Papermaking belt and method of manufacturing papermaking belt
AssigneeYamauchi Corporation
InventorsAtsuo Watanabe, Takahisa Hikida, Atsushi Watanabe
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Abstract
A papermaking belt, used for a shoe pressing belt, a calender belt and a sheet transfer belt, is prevented from cracking and inhibited from growth of a crack, and comprises a reinforcing substrate (6) embedded in a thermosetting polyurethane layer (7) so that the said reinforcing substrate (6) and the said thermosetting polyurethane layer (7) are integrated with each other and the outer peripheral surface and the inner peripheral surface of the belt are formed by polyurethane layers, the polyurethane layer forming the outer peripheral surface is made of a composition containing a urethane prepolymer having isocyanate groups on ends and a hardener containing dimethylthiotoluenediamine.
Claims7
A shoe pressing belt, for use in a shoe pressing apparatus comprising a press roll, a pressure shoe, and a felt member, the shoe pressing belt comprising a reinforcing substrate embedded in a thermosetting polyurethane layer and having an outer peripheral surface, for pressing against the felt member, and an inner peripheral surface, for pressing against the pressure shoe, the inner and outer surfaces being formed by said thermosetting polyurethane layer, wherein
- a portion of said outer peripheral surface is made of a composition containing a urethane prepolymer having isocyanate groups on ends and a hardener containing dimethylthiotoluenediamine.
Dependencies are inferred from the claim text.