A Study on Use of Anthropometric Data and 3D Body Scan Data at Apparel Industry

Chun, Jongsuk The Costume Culture Association 2003 Fashion, industry and education Vol.6 No.1

The 3D measurement data expected be useful to give appropriate garment fit and development of MTM(Made-to-Measure) CAD software. The researcher surveyed the need use of national anthropometric data of the apparel industry. 17 Korean apparel manufacturers participated in the study. The need of anthropometric data at 5 different apparel business sectors was measured: men's suit, women's dress, casual-wear, underwear, and active sportswear. The result of the survey shows that height and bust, waist, hip circumferences are needed by all of the business sectors. The body measurements at the scye and upper arm area were need most by the men's suit manufacturers. The women's foundation garment manufacturers were well prepared for the use of the 3D body scan data and they expected the potential benefits of 3D body scan data would be great. The researcher also conducted a case study and found a pro and con of the using 3D body scan data for apparel product developing process. In the current stage of technical advance, a reasonable method was required to get nude like scan data for the women's foundation garment manufacturer. The researcher concluded that the apparel designer could use the 3D scan data for developing tremendous style garment design and pattern making.

Agricultural Safety Clothing

Jongsuk Chun,Jungwoo Jee,Kyoung Sook Hwang 대한인간공학회 2011 大韓人間工學會誌 Vol.30 No.4

Objective: The study was performed to suggest factors to consider when making or selecting protective clothing to enhance farmers’ health. The purpose of this study was to review and summarize the agricultural safety technology on clothing including hat, gloves, and shoes. Background: The farmers’ work clothing has to meet a multitude of requirement. Risk factors in farm-work were identified by previous researches. Agricultural safety clothing needs to be introduced. Method: We reviewed previous papers regarding the agricultural workers’ health, safety clothing to protect body from excessive heat and humid environment, ultraviolet(UV) protection, and hazardous body working postures. Also the UV cut effect, pesticideproof clothing, and preventable farm work related musculoskeletal disorders were discussed. Results: The agricultural safety clothing needs to be developed to provide comfort and to be resistant against heat. The UV protection function on skin and eyes has not been fully researched in safety clothing studies yet. Conclusions and Application: The farmers’ work-related body posture needs to be studied in order to make and design agricultural safety clothing. The safety issues on agricultural work shoes are also needed to be included in future studies.

A Study on the development of ergonomic functional clothing

Jongsuk Chun,Jung Woo Jee 대한인간공학회 2011 대한인간공학회 학술대회논문집 Vol.2011 No.5

Objective: The aim of this study is to explore a method of making functional clothing empower the skeletal muscle and supporting neutral body posture. Background: Performing static or dynamic physical activities without body supporting device often cause health and safety disadvantage. For body supporting the researchers developed ergonomic functional clothing (EFC). It was expected to balance body posture and strength during working at static or dynamic activities. Method: Fabric skeletal muscle device was applied to the fabric body frame. The body frame was made from a 3D body scan surface data to reproduce human skeletal system. Results: The upper-body EFC was made with 16 fabric skeletal muscles. 17 fabric muscles were developed for the EFC covering arm and 24 fabric muscles were developed for the lowerbody EFC.

Bra Cup Sizes Using 3D Body Scan Manual Measurements

Jongsuk Chun,Seolyoung Oh 대한인간공학회 2011 대한인간공학회 학술대회논문집 Vol.2011 No.10

Objective: This study aims to examine the brassiere cup sizing system using direct measurements of 3D body scan data. Background: Breast shape has complex curving surface so that the methods of breast size measurement have many measurement error and consumers have problems for finding proper bra size. But 3D body scanner supplies the new ideal data for women's breast circumference measurement. This study developed 3D manual measurement method. Method: 32 women's 3D body scan data were selected in Size Korea. 3D scan data were measured in three methods. (1)2D direct measurement. (2)3D automatic measurement. (3)3D manual measurement. 3D body scan data sliced in horizontal lines were measured by AutoCAD program. Results: The t-test results of chest girth, bust girth and bra cup size showed significant difference between 2D direct measurements and 3D automatic measurements. Bra cup sizes by 3D automatic measurements were larger than 2D direct measurements, whereupon some subjects were classified as wrong bra sizes. Conclusion: The method using slice line along body surface (A line) was more useful to determine bra cup sizes than the method using simplified surface line (B line). Application: The 3D manual method can be used for measuring bra cup size.

Men's and women's body types in the global garment sizing systems

Chun, Jongsuk The Costume Culture Association 2012 服飾文化硏究 Vol.20 No.6

Apparel companies define their target customers to integrate consumers' needs into their product development processes. The sizing standards play a significant role in ready-to-wear garment business. Consumers' body build and sizes are different according to gender, age, and body type. The consumers' morphological feature of the one geographical area has changed with immigration, aging, and lifestyle change. In this study the way of defining body types in the standard garment sizing systems published in USA., UK, Germany, Japan, and Korea were compared. The results of this study show that most of the systems classified the body types by the index value. The chest-waist drop value was used for men's body type classification. Women's body types were defined by hip proportion. The hip-bust drop value was used for it. German and European garment sizing systems provide a wide range of men's body types. US men's garment sizes are developed for very conservative body type. US women's garment sizing system has had clearly defined women's body types. The Misses body types projected in the US garment sizing system had changed as women's waist girth got bigger compared to the past. In 2011 the US Misses sizes were divided into Curvy Misses size and Straight Misses size by the hip-waist drop value. The Curvy Misses sizes have smaller waist girth and larger hip girth than the Straight Misses sizes.

