CN103786456A

CN103786456A - Encryption printing method

Info

Publication number: CN103786456A
Application number: CN201410051715.XA
Authority: CN
Inventors: 陈宏奇
Original assignee: Shanghai No8 People Print Factory
Current assignee: Shanghai Renmin printing No. 8 Factory Co.,Ltd.
Priority date: 2014-02-14
Filing date: 2014-02-14
Publication date: 2014-05-14
Anticipated expiration: 2034-02-14
Also published as: CN103786456B

Abstract

The invention discloses an encryption printing method. The encryption printing method includes the following steps anti-fake lattice point patterns are generated through a computer, positioning points are set, an offset printing PS plate is manufactured in a micro mode, and the anti-fake lattice point patterns are printed through ultraviolet colorless fluorescent ink. An anti-fake offset printing product is obtained with the method and comprises a paperboard layer, an offset printing ink layer and an ultraviolet colorless fluorescent ink layer, the paperboard layer, the offset printing ink layer and the ultraviolet colorless fluorescent ink layer are sequentially arranged in the anti-fake offset printing product from bottom to top, and the anti-fake lattice point patterns are arranged on the ultraviolet colorless fluorescent ink layer. When observed under an ordinary light source, the ultraviolet colorless fluorescent ink layer is colorless and transparent, and the patterns are not displayed; but when observed with a magnifying lens under an ultraviolet fluorescent light source, violet patterns are shown on the ultraviolet colorless fluorescent ink layer. The patterns are unique, and the patterns are clear at a glance and cannot be copied and counterfeited according to positioning marks and size, distance and distribution of true and false pattern lattice points; meanwhile, decoding sheets are not needed, the patterns are easy to recognize, and thus the anti-fake effect is greatly improved.

Description

A kind of encryption printing process

Technical field

The present invention relates to a kind of printing process of encrypting, relate in particular to a kind of encryption printing process that adopts ultraviolet colorless fluorescent ink printing computer manufacture micro stipple pattern.

Background technology

Anti-counterfeiting technology is a kind ofly to prevent from copying and forging for reaching the measure of taking, existing anti-counterfeiting technology kind is a lot, mainly contains laser anti-counterfeit, code anti-fake, texture anti-fake labeling etc., but all exists cost of manufacture high, be easy to copy the shortcomings such as the ability that consumer does not distinguish the true from the false.Also have a kind of colorless fluorescent anti-counterfeit printing, take graphics software plate-making, re-use ultraviolet colorless fluorescent ink printing, under ultra violet lamp, aim at and observe with decoding piece, show specific pattern or word, to reach antiforge function, its advantage is that stealth can not scan and copies etc., but owing to using decoding piece, alignment precision is difficult to hold, show undesirable, simultaneously can be according to the pattern and character manifesting, in graphics software, copy counterfeitly, reduce antifalse effect.

Therefore, those skilled in the art is devoted to develop a kind of false proof Offset Printing Products and printing process thereof that is easy to demonstration, is difficult to copy.

Summary of the invention

Because the above-mentioned defect of prior art, technical problem to be solved by this invention is to provide a kind of false proof Offset Printing Products and printing process thereof that is easy to demonstration, is difficult to copy.

For achieving the above object, the invention provides a kind of false proof Offset Printing Products that adopts ultraviolet colorless fluorescent ink printing computer manufacture micro anti-counterfeiting mesh dot pattern.

A kind of false proof Offset Printing Products, comprises paperboard layer, offset ink layer and ultraviolet colorless fluorescent ink layer; Paperboard layer, offset ink layer, ultraviolet colorless fluorescent ink layer are arranged in order from bottom to top in false proof Offset Printing Products.

Further, ultraviolet colorless fluorescent ink layer is anti-counterfeiting mesh dot pattern.

Further, the anti-counterfeiting mesh dot pattern pattern of several site separated from one another figures compositions of serving as reasons.

Further, 3 site figure composition anchor points in anti-counterfeiting mesh dot pattern.

Further, the thickness of ultraviolet colorless fluorescent ink layer is 10-20 micron.In the time that its thickness is blocked up, the ink of ultraviolet colorless fluorescent ink layer is too glutinous, is not easy to be dried.

