• 한국의류학회지
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• 제35권2호
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• pp.218-229
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• 2011

Dyeing properties of cotton and ramie fabrics with pine needles colorants were studied by investigating the analysis of pine needles colorants, the effect of dyeing conditions (such as dye concentration, dyeing temperatures and times on dye uptakes), effect of mordants, and color change. The various colorfastness of dyed fabrics were evaluated for practical use; in addition, the antimicrobial ability, ultraviolet-cut ability, and deodorant ability were estimated. In the UV-Visible spectrum, the wavelength of the maximum absorption for pine needles extract was 285nm, and pine needles colorants produced a yellow color. From FT-IR and GC-MS results, it was assumed that chromophoric substance from pine needles extracts were mixed with flavonol tannin and flavanol tannin. An increased dyeing concentration resulted in a larger dye uptake and a Freundlich absorption isotherm was obtained. A larger dye uptake occurred as the dyeing time and temperature increased. Post-mordanting was more effective than pre-mordanting and the dye uptake of fabrics improved by mordanting. The colorfastness of dyed fabrics showed a low rating; however, colorfastness to washing and dry cleaning of cotton fabrics mordanted with N.Cu, and friction fastness of ramie fabric mordanted with Cu improved. The dyed fabrics showed very good antimicrobial abilities of 99.9%. In addition, the ultraviolet-cut ability and deodorant ability improved in fabrics dyed with pine needles extracts.

• 한국의류학회지
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• 제21권1호
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• pp.3-9
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• 1997

From the standpoint of end-use and practical performances, attention was focused preparing cotton fabrics which posses good dyeability as well as water repellency. The results are summarized as follows, as far as findings obtained from this study is concerned. The fluoro chemical (FC) water repellent finished cotton fabrics exhibited good dyeing properties and colorfastness to washing. Furthermore, the DMDHEU durable-press and FC water repellent finishes in a single pad bath resulted in excellent durable press performance and good water repellency.

• 한국의상디자인학회지
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• 제10권3호
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• pp.173-180
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• 2008

Cotton, wool, cotton/wool blended (80:20) and tencel fabrics were treated with low temperature oxygen plasma, enzymes (cellulase or protease), or oxygen plasma-enzyme and they were examined for dyeing and handling properties for environment friendly finishing. The appropriate conditions for cellulase treatment were enzyme concentration of 3g/l, pH of 5, and $60^{\circ}C$ for one hour, and for protease treatment were enzyme concentration of 4g/l, pH of 8, and $60^{\circ}C$ for one hour. The equilibrium uptake of a direct dye on cotton changed with plasma treatment and plasma-cellulase treatment, and the rate of dyeing slightly decreased. When wool was dyed with acid dye, the equilibrium dye uptake did not change with plasma, protease treatment nor plasma-protease treatment, however, the rate of dyeing had increased with plasma-protease treatment. From these results, it is assumed that plasma attacks the surface of the fiber, and enzyme mainly affects the inner part of the fiber. Plasma treatment did not affect mechanical properties related to the handling of fabrics. The handling test showed increased extension at maxmum load(EM), tensile energy(WT) with decreased tensile resilience (RT), and the fabrics became softer but resilience decreased slightly with enzyme treatment. The bending recidity(B), hysteresis of bending moment(2HB), and hysteresis of shear force at five degrees(2HG5) decreased, however, shear stiffness(G) increased. I knew the plasma pre-treatment made fabrics softer with lower koshi(stiffness). The handling of plasma pre-treated fabrics was better than that of enzyme-treated fabrics. When we pre-treated fabrics, the handling test showed decreased coefficient of friction(MIU), geometrical roughness(SMD), while the surface of fabrics became smoother and numeri increased. Even though compression resilience(RC) increased, fukurami(bulky property) and compressive elasticity, decreased due to the linearity of compression-thickness curve(LC) and compression energy(WC).

• 한국의류산업학회지
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• 제13권6호
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• pp.972-982
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• 2011

The purpose of this study is to improve the method of color developing with alkali solution as a promotor of color developing for feasible use. Cotton fabric was dyed with persimmon extract ranged with 0~3% alkali component with 5 types of strong to mild alkali solution. Heat treatment for color developing was applied to fabric dyed with persimmon extract and alkali mixing solution. Tests were carried out to analyze the change of surface color, ${\Delta},Ea^*b^*$, and water repellent of the dyed cotton fabric. The alkali mixing sample showed higher ${\Delta},Ea^*b^*$ value than control one without alkali mixing on the base of dyed fabric due to high color developing by alkali in the initial step of dyeing process. As alkali concentration increased, deeper dark color appeared on the fabric. The fabric color was changed to more dark in the application of sodium hydroxide, sodium carbonate, potassium carbonate in the initial step of dyeing process but color was not changed by increased heating time. However, the fabric showed a slight dark color with sodium acetate and more color change than that of the fabric dyed with persimmon extract without alkali. Therefore, sodium acetate seemed to a suitable promotor for color developing in persimmon extract dyeing. Property of water repellent was showed after color developing by heating with low concentration of alkali treatment.

