CN101271292A - Anti-counterfeit durable colorful ink powder and method for producing the same - Google Patents

Abstract

The invention discloses an anti-counterfeit color ink powder and a preparation method thereof and concretely provides the anti-counterfeit color ink powder used for a color duplicating machine, a color printer, a color electrograph, a color digital integral machine and a color printing machine and the preparation method thereof. The anti-counterfeit color ink powder is made from the raw materials of latex polymerized macromolecular resin, colored pigment, electric charge regulator, phosphor powder, wax, external additive etc. The latex polymerized macromolecular resin, the colored pigment, the electric charge regulator, the phosphor powder and the wax are put together to be mixed uniformly and made into a mixed solution, and then a spray drier is used for spraying and drying the mixed solution into granular material under the temperature between 160 DEG C and 300 DEG C. Then the granular material is processed for a grading filtering by an air current grading device, and the external additive is added to be mixed uniformly to be made into the anti-counterfeit color ink powder. The color ink powder not only has the low production cost but also can not cause the environmental pollution.

Description

Anti-counterfeit durable colorful ink powder and preparation method thereof

Technical field

The present invention relates to color toner and preparation method thereof.Be color toner and preparation method thereof such as color copy machine, color printer, colour facsimile apparatus, colored digital all-in-one and chromatic printing machine specifically.

Background technology

At present, the color toner that uses on color copy machine, color printer, colour facsimile apparatus and the chromatic printing machine polymeric toner of chemosynthesis normally.This chemical polymerization ink powder is mainly made by other auxiliary material such as emulsion, pigment and crosslinking chemical.Its preparation method is that elder generation puts other auxiliary materials such as emulsion, pigment and crosslinking chemical together, through evenly stirring, makes granular material.Then, add acid and washing agent and granular material is cleaned the buoyant on the flush away granular material.Afterwards, the granular material through cleaning is carried out dried.At last, in the granular material that drying was handled, add auxiliary materials such as silicon dioxide, and evenly mix and make.Because this color toner needs to clean with a large amount of clear water in process of production, and one ton of product of every production just needs 50～100 tons of clear water, not only water resource waste is serious, production cost is higher, and the discharge of wastewater after cleaning comes out, and can pollute environment.

In addition, present material of picture and text has also proposed requirement to anti-counterfeiting technology, and the specimen page that common ink powder is printed does not have singularity, often is difficult to screen the true and false, and the specimen page that prints with this ink powder has the anti-counterfeiting technology parameter, and can satisfy has the ink powder of the false proof requirement market demand.

Summary of the invention

The problem to be solved in the present invention provides a kind of color toner, this color toner, and not only production cost is lower, and can not pollute environment.

Another problem that the present invention will solve provides the preparation method of above-mentioned color toner, and this method technology is simple, not only can avoid water resource waste, reduced production cost.

The 3rd problem that the present invention solves provides the color toner with false proof parameter, can screen the true and false of printing specimen page.

For addressing the above problem, take following technical scheme:

Color toner characteristics of the present invention are the raw materials that contain following weight portion:

70～96 parts of emulsion polymerization macromolecule resins;

0.5～10 part of colored pigment;

Fluorescent powder 8-20 part

Charge adjusting agent 0-9 part

1～5 part in wax;

External additive: 1-15 part

Wherein: said emulsion polymerization macromolecule resin claims latex (emulsion) resin again; Said fluorescent powder is meant ultraviolet fluorescence powder or Infrared fluorescence powder (comprising red, blue, green three specific character Infrared fluorescence powder); Said charge adjusting agent is meant salicylic acid metal complex or azo metal complex; Wax is any one in polypropylene wax, Tissuemat E or the paraffin; External additive is meant: any mixing of any among silicon dioxide, hexamethyldisilazane, the dimethyldichlorosilane three, two kinds or three kinds; Colored pigment is selected redness, black, yellow or blue pigment respectively for use;

The preparation method of color toner of the present invention contains following steps:

Earlier emulsion polymerization macromolecule resin, colored pigment, charge adjusting agent, fluorescent powder and the wax of above-mentioned weight portion are put together, stir, make mixed solution;

Under 160～300 ℃ temperature, above-mentioned mixed solution spraying is dried to granular material with spray dryer again;

Afterwards, above-mentioned granular material is used the screening of air current classifying equipment, remove particle diameter greater than 13 microns, less than 1 micron particle;

At last, will drop in the mixer, and add the external additive of above-mentioned weight portion,, make color toner through evenly mixing through garbled granular material.

