CN205608757U - Coding structure based on fluorescent ink - Google Patents
Coding structure based on fluorescent ink Download PDFInfo
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- CN205608757U CN205608757U CN201620118728.9U CN201620118728U CN205608757U CN 205608757 U CN205608757 U CN 205608757U CN 201620118728 U CN201620118728 U CN 201620118728U CN 205608757 U CN205608757 U CN 205608757U
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Abstract
The utility model discloses a coding structure based on fluorescent ink. This coding structure is provided with the fluorescent ink layer through surface outside the base member to be formed with hollow out construction in the fluorescent ink layer, make the fretwork part among the fluoroscopic image that the fluorescent ink layer corresponds constitute fluorescence fretwork pattern. This coding structure can also set up the fluorescent ink layer through the outside surface at the base member to it restraines the provocative gloss oil layer of fluorescence to set up on the surface on fluorescent ink layer, wherein, be formed with hollow out construction in the gloss oil layer, the fluorescent ink layer constitutes fluorescence at hollow out construction's the fluoroscopic image that corresponding position formed and shows the pattern. Examine time measuring and acquire fluoroscopic image, can follow the fluorescence demonstration pattern that obtains the darker fluorescence fretwork pattern of luminance or directly obtain to become clear among the fluoroscopic image. Because fluorescence fretwork pattern and fluorescence demonstration pattern contrast examining the light and shade that time measuring demonstrates with the bottom is completely different to the recognition rate of the pattern that corresponds with fluorescence fretwork pattern and fluorescence demonstration pattern has been increased substantially.
Description
Technical field
This utility model relates to a kind of endowed structure, particularly relates to a kind of endowed structure based on fluorescent ink.
Background technology
The market space of fast-moving consumer goods is the hugest.Each producer, in order to promote its product of sales promotion, implements various marketing program.The most most commonly seen, broad covered area, effect are the most reasonable is " coming one bottle again " advertising campaign.Since " coming one bottle again " advertising campaign is promoted, achieve extraordinary marketing effectiveness, but in extension process, there is problems in that one is bottle cap or draw ring recovery trouble, needed the backward producer of the unified collection of distributor to exchange；Two is bottle cap or the draw ring a lot of personation occur, and producer cannot distinguish；Three is that the prize of this marketing mode is single.
Along with the application popularization of Quick Response Code, manufacturer proposes and arranges Quick Response Code on pop can top cover or crown plug and do the scheme of advertising campaign.Using Quick Response Code to carry out sales promotion, there is following benefit: 1, consumer participates in conveniently, getting final product activity as long as sweeping to sweep with mobile phone；2, because Quick Response Code imitation difficulty is relatively big, it is possible to prevent to forge；3, consumer can select prize on the net, makes advertising campaign more horn of plenty；4, need not artificially collect draw ring, save manpower.Further, it is also possible to arrange Quick Response Code or character code the tank bottoms of pop can or can body, it is used for carrying out marketing activity, and trace to the source inquiry and the demand of anti-channel conflict inquiry can be met simultaneously.
In the prior art, when outside pop can top cover, can body, tank bottoms or crown plug, Quick Response Code or character code are set, general by spraying base oil, gloss oil on metallic matrix, then carry out two dimension code layer or the spraying of character code layer, or form pattern in 2 D code or character code pattern by exposing base oil after laser ablation gloss oil.In majority is applied, between base oil and gloss oil, it is additionally provided with printing pattern layer.In actual use, owing to tank body itself and printing pattern layer thereof have many background colors or have the color close with character code layer or two dimension code layer, easily cause the recognition difficulty of Quick Response Code or character code, cause recognition rate low.To this end, also need to existing endowed structure is improved so that it is have higher recognition rate.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of endowed structure based on fluorescent ink.
To achieve these goals, this utility model employing following technical proposals:
A kind of endowed structure based on fluorescent ink, including matrix, it is provided with fluorescent ink layer in the whole region or regional area of described matrix outer surface, being formed with engraved structure in described fluorescent ink layer, the openwork part in the fluoroscopic image that described fluorescent ink layer is corresponding constitutes fluorescence pierced pattern.
The most more preferably, between described matrix and described fluorescent ink layer, it is provided with printing pattern layer.
The most more preferably, between described printing pattern layer and described fluorescent ink layer, light oil reservoir it is provided with.
