• Korean Journal of Human Ecology
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• v.10 no.4
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• pp.333-347
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• 2001

The purpose of this study is to find out the washing methods specified on the care labels of vapor-permeable & water-proofed fabrics and to investigate the consumers' real washing methods in their home and their cognition. In this study, the condition of care labels on 35 products was investigated and consumers' washing methods and cognition were surveyed. The subjects were consisted of majoring clothing textiles' female, female student attending in other major and married-women. Data were analyzed SPSS 10.0. The major results were as follows : 1. The care labels of Vapor-permeable & waterproofed fabric products used in this survey followed the rule of KS K that is stated that care labels must include over 3 instructions. It was the most popular type of care labels to organize with washing methods, bleaching methods, weaving methods, drying methods, ironing methods. 2. Most consumers have vapor-permeable & waterproofed fabric products, but their consciousness of this fabric is low. The rate of consumer confirming the care labels was 76.6% but 67.8% of them answered they take care of textile products with their experiences. 3. Consumers' understanding of care instructions on care labels was investigated that most consumers understand domestic care instruction, but they didn't know almost all international one.

• Journal of the Korean Society of Costume
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• v.67 no.2
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• pp.88-100
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• 2017

This study is for the textiles of at Sun Am Temple and characteristic of embroidery. Tak Ui was composed of orange body and green upper cover, and had no strings. The body plate was covered with embroidery, with Gauze base, and upper part was appliqued, by cutting dragon pattern, cloud pattern on satin damask. The thread for embroidery was silk floss, silk twisted thread, rapped gold thread, and rapped silk thread. For padding, it was used cotton thread in the part of dragon's scales. It was used satin stitch, outline stitch, split stitch, couching, and counted stitch, etc. as method of embroidery. In particular, it embroidered counted stitch of diamond shape consecutively on the whole of Tak Ui, it does so with counted stitch of same effect of weaving Brocade in the part of cloud. Besides, it is one of the characteristic for couching rapped silk thread. Such lead embroidery is the popular method in the Ming dynasty of China, in the 16~17 century. The design of Tak Ui is dragon, cloud, and wave in the theme. In the center, 'Seong-su-man-nyeon' was placed on the heads of dragon. This is similar to Dragon Robe of Four-petalled medallion patterns, period of Ming dynasty in China. Therefore, it confirmed that Tak Ui was remodeled the embroidered textiles, made for royal robe, originally, with Tak Ui at temple.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.31 no.2 s.257
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• pp.245-252
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• 2007

Since the new millennium, truss PCMs(Periodic Cellular Metals) have drawn attention because of their superior specific stiffness, strength and multi-functionality. Prior studies have focused on the structural design and optimization. Kagome truss PCM has been proved to have the higher resistance to plastic buckling, more plastic deformation energy and lower anisotropy than other truss PCMs. In this study, we introduce a new idea to fabricate multi-layered Kagome truss PCM from continuous wires which can gain high strength as in piano wires and can be controlled to be defect free owing to drawing process. The relative density, the stiffness and the strength under bending and compressive load are estimated through elementary mechanics and compared with the results from experiments and FEA. The failure mechanisms are analyzed, and also mechanical performance and production are discussed.

• The Research Journal of the Costume Culture
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• v.19 no.1
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• pp.71-82
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• 2011

This paper examined the kinds and characteristics of leather and also analyzed the expression techniques and characteristics of leather in contemporary fashion. The objective of this study lies in re-interpreting the current location of leather in contemporary fashion design, enlarging unlimited potential expression fields of leather, and at the same time, helping create new viewpoints and expression types of leather. For this purpose, this paper examined the kinds and characteristics of leather through the existing literatures, and it also carried out positive analysis of the expression techniques and characteristics of leather clothes through local and foreign fashion magazines and collection papers, such as Gap, Vogue, and Mode & Mode, focusing on the works presented in the fashion collections after 2000. Leather in contemporary fashion is expressed in different colors through dyeing. Through various expression techniques such as wrinkles, ruffle, stitch, embossing, quilting, patchwork, holing, nailing, cutting, laser cutting, fringe, weaving, printing, and collage, leather breaks the fixed ideas of itself and further, it makes the images of fashion design affluent. Leather clothes, which are made through various expression techniques, have some characteristics. First, leather clothes emphasize women's voluptuous beauty. Second, leather clothes create a decorative effect through mixture of materials and various expression techniques. Third, through the feel of materials and the emphasis of shapes, primitive beauty is expressed.

