chitosan concentration upto 0.5% were dyed and coated with PUD(polyurethane dispersion). The migration fastness was most improved at 0.35% application. This is presumably due to the fact that the chitosan may increase the dye-binding capability through intermolecular hydrogen bonding.

A Study on the Comfort Properties of Carbon Heated Socks (I) - A Study on the Subjective Sensitivity and Emotional Sensibility of Chitosan/SUS Fiber Socks Fabrics- (탄소섬유를 사용한 발열양말의 쾌적성 연구(제1보) - 키토산섬유와 SUS섬유의 양말 소재의 주관적 감각 및 감성에 관한 연구 -)

  • Lee, Ji-Eun;Kwon, Young-Ah
    • Fashion & Textile Research Journal
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    • v.12 no.1
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    • pp.103-108
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    • 2010
  • The purpose of this study was to analyze the effect of fiber contents of socks fabric on the subjective sensitivity and emotional sensibility of consumers. We investigated the relationship of subjective sensitivity and sensibility according to fiber contents and color value of socks. We made five plain knit fabrics as specimens, with a combination of chitosan/SUS fiber contents and three value levels of grayish color. The subjects were 15 males and 54 females in the twenties. The data analysis was conducted with Pearson's correlation analysis, ANOVA, Duncan multiple range test, and regression analysis. The major finds were as follows: A factor analysis showed that subjective sensitivity was classified into five factors (bulky, surface-rough, elastic, attention, and variety) and emotional sensibility was into four factors (salience, stability, luxury, and activity). There were significant correlation between the subjective sensitivity and emotional sensibility. The subjective sensitivities of 'surface-rough' and 'elastic' were significantly influenced by fiber contents. The sensibilities of 'salience' and 'luxury' were significantly influenced by fiber contents. Where as the 'salience' and 'roughness' were significant influenced by color value level. According to sex, there were significantly difference in 'bulky', 'elastic' and 'salience'. As a result of the regression analysis, preference, consuming desire and satisfaction appears to be closely related with all subjective sensitivity and sensibility.

Interfacial Properties and Microfailure Degradation Mechanisms of Bioabsorbable Composites for Implant Materials using Micromechanical Technique and Acoustic Emission (Micromechanical시험법과 Acoustic Emission을 이용한 Implant용 생흡수성 복합재료의 계면물성과 미세파괴 분해메카니즘)

  • Kim, Dae-Sik;Park, Joung-Man;Kim, Sung-Ryong
    • Proceedings of the Korean Society For Composite Materials Conference
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    • 2001.05a
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    • pp.263-267
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    • 2001
  • The changes of interfacial properties and microfailure degradation mechanisms of bioabsorbable composites with hydrolysis were investigated using micromechanical test and acoustic emission (AE). As hydrolysis time increased, the tensile strength, the modulus and the elongation of PEA and bioactive glass fibers decreased, whereas those of chitosan fiber changed little. Interfacial shear strength (IFSS) of bioactive glass fiber/poly-L-lactide (PLLA) composite was significantly higher than that two other systems. The decreasing rate of IFSS was the fastest in bioactive glass fiber/PLLA composite, whereas that of chitosan fiber/PLLA composite was the slowest. With increasing hydrolysis time, distribution of AE amplitude was narrow, and AE energy decreased gradually.

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