CN2208492Y

CN2208492Y - False proof stamp

Info

Publication number: CN2208492Y
Application number: CN 95203608
Authority: CN
Inventors: 桑慧敏; 陈畴; 刘毅
Original assignee: Beijing Chengdawanhao New Tech
Current assignee: Beijing Chengdawanhao New Tech. Development Centre
Priority date: 1995-02-28
Filing date: 1995-02-28
Publication date: 1995-09-27
Anticipated expiration: 2005-02-28

Abstract

The utility model relates to a false proof stamp. The stamp surface (3) of the stamp is provided with scripts and patterns (4), and the whole or part of the scripts/ patterns is randomly folded to produce at least a set of stripe grooves (1) with equal distance and uniform width or stripe grooves with desired shapes for having false proof marks. The stripe grooves are either curved line such as a straight line, a fold line, a circle, an ellipse, a high-order curved line, etc., or fingerprints, etc. The scripts and patterns of the impression printed by the stamp are kept originally, and the style and structure are not changed, while with tools to identify, the stripes can be seen clearly. The stripes are thin and the width are very uniform, so that general devices and manual operations can not curve to fake. The random folding of the false proof marks on the script /patterns much increases the false proof property of the utility model.

Description

False proof stamp

The utility model relates to seal, and more specifically, relating to impression has anti-fraud functional security stamp.

In China, seal is widely used for representing trusting of individual or unit, and its importance is on record.

Usually, seal carves printed words or pattern, the insignia etc. that need with manual with icking tool or with machinery equipment at material surfaces such as wood, plastics, stone, rubbers, because seal is to produce by impression to render a service, anti-counterfeit of seals essence is that impression is false proof, no matter seal of the prior art with what method is made all not have can be applicable to the contrast of standard impression simultaneously or not have the identification marking of telling truth from falsehood under two kinds of situations of standard impression contrast, add and manual scribe very simply, easily, therefore easily forge and copy and not easy to identify.Control the channel that carves a seal with administrative way and do not stop the illegal road of carving without permission.

On the other hand, existing seal is subjected to many-sided factor affecting such as technology, material, stamp-pad ink, paper, the clear impression of difficult formation, and perhaps core can not print, the oil of perhaps spreading and sinking in, perhaps writing is firmly greasy, and false proof being difficult to of impression accomplished.

As everyone knows, impression is false proof, must accomplish that mark is open, and known by everybody, everybody can discern, and common process can't be made.

The purpose of this utility model provides a kind of anti-fraud functional seal of impression that has, its anti-fake mark does not destroy former seal standard, structure, can not copy with existing technology, the impression of generation no standard impression according to or have the standard impression according to the time all can be accurately, make things convenient for, distinguish true from false effectively.

The scheme of security stamp of the present utility model is as follows:

Security stamp, chapter holder 2 and chapter face 3 are arranged, literal and/or pattern 4 are arranged on chapter face 3, whole or part thereon superposes randomly with a kind of anti-fake mark ditch 1, this anti-fake mark ditch 1 is that a cover or many in a few cover, spacing equate, wide rill, and described rill is the characters cut in intaglio ditch that is superimposed upon on characters cut in relief literal and the pattern.

Described groove be preferably: adjacent groove spacing, and the spacing distance between promptly adjacent two ditches is 0.01-0.5mm, furrow width 0.01-0.5mm, the ditch depth of seal is not less than 0.005mm.

Described groove 1 can be straight line, broken line, circle, ellipse or various rule or irregular curve, for example can obviously see arbitrary curves such as the high order curve of several humps or sine curve.

In special occasion, also can use the striped of many peculiar shapes of a cover of appointment to make above-mentioned anti-fake mark ditch.

Such anti-fake mark trace surface that is added to can make former impression printed words, pattern still keep intact under general range estimation condition, guarantee not change former impression standard and structure, then will know by magnifying glass (getting final product more than 2 times) and to find out striped trend and shape, number draws unit length intra-striate radicals.

