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Novel high-speed high-strength paper tube adhesive and preparation method thereof

A paper tube glue, high-speed technology, applied in the direction of adhesive types, non-polymer adhesive additives, adhesive additives, etc., can solve the problem that paper tube glue cannot effectively remove formaldehyde, low viscosity of glue, and product quality. Non-compliance and other problems, to achieve the effect of high speed, high hardness of products, and improved product quality

Active Publication Date: 2020-02-21
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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  • Novel high-speed high-strength paper tube adhesive and preparation method thereof

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Experimental program
Comparison scheme
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 Solution 0.2%, boric acid+borax aqueous solution 0.4%, defoamer 0.2%, antiseptic bactericide 0.2%, water 80.65%; comprise 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 the formaldehyde in the above mass ratio, and react for 55 minutes. Observe the reaction situation and add 0.4% ammonia water immediately after glue separation oc...

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Abstract

The invention provides a novel high-speed high-strength paper tube adhesive and a preparation method thereof. The preparation method comprises the following steps: firstly, adding water into a reaction kettle, adding kaolin and polyvinyl alcohol in a stirring state, then adding a dispersing agent, continuing to stir, and successively carrying out heating and heat preservation to obtain a mixed solution; adding hydrochloric acid to adjust the pH value of the mixed solution, adding formaldehyde for a reaction, observing the reaction condition until a glue separation phenomenon occurs, immediately adding ammonia water to adjust the pH value, adding corn starch which is stirred and dissolved in advance, keeping the temperature, and introducing cooling water for cooling to obtain polyvinyl formal glue; and dropwise adding a boric acid-borax aqueous solution which is dissolved in advance into the reaction kettle, adding water to adjust a solid content after dropwise adding is finished, continuing to perform cooling, adding diluted hydrochloric acid to adjust the pH value, finally adding a defoaming agent and an antiseptic bactericide, and carrying out cooling to obtain the novel high-speed high-strength paper tube adhesive. The paper tube adhesive prepared by the method can greatly improve the production efficiency of a tube coiling machine, enhances product quality, reduces the phenomenon of tube embracing during paper tube production and completely removes residual formaldehyde in an adhesive solution.

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 Applications(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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