A new type of high-speed high-strength paper tube glue and its preparation method

A paper tube adhesive and high-strength technology, applied in adhesive types, non-polymer adhesive additives, unsaturated alcohol copolymer adhesives, etc., can solve the problem that formaldehyde cannot be effectively removed from paper tube adhesives and the glue viscosity is low Instability, product quality is not up to standard and other problems, to achieve the effect of high speed, high product hardness, and improve product quality

Active Publication Date: 2022-04-26
YUEYANG FOREST & PAPER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] ① When the temperature is low in winter, because the glue cannot be completely gathered and melted to form a complete film, it becomes cracked or powdery, so that the produced paper tube will have the phenomenon of "holding the tube", and the waste tube rate of the paper tube High, resulting in low yield;
[0004] ②Due to the high viscosity of this type of paper tube glue, the load of the tube coiler is too high, which leads to the inability to increase the speed of the machine; while some manufacturers produce low-viscosity paper tube glue, which is prone to glue layering due to low viscosity and instability. thereby affecting the use of the product;
[0005] ③The formaldehyde of paper tube glue produced by traditional technology cannot be effectively removed, so that the product quality is not up to standard

Method used

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  • A new type of high-speed high-strength paper tube glue and its preparation method

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Experimental program
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Effect test

Embodiment 1

[0024] A preparation method of a new type of high-speed high-strength paper tube glue, the raw material components of the paper tube glue are: 7% kaolin, 7% polyvinyl alcohol, 0.2% sodium hexametaphosphate, 1.5% formaldehyde, corn starch Solution 0.1%, boric acid+borax aqueous solution 0.5%, defoamer 0.3%, antiseptic bactericide 0.3%, water 83.1%; comprise the following steps:

[0025] Step 1: First add water accounting for 40% of the above remaining water quality into the reaction kettle, then add kaolin, polyvinyl alcohol, and dispersant in the above mass ratio under stirring, continue stirring for 20 minutes, then raise the temperature to 90°C, and keep warm 40min obtains mixed solution;

[0026] Step 2: Add hydrochloric acid to the mixed solution obtained in the above step 1 to adjust the pH value to 2.0, then add the above mass ratio of formaldehyde, react for 40 minutes, observe the reaction situation and add 0.3% ammonia water immediately after the phenomenon of glue se...

Embodiment 2

[0029] A method for preparing a novel high-speed, high-strength paper tube glue. The raw material components of the paper tube glue are: kaolin 9%, polyvinyl alcohol 8%, sodium hexametaphosphate 0.1%, formaldehyde 1%, corn starch Solution 0.3%, boric acid+borax aqueous solution 0.3%, defoamer 0.1%, antiseptic bactericide 0.1%, water 81.1%; comprise the following steps:

[0030] Step 1: First add water accounting for 41% of the above remaining water quality into the reaction kettle, then add kaolin, polyvinyl alcohol, and dispersant in the above mass ratio under stirring, continue stirring for 30 minutes, then raise the temperature to 95°C, and keep warm 60min obtains mixed solution;

[0031] Step 2: Add hydrochloric acid to the mixed solution obtained in the above step 1 to adjust the pH value to 1.8, then add the above mass ratio of formaldehyde, react for 60 minutes, observe the reaction situation and add 0.5% ammonia water immediately after the phenomenon of glue separation...

Embodiment 3

[0034] A method for preparing a novel high-speed and high-strength paper tube glue. The raw material components of the paper tube glue are: 8% kaolin, 9% polyvinyl alcohol, 0.15% sodium hexametaphosphate, 1.2% formaldehyde, corn starch 0.2% solution, 0.4% boric acid+borax aqueous solution, 0.2% defoamer, 0.2% antiseptic and bactericide, and 80.65% water; including the following steps:

[0035] Step 1: First add water accounting for 42% of the above remaining water quality into the reaction kettle, then add kaolin, polyvinyl alcohol, and dispersant in the above mass ratio under stirring, continue stirring for 26 minutes, then raise the temperature to 93°C, and keep warm 50min obtains mixed solution;

[0036] Step 2: Add hydrochloric acid to the mixed solution obtained in the above step 1 to adjust the pH value to 1.9, then add formaldehyde in the above mass ratio, and react for 55 minutes. Observe the reaction situation and add 0.4% ammonia water immediately after the phenomeno...

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Abstract

The invention discloses a novel high-speed high-strength paper tube adhesive and a preparation method thereof. First, water is added into a reaction kettle, kaolin and polyvinyl alcohol are added in a stirring state, and then a dispersant is added, the stirring is continued to raise the temperature, and a mixed solution is obtained by heat preservation; Add hydrochloric acid to adjust the pH value, then add formaldehyde to react, observe the reaction situation until the glue separation phenomenon occurs, immediately add ammonia water to adjust the pH value, then add the cornstarch that has been stirred and dissolved in advance, and turn on the cooling water to cool down after keeping warm to obtain polyvinyl formal glue Add the pre-dissolved boric acid + borax aqueous solution dropwise to the reaction kettle, add water to adjust the solid content after the dropwise addition, continue to cool down, then add dilute hydrochloric acid to adjust the pH value, and finally add defoamer, antiseptic and bactericide and cool to obtain a new high-speed High-strength paper tube glue; the paper tube glue prepared by this method can greatly improve the production efficiency of the tube coiler, improve product quality, reduce the "tube holding" phenomenon that occurs during paper tube production, and completely remove the residual formaldehyde in the glue.

Description

technical field [0001] The invention belongs to the technical field of adhesives, and in particular relates to a novel high-speed, high-strength paper tube adhesive and a preparation method thereof. Background technique [0002] Adhesive for paper tubes, commonly known as paper tube glue, is a special adhesive for making various paper tubes, paper barrels, paper cans and related paper products. All kinds of products have special requirements for paper tube glue depending on other uses. Paper, cloth, plastic film, metal foil and other thin and soft materials are usually wound into bundles with paper tubes (paper tubes) to make paper core rolls. These paper tubes are generally rolled and bonded with raw paper such as kraft paper or sand tube paper, and the adhesive used is called paper tube glue. At present, the paper tube glue mainly used in the market is mostly water-soluble adhesive, mainly composed of polyvinyl alcohol and corn starch, but the paper tube glue prepared by...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J129/04C09J103/02C09J11/04
CPCC09J129/04C09J11/04C08L2201/08C08K2003/387C08K2201/014C08L3/02C08K13/02C08K3/346C08K3/38
Inventor 何辉
Owner YUEYANG FOREST & PAPER CO LTD
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