• 한국의류학회지
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• 제30권6호
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• pp.981-991
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• 2006

The purpose of this study was to determine the practicability of an experimental protective clothing by identifying the human body's physiological responses to it as well as the human body's comfort level when wearing it, particularly with the use of a processed charcoal material. The experimental protective clothing came in two types: one whose outer side made use of polypropylene film, and the inner side, a non-woven rayon fabric; and one whose inner side made use of a non-woven fabric processed with charcoal with a 10% density. Experiments were conducted on five healthy adult women whose average age was 21. These experiments were conducted at a climatic chamber, in which the temperature and relative humidity were set below $28{\pm}1^{\circ}C\;and\;50{\pm}10%$, respectively, and were measured within a period of 60min, consisting of a 20-min rest period, a 20-min exercise period, and a 20-min recovery period. Based on the results of this study, the efficiency of the processed charcoal material was reviewed, and a database requiring the production of more functional and comfortable protective clothing materials was established.

• 한국의류학회지
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• 제40권5호
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• pp.910-920
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• 2016

This study is to understand the problems of current police raincoats for professional policemen and conscripted policemen. Interviews and a survey were completed to investigate the wearing conditions of current police raincoats. The questionnaire was composed of questions on current wearing conditions of raincoat, motional adaptability, dimensional compatibility, design suitability and demographic information on the research target. The results indicated that the wearing frequency of raincoats had significant difference according to duty and age range. The main reason for the low wearing frequency was the uncomfortableness of working while wearing the raincoat, followed by the inconvenience of managing the raincoat after use and feeling hot while wearing the raincoat. The three most important factors when wearing a raincoat was pleasantness, activity capability and the functionality of the fabric. The satisfaction on body parts during motions tended to be evaluated lower as the raincoat size increased. The results of the dissatisfaction factors indicated that the raincoat hood had the most problems. There was inconvenience when using the equipment belt because officers have to wear their belts inside the raincoat. In regards to the fabric satisfaction level, respondents were less satisfied with ventilation, hygroscopicity, and drying time. Therefor it appeared that the current raincoat had problems due a lack of functionality in regards to ventilation, hygroscopicity, and quick drying; in addition, the satisfaction on motional adaptability had a significant difference according to raincoat size.

• Journal of Microbiology and Biotechnology
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• 제20권2호
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• pp.311-318
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• 2010

Antimicrobial finishing of textiles has been found to be an economical way to prevent (or treat) skin disorders. Hence, this research effort was aimed at elucidating the relationship between the molecular weight (MW) of chitosan and its antimicrobial activity upon six dermal reference microorganisms, as well as the influence of the interactions with cotton fabrics on said activity. Using 3 chitosans with different MWs, as well as two chitooligosaccharide (COS) mixtures, a relevant antimicrobial effect was observed by 24 h for the six microorganisms tested; it was apparent that the antimicrobial effect is strongly dependent on the type of target microorganism and on the MW of chitosan - being higher for lower MW in the case of E. coli, K. pneumoniae, and P. aeruginosa, and the reverse in the case of both Gram-positive bacteria. Furthermore, a strong antifungal effect was detectable upon C. albicans, resembling the action over Gram-positive bacteria. Interactions with cotton fabric resulted in a loss of COS activity when compared with cultured media, relative to the effect over Gram-negative bacteria. However, no significant differences for the efficacy of all the 5 compounds were observed by 4 h. The three chitosans possessed a higher antimicrobial activity when impregnated onto the fabric, and presented a similar effect on both Gram-positive bacteria and yeast, in either matrix. Pseudomonas aeruginosa showed to be the most resistant microorganism to all five compounds.

• 복식문화연구
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• 제9권3호
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• pp.433-446
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• 2001

