• 한국염색가공학회:학술대회논문집
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• 한국염색가공학회 2008년도 제38차 학술발표대회
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• pp.22-24
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• 2008

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.

• 한국염색가공학회:학술대회논문집
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• 한국염색가공학회 2008년도 제38차 학술발표대회
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• pp.138-140
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• 2008

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.

• 한국염색가공학회지
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• 제22권2호
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• pp.163-172
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• 2010

In order to investigate the changes in mechanical properties of sanitary nonwoven fabrics actually used as a top sheet, the fabric was treated with a mixture of chitosan and nanosilver colloidal solution in accordance with the prescribed ratio. The former is a natural polymer with excellent biocompatibility and the latter can give an additional performance while compensating the weaknesses of chitosan of deteriorating adherence efficiency. It was shown that the bending and shearing characteristics of the chitosan/nanosilver treated fabrics decreased, which helped to make it softer, smoother and more flexible. The shape stability and drapability of the treated fabrics improved. As KES-FB system evaluation showed that Koshi was deduced, and both Numeri and Fukurami were increased. Thereby, the chitosan/nanosilver treated fabrics were smoother to provide elasticity. In the change of hand value compared to chitosan only treatment, a better THV was shown in the fabrics treated with chitosan/nanosilver mixed solution than the fabric treated with chitosan alone.

• 한국의류학회지
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• 제22권1호
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• pp.100-107
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• 1998

Polyester filaments were dyed with disperse dye in dyebath containing water and water miscible organic solvents . acetone, 1,4-dioxane, DMF. In case of Acetone and 1,4-dioxane, the equilibrium dyeuptake was maximun at the volume fraction 0.05. The equilibrium dye uptakes were decreased as volun~e fraction of organic solvents were increased. When the volume fractions of water miscible organic solvents were varied, dye uptake was increased constantly with dyeing time. In dyebath containing water and water miscible organicsolvent, the dyeuptake was increased quickly during initial 40∼ 60 min. and slowly increased there after. The slope of Ct/Coo to t was greater in dyebath containing water and water miscible organic solvents than dyebath containing water. The differences of the slope with volulne fractions of water miscible organic solvent were not shown big.

• 한국염색가공학회지
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• 제8권6호
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• pp.55-64
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• 1996

The compression properties of the 2 folded yams such as compression linearity, compression resilience, and compression work with various wool/polyester blend ratios and with single and 2-folded yarn twists under various degrees of twisting were studied for analyzing twist characteristics, inter and intra frictional effects. A variation of single and 2-folded yarn twists was analysed in their twist structure. This structural analysis was discussed with various wool/polyester blend ratios and various single and 2-folded yarn twists.

• 한국염색가공학회지
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• 제21권1호
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• pp.67-72
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• 2009

To investigate the strong and effective sericin fixing agents and conditions, raw silk fibers were treated with the mixtures of urea-formalin, thiourea-formalin and melamine-formalin as sericin fixing agents, respectively. And the treated raw silk fibers were degummed by the degumming liquors of alkaline detergent and sodium carbonate to confirm the hardness of sericin fixation. The weight of raw silk fibers was decreased in the process of sericin fixation treating at 80$^{\circ}C$ for 60min. The effective sericin fixation was obtained by treating at $60{\sim}80^{\circ}C$ for 15min with the mixture of melamine and formalin. The mixture of melamine and formalin showed an outstanding ability of sericin fixation because the three amino groups of melamine were able to cross-link the hydroxy amino acids of sericin such as serine with the assistance of formalin.

• 한국염색가공학회:학술대회논문집
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• 한국염색가공학회 2009년도 제41차 학술발표회
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• pp.125-126
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• 2009

본 연구는 수용성 폴리우레탄 코팅 제품의 문제점인 코팅층간의 끈적임 문제, 내구성 문제 등을 개선하기 위해 졸-겔법을 이용하여 구형의 실리카 나노무기입자를 제조하고, 또한 주형을 이용한 다른 모양의 나노구조체를 합성하여 수성폴리우레탄 수지에 일정 비율 혼합하여 필름을 제조하여 수성 폴리우레탄 필름 대비 물성 향상에 관한 연구이다.

