• Journal of the Korean Wood Science and Technology
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• 제50권2호
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• pp.104-112
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• 2022

Indoor air quality is a very important environmental factor in modern society. However, air pollutants generated from various interior construction materials significantly affect the human body, including formaldehyde (HCHO) and volatile organic compounds that threaten public health by deteriorating indoor air quality. Effective in removing these harmful substances are porous materials, such as woodceramics. In this study, charcoal, a porous material, was added to rice husk, an agricultural by-product, and sawdust generated during the sawing process to prepare boards and ceramics at different mixing ratios, and the HCHO deodorization performance and far-infrared emission characteristics were measured. As the mixing ratio of charcoal increased, the deodorization rate of the boards and ceramics tended to increase. Overall, the deodorization rate was measured to be 80% to 90%, indicating that the boards and ceramics prepared with charcoal are suitable to be used for the purpose of deodorization. The effect of the material mixing ratio on far-infrared emissivity and emission power was insignificant.

• 대한설비공학회:학술대회논문집
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• 대한설비공학회 2009년도 하계학술발표대회 논문집
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• pp.739-744
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• 2009

The filter has long been used in purification processes for indoor air quality. To determine the deodorization effect of several filter materials in a full-scale air-handling system, the present study has been carried out using a wind tunnel equipped with a heat exchanger and various filter materials, such as commercial fabric, activated carbon(AC) and silver nano-particles attached to activated carbon(Ag-AC). The experiment was conducted using an odor substance with ammonia, acetaldehyde, acetic acid. The results obtained indicate that odor substance is substantially decreased on the moisture condensation on the surface of the heat exchanger. The fabric filter has no effect for removal of odor substances. The deodorization efficiency is found to be approximately 7% in the AC filter, while the deodorization efficiency is increased up to 10% using the Ag-AC filter.

• 한국염색가공학회지
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• 제27권1호
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• pp.50-61
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• 2015

The merits of activated carbon for removal of organic compounds have been well known in the various industrial fields. Fixing methods with activated carbon in the non-woven fabric have the advantages of fast adsorption and ease of handling when compared with bonding and coating methods. In this study, we have examined deodorization of non-woven fabrics fixed with activated carbon. We have been tested the deodorization of various kinds activated carbon and non-woven fabric structures. The effective mixing ratio of activated carbon was 5% on the weight of fabrics, which are closely related to the fabric structure. The activated carbon with higher mesh size show the better deodorization effect.

• 한국의류산업학회지
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• 제23권6호
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• pp.836-843
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• 2021

Recently, with an increase of interest in hygiene of textile products, research related to finishing technology to impart various functionalities, such as antibacterial and deodorizing properties, has also required. Therefore, in this study, the improvement of comfort was examined by analyzing the change of moisture characteristics and antibacterial and deodorizing properties of underwear fabric by chitosan microcapsule(CH-M) finishing. The results revealed that moisture absorption time of the fabric shortened, diffusion rate increased, while absorption rate slightly increased because of microcapsule finishing. In addition, the one-way transfer capacity of the microcapsule finished fabric was 17.69, which improved moisture transfer to one side, while OMMC showed the values of 0.32 and 0.37 for untreated and finished fabrics, respectively, which slightly increased after finishing. In the case of untreated fabric, antibacterial activity was 89.0% against Staphylococcus aureus and 70.3% against Klebsiella pneumoniae; however, both strains showed 99.9% antibacterial activity by CH-M finishing. An excellent bacterial reduction rate was also observed. In the case of the CH-M finished fabric, there was a deodorization effect exceeding 99% up to 120 minutes, and it showed an excellent deodorization effect of more than 99% even after 10 repeated washings.

• 한국의류학회지
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• 제24권5호
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• pp.686-695
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• 2000

Recently, with a growing interest of health and environment, chitosan which was good in no harmful effect to human body and environment, has been watched as the finish treatment of hygiene and pleasantness. The purpose of this study is to develop multifunctional fabric that was improved antimicrobial activity and deodorization rate, water absorption, static voltage and dye absorption by treatment of nylon 6 grafted with acrylic acid added in chitosan. FT-IR spectra of the grafted with acrylic acid added in chitosan shows peaks of COOH and NH2. Antimicrobial activity and deodorization rate of chitosan and grafted with acrylic acid added in chitosan were increased greatly than the control, durability of laundry of grafted with acrylic acid added in chitosan was good. In case of chitosan was dyed acid dyes and grafted with acrylic acid added in chitosan was dyed basic dyes, dye absorption of them were increased than the control. Moisture regain, absorption time and tensile strength of grafted with acrylic acid added in chitosan was increased greatly than the control.

