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Paper making process of single-side blue engineering raw paper

一种造纸工艺、蓝色的技术，应用在造纸领域，能够解决涂层油墨吸收率不高、纸面颜色深浅不一、透气性差等问题，达到紧度小、透气度好、降低吸水值的效果

Active Publication Date: 2018-11-06
WEIFANG HENGLIAN SPECIALTY PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] At present, the single-sided blue engineering paper has the following defects: (1) The ink absorption rate of the coating is not high, and the ink spreads after printing; (2) The uniformity is poor, the air permeability is poor, the color of the paper surface is different after coating, and the smear is serious ; (3) Folding and warping during printing

Method used

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  • Paper making process of single-side blue engineering raw paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Example 1 A papermaking process of single-sided blue engineering paper

[0047] 1. Pulping

[0048] (1) Preparation of long fibers: pulverized by a hydropulper, and the 2.6mm bleached kraft softwood long fiber wood pulp was passed through a double disc refiner beater, the long fiber beating current was 300A, the beating concentration was 4.0%, and the beating degree was 35° SR;

[0049] (2) Preparation of poplar pulp: self-made poplar pulp with a fiber length of 0.85-0.9 mm is transferred through the pulp pool to the knocking pool, and then passed through a double-disk beating machine with a beating current of 270A and a beating concentration of 4.1%. The degree of beating is 36°SR, and the slurry is prepared.

[0050] 2. Mixed pulp

[0051] Start the automatic batching equipment, and pump the long-fiber pulp and poplar pulp into the mixing tank respectively. The ratio of long-fiber pulp to poplar pulp is 1.2:1, that is, the long-fiber pulp accounts for 55% of the t...

Embodiment 2

[0071] Example 2 A papermaking process of single-sided blue engineering paper

[0072] 1. Pulping

[0073] (1) Preparation of long fibers: pulverize through a hydropulper, and pulverize 2.7mm bleached kraft coniferous long fiber wood pulp through a hydropulper, transfer it to the knocking pool, pass through a double disc mill beater, and Fiber beating current 310A, beating concentration 4.0%, beating degree 37°SR;

[0074] (2) Preparation of poplar pulp slurry: self-made poplar pulp with a fiber length of 0.87 mm is transferred to the front pool through the pulp pool, and then transferred to the rear pool of poplar pulp through a double-disc mill beater, and the beating is controlled The power is 120-145kwh, the beating current is controlled at 280A, the beating concentration is 4.1%, and the beating degree is 36°SR to prepare poplar pulp.

[0075] 2. Mixing and pulping

[0076] Start the automatic batching equipment, and pump the long-fiber pulp and poplar pulp into the mi...

Embodiment 3

[0096] Example 3 A papermaking process of single-sided blue engineering paper

[0097] 1. Pulping

[0098] (1) Preparation of long fibers: pulverize through a hydropulper, and pulverize 2.7mm bleached kraft coniferous long fiber wood pulp through a hydropulper, transfer it to the knocking pool, pass through a double disc mill beater, and Fiber beating current 320A, beating concentration 4.0%, beating degree 38°SR;

[0099] (2) Preparation of poplar pulp slurry: self-made poplar pulp with a fiber length of 0.87 mm is transferred to the front pool through the pulp pool, and then transferred to the rear pool of poplar pulp through a double-disc mill beater, and the beating is controlled The power is 120-145kwh, the beating current is controlled at 280A, the beating concentration is 4.1%, and the beating degree is 38°SR to prepare poplar pulp pulp.

[0100] 2. Mixed pulp

[0101] Start the automatic batching equipment, and pump the long fiber pulp and poplar pulp into the mixin...

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Abstract

The invention provides a paper making process of single-side blue engineering raw paper. The process comprises a pulp preparation step; the pulp preparation includes the preparation of long fiber pulpand the preparation of poplar pulp. For the preparation of long fiber pulp, bleached sulfate needle leaf long fiber wood pulp with the fiber length being 2.5 to 2.7mm is used; the pulping concentration is 4.0 to 4.3 percent; the pulping degree is 38 to 40 degrees SR. For the preparation of poplar pulp, the pulping concentration is 4.0 to 4.3 percent; the pulping degree is 36 to 38 degrees SR. Theink absorption rate of the prepared single-side blue engineering raw paper is 42 to 45 percent.

Description

[0001] The present invention is a divisional application with application number 201611098121X, application date December 3, 2016, and invention name "Papermaking Process for Single-sided Blue Engineering Paper". technical field [0002] The invention belongs to the technical field of papermaking, in particular to a papermaking process of single-sided blue engineering paper. Background technique [0003] In the survey and design industry, for a long time, the drawings provided for engineering construction projects and archived by the owners are single-sided blue engineering papers, and the drawings archived by the design units are base maps and blueprints. The main function of the base map is to archive and backup and use the original version; the main function of the blueprint is to provide construction and archive for reference. Everyone is used to this mode of operation. However, blueprints are not easy to store for a long time, and they will turn yellow, fade, and beco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H11/10D21H17/28D21H19/36D21H21/18
CPCD21H11/10D21H17/28D21H19/36D21H21/18
Inventor 汤志久杨振永赵艳玲任怀燕凡菜华李兴政牛玉镇
Owner WEIFANG HENGLIAN SPECIALTY PAPER
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