• 제목/요약/키워드: Warp knitted fabric

검색결과 24건 처리시간 0.021초

폴리에스테르 경편포의 신장특성에 관한 연구 (A Study on the Tensile Properties of Polyester Warp Knitted Fabrics)

  • 김석근;최재우;남은우
    • 한국염색가공학회지
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    • 제12권1호
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    • pp.17-24
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    • 2000
  • The tensile properties of polyester warp knitted fabrics of satin and reverse satin structure with various lengths of underlap were studied. In the range of low tension, the satin warp knitted fabric showed larger tensile energy and elongation in the direction of $0^\circ$ and larger tensile linearity, tensile resilience and initial modulus in $90^\circ$. Meanwhile, reverse satin one showed larger initial moduli in 0$^{\circ}$ and larger the others in $90^\circ$. In the range of high tension, the tendencies of both fabrics in $0^\circ$ direction were almost the same as those in all direction. As the under laps were shorter for both fabrics, tensile linearity, tensile energy and elongation increased, but tensile resilience decreased in all directions. However initial moduli were changed little.

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유연제 및 열처리에 따른 신발용 경편성물의 마모 및 역학 특성 변화 (Changes on the Abrasion and Mechanical Properties of Warp Knitted Fabric for Footwear with Softeners and Heat Treatments)

  • 전연희;구자길;정원영;안승국
    • 한국의류산업학회지
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    • 제12권4호
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    • pp.494-499
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    • 2010
  • Knitted fabrics are very popular for their numerous advantages such as greater comfort, attractive garment appearance, better fit on the body, etc. In this study, we investigated the mechanical properties and abrasion property of warp knitted fabrics for footwear which treated with several softeners to improve abrasion resistance. The antistatic softener among the various softeners showed high improvement in abrasion resistance. Among the mechanical properties with treating conditions, WT (tensile energy), G (shear stiffness), B (bending rigidity) increased as treating timeincreased. But the other mechanical properties were little changed with treating concentration.

폴리에스터-스판덱스 파워 네트 원단의 스판덱스 인장길이와 수축률 (Pulling-out Length of Spandex and Shrinkage Ratio of Fabric in the Polyester-spandex Power Net Warp Knitted Fabric)

  • 이춘길
    • 한국섬유공학회:학술대회논문집
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    • 한국섬유공학회 2003년도 가을 학술발표회 논문집
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    • pp.289-290
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    • 2003
  • 본 연구는 폴리에스터-나일론 파워 네트 원단의 건열특성을 다룬 것이다. 이 건열특성은 스판덱스(spandex)의 특성에 크게 영향을 받는다. 스판덱스는 통상 활용할 수 있는 신도가 500~600 %에 이른다는 성질 때문에 섬유제품에 많이 응용되고 있다 이는 탄성이 양호하여 스타킹용, 수영복용 등으로 많이 활용하고 있다. 또한 스판덱스는 마모와 마찰강도가 고무보다 우수하고 탄성이 아주 좋고 리 쓰인다. (중략)

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소재 및 봉제 방법이 의료용 압박복 소재의 역학적 특성에 미치는 영향 (The Effects of Fabric and Sewing Methods on Mechanical Properties of Medical Compression Garments)

  • 석혜정;조신현
    • 한국의류학회지
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    • 제41권1호
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    • pp.60-70
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    • 2017
  • This study selects representative materials and sewing methods used to: produce medical compression clothing in domestic garment, understand physical properties according to sewing conditions before and after knitting, and propose a sewing method that can improve the functional properties of the medical pressure clothing for burn patients. This experiment used samples from two knitted fabrics of high-frequency, produced and sold among fabrics used to produce medical compression clothing in Korea. Sewing methods were N321, N502 and N601, most commonly used in the press clothing industry. Fabric A is most often reduced in EMT values when sewing N502. However, N321 and N502 are suitable sewing methods for the reliable to twist at the larger torsional shear and the larger 2HG, 2HG5 value. Fabric B is sewn with N601, the EMT value is the most elevated, LT value is also low and extensibility improves after sewing. N601 is shown as an appropriate sewing method for warp knitting. When sewing with N321, the torsional is stable but elongation is lacking. N502 is not good for torsional stability.

가공제 처리에 따른 신발용 경편성물의 마모특성 변화 (Changes on Abrasion Property of Warp Knitted Fabric for Footwear with Various Finishing Agents)

  • 전연희;정원영;안승국
    • 한국섬유공학회:학술대회논문집
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    • 한국섬유공학회 2003년도 봄 학술발표회 논문집
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    • pp.115-118
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    • 2003
  • 편성물은 루프형태로 얽혀있는 조직의 구조적 특성상 제편 과정에서 필요한 형태로의 성형이 용이해서 제품의 다양화를 기대할 수 있고 우수한 신축성과 드레이프성, 공기함유율, 구김안정성 둥이 우수하여 인체의 여러 가지 활동에 따른 구속감이 적어서 의류용 뿐만 아니라 신발 소재, 산업용 보강제등 그 활용도가 아주 높은 소재이다. 특히 경편성물은 직물과 편성물의 중간체적인 성향을 나타내고 있어서 제품생산시간을 단축할 수 있고 질적인 면에서도 직물과 아주 유사하여 후가공 처리에 유용한 소재이다[1]. (중략)

