• Title/Summary/Keyword: Non woven fabric

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A Study on Fabric Adhesive Interlining(3) (직물접착심지에 관한 연구(3))

  • Cho, Cha
    • Journal of the Korean Home Economics Association
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    • v.35 no.1
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    • pp.257-262
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    • 1997
  • In this thesis considering the problems shown in the usage of interlining of clothes and in the process of sewing the breaking away strength which is meant by adhesion is analysed by experimennt in which Polyamide content is dealed with at the 5 level to raise the adhesive strength by using the one-sided non woven adhesive interlining made in this country as the samples. After examing the optimum in the process of Cotton and polyester fabrics and adhered fabrics practical for blouse and jacket and analysing the breaking away strength the wanted property of matter and the change with the repeated laundry We reach at the following results. 1. The adhesive strength of the two adhered fabrics were strongly appeared in order of cotton>polyester. 2. The order of the breaking away strength by the interlinings of adhesive fabrics was A5> A4> A3> A2> A1. 3. The breaking away strength of the two adhered fabrics was weakened by the repeated laundry and the breaking away phenomena were fewer under the most suitable conditions than the various conditions.

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Radial Flow Type Bioreactor for Bioartificial Liver Assist System using PTFE Non-Woven Fabric Coated with Poly-amino Acid Urethane Copolymer

  • Miskon, Azizi;Yamaoka, Tetsuji;Uyama, Hiroshi;Kodama, Makoto
    • Proceedings of the Polymer Society of Korea Conference
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    • 2006.10a
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    • pp.259-259
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    • 2006
  • PAU is the block copolymer consists of a small amount of a small amount of poly(${\gamma}-methyl-L-glutamate$) (PMLG) and the polyurethane. The urethane segments are hydrophobic and then strongly interact with the other hydrophobic materials such as PTFE, and the PMLG segments with the ${\alpha}-helix$ structure possess the cytocompatibility. Therefore, PAU can be easily coated onto the PTFE fiber and acts as an artificial extracellular matrix with the high cytocompatibility Results shows, the immobilization, cultured and functions of porcine hepatocytes is greatly improved.

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Dyebath Reuse in Dyeing of Nylon Microfiber Non-woven Fabric with 1:2 Metal Complex Dyes

  • Koh, Joon-Seok;Kim, Yong-Geol;Kim, Jae-Pil
    • Fibers and Polymers
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    • v.2 no.1
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    • pp.157-162
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    • 2001
  • Dyebath used for metal complex dyeing of nylon microfiber was recycled to reduce the overall amounts of metal complex dyeing effluents. Instead of discharging the dyebath after each dyeing cycle, the residual dyebath was analyzed spectrophotometrically and reconstituted to the required concentration of dyes and auxiliaries. Dyebaths were reused eight times and the CIELAB coordinates of dyed samples were measured after each recycling. Color difference($\Delta$E*) between the sample dyed in the fresh bath and that from reused dyebath was maintained below 1.5. The levelness and fastness of dyed fabrics from recycled dyebath were not impaired either. Chromium content of each recycled dyebath was similar to that of the first residual dyebath.

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A study on panel structure filter performance of air handling units for subway stations (지하역사 공기조화기 장착용 판넬형 부직포필터 성능 연구)

  • Hwang, Sun-Ho;Bae, Sung-Joon;Shin, Chang-Hun;Park, Youn-Ho;Kwon, Soon-Bark;Kim, Se-Young
    • Proceedings of the KSR Conference
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    • 2010.06a
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    • pp.1328-1334
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    • 2010
  • As the life quality is higher and higher, the requirement for the clean air in a subway station is strongly being increased. Therefore, many researches have been performed about that. Seoulmetro has taken many parts and has applied latest products for the higher level of air quality. However, by various kinds of facilities, it is hard to maintain the facilities and verify their performances. Therefore it is better to use qualified air filter system by the performance test at subway stations than to apply newly developed one without any verification. This study is focused on the performance verification for a panel structure, which consists of non-woven fabric, to suggest the standard of air filter systems.

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Effect of Covering Materials of Ventilating Non-Woven Fabric and $GA_3$ on the Growth and Yield in the Leaf Lettuce during Low temperature (통기성 부직포의 피복자재 및 $GA_3$처리가 저온기에 잎상추의 생육 및 수량에 미치는 영향)

  • 안종길;최영환;빈기효홍
    • Proceedings of the Korean Society for Bio-Environment Control Conference
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    • 2002.04a
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    • pp.13-19
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    • 2002
  • 우리나라에서는 결구상추보다 잎상추가 주로 재배되고 있고 특히 잎상추는 내한성이 강하여 $0^{\circ}C$에서도 잘 견디고 5$^{\circ}C$ 이상이면 겨울 저온기에도 무난방 재배가 가능하나 피복자재와 피복 노력 등의 비용이 많이 들고, 또 온도 환경이 불량하여 단경기 생산이 불가능하게 되어 주년 재배가 어렵게 되므로 저온기에 효과적인 보온 방법과 생장조절제처리로 엽채류의 생육 촉진 및 품질을 향상시킬 수 있는 방법이 필히 구명되어야 할 과제라고 생각된다. (중략)

