• 제목/요약/키워드: Wool fiber

검색결과 226건 처리시간 0.024초

호도 외피를 이용한 천연염색에 관한 연구(I) (A Study on Natural Dyeing with Walnut Hull Extracts)

  • 송경헌;백천의
    • 한국생활과학회지
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    • 제11권4호
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    • pp.391-400
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    • 2002
  • This study was intended to research the dyeing with natural walnut hull extracts over cotton, flax, rayon, wool, nylon and silk. We studied the dyeing conditions and mordant effect, and observed dyeability. The result are as follows: 1. In the dyeability with natural walnut hull extracts, protein and polyamide fiber has more dye uptake rather than cellulose fiber. 2. The optimum condition in the dyeing with natural walnut hull extracts was at $90^{\circ}C$, 12%(o.w.b) concentration in 90 mins. 3. In the case of the dyeability by repeated dyeing number, the dyeability of good dyeability fiber is improved in the first or second dyeing, but that of bad dyebality fiber is improved when it is dyed more repeatedly. 4. In the dyeablity treated with mordants, Al, Sn, and Mg don't have any differences, but Cu and Fe have some difference. The color of Fe mordant is green and the color of Cu mordant is blue. 5. In the case of the color fastness with mordant treatment, nylon is better than silk and wool in color fastness to washing but silk is better than nylon and wool in color fastness to light.

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아선약의 염색성과 기능성(제2보) -단백질섬유에 대한 염색성- (Dyeability and Functionality of Catechu(Part II) -Dyeing Properties of Protein Fiber with Catechu-)

  • 남기연;이정순
    • 한국생활과학회지
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    • 제19권4호
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    • pp.709-717
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    • 2010
  • This study investigated the properties and functions of wool and silk dyed with Catechu by examining the effects of dying conditions such as dye concentration, dying temperature, dyeing time, pH level and pre-mordants. These conditions were examined in relation to dye uptake and color changes, washing fastness, light fastness, ultraviolet-cut ability and antimicrobial ability of the dyed fabrics. Catechu showed good affinity to silk fiber. Langmuir adsorption isotherm was obtained, and so it was considered that ionic bondings are formed between Catechu and protein fiber. As the dyeing time and temperature is increased, the dyeability of both silk and wool fabrics also increases. At high temperatures the color of dyed fabrics changes from Y and YR to R. Wool is effective in using Al, Cu, Fe mordant, while silk is effective only in using only Cu mordants. The dyeability was shown to be improved at low pH levels. Additionally, both washing fastness and light fastness were shown to be low. However, the fabric color gradually changed to red was due to mailard reaction of catechol tannin causingby repeated washing and sunlight. The ultraviolet-cut ability was improved for cotton fabric dyed with Catechu. Also, dyed fabric with Catechu showed very good antimicrobial abilities at 99.9%.

위편성물의 혼용률 및 편환장이 주관적 질감과 선호도에 미치는 영향 -구조방정식 이용- (Effects of Fiber Contents and Loop Length of Weft Knit on Subjective Texture and Preference-Using SEM-)

  • 노의경;유효선
    • 한국의류학회지
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    • 제31권7호
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    • pp.1128-1138
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    • 2007
  • The purpose of this study is to develop the relationship model among subjective texture and preference of weft knit according to fiber contents of wool/rayon and loop length by integrating previous research work. SPSS and SEM method using AMOS program were used to analyze data which used to correlation matrix to be standardized. The texture of weft knit were classified into 4 categories: irregularity, flexibility, bulkiness, extensibility. The fiber contents of wool/rayon had effect positively on irregularity, bulkiness and extensibility and that had little effect on preference. The loop length had effect positively on irregularity, flexibility and extensibility and that had effect negatively on preference. This measurement model will be input for testing causal research model that can explain how fiber contents of wool/rayon and loop length of weft knit influence on subjective texture.

GaN분말을 이용한 $Ga_{2}O_{3}$fiber-wool의 합성과 특성 (Synthesis of $\beta$-$Ga_{2}O_{3}$Fiber-Wool from GaN Powder and its Characteristics)

  • 조성룡;여운용;이종원;박인용;김선태
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2001년도 하계학술대회 논문집
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    • pp.848-850
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    • 2001
  • In this work, we investigated on the white-colored ribbon fiber synthesized from GaN powder. We convinced the formation of monoclinic phase $\beta$-Ga$_2$O$_3$from the X-ray diffraction pattern on ribbon fiber. The 10 K PL spectrum consisted with the strong emission band caused by self-activated optical center at 3.464 eV with the full-width at half maximum of 48 meV and the impurity related emission bands. Through this work, the optical properties and the electrical conductivity of $\beta$-Ga$_2$O$_3$, it will be useful for the fabrication of optoelctronic devices operating in visible spectrum region.

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Poly(vinyl alcohol)/Milk Casein Blend Fiber의 제조와 물성 (A Study on the Properties of Poly(vinyl alcohol)/Milk Casein Blend Fibers)

  • Kim, Kyung-Sook;Jeong, Young-Jin;Kim, Han-Do
    • 한국섬유공학회:학술대회논문집
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    • 한국섬유공학회 2003년도 가을 학술발표회 논문집
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    • pp.27-30
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    • 2003
  • Casein, a milk protein is used in food, paper, leather and textile industries. The milk casein fiber was developed 1935 first. The strong point of milk casein fiber, the contraction is fewer the wool when washing and damage of harmful insect is smaller than wool.[1] But proteins are the major category of natural polymers that are difficult to be processed into fibrous forms. This is because of their complex macromolecular and three-dimensional structures as well as strong inter- and / or intra molecular forces.[2] (omitted)

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