Water-based plastic inner printing chalk and preparation method thereof

Abstract

The invention discloses water-based plastic inner printing chalk, which is characterized in that: the chalk is prepared from the following raw materials in part by weight: 35 to 45 parts of alcohol soluble resin, 12 to 20 parts of alcohols solvent, 3 to 8 percent of esters solvent, 1 to 5 parts of water, 0.05 to 0.2 part of amine neutralizer, 0.1 to 0.5 part of flatting powder and 30 to 40 parts of titanium white, wherein the alcohols solvent is a mixture consisting of one or more of ethanol, normal propyl alcohol and isopropyl alcohol; and the esters solvent is a mixture consisting of one or more of ethyl ester, n-propyl and butyl ester. The invention also discloses a method for preparing the water-based plastic inner printing chalk. The water-based plastic inner printing chalk has the characteristics of good printability, difficult blockage and pollution of a printing plate, anti-static property, no damage to a scraper, low viscosity, high solid content, low cost, safety, environment friendliness and the like. The water-based plastic inner printing chalk is mainly suitable for printing composite packages of dry food, such as packages of candies, biscuits, bread, chocolate, ice desserts and the like.

Description

technical field

[0001] The invention relates to a printing ink, in particular to a water-based plastic back printing white ink; the invention also relates to a preparation method of the water-based plastic back printing white ink. Background technique

[0002] At present, BOPP film printing is the most used in gravure printing, and most of the inks used are chlorinated polypropylene type inner printing inks, which use a large amount of benzene and ketones as solvents, and chlorine monomers as resins, which have hidden dangers in hygiene and safety. , At the same time, there are potential hazards of lead, mercury, and cadmium heavy metals. Safety and hygiene are out of control. Organic solvents such as benzene and ketones are volatile, causing a large amount of VOC gas emissions, polluting the environment and destroying air quality. It is not conducive to the health of operating workers. The use of benzene and ketone solvents will result in higher ink costs. At the same ti...

Examples

Embodiment 1

[0033] Example 1. A water-based plastic inner printing white ink, which is made of the following raw materials in weight ratio,

[0034] Alcohol-soluble resin 35;

[0035] Alcohol solvents 12;

[0036] Ester solvent 3;

[0037] Water1;

[0038] Amine neutralizer 0.05;

[0039] Matting powder 0.1;

[0040] Titanium dioxide 30.

[0041] The alcohol solvent is n-propanol; the ester solvent is n-propyl ester. Prepared by conventional methods.

Embodiment 2

[0042] Example 2. A water-based plastic inner printing white ink, which is made of the following raw materials in weight ratio,

[0043] Alcohol-soluble resin 45;

[0044] Alcohol solvent 20;

[0045] Ester solvent 8;

[0046] water 5;

[0047] Amine neutralizer 0.2;

[0048] Matting powder 0.5;

[0049] Titanium dioxide 40.

[0050] The alcohol solvent is isopropanol; the ester solvent is butyl ester.

[0051] Prepared as follows:

[0052] (1) Take the raw materials according to the weight ratio; first mix and disperse evenly the weight percentage of 70% alcohol-soluble resin, 50% alcohol solvent, and all water, amine neutralizer, and matting powder, When dispersing, the speed of the mixer is 300 rpm, and titanium dioxide is added while dispersing until the titanium dioxide is fed; then disperse at a speed of 900 rpm until the material is completely dispersed and evenly distributed;

[0053] (2) Put the uniformly dispersed material into a sand mill and grind until th...

Embodiment 3

[0055] Example 3. A water-based plastic inner printing white ink, which is made of the following raw materials in weight ratio,

[0056] Alcohol-soluble resin 40;

[0057] Alcohol solvent 15;

[0058] Ester solvent 5;

[0059] water 3;

[0060] Amine neutralizer 0.1;

[0061] Matting powder 0.3;

[0062] Titanium dioxide 35.

