• Journal of the Korean Society of Clothing and Textiles
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• v.27 no.9_10
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• pp.1134-1143
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• 2003

The purpose of this study is to investigate surface color change and effects of mordants on the K/S values of silk and wool fabrics dyed with Lac extract, according to the mordanting methods and conditions such as temperature, concentration and time of the mordanting bath. The results were as follow; 1 K/S values of the silk and wool fabrics according to the temperature of the mordanting bath were shown a slight decline beyond 40$^{\circ}C$. 2. Surface color of the silk changed from red to reddish purple and that of the wool showed red tone when mordanted with Aluminum postassium sulfate, Copper acetate and Copper (II) sulfate regardless of the mordanting conditions. 3. The light and dry cleaning fastness of silk and wool fabrics dyed with Lac extract according to the mordanting methods were very good.

• Journal of dental hygiene science
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• v.21 no.4
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• pp.219-226
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• 2021

Background: Proper detection and management of dental plaque are essential for individual oral health. We aimed to evaluate the maturation level of dental plaque using a two-tone disclosing agent and to compare it with the fluorescence of dental plaque on the quantitative light-induced fluorescence (QLF) image to obtain primary data for the development of a new dental plaque scoring system. Methods: Twenty-eight subjects who consented to participate after understanding the purpose of the study were screened. The images of the anterior teeth were obtained using the QLF device. Subsequently, dental plaque was stained with a two-tone disclosing solution and a photograph was obtained with a digital single-lens reflex (DSLR) camera. The staining scores were assigned as follows: 0 for no staining, 1 for pink staining, and 2 for blue staining. The marked points on the DSLR images were selected for RGB color analysis. The relationship between dental plaque maturation and the red/green (R/G) ratio was evaluated using Spearman's rank correlation. Additionally, different red fluorescence values according to dental plaque accumulation were assessed using one-way analysis of variance followed by Scheffe's post-hoc test to identify statistically significant differences between the groups. Results: A comparison of the intensity of red fluorescence according to the maturation of the two-tone stained dental plaque confirmed that R/G ratio was higher in the QLF images with dental plaque maturation (p<0.001). Correlation analysis between the stained dental plaque and the red fluorescence intensity in the QLF image confirmed an excellent positive correlation (p<0.001). Conclusion: A new plaque scoring system can be developed based on the results of the present study. In addition, these study results may also help in dental plaque management in the clinical setting.

• Science of Emotion and Sensibility
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• v.21 no.3
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• pp.115-128
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• 2018

Tibetans who live in the Tibetan highlands, the Roof of the World, have their own unique lifestyle wherein they conform to its long history, natural environment, and their own form of clothing culture. In their costumes, the use of colors, patterns and designs express religious meaning and represent the hopes and heart of life, which respects nature. This study aims to analyze the colors used in Tibetan costumes and examine the meaning of these colors. In addition, this study intends to understand the specificity of Tibetan culture through a consideration of the symbolism of the colors of ethnic costumes. By examining the literature and conducting case studies, colors of Tibetan costumes were analyzed through the I.R.I HUE-TONE system. We analyzed 96 photographs of the costumes photographed during the Tibet ceremony costume, photographs seen at the Qinghai Tibet Culture Museum and photographs from the Internet museum. The results revealed the following: First, the most important element of the costumes is connected to the five colors of JangOsaek, which gives meaning to each color. Red, navy blue, yellow, white and green symbolize fire, the sky, earth, clouds or snow, and grasslands, respectively. Second, Tibetan costumes are characterized by bold color contrasts such as red and green, black and white, red and yellow, and yellow and purple to achieve an intense harmony of colors. Third, these fancy costumes express the unique aesthetics of the Tibetan people. The primary colors follow general emotions, but they can also include their own emotion.

• The Journal of the Korea Contents Association
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• v.15 no.11
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• pp.10-17
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• 2015

Emotional computer that you want to study in a regular number change is the continuing sensitivity. Emotional Computing manner the sensibilities numbered and emotions were running through the trees. Emotional assessment of emotional sensibility computing was used as the coordinates of the key effects of the James A. Russell (Core Affect). Emotional tree runs purpose was to verify the correlation of sensitivity and emotion computing tree. Emotional tree attributes experiment color, brightness, saturation was configured with. When 50% brightness increase, about pleasure (X-axis) has increased by 10.49 points. Brightness 50%, GREEN 50% increase in the degree of pleasure (X-axis) of 10.49 points, tone (Y axis) has increased by 15.85 points. Brightness 50%, GREEN 50% increase in the degree of pleasure (X-axis) of 10.49 points, tone (Y axis) has increased by 15.85 points. Brightness 50% of the free-extent (X-axis), BLUE 50% when the tone (Y axis), pleasure extent (X-axis) of 10.49 points, tone (Y axis) as much as 14.65 points sensibilities have changed. When representatives emotions size changes have increased 50% brightness, color RED 50%, increased 5.4% Emotional excitement, emotion depressed declined -4.2%. 50% brightness, color GREEN 50% increase in emotional excitement had increased to 8.6%, declined by -5.5% this melancholy sensibility. Representative emotion and emotional changes increase or decrease the size of the emotional attributes were analyzed by quantitative methods. After the happy emotions number is needed to study more similar to the human emotion through the execution of the video image emotion emotional tree computing.

