• Title/Summary/Keyword: cotton fiber

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The Effects of Ethre1 Spraying on Shortening Maturity, Yield of Seed Cotton before Frost and Fiber Quality of Upland Cotton (Ethrel처리가 맥후작 면화의 숙기단축과 수량 및 섬유품질에 미치는 영향)

  • Jung-Il Lee;Eung-Ryong Son;Dal-Ho Choi
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.20
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    • pp.115-121
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    • 1975
  • To achieve self-sufficiency in good production, cotton should be grown after barley in the southern part of Korea. But, this cropping system reduces cotton yields and fiber qualities in the current leading cotton varieties because of the short frost-free growth period. Ethrel-treated plots shortened the time to open boll by about 20days, increased the percentage of open bolls before the first frost from 38% to 93% and increased yield by 15-38%. There are not significant differences in staple length, tensile strength of the fiber, single bollweight, 100 seeds weight and germination percentage of the seeds between Ethrel-treated and untreated plots. Ethrel should be recommended to the farmers growing cotton after barley harvest.

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Performance Improvement of Nonformaldehyde Wrinkle Resistant Finished Cotton Fabrics Treated with Dialdehydes

  • Park, Hyung-Min;Kim, Yong-Min
    • Fibers and Polymers
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    • v.2 no.4
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    • pp.190-195
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    • 2001
  • Additives, such as sodium perborate and borax, were examined in dialdehyde wrinkle resistant finishing of cotton. Results indicated that the whiteness index(WI) of cotton treated with dialdehyde and additive showed about 90% of WI of the untreated cotton but with decrease in wrinkle recovery angle (WRA) due to inhibition effect of these additives. Effect of additive on the WRA reduction was more prominent with glutaraldehyde than with glyoxal. Reduction in WRA of cotton treated with both dialdehydes and boron compound was minimized by simultaneous addition of formic acid in the bath. Addition of formic acid was also generally beneficial in maintaining WI retentions after 8 months storage. Furthermore, boron compounds were also effective in improving retentions of mechanical properties. By FTIR analysis the residual aldehyde group was detected on the dialdehyde-finished cotton, whereas no peak was shown by addition of boron compounds. This suggested that the residual aldehyde group was a main cause of fabric yellowing on the dialdehyde-finished cotton. Dialhehyde with boron compound, therefore, can be used to replace a conventional formaldehyde-containing wrinkle resistant finishing of cotton.

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Effect of Fixation Methods on the Flame Retardant and Performance Properties of MDPPA/HMM treated Cotton (MDPPA/HMM처리 면직물의 고착방법에 따른 방염성과 물성의 변화)

  • 지주원;오경화
    • Journal of the Korean Society of Clothing and Textiles
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    • v.24 no.1
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    • pp.15-23
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    • 2000
  • Effect of fixation methods on the flame retardant(FR) and performance properties of MDPPA/HMM treated cotton fabrics were studied. Combination of three different fixation methods - premercerization, swelling agent treatment, pad dry cure fixation, and wet fixation - were applied to flame retardant finish of cotton with MDPPA/HMM. As a result, an increase in internal volume of cotton fiber by pre-mercerization and addition of swelling agent, and wet fixation increased %add-on of FR agent improving FR efficiency and wash fastness. Tensile strength of MDPPA/HMM treated cotton fabrics by wet fixation and swelling agent were slightly decreased, but that of premercerized cotton was improved. Wet fixated fabric showed lower bending rigidity and better compressional properties which improved fabric hand. Retention of swelling ability of cotton treated with MDPPA/HMM improved moisture absorption properties.

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A Study on the One Bath One Step Thermosol Dyeing of Polyester/Cotton Blended Fabrics (폴리에스터/면 혼방직물의 1욕 1단 서모졸 염색에 관한 연구)

  • Ro, Duck-Kil
    • Textile Coloration and Finishing
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    • v.20 no.1
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    • pp.16-21
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    • 2008
  • In this study the effects of swelling and fixing agent for the cotton side of polyester/cotton blended fabrics and the thermosol temperature on the dyeing properties and fastness. were investigated, when the polyester/cotton blended fabrics were dyed with a disperse dye which was able to dye both side of fiber by one bath one step thermosol process. The obtained results are as follows; The dye adsorption decreased with the increase of cotton blend ratio in polyester/cotton blended fabrics, when the ratio of swelling and fixing agent for cotton side was constant. As the thermosol temperature increased up to $210^{\circ}C$, the dye adsorption were increased, but that effect was less significant when the cotton blend ratio was higher.