CN1799855A

CN1799855A - Method for printing perspective color-superposed latent image by counter-printing concave print

Info

Publication number: CN1799855A
Application number: CN200510022370.6A
Authority: CN
Inventors: 邱燕新
Original assignee: China Banknote Printing and Minting Corp
Current assignee: China Banknote Printing and Minting Group Co Ltd
Priority date: 2005-12-23
Filing date: 2005-12-23
Publication date: 2006-07-12
Anticipated expiration: 2025-12-23
Also published as: CN100360323C

Abstract

The invention discloses a printing method for gravure penetrate printing latent image, which comprises following steps: (1) decomposing penetrate latent image to be arranged in front and back gravure patterns; (2) accurately printing the gravure pattern to print the decomposed penetrate latent image on the front and back surfaces of false proof paper. Since the penetrate latent image is decomposed to be arranged into the front and back gravure patterns, when watching any one of them, the uncompleted information can not be watched. And it can be watched when penetrating backlighting. The invention adds a layer of false proof operation based on the gravure latent image, micro-retract word, pattern, and disturb pattern, to effectively avoid forging gravure false proof paper.

Description

Gravure is looked the printing method of folded look latent image to printthrough

Technical field

The present invention relates to a kind of paper printing field, specifically, relate to a kind of gravure is looked folded look latent image to printthrough printing method.

Background technology

The gravure anti-fake technology adopts hand engraving intaglio printing literal, pattern, makes gravure latent image, gravure lace bouquet, prints the surface at it and is formed with raised line clearly, and concave-convex sense is strong, is easy to identification, is widely used on money and the whole certificate, as security purposes.For further improving antifalse effect, in the gravure figure of complexity line, also be concealed with hidden pattern or literal.Utilize the high low-resistance photosensitiveness of raised line, frontlighting can be seen hidden pattern or literal clearly, abbreviates stealth or latent image in the industry as.

Summary of the invention

Goal of the invention of the present invention is further to enrich the gravure anti-fake technology, increases the gravure anti-fake level, promotes the imitative pseudo-performance of a line of anti-forge papers such as money, security, more effectively prevents the forgery of adulterator to the gravure anti-fake paper.

For achieving the above object, gravure of the present invention is looked the printing method of folding the look latent image to printthrough, may further comprise the steps:

(1), a folded look latent image pattern of perspective is decomposed, and just be placed in, in the back of the body biconcave impression line;

(2), gravure figure line is carried out accurately seal, make the folded look latent image pattern-information of perspective after the decomposition complementally to being imprinted on the positive and negative two sides of anti-forge paper.

The object of the present invention is achieved like this, decomposes owing to will have an X-rayed folded look latent image pattern, and just be placed in, carry on the back in the biconcave impression line, makes two-sided patterned when any one side is observed separately, all invisible because of INFORMATION OF INCOMPLETE.And, then can see the folded look latent image pattern of perspective in the backlight perspective.Gravure of the present invention is folded the printing method of look latent image on the basis of original gravure latent image, micro text, lace, interference line to the printthrough look, increase the imitative pseudo-measure of one deck one line again, more effectively prevents the forgery of adulterator to the gravure anti-fake paper.

Description of drawings

Fig. 1 is the decomposable process of the folded look latent image pattern of perspective;

Fig. 2 is the additive process that positive back side gravure figure line and perspective are folded look latent image pattern;

Fig. 3 is a comprehensive latent image information in the positive back side and the digital additive process that disturbs line shown in Figure 2;

Fig. 4 is the folded look latent image front of a perspective pattern;

Fig. 5 is the folded look latent image back side of a perspective pattern;

Fig. 6 is the gravure latent image pattern of seeing after the folded look latent image of perspective tilts to rotate;

Fig. 7 is the folded look latent image pattern of perspective that the folded look latent image backlight perspective of perspective is seen.

Among the figure, the positive digital digital gravure latent image 502-back side, the line 501-front gravure latent image 6-knob rope lace that disturbs in the line 402-back side that disturbs of the positive comprehensive latent image information 302-back side comprehensive latent image information 401-of the folded digital code information 102-back side, the look latent image pattern 101-front digital code information 201-front elevation line 202-back view line 301-of 1-perspective.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the printing method that gravure of the present invention is looked folded look latent image to printthrough is described in further detail and describes.

