CN101147630A - Optical changeable pattern coin and manufacturing method thereof - Google Patents

Optical changeable pattern coin and manufacturing method thereof Download PDF

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Publication number
CN101147630A
CN101147630A CNA2006100478339A CN200610047833A CN101147630A CN 101147630 A CN101147630 A CN 101147630A CN A2006100478339 A CNA2006100478339 A CN A2006100478339A CN 200610047833 A CN200610047833 A CN 200610047833A CN 101147630 A CN101147630 A CN 101147630A
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CN
China
Prior art keywords
coin
pattern
changeable pattern
mould
optical
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Pending
Application number
CNA2006100478339A
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Chinese (zh)
Inventor
赖茂明
张吉刚
勾久斌
张波
梁军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Banknote Printing and Minting Corp
Original Assignee
China Banknote Printing and Minting Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Banknote Printing and Minting Corp filed Critical China Banknote Printing and Minting Corp
Priority to CNA2006100478339A priority Critical patent/CN101147630A/en
Publication of CN101147630A publication Critical patent/CN101147630A/en
Pending legal-status Critical Current

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Abstract

The present invention relates to a kind of coin and its making method. Specially, it relates to a kind of coin with optically variable pattern and its making method. It is characterized by that an optically variable pattern can be applied on the local surface of said coin, so that said optically-variable pattern can be organically combined together with other pattern of coin surface so as to raise visual effect and anti-false property of coin.

