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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Textile Science and Engineering
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Journal DOI :
The Korean Fiber Society
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Volume & Issues
Volume 42, Issue 6 - Dec 2005
Volume 42, Issue 5 - Oct 2005
Volume 42, Issue 4 - Aug 2005
Volume 42, Issue 3 - Jun 2005
Volume 42, Issue 2 - Apr 2005
Volume 42, Issue 1 - Feb 2005
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Synthesis and Characterization of Polyesteramide Based on Poly(trimethylene terephthalate) Using Bisesterdiamide 'T3T-dimethyl' as a Comonomer
Prabu Arun Anand ; Lee Jong Soon ; Oh Tae Hwan ; Kim Kap Jin ;
Textile Science and Engineering, volume 42, issue 6, 2005, Pages 341~348
In order to impart new functions to poly(trimethylene terephthalate) (PTT) and to remove several well-known disadvantages of PTT such as changes in physical properties with ageing especially for undrawn and/or partially drawn PTT yarn a new type of polyesteramide based on PTT, poly(trimethylene terephthalate-co-trimethylene terephthalamide) [P(TT/TA)], has been synthesized using dimethyl terepthalate (DMT), T3T-dimethyl ((benzoic acid, 4-4'-[1-2-propanediylbis (iminocarbonyl)]bis-dimethyl ester) and 1,3-propanediol as monomers and tetraisopropyl titanate as a catalyst through a DMT process. The feed ratio of T3T-dimethyl was varied from
. The content of TA unit in P(TT/TA) was lower than the feed ratio of T3T-dimethyl. Intrinsic viscosity and melt viscosity of P(TT/TA) increased with increasing content of TA unit. Thermal properties of P(TT/TA) were also measured as a function of TA content using DSC and TGA.
Analysis of the Traverse Cam Device in a Spandex Yarn Splitting Machine
Choi, Sung-Ryul ; Lee, Jong-Ong ; Shin, Jae-Kyun ;
Textile Science and Engineering, volume 42, issue 6, 2005, Pages 349~354
The traverse cam system in a spandex yarn splitting machine is an element to wind the splitted yarn plainly on a winding drum, which is equipped mainly with a differential gear and four-bar linkages. As the cam system is working under a high speed, the dynamic balancing and precise kinematic mechanism is important to enhance working efficiency and reduce vibration problems. In this study, a method to evaluate the mechanism precision and dynamic balance is suggested. Applying this method to the developed traverse cam system showed this method can be effectively used to develop estimate the cam system in the design processes before manufacturing.
Weight Reduction and Dyeing Properties of Sea-island Type PET Supermicrofiber Fabrics
Koh Joonseok ; Park Jong Ho ; Lee Kwon Sun ; Kim Sung Dong ;
Textile Science and Engineering, volume 42, issue 6, 2005, Pages 355~362
The weight reduction properties and dyeing properties of sea-island type PET supermicrofiber were compared with those of normal sea-island type PET microfibers. The alkaline dissolution behavior of microfibers were monitored using a cationic dye staining method. The dye uptake of finer microfibers commences at lower temperatures and showed faster rate of dye uptake. The build-up and wet fastness properties of disperse dyes on finer microfbers were relatively poor since more dye was required to achieve a given depth of shade due to the large surface area. Also, the low temperature dyeing of microfibers produced higher color yield than normal high temperature dyeing because of less dye migration to the coarser fibers during dyeing.
Effect of Treatment Methods on the Properties in the Crosslinking Reaction of Cotton Fabrics with BTCA/PUD
Kang Suk-Hwan ; Cho In-Sik ; Hwang Eui-Hwan ; Hwang Taek-Sung ;
Textile Science and Engineering, volume 42, issue 6, 2005, Pages 363~369
Cotton fabrics were treated with BTCA and BTCA/PU to improve the winkle recovery property. Various concentrations of BTCA and BTCA/PU were treated on cotton fabrics by UV irradiation (UV intensity) and dry-cure technique (curing temperature). The crosslink reaction could be confirmed by ATR-FTIR spectroscopy. The physical properties such as add-on, WR rating, tensile strength and initial elasticity after the fabric treatment were also investigated. As a result of this study, fabrics treated by UV irradiation appeared to have higher add-on and lower tensile strength than that treated by heat treatment. BTCA/PU, containing PU as an additive, can improve the fabric stiffness resulting from the crosslink reaction in both UV irradiation and heat treatment. It was confirmed by tensile strength and initial elasticity.
