Title:
ロール体
Document Type and Number:
Japanese Patent JP7412531
Kind Code:
B2
Abstract:
Provided is a roll body capable of effectively suppressing the occurrence of a telescope phenomenon even if the ambient temperature during transportation and storage of the roll body becomes higher than that during production of the roll body. A roll body RB according to the present invention configured by winding a belt-shaped web around a winding core that thermally expands or contracts due to an influence of a surrounding environment is characterized in that a linear expansion coefficient of the web in a thickness direction is in a range of 60 to 150 times a linear expansion coefficient of the web in a longitudinal direction, and the winding core has a linear expansion coefficient in a range of 20×10−6/K to 100×10−6/K and a Young's modulus in a range of 0.2 GPa to 0.5 GPa.
Inventors:
Shoto Torigoe
Application Number:
JP2022504979A
Publication Date:
January 12, 2024
Filing Date:
December 21, 2020
Export Citation:
Assignee:
Lintec Corporation
International Classes:
B65H18/28; B65H75/10
Domestic Patent References:
| JP2011178521A | ||||
| JP2006073047A | ||||
| JP2017100850A | ||||
| JP2005022766A |
Attorney, Agent or Firm:
Seika Patent Attorney Corporation
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