• Title/Summary/Keyword: Fabric surface

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Electrically Conductive nylon 6 fabric prepared by in situ Polymerizationof Polyaniline (폴리아닐린의 in situ 중합에 의한 전도성 나일론 직물의 제조)

  • 홍경화;김은애
    • Journal of the Korean Society of Clothing and Textiles
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    • v.23 no.2
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    • pp.326-334
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    • 1999
  • Polyaniline(PAn)-nylon 6 composite fabrics were prepared by immersing the nylon 6 fabrics in 100% distilled aniline for specified diffusion time and drawn out. Then the excess aniline on the fabric surface was blotted and successive polymerization was initiate by immersing them into oxidant and dopant solution for in situ polymerization of polyaniline. Consequently highly conductive PAn-nylon 6 composite fabrics could be obtained and the conductivity reaches as high as 10-2 S/cm. The maximum conductivity was obtained when the fabric was immersed in 100% aniline at 4$0^{\circ}C$ for 3hours and polymerization was proceeded in 0.25M ammonium peroxydisulfate solution at 5$^{\circ}C$ for 1hour.

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Improvement of dyeability of cotton with natural cationic dye by plasma grafting

  • Haji, Aminoddin;Barani, Hossein
    • Proceedings of the Korean Society of Dyers and Finishers Conference
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    • 2010.03a
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    • pp.29-30
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    • 2010
  • Cotton fabric is usually dyed with anionic dyes such as direct and reactive dyes. Naturally, there is no affinity for basic dyes to cotton fiber. In this study, to improve the dyeability of cotton fiber with cationic dyes, the fabric was pretreated with air plasma and grafted with acrylic acid to create acidic groups on the surface of cotton fibers. The grafted samples were dyed with natural cationic dye extracted from roots of berberis vulgaris. The effect of plasma treatment and grafting of acrylic acid on the color strength of cotton fabric was studied.

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Radiation-Induced Graft Copolymerization of Hydrophilic Monomers to Polyester

  • Lee, Chong-Kwang;Park, Jae-Ho
    • Nuclear Engineering and Technology
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    • v.4 no.2
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    • pp.90-101
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    • 1972
  • Radiation grafting of acrylic acid to Polyester fabric has been studied by an impregnation method to render its surface more hydrophilic. Impregnated fabric was irradiated under nitrogen with gamma-ray from Co-60. The homopolymer formed usually could be extracted with water at 10$0^{\circ}C$. Graft-fabric exhibited a good acceptability to acid, basic or disperse dyes in conventional aqueous dye bath at moderate temperature.

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Evaluation of water absorption and thermal insulation properties of flooring board (플로어링보드의 흡수성 및 단열성 평가)

  • Park, Cheul-Woo;Lim, Nam-Gi;Lee, Dong-Gun;Jo, Young-Bin
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2021.11a
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    • pp.178-179
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    • 2021
  • Comparing the absorption volume of test pieces immersed over time in room temperature moisture with weight, WF absorbed about 40% more than PLAIN, and PLAIN stopped absorbing after 10 minutes, but WF continued to absorb. It is thought that the woven fabric layer of the core material continued to absorb moisture. In the heat transfer test, the test piece to which only WF was applied had a temperature difference of about 2℃ compared to PLAIN, and when the insulating liquid was sprayed, there was a difference in heat transfer properties of up to 5℃. This is judged to have low heat transfer properties of the basic woven fabric, but the heat insulating liquid also further reduces heat transfer properties.

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The Physical Properties of Cotton Fabric Pretreated with Skim Milk Powder (탈지분유 전처리에 의한 면직물의 물성)

  • Lee Su Min;Song Wha Soon
    • Textile Coloration and Finishing
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    • v.17 no.1
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    • pp.52-59
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    • 2005
  • The purpose of this study is to establish the scientific data of cotton fabric pretreated with skim milk powder and to improve the dyeability. The surface monophology, add on, whiteness, stiffness, air permeability, moisture regain and absorption of cotton fabrics were evaluated by varying concentration of SMP to get the optimal conditions in pretreatment. FT-IR of cotton fabrics pretreated with SMP were measured. Amino acid compositions, viscosity of SMP were evaluated. The K/S values by varying concentration of cinnamon cassia and subtract of dyed SMP-C were measured. I attempted to evalute the color fastness of untreated and AI. The results are as follow; The optimal concentration of SMP was 9%(w/v) to be pretreated with cotton fabrics. From FT-IR spectrum, formation of -NH$_2$ and -COOH was verified by SMP-C. Denaturalization of protein and condensation of carbohydrate, fat, etc. were found in a measurement of amino acid and viscocity. The K/S value of cotton fabrics pretreated with SMP was higher than that of untreated. Most of the color fastnesses were great.

