WO2018108085A1

WO2018108085A1 - Metal sheet with grayscale identification codes, and cover body and manufacturing method

Info

Publication number: WO2018108085A1
Application number: PCT/CN2017/115761
Authority: WO
Inventors: 吴林; 崔征; 陈磊
Original assignee: 信码互通（北京）科技有限公司
Priority date: 2016-12-12
Filing date: 2017-12-12
Publication date: 2018-06-21

Abstract

A metal sheet (1) with grayscale identification codes (4, 5). The metal sheet (1) comprises a substrate (100) and a photon sensitive ink layer (101) arranged at one side or two sides of the substrate (100), with the photon sensitive ink layer (101) partially or completely covering the surface of the substrate (100). At least one group of grayscale identification codes (4, 5) is formed in the photon sensitive ink layer (101). The metal sheet (1) has a plurality of processing units (2), and each group of grayscale identification codes (4, 5) corresponds to one processing unit (2). The grayscale identification codes (4, 5) are images formed after the appearance of some photon active materials in the photon sensitive ink layer (101) changes, and the grayscale identification codes (4, 5) have a smooth surface and have a grayscale difference from a peripheral region. With regard to the metal sheet (1), during the process of manufacturing the grayscale identification codes (4, 5), only a low-power laser device is used to change the appearance of a photon active component in the photon sensitive ink layer (101), without causing the burning, etching or dropping off of the photon sensitive ink, such that the metal sheet (1) and a cover body (11) obtained by means of the metal sheet (1) have a smooth and beautiful appearance and have a good environmental protection effect.

Description

Metal sheet with gray scale identification code, cover body and manufacturing method

Technical field

The present invention relates to a metal sheet having a gray scale identification code, and to a cover body made of a metal sheet and a method of manufacturing the same.

Background technique

The universal application of the Internet of Things is inseparable from the automatic identification of identification codes (including but not limited to two-dimensional codes or digital codes). The identification code represented by the two-dimensional code has the characteristics of large data storage capacity and good confidentiality, and can be better combined with mobile terminals such as smart phones to form a good interaction and user experience. QR codes are widely used in the current society. In recent years, people have proposed a variety of programs that use QR codes for commodity anti-counterfeiting, point marketing, product traceability, and anti-smuggling.

For example, in the Chinese Patent Publication No. ZL 201520922691.0, a can top cover provided with an identification code on the inside of the cover is disclosed. Wherein, a first information layer is disposed on the inner side of the cover body, and the first information layer is disposed in the closed area. Consumers cannot obtain the information in the first information layer before purchasing and opening the package, thus ensuring the authenticity of the QR code or character code of the participating activities, which can be used for anti-counterfeiting and marketing activities. In addition, a second information layer may be disposed on the outer side of the cover body, and the second information layer may be scanned for identity authentication, and the character code on the inner side of the cover body or the scanned two-dimensional code may be input to perform anti-counterfeiting authentication or participate in marketing activities. The second information layer can also be used for traceability and anti-smuggling queries.

For example, in the Chinese Patent Publication No. ZL 201520425861.4, a bottle cap having a double identification code is disclosed, and a character code information layer is disposed on the top side (ie, the outer surface) of the cover body, which can be used in the production and sales process. The medium-proof anti-smuggling product is used; the QR code information layer is arranged on the inner side (ie, the inner surface) of the cover body, and can be used for participating in activities such as points and lottery after the consumer destroys the package. By setting a double identification code on the above bottle cap, the normal information inquiry requirement in the production and sales process can be satisfied, and the two-dimensional code participating in the activity can be prevented from being damaged or counterfeited during the sales process, and the manufacturer and the consumer can be guaranteed at the same time. Legal rights of the person.

However, in the existing code-finishing process, the surface of the metal sheet is processed by spraying, laser cauterization or etching to form an identification code having a concave-convex structure, and the surface of the processed product is not smooth, affecting the appearance, and is being produced. A lot of smoke will appear in the process, plus the need The use of higher power laser equipment has more energy consumption and has a greater impact on the environment. Therefore, it is necessary to improve the existing product structure and processing technology.

Summary of the invention

The primary technical problem to be solved by the present invention is to provide a metal sheet having a gray scale identification code.

Another technical problem to be solved by the present invention is to provide a cover obtained by processing the above metal sheet.

Another technical problem to be solved by the present invention is to provide a method of manufacturing the above described cover body.

