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US 11,866,279 B2Granted
Film wrinkle removing roller
AssigneeLG Chem, Ltd.
InventorsSung Hyun Yun, Ji Hun Kim, Joo Yong Park, Jae Choon Yang
Life of this patent
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Abstract
The present invention relates to a film wrinkle removing roller in which pattern rolls coated with rubber are positioned at both ends of a cylindrical roll made of Teflon, and a porous film comes into contact with the roll and the pattern rolls, such that the film may be prevented from wrinkling and a surface of the film may be prevented from being abraded due to friction between the film and surfaces of the rolls.
Claims6
A film wrinkle removing roller, comprising:
- a roll having a cylindrical shape;
- a pair of pattern rolls positioned at both ends of the roll and having patterns;
- and
- a roll fixing unit configured to fix positions of the roll and the pattern rolls,
- wherein the pair of pattern rolls are separable from the roll, and
- wherein the pair of pattern rolls are made of a different material having a different frictional force than a material and a frictional force of the roll.
3 more elements
Dependencies are inferred from the claim text.