Proceedings of the Korean Society of Dyers and Finishers Conference (한국염색가공학회:학술대회논문집)
The Korean Society of Dyers and Finishers (ksdf)
- 월3회간
Domain
- Chemical Engineering > Dyeing and Finishing
2008.04a
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The quinolone antibiotics Ciprofloxacin shows broad antimicrobial spectrum, heat stability, limited water solubility, and similar structure and size to disperse dyes. The object of this study is to develop the infection-resistant medical extile material by applying Ciprofloxacin to a series of polyester materials such as PET, PDO, PLA, and PGA. All the Ciprofloxacin compound polyester materials demonstrated the superior antimicrobial activity to the organisms S. aureus and E. coli.
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신발 및 피혁 제품의 분쇄는 섬유의 길이와 물리적인 특성을 고려하여 3
${\sim}$ 4mm 정도의 섬유 길이로 절단되는 Niagara beater가 우수하였고, 섬유간 접착력을 부여하는 Binder 물질로는 NR latex와 EVA emulsion이 인장, 인열강도가 우수하여 NR latex와 EVA emulsion이 7:3의 비율로 혼합하여 사용하는 것이 가장 좋은 결과를 나타내었다. 또한 코팅 처리된 신발 재단 폐기물의 경우 Niagara beater에 Alcalase를 투입하는 것이 분쇄시간의 단축에 유리한 경향을 나타내었고, 건조 공정은 90$^{\circ}C$ 이하로 유지하는 것이$^{\triangle}$ E값의 변화가 거의 없었고 100$^{\circ}C$ 에서는$^{\triangle}$ E값이 7.55를 나타내어 황변이 발생하였다. -
Son, Song-Lee;Jang, Gyeong-Jin;Jeong, Jong-Seok;Kim, Tae-Gyeong;Gwon, O-Gyeong;Choe, Yeong-Hui;Jeong, Yeong-Han 25
The optimum extraction conditions of green tea used for a bath were investigated for later application to textile. The extraction was more effective in water and methanol than in ethanol. The optimum extraction temperature was determined as 80$^{\circ}C$ in water and 60$^{\circ}C$ in methanol. The extracts were more stable in acid and neutral conditions than in alkaline region. The UV satbility was better than generally expected. From the analysis of contents of active ingredients, the about 20% of effective catechin was appeared to be contained in the extract solid. The contents of polyphenol is 0.016g in the 0.1g extracts. -
Poly(ethylene oxide)(PEO) of molecular weight of 300,000 was crosslinked by exposure to UV irradiation. Photochemical crosslinking of PEO occurred by UV irradiation and the presence of benzophenone in the film which acts as a hydrogen-abstracting agent. Percent conversion of the polymer into gel as well as water absorbency were investigated gravimetrically. Gel fraction and water absorbency of PEO films increased with increasing UV energy. In case of photocrosslinked PEO films with benzophenone, gel fraction increased up to about 90%. The thermal behavior of crosslinked PEO films was studied by thermogravimetric analysis. The maximum decomposition temperature increased with increasing UV energy and benzophenone concentration.