In order to achieve the above object, the present invention adopts the following technical solutions:

According to a first aspect of the embodiments of the present invention, there is provided a metal sheet having a gray scale identification code, the metal sheet comprising a substrate and a photon-sensitive ink layer disposed on one or both sides of the substrate, The photon-sensitive ink layer partially or completely covers a surface of the substrate; at least one set of gray-scale identification codes are formed in the photon-sensitive ink layer, and each set of the gray-scale identification codes includes at least one gray-scale identification code; The metal sheet has a plurality of processing units, and each set of the gray scale identification code corresponds to one processing unit;

The gray scale identification code is an image formed by a change in appearance of a part of the photon active material in the photon-sensitive ink layer, and the surface of the gray scale identification code is smooth and has a gray scale difference from the surrounding area.

Preferably, the photon-sensitive ink layer is exposed and forms the gray scale identification code, or the gray scale identification code is formed in the photon-sensitive ink layer and the photon-sensitive ink layer is covered by the coating.

Preferably, the identification code in the grayscale identification code is any one or more of a two-dimensional code, a digital code, a letter, and a text.

Preferably, the information in the plurality of grayscale identification codes disposed within the same processing unit on both sides of the substrate are different from each other and are associated with each other.

Preferably, the photonic sensitive ink layer is further formed with a decorative image or a trademark image formed by a change in appearance of the partial photonic active material, and the decorative image or the trademark image has a smooth surface and a gray scale difference from the surrounding area.

According to a second aspect of the embodiments of the present invention, there is provided a cover body made of the above metal sheet, the cover body being stamped from the metal sheet, the one side or the double side of the cover body There is the grayscale identification code.

Preferably, the information in the plurality of grayscale identification codes disposed on both sides of the cover body are different from each other and associated with each other.

Preferably, the cover body is a can top cover.

Preferably, the grayscale identification code disposed on the inner side of the cover body is located in an intermediate area of the can top cover and is located in the closed area of the can top cover.

Alternatively, preferably, the cover body is a crown cover, and a gray scale identification code disposed inside the cover body is located at an intermediate position of the crown cover.

Preferably, the cover further comprises any one or more of a decorative image, a trademark image and product information formed by a change in appearance of a part of the photon active component in the photon-sensitive ink layer.

According to a third aspect of the embodiments of the present invention, a method for manufacturing the above cover body includes at least the following steps:

Photon-sensitive ink is coated on one side or both sides of the substrate, and a plurality of processing units of the substrate are separately processed by a laser to form a change in appearance of a portion of the photonic active material in the photon-sensitive ink. Grayscale identification code;

A plurality of processing units of the metal sheet are respectively stamped to obtain a plurality of covers, and the gray scale identification code is provided on one side or both sides of the cover.

Preferably, the method further comprises the following steps:

Applying a primer to the surface of the substrate before applying the photon-sensitive ink on one side or both sides of the substrate;

After coating the photon-sensitive ink on one or both sides of the substrate, a protective coating is applied to the surface of the photon-sensitive ink.

Preferably, the method further comprises the step of: processing the photon-sensitive ink layer outside the cover body by laser to form product information after the cover encapsulation container.

The metal sheet provided by the invention is formed by coating a photon-sensitive ink layer on one side or both sides of the substrate, and processing with a laser with a lower power to form a plurality of gray-scale identification codes having a smooth surface; The unit is stamped to obtain a plurality of covers, such as a can top or a crown cover. In the above metal sheet, in the process of producing the gray scale identification code, since only the appearance of the photon active component in the photon sensitive ink layer is changed, the photon sensitive ink is not burned, etched or peeled off, so that the metal sheet and the metal sheet are The cover obtained from the metal sheet has a flat Sleek and beautiful appearance. Moreover, compared with the existing process of using laser ablation or spraying to create the identification code, after using photon-sensitive ink, a low-power laser device can be used to engrave a better effect pattern, which greatly reduces the cost and improves the engraving speed, and satisfies the online production. The high speed requirements also play a very good environmental protection role. The cover body prepared by the above process is provided with a gray code identification code containing different information on one side or both sides, which can realize one object and one code, and at the same time guarantee the rights of consumers and manufacturers, and is convenient for use in marketing activities. . The grayscale identification code disposed on the inner side of the cover body can be used for anti-counterfeiting traceability and marketing activities, and the grayscale identification code disposed outside the cover body can be used for anti-counterfeiting inquiries.

