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Patent Searching and Data


Title:
MANUFACTURING METHOD FOR ROLL BODY, AND ROLL BODY
Document Type and Number:
WIPO Patent Application WO/2021/006314
Kind Code:
A1
Abstract:
Provided are: a manufacturing method for a roll body, said method making it possible to effectively reduce a level difference caused at a winding start end of a sheet; and such a roll body. One aspect of the present invention provides a manufacturing method for a roll body 10 including a winding core 11 and an elongate sheet 12 that is wound around an outer circumferential surface 11A of the winding core 11, said method including: a step for applying a coating material 18 onto the outer circumferential surface 11A of the winding core 11 along a width direction DR1 of the winding core 11; a step for placing, on the outer circumferential surface 11A, a winding start end 12A in a longitudinal direction DR2 of the sheet 12; and a step for winding the sheet 12 around the winding core 11 and filling at least a first gap 13 with the coating material 18. The application of the coating material 18 or the placement of the winding start end 12A is performed such that the coating material 18 comes into contact with or close to a distal end surface 12A1 located in the longitudinal direction DR2 of the winding start end 12A, and the first gap 13 is located between the winding core 11 and the first winding of the sheet 12 and is in contact with the distal end surface 12A1.

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Inventors:
TORIMOTO MASAHIRO (JP)
OISHI MEGUMI (JP)
AKIYAMA RYO (JP)
NAKAZAWA RYO (JP)
MABASHI HIRODAI (JP)
TANIGUCHI AKIRA (JP)
HASHIMOTO KOJI (JP)
NAGAMACHI RYUSUKE (JP)
NAKANO MASANOBU (JP)
OOHARA YUJI (JP)
Application Number:
JP2020/026863
Publication Date:
January 14, 2021
Filing Date:
July 09, 2020
Export Citation:
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Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
B65H75/10; B65H75/28
Foreign References:
JP2011201634A2011-10-13
JP2016155619A2016-09-01
Attorney, Agent or Firm:
YOKOTA Nobutaka et al. (JP)
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