Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
WASTEPAPER-COMPOUNDED NEWSPRINT PAPER AND METHOD FOR PRODUCING THE SAME
Document Type and Number:
Japanese Patent JP2004091957
Kind Code:
A
Abstract:

To provide waste paper-compounded newsprint paper which has good printability, a high tensile strength and a high tear strength, and can prevent the occurrence of a printing trouble such as paper breakage.

This waste paper-compounded newsprint paper compounded with water paper pulp is characterized by containing magazine waste paper pulp in an amount of ≥5% and having a tensile strength of 2.4KN/m defined by JIS-P 8113 and preferably further a tear strength of ≥380 mN defined by JIS-P 8116. The method for producing the waste paper-compounded newsprint paper is characterized by disintegrating and roughing the magazine waste paper pulp or waste paper pulp containing magazine waste paper in a waste paper pulp-treating process and then classifying the products with a ≤0.12mm slit in a classification degree of ≥10%.


Inventors:
WAKABAYASHI YASUYUKI
YAMADA ZENJI
Application Number:
JP2002253292A
Publication Date:
March 25, 2004
Filing Date:
August 30, 2002
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
DAIO SEISHI KK
International Classes:
D21H11/14; D21D5/02; (IPC1-7): D21H11/14; D21D5/02
Attorney, Agent or Firm:
Hiroshi Ohama