B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
117/125, 117/114
B05D 1/38 (2006.01) D21H 19/82 (2006.01) D21H 19/12 (2006.01) D21H 19/22 (2006.01) D21H 27/10 (2006.01)
Patent
CA 1199536
ABSTRACT The invention relates to a method for the manufacture of packing material with good gas-tightness properties by coating a web or a sheet of paper with an aqueous solution containing polyvinyl alcohol and a thickener, e.g. carboxymethylcellulose, whereupon the water is boiled away and the costing layer formed is covered with a thin plastic film.
421175
Knudsen Gunnar
Rauser Jan
Marks & Clerk
Tetra Pak International Ab
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