Further, the thickness proportion of paperboard layer, offset ink layer, ultraviolet colorless fluorescent ink layer is 50-70:4:2-3.

More preferably, the thickness proportion of paperboard layer, offset ink layer, ultraviolet colorless fluorescent ink layer is 50:4:2.

Or the thickness proportion of paperboard layer, offset ink layer, ultraviolet colorless fluorescent ink layer is 70:4:3.

Above-mentioned a kind of anti-counterfeit printing product prints and obtains by the following technical programs:

A kind of encryption printing process, comprises the following steps:

(1) generate anti-counterfeiting mesh dot pattern by computer, anti-counterfeiting mesh dot pattern is made up of several site figures separated from one another;

(2) in anti-counterfeiting mesh dot pattern, set site;

(3) anti-counterfeiting mesh dot pattern is dwindled, make offset printing PS plate;

(4) adopt ultraviolet colorless fluorescent ink, antiforge stipple pattern on product.

Further, step (1) comprises following concrete steps: size, distance, shape, distribution form, the crossing condition of setting site figure are parameter, by above parameter input computer, generates described anti-counterfeiting mesh dot pattern.This pattern seems random distribution, and real is unique pattern of corresponding special parameter, cannot copy counterfeit.

Further, above-mentioned distribution form is that circular arc distributes or Triangle-Profile.

Further, step (2) comprises following concrete steps: in anti-counterfeiting mesh dot pattern, choose 3 site figures and be made as anchor point, input witness marker.

Further, witness marker is numeral or word.

Further, step (3) comprises following concrete steps: anti-counterfeiting mesh dot pattern is dwindled, and the common language that need are printed is made into offset printing PS plate with pattern together with described anti-counterfeiting mesh dot pattern.

Further, anti-counterfeiting mesh dot pattern is reduced into 1/8～1/5 of initial size.

Further, step (4) comprises following concrete steps: in offset printing process, last group prints in roller ink reservoir and adds ultraviolet colorless fluorescent ink, antiforge stipple pattern on product.This group prints after the full version printing of roller, and the offset ink layer surface of Offset Printing Products forms the ultraviolet colorless fluorescent ink layer of anti-counterfeiting mesh dot pattern, finally obtains micro concealed anti-false Offset Printing Products.

Further, ultraviolet colorless fluorescent ink is the XN26 type ultraviolet colorless fluorescent ink that the false proof Science and Technology Ltd. of Shanghai ancient cooking vessel woods produces.

Further, it is visible that anti-counterfeiting mesh dot pattern uses magnifying glass directly to observe under Ultraluminescence light source, coordinates without decoding piece.

Beneficial effect:

Offset Printing Products of the present invention, after product printing, has formed the ultraviolet colorless fluorescent ink layer of one deck 10-20 micron, the forme printing that it adopts described computer technology to make on offset ink layer surface.Under ordinary light source, observe, ultraviolet colorless fluorescent ink layer water white transparency, pattern do not show, and under Ultraluminescence light source, uses magnifying glass to observe, and presents purple private network dot pattern.Burelage has uniqueness, and according to witness marker, true and false pattern site size, distance, the difference that distributes be very clear, cannot copy counterfeitly, simultaneously without decoding piece, is easy to identification, has greatly improved antifalse effect.

Below with reference to accompanying drawing, the technique effect of design of the present invention, concrete structure and generation is described further, to understand fully object of the present invention, feature and effect.

Accompanying drawing explanation

Fig. 1 is the profile of common Offset Printing Products;

Fig. 2 is the micro concealed anti-false Offset Printing Products profile of a preferred embodiment of the present invention;

Fig. 3 is the anti-counterfeiting mesh dot pattern schematic diagram of a preferred embodiment of the present invention.

The specific embodiment

Offset Printing Products in this specific embodiment comprises paperboard layer 1, offset ink layer 2, ultraviolet colorless fluorescent ink layer 3.Wherein paperboard layer 1, ink layer 2, ultraviolet colorless fluorescent ink layer 3 are arranged from bottom to top successively in this Offset Printing Products.

