• Title/Summary/Keyword: fastness property

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Dyeing Properties and Functionality of Hot-water Extract from Juniperus chinensis Heartwood (향나무 심재 열수추출물의 염색성과 기능성)

  • Nam, Ki Yeon;Lee, Jung Soon
    • Textile Coloration and Finishing
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    • v.25 no.3
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    • pp.181-193
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    • 2013
  • The purpose of this study is to investigate dyeing properties and functionality of cotton and silk fabrics dyed with hot-water extract from Juniperus chinensis heartwood. Water-soluble dye of Juniperus chinensis heartwood extracted with distilled water was expressed YR color series. Dye uptake of cotton continued to increase according to the increase of the dye concentration. Its variation trends were shown to be similar to the isothermal absorption curve of the Freundlich. Dye uptake of silk was better than cotton, increased depending on increasing concentration of the dye, dyeing time and temperature. Its variation trends were shown to be similar to the isothermal absorption curve of the Langmuir. As the pH increased, the dye uptake of fabrics reduced and showed increased on red tinge. Colors of the dyed fabrics were various, depending on dye concentration and the mordant type and mordant concentration. Washing fastness, light fastness and perspiration fastness were not good. However, rubbing and dry cleaning fastness showed relatively good grade. Dyed fabrics of ultraviolet-cut ability and deodorant ability were improved. And dyed fabrics showed antimicrobial abilities of 99.9% against Staphylococcus aureus.

Finishing of Interior Fabric Using Soluble Micro-fiber and low melting Yarn (용출형 극세사와 저온 융착사를 이용한 인테리어 직물의 가공)

  • Ahn, Young-Moo
    • Journal of Fashion Business
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    • v.13 no.2
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    • pp.78-86
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    • 2009
  • When scouring and contraction finishing at $90^{\circ}C$ using Relaxer or Rotary Washer contraction and weight loss ratio in warp and weft directions were excellent. Also surface state of fabric after drying or sanding treatment was excellent without crease. Low melting polyester fabric showed a complete melting bond by heat setting(P/S) at above $160^{\circ}C$. The alkali hydrolysis reaction of polyester showed the breakpoint in the weight loss behavior test, polyester yarn showed a breakpoint ranging from 25% to 28%. This is due to the difference of the hydrolysis rate between regular polyester and soluble polyester. Initially the soluble polyester was eluted and micro-fibrillized 5 times faster than a regular polyester. At a later time, a regular polyester was reduced weight to impart a proper flexibility and drape property to the fabric. As a result of surface sanding finishing, the surface of interior fabric showed a surface state most stabilized when using Mesh No. 220 in mono 0.2d after elution finishing. When the rotation direction of sanding roller was pro-, pro-, pro-, and retro-direction, a directional effect of tuft was not shown, a writing effect as suede was exhibited and a surface state was even. Sublimation fastness was 3-4 class for polyester and 2-4 class for nylon. Light fastness 3-4 class after lapse of 100 hours and 2-4 class after lapse of 160 hours. Abrasion fastness was 3-4 class on wet and 4-5 class on dry Laundry fastness was 2-4 class. As such, the abrasion fastness is slightly reduced upon wetting and the use thereof for interior is excellent, whereas laundry fastness is slightly lowered.

A Study for Natural Dyeing and Functional Property of Paper and Fabrics with Green Laver Extracts (파래 추출액을 이용한 지사용 원지와 직물의 천연 염색성 및 기능성에 관한 연구)

  • Kim, Ki Hoon;Kang, Sul Sang;Lim, Hyun A
    • Korean Journal of Human Ecology
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    • v.23 no.5
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    • pp.861-871
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    • 2014
  • This study explored applicability of natural dyeing and functional property of base paper using paper yarn and fabrics with green laver extracts. As a result of measuring dyeability and functional property of cotton, silk, and a blended fabric of cotton/mulberry, $60^{\circ}C$ and 40 minutes was the optimal dyeing condition for the cotton fabric under an alkali condition; $50^{\circ}C$ and 60 minutes for the silk fabric; $60^{\circ}C$ and 50 minutes for the blended fabric of cotton/mulberry. As a result of measuring the color fastness after dyeing cotton, silk and the blended fabric of cotton/mulberry, fastness to washing, water, rubbing, dry cleaning and light was superior. In terms of functional property, the silk and the blended fabric of cotton/mulberry were superior concerning antimicrobial properties of the fabric dyed with green laver extracts while the cotton fabric showed 90% or over. Regarding deodorization, the blended fabric of cotton/mulberry was the most superior. All the fabrics were harmless to the human body as they had heavy metal content below the standard. Considering the research results comprehensively, the green laver extracts possibly has enough applicability and functional property as a natural dyes. Moreover, it has potential to be developed new eco-friendly fashion materials.