The most more preferably, the surface configuration at described fluorescent ink layer has can be through the light oil reservoir of fluorescence, and described smooth oil reservoir forms identical engraved structure in the position corresponding with described engraved structure.
The most more preferably, described fluorescence pierced pattern is pattern in 2 D code or character code pattern, and described character code pattern is made up of letter and/or numeral, point a line or plurality of rows.
A kind of endowed structure based on fluorescent ink, including matrix, is provided with fluorescent ink layer in the whole region or regional area of described matrix outer surface, and the surface configuration at described fluorescent ink layer has the light oil reservoir that Fluorophotometry excites；Wherein, being formed with engraved structure in described smooth oil reservoir, the fluoroscopic image that described fluorescent ink layer is formed at the correspondence position of described engraved structure constitutes fluorescence display pattern.
The most more preferably, between described matrix and described fluorescent ink layer, it is provided with printing pattern layer.
The most more preferably, described fluorescence display pattern is pattern in 2 D code or character code pattern, and described character code pattern is made up of letter and/or numeral, point a line or plurality of rows.
The most more preferably, described matrix is metallic matrix, and described metallic matrix has overlay film or is coated with base oil.
The most more preferably, described matrix is that pop can top cover, pop can body, pop can be tank bottoms or any one in crown plug.
A kind of endowed structure based on fluorescent ink, including matrix, is coated with the base oil layer doped with fluorescent material at described matrix outer surface, and, it is provided above, at described base oil layer, the light oil reservoir that Fluorophotometry excites；Being formed with engraved structure in described smooth oil reservoir, the fluoroscopic image that the fluorescent material in described base oil layer is formed at the correspondence position of described engraved structure constitutes fluorescence display pattern.
The most more preferably, between described matrix and described smooth oil reservoir, it is provided with printing pattern layer；Described printing pattern layer forms identical engraved structure in the position corresponding with described engraved structure.
The most more preferably, described fluorescence display pattern is pattern in 2 D code or character code pattern, and described character code pattern is made up of letter and/or numeral, point a line or plurality of rows.
The most more preferably, described matrix is metallic matrix.
The most more preferably, described matrix is that pop can top cover, pop can body, pop can be tank bottoms or any one in crown plug.
Endowed structure based on fluorescent ink provided by the utility model, including matrix, and forms fluorescence pierced pattern or fluorescence display pattern at matrix outer surface.Obtain fluoroscopic image during detection, the dark fluorescence pierced pattern of brightness can be obtained from fluoroscopic image or directly obtain bright fluorescence display pattern.Owing to fluorescence pierced pattern and fluorescence display pattern present comparison of light and shade distinct with background color when detection, thus improve the contrast between fluorescence pierced pattern and fluorescence display pattern and background color, the recognition rate of the pattern in 2 D code corresponding to fluorescence pierced pattern or fluorescence display pattern or character code pattern can be increased substantially.Above-mentioned fluorescence pierced pattern and fluorescence display pattern may be used for the anti-channel conflict inquiry in transport, sales process and inquiry of tracing to the source；Further, above-mentioned pattern is in stealthy state under natural light so that product packaging is more attractive in appearance, and is difficult to, by simple copy, improve imitation difficulty, can more effective anti-counterfeiting.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of crown plug being provided with pattern in 2 D code and printed patterns；
Fig. 2 is the first cross-sectional view of lid in Fig. 1；
Fig. 3 is the second cross-sectional view of lid in Fig. 1；
Fig. 4 is the third cross-sectional view of lid in Fig. 1；
Fig. 5 is the 4th kind of cross-sectional view of lid in Fig. 1；
Fig. 6 is the 5th kind of cross-sectional view of lid in Fig. 1.
Detailed description of the invention
With specific embodiment, technology contents of the present utility model is further described below in conjunction with the accompanying drawings.
