• Title/Summary/Keyword: Brim

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Development of the sunshade hat with a large brim(Part I) -Development and test with manikins- (양산형 일광차단모의 개발(제1보) -고안 및 마네킹 착용실험-)

  • 김경수;최정화
    • Journal of the Korean Society of Clothing and Textiles
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    • v.26 no.8
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    • pp.1177-1185
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    • 2002
  • This study was to develop the sunshade hat which reduced stress from solar radiation and ultraviolet radiation (UV), in order to keep the farmer's health and to promote their work efficiency. The new sunshade hat with a large brim, special structure for ventilation, stability and portability was designed and tested with manikin heads outdoors. Two newly designed sunshade hats(A, B) and three existing hat were tested Sunshade hat A made of double fabric with aluminum coating-nylon and black cotton cloth with a polyester mix(T/C) was the most protective from solar radiation. Sunshade hat B with larger brim was the most protective from ultraviolet radiation, even though it was made of aluminum coating-nylon single fabric.

A Study on Metal Bound Rims Adhered to the Brim of Ceramics (도자기 구연에 부착된 금속 테두리 연구)

  • Hwang, Hyun-Sung;Yang, Pil-Seung;Seo, Jeong-Ho
    • Journal of Conservation Science
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    • v.22
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    • pp.109-120
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    • 2008
  • Understanding the whole knowledge of ceramics is essential for a person in charge of conservation of ceramics since their methods of manufacturing or materialistic features have very close relationship with their damaging process. Also, various executions of repair and restoration dealing with any damage in use have to be looked into. The information attained through those studies finds damaging causes of ceramics, which becomes a critical element when choosing a proper conservation treatment method and utilizes as indispensable data for permanent preservation. As part of scrutinizing materials of repair and restoration, this study examines the purpose, date, and the constituents of the materials used in metal bound rims adhered to the brim of ceramics. Among the subjected ceramics, the metal bound rims possible to scientific analysis were gone through element analyses with Portable ${\bullet}\"{I}$-XRF Spectrometer and SEM-EDS while the ingredients of the ceramics difficult to analyze were inferred by eye inspection of exhibition catalogues. The results of this study confirm that metal bound rims consisted of diverse materials were adhered to the brim of ceramics.

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The Formative Characteristics of Hats Shown in Prêt-à-porter Collection (프레타포르테 컬렉션에 나타난 모자의 조형적 특성)

  • Yoo, Hyun Jeong;Kim, Jeong Mee
    • Journal of the Korea Fashion and Costume Design Association
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    • v.18 no.4
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    • pp.141-158
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    • 2016
  • The objective of this study is to examine the type and characteristics of hat, and also to analyze the formative characteristics of hats shown in $Pr{\hat{e}}t-{\grave{a}}$-porter Collection. The literature review focused on the relevant technical books and preceding researches while the case study targeted 1,561 photos of hats shown in the 'Donga TV Collection'. The research range was from the S/S season of 2012 to the F/W season of 2015/16. The results of this study are as follows. 1. A hat is composed of crown and brim. In the results of classifying hats based on it, there were 572 crown-type hats, 533 hat-type, 219 cap-type, 156 irregular-type, and 81 brim-type in the order. 2. For the crown-type hats, they were mainly like cylindrical-type, bell-type, dome-type, and circle-type, using colors like black, beige, brown, red, mustard, and grey, and materials like wool, fur, velvet, straw, and metal while they were decorated with bead or lace. 3. For the hat-type hats, they were mainly like bell-type, ladder-type, and hemisphere-type, using colors like peach, white, gold, brown, and khaki, and materials like silk, cotton, straw, and wool while they were decorated with feather and ribbon. 4. For the cap-type hats, they were mainly like hemisphere-type, using colors like white, black, khaki, mustard, and purple, and materials like fur, leather, and wool while they were decorated with wappen and chain. 5. For the irregular-type hats, they were mainly like sandglass-type, box-type, animal-type, trumpet-type, and bell-type, using colors like purple, orange, pink, yellow, and sky-blue, and materials like metal, feather, mesh, plastic, straw, and linen while they were decorated with ribbon, net, bell, and flower. 6. For the brim-type visor, they were mainly like square-type, using colors like transparent, yellow, and black, and materials like plastic, cotton, leather, and metal.

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UVA radiation transmittance in Summer Hats (여름용 모자의 UVA 투과량)

  • 송명견;한문정;안령미
    • The Korean Journal of Community Living Science
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    • v.14 no.3
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    • pp.13-19
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    • 2003
  • The purpose of this study was to investigate the UVA radiation protection effects of summer hats currently on the market with the purpose of making it possible to choose a hat with suitable UVA protection. Twelve different summer hats from the market were selected for the experiment. The results are summarized as follows: It is more effective to wear a hat than not wear a hat to block UVA radiation. Summer hats with the greatest degree of protection, from highest to lowest, are cotton, straw2, and straw1. In the area of the forehead, which is rarely influenced by the irradiation angle, the cotton hat was the most effective in protecting from UVA radiation because the material density was greater than that of the straw hats. A hat with a 8.5 cm brim was more effective at blocking UVA radiation on the jaw than 6 cm, 4 cm, and 0 cm wide brims, but it still couldn't block the radiation completely. Irradiation amounts at 11:00 AM on the forehead, jaw! s and left and right cheeks were lower than amounts measured on the back of the neck. This revealed that irradiation amounts depend on the shape of the hat and time of day. A hat with a brim encircling the head was found to be more effective in blocking UVA radiation than a hat with only a front or side brim.

