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Production method for papermaking cooking reagent

A production method and cooking technology, applied in papermaking, textile and papermaking, pulping with inorganic alkali, etc., can solve the problems of paper wrinkle and environmental pollution, and achieve the effects of soft pulp, accelerated wetting, and simple process

Inactive Publication Date: 2014-05-07
NANJING XIRUISI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the effect is very good, these current cooking agents contain substances that are polluting to the environment, and make the final paper crumpled.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1: a kind of production method of cooking agent for papermaking, the method comprises the steps:

[0014] 1) First, weigh each raw material for later use. Each raw material includes the following components in parts by weight: 20 parts of methacrylic acid, 5 parts of dioctadecyldimethyl ammonium chloride, 2 parts of emulsifier, 1 part of sodium hexametaphosphate 1 part, 1 part of hydroxymethyl cellulose, 0.5 part of defoamer, 3 parts of citric acid, 5 parts of sodium citrate, 0.1 part of light stabilizer, 0.2 part of penetrant;

[0015] 2) Heat 60 parts of deionized water to boiling, then add methacrylic acid, hydroxymethyl cellulose, sodium citrate, stir well, keep warm at 65-70°C for 15 minutes, then add citric acid to adjust the pH value at 5 Between -7;

[0016] 3) After adding dioctadecyldimethylammonium chloride, emulsifier, and sodium hexametaphosphate, shear and disperse for 30 minutes. After cooling, add light stabilizer, defoamer, and penetrant, an...

Embodiment 2

[0018] Embodiment 2: a kind of production method of cooking agent for papermaking, the method comprises the steps:

[0019] 1) First, weigh each raw material for later use. Each raw material includes the following components in parts by weight: 28 parts of methacrylic acid, 9 parts of dioctadecyldimethyl ammonium chloride, 5 parts of emulsifier, 3 parts of sodium hexametaphosphate 2 parts, 2 parts of hydroxymethyl cellulose, 3 parts of defoamer, 6 parts of citric acid, 8 parts of sodium citrate, 0.5 part of light stabilizer, 0.5 part of penetrant;

[0020] 2) Heat 70 parts of deionized water to boiling, then add methacrylic acid, hydroxymethyl cellulose, sodium citrate, stir well, keep warm at 65-70°C for 20 minutes, then add citric acid to adjust the pH value at 5 Between -7;

[0021] 3) After adding dioctadecyldimethylammonium chloride, emulsifier, and sodium hexametaphosphate, shear and disperse for 50 minutes. After cooling, add light stabilizer, defoamer, and penetrant, ...

Embodiment 3

[0023] Embodiment 3: a kind of production method of cooking agent for papermaking, the method comprises the steps:

[0024] 1) First, weigh each raw material for later use. Each raw material includes the following components in parts by weight: 25 parts of methacrylic acid, 7 parts of dioctadecyldimethyl ammonium chloride, 4 parts of emulsifier, 2 parts of sodium hexametaphosphate 1 part, 1 part of hydroxymethyl cellulose, 1.5 parts of defoamer, 5 parts of citric acid, 7 parts of sodium citrate, 0.3 part of light stabilizer, 0.4 part of penetrant;

[0025] 2) Heat 65 parts of deionized water to boiling, then add methacrylic acid, hydroxymethyl cellulose, sodium citrate, stir well, keep warm at 65-70°C for 18 minutes, then add citric acid to adjust the pH value at 5 Between -7;

[0026] 3) After adding dioctadecyldimethylammonium chloride, emulsifier, and sodium hexametaphosphate, shear and disperse for 40 minutes. After cooling, add light stabilizer, defoamer, and penetrant, ...

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PUM

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Abstract

The invention discloses a production method for a papermaking cooking reagent. The method includes: firstly weighing all raw materials for standby use; heating deionized water to boiling, then adding methacrylic acid, hydroxymethyl cellulose and sodium citrate, stirring the materials uniformly, conducting heat preservation at 65-70DEG C, then adding citric acid to adjust the pH value to 5-7; adding dioctadecyl dimethyl ammonium chloride, an emulsifier and sodium hexametaphosphate, then conducting shearing dispersion, performing cooling, then adding a light stabilizer, a defoaming agent and a penetrating agent, and stirring the materials evenly to obtain the papermaking cooking reagent. The method provided by the invention has the advantages of simple process and convenient manufacturing. The cooking reagent prepared by the method can speed up the soaking and permeation effects of a cooking liquor on raw materials, can reduce the alkali consumption, and improve and protect the fiber strength. The decocted slurry is soft and loose, and has good elasticity. And the finally prepared paper can be prevented from wrinkling.

Description

technical field [0001] The invention relates to a production method of cooking agent for papermaking. Background technique [0002] Papermaking cooking agent is a chemical that can assist cooking agent to improve cooking efficiency in the process of pulp making. There are mainly anthraquinone, dihydrodihydroxyanthracene disodium salt, quinone, etc. Adding anthraquinone and dihydrodihydroxyanthracene disodium salt can be added in alkaline method and acid method, especially in alkaline method pulping. It can accelerate the delignification speed, shorten the cooking time, fast pulping speed, low energy consumption, small amount of alkali and bleaching chemicals, high fiber yield, and reduce waste liquid load. Its addition amount is preferably 0.02% to 0.05%. [0003] Although effective, these current cooking agents contain substances that are polluting to the environment and wrinkle the final paper. Contents of the invention [0004] Purpose of the invention: in order to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21C3/02D21C3/22
Inventor 涂秀芹
Owner NANJING XIRUISI CHEM
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