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Water-based flexographic printing ink for cigarette tipping paper printing and preparation method thereof

A tipping paper, water-based technology, applied in the fields of polymer chemistry and fine chemical industry, can solve the problems of paper shrinkage deformation, tensile strength decline, paper brittleness, etc., to avoid curling deformation, improve moisture retention, and good water resistance. Effect

Active Publication Date: 2017-07-07
JIANGSU TANGCAI PRINTING INK SCI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are still many problems with water-based flexographic inks for tipping paper printing: the speed of flexographic printing machines can reach 200-300m / min, compared with the normal speed of about 100-150m / min for gravure printing machines, it is greatly improving production. At the same time, there are higher requirements for ink transfer, fineness, drying, and curling. The existing water-based flexographic ink technology is widely used in the printing of non-shrinkable substrates such as food packaging bags, aluminum foil, and films. For Thin paper, large pores, and fast-absorbing tipping paper, the paper is prone to shrinkage and deformation during printing, the tensile strength decreases, and the paper becomes brittle, resulting in inaccurate overprinting during printing and affecting subsequent processing

Method used

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  • Water-based flexographic printing ink for cigarette tipping paper printing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] 1. Preparation of Modified Acrylic Emulsion

[0053]Add 180g of deionized water to the reaction kettle, raise the temperature to 50°C, add 0.2g of polycaprolactone to dissolve it completely, add 10g of methyl methacrylate, 3g of methacrylic acid, 20g of butyl acrylate and 0.1g Octamethylcyclotetrasiloxane, stir for 20min, stirring speed 300r / min, and adjust the pH value to 7 with 15% sodium carbonate aqueous solution, then raise the temperature to 75°C, add 0.2g ammonium persulfate solution at 60°C, and react for 1h Then start to drop 1g of emulsifier sodium alkylphenylene polyether sulfonate. Continue to react for 0.5h after dropping to complete the reaction of the remaining monomers. During the whole reaction process, use sodium carbonate aqueous solution to control the pH value of the emulsion to keep it at 7 to obtain a modified acrylic acid emulsion.

[0054] The resulting emulsion is milky white and translucent, with a solid content of 40.0% and a viscosity of 15...

Embodiment 2

[0060] 1. Preparation of Modified Acrylic Emulsion

[0061] Add 230g of deionized water into the reaction kettle, raise the temperature to 60°C, add 1g of polycaprolactone to dissolve it completely, add 18g of methyl methacrylate, 4g of methacrylic acid, 40g of butyl acrylate and 0.2g of octane Methylcyclotetrasiloxane, stir for 30min, stirring speed 300r / min, and adjust the pH value to 7 with 15% sodium carbonate aqueous solution, then raise the temperature to 85°C, add 1g of ammonium persulfate solution at 65°C, and start the reaction after 1h Add 3 g of emulsifier sodium alkylphenylene polyether sulfonate dropwise. Continue to react for 1 hour after dropping to complete the reaction of the remaining monomers. During the whole reaction process, use sodium carbonate aqueous solution to control the pH value of the emulsion to keep it at 7 to obtain a modified acrylic acid emulsion.

[0062] The resulting emulsion is milky white and translucent, with a solid content of 42.2% a...

Embodiment 3

[0068] 1. Preparation of Modified Acrylic Emulsion

[0069] Add 285g of deionized water to the reaction kettle, raise the temperature to 70°C, add 2g of polycaprolactone to dissolve it completely, add 25g of methyl methacrylate, 5g of methacrylic acid, 55g of butyl acrylate and 0.3g of octane Methylcyclotetrasiloxane, stir for 30min, stirring speed 300-400r / min, and adjust the pH value to 8 with 15% sodium carbonate aqueous solution, then raise the temperature to 95°C, add 2g of ammonium persulfate solution at 70°C, and react for 1h Then start to drop 5g emulsifier sodium alkylphenylene polyether sulfonate. Continue to react for 1 hour after dropping to complete the reaction of the remaining monomers. During the whole reaction process, use sodium carbonate aqueous solution to control the pH value of the emulsion to keep it at 8 to obtain a modified acrylic acid emulsion.

[0070] The resulting emulsion is milky white and translucent, with a solid content of 45.0% and a viscos...

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Abstract

The invention discloses a water-based flexographic printing ink for cigarette tipping paper printing and a preparation method thereof. The water-based flexographic printing ink is composed of a modified acrylic emulsion, pigment and filler, a wetting dispersant, a transfer printing agent, a defoaming agent, deionized water, and a cosolvent. The modified acrylic emulsion is a novel acrylic emulsion formed by copolymerization of an imported high quality emulsifier, acrylate and special functional monomers, and has the advantages of fantastic calcium ion stability, dilution stability, mechanical stability and freeze-thaw stability, and small pollution to the environment. The water-based flexographic printing ink for tipping paper printing provided by the invention is non-toxic and tasteless, has quick drying speed and good dispersion stability, the printing product is free of deformation and edge curling, and has bright color and excellent antibacterial properties. The printing product has few residual monomer and low odor, is green and environment-friendly, the printing ink can be used cooperatively with a flexographic press, the printing speed can reach 250-300m / min, and the machine speed is doubled than the traditional intagliotipping paper printing press, thus greatly improving the production efficiency, and saving the production cost.

Description

technical field [0001] The invention belongs to the technical field of macromolecular chemistry and fine chemical industry, and in particular relates to a water-based flexographic ink used for printing cigarette water pine paper and a preparation method thereof. Background technique [0002] Tipping paper is "tipping paper for cigarettes", which is a special paper for connecting cigarettes and filters. The printing of tipping paper is mainly gravure printing. At present, most of the tipping paper printing factories use alcohol-soluble and ester-soluble inks to print tipping paper. The large amount of volatile organic solvents involved in the printing process and the solvent residue in the printed matter will give environment and people's physical and mental health. With the increasing calls for environmental protection, environmentally friendly water-based inks for tipping paper printing have become the direction of industry development. [0003] Chinese patent ZL 2016 1 0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/107C09D11/03C08F220/18C08F220/14C08F220/06C08F2/26
CPCC08F2/26C08F220/18C08F220/1804C09D11/03C09D11/107C08F220/14C08F220/06
Inventor 孟召杰余佩玉范道侠
Owner JIANGSU TANGCAI PRINTING INK SCI TECH CO LTD
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