[0063] The alcohol solvent is ethanol; the ester solvent is selected from ethyl ester.

[0064] Its preparation method is:

[0065] (1) Take the raw materials according to the weight ratio; first, the weight percentage is 80% alcohol-soluble resin, 60% alcohol solvent, and all water, amine neutralizer, matting powder, or add the fluorescence intensifier Whitening agent, mix and disperse evenly. When dispersing, the speed of the mixer is 400 rpm, and add titanium dioxide while dispersing until the titanium dioxide is fed; then disperse at a speed of 1200 rpm until the material is completely dispersed and uniform;

[0066] (2) Put the uniformly disp...

technical field

[0001] The invention relates to a printing ink, in particular to a water-based plastic back printing white ink; the invention also relates to a preparation method of the water-based plastic back printing white ink. Background technique

[0002] At present, BOPP film printing is the most used in gravure printing, and most of the inks used are chlorinated polypropylene type inner printing inks, which use a large amount of benzene and ketones as solvents, and chlorine monomers as resins, which have hidden dangers in hygiene and safety. , At the same time, there are potential hazards of lead, mercury, and cadmium heavy metals. Safety and hygiene are out of control. Organic solvents such as benzene and ketones are volatile, causing a large amount of VOC gas emissions, polluting the environment and destroying air quality. It is not conducive to the health of operating workers. The use of benzene and ketone solvents will result in higher ink costs. At the same ti...

Examples

Embodiment 1

[0033] Example 1. A water-based plastic inner printing white ink, which is made of the following raw materials in weight ratio,

[0034] Alcohol-soluble resin 35;

[0035] Alcohol solvents 12;

[0036] Ester solvent 3;

[0037] Water1;

[0038] Amine neutralizer 0.05;

[0039] Matting powder 0.1;

[0040] Titanium dioxide 30.

[0041] The alcohol solvent is n-propanol; the ester solvent is n-propyl ester. Prepared by conventional methods.

Embodiment 2

[0042] Example 2. A water-based plastic inner printing white ink, which is made of the following raw materials in weight ratio,

[0043] Alcohol-soluble resin 45;

[0044] Alcohol solvent 20;

[0045] Ester solvent 8;

[0046] water 5;

[0047] Amine neutralizer 0.2;

[0048] Matting powder 0.5;

[0049] Titanium dioxide 40.

[0050] The alcohol solvent is isopropanol; the ester solvent is butyl ester.

[0051] Prepared as follows:

[0052] (1) Take the raw materials according to the weight ratio; first mix and disperse evenly the weight percentage of 70% alcohol-soluble resin, 50% alcohol solvent, and all water, amine neutralizer, and matting powder, When dispersing, the speed of the mixer is 300 rpm, and titanium dioxide is added while dispersing until the titanium dioxide is fed; then disperse at a speed of 900 rpm until the material is completely dispersed and evenly distributed;

[0053] (2) Put the uniformly dispersed material into a sand mill and grind until th...

Embodiment 3

[0055] Example 3. A water-based plastic inner printing white ink, which is made of the following raw materials in weight ratio,

[0056] Alcohol-soluble resin 40;

[0057] Alcohol solvent 15;

[0058] Ester solvent 5;

[0059] water 3;

[0060] Amine neutralizer 0.1;

[0061] Matting powder 0.3;

[0062] Titanium dioxide 35.

[0063] The alcohol solvent is ethanol; the ester solvent is selected from ethyl ester.

[0064] Its preparation method is:

[0065] (1) Take the raw materials according to the weight ratio; first, the weight percentage is 80% alcohol-soluble resin, 60% alcohol solvent, and all water, amine neutralizer, matting powder, or add the fluorescence intensifier Whitening agent, mix and disperse evenly. When dispersing, the speed of the mixer is 400 rpm, and add titanium dioxide while dispersing until the titanium dioxide is fed; then disperse at a speed of 1200 rpm until the material is completely dispersed and uniform;

[0066] (2) Put the uniformly disp...