DRAWINGS

1 is a schematic front view of a metal sheet provided with a plurality of gray scale identification codes;

2 is a schematic view showing the back structure of a metal sheet provided with a plurality of gray scale identification codes;

Figure 3a is a first sectional structural view of the A-A area of Figure 1;

Figure 3b is a second cross-sectional structural view of the A-A area of Figure 1;

Figure 4 is a process flow diagram of a cover having a gray scale identification code;

Figure 5 is a front structural view of a large opening easy-opening cover with a gray scale identification code;

6 is a schematic view showing the back structure of a large opening easy-opening cover having a gray scale identification code;

Figure 7 is a front structural view of a fully open type easy-open cover with a gray scale identification code;

Figure 8 is a schematic view showing the back structure of a fully open type easy-open cover having a gray scale identification code;

Figure 9 is a front view showing the structure of a crown cap having a gray scale identification code;

Figure 10 is a schematic view showing the back structure of a crown cap having a gray scale identification code.

detailed description

The technical content of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

First embodiment

The metal sheet 1 having the gray scale identification code provided by the present invention comprises a plurality of processing units 2, and a plurality of sets of gray scale identification codes are formed on one or both sides of the metal sheet 1, and each set of gray scale identification codes includes at least one Gray scale identification code, each set of gray scale identification codes corresponds to one processing unit 2.

In the embodiment shown in FIGS. 1 and 2, a plurality of first gray scale identification codes 4 and a plurality of print patterns 3 are provided on the front surface of the metal sheet 1, and a plurality of sheets are provided on the back surface of the metal sheet 1. a second gray scale identification code 5, wherein one print pattern 3, one first gray scale identification code 4 and one second gray scale identification code 5 are disposed within the range of each processing unit 2, and Moreover, the information in the pair of gray scale identification codes (including the first gray scale identification code 4 and the second gray scale identification code 5) set on the front and back sides of the same processing unit 2 are different and associated with each other. The first grayscale identification code 4 and the second grayscale identification code 5 may be any one or more combinations of a two-dimensional code, a digital code, a letter, and a text, respectively. The printed patterns 3 provided in the regions corresponding to each of the processing units 2 may be the same according to design requirements. In the embodiment not shown, the gradation identification code may be provided only on one side of the metal sheet 1.

The metal sheet has a structure as shown in Fig. 3a or a structure as shown in Fig. 3b. In Figs. 3a and 3b, the cross-sectional structure of one processing unit 2 is respectively exemplified, and the rest of the processing unit 2 has the same structure. Specifically, the metal sheet 1 includes at least a substrate 100 and a photon-sensitive ink layer 101 disposed on both sides of the substrate 100. Wherein, the photon-sensitive ink layer disposed on the front surface of the substrate 100 is formed with a first gray scale identification code 4 (corresponding to the portion 104 in which appearance changes occur in FIGS. 3a and 3b) and a print pattern 3 (corresponding to FIGS. 3a and 3b). The portion 105 in which the appearance change occurs, the photon-sensitive ink layer disposed on the back surface of the substrate 100 is formed with a second gray scale identification code 5 (corresponding to the portion 102 in which appearance changes occur in Figs. 3a and 3b). The photon-sensitive ink layer 101 disposed on both sides of the substrate 100 may be directly exposed (as shown in FIG. 3a), or a gray-scale identification code may be formed in the photo-sensitive ink layer 101 disposed on both sides of the substrate 100 and be transparent. Material 103 is covered (as shown in Figure 3b), for example covered by varnish. Of course, in order to match the design, other printed pattern layers or sprayed layers (not shown) may be disposed on the front side of the metal sheet, or a logo pattern or a logo pattern made by a conventional process may be disposed on the front side of the metal sheet. When the front side of the metal sheet is provided with both the photon-sensitive ink layer and the transparent material for covering, the laser code can be performed using a low-power laser device before the additional transparent material or after the additional transparent material.

The photon-sensitive ink layer 101 disposed on both sides of the substrate 100 is formed by coating a photon-sensitive ink containing a photonic active material on the surface of the substrate 100. The photon-sensitive ink layer 101 may be wholly or partially covered according to product requirements. The surface of the material 100. Since the photon-sensitive ink layer 101 contains a photonic active material that is sensitive to laser light, when the laser light strikes the photon-sensitive ink layer 101 including the photon active component, the photon active component thereof changes in a visually perceptible manner, thereby causing The photon-sensitive ink undergoes a change in appearance. Preferably, the change in appearance is a change in color, such as a change from a transparent or light color to an opaque or darker color. In other words, the gradation identification code according to the present invention refers to an image formed by a gradation change in a broad sense, so that a gradation difference or a chromatic aberration is formed with the original color, and The color of the identification code formed is limited to gray. In practice, it can be formed into other colors such as black or color.