This kind anti-fake mark ditch is formed at the seal printed words with special photetching technology and/or above the pattern, and wide superfine, the rule and evenly extremely of line, and utilizing craft and general device to scribe is impossible realize.

The anti-fake mark ditch is added to the occasion of contrasting for the standard of reservation impression work on the seal at random, for example uses chapter on the bank money, has increased false proof reliable characteristic undoubtedly.

For guaranteeing that false proof striped is clear on impression, constant, adopting specific material with helpful, what belong to this type of material has: polyurethane-acrylate mixture ex hoc genus anne thing, they had both met the utility model security stamp and had made requirement, the superior operating characteristic of tool again comprises suitable elasticity, prolonged indeformable, and oiliness greasy filth etc.

Fig. 1 represents the front view of the utility model security stamp one example.

Fig. 2 represents the front view of the another example of the utility model security stamp.

Fig. 3 is Fig. 1 or Fig. 2 security stamp generalized section along the longitudinal axis.

Below with regard to example shown in the accompanying drawing the utility model security stamp is explained.

The anti-fake mark bar groove 1 of example is a linear among Fig. 1, and furrow width is 0.1mm, (accompanying drawing amplifies) spacing 0.1mm, and ditch depth 0.03mm, material uses the polyurethane-acrylate mixture.This seal uses does not see that impression loses shape for 10,000 times at all, uses continuously and does not clear up the chapter face 1500 times, and the oiliness greasy filth of groove, pull keep former standard, structure constant, but can recognize clear striped.

Anti-fake mark bar groove is a sinusoidal in Fig. 2 example, furrow width 0.1mm, spacing 0.2mm, the dark 0.03mm of groove.Other conditions are identical with the example of Fig. 1.The counterfeit difficulty of this shaped form striped is bigger.

The shape of ditch 1 as can be seen among Fig. 3 can be understood the stereochemical structure of the utility model seal in conjunction with Fig. 1-3.

More than in two examples striped on the impression pattern, be stack at random, the striped trend changes arbitrarily, repeatability is minimum.

Under the condition that has the standard impression to do to contrast, the anti-fake mark ditch can be to specify striped arbitrarily, for example, specifies fingerprint, because the uniqueness of fingerprint, stack is at random in addition copied and will extremely difficultly be realized.To not provide diagram about the example of making the anti-fake mark ditch with fingerprint.

Above example is just for example, and the utility model protection domain that is defined by the claims is not limited in example.

Claims

1, a kind of security stamp has chapter holder (2) and chapter face (3), and printed words and/or pattern (4) are arranged on the chapter face, it is characterized in that being superimposed with at random on the whole or part of described printed words and/or pattern anti-fake mark ditch (1); Described mark ditch is that many at least one cover, spacing equate, the bar groove of furrow width uniformity; Described mark ditch is the characters cut in intaglio ditch on described printed words and/or the pattern characters cut in relief.

2,, it is characterized in that described groove is one or more in the arbitrary curves such as straight line, broken line, circle, ellipse, high order curve according to the security stamp of claim 1.

3,, it is characterized in that described striped ditch width is 0.01mm-0.5mm according to the security stamp of claim 1-2; Be spaced apart 0.01mm-0.5mm between the adjacent ditch.

4,, it is characterized in that described anti-fake mark ditch is shaped as the peculiar striped of appointment according to the security stamp of claim 1.

5, according to the security stamp of claim 4, the peculiar shape of stripes that it is characterized in that described appointment is a fingerprint.

6,, it is characterized in that described striped ditch depth is not less than 0.005mm according to the security stamp of claim 3.

7,, it is characterized in that described chapter flooring is a kind of in polyurethane-acrylate mixture ex hoc genus anne the thing according to the security stamp of claim 1-2.

8,, it is characterized in that described chapter flooring is a kind of in polyurethane-acrylate mixture ex hoc genus anne the thing according to the security stamp of claim 4-5.