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The study related that Red Phosphorus is surface coated by Al(OH)
$_3$ using the proportion 1:1, 1:3, 1:5 respectively, and then take the coated red phosphorus as the core material, at the same time, use Melamine-Formaldehyde resin as the capsule materials for microcapsule processing. According to the TG analysis, the coated red phosphorus with the proportion 1:3 has the tiptop temperature of thermal decomposition, it reaches 376.20^{\circ}C$$ . The same to the ratio of burning incomplete carbon it reaches 26.5%. The lowest moisture absorption ratio of the red phosphorus that used coated red phosphorus for microcapsule processing can reach 0.5% with the condition that thermal decomposition temperature decline 3.6%. -
Jeong, Jong-Seok;Jang, Gyeong-Jin;Son, Song-Lee;Kim, Tae-Gyeong;Yun, Seok-Han;Kim, Mi-Gyeong;Hong, Jin-Pyo 34
The several monoazo red dyes having different alkyl substituents were synthesized to dye unmodified polypropylene fiber. The affinity of the dyes onto unmodified polypropylene was increased with the increase of the length of alkyl substituents. Therefore, the hexyl-substituted dye having the longest alkyl group in this experiment showed very high color strength of dyeings with K/S value of over 28 at maximum adsorption wavelength. The color fastnesses of washing, light, rubbing and sublimation were also improved significantly for the longer alkyl substituted dyes. -
The purpose of this study is to improve the defects of DPP fabric by heat setting and to describe the change of physical properties of DPP fabrics. The thermosetting was carried out in autoclave from 100 to 140
$^{\circ}C$ temperature range for 10min.. In this study, we investigated the effect of the thermosetting temperatures on the structural, thermal, mechanical properties and dyeability of DPP fabrics. The melting peak of multi peak changed to single peak with an increased thermosetting temperatures. The melting energy(J/g), the tensile strength and elongation were found to increase with increasing temperature of heat setting. The diffraction peak at Bragg angle(2${\theta}$ ) about 13.8$^{\circ}$ were very strong, and diffraction intensity, d-spacing and half-width decreased with increasing thermosetting temperatures. On the other hand, the dyeability(K/S) and crease recovery decreased with an increasing thermosetting temperatures. -
Park, Seong-U;Jang, Bong-Sik;Hwang, Jong-Ho;Gu, Gang;Kim, Seung-Jin;Min, Mun-Hong;Choe, Hyeon-Seok;Yu, Si-Yeol 43
Fabrics shrinkage are affected by weaving conditions and are very difficult to be estimated when the amount of fiber consumption and production are calculated. Therefore, we need to standardize fabric shrinkage according to various weaving conditions. To develop the new textile products, we collected and analysed data of fabric shrinkage with the weaving conditions including twisting and covering process and denier of yarns used. -
Park, Seong-U;Jang, Bong-Sik;Kim, Chi-Heon;Hwang, Jong-Ho;Gu, Gang;Kim, Seung-Jin;Min, Mun-Hong;Choe, Hyeon-Seok 46
Fabrics shrinkage are affected by weaving conditions and are very difficult to be estimated when the amount of fiber consumption and production are calculated. Therefore, we need to standardize fabric shrinkage according to various weaving conditions. To develop the new textile products, we collected and analysed data of fabric shrinkage with the weaving conditions including fabric density and woven structure, tension, and machinery used. -
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본 연구는 diester계 커플러를 이용하여 phthalimide계 신규 분산 염료를 합성하였다. 대부분의 염료들은 4급 이상의 염착률을 보였고 견뢰도 평가에서는 alkali조건에서 multi-clearable dye가 되므로 세탁견뢰도는 염료 3과 5가 4-5급의 우수한 견뢰도를 가지며, 습.마찰견뢰도는 염료 2 및 6이 가장 우수하였다.
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본 연구에서는 신규원사인 Rayonmimetics(RMM) 섬유를 상품화 된 분산염료를 가지고 염색하여 PET 섬유와 비교하였다. RMM 섬유의 염착률은 기존 PET 섬유와 비슷하였으나, critical adsorption range는 10
$^{\circ}C$ 정도 낮았다. Colorimetric properties를 비교해 보면, a${\ast}$ 값과 b${\ast}$ 값에서 color에 따른 경향성을 보이며, PET 섬유와 대비하여 duller 해졌다. 견뢰도는 PET 섬유와 비슷한 견뢰도를 보였다. -
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자동차에는 많은 고무제품이 사용되고 있으며 이들 중에 호스는 자동차의 여러부위를 연결하며 각종 유체 및 가스를 수송하는 역할을 담당하고 있다. 자동차 호스용 보강사로 사용되어지기 위해서는 열수축률이 작고 denier의 변화가 적으며 loop의 형상이 안정적이어야 한다. 본 연구에서는 자동차 호스용 보강사의 파열압력을 증강시키기 위한 섬유보강사의 ATY 조건과 열고정 조건을 변화시켜 사의 물성을 측정하고자 한다.
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Manufacturing and Antibacterial Characteristics of Non-woven Fabrics Including Nano-silver ParticlesThe functional non-woven fabrics have been applied in various industry fields, such as clothing, hygiene, environment, medical and so forth. The functional non-woven fabrics were manufactured by meltblown and finishing processes. These functional non-woven fabrics were made of 2,000ppm nano-silver resin composite and polypropylene resin. Silver is one of the most universal antimicrobial substances. Nano-technology enables us to expand the surface area of silver particles markedly. Nano-silver particles were successfully produced less than 10nm in size. The functional non-woven fabrics including nano-silver particles showed excellent antibacterial activities against Staphylococcus aureus(ATCC 6538) and Klebsieila pneumoniae (ATCC 4352). From the results, nano-silver particels probably will be available as a good and safe antibiotic alternative.
