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스프레이접착제 부직포의 특성화 연구(I)-압축특성과 인장특성-
박태영,전한용,주창환,Park, Tae-Yeong,Jeon, Han-Yong,Ju, Chang-Hwan 한국섬유공학회 1996 한국섬유공학회지 Vol.33 No.4
Abstract : In a Spray-Bonded Nonwoven(SBN) system, small particles of adhesive bonding agent are applied to the fibrous layer in the form of a water dispersion. Since the characteristics of SBN are with bulkiness, highlight, good warmth and porosity, SBN is usually used as apparel padding, insulation, quilting flaterial and bedding. And so it is important to evaluate the compressional and tensile properties of SBN in considering application of end-use. From this fact, we have studied these properties of SBN made with different fibers, blend ratio, fabric weight and washing condition and found the facts as follows: (1) In preliminary study, heat treatments on the fabric surface are allowed SBN to be dense and full, and the compressional properties are dependent on the SBN structure with fiber characteristics, (2) The binder can not be readily penetrated onto the microflber web and its penetration is concerned with web thickness, (3) Blended binder fiber is a factor to increase the tensile strength of SBN, (4) For SBN before and after laundering, the compressional properties show a big difference for the SBN with microfiber and hollow fiber, and the tensile strength is generally decreased with increasing number of laundering.
Photoinduced Graft Polymerization of Acrylic Acid onto Isotactic Polypropylene
박태영,김상율,송석규,Park, Tae-Yeong,Kim, Sang-Yul,Song, Seok-Gyu The Korean Fiber Society 1989 한국섬유공학회지 Vol.26 No.3
Grafting of acrylic acid(AA) onto isotactic polypropylene(iPP) film was investigated. Graft polymerization was carried out with ultraviolet(UV) irradiation method in the presence of benzophenone(BP) as a photoseensitizer. The most suitable reaction temperature was 7$0^{\circ}C$ for the maximum grafting yield. Moisture regain and swelling properties of grafted films were markedly improved by the grafting of AA monomer. The crystallinity of grafted film was evaluated from dsc and X-ray diffraction measurement. It was found that the crystallinity decreased with increasing grafting yield up to 100% but decreased sharply above 100%. Infrared spectra also showed the decrease of crystallinity. Mechanical properties of grafting films were also examined by tensile testing machine.
워터제트를 응용한 섬유집합체 결합에 관한 연구 (I)-섬유결합의 메카니즘-
박태영,주창환,최영엽,Park, Tae-Yeong,Ju, Chang-Hwan,Choe, Yeong-Yeop 한국섬유공학회 1991 한국섬유공학회지 Vol.28 No.2
The effect of processing parameters on the structure and properties of hydroentangled nonwovens has been investigated for a newly designed nonwoven system, so called spunlace nonwoven process. Such a system is the nonwoven manufacturing process that empolys jets of wrote to entangle fibers and provides fabric integrity. Unlike the characteristics of general nonwovens produced by needle-punching, chemical bonding and thermal bonding methods, the outstanding characteristics of hydroentangled fabrics are soft, drape, comformability and relatively middle strength. In the present work, the hydroentangled fabric has been made with 100% ration and 50% rayon/50% polyester blended web and produced by this new system with different processing parameters such as pressure and injecting angle. We evaluated breaking stress of nonwoven fabrics and analysed to relate this property to nonwoven structure, i.e., aperture size, and aperture shape and fiber arrangement. Finally, an attempt is made to establish 'process-structure-property' relationship model to help engineering spunlace nonwovens for specific end-uses and to make optimum condition for the new water-jet fiber entanglement system.
워터제트를 응용한 섬유집합체 결합에 관한 연구(II)-공정 인자와 섬유결합력-
박태영,주창환,최영엽,Park, Tae-Yeong,Ju, Chang-Hwan,Choe, Yeong-Yeop 한국섬유공학회 1991 한국섬유공학회지 Vol.28 No.12
Hydroentangled nonwovens are alternatively called water-jet 'entangled' or 'spunlace' nonwovens. The hydraulic entanglement system is new technique for consolidating individual fibers in a web by means of high pressure water without the need for binder or/and other supplementary treatment. In recent, this system has been very interested in the field of nonwoven industry, since hydroentangled nonwoven fabrics have the patterned structure similar to woven fabrics and keep soft and drape characteristics. In this study, hydroentangled nonwovens have been made with 100% rayon and 50% rayon/50% polyester blended web and produced by a newly designed nonwoven system with different processing parameters. The manufacturing factors considered are injecting height, feeding speed, and passage number. Effect of processing parameters on the breaking strength of nonwovens has been investigated and it is compared with the morphological structure of nonwovens, i.e., aperture size and fiber density.