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Quality Characteristics of Brown Rice Dasik Using Scattered-flower Ladybell Powdered of Various Sugar (당의 종류에 따른 모시대 분말 첨가 현미다식의 품질 특성)

  • Kim, Ae-Jung;Joung, Kyung-Hee;Park, Won-Jong
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.11 no.11
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    • pp.4449-4454
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    • 2010
  • The principal objective of this study was to evaluate the physicochemical characteristics of scattered-flower ladybell powdered brown rice Dasik prepared with four kinds of sugars. We noted that the luminance of control sample was higher than that of BRSM and BRIM, but similar to BRFM sample. In Hunter's a of control were higher than those of BRFM and BRFM, but similar to BRSM sample. In Hunter's of b values were decreased. With regard to the mechanical properties of the Dasik samples, we noted significant differences in hardness, gumminess, chewiness but no differences in springiness and cohesiveness were detected. The hardness, gumminess, chewiness of control sample were lowered than those of BRSM and BRIM. The case of sensory evaluation, there were taste and texture of control sample were higher than those of BRSM and BRIM, but BRFM. And the overall quality of BRFM was significantly higher than those of BRSM and BRIM, but control sample.

Development of the Sunshade hat with a large brim (Part II) - Human trial test at outdoors - (양산형 일광차단모의 개발(제2보) -실외 인체착용시 복사열 및 자외선의 차단효과-)

  • 최정화;김경수
    • Journal of the Korean Society of Clothing and Textiles
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    • v.28 no.3_4
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    • pp.414-421
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    • 2004
  • To reduce farmer's stress from solar radiation and ultraviolet radiation(UV), the sunshade hat with a large brim and special structure for ventilation was developed and tested with manikin heads outdoors at previous study(Kim and Choi, 2002). To evaluate the protection efficiency of the sunshade hat, human trial test was performed at outdoors. The results were as follows; Skin temperatures(7 sites), heart rate, temperature inside the hats, temperature and relative humidity inside clothing on the back in wearing developed sunshade hat were significantly lower than those in wearing the controlled hat. In subjective sensation, subjects answered to feel significantly hotter, more humid and more uncomfortable in wearing the controlled hat. But relative humidity inside the hats was significantly higher in wearing developed hat. In rectal temperature, there were no significant differences between two hats.

Determinants of Performance and Design for Improving Safety Helmet Usability (안전모 사용성 향상을 위한 성능 및 디자인 결정 요인에 관한 연구)

  • Sang Woo Shim;Yong Su Sim;Jong Bin Lee;Seong Rok Chang
    • Journal of the Korean Society of Safety
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    • v.38 no.3
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    • pp.85-92
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    • 2023
  • A safety helmet is considered the last gear to protect workers from harmful and dangerous events occurring on industrial sites. Recently, interest in the importance of personal protective equipment design reflecting individual characteristics has been emphasized to improve usability and convenience. However, it has been found that if it is inconvenient to wear or has poor work efficiency, it will not be used well or will be used incorrectly. In this study, an investigation was performed with 35 questions, direct observation, and intensive interviews of construction workers to determine the inconvenience and problems of wearing safety helmets. Moreover, managers of 9 construction sites in 6 cities were asked about the performance and design of safety helmets. As a positive answer, it was found that the brim (awning) of the safety helmet was shortened to give the safety glasses a light-shielding function. In addition, an upward adjustment all-in-one type safety helmet was requested. On the other hand, it was revealed that negative answers felt uncomfortable due to the brim (awning) on the front of the helmet. Based on the survey results, a new helmet model suitable for construction site activities was presented, and wearability improvement determinants were discovered through performance and design improvement.

Demand Performance and Preference of UV Protective Hat with Demographic Characteristics (인구통계적 특성에 따른 자외선차단모자의 요구성능과 선호도)

  • Kang, Mi-Jeong;Kwon, Young-Ah
    • Fashion & Textile Research Journal
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    • v.12 no.3
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    • pp.372-380
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    • 2010
  • The purpose of this study were to investigate a preference and demand performance of UV protective hat for outdoor sports activities. Data collected from 259 adults from survey were analyzed by frequence analysis, crosstabs, t-test, and ANOVA using SPSS 17.0. The results are as follows. A demand performanc of UV protective hats were a demand performance for designs, colors, fabrics, lightness, UV protection, and easy care. It showed that the respondents worn the hats for skin health and didn't wear for sun block. The demand performance of UV protective hat showed difference according to gender and age. The favorite type of UV protective hat was cap, and there was no difference between young and old age. Male preferred the cap styles, while female preferred the wide brim styles for UV protection. The preferred fiber contents of the respondents were cotton and functional fiber.