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Shosenji, Hideto;Mori, Hironori;Choi, Young-Ho;Kuwahara, Yutaka;Sawada, Tsuyoshi;Ihara, Hirotaka;Choi, Hyun-Hok 71
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The hydrolyses of ten VS dyes were examined at 40
$^{\circ}C$ , 50$^{\circ}C$ , and 60$^{\circ}C$ and the kinetic parameters were estimated. The values of free energy, enthalpy and entropy of hydrolysis and reaction with cellulose for VS dyes were calculated. The linear relationship exist between the enthalpy and entropy. The structure and entropy of VS dyes gave a effect on the dimerization for VS reactive dyes. The VS dyes have small value of entropy were formed dimer. It was confirmed that no dimer form for m-substituted VS dyes. There were similarities among various reactions including homo- and mixed dimerization. -
Polynitro fullerenes were synthesized by reaction C-60 in benzen solution with a mixture of NaNO
$_2$ and HNO$_3$ . Hydrolysis of polynitro fullerenes in aqueous NaOH gave the corresponding polyhydroxylated fullerenes. Sulfonation reaction was carried out in pyridine solution of ClSO$_3$ H. Infrared spectra of the resultant fullerene derivatives showed the characteristic IR bands, corresponding to absorptions of O-H, N-O, and SO$_3$ Na functions. Electric resistivity and thermal transmittance of wool fiber absorbed with the water-soluble C-60 were investigated. Thermal transmittances of wool fiber were increased with increasing water-soluble C-60 concentrations, but electric conductivity were decreased with raising water-soluble C-60 uptake values. -
The distributions of 3 disperse dyes with different molecular structures among polyurethane (PU) and polyester (PET) in dyeing PET-PU blend and which dye structure contaminated less PU portion were studied. The amounts of dyes left substrates after reduction clearing and washing were measured to prove which dye structure had an effect on improving washing fastness. Disperse dye with high molecular weight showed similar distribution onto PU and polyester by dying both substrates with similar rate and less contamination to polyurethane while other dyes distributed to PU faster than to PET had.
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Dyeing and fastness properties of direct spun type PET microfiber have been compared with those of regular PET fiber and PET-Nylon conjugated microfiber. The dye uptake of finer microfibers commenced at lower temperatures and showed faster rate of dye uptake. The build-up and wash fastness properties of disperse dyes on direct spun type PET microfiber were relatively better than split type PET-Nylon microfiber.
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Dyeing and fastness properties of direct spun type PET microfiber velvet woven fabric have been compared with those of regular PET velvet woven fabric. They showed different exhaustion and rate of dye uptake. The build-up properties of disperse dyes on direct spun type PET microfiber velvet woven fabric were relatively poor than regular PET velvet woven fabric. The wash fastness properties of disperse dyes on regular PET velvet woven fabric were similar to direct spun type PET microfiber velvet woven fabric.
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In this study eco-friendly wax remover for printing table of flat screen was investigated. Seven organic solvents, diethylene glycol monomethyl ester, triethylene glycol monomethyl ester, triethylene glycol monobutyl ester, tripropylene glycol monomethyl ester, dimethyl sulfoxide(DMSO), trichloro ethylene(TCE), tolune, were used as resin wax remover. The resin wax solubility with solvents was investigated. DMSO was found to be the most suitable eco-friendly resin wax remover.
