• Title/Summary/Keyword: Dye effect

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SPECTRAL SENSITIZATION AND PHOTOGRAPHIC CHARACTERISTICS OF NAPHTHOTHIAZOLO CARBOCYANINE DYE

  • Kim, Yeoung-Chan
    • Journal of Photoscience
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    • v.3 no.2
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    • pp.65-69
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    • 1996
  • In this paper, it was studied about the red-sensitive layer. UV-Vis data of the dye at monomeric and J-state were considered with respect to their performance(contrast, density and fog) in photographic emulsion. The sensitizing effect of the dye is found to be strongly structuredependent. Naphthothiazolo carbocyanine dye can be used as red-sensitizing dye for the spectral sensitization of photographic emulsion.

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The Effect of Organic Solvent in the Dyeing of Silk Fiber (견섬유의 염색에 있어서 첨가용제의 영향( I ))

  • 황성민;윤남식;임용진;이동수;이인전
    • Textile Coloration and Finishing
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    • v.1 no.1
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    • pp.47-53
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    • 1989
  • The effect of organic solvent in the dyeing of silk fiber by acid dye was investigated. Acetophenone and benzyl alcohol were shown to be the most effective for the rate of dyeing of silk fiber by Milling Cyanine 5R (C.I. Acid Blue 113), a milling type acid dye, but, with benzyl alcohol, the equilibrium dye uptake was much lower than that in the absence of it. In the presence of solvent, maximum dye uptake shifted to lower temperature than 6$0^{\circ}C$, while without solvent, it was shown at about $60^\circ{C}$. When dyed by Orange II (C.I. acid Orange 7) under same condition equilibrium dye uptake of silk fiber was lower than that for milling type acid dye, and in the presence of benzyl alcohol, still much lower uptake resulted. All these fact reveals that organic solvents in the solvent-assisted dyeing of silk fiber broaden micelle spacings too much, resulting in increased rate of dyeing, and decreased equilibrium dye uptake, contrary to wool.

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Dye-resist Properties of Hetero-multifunctional Dye-resist Agents in Acid Dyeing of Wool

  • Oh Myung-Joon;Koh Joon-Seok;Kim Jae-Pil
    • Fibers and Polymers
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    • v.7 no.2
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    • pp.117-122
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    • 2006
  • The dye-resist effect and leveling properties of hetero-mulifunctional dye-resist agents in acid dyeing of wool were investigated. The dye-resist agent with dichlorotriazinyl group achieved better resist effectiveness than those with monochlo-rotriazinyl group. The resist effectiveness was improved by increasing the number of sulfonate group in dye-resist agents. Also, the resist agents with more sulfonate groups showed better dye-assist effectivness, attributable to the increased electrostatic attraction between dye-resist agents and the cationic dye. However, the leveling properties of dye-resist agents decreased with the number of sulfonate groups in the molecule.

The Effect of Combination Ratio of Dye Concentration on Black Dyeing Property of PET Fabric (분산염료의 농도조합이 PET 섬유의 Black 염색성에 미치는 영향)

  • Lee, Jeong-Jin;Kim, Hye-Rim;Jang, Hye-Gyeong
    • Proceedings of the Korean Society of Dyers and Finishers Conference
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    • 2008.10a
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    • pp.13-14
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    • 2008
  • In black dyeing of PET fabric, high concentrations of disperse dyes of three primary color are generally used, which leads low exhaustion level of dye and discharge of a large amount of unfixed dye into dyehouse effluent. In this study, the effect of combination ratio of dye concentration, liquor ratio, and dyeing pH on dyeing and color property of black dyed PET fabric was investigated.

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Dye-resist Properties of Reactive Dye-resist Agents in Reactive Dyeing of Silk

  • Park, Sung-Hee;Oh, Myung-Joon;Koh, Joon-Seok
    • Textile Coloration and Finishing
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    • v.19 no.5
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    • pp.8-16
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    • 2007
  • The dye-resist effect of reactive dye-resist agents in reactive dyeing of silk was investigated. The dichlorotriazine-based dye-resists achieved a higher effectiveness than others since they make a charge barrier of diffusion in the silk fiber periphery due to high reactivity of dichlorotriazine group. Similarly, in the case of hetero-multifunctional dye-resist agent, the dye-resist agent containing both a dichlorotriazine and an ${\alpha}$-bromoacrylamide reactive groups achieved better resist effectiveness than those containing both a monochlorotriazine and an ${\alpha}$-bromoacrylamide groups. Also, their resist effectiveness was improved by increasing the number of sulfonate groups in the dye-resist agents and the number of reactive groups in the reactive dyes applied to them.

The Effect of Low-dye Taping on Muscle Activity during Single-leg Standing in People with Flatfoot (편평발에서 Low-dye 테이핑이 한발 서기 동안 근활성도 변화에 미치는 영향)

  • Park, Min-Chull
    • Journal of the Korean Society of Physical Medicine
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    • v.8 no.4
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    • pp.533-538
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    • 2013
  • PURPOSE: This study was performed to investigate the effect of Low-dye Taping on muscle activity during single-leg standing in subjects with flexible flatfoot. METHODS: Thirteen able-body volunteers who had flexible flatfoot were recruited for this study. Subjects were measured navicular drop test to evaluate pronation of foot and muscle activity during single-leg standing before and after taping. The muscle activity was recorded using surface EMG from the tibialis anterior and the peroneus longus during single-leg standing on stable and unstable surface. RESULTS: The results show that the navicular drop height and the tibialis anterior muscle activity were significantly decreased after Low-dye taping. CONCLUSION: The results suggest that Low-dye taping could be useful in managing overuse of the tibialis anterior by reducing their level of activation during single-leg standing.

