Title:
PRODUCTION OF SQUARE PAPER PIPE
Document Type and Number:
Japanese Patent JPS5287713
Kind Code:
A
Abstract:
PURPOSE: Production of a square paper pipe by pressing the flat surface of a paper pipe, which is prepared by winding a paper tape, by press rollers to form a square paper pipe and then rounding angled corners with an endless belt.
Inventors:
OZAKI SHIGEO
SAITOU TOSHIHARU
SAITOU TOSHIHARU
Application Number:
JP476576A
Publication Date:
July 22, 1977
Filing Date:
January 19, 1976
Export Citation:
Assignee:
TOPPAN PRINTING CO LTD
International Classes:
B65B11/04; B31C1/00; B31C3/00; B65B11/56; (IPC1-7): B31C1/00; B65B11/56
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