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Changes of Pulling-out Length and Shrinkage Ratio in Polyester/Spandex Power Net Warp Knitted Fabrics

  • Lee Choon-Gil
    • Fibers and Polymers
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    • 제7권1호
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    • pp.51-56
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    • 2006
  • Power net fabric is one of the highly extensible two-way fabrics. Power net structure shows special characteristics in the wearing of final functional clothes. This research evaluated effects of treatment temperature on proportional extensibility and shrinkage ratio of spandex at a given wale length. As treatment temperature increased, extensibility increased proportionally to the standard length of the sample and the shrinkage ratio in the direction of course and wale increased. The pulling-out length increased proportionally to the standard length of the sample. However it was affected by the effect of treatment time and temperature due to the thermal properties of spandex filament yarn.

Stitched 다축경편 복합재료의 기계적 특성 및 U 빔 성형 (Characterization of Stitched Multiaxial Warp Knit Fabric Composites and Channel Beam Manufacturing)

  • 변준형;이상관;엄문광;김태원;배성우;하동호
    • 한국복합재료학회:학술대회논문집
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    • 한국복합재료학회 2002년도 추계학술발표대회 논문집
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    • pp.280-283
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    • 2002
  • In the manufacturing of large scale composite structures, the cost-effective processing and the enhancement of structural performance are critical. One of the most effective ways for this purpose is to use stitched multiaxial warp knitted (MWK) perform in the resin transfer molding process. This study reports the effect of stitching on the mechanical properties of MWK composites, and the feasibility processing of the thick U-beam structure utilizing the stitched preforms. Permeability of the preform, viscosity and cure property of the epoxy resin have been measured. The results of resin flow analysis has been used in determining the gate/vent locations of the RTM mold. Cross-sectional observation of the channel beam prototype demonstrated that the resin impregnation was almost complete, except for some surrounding area of stitched yarns.

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파일 니트의 복합 후가공 기술에 의한 고품위 침장제품 개발에 관한 연구 - 원사 종류에 따른 원단의 물리적 특성 고찰을 중심으로 - (Development of Hi-Quality Bedding Items by Multi-Finishing System of Pile Knitted Fabrics - Physical Properties of Textile according to Yarn Types -)

  • 손은종;황영구;박신웅;최윤선;정성훈
    • 한국염색가공학회지
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    • 제29권4호
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    • pp.231-238
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    • 2017
  • There are many kinds of elements and processes for the development of high quality bedding products like fiber, high-temperature heat treatment, dyeing process, tenter drying with softening agent and multiple final finishing. Especially we examined the mechanical characteristic properties of fabrics according to different yarn types. The critical physical properties of the yarn consisting the pile knitted fabrics were obtained for the development of the hi-grade bedding items. The material property and the exhaustion behaviour of the developed pile knitted fabrics composing of different yarns were measured and observed. The physical properties of the developed fabric were evaluated through the material property analysis of the yarn, the physical nature of the pile knitted fabrics and the data of the exhaustion performance; tensile strength, tensile elongation, tearing strength, cross section of yarn types, dyeing properties etc. And then high-class of bedding items were knitted using the double raschel machine to make the pile knitted fabrics.

더블라셀 소재의 CAD에 의한 표현과 물성연구 (Analysis of CAD Design and Physical Properties of Double-raschel Spacer Fabric)

  • 최경미;김종준
    • 패션비즈니스
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    • 제23권1호
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    • pp.37-48
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    • 2019
  • WKSF (Warp-knitted spacer fabrics) knitted using a double Raschel machine is the three-dimensional knit that has vertically connected separate layers in loop structures. Because of its unique structure, the fabric is light, compressible and breathable. Owing to the high production speed, the use of the fabric is increasing in various areas. The purpose of this study is to establish the design process in the utilization of WKSF program and analyze the difference between WKSF and Neoprene as garment materials.. The study on the design related to WKSF has rarely been carried out because of the complexity of WKSF structure and the difficulties encountered in analyzing the structure and thread. Therefore, checking beforehand the simulation results similar to a final knit using the CAD program for WKSF can only enhance the efficiency of the design for the light knits. The conclusion drawn after designing the light knits using the CAD program and analyzing the pros and cons of WKSF through the various property evaluation techniques is as follows. The tension characteristic analysis results indicated that Neoprene specimen has the elastic transformation and resilience, thus behaving like an elastic product such as rubber. By contrast, in the event that clothing and fashion accessories are designed with WKSF, these products are kept in a boxy style fit so that the fabric can be applied flexibly to a curvy body line. In addition, WKSF is good in forming noticeably around a curvy body, because its resistance shear deformation is lower than that of Neoprene.