Change of Cervical Curvature Angle by Wearing the Posture Corrective Garment

Jongsuk Chun,Jungwoo Jee,Hyunsook Kim,Minsun Kim,Kyounghyun Kwon 대한인간공학회 2015 대한인간공학회 학술대회논문집 Vol.2015 No.10

Objective: The purpose of this study was to measure the wearing effect of the posture corrective garments. The experimental garments were developed by reflecting the kinematical relation of sternoclavicular articulation, spine and muscles of dorsum. The posture correction effect was measured by the change of cervical curvature angle and distance. Background: Contemporary lifestyle pushes the people an unhealthy posture. The way of rehabilitation medicine has been increased to solve this problem. In the fashion industry, functional garments to correct posture are commercialized. However, there are few studies which analyze quantitatively the effect of posture corrective clothing. Method: Two types of posture corrective garments were developed. They spread shoulders and straighten the cervical vertebral and lumbar by changing sternoclavicular articulation. The posture correction effect was measured by the change of cervical curvature angle and horizontal distance between cervical curvature and tragion. 4 subjects participated in the experiment. They had various cervical curvature angles. Results: The cervical curvature angle of the subjects varied from 26°to 41° at static posture without experimental garments. By wearing the posture corrective garments, their cervical curvature angle was decreased by 1.39°~7.75°. The result implies that the developed posture correction garments have positive effect on the people who have low level of cervical lordosis. Application: the relation between design feature and the wearing effect of the posture corrective garments should be studied in the follow-up study.

A Study on the Design of Hospital Gowns for Child Patients in Korea

Chun, Jongsuk Y.,Suh, Dongae J. The Costume Culture Association Department of Clot 1999 Fashion, industry and education Vol.2 No.1

This study investigated the usage of child hospital gowns to suggest a gown design suitable for child inpatients in Korea. The satisfaction on size suitability and design of child hospital gowns was surveyed among 219 child inpatients in 20 general hospitals. The most hospitals provided 2 to 4 different size pajamas for child inpatients. However, 53% of the subjects chose not to wear the uniform pants that the hospital provided and 28% did not wear the shirts. The reasons most often given for rejecting to wear the uniforms were unsuitable size (42.1%) and difficulty in taking on and off (26.2%). The dissatisfactory parts of hospital gowns were pants length (27.9%), sleeve length (19.6%), pants waist closure(16.9%), and neckline opening(11.9%). The preference in gown design for child inpatients varied by age (p〈.05) and the styles that they had worn (p〈.05). Significant differences for style preference were found in the opening of shirts or pants, pants waist closure type, and pants length. These results suggest that the hospital gowns for child inpatients need to reflect the wide diversity in their body size and preference in style.

Study of a measure to improve the fit of U.S. apparel products directly imported to Korea - With a focus on female casual pants -

Sunyoon Choi,Jongsuk Chun 복식문화학회 2015 服飾文化硏究 Vol.23 No.2

This study intends to analyze the fit of directly-imported American casual pants for Korean female college students in terms of appearance and comfortableness. The authors carried out a wearing test with sample pants from 3 brands (DKNY: A, Gap: B, Pol C) that had the most market share and that were mostly preferred by Korean female college students. Results showed that pants A had insufficient ease in the crotch, as the depth of the crotch was short. The hip girth received a low assessment in terms of appearance. Moreover, the hem widths were wide while the pants length was long. Pants B were expected to be most appropriate for Korean women’s bodies, as they had the longest crotch depth among the three brands. However, the pants appeared to pull downward due to the narrow thigh and the knee girth and hem width. Moreover, the crotch girth and hip girth received a poor appearance assessment. Pants C were rated as satisfactory for their thigh girth, knee girth, and hem width. However, the crotch was uncomfortable, as it had a short crotch depth. The hip girth received a low appearance assessment. This study suggests that a pattern adjustment is required for directly-imported American pants to provide a better fit for the bodies of Korean women. The crotch depths should be approximately 17.5 cm. The hem widths should be approximately 20 cm. We also suggest a leg length of 75 cm, a waist girth of 86 cm, and a hip girth of 97 cm.

A study on procedure for classifying male muscular lower body somatotype from general anthropometric database

Minji Lee,Jongsuk Chun 복식문화학회 2013 服飾文化硏究 Vol.21 No.4

생활한복 디자인 설계에 관한 사례연구

천종숙,서동애,허지혜,최선희,양유영 연세대학교 생활과학연구소 1998 生活科學論集 Vol.12 No.-

This study was initiated to investigate the design and dress making techniques used for the reformed Korean traditional apparel. The researchers collected the data from 1997 fall and winter collections from five well known manufacturers. The results of the study were as followings: 1. The most apparent features of the reformed Jogori design was elimination of the fastening and adaptation of various neckline shapes devised during the Yi dynasty. Most men's Jogori had pockets at the waist. 2. The traditional Jogori construction designs remained were the center back seam, neckline shapes, front bodice extension, and neckline binding. 3. The traditional pattern cutting method for pants was still in use. However the waist and ankle closures were simplified. And the patch pockets were attached on the both sides of pants. 4. The skirt design was changed most. The waist length wrap skirt was closed at the front. The high-waist sleeveless one-piece dress was also included in skirt design. 5. The fabric used for the most of apparels collected for this study was 100% cotton.