• KOREAN POULTRY JOURNAL
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• v.16 no.7 s.177
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• pp.105-109
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• 1984

• Korean Journal of Poultry Science
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• v.38 no.3
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• pp.239-245
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• 2011

Pigments in the diet affect yolk colors. Due to variations in both the bioavailability of pigments in chickens and their amounts occurring in the feed ingredients, concern about egg quality arises in terms of yolk color. In this study, the effects of pigments, produced through cell culture in the laboratory, on yolk colors were determined for 4 weeks in laying hens receiving one of the 6 dietary treatments: control diets containing 1) no synthetic pigments (CON); 2) canthaxanthin (4 ppm) purchased from BASF (BASF); 3) cultured cells so that the diet had canthaxanthin at 4 ppm (CX); 4) cultured cells so that the diet had lycopene at 30 ppm (LP); 5) canthaxanthin (4 ppm) that was purified from cultured cells (SPCX); or 6) lycopene (30 ppm) that was purified from cultured cells. Relation between deposition of pigments into yolks and egg production was also tested. Yolk color of eggs from chickens fed dietary CX was significantly enhanced, which was slightly but significantly below that of BASF. Results from other treatments were lower than those of CX. Deposit rates of pigments into yolks were: BASF > CX > SPCX > LP > SPLP. The amounts of pigments, with the exception of SPLP, in feed were not changed during the storage for 4 weeks at $25^{\circ}C$. Egg production rates varied among treatments during the initial phase of the study but became relatively uniform at the later stage, except for CON and LP groups. The results of the present study indicate that the deposition of pigments into yolks is independent of egg production.

• Polymer Science and Technology
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• v.6 no.2
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• pp.137-144
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• 1995

• 한국방재학회:학술대회논문집
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• 2010.02a
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• pp.47.1-47.1
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• 2010

도로의 기능은 사람이나 물품을 한 장소에서 다른 장소로 신속하게 이동하기 위한 통로로 이용되어져 왔으며, 이로 인하여 도로이용자들은 도로의 기능적인 측면, 즉 내구성 및 공용성이 중시되어왔다. 그러나 최근에는 삶의 질의 향상으로 인해 기능적인 편리뿐만 아니라 도로에서도 심미적인 고려의 필요성이 제기되어왔다. 따라서 도로연구자들은 다양한 방법 등으로 경관포장 연구를 추진하였으며, 이의 결과물로 칼라블록, 칼라아스팔트포장 등의 경관포장재의 개발이 이루어졌다. 하지만 기존 기술 등은 표현 및 내구성의 한계로 인하여 많은 문제점을 가지고 있다. 이를 위해 본 고에서는 새로운 착색기초재 및 이를 활용한 착색포장공법을 소개하고자하며, 이를 통해 새로운 경관포장공법을 제시하고자 한다.

• Journal of Korean Ophthalmic Optics Society
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• v.16 no.4
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• pp.403-408
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• 2011

Purpose: To study the concentration distribution and diffusion depth in tinted lenses using the law of diffusion. Methods: The measured values taken from experiments were fitted with the theoretical fitting curve induced on the basis of Fick's second law of diffusion. Results: The fitting curves were in very good agreement with the measured values. As the results, we found the quantitative relationship between mass of dye solution diffused into the tinted lens per unit area and dyeing time, and evaluated concentration distribution of dye in tinted lens, diffusion depth, etc. Conclusions: The dyeing mechanism of tinted lenses can be well described by diffusion theory.

• Journal of the Korea Concrete Institute
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• v.23 no.3
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• pp.265-272
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• 2011

Even though concrete is the most important material for building structures, its intrinsic gray color degrades urban esthetics. In order to improve this problem, coloring methods of mixing pigment in concrete batch and painting the surface of concrete surface have been tried. However, applications of the coloring methods in construction field are difficult due to high cost and low durability. Recently, acid stain agent is emerging as a new coloring method for concrete. It is able to apply a remarkably thin colored layer on a concrete surface from chemical reaction between acid and alkaline solutions. This study has examined the changes and variations of the surface layer of mortar specimen from chemical reaction of acid stained agents. The colors were changed into natural irregular stains according to aging. After the staining, no shape change was found from visible inspections. Microstructure of the colored surface applied with acid stained agent was much rougher than that of original mortar. When the colored layer was compared to original surface, crystals of hydrate such as $Ca(OH)_2$ and C-S-H gel were observed. Surface hardness was same or slightly higher in the colored layer. The value of pH was reduced by approximately 10%, weight contents of elements such as Ca, Si, and Al were low. In the chemical composition of the colored layer, the non-cement based elements of Mn, Cr, and Cu increased. Also, Fe and alkali elements of K and Na increased.

• The monthly packaging world
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• s.16
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• pp.46-50
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• 1994

그라비어 잉크는 실린더의 특성을 어떻게 살려주느냐에 따라 인쇄 품질이 결정된다. 그라비어 잉크는 기본적으로 색채를 부여하는 착색제와 Vehicle로 구성되어 있으며, Vehicle은 Binder와 Solvent류로 구분된다. 지면상 이번호에서는 그라비어 잉크의 여러 조성을 알아보고, 다음호에서는 그라비어 잉크의 기능별 분류, 후가공 기술과의 관계, 시장동향, 환경대책 등을 살펴본다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.22 no.4
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• pp.124-130
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• 2021

Dental prosthesis translucency importantly contributes to aesthetic outcomes. The purpose of this study was to investigate the effect of drying time and zirconia coloring agent type on translucency. For the experiment, 90 circular specimens were fabricated for each zirconia block. Then, zirconia specimens were treated with a coloring agent for 180 seconds and dried for 0 seconds (undried), 30 seconds (intermediate dry), or 30 minutes (complete dry). Then, a specimen was placed on a black standard tile or a white standard tile, and using a standard D65 light source reflected was measured using the light removal method. A total of three repeated measurements were obtained per specimen. One-way ANOVA was used to compare and analyze the relationship between zirconia translucency and drying time. Zirconia and coloring liquid types were significantly associated with translucency (P < 0.001). Although no significant difference was observed with respect to drying time (P > 0.922), zirconia in the completely dried (30 minutes) state was more translucent.

• Applied Biological Chemistry
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• v.40 no.5
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• pp.409-415
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• 1997

In order to find out the relationship between contained water and coloring rate of thiamine monosalts in preparations, three kinds of thiamine monorhodanate, -monoiodide, -monobromide were manufactured and investigated as powders, granules and compressed tablets, respectively. Apparent coloring rate constants and solubility in accordance with temperature changes were measured. Nature of contained water and coloration of thiamine monosalts in preparations was examined in detail. It was thereby found that if water attached in a free state, coloration occured whose degree was approximately proportional to the quantity of such water, and a linear relation was found to hold between the logarithm of the apparent coloring rate constants and the reciprocal of the absolute temperature in granules and compressed tablets.