Described colored pigment is selected redness, black, yellow or blue pigment respectively for use;

Above scheme of the present invention has the following advantages compared to existing technology:

Because color toner of the present invention contains raw materials such as emulsion polymerization macromolecule resin, colored pigment, charge adjusting agent, fluorescent powder, wax, external additive, and adopt spray drying process to make, need not clean in the production run, not only can avoid water resource waste, reduced production cost, and the pollution that does not have waste water to discharge, avoided waste water that environment is brought.

Color toner of the present invention in addition contains fluorescent powder, and wherein ultraviolet fluorescence powder has special false proof parameter under the irradiation of UV-lamp, and the application of ultraviolet source is very extensive, has common security feature so have the color toner of ultraviolet fluorescence powder; In addition, used the Infrared fluorescence powder of three specific characters during ink powder is formed, in the infrared light sources irradiation, the ink powder of different qualities can embody different security features, can be used as the antiforging ink powder that the specific demand user uses.

So the specimen page that uses ink powder of the present invention to print can be screened the true and false under the irradiation of uviol lamp, infrared lamp.

1, the ink powder that is to use airslide disintegrating mill tool method to make substantially both at home and abroad.Advantage: technology is mature on the whole.Shortcoming: granularity is irregular, power consumption is big, recovery rate is low, cost is high.

2, the world has factory of 1-2 family chemical method to produce ink powder.Advantage: the quality height, the powder degree is even, image is obviously clear.Shortcoming: investment is big, water consumption is big, cost of water treatment is high.

3, among the present invention with latex (emulsion) resin compound spray drying polymeric toner.Advantage: energy-saving and environmental protection, epigranular, recovery rate height.

Technology of the present invention belongs to the technology of the synthetic ink powder of spray drying process, but has avoided the technique waste water that the product washing produces in the chemical method in process of production, has accomplished wastewater zero discharge.

In technological process of the present invention, use suspension latex (emulsion) resin and ultrafine solids raw material.Wherein, latex (emulsion) resin suspending liquid particle diameter is below 5 μ m, its particle diameter of solid material is below 5 μ m, these suspension liquid raw material and solid material, mix according to a certain percentage, solid material is distributed in suspension latex (emulsion) resin equably, form content new suspension system uniformly, in spray-drying process, suspension material liquid forms little liquid grain after atomizing, surface area increases greatly, in hot-air flow, but the water flash evapn of 97～99.7% in the material, the resin in several seconds inner suspension material with solid material melting be in the same place, and form the particle of 2～30 μ m, semi-manufacture after spray-dried become the qualified product of particle diameter through air current classifying.

Do not need coloured magnetic among the present invention in the raw material, two kinds of raw materials of aqueous dispersion.Wherein ultraviolet fluorescence powder, Infrared fluorescence powder can show property under the irradiation of ultraviolet light source or infrared light sources, and institute is so that ink powder has good anti-counterfeiting performance, and the particularly use of Infrared fluorescence powder can be satisfied user's needs of higher false proof requirement.In addition, the property regulation of product can be adjusted realization by the last outer thing that adds, and technological process is simpler and more direct, and the easier regulation and control of properties of product significantly strengthen the printer adaptability of different manufacturers, model.

Embodiment

Below its particle diameter of solid material among each embodiment below 5 μ m, the big need of particle diameter reach this particle diameter requirement through milled processed.Wherein solid material comprises: colored pigment, fluorescent powder, wax, charge adjusting agent, external additive.

First embodiment

Choose 96 parts of emulsion polymerization macromolecule resins (the refreshing cosmetics of everyday use in Wuxi west factory produces, claim not only latex (emulsion) resin), 6 parts red pigment (but also claiming fuchsin), 20 parts of ultraviolet fluorescence powders, 3 parts of wax, 12 parts silicon dioxide.

Above-mentioned emulsion polymerization macromolecule resin and red pigment, wax, ultraviolet fluorescence powder are put together, stir, make mixed solution;

Under 250 ℃ temperature, above-mentioned mixed solution spraying is dried to granular material with spray dryer again;

Afterwards, adopt air current classifying to screen to above-mentioned granular material, remove particle diameter greater than 12 microns, less than 1 micron particle;

At last, will drop in the mixer, and add silicon dioxide,, make red ink powder through evenly mixing through garbled granular material.

Second embodiment

Choose 70 parts emulsion polymerization macromolecule resin (Wuxi refreshing cosmetics of everyday use factory in west or Wuxi rain are contained chemical industry company limited and produced, and claim latex (emulsion) resin again), 5 parts red pigment, 8 parts of Infrared fluorescence powder, 2 parts polypropylene wax, 3 parts charge adjusting agent, 0.5 part hexamethyldisilazane and 0.5 part dimethyldichlorosilane.Earlier emulsion polymerization macromolecule resin, red pigment and wax are put together, stir, make mixed solution;

Under 160 ℃ temperature, above-mentioned mixed solution spraying is dried to granular material with spray dryer again;

Afterwards, adopt air current classifying equipment to carry out sizing screening to above-mentioned granular material, remove particle diameter greater than 12 microns, less than 1 micron particle;

At last, will drop in the mixer, and add hexamethyldisilazane and dimethyldichlorosilane,, make red ink powder through evenly mixing through garbled granular material.