Fig. 1 is the decomposable process of the folded look latent image pattern of perspective.Among the figure, the folded look latent image pattern 1 of perspective is literal " Qiu ", by the computer photograph process, it is carried out electronics be decomposed into two parts, and each part all is incomplete, and is made into positive back side digital code information 101,102.

Fig. 2 is the additive process that positive back side gravure figure line and perspective are folded look latent image pattern.Among the figure, with the positive back side digital code information 101,102 that obtains among Fig. 1, being placed in has the positive back view line 201,202 of gravure latent image figure line " Q ", promptly just, in the back of the body biconcave impression line, produce positive comprehensive latent image information 301 and the comprehensive latent image information 302 in the back side.

Fig. 3 is a comprehensive latent image information in the positive back side and the digital additive process that disturbs line shown in Figure 2.Among the figure, comprehensive latent image information 301,302 in the positive back side and the digital line 401,402 that disturbs are superposeed, needing to obtain the positive back side gravure latent image 501,502 of printing.

The positive back side gravure latent image that the needs that Fig. 3 obtains are printed, by the seal machine being carried out accurately to seal, make after the decomposition the folded look latent image pattern 1 message complementary sense ground of perspective to be imprinted on anti-forge paper just, carry on the back the two sides.

Fig. 4 is the folded look latent image front of a perspective pattern.Among the figure, when carrying out top view, can only see knob rope lace 6 and the positive digital line 401 that disturbs to having an X-rayed folded look latent image.

Fig. 5 is the folded look latent image back side of a perspective pattern.Among the figure, when carrying out back side observation, can only see the digital line 402 that disturbs in the back side to having an X-rayed folded look latent image.

Fig. 6 is the gravure latent image pattern of seeing after the folded look latent image of perspective tilts to rotate.Among the figure, observe the front latent image separately, tilt, after the rotation, when consistent, can see complete gravure latent image pattern " Q " with gravure latent image pattern " Q " gravure line direction.

Fig. 7 is the folded look latent image pattern of perspective that the folded look latent image backlight perspective of perspective is seen.The backlight perspective then can be seen, folded look latent image pattern 1 " Qiu " word of perspective.

In implementation process, just carrying on the back and adopting different colour system printing ink to carry out accurately seal, like this, and can be in backlight perspective process, the perspective that conversion makes new advances is folded the look latent image.Different colour system printing ink are complementary colours preferably.In addition, printing ink China ink, the i.e. light transmission of printing ink, mobile between gravure ink and offset ink.The gravure ink light transmission is relatively poor, flowability a little less than, offset ink is then opposite.For ease of gravure printing, guarantee that the folded look latent image of perspective is high-visible, the printing ink that the folded look latent image printing of perspective is used is between gravure ink and offset ink.

Recto intaglio is normally corroded, and corrosion depth is 0.06～0.07 millimeter, and the back side gravure etching degree of depth can guarantee to have an X-rayed the light transmission of folded look latent image like this between 0.03～0.04 millimeter.

In the present embodiment, gravure latent image, the folded look latent image of perspective are printed on together by intaglio printing, the backlight perspective then can be seen the folded look latent image pattern of perspective; Positive face tilt, rotation then can be seen complete gravure latent image pattern.Thereby anti-counterfeiting performance is improved, and more effectively prevents the forgery of adulterator to the gravure anti-fake paper.

Gravure of the present invention is not limited to the scope of the specific embodiment to the printing method of the folded look latent image of printthrough look, and all utilize innovation and creation that the present invention conceives all at the row of protection.

Claims

1. a gravure is looked the printing method of folding the look latent image to printthrough, may further comprise the steps:

2. gravure according to claim 1 is looked the printing method of folding the look latent image to printthrough, it is characterized in that described positive back side gravure figure line has gravure latent image figure line.

3. gravure according to claim 1 is looked the printing method of folding the look latent image to printthrough, it is characterized in that, the folded look latent image pattern of described perspective decomposes the back and adopts complementary colours colour system printing ink to print.

4. gravure according to claim 1 is looked the printing method of folding the look latent image to printthrough, it is characterized in that, described being used for normally corrodes the recto intaglio of seal, and corrosion depth is 0.06～0.07 millimeter, and the back side gravure etching degree of depth is between 0.03～0.04 millimeter.

5. gravure according to claim 1 is looked the printing method of folding the look latent image to printthrough, it is characterized in that the light transmission of the printing ink that printing is used, mobile between gravure ink and offset ink.