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A kind of manufacturing method of high proportion mechanical pulp sketch paper

A manufacturing method and technology of chemical-mechanical pulp, which is applied in the field of papermaking, can solve the problems of unsatisfactory sketch effect, unsmooth painting, easy to be damaged, etc., achieve the effect of fine texture, improve competitiveness, and ensure the strength and abrasion resistance of paper

Active Publication Date: 2020-09-11
YUEYANG FOREST & PAPER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the continuous improvement of high-yield pulp production technology, chemical-mechanical pulp produced from wood materials such as poplar and eucalyptus can meet the quality requirements and surface roughness requirements of paper. At present, the existing sketch paper has the problem of easy fluffing. After rubbing with an eraser, the fine and rough lines on the sketch paper are easily damaged, which has a great impact on the changes in the user's lines and strokes. The sketch effect is not ideal. Some professional painters or artists are not easy to apply lead when sketching, causing The painting is not smooth, not delicate, not vivid, and unnatural. Therefore, in response to this problem, our company has independently developed a high-proportion mechanical pulp sketch paper

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: 75g sketch paper

[0021] A, the bleached kraft softwood pulp is beaten, the beating concentration is controlled to be 2.5%, and the beating degree of beating is controlled to be 38 ° SR;

[0022] B, the bleached kraft softwood pulp and the chemical-mechanical pulp are configured according to mass percentages: bleached kraft softwood pulp 10%, chemical-mechanical pulp 90%, and the mixed pulp concentration is controlled to be 2.0%;

[0023] C. Use the sizing system to add auxiliary materials, the amount of auxiliary materials to the absolute dry pulp is in parts by weight: 0.5 parts of AKD glue, 0.02 parts of retention aid, 1.2 parts of cationic starch, 10 parts of light calcium carbonate, and prepare the diluted slurry to go online ;

[0024] D. After the wet paper sheet enters the press section for compound pressing, it undergoes pre-drying treatment until the dryness reaches 93%, and then the paper is coiled.

[0025] Preferably, in step C, the speed of t...

Embodiment 2

[0031] Example 2: 110g sketch paper

[0032] A, the bleached kraft softwood pulp is beaten, the beating concentration is controlled to be 2.5-3.5%, and the beating degree of beating is controlled to be 40 ° SR;

[0033] B, bleached kraft softwood pulp and chemical mechanical pulp are configured according to mass percentage: bleached kraft softwood pulp 15%, chemical mechanical pulp 85%, mixed pulp concentration control is 3%;

[0034] C. Use the sizing system to add auxiliary materials, the amount of auxiliary materials to the absolute dry pulp is in parts by weight: 0.8 parts of AKD glue, 0.03 parts of retention aid, 1.3 parts of cationic starch, 20 parts of light calcium carbonate, and prepare diluted slurry for online ;

[0035] D. After the wet paper sheet enters the press section for compound pressing, it undergoes pre-drying treatment until the dryness reaches 95%, and then the paper is coiled.

[0036] Preferably, in step C, the speed of the forming wire is controlled...

Embodiment 3

[0042] Example 3: 145g sketch paper

[0043] A, the bleached kraft softwood pulp is beaten, the beating concentration is controlled to be 3.5%, and the beating degree of beating is controlled to be 42 ° SR;

[0044] B, bleached kraft softwood pulp and chemical mechanical pulp are configured according to mass percentage: bleached kraft softwood pulp 20%, chemical mechanical pulp 80%, mixed pulp concentration control is 4.0%;

[0045] C. Use the sizing system to add auxiliary materials. The amount of auxiliary materials to the dry pulp is in parts by weight: 1.0 parts of AKD glue, 0.04 parts of retention aid, 1.5 parts of cationic starch, and 30 parts of light calcium carbonate. ;

[0046]D. After the wet paper sheet enters the press section for compound pressing, it undergoes pre-drying treatment until the dryness reaches 97%, and then the paper is coiled.

[0047] Preferably, in step C, the speed of the forming wire is controlled to be 130m / min.

[0048] Preferably, in step...

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Abstract

The invention discloses a manufacturing method of a high proportion chemi-mechanical pulp sketch paper. The manufacturing method of the high proportion chemi-mechanical pulp sketch paper includes theprocess steps of: subjecting bleached sulfate coniferous wood pulp to beating and conducting mixing with chemi-mechanical pulp in proportion, then adding auxiliary materials, and carrying out wet paper sheet making, pressing and drying. The manufacturing method of the high proportion chemi-mechanical pulp sketch paper provided by the invention improves the lead uptake rate of the sketch paper, achieves good lead tinting effect of B4 pencil lineation, solves the technical problem that the fine and rough lines on sketch paper are damaged after the sketch paper is erased by an eraser, enhances the erasing resistance of the sketch paper to the eraser, not only improves the competitiveness of enterprises, but also lays the foundation for long-term and healthy development of enterprises, and also brings economic benefits.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a method for manufacturing high-proportion mechanical pulp sketch paper. Background technique [0002] Sketch is the earliest form of painting that appeared in human history, and it is also the oldest artistic language. Simply speaking, sketch refers to the painting of a single color. During the Renaissance in the 15th century, people discovered its unique expressive charm. During this period, Italian painters Massaccio, Da Vinci, Michelangelo and others invented and used perspective, anatomy and composition. The principle provides a scientific basis for the three-dimensional sense and sense of space expressed in sketches, and gradually improves sketches. Since then, sketches have become a unique form of painting in the world as a nearly perfect painting form. Sketch paper is a sketch paper for painting art, which requires a rough surface and a good lead rate, that is, the l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21F11/00D21H11/02D21H17/17D21H17/29D21H17/67D21H21/10
CPCD21F11/00D21H11/02D21H17/17D21H17/29D21H17/675D21H21/10
Inventor 刘春景刘成良朱宏伟吴恒周金涛李丹林本平
Owner YUEYANG FOREST & PAPER CO LTD
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