A method for preventing misprints in making tinplate milk powder cans

Abstract

The method for preventing misprints in making tinplate milk powder cans of the present invention is to set an anti-misprint mark on each monochrome printing plate, and the position of the anti-misprint mark corresponds to any one or both of the upper roll seal or the lower roll seal of the can body. Since the anti-misprint marks set on each monochrome printing plate corresponding to the same milk powder information mark are the same, but the anti-misprint marks set on each monochrome printing plate corresponding to different milk powder information marks are different, when the monochrome printing plates are all printed on tinplate, it is possible to distinguish whether the printing of the can body is correct at the upper roll seal or the lower roll seal of the can body according to whether the anti-misprint mark is doubled or misplaced. Therefore, it can be quickly identified after the layout misprint occurs on the surface of the can body, and the milk powder can is corrected and remade before it is delivered to customers and the market, thereby improving the accuracy of the surface identification information of the milk powder can and reducing costs.

Description

Technical Field

[0001] This patent relates to the field of packaging container technology, and in particular to a method for preventing misprints in the production of tinplate milk powder cans. Background Art

[0002] At present, the milk powder packaging sold on the market mainly includes metal cans and aluminum foil PE soft packaging. Some milk powder products are also packaged in paper boxes. Metal can packaging has good sealing and long shelf life, and is the preferred packaging form of manufacturers. Filling it with inert gases such as nitrogen or carbon dioxide can extend the shelf life of the product. In addition, metal printing is a special printing method using metal printing materials as the substrate. Metal printing materials have good mechanical properties and processing and forming properties, so metal packaging containers are flexible and can be made into various shapes to meet the packaging needs of different products. In addition, metal printing has the advantages of bright colors, rich layers, and good visual effects.

[0003] Generally, milk powder information labels are set on the surface of milk powder cans to mark the grades, brands, uses, etc. of different milk powders. For example, for metal milk powder cans for infants and young children, based on the standards such as the National Food Safety Standard for Infant Formula Foods (GB10765-2021), the National Food Safety Standard for Older Infant Formula Foods (GB10766-2021), and the National Food Safety Standard for Toddler Formula Foods (GB10767-2021), infant formula milk powder is divided into 1-3 stages: Stage 1 - infant formula milk powder, suitable for babies aged 0-6 months; Stage 2 - older infant formula milk powder, suitable for babies aged 6-12 months; Stage 3 - toddler formula milk powder, suitable for babies aged 12-36 months. These stage information needs to be accurately set on the corresponding milk powder cans. In addition, there are also brand information, production information and other labels that need to be set on the milk powder cans.

[0004] At present, in the existing technology, metal milk powder cans in the industry are usually printed with tinplate, which requires the use of a printing press to mass produce tinplate. The industry mainly uses a flatbed proofing machine to perform multiple cycles of monochrome printing on tinplate. Specifically, the original is first separated into colors, and a monochrome printing plate of each color is produced. The monochrome printing plate has corresponding information such as the segment, age, and brand. Then, the monochrome flatbed proofing machine is manually operated to perform monochrome printing on each color to obtain a complete printed tinplate milk powder can.

[0005] However, monochrome flatbed printing involves many processes and is subject to many human influences, which can easily lead to misprints of different layouts. After a misprint occurs, it is usually difficult to detect and identify. Misprints of the layout information on milk powder cans can cause huge losses to milk powder can manufacturers and milk powder product manufacturers. Summary of the invention

[0006] In order to solve the above problems, the present application provides a method for preventing printing misprints in tinplate milk powder cans, so as to solve the technical problem that the surface identification information of the can body is difficult to identify after the layout misprints occur in the existing milk powder can production process.

