Patent classifications
D
TEXTILES; PAPER
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D21
PAPER-MAKING; PRODUCTION OF CELLULOSE
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D21H
PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
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23/00
Processes or apparatus for adding material to the pulp or to the paper
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D21H23/02
characterised by the manner in which substances are added
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D21H23/32
by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper
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D21H23/38
the fluid material being applied with a special device, e.g. with a roll in a flooded-nip inverted blade coater
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D21H23/38

Water & Oil Impermeable Paper Products, Paper Bags and the Process for Manufacturing the Same
20230220627 · 2023-07-13 ·

Paper products, which could be made into bags, wrappers, receptacles, cups, boxes, and the like, are disclosed. The paper is coated with a water-resistant and oil resistant coating. In the case of forming paper bags, pouches, and the lie, the adhesives that could be used to bond the coated side in juxtaposition that can form a high bonding power can be any latex-base modifier copolymer, or modified loctite by heat sealing or the use of styrene ester copolymer are also disclosed.

Water & Oil Impermeable Paper Products, Paper Bags and the Process for Manufacturing the Same
20230220627 · 2023-07-13 ·

Paper products, which could be made into bags, wrappers, receptacles, cups, boxes, and the like, are disclosed. The paper is coated with a water-resistant and oil resistant coating. In the case of forming paper bags, pouches, and the lie, the adhesives that could be used to bond the coated side in juxtaposition that can form a high bonding power can be any latex-base modifier copolymer, or modified loctite by heat sealing or the use of styrene ester copolymer are also disclosed.