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Preparation method for high-adhesivity tipping adhesive

A viscous, high-glue technology, applied in the direction of polymer adhesive additives, non-polymer adhesive additives, monocarboxylic acid ester copolymer adhesives, etc., to achieve smooth and firm pasting, good stickiness, and good flexibility Effect

Inactive Publication Date: 2018-11-09
CHUZHOU GUANGWEI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, none of the existing tipping glues can meet the existing technical requirements, so a high-speed tipping glue with improved adhesive performance is needed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A preparation method for a highly viscous tipping glue, comprising the following steps:

[0024] 1) Preparation of modified VAE: Add 55 parts of VAE to the reaction kettle, and add a pH regulator under stirring to adjust the pH of the emulsion to 7; then raise the temperature of the material to 76°C, and start adding 15 parts of sodium formaldehyde sulfoxylate dropwise And the mixed solution of 5 parts of tert-butyl hydroperoxide and 8 parts of N-methylol acrylamide is added within 60 minutes; after the addition, the reaction temperature is raised to 95°C and kept for 40 minutes to make it fully react; the heat preservation is over Finally, the temperature of the material in the reaction kettle is lowered to below 35°C, the pH of the product is adjusted to 6-7 with sodium bicarbonate and ammonia water, and the material is filtered out;

[0025] 2) Mix 75 parts of modified VAE and 4 parts of polyvinyl alcohol to obtain a mixed material. Take 20% by weight of the mixed ma...

Embodiment 2

[0030] 1) Preparation of modified VAE: Add 58 parts of VAE to the reaction kettle, and add a pH regulator under stirring to adjust the pH of the emulsion to 7-8; then raise the temperature of the material to 78°C, and start adding 17 parts of formaldehyde sulfoxylate dropwise Add the mixed solution of sodium hydrogen, 8 parts of tert-butyl hydroperoxide and 10 parts of N-methylolacrylamide within 60 minutes; after the addition, raise the reaction temperature to 97°C and keep it warm for 50 minutes to make it fully react; After the heat preservation is over, the temperature of the material in the reactor is lowered to below 35°C, the pH of the product is adjusted to 6-7 with sodium bicarbonate and ammonia water, and the material is filtered out;

[0031] 2) Mix 80 parts of modified VAE and 6 parts of polyvinyl alcohol to obtain a mixed material. Take 20% by weight of the mixed material and add 7 parts of water to heat up to 95°C to dissolve it completely. After cooling down, add...

Embodiment 3

[0036] 1) Preparation of modified VAE: add 60 parts of VAE to the reaction kettle, and add a pH regulator under stirring to adjust the pH of the emulsion to 7-8; then raise the temperature of the material to 80°C, and start to drop 20 parts of formaldehyde sulfoxylate Add the mixed solution of sodium hydrogen, 10 parts of tert-butyl hydroperoxide and 12 parts of N-methylolacrylamide within 60 minutes; after the addition, raise the reaction temperature to 100°C and keep it warm for 60 minutes to make it fully react; After the heat preservation is over, the temperature of the material in the reactor is lowered to below 35°C, the pH of the product is adjusted to 6-7 with sodium bicarbonate and ammonia water, and the material is filtered out;

[0037] 2) Mix 85 parts of modified VAE and 8 parts of polyvinyl alcohol to obtain a mixed material. Take 20% by weight of the mixed material and add 10 parts of water to heat up to 100°C to dissolve it completely. After cooling down, add 3 p...

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Abstract

The invention provides a preparation method for a high-adhesivity tipping adhesive. The preparation method comprises the following steps: 1) preparing modified VAE; 2) mixing 75-85 parts of modified VAE with 4-8 parts of polyvinyl alcohol so as to obtain a mixed material, adding 5-10 parts of water into 20% by weight of the mixed material, carrying out heating to 90-100 DEG C to dissolve all the mixed material, adding 1-3 parts of an emulsifier, 1-2 parts of a defoamer, 1-3 parts of a plasticizer, 1-3 parts of a tackifier and 1-2 parts of an initiator, adding 10-20 parts of butyl acrylate BA and 1-3 parts of acrylic acid AA, carrying out stirring while heating, and controlling a temperature is 60-65 DEG C; and 3) adding the rest 80% by weight of the mixed material, adding another 1-2 partsof the initiator at a constant rate within 3-4 h, continuing heat preservation, adjusting the pH value of an emulsion to 5-6 by using a sodium bicarbonate solution, carrying out uniform mixing understirring and then carrying out discharging. According to the invention, through controlling of a formula and a preparation technology, the prepared tipping adhesive has a high forming rate and can realize smooth and firm pasting.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a preparation method of high-adhesive tipping glue. Background technique [0002] Adhesive performance is a very important factor affecting the quality of mouthpiece cigarettes. Due to the high speed of the nozzle, its line speed can reach 5-10 m / s, and the requirements for the performance of the adhesive are also very high. The performance of the adhesive is poor, and the splicing speed cannot be increased, and there will be quality problems such as spout drop, air leakage, and uneven paste. When splicing cigarettes on high-speed splicing cigarette machines, in order to improve the quality of splicing cigarette adhesives so that the cigarettes after splicing do not drop out of the mouth, do not leak air, do not warp, and stick the spouts smoothly, various cigarette glue manufacturers use multiple adhesives. A method for producing high-quality cigarette rubber. But existing ...

Claims

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Application Information

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IPC IPC(8): C09J131/04C09J133/24C09J129/04C09J133/08C09J11/08C09J11/06
Inventor 李勇
Owner CHUZHOU GUANGWEI CHEM
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