When pattern in 2 D code or character code pattern being set in order to overcome on the metallic matrixes such as pop can top cover, tank bottoms, can body or crown plug present in prior art, between pattern in 2 D code or character code pattern and the base oil being sprayed on matrix or printed patterns, color is close, be difficult to the defect of recognition, and this utility model provides a kind of endowed structure based on fluorescent ink.The fluoroscopic image corresponding by obtaining fluorescent ink layer, then extracts the dark fluorescence pierced pattern of brightness or directly obtains bright fluorescence display pattern, the pattern in 2 D code in endowed structure or character code pattern can be detected.Owing to fluorescence pierced pattern and fluorescence display pattern present comparison of light and shade distinct with background color when fluoroscopic examination, contrast between fluorescence pierced pattern and fluorescence display pattern and background color is very big, such that it is able to improve pattern in 2 D code or the recognition rate of character code pattern.
As a example by the crown plug shown in Fig. 1, this endowed structure based on fluorescent ink is specifically described below.Same in the endowed structure of top cover, can body and the tank bottoms setting of pop can, no longer it is discussed in detail at this.It will be appreciated, of course, that and can also make same endowed structure on other metallic matrixes.
Crown plug as shown in Figure 1, including lid 1 and the skirt section 2 being distributed in lid 1 periphery.Outer surface at lid 1 is provided with pattern in 2 D code 3 and printed patterns 4.Owing to, in this endowed structure, using the mode of laser ablation fluorescent ink layer or light oil reservoir to form pattern in 2 D code 3, therefore, it is recommended that pattern in 2 D code 3 and printed patterns 4 are distributed in the zones of different on lid 1 surface.Certainly, in order to design needs, pattern in 2 D code 3 and printed patterns 4 can also have overlap.When pattern in 2 D code 3 and printed patterns 4 have overlap, it is preferred printing pattern layer is arranged between the matrix of fluorescent ink layer and lid 1.When arranging character code pattern in the outside of the lid 1 of crown plug, it is similar with the mode arranging pattern in 2 D code 3, no longer introduces at this.Wherein, the information in character code pattern can be made up of letter and/or numeral, and character code pattern can divide a line or plurality of rows.
Below in conjunction with the different A-A cross-section structure shown in Fig. 2 to Fig. 6, respectively to carrying out citing introduce corresponding to fluorescence pierced pattern and the endowed structure of fluorescence display pattern and Cleaning Principle thereof involved by this utility model.
The first structure fluorescence pierced pattern
As in figure 2 it is shown, lid 1 has three-decker.Lid 1 includes that matrix 10, matrix 10 have overlay film or be coated with base oil.In the whole region of matrix 10 outer surface, it is provided with fluorescent ink layer 12, between matrix 10 and fluorescent ink layer 12, is provided with printing pattern layer 11.Formed in fluorescent ink layer 12 and the engraved structure 15 corresponding to pattern in 2 D code 3 by laser etching process.By changing the path of laser engraving, the pattern in 2 D code 3 comprising different information can be formed.Above-mentioned fluorescent ink layer 12 can also replace with the light oil reservoir doped with fluorescent material.
When using fluorescence identifying device to detect, excitation source excites fluorescent ink layer 12 to send the light of specific wavelength, light filter makes the light of specific wavelength by also imaging, thus fluorescence identifying device can obtain the fluoroscopic image corresponding to the luminous component in fluorescent ink layer 12, wherein, the openwork part in fluoroscopic image constitutes fluorescence pierced pattern.This fluorescence pierced pattern is corresponding to the pattern in 2 D code 3 in Fig. 1.The pattern in 2 D code 3 dark owing to only including brightness corresponding to bright background color that the specific fluorescent that the luminous component of fluorescent ink layer excited formed and openwork part in the fluoroscopic image that fluorescence identifying device is obtained, pattern in 2 D code 3 and surrounding background color present obvious comparison of light and shade, thus improve the contrast between fluorescence pierced pattern and background color, the recognition rate when detection of the pattern in 2 D code 3 corresponding to fluorescence pierced pattern can be increased substantially.
Lid 1 as shown in Figure 3 has three layers or four-layer structure, including matrix 10, is upwards disposed with printing pattern layer 11 and fluorescent ink layer 12 at matrix 10 outer surface.Wherein, fluorescent ink layer 12 is provided only in the designated local region above printing pattern layer 11.Being formed in fluorescent ink layer 12 and the engraved structure 15 corresponding to pattern in 2 D code 3 by laser etching process, the openwork part in the fluoroscopic image of fluorescent ink layer 12 correspondence constitutes fluorescence pierced pattern.
