Low-viscosity high-speed cigarette adhesive and preparation method thereof

A low-viscosity, cigarette adhesive technology, applied in the direction of adhesives, adhesive types, grafted polymer adhesives, etc., can solve the problem of unsuitable high-speed applications, low product bonding efficiency, lap adhesive viscosity and stickiness The connection speed cannot meet the corresponding requirements and other problems, so as to ensure the storage stability, reduce the probability of generation, and increase the particle size.

Active Publication Date: 2020-03-10
CHINA PETROLEUM & CHEM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the emulsion stabilization system has not been adjusted in ordinary repolymerization methods, it is difficult to reduce the viscosity to below 300mPa.s while maintaining a relatively high solid content of the emulsion. At the same time, the bonding efficiency of the product is not high, and it is not suitable for high-speed applications.
At present, more and more cigarette factories in my country are beginning to use high-speed cigarette machines with a machine speed of 14,000-16,000 pieces / min. The matching glue requires a viscosity below 200mPa.s, and the bonding speed meets the production needs of 14,000-16,000 pieces / min. , so the viscosity and bonding speed of lap glue produced by ordinary repolymerization methods cannot meet the corresponding requirements

Method used

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  • Low-viscosity high-speed cigarette adhesive and preparation method thereof
  • Low-viscosity high-speed cigarette adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Add 800 g of VAE emulsion CW JZ-II emulsion (Sinopec Chongqing Chuanwei Chemical Co., Ltd.) into the reactor, start the stirrer, then add 92.0 g of water, 3.0 g of sodium bicarbonate and 5.0 g of 27.5% hydrogen peroxide to complete Then start to heat up; when the temperature of the material in the reactor rises to 80±2°C, keep the temperature at 80±2°C for 30 minutes; then add the mixture of 80.0g vinyl acetate monomer and 10.0g ethylene glycol at a constant speed of 0.75g / min, The feeding time was 120 min. When vinyl acetate monomer and ethylene glycol mixture start to feed, add the potassium persulfate solution (concentration is 10%) that total amount is 13.0g with the speed of 0.1g / min, the feeding time is 130min, and the feeding process keeps reaction temperature at 80±2°C; After the potassium persulfate solution is added, the reaction temperature rises to 85-90°C, and then quickly add a total of 16.0g of sodium metabisulfite solution (concentration: 6%); after 30 m...

Embodiment 2

[0031] 800.0 g of VAE emulsion CW JZ-II emulsion (Sinopec Chongqing Chuanwei Chemical Co., Ltd.) was added to the reactor, the stirrer was started, and then 100.0 g of water, 3.0 g of sodium bicarbonate and 1.0 g of 27.5% hydrogen peroxide were added, After the completion, start to heat up; when the temperature of the material in the reactor rises to 80±2°C, keep the temperature at 80±2°C for 30 minutes; then add the mixture of 80.0g vinyl acetate monomer and 10.0g ethylene glycol at a constant speed of 0.75g / min , The feeding time is 120min. When vinyl acetate monomer and ethylene glycol mixture start to feed, add the potassium persulfate solution (concentration is 10%) that total amount is 13.0g with the speed of 0.1g / min, the feeding time is 130min, and the feeding process keeps reaction temperature at 80±2°C; After the potassium persulfate solution is added, the reaction temperature rises to 85-90°C, and then quickly add a total of 18.0g of sodium metabisulfite solution (c...

Embodiment 3

[0036] VAE emulsion CW 40-707 emulsion 700.0g (Sinopec Chongqing Chuanwei Chemical Co., Ltd.) is added to the reactor, the stirrer is started, and then 120.0g of water, 3.0g of sodium bicarbonate and concentration of 27.5% hydrogen peroxide 6.0g are added, After the completion, start to heat up; when the temperature of the material in the reactor rises to 80±2°C, keep the temperature at 80±2°C for 30 minutes; then add the mixture of 120.0g vinyl acetate monomer and 10.0g glycerol at a constant speed of 1.1g / min , The feeding time is 120min. When vinyl acetate monomer and glycerol mixture began to feed, add the potassium persulfate solution (concentration is 10%) that total amount is 16.0g with the rate of 0.12g / min, the feeding time is 130min, and the feeding process keeps reaction temperature at 80±2°C; after the addition of potassium persulfate solution, the reaction temperature rose to 85-90°C, and then quickly added a total of 18.0g of sodium erythorbate solution (concentr...

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Abstract

The invention provides a low-viscosity high-speed cigarette adhesive prepared from seed emulsion, a vinyl acetate monomer, an oxidant, an initiator, a capturing agent, an alcohol compound, a pH regulator and water, wherein the seed emulsion is one or combination of more of vinyl acetate-ethylene emulsion, vinyl acetate-acrylate emulsion, a vinyl acetate homopolymerized emulsion, the seed emulsionhaving solid content of 40.0-65.0% and viscosity of 500-5000 mPa*s. In the invention, firstly, the protective colloid in the emulsion is broken to reduce the viscosity, and then the stable emulsion system is reconstructed through polymerization, and the generation quantity of new emulsion particles is controlled, thus producing the emulsion. The viscosity of the emulsion can be lowered to 200 mPa*s, which not only satisfies the cigarette lap adhesion at the machine speed of 14,000-16,000 / min but also can be used for adhesion of common materials, such as paper processing, coating decoration, nonwoven clothes, carpets, etc. The adhesive is simple in preparation method and is suitable for industrial production.

Description

technical field [0001] The invention relates to a high-speed cigarette glue, in particular to a low-viscosity high-speed cigarette glue and a preparation method thereof. Background technique [0002] During the cigarette production process, the shredded tobacco needs to be tightly wrapped with cigarette paper, and the edges on both sides of the cigarette paper need to be butted to finally form a cylindrical shape. The glue for butt bonding is called cigarette glue. According to the application, the cigarette rubber can be divided into the glue used in the filter forming process (including tip stick and tip tow glue), the glue used in the coiling process (including mouth glue, lap glue) and packaging glue. According to the speed of the applicable cigarette machine, it is divided into low-speed glue, medium-speed glue (8000 sticks / minute) and high-speed glue (>8000 sticks / minute). Lap glue is glue used for bonding paper wrapping shredded tobacco in the production process o...

Claims

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Application Information

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IPC IPC(8): C09J151/00C08F263/04C08F218/08
CPCC08F263/04C09J151/003C08F218/08
Inventor 曹勇叶勇刘斌邱萱戴祖贵
Owner CHINA PETROLEUM & CHEM CORP
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