• 한국염색가공학회지
• /
• 제22권4호
• /
• pp.314-324
• /
• 2010

The purpose of this study is to obtain the dyed-fabrics of the elaborate patterns using the natural dye powders extracted from Galla Rhois, Sophorae Flos Immaturus, Clove, Sappan Wood, Madder, Log Wood and Japanese Green Alder. Specific informations on the separation and powder-making of each colorant were disclosed. Appropriate printing paste preparation and printing conditions including the viscosity and mordant concentration in the printing paste were investigated. The dyeability and colorfastness of the screen-printed silk fabrics with the colorant powders were discussed in terms of practical applicability. The deodorization and antimicrobial activities of the silk fabrics screen-printed with natural dyes were also assessed.

• 한국의류산업학회지
• /
• 제11권4호
• /
• pp.667-671
• /
• 2009

The use possibility as a dyestuff of Scutellaria baicalensis was investigated. The optimum conditions were evaluated when silk fabrics were dyed by Scutellaria baicalensis extract. The colorants of Scutellaria baicalensis were extracted better in water than methanol. The optical dyeing concentration was 80%(v/v), dyeing temperature was $80^{\circ}C$, dyeing time was 60minites, dyeing repetition was 2 turns. A Post-mordant method showed higher K/S value than premordant one, especially post-Fe appeared the highest value and post-Cr was second. Surface color was all Y. The color fastness was very good at the second repetition of no mordanted silk fabrics, all mordant fabrics were not improved the colorfastness. The antibacterial activity showed at Staphylococcus aureus tested specimen that bacterial reduction rate was 99.7%.

• 한국의류학회지
• /
• 제21권2호
• /
• pp.406-413
• /
• 1997

The dyeability and colorfastness of browning extracts from mushroom were investigated. The results of this study are as follows, 1. Browning extracts from mushroom exhibited dyeability to wool, nylon and silk. The wool and silk had the greatest K/S value at pH 4 and nylon at pH 5 2. Furthermore, the increase in K/S value corresponded to temperature, time, and the number of dyeing. 3. In most cases, the value of K/S was increased by mordant treatment. The treatment of pre-mordant caused the increase in K/S value depending on the concentration of mordant, but not in the color. Co.mordant and post-mordant treaments, however, showed various colors of YR, Y, and GY types of Munsell color wheel. 4. In the most cases, color fastness of light, drycleaning, laundry, sweat, rubbing was excellent.

• 대한가정학회지
• /
• 제42권7호
• /
• pp.55-61
• /
• 2004

The Purpose or this study was to determine the optimal dyeing condition or Chelidonium majus extracts onto silk fabrics. Among the various dyeing properties, the colorfastness of fabrics dyed with Chelidonium majus extracts was investigated in different conditions such as dyeing temperature, dyeing time, dyeing pH etc. We also tried to dye fabrics using the Chelidonium majus extracts which were lyophilized. Although mordant was not used, dyed fabrics showed relatively good dyeability and the main pigment of Chelidonium majus showed yellow vividly in the appropriate dyeing conditions. At a dyeing temperature above 40$^{\circ}C$, the $\Delta$E value increased but the yellowish tint decreased. The pH value of unadjusted Chelidonium majus extracts was 6.4, at which a deep yellow was obtained. The dye equilibrium was reached 40 minutes after dyeing. The colorfastness to washing and light was poor at 1-2 and 2-3, respectively, but the dry-cleaning fastness was good at 4-5.

• 대한가정학회지
• /
• 제39권3호
• /
• pp.83-91
• /
• 2001

The dyeability of the Eucommiae Cortex were examined to establish the optimum condition for dyeing of Eucommiae Cortex. The results of this study are as follows, Wool, nylon and silk had the highest K/S value at pH 3. The dyeability was the highest in wool, nylon, and silk. In addition, the increase in K/S value corresponded to temperature in wool, nylon and silk, and the greatest K/S value at 95$^{\circ}C$. The increase in K/S value corresponded to dyeing times in wool, nylon and silk, and the greatest K/S value at 120min. Also, the K/S value increased in concomitance with the increased number of dyeing repetition. In the most cases, colorfastness of light was low but colorfastness of laundry, sweat was relatively good.

• 한국염색가공학회지
• /
• 제23권1호
• /
• pp.21-27
• /
• 2011

The natural dyeing of cotton fabric with gardenia blue powder was studied. Cotton fabrics were treated with chitosan in order to increase K/S values and colorfastness. K/S values were increased with increasing the concentration of gardenia blue powder, dyeing time and temperature, and the lower pH of dye bath. In case of chitosan finishing, K/S values were increased, and ${\lambda}_{max}$ shifted to 600nm at 400nm. The wash fastness was improved, but the abrasion fastness was lowered in the case of wet rubbing.

