• Title/Summary/Keyword: Black color

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Characteristics of Artificially Soiled Fabrics Containing Ferric Oxinate as a Tracer (Ferric Oxinate를 標職物質로 사용한 人工汚染布의 洗滌特性)

  • Ahn, Kyung Cho;Kim, Sung Reon
    • Textile Coloration and Finishing
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    • v.8 no.1
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    • pp.83-89
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    • 1996
  • Carbon black has been used as a particulate soil to prepare artificial soiled fabrics for detergent study but it has two major defects. The one is the difficulty of quantitative analysis of carbon black for evaluate the detergency, the other is that there is no reliable correlation between the removal of carbon black and oily soil which is the major component of natural soil. In this study ferric oxinate was used as a particulate soil since it is in black color and can be soiled on fabric by suspension in water or by solution in chloroform and it is easily analysed quantitatively by extracting it from soiled fabric with chloroform to get correct value of soil removal. The characteristics of soil removal of ferric oxinate were compared with that of carbon black and Sudan black, an oil soluble dye, which had been proved that it's detergency correlated with that of oily soil The soil removal of ferric oxinate and Sudan black estimated from quantitative analysis and from K/S value were in good agreement whereas the result calculated by simple reflectance was consistently low. The soil removal of ferric oxinate was exceeded from that of carbon black without regard to surfactants, Triton and Las, but the effect of washing conditions such as temperature and washing time on soil removal of both soils with different suffactants showed no considerable difference. Though the soil removal of Sudan black was little effected by the conditions, the soil removal in Triton exceeded considerably that of in Las, which is the characteristic of oily soil. Thus the soil removal of Sudan black was in good agreement with ferric oxinate in Triton, a non-ionic surfactant, and with carbon black in Las, an artionic surfactant. We concluded that ferric oxinate is a more realistic model particulate soil for artificial soiled cotton fabric washed with non-ionic surfactant than carbon black.

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Comparison of innerwear color preference among the Korea, China and Hong Kong (한국, 중국과 홍콩 성인여성의 속옷 선호색상 비교 연구)

  • Cha, Sujoung
    • Journal of Fashion Business
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    • v.16 no.5
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    • pp.106-113
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    • 2012
  • This study intend to research color preferences about innerwear(specially brassiere) and draw a comparison of color preference's differences among the Korea, China and Hong Kong. The subjects of study are female students of universities in Korea, China and Hong Kong. The data analysis was done with the statistical treatment in SPSS 14.0, and the results are as follows. Female students of universities in Korea, China and Hong Kong are distinguished from wearing color and preference color of innerwear. Korea and China female students prefer skin color to the other color but most of Hong Kong female students prefer black color. In case of red color, Korea female students don't select a red color as a preference color but even if some students select a red color, China and Hong Kong females prefer a red color. The traditional color opinions of Korea, China and Hong Kong are the same as a Yin-Yang School. But these days they have different color opinions because of cultural, political and ideological elements. Korea females like skin and white colors because these colors don't appear on the outwear surface. Korean have an inclination toward conservatism and use the color according to ideological and deceptive orders of the Confucianism. Hong Kong have a different color preference from China because they have chances of receiving the other cultures for example United Kingdom, Japan and so on.

Color effect of the environment-friendly sinker for octopus drift-line (문어흘림낚시용 친환경 봇돌의 색 효과)

  • An, Young-Il
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.45 no.3
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    • pp.144-150
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    • 2009
  • The choice behavior of the octopus in response to the environment-friendly colored sinker for octopus driftline and the sinker's fishing effect were studied under experimental conditions in the water tank and the field. The colors of the sinkers used for the experiment are white, black, yellow and green. Artificial baits are attached to the sinkers in order to attract the octopuses in the experiment. In the water tank experiment, two sinkers of two different colors are placed in a compartmentalized corner of the rectangular tank, and a CCD camera records the choice behaviors of the octopuses to the colored sinkers. In the field experiment, the catch investigation of octopus for each colored sinker was conducted 14 times in total by using 2(A, B) commercial fishing boats at the coast of Gangneung within 30m of depth in 2006. The number of colored sinkers per operation was a total of 24-40 pieces with the same number of sinkers individually for four colors. As a result, it was found that the octopus selected white the most followed by black and yellow in their choice of colored sinkers in the water tank experiment, and green was the lowest in their choice. Even in the field experiment, the sinkers of white and black showed a higher catch of octopus than the sinkers of yellow and green.