In the present invention, the appearance of the photon active component can be changed by using a laser having a lower power, so that the appearance of a part of the photon active material 102 in the photon-sensitive ink layer is changed to form a smooth surface but a gray scale difference from the surrounding area. The image, and hardly burns, etches or flakes the photon-sensitive ink. For example, a CO2 infrared laser or a near-infrared laser with a power of less than 10 W is used to produce a pure black or color laser image. The above images broadly include decorations (such as logos, pictures or aesthetic markers, such as the printed pattern 3 shown in Figure 1) or information (such as text or two-dimensional encoding, such as the character code 4 shown in Figure 1 and Figure 2). QR code 5). For example, on the front side of the metal sheet, a decorative image or a trademark image (such as the printed pattern 3 shown in FIG. 1) may be formed by subjecting a part of the photonic active material in the photon-sensitive ink layer to a change in appearance, and the decorative image or the surface of the decorative image may be formed. Smooth and have grayscale differences from surrounding areas. Compared with the existing process of using laser ablation or spraying to create identification code, after using photon-sensitive ink, a low-power laser device can be used to engrave a better effect pattern, which greatly reduces the cost (ie, the cost without ink) and greatly increases The engraving speed meets the high-speed requirements of online production and also plays a very good environmental protection role.

The plurality of first gray scale identification codes 4 disposed on the front surface of the metal sheet 1 may be the character code shown in FIG. 1 , or may be other one-dimensional barcodes or two-dimensional codes not shown, and may be other examples. An identifiable image consisting of any one or more of numbers, letters, and text. The information in the first gradation identification code 4 provided in each processing unit 2 on the front side of the metal sheet 1 is different, thereby constituting the identification code of the cover obtained after stamping. The second gray scale identification code 5 disposed on the back surface of the metal sheet 1 may be a two-dimensional code as shown in FIG. 2, or may be a character code or an identifiable one or more of numbers, letters, and characters. image. The information in the second gray scale identification code 5 provided in each processing unit 2 on the back side of the metal sheet 1 is different, thereby constituting the identification code of the cover obtained after stamping, realizing one object and one code.

In this embodiment, the first gray scale identification code 4 and the second gray scale identification code 5 disposed in the same processing unit 2 are respectively illustrated by using the character code and the two-dimensional code as an example, and are disposed in the same processing unit. The information in the paired gray scale identification codes (including the first gray scale identification code 4 and the second gray scale identification code 5) in 2 are different from each other and are associated with each other in the database. By setting the grayscale identification code on the front and back sides of the same processing unit 2, the normal information inquiry requirements in the production and sales process can be satisfied, and the identification code of the participating activities can be prevented from being sold. The process is damaged or counterfeited, and the legitimate rights and interests of manufacturers and consumers can be guaranteed at the same time. The specific use for the two gray scale identification codes will be specifically described in the following description of the cover obtained by stamping a metal sheet.

In this embodiment, only a gray scale identification code is set on the front side and the back side of a processing unit range as an example. When actually designing the product, it can be on one side or both sides of each processing unit as needed. A plurality of grayscale identification codes are respectively set, and a plurality of grayscale identification codes are set as a set of grayscale identification codes on the surface of the substrate. For example, in the fifth embodiment, two gray scale identification codes are provided on the front surface of the crown cover, including one character code and one DM two-dimensional code. Therefore, the above embodiments and the accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention.

Second embodiment

The present invention also provides a method of manufacturing a cover body processed from a metal sheet having a gray scale identification code. Specifically, the method includes the steps shown in FIG. 4: first, the metal sheet is subjected to a heat treatment or a surface treatment, etc., so that different metal sheets satisfy the same quality and appearance requirements, and then the sheet of the metal sheet is required as needed. Photon-sensitive ink is coated on the surface or both sides and dried; processing is performed in each processing unit using a laser to change the appearance of a part of the photon active components in the photon-sensitive ink to form an image having a difference in gray scale, that is, obtaining the present invention A metal sheet with a gray scale identification code is provided. Each of the processing units of the metal sheet is then stamped to obtain a plurality of covers, each of which has a gray scale identification code on one or both sides.

