• Title/Summary/Keyword: Silk fiber

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Effect of the Calcium Nitrate Solution Treatment on the Tensile, Bending, and Shear Properties of Silk Fabric

  • Park, Su-Zin;Kang, Ji-Young;Seol, Da-Won;Yang, Hye-Min;Lee, Ji-Min;Ahn, Ye-Ji;Han, Seo-Young;Kim, Jong-Jun
    • Journal of Fashion Business
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    • v.14 no.6
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    • pp.39-52
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    • 2010
  • Interests in creating three-dimensionally designed fabric materials are growing rapidly in the sectors of the fashionable textiles with the creativity, new functions, and aesthetics. A number of finishing methods have been developed and proposed to add or create new functions and designs for silk fabrics. Due to the strong hydrogen bonds between the molecules of silk fibroins, the thermal treatment methods used in thermoplastic fiber processing, which can easily deform the synthetic filament fabrics to endow three-dimensional appearance to the fabrics, are not applicable to the silk fabric treatment. In order to modify the fine structure of silk fiber, neutral salt solution treatment methods have been suggested. In this study, the effect of the calcium nitrate solution on the physical and mechanical properties of silk fabrics was investigated by using the KES(Kawabata Evaluation System) equipment. Based on these findings, relationships between parameters, for example, the thickness and the compressional energy, the thickness and the compressional linearity, and the air permeability and the pore area statistical analysis were investigated. The relationships between the process parameters such as treatment temperature/time and the resulting fabric property parameters were also analyzed by using several SAS procedures.

Interfacial Adhesion of Silk/PLA Biocomposites by Plasma Surface Treatment (플라즈마 표면처리에 의한 Silk/PLA 바이오복합재료의 계면접착)

  • Chu, Bo Young;Kwon, Mi Yeon;Lee, Seung Goo;Cho, Donghwan;Park, Won Ho;Han, Seong Ok
    • Journal of Adhesion and Interface
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    • v.5 no.4
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    • pp.9-16
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    • 2004
  • Silk fibers were subjected to argon and ethylene plasma treatments in order to improve the interfacial adhesion with polylactic acid (PLA). After the plasma surface treatment, the surface morphology and surface adhesion of silk fibers to the PLA resin were largely changed. Various plasma treatment conditions were used in this work: 10, 25, 50, 100 and 150 W of electric power, 1, 3, 5, 7 and 10 minutes of treatment time, and 10 and 50 sccm of a gas flow rate. The interfacial shear strength of plasma-treated Silk/PLA biocomposites was measured by a single fiber micro-droplet debonding test method. The result provided an optimal plasma treatment condition to obtain the improved interfacial adhesion in the Silk/PLA biocomposites.

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The Effect of Benzyl Alcohol on Dyeing Properties of Silk fiber (I) - The Rate of Dyeing by Milling Acid Dye - (Benzyl Alcohol이 견섬유의 염색성에 미치는 영향(I) - Milling계 산성염료에 의한 염색속도 -)

  • 탁태문;김종호;배도규
    • Textile Coloration and Finishing
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    • v.4 no.2
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    • pp.55-63
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    • 1992
  • The effects of benzyl alcohol on the properties of dyeing kinetic of silk fibroin were studied. The acid dye used was C.I. Acid Red 114. The half dyeing time is shorten by addition of benzyl alcohol. The diffusion activation energy is higher with the increase of the solvent. The rate of dyeing at benzyl alcohol addition to the purified silk fibroin is faster than that of the unpurified one.

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Studies on Methacrylate Finish with Silk Fabrics and their Anticrease (Methacrylate 견직물가공과 방추도개선에 대한 연구)

  • 최병희;이양후
    • Journal of Sericultural and Entomological Science
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    • v.28 no.2
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    • pp.65-73
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    • 1986
  • These studies are carried out to improve silk availability for anticrease by useing methacrylate monomer polymerization method with in silk fiber. For this purpose, degree of anticrease, stiffness and shrinkage of various silk fabrics, included finish or not, after repeat of washings and polyster fabric was compared as standard. The adopted samples are ; 1. Polyester, Georgette, Woven density…90cm-85g/m 2. Silk, Twill, Degumed, Light, Woven density…90cm-90g/m 3. Silk, Twill, Degumed, Heavy, Woven density…90cm-200g/m 4. Silk, Stain, Degumed, Light, Woven density…90cm-90g/m The reached results are as followings. 1. The results of improving on anticrease by the finished method were about ten per cent increase against their original samples. 2. The light density silks showed satisfactory improve for anticrease, but the heavy one remained as rather poor condition. 3. The results for degree of textile stiffness were investigated to make sure reserve their textile feeling and observed to be good condition upon the finish work. 4. Textile shrinkage after the repeat of soap wash was investigated on indivisual test sample and silk fabrics showed more shrinkage than polyester which it seemed to be tentering shrinkage druning their general finishing processes. 5. The investigation showed that anticrease, stiffness and shrinkage of the sample textile were more or less deteriorated regardless silk or polyester by the repeat of washings. These matters are considered that such results were obtained because of the fiber fatigue nature. 6. The report reached that silk textiles should be used by dry cleaning methed after finish of any resin finish to reserve their improved anticrease nature.

