Method for continuous pretreatment of a cloth
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United States of America Patent
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Aug 2, 1994
Grant Date -
N/A
app pub date -
Mar 3, 1993
filing date -
Mar 11, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for the pretreatment of a long cloth continuously in which a cloth to be subjected to desizing, scouring and bleaching for the pretreatment thereof is preliminarily subjected to souring treatment in the sodium chlorite solution prepared by absorbing the chlorine dioxide gas, which is exhausted from the subsequent bleaching process with the use of chlorite, in a solution of H.sub.2 O.sub.2 and NaOH, and accordingly it is possible to transport the long cloth continuously in the pretreating process speedily with no need of staying the cloth in folded state for increasing the productivity and improving the quality of the product, and further to render the pretreating apparatus compact so as suitable for the production of small lot products.
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