• Journal of the Korea Fashion and Costume Design Association
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• v.16 no.1
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• pp.125-138
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• 2014

The purpose of this study was to investigate emotional images, preference, and purchasing intention on the color combination for knitwear cultural goods development. The subjects were 719 university students in Daejeon and Chungnam province, and the measuring instruments were 12 stimuli manipulated by the combination of chromatic and achromatic colors, and self-administrated questionnaires consisted of general color preference, emotional images, preference, and purchasing intention items of the knitwear cultural goods, and subjects' demographics attributions. The data were analyzed by Cronbach's ${\alpha}$, factor analysis, t test, ${\chi}^2$ test, ANOVA and Duncan's multiple range test, using SPSS program. The results were as follows. University students highly preferred black and gray color and deep tone on knitwear items, while they generally preferred blue and black color, and deep and pastel tone. The chromatic color combination was perceived as warm and conspicuous, but unattractive image. The achromatic color combination was perceived as cold and ordinary, but attractive image. Among the combination of chromatic and achromatic colors, gray & blue combination was perceived as more attractive image than red & dark gray combination. Color combination types of chromatic and achromatic color was showed some important differences on emotional image, preference and purchasing intention of knitwear cultural goods. Achromatic color combination was perceived as attractive image, and showed higher preference and purchasing intention than other color combination types.

• Fashion & Textile Research Journal
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• v.4 no.1
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• pp.79-85
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• 2002

To develope natural dyeing materials from the unused plant materials, we had several dyeing experiments to investigate the optimum conditions of dyeing fabrics with the waste grape juice. Dyeing experiments were done under different dyeing conditions of dyeing time, dyeing temperature, pH and concentration of dyebath and mordants which were treated after dyeing. Experimental fabrics were silk, cotton, ramie and hemp. Color difference(${\Delta}E$) and Munsell's HV/C of the dyed fabrics and color fastness of silk dyed fabrics to dry cleaning, washing, rubbing, perspiration and light were measured. The color differences of dyed experimental fabrics were very slightly increased with dyeing time and the color of dyed silk was light purple and the cotton, ramie and hemp was light red purple. The color differences of dyed experimental fabrics were decreased and the color became lighter with dyeing temperature increased. The color differences of dyed experimental fabrics were decreased and the color changed from light purple to blue with the pH of dyebath increased. The color differences of dyed experimental fabrics were slightly increased with the concentration of dyebath increased. The color of dyed fabric changed with the mordant treatment and were different among the experimental fabrics. On the whole, blue tone increased with the Al and Fe mordant and green tone increased with the Cu mordant. The color fastness of dyed silk fabrics to light, washing (change) and perspiration (change) was bad and color fastness to dry cleaning and rubbing were good.

• Fashion & Textile Research Journal
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• v.7 no.5
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• pp.547-552
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• 2005

The study has objective in raising value of the gray color as a meaningful color suiting sentiments of modern people by expressing the gray color in various perspective utilizing natural dyes that is natural at the same time having aesthetic color tones. For example, the main ingredient used for coloring black and gray color is the pyrogallol tannin and the gray tone dye can be acquired by combining the tannin with iron. In order to find the suitable condition for processing tannin, UV-Vis part absorption spectrum of Gallapple pyrogallol tannin, dye ability based on temperature and time, reflection rate based on concentration, color changes based on acid treatment and alkali treatment, changes on surface based on concentration or metal mordant condition, and lightfastness were measured. Maximum absorption wavelength (${\lambda}_{max}$) of Gallapple tannin was at around 273 nm, while strong absorption was also observed at below 350 nm. Dye ability of Gallapple tannin is done more easily on silk rather than cellulose fibers such as cotton, while the optimum condition for dyeing was observed to be at $60^{\circ}C$, for 20 minutes. As a result of acid treatment, the color of dye material consist highly of gray tones and showed red tone after the alkali treatment. While it was observed that as dye concentration and metal mordant concentration increased the color changed at counter-clockwise direction on the Y-scale of Munsell's scale of colors. Lightfastness was more on a normal fading. I hope this study opens up possibilities towards presenting gray color expressed from tannin as color with diversity and aesthetic value. In future, comparative study between dye expressed from catechol tannin dye materials will be helpful.

