• 한국의류산업학회지
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• 제2권3호
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• pp.227-233
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• 2000

The purpose of this study was to develop the High Functional Covering machine and the Compound Twister to produce the high value added textile goods and to meet the consumer's needs. For the study, 8 yarns and 12 fabrics were made with two developed machines and the tensile characteristics of the samples were tested and analysed. The result indicated that the sample fabrics kept their elongation regardless of buffering process. Elongation of the sample yarns was higher than those of yarns made with a traditional covering method. Elastic recovery of the sample fabrics was more effected by the recovery rate than by the number of extension and the characteristics of the sample yarns and fabrics were comparable to the yarns and fabrics made with a traditional covering method in terms of the position of Spandex yarns in their yarn structure and buffering effect.

• 복식문화연구
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• 제12권1호
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• pp.168-181
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• 2004

This research on the present state of production and circulation of boseong-sambae, based on the materials, has been collected and arranged through the survey for one you, 2003. Boseong-sambae, the hemp fabric produced at Boseong, hold 35% of nationwide production volume and 50% of circulation volume. The products of hemp include hemp fabrics, shroud, contemporary Korean dresses and other household articles. Dried hemp skin, hemp thread and hemp fabrics are traded at the fair held in every five days, mostly by direct transactions which is trusted between the producers and consumers. A bolt of boseong-sambae includes 20 ja(a Korean foot, 60cm in length) of hemp fabrics in breadth of 35cm. The price of a bolt is approximately 2∼3 hundred thousand won. They are endeavoring to revive hemp fabric that the image was lost due to the cheap and coarse fabrics woven with Chinese thread since the latter half of 1990's. The advanced countries have invested positively in this business because hemp is an environment friendly material. Thus, a strong national support is demanded in this field facing a crisis due to the inundating of coarse hemp products from China, and the aging problem of the initiate, the reason of the discontinuation of the inherited technique. Through this research understanding tire present station and the problem of hemp production, the future research will be followed expecting the Renaissance of the Korean traditional hemp fabrics.

• Fibers and Polymers
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• 제5권4호
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• pp.280-288
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• 2004

Split-type nylon/polyester microfiber and polyester microfiber fabrics possess drapeability, softness, bulkiness, and smoothness, so that they can be applied in various industrial fields. In particular, these fabrics are able to absorb various organic solvents, and can be used as clean room materials. To investigate the chemical affinity between solvents and the compositional materials of these fabrics, the contact angle of thermally pressed film fabrics was measured with different solvents. The thermally pressed nylon/polyester fabric films showed a chemical attraction to formamide. The sorption properties of the microfiber fabrics were investigated using a real time testing device, and these tests showed that the sorption behavior was more influenced by the structure of the fibrous assembly than by any chemical attraction. The effect of the fabric density, specific weight, and sample structure on the sorption capacity and rate was examined for various organic solvents. The sorption capacity was influenced by the density and the specific weight of the fibrous assembly, and knitted fabric showed a higher sorption capacity than woven fabric. However, the sorption rate was less affected in lower viscosity solvents. On applying Poiseuille's Law, the lower viscosity solvents showed higher initial sorption rates, and more easily penetrated into the fibrous assembly.

• 한국의류학회지
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• 제35권11호
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• pp.1362-1376
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• 2011

This study examines the effect of the structural properties of F/W wool knit fabrics for woman's knitwear on the perceptions of textures and sensible images of consumers and present basic data for textile designing by analyzing the relationship among the structural properties, mechanical properties, objective hand measurements and preferences. A total of 12 kinds of knit fabrics were prepared and investigated in terms of the differences in the subjective, mechanical properties and objective hand measurements according to the structural properties of knit fabrics. The data were analyzed by t-test. The subjective hand attributes of wool knits through factor analysis are categorized into 6 factors. In particular, the 'active/comfort' factor is a meaningful result that reflects the unique characteristics of knit fabrics compared to woven fabrics. Mechanical properties and objective hand measurements have a greater effect on textures than on sensible images; in addition, the structural properties, 'gauge' was the most important factor to influence the subjective evaluation.

