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V.35,no.4,Dec 2023 |
https://doi.org/10.5764/TCF. |
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Journal |
Textile Coloration and Finishing |
Year / Vol., Issue, Month |
2019 / V.31,no.4,Dec |
Title |
Improvement of Migration Fastness of Perfluorocarbons-free Synthetic Suede by Chitosan Pretreatment |
Authors |
Hye Mi Lee*, Ah Rong Kim and Dae Geun Kim |
Institution/Affiliations |
DYETEC |
Pages/Total page |
pp.258 ~ 267 / 10 |
Language |
Korean |
Abstract |
Synthetic suede without PFCs(perfluorinated compounds) are followed by subsequent
high temperature treatment. But migration fastness of synthetic suede may be
reduced due to sublimation of disperse dyes that results from the high temperature treatment. Therefore, in this study, chitosan treatment was used to improve the migration
fastness before polyurethane dipping process. Polyester fiber was treated with sodium
hydroxide aqueous solution before chitosan processing. This samples treated with a chitosan concentration upto 0.5% were dyed and coated with PUD(polyurethane dispersion).
The migration fastness was most improved at 0.35% application. This is presumably due
to the fact that the chitosan may increase the dye-binding capability through intermolecular hydrogen bonding. |
Keywords |
PFCs-free, synthetic suede, migration fastness, chitosan-acetic acid, pretreatment |
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