• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2009년도 추계 학술논문 발표대회
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• pp.149-152
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• 2009

Recent trends show an increased usage of 'colored concrete', a inorganic pigmented concrete mix, especially in smalll to large scale buildings. However, due to lack of varieties, current usage of colored concrete is limited to the one or two simple color of the time in construction work. so, this study is to investigate the properties of concrete adding temperature reactive pigment. The results of the experiment, the basic material characteristics of concrete such as of compressive strength and slump is affected by the amount rate of adding the temperature reactive pigment. And, it showed the excellent color expression and changing with temperature reactive pigment.

• 한국기계가공학회지
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• 제14권2호
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• pp.87-92
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• 2015

The injection molding process is widely used in the production of most plastic products. In order to make metal-colored plastic products like those found in modern luxury home alliances, metallic pigments are mixed with a basic resin material for injection molding. However, process control for metal-colored plastic products is extremely difficult due to the non-uniform melt flow of the metallic resin pigments. In this study, the effect of process parameters on the quality of a metal-colored plastic product is evaluated. A rapid mold cooling method using a compressed cryogenic fluid is also proposed to decrease the content of undesired compounds within the plastic product.

• Journal of Plant Biotechnology
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• 제36권2호
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• pp.124-129
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• 2009

In general, the root color of Codonopsis lanceolata is white, but red or blue-colored root is found at a low frequency in nature. Red or blue-colored roots have scarcity value, thus farmers wish to produce colored roots. The factors for determining the color of roots are unclear whether the color is controlled by genetically or simply by environmentally such as soil environment. Using in vitro culture system which is advantageous for setting of the same culture condition, we analyzed the physiological and morphological characteristics and genetic differences among red-, blue- and white lines of C. lanceolata. In the red colored roots, stems of in vitro cultured plantlet were colored in dark red pigment. Histological analysis revealed that the red pigment was accumulated in the outer cortex layer of the stem and determined as anthocyanin. Chlorophyll contents in red root lines were higher than those in white- and blue root lines. Plantlets from red roots were smaller in both shoot length and total leaf area than those from white- and blue roots. Genetic differences among the three different colored C. lanceolata were determined by RAPD (Randomly Amplified Polymorphic DNA) analysis. Each line of colored roots had clear DNA polymorphism. These results indicate that the occurrence of red- and blue colored roots in nature was determined by genetic factors rather than soil enviromental conditions.

• 대한토목학회논문집
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• 제2권2호
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• pp.11-18
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• 1982

가열혼합식(加熱混合式) 칼라포장용(鋪裝用)바인더는 스트레이트아스팔트와 물리적(物理的)인 제성질(諸性質)은 유사(類似)하면서 색깔이 흑갈색(黑褐色)이 아닐 것이 요구된다. 위의 제성질(諸性質)을 갖는 담황색(淡黃色)의 합성수지조성물(合成樹脂組成物)을 개발하여 이를 골재(骨材)와 믹싱한 혼합물(混合物)과 스트레이트아스팔트혼합물(混合物)과 각종시험(各種試驗)으로 비교한 결과 칼라포장용(鋪裝用)바인더로 사용가능성(使用可能性)을 확인(確認)했다. 색깔을 내기위한 안료(顔料) 역시 국산재료(國産材料)의 사용가능성(使用可能性)을 시험(試驗)을 거쳐 확인(確認)했다. 아스팔트 믹싱플랜트로 시험혼합(試驗混合)과 현장포설(現場鋪設)을 거쳐 실용화단계(實用化段階)에 이르게 되었다. 칼라포장용(鋪裝用) 혼합물(混合物)의 혼합(混合) 및 포설(鋪設)은 일반적(一般的)인 아스팔트콘크리트혼합물(混合物)과 같은 방식(方式)으로 하되 안료(顔料)만큼 미네랄필러분에서 차감(差減)하여 대체(代替)한다. 안료(顔料)의 배합량(配合量)은 사용(使用)하는 타재료(他材料)에 의해 시험혼합(試驗混合)에서 결정한다.

• 한국세라믹학회지
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• 제12권1호
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• pp.29-36
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• 1975

This study was conducted to research the formation, color development and application for colored glazes of the spinel solid solutions of the green pigment. On specimens prepared by calcining the oxide and basic carbonate mixture at 1250℃ for 1.5 hour, the x-ray analysis, measurement of reflectance and the test of their stabiality as a glaze pigment were carried out. The results are summarized as follows 1) Each sample is composed of single spinel and not of mixture of spinel. 2) Formation of continuous soild solution, except for a few instances, pertaining to Vegard's law was confirmed by means of the x-ray analysis. 3) The more difference between absorption and reflectance lies, the lighter colors are. When the absorption occurs at the high-reflectance, the excitation purity becomes low. On the contrary when the absorption takes place at the low-reflectance, the excitation purity becomes low. On the contrary when the absorption takes place at the low-reflectance, the excitation purity is higher. 4) Colors obtained in the CdO-MgO-Cr2O3-Al2O3 system, as the amounts of Al3+ increased, change from green through brown to pink, and the absorption peak shifts towards violet region. 5) An increase in Co2+ in the CoO-MgO-Cr2O3-Al2O3 system, changes the color from blue green to dark blue. The excitation purity is higher, and the absorption peak shifts toward regions. 6) Colors are green in the NiO-MgO-Cr2O3 and CdO-MgO-Cr2O3 systems in general, but in the ZnO-MgO-Cr2O3 system brillant hue is not obtained. 70 According to the results of the colored glaze test, the spinels turn outto be stable as brilliant glaze pigment in the calcium-magnesia glaze.

