• 제목/요약/키워드: Dyeing, Fastness

검색결과 556건 처리시간 0.023초

천연염색물의 본래색 추정을 위한 변퇴색 경로에 관한 연구 -반복세탁을 중심으로- (Color Changes in Natural-Dyed Fabrics for Inference of the Original Color -through Repetitive Washing-)

  • 박명자;윤양노
    • 한국의상디자인학회지
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    • 제4권3호
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    • pp.9-15
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    • 2002
  • Compared with synthetic dyes, natural dyes have inferior colorfastness as a result of the exposure of the material to any environment that may be encountered during the processing, testing, storage, display or use of the dyed materials. Especially, colors on fabrics fade excessively after washing. Therefore, it is problem to infer the historic textiles with natural-dyed fabrics. The object of this study is to analyse the factors affected to colorfastness and color change during washing. In experimental, fifteen natural dyes were dyed by the Korean traditional dyeing methods onto natural fiber fabrics: cotton, silk, ramie, and flex. Total 49 dyed fabrics in combination with dyes and fibers were used for the specimen. The Launder-Ometer was used for evaluating the effects of exposure to repetitive washing from 1 to 20 washing cycles (KS K 0430). Color difference(ΔE) in the CIEL*A*B* color-order system were determined by spectrophotometer at 100 bserver. Washing caused significant changes in the color of natural-dyed fabrics. The degree and nature of color changes on the fabrics were dependent on the combination of fiber and the dye type used. The groups of violet(Lithospermum erythrorhizon Sieb.et Zucc) and black color(Ailanthus altissima Swingle, Phus trichocarpa Miq) yielded excellent colorfastness to repetitive washing. The group of indigo blue color(Polygonum tinctorium Lour.) was also very resistant to color change in washing except silk. Whereas the dye groups of Red, Yellow, Orange, Brown colors indicated greatest changes in color, particularly Carthamus tinctorius L.

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기능성 농약방제복 개발을 위한 소재 및 성능에 관한 연구 (The Textiles and the Performance Level in Developing the Pesticide Proof Clothing)

  • 황경숙;김경란;이경숙;김효철;김경수;백윤정
    • 한국의류학회지
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    • 제31권11호
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    • pp.1611-1620
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    • 2007
  • The precaution to spray with agricultural chemicals is very important, in particular personal protective equipment against pesticide in order to protect farmers# pesticide poisoning. The Ministry of Agriculture and Forestry has proclaimed the announcement of pesticide proof clothing(PPC) in 1983, and revised it in 1987. The announcement had many performance items to achieve the high-quality protective clothing for pesticide including weight, density, force strength, dimensional change(in washing and drying), fastness(dyeing, washing, sweating and rubbing) and water resistance of clothes. Announcement of the PPC has better durability and penetration resistance function than former days, but the plenty of farmers didn#t wear it because of the intolerable heat. To increase wearing rates, the pesticide proof clothing must be estimated the water-vapour resistance. From the results, the developed PPC with polyester treated water-repellent showed the more excellent comfort than an existing PPC with nylon coated polyurethane. But the developed PPC appeared to have the low water-vapour resistance. Therefore, it is suggested that the property of pesticide penetration must be evaluated through the field test in the future study.

자초 뿌리를 이용한 직물의 염색에 관한 연구 (The Fabrics Dyeing using Gromwell Roots)

  • 안경조;김정희;유혜자
    • 대한가정학회지
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    • 제41권1호
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    • pp.249-257
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    • 2003
  • For the efficiency in extracting gromwell colorant, methanol, ethanol and aceton were used as solvents. Also, to compare the results when dyed in various conditions and on various fabrics, the ratio of water-dye mixture, pH, temperature, and varieties of fabrics -wool, silk, cotton, nylon, ramie- were selected. L, a, b, ΔE, munsell and K/S value of each sample was measured and compared for the practical use. Water-dye mixture of 5:5 ratio showed the optimum dyeability. Not to mention wool and silk, but also cotton showed a satisfying dying result at the acidity of pH4. As the temperature increased, the dyeability of all three fabrics improved greatly. Especially, wool showed the highest improvement in terms of dyeability as the temperature increased. K/S values for wool and nylon showed superior results to the others in the gromwell colorant. The resulting color turned out somewhat different depending on the solvents used and the sort of fabric that was tested on. When the gromwell colorant extracted with methanol or ethanol was applied, the color of fabrics came out as purple or purpleblue. When the colorant extracted with acetone was used, the color of fabrics came out to be redpurple. The colorfastness to light showed low glades regardless to whichever solvents were used. The grades of colorfastness to laundering were recorded low numerical values, and its record became even lower when the gromwell colorant extracted with aceton was applied. The staining grade of the colorfastness to laundering showed a good grade in the range of 4 to 5. All the dyed fabrics showed a excellent drycleaning fastness.