The manufacturing method may further include other steps depending on the product requirements, for example, applying a primer to the surface of the substrate before coating the photonic sensitive ink on one side or both sides of the substrate; for example, on one side of the substrate or After coating the photon-sensitive ink on both sides, a protective coating is applied to the surface of the photon-sensitive ink. It may also include printing a decorative pattern or an additional metal tab or the like in each of the processing units prior to the stamping step. Since the photon active component in the photon sensitive ink is sensitive to laser light, the photon sensitive ink can be processed to obtain a gray scale identification code before or after the transparent protective coating is applied.

Depending on the stamping process, different types of covers can be obtained to form different products. For example, a crown cap or a can top can be punched out.

The specific processing positions corresponding to the first gray scale identification code 4 and the second gray scale identification code 5 provided in each processing unit 2 on the metal sheet 1 also differ according to the requirements of the final product. For example, for a fully open type easy-open cover, a second grayscale identification code disposed inside the cover body 5 is located in the middle area of the processing unit 2; for the large opening can top, in order to simplify the production process, the second gray scale identification code 5 disposed inside the cover body may be disposed in the middle area of the processing unit 2 and the top of the can top The closed area covers the intermediate position of the processing unit 2. The structure of the large-open can top can be referred to the third embodiment. The description of the specific structure can also be found in the Chinese patent application CN201620526986.0. For the crown cap, the second gray scale identification code 5 disposed inside the cover body may be located at an intermediate position of the processing unit 2. The gray scale identification code disposed on the front side of the cover body can be set at any position on the surface as needed. In addition, a gray scale identification code may be set at a position corresponding to the crown cap skirt of the processing unit.

In addition, after the container is packaged using the above-mentioned cover body, the photon-sensitive ink layer on the outside of the cover body may be processed by laser to form product information: for example, a production lot number, a production date, and a manufacturer code number.

Next, the application of the cover obtained in the second embodiment will be described in detail in the third embodiment, the fourth embodiment, and the fifth embodiment, respectively, in conjunction with a specific cover structure.

Third embodiment

The large opening easy-opening cover as shown in FIGS. 5 and 6 includes a cover body 11 and a pull ring 13, wherein the cover body 11 is stamped from a metal sheet. An opening region 12 is formed on the lid body 11 by processing the score line 10, and a tab 13 is provided on the opening region 12. The narrower end of the tab 13 is riveted to the region of the opening region 12 near the edge of the cover 11 by the rivet 14, and the narrow end of the tab 13 and the upper end of the opening region 12 (i.e., the opening region 12 is adjacent to the edge of the edge of the cover 11) The score line 10) is aligned. When the pull-tab top cover is opened without using the tab 13, the tab 13 is substantially parallel to the cover 11, and when the end of the tab 13 is lifted and the tab 13 is pulled by the hollow region 15 of the tab 13, the score line 10 is broken. Thereby, an opening for the outflow of the liquid in the tank is formed on the lid body 11.

In this embodiment, a first gray scale identification code 16 is disposed at a position corresponding to the hollow region 15 of the tab 13 on the front surface of the cover body 11, and a second gray scale identification code 17 is disposed at a central portion of the back surface of the cover body 11. Also, the opening area 12 includes the center position of the cover body 11, and the area of the opening area 12 corresponding to the center position of the cover body 11 is large enough to set the second gray scale identification code 17. In addition, for the can top cover of different calibers, the first gray scale identification code 16 disposed on the front surface of the cover body 11 can also be disposed at any position on the front surface of the cover body that is not blocked by the tab 13 , and the first gray scale identification code 16 can be located. The hollow region 15 inside the pull ring 13 is also Any area outside the tab 13 (including the inside of the front opening area 12 of the cover and any position outside the opening area 12)

In the can top cover, the cover 11 has a structure as shown in Fig. 3a or as shown in Fig. 3b. The first gray scale identification code 16 and the second gray scale identification code 17 disposed on both sides of the cover 11 are respectively formed by an appearance change of a part of the photon active material in the photon sensitive ink layer, and the surface is smooth and surrounding area Has a grayscale difference. The information in the pair of grayscale identification codes disposed on both sides of the cover 11 are different from each other and associated with each other.