Can be through the light oil reservoir 13 of fluorescence additionally, can also arrange on the outer surface of fluorescent ink layer 12 and printing pattern layer 11.Light oil reservoir 13 will not hinder fluorescence excitation, and when using fluorescence identifying device to detect, the light of the specific wavelength that the luminous component of fluorescent ink layer 12 sends can be through imaging after light oil reservoir 13.Thus fluorescence identifying device can obtain the fluoroscopic image corresponding to the luminous component in fluorescent ink layer 12, wherein, the openwork part in fluoroscopic image constitutes fluorescence pierced pattern.This fluorescence pierced pattern is corresponding to the pattern in 2 D code 3 in Fig. 1.When being provided above light oil reservoir 13 at fluorescent ink layer 12, in manufacturing process, fluorescent ink layer 12 can be carried out laser ablation before or after spraying light oil reservoir 13 and form engraved structure.When carrying out laser ablation again after spraying light oil reservoir 13 above fluorescent ink layer 12, in light oil reservoir 13 and fluorescent ink layer 12, form identical engraved structure.
Lid 1 as shown in Figure 4 has four-layer structure equally, wherein, including matrix 10, is upwards disposed with printing pattern layer 11, light oil reservoir 13 and fluorescent ink layer 12 at matrix 10 outer surface.Wherein, fluorescent ink layer 12 is provided only in the appointment region above light oil reservoir 13.Being formed in fluorescent ink layer 12 and the engraved structure 15 corresponding to pattern in 2 D code 3 by laser etching process, the openwork part in the fluoroscopic image of fluorescent ink layer 12 correspondence constitutes fluorescence pierced pattern.
The Cleaning Principle of fluorescence pierced pattern as shown in Figure 3 and Figure 4 is identical with the Cleaning Principle of the fluorescence pierced pattern shown in Fig. 2, no longer introduces at this.
The second structure fluorescence display pattern
Lid as shown in Figure 5 has four-layer structure.Lid 1 includes that matrix 10, matrix 10 have overlay film or be coated with base oil.In the whole region or designated local region of matrix 10 outer surface, it is provided with fluorescent ink layer 12, between matrix 10 and fluorescent ink layer 12, is provided with printing pattern layer 11, and the upper surface of fluorescent ink layer 12 is provided with light oil reservoir 14.Light oil reservoir 14 can be with the fluorescence excitation in Fluorophotometry ink layer 12.Formed in light oil reservoir 14 and the engraved structure 16 corresponding to pattern in 2 D code 3 by laser etching process.When excitation source is irradiated to lid 1 surface, the part that fluorescent ink layer 12 is blocked by light oil reservoir 14 can not be excited, the only fluorescent ink at engraved structure 16 correspondence position can send the light of specific wavelength, thus the fluoroscopic image that fluorescent ink layer 12 is formed at the correspondence position of engraved structure constitutes fluorescence display pattern.By changing the path of laser engraving, the pattern in 2 D code 3 comprising different information can be formed.
When using fluorescence identifying device to detect, the part exciting fluorescent ink layer 12 to be exposed at engraved structure 16 by excitation source sends the light of specific wavelength, make the light of specific wavelength by also imaging through light filter, fluorescence identifying device can obtain the fluorescence display pattern that fluorescent ink layer 12 is formed at the correspondence position of engraved structure, and this fluorescence display pattern is corresponding to the pattern in 2 D code 3 in Fig. 1.Owing to the fluoroscopic image that fluorescence identifying device is obtained only including the bright pattern in 2 D code 3 corresponding to fluorescence display pattern, surrounding at pattern in 2 D code 3 is dark background color, both compare has obvious comparison of light and shade, thus improve the contrast between fluorescence display pattern and background color, the recognition rate when detection of the pattern in 2 D code 3 corresponding to fluorescence display pattern can be increased substantially.
Lid 1 as shown in Figure 6 has three-decker, and including matrix 10 ', the outer surface of matrix 10 ' is coated with the base oil layer doped with fluorescent material, and is provided above, at base oil layer, the light oil reservoir 14 that Fluorophotometry excites；Light oil reservoir 14 can suppress the fluorescence excitation in base oil layer.Formed in light oil reservoir 14 and the engraved structure 16 corresponding to pattern in 2 D code 3 by laser etching process.When excitation source is irradiated to top surface, the part that base oil layer is blocked by light oil reservoir 14 can not be excited, the only fluorescent ink at engraved structure 16 correspondence position can send the light of specific wavelength, thus the fluoroscopic image that the fluorescent material in base oil layer is formed at the correspondence position of engraved structure 16 constitutes fluorescence display pattern.By changing the path of laser engraving, the pattern in 2 D code 3 comprising different information can be formed.
