• Title/Summary/Keyword: polyester fabric

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Radiation-Induced Graft Copolymerization of Acrylic Acid onto Polyester

  • Chang, Hoon-Sean;Kong, Young-Kun;Lee, Chong-Kwang;Park, Jae-Ho
    • Nuclear Engineering and Technology
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    • v.9 no.2
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    • pp.65-74
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    • 1977
  • The radiation-induced graft polymerization of acrylic acid onto polyester fabric was investigated with accelerated electron beams as ratiation source at high dose rates. Homopolymerization was suppressed by addition of cations which is known as homopolymerization inhibitor, but this practical advantage was obtained at the expense of grafting efficiency. The rate of grafting (%/sec) was proportional to the 0.82th power of dose rates over the range from 1.6$\times$10$^{6}$ to 10$\times$10$^{6}$ rad/sec. The grafted polyester fabric showed considerable improvement in moisture regain and antistatic properties.

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A Study on Dyeing of Silk-Polyester Fabric (絹과 Polyester合絲絹織物의 染色法改善에 關한 硏究)

  • Nahm, Joong-Hee;Chang, Byong-Ho
    • Journal of Sericultural and Entomological Science
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    • v.23 no.1
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    • pp.56-64
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    • 1981
  • The textile fabric contains the functions of sanitation, decoration, wearing style and washing in the practical use. Among various tetile fiber, silk has less utilities than synthetic fiber in practical use although silk has good benefits of the high quality of silk fabric. Thus no textile fiber, neither natural norsynthetic, has all the functions. In this sense, many compound fabrics have been improved to reveal various functions of fabric However, this has been disturbed with the problem of dyeing, expecially in the case of compound fabric of silk. The work is carried out to improve the dyeing method of compound fabric of polyester and silk. The results obtained are as follows: 1. In the dyeing of compound fabric(P/S fabric), azo dyes was more suitable than anthraquinone dyes. 2. According to the carrier, dyeing spot was appeared by the high concentration in bath. 3. Degree of dye fixation was decreased in dyeing of methylnaptharine carrier(D.N) and anion disperser(T.S). 4. The affinity of dye was suitable in the dyeing bath of azo dye, trichlorobenzene carrier and nonion disperser. 5. Dye fixation of silk side in compound fabric by acid dye showed higher in acid bath of dyeing. 6. In printing of silk and polyester compound fabric, it must be understood relationship among fibers, dyes, and steaming conditions.

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Pore Size and Distribution of Polyester Fabrics Determined by Liquid Extraction Method (액체유출법에 의한 폴리에스테르 직물의 기공 크기 및 분포 측정)

  • Lee, Dong-Hwa;Yeo, Suk-Yeong;Kim, Eun-Ae
    • Journal of the Korean Society of Clothing and Textiles
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    • v.21 no.1
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    • pp.206-216
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    • 1997
  • The purpose of this study was to determine the pore size distributions (PSDs) of polyester woven fabrics by using liquid extraction method. Three types of PSDs-percent PSD, PSD per unit area of sample and PSD per unit weight of sample-were evaluated. Plain, twill and satin polyester fabrics with various fabric counts were used as specimens. Results showed that the interyarn PSDs reflected the fabric characteristics such as the fabric count and the weave type and the intrayarn PSDs reflected the thread characteristics such as the number of fibers, the fiber diameter, the thread diameter and the thread twist. Of three types of PSDs, the PSD per unit area of sample best reflect fabric and thread characteritics. As the fabric count decreased, rc increased and interyarn pore volume increased. The PSDs were skewed to the small pore sizes and the pore volumes decreased in the order of plain> twill> satin. As the number of fibers, the fiber diameter and the thread twist decreased, the intrayarn pore volumes were increased.

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A Development of Polyester-based Non-woven Fabric Filter for Air Purifier Treated with Self-actuated Photocatalyst

  • Choi, Sei Young
    • Elastomers and Composites
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    • v.51 no.3
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    • pp.226-232
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    • 2016
  • We studied the photocatalytic functionality such as deodorant, antibacterial, fine dust collection efficiency of polyester-based non-woven fabric filter treated with self-actuated photocatalyst. According to UV/visible result, the UV-visible peak of visible-light responsive photocatalyst was found to be red shift at 420 nm sensitive in the visible light region. The deodorizing performance was shown to be reduced more than 80% even without dark conditions. Fine dust particles collection efficiency was shown to be excellent at the size of not only $2.5{\mu}m{\sim}10.0{\mu}m$ but also less than $2.5{\mu}m$. Also antimicrobial and antifungus was shown to be reduced more than 99.9%.

