Shoe press belt for paper-making machine and process for producing the same
AssigneeIchikawa Co., Ltd.
InventorsAtsushi Ishino, Nobuharu Suzuki, Shintaro Yamazaki, Takeshi Sawada, Tomoyuki Kawamata
Life of this patent
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Abstract
A shoe press belt for paper-making machine that reduces belt damages attributed to the friction between belt and shoe. The shoe press belt for paper-making machine having a wet paper contact surface and a shoe contact surface, is characterized in that the shoe press belt for paper-making machine has a base member and at least a polymer elastic part constituting the shoe contact surface and that the shoe contact surface of the polymer elastic part has a surface roughness (Ra) of 1.0 to 3.5 μm.
Claims8
A shoe press belt for paper-making machine, said shoe press belt having a wet paper contact surface and a shoe contact surface, wherein said shoe press belt comprises a base member, and a polymer elastic part comprising said shoe contact surface,
- wherein a surface roughness of the shoe contact surface of the polymer elastic part is Ra=1.0 to 2.98 μm.
A method for producing a shoe press belt for paper-making machine on a mandrel (rotary cylinder), comprising
- controlling, polishing or engraving in pattern said mandrel so that a surface roughness of the shoe contact surface of said shoe press belt is Ra=1.0 to 2.98 μm, and
- impressing said shoe contact surface by forming an inner peripheral face having a shoe contact surface of the shoe press belt on the mandrel.
In a paper-making machine comprising a shoe press belt having a wet paper contact surface and a shoe contact surface, the improvement comprising using a shoe press belt comprising a base member, and a polymer elastic part comprising said shoe contact surface,
- wherein a surface roughness of the shoe contact surface of the polymer elastic part is Ra=1.0 to 2.98 μm.
Dependencies are inferred from the claim text.