• Fashion & Textile Research Journal
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• v.17 no.1
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• pp.102-115
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• 2015

Due to the diversification of lifestyles and the rapid growth of Internet environments since the 1990s, mass customization has been recently accepted as an important trend in the area of clothing and all other areas. In response to mass customized clothing products, global clothing product brands are introducing systems for mass customization such as the application of digital fashion systems that introduced IT technologies such as CAD and 3D scanners. However, studies of planning factors for clothing products applied with digital fashion systems in the area of mass production of clothing products are insufficient. Therefore, this study was intended to analyze the lifestyles of 20-30s that are expected to have the highest demand for clothing applied with digital fashion systems and present basic planning factors according to lifestyles. Through the analysis, three groups that have one of fashion pursuing type, sensory information pursuing type, and practical function pursuing type lifestyles were derived. Based on this result, consumer demand for digital fashion systems and basic factors for product planning were analyzed to present basic planning factors for digital fashion system based customized clothing by lifestyle group. This study is meaningful in that it provided basic data for product planning through digital fashion systems by analyzing the awareness, preference, necessity, and planning factors of digital fashion systems through the analysis of lifestyle types.

• Journal of the Korean Society of Clothing and Textiles
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• v.32 no.7
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• pp.1160-1168
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• 2008

The purpose of the study was to examine the effect of motif categories and motif colors on evaluating impressions of dress wearers. The research was conducted on a quasi experimental basis, with subjects numbering 187 male and 207 female college students. Data were collected in the period from march 19th to march 31st, 2007. A set of stimuli of dress wearers and semantic differential scales were developed. The stimuli were thirteen photographs editing by Youngwoo CAD system. Variables included; (a) motif colour(red, blue, achromatic and white) (b) motif categories(flower, paisley, stripes, zebra effect and plain). The semantic differential scale to measure impressions of dress wearer stimuli included 22 sets of hi-polar adjectives. The data were analysed by factor analysis and ANOVA and the major finding were as follows. Four factors emerged to account for dimension of impression. There were salience, attractiveness, comfort and femininity. The motif category effected on the four impression dimensions while the motif color effected on salience, comfort and softness sensory dimensions, and the results supported the gestalt theory of the impression perception.

• Fashion & Textile Research Journal
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• v.6 no.5
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• pp.634-640
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• 2004

Nowadays, the use of apparel CAD system is important to the mass production of ready to wear. Especially, computer-based grading is the most important process to improve the fitness of clothes and to reduce the time needed to make various size pattern. The purpose of this study was to suggest a standard sizing system for high school boys' pants and to suggest a grading method according to the sizing systems. The subjects were 217 high school boys of 16 to 18 year-old. The size intervals of waist girth and hip girth were 3 cm and 4 cm respectively. The sizing system, which had frequencies more than 4%, was classified 8 cases. Among them, 71-92 and 71-88 size were the most frequent size and were adopted the basic size for the two types of grading. According to the sizing system, hand-made patterns were manufactured. By measure of the each part of the slacks, 4 size's new grading-rule patterns were developed by each size. This result will contribute to clothing fitness of consumer and the amount of production.

• Fashion & Textile Research Journal
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• v.14 no.1
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• pp.1-12
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• 2012

This research was analyzed regarding comparing features of expressions between clothes in movie, , and cyber clothes that were made by Marvelous Designer2 which is a design CAD. This research was studied to experiment an expressing possibility of clothes simulation software which was developed currently. Therefore, we picked clothes that are good at movement and detail in the movie. The dress theory of the renaissance which is the period background of movie, was considered and studied as pattern, silhouette, material, color, detail and animation. The movie's dresses are made with 3D virtual and compared so 3D virtual clothes's benefits and weaknesses can be analyzed. As a result, we found that 3D virtual dress can show the real movie's feature accordingly with current developed IT standard. This will assist a development in fashion industry and become a new indicator for 3D movie clothing.

• Fashion & Textile Research Journal
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• v.8 no.3
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• pp.303-309
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• 2006

This study intended to compare and analyze marking efficiencies of basic slacks, based on different cloth and production conditions, the width of cloth, the number of marking pieces and the direction for marking deployment and proposed an efficient marking method. The results were as follows. On the whole, the marking efficiencies increased with increasing cloth widths. In the case of small number of marking pieces, the efficiency increased with increasing cloth widths, while, for large number of marking pieces, there was no differences in the efficiency with the cloth widths. From the result of the comparison of the marking efficiencies with the number of marking pieces, it was shown that, in the case of small cloth width, the efficiency increased considerably with increasing number of marking pieces, while, in the case of large cloth width over two markers, there was no distinct effect of the number of markers on the marking efficiency. Thought there were some differences of the marking efficiencies with the marker directions, bi-direction marker was the most efficient marker, followed by one-direction for each size marker and one-direction marker.

• Journal of the Korean Society of Clothing and Textiles
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• v.43 no.2
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• pp.204-214
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• 2019

A CAD program has recently been introduced that can be directly developed into a three-dimensional human body shape and made into a pattern. It is possible to fabricate a bra that reflects the volume and surface area of the breast; however, it still needs to be verified. This study investigates the average size and shape of 20 big-breasted women and designs a brassiere pattern for women with large breasts using a 3D Flattening function of OptiTex PDS v15.6. In addition, the study verifies the reliability of the proposed method compared to a conventional brassiere pattern. The study results are as follows. First, the three dimensional measurement values were smaller than the direct measurement dimensions when the three dimension measurement dimensions of the subjects were compared with the direct measurement dimensions, the replica measurement dimensions and the three dimensional measurement dimensions. Second, the 3D flattening pattern reflects the actual shape, length, and area of the actual breast when comparing a brassiere pattern using a 3D shape and pattern reflecting the direct measurement.

