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Lacquer wax sizing agent and preparation method thereof

A technology of sizing agent and lacquer wax, which is applied in the direction of wax addition and water repellent addition, can solve the problems of poor antibacterial property, poor barrier and water resistance, low toxicity, etc., to improve smoothness and strength indicators, Good barrier and water resistance effect

Inactive Publication Date: 2014-06-04
云南省轻工业科学研究院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] (1) Low toxicity is not suitable for food packaging;
[0008] (2) Poor barrier and water resistance;
[0009] (3) The sizing agent contains some chemicals, which will cause secondary pollution;
[0010] (4) Poor antibacterial properties

Method used

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  • Lacquer wax sizing agent and preparation method thereof
  • Lacquer wax sizing agent and preparation method thereof
  • Lacquer wax sizing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The composition and weight percentage of the lacquer wax sizing agent are: 5% lacquer wax, 5% starch, 1% reinforcing agent (0.5% hydroxyethyl cellulose, 0.5% hemicellulose), 0.2% chitosan, 0.01% acetic acid %, the remainder is water.

[0030] The preparation method of the present embodiment paint wax sizing agent is as follows:

[0031] (1) Add 250g of water to 50g of lacquer wax, stir at 85°C and 100r / min for 30min to emulsify, and emulsify for later use;

[0032] (2) Add 250g of water to 50g of starch, stir at 85°C and 100r / min for 30min to boil the gelatin, and set aside after boiling the gelatin;

[0033] (3) Add 60g of water to 10g of enhancer (5g of hydroxyethyl cellulose, 5g of hemicellulose) to dissolve, set aside;

[0034] (4) After preparing 0.1g of acetic acid with water to make a solution with a mass percentage concentration of 1%, it is used to dissolve 2g of chitosan, mix the chitosan solution with the solution of step (3) and stir evenly, then add it to...

Embodiment 2

[0039] The composition and mass percentage of this lacquer wax sizing agent are: lacquer wax 1%, modified starch 3%, reinforcing agent (0.2% carboxymethyl cellulose, acetylated hemicellulose 0.4%) 0.6%, chitosan 0.4%, hydrochloric acid 0.02%, and the rest is water.

[0040] (1) Add 40g of water to 10g of lacquer wax, stir at 95°C and 30r / min for 200min to emulsify, and emulsify for later use;

[0041] (2) Add 240g of water to 30g of modified starch, stir at 65°C and 80r / min for 60min to boil the glue, and set aside after boiling the glue;

[0042] (3) Add 60g of water to 6g of enhancer (2g of carboxymethyl cellulose, 4g of acetylated hemicellulose) to dissolve and set aside;

[0043] (4) After preparing 0.2g of hydrochloric acid with water into a solution with a concentration of 3% by mass, it is used to dissolve 4g of chitosan, and the chitosan solution and the solution of step (3) are mixed and stirred evenly, then added to the mixing tank, and finally Add the solutions in...

Embodiment 3

[0048] The composition and mass percentage of the lacquer wax sizing agent are: 3% lacquer wax, 0.5% modified starch, 0.8% hemicellulose as a reinforcing agent, 0.5% chitosan, 0.015% citric acid, and the rest is water.

[0049] (1) Add 135g of water to 30g of lacquer wax, stir at 55°C and 300r / min for 100min to emulsify, and emulsify for later use;

[0050] (2) Add 50g of water to 5g of modified starch, stir at 55°C and 40r / min for 80min to boil the gelatin, and set aside after boiling the gelatin;

[0051] (3) Add 40g of water to 8g of enhancer hemicellulose to dissolve, set aside;

[0052] (4) After preparing 0.15g of citric acid with water into a solution with a mass percent concentration of 5%, it is used to dissolve 5g of chitosan, and the chitosan solution and the solution of step (3) are mixed and stirred evenly, and then added to the mixing tank. Finally, add the solutions in step (1) and step (2) into the mixing tank, make up the total amount of water, and stir evenl...

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Abstract

The invention discloses a lacquer wax sizing agent and a preparation method of the lacquer wax sizing agent. The lacquer wax sizing agent belongs to the field of sizing agents in papermaking. The lacquer wax sizing agent is produced by taking lacquer wax extracted from lacquer tree seeds, starch / modified starch, an enhancer, chitosan, acetic acid, citric acid or hydrochloric acid as raw materials and taking an emulsifying tank, a rosin cooking tank and a mixing and stirring tank as production equipment; the production method is simple in process, nontoxic, free of chemical pollution and mild in reaction condition, and the lacquer wax sizing agent is high in quality, good in service effect and purely natural in raw materials and can be used as an internal sizing agent or a surface sizing agent; by using the lacquer wax sizing agent, performances such as the water resistance, oil resistance, printing ink resistance and the like of a paper product can be effectively improved, and meanwhile, the smoothness, stiffness, barrier property, antibacterial property and printability of paper can be improved.

Description

technical field [0001] The invention relates to the field of plant resource processing, in particular to a paint wax sizing agent and a preparation method thereof. Background technique [0002] Sizing agent is an additive for papermaking, which can endow paper and paperboard with properties such as antibacterial, anti-oil, antistatic, anti-ink, anti-water, anti-emulsion, anti-corrosion, etc., so as to improve the bursting resistance, smoothness, strength and Application period. According to different sizing methods, sizing agents can be divided into internal sizing agents and surface sizing agents. In-pulp sizing agent, also known as in-pulp sizing, refers to the chemicals added to process pulp, paper, and cardboard to obtain the performance of anti-fluid penetration. These chemicals have hydrophilic groups and hydrophobic groups on the fiber surface to orient the outside as hydrophobic groups, making the paper hydrophobic and fluid-resistant. Except for blotting paper, f...

Claims

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Application Information

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IPC IPC(8): D21H21/16D21H17/60
Inventor 高正卿王忠良周力平和智明陈勇杨嘉科
Owner 云南省轻工业科学研究院有限公司
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