• Title/Summary/Keyword: Color properties

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Protein-Coating Evaluation Method of Colloidal Gold Nanoparticles (콜로이드 골드 나노입자의 단백질 수송성 평가법)

  • Kim, Mi-Young;Noh, Sang-Myoung;Kim, Jung-Mogg;Choi, Han-Gon;Kim, Jung-Ae;Oh, Yu-Kyoung
    • Journal of Pharmaceutical Investigation
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    • v.34 no.6
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    • pp.465-469
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    • 2004
  • Colloidal gold nanoparticles might be of use as nano scale delivery systems of various therapeutic materials in the future. Recent studies have reported the feasibility of colloidal gold nanoparticles as gene delivery systems or protein delivery systems. In this study, we aimed to develop a short-step method useful for screening the optimal coating conditions of colloidal gold nanoparticles with proteins. We observed that colloidal gold nanoparticles have properties of changing its unique color when they were exposed to NaCl solution. Taking advantage of the color changing properties of colloidal gold nanoparticles, we applied the color testing method of colloidal gold nanoparticles solutions for evaluating the protein coating nature. Using bovine serum albumin as a model protein, we tested the protein coating of colloidal gold nanoparticles via the color change upon NaCl addition. The optimal coating concentration and coating conditions of colloidal gold nanoparticles with bovine serum albumin were fixed using the color testing methods. We suggest that the color testing method might be applied to optimize the coating condition of colloidal gold nanoparticles with other therapeutic proteins.

A Study on the Color Management using sRGB Standard Color Space (sRGB 표준색공간을 이용한 컬러매니지먼트에 관한 연구)

  • Kim, Dong-Koun;Cho, Ga-Ram;Koo, Chul-Whoi
    • Journal of the Korean Graphic Arts Communication Society
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    • v.23 no.1
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    • pp.37-51
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    • 2005
  • The solution way of color difference in display device is using a device profile recorded with color dimension, color properties of each device and is using sRGB color space. The color matching is better sRGB than RGB color space. The sRGB is independent device color space and based on the monitor characteristice. An accurate characterization of the display device is essential for color matching. The calibration and characterization process in display device is needed to transform the device dependent color to the device independent color. The process of characterization performs a linerizaiton and transforms the linearized values into the CIE XYZ tristimulus values. The purposes of this paper is to estimate color reproduction using device profile and to explain the propriety of transformation method using variable.

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Colorimetric Properties and Color Sensibility Factors for Naturally Dyed Fabrics by Microbial Prodiginine Colorant (미생물 유래 Prodiginine 색소로 천연염색한 직물의 색채특성 및 색채감성요인)

  • Choi, Jong--Myoung;Kim, Yong-Sook;Yi, Eun-Jou
    • Science of Emotion and Sensibility
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    • v.13 no.4
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    • pp.693-702
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    • 2010
  • This study was carried out in order to investigate the colorimetric values, the color sensation and sensibility for naturally dyed fabrics with microbial prodiginine colorant and to find out the relationship among color sensation, color sensibility factors and colorimetric properties of them. Color sensation and sensibility of four different fabric stimuli coloring red purple by a microbial prodiginine colorant produced from Zooshikella sp. were subjectively evaluated by university students. The color sensibility for the naturally dyed fabrics was classified into four factors: 'pleasantness', 'gracefulness', 'characteristic' and 'relax'. Color sensibility factor 'pleasantness' was the dominant factor for the naturally dyed fabrics with microbial prodiginine colorant. All color sensibility factors showed a significant correlations with the color sensation and colorimetric properties of the dyed fabrics with prodiginine. There were showed significant relationships between the color sensibility factors and lightness $L^{\ast}$, color saturation $C^{\ast}$, $a^{\ast}$ and $b^{\ast}$. Also, color preference of the dyed fabrics with prodiginine was found to be influenced mainly by color sensibility factors.

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A Study on the Color and Texture of Fashion Fabrics (패션 소재의 색채 이미지와 질감에 관한 연구)

  • 추선형;김영인
    • Journal of the Korean Society of Clothing and Textiles
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    • v.26 no.2
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    • pp.193-204
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    • 2002
  • Many fashion forecasting companies propose the fashion colors in every season. Modern fashion consumer respond to fashionable trends with utmost sensitivity. Therefore to satisfy the consumer with an trendy image, the fashion design must be found first, as image matters, followed by an analysis of each design element's effect on the total image composition. In previous studies of fashion image, has been discussed the positive correlation between fashion design elements of color, fabric, and form as the central issue. In this thesis, two of the fashion design elements, color and fabric are simultaneously considered to classify the image of fabric in fashion. For the color variables, 10 hues are selected from Munsell's system of color notation, and 12 tones from PCCS color notation., which are currently used in the domestic fashion industry. Texture variables used in this survey are classified by luster, prominence-depression of surface, thickness, and density of fabric. Graduate students from 20 to 50 years old and the specialists in fashion companies participated in the survey. The results of this survey are as follows: 1. The fashion fabric image is classified as 5 main images: 'elegant', 'comfortable', 'characteristic', 'light'and 'simple'. 2. The influence of hue, tone and texture is significant to the fashion fabric image. Following colors, yellow-red, red hues and light grayish, dark grayish tones convey the elegant image. The texture property for the elegant image is luster, thin and low density. Properties of fabric conveying the comfortable image are yellow-red and green-yellow hue, soft, light tones, matte and high density. Furthermore, hue turned out to be a insignificant variables for the unique image, whereas dark grayish, grayish tone, luster and prominent texture convey a unique image. For light image, properties of fabric are blue-green, purple hues, light, bright tones with thin, low density texture. Properties of fabric conveying the simple image are blue-green, purple-blue, green-yellow hues, and strong, vivid tones, with luster and flat texture.

