유연제 워싱 가공에 따른 면 저지의 촉감각 및 선호도

나영주,신화경,Na, Young-Joo,Shin, Wha-Kyung 한국섬유공학회 2010 한국섬유공학회지 Vol.47 No.1

The purposes of this study are to investigate the tactile sensibility and preference of cotton jersey before/after the treatment of softener washing finishing and to look for the relationship of tactile sensation and consumer preference, in order to provide the basic data for the development of new cotton products. We surveyed the tactile sensation and preferences of cotton jersey to 40 college students when asking them to handle $30{\times}30cm^2$ of fabric treated with/without finishing: Enzyme, Ultra soft, Silicone, and SBS washing finishing. All softener washing-finished fabrics were felt softer, flatter, more flexible, limper, moister, thinner, and more stretchable than before treatment, and consequently better feeling and higher preference. In case of thermal sensation, they felt that fabric with Enzyme finishing was cooler than before treatment, while other fabrics were warmer. And they felt Silicone and SBS finishing fabric were even lighter than before, while Enzyme and Ultra soft finishing were even heavier. Most preferred was SBS washing, but Silicone finishing fabric received the highest tactile comfort, this is for they received higher feelings in the sensations of smooth, soft, stretchy, thin, light and wet. We displayed the tactile sensation words and finishing types together on 2D scale of 'softness' X axes and 'heaviness' Y axes.

의류 소재의 지식도에 따른 소재 정보탐색과 소재 기대편익

나영주,신유나,이창미,Na, Young-Joo,Shin, Yoo-Na,Lee, Chang-Mi 한국섬유공학회 2011 한국섬유공학회지 Vol.48 No.4

The purpose of this study was to investigate college student's behavior when searching for textile information or identification. We also looked into their expectations for apparel material according to textile knowledge. 260 questionnaire were collected and analysed using factor analysis, reliability analysis, and a t-Test using SPSS. The questionnaire for search behavior when looking for textile information was divided into 4 sections: subjective, objective, sustaining, and before-purchasing search. 5 Textile expectations were defined as tactile comfort, pilling or wrinkle free, ease of washing or maintenance, and ease of body movement. The results showed college students have relatively high textile knowledge than the awareness of the importance of textiles. They usually use sustaining search for textile identification and have the highest expectations in terms of a fabric pilling or being wrinkle free. The greater their awareness of textile importance they have, the higher the textile knowledge they have. It showed that the search behavior for textile information differed according to material knowledge, and the participants in the high knowledge group used their accumulated subjective and experienced textile information. The student's material expectations are related to their cognition for textile importance rather than their textile knowledge. When looking at search behavior for textile information, textile identification is found to be related their expectations for textile material positively.

의류산업의 정보화 교과목 개발을 위한 실습용 프로그램 개발

나영주,정경용,Na, Young-Joo,Jung, Kyung-Yong 한국섬유공학회 2006 한국섬유공학회지 Vol.43 No.4

We developed a demonstration software program for quick response system of apparel industry in order to educate students to get used to its expert system and computerized environment of this field. Merchandizing-Sourcing-Production-Retail shop chain of the processes in apparel company are the main pages in web to show students majoring clothing and textiles through the multimedia classroom. Up and down stream in the long process of apparel industry needs to shorten the process time that includes communication and instruct form letters between apparel company, textile company, sewing company and shops. Apparel company has pages and functions of online confirmation among designers and MDs, sample making order sheet, cost accounting sheet, and other worksheets. Textile company has textile list, confirmation of textiles and estimation sheet. Sewing company has sewing order sheet, production cost, manufacture process status and delivery order status. Four stage companies are connected to each other and can share, receive or send the data generated in each manufacturing process. This system can improve the understanding of students through displaying the whole process of apparel industry and testing each related tasks with many work sheets.

제품의 정보 유무에 따른 내의의 선호도와 촉감의 시간적 변화

나영주,우인철,Na, Young-Joo,Woo, In-Cheol 한국섬유공학회 2007 한국섬유공학회지 Vol.44 No.3

The efficiency and benefits of product information of products consisting of natural substances, such as bamboo, charcoal, green tea were explored. The underwear evaluation before/after getting product information was considered through questionnaire survey method. They were asked to guess the price and the natural substances before and after knowing the product information. The subjective responses of comfort and tactile sensation while subjects were exercising in a hot, dry environment were measured experimentally. Their preference and tactile sensations were different after the product information was told. In early running period, the subjects felt comfort mostly in the charcoal underwear, since it absorbed perspiration. In late recovery period, they felt comfort mostly in the bamboo underwear for its quick drying. New underwear products were assumed as higher price than controlled underwear, and after acquiring the product information they guessed much higher prices to the same product, answering the changes in the subjective sensation, too.