Functional Treatment of Recycled Ultrafine Fibrous Nonwovens
Lee Shin Kyung ; Kim Seong Hun ; Lee Kyung Ju ; Shin Kyung In ;
Textile Science and Engineering, volume 42, issue 6, 2005, Pages 370~375
Recycled ultrafine fibrous nonwoven consisted of low melting polyester fiber and ultrafine fibrous scrap in the proportion of
. The recycled ultrafine fibrous nonwoven was treated with a solution of an antistatic agent(cationic, anionic, and nonionic) and flame proofing agents by pad-dry method. Antistatic property, flame proofing property, water and oil absorption properties of the recycled ultrafine fibrous nonwovens were analyzed. To determine the antistatic property, electrostatic charge, half-decay time and surface electric resistance were measured. The recycled ultrafine fibrous nonwoven, particularly treated with nonionic antistatic agents, showed excellent antistatic property, For the flame proofing property, as percent add-on of flame proofing agents increased, the distances of carbonization of recycled ultrafine fibrous nonwovens decreased. Point bonded nonwoven with 15 mm interval bonding exhibited water and oil absorption of
Bonding Behavior of Carbon Black/Nylon Hybrid Nanofiber Webs via Microwave Heating
Shin, Dong-Ho ; Lee, Youn-Eung ; Joo, Chang-Whan ;
Textile Science and Engineering, volume 42, issue 6, 2005, Pages 376~382
Most thermoplastic fibrous materials have low dielectric constant enabling direct bonding of the composing fibers by microwave heating. However, the bonding capability between nanofibers can be highly increased by blending additives having high dielectric constant. In this paper, nylon 66 nanofibers were produced with the carbon black particles, which have high permittivity, by the electrospinning method. The produced carbon black/nylon 66(CB/N) hybrid nanofiber webs of different carbon black contents were heated by the microwave system for different treatment times. The morphological structure and strength properties of CB/N hybrid nanofiber webs were investigated to verify their bonding behavior. The results showed that the bonding strength of pure nylon 66 nanofiber webs prepared by microwave heating was weak, but the bonding area at the contact point of nanofibers having carbon black increased with increasing microwave treatment tine. In spite of increasing bonding area, the bonding strength of CB/N nanofiber webs does not increase due to the decrease in fiber diameter.
Theoretical Modeling and Experimental Fitness on Sound Absorption Characteristics of Nonwoven Fabrics
Lee, Youn-Eung ; Joo, Chang-Whan ;
Textile Science and Engineering, volume 42, issue 6, 2005, Pages 383~390
Nonwoven fabrics which have three dimensional microporous structure have been widely used for noise control in the civil and architecture fields. In this study, the sound absorption properties of the nonwoven fabrics produced by different manufacturing conditions were investigated using an impedance tube method. For the purpose of substitution of conventionally used sound absorber materials with polyester nonwovens, a theoretical model based on the microporous structure of nonwovens was established to predict the sound absorption coefficient(NAC) of nonwoven materials. In conclusion, it was found that the NAC significantly depended on the fiber fineness, web orientation and nonwoven thickness. The nonwovens composed of fine fiber, randomly oriented web and which have higher thickness showed definitely higher NAC than those of the opposite cases. Furthermore, the theoretical model established for the NAC of nonwovens was in good agreement with the experimental results, especially in the high frequency region.
The Influence of Structural Characteristics of Rear Acoustic Absorbents on Sound Absorption Capability
Oh, Kyung-Wha ; Yoon, Jae-Hee ;
Textile Science and Engineering, volume 42, issue 6, 2005, Pages 391~397
In this study, the effects of the thickness, fiber diameter, and solidity of rear acoustic absorbents on sound absorption coefficient were investigated. Polyester
nonwovens (needlepunching) consisting of different fiber fineness were selected for rear acoustic absorbents. The capacity of sound absorption was measured by the two-micro-phone impedence measurement tube (KS F 2814), and sound absorption coefficient was calculated. Air permeability (ASTM D 737) was measured to estimate the structural characteristics of acoustic absorbents. It was found that the amount of sound absorption by rear acoustic absorbents increased throughout the whole frequency range with increasing thickness and solidity, and with decreasing fiber diameter, which results from the reduction of air permeability. Based on the results of this study, it is expected that efficient sound absorption capacity through the whole frequency range can be achieved by applying various combination of rear acoustic absorbents to the interior of buildings.
Analysis of Isothermal Crystallization Behavior of PTT/PTN Blends Using a Polarizing Microscope
Choi, Jae-Won ; Cha, Hee-Cheol ; Kim, Young-Ho ;
Textile Science and Engineering, volume 42, issue 6, 2005, Pages 398~404
Isothermal crystallization behaviors of poly(trimethylene terephthalate) (PTT), poly(trimethylene naphthalate) (PTN), and PTT/PTN blends were analyzed using a polarizing microscope equipped with a hot-stage. As the melting time at
of PTT/PTN blends increased, the crystallization proceeded slowly due to the copolymer formation which resulted from the ester interchange reaction at the elevated temperature. PTT and m-rich blends formed spherulites over the temperature range of experiment, but PTN formed spherulites only at lower crystallization temperatures such as
. PTN and PTN-rich blends formed distorted spherulites at high temperatures such as
, which seemed to result from the
formation of PTN at that temperature. The radial growth rate of the spherulite formed during the crystallization was obtained by the measurement of radii of the spherulites. The radial growth rate decreased as PTN content in the blends increased.
Durability Test of E-Glass Fiber/Vinylester Resin Composites for Specific Environments
Lee Seung-yul ; Park Chang-Ho ; Seo Sang-Ha ; Kim Young-Un ; Kim Hyeong-Yeol ; Park Young-Hwan ; Choi Hee-Lack ; Moon Chang-Kwon ;
Textile Science and Engineering, volume 42, issue 6, 2005, Pages 405~411
The effect of various environmental conditions on the durability in E-glass fiber/vinylester resin composites has been investigated using tensile test specimen of strand type. Tensile strength decreased with increasing immersion time in all environmental conditions. The extent of decrease was more severe in the case of alkaline condition than deionized water condition regardless of temperature. We found that the decrease in tensile strength during the immersion time in various environment conditions was mainly caused by the degradation of the interface between glass fiber and vinylester resin and damage of glass fiber surface.