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A kind of preparation formula and preparation method for increasing paper coating amount

A technology of coating amount and preparation, applied in paper coating, coating, papermaking, etc., can solve the problems of limitation, affecting paper performance, deviation, etc., and achieve the effects of improving ductile viscosity, increasing coating amount, and increasing longitudinal stress.

Active Publication Date: 2018-04-13
上海洛法化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The increase of the existing coating amount is the bottleneck of the application in the paper industry. It is very limited to increase the coating amount by releasing the pressure of the scraper or the scraper rod, and it can only increase by 1 to 2 grams. deviation, which affects the performance of the paper

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1: polyethylene glycol 10%, pentaerythritol 30%, high polymer acrylamide 25%, fumed silica 3%, dispersant phosphate 10%, carboxymethyl cellulose 13%.

Embodiment 2

[0020] Example 2: polyethylene glycol 15%, pentaerythritol 25%, high polymer acrylamide 30%, fumed silica 5%, dispersant phosphate 10%, carboxymethyl cellulose 10%.

Embodiment 3

[0021] Example 3: polyethylene glycol 20%, pentaerythritol 25%, high polymer acrylamide 25%, fumed silica 3%, dispersant phosphate 15%, carboxymethyl cellulose 15%.

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PUM

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Abstract

The invention discloses a preparation formula for improving paper coating weight. The formula involves, by percentage, 10%-20% of polyethylene glycol, 10%-30% of pentaerythritol, 20%-30% of high polymer acrylamide, 1%-5% of fumed silica, 10%-15% of a dispersant phosphate and 10%-15% of carboxymethyl cellulose. The making method comprises the steps of: 1. mixing and stirring polyethylene glycol with pentaerythritol; 2. adding the dispersant phosphate and performing stirring; 3. adding powder high polymer acrylamide; and 4. adding fumed silica and carboxymethyl cellulose to carry out stirring reaction. Through effective improvement of the extension viscosity of paint, the coating weight boosting preparation provided by the invention shows certain longitudinal stress increase under a condition of high-speed shearing metering, thus increasing the coating weight without affecting the banner structure.

Description

technical field [0001] The invention relates to the technical field of preparation application of paper coating weight, in particular to a preparation formula and a preparation method for increasing paper coating weight. Background technique [0002] Paper coating technology has gradually matured. In the case of a high-speed coating machine (speed greater than 1000 m / min), the paper is measured by a scraper or a scraper in the existing coating metering method, and the coating amount can reach 10-15 grams. Due to the scarcity of wood resources and the rise in the price of wood fibers in recent years, if part of the wood fibers can be replaced by increasing the amount of coating, it will bring performance improvements and substantial cost savings. The introduction of this product can increase the coating amount by 30-60% under the existing conditions, and at the same time has no effect on the operation of the coating machine, greatly reducing the cost of the product. [0003...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H19/40D21H19/62D21H19/46D21H19/64D21H19/52
CPCD21H19/40D21H19/46D21H19/52D21H19/62D21H19/64
Inventor 张平
Owner 上海洛法化工有限公司