The Experts below are selected from a list of 84 Experts worldwide ranked by ideXlab platform
Hong Jee Kim - One of the best experts on this subject based on the ideXlab platform.
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Durable Press Finish of cotton/polyester fabrics with 1,2,3,4‐butanetetracarboxylic acid and sodium propionate
Journal of Applied Polymer Science, 2001Co-Authors: Eui So Lee, Hong Jee KimAbstract:Sodium hypophosphite (SHP) is widely used as an effective catalyst for the esterification reaction of cellulose with 1,2,3,4-butanetetracarboxylic acid (BTCA). However, catalysts containing phosphorus cause significant shade changes in dyed fabrics because of their reductive nature, and the effluents containing phosphorus cause eutrophication in rivers and lakes. Hence, their commercial application as catalysts in textile processing is limited. In this study sodium propionate and its catalytic activities as a nonphosphorous catalyst were investigated. The evidence for esterification and crosslinking of cellulose with BTCA in the presence of sodium propionate was shown by an improved wrinkle recovery angle and Durable Press rating of treated fabrics. The presence of ester groups in the treated fabrics was confirmed by FTIR analysis. The performance of sodium propionate as a catalyst for BTCA was comparable to that of SHP. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 81: 654–661, 2001
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Durable Press Finish of cotton polyester fabrics with 1 2 3 4 butanetetracarboxylic acid and sodium propionate
Journal of Applied Polymer Science, 2001Co-Authors: Eui So Lee, Hong Jee KimAbstract:Sodium hypophosphite (SHP) is widely used as an effective catalyst for the esterification reaction of cellulose with 1,2,3,4-butanetetracarboxylic acid (BTCA). However, catalysts containing phosphorus cause significant shade changes in dyed fabrics because of their reductive nature, and the effluents containing phosphorus cause eutrophication in rivers and lakes. Hence, their commercial application as catalysts in textile processing is limited. In this study sodium propionate and its catalytic activities as a nonphosphorous catalyst were investigated. The evidence for esterification and crosslinking of cellulose with BTCA in the presence of sodium propionate was shown by an improved wrinkle recovery angle and Durable Press rating of treated fabrics. The presence of ester groups in the treated fabrics was confirmed by FTIR analysis. The performance of sodium propionate as a catalyst for BTCA was comparable to that of SHP. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 81: 654–661, 2001
Eui So Lee - One of the best experts on this subject based on the ideXlab platform.
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A new catalyst for glyoxal Durable Press Finish of cotton fabrics
Fibers and Polymers, 2008Co-Authors: Eui So Lee, Eun Sook BangAbstract:Aluminum ammonium sulfate was used as a new catalyst for glyoxal to minimize the decrease of physical properties of Durable Press cotton fabrics, and the optimum treatment conditions such as the concentration of glyoxal, molar ratio of catalyst to glyoxal, curing temperature and time were investigated. The retention of tensile strength and the whiteness of fabrics treated with glyoxal/aluminum ammonium sulfate was increased as much as to the degree of that obtained with glyoxal/aluminum sulfate while wrinkle recovery angles were as good as those of the latter. Some additives such as DEG, polyurethane and softener were used to improve the physical properties. When DEG or polyurethane was added to the glyoxal padding solution, wrinkle recovery angle (WRA) significantly increased while tensile strength and whiteness were not influenced. DEG added to the glyoxal padding solution increased the durability of DP Finish. The softener added to the glyoxal padding solution increased the WRA of treated fabrics while it decreased the tensile strength slightly. The whiteness of fabrics treated with glyoxal alone increased while the WRA decreased slightly.
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Durable Press Finish of cotton/polyester fabrics with 1,2,3,4‐butanetetracarboxylic acid and sodium propionate
Journal of Applied Polymer Science, 2001Co-Authors: Eui So Lee, Hong Jee KimAbstract:Sodium hypophosphite (SHP) is widely used as an effective catalyst for the esterification reaction of cellulose with 1,2,3,4-butanetetracarboxylic acid (BTCA). However, catalysts containing phosphorus cause significant shade changes in dyed fabrics because of their reductive nature, and the effluents containing phosphorus cause eutrophication in rivers and lakes. Hence, their commercial application as catalysts in textile processing is limited. In this study sodium propionate and its catalytic activities as a nonphosphorous catalyst were investigated. The evidence for esterification and crosslinking of cellulose with BTCA in the presence of sodium propionate was shown by an improved wrinkle recovery angle and Durable Press rating of treated fabrics. The presence of ester groups in the treated fabrics was confirmed by FTIR analysis. The performance of sodium propionate as a catalyst for BTCA was comparable to that of SHP. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 81: 654–661, 2001
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Durable Press Finish of cotton polyester fabrics with 1 2 3 4 butanetetracarboxylic acid and sodium propionate
Journal of Applied Polymer Science, 2001Co-Authors: Eui So Lee, Hong Jee KimAbstract:Sodium hypophosphite (SHP) is widely used as an effective catalyst for the esterification reaction of cellulose with 1,2,3,4-butanetetracarboxylic acid (BTCA). However, catalysts containing phosphorus cause significant shade changes in dyed fabrics because of their reductive nature, and the effluents containing phosphorus cause eutrophication in rivers and lakes. Hence, their commercial application as catalysts in textile processing is limited. In this study sodium propionate and its catalytic activities as a nonphosphorous catalyst were investigated. The evidence for esterification and crosslinking of cellulose with BTCA in the presence of sodium propionate was shown by an improved wrinkle recovery angle and Durable Press rating of treated fabrics. The presence of ester groups in the treated fabrics was confirmed by FTIR analysis. The performance of sodium propionate as a catalyst for BTCA was comparable to that of SHP. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 81: 654–661, 2001
Charles Q Yang - One of the best experts on this subject based on the ideXlab platform.
