• 한국염색가공학회지
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• 제20권6호
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• pp.87-91
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• 2008

It is commonly known that water repellency of the fabric treated with fluorocarbon resin brings about a decrease by the washing and recovers by the subsequent heat treatment. In this article, effect of the water repellency was investigated on the nylon 6, triacetate and silk fabrics treated with hydrocarbon and silicon resins. Hydrocarbon and silicon resins have been widely used in the textile finishing as the softening and water proofing agents. The fabrics were treated with hydrocarbon resins, Paragium JQ and RC (Ohara Paragium Chemical Co.) and a silicon resin, Poron MR (Shinetsu Chemical Co.), and then washed and subsequently heat treated. Although the water repellency increased by the resin treatment, it decreased by the washing apparently and recovered a little by the heat treatment. The effect of the heat treatment was small comparing with that of the fluorocarbon resin. Furthermore, as a mechanical property of the treated fabric, KES shearing and bending hysteresis parameters, modulus and hysteresis width of the hydrocarbon resin-treated nylon 6, triacetate and silk fabrics decreased by the heat treatment after washing. Therefore, the treatment is effective at improving the softening of the fabric in water repellent finish.

• 한국의류산업학회지
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• 제22권1호
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• pp.112-118
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• 2020

This paper examined the water repellency, water proofing and water vapor permeability of twelve types of woven fabrics for sports wear clothing. Their physical properties were compared and discussed with the fabric structural parameters and surface finishing effect. A water repellent property of 100% was obtained in the coated or laminated water repellent finished fabrics; in addition, cotton/nylon breathable composite fabrics treated with a laminated finishing and with low fabric density showed a 90% water repellency. Water proofing fabric above 6,000 mm H₂O hydraulic pressure was achieved by coated or laminated finishing; however, high density fabric or medium-level coated fabrics exhibited 100% water repellent and low water proofing characteristics. Superior water vapor permeability characteristics with good water repellency and proofing properties were achieved at the 2.5 layered low density and with 0.7 - 0.9 cover factor nylon fabrics treated with hydrophilic laminated finishing. The regression analysis for examining the effects of fabric structural parameters and surface finishing such as coating and laminating to the water vapor permeability exhibited a high determination coefficient of fabric structural parameters of 63.5%; in addition,, main factors among fabric structural parameters appeared to be cover factor and fabric thickness per weight. Coating and Laminating factors exhibited determination coefficient of water vapor permeability parameters of 36.5%.

• 폴리머
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• 제31권1호
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• pp.31-36
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• 2007

플라스마 표면처리는 전체적인 물성은 유지하고 표면의 특성만을 변화시킨다고 전해지고 있다. 이번 연구에서는 플라스마 처리에 의해 높은 발수성을 나타내는 나일론 6 섬유로의 개질을 시도하였다. 발수성을 나타내는 나일론 섬유는 가스 종류, 처리시간, 인가 파워를 변수로 하여 RF 진공 플라스마 시스템에서 처리되었다. 플라스마 처리된 섬유의 표면을 scanning electron microscopy(SEM)과 atomic force microscopy(AFM)으로 모폴로지 변화를 살펴보았으며, 기계적 특성과 고분자 고유의 특성을 인장강도와 Differential scanning calorimetry(DSC), thermo-gravimetric analysis (TGA)로 각각 분석하였다. 또한 나일론 섬유의 발수성 평가는 물방울 흡수시간으로 테스트를 실시하였다. 이러한 결과들은 플라스마 표면처리로 인해서 나일론 섬유의 발수성이 향상됨을 나타내었다.

• 한국포장학회지
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• 제13권3_4호
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• pp.89-95
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• 2007

식물성 천연항균제인 BAAG와 기능성 무기계 첨가제인 zeolite를 이용하여 항균 및 ethylene 가스 포집 능력을 갖는 포장원지를 제조하였다. 기능성 포장원지의 인장강도와 파열강도는 항균제와 zeolite를 첨가하지 않았을 때보다 다소 감소하는 경향을 나타내었고, 반면에 강성과 인열강도는 항균제와 zeolite를 첨가하지 않았을 때보다 증가하는 경향을 나타내었다. 과채류 숙성 호르몬인 ethyene 가스는 포장원지에 zeolite를 첨가하면서 빠르게 감소하였다. 포자원지의 발수성은 중성 사이즈제인 AKD를 첨가하면서 높은 내수성을 나타내었다.

• 한국염색가공학회지
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• 제23권2호
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• pp.131-139
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• 2011

This study surveyed on the synthesis of one-step type hydrophilic non-porous PU resin and the physical property of the coated fabric for the garment. Three kinds of chain extender such as MEG, 1,4-BD and NPG were used for the preparation of one-step type hydrophilic non-porous PU resin in order to examine the effect of chain extender on the physical properties of PU-coated fabric. And the effects of isocyanate on the physical properties of PU coated fabric were surveyed by mixing with various TDI and MDI ratios. In addition, the physical properties of the coated fabric treated with one-step type hydrophilic non-porous PU resin were examined according to the pre-treatment conditions such as cire finishing. Finally, the washing durability of the coated fabrics was assessed. The coated fabrics treated with PU resin synthesized with PEG1000, MEG and TDI/MDI (6/4) showed the best physical properties. Considering the pre-treatment conditions, best performance of hydraulic pressure, water vapor permeability, and water repellency were obtained with top roller rotation ratio of 150% under 50 ton pressure at $170^{\circ}C$.

