• 한국염색가공학회지
• /
• 제14권4호
• /
• pp.223-228
• /
• 2002

Cotton fabric was treated with $TiO_2$-PEG600 dispersion colloid by pad-dry-cure and wet-fixation process to improve the performance properties as well as UV-cut effect. As the concentration of $TiO_2$/PEG increased tensile strength, crease resistance, stiffness of treated cotton fabric increased. Application of wet-fixation method provided a further improvement in tensile strength, crease resistance, stiffness of treated cotton fabric. Cotton fabric treated with $TiO_2$/PEG was more efficient in UV-cut property than untreated cotton.

• 한국염색가공학회지
• /
• 제9권1호
• /
• pp.33-43
• /
• 1997

This study was carried out to investigate increasing the neutral substantivity of anionic dyes for cationic-modified cotton fabric treatied with cationic agent. In the present study 3-chloro-2-hydroxypropyltrimethyl ammonium chloride for reactive cationic agent was produced by reaction of epichlorohydrine with trimethylamine hydrochloride. 3-chloro-2-hydroxypropyltrimethylammonium chloride was converted in an aqueous solution of sodium hydroxide into glycidyltrimethylammonium chloride. By treating with this epoxy reagent the hydroxyl groups of cotton fabric was modified to trimethylammonium group through ether linkage. The introduction of new cationic sites into cotton fabric by pretreating with cationic agent improves the substantivity of anionic dyes with the cotton in dyebath. Dyeablity of the modified cotton fabric for direct and reactive dyes was much improved in a non-electrolytic or a little electrolytic dyebath and was proportional to the concentration of cationic agent.

• 한국염색가공학회지
• /
• 제4권2호
• /
• pp.69-75
• /
• 1992

This study was carried out to compare the effect of caustic soda with the effect of caustic potash on cotton fabric. Instead of caustic potash, sodium carbonate similar in chemical composition to caustic potash was used. The damage of cotton cellulose by repeated washing in various alkaline solutions at 8$0^{\circ}C$, 60 rpm was examined. The damage of cotton cellulose by the variation of copper number, carboxyl content, degree of polymerization and retained tensile strength was estimated. The results obtained at this study are as follows; 1. The damage of cotton by caustic soda was severer than caustic potash. The retained tensile strength at 50 washing cycle in caustic soda was 59% and in sodium carbonate was 80%. 2. By adding soap to caustic soda, the damage of cotton fabric decreased because contact area between fabric and air diminished by foam. 3. Detergency of EMPA 101 in caustic soda was lower than sodium carbonate. Consequently, using caustic soda that damage fabric severely and have lower detergency for caustic potash is unreasonable.

• 한국염색가공학회지
• /
• 제1권1호
• /
• pp.35-46
• /
• 1989

Experiments described in which cotton fabrics at different stages of chemical processing were abraded to different extents on a Stoll Abrasion Tester with three different abradants, namely, a worsted fabric, flax fabric and silicon carbide paper. The four different plain-weave cotton fabrics selected were 1) desized, 2) scoured and bleached, 3) mercerized, 4) resin-treated. The surface abrasive damages of treated fabrics were observed by SAM, and load-elongation percent retentions of abraded samples were measured by Instrong Tester. The result were as follows: 1. The maximum percent retention of load-elongation with three different abradants was exhibited by the scoured and bleached fabrics and the minimum by the resin finished fabric. 2. The electron micrographs of four different cotton fabrics abraded by flax, worsted fabric abradants for 900 rubs showed a large number of criss-crossing stray fibers in fabric structure. It may be the molecular adhesion for frictional resistance to be explained. 3. The electron micrographs of four different cotton fabrics abraded by silicone carbide abradants showed the form of busing or mashing fibers in fabric structure. The above might be on the basis of the ploughing theory.

• 한국의류학회지
• /
• 제30권2호
• /
• pp.296-305
• /
• 2006

This study evaluate the effect of laundering on the deformation of knitted spandex/cotton fabrics compared with that of knitted cotton fabrics. Commercial knitted spandex/cotton and knitted cotton fabrics for T-shits were laundered in a drum-type washing machine and dried in a tumble dryer. Wale spirality, shrinkage, elastic recovery and surface contour of knitted fabrics were investigated under different laundering conditions: washing temperature, presoaking time and washing cycles. Knitted spandex/cotton fabrics had a lower angle of spirality than knitted cotton fabrics. After the first washing cycle, the angles of spirality of all the fabrics had decreased greatly. Knitted cotton fabric of low density deformed more than that of higher density. Knitted spandex/cotton. fabric of low density shrank less, because of the greater extension given during heat-set. Permanent elongation length at the 80$\%$ extension was longer than at the 50$\%$ extension, and the knitted spandex/cotton fabric which was expanded greatly during heat-set had a lower elastic recovery rate. The surface appearance of the knitted spandex/cotton fabrics was worsl~ than that of the knitted cotton fabrics before laundering and after repeated laundering, because of the much protruded cotton fibers from the yarns.