이미지 분석을 이용한 아라미드와 시뮬레이션 부직포의 기공 형태 측정

나영주,Na, Young-Joo 한국섬유공학회 1996 한국섬유공학회지 Vol.33 No.11

This is a report of characterization and simulation of pores in nonwoven fabrics and application of techniques developed for analyzing structural information by imaging. Aramid nonwoven fabrics and simulation of nonwoven fabrics were investigated in terms of pore round-ness, pore ellipticity and pore orientation. Changes in pore properties resulting from web density or variation in fiber orientation were characterized by geometrical technique for seven simulations and two aramid nonwoven fabrics. As the density of nonwoven fabric increased, pore roundness, ellipticity, and orientation did not change substantially, but as the fiber orientation of nonwoven fabric was randomized, the pore shape parameters changed significantly.

Compressional Properties of Fabrics at Low Pressure to Assess Real Fabric Handle

나영주,Na, Young-Joo 한국의류산업학회 1999 한국의류산업학회지 Vol.1 No.4

Twenty-three fabrics of varying thicknesses and weights were subjected to the maximum pressures of 10, 20, 35, 50 and 70 $gf/cm^2$ to yield pressure-thickness curves. Compression property values were plotted according to the amount of pressure applied to the samples. Pressure increases resulted in decreases in LC (compressional curve linearity), increases in WC (compressional energy) and no change in RC (compressional resilience). The best-fit lines are found separately according to pressures. The thickest fabrics exhibited the highest LC and WC values. The slopes varied different according to the pressure applied, with a pressure 50 $gf/cm^2$ exhibiting the steepest slope at We. The pressure of 20 $gf/cm^2$ correlated most closely with the hand-evaluation test results, yielding Spearmans correlation coefficients of .86 and .82 respectively for the LC and WC. 두께와 무게가 다양한 23종의 직물을 대상으로 최대하중 10, 20, 35, 50, 70 $gf/cm^2$의 5종류 다양한 조건 하에서 압축-두께곡선을 측정함으로써 저응력에서 압축특성과 두께, 태를 분석하였다. 최대하중이 증가함에 따라 LC(curve linearity)는 증가하였으며 WC(compressional energy)는 감소하였다. 또한, 최대하중에 따라 RC(compressional resilience)는 변화가 없었다. LC와 WC는 직물이 두꺼울수록 크게 나타났으며 RC는 중간 두께의 직물에서 가장 크게 나타났다. 최대하중 20 $gf/cm^2$에서 측정한 LC와 WC가 주관적 태 평가결과와 가장 상관이 깊었으며 Speamnan's rho는 .86과 .82였다.

보문 : 난방환경에서 온(溫)맵시 착용에 따른 생리적 반응 및 주관적 감각

나영주 ( Young Joo Na ),이지연 ( Ji Yun Lee ) 한국의류학회 2011 한국의류학회지 Vol.35 No.1

This study tests the performance of the recommended winter dress OnMapsi for an office worker through the analysis of skin temperature changes according to the heating environment. We tested and compared the effects of with/without undergarments for 4 male subjects in an artificial-climate chamber with two air temperatures of 19℃ and 22℃, 50±10% R.H. During the 60 minute experiment that simulated office work, the subjective feelings (that included thermal, humidity and comfort sensation, and skin temperature) were measured at equal intervals. The results show that the forehead and chest skin temperatures were not affected by air temperature or clothing type, while the hand and foot skin temperatures were affected at 0.3-0.9℃ depending on clothing type and 1.9-2.2℃ depending on air temperature. The mean skin temperature was decreased by the experimental time pass more with regular formal wear than with OnMapsi. The second experiment located the ambient temperature in which subjects wearing OnMapsi show equal skin temperaturesto those without undergarments at 22℃. Therefore it is possible to decrease heating temperatures to 18-21℃ in the office for winter OnMapsi wear that produces a skin temperature and thermal sensation that is the same as those at 22℃.

연구논문 : 비신축성 코르셋의 의복압으로 인한 생리적 반응의 변화

나영주 ( Young Joo Na ),김양희 ( Yang Hee Kim ) 한국의류산업학회 2011 한국의류산업학회지 Vol.13 No.6

The purpose of this study is to analyze the physiological effects of non-elastic corset on women`s health and pain through measuring the clothing pressure, subjective pressure sensation, blood velocity and metabolism. 5 women in their twenties were picked as our subjects, their avenge size being 85cm at bust girth, 69cm at waist girth. With the subjects each wearing a corset, we are testing in artificial environment with a treadmill according to the planned exercise procedures. The avenge pressure of the corset is 0.938 kPa (maximum 3.006 kPa at 45 degree front bowing), which is 102 times higher than the control group, averaging from 9.3 times higher at resting, 11.4 times at walking, 11.1 times at running. The effect of corset pressure on the physiological responses of the body is increased more when exercise than when resting. Clothing pressure increased in the order of the postures: sitting> standing with 45 degree bowing> standing. They experienced a high level of tighten discomfort of 5.6 in the scale of 1.0 to 7.0 due to the high pressure of the corset when resting, after intense exercise the level increased to 6.0, while without corset the level increased 1.7 to 2.2. With corset on, the blood circulation did not increase even though when the body exercised and blood flow became unbalanced making great gaps between both at the right and left finger tips. Perspirationof chest and back decreased 37.3% when wearing corset; 27.5% at resting, 56.7% at walking, 25.8% at running, and 39.0% at recovery: With corset on oxygen consume and metabolism increased 9.0%. 7.9%, respectively, which means the corset makes the body uncomfortable. Lung volume exchange VE decreased almost 4.1-7.3% with corset on and VCO2/V02, RER and total volume in lung, VT also decreased too, which means the digestion of stomach and lung function are inhibited due to the high corset pressure.

