Title:
BULKY PAPER WITH RUGGED PATTERN AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2009/145042
Kind Code:
A1
Abstract:
A process for producing bulky paper having a rugged pattern, characterizing by: forming a wet-process mixture sheet constituted of a high-basis-weight region and a low-basis-weight region from a papermaking feedstock obtained by dispersing a fibrous material and heat-expandable particles in water, the heat-expandable particles in each region having been evenly dispersed in the fibers; and subsequently heating the wet-process mixture sheet to expand the heat-expandable particles and thereby form a rugged pattern. In the process, the rugged parts of a sheet of bulky paper can be freely designed.
Inventors:
NOZAKI SATOSHI (JP)
SHIRAI TSUTOMU (JP)
SHIRAI TSUTOMU (JP)
Application Number:
PCT/JP2009/058718
Publication Date:
December 03, 2009
Filing Date:
April 28, 2009
Export Citation:
Assignee:
UNICHARM CORP (JP)
NOZAKI SATOSHI (JP)
SHIRAI TSUTOMU (JP)
NOZAKI SATOSHI (JP)
SHIRAI TSUTOMU (JP)
International Classes:
D21H21/56; D21H27/02
Foreign References:
| JP2006028654A | 2006-02-02 | |||
| JPH02264093A | 1990-10-26 | |||
| JPS6059198A | 1985-04-05 | |||
| JPS6059198A | 1985-04-05 |
Other References:
See also references of EP 2281942A4
Attorney, Agent or Firm:
AOKI, Atsushi et al. (Toranomon 37 Mori Bldg. 5-1, Toranomon 3-chome, Minato-k, Tokyo 23, JP)
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