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Engineering drawing paper and manufacturing method thereof

A drawing paper and engineering technology, applied in papermaking, textile and papermaking, inorganic compound addition, etc., can solve the problems of high consumption of softwood chemical pulp, poor digital printing effect, rough surface of paper, etc., to improve affinity and reduce fiber cutting. , Improve the effect of surface fineness

Inactive Publication Date: 2017-01-11
YUEYANG FOREST & PAPER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the digital printing effect of domestic engineering copy paper is poor, the surface of the paper is rough, and the hand feel is poor. At the same time, there are problems of excessive consumption of coniferous wood chemical pulp and high cost.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Beat bleached kraft softwood chemical pulp to 45 0 SR, bleached kraft hardwood chemical pulp beat to 32 0 SR; prepare mixed pulp according to the ratio of 15:85, add (A) sodium carboxymethyl cellulose to absolute dry pulp dosage: 0.3%; (B) wet strength agent PAE: 0.8%; (C) paper surface sizing and lubrication agent (calcium stearate) dosage of 0.6kg / t paper; (D) in surface sizing, the dosage of organic color fixing agent is 8kg / t paper; CaCl 2 Amount of 15kg / t paper; (E) sizing agent ASA dosage: 0.9kg / t paper; (F) cationic cornstarch in pulp: 10kg / t paper; (G) surface sizing enzyme converted starch 80kg / t paper; ( H) Filler light calcium carbonate 170kg / t paper. The paper material is formed by the wire section, pressed, pre-dried, surface sizing, post-dried, calendered, coiled, and rewinded to obtain the product of the size required by the user.

[0013] Copying online concentration: 0.102%; (B) online pH value: 8.2; (C) online beating degree: 45 0 Sr. The speed of...

Embodiment 2

[0016] Beat bleached kraft softwood chemical pulp to 47 0 SR, bleached kraft hardwood chemical pulp beat to 33 0 SR; Prepare the mixed pulp according to the ratio of 18:82, add (A) sodium carboxymethyl cellulose to absolute dry pulp: 0.5%; (B) wet strength agent PAE: 1.0%; (C) paper surface sizing and lubrication The dosage of agent (calcium stearate) is 0.7kg / t paper; (D) in surface sizing, the dosage of organic color fixing agent is 7.5kg / t paper; the dosage of CaCl2 is 12.5kg / t paper; (E) the dosage of sizing agent ASA : 1.2kg / t paper; (F) cationic corn starch in pulp: 9kg / t paper; (G) surface sizing enzyme converted starch 78kg / t paper; (H) filler light calcium carbonate 175kg / t paper. The paper material is formed by the wire section, pressed, pre-dried, surface sizing, post-dried, calendered, coiled, and rewinded to obtain the product of the size required by the user.

[0017] Copying online concentration: 1.11%; (B) online pH value: 8.4; (C) online beating degree: 45 ...

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PUM

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Abstract

The invention discloses an engineering drawing paper and a manufacturing method thereof. The engineering drawing paper is manufactured by beating separately bleached sulfate needlebush chemical pulp and bleached sulfate broadleaf wood chemical pulp, mixing the pulp and papermaking. The quantity of the engineering drawing paper is 79-81g / m2, ISO brightness is 107-109%, the folding endurance is more than 15 times, the thickness is 104-108 micron, the smoothness degree is longer than 25s, the moisture content is 4.5-5.5%, the water resistance Cobb value is 20-30g / m2, the friction coefficient is less than 0.35, and the longitudinal wet strength is greater than 4N / 15mm. The solid ink problem of the engineering drawing paper at the time of printing is solved, the conflict between the fineness and transferring performance of the engineering drawing paper can be solved, and the problem of high cost is avoided.

Description

technical field [0001] The invention relates to engineering drawing paper and a method for making the same. Background technique [0002] Engineering drawing paper is used for printing paper for engineering drawings, mechanical drawings, topographic maps, etc., and is also suitable for writing with pencils and pens. This product is required to be suitable for inkjet printing (water-based ink), with good ink-fixing effect, fine and smooth paper surface, good printing color reproduction, clear lines, and good paper passing performance, good stiffness, and good dimensional stability ; In addition, the product requires high whiteness and low dustiness, and the paper quality requires excellent folding resistance and a certain wet strength. [0003] At present, the digital printing effect of domestic engineering copy paper is poor, the surface of the paper is rough, and the hand feel is poor. At the same time, there are problems of excessive consumption of coniferous wood chemica...

Claims

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Application Information

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IPC IPC(8): D21H11/06D21H13/02D21H17/28D21H17/29D21H17/66D21H17/67D21H21/14D21H21/16D21H21/20
CPCD21H11/06D21H13/02D21H17/28D21H17/29D21H17/66D21H17/67D21H17/675D21H21/14D21H21/16D21H21/20
Inventor 朱宏伟刘春景
Owner YUEYANG FOREST & PAPER CO LTD
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