A kind of glue improver for kraft paper and white kraft paper and preparation method thereof

A technology of improver and kraft paper, applied in the field of papermaking, can solve problems such as uneven distribution of ink and affecting the appearance of printing

Active Publication Date: 2021-09-14
DONGGUAN NINE DRAGONS PAPER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When using wrapping paper for printing, ink distribution is often uneven, which affects the appearance of printing

Method used

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  • A kind of glue improver for kraft paper and white kraft paper and preparation method thereof
  • A kind of glue improver for kraft paper and white kraft paper and preparation method thereof
  • A kind of glue improver for kraft paper and white kraft paper and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The present embodiment provides a kind of preparation method of the surface glue glue improver that is used for kraft paper and white kraft paper, described method is:

[0053] The 350 parts by weight of water is mixed with 150 parts by weight of light powdered calcium carbonate, stirred at 800 rpm for 50 minutes to form an emulsion; the emulsion is mixed with 50 parts by weight of dispersant at 300 rpm for 20 minutes, and then mixed with 50 parts by weight of One part of the fixing agent was stirred and mixed for 20 min at a rotating speed of 300 rpm to obtain the modifier.

[0054] The solid content of the prepared improver was 35%.

Embodiment 2

[0056] The present embodiment provides a kind of preparation method of the surface glue glue improver that is used for kraft paper and white kraft paper, described method is:

[0057] The water of 320 parts by weight is mixed with 160 parts by weight of light powdered calcium carbonate, and stirred at 900 rpm for 45 minutes to form an emulsion; the emulsion is mixed with 52 parts by weight of dispersant at 350 rpm for 12 minutes, and then mixed with 52 parts by weight of One part of the fixing agent was stirred and mixed for 12 minutes at a rotating speed of 350 rpm to obtain the modifier.

[0058] The solid content of the prepared improver is 40%.

Embodiment 3

[0060] The present embodiment provides a kind of preparation method of the surface glue glue improver that is used for kraft paper and white kraft paper, described method is:

[0061] The 300 parts by weight of water is mixed with 170 parts by weight of light calcium carbonate powder, stirred at 1000 rpm for 40 minutes to form an emulsion; the emulsion is mixed with 55 parts of dispersant at 400 rpm for 15 minutes, and then mixed with 55 parts by weight of One part of the fixing agent was stirred and mixed for 15 min at a rotating speed of 400 rpm to obtain the modifier.

[0062] The solid content of the prepared improver was 45%.

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Abstract

The invention provides a surface rubber glue improver for kraft paper and white kraft paper. The formula of the improver includes the following components in parts by weight: 150-200 parts of dry powder, 50-60 parts of fixative, and 50 parts of dispersant ~60 parts and 250~350 parts of solvent. Add the improver to the surface glue solution, and adjust the formula of the surface glue solution, so that after the paper web is coated and sizing, the front surface layer can achieve the water resistance effect and physical strength, and at the same time, the printing uniformity of the ink can be improved; The special improver formula components can improve the smoothness of the paper surface by filling the rough gaps on the surface of the paper web, the ink distribution is more uniform, and the printing effect is beautiful.

Description

technical field [0001] The invention belongs to the technical field of papermaking, and relates to a surface glue improver and a preparation method thereof, in particular to a surface glue improver for kraft paper and white kraft paper and a preparation method thereof. Background technique [0002] The production process of kraft paper and white kraft paper is: pulping - wire section - press section - drying section - sizing machine - drying section - coiling - rewinding - finished product storage. In the sizing machine section, it is necessary to cook the starch to prepare the surface glue and evenly coat the surface of the paper web, so that the paper web has a certain water resistance and improves the physical strength. Because the sizing material has a certain water resistance after drying, and the fibers on the surface of the paper web are interwoven and distributed, the surface is rough and uneven in the microscopic state. When using wrapping paper for printing, uneve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H21/16
CPCD21H21/16
Inventor 张成飞张益安刘永宋林林刘文军
Owner DONGGUAN NINE DRAGONS PAPER IND
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