Recently, according to changes in fashion trends, the importance of stretch fabric stands out. A lot of studies on non-stretch woven fabrics have been made, but few studies on stretch fabrics has been made yet. Especially, the study on ease for the patterns, according to body types, of stretch has not been made at all. The purpose of this study was to make clear reduction ratio due to the stretch ratio and to find out the ease for the patterns of stretch skirt according to standard body type to improve the aesthetics and wearing satisfaction. Therefore, fundamental data for aesthetic and functional patternmaking of the stretch skirt can be suggested. The results from the study were as follows: 1. The results from the appearance test were as follows. For the ease on waist, W+0㎝ and W-1㎝ for standard body type were suggested for the best fit. For the ease on hip, H+2㎝ and H+0㎝ for standard body type were suggested for the best wearing best fit. 2. The results from wearing satisfaction test were as follows. W+0㎝, H+2㎝ for standard body type were suggested for the best wearing satisfaction. 3. Based on the results from the above tests, the pattern reduction ratios for stretch skirt were as follows: pattern reduction ratio 3.0∼4.6% of waist, 2.1∼4.3% of hip for standard body type were suggested for the appropriate reduction ratio for stretch skirt. 4. The result from this study for stretch skirt was as follows: For standard body type, W+0㎝, W-1㎝ for waist and H+2㎝, H+0㎝ for hip were appropriate for stretch skirt pattern.

• 복식문화연구
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• 제15권6호
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• pp.929-938
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• 2007

The purpose of this study was to explore the consumers' purchasing pattern and dissatisfaction with the quality of the jean pants. A total of 695 men and women completed the questionnaire. The questionnaire for the survey measured consumer's jean pants purchasing pattern and dissatisfaction for quality. The results of this study showed that men bought higher priced jeans. Women in their twenties purchased and worn jeans frequently and men and women in age 20s mainly bought jeans at wholesale stores or department stores; but, majority of subjects in their thirties bought jeans at discount stores. Consumer's dissatisfaction with the quality of jean pants was significantly different among the groups by age, gender or their pursuing buying benefit. The men and women in age 30s were dissatisfied with harshness of the denim fabric. The subjects, who highly concerned on the aesthetic value, were dissatisfied with the inconsistence color of the jean pants after washing. Men and women who valued the functional performance of jean pants, were dissatisfied with low sweat absorbancy of jean pants material. The results of this study showed that the consumer's buying pattern for jean pants were differentiated by their age and gender. These results imply that jean pants manufacturers should develop jean pants to meet the needs of their target market. The jean pants, which were manufactured for discount stores, should be made of fabrics with good sweat absorbancy and soft hand. The fashion jean pants, which were targeted for women seeking aesthetic values, should be improved to maintain color consistency of the fabric.

• 한국의류산업학회지
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• 제13권5호
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• pp.759-768
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• 2011

This study is designed to understand current wearing conditions of air force mechanic parkas and evaluate their functionality by examining the wearing conditions and wearers' subjective assessment. By doing so, it also intends to identify issues that require improvements; and to provide basic data for future development of air force mechanic parkas. A survey was conducted as a study methodology, and the collected 1,628 questionnaires were analyzed. Findings of this study are as follows. 1. In the usability assessment, it was found that visibility of body sides was needed to be enhanced since reflective tapes were attached only to the front and back of the body; pockets were too big, but not convenient to keep mechanic tools; the design of hiding hood was not suitable for water-proof clothing; and a new design of size-controllable hood was called for since the hood blocked eye sight. With respect to the fabric, dissatisfaction was identified with durability, cold-proof and fire-proof features. 2. In the mobility assessment, respondents showed low satisfaction with collar heights and neck girths. Mobility score was over moderate level on average, except the parka length that obstructs wearers' movement, and neck and collar size. 3. In the wearability assessment, respondents presented moderate satisfaction with pleasantness, weight, pressure and dampness. However, insulation was found unsatisfactory. Based on the result, this study proposed improvement plans on design, pattern and fabric; and is expected to serve as basic data for developing more effective and functional air force mechanic parkas.

• 복식문화연구
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• 제25권5호
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• pp.648-655
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• 2017

This study measured dyeing properties under different dyeing conditions and levels of antimicrobial activity when man-made fibers are dyed with gallnut, including rayon, tencel, tencel blended fabric, soybean fiber, and nylon non-mordanted. The dye up-take (K/S), color ($L^*a^*b^*$), and color differences (${\Delta}E$) were measured with a colorimeter, and the number of bacteria present in the dyed fabrics were determined using Staphylococcus aureus and Klebsiella pneumonia as strains. The results are as follows: First, the optimal dyeing conditions for man-made fibers dyed with gallnut are 60 minutes of dyeing time and a $80^{\circ}C$ dyeing temperature. Second, gallnut dye is most effective on soybean fiber and then, in descending order of effectiveness, on nylon, rayon, tencel, and tencel blended fabric. This means that dyeing properties of nitrogen containing fibers are excellent when using gallnut. Third, all man-made fibers are dyed brown with gallnut. This implies dyeing possibility of man-made fibers about gallnut dye, so development and supply of natural dyed goods of man-made fibers can be increased. Fourth, in all man-made fibers dyed with gallnut extract, both Staphylococcus aureus and Klebsiella pneumonia show 99.9% reduction ratios of fungistasis, which indicate antimicrobial activity. Therefore, safe, functional, man-made materials can be developed to relieve symptoms from and treat patients with skin ailments.