• Textile Coloration and Finishing
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• v.18 no.1
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• pp.33-43
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• 2006

The purpose of this study was to eximine the effect of different yam twisting methods on mechanical properties and 3D CAD images of plain knitted fabrics made of composite yarns. Six yams were used in this study: four different composite yams of the six consist of acetate and functional polyester (Poly-m) with the ratio of 70:30, and the rest two are the original acetate $100\%$ yam and the poly-m $100\%$ yarn. The four kinds of composite yarns were processed in combinations of twisting processes such as interlacing, false twisting, two for one twisting, combined twisting and single covering, and the two original yams were knitted without any twisting process. Sixteen mechanical properties of all the six knitted fabrics, knitted under the same knitting conditions, were measured by KES-FB system with the outer knit condition. The results were as follows; 1) When the sample applied with the false twisting process at the temperature as high as $220^{\circ}C$, ENT, B, HB, G and RC values of samples increased which leads to increasing dimensional stability. 2) To gain the high bending and shear properties in the single covering process, selecting the core yarn with such properties is the most important factor. 3) Interlacing process effected to increase RC value. 4) False twisting process after interlacing process gave bulkiness and un-interlaced part in yam was increased SMD value. The SMD value of the kilted fabric of the composite yarn, which was put through the combined twist process, was higher than those of which simple process such as the two for one twist or the single covering process applied. In order to achieve the silk-like surface feel of knitted fabric, the sin91e covering process is recommended. 5) Examining the simulation images of the knifed fabrics of composite yarn, which were generated by the 3D CAD system based on the mechanical properties of the fabric, led that appearance could be changed as different twisting methods were applied.

• The Research Journal of the Costume Culture
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• v.21 no.2
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• pp.195-205
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• 2013

Eco T-shirts have become a part of environmental campaigns following social trends toward eco-friendly designs. With the demand for such designs expected to grow, there has arisen a need for higher product variety. In the past, eco T-shirts were designed to convey messages about the protection of nature through the use of environmentally friendly text or images. However, in order to respond to the preferences and emotional needs of Koreans, designs should cater to their characteristics and tastes. To this end, this study used a Whan-ki Kim-inspired motif to develop an eco-friendly design tailored to Korean perspectives. It is believed that this process can not only result in a distinctive eco T-shirt design, but also make it globally competitive. With regard to research methodology, a total of 41 paintings of Whan-ki Kim were analyzed and classified into four major themes or key values expressed in modern eco-friendly fashion designs: naturalness, indigenousness, harmony between nature and man, and harmony between natural and artificial beauty. Employing a wide range of CAD techniques and varying forms, the themes were developed into 28 T-shirt designs after their forms, tones, and textures were fully explored. This study demonstrates the possibility of designing creative, aesthetic, and high value-added eco T-shirts through motif development. In addition, it successfully integrates Korean paintings in the development of T-shirt designs aimed at communicating environmentally friendly messages.

• Fashion & Textile Research Journal
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• v.9 no.3
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• pp.278-285
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• 2007

The purpose of this study is the image of clothing according to the change of the dots' interval was analyzed and its influence on the formation of the image of polka dots clothing was investigated. White waterdrop patterns were designed on the 12 kinds of black texture using Photoshop and CAD program in regular arrangement of diamond figure, composed of white waterdrop(0.5 cm, 1.0 cm, 1.5 cm and 2 cm in diameter) and interval(diameter : interval - 1 : 1, 1 : 2, 1 : 4). Applying above specification, the photograph stimulus of 12 kinds of X-line one-piece dress with wide square neckline and without sleeve or detailed ornament was presented on a screen in the same size as when putting it on. The image of polka dots clothes was investigated by questionnaire survey. The object of the study was 320 females aged between 16 and 29. Factor analysis, one-way ANOVA, Scheff$\acute{e}$ verication and two-way ANOVA using SPSS 10.0 were carried out for data analysis. The research finding are as follows. First, the image of polka dots clothing consists of 4 factors as aesthetics, brevity, dynamism and lightweight. Secondly, the interval of the dot has a great influence on the formation of the image of polka dots clothing. Lastly, the evaluations of the image of polka dots clothing were different depending on the age and physical image, the personal characteristics of the object of investigation.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2002.10a
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• pp.999-1002
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• 2002

Cylindrical Cam Mechanism is widely used in the fields of industries, such as machine tool exchangers, textile machinery. This paper proposes a method for manufacturing of cylindrical cam in Multi CNC machining center. Multi CNC machining center has two different types depending on the tilting axis. For the manufacturing procedures. in this paper the location and the orientation of cutter path are defined from shape design data of cam. The integral NC code fur the both types of multi-axis CNC machining center can be created using the coordinates mapping between design coordinates and work coordinates. Finally, CAD/CAM program is developed on $C^{＋＋}$ language. This program can display manufacturing and kinematics simulation, which can make integral NC code for multi-axis CNC machining center of two types.