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Title:
TOUCH ROLLER, PAPER DRYING APPARATUS AND METHOD FOR PRODUCING PAPER
Document Type and Number:
Japanese Patent JP2017137597
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a technique which can efficiently dry wet paper while suppressing the occurrence of wrinkles when paper having a high basis weight and a low density, such as towel paper, is produced by a wet papermaking method, and which can efficiently produce high-quality paper.SOLUTION: When paper having a basis weight of 32 g/mor more and a density of 0.7 g/cmor less is produced by a wet papermaking method, while rotating around a center shaft in contact with wet paper being conveyed, a touch roller 1 according to the present invention brings the wet paper into pressure contact with the surface of a Yankee dryer roller, and includes a body part 2 having an outer peripheral surface which comes into contact with a pressure contact object. The body part 2 has a crown shape such that a diameter RC of a center part in a shaft length direction X is larger than a diameter RS of an end part in the shaft length direction X. The diameter RC is 570-850 mm, and the difference between the diameter RC and the diameter RS is 0.5-1.5 mm.SELECTED DRAWING: Figure 1

Inventors:
NAKANO DAISUKE
MORISHITA SHIGEO
Application Number:
JP2016019803A
Publication Date:
August 10, 2017
Filing Date:
February 04, 2016
Export Citation:
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Assignee:
TOKUSHU TOKAI SEISHI CO LTD
International Classes:
D21F3/08; D21F5/02
Domestic Patent References:
JP2009299208A2009-12-24
JPS60173200A1985-09-06
JPH11241289A1999-09-07
JP2004277168A2004-10-07
JP2005343597A2005-12-15
JP2012171227A2012-09-10
JPH11333360A1999-12-07
Foreign References:
WO1995010659A11995-04-20
Attorney, Agent or Firm:
Showa International Patent Office