• 한국의류학회지
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• 제29권8호
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• pp.1168-1175
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• 2005

Clothing pressure has close relation with clothing comfort and depends on the pattern and properties of textile fabrics. Choosing a suitable clothing pressure is an essential factor for designing functional clothing such as the foundation for reshaping of a body contour or medical items for bum patient, and etc. However, it is hard to measure pressure values at the curved surface of a human body correctly. Recently, an air pack type pressure sensor, which has relatively excellent performance has been used to measure clothing pressure, however, it is still inconvenient to apply because it is a contact- type sensor. Therefore, in this paper, we suggest an indirect method that can measure clothing pressure without touching the subject by improving the equation of Kirk and Ibrahim (1966). However, confusions have been occurred when someone use the equation since the definition of parameters are somewhat vague. Furthermore, the estimated clothing pressure obtained by the previous method are quite different from the real values because this method does not consider the 3D effect of a human body and property changes of a transformed fabric. In this paper, the direction of principal stress and the radius of curvature in the principal direction were searched in the 3D image of the deformed girdle to get more accurate clothing pressure. The estimated clothing pressure was verified by comparing the result of the air pack type pressure sensor. It was found that the accuracy of the pressure estimation was improved by considering the 3D curvature of human body and the directional characteristics of textile fabrics.

• 폴리머
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• 제24권5호
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• pp.673-681
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• 2000

플라즈마 처리가 나일론 6 직물의 표면 특성과 폴리아닐린/나일론 6 복합직물의 전도도에 미치는 영향을 연구하였다. 산소 플라즈마로 처리한 나일론 6 직물의 표면을 XPS 분석을 통해 확인한 결과 C-O, C-OH 등의 관능기가 도입되었으며, 이는 직물과 폴리아닐린의 결합력을 향상시켜 전기 전도도와 폴리아닐린 부착량을 증가시켰다. 또한 산소 플라즈마로 처리된 폴리아닐린/나일론 6 복합직물은 세탁과 마모에서도 우수한 안정성을 나타내었다. 초음파 처리는 매질에 발생된 cavitation과 진동에 의해 직물 내부로 아닐린을 확산시키는데 효과적이었으며, 이는 폴리아닐린/나일론 6 복합직물의 전기 전도도를 크게 향상시켰다. 아닐린의 농도와 중합욕에 침지 휫수가 증가함에 따라 전기 전도도와 복합직물의 형태안정성에 대한 영향을 살펴보았는데, 단량체 농도는 0.5M 까지는 증가함에 따라 전도도가 향상되었으며, 침지 횟수가 증가함에 따라서도 전도도가 향상되었다.

• 접착 및 계면
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• 제8권3호
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• pp.16-23
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• 2007

폴리에스테르 편 직물들을 전류세기 5, 10, 15, 20 A로, 공급속도 5, 10, 15 m/min로 코로나 처리하였다. 이들의 표면변화를 주사전자현미경(SEM)과 X-ray 광전자분석기(XPS)로 확인하였다. 또한 물리적 성질의 변화를 인장강도, 건조 시와 습윤 시의 접착강도를 통하여 측정하였다. 접착에 사용된 접착제는 열경화성 반응형 폴리우레탄 핫 멜트 접착제이다. 대기압에서 코로나 방전처리에 의해 폴리에스테르 편 직물에 관능기들이 도입되어졌고, 표면에 요철이 발생하여 그 결과 접착력은 향상되었다. 건조 시 및 습윤 시의 접착강도를 모두 고려할 때, PET 직물의 코로나 처리에 있어 적절한 조건은 공급 속도 10 m/min, 전류 세기 15 A라 생각되며, mesh형 PET knit는 공급 속도 10 m/min, 10 A 이상의 전류세기라 생각된다.