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Patent Searching and Data


Title:
METHOD AND APPARATUS FOR MANUFACTURING PRODUCT ROLL
Document Type and Number:
Japanese Patent JP2018123350
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve the appearance quality of a product film subjected to vacuum process processing by preventing minute wrinkles and scratches from occurring on a film in the process of depressurizing a space including a raw material roll from the atmospheric pressure.SOLUTION: A method for manufacturing a product roll comprises: connecting a tip portion of a film 41 wound around a raw material roll 40 to an end portion of a lead film 41a; depressurizing the periphery of the raw material roll 40 from the atmospheric pressure atmosphere to a predetermined reduced pressure atmosphere in the state of pressing a pressing member 30 extended in the width direction of the film 41 against the outer peripheral surface of the raw material roll 40; separating the pressing member 30 from the raw material roll 40 in the reduced pressure atmosphere; and feeding the film 41 from the raw material roll 40 in the reduced pressure atmosphere to start vacuum process processing to the film 41.SELECTED DRAWING: Figure 1

Inventors:
HAYAKAWA HIROKI
TAGUCHI YUSUKE
MURAKAMI KYOJI
Application Number:
JP2017014425A
Publication Date:
August 09, 2018
Filing Date:
January 30, 2017
Export Citation:
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Assignee:
KANEKA CORP
International Classes:
C23C14/56; B65H16/00
Attorney, Agent or Firm:
特許業務法人池内・佐藤アンドパートナーズ