Title:
PRINTING PAPER
Document Type and Number:
Japanese Patent JP2016145446
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a non-coating paper type light weight printing paper good in white degree and opacity and having surface strength capable of bearing off-set printing.SOLUTION: There is provided a printing paper having basis weight of 75 g/mor less, containing black pigment and fluorescent whitening dye by paper making (except multi-ply paper making ) a paper material to which the black pigment and the fluorescent whitening dye with the content of the contained black pigment X (g/m) in a range of 0.001≤X≤0.01, the content of the contained fluorescent whitening dye Y (g/m) in the range of 0.03≤Y and average primary particle diameter of the black pigment D (μm) in the range of 0.05≤D≤0.5.SELECTED DRAWING: None
Inventors:
NAKAMURA ATSUSHI
Application Number:
JP2016077813A
Publication Date:
August 12, 2016
Filing Date:
April 08, 2016
Export Citation:
Assignee:
MITSUBISHI PAPER MILLS LTD
International Classes:
D21H19/10; D21H21/28; D21H21/30
Domestic Patent References:
| JP2011026754A | 2011-02-10 | |||
| JPS6485396A | 1989-03-30 |