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A copybook copy paper making process

A papermaking process and copybook technology, which is applied in the field of copybook copy paper and papermaking technology, can solve the problems that strength, air permeability, transparency and uniformity cannot fully meet the needs of the high-end market, and achieve the effect of good uniformity and stability.

Active Publication Date: 2017-06-27
山东恒联桦林新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing products have been at the level of medium and low-grade paper due to many reasons such as outdated equipment, backward technology, and management concepts, and their main indicators such as strength, air permeability, transparency, and uniformity cannot fully meet the needs of the high-end market.

Method used

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  • A copybook copy paper making process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The long-fiber wood pulp and short-fiber wood pulp, with a weight ratio of 70:30, were disintegrated by a hydraulic pulper, and beating enzyme was added, the water temperature was adjusted to 50°C, the reaction time was 30 minutes, and the metering pump was used to add quantitatively, and the dosage was 5kg / tons of paper. Then go through a double-disk refiner for beating. The beating method adopts long-fiber viscous beating, which requires the fiber to be highly divided into filaments, swelling and fibrillation. Try to avoid cutting the fiber to maintain the high strength of the fiber. The method of cutting down the knife and beating for a long time, the paper material after beating has a slippery feeling, it is difficult to dehydrate on the Internet, and the concentration on the Internet is also low. The beating degree is controlled at 65°SR, the beating concentration is controlled at 4.0%, and the wet weight is controlled at 8.5. g, making pulp.

[0020] Transfer to...

Embodiment 2

[0025] The long-fiber wood pulp and short-fiber wood pulp, with a weight ratio of 90:10, were disintegrated by a hydraulic pulper, and beating enzyme was added, the water temperature was adjusted to 40°C, and the reaction time was 35 minutes. The metering pump was used to add quantitatively, and the dosage was 8kg / tons of paper. Then go through a double-disk refiner for beating. The beating method adopts long-fiber viscous beating, which requires the fiber to be highly divided into filaments, swelling and fibrillation. Try to avoid cutting the fiber to maintain the high strength of the fiber. The method of undercutting and beating for a long time, the paper material after beating has a slippery feeling, it is difficult to dehydrate on the Internet, and the concentration on the Internet is also low. The beating degree is controlled at 68°SR, the beating concentration is controlled at 4.2%, and the wet weight is controlled at 9g. , to produce pulp.

[0026] Transfer to the bat...

Embodiment 3

[0031] The long-fiber wood pulp and short-fiber wood pulp, with a weight ratio of 80:20, were disintegrated by a hydraulic pulper, and beating enzyme was added, the water temperature was adjusted to 60°C, the reaction time was 40 minutes, and the metering pump was used to add quantitatively, and the dosage was 12kg / tons of paper. Then go through a double-disk refiner for beating. The beating method adopts long-fiber viscous beating, which requires the fiber to be highly divided into filaments, swelling and fibrillation. Try to avoid cutting the fiber to maintain the high strength of the fiber. The method of cutting down the knife and beating for a long time, the paper material after beating has a slippery feeling, it is difficult to dehydrate on the Internet, and the concentration on the Internet is also low. The beating degree is controlled at 70°SR, the beating concentration is controlled at 4.5%, and the wet weight is controlled at 9.5. g, making pulp.

[0032] Transfer t...

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Abstract

The present invention provides a copybook copying paper making process. The process comprises the following working procedures: wood pulp pulverizing and degradation, beating, proportioning, screening and purifying, charging on a net and forming, squeezing and drying. The process is characterized in that wood pulp comprises long-fiber wood pulp and short-fiber wood pulp, and the weight proportion of the long-fiber wood pulp and the short-fiber wood pulp is 70-90:10-30; in the working procedure of beating, the beating degree is controlled to be 65-70 DEG SR, the beating wet weight is controlled to be 8.5-9.5 g, and the beating concentration is controlled to be 4.0-4.5%; and a wet strength agent is added into the working procedure of proportioning, a dry strength agent is added into the working procedure of beating, and a dispersing agent and a neutral sizing agent are added before the working procedure of charging on the net. Due to the technical scheme, the beating degree, the beating wet weight and the beating concentration are strictly controlled, so that the products, namely paper sheets, have excellent uniformity performance, and stability of various physical indexes of the paper sheets is ensured.

Description

technical field [0001] The present invention relates to a kind of, specifically relate to a kind of copybook copying paper papermaking technology. Background technique [0002] The paper industry is an important basic raw material industry closely related to the development of the national economy and social undertakings. The consumption level of paper and cardboard is a symbol to measure the level of modernization and civilization of a country. Among them, craft paper, as a special paper in the paper industry, also ushers in a historical opportunity for rapid development, especially the copybook copy paper used for students to practice pen copybooks is in great demand in the international and domestic markets, and there is still a lot of room for development. Especially for children who have just entered the campus, they have been exposed to writing for a short time and have not formed their own writing personality. In order to guide children to write beautiful and beautifu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H15/10D21H21/20D21H21/18D21H21/08D21H21/16D21D1/02
CPCD21D1/02D21H15/10D21H21/08D21H21/16D21H21/18D21H21/20
Inventor 刘勇汤志久郭建斌孙俊涛崔英杰
Owner 山东恒联桦林新材料有限公司