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Natural indigo dye was prepared by extracting from Polygonum tintorium, precipitating with calcium hydroxide, and dried. Dyeing was carried out using sodium hydrosulfite as a reducing agent for the prepared natural indigo powder. K/S value, color property, and colorfastness of dyed fabrics were investigated. Optimum dyeing conditions obtained were 60
$^{\circ}C$ , 20min. Regardless of indigo dye and sodium hydrosulfite concentration, Munsell hue of dyed fabrics was PB color. Compared to the dyed fabric with both sodium hydroxide and sodium hydrosulfite, those with sodium hydrosulfite only showed higher color strength(K/S value). Colorfastness of dyed fabrics showed high rating except of wash/dry cleaning fastness of silk fabrics dyed low color strength. -
Dyeing properties of the colorants extracted from pomegranate hull on hair were investigated to study its efficay of natural hair coloring dye. Effect of dyeing condition and mordanting on dye uptake, color change and colorfastness were explored. In addition, tensile strength retention is measured and the surface of the hair was observed by SEM. The water extracted pomegranate hull was concentrated and freeze-dried for preparing colorant powders. It was considered that ionic bonding was involved in the adsorption of pomegranate colorants to hair. Pomegranate hull colorants produced greyish brown colors on hair and the hair mordanted with Fe showed dark brown color. Mordant except Fe did not significantly increased dye uptake. Mordant except Cu increased light fastness, mordant except Cr increased washing fastness. SEM to observe the hair is damaged by ultraviolet light and cleaning. This is consistent with the results of tensile strength retention. From the results of colorfastness th washing and light, it was concluded that colorants from pomegranate hull can be need as a semi-permanent natural hair coloring dye.
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본 연구에서는 균일한 난연성능을 지닌 산업용 난연시트 제조 기술 개발을 목적으로, 제조공정 제어와 함께 친환경 난연제를 개발하였다. 기존 난연시트 제조과정에 산발적으로 나타나는 낮은 방염성능이 기모공정에 원인이 있음을 알고 기모촉진제 및 기모에 의한 물리적 화학적 결합력의 변화에 대하여 조사하였다. 그 결과 기모촉진제화 난연제간 혼화성은 문제가 없지만 기모촉진제 처리 후 시료표면의 소수성과 기모에 의한 물리적 구조의 변화가 난연제의 흡착을 방해함을 알 수 있었다. 따라서 기모공정과 난연공정 사이에 수세공정 첨가의 영향, 난연공정 온도변화의 영향, 그리고 염색과 동욕에서 난연제를 처리하는 방법으로 제조공정을 변화하여 균일한 난연성능 구현의 가능성을 조사하였다.
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In this study, for natural leather use, the phytoncide oil of antibacterial materials was encapsulated in several micro-diameter shell which slowly releases from the leather treated with antibacterial microcapsules. The microcapsule was synthesized by in-situ polymerization of urea and formaldehyde. The effects of surfactants on the average particle size and distributions, morphologies and antibiosis were investigated to design microcapsule.
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Poly(
${\varepsilon}$ -caprolactone) nanocapsules(nanoPCL) containing phytoncide oil were synthesized by emulsion diffusion method using ethyl acetate as organic solvent. The influence of the degree of hydrolyzation of poly(vinyl acohol) used as an emulsion stabilizer, and the different weight ratio of core material to wall material on the particle size, morphology, and emulsion stability was investigated to design nanocapsules. The encapsulated nanoPCL were characterized by FT-IR spetrometry, Scanning electron microscope, Differential scanning calorimetry, and Thermogravimetry analysis, respectively. -
This study was investigated for the dyeing properties of silk fabrics with Annatto Extract. The dye stuff was extracted by distilled water at 60
$^{\circ}C$ , 10minutes, 100:1 of bath ratio. The highest K/S value was showed at 25% dye concentration, 60minutes of dyed time at 50$^{\circ}C$ in the temperature. The post mordant conditions were better than that of pre mordant, especially post-Fe mordant showed highest K/S value. The laundering fastness was relatively good by Cu-mordant. Drying cleaning fastness appeared 4-5 grades. -
Jeong, Jong-Seok;Jang, Gyeong-Jin;Son, Song-Lee;Kim, Tae-Gyeong;Yun, Seok-Han;Kim, Mi-Gyeong;Hong, Jin-Pyo 120
Relationship between hydrophobicity of dyes and affinity onto pure polypropylene fibers has been analyzed by using the molecular descriptor as a method to predict chemical and physical characteristics of compounds. Hydrophobicity of newly synthesized red dyes calculated by LogP which is one of molecular descriptors was increased continuously as the length of alkyl substituents increased. The dyeability onto polypropylene fibers was increased as LogP of the dyes increased and was very high when the hydrophobicity is over 6. -
The heating process for coloration of persimmon extracts was examined instead of the general light irradiation method. The raw and fermented persimmon extracts were investigated in terms of the coloration phenomena onto cotton fabrics at various conditions. For both extracts, the color strength of fabrics was increased with the increase of coloration temperature, time and concentration of the extracts. The color fastness to washing was excellent for both color change and staining showing a rating of 5.