Description

Optical changeable pattern coin and manufacture method thereof
Technical field
The present invention relates to a kind of coin and manufacture method thereof, particularly relate to a kind of coin and manufacture method thereof with optical changeable pattern.
Background technology
At present, along with the continuous progress of society and the continuous development of coinage technology, existing increasing advanced anti-counterfeiting technology is applied to coinage technology, these The Application of Technology have not only increased the anti-counterfeiting performance of coin, reduce the counterfeit money manufacturing feasibility, also strengthened the visual effect and the sight of coin simultaneously greatly.
In the eighties in 20th century, hologram has captured false proof field very soon, and has obtained using widely in a plurality of fields with its novelty, strong visual effect, the difficulty of making and cheap characteristics such as price, checking easily, information and technology content height.Hologram is according to interference of light and diffraction principle, utilizes the spatial frequency Methods for Coding to be made.At present, this technology has been successfully applied in the making of holographic gold silver commemorative coin, as Canadian holographic maple leaf gold, silver coin, illusion-colour kwan-yin gold coin of China etc.But up to the present, the preparation method of holographic coin only limits to embossed holographic and makes, and its making can be divided into three phases: the rainbow hologram of at first taking a relief type is as mother matrix; Then the embossing hologram on it is transferred on the metallic nickel through electroforming, made the nickel version; Utilize the nickel version to impress out hologram at last in the coin part.Because the restriction of the hardness of nickel version, a nickel version only can impress tens pieces of coins, and its impression quality just reduces greatly subsequently, and its efficient is very low.
" holography " speech is used to make a general reference optical changeable pattern (Optical VariableDevice or OVD) at home for a long time, but " holography " (HOLOGRAM) has a clear and definite definition in English, and it is the part in the multiple mother matrix technology that contains of OVD.Up-to-date OVD technology obviously is different from the HOLOGRAM hologram of extensive employing.
Use the OVD technology and can produce the complicated meticulous vision changeable pattern of microstructure, this pattern transfer is by using groove to form in the meticulous diffraction structure of patterned surfaces.The OVD pattern have than hologram more clear pattern describe and can make the pattern various piece can both send especially magnificent glory.Why the color of pattern can change, and is that the spacing of groove and the degree of depth can reach below one micron even hundreds of nanometers because adopted special backing plate or metallic plate to impress out tiny groove as mold at substrate surface.The light that these grooves can make all penetrate on substrate surface is decomposed into the formation look according to the degree of depth and the spacing of diverse location groove.
It is high in technological content for the OVD technology, is difficult to copy.What is more important, if can directly the OVD technology be applied in the making of mould, just can directly impress the coin product, and save the program of electroformed nickel version with mould, also overcome simultaneously the shortcomings such as pattern deformation that nickel version impression is brought, increased substantially production efficiency.The OVD technology is applied in the coinage technology, will strengthens the popular anti-counterfeiting performance of coin greatly, its coin surfacial pattern changes abundant, beautiful in colour pattern simultaneously, has more increased the visual of coin and has appreciated effect.
Summary of the invention
The purpose of this invention is to provide a kind of vision changeable pattern coin and manufacture method thereof, it can be enhanced productivity, increase the complexity of coin picture on surface, improve the anti-performance of coin, and make the coin surfacial pattern change abundant, beautiful in colour pattern, more increase the visual of coin and appreciated effect.
For achieving the above object, the present invention is achieved in that the vision changeable pattern coin, and optical changeable pattern is located at the local surfaces of coin matrix, and optical changeable pattern combines with other pattern on coin matrix and surface.
The manufacture method of vision changeable pattern coin, it utilizes mould directly to impress the base cake on the mould that the optically-variable technology is utilized laser processing mode to be applied directly to be used to impress again.
Technological process on the described mould that the optically-variable technology is utilized laser processing mode to be applied directly to be used to impress is as described below: according to design of patterns picture proof and the required color effect that obtains, by the computer software design, give the pattern zones of different with different gash depths and spacing; Precise polished processing is carried out on the mould steel surface, reached mirror effect; Utilize laser processing technology, adjust every optical parameters such as pulsewidth, wavelength, pharosage, the processing of groove is carried out according to computer design in advance in the mould steel surface after polishing, thereby obtains the very complicated meticulous striped of die surface.When transformation angle, can observe the continuous variation of color like this, and when same view, also can watch the glory of the different colours that diverse location sent of pattern.
Beneficial effect of the present invention is as follows:
The vision changeable pattern coin that the present invention produces, its surface have abundant, the beautiful in colour pattern of graphic change, have enriched the content on coin surface, have increased the sight of coin, thereby attract more coin, chapter collector's sight.More main is, this technology with high content of technology, and the fake producer is difficult to copy, thereby has improved the popular anti-counterfeiting performance of coin.Adopt the inventive method to make the vision changeable pattern coin, can improve the production efficiency of coin.Before having overcome, it is difficult to holographic technology directly is applied in defective on the die.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is the optical changeable pattern visual effect figure of coin of the present invention.
Fig. 2 is the local groove microstructure schematic diagram of Fig. 1.
Fig. 3 has the structural representation of optical changeable pattern coin for the present invention.
Among the figure, 1, the coin matrix; 2, optical changeable pattern.
The specific embodiment
Optical changeable pattern coin of the present invention, as shown in Figure 3, its structure is: optical changeable pattern 2 is located at the local surfaces of coin matrix 1, and optical changeable pattern 2 combines with other pattern on coin matrix 1 and surface.
Below the manufacture method of optical changeable pattern coin of the present invention is described in detail in conjunction with the accompanying drawings: according to the design of patterns picture proof, and the required color effect that obtains (as shown in Figure 1), by the computer software design, give the pattern zones of different with different gash depths and spacing; The mould steel matrix surface is carried out precise polished processing, reach mirror effect; Utilize laser processing technology, adjust every optical parameters such as pulsewidth, wavelength, pharosage, mould steel matrix surface after polishing carries out the processing of groove according to computer design in advance, thereby obtain the very complicated meticulous striped of die surface, groove structure as shown in Figure 2, promptly obtained having the mould of optical changeable pattern, when transformation angle, can observe the continuous variation of color like this, and when same view, also can watch the glory of the different colours that diverse location sent of pattern; After obtaining having the mould of optical changeable pattern, utilize mould directly to impress the base cake again, thereby obtain picture on surface vision changeable pattern coin beautiful in colour.