Further, it is also possible to arrange printing pattern layer 11 between base oil layer and light oil reservoir 14, the printed patterns 2 in printing pattern layer 11 can be distributed in the zones of different of lid outer surface with pattern in 2 D code 3.When fluorescence excitation during printing pattern layer 11 suppresses base oil layer, in the fabrication process, first printing pattern layer 11 and light oil reservoir 13 can be set at matrix surface, then in printing pattern layer 11 and light oil reservoir 14, form identical engraved structure 16 by laser etching process.If printing pattern layer 11 can pass through fluorescence, the fluorescence excitation of base oil layer will not be hindered, it is also possible to only light oil reservoir 14 is carried out laser ablation and forms engraved structure.When excitation source is irradiated to top surface, the part that base oil layer is blocked by light oil reservoir 14 can not be excited, the only fluorescent ink at engraved structure 16 correspondence position can send the light of specific wavelength, thus the fluoroscopic image that the fluorescent material in base oil layer is formed at the correspondence position of engraved structure constitutes fluorescence display pattern.
The Cleaning Principle of fluorescence display pattern as shown in Figure 6 is identical with the Cleaning Principle of the fluorescence display pattern shown in Fig. 5, no longer introduces at this.
In sum, endowed structure based on fluorescent ink provided by the utility model, including matrix, and form fluorescence pierced pattern or fluorescence display pattern at matrix outer surface.When detection, by obtaining fluoroscopic image, the dark fluorescence pierced pattern of brightness can be obtained from fluoroscopic image or directly obtain bright fluorescence display pattern.Owing to fluorescence pierced pattern and fluorescence display pattern present comparison of light and shade distinct with background color when detection, thus improve the contrast between fluorescence pierced pattern and fluorescence display pattern and background color, can increase substantially and the pattern in 2 D code corresponding to fluorescence pierced pattern or fluorescence display pattern or the recognition rate of character code pattern.Above-mentioned fluorescence pierced pattern and fluorescence display pattern may be used for the anti-channel conflict inquiry in transport, sales process and inquiry of tracing to the source.Further, above-mentioned pattern is in stealthy state under natural light so that product packaging is more attractive in appearance, and is difficult to, by simple copy, improve imitation difficulty, can more effective anti-counterfeiting.
Above endowed structure based on fluorescent ink provided by the utility model is described in detail.For one of ordinary skill in the art, any obvious change on the premise of without departing substantially from this utility model connotation, it done, all by composition to this utility model infringement of patent right, corresponding legal responsibility will be undertaken.
Claims (16)
1. an endowed structure based on fluorescent ink, it is characterized in that including matrix, it is provided with fluorescent ink layer in the whole region or regional area of described matrix outer surface, being formed with engraved structure in described fluorescent ink layer, the openwork part in the fluoroscopic image that described fluorescent ink layer is corresponding constitutes fluorescence pierced pattern.
2. endowed structure based on fluorescent ink as claimed in claim 1, it is characterised in that:
It is provided with printing pattern layer between described matrix and described fluorescent ink layer.
3. endowed structure based on fluorescent ink as claimed in claim 2, it is characterised in that:
Light oil reservoir it is provided with between described printing pattern layer and described fluorescent ink layer.
4. endowed structure based on fluorescent ink as claimed in claim 1, it is characterised in that:
Surface configuration at described fluorescent ink layer has can be through the light oil reservoir of fluorescence.
5. endowed structure based on fluorescent ink as claimed in claim 4, it is characterised in that:
Described smooth oil reservoir forms identical engraved structure in the position corresponding with described engraved structure.
6. endowed structure based on fluorescent ink as claimed in claim 1, it is characterised in that:
Described fluorescence pierced pattern is pattern in 2 D code or character code pattern, and described character code pattern is made up of letter and/or numeral, point a line or plurality of rows.
