• 제목/요약/키워드: Natural Dyes

검색결과 285건 처리시간 0.026초

천연염료에 관한 연구(7) -코치닐색소의 견섬유에 대한 염색성- (Studies on the Natural Dyes(7) -Dyeing properties of cochineal colors for silk fibers-)

  • 조경래
    • 한국염색가공학회지
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    • 제6권2호
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    • pp.40-46
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    • 1994
  • In order to study the properties of cochineal color, variation of uv, visible spectra by pH, dyeing properties on the silk in several dyeing conditions and thermodynamic parameter were investigated. Cochineal colors had an unusual to pH, especially had instability in alkali condition. An increase in the dyeing temperature and in time resulted in an increase in the dye content of silk fibers. Concentration of cochineal color in the silk fiber was related to pH and the maximum exhaustion of cochineal colors showed at about pH 3. The value of apparent diffusion coefficients and standard affinities of dyeing increased with the increase of dyeing temperature. The standard heats of dyeing(ΔH°), variation of entropy(ΔS°) and activation energy(E/sub act/) were caculated to be -1.72kcal/mo1, -3.77cal/mo1ㆍdeg and 1.26kcal/mo1, respectively. Silk fabrics were dyed bright red by tin chloride, reddish purple by copper sulfate, and bluish gray by iron sulfate, respectively. Lightfastness of silk fabrics mordanted by metal ion was weak.

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꽃을 이용한 천연염색 연구(I) - 괴화의 염색성 및 항균성 - (The Study of Natural Dyes on the Flowers(I) -The Dyeability and Antimicrobial Activity of Sophora japonica-)

  • 김병희;송화순
    • 한국의류산업학회지
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    • 제2권2호
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    • pp.113-117
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    • 2000
  • The extracts drawn out from Sophora japonica by methanol was concentrated. Using this concentrate the silk was dyed, 400% conc. of dyeing material, $80^{\circ}C$ temperature of dyeing, 30 min time of dyeing. The K/S value of silk fabric was the most efficient for the simmordanting method. On the other hand, the amount of absorbed mordant the Cu-mordant was largest mordants. The surface colors on the dyed fabric depended heavily upon mordants or mordanting methods. For all cases, the value of the dyed fabric was dark. for the mordanting, color difference was distinct when using the Fe-mordant. Lightfastness of the color fastness was best in Cu-mordant. The Fe-, Cu- mordant showed the greatest antimicrobial activity.

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PREPARATION OF CHITO-OLIGOSACCHARIDE AS AN ANTIMICROBIAL AGENT AND ITS EFFECT ON COTTON FABRICS

  • Seong, Ha-Soo;Kim, Jae-Pil;Ko, Sohk-Won
    • 한국섬유공학회:학술대회논문집
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    • 한국섬유공학회 1998년도 봄 학술발표회 논문집
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    • pp.329-333
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    • 1998
  • The major classes of antimicrobial agents for textiles include organo-metallics, phenols, quaternary ammonium salts, and organo-silicones. These finishes should be durable, have selective activity towards undesirable organisms, be compatible with other finishes and dyes, and be nontoxic to man [1]. Chitosan, as a deacetylated derivative of chitin, is a natural, non-toxic and biodegradable polymer. Chitosan is also known as an antimicrobial polysaccharide due to antimicrobial action of the amino group at the C-2 position of the glucosamine residue.(omitted)

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직물색소에 의한 염색 연구I -홍화의 색소 추출 및 자외가시분광특성- (Studies on the Dyeing with plant pigments -extraction and UV/VIS spectrum of Carthamus flower-)

  • 신인수
    • 대한가정학회지
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    • 제32권1호
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    • pp.229-238
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    • 1994
  • The purpose of this study was to investigate the objectification of coloring matter abstraction of the way to natural dye by cathamus flower. Watersoluble carthamin in the dyeing cathamus flower was removed for the fastness of dyeing and only insoluble carthamon was abstracted which came by solvent such as Sodium hydroxide(NaOH) Potassium hydroxide(KOH) Sodium carbonate(Na2CO3)and Potassi-um carbonate(K2CO3) Carthamon made abstract essence from a carthamus flower out of the pH6, pH7, pH9, pH11, solvent and by using a UV/VIS Spectra according to the change of pH. Silk dyes with solution abstract carthamon and it was treated by 5 kinds of mordant. The table of surface-colors was measured by the number of dyeing the color of silk dyed and by the kind of mordant which treated with and the dyeing was evaluated by measuring Color Fastness to Light and Washing.

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전통 색동이미지를 응용한 문화상품개발에 관한 연구 (A Study of the Development of Cultural Products that Utilize the Traditional Saekdong Image)

  • 이미석
    • 복식
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    • 제59권2호
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    • pp.101-110
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    • 2009
  • This is a study regarding the development of cultural products with applied traditional Saekdong-image. The objective of this study is to develop unique cultural products which combine traditional korean images with modern feel by utilizing traditional Saekdong-image. Saekdong has been an object of deep attachment and regarded as a tool for expressing korean images from ancient times to the present. Chosun dynasty shows a wonderful growth of fashion not only in dress but also in such accessories as patchwork wrapping-cloth and Saekdong, which imply a lot on formation or color arrangement. Approximately 24 pieces of cultural products that can be used in daily life were created using Saekdong, including traffic or credit card cases, name card cases, pouches, coin purses, bags, Vest, teapot wrapping-cloth, brooch. After design plans were made for each works, natural dyes were used to dye(dip dyeing) the fabrics(cotton, silk, linen) by theme. In addition, the increased quality of the products will be a competitive edge in the world market where products compete with no national bounds.