Dyeing Property of Acrylic/Cotton Fabric Blends (아크릴/면 혼방직물의 염색성)

  • Lee, Bong kyu;Park, Yoon Cheol;Kim, Jin Woo
    • Textile Coloration and Finishing
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    • v.7 no.2
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    • pp.17-23
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    • 1995
  • In order to study the dyeing property of acrylic and cotton blends with cationic and reactive dyes, staining on cotton of cationic dyes, stability of cationic dyes, and fastness properties in various conditions were investigated. The restlts obatined from this study are summarized as follows: 1. Cationic oxazine dyes showed good stability in comparison with cationic azo dyes. 2. Staining of cationic dyes on cotton was gradually increased with pH and neutral salt concentration, but decreased with dyeing time and dyeing temperture.

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Dyeing of Cotton Fabrics with Persimmon Extract Powder - Focused on Dyeability and Mechanical Properties Depending on Color Characteristics - (감 추출분말을 이용한 면직물의 염색 - 색채특성에 따른 염색성과 역학적 성질을 중심으로 -)

  • Lee, An Rye;Yi, Eunjou
    • Korean Journal of Human Ecology
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    • v.22 no.5
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    • pp.461-476
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    • 2013
  • This study aims to provide practical information of both color and hands of cotton fabrics dyed with persimmon dye powder for natural dyeing fashion industries by investigating dyeing behavior and color gamut, by testing mechanical properties depending on color characteristics, and finally by evaluating dyeing fastness. As results, the persimmon dye powder obtained by extracting the fruits to final solid powder was found as containing tannin and it partially coated between and on fibers similarly to traditionally dyed one. The K/S values of non-mordanted fabric and two differently mordanted ones with Fe and Cu seemed to reach their equilibrium from 800, 800, and 600% (owf), respectively. Yellow-red was the only one hue shown while tones were various as pale (p), light grayish (ltg), soft (sf), dull (d), grayish (g), and dark grayish (dkg). In mechanical properties, the dyed fabrics with p and ltg tended to be less altered than undyed ones whereas d and d kg by higher bath concentrations could be applied to boxy silhouette owing to their increased stiffness and less stretchability. Although fastness to dry cleaning and stain was good, color change by washing and rubbing needed to be improved.

Dyeing Properties of Sulfur Dye Using Nylon High Density Knitting Fabrics (황화염료를 이용한 고밀도 나일론 편성물의 염색성)

  • Chung, Myung-Hee;Cho, Ho-Hun
    • Journal of the Korea Fashion and Costume Design Association
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    • v.16 no.1
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    • pp.117-123
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    • 2014
  • This paper examined dyeing using sulfur dye with nylon and the characteristics of high gauge knitting for generating high functionality including light weight, wind resistance and elasticity using fine nylon threads. Yarn tension, stitch field and knitting speed of high and fine gauge knitting were measured. The influence of reducing agents on sulfur dye, optimum dyeing conditions and fastness features in nylon dyeing were analyzed. The analysis results are presented below. When nylon (Hyoseong, 40d/34f) and spandex (Hyoseong, 20d) for use as hosiery yarn were used to knit high gauge and flat weave, 44 gauge, the effective knitting conditions were a stitch field over 8.2cm in 1 course length, yarn tension of less than 5g and knitting speed below 18rpm. Nylon dyeing using sulfur dye showed effective results when a rongalite reducing agent was used at more than 10% o.w.f. and dyeing was maintained at $98^{\circ}C$ for 30 minutes. For dyeing nylon and spandex composite using sulfur dye, color fastness in washing, water, daylight and friction were higher than Class 4 or 5, which indicated a superior property. The analysis results verified that the existing problems in nylon dyeing could be solved by using sulfur dyes that don't use heavy metals due to superior fastness and therefore quality, high gauge nylon knit products could be produced.