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Evaluating Glutaraldehyde as a Nonformaldehyde Durable Press Finishing Agent for Cotton Fabrics
Textile Research Journal, 2000Co-Authors: Charles Q Yang, Weishu Wei, Douglas B. McilwaineAbstract:In recent years, extensive efforts have been made to find nonformaldehyde Durable Press Finishes to replace the traditional formaldehyde-based reagents. In this research, glutaraldehyde is evaluated as a nonformaldehyde Durable Press Finish for cotton fabrics. The infrared spectroscopy data show that the two aldehyde groups of glutaraldehyde react with cotton at elevated temperatures. There is a linear correlation between the fabric wrinkle recovery angle and the reduction in the carbonyl band intensity of the treated cotton cured at increasing temperatures. We have compared glutaraldehyde with low- formaldehyde DMDHEU and nonformaldehyde DHDMI as crosslinking agents for cotton. The fabric Finished with glutaraldehyde shows adequate wrinkle resistance, sufficient white ness, and high strength retention. As a nonformaldehyde Durable Press Finishing agent, the performance of glutaraldehyde is superior to that of DHDMI.
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quantitative analysis of the nonformaldehyde Durable Press Finish on cotton fabric acid base titration and infrared spectroscopy
Textile Research Journal, 1996Co-Authors: Charles Q Yang, Gagan D BakshiAbstract:Butanetetracarboxylic acid (BTCA) has been a promising nonformaldehyde Durable Press Finish for cotton fabrics to replace N-methyol reagents. Acid-base titration and Fourier transform infrared (FT-IR) spectroscopy are applied as quantitative analytical techniques to determine the amount of BTCA applied to cotton fabric and the amount of ester formed on the fabric after a curing process. Acid-base equilibria of BTCA are discussed. We find that FT-IR spectroscopy is a reliable quantitative analytical technique for quantifying BTCA and its ester on cotton fabric when the calibration standards are established by acid-base titration. Calibration curves and regression equations are pre sented. To determine the amount of ester formed on the Finished cotton fabric using FT-IR spectroscopy, it is necessary to use a sodium hydroxide solution to quantitatively convert carboxyl to carboxylate. The acid-base equilibria associated with this procedure are also discussed.
Douglas B. Mcilwaine - One of the best experts on this subject based on the ideXlab platform.
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Evaluating Glutaraldehyde as a Nonformaldehyde Durable Press Finishing Agent for Cotton Fabrics
Textile Research Journal, 2000Co-Authors: Charles Q Yang, Weishu Wei, Douglas B. McilwaineAbstract:In recent years, extensive efforts have been made to find nonformaldehyde Durable Press Finishes to replace the traditional formaldehyde-based reagents. In this research, glutaraldehyde is evaluated as a nonformaldehyde Durable Press Finish for cotton fabrics. The infrared spectroscopy data show that the two aldehyde groups of glutaraldehyde react with cotton at elevated temperatures. There is a linear correlation between the fabric wrinkle recovery angle and the reduction in the carbonyl band intensity of the treated cotton cured at increasing temperatures. We have compared glutaraldehyde with low- formaldehyde DMDHEU and nonformaldehyde DHDMI as crosslinking agents for cotton. The fabric Finished with glutaraldehyde shows adequate wrinkle resistance, sufficient white ness, and high strength retention. As a nonformaldehyde Durable Press Finishing agent, the performance of glutaraldehyde is superior to that of DHDMI.
Dai Wei - One of the best experts on this subject based on the ideXlab platform.
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Free formaldehyde DP Finish for jute/cotton blended fabric
2004Co-Authors: Dai WeiAbstract:In this article, jute/cotton blended fabric was pretreated with cellulase. By factorial experiment design, the best recipe and process conditions of formaldehyde free Durable Press Finish of jute/cotton blended fabric was optimized, which used citric acid as crosslinking agent, sodium hypophosphite as catalyst, TEA as additive. Results from pretreatment with alkali were compared with that with cellulase. Effects of DP Finish with citric acid and non-iron resin on crease resistance and wearing characteristics were researched.
