The purpose of the study was to suggest a standard sizing system for women's clothing. For the useful sizing system, it was necessary to define body types and size range of women. With the definition a sizing system has been developed. The study was carried out as follows: First, the relative articles and sizing systems of other countries were studied. Second, questionnaire survey was carried at 10 companies, all of which had 2 brands, one for young miss, the other for higher age group. The survey was to find out problems of the current sizing systems in Korea. Finally, with the raw data of'92 National Anthropometric Survey, a sizing system was developed, whose significant advance from the existing sizing system was introducing the concept of body type and the degree of fitness of garments. The development of the sizing system has been done with following stages. 1. Define of the control dimensions and the size interval. 2. Depending on the frequency of dimensions, set the size range to be included in the sizing system Stature 145∼170cm, Bust Girth 73∼103cm, Waist Girth 58∼85cm, Hip Girth 82∼102cm. 3. Categorise the body types depending on the Drop Value, which is the difference between the hip ink and bust girth(F type . Full hip, Ntype: Normal hips, 5 type. Slim hip). 4. For each garment types, the size charts were devised depending on the frequency. 5. From the developed size charts, the secondary dimensions were determined.

The effect of annealing and dynamic crystallization condition on the morphology and melting behavior of segmented block copolyethereslers based on poly(butylene terephthalate) (PBT) and poly(tetramethylene ether glycol) (PTMGT) was examined. The response of copolyetheresters to annealing was found to depend on the hard segment contents. The overall crystallinity BL increased with hard segment content. Upon annealing, Xc also increased for samples with high hard segment content, while it remained constant for samples with low hard segment content. It was explained from a viewpoint that crystallization during annealing was highly dependent on the crystallizable hard block length. The effect of dynamic crystallization condition on the phase structure of copolymer was also examined at the cooling rates of 7, 20, and 5$0^{\circ}C$/min. For all the cooling rates examined both the overall and the hard segment crystallinity increased with hard segment content showing smaller values than those of annealed samples. The samples crystallized at 2$0^{\circ}C$/min cooling rate always had higher crystallinity and lower amorphous fraction of hard segment than the samples crystallized under the cooling rates of 7 and 5$0^{\circ}C$/min. This could be explained as a result of competition between a quasi-equilibrium crystallization profess and a kinetically controlled non-equilibrium crystallization process.

The properties of the foam dye bath assisted with solvent were investigated by determining the blow ratio, half drainage time, penetration time, solubility of dye and K/S value for the polyester non-woven fabrics. The blow ratio was not influenced with the increase of mixing head velocities, but the half drainage time increased with them. The blow ratio, haw drainage time and the penetration time were not Breathy influenced by the iso-propyl alcohol that was added in the foam solution. However, the solubility of the dye was influenced by the ism-propyl alcohol. The dyeability of polyester non-woven fabric in the foam dyeing was greatly enhanced by adding the iso-propyl alcohol.

Films of vinylidene fluoride - trifluoroethylene (VDF-TrFE ) copolymer were dehydrofluorinated in aqueous sodium hydroxide solutions by phase transfer catalysis(PTC). Conjugated C=C double bonds in the polymer back-bone were bonds in the dehydrofluorination of VDF-TrFE copolymer. The color of film became brown and finally black with rigid double bonds during the PTC reaction. It was found from UV/VIS spectroscopic measurements that the length of conjugated double bonds of dehydrofluorinated VDF-TrFE copolymer was longer than that of dehydrofluorinated poly(vinylidene fluoride) . It was ascribed to the reaction activity due to the difference of solubility parameter between the sample and reaction solution. Thermal behavior by DSC analysis showed that the dehydrofluorination occurred at least in the crystal surfaces as well as in the amorphous chains.

Liquid phase photografting of acrylic acid(AA) was carried out onto poly(ethylene terephthalate) films and fabrics on which benzophenone(BP) had been previously coated. The effects of various reaction conditions were investigated. As Ah concentration was increased, the yea yield was increased up to a specific value and then decreased, and the even of BP concentration showed the same tendency. It was also found that the graft yield increased with UV irradiation time and reaction temperature. The effect of dissolved oxygen in the reaction solution, photoyafting without using a photosensitizer, pre-irradiation photografting method and the kinds and concentrations of solvent on the graft yield were investigated. The changes in hydrophilic properties, dyeability, thermal properties and morphology of grafied films and fabrics were compared with the original samples.

