• 한국염색가공학회지
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• 제14권3호
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• pp.34-43
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• 2002

Abstract-Many studies have been carried out to improve the dyeability of anionic dyes onto cellulosic fibers. Modification of control using cationic compounds has been most widely used. In this study, an effort was made to cationize cotton fabrics using cellulose-reactive allylamine polymer, namely triazinyl N,N'-dimethyl-N,N'-diallyl ammonium chloride in the previous work. The results showed that the dye-uptake of treated cotton fabrics with acid dyes and reactive dyes markedly increased in the various dyeing conditions. In addition, the dyeing rate of cationized cotton was also faster than that of untreated counterpart. Furthermore, the antimicrobial property was also investigated to determine the effects of cationization.

• 한국의류학회지
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• 제21권3호
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• pp.600-606
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• 1997

The dyeing with loess has been studied. Two kinds of cotton fabrics having different thickness and density were dyed in loess paste bath. The color differences of the fabrics which were dyed repeatedly.five times were not significant. The dyeing of cotton fabrics with loess was not exactly reproducible, but dyeability of the cotton fabrics of high density was better than that of low density. Loess on the dye6 fabrics was physically jammed between the fibers in the form of the fine particles. The cotton fabrics dyed with loess have good light fastness, but their laundering fastness and abrasion fastness were not good. An aftertreatment was carried out by using the extracted solution from acorn or persimon, and FeSO4 lot improving fastness. When the dyed fabrics was after-treated with FeSO4, the laundering fastness and wet abrasion fastness were improved extremely.

• 한국염색가공학회지
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• 제35권1호
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• pp.1-7
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• 2023

In this study, the influence of pre-treatment(bleaching, mercerization by liquid ammonia and caustic soda) on cotton fabrics were investigated on dyeing Rubia cordifolia extracts. Aluminium Sulfate, Iron(Ⅱ) Sulfate Heptahydrate, Copper(Ⅱ) Sulfate Pentahydrate, Tin(Ⅱ) Sulfate, Manganese(Ⅱ) Chloride Tetrahydrate were used as mordanting agents. K/S value and washing fastnesses of the dyed cotton fabrics pretreated under different conditions were investigated. The K/S values were increased in the order of bleaching, liquid ammonia and mercerization pre-treatment. It was found that the pre-treatment conditions did not significantly affect the color change. The colorfastness to washing of most of all dyed fabrics were over grade 4 regardless of pre-treatment condition.

• 한국의류학회지
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• 제27권8호
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• pp.883-891
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• 2003

In this study, a change of hand of fabrics dyed with persimmon juice was measured using Kawabata Evaluation System. Using various cotton fabrics, linen fabric and silk fabric used frequently for persimmon juice dyeing, we examined the changes of physical properties and hand according to persimmon juice dyeing and washing. The dynamic characteristics of hand were measured tensile, shear, bending, compression, surface properties, thickness and weight. Linearity of load-extention and tensile resilience were increased in all kinds of fabrics after dyeing. Tensile energy decreased in cotton fabric 2(gauze), cotton fabric 3(muslin) and linen fabric. Shear stiffness and hysteresis of shear increased in most of fabrics. Bending rigidity of the bending property and hysteresis of bending, linearity of compression of the compression property, compression energy and compression resilience increased in all kinds of fabrics after dyeing. Thickness and weight increased much in all kinds of fabrics after dyeing. In the primary hand value, stiffness and anti-drape stiffness increased in all kind of fabrics after dyeing. The fullness and softness, crispness, scrooping feeling and flexibility with soft feeling decreased. As the stiffness after persimmons dyeing increased, it was suitable for clothes material of summer.

• 한국염색가공학회지
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• 제28권3호
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• pp.175-182
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• 2016

To investigate dyeing behaviors in accordance with dye structure in cold pad batch dyeing of cotton knit, monochlorotriazine-vinylsulfone bifunctional dyes and monofluorotriazine-vinylsulfone bifunctional dyes were prepared. The spectral property and solubility of the dyes were tested and compared with the imported dyes. In addition, exhaustion behaviors of individual and mixed dye solutions were measured to examine the influence of dye structure on dyeing behavior in cold pad batch dyeing. The substantivity, fixation, migration index and half dyeing time were also calculated for further analysis of dyeing behavior of the prepared dyes. As a result, both dyes exhibited the superior solubilities and satisfactory light absorption properties. Also, monofluorotriazine-vinylsulfone bifunctional dyes showed moderate sensitivity to alkalinity and proper kinetic index values compared with the monochlorotriazine-vinylsulfone bifunctional dyes and the imported dyes. The results indicated monofluorotriazine-vinylsulfone bifunctional structure of the dye is suitable for cold pad batch dyeing.