Claims (3)

1. vision changeable pattern coin is characterized in that optical changeable pattern is located at the local surfaces of coin matrix, and optical changeable pattern combines with other pattern on coin matrix and surface.
2. the manufacture method of vision changeable pattern coin is characterized in that it with the mould that the optically-variable technology is utilized laser processing mode to be applied directly to be used to impress, utilizes mould directly to impress the base cake again.
3. the manufacture method of vision changeable pattern coin according to claim 2, it is characterized in that the technological process on the described mould that the optically-variable technology is utilized laser processing mode to be applied directly to be used to impress is as described below: according to design of patterns picture proof and the required color effect that obtains, by the computer software design, give the pattern zones of different with different gash depths and spacing; Precise polished processing is carried out on the mould steel surface, reached mirror effect; Utilize laser processing technology, adjust every optical parameters such as pulsewidth, wavelength, pharosage, the processing of groove is carried out according to computer design in advance in the mould steel surface after polishing, thereby obtains the very complicated meticulous striped of die surface.
CNA2006100478339A 2006-09-21 2006-09-21 Optical changeable pattern coin and manufacturing method thereof Pending CN101147630A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2006100478339A CN101147630A (en) 2006-09-21 2006-09-21 Optical changeable pattern coin and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2006100478339A CN101147630A (en) 2006-09-21 2006-09-21 Optical changeable pattern coin and manufacturing method thereof

Publications (1)

Publication Number Publication Date
CN101147630A true CN101147630A (en) 2008-03-26

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CNA2006100478339A Pending CN101147630A (en) 2006-09-21 2006-09-21 Optical changeable pattern coin and manufacturing method thereof

Country Status (1)

Country Link
CN (1) CN101147630A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102488366A (en) * 2011-12-20 2012-06-13 上海造币有限公司 Nickel-coated steel coin with double-face hidden pattern, and manufacturing technology thereof
WO2014082251A1 (en) * 2012-11-29 2014-06-05 Sicpa Holding Sa Optical variable effects as security feature for embossed metal coins
CN104223620A (en) * 2013-06-20 2014-12-24 中钞特种防伪科技有限公司 Coin medal
CN105206175A (en) * 2015-10-23 2015-12-30 浙江大学 Anti-counterfeit label based on patterned metal nanocomposite and production method of anti-counterfeit label
CN108464587A (en) * 2018-03-21 2018-08-31 深圳市金宝盈文化股份有限公司 A kind of hard gold process of illusion-colour jewelry piece
CN108477780A (en) * 2018-03-21 2018-09-04 深圳市金宝盈文化股份有限公司 A kind of oil pressure technique of illusion-colour jewelry piece
CN108477781A (en) * 2018-03-21 2018-09-04 深圳市金宝盈文化股份有限公司 A kind of reverse mould technique of illusion-colour jewelry piece
CN109804322A (en) * 2016-10-13 2019-05-24 斯沃奇集团研究和开发有限公司 For manufacturing the method for being provided with the embossed decorative object of attachment

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102488366A (en) * 2011-12-20 2012-06-13 上海造币有限公司 Nickel-coated steel coin with double-face hidden pattern, and manufacturing technology thereof
WO2014082251A1 (en) * 2012-11-29 2014-06-05 Sicpa Holding Sa Optical variable effects as security feature for embossed metal coins
CN104883921A (en) * 2012-11-29 2015-09-02 锡克拜控股有限公司 Optical variable effects as security feature for embossed metal coins
CN104223620A (en) * 2013-06-20 2014-12-24 中钞特种防伪科技有限公司 Coin medal
CN105206175A (en) * 2015-10-23 2015-12-30 浙江大学 Anti-counterfeit label based on patterned metal nanocomposite and production method of anti-counterfeit label
CN105206175B (en) * 2015-10-23 2018-06-29 浙江大学 Anti-counterfeiting mark based on pattern metal nanocomposite and preparation method thereof
CN109804322A (en) * 2016-10-13 2019-05-24 斯沃奇集团研究和开发有限公司 For manufacturing the method for being provided with the embossed decorative object of attachment
CN108464587A (en) * 2018-03-21 2018-08-31 深圳市金宝盈文化股份有限公司 A kind of hard gold process of illusion-colour jewelry piece
CN108477780A (en) * 2018-03-21 2018-09-04 深圳市金宝盈文化股份有限公司 A kind of oil pressure technique of illusion-colour jewelry piece
CN108477781A (en) * 2018-03-21 2018-09-04 深圳市金宝盈文化股份有限公司 A kind of reverse mould technique of illusion-colour jewelry piece

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Open date: 20080326