• 한국생활과학회지
• /
• 제9권1호
• /
• pp.33-45
• /
• 2000

The handle were observed by objective and subjective method as the washing was repeated for 4 kinds(sample A, B, C, D) of materials which have different water vapor transmission, and the change of water vapor transmission each others. The results of factor analyses for 18 polar adjective words on subjective handle test yielded 4 factors, that were 'elastic property', 'surface property', 'thickness and weight property' and 'thermal and rigid property'. The surface properties were deteriorated remarkably as washing was repeated and significant difference were observed. Compared with the primary hand value for each materials, the statistical difference of samples was shown at Koshi and Fukurami measured by the KES-FB system. Koshi decreased for all the materials after repeated washing, and Fukurami had a tendency to increase for all the materials in proportion to repeated washing. Significant difference of total hand value wasn't shown in repeated washing number, but in fabric types.

• Elastomers and Composites
• /
• 제49권4호
• /
• pp.336-340
• /
• 2014

본 연구에서는 광촉매 작용을 하는 이산화티타늄 광촉매를 polyester 섬유에 코팅하여 탈취, 항균 및 자외선 차폐에 대한 기능을 부여하고 그 특성을 알아보았다. 그 결과 탈취성능은 세탁 전과 반복 20회 세탁 후에도 97%이상 저감되는 것으로 나타났으며, 항균성은 균수가 99.9%이상 감소되는 것으로 나타났다. 그리고 Polyester 섬유를 20회 반복 세탁을 행하여도 이산화티타늄 광촉매의 이탈 없이 표면에 견고하게 부착되어 있음을 확인하였으며, 또한 가스분해성능도 세탁전과 20회 반복 세탁 후에도 유지하는 것으로 나타나 세탁내구성이 우수함을 확인하였다. 자외선 차폐성도 세탁 전과 비교하여 20회 반복 세탁 후에도 83%이상 차단되는 것으로 나타났다.

• 한국의류산업학회지
• /
• 제1권3호
• /
• pp.288-295
• /
• 1999

This study was conducted to examine the fatigue phenomenon of mechanical properties in tencel fabrics by repeated washing & shear and tensile deformation. The obtained results are as follows. After performing repeated shear tensile deformation, RT of tencel showed higher increase rate than that of cotton and rayon, whereas its WT and EM was a smaller decrease rate than that of them. This means that tencel's resistance to tensile deformation was the greatest. In the repeated washing and shear tensile deformation, tencel's 2HB, 2HG and 2HG5 showed a remarkable increase rate. In terms of deformation frequency, the greatest change rate appeared at the time of 1000 cycles of repeated shear tensile deformation and 15 times of repeated washing. In the hand value and THV, KOSHI showed a higher increase rate for tencel than for cotton and rayon in both repeated washing and shear tensile deformation, and NUMERI showed a higher increase rate. In the THV the change rate of rayon and cotton could be rarely seen but for tencel, it decreased. tencel's change rate of thermal insulation value by materials was 1.08%, and it increased as the washing frequency increased, compared to the grey fabrics, whereas the change rates of cotton and rayon were 0.74% and 0.22%, respectively. The qmax decreased in the order of cotton>tencel>rayon as the washing frequency increased.

• 한국의류학회지
• /
• 제41권3호
• /
• pp.527-536
• /
• 2017

This study investigated the detergency and functionality of laminating finished fabrics for outdoor wear based on repeated washing. Laminating finished fabrics were selected as the main fabrics for outdoor wear and used as test fabrics. The effects of outdoor exclusive detergent and normal neutral detergent were examined according to washing time, temperature, rpm and detergent concentration based on the use of a Terg-O-Tometer. Re-soiling of the test fabrics was measured by Florio-Mersereau. Permeability, water repellency, water resistance and absorbency were estimated to measure improvements and effects in regards to outdoor exclusive detergent in optimal washing conditions. The detergent effect of outdoor exclusive detergent was superior compared to normal neutral detergent. Re-soiling was lower with exclusive outdoor detergent than with normal neutral detergent. The measurement of functionality for laminating finished fabrics before and after washing indicated that functionality was decreased with repeated washing.

• 자연과학논문집
• /
• 제8권1호
• /
• pp.137-143
• /
• 1995

산성땀액에 면100% 내의(상의)를 처리하고 반복세탁.건조를 한후 내의의 물성변화를 연구, 검토하였다. 수축은 초기의 수축이 크게 나타났으며, 15회 반복세탁에 의해서도 강신도의 영향은 거의 없었으며 백색면 내의의 백색도(Hw)는 감소한 반면 색차($\Delta$E)와 황변도(YI)가 크게 증가하며 일광에 큰 영향을 받고 있음을 알았다. 또한 유색면 내의의 경우 세탁에 의해 색차가 크게 증가함을 보여 세탁초기의 탈색현상이 심각한 것으로 나타났다.