• 한국의류산업학회지
• /
• 제13권3호
• /
• pp.432-437
• /
• 2011

The natural dyeing of silk fabric with Rheum undulatum L. extract was investigated. The proper colorant concentration, dyeing temperature, dyeing time, and pH for the dyeing of silk fabric with Rheum undulatum L. extract were 90% v/v, $90^{\circ}C$, 80 minutes and pH 3, respectively. In various mordanted methods, the K/S values of mordanted methods were higher than those of unmordanted methods. Light colorfastness of mordanted silk fabric was improved by mordanting. The antibacterial properties of dyed and mordanted silk fabric showed a high reduction rate, and Cu mordant was showed the most effective bacterial reduction.

• 한국자원식물학회지
• /
• 제20권3호
• /
• pp.247-250
• /
• 2007

This study was performed to investigate the discrimination of Angelica gigas, Angelica acutiloba and Angelica sinensis on the treatment of chromaticity and colorfastness. Angelica gigantis root has been used as a Korean traditional medicine for the treatment of woman disease. Natural dyes give us many great benefits, including diversified color, but no pollution. These studies were carried out acetate iron, dichloride copper and alum with a mordant to ramie fabric. The ramie fabric was dyed with Angelica gigas, Angelica acutiloba and Angelica sinensis. The results of experiment showed as follows: In discrimination by dyeing, the colors of Angelica acutiloba and Angelica sinensis were very similar, but that of Angelica gigas was different. There were no differences among colors of materials using non-mordant. But dyeing with iron acetate and copper dichloride were showed dark in Angelica gigas than other angelica species.

• 한국의류학회지
• /
• 제28권12호
• /
• pp.1625-1631
• /
• 2004

개망초로부터 추출한 색소의 면 섬유에 대한 염색성을 조사하였다. 염색조건과 매염처리가 염착량(K/S값)및 CIELAB 색상에 미치는 영향을 평가하였으며, 또한 염색한 시료의 견뢰도를 측정하여 실용성을 확인하였다. 개망초 색소의 면 섬유에 대한 친화력은 높지 않았으며, Freundlich형의 등온흡착곡선을 보여 염착이 주로 수소결합에 의해 이루어지는 것으로 나타났다. 동시 또는 후매염처리 방법보다는 전매염처리 방법이 염차량 증진에 더 효과적이었으나, 주석매염제를 제외하고 매염제에 의한 염착량 증진효과는 크지 않았다. 매염처리에 관계없이 모든 시료는 Y계열의 색상을 나타내어 큰 변화는 없었다. 모든 시료의 세탁견뢰도는 낮았으며 , 땀 및 마찰견뢰도는 매우 양호하였으며 매염 처리가 견뢰도 증진에 미치는 영향은 크지 않았다.

• 한국의류학회지
• /
• 제23권6호
• /
• pp.788-799
• /
• 1999

This study was performed to investigate the effect of mordants on the dyeability colorfastness to light and to laundering and biological properties of mordanted and natural-dyed cotton and silk substrates. Natural red dyes were extracted from Caesalpinia Sappan L. (Sappan wood) and Rubia Akane Nakai (Madder) by boil water Five different compounds of Al, Cr, Cu, Fe and Sn were used as mordanting agents. The result of this study are sumarized as follows ; 1. In the of the fabrics mordanted and dyed with sappan wood K/S value increases and λmax shifts to the longer wavelength as mordant concentration increases. Color of the fabrics dyed with sappan wood and madder change to redder bluer and lighter after mordanting. 2. As the number of repetition of dyeing-mordnating process increase the color of the dyed fabrics tend to be redder bluer and darker. Mordanted dyes with Al and Sn make chroma increase. The quantity of mordant absorbed in the silk fabric increase as mordant concentration increase. More Fe is absorbed in silk than Cr is. 3. After being exposed to light the fabrics dyed with sappan wood and madder change to less red Fe and Cu mordanting yeild better colorfastness to light than others does. Natural-dyed fabrics exposed to light tend to be faded and whitened in CIELAB chromaticity co-ordinates. So we might trace back the original color of ancient faded fabrics by changes in color of natural dyes. 4. After washing the colors of natural dyes change to more blue, Fe and Cu mordanting give better colorfastness to wash than others do. 5. The soil-burial cotton is more susceptible to mildew and rot than the silk is. Antimicrobial activity of the natural-dyed cotton can be enhanced by Cu and silk can be enhanced by Cu and Cr mordanting respectively.