• 한국의류학회지
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• 제32권7호
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• pp.1095-1103
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• 2008

The effects of resin finish and dyeabilities of four kinds of Iyocell fabrics that were manufactured by four kinds of pulps were investigated. The dyeabilities of Iyocell fabrics were similar, but differed from cotton fabric. In early stage of 30 minutes, cotton fabric was shown higher dye exhaustion ratio than Iyocell fabrics, however after then cotton fabric did not increase dye exhaustion, Iyocell fabrics increased continuously. At last, the dye exhaustion ratio of Iyocell fabrics were about 75% and that of cotton fabric was 65%. Two kinds of experimental procedures were applied for Iyocell fabrics. One was what the fabrics were treated with resins and washed with cellulase, and then dyed with reactive dyes. The other procedure was the fabrics were dyed with reactive dyes, and then applied the resin treatments and cellulase washing. After fibrillation and washing the undyed Iyocell fabric and the Iyocell fabric that was dyed with C.I.Reactive Red 120, their weight loss ratios were 3.5% and 2.8%, respectively. Dyeing with reactive dyes caused the crosslinking between cellulose and dyes and the crosslinking decreased fibrillation. The weight loss by enzyme washing of Iyocell fabrics decreased by the glyoxal and melamine resin treatments. The reduction of weight loss can be caused by fibrillation decrease. Dyeing and resin treating can be showed the synergic effect on the reduction of fibrillation. The effect of glyoxal resin on the reduction of fibrillation was a little better than that of melamine resin.

• 수산해양교육연구
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• 제22권4호
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• pp.490-500
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• 2010

This study, at first we extracted natural dyes from seaweed(Sargassum thunbergii, Hizikia fusiforme, Sargassum horneri). Then. we dyed cotton, wool, and silk with the extracted dyes. This study purposes to find the best one for dyeing with seaweed in order to develop a more efficient method of dyeing with seaweed and investigates the colorfastness to washing, light, sun protection factor, antibiotic activities, deodorization after mordanting treatment. of seaweed. The mission of general agricultural education is to prepare and support individuals for careers, build awareness, and develop leadership for the food, fiber, and natural resource systems. In response to the changes of the recognition and attitude toward agriculture, agricultural education also should be developed and adapted to the circumstances. And The Researcher took an observation on color change, color fastness to washing and color fastness to light after mordanting treatment. And the following results have been obtained. 1) Dyed cotton, wool, and silk fabrics with the extract of seaweed are generally brown. 2) Wool. silk, and cotton, in this order, are of good dyeability; Wool fabrics have the highest dyeability and cotton fabrics have the lowest. 3) Colorfastness to washing, light, sun protection factor, antimicrobial activity acessment, deodorization are all high. 4) The seaweed-dyed fabrics were shown to have much higher sun protection factor than the non-dyed fabrics, and the seaweed-dyed fabrics with mortanting treatment showed the following result; ranged from anged from from 93.1% to grade 99.2%. 5) The seaweed-dyed fabrics were shown to have much higher antibiosis than the non-dyed fabrics, and the seaweed-dyed fabrics with mortanting treatment showed the following result; ranged from 91.3% to grade 99.9%. 6) The seaweed-dyed fabrics were shown to have much higher deodorization than the non-dyed fabrics, and the seaweed-dyed fabrics with mortanting treatment showed 99.9%.

• 염색가공
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• 제1권
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• pp.19-25
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• 2006

• 한국섬유공학회:학술대회논문집
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• 한국섬유공학회 1995년도 추계 학술발표회
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• pp.3-3
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• 1995

• 한국염색가공학회지
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• 제12권5호
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• pp.323-329
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• 2000

• 한국염색가공학회지
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• 제15권1호
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• pp.30-38
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• 2003

Research to dyeing properties of Ulmi cortex extract, silk and cotton fabrics were dyed and mordanted. Dyes were extracted from distilled water according to different pH values. The dyeability of Ulmi cortex extract were evaluated by conditions of dyeing temperature, dyeing time, dyeing pH, mordanting temperature, mordanting time, mordanting concentration and color fastness, etc. IR spectrum possessed absorption band of -OH at $3400cm^{-1},\;C-H\;at\; 2940cm^{ -1},\;aromatic\;C=C\;at\;1628cm^{-1},\;1518cm^{-1},\;C-O\;at\; 1107cm^{ -1},\;1043cm^{-1}$. And the $\labmda$max of extract appeared at 220nm and 280nm, so the substance of Ulmi cortex extract were catechin and tannin. Surface color of dyed fabrics were reddish yellow~yellow~greenish yellow. From the color fastness test, the fabrics dyed with PH 7 extract were excellent in irradiation and washing. Mordanting improved the color fastness and K/S value of dyed fabrics.