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Current Issue
V.35,no.4,Dec 2023
https://doi.org/10.5764/TCF.
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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