| Project/Area Number |
15500506
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
General human life sciences
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| Research Institution | Chiba University |
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Principal Investigator |
YATAGAI Mamiko Chiba University, Faculty of Education, Associate Professor, 教育学部, 助教授 (20200595)
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| Project Period (FY) |
2003 – 2004
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| Project Status |
Completed (Fiscal Year 2004)
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| Budget Amount *help |
¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 2004: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2003: ¥2,500,000 (Direct Cost: ¥2,500,000)
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| Keywords | textile finishing / DP finishing / cellulose / soiling / soil removal / iron oxide / fatty acid |
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| Research Abstract |
Polycarboxylic acid is one of the most promising nonformaldehyde DP (durable press) finishing agents for cellulosic materials. The objective of this study was to investigate soiling and soil removal properties of polycarboxylic acid-based DP finished cellulosic fabrics. The results of this study are summarized as follows.
1.Characteristic properties of finished fabrics Wrinkle resistance as a measure of DP performance was affected by various factors such as polycarboxylic acid used and catalyst concentration. Polycarboxylic-acid based finishing caused fabric yellowing, a decrease in moisture regain and an introduction of functional groups on the fabric ; ester bonds between polycarboxylic acid and cellulose and unesterified carboxyl groups.
2.Soiling properties of finished fabrics Finished cotton fabrics, especially citric acid finished cotton, were more susceptible to soiling with iron oxide compared to the unfinished control. A linear correlation was observed between the degree of soiling and the carboxyl content on the fabric. Improved soil resistance was observed in some cases depending upon a combination of polycarboxylic acid, fiber and soil.
3.Soil removal properties of finished fabrics Finished cotton fabrics, especially citric acid finished cotton, released iron oxide soil more easily compared to the unfinished control in mild alkali conditions and in hard water. Increased or decreased detergency was observed according to washing condition and soil.
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