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In order to design the dyeing process of polyester fibers at low liquor ratio the levellness of dyeings were investigated at various temperature-raising time. The levellness was analysed by a regression method using the first order equator y=y
$_0$ +ax. The a values can be considered as a sensitivity of levellness to temperature-raising time(heating rate). As a result, higher a value was obtained for a lighten fabric. -
본 연구는 고 세탁견뢰도를 가지는 신규 Phthalimed계 염료를 합성하고, 일반 PET 섬유 및 해도형 PET에 염색하여 염색거동과 견뢰도 특성에 대해 알아보았다. 대부분의 염료는 4급 이상의 세탁견뢰도를 가지며, 몇 가지 염료는 90%이상의 염착률을 가진다.
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PVA films with 1,2,3,4-Butanetetracarboxylic acid(BTCA) and sodium hypophosphite monohydrate(SHM) were crosslinked via thermal curing. Different parameters affecting on the crosslinking were investigated including BTCA and SHM concentration, curing temperature and time. The cured films was extracted with boiling water and gel fraction was calculated from weight change of the PVA films. Moisture regain of the gelled films was also measured. While the gel fraction of PVA films increased with increasing curing temperature and time, moisture regain decreased. Water resistance of the crosslinked PVA films improved by the BTCA crosslinking treatment.
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현재 현수막의 코팅에서 기능을 부여하는 수요가 늘고 있다. 본 실험에서는 코팅제의 유기용제 사용으로 인한 환경오염 문제및 폐기물 처리비용 부담을 줄이기 위하여 수성코팅제를 개발하려한다. acryl binder, 탄산칼슘, silica, 유화제등을 혼합한 코팅제를 knife coating한 후 170
$^{\circ}C$ 로 1분 30초간 열처리 하였다. 이때 acryl binder의 첨가비율은 35${\sim}$ 55%로 변화를 주었다. 처리한 폴리에스테르에 DTP printing을 한 후 CCM 측정, 내수성, 접착성을 알아본 결과 acryl binder의 첨가비율은 45%일때 가장 우수한 발색성 및 printing 특성을 나타내었다. 기존 수성코팅제에 대비 20${\sim}$ 30% 발색성이 개선되었다. -
Hong, Tae-Il;Gu, Gang;Choe, Jong-Seok;Kim, Yeong-Dal;Park, Jin-Yeong;Gwon, Yeong-Chang;Yu, Jae-Yeong;Jeong, Chang-Hwa 141
극한의 추위를 견디기 위한 내한성 코팅 직물의 개발은 활발히 진행되었으나, 항균성에 대해서는 활발한 개발이 이루어지지 않고 있다. 본 연구는 내한성 코팅 직물에 천연항균제를 처리하여 물성의 변화를 알아보고자 한다. 현재 시판되고 있는 내한성 코팅 수지에 해조류에서 추출한 천연항균제를 처리하여 상용성을 알아보았다. 내한성 코팅수지에 천연항균제를 처리하면, 내한성 코팅 수지의 고유 물성은 유지되면서 항균성이 나타나는 것을 알 수 있었다. -
첨단과학기술의 발달로 환경오염이나 자연파괴 등을 유발시킴으로써 이에 부응하여 다양한 기능이 부여된 소재들이 개발 되고 있어 천연성분을 이용한 패션상품들이 고부가치를 창출하고 있다. 본 실험에서는 Kumazasa를 충분히 건조시켜 키토산을 젖산 수용액에 용해시켜 면을 처리 하고 욕비 1:10으로 Kumazasa를 24시간 80
$^{\circ}C$ 에 가열하여 얻은 추출액으로 염색하여 수세 및 건조하였다. 항균성은 황색포도당구균과 폐렴구균에 대한 항균성을 조사한 결과 모두 99.9%로 매우 우수한 항균성이 나타났다. -
현재 칡은 잎, 줄기, 뿌리를 이용해 많은 연구가 이루어지고 있다. 칡의 줄기를 이용해 삼태기, 광주리, 바구니 등을 제작하고, 꽃으로는 갈화라하여 식욕부진, 구토, 장출혈, 술 중독 등에 처방하고 있다. 그 중 뿌리는 고열, 두통, 고혈압, 주독, 설사 등에 효과가 있어 뿌리를 달여 칡차로서 많이 음용되고 있다. 하지만 뿌리의 즙을 짜고 남은 칡뿌리 섬유의 잔사는 식물성 섬유소로서 현재 대부분 폐기되거나 일부 양축 농가에서 사료의 증량제로 활용되고 있는 실정이다. 매년 1,000톤이상의 칡뿌리 생산량 중 잔사가 600톤 이상 된다. 이 잔사를 이용해 펄프를 만들고 필름을 만들어 나아가 섬유를 만듬으로써 친환경적인 섬유로써의 가능성을 살펴보고자 한다.