• 한국의류학회지
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• 제8권2호
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• pp.41-46
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• 1984

Ancient Korean and China litteratures show us that it has been long since people from humbler classes to king most commonly used bast fabrics as materials of their cloth. According to the record of these ancient litteratures, highly developed fine bast fabrics and those woven in figures were used as tribute between ancient Korea and China. In this study we will make a brief research of the history of bast fabric culture from ancient times to the Korea Dynasty in which the bast fabric culture flourished and reached the summit of prosperity. After having compared the bast fabric culture of ancient Korea with that of ancient China in which the bast fabric culture developed very much and bast fabrics were used more commonly as materials of cloth than any other fabrics, we could come to conclusions as follows. 1. Names were given to bast fabrics according to the kinds of bast fibers, the degree of fineness and the containing of figures: Ma-po, Jeo, Jeo-po, Bag-jeo-po, Moon-jeo-po, Po and Se-po. The number of 'Seung' which indicated the degree of fineness was attached to the top of each name to show how fine they are. 2. While the bast fabric of 30 Seung is known to be the most fine one of the ancient China, in ancient Korea fine bast fabric of higher than 30 Seung was woven. This fact proves that the technique of weaving bast fabrics of the ancient Korea was more highly developed than that of ancient China. 3. In ancient China the highest Seung number of the ordinary clothes which were put on after putting off livery of grief was regulated to be 15. But in ancient Korea, Sil-la, it was regulated to be 28. Judging from this fact, we may say that the consumption level of the ancient Korean people in cloth was higher than that of the ancient China people. 4. The reason why in ancient Korea the technique of weaving bast fabrics was so highly developed is suppoed to be that the ancient Korean people preferred elegant, refine and simple taste in cloth. 5. The excellent bast fabric culture of the ancient Korea flowed into ancient Japan. It proves that Korea played an important part in the history of textile development of the world.

• 한국섬유공학회:학술대회논문집
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• 한국섬유공학회 1993년도 ACT 93
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• pp.305-309
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• 1993

• 한국의류산업학회지
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• 제20권1호
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• pp.83-92
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• 2018

This paper investigated garment formability and fabric mechanical properties of one-way and two-way stretch fabrics according to the thermal treatment methods. One-way and two-way stretch fabrics were woven using 75d and 150d PET/spandex covering yarns and then these were wet thermal treated with four kinds of finishing machines. The fabric mechanical properties of these stretch fabrics specimens were measured and compared with the regular PET fabrics. The stretch ratio of one-way stretch fabric was ranged 12 to 26 percentage, 15 to 45 percentage for 2-way stretch fabrics and 4 to 10 percentage for regular fabrics. Garment formability of stretch fabric was superior than that of regular fabrics, in addition, 2-way stretch fabric was better than one-way. The garment formability of the stretch fabrics treated with CPB and Lava wet thermal machines showed the highest values, and the stretch ratio of these 2-way stretch fabrics was also the highest, which was ranged 20 to 45 percentage. This phenomenon was assumed to be due to high extensibility and bending rigidity with low shear modulus of the 2-way stretch fabric treated with CPB and Lava wet thermal machines. It was shown that the garment formability of stretch fabrics treated without dry thermal treatment was higher than that of dry thermal treated fabrics. It revealed that high stretch fabric was available under the condition of low process tension in the wet and dry thermal treatments of the finishing process, which makes high garment formability.