The critical concentrations for high tensile strength and modulus polyacrylonitrile(PAN) were measured on dimerhylformamide solution of PAN's which had various kinds of average molecular weights. These critical concentrations decreased with increasing molecular weight and were nearby placed at the same viscosity regardless of molecular weight. The PAN films were cast from the solution of critical concentrations. Two kinds of uniaxially drawn films were prepared; one was drawn in boiling water and the other was drawn in dry heat again artier drawn by 3 limes in boiling water. The structures of the drawn films were investigated by X-ray dinractometer, thermomechanical analysis, dynamic mechanical analysis, and tensile measurements. From this study, it has been found that the larger the molecular weigh of PAN increases, the higher the draw ratio is required to cause the crystallization upon drawing together with the increase in fibrillization of film surface. The degree of the overall crystallization and the molecular stress and internal defects in amorphous region increased with increasing molecular weight of PAN.

The purpose of the study was to determine the effect of mixing rate of PET materials with SiO2 on the particle distribution state, to determine the effect of the treatments on the crystalline structures, thermal and mechanical properties of the mixed materials, and to determine the effect of surface treatments of SiO2 with the silane coupling agents on the surface properties of mixed materials. Measurements were carried out with Image analyzer for particle distribution state, X-ray diffractometer for the crystallinity, DSC for thermal properties and Instron for mechanical properties, respectively. According to results the following conclusions could be made : 1) Relatively uniform panicle distribution of the mixed materials was obtained by melt blending after the fillers were mixed with the PET powder sufficiently. 2) Using the particle size of the fillers which was remarkably greater than that of the crystallite, the crytallization of the polymer was hindered by the excess content of the fillers 3) Tm of the mixed materials was lowered with increasing of SiO2 content, and their tendency was more notable when mixed materials were treated with silane. 4) The initial modulus of mixed materials was increased with SiO2 contents, and the mixed materials became brittle and so tensile strength of them was decreased with increasing SiO2 contents.

This study focuses on factors that explain the tactile response generated in touching textile fabrics. Surface properties, which are especially associated with softness and smoothness of fabrics, are among the most important components of the fabric hand. Eight pairs of bipolar descriptors, including soli-hard, smooth-rough, cool-warm, etc., were used in rating the surface properties in a blind test. Principal component analysis of the result shows that two sets of primary components explain subjective reactions to fabric surface qualities: One set associates with the qualities of smoothness, slipperiness and coolness while the other associates with the qualities of softness, springiness and warmth.

In order to modify the properties of poly(ethylene terephthalate) (PET), P(ET/CL) copolymers were synthesized by addition of polycaprolactone(PCL) in the polycondensation of PET oligomers. The feed compositions of PCL was varied up to 60%(wt) of total reactants to obtain copolymers containing up to 58% CL units. Properties of copolymers were determined by IH and 13C-NhtR, DSC, GPC, TGA and intrinsic viscosity experiments. IH and 13C-NMR analysis of copolymers revealed new peaks assigned to the alkyl group adjacent to the ester groups whose environment is different from those in PET or PCL. NMR analysis of the extract evolved during the transesterification reaction showed the presence of a caprolactone derivative along with ethylene glycol. Detailed analysis of the NMR results suggest that copolymerization of P(ET/CL) has indeed occurred through transesterification. At the higher feed compositions of PCL, the intrinsic viscosity of the resulting copolymers tended to be higher. Copolymers from 40 and 60%(wt) PCL feed composition were of higher molecular weight than PCL. Copolymers exhibited a single Is which decreased with increasing PCL lied composition suggesting that the respective monomers are distributed in a random manner, rather than in blocks. This also suggests that under the conditions of copolymerization employed transesterification between PET oligomers and polycaprolactone occurs extensively. Copolymers of PCL feed composition 30, 40, 60%(wt) do not exhibit crystallization or melting and appear to have a potential as elastomeric material.