• 한국염색가공학회지
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• 제15권3호
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• pp.127-131
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• 2003

Acrylonitrile(AN) was solution-polymerized in dimethyl sulfoxide(DMSO) and tertiary butyl alcohol(TBA) at 30, 40, $50^\circ{C}$ using a low temperature initiator, 2,2'-azobis(2,4-dimethylvaleronitrile) (ADMVN). The low temperature polymerization using ADMVN, DMSO, and TBA is to be successful in obtaining high molecular weight polyacrylonitrile(PAN) with less branches by solution polymerization. Throug a polymerization of AN in DMSO at $30^\circ{C}$, PAN having viscosity-average molecular weight$(M_v)$ of 931,000 was obtained. And then, during AN solution polymerization in DMSO and TBA using a cosolvent system the in-situ formation of microfibrillar structure has been discovered at the cosolvent composition of 24/1$(V_{DMSO}/V_{TBA})$. The simultaneous process of gelation and phase separation of long chain molecules may explain the in-situ formation of PAN fibers during polymerization.

• 한국염색가공학회지
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• 제2권2호
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• pp.33-38
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• 1990

Nitrocellulose [NC]-Poly(vinylamine) [PVAm] blended membranes with the change of amino group contents were prepared. The sorption and permeation of a mono-sulfonic acid dye, Orange II, in the membranes were investigated by the steady-state permeation method at $50^{\circ}C$ and pH 2.2. The results were discussed in the framework of dual sorption and diffusion theory. It was found that thesorption isotherms comprise a partition and two Langmuir type adsorption having similar binding constants. One of the latter sorption modes is due to unknown adsorption sites in NC and the other is due to the amino groups in PVAm. Apparent diffusion coefficients for collective P and L dye species, $D_P\; and D_L$, were obtained. Interpretation of $D_P$ values leads to two modes of partitions; one is such that dye is immobilized in NC and the other is the dissolution of the dye into the internal water phase.

• 한국잠사곤충학회지
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• 제36권2호
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• pp.147-151
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• 1994

고급성과 위생성이 우수한 견과 실용적 특성이 우수한 합성섬유의 서로의 장점만을 가진 이상적인 직물을 개발코저 시험한 결과 고치와 polyester 복합사(S/P 복합사)와 복합 직물의 특성은 다음과 같다. 1. 자동조사기에 의한 복합사 제조시험 결과 빔을 5회 주었을때 보다 빔을 주지 않았을때 사조 집합도가 향상되었으며 빔을 주지 않고 공기교란 장치만으로 섬도 감지기의 작동도 정확히 이루어져 섬도편차가 양호한 S/P 복합사를 제조할 수 있었다. 2. S/P 복합사를 SEM으로 관찰한 결과 포합이 잘된 부분이 많았으나 견사는 견사끼리 polyester는 polyester 끼리 포합된 형태도 관찰되었다. 3. 직물을 SEM으로 관찰한 chiffon 직물은 강연을 한 결과 견사 부분이 polyester사 내부로 파묻힌 곳도 관찰되었다. 4. 분산염료와 산성염료 혼합용액에서 일욕 이단법으로 염색한 S/P 복합사 직물의 염색견뢰도는 habutae 직물은 일광견뢰도가 3급인 것을 제외하고는 모두 4급 이상으로 양호하였고 chiffon 직물은 모두 4급이상으로 양호하였다. 5. habutae 직물과 chiffon 직물의 특성을 보면 강력과 modulus는 생지에서 가장 크고 염색 가공지에서 크게 감소되었으며 신도는 정련지와 염색 가공지가 생지보다 증가되었다.