• The Research Journal of the Costume Culture
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• v.19 no.4
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• pp.851-862
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• 2011

The purposes of this study were to identify the material manipulation techniques for paper garments and their characteristics. Reference books or articles were reviewed and catalogues from paper garments exhibition or show, brochures from Paper Museums, and internet sites of paper fashion designers were selected for analysis. Paper has much similarity with natural cellulose textiles in appearances and contents but has much distinct differences in their physical characteristics such as strength, durability, washability, and resilience, and could be treated as one category of textiles. Paper garments were developed with practicality and functionality for the poor and Buddist monks at first but progressed into more aesthetics later for the rich. Paper garments could be divided into 4 categories of garments made of paper, paper thread fabric or knit, modified paper with wanter, and beaten bark of mulburry bush. Paper can be manipulated by coloring & cutting, bonding, or quilting and bonding or quilting can reenforce the strength of paper but cannot increase flexibility. Paper manipulated by weaving or knitting has very similar physical properties as cotton or linen and ideal for summer textiles. Paper can be manipulated with water to make a paper paste and bodice can be moulded with paper paste or Joomchied. Also we can express beautiful patterns on the surface of paper by washouting. Konnyaku paste or lacquer can be used to make paper garments to be waterproof.

• Textile Coloration and Finishing
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• v.17 no.6 s.85
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• pp.42-50
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• 2005

Silk fabrics are widely used as high quality cloth, interior, quilting and bedding materials because of having excellent touch, drape, resilience and low specific gravity characteristics. But, many waste silk materials are produced during the reeling, spinning, weaving, dyeing and finishing processes. From this fact, the recycle of waste silks is interested in studying for the application of industrial textile materials such as filter, oil absorbent and wound protector. Thus, this research has surveyed the decolorizing and carding characteristics in order to recycle the colored waste silk materials. As the results, the carding condition of waste silk fabrics was optimized with different fiber lengths and curding passage. In addition, the fiber failure mechanism from the wasted silk microdamage caused by carding process was investigated. Also it was found that longitudinal and transverse cracks, abrasion and pilling were formed on the surface of wasted silk fibers.

• Journal of Welding and Joining
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• v.16 no.3
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• pp.102-110
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• 1998

The horizontal fillet welding is prevalently used in heavy and ship building industries to fabricate the large scale structures. A deep understanding of the horizontal fillet welding process is restricted, because the phenomena occurring in welding are very complex and highly non-linear characteristics. To achieve the satisfactory weld bead geometry in robot welding system, the seam tracking algorithm should be reliable. The number of seam tracker was developed for arc welding automation by now. Among these seam tracker, the arc sensor is prevalently used in industrial robot welding system because of its low cost and flexibility. However, the accuracy of arc sensor would be decreased due to the electrical noise and metal transfer. In this study, the signal processing algorithm based on the neural network was implemented to enhance the reliability of measured welding current signals. Moreover, the seam tracking algorithm in conjunction with the signal processing algorithm was implemented to trace the center of weld line. It was revealed that the neural network could be effectively used to predict the welding current signal at the end of weaving.

• Journal of Welding and Joining
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• v.16 no.3
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• pp.129-140
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• 1998

An interface system was developed to offer the welding capability to a robot controller which had not any embedded function for arc welding before, and also an arc sensor algorithm was proposed for weld seam tracking of the welding robot. For the interface system between the robot controller and welding equipments, data communication software and interface connections were composed. The interface system was mae to correspond welding condition, correction data, operation sequence and current status with the robot controller by mutual had shaking and digital signal transfer. Graphic user interface program developed under the environment of windows made it easy to monitor data communication and operation status, and to control welding and sensing sequence. Arc sensing algorithm proposed in this study to compensate torch position error was based on a fuzzy logic with the variables of current difference and current differenced change at torch weaving extremities. The developed interface system could be successfully implemented in between welding equipments and the robot controller, and showed normal status and exact function in data and signal communication between the systems. The whole robot welding system was then examined to verify its welding and seam tracking capabilities in horizontal fillet, vertical fillet, and 3-dimensional fillet weldment. The experiments revealed sound weld bead shapes and also good seam tracing results.

• Journal of Welding and Joining
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• v.25 no.6
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• pp.44-52
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• 2007

A welding process of a lifting lug for lifting heavy objects is one of the important welding processes directly related to the safety in shipbuilding. Welding a lifting lug is done in the manually and takes about forty minutes. Working environment for the lifting lug welding is very poor due to an radiant heat and a harmful fume. The purpose of this study is to develop methods of multi-pass welding using the lifting lug welding robot system. This study shows robot welding methods to achieve proper corner, straight and connection welding and an effectiveness of application.

• Textile Coloration and Finishing
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• v.7 no.4
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• pp.1-7
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• 1995

A new dyeing M/C, called Green-flow was developed in this study. A new M/C was applied to mixed air flow method combined aerodynamic technology to fabric speed power. The polyester fabric was dyed of beige color with a new M/C and Luft-roto dyeing M/C made by Thies Company(German) with the same dyeing condition (liquor ratio=1 : 3.5, Fabric speed = 450yds/min.) for comparision. The results showed that the color fastness to dye and drapability of the fabrics dyed with both M/C were almost the same and the levelness and T.H.V of the fabrics dyed with Greenflow were better than those dyed with Luft-roto M/C. In addition, it is found that the fabric speed of 502yds/min was a suitable for both M/C.