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A Study on the Pharmacetical and Chemical Characteristics of Natural Artemisia Extract (천연 쑥 추출물의 약리 및 화학적 특성 연구)

  • Sung, Ki-Chun
    • Journal of the Korean Applied Science and Technology
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    • v.26 no.1
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    • pp.51-59
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    • 2009
  • Natural Artemisia extraction was extracted from Artemisia component using diethyl ether as a solvent, and we tested various pharmacetical and chemical characteristics of this extract. Characteristic experiments to use natural Artemisia extract tested antimicrobial experiment using microbe in pharmacetical material, and tested dye experiment using fiber in chemical material. From the result of characteristics experiment, some conclusions are obtained as follow. From the result of extraction experiment, it obtained about 10.4%-Artemisia extraction ratio as semi-solid state, and after dried in freezing from Artemisia extract of semi-solid state, it obtained about 10%-Artemisia extraction ratio as solid state of dark blue-green color. From result of antimicrobial experiment of Artemisia extract, number of staphylococcus aureus (ATCC-01) and aspergillus niger (ATCC-02) in microbe decreased more and more according to time passage. This phenomenon showed that Artemisia extract influences to antimicrobial effect. From the result of dye experiment of Artemisia extract, it appeared in direction of dark blue-green color after dyed to use cotton and silk with fiber to control in pH 7.5. Specially the result which confirmed dye of fiber with optical electron microscope (OEM), we could know that it appears darker silk than cotton.

Dyeability of the Fabrics dyed with Herb Extracts (허브 추출물에 의한 직물의 염색 특성)

  • Goo, Sin Ae;Kang, In Sook;Bae, Hyun Sook
    • Textile Coloration and Finishing
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    • v.28 no.1
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    • pp.23-32
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    • 2016
  • This study examined the dyeability of fabrics dyed with rosemary, mint, sage, and thyme herb extracts. The herb extracts were pulverized and characterized by UV and FT-IR analysis. Dyeing properties of herb colorants on cotton, silk and wool fiber and effect of dyeing conditions on dye uptake were compared. The constituents of four different herbs were shown to be similar to each other. The dye uptake of rosemary and sage were shown to be larger than those of mint and thyme regardless of the fiber types. Affinity of herb colorants to protain fibers was higher than to cellulose fiber. Compared with silk and wool, the dyeability of cotton was the worse, the dye uptake of silk and wool fibers were increased along with dyeing time and dyeing temperature. As the dye uptake increased with increasing of the dye concentration, and its isothermal adsorption curves were langmuir type, indicating that ionic bonding was involved in the adsorption of herb colorants to the fibers.

A Study on the Pharmaceutical and Chemical Characteristics of Natural Grape Extract (천연 포도 추출물의 약리 및 화학적 특성 연구)

  • Sung, Ki-Chun
    • Journal of the Korean Applied Science and Technology
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    • v.26 no.3
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    • pp.341-349
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    • 2009
  • Natural grape extraction was extracted from grape component using diethyl ether as a solvent, and we tested various pharmaceutical and chemical characteristics of this extract. Characteristic experiments to use natural grape extract tested antimicrobial experiment using microbe in pharmaceutical material, and tested dye experiment using fiber in chemical material. From the result of characteristics experiment, some conclusions are obtained as follow. From the result of characteristics experiment, it obtained about 7.5%-grape extraction ratio as semi-solid state, and after dried in freezing from grape extract of semi-solid state, it obtained about 10%-grape extraction ratio as solid state of dark purple color. From result of antimicrobial experiment of grape extract, number of staphylococcus aureus (KCMC-01) and aspergillus niger (KCMC-02) in microbe decreased more and more according to time passage. This phenomenon showed that grape extract influences to antimicrobial effect. From the result of dye experiment of grape extract, it appeared in direction of dark purple color after dyed to use cotton and silk with fiber to control in pH 7.5. Specially the result which confirmed dye of fiber with optical electron microscope(OEM), we could know that it appears darker silk than cotton.

Studies of Low Temperature Dyeing on Silk Fiber II. Low Temperature Dyeing of Silk Fiber with the Complex Dye (견의 저온염색에 관한 연구 II. 산성 Metal Complex 염료에 있어서의 저온염색)

  • 배도규;배현석
    • Journal of Sericultural and Entomological Science
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    • v.35 no.1
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    • pp.48-51
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    • 1993
  • Using the new type auxiliary(K-1), dyeing experiment was done at the various dyeing conditions and the effects of auxiliary on the dyeing properties of metal complex dye for the silk fiber were dicussed. The exhaust rate was higher in the auxiliary 3% o.w.f. addition than sodium sulfate 50% o.w.f. The decreasing ratio of exhaust rate according to dye concentration increasing was lower at auxiliary addition than auxiliary non-addition. The exhaust rate according to increasing dyeing temperature was higher in the auxiliary addition than non-addition.

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