Relationships between Muscle α-Tocopherol Concentrations and Metmyoglobin Percentages during Display of Six Muscles of Japanese Black Steers

  • Muramoto, T.;Shibata, M.;Nakanishi, N.
    • Asian-Australasian Journal of Animal Sciences
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    • v.17 no.7
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    • pp.1014-1018
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    • 2004
  • Relationships between muscle $\alpha$-tocopherol oncentrations and metmyoglobin percentages during display of six muscles, m. serratus ventralis (SV), m. psoas major (PM), m. gluteus medius (GM), m. semimembranosus (SM), m. semitendinosus (ST) and m. longissimus lumborum (LL), of Japanese Black steers slaughtered at 28 months of age were studied. Steers were supplemented with 0, 2,000 and 4,000 mg $\alpha$-tocopheryl acetate/head/day for 28 days prior to slaughter in the VE 0, the VE 2,000 and the VE 4,000 groups, respectively. $\alpha$-Tocopherol concentrations in PM, GM, SM, ST and LL of the VE 2,000 and the VE 4,000 groups were significantly (p<0.05) higher than those of the VE 0 group. There were no significant (p>0.05) differences in $\alpha$-tocopherol concentrations in all muscles between the VE 2,000 group and the VE 4,000 group. The muscle $\alpha$-tocopherol concentrations ($\ell$/g meat) which can retard metmyoglobin formation in muscles were estimated to be 5.3 for SV, 4.5 for PM, 4.2 for GM, 4.0 for SM, 3.6 for ST and 3.5 for LL. The equation to predict color-shelf-life of each muscle from the $\alpha$-tocopherol concentration in each muscle could be obtained.

Development of a Fruit Grader using Black/White Image Processing System(I) - Determining the Size and Coloration - (흑백영상처리장치를 이용한 과실선별기 개발에 관한 연구(I) - 크기 및 색택 판정 -)

  • Noh, S.H.;Lee, J.W.;Lee, S.H.
    • Journal of Biosystems Engineering
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    • v.17 no.4
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    • pp.354-362
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    • 1992
  • This study was intended to examine feasibility of sizing and color grading of Fuji apple with black/white image processing system, to develop a device with which the whole surface of an apple could be captured by one camera, and to develop an algorithm for a high speed sorting. The results are summarized as follows : 1. The black/white image processing system used in this study showed a maximum error of 1.3% in area measurement with a reference figure while the focusing point of camera and location of the reference figure were changed within a certain range. 2. As the result of evaluating four automatic image segmentation algorithms with apple images, Histogram Clustering Method was the best in terms of computation time and accuracy. 3. The fast algorithm for analyzing size and coloration of apple was developed. 4. The whole surface of an apple could be captured in an image frame with two mirrors installed on the both sides of the sample. The total area of the image representing the whole surface showed a correlation of 0.995 with the weight of apple. 5. The gray level when a particular band pass filter was mounted on the camera showed high correlation with 'L' and 'a' values of Hunt color scale and could represent the coloration of apple.

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Novel Coloration of Cotton Fabrics by UV-induced Phtografting of Reactive Black 5 and Acrylic acid

  • Dong, Yuanyuan;Jang, Jin-Ho
    • Textile Coloration and Finishing
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    • v.23 no.1
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    • pp.11-20
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    • 2011
  • UV-induced surface copolymerization has been widely applied as a simple, useful and versatile approach to improve the surface properties of textiles. C.I. Reactive Black 5 and acrylic acid (AA) were continuously grafted onto cotton by UV irradiation. The photografting may occur by the copolymerization of AA with the vinylsulfone reactive dye which photochemically converted from the bissulfatoethylsulfone reactive group. The graft yield and color yield were influenced by UV energy, the dye and photoinitiator concentrations, a mole ratio of AA to dye, and pH. The coloration of cotton fabrics having a K/S of 7.0 can be obtained under a UV irradiation energy of 15$J/cm^2$ by the photografting of an aqueous alkaline formulation of 6% dye concentration containing 3% photoinitiator concentration on the weight of monomers, and a 3:1 mole ratio addition of AA to the dye. Furthermore, the photochemically dyed cotton fabrics showed comparable washing (staining) and rubbing fastness to conventional reactive dyeing method except shade change in the wash fastness and light fastness.

Photoinitiator-free Photo-reactive Coloration of Wool Fabrics Using C.I. Reactive Black 5

  • Dong, Yuanyuan;Jang, Jin-Ho
    • Textile Coloration and Finishing
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    • v.24 no.2
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    • pp.97-105
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    • 2012
  • Compared with conventional adsorption-based coloration, the photoreactions of dyes such as photo-copolymerization and photo-crosslinking under UV irradiation can be employed for the coloration of textiles, which can be carried out without salt addition at room temperature. C.I. Reactive Black 5, a homo-bifunctional reactive dye containing two sulfatoethylsulfone groups, is used as a photo-reactive dye for wool fibers. Upon UV irradiation, the photo-reactive dye was grafted onto wool fabrics without photoinitiators. Since the disulfide bonds in the cystine residues of wool can be easily photodecomposed to active thiyl radicals which initiate the polymerization, the dye can be polymerized to an oligomeric dye of a degree of polymerization of 12 or more. The grafted fabrics reached a grafting yield of 2.3% o.w.f. and a color yield (K/S) of 18.2 by the photografting of an aqueous dye concentration of 9% using a UV energy of 25J/$cm^2$. Furthermore, the photochemically dyed wool fabric showed higher colorfastness properties to light, laundering and rubbing comparable to conventional reactive dyeing.

