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Optimization of the Desizability of Water‐Soluble Sizes. Part VI: Washing‐out Trials on CMS‐Size
Author(s) -
Ibrahim N. A.
Publication year - 1991
Publication title -
starch ‐ stärke
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.62
H-Index - 82
eISSN - 1521-379X
pISSN - 0038-9056
DOI - 10.1002/star.19910430506
Subject(s) - pulmonary surfactant , dissolution , adsorption , chemistry , water soluble , yield (engineering) , pulp and paper industry , materials science , chromatography , alkali metal , chemical engineering , composite material , organic chemistry , biochemistry , engineering
The present work aims to investigate the efficacy of incorporting certain additives, i.e. NaOH (2 g/l), and/or nonionic surfactant (1 g/l), in the washing bath with a view towards establishing the most appropriate conditions for washing‐out CMS‐size using the long‐liquor desizing treatment. Various washing parameters were studied, and optimum conditions for each treatment process were determined. Analysis of the desized warps for percent size removel has revealed that, for a given set of washing conditions, the rate of dissolution of CMS‐size can be increased and accelerated still further by raising the desizing temperature, by prolonging the desizing time, by minimizing the material‐to‐liquor ratio as well as by avoiding the over‐drying of the CMS‐sized warps. The results further suggest that the higher percentage of removed CMS‐sized observed with mild alkali treatment for 10 min compared with other treatments reflects differences in ability to adsorb on, swell of, diffuse in, and interact with the CMS‐size as well as the sized warps.