쪽과 괴화를 이용한 레이온 직물의 복합염색 (Rayon Fabric Dyeing with indigo and Japanese pagoda for Color mixture)

  • 배정숙;안선영;허만우
    • 한국염색가공학회:학술대회논문집
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    • 한국염색가공학회 2008년도 제39차 학술발표회
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    • pp.93-94
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    • 2008
  • The color mixture by using indigo and Japanese pagoda is worked on rayon, which is made of cellulose, to diversify colors of natural dyes. The process which is using indigo first and then Japanese pagoda can be allowed various possibilities of color combination than that of using Japanese pagoda first. And also the color mixture with the use of mordant which is using indigo first and then Japanese pagoda can be expected more effective to get diverse colors than that of using Japanese pagoda first.

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삽주 추출물을 이용한 견직물의 천연염색 (Dyeing of silk with natural dyes from Atractylodes japonica)

  • 김상률
    • 복식문화연구
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    • 제22권3호
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    • pp.361-370
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    • 2014
  • The fabric, 100% Silk, was dyed with Atractylodes japonica extract solution. The effects of concentration of extracts (colorant), temperature of dyeing, time of dyeing and pH of dye bath were studied. As the concentration of extracts increased, color strength (K/S value) increased progressively. The K/S values increased with raising temperature, time and proper conditions were $80^{\circ}C$ and 80 minutes. Maximum K/S value was obtained at pH 3. The K/S values of mordanted fabrics were increased with increasing mordant concentration up to specific values. Surface color of dyed and mordanted fabrics were yellowish. Light color fastness of fabric with mordanting was fairly good 3/4 rating. The mordanted silk fabrics showed excellent antibacterial activity. The silk fabric dyed with Atractylodes japonica extract showed a superior UV protective property.

천연염료에 관한 연구(12) -황벽 색소의 견섬유에 대한 염색성- (Studies on the Natural Dyes(12) -Dyeing Properties of Amur Cork Tree Colors for Silk-)

  • 조경래;강미정
    • 한국염색가공학회지
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    • 제12권4호
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    • pp.239-247
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    • 2000
  • The coloring matter was extracted from the heartwood of Amur cork tree by distilled water. Change of UV-Visible spectra of coloring matter solution by extraction condition and stability for irradiation were determined, and the effect of repeated dyeing with condition of dyebath and mordanting method on shade depth and lightfastness were also investigated. The results are as follows : 1) Absorbance of Amur cork tree extract increased with the lapse of extraction time. λmax of color solution extracted from Amur cork tree was found at 420, 333, and 262nm. 2) Absorbance of Amur cork tree extract decreased remarkably after 2hr irradiation. 3) The K/S of silk fabrics increased with the increase of dyeing temperature, time, amounts of Amur cork tree for extraction, and pH of color solution. 4) K/S of silk fabrics dyed by repeated dyeing method was affected by pH and concentration of color solution. 5) Lightfastness of silk twice dyed with Amur cork tree extract after pre-mordanted by 8%(o.w.f) chromium acetate was moderately improved.

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꽃을 이용한 천연염색 연구(II) -국화의 염색성 및 항균.소취성- (The Study of Natural Dyes on the Flowers(II) -The Dyeability and Antimicrobial.Deodorization Activity of Chrysanthemum boreale-)

  • 김병희;송화순
    • 한국염색가공학회지
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    • 제12권3호
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    • pp.199-206
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    • 2000
  • Silk fabric was dyed using methanol extract of Chrysanthemum boreale at $60^\circ{C}$ for 40min. The K/S value of the silk fabric was highest in the premordanting method, while the amount of absorbed mordant was largest in the Cu-mordanting. The surface colors of the dyed fabric highly depended upon mordants or mordanting methods. For all cases, the value of the dyed fabric was dark. The chroma was high by using the Cr-mordant and the color difference was distinct by using the Fe-mordant. Cu-mordanted silk showed highest fastness to light. Dyed silk fabrics by mordanting method showed good antimicrobial activity ad deodorization property.

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천연염료에 관한 연구(11) -코치닐 색소의 양모섬유 염색성- (Studies on the Natural Dyes(11) -Dyeing Properties of Cochineal Colors for Wool Fibers-)

  • 조경래
    • 한국염색가공학회지
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    • 제11권4호
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    • pp.39-49
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    • 1999
  • In order to study the properties of cochineal colors, uv-visible spectra of cochineal colors solution, dyeing properties on the wool in several dyeing conditions and thermodynamic parameters were investigated. UV-visible spectra of cochineal colors solution showed hypochromic effect with the lapse of irradiation time but bathochromic shift with decreasing acidity of solution and addition of metallic ions. The concentration of cochineal colors in wool fiber increased with the increase of dyeing temperature, time, and acidity of initial dyebath. The value of apparent diffusion coefficients and standard affinities of dyeing decreased with the increase of dyeing temperature. The standard heats of dyeing$(\Delta{H}^\circ)$ and variation of entropy$(\Delta{S}^\circ)$ increased with the increase of concentration of initial dyebath. The activation energy$(E_a)$ were calculated to be 1.399~2.595kcal/mol in condition of 6~1%(o.w.f) dyebath. Wool fabrics were dyed reddish blue by iron sulfate, copper sulfate, aluminum acetate and tannic acid, and red by tin chloride, respectively. Lightfastness of wool fabrics dyed by cochineal colors were increased by mordant treatment, especially copper sulfate and iron sulfate treatment.

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