• Title/Summary/Keyword: Fabric performance

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Thermal Comfort and Tactile Wearing Performance of Wool/nylon Fabrics for Tra-biz Garment (울/나일론 tra-biz 의류용 직물 소재의 열적 쾌적성과 착용특성)

  • Kim, Hyun Ah
    • Fashion & Textile Research Journal
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    • v.18 no.6
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    • pp.878-888
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    • 2016
  • In this study, wool/nylon(50/50%) blend yarn and its fabrics for tra-biz(complex word of travel+business) garment were prepared, and its wear comfort characteristics were investigated through thermal manikin and human-body wearing experiment. In addition, tactile wearing performance from fabric mechanical properties and the dimensional stability and the pilling of the fabric specimen during wearing and dry-cleaning were measured and compared with those of wool 100% fabric specimen. Heat keepability of the wool/nylon(50/50%) blend fabric by thermal manikin experiment was superior than that of wool 100% fabric, this result was verified with human-body wearing experiment and its result coincided well with this experimental result. Tactile wearing performance of the wool/nylon(50/50%) fabric from fabric mechanical properties measured by FAST system was better than that of the wool 100% fabric. The dimensional stability of the wool/nylon(50/50%) fabric was more stable than that of the wool 100% fabric. Because relaxation shrinkage was lower and hygral expansion of wool 100% fabric was more high. However, the breathability and pilling property of the wool/nylon(50/50%) fabric were inferior than those of the wool 100% fabric. The possibility of application for tra-biz garment of wool/nylon(50/50%) blend fabric was observed because of good heat keepability, tactile wearing performance and washing fastness.

Performance Analysis of Fast Packet Switch

  • Lee, Kang-Won
    • Journal of Korean Institute of Industrial Engineers
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    • v.22 no.2
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    • pp.277-302
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    • 1996
  • The overall performance of BISDN depends significantly on the interconnection network or the switch fabric. Hence, it is extremely important to evaluate the performance of the network or the fabric. The well developed performance models also provide insight into the factors that determine design tradeoffs as well as quantitative estimates of their importance. The objective of this paper is to investigate and critically compare all the developed performance analysis models of FPS according to internal switch fabric structure, traffic assumptions, performance measures, methodologies, etc. FPSs are described according to their internal fabric structure. Brief history of FPS performance analysis is mentioned and performance analysis modeling is discussed.

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Instrumental Measurements of Hand Attributes on Microfiber Polyester/Cotton Blend Fabric Finished with Silicone Mixed Fluorochemical

  • Ahn, Young-Moo
    • Journal of Fashion Business
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    • v.10 no.6
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    • pp.16-27
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    • 2006
  • The purpose of this study was to examine the effects of chemical finishes on performance characteristics of microfiber blend fabrics. A 60% polyester microfiber /40% cotton blend woven fabric was finished by ten chemicals: three silicone softeners, one fluorochemical, and their mixtures. Performance characteristics examined were fabric hand attributes. Fabric hand was evaluated by instrumental measures using Kawabata KES-F system instruments. Silicone-only finishes did not change the bending properties significantly from those of the control fabric. The fluorochemical-only finish made the fabric stiffer and crisper. When the two chemicals were mixed they tended to offset this adversary effect. Most of the chemical finishes made the surface finer and smoother. Fluorochemical-only finish improved fabric strength. Likewise, dimethylpolysiloxane silicone improved fabric strength. Amino-functional hydrophilic and diamino-functional silicone softeners, on the other hand, reduced fabric strength. However, when mixed with the fluorochemical, the adversary effect was diminished.

Performance Comparison of a Fabric Filter System with Centrifugal Force and a Conventional Fabric Filter System (원심력이 적용된 여과포집진장치와 기존 집진장치의 성능비교)

  • Kim Sang-Do;Park Young-Ok;Kang Yong
    • Journal of Korean Society for Atmospheric Environment
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    • v.20 no.6
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    • pp.739-748
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    • 2004
  • A hybrid dust-collector combining a fabric filter with centrifugal force was developed to enhance the performance of the conventional fabric filter systems and its performances were evaluated to compare to that of the existing dust collector. The pressure drop rapidly increased with increasing the elapsed time and the face velocity in two filtration systems. But the increasing ratio of a hybrid dust-collector compare to the existing dust collector was lower. This results were confirmed from the performance such as cleaning interval, residual pressure drop and dust loading rate. The overall collection efficiency of the hybrid dust-collector was more than 99.6% and this showed a improvement of 0.6~2% than that of the existing dust collector. Especially, the fractional collection efficiency at the particle size of around 1${\mu}{\textrm}{m}$ is about 4% higher than that of the existing dust collector.