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Dyeing Properties of Cotton and Wool Fabrics with Betel Palm Tree (빈랑에 의한 면, 모직물의 염색성)

  • 배정숙
    • Journal of the Korean Home Economics Association
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    • v.42 no.7
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    • pp.63-72
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    • 2004
  • This study discussed the dyeing of wool and cotton fabrics with Betel Palm Tree White woolen fabrics and cotton fabrics purchased from HATH (Korea Apparel Testing & Research Institute) were used as experimental fabrics. Using dyeing powder extracted from dyeing material, various temperatures, dyeing times, and pH were used in the dyeing process. Al, Cr, Fe, Cu, and Sn were used as mordant and the absorption was compared with different mordanting methods. The optimum condition for pre-mordanting dyeing was dye concentration of 25% (o.w.f) and mordant concentration of 0.5$^{\circ}$∼1%. Woolen fabric showed an increase of absorption and the maximum absorption was achieved at weak acidity. According to the mordanting methods, woolen fabrics and cotton fabrics were treated with various mordanting agents, a mordant rate of 1:100, at 60$^{\circ}C$, for 30 minutes and dyed with a dyeing material concentration of 25% (o.w.f), at a rate of 1:100, at 60$^{\circ}C$ for 60 minutes. The best dyeing effect w3s achieved at the temperature of 60$^{\circ}C$ for cotton and 80$^{\circ}C$ for wool fabrics. The light fastness of cotton and wool fabrics was low and particularly the fastness to perspiration was decreased with Fe mordanting. I concluded that pre-mordanting method was better than post-mordanting method for cotton and woolen fabrics.

Dyeability and Functionality of Synthetic Fabrics treated with Persimmon Juice (감즙에 의한 합성섬유의 염색성과 기능성)

  • Huh, Man-Woo;Bae, Jung-Sook
    • Textile Coloration and Finishing
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    • v.26 no.2
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    • pp.131-142
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    • 2014
  • This paper was focused on investigating synthetic fabrics treated with persimmon juice by padding mangle repeatedly. The merit of dyeing by pad-dry method was easier color reproduction than dyeing by immersion method. With increasing number of padding, the dyed nylon fabrics showed deeper yellow-red colors, but dyed polyester fabrics had no uniform tendency. The dyed synthetic fabrics had a 3rd grade of ligtht, 4~5th grade of perspiration fastness, 5th grade of stain washing fastness, and 3~5th grade of rubbing fastness. As the number of padding and exposed time to sunlight or UV light increase, the value of K/S and ${\Delta}E$ increased and the colors become much deeper gradually. The color development had completed about 70 hours exposure to UV light. As the padding time of dyeing with persimmon juice increased, stiffness and water repellent property were enhanced, respectively. Also, the dyed synthetic fabrics had good antibacterial activity and deodorization.

A Study on the Dyeing of Polyester Fabric by Microwave Heating(I) (Microwave 가열에 의한 Polyester직물의 염색에 관한 연구(I))

  • 서수정;임수경;김삼수
    • Textile Coloration and Finishing
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    • v.10 no.4
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    • pp.7-14
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    • 1998
  • Microwaves are high frequency radiation capable of generating very rapid, uniform and efficient heating of textile material. Microwave heated dyeing of polyester fabric was tried with different solvent systems, irradiation time and dye concentration. Microwave fixation methods were used with 100% water,30% urea, EG and DMF, respectively, pad-baths in which the padded fabrics were exposed over a heated or boiling water bath to maintain sufficient moisture content during irradiation. In order to ascertain the relation between the dyeing property of polyester fabric and the microwave irradiation condition caused by microwave heating, the K/S values and fastness properties of dyed fabrics such as light, washing and sublimation fastness were measured.

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Functional Dyeing and Finishing Using Catechins Extracted from Green Tea -Dyeing Optimization and Fastness- (녹차추출 카테킨을 활용한 기능성 염색가공 -염색조건 최적화 및 견뢰도 분석-)

  • Son, Song-I;Jang, Kyung-Jin;Kim, Tae-Kyeong;Jeong, Jong-Suc;Choi, Young-Hee
    • Fashion & Textile Research Journal
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    • v.11 no.2
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    • pp.344-349
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    • 2009
  • Optimum dyeing conditions of green tea extracts were investigated toward nylon, cotton, rayon, and tencel fabrics. Affinity of green tea extracts was exhibited much higher onto nylon fabric than the other cellulosics. As for nylon, the adsorption was increased with the increase of dyeing temperature and optimum dyeing pH was around 4~6. Buildup property of green tea extract was good showing a linear relationship between concentration of the extracts and color strength of dyed fabrics within experimental range. Color fastnesses were good to excellent in general except to light.