Dyeing of N/P Union Fabric with Reactive Disperse Dyes (반응성 분산염료를 이용한 N/P 교직물의 염색)

  • 김성동;이종렬;안창희;김규식;이권선
    • Textile Coloration and Finishing
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    • v.16 no.1
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    • pp.26-33
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    • 2004
  • Two reactive disperse dyes having $\alpha$-bromoacrylamide or acrylamide group were synthesized and their dyeing properties were compared with a disperse dye. Dyeing properties of reactive disperse dyes were strongly influenced by the chemical structure of reactive group. The amount of absorbed reactive disperse dye containing $\alpha$-bromoacrylamide group on polyester fiber was less than the disperse dye, and that on nylon fiber was much higher. When polyester and nylon fiber were simultaneously dyed in a dye pot, nylon fiber absorbed the reactive disperse dye more than polyester fiber. The reactive disperse dye having acrylamide group could reduces difference in color depth to a large extent, but the application of carrier or variation of dyebath pH were not sufficient for giving the same color depth to both fibers. The N/P union fabric could be dyed with the reactive disperse dye and its wash fastness were good to excellent.

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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A Study on the Relationship between Fabric Design Condition for Garment and Shrinkage on the Dyeing and Finishing Processes (의류용 직물설계조건과 염${\cdot}$가공 공정 수축률과의 상관성 연구)

  • Kim, Seung-Jin;Park, Kyung-Soon;Hong, Sang-Gi
    • Textile Coloration and Finishing
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    • v.17 no.5 s.84
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    • pp.45-52
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    • 2005
  • The optimum fabric design plan is recently needed with the relevant fabric shrinkage in dyeing and finishing processes for the various sensible fabrics for garment. For responding this need, the difference of fabric design plan such as fabric density, yarn count and finishing shrinkage has to be surveyed with weaving looms such as water jet, air-jet and rapier looms, and also has to be analysed with weave pattern such as plain, twill and satin according to the fabric manufacturers. Therefore, in this study, 420 polyester weave pattern sheets are collected from 5 fabric manufacturers, and the weave density coefficients of these fabrics are calculated using yarn count, fabric density and 1 repeat weave pattern. These weave density coefficients are analysed according to the fabric manufacturers, weaving looms and various weave patterns. And also the weave density coefficients of 420 polyester fabrics are analysed with finishing shrinkage according to the fabric manufacturers and various weave patterns such as plain, twill and satin fabrics.

Studies on Electrostatic Propensity of Fabrics (직물대전성에 관한 연구)

  • 최병희;배도규
    • Journal of Sericultural and Entomological Science
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    • v.27 no.2
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    • pp.54-63
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    • 1985
  • This studies has been carried out how to effect on electrostafic propensity of synthetic fabrics by coating with 0.5% acrylic polymer solution which was previously developed by the author to improve anticrease nature of silk. The work conditions are: (A) Applied synthetic polymer was acrylic polymer 525, developed by the author. (B) Electrostatic voltage for various fabrics were carried out by Korea standard abrasion partner with Korea standard (KS K 0905) cotton, nylon, polyester and the self sample fabric. (C) Applied fabrics for the investigations were carried out by using abrasion partner with Korea standard (KS K 0905) cotton, nylon, polyester and the self sample fabric. (D) Electrostatic propensity investigations were carried out by use of sample as silk, nylon, polyester and acrylic fabrics, seperating before finish or after finish. (E) Washing after the finish or the original fabric was carried out by Korea standard method, KS K 0465. Through the investigations, he happened to find many interesting matters and the obtained results are as followings. 1. Electrostatic voltage for the finished fabrics increased more than their original silk, nylon, acrylic fabrics except polyester fabric. (See Table 5) 2. Electrostatic voltage for the finished polyester against K.S. polyester decreased remarkably than the original fabric test. 3. In spite of no problem on electrostatic propensity of silk, it showed high electrostatic voltage between the same nature fabric abrasion, because silk is very weak against abrasion and because the test method had been developed to be useful for only synthetic fabrics. 4. Electrostatic voltage increased more in case of abrasion between different nature of fabrics than the same nature of fabrics. 5. Electrostatic voltage of each fabric increased by repeat of wash. 6. Many investigation data were followed with Contact Electrification Series Principle, another word, the farther each other located fabric on the series abrasion was, the higher electrostatic voltage. (See Fig. 6) 7. Such investigation gives warning of use on the mix fiber spinning service as far as concern with electrification. 8. It may also call attention for such increase of electrification in case any finishing of silk textile.

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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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Goniometric Image Analysis of Observed Color Change in Dyed Trilobal Cross-section Polyester Monofilament Fabrics

  • Lee, Jung-Min;Kim, Jong-Jun;Jeon, Dong-Won;Ahn, Byung-Tae;Choi, Jung-Im
    • Journal of Fashion Business
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    • v.11 no.6
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    • pp.115-124
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    • 2007
  • The cross-section of the polyester filament yarn has been modified to have a variety of shape for aesthetic, added functions and sensitivities, and other purposes. Transparent polyester filament of trilobal cross-section has unique optical properties with high anisotropic reflectivity and transmissivity. The monofilament yarns may be utilized to impart to the fabrics lustrous appearance along with unique color change in case differently dyed yarns are woven together. The color changes of the fabric specimens according to the changes in observation and lighting conditions were analyzed using a CCD camera and an image analysis software. The changes of color/luster of the fabric specimens were measured and analyzed based on RGB, $L^*a^*b^*,\;L^*C^*h,$ and the color distribution within a three-dimensional color space.