Tests of Fire and Flame Retardant Performance for Membrane Materials (막재료의 난연 및 방염성능 실험에 대한 연구)

  • Kim, Gee-Cheol;Choi, Kwang-Ho
    • Journal of Korean Association for Spatial Structures
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    • v.16 no.2
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    • pp.55-60
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    • 2016
  • The Membrane structure has a number of problems in the application of a fireproof code based on general buildings codes. Thus, the fireproof code of membrane structure is necessary to activate the construction of the membrane structure. Because it requires a systematic classification of fire retardant and flame proof performance of membrane material. Fire retardant and flame proof tests are conducted on membrane materials mostly used in current construction to propose the fire and flame retardant performance criteria of membrane materials. Fire and flame retardant tests results, PTFE membrane material with the glass fiber fabric have a limit-combustible performance. PVDF membrane material with the polyester fabric does not ensure the fire retardant performance, but this membrane material has the flame retardant performance of a thick fabric. Also, ETFE does not ensure the fire retardant performance, but this membrane material has the flame retardant of a thin fabric.

Evaluation of Mechanical Properties and Durability of Fabric Concrete Binder for Emergency Repair (기상재해 대응 긴급보수용 패브릭 콘크리트 혼합물의 역학적 특성 및 내구성능 평가)

  • Jeon, Sang-Min;Jo, Sung-Mun;Oh, Ri-On;Kim, Hwang-Hee;Cha, Sang-Sun;Park, Chan-Gi
    • Journal of The Korean Society of Agricultural Engineers
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    • v.62 no.4
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    • pp.23-31
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    • 2020
  • Recently, meteorological disasters have been increasing by climate change, excessive rainfall, and landslide. The purpose is to develop new fabric concrete that can prevent and recover from damages because some of areas are vulnerable to meteorological disaster. Specifically, this technology can minimize time and space constraint when repairing the concrete structure and installing a formwork. The structure of fabric concrete is a mixture of fabric concrete and a high-speed hardened cement, Silica sand, wollastonite mineral fiber, fabric material and waterproof PVC fabric. In this study, the ratio of mechanical properties and durability of the fabric concrete mixture was evaluated by deriving the binder: silica sand mix ratio of the fabric concrete mixture and substituting part of the cement amount with wollastonite mineral fiber. Best binder in performance evaluation: Silica sand mix ratio is 6: 4 and the target mechanical performance and durability are the best when over 15% wollastonite binder is replaced by silicate mineral fiber.

The Effect of Fabric Movement on Wrinkle Recovery in a Clothing Care System (의류관리기 내 직물거동이 구김 제거에 미치는 영향)

  • Yu, Dongjoo;Yoon, Juhee;Lee, Sang Wook;Yun, Changsang
    • Journal of the Korean Society of Clothing and Textiles
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    • v.45 no.2
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    • pp.335-345
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    • 2021
  • The purpose of this study was to examine the effect of fabric movement on wrinkle recovery in a clothing care system and to propose an algorithm to improve wrinkle removal performance by adjusting fabric movements. With an increase in the reciprocating speed of the movement system, the number and amplitude of curves on the fabric also increased. This allowed the fabric to be applied to a larger tension, resulting in better wrinkle removal performance at higher speeds. However, even at high reciprocating speeds, wrinkles could not be removed effectively because of nodes at a few specific locations. Based on the results of fabric movement and wrinkle recovery, a complex movement algorithm was proposed with a mixture of various reciprocation speeds. It showed a 41%p (24%→65%) improvement of wrinkle recovery when compared with the conventional algorithm that showed simple fabric movement at 180 rpm. This was because the positions of nodes and antinodes changed continuously and the force by the reciprocating motion could be applied evenly to the fabric.