• Journal of the Korean Society of Clothing and Textiles
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• v.26 no.3_4
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• pp.443-453
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• 2002

The purpose of this research was to compare the evaluation of tone on tone coloration of traditional Korean dress by Korean and American women college students. The respondents were asked to evaluate 48 stimuli of the traditional Korean skirt and jacket with different tone of color. The evaluation of Korean and American students admit of various interpretation, and it can'be said that they were caused by their different cultural bacgrounds. The results of reseach can be summerized as follows. As to the red colors, Korean students evaluated vivid skirt and light or dark jacket, light skirt and vivid or dull, dark jacket, dull skirt and light jacket as harmonized. But American students judged light skirt and dull and light jacket as not harmonized. As to the yellow colors, both Korean and American students had common opinions that light skirt and dull jacket are well harmonized. Korean students thought vivid skirt and dull jacket, light skirt and dull, dark jacket, dull skirt and dark jacket are well harmonized. American students thought light skirt and vivid, light, dull jacket dull skirt and light jacket are well harmonnized. As to the green colors, Korean students evaluated vivid skirt and dull, dark jacket, light skirt and vivid, dull, dark jacket are well harmonized. But American students evaluated vivid skirt and light jacket, light skirt and dark jacket, dark skirt and vivid or light jacket are not harmonized. Among 48 stimuli of tone on tone coloration, Korean students evaluated 18 set and American students judged 30 set as harmonized.

• The Research Journal of the Costume Culture
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• v.17 no.2
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• pp.270-282
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• 2009

The purpose of this study was to inquire into lounge wear and Jeff Koons and to design lounge wear in which the works, Balloon Dog(1994$\sim$2000) and Hanging Heart(1994$\sim$2006), of Jeff Koons was applied. The concept of design was appealed as sensuousness, activeness, and comfort. The target of design was teens and those in their 20s. Knit or woven fabric in 100% cotton/silk and cotton blended was selected. The design had fitted silhouette and the items were bras, panties, pajama pants, shorts, robes, slippers etc. Adobe Illustrator CS2 and Adobe Photoshop CS2 program were used for the design. In the lounge wear in which Balloon Dog applied, main color was red, blue, and green with pale tone and frills and pleats were selected for the details. Elastic blended fabric was used for the comfortable. Variety application of color and patterns were conducted for rhythmical visual. In the lounge wear design in which Hanging Heart applied, main color was also red, blue, and green with pale tone. Halter neck and robes were selected for the sexy looking. Cool and soft feelings were pursued through use of cotton and silk blended fabrics or stripes patterns. The result of this study may give valuable information to merchandisers and designers who develop lounge wear. It may also provide designers who use computer program such as Adobe Illustrator and Adobe Photoshop as design tools with useful examples.

• Journal of the Korea Fashion and Costume Design Association
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• v.9 no.3
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• pp.47-57
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• 2007

This study focused on the properties natural dyeing and natural material and on the development of functional material for well-being in apparel industry. Comus officinalis Siebold et Zuccarini is used as natural dyeing material which had been reported that have curable effect for unbalanced immunity, geriatric diseases like urinary tract system, diabetes, hypertension, arthritis, tinnitus, hyperhidrosis and women's diseases like hypermenorrhea. And this material also has anti-cancer effect so that can restraint cancer cells. 3 kinds tester of cotton, wool and silk are dyed by boiled with each dye (flower, fruits, bark of tree) as first dyeing and dried in the shade. These testers are done by post-mordanting method. Aluminium Potassium(Alk(SO4)2), Cuprie Sulfate($CuSO4{\cdot}5H2O$), Stannous Chloride($SnCl2{\cdot}2H2O$), Ferrous Sulfate($FeCl2{\cdot}4H2O$), Titanium Sulfate 24% aqueous solution(Ti(SO4)2) are used as mordants. Dyeing results of Comus officinalis Siebold et Zuccarini flower and bark are shown as yellow color series. And dyeing result of fruits is pink color series. Silk shows the best dyeing property. As the point of view for dyeing property, Ti, Sn, Fe would be the properchoice for mordant. Following results are extracted in this study. Yellow color is resulted in dyeing with Cornus officinalis flower as non-mordanting condition. Yellowish red color is come from dyeing with Comus officinalis fruit as non-mordanting condition. Grayish yellow tone is resulted in dyeing with bark as non-mordanting condition. Orange tone color with Ti-mordanting, green tone color with Sn-mordanting and gray tone color with Fe-mordanting is resulted respectively. However light-fastness of Comus officinalis(flower, fruit, bark) is very low as 1 or 2 level in non-mordanting condition, Comus officinalis flower dyeing is turned out 3 or 4 level and fruit dyeing is 4 or 5 level, bark dyeing is 2 or 3 level with Ti-mordanting respectively. Eventually Comus officinalis fruit has the best light-colorfastness property among all of dyes. dry cleaning colorfastness of Cornus officinalis(flower, fruit, bark) is good as 4 or 5 level in Ti-mordanting condition, perspiration-colorfastness of Cornus officinalis(flower, fruit, bark) is good as 4 or 5 level in Ti-mordanting condition, With these results, this study could conclude that dye-ability, colorfastness problem is getting better after mordanting process and practical usage would be possible.