보문 : 직물의 표면 정지 공기층의 두께 측정

나영주 ( Young Joo Na ) 韓國衣類學會 1997 한국의류학회지 Vol.21 No.7

친환경 감성 어휘의 종류별 사용빈도 및 변화 양상

나영주 ( Young Joo Na ) 한국감성과학회 2011 감성과학 Vol.14 No.2

친환경 감성단어를 ``환경/자연, 소재/섬유, 인간, 형용사/기타`` 등의 4가지 영역으로 분류하고 각 단어에 대하여 그 출현시점, 빈도를 1999~2010년 상반기 간의 인터넷 섬유패션 신문 및 잡지를 중심으로 조사한 결과, 다음과 같은 결론을 얻었다. 가장 빈번히 출현한 단어는 ``자연, 환경, 면, 천연섬유, 건강, 신선한, 맑은, 보존, 하모니, 옥수수섬유, 로하스`` 등이었다. ``친환경`` 관련 감성단어의 출현시점을 살펴보면, 2000년도 이전부터 ``에코, 형상기억소재, 오가닉, 스파`` 등이 사용되어왔으며, 2000-1년도에 ``자연환경, 친환경, 스트레치소재, 웰빙의, 대체가능한, 재생가능한`` 등이 등장하였다. 2002-3년도에 ``스마트소재, 친환경소재, 그린`` 등이 사용되기 시작하였고, 2004-5년도에 ``쿨비즈, 로하스, 자연염색`` 등이 처음으로 사용되었다. 2006-7년도에 ``한방, 지속가능한, 웜비즈`` 등이 사용되었고, 2008-9년도에 ``그린슈머, 그린라이프, 태양에너지, 삼림욕`` 등이 섬유패션 분야에서 처음 사용되었다. 친환경 감성단어의 출현 양상을 살펴보면, 친환경 감성단어의 출현은 과거 어느 때보다 2008-09년도에 가장 많이 등장하고 있었는데 2000년도 초반에는 비교적 많이 등장하였으나 이후 다소 주춤하였고 이는 근래에 들어 다시 출현빈도가 높아졌다. 영역별로 살펴보면 ``환경/자연`` 관련 친환경 감성 단어가 과거보다 최근에 두드러지게 빈번히 사용되고 있으며, 이에 비해 ``인간`` 관련 단어는 주춤하여 약간 감소세이거나 동일한 빈도를 나타내고 있다. 또 ``형용사/기타`` 관련 단어는 약간 증가세이거나 과거와 동일한 빈도를 나타내고 있었다. ``소재/섬유`` 관련 단어는 패션잡지에서는 최근에 그 빈도가 줄어드는 경향을 보이는 반면 인터넷 신문에서는 약간 증가하는 추세를 보였다. The purpose of this study is to investigate sensibility words related with eco-friendly in the two media fashion magazines and internet newspapers and to analysis their appearance frequency and changes by the year through 1999~2010. Most frequently used words are ``nature, eco, cotton, natural fiber, health, fresh, clear, preservation, harmony, corn fiber, and Lohas``. The words are divided in 4 groups: ``Nature/Environment, Material/Fiber, Human, and Adjectives/Micell``. A point of appearing time is analyzed: ``ecology, memory-shape material, organic, spa`` were used before 2000, ``nature environment, eco-friendly, stretch material, wellbeing, substitute, recycling`` were in 2000-2001, ``smart material, eco material, green`` in 2002-2003, ``coolbiz, Lohas, natural dye`` in 2004-2005, ``herb medicine, sustainable, warmbiz`` in 2006-2007, ``greensumer, greenlife, solar energy, forest bath`` in 2008-2009. Looking into their changes, in early 2000, the words of eco-friendly emotion and sensibility had appeared frequently relatively, but later on they decreased, and again recently increased showing highest appearing frequency. ``Nature/Environment`` words have appeared recently very much, while ``Human`` sensibility words have not changed much or decreased a little. ``Adjective/Micell`` words has increased little bit recently. ``Material/Fiber`` words showed decrease at fashion magazine, while they increased at the pages of internet news.