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seen framstella a forpackningsmaterial with good gastethetsegenskaper
seen framstella a forpackningsmaterial with good gastethetsegenskaper
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机译:看到生产出具有良好招待特性的包装材料
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摘要
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, subsequently the water is boiled away and the coating layer formed is covered with a thin plastic film.
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