The grayscale identification code disposed on the inner side and the outer side of the cover body may be the two-dimensional code shown in FIG. 5 and FIG. 6, or may be any one or more of a character code or other unillustrated numbers, letters, and characters. A recognizable image of the composition. The first gray scale identification code 16 disposed on the front side of each cover body 11 is at a position outside the cover body that is not blocked by the tab 13 , and is in an identifiable state during product transportation and sale, and thus can be used for anti-smuggling inspection or Anti-counterfeiting traceability and other uses, easy for consumers or sales personnel to obtain. It is also possible to perform identity authentication by scanning the first grayscale identification code 16, and input the character code on the inside of the can top cover or scan the two-dimensional code to perform anti-counterfeiting authentication or participate in marketing activities. The second gray scale identification code 17 disposed on the back side (ie, the inner side) of the opening area 12 can ensure that the second gray scale identification code 17 is not damaged during transportation and sales, ensuring the integrity of the second gray scale identification code 17. . Moreover, the second gray scale identification code 17 disposed inside the cover body 11 cannot be obtained before the opening area 12 is torn or broken along the score line 10, and therefore, only the consumer who purchases the product can obtain the second gray scale. Identification code 17. The second grayscale identification code 17 can be used in a marketing campaign or as an identification code for anti-forgery traceability. The information in the second gray scale identification code 17 disposed at the center of the back surface of each cover body 11 is different, and uniquely corresponds to a can top cover, thereby constituting the identification code of the product, realizing one object and one code.

Fourth embodiment

A fully open type easy-open cover as shown in FIGS. 7 and 8 includes a cover frame 21 and a closure piece 22. Wherein, the cover frame 21 and the closing piece 22 are stamped from a metal sheet, and a score line 20 is provided between the closing piece 22 and the cover frame 21, and the closing piece 22 and the cover frame 21 are realized by the tearing score line 20. Separation. A security edge is preferably provided in the area of the cover bezel 21 near the score line. The wider end of the pull ring 23 is provided with a pull hole 25 which is opposite to the center position of the cover body (ie, the center position of the closing piece 22), and the narrow end of the pull ring 23 is riveted by the rivet 24 to the edge of the closing piece 22 near the edge. The area of the front end of the tab 23 is aligned with the score line 20, Used to break the score line 20. By lifting the tab 23, the score line 20 can be torn; then the pull ring 23 is pulled through the pull hole 25, the score line 20 can be torn open, the closure piece 22 is separated from the safety edge, and the easy-open cover is opened.

As shown in FIG. 7 and FIG. 8, the full-open type easy-opening cover is provided with gray scale identification codes on the front and back sides of the closing piece 22, respectively, in the outer side of the closing piece 22 (ie, the front side shown in FIG. 7). A first gray scale identification code 26 is provided, and a second gray scale identification code 27 is provided on the inner side of the closing sheet 22 (i.e., the back surface shown in FIG. 8). The closure flap 22 has a relatively large area that is sized to provide a plurality of gray scale identification codes having an area between about 4*4 mm2 and 10*10 mm2. The first gray scale identification code 26 may be disposed at any position where the front surface of the closure sheet 22 is not covered by the tab 23, when only a single gray scale identification code is provided on the front side of the closure sheet 22, particularly on the front side of the closure sheet 22. The center position is optimal. Preferably, the second gray scale identification code 27 is disposed at any position where the back surface of the closure sheet 22 is not covered by the score line, and particularly the center position of the closure sheet 22 is optimal. In the fully open type easy-opening cover, by providing the second gray scale identification code 27 at the center position of the closing piece 22 and providing the riveting point of the tab 23 in the vicinity of the edge of the closing piece 22, the closing piece 22 can be avoided. The second gray scale identification code 27 provided on the back surface of the closing piece 22 is broken during the process of setting the tab 23.

In a fully open pull-tab, the closure flap 22 has a configuration as shown in Figure 3a or Figure 3b. The first gray scale identification code 26 and the second gray scale identification code 27 disposed on both sides of the closing sheet 21 are respectively formed by an appearance change of a part of the photon active material in the photon sensitive ink layer, and the surface is smooth and surrounding area Has a grayscale difference. The information in the pair of gray scale identification codes disposed on both sides of the closing sheet 21 are different from each other and associated with each other.