Laboratory Evaluation of the Marking Effect of Sudan Red 7B on Subterranean Termites (Reticulitermes speratus) in Republic of Korea

  • IM, Ik-Gyun;HAN, Gyu-Seong
    • Journal of the Korean Wood Science and Technology
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    • v.48 no.5
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    • pp.745-754
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    • 2020
  • The dye marker Sudan Red 7B was tested as an effective and appropriate marking method for searching the territory of the termite, Reticulitermes speratus, in Korea. The sensitivity of termites to the dye marker was evaluated by measuring the feed consumption amount, survival rate, retention time, and transfer efficiency of R. speratus according to the concentration and feeding period of Sudan Red 7B. As the concentration conditions of dye marker increase, Sudan Red 7B remarkably reduced the feed consumption of the termites. The survival rate was not significantly different from that of the control group (more than 90%), except when feed containing 1% or 2% concentrations of the dye marker was given for five days. The duration of the marking effect persisted for seven days, even at a concentration of 2% dye marker in the feed. No dye transfer by trophallaxis occurred between termites marked with Sudan Red 7B and unmarked termites.

Dyeability and Functionality of Chaenomelis Fructus Extract (모과 추출물의 염색성과 기능성)

  • Nam, Ki-Yeon;Lee, Jung-Soon
    • Fashion & Textile Research Journal
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    • v.14 no.3
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    • pp.478-485
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    • 2012
  • The dying properties of fabrics with Chaenomelis Fructus extract were studied through an investigation of the characteristic of Chaenomelis Fructus colorants, the effect of dyeing conditions (dye temperature, dyeing concentration, and times on dye uptakes), effect of mordant, effect of UV irradiation, and color change in addition, antimicrobial ability and deodorant ability were estimated. In the UV-Visible spectrum, the wavelength of maximum absorption of Chaenomelis Fructus extract was 280 nm and showed that tannin is the major pigment component. From the increase of absorbance by UV irradiation, it was assumed that catechol tannin color was developed through UV irradiation. An increased dyeing concentration resulted in a larger dye uptake. Dye uptake increased as the dyeing time and temperature increased. Chaenomelis Fructus extract showed relatively good affinity to silk than cotton. Mordant, Fe and Cu were effective to increase the dye uptake of cotton fabric in addition, the dye uptake of silk fabric mordanted with Fe and K improved. UV irradiation let the color of dyed fabrics develop regardless of the UV irradiation stage however, UV irradiation on the dyed fabric was more effective than on the extract for the color development. Dyed silk fabric showed very good antimicrobial abilities of 99.9% in addition, deodorant ability improved in the fabric dyed with Chaenomelis Fructus extract.

Effect of Dye Wastewater on Heavy Metal Removal using Carboxylated Alginic Acid Bead (Carboxylated alginic acid bead를 이용한 중금속 제거에 대한 염료폐수의 영향 연구)

  • Jeon, Choong
    • Journal of the Korea Organic Resources Recycling Association
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    • v.17 no.4
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    • pp.74-80
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    • 2009
  • Effect of dye wastewater on heavy metal removal using carboxylated alginic acid bead was performed. When carboxylated alginic acid bead was used as support, effect of dye wastewater on adsorption of $Pb^{2+}$ and $Cu^{2+}$ ions was very small. Also, when $Pb^{2+}$ was coexisted with dye wastewater, adsorption process was almost completed within 2-3 hrs and $Pb^{2+}$ ions (50 ppm) was almost removed with 0.3g of bead. This result means that carboxylated alginic acid bead has effective adsorbent for heavy metal removal in dye wastewater.

The Effect of Acetophenone on the Dyeing of Silk (견섬유의 염색에 있어서 아세토페논의 영향)

  • 김태경;임용진;박태수
    • Textile Coloration and Finishing
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    • v.10 no.5
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    • pp.56-62
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    • 1998
  • In the prior study, the dyeing behaviors of Milling Cyanine 5R on silk fiber in aqueous dyeing liquor including small amount of organic compounds were investigated. The most effective compound was acetophenone which increased dye uptake as well as dyeing rate. In this study, the role of the acetophenone in dyeing of silk with Milling Cyanine 5R was studied. By addition of acetophenone into the dye solution, the molar absorptivity of Milling Cyanine 5R increased, and the wavelength of maximum absorption was shifted to longer wavelength, namely bathochromic shifted. This shows that the acetophenone prevents the dye to aggregate, and increases the number of monomeric dye molecule relative to the dye solution without acetophenone. This fact was also confirmed by the increase of the permeation rate of the dye through cellulose semipermeable membrane from the dye solution including the acetophenone. From these results, the acetophenone acts as a prohibitor of dye aggregation, increases the number of monomeric dye molecules even at relatively low temperature, and makes the dyes penetrate into the fiber easier.

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