7. an endowed structure based on fluorescent ink, it is characterised in that include matrix, is provided with fluorescent ink layer in the whole region or regional area of described matrix outer surface, and the surface configuration at described fluorescent ink layer has the light oil reservoir that Fluorophotometry excites；Wherein, being formed with engraved structure in described smooth oil reservoir, the fluoroscopic image that described fluorescent ink layer is formed at the correspondence position of described engraved structure constitutes fluorescence display pattern.
8. endowed structure based on fluorescent ink as claimed in claim 7, it is characterised in that:
It is provided with printing pattern layer between described matrix and described fluorescent ink layer.
9. endowed structure based on fluorescent ink as claimed in claim 7, it is characterised in that:
Described fluorescence display pattern is pattern in 2 D code or character code pattern, and described character code pattern is made up of letter and/or numeral, point a line or plurality of rows.
10. endowed structure based on fluorescent ink as claimed in any one of claims 1-9 wherein, it is characterised in that:
Described matrix is metallic matrix, and described metallic matrix has overlay film or is coated with base oil.
11. endowed structures based on fluorescent ink as claimed in claim 10, it is characterised in that:
Described matrix is that pop can top cover, pop can body, pop can be tank bottoms or any one in crown plug.
12. 1 kinds of endowed structures based on fluorescent ink, it is characterised in that include matrix, are coated with the base oil layer doped with fluorescent material at described matrix outer surface, and, it is provided above, at described base oil layer, the light oil reservoir that Fluorophotometry excites；Being formed with engraved structure in described smooth oil reservoir, the fluoroscopic image that the fluorescent material in described base oil layer is formed at the correspondence position of described engraved structure constitutes fluorescence display pattern.
13. endowed structures based on fluorescent ink as claimed in claim 12, it is characterised in that:
It is provided with printing pattern layer between described matrix and described smooth oil reservoir.
14. endowed structures based on fluorescent ink as claimed in claim 13, it is characterised in that:
Described printing pattern layer forms identical engraved structure in the position corresponding with described engraved structure.
15. endowed structures based on fluorescent ink as claimed in claim 12, it is characterised in that:
Described fluorescence display pattern is pattern in 2 D code or character code pattern, and described character code pattern is made up of letter and/or numeral, point a line or plurality of rows.
16. endowed structures based on fluorescent ink as claimed in claim 12, it is characterised in that:
Described matrix is metallic matrix；Described matrix is that pop can top cover, pop can body, pop can be tank bottoms or any one in crown plug.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620118728.9U CN205608757U (en) | 2016-02-06 | 2016-02-06 | Coding structure based on fluorescent ink |
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| CN201620118728.9U CN205608757U (en) | 2016-02-06 | 2016-02-06 | Coding structure based on fluorescent ink |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107434098A (en) * | 2016-10-24 | 2017-12-05 | 信码互通（北京）科技有限公司 | Crown plug with gray scale identification code |
| CN108334921A (en) * | 2018-02-28 | 2018-07-27 | 华南理工大学 | It is a kind of can dark positive identification luminous Quick Response Code and preparation method thereof |
| CN111098036A (en) * | 2019-12-31 | 2020-05-05 | 北京赛腾标识系统股份公司 | Code assigning method and system |
| CN113172345A (en) * | 2021-04-29 | 2021-07-27 | 东莞市嘉禧标识有限公司 | Workpiece with two-dimensional code and manufacturing method of two-dimensional code |
-
2016
- 2016-02-06 CN CN201620118728.9U patent/CN205608757U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107434098A (en) * | 2016-10-24 | 2017-12-05 | 信码互通（北京）科技有限公司 | Crown plug with gray scale identification code |
| CN108334921A (en) * | 2018-02-28 | 2018-07-27 | 华南理工大学 | It is a kind of can dark positive identification luminous Quick Response Code and preparation method thereof |
| CN111098036A (en) * | 2019-12-31 | 2020-05-05 | 北京赛腾标识系统股份公司 | Code assigning method and system |
| CN113172345A (en) * | 2021-04-29 | 2021-07-27 | 东莞市嘉禧标识有限公司 | Workpiece with two-dimensional code and manufacturing method of two-dimensional code |
| CN113172345B (en) * | 2021-04-29 | 2022-07-12 | 东莞市嘉禧标识有限公司 | Workpiece with two-dimensional code and manufacturing method of two-dimensional code |
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