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Preparation method of grinding-resistant aqueous cigarette packet printing ink resin

A technology of ink resin and cigarette pack, applied in the field of ink resin, can solve the problems of poor compatibility, easy demulsification, poor abrasion resistance of water-based resin, etc., and achieves good film-forming performance, low VOC content, and good color development performance. Effect

Inactive Publication Date: 2016-10-26
ANHUI SINOGRACE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, due to the improvement of the tobacco industry standard, the VOC content of the water-based resin is easy to exceed the standard, and the grinding resistance of the water-based resin is poor, and it is easy to break the emulsion. Therefore, the pigment needs to be ground separately, and then mixed with the water-based resin and additives to prepare the water-based ink. The production process of water-based ink is complex
Water-based polyurethane resin and acrylic resin are the main binders of cigarette pack ink. Polyurethane resin has good compatibility with solvents and good temperature resistance, but it is not resistant to grinding. Although acrylic acid has good abrasion resistance, it has poor compatibility with solvents. , easy to demulsify

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The preparation method of the grinding-resistant water-based cigarette pack ink resin comprises the following steps:

[0013] (1) Add 5 mol polycarbonate diol and 5 mol acrylic graft-modified polyester diol into the reaction kettle, dehydrate in vacuum at 100°C for 4 h, then add 10 mol isofor after cooling down to room temperature Add 20 mol of acetone to dissolve ketone diisocyanate (IPDI) and 10 mol of hexamethylene diisocyanate (HDI), raise the temperature to 80°C, add 0.2 mol of potassium persulfate dropwise, and react for 3 hours to obtain a prepolymer;

[0014] (2) Add 2 mol of 1,4-butanediol (BDO) and 1 mol of dimethylolpropionic acid (DA) into the prepolymer, raise the temperature to 60°C, and perform the chain extension reaction for 1.5 h;

[0015] (3) After cooling down to room temperature, add 1 mol of triethylamine under high-speed stirring, stir for 5 minutes, add water and emulsify to obtain a water-based resin for cigarette pack ink that is resistant to g...

Embodiment 2

[0018] The preparation method of the grinding-resistant water-based cigarette pack ink resin comprises the following steps:

[0019] (1) Add 10 mol polycarbonate diol and 5 mol acrylic acid graft-modified polyester diol into the reaction kettle, vacuum dehydrate at 150 °C for 1 h, then add 15 mol isofor after cooling down to room temperature Add 40 mol of acetone to dissolve ketone diisocyanate (IPDI) and 15 mol of hexamethylene diisocyanate (HDI), raise the temperature to 90 ℃, add 0.25 mol of azobisisobutyronitrile dropwise, and react for 1.5 hours to obtain a prepolymer ;

[0020] (2) Add 3 mol 1,2-propanediol and 3 mol dimethylolpropionic acid (DA) into the prepolymer, raise the temperature to 75 °C, and perform chain extension reaction for 1.0 h;

[0021] (3) After cooling down to room temperature, add 3 mol of triethylamine under high-speed stirring, stir for 10 min, add water and emulsify to obtain a water-based cigarette pack ink resin that is resistant to grinding. ...

Embodiment 3

[0024] The preparation method of the grinding-resistant water-based cigarette pack ink resin comprises the following steps:

[0025] (1) Add 5 mol polycarbonate diol and 15 mol acrylic acid grafted modified polyester diol into the reaction kettle, vacuum dehydrate at 120 °C for 3 h, then add 20 mol isofor after cooling down to room temperature Add 35 mol of acetone to dissolve ketone diisocyanate (IPDI) and 5 mol of hexamethylene diisocyanate (HDI), heat up to 85 °C, add 0.2 mol of potassium persulfate dropwise, and react for 2 hours to obtain a prepolymer;

[0026] (2) Add 5 mol of diethylene glycol and 2 mol of dimethylolpropionic acid (DA) into the prepolymer, raise the temperature to 70 °C, and perform the chain extension reaction for 1.2 h;

[0027] (3) After cooling down to room temperature, add 2 mol of triethylamine under high-speed stirring, stir for 5 minutes, add water and emulsify to obtain a grinding-resistant water-based cigarette pack ink resin.

[0028] The VO...

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PUM

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Abstract

The invention discloses a preparation method of grinding-resistant aqueous cigarette packet printing ink resin. The preparation method comprises the following steps: carrying out vacuum dehydration on 5-10 molar parts of polycarbonate polyol and 5-15 molar parts of acrylic acid grafted modified polyester polyol at 100-150 DEG C for 1-4 hours, cooling to the room temperature, adding 10-20 molar parts of isophorone diisocyanate and 5-15 molar parts of hexamethylene diisocyanate, adding acetone to dissolve, heating to 80-90 DEG C, dropwise adding 0.2-0.25 molar part of an initiator, and reacting for 1.5-3 hours, so as to obtain a prepolymer; adding 2-5 molar parts of small-molecule dihydric alcohol and 1-3 molar parts of dimethylolpropionic acid into the prepolymer, heating to 60-75 DEG C, and carrying out chain extension for 1-1.5 hours; and after cooling to the room temperature, adding 1-3 molar parts of triethylamine under a high-speed stirring condition, stirring for 5-10 minutes, and adding water to emulsify the product, so as to obtain the grinding-resistant aqueous cigarette packet printing ink resin. The VOC content of the prepared grind-resistant aqueous cigarette packet printing ink resin is extremely low, and the grinding resistance, the film-forming performance and the color-developing performance in the preparation of printing ink are relatively good.

Description

technical field [0001] The invention belongs to the technical field of ink resins, in particular to a preparation method of grinding-resistant water-based ink resin for cigarette packs. Background technique [0002] At present, the latest national tobacco industry standard "Regarding the Limit Index of VOCS in Cigarette Rod and Packing Paper" stipulates that volatile organic compounds (benzene, toluene, ethylbenzene, xylene, ethanol, isopropanol, n-butanol, acetone, butanone, ethyl acetate, isopropyl acetate, n-propyl acetate, n-butyl acetate, propylene glycol methyl ether, 4-methyl-2-pentanone and cyclohexanone), Sampling, testing and determination rules. Water-based resins are widely used in the formulation of water-based inks as binders for water-based inks due to their advantages such as non-toxicity, no peculiar smell, non-flammability, no pollution to the environment, energy saving, safe transportation, convenient processing, and good film-forming air permeability. S...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/73C08G18/75C08G18/66C08G18/44C08G18/63C08G18/32C08G18/34C08G18/12C09D11/102
CPCC08G18/722C08G18/0823C08G18/12C08G18/3206C08G18/348C08G18/4072C08G18/44C08G18/631C08G18/664C08G18/6659C08G18/73C08G18/755C09D11/102
Inventor 刘都宝刘藏陶杰鲍俊杰赵洪涛
Owner ANHUI SINOGRACE CHEM
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