The grayscale identification code disposed on the inner side and the outer side of the closing piece may be the two-dimensional code shown in FIG. 7, or may be the character code shown in FIG. 8, or may be any other of the numbers, letters, and characters not illustrated. One or more identifiable images. The information in the second gray scale identification code 27 disposed at the center of the back surface of each of the closing sheets 22 is different, and uniquely corresponds to a fully open type easy-open cover, thereby constituting the identification code of the product, realizing one object code. The first gray scale identification code 26 is located at a position outside the closure sheet that is not blocked by the tab 23, and is in an identifiable state during product transportation and sale, and thus can be used for anti-smuggling inspection or anti-counterfeiting source, etc., for consumers or Sales staff get. In addition, the first gray level identification code 26 can be scanned for identity authentication, and the character code inside the fully open type easy-open cover or the scanned two-dimensional code can be input for anti-counterfeiting authentication or participation in marketing activities. Set inside the closing piece 22 The second gray scale identification code 27 ensures that the second gray scale identification code 27 is not destroyed during transportation and sales, ensuring the integrity of the second gray scale identification code 27. Moreover, the second gray scale identification code 27 disposed inside the closure sheet 22 cannot be obtained before the closure sheet 22 is torn or broken along the score line 20, and therefore, only the consumer who purchased the product can obtain the second gray scale. Identification code 27. The second grayscale identification code 27 can be used in a marketing campaign or as an identification code for anti-forgery traceability.

Fifth embodiment

The crown cap shown in Figs. 9 and 10 can be directly obtained by stamping the metal sheet in the first embodiment. As shown in FIGS. 9 and 10, the structure of the crown cap includes a circular top portion 31 and a skirt 32 integrally formed with the top portion 31 in a photon-sensitive ink layer disposed on the outer surface of the top portion 31 (ie, the front surface of the crown cap). Two first gray

scale identification codes

33 and 34 are formed, and a second gray scale identification code 35 is formed in the photon sensitive ink layer disposed on the inner side of the top portion 31 (ie, the back surface of the crown cover), and is also disposed inside the top portion 31. There is a sealed injection molded gasket 33 of a silicone material, and the upper surface of the sealed injection molded gasket 33 is adhered to the surface of the photonic sensitive ink layer provided inside the top portion 31 by a glue layer.

Specifically, the top 31 of the crown cap has a structure similar to that of FIGS. 3a and 3b, and the first gray

scale identification codes

33, 34 and the second gray scale identification code 35 disposed on both sides of the crown cover are respectively photon-sensitive inks. The image formed by the partial change of the photonic active material in the layer has a smooth surface and a gray scale difference from the surrounding area. The information in the paired grayscale identification codes disposed on both sides of the crown cap are different from each other and associated with each other. Further, in an embodiment not shown, a gray scale identification code or a gray scale pattern may be provided on the skirt 32.

The first

grayscale identification code

33, 34 and the second grayscale identification code 35 disposed on both sides of the top of the crown cap may be the two-dimensional code shown in FIG. 9 and FIG. 10, or may be the character code shown in FIG. It may also be other identifiable images consisting of any one or more of numbers, letters, and characters. The first

grayscale identification codes

33 and 34 are in a bare position outside the crown cap, which is identifiable during product transportation and sales, and thus can be used for anti-smuggling inspection or anti-counterfeiting source, etc., for the convenience of consumers or sales personnel. . It is also possible to perform identity authentication by scanning the first grayscale identification code 33, and input the character code on the inner side of the crown cover or scan the two-dimensional code to perform anti-counterfeiting authentication or participate in marketing activities. The second grayscale identification code 35 is not corrupted during shipping and shipping, ensuring the integrity of the second grayscale identification code 35. And, the second grayscale identification code 35 disposed on the back of the crown cover is not removed before the crown cap is removed from the bottle mouth. The method is obtained, so that only the consumer who purchased the product can obtain the second grayscale identification code 35. The second grayscale identification code 35 can be used in a marketing campaign or as an identification code for anti-forgery traceability. The information in the second grayscale identification code 35 disposed on the back of each crown cover is different, and uniquely corresponds to a crown cover, thereby constituting the identification code of the product, realizing one object and one code.

The cover body processed by the metal sheet having the gray scale identification code provided by the present invention is exemplified above by three specific covers. It should be noted that, in the above three embodiments, the first gray scale identifier and the second gray scale identifier code are respectively exemplified by the two-dimensional code and the character code, but the first gray scale identification code and the second are not excluded. Grayscale identification codes can also be constructed using other forms of characters, numbers, characters, and the like. Also, the first gray scale identification code and the second gray scale identification code may be disposed at different processing positions than those provided in the above three embodiments.