Performance Analysis Based on Bonded Surface Designs for Stitchless Welded Products

  • Kim, Keum-Wha;Choi, Hei-Sun
    • Journal of the Korean Society of Clothing and Textiles
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    • v.36 no.6
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    • pp.583-591
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    • 2012
  • This study selected three model designs used for air injection type welding clothes designed for insulation purposes and analyzed the performance of each design. The bending characteristics were analyzed in order to identify the flexibility of the welded areas; subsequently, the seam breaking strength and water pressure resistance were analyzed to identify the bonding strength. In addition, two types of waterproof fabric, polyurethane (PU) coated 2 layer and PU laminated 2 layer fabrics, were used for a performance analysis, according to fabric processing specifications. The circle type showed the highest flexibility in the terms of bending characteristics that influence wearability and were followed by the wave and the straight type. In terms of breaking strength, the straight type showed the highest breaking strength, followed by the wave and the circle type. The water pressure resistance analysis found that the wave type was superior to the straight type in terms of water pressure resistance. The wave type is deemed to be a design type suitable for maximizing performance, provided that the issue of stabilization in the welding production process is addressed. Looking at the bending characteristics of waterproof fabric for each specification, the laminating waterproof cloth outperformed the coated waterproof cloth in terms of flexibility. However, in terms of seam breaking strength, the coated waterproof cloth outperformed the laminated cloth. In contrast, the water pressure resistance of the laminated waterproof fabric was found to be higher than the coated waterproof fabric, leading to the conclusion that the bonding strength of the laminated waterproof fabric is higher than that of the coated waterproof fabric based on the assumption of injecting air.

Partnership between Korean Apparel Manufacturers and Fabric Suppliers, and Performance of the Korean Apparel Manufacturer (의류 제조업체와 원단공급업체의 파트너십과 의류 제조업체의 성과와의 관계)

  • Jang, Se-Yoon;Lee, Yu-Ri
    • Journal of the Korean Society of Clothing and Textiles
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    • v.30 no.1 s.149
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    • pp.38-47
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    • 2006
  • As apparel manufacturers and fabric suppliers are positioned in the middle of the apparel supply chain, these supply chain members build up a partnership to establish a win-win mutual relationship and to gam global competition. This study aimed to provide useful suggestions in setting up operational strategies by investigating the current state of a partnership between apparel manufactures and fabric suppliers. Partnership variables were included as: cooperative attitude, information sharing, interdependency, communications, strategic fit trust and commitment. Manufacturers' performance included productive/economic/emotional performance. A questionnaire was distributed to apparel manufactures who are doing business with fabric suppliers. A total of 101 complete questionnaires were used for further analysis. The results were as follows; First, apparel manufacturers do business with $10\~20$ fabric suppliers mainly, duration of business relation with main partners ranged from 1 year to 30 years, with 7 years on average. Among criteria with which apparel manufactures select fabric suppliers, quality and delivery-time were the most important. Second, cooperative attributes, communications, and strategic fit were positively related with trust. The higher commitment led to the high level of interdependency and strategic fit and tend to more trustworthy. Trust and commitment were significantly re lated with manufacturers' performance(i.e., productive/economic/emotional performance). This study is expected to contribute to increase the better performance for domestic apparel manufacturers.

Preparation of Yacht Sail Using High Tenacity Polyester and Its Performance Evaluation (폴리에스터 고강력사를 이용한 요트용 세일의 제조 및 성능분석)

  • Son, Hyun-Sik;Sim, Seung-Bum;Min, Mun-Hong
    • Textile Coloration and Finishing
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    • v.24 no.1
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    • pp.54-61
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    • 2012
  • This study surveyed the preparation of 8oz coated fabric and the physical property of the coated fabric according to the treated condition for the sail yacht. And the coated fabrics were compared with the performance of overseas products for verification. Physical properties of the coated fabric treated with non-yellowing functional polyurethane resin were examined according to the treatment condition such as compression and ageing treatments. Finally, yellowing fastness to light for 60 hours was assessed. Considering the compression condition after coating, good physical property was obtained at $6kgf/cm^2$. Also, the performance of yellowing fastness was similar to performance of overseas goods.