Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Coated paper

A technology of coated paper and coating layer, applied in the field of coated paper

Inactive Publication Date: 2004-05-19
OJI PAPER CO LTD
View PDF2 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the actual situation is that there are no examples of coated paper for printing that are excellent in back staining of printing ink, paper runnability, and printability.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] [Preparation of Sheet Substrate]

[0050] Add 5 parts of light calcium carbonate (PC: made by Shiraishi Calcium) to 90 parts of LBKP (freeness (CSF) = 450ml) and 10 parts of NBKP (freeness (CSF) = 450ml) pulp slurry, for 100 parts of pulp Add 1.5 parts of starch, 0.1 part of alkenyl succinic anhydride and 0.6 part of aluminum sulfate, use a fourdrinier paper machine to make paper from the paper, apply it with a surface sizing device, and dry it to make the starch coated in the papermaking process The amount of cloth reaches 1g / m2 on a dry weight basis 2 , use a paper machine calender for smoothing treatment, so that the Bekk smoothness is 30 seconds, and the obtained quantitative is 80g / m 2 A paper base material (hereinafter referred to as a paper base material) as a sheet-like base material.

[0051] [Preparation of Coating Liquid]

[0052] Add 4 parts of spherical particles (ingredients: light calcium carbonate with an average particle diameter of 10 μm, manufactur...

Embodiment 2

[0056] In addition to changing the briliant S-15 of Example 1 into UW-90 (ingredients: kaolin, manufactured by Engel Hard Co.), 0.2 parts of sodium polyacrylate (trade name: Aron A-9, (manufactured by Toagosei Co., Ltd.) was used as a dispersant and water to disperse to a concentration of 70% with a Cores disperser to obtain a pigment slurry, and the rest was the same as in Example 1 to obtain a coated paper.

Embodiment 3

[0058] In addition to changing the number of parts of UW-90 in Example 2 from 96 parts to 99.5 parts, 4 parts of spherical particles (ingredients: light calcium carbonate with an average particle size of 10 μm, manufactured by Mizhuang Lime Industry Co., Ltd.) were changed to 0.5 parts Except for the rest, the coated paper was prepared in the same manner as in Example 2.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Heightaaaaaaaaaa
The average particle sizeaaaaaaaaaa
The average particle sizeaaaaaaaaaa
Login to View More

Abstract

Provided is a coated sheet having an excellent traveling performance as paper in a printing machine, when used in sheet-fed offset printing, and capable of giving high-quality images, without causing offset nor blocking on the back surface thereof after printed. This coated sheet has a sheet-shaped base material and is formed by applying a coating layer consisting mainly of a pigment and an adhesive to at least one surface of the base material, wherein the surface of the coating layer has convexities having a height of 0.5-10.0[mu]m in a number of 10-1,000counts / mm2, and the coating layer contains a lubricant in an amount of 0.1-5.0mass%.

Description

technical field [0001] The present invention relates to a coated paper having improved back staining (back printing) property caused by printing ink, excellent paper runnability, and good printing workability. Background technique [0002] Lithographic printing, which is a form used for commercial printing, is divided into rotary type and single-page type according to the form of paper used. Rotary printing uses roll paper for continuous printing, and the printing ink is rolled up after a drying process, or cut into desired sizes for storage. On the other hand, in the cut-sheet type, the paper is fed one by one, there is no ink drying process after printing, and the printed paper is stored overlappingly, so it is easy to cause overlapping conveyance due to the adhesion of the paper in the paper supply part, In the storage part, due to the contact between the undried ink and the printed back, the printing ink is prone to stain the back of the paper. In severe cases, the undr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): D21H19/00
Inventor 时吉智文柳泽健司山本真之
Owner OJI PAPER CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com