• 한국산학기술학회논문지
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• 제17권6호
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• pp.199-206
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• 2016

본 연구는 다양한 세균에 오염된 신발을 효과적으로 살균하고 탈취할 수 있는 신발장을 설계하기 위한 최적의 조건을 확립하고자하는 목적으로 실시하였다. 신발장의 제작과 평가는 2014년 10월부터 2015년 9월까지 1년에 걸쳐 진행하였다. 항균성능의 평가는 JIS Z 2801:2010 규격에 따라 대장균과 황색포도상구균 균주에 대하여 실시하였고, 탈취효율은 한국공기청정협회 실내공기청정기 규격인 SPS-KACA002-132:2006 규격에 따라 실시하였다. 대장균과 황색포도상구균 균주에 대한 UV 조사시간에 대한 항균성능을 시험한 결과에서 30초 후에 99.9% 이상의 세균감소율을 보였고, 시험가스에 대한 평균 탈취효율은 42.5%를 보였다. UV램프로 5분의 점등과 25분의 소등을 반복하여 작동을 할 경우에 신발 내부와 신발장 내부 온도는 약 $40^{\circ}C$ 와 $25^{\circ}C$ 이하로 유지되었다. 신발장의 작동시간에 따른 온도 변화를 측정한 결과는 UV램프를 점등과 소등을 반복적으로 작동시켜 신발 내부의 온도를 적절하게 유지할 수 있었다. 결과적으로 실제 신발장 내부의 용적은 시험연구원의 챔버 용적보다 매우 작은 용적을 가지고 있기 때문에 시험결과의 값을 상대적으로 보정하게 되면 실제 탈취효율은 측정값보다 매우 클 것으로 판단이 된다. 또한 신발의 내부에서 악취를 유발하는 원인균인 박테리아를 반복적으로 살균하기 때문에 신발 내의 실제 탈취의 효과는 더욱 증가될 것이다. 추가 연구로 일정한 신발장 내부의 온도편차를 찾아야 할 것이다.

• 한국의류산업학회지
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• 제12권5호
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• pp.667-675
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• 2010

This research did chistosan and cation treatment to raise K/S vlue. In this result, chitosan 1%, cation 4% treatment showed the highest K/S value. Gilycyrrhizae radix dyeing showed the highest K/S value in pH3, pre-mordant, $30^{\circ}C$, 80 min.. Its color Y, YR. K/S value over 2.5 times showed in chitosan treatment fabrics, 5 times in cation treatment fabrics than cotton fabrics on the condition of none-mordant ones. In the antibacterial activity, staphylococus showed 99.9% in all fabrics. Klebsilla Pneumonia also showed 97.1% in chitosan treatment fabrics and it showed 99.9% in other all fabrics. In the deodorization and UV-cut effect, the more K/S value and the larger effect was showed.

• 한국의류산업학회지
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• 제12권4호
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• pp.523-530
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• 2010

The purpose of this research was to raise K/S value by mercerization and tannic acid treatment in cotton fabrics. K/S value was 2.84-3.56 in mercerized none-mordant fabrics and it is 5.12-5.36 in tannic acid treatment. As the result, it showed higher in processed cotton fabrics than in unprocessed ones. Processed cotton fabrics had high K/S value in pH 3, pre-mordant. Antibacterial activity showed 99.9% in tannic acid and Cu mordanted fabrics. Deodorization and UV-cut effect were showed a higher effect in dyed fabrics than in undyed ones.

• 한국염색가공학회지
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• 제22권1호
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• pp.21-27
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• 2010

The purpose of this research was to investigate the color characteristic and the dyeing properties of Glycyrrhizae Radix extract on cotton fabrics. The highest absorbance of Glycyrrhizae Radix extract was obtained in 75 v/v% of ethyl alcohol in water. Pre-mordanted cotton fabrics dyed at $30^{\circ}C$ and pH 3 for 80 minutes showed the highest K/S value. According to the dyeing conditions, the colors of the fabrics varied from yellow(Y) and yellowish red(YR) to greenish yellow(GY). The color fastness of the fabrics in dry-cleaning and water was 4~5 rating. The deodorization capacity and UV-cut effect of the dyed fabrics were higher than those of undyed ones.

• 복식문화연구
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• 제17권3호
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• pp.424-430
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• 2009

Taegwondo uniforms need powerful durability in fabrics against friction and shock because of higher exercising power. Therefore, in this study we developed more comfortable Taegwondo uniform for functional fabrics(deodorization rate, antibacterial activity and static charge). Chitosan is a deacetylated product of chitin, has widely been used in the biomedical sector, food industry, and textile industry. For the purpose of this study, we used the chitosan, which was congenial to the human body. Then, we compared the differences between the chitosan treated fabrics and non treated fabrics of Taegwondo uniform(100% polyester, 65% polyester/35% cotton). Chitosan was dissolved in 1% acetic acid. Also, the fabrics were washed using distilled water. Afterward, its treatment with chitosan was completed by padding the sample to its wet pick-up at $80{\pm}5%$ and by heating $150^{\circ}$ for 3 minutes. The chitosan treated Taegwondo uniform was improved on deodorization rate than non treated uniform. And the chitosan treated Taegwondo uniform was improved remarkably the antibacterial activity in all samples. In the further researches, the static charge was reduced in chitosan treatment uniform.