• 한국지역사회생활과학회지
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• 제16권1호
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• pp.65-72
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• 2005

To increase dyeability of cotton fabric to the chestnut shell dyeing, we had several dyeing experiments with the experimental fabrics which was pre-treated by soybean, NaOH, KOH. Three kinds of experimental cotton fabrics were used and chestnut shell dyebath was made for the experiment. Munsell's color HV/C and color differences ΔE of dyeing fabrics were compared between pre-treatment and none pre-treatment dyeing fabrics. The main results were as follows ; Color differences of dyeing fabrics pre-treated with soybean, NaOH, KOH were higher than those of none pre-treated dyeing fabrics. In case of pre-treatment with soybean, the concentration of the soybean bath affected the color differences but not affected in case of pre-treatment with NaOH & KOH. Munsell's color of pre-treatment fabrics with soybean, NaOH, KOH were same with the none pre-treatment fabrics. Colorfastness of the pre-treated fabrics were same degree, but only in case of soybean pre-treated fabrics were low in fastness of washing(change) & perspiration(acidic change).

• 한국생활과학회지
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• 제19권4호
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• pp.699-707
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• 2010

Catechu is widely used as in natural dyeing as well as in various medicines and tannage. This study investigated the dyeing properties and functionality of Catechu through a series of dyeing experiments using cotton fabric. It was shown that the absorbance of Catechu solution has two peaks at 220nm and 280nm. Thus, it can be concluded that the color constituent of Catechu is a catechol tannin and color tone is YR. The dyeability of Catechu increases as the concentration of the dye is increased. Its variation was shown to be similar to the isothermal absorption curve of the Freundlich. As dyeing time was increases, the dyeability did not change significantly after the 30 minute mark was passed. At high temperatures the dyeability was shown to increase. As the dyeing temperature was increased the color of dyeing fabrics changes from Y and YR to R. Experiments with pre-mordanting method showed that various colors can be obtained using Catechu. Cotton is effective in using K, Cu, Fe mordants, and the dyeability was shown to be improved with low pH. 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 causing by 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%.

• 한국작물학회지
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• 제58권2호
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• pp.113-118
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• 2013

본 연구는 자색 옥수수 부산물인 옥수수 줄기와 잎을 이용하여 염액을 추출하여 여러 가지 염색 조건에서 염색정도를 관찰하고 자색옥수수 부산물의 염료로서의 가능성을 타진하여 이용성 증진을 위한 기초자료를 제공하고자 실시하였다. 1. 자색 옥수수 추출시 pH에 따른 흡광도의 변화가 없으므로 자색 옥수수 색소 함량을 측정하기 위하여 UV 흡광도를 측정할 때 520~560 nm를 이용하는 것이 효율적일 것으로 생각된다. 2. 자색 옥수수 잎 추출물로 염색한 silk와 cotton은 pH가 높아질수록 직물의 밝기와 적색도가 낮아졌다. 줄기 추출물의 경우에는 뚜렷한 경향을 나타내지는 않았지만 pH 값이 높아질수록 밝기와 적색도가 높아지는 경향을 나타내었다. 3. 농도에 따른 직물의 염색 정도는 silk와 cotton 모두 농도가 높아질수록 밝기는 낮아지고 적색도는 증가하는 경향을 나타내었다. 4. Silk와 cotton은 일반적으로 염색시간이 길어질수록 명도가 증가하고, 적색도는 감소하는 경향을 나타내었다.

• 한국의류학회지
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• 제30권2호
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• pp.275-285
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• 2006

The purpose of this study was to examine the change of dyeing ability by K/S values, when dyed in different twisting processes and by one bath system and two bath system, to find possible ways of minimizing the color difference between cotton and polyester in composite yarn. The two types of composite yarn, which had one setting process(CP1) and two setting processes(CP2) were dyed with reactive/disperse dyes in both one bath dyeing system and two bath system. The dyeing ability according to the two different twisting processes was measured, and the values of the CP1 were higher compare to the values of CP2 in both one and two bath dyeing systems. This is because CP1 applied only one setting could shrink dyeing process at 130$^{circ}C$. This shrinkage increased the number of twists in the unit length and increased the yarn density, and this is the reason that the K/S values were measured higher than those of CP2. In wet shrinkage test, in opposition to CP2 only had 0.76$\%$ of the shrinkage rate, CP1 had 3.00$\%$ of the shrinkage rate. Also, the dyeing ability according to the two different dyeing methods was measured, and the values of CP1 and CP2 were both higher when dyed in two bath system. On the other hand, the color differences between cotton and polyester in composite yarns, were smaller for CP2 than that for CP1 and were also smaller in two bath dyeing system than in one bath dyeing system. Therefore, the ways of minimizing color difference between cotton and polyester in composite yarn are to apply enough setting in order to minimize shrinkage in dyeing process and to choose two bath dyeing system.

• 한국염색가공학회:학술대회논문집
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• 한국염색가공학회 2010년도 제3회 국제학회
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• pp.176-176
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• 2010