The 3rd embodiment

Choose 85 parts emulsion polymerization macromolecule resin, 10 parts red pigment, 15 parts of Infrared fluorescence powder, 2 parts of charge adjusting agents, 5 parts wax, 3 parts hexamethyldisilazane and 3 parts dimethyldichlorosilane.Wherein: said emulsion polymerization macromolecule resin is the product of west, Wuxi refreshing cosmetics of everyday use factory; Said wax is Tissuemat E;

Earlier emulsion polymerization macromolecule resin, red pigment and wax are put together, stir, make mixed solution;

Under 300 ℃ temperature, above-mentioned mixed solution spraying is dried to granular material with spray dryer again;

Afterwards, adopt air current classifying equipment to carry out sizing screening to above-mentioned granular material, remove particle diameter greater than 12 microns, less than 1 micron particle;

At last, will drop in the mixer, and add hexamethyldisilazane and dimethyldichlorosilane,, make red ink powder through evenly mixing through garbled granular material.

The 4th embodiment

Choose 80 parts emulsion polymerization macromolecule resin (west, Wuxi refreshing cosmetics of everyday use factory produces, and claims latex (emulsion) resin again), 6 parts red pigment, 10 parts of ultraviolet fluorescence powders, 2 parts charge adjusting agent, 5 parts paraffin, 0.6 part silicon dioxide, 1.5 parts hexamethyldisilazane and 1.5 parts dimethyldichlorosilane.

Earlier emulsion polymerization macromolecule resin, red pigment and paraffin are put together, stir, make mixed solution;

Under 200 ℃ temperature, above-mentioned mixed solution spraying is dried to granular material with spray dryer again;

Afterwards, adopt air current classifying equipment to carry out sizing screening to above-mentioned granular material, remove particle diameter greater than 12 microns, less than 1 micron particle;

At last, will drop in the mixer, and add silicon dioxide, hexamethyldisilazane and dimethyldichlorosilane,, make red ink powder through evenly mixing through garbled granular material.

The 5th embodiment

Use the red pigment among first and third embodiment instead black, blueness or yellow uitramarine respectively, can make powdered black ink, blue ink powder or Yellow ink powder respectively.

The 6th embodiment

Use the red pigment among second, four embodiment instead colored pigment that other matches respectively, can obtain the ink powder of different colours.

Change the black pigment of suitable consumption into, can get powdered black ink;

Change the blue pigment of suitable consumption into, can get blue ink powder;

Change the yellow uitramarine of suitable consumption into, can get Yellow ink powder.

(black, blueness and yellow uitramarine are all commercially available, are organic materials.)

Claims (4)

1, a kind of color toner is characterized in that containing the raw material of following weight portion:

70～96 parts of emulsion polymerization macromolecule resins;

0.5～10 part of colored pigment;

Charge adjusting agent 0-3 part

Fluorescent powder 8-20 part;

1～5 part in wax;

External additive: 1-15 part

Wherein: said emulsion polymerization macromolecule resin claims emulsion resin again; Said fluorescent powder is meant ultraviolet fluorescence powder or Infrared fluorescence powder; Said charge adjusting agent is meant salicylic acid metal complex or azo metal complex; Said wax is any one in polypropylene wax, Tissuemat E or the paraffin; External additive is meant: any mixing of any among silicon dioxide, hexamethyldisilazane, the dimethyldichlorosilane three, two kinds or three kinds.

2, color toner according to claim 1, its spy is that described colored pigment selects redness, black, yellow or blue pigment respectively for use;

3, the preparation method of claim 1 or 2 described color toners is characterized in that may further comprise the steps:

Earlier emulsion polymerization macromolecule resin, colored pigment, charge adjusting agent, fluorescent powder and the wax of above-mentioned weight portion are put together, stir, make mixed solution;

Under 160～300 ℃ temperature, above-mentioned mixed solution spraying is dried to granular material with spray dryer again;

Afterwards, adopt air current classifying equipment to carry out sizing screening to above-mentioned granular material, remove particle diameter greater than 12 microns, less than 1 micron particle;

At last, will drop in the mixer, and add the external additive of above-mentioned weight portion,, make color toner through evenly mixing through garbled granular material.

4, according to the preparation method of the described color toner of claim 3, its spy is that described colored pigment selects redness, black, yellow or blue pigment respectively for use.