Frictional Sounds and Its Related Mechanical Properties of Vapor Permeable Water Repellent Fabrics for Active Wear (스포츠웨어용 투습발수직물의 마찰음과 관련 역학적 성질 비교)

  • 조길수;박미란
    • Proceedings of the Korean Society for Emotion and Sensibility Conference
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    • 2003.05a
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    • pp.8-13
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    • 2003
  • Frictional sound of 13 vapor permeable water repellent fabric by sound generator were recorded and analysed through FFT analysis. The frictional Sounds were quantified by calculating total sound pressure(LPT), the level range ΔL and the frequency difference Δf. Mechanical properties were measured by KES-FB. LPT values of specimens finished wet coating were higher than those of dry coating. Values for bending rigidity, shear stiffness, surface roughness and compressional recovery of polyurethane fabrics increased compared with the cire finished fabrics. Laminated fabrics had high values of frictional coefficient and low values of surface roughness. LPT showed significant correlation with compressional energy, weight and thickness. (ΔL) was highly correlated with compressional linearity, frictional coefficient, compressional recovery, and (Δf) with tensile linearity, compressional energy, thickness, and weight.

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A Study of Fabric Properties for Classified on Apparel Material Image (의류소재 이미지 분류에 따른 직물 특성 연구)

  • 박기윤
    • Journal of the Korea Fashion and Costume Design Association
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    • v.3 no.1
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    • pp.15-31
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    • 2001
  • Textile fabrication affected by consumer and selected by fashion designer. The textile fabrication has been made not only by introducing the newly developed fiber but also by modifying the existing textile materials to impart sensibility to them. Consumers choose but to their sensibility of textile material and fashion trend. On purpose in this research is find out have influence on textile image. Wool fabrics have been in use from early age in northern Europe. Recognition of the role of the morphological structure, surface properties, chemical composition, acid-base characteristics in the chemical treatment of wool led to quantum advances in the fields of setting, shrink-resisting, chemical modification, and internal fiber cross-linking. Mechanical finishing to develop the handle, drape, and surface characteristics of the fabric is at least as important as chemical or wet finishing. Result showed that to have variety sensibility and trend theme in wool fabrics are tweed, venetian, serge, gabardine and melton.

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Evaluation of particulate removal in slow sand filtration processes (완속여과 공정에서 전처리 공정 도입에 따른 입자제거 효율평가)

  • Kim, Seong-Su;Bae, Chul-Ho;Park, No-Suk;Kang, Suk-Hyung
    • Journal of Korean Society of Water and Wastewater
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    • v.22 no.4
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    • pp.461-466
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    • 2008
  • Because of their simplicity, efficiency, and economy, slow sand filters are appropriate means of water treatment for small water systems. In this study, the effect of filtration velocity and dirty skin (Schmutzdecke) was evaluated on the performance of turbidity removal. Also, removal characteristics of particulate were investigated in the case of the usage of non-woven fabric on the surface of sand and the application of PCF as pretreatment process. Comparative column tests were carried out for the various operation condition. From the result of column tests, filtration velocity had little effect on the turbidity removal rate. The formation of algal biofilm on the surface of media is helpful in turbidity removal, while non-woven fabric is not as effective as expected. The relative contribution of biomass and accumulated particulates to head loss development in slow sand filters requires further study.

Wettability and Water Repellency of Polyester Fabrics Treated by Low Temperture Plasma (저온플라즈마처리에 의한 폴리에스테르직물의 흡수성 및 발수성 변화)

  • 권영아
    • Journal of the Korean Society of Clothing and Textiles
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    • v.19 no.2
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    • pp.317-328
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    • 1995
  • The objective of this study was to determine the effects of low temperature plasma on the surface properties of polyester fabric with respect to wettability and water repellency. Highly wettable polyester fabric surfaces were obtained by oxygen treatment. The improved wettabililty of oxygen plasma treated fabrics decreased with aging time up to 30 days, and then the wettability remained relatively constant and still exhibited significant improvement compared to that of untreated polyester. Water repellency was significantly improved by tetratfluorocarbon plasma treatment. Such an improvement appears due to introduced fluo\ulcornerrine atoms or a thin fluorocarbon film on the fiber surface. Water repellency remained constant in fact, even after 150 days.

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Studies on Fabrics woven with Silk/Polyester Compound Yarn (고치와 폴리에스텔 복합사 직물의 시직)

  • 김영대;김남정
    • Journal of Sericultural and Entomological Science
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    • v.36 no.2
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    • pp.147-151
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    • 1994
  • This study was carried out investigate the characteristics of Habutae and Chiffon woven with silk and polyester(S/P) compound yarn. The S/P compound yarn could be produced by the automatic reeling machine with attachment of air jetting device, polyester yarn guider and tension control apparatus. The surface structure, tensile property and dyeing fastness of S/P compound fabric were examined for the fabric properties. Electron microscopy revealed that most part of S/P compound yarn was well interlaced and some silk part of compound yarn were hidden by polyester on an examination of surface of chiffon fabric. By the one bath and two step dyeing of disperse and acidic dyes, the colour fastness of S/P compound fabrics were 4 grade above. The tenacity and initial modulus of the finished S/P compound fabric were lower than those of grey and degummed fabrics, but reversed in elongation.

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