• 한국세라믹학회지
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• 제45권4호
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• pp.214-219
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• 2008

The zirconia ceramics are widely used because of their excellent mechanical properties. Recently, many researches to make a colored zirconia was achieved to satisfy the individual aesthetic requirements. In this study, the synthesis of black-color spinel-based inorganic pigments which are stable above $1400^{\circ}C$ and the fabrication of black-colored zirconia using the synthesized pigments are investigated. Inorganic pigments which have spinel structure and near black color were synthesized by a solid state reaction method using a $Fe_2O_3,\;Cr_2O_3$, CoO and NiO powder as a starting materials at $1600^{\circ}C$. Most of synthesized pigments were black colored spinel phases and single spinel phase was successfully synthesized at the composition range of $Cr_2O_3:25{\sim}35%,\;Fe_2O_3:45{\sim}55%$, CoO:20% and NiO:$6{\sim}10%$. The black-colored zirconia was fabricated at $1410^{\circ}C$ with the 5 wt% synthesized pigments and their properties were evaluated. The results showed that the strength value was more than 848 MPa, absorption rate was 0.1%, the brightness of color was $L^*:40{\sim}42$, the tone of color is $a^*:0.2{\sim}0.8$ and $b^*:-1.1{\sim}2.4$. As a result, the black-colored zirconia was suitable for a artificial jewelry or decoration zirconia goods.

• Food Science and Biotechnology
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• 제15권6호
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• pp.838-843
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• 2006

The chemical processes involved in the formation of green pigment in crushed garlic cloves were investigated based on the principle of pink pigmentation in macerated onions. Intact greening and non-greening garlic cloves were either left untreated or heated at $90^{\circ}C$ for 3 min to inactivate enzyme activities. First, a colorless ether soluble compound referred to as color developer reacted with glycine (among all free amino acids) in garlic to form a second compound insoluble in ether. The latter compound then reacted with formaldehyde to yield the green colored pigment. Alliinase activity was necessary for the production of color developer and for the development of green pigment. In greening garlic that had been heat treated, green pigmentation did not proceed due to the heat-inactivation of alliinase, but the addition of alliinase solution into the garlic homogenates restored the pigmentation. However, this phenomenon was not observed in non-greening garlic with or without heat treatment. Finally, the mechanism of green pigment formation in crushed garlicis similar to that of pink pigment formation in macerated onions.

• Natural Product Sciences
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• 제13권4호
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• pp.373-377
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• 2007

Antiscratching behavioral effects of the water extract of two black colored rice (BCR) varieties [Oryza sativa L. cv. Heugjinjubyeo (HJ) and Josaengheugchalbyeo (JH)], major pigment of which is cyanindin 3-glucoside, were investigated. Orally administered BCRs' extracts exhibited potent inhibitory activity against scratching behaviors which were induced by compound 48/80 and histamine. The inhibitory effect of Josaengheugchalbyeo in vivo and in vitro were more potent than those of Heugjinjubyeo. These finding suggest that black colored rice, especially Josaengheugchalbyeo, may inhibit scratching behaviors and anaphylaxis reaction by stabilizing membrane.

• 한국식품과학회지
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• 제35권5호
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• pp.968-974
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• 2003

국내 외에서 수집 재배한 23품종 유색미의 색소 및 페놀성 화합물의 양을 측정하고 항산화성 및 항변이원성과의 상관성을 각각 비교하였다. 색소의 함량은 LK 1-3-6-12-1-1>LK ID 2-7-12-1-1>Elwee>Mutumanikam>IR 1544-38-2-2-1-2-2>wx 124-163-45-7-1-1-1, LK 1A-2-12-1-1 등의 순서로 나타났다. 폴리페놀화합물의 양은 IR 17491-5-4-3-3 품종이 현미 100g 당 0.244g으로서 가장 높은 함량을 보였으며, 그 다음은 LK 1-3-6-12-1-1>LK ID2-12-1>Elwee>Mutumanikam>IR 1544-38-2-2-1-2-2, LK IA-2-12-1-1 등의 순이었다. 유색미 품종별 색소의 함량은, 유색미 함유 생리활성 성분 중 총 폴리페놀 화합물의 함량과 높은 정의 상관성이 있었으며, 색도상의 lightness는 hydroxyl radical 소거활성과 정의 상관성이 있었으나, redness는 지질과산화 억제활성과 부의 상관성을 보였다.

• 한국식품조리과학회지
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• 제16권3호
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• pp.255-259
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• 2000

The effects of the concentrations of Gardenia blue pigments and sugar types(honey and oligosugar) on the sensory quality characteristics of starch Dasik were investigated to develop a new blue colored starch Dasik. The blueness(-b value) was increased with the increase of blue pigment, while lightness(L value) was decreased. TPA values showed that hardness, fracturability, gumminess and chewiness were increased with the increase of blue pigment significantly(p<0.05), especially in honey-Dasik. In sensory evaluation, honey-Dasik with 0.04%-blue pigment showed higher scores than any other samples, especially in color, sweetness and overall acceptability, but was not significantly different.