Sodium Diethylene Glycolate (SDEG)에 의한 Polyester 신합섬직물의 감량가공에 관한 연구 (A Study on the Weight Reduction of PET Microfibre Treated with Sodium Diethylene Glycolate (SDEG))

  • Lee, Joo-Hyoung;Kim, Sam-Soo;Huh, Man-Woo;Yoon, Jong-Ho;Cho, Yong-Suk
    • 한국염색가공학회지
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    • 제8권3호
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    • pp.36-51
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    • 1996
  • In order to investigate the degradation behavior of PET fabrics, sodium diethylene glycolate (SDEG)-diethylene glycol (DEG) solutions were prepared and PET fabrics were treated in the solution. The dissolution rate constant and apparent activation energy of the PET fabrics were calculated by Eyring's and Arrhenius's equation respectively and measured dyeing properties, moisture and antistatic properties. Then compared SDEG-treated fabrics with NaOH-treated. The results were as follows; 1. PET fabrics decreased their weight in SDEG-DEG solution, and the decreasing rate showed a linear relationship to the treating time at constant temperature and concentration of SDEG-DEG solution. 2. The dissolution rate constant showed a linear relationship to the concentration of SDEGDEG solution and an exponential relationship to treating temperature. 3. Apparent activation energy of dissolution was 23.45 kcal/mol. 4. The K/S values and the ΔL values of fabrics treated with SDEG-DEG solution are higher and lower respectively than fabrics treated with NaOH. 5. SDEG-DEG solution treatment improved fabric's moisture regain and it reached almost maximum at about 40% weight loss. 6. In the both reagent the light, wet and sublimation fastness of fabrics are similar. 7. SDEG-DEG solution gave more electrical discharge effect to the fabrics than that of NaOH. 8. NaOH treated PET microfiber have crater-like surface, while SDEG-DEG solution give bathochromic effect to the PET microfiber because which has wrinkles on the surface.

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반응성 안료의 DTP공정 적용에 따른 HTPE원단의 태 시뮬레이션 및 염색성 연구 (Simulation of the Stiffness of HTPE Fabric according to the Application of Reactive Pigment DTP Process and Dyeability)

  • 심지현;이종혁;유성훈;권기환;배진석
    • 한국염색가공학회지
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    • 제33권4호
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    • pp.210-219
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    • 2021
  • It was intended to conduct basic research to reduce development lead time and cost consumed in DTP process technology development. For the simulation of HTPE fabric, virtual engineering software was used to generate fiber model, yarn model, fabric model, and finite element model of HTPE fiber. The purpose of this study is to analyze the correlation and error rate between the stiffness numerical analysis results according to the direct DTP process parameters using reactive dyes in the generated finite element model and the stiffness measurements of the actual sample ac- cording to ASTM D1388. And, after dyeing the HTPE plain fabric according to the direct DTP process parameters, we want to analyze the dyeability of the HTPE fabric fabrics according to the direct DTP process parameters through the color fastness analysis. When looking at the results of the analysis of the finite element model, a higher value was shown when the distance between the nozzle and the fabric was 3mm than when the distance was 10mm. When the distance between the nozzle and the fabric was 10mm and 7mm, the reactive dye did not penetrate sufficiently, resulting in poor clarity when viewed with the naked eye.

홍화의 홍색소 추출 용제의 종류에 따른 색상 변화 (Effect of Extraction Solvents on Color of the Dyed Fabrics with Safflower Red Colorants)

  • 손경희;신윤숙;류동일;최희;조아랑
    • 한국의류학회지
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    • 제32권3호
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    • pp.486-493
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    • 2008
  • 전통적인 알칼리 추출액인 콩대 잿물과 탄산칼륨수용액을 사용하여 홍색소를 추출하고 면, 마, 레이온, 견, 모, 그리고 나일론 직물에 염색하였다. 염색한 직물의 표면반사율과 염착량, 표면색을 측정하여 추출용제에 따른 차이를 비교 하였으며, 염색견뢰도를 평가하여 다음과 같은 결론을 얻었다. 1. 면, 마, 레이온, 그리고 견직물의 표면반사율 곡선은 추출용제에 따라 거의 같은 형태를 보였으며 최대흡수파장은 520nm에서 나타났다. 모와 나일론의 표면반사율 곡선형태는 추출용제간에 차이를 보였으며 최대흡수파장은 400nm에서 나타났다. 그리고 최대흡수파장 이외에 모는 520nm, 나일론은 540nm 파장부근에서 흡수대를 보였다. 2. 면, 마, 레이온, 견의 염착량은 잿물로 추출한 경우에 약간 더 높았으며, 모는 추출용매에 상관없이 비슷한 염착량을 보였고, 나일론은 탄산칼륨으로 추출한 경우에 약간 더 높게 나타났다. 3. 나일론 직물의 $L^{*}$값과 레이온의 $b^{*}$값을 제외하고는 탄산칼륨으로 추출하여 염색한 직물의 $L^{*},\;a^{*},\;b^{*}$, 그리고 $C^{*}$ 값이 잿물 추출에서 보다 더 높게 나타났다. 단 $a^{*},\;b^{*},\;C^{*}$ 값은 모와 나일론을 제외하고는 추출용제간의 차이가 매우 미비하였다. 잿물과 탄산칼륨 추출액으로 염색한 직물의 색차는 면, 견, 마, 레이온, 모직물, 그리고 나일론 순으로 크게 나타났다. 4. 잿물과 탄산칼륨수용액 추출에 의한 색상계열 차이는 나타나지 않았으며, 면, 레이온, 나일론은 RP계열, 마와 견은 R계열, 그리고 모는 YR계열로 나타났다. 나일론을 제외하고는 탄산칼륨수용액으로 추출한 경우에 더 밝고 선명한 색상으로 염색되었다. 5. 추출용제에 따른 세탁견뢰도에는 차이가 없었으며, 나일론, 레이온, 그리고 면과 마의 순으로 우수하였고 이염도 거의 나타나지 않았다. 견과 모의 드라이클리닝 견뢰도도 매우 우수하였다. 일광견뢰도도 추출용제에 따른 차이를 보이지 않았으나, 매우 낮게 나타났다. 6. 색상과 견뢰도 등에 큰 차이가 없으므로 전통적인 잿물 대신 탄산칼륨수용액을 추출용제로 사용하는 것이 색의 재현성이나 공정상의 측면에서 색의 표준화연구에 더 효율적인 방법이라 사료된다.