Color Simulation to Demonstrate the Effects of the Filter Layer with $CoAl_2O_4$ on Inner Face of CRT Panel

  • Kim, Sang-Mun
    • Journal of Information Display
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    • v.6 no.3
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    • pp.26-29
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    • 2005
  • Nanosize cobalt aluminate($CoAl_2O_4$) power was coated as filter layer for us to improve the color purity and contrast performances on the inner face of CRT panel. We simulated color properties by measuring the transmittance and thickness of the coated filter layer. Contrast performance could be improved and color gamut was also changed by the selective light absorption of filter layer at 580${\sim}$605 nm.

The Natural Dyeing of Silk Fabric with Onion Shell (양파외피에 의한 견직물의 염색)

  • Kim, Sang-Yool
    • Fashion & Textile Research Journal
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    • v.3 no.1
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    • pp.35-41
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    • 2001
  • Dyeing properties of silk fabric with onion shell were studied by investigating the effect of dyeing conditions, such as concentration of onion shell, dyeing temperature, dyeing time and pH, on dye uptakes. And also the effects of mordants and mordanting methods or color change and dye uptakes were investigated. For the practical use, the various color fastness of dyed and mordanted fabric were evaluated. The color fastness was improved when Fe mordant was added.

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Studies on the Natural dyes(II) - Dyeing of silk fibers by Gromwell color matter - (천연염료에 관한 연구(II) -자근색소에 의한 견섬유염색 -)

  • Cho Kyung Rae
    • Journal of the Korean Society of Clothing and Textiles
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    • v.13 no.4
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    • pp.370-379
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    • 1989
  • In previous paper, the optical behavior of coloring matter of Cromwell under several conditions were investigated. In this paper, the fading behavior of color solution extracted from Growell by methanol, dyeing properties of this color on the silk fibers in water and methanol, the three property of color of dyed silk fabrics, and fading behavior of dyed silk fabrics with Cromwell color under light and washing were discussed.

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Studies on the consolidants and water-repellents of stone cultural properties (석조문화재 발수경화제 시험연구(II))

  • Eom, Doo-Sung;Kim, Sa-Dug;Hong, Jung-Ki;Kang, Dai-Ill;Lee, Myeong-Hui
    • 보존과학연구
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    • s.22
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    • pp.133-154
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    • 2001
  • Stone cultural properties, exposed in natural environment, is deteriorated by many weathering reasons for a long time. It is necessary to treat of consolidation and water-repellent on the surface because of the conservation of stone cultural properties. We was treated the specimen [granite(Hwangdung-suk), sandstone, marble(in JeongSeon)] by synthesis resin of DWR-Ⅲ, SI2121 and fluoropolymer, and tested on the durability, water-repellent, color stability and luster generation etc. In the result of this study, DWR-Ⅲ and fluoropolymer is superior to the waterrepellent, durability of salt and acid rain. SI2121 is superior to the penetration because of lower viscosity, but the water-repellent is inferior to the others. After the treatment of chemicals, the color-variation make an appearance but luster-generation doesn’t. With the passage of time, the color of specimen was got better because of the ‘washing’ phenomenon for ultra-violet, salt etc.

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Changes in the Physicochemical Properties and Color Values of Salted and Fermented Shrimp (새우젓 발효 중 이화학적 특성 및 색도 변화)

  • Cho, Hee-Sook;Kim, Kyung-Hee
    • Journal of the East Asian Society of Dietary Life
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    • v.20 no.1
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    • pp.69-76
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    • 2010
  • This study was performed to examine the effects of salt addition level on changes in the physicochemical properties and color values of salted shrimp during fermentation. Fresh shrimp were salted with different concentrations (8, 18, 28%) of Chunil salt and fermented at $20^{\circ}C$ for 160 days. In the 8% salted shrimp treatment, volatile basic nitrogen (VBN), amino nitrogen (AN), and trimethylamine (TMA) contents rapidly increased during the fermentation period, while in the 18 and 28% salt groups these increases were reduced throughout the 160 days of fermentation. Thiobarbituric acid (TBA) values increased rapidly for 120 days of fermentation and then decreased. The thiobarbituric acid values of the 18, and 28% salted and fermented shrimp groups were lower than the that of the 8% group. In addition, Hunter's color L, a, and b values decreased as the fermentation period increased.

The Study on the Mordanting and Dyeing Properties of Sophora Japonica L. (괴화의 염색성에 관한 연구)

  • 주영주;소황옥
    • Journal of the Korean Society of Costume
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    • v.52 no.3
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    • pp.19-27
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    • 2002
  • This paper surveys the mordanting and dyeing properties of Sophora japonica L. Appropriate extraction, dyeing and mordanting condition of Sophora japonica L. were determined, and the effect of mordanting method on dye uptake and color fastness of dyed fabric was investigated. The maximum absorbance of Sophora japonica L. solution was 367.6mn, rutin solution was 365.6mn. The color of Sophora japonica L. solution was affected at pH 2 and pH 8~9. The optimum temperature to extract Sophora japonica L. was during 1 hour in 8$0^{\circ}C$. The effective dyeing temperature and time of silk were 10$0^{\circ}C$, 60min. K/S value of dyeing fabrics was increased by pre-mordanting treatment, especially Fe, Sn, Cr. In the case of Sophora japonica L. light fastness was increased by Fe mordanting. Perspiration fastness was better in acidic solution than that in alkaline solution. Fastness to rubbing and dry-cleaning were good in general.