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Preparation method of animal glue surface sizing agent

A technology of surface sizing agent and preparation process, which is applied in the directions of adding water repellent, textile and papermaking, fiber raw material processing, etc. The process is simple, the internal physical strength performance is improved, and the effect of improving the color of the paper

Inactive Publication Date: 2015-03-18
HAO YU ADDITION AGENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current market, due to the impact of cost, bone glue is mostly used as the main material of animal glue. Compared with bone glue, because skin glue is expensive and the production process is more complicated, it is not conducive to large-scale production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A preparation process of animal glue surface sizing agent, comprising the following steps:

[0016] (1) Expand the raw cowhide in cold water for 2 hours, and then dissolve it in hot water at 200°C;

[0017] (2) Make a 3% concentration of sizing material during stirring, add 15% glycerin, 0.5% zinc sulfate and 0.05% sodium hydrosulfite auxiliary materials by weight of raw cowhide respectively, and stir;

[0018] (3) After the stirring is completed, the temperature is kept at 60°C, and at the same time, 2% sodium stearate and 0.06% sodium chloride by weight of the raw hide are added and stirred;

[0019] (4) After the stirring is completed, 12% of oxidized starch and 0.25% of sodium stearate by weight of raw cowhide are added, and the mixture is stirred and reacted for 0.5 hours and then freeze-dried.

Embodiment 2

[0021] A preparation process of animal glue surface sizing agent, comprising the following steps:

[0022] (1) Expand the raw cowhide in cold water for 3 hours, and then dissolve it in hot water at 400°C;

[0023] (2) Make a sizing compound with a concentration of 8% during stirring, add 24% glycerol, 0.8% zinc sulfate, 0.08% sodium hydrosulfite auxiliary materials by weight of raw cowhide, and stir;

[0024] (3) After the stirring is completed, the temperature is kept at 70 °C, and at the same time, 3% sodium stearate and 0.07% sodium chloride by weight of the raw cowhide are added and stirred;

[0025] (4) After the stirring is completed, 16% of oxidized starch and 0.6% of sodium stearate by weight of raw cowhide are added, and the mixture is stirred and reacted for 1.2 hours and then freeze-dried.

Embodiment 3

[0027] A preparation process of animal glue surface sizing agent, comprising the following steps:

[0028] (1) Expand the raw cowhide in cold water for 5 hours, and then dissolve it in hot water at 600°C;

[0029] (2) Make a 12% concentration sizing material during stirring, add 30% glycerin, 1.5% zinc sulfate, 0.15% sodium hydrosulfite auxiliary materials according to the weight of raw cowhide, and stir;

[0030] (3) After the stirring is completed, keep the temperature at 75°C, and at the same time add 4% sodium stearate and 0.12% sodium chloride by weight of the raw cowhide, and stir;

[0031] (4) After the stirring is completed, 20% of oxidized starch and 1.0% of sodium stearate by weight of raw cowhide are added, and the mixture is stirred and reacted for 2 hours and then freeze-dried.

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PUM

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Abstract

The invention relates to a preparation method of an animal glue surface sizing agent. The preparation method includes following steps: enabling raw cowhide to be expanded in cold water for 2-5 hours and dissolving the raw cowhide in hot water at 200-600 DEG C; processing the dissolved raw cowhide with stirring to prepare a sizing material with a concentration being 3-12%; adding auxiliary materials comprising glycerin accounting for 15-30% by weight of the raw cowhide, zinc sulfate accounting for 0.5-1.5% by weight of the raw cowhide and sodium hydrosulfite accounting for 0.05-0.15% by weight of the raw cowhide with stirring; maintaining the temperature to be 60-75 DEG C after stirring finished and meanwhile adding sodium stearate accounting for 2-4% by weight of the raw cowhide and sodium chloride accounting for 0.06-0.12% by weight of the raw cowhide with stirring; adding oxidized starch accounting for 12-20% by weight of the raw cowhide and the sodium stearate accounting for 0.25-1.0% by weight of the raw cowhide with stirring to perform a reaction for 0.5-2 hours; and performing freeze-drying to obtain the animal glue surface sizing agent. The animal glue surface sizing agent is unique in formula, is simple in a sizing technology process, is low in cost and can significantly enhance surface strength and inherent physical strength performances of finished paper. Meanwhile, by means of addition of the sodium stearate, the finished paper is improved in color, opacity and glossiness degree.

Description

technical field [0001] The invention relates to the technical field of a papermaking auxiliary, in particular to a preparation process of an animal glue surface sizing agent. Background technique [0002] Animal glue is a protein extracted from the bones, skin or tendons of animals. The best skin glue and bone glue are light and transparent, also known as gelatin. In the current market, due to the impact of cost, bone glue is often used as the main material for animal glue. Compared with bone glue, because the price of skin glue is expensive and the production process is more complicated, it is not conducive to large-scale production. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, and to provide a preparation process of an animal glue surface sizing agent with low cost and simple sizing process. [0004] The technical scheme that the present invention realizes the object is: [0005] A preparation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H21/16D21H19/14D21H21/14
Inventor 尹立华
Owner HAO YU ADDITION AGENT
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