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Cigaret filter plugs were manufd. by using a fibrous paper web running lengthwise, which were characterized by a bending and laminating method, was developed by bending the paper web crosswise, overlapping, and laminating one web on another to form a multiple plate layer. This laminated material, prepared with paper web, could be fed effectively to the roping machine.
KR7100700A1971-05-201971-05-20Method of producing fibrous filter plugs for tobacco goods
KR790000061B1
(en)