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Pigment treated offset paper and making technology

A technology of offset paper and pigment, which is applied in the field of offset paper and its manufacturing process, can solve the problems of printing through printing, poor visual effect, visual characteristics such as low whiteness, not exquisite and beautiful printing effect, etc., and achieve beautiful printing effect , high opacity, and good market potential

Inactive Publication Date: 2004-06-30
YUEYANG FOREST & PAPER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Compared with the pigment-finished offset paper invented by us, 1. The general offset printing paper has the following disadvantages: most of them are acidic papers (PH≤5), which tend to become brittle and yellow after a period of use, and have poor preservation; Features such as low whiteness and low opacity, which make the printing show through and the visual effect is not good; the printing gloss is not high, making the printing effect not exquisite and beautiful; the smoothness is not high, especially the microscopic roughness is high, making The ink consumption is large, the paper feels bad; the bulk is poor

Method used

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Examples

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Embodiment

[0024] Softwood BKP (bleached kraft softwood pulp), reed BKP (bleached kraft pulp) and poplar APMP (alkaline hydrogen peroxide pretreated thermomechanical pulp of poplar) that have been beaten to appropriate degrees Prepare 800kg of mixed slurry according to the ratio of 25:35:40, add 80kg of CaCO 3 Filler and other appropriate chemical additives (total amount about 2kg) are formulated into paper material, paper material is paper-made→pigment surface treatment (pigment 6.6g / m2)→infrared drying→soft roller calendering finishing→coiling-complexing Rolled pigment finishing paper 1000kg. Concentration of papermaking and netting is 0.7-0.8; pulp-to-net speed ratio is about 1.02; water content of paper surface treated with pigment is controlled at 2.0-3.0%; pigment amount is controlled at 5-10g / m 2 , The moisture content of the paper roll is controlled at 4-9%. The prepared pigment-finished offset paper is quantitatively 70g / m 2 , moisture is 5.8%, whiteness is 85%, opacity is 85...

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Abstract

The present invention discloses a pigment finished offset paper and its production process. Its production process is simple and its cost is reduced, when it it used for making large lot pigment finishing production, its paper-making process is smooth, its paper-forming rate is up to above 90%. Said invented pigment finished offset paper possesses good surface property, high printing brightness, high whiteness degree, good opaqueoness, enough deflection and and good thickness, can be used as colour printing paper, and possesses extensive application.

Description

technical field [0001] The invention relates to an offset paper and a manufacturing process thereof. Background technique [0002] Compared with the pigment-finished offset paper invented by us, 1. The general offset printing paper has the following disadvantages: most of them are acidic papers (PH≤5), which tend to become brittle and yellow after a period of use, and have poor preservation; Features such as low whiteness and low opacity, which make the printing show through and the visual effect is not good; the printing gloss is not high, making the printing effect not exquisite and beautiful; the smoothness is not high, especially the microscopic roughness is high, making The ink consumption is large, and the paper feels bad; the bulk is poor. 2. Compared with LWC (lightweight coated paper), pigment-finished offset paper has better stiffness and lower cost. Contents of the invention [0003] In order to overcome the abov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H21/16
Inventor 张栋基何林华郭勇为李甘霖孟军陈金山尹超龚群飞李丹章志勇
Owner YUEYANG FOREST & PAPER CO LTD
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