• Journal of Korea Technical Association of The Pulp and Paper Industry
• /
• v.38 no.3 s.116
• /
• pp.66-71
• /
• 2006

The objective of this study was to find in what color Hanji(Korean hand-made paper) is dyed when it is dyed with a pigment extracted from clove tree using different kinds of mordant, and how the paper is discolored and variety of strength under the condition of accelerated aging test. The results of this experiment are as follows. The Hanji dyed with aluminum acetate mordant was colored yellowish brown at pH 4.82, discoloration after aging was as much as a slight difference of color was recognized, and the decrease of strength after aging test was small. Thus, the method using aluminum acetate mordant was usable in coloring Hanji. The second most useful Hanji dyeing moth of was using distilled water and ferrous sulfate mordant, which dyed Hanji light brown at pH 6.03. However, when pigment was extracted using distilled water and copper sulfate mordant was used, discoloration was satisfactory but strength decreased too much and pale brown was obtained. Thus, this method was not usable.

• Textile Coloration and Finishing
• /
• v.12 no.2
• /
• pp.129-137
• /
• 2000

Silk fabrics were dyed by Cochineal extracts after mordanted with various mordants and their properties of dyeing, fastness and change of surface color were investigated. Silk fabrics were mordanted with aluminum potassium sulfate, copper acetate, tin chloride, iron sulfate or chromium potassium sulfate at $60^\circ{C}$ for 30 minutes and subsequently dyed at $60^\circ{C}$ for 60 minutes unless mentioned otherwise. The dye-uptake of silk fabrics increased with the concentration of Cochineal extracts and mordants used. Maximum dye-uptake was obtained at pH 3.5-4, regardless of the type of mordants used. Surface color of silk fabrics changed from red purple to purple when mordanted with Al or Cu mordant, from purple to purple blue with Fe mordant and showed red purple with Sn or Cr mordant, respectively. It also changed according to pH of dyeing bath. Dyed silk fabrics showed poor light fastness but good dry-cleaning, perspiration and rubbing fastness.

• Journal of the Korean Home Economics Association
• /
• v.25 no.3
• /
• pp.1-13
• /
• 1987

In this study, I have tested the effects of the agents and dyeing conditions on the Brazil-wood dyestuff as one plant dyestuffs. According to the tests, I have fount that color differenciation depending opon the agents and procedual condtitions. As the agents, Alm induced redness and light yellowness by Aluminum Acetate, dark greenness or blueness by Ferrous chloride, dark redness by Stannous Chloride, dark grenness or blueness by Copperous Chloride, light yellowness or greenness by Calcium Dihydroxide. On the other hand, color-fastness differed from various mordant agents. The color-fastnes was solid using multiple agents than sole agent.

• Textile Coloration and Finishing
• /
• v.11 no.4
• /
• pp.39-49
• /
• 1999

In order to study the properties of cochineal colors, uv-visible spectra of cochineal colors solution, dyeing properties on the wool in several dyeing conditions and thermodynamic parameters were investigated. UV-visible spectra of cochineal colors solution showed hypochromic effect with the lapse of irradiation time but bathochromic shift with decreasing acidity of solution and addition of metallic ions. The concentration of cochineal colors in wool fiber increased with the increase of dyeing temperature, time, and acidity of initial dyebath. The value of apparent diffusion coefficients and standard affinities of dyeing decreased with the increase of dyeing temperature. The standard heats of dyeing$(\Delta{H}^\circ)$ and variation of entropy$(\Delta{S}^\circ)$ increased with the increase of concentration of initial dyebath. The activation energy$(E_a)$ were calculated to be 1.399~2.595kcal/mol in condition of 6~1%(o.w.f) dyebath. Wool fabrics were dyed reddish blue by iron sulfate, copper sulfate, aluminum acetate and tannic acid, and red by tin chloride, respectively. Lightfastness of wool fabrics dyed by cochineal colors were increased by mordant treatment, especially copper sulfate and iron sulfate treatment.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.25 no.8
• /
• pp.1493-1499
• /
• 2001

This paper investigated the dyeabiltiy and surface color of Han Jee dyed with Gardenia extract after mordanted with mordants under the various dyeing conditions. The results obtained were as follows 1) λmax of the dyeing Han Jee dyed with Gardenia appeared at 660 and 710nm. 2)K/s value of dyeing Han Jee was increased when dyeing condition, temperature, time was higher. 3) Surface color of Han Jee with mordants changed differently according to the mordants used : 3.2Y by Aluminum acetate, 2.0GY by Copper sulfate, 9.5YR by Iron sulfate. 3.4Y by Tin chloride, and 4.5Y by non-mordanting.