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Low velocity impact characteristics on environmental variation of composite laminates used in the light rail transit (경량전철 복합 적층판의 환경변화에 대한 저속충격특성)

  • 김후식;김재훈;이영신;박병준;조정미
    • Proceedings of the KSR Conference
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    • 2002.10a
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    • pp.86-91
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    • 2002
  • Glass/phenolic composite laminates have been used in the field of non-flammable light rail transit and their applications have expanded more widely. Low velocity impact tests have been used to evalute the effect of temperature and acceleration aging on low velocity impact response of phenolic matrix composites reinforced with woven E-glass fabric. The damage of matrix cracking and delamination are suddenly reduced the compressive strength after impact. The damage area increases with increasing temperature and impact energy. UT C-scan is used to determine damage areas by impact loading. Therefore, all this observations indicate reduced impact damage resistance and damage tolerance of the laminates at elevated temperature.

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Characteristics of Ganoderma lucidum during short log cultivation with soil contact barrier treatment (영지버섯(Ganoderma lucidum) 단목재배시 토양접촉차단재 처리별 자실체 특성)

  • Kim, Minkyeong;Hwang, Jae Soon;Park, Jung-Hee;Shin, Yong seub;Jo, Woo-Sik
    • Journal of Mushroom
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    • v.16 no.3
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    • pp.231-235
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    • 2018
  • Arthrographis cuboidea is a wood rot fungus found in soil. It causes disease in repeated cultivation areas of Ganoderma lucidum, which damage the mushroom logs and causes considerable loss of income to mushroom farmers. This study aimed to investigate the physicochemical properties of soil and characteristics of the growth environment such as the temperature of the Ganoderma lucidum cultivated land. The time required for primordia initiation was 12-13 days. In the chromaticity survey, the degree of redness (a) was 19.5 for vinyl, 20.2 for control, and 19.5 for nonwoven. The yellowness index (b) was 12.7 for vinyl, 13.3 for control, and 12.4 for nonwoven. In the study of growth characteristics, in case of no treatment (control), the length and thickness of the pileus were measured as 145.7 mm and 23.6 mm and those of the stipe were 73.9 mm and 11.5 mm, respectively, and the weight was 130 g. Treatment with non-woven fabric resulted in 157 mm and 93.3 mm long and 22.3 mm and 11.9 mm thick pileus and stipe, respectively, and the weight was 164 g. This result indicates that treatment with non-woven fabric is better than no treatment with respect to Ganoderma lucidum growth.

Weed Control Efficacy and Production of Fruit according to Several Weed Control Methods in an Apple Orchard (사과원에서 잡초방제 방법이 제초효과 및 과실생산에 미치는 영향)

  • jang, Il;Kang, Ji Eun;Kim, Hyang Mi;Park, Yong Seog;Lee, Jeong Deug;Suh, Sang Jae
    • Weed & Turfgrass Science
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    • v.4 no.2
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    • pp.104-110
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    • 2015
  • This study was conducted for 3 years in an apple orchard to investigate the efficacy of the glufosinate-ammonium (GFA) SL for weed control in comparison to non-woven fabric mulch, sod culture and machinery cutting treatments. Glufosinate-ammonium SL 18% was applied with 2 to 3 times, and the extents of injury caused by the different weed control methods were also investigated during the 3 years. The highest level of weed control was obtained by glufosinate-ammonium 3 times spray (98.7%), followed by machinery cutting (95.1%), glufosinate-ammonium 2 times spray (81.5%) and natural sod culture (5.8%). Amounts of fruit production in three times application of glufosinate-ammonium 540 g a.i. $ha^{-1}$, twice application of GFA, machinery cutting, non-woven fabric processing, sod culture and untreated control were 27.2, 26.2, 25.3, 24.1, 20.4 and 13.3 kg, respectively. There was no toxicity symptom of glufosinate-ammonium on the whole tree such as fruit, bud, trunk, branch and flower during the 3 years.

Recycling of Sound Insulation Headliner Waste Material (흡음재 폐기물의 재활용 방안)

  • Hong, Young-Ho
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.14 no.6
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    • pp.3089-3095
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    • 2013
  • The headliner was made of polyurethane(PU) and glass fiber(GF) composite materials are widely used as a sound insulation material. A large amount of waste materials occurs as a by-product in the headliner manufacturing process. In order to efficiently reuse the headliner waste materials, separation process of the components are very necessary. According to the results of thermal analysis, weight loss showed increase in the order polyurethane foam> non-foaming polyurethane> non-woven fabric> 1st layer> glass fiber in the range of up to $400^{\circ}C$. Analysis of the DSC characteristics, HDPE, LLDPE, PP, and Master Batch by adding additives the wasted scrap. As a result, except for the PP, there was no exothermic transition due to the crystallization.