• The Korean Journal of Zoology
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• v.38 no.3
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• pp.417-425
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• 1995

The present study was carried out to investigate the effect of microwave fixation in comparison with that of chemical fixation in preparing the microscopic samples. The microwave fixator was equipped with infrared-temperature sensor, and that was designed to compensate air temperature in the microwave fixator. In the microwave fixation, rat tongue was well preserved in terms of muscular fasciculus and pancreas stained by Feulgen reagents showed clear reaction products in the nucleus. Reaction products by PAS method in duodenal villi appeared specifically at the goblet cells. In electron microscopy, pancreatic cellular components such as secretory granules and collagen bundles were well preserved in both fixations. In aspect of histochemical reaction and electron microscopy, high quality was due to the protein content of microwave fixed specimen. The microwave fixation method saved total duration engaging microscopic preparation.

• Journal of the Korean Society of Clothing and Textiles
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• v.26 no.3_4
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• pp.464-472
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• 2002

The aim of this study was to elucidate dyeability and antimicrobial activity of cotton fabrics dyed with Sophora Radix extracts according to various mordants. Dyes were extracted from Sophora Radix using ethanol. Then, cotton fabrics were dyed with extracts two times by post-mordanting method in which the extract was 60% (owf, the mordant was 3% (owf), L.R was 1:20, the temperature was 60~7$0^{\circ}C$, the time of dyeing was 60min., and the time of mordanting was 60min.. The dyeability was evaluated by surface color and color fastness. The skin microorganism was evaluated on S. sureus, B. subtilis, S. epidermidis, P. acnes, P. aeruginosa, E. coli, A. niger, C. albicans and T. mentagrophytes. The results are as follows; 1. When mordants were treated, surface color was 3.3Y to 0.1 GY in H (hue) value which indicated greenish yellow to yellow 2. The color fastness to perspiration, dry-cleaning, rubbing, and washing stain fabric showed 4~5 degree. The color fastness to light was improved to 4 degree by treatment of mordants. The color fastness to washing was 2 degree which was somewhat poor. 3. Cotton dyed with ethanol extracts was excellent on S. aureus, B. subtilis, S. epidermidis and p. antis. But that showed poor antibacterial activities on P. aeruginosa and E. coli such as gram negative baterials 4. Antibacterial activity of cotton fabrics dyed didn't be improved by treatment of mordant 5. Antifungal activity of cotton dyed with ethanol extracts was excellent on T. mentagrophytes. Especially, on T. mentagrophytes there was no growth of fungus during 72 hours in cotton dyed mordanting with SnCl$_2$.$_2$$H_2O$.

• Conservation Science in Museum
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• v.11
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• pp.61-72
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• 2010

This is the analysis of material dyed with Korean yellow dyes such as tumeric, amur cork tree, goldthread, gardenia, and the flowers of sophora japonica using nondestructive ultraviolet-visible and fluorescence spectrophotometry. In order to find out whether type of fabric or mordant influences analysis results, test fabrics were made using two types of fabric(silk and cotton) and dyed using three different mordants(no mordant, alum, iron). After analysis with UV-Vis reflectance spectrum on the dyed fabric, when the fabric was dyed with tumeric, amur cork tree and goldthread, the results were similar with no mordant and alum mordant, whereas there was a difference with an iron mordant. Also when the fabric was dyed using gardenia, different fabrics brought different results but there was no difference in results with mordants. On the other hand, when the fabric was dyed using the flowers of sophora japonica, there was no difference with fabrics but with mordants. After analysis with 3D-fluorescence spectrum, fabrics dyed with tumeric, amur cork tree and goldthread showed their own fluorescent spectrum with no regard to fabric and mordant; but with gardenia, there were differences with different fabrics whereas with the flowers of sophora japonica, there were differences with mordants.