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사회가 발달하여 감성사회로 접어들면서, 섬유산업도 새로운 감성소재를 개발하기 위한 연구를 추구하고 있다. 이러한 분야의 연구수단으로 생체모방(Biomimetics)을 활용하는 연구개발이 활발히 진행되고 있는데, 이중 미래지향적인 차세대 섬유로 Morphotex(R)를 이용한 Morpho 직물이 있다. 감성소재분야에서 '구조발색섬유'라고 불리어지는 독특한 색미를 가진 섬유소재인 Morphotex
$^{(R)}$ 는 남미의 MORPHO 나비 날개의 구조적 발색원리를 모방하여 만든 광발색섬유로 염료와 안료를 사용하지 않는 친환경섬유이면서 고기능성과 쾌적성을 겸비한 소재로 요즘 많은 각광을 받고 있다. 본 연구에서는 구조발색 소재를 이용하여 제직한 감성의류소재 직물의 감량조건에 따른 감성특성을 비교.분석해보았다. 먼저 구조발색 소재로 제직 된 직물의 감량공정특성에 따른 구조발색 소재 직물의 인장 인열 특성을 분석하였으며 또한 KES-FB system으로 구조발색 소재 직물의 역학특성을 측정하고 측정한 역학특성으로부터 감성태를 평가해 보았다. -
M-aramid(in DMAc)를 전기 방사하여, chlorine을 부착시켜 항균성을 가지게 하였고, 부착된 chlorine의 농도는 titration을 통해 확인하였다. 15cm를 유지하여 방사했을 경우 10cm일 때에 비해 비드의 양이 적고, 비교적 균일한 형태로 방사되었다. 방사거리를 15cm로 유지시켜 방사한 m-aramid의 oxidized chlorine의 농도를 측정한 결과, 매우 우수한 수치를 보였고, 전압이 증가할수록 조금씩 감소하였다.
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Hollow fibers have been used in rather different fields of general textile use and in special-purpose products because of their unique structure. Hollow fibers have profitable properties for some applications because of their large surface/volume ratio. In this paper, dyeing properties of nylon hollow fiber were investigated. Nylon regular fiber and hollow fiber were used in the dyeing experiment. The samples were dyed with three kinds of acid dyes. Effects of dyeing temperature, pH of the dye bath, and dye concentration on dyeing properties were examined.
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The study has attempted to compare the behavior of reactive, disperse and acid dyes when wastewater from these three kinds of typical dyestuffs were treated by chemical coagulation and NF membrane in pilot scale. Disperse dyeing wastewater showed the tendency of easier removal in TOC and COD and especially in color. This is probably due to low water-solubility of disperse dyes compared with reactive and acid dyes and is a positive result in terms of water reuse. Bio-kinetic constants,
${\mu}$ max,$K_s$ of reactive, disperse and acid dyes were obtained, implying that their biodegradability are not significantly different. -
EU의 제품 환경규제와 관련하여 섬유 및 염 조제에서 검출되어 수출 시 클레임이 걸리는 유해물질로는 유해아민, 유기캐리어, 포름알데히드, 할로겐화 페놀, NPEO 등이 있으며, 이에 이러한 유해물질 검출동향과 분석법에 대하여 살펴보았다. 규제 이후 검출되어 온 유해아민, 포름알데히드, 유기캐리어는 지금 현재까지도 계속 검출되고 있으며 신규 유해물질로 규정된 NPEO의 검출 빈도수가 증가하고 있다. 이에 따라, 국내 기업들은 지속적인 품질관리를 통해 제품 수출 시 유해물질 함유로 인한 피해가 없도록 주의해야 한다.