• 한국의류학회지
• /
• 제29권2호
• /
• pp.347-355
• /
• 2005

Biodegradability of cotton/polyester blend fabric was investigated employing activated sluge test, soil burial test and enzyme hydrolysis. Surface changes of the degraded sample were observed through a microscopy. Changes in X-ray diffraction patterns and crystallinity were examined using X-ray diffractometer. Experimental results revealed that biodegradability of cotton/polyester blend fabric was proportional to the blending ratio of cotton, not showing any synergy effect. Polyester 100% hardly degraded in this study. Through the comparison of the experimental method it was shown that the biodegradabilities determined from activated sludge test and enzymatic hydrolysis except soil burial test were linearly related to the blending ratio of cotton in the blent fabrics. It is probably because the biodegradability determined from the retention of tensile strength of fabrics buried in soil was affected by the stress distribution of polyesters throughout the fabric. From the microscopic observations it was revealed that fungi were grown on the fabric surface and the colors turned yellow, brown and black. X-ray diffraction patterns showed that the heights of crystalline peak coming from cotton part in blend fabrics decreased whereas those coming from polyester part increased comperatively as time passed by. Crystallinities of cotton 100% fabric increased slightly at the begining and then decreased continuously.

• 패션비즈니스
• /
• 제11권1호
• /
• pp.125-135
• /
• 2007

Each cotton fiber is a unicellular hair collected from the seed of cotton plant. The fiber contains many convolutions along its length. Mercer was the first to suggest caustic soda treatment of cotton in commercial application. Mercerization has been commercially used since Lowe's suggestion to endow cotton with increased strength and affinity for dyes with additional properties such as fabric touch or luster. In this study, cotton fabric specimens were mercerized to investigate the changes in physical and mechanical properties pertaining to the hand or touch of fabrics. Physical properties were measured using the KES(Kawabata Evaluation System).

• 한국염색가공학회지
• /
• 제32권2호
• /
• pp.96-102
• /
• 2020

Recently, it was reported that chitosan or APTMS(3-aminopropyltrimethoxysila ne) treatment to cotton using the simple pad-dry-cure method has potential to prepare textile materials for military chemical warfare protective clothing. However, it is not confirmed which method is more efficient. Therefore, this study aims to quantitatively compare detoxification properties of chitosan treated cotton fabric with those of APTMS treated cotton fabric. Detoxification properties were evaluated using the well-known organic phosphorous nerve agent stimulant, diisopropylfluorophosphate(DF P). With the same amount of chitosan and APTMS on the surface of the cotton fabrics, APTMS treated cotton fabric exhibited 10% higher detoxification properties than chitosan treated cotton fabric based on the rate of DFP hydrolysis and half-live of DFP calculated from the DFP decontamination ratios of the treated cotton fabrics through time. Therefore, APTMS treatment can be more efficient method to prepare the textile materials for military protective clothing than chitosan treatment.

• 한국산학기술학회논문지
• /
• 제21권7호
• /
• pp.590-596
• /
• 2020

군용 방한복 상의 내피 원단은 원단과 패드타입 솜을 누빔(퀼팅)하는 형태로 제조되어 보온성을 부여하고 있다. 이렇게 제조된 방한복 내피 원단을 퀼팅원단이라고 하는데, 퀼팅원단은 윗실, 밑실이 각각 교차하여 원단과 솜을 같이 봉제하는 형태로 견고하게 제조되는 것이 일반적이다. 따라서 제조된 퀼팅원단에서 원단과 솜을 분리하는 것은 거의 불가능하며, 이를 분리할 경우 원단 및 솜에 상당한 손실을 가져올 수 있다. 본 연구에서는 퀼팅원단을 제조한 뒤 원단을 손상시키지 않고 후속가공을 통해 보온력을 증대시키고 두께 변화율을 안정화 시키는 방법에 대해서 연구하였다. 일반적인 솜 생산 시설 중 일부 설비를 이용하여 퀼팅원단을 통과시키는 비교적 간단한 방법을 통해 연구를 수행하였고 다음과 같은 결과를 얻을 수 있었다. 보온성의 경우 후속가공하기 전 퀼팅원단에 비해 clo값 기준으로 약 10 %가 상승한 효과가 나타났으며, 세탁 두께 변화율은 후속가공하기 전 퀼팅원단에 비해 약 10 % p. 안정화된 효과를 보여주었다. 이는 퀼팅원단 제작 후에도 후속가공을 통해 보온성을 향상시키고 세탁에 따른 두께 변화율을 안정화 시킬 수 있음을 나타낸다.

• 한국의류학회지
• /
• 제37권8호
• /
• pp.1107-1116
• /
• 2013

This study examined the use of cutinase and lipase to process cotton/polyester blend fabric. Optimum treatment conditions for cutinase and lipase were investigated for cotton/polyester blend fabric. The properties of enzyme-treated fabrics were evaluated and compared in optimal treatment conditions. In addition, the possibility to provide an enzymatic finishing on blend fabrics using mixed enzymes in a two-step process were studied. The weight loss of cotton/polyester blend fabrics with Triton X-100 was 0.8% and the dyeing property of blend fabrics with calcium chloride increased by a factor of 1.2. The use of two enzymes in combination with cutinase and lipase in the presence of auxiliaries resulted in a cotton/polyester blend fabric weight loss of 0.8%. In addition, the dyeing properties of cotton/polyester blend fabrics improved by a factor of 1.5 and the moisture regain of cotton/polyester blend fabrics improved by a factor of 1.16. However, no marked loss was observed in tensile strength. The surface morphology of cotton/polyester blend fabrics is modified through a two-enzyme treatment. The treatment of cotton/polyester blend fabrics with cutinase and lipase maintains cotton strength and improves the moisture regain of polyester fabrics.