Identification of Hanwoo and Holstein meat using MGB probe based real-time PCR associated with single nucleotide polymorphism (SNP) in Melanocortin 1 receptor (MC1R) gene (소 모색관련 MC1R 유전자의 SNP와 관련한 MGB probe에 기초한 real-time PCR을 이용한 한우육과 Holstein육의 판별)

  • Park, Sung-Do;Kim, Tae-Jung;Lee, Jae-Il
    • Korean Journal of Veterinary Research
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    • v.45 no.1
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    • pp.25-28
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    • 2005
  • The melanocortin 1 receptor (MC1R) plays an important role in regulation of melanin pigment synthesis within mammalian melanocytes. Mutations within the gene encoding MC1R have been shown to explain coat color variations within several mammalian species including cattle. To develope a rapid and accurate method for the identification of Hanwoo meat, we performed a single nucleotide polymorphism (SNP) analysis in Melanocortin 1 receptor (MC1R) gene using TaqMan$^{(R)}$ MGB probe-based real-time PCR. Two specific probes (one for Hanwoo and the other for Holstein and Black angus) were designed. At the 5' end of 2 TaqMan$^{(R)}$ MGB probes, 6-carboxyfluorescein (FAM) was labeled for Hanwoo, and VIC for Holstein and Black angus. As a result, Hanwoo samples showed FAM-positive signal only, whereas other samples showed VIC-positive. This result suggests that the TaqMan$^{(R)}$ MGB probe based real-time PCR technique would be very accurate, easy and reproducible method to discriminate between Hanwoo meat and Holstein/Black angus meat.

Preparation and Quality of Uncooked-Colored Wine Using Black Rice (흑미를 이용한 무증자 유색주의 제조와 품질)

  • 김순동;김미향;함승시
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.29 no.2
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    • pp.224-230
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    • 2000
  • In order to study the quality of uncooked-colored wine by using polished black rice(PBR) and glucoamylase, the mixture ration of PBR ws investigated. The growths of yeast and lactic acid bacteria, pH and alcohol concentration of the colored wine prepared by adding PBR in the range of 20 to 100% were higher than those of polished rice only, whereas the contents of residual sugars, total free amino acids and fusel oil of the colored wine were lower. The colored wine prepared by 20% PBR and that of over 80% PBR showed a light red color and a dark red, respectively. The optimal addition ratios of PBR evaluated by palatability of color and flavor, and sensory overall quality was 40 to 60%.

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Commercial Application of Porcine MC1R Gene Polymorphisms to Korean Pork Industry (돼지 MC1R 유전자변이의 양돈산업 적용)

  • Ha, You-Kyoung;Choi, Jung-Suk;Kim, Sang-Wook;Choi, Yang-Il;Lee, Seug-Soo;Choi, Jae-Won;Jeon, Soon-Hong;Kim, Kwan-Suk
    • Journal of Animal Science and Technology
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    • v.51 no.3
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    • pp.193-200
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    • 2009
  • The pork from black-coated pigs is famous among-consumers for better eating quality. The loci affecting black coat color was identified in pig chromosome 6 in which several genetic effects on pork quality have been reported. The melanocortin 1 receptor (MC1R) gene is a major gene which plays a key role in regulation of eumelanin (black/brown) and phaeomelanin (red/yellow). In this study, the MC1R gene polymorphism was analyzed for pig breed determination and genetic association with pork quality traits. MC1R Ala243Thr variation was analyzed to determine a specific genotype for four commercial pig breeds (Landrace, Yorkshire, Berkshire and, Duroc) and a Korean native pigs (KNP). Then we developed original KNP-specific DNA markers to determine the pork from black-coated pigs using MC1R DNA sequences. The total length of the MC1R coding sequence ranged 1451bp in KNP. KNP had the 0201 allele pertaining to $E^{D1}$ but some of the KNP had the $E^P$ allele, probably reflecting the geneticintrogression of $E^P$ allele into KNP. Furthermore, a relationship between Leu102Pro single nucleotide polymorphism (SNP) genotype and pork quality phenotype were analyzed in F2 reciprocal-crossbred population between KNP and Yorkshire. Association analysis indicated that the allele of the MC1R gene has no effect on pork quality. These results suggest that black coat-color is not directly associated with preferred pork quality, but the black-coat color pig breed may have other genetic components for superior pork quality.