• 한국염색가공학회지
• /
• 제25권1호
• /
• pp.75-81
• /
• 2013

Colorimetric and wash fastness data after repeated wash cycles of Poly Lactic Acid(PLA) fiber were examined with C. I. Vat Blue 1, also other comparing 2 dyes (C. I. Vat Blue 35, C. I. Vat Blue 5), in this study. The fastness of three vat dyes on PLA fiber to repeated washing according to KS K 0430 A-2 regulation increased with dyeing temperatures. The $L^*$ values of the dyed material gradually increased with increasing numbers of wash. Also the f(k) values were decreased reversely. During repeated washing, the vagrant dyes were deposited especially on nylon, polyester, cotton of the adjacent multifiber. C. I. Vat Blue 5 displayed lowest color change to repeated washing of the three dyes used.

• 한국염색가공학회지
• /
• 제11권3호
• /
• pp.23-31
• /
• 1999

In order to investigate the detergency of the mixture of compact detergent and bleaching agent to fabric stained with a coffee and a red wine, respectively, and a japanese wet stained fabrics, to evaluation of detergency was studied under various washing conditions. In order to study the effect of alkaline agent addition on the detergency, the soda ash was added in the compact detergent system. The results are as follows : In a low temperature washing condition, the alkalinity of washing liquor effected more the removal of the composite stained fabrics than that of oilic stained fabrics. For the colored stained fabric such as red wine stained sample, the influence of the repeated washing treatment on the detergency was not significant factor. On the other hand, the influence of the repeated washing treatment for the coffee stained and japanese wet stained fabric on the detergency was gradually increased.

• 한국의류산업학회지
• /
• 제20권1호
• /
• pp.93-100
• /
• 2018

This study comparatively analyzed the changes in the dimensional stability and the mechanical properties of stretch knit fabrics associated with washings conditions in order to determine the most appropriate washing method. Polyester and spandex knit fabrics were washed 25 cycles with nine washing condition profiles that controled detergent, hardness. temperature and RPM. The knit fabrics with repeated washings were evaluated by dimensional stability and measured by the KES-FB system. Polyester and spandex fibers have good chemical resistance. However, the changes in the dimensional stability and the mechanical properties were observed in washed knit fabrics. After repeated washings, the knit fabrics washed in an alkali or neutral detergent had good dimensional stability compared with the knit fabric washed in functional detergent. The washed knit fabrics were extended, stiff, rough, and had a smaller volume. The changes were the result of the rearrange of polyester fibers which twisted around spandex core and chemical interactions involving the detergent and the physical and mechanical forces of washing. Especially, using an alkali detergent resulted in increased stiffness and roughness of the knit fabric. In conclusion, the washing in water with low hardness and a neutral detergent can minimize the changes in dimensional stability and mechanical properties of polyester and spandex knit fabric.

• 한국의류학회지
• /
• 제40권3호
• /
• pp.456-464
• /
• 2016

A new combat uniform is improved for added combat safety with various functions such as survivability, battle conformity and a camouflage performance system. Camouflage performance is an important factor in terms of combat survivability since it makes identification difficult and provide security. The combat uniform is worn under extreme conditions (exposure to ultraviolet light, sweat and friction) and an excellent color fastness to repeated washing is required. In this study, we investigated the color management, durability and discoloration of new combat uniform fabric with a digital pattern for camouflage performance to provide preliminary color management data. We examined color differences between standard fabric and mass-produced combat uniform fabrics, color differences between each military supply contract firm and color changes in combat uniforms after 60 washing cycles. The slight color differences between standard fabric and mass-produced combat uniform fabrics were tolerable under quality criteria of Republic of Korea Ministry of National Defense. However, the differences between the military supply contract firms were recognizable to the naked eye and increased with repeated washing. Continuous research on color fastness under repeated washing and color management is required to standardize reliability from each military supply contract firm for the daytime performance of a combat uniform's camouflage.

• 자연과학논문집
• /
• 제10권1호
• /
• pp.81-91
• /
• 1998

아우트-웨어로 많이 사용되는 면, 마, T/C, 모, 면니트의 직물을 이용하여 반복세탁에 따른 수축률, 마모 강도, 인장 강도, 필링, 방추도 등의 물리적 성질 변화에 대해 연구 조사하였다. 또한 모섬유의 경우 각각의 물리적 성질에 있어서 건식 세탁과 습식 세탁에 의한 차이를 비교 검토하였다. 실험결과 반복 세탁에 의해 인장강도는 그다지 변화하지 않았으나 방추도가 크게 저하하였으며 pill의 발생이 크게 증가하였다. 습식 세탁에 의해 면니트는 처짐 현상을 보였고 모의 경우 고온, 고알칼리 하에서의 반복 세탁에 의해 큰 수축현상을 나타냈으며 이러한 수축은 두께의 증가를 가져와 마모 강도를 증가시키는 결과를 가져왔다. 건식 세탁모가 습식 세탁모에 비해 모든 물리적 성질에 있어 훨씬 우수한 것으로 나타났다.