In this Offset Printing Products, the ultraviolet colorless fluorescent ink layer 3 on offset ink layer 2 surface is the transparent fluorescent ink layer of 10 microns of thickness, and the Thickness Ratio of paperboard layer 1, offset ink layer 2, ultraviolet colorless fluorescent ink layer 3 is 50:4:2 or 70:4:3.

In the printing process of common Offset Printing Products, the seal roller in offset press is respectively used to print the versicolor ink such as red, yellow, blue, black, and the profile of the Offset Printing Products obtaining as shown in Figure 1.In this specific embodiment, use Heidelberg CD6+1 type offset press.First, wherein 4 groups of seal rollers in this offset press are respectively used to print red, yellow, blue, the ink of black four kinds of colors, and in the end one group of ink reservoir for inking that prints roller adds 0.7 kilogram of XN26 type ultraviolet colorless fluorescent ink (the false proof Science and Technology Ltd. of Shanghai ancient cooking vessel woods produces), forme adopts the offset printing PS plate of computer manufacture micro anti-counterfeiting mesh dot pattern 4, this pattern is network point distribution, first manually set site size, distance, shape, distribution form (circular arc), the parameters such as crossing condition, inputted the packedge of Ai Si section software, by the RIP(raster image processor of software) the automatic generation stipple pattern that calculates, then choose three sites and manually input witness marker 5, finally pattern is dwindled to 5 times, obtain computer manufacture micro anti-counterfeiting mesh dot pattern 4, as shown in Figure 3.This pattern seems random distribution, and real is unique pattern of corresponding special parameter, cannot copy counterfeit.This group prints after the full version of roller print product, forms the ultraviolet colorless fluorescent ink layer 3 of 10 microns of one decks on printed matter ink layer 2 surfaces, finally obtains micro concealed anti-false Offset Printing Products as shown in Figure 2.

More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just can design according to the present invention make many modifications and variations without creative work.Therefore, all technical staff in the art, all should be in by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.

Claims

1. encrypt a printing process, it is characterized in that, comprise the following steps:

(1) generate anti-counterfeiting mesh dot pattern by computer, described anti-counterfeiting mesh dot pattern is made up of several site figures separated from one another;

(2) in described anti-counterfeiting mesh dot pattern, set site;

2. a kind of printing process of encrypting according to claim 1, is characterized in that, step (1) comprises following concrete steps: set the parameter of site figure, parameter is inputted to computer, generate described anti-counterfeiting mesh dot pattern.

3. a kind of printing process of encrypting according to claim 2, is characterized in that, described distribution form is that circular arc distributes or Triangle-Profile.

4. a kind of printing process of encrypting according to claim 1, is characterized in that, step (2) comprises following concrete steps: in described anti-counterfeiting mesh dot pattern, choose 3 site figures and be made as anchor point, input witness marker.

5. a kind of printing process of encrypting according to claim 4, is characterized in that, described witness marker is numeral or word.

6. a kind of printing process of encrypting according to claim 1, it is characterized in that, wherein step (3) comprises following concrete steps: described anti-counterfeiting mesh dot pattern is dwindled, and the common language that need are printed is made into offset printing PS plate with pattern together with described anti-counterfeiting mesh dot pattern.

7. a kind of printing process of encrypting according to claim 6, is characterized in that, described anti-counterfeiting mesh dot pattern is reduced into 1/8～1/5 of initial size.

8. a kind of printing process of encrypting according to claim 1, it is characterized in that, wherein step (4) comprises following concrete steps: in offset printing process, last group prints in roller ink reservoir and adds ultraviolet colorless fluorescent ink, antiforge stipple pattern on product.

9. a kind of printing process of encrypting according to claim 1, is characterized in that, described ultraviolet colorless fluorescent ink is the XN26 type ultraviolet colorless fluorescent ink that the false proof Science and Technology Ltd. of Shanghai ancient cooking vessel woods produces.

10. a kind of printing process of encrypting according to claim 1, is characterized in that, it is visible that anti-counterfeiting mesh dot pattern uses magnifying glass directly to observe under Ultraluminescence light source, coordinates without decoding piece.