• 동력기계공학회지
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• 제14권5호
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• pp.17-23
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• 2010

In recent, the capacity of a commercial wind power has reached the range of 6 MW, with large plants being built world-wide on land and offshore. The rotor blades and the nacelle are exposed to external loads. Wind power system concepts are reviewed, and loadings by wind and gravity as important factors for the mechanical performance of the materials are considered. So, the mechanical properties of fiber composite materials are discussed. Plain woven fabrics Carbon Fiber Reinforced Plastics (CFRP) are advanced materials which combine the characteristics of the light weight, high stiffness, strength and chemical stability. However, Plain woven CFRP composite have a lot of problems, especially delamination, compared with common materials. Therefore, the aim of this work is to estimate the mechanical properties using the tensile specimen and to evaluate strain using the CNF specimen on plain woven CFRP composites. For the strain, we tried to apply to plain woven CFRP using Digital Image Correlation (DIC) method and strain gauge. DIC method can evaluate a strain change so it can predict a location of fracture.

• 대한가정학회지
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• 제40권7호
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• pp.15-24
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• 2002

In this work, the effect of fusible interlining on the appearance related properties and mechanical characteristics of Lyocell fabric after fusing was investigated. Two different types(20's and 10's) of Lyocell face fabric with six different interlining(by thickness and structure) for earth Lyocell fabric were examined. In order to establish the optimum fusing condition for the different face fabric and interlining, peel strength of each fused fabric was measured, which was dependent on the fusing temperature, pressure, and time. The characteristics related appearance and mechanical characteristics of each fused fabric were determined. The results are as follows: The peel strength was excellent, when the fabric was fused with the force of 3kgf/$textrm{cm}^2$ at $120^{\circ}C$ for 15seconds. Flex stiffness, G, 2HG, 2HG5(shear), B, 2HB(bending) of 100% Lyocell fabric 10's were higher than those of 100% Lyocell 20's. Flex stiffness, crease recovery, G, 2HG, B, 2HB of thicker woven interlining were higher than those of thinner woven interlining. Crease recovery of twill interlining were higher than those of plain interlining. In case of shear and bending properties, however, plain interlining was higher than twill interlining. Flex stiffness, crease recovery, G, 2HG, 2HG5, B, 2HB of nonwoven interlining were higher than those of woven interlining. In case of drapability, however, woven interlining was higher than nonwoven interlining.

• 한국잠사곤충학회지
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• 제28권2호
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• pp.65-73
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• 1986

본 연구는 Methacrylate monomer를 실크직유 속에서 중합시킴으로서 실크의 방추도를 향상시킬 목적으로 진행되었으며 이 목적을 달성하기 위하여 다음 몇가지 시료직물을 원포와 가공포로 분류하고 세탁을 반복함에 따른 방추도, 강연도 및 세탁수축도를 조사하였다. (1)Polyester, Geogette, 직물밀도…90cm-85g/m (2)Silk, Twill, 정사견, 박지, 직물밀도…90cm-90g/m (3)Silk, Twill, 정사견, 후지, 직물밀도…90cm-200g/m (4)Silk, Satin, 정사견, 박지, 직물밀도…90cm-90g/m 얻어진 결과를 종합하면 다음과 같다. (1)가공처리한 견직물들의 방추도는 원포의 것보다 약 10%의 증가를 보였다. (2)박지견직물의 방추도가 만족할 만치 개선되었으나 후지견직물은 다소 미흡한 결과이였다. (3)강연도는 가공견직물들의 촉감이 손상되지 않는 범위에서 가공된 사실을 확인하기 위하여 한 것인바 문제점이 없었다. (4)세탁후의 수축도는 모든 견직물이 polyester 보다 크게 나왔는데 그 이유는 견직물의 공장정리공정에 tenter처리로 물리적 증폭된 것을 원포로 썼기 때문으로 본다. (5)각 직물의 방추도, 강연도 및 방추도가 세탁반복에 따라 다소간 나쁜 방향으로 변하고 있는 결과를 보았는데 이것은 직유의 취화처리에도 원인이 있다고 본다. (6)결론적으로 견직물을 수지가공했다고 세탁해서 착용할 것이 아니라 역시 dry deaning을 하여 가공효과를 유지하는 것이 상책으로 본다.