• 한국염색가공학회지
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• 제20권6호
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• pp.26-34
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• 2008

Wool fabric having high moisture content were treated with fluorocarbon-based water and oil repellent finishing agents by pad-dry-cure system. Three types of finishing agents which were regular-type or nano-type were adapted to compare the surface chemical composition, water and oil repellent property, crease recovery angle, and durability to repeated laundering. From the surface chemical compositions resulted by ESCA and C1s curve-fitting, it was shown that the regular-type finishing agent were easily taken off from the finished wool fabrics after repeated laundering. On the other hand, the fluoroalkyl groups of nano-type finishing agents turned round from fabric surface to fiber internal after repeated laundering. The water repellency of the wool fabrics treated with regular-type agent had a little changes according to the treatment condition changes and sharply decreased with repeated laundering. However, these values when treated with nano-type agents increased with the concentration and cure temperature and were maintained after 20 times laundering. The wool fabrics treated with nano-type agent had a great oil repellency irrespective of treatment conditions. Furthermore, the wrinkle recovery values of the wool fabrics treated with nano-type agents were higher than those of the fabrics treated with regular-type agent and were unchanged after 20 times laundering.

• 공업화학
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• 제33권6호
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• pp.588-593
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• 2022

MgO 입자 표면에 첨가된 P₂O₅의 가수분해, 발수성, 그리고 절연 거동에 미치는 영향을 조사하였다. MgO 표면에 첨가된 P₂O₅는 가수분해반응 억제와 발수성을 동시에 나타내기 때문에 독특한 절연거동을 나타내었다. 따라서 절연거동은 MgO의 표면수화반응에 의한 Mg(OH)₂와 OH^-전하 전달비와 친수성에 반비례하였다. 시효에 따른 MgO의 절연성은 표면수화반응, 첨가된 도펀트 종의 밴드갭, 그리고 도펀트의 친수성과 소수성에 강한 영향성과 의존성을 나타내었다. 마지막으로 친수성인 MgO의 표면수화반응을 억제하는 전기절연성을 발현하여 열전달매체 응용분야에서 큰 잠재력을 제공하는 것으로 나타났다.

• 한국염색가공학회지
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• 제23권2호
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• pp.100-106
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• 2011

UV-curable water-repellent finish was carried out to impart one-side repellency to the PET fabrics using a formulation of a UV-active fluorocarbon agent and a water soluble photoinitiator. The aqueous formulation was padded on the PET fabrics and it was subsequently UV-cured. The unirradiated side of the cured fabrics was made to wetteable to water by the prolonged UV/ozone irradiation. The influence of photoinitiator concentration, agent concentration and UV energy for photodegradation on the performance of the finished fabrics were investigated. The difference in the functional property of front and back sides was examined by measuring water repellency at each side of the treated fabrics, which resulted in four rating difference between two-side. The UV-cured and photodegraded PET surfaces were characterized by ATR, ESCA and FE-SEM.

• 한국염색가공학회지
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• 제5권1호
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• pp.10-18
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• 1993

Epoxy compound was synthesized from bisphellol-A with epichlorophydrine. Epoxy compound and siloxane were emulsified conjugative one or another. The water repellency of silk fabrics was also highly improved by the treatment of epoxy-siloxane mixed emulsions containing stannic chloride and zirconium oxychloride. The maximum wrinkle recovery was obtained from the fabrics treated under the condition 2.5%-epoxy-siloxane emulsion at 16$0^{\circ}C$. The breaking elongation, the reflectance, the tensile strength and the bending properties of silk fabrics were not degraded severely by the treatment of epoxy-siloxane emulsion.

• 접착 및 계면
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• 제15권4호
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• pp.151-160
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• 2014

이상적인 내발수 특성을 얻기 위해 유화중합을 이용하여 n-methyol acrylamide (n-MAM)와 stearyl methacrylate (SMA)의 단량체에 기능성 단량체인 PFOEA의 함량(0-8 wt%)에 따른 공중합체를 합성하였고, 추가적으로 2-(perfluorooctyl) ethyl acrylate (PFOEA) 함량이 4 wt%인 조성에 m-isopropenyl-${\alpha}$,${\alpha}^{\prime}$-dimethylbenzyl isocyanate (TMI)의 함량(1~4 wt%)을 첨가한 공중합체를 합성하였다. 유화중합을 위해 비이온 유화제인 tridecyl alcohol (TDA-7), 양이온유화제인 alkyl dimethyl amine derivatives(ADAD)를 사용하였고 개시제로는 2,2'-azobis (2-amidinopropane dihydrochoride) (AAPDL)을 사용하였다. 합성된 공중합체에 대해서 FT-IR spectra를 이용하여 구조분석을 하였고 표면특성 분석을 위해 접촉각, 표면에너지, 발수도 그리고 SEM을 측정하였으며, TGA와 DSC를 사용하여 열적 특성을 확인하였다. PFOEA와 TMI의 특정 함량에서 우수한 발수도와 높은 열적 특성을 보이는 공중합체가 합성됨을 알 수 있었다.