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Four different subtilisins of protease were investigated to see their effects on the cleaning activity. The cleaning solution was formulated with various non-ionic surfactants and other additives such as propylene glycol, triethanolamine, pH balancer etc. to evaluate their effect on enzyme activity as well. Evaluation of formulated cleaning solution was carried under K0120 using pre-soiled textiles from EMPA. The results showed that the cleaning activity on soil removal was not severly influenced by surfactant but the enzyme mostly. In addition, the activity of enzymes was not much affected by the type of surfactants as long as the surfactants were non-ionic. Liquinase among the four enzymes used in this study showed the best performance on soil removal, especially blood stain.
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가염성 Polypropylene을 전처리하지 않고 분산염료를 이용하여 염색할 경우, Red 계통 염료의 염착성에는 문제가 없었으나, Blue 계통의 염료는 염료가 소색되어 농도가 현저하게 저하하는 염료가 있었다. 이는 섬유에 처리된 유제에 대한 영향으로 예상되며, 가염성 Polypropylene을 분산염료를 이용하여 염색할 경우 전처리가 매우 중요하다고 하는 것을 확인할 수 있었다.
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아라미드 섬유는 화학적으로 치밀한 구조 때문에 염료의 침투가 어려워 염색이 곤란하다. 염료의 침투가 용이하도록 팽윤제를 사용하여 염색하는 방법이 주로 사용되고 있지만 만족스러운 염착률을 얻을 수 없다. 본 연구에서는 기존의 방법에 중성염을 첨가하여 아라미드를 염색함으로써 중성염이 아라미드 염색에 미치는 영향에 대해 알아보았다. 연구 결과, 중성염을 사용하지 않은 경우에 비해 염색성이 향상되는 것을 확인할 수 있었다. 또한 연구에 사용된 3종의 중성염 중에서 NaCl을 사용한 경우에 가장 우수한 염색성을 나타내어 현장에서 경제적으로 적용 가능한 아라미드 염색법이 될 것으로 기대된다.
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In the presence of heat and oxygen, phosphorous compounds decompose to form water vapor and phosphorous oxides. The phosphorous oxides subsequently reat with the polymer matrix and dehydrate it, reforming phosphoric acids. These acids again decompose to reform water vapor and phosphorous oxides. Ultimately as the water available from normal combustion of hydrocarbons diminishes, the phosphorous oxide reat with hydrocarbon fragments to produce a very high melting point char at the interface between the polymer and the heat material. The chars, which contain phosphorous, rapidly dissipate heat energy and lose their glow. This antiglow property of phosphorous compound contributes to its availability as a flame retardant. In this study, the acrylated phosphorous compounds will be prepared and demonstrated as flame retardants.
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The study has focused on the dyeing properties of 4 kinds of high temperature type mono azo disperse dyes, widely used in the dyeing factory, under the ultra low liqour ratio (1:4) dyeing condition. Among those, C.I. Disperse Red 343 and C.I. Disperse Blue 79 showed un-levelled dyeing results from the ultra low liquor ratio dyeing bath as well as poor dispersion stability under the high temperature. We recommended some leveling agents to improve the leveling behavior of these dyes mentioned above. The milling technology should be further developed to achieve the dispersion stability.
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Kim, Tae-Gyu;Park, Sun-Ji;Choe, Sin-Ae;Lee, Hui-Jeong;Seo, Chu-Yeon;Kim, Hye-Jin;Gu, Gang;Park, Yeong-Min 198
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본 연구는 양모 복합섬유용 복합가공제 및 이를 이용한 양모 복합섬유의 복합가공방법에 관한 것으로서, 여러 실험조건을 통해 양모를 포함하는 다종 섬유간에 손상 또는 침해가 없으면서 색상의 균염성을 확보하고, 우수한 항균성, 발수성, 방오성을 발현할 수 있는 양모 복합섬유가공에 관한 연구이다.
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본 연구는 PFOA 규제대응 발수제(불소고분자의 탄소수가 6개)와 신규합성한
$TiO_2$ sol을 부피비로 혼용한 후 그에 따른 발수성과 방오성 향상에 관한 연구이다. 발수제 단독 처리 시 발수제의 사용량이 점차 줄어듬에 따라 발수도는 100에서 50${\sim}$ 70으로 점차 감소하였으며, 방오성은 5에서 2로 감소하였다. 그러나$TiO_2$ sol을 발수제와 혼용하였을 경우 발수제의 사용량이 줄어듬에 따라 발수도가 100에서 80으로 방오성은 5에서 3.5로 감소하였으나, 발수제 단독 처리 시보다 우수한 결과가 나왔다. -
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