In summary, the metal sheet with the gray scale identification code provided by the present invention is coated on the one side or both sides of the substrate by using a photon sensitive ink layer and processed by using a laser with a low power to form a smooth surface. A plurality of sets of gray scale identification codes; each set of gray scale identification codes corresponds to one processing unit; and then multiple stamping bodies are respectively stamped to obtain a plurality of cover bodies. In the process of fabricating the gray scale identification code, the above metal sheet does not change the appearance of the photon active component in the photon sensitive ink layer, and does not cause the photon sensitive ink to burn, etch or fall off, so that the metal sheet and the metal are made. The cover obtained from the sheet has a smooth and beautiful appearance. Moreover, compared with the existing process of using laser ablation or spraying to create an identification code, after using photon-sensitive ink, a low-power laser device can be used to engrave a better effect pattern, which greatly reduces the cost and greatly improves the engraving speed and meets the online The high-speed requirements for production also play a very good role in environmental protection. The cover body obtained by the above process is provided with a gray-scale identification code containing different information on one side or both sides, thereby realizing one object and one code, and simultaneously guaranteeing the rights of consumers and manufacturers, and facilitating in marketing activities. use. The grayscale identification code disposed on the inner side of the cover body can be used for anti-counterfeiting traceability and marketing activities, and the grayscale identification code disposed outside the cover body can be used for anti-counterfeiting inquiries.

The metal sheet, the lid body, and the manufacturing method having the gradation identification code provided by the present invention have been described in detail above. Any obvious changes made to the present invention without departing from the spirit of the invention will constitute an infringement of the patent right of the present invention and will bear corresponding legal liabilities.

Claims

A metal sheet having a gray scale identification code, characterized in that:

The metal sheet comprises a substrate and a photon-sensitive ink layer disposed on one or both sides of the substrate, the photon-sensitive ink layer partially or completely covering a surface of the substrate; the photon-sensitive ink layer Forming at least one set of grayscale identification codes; each set of the grayscale identification codes includes at least one grayscale identification code; the metal sheet has a plurality of processing units, and each set of the grayscale identification codes corresponds to one processing unit;

The gray scale identification code is an image formed by a change in appearance of a part of the photon active material in the photon-sensitive ink layer, and the surface of the gray scale identification code is smooth and has a gray scale difference from the surrounding area.
A metal sheet having a gray scale identification code according to claim 1, wherein:

The photon-sensitive ink layer is exposed and forms the gray scale identification code, or the gray scale identification code is formed in the photon-sensitive ink layer and the photon-sensitive ink layer is covered by the coating.
A metal sheet having a gray scale identification code according to claim 1, wherein:

The identification code in the grayscale identification code is any one or more of a two-dimensional code, a digital code, a letter, and a text.
A metal sheet having a gray scale identification code according to claim 1, wherein:

The information in the plurality of grayscale identification codes disposed within the same processing unit on both sides of the substrate is different from each other and associated with each other.
A metal sheet having a gray scale identification code according to claim 1, wherein:

A decorative image or a trademark image formed by a change in appearance of a portion of the photonic active material is also formed in the photon-sensitive ink layer, and the decorative image or the trademark image has a smooth surface and a gray scale difference from the surrounding region.
A cover made of the metal sheet according to claim 1, wherein:

The cover body is stamped from the metal sheet, and the gray scale identification code is provided on one side or both sides of the cover body.
The cover of claim 6 wherein:

The cover is a can top.
The cover of claim 7 wherein:

A grayscale identification code disposed on the inside of the cover is located in an intermediate portion of the can top cover and in an enclosed area of the can top.
The cover of claim 6 wherein:

The cover is a crown cover.
The cover of claim 6 wherein:

The information in the plurality of grayscale identification codes disposed on both sides of the cover body are different from each other and associated with each other.
The cover of claim 6 wherein:

The cover further includes any one or more of a decorative image, a trademark image, and product information formed by a change in appearance of a portion of the photon active component in the photon-sensitive ink layer.
A method of manufacturing a cover according to claim 6, comprising the steps of:

Photon-sensitive ink is coated on one side or both sides of the substrate, and a plurality of processing units of the substrate are separately processed by laser to make a partial change of photonic active material in the photon-sensitive ink to form a gray scale. Identification code;

A plurality of processing units of the metal sheet are respectively stamped to obtain a plurality of covers, and the gray scale identification code is provided on one side or both sides of the cover.
The manufacturing method according to claim 12, further comprising the steps of:

Applying a primer to the surface of the substrate before applying the photon-sensitive ink on one side or both sides of the substrate;

After coating the photon-sensitive ink on one or both sides of the substrate, a protective coating is applied to the surface of the photon-sensitive ink.
The manufacturing method according to claim 12, further comprising the steps of:

After the cover encloses the container, the photon-sensitive ink layer on the outside of the cover is processed by laser to form product information.