• Proceedings of the Korean Fiber Society Conference
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• 2002.04a
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• pp.396-399
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• 2002

면섬유는 천연적으로 지방, 왁스, 펙틴, 단백질 등 비섬유소 물질과 천연색소를 지니고 있는데다가, 제직 시 제직성 향상을 위해 가호를 하게 된다. 그러므로, 면섬유의 염색ㆍ가공을 효과적으로 하기 위해서 발호, 정련, 표백의 전처리 과정을 거치게 된다. 이 전처리 공정은 용수를 다량 소비하고 BOD/COD등의 폐수부하가 크므로 환경부하 감소의 차원에서 용수 재사용 기술개발과 환경친화적인 조제의 사용이 바람직하다. (중략)

• Proceedings of the Korean Fiber Society Conference
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• 2002.04a
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• pp.433-436
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• 2002

형상기억재료는 형상기억효과, 회복변형효과, 형상고청효과, 진동제어효과 등의 특성으로 인하여 중요한 지능재료(smart materials)의 하나로 기대되고 있다. 형상기억 재료로는 합금, 세라믹, 고분자, 겔 등을 들 수 있지만 Ti-Ni 합금(Nitinol)이 가장 많이 이용되고 있다. 그러나 형상기억고분자는 형상기억합금에 비하여 가볍고 형상회복률이 높으며 가공이 쉽고 투명할 뿐만 아니라 염색이 가능하기 때문에 물성과 경제적인 면에서 유리하다. (중략)

• Proceedings of the Korean Fiber Society Conference
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• 2007.11a
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• pp.381-382
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• 2007

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2004.05a
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• pp.320-323
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• 2004

두가지 처리방법을 연계처리하여 실험한 결과 펜톤산화를 전처리로 적용하여 실험한 경우가 COD와 Color의 제거면에서 더 높은 처리효율을 보이고 있으며 본 연구의 실험 목적인 RFP상의 수질기준을 만족하였다. 배출수 수질 기준이 강화된 RFP상의 수질기준을 만족하기 위한 고도산화방법의 연계처리방법 중 오존산화와 펜톤산화를 조합한 결과 유기물과 색도를 고루 제거하는 펜톤산화를 전처리 공정으로 적용하고 유기물의 제거보다는 색도제거에 더 효율적인 오존처리 공정을 후처리로 둔 조합공정이 더 적합한 것으로 판단된다.

• Proceedings of the Korean Fiber Society Conference
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• 2001.10a
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• pp.171-174
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• 2001

초임계유체(supercritical fluid, SCF)는 친환경적 용매로서 고분자 합성과 기능화를 비롯하여 RESS(rapid expansion of supercritical solution)와 초임계염색 등의 섬유공정 분야에서 연구자들의 흥미로운 관심을 받아 오고 있다. 초임계유체는 기체와 액체의 중간적인 특성을 가지면서도 가스와 같이 우수한 확산력을 가지며 또한 아주 낮은 점도를 갖는다. SCF 중에서 비교적 온화한 조건(31.1℃의 임계온도, 73.8기압의 임계압력, Figure 1)에서 초임계상태를 가질 수 있는 이산화탄소가 가장 많이 이용되고 있는데 이는 자원이 풍부하며 쉽게 회수하여 사용할 수 있어 응용 면에서 유리하다. (중략)

• Journal of the Korean Society of Clothing and Textiles
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• v.26 no.10
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• pp.1401-1411
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• 2002

To Save energy and cost one bath/one step dyeing and finishing on cotton/polyester blends is carried out with disperse dyes in the presence of crosslinking agent. Cotton 100 %, cotton/polyester 70/30, 50/50, 35/65, polyester 100 % fabrics were used. wrinkle recovery angle, tensile strength retention and tearing strength retention were determined in according to the dyebath composition, and also determined while the concentration of DMDHEU, molecular weight and concentration of PEG were varied. Colorfastness to abrasion, washing and light were tested. For cotton and cotton/polyester blends dyed in the presence of DMDHEU/PEG, wrinkle recovery was improved. Tensile strength retention and tearing strength retention were decreased, in compared with dyed fabrics without DMDHEU. Colorfastness to abrasion was good but colorfastness to washing and to light were poor for the fabrics dyed in the presence of DMDHEU/PEG.

• Journal of the Korean Society of Clothing and Textiles
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• v.24 no.7
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• pp.1025-1034
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• 2000

Cotton differs from polyester in physical and chemical properties. When cotton/polyester blends are dyed, water-soluble dyes are generally used for cotton and disperse dye for polyester. Thus, two bath or one bath-two step dyeing process are usually accepted. These processes consume more energy and cost compared to a single step process. To save energy and cost, a single step dyeing and finishing is carried out with disperse dyes in the presence of a crossslinking agent. K/S values of the dyed fabrics were determined to examine the dyeing property of cotton, cotton/polyester, polyester fabrics dyed with disperse dyes in the presence of DMDHEU/PEG. The concentration of DMDHEU, molecular weight and concentration of PEG, curing time and curing temperature were varied.