[0007] To solve the above problems, the technical solutions provided in the embodiments of the present application are as follows:

[0008] The present invention provides a method for preventing misprinting in the production of tinplate milk powder cans, characterized in that the method is applied to the production of tinplate milk powder cans, the milk powder cans comprising a can body, the can body comprising a can body and a milk powder information label, the can body comprising a middle main body area, an upper roll seal, and a lower roll seal, the upper roll seal is located at the upper end of the can body, the lower roll seal is located at the lower end of the can body, and different milk powder information labels correspond to different can bodies; the method comprises the following steps:

[0009] (1) color separation of the original manuscript of the milk powder information mark to produce monochrome printing plates of required colors, wherein each monochrome printing plate corresponds to the size of the can body, and the position of the milk powder information mark corresponds to the middle main body area;

[0010] (2) an anti-misprint mark is provided on each monochrome printing plate, and the position of the anti-misprint mark corresponds to any one or both of the upper seal or the lower seal of the can body;

[0011] Wherein, the anti-error version marks set on each of the monochrome printing plates corresponding to the same milk powder information marks are the same, and the anti-error version marks set on each of the monochrome printing plates corresponding to the different milk powder information marks are different;

[0012] (3) each of the single-color printing plates is subjected to single-color printing on the tinplate to obtain a complete can body, the milk powder information label is printed on the middle main body area of ​​the can body, and the misprint prevention label is printed on any one or both of the upper roll seal and the lower roll seal;

[0013] (4) Detect the printed anti-misprint mark at the upper seal or the lower seal of the can body: determine whether the anti-misprint mark has a double image or is misplaced. If so, it means that the monochrome printing plate corresponding to the different milk powder information mark was mixed in the printing process, resulting in a misprint error; if not, it means that the printing is correct.

[0014] Optionally, the error-proofing logo set on each of the monochrome printing plates corresponding to the different milk powder information logos is different, including:

[0015] The position of the anti-misprint mark set on each of the monochrome printing plates corresponding to the different milk powder information marks is different.

[0016] Optionally, the error-proofing logo set on each of the monochrome printing plates corresponding to the different milk powder information logos is different, including:

[0017] The shape of the anti-misprint logo set on each of the monochrome printing plates corresponding to the different milk powder information logos is different.

[0018] Optionally, the shape of the anti-misprint mark provided on each of the monochrome printing plates corresponding to the different milk powder information marks is any one of a triangular pattern, a rectangular pattern, a diamond pattern, or a circular pattern.

[0019] Optionally, the anti-misprint mark also includes text information.

[0020] Optionally, the text information of the anti-misprint mark set on each of the monochrome printing plates corresponding to the different milk powder information marks is any one of "1st section 0-6", "2nd section 6-12", and "3rd section 12-36".

[0021] The method for preventing misprinting in the production of tinplate milk powder cans of the present invention is to set an anti-misprinting mark on each monochrome printing plate, and the position of the anti-misprinting mark corresponds to any one or both of the upper roll seal or the lower roll seal of the can body. Since the anti-misprinting mark set on each monochrome printing plate corresponding to the same milk powder information mark is the same, but the anti-misprinting mark set on each monochrome printing plate corresponding to different milk powder information marks is different, therefore, when the monochrome printing plates are all printed on the tinplate, according to whether the anti-misprinting mark is doubled or misplaced, it can be realized at the upper roll seal or the lower roll seal of the can body to distinguish whether the can body printing is correct. Therefore, it can be quickly identified after the layout of the mark information on the surface of the can body is misprinted, and the milk powder can is corrected and remade before being delivered to customers and the market, thereby improving the accuracy of the mark information on the surface of the milk powder can and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] These and other purposes, features and advantages of the present invention will become more apparent after reading the following detailed description of the preferred embodiments and the accompanying drawings. It should be understood that although these embodiments are described separately, their individual features may be combined into other embodiments.

[0023] Figure 1 It is a schematic structural diagram of a milk powder can according to an embodiment of the present invention.

[0024] Figure 2 It is a planar unfolding schematic diagram of the body of a milk powder can according to an embodiment of the present invention.

[0025] Figure 3The present invention is a flow chart of a method for preventing misprints in manufacturing tinplate milk powder cans.

[0026] Figure 4 It is a schematic diagram of the correct printing process of the milk powder can body according to an embodiment of the present invention.

[0027] Figure 5 It is a schematic diagram of a possible implementation method of misprinting during the printing process of the body of a milk powder can in an embodiment of the present invention.

[0028] Figure 6 It is a schematic diagram of another possible implementation of the anti-misprint labeling of the milk powder can according to the embodiment of the present invention.

[0029] Figure 7 It is a schematic diagram of another possible implementation of the anti-misprint labeling of the milk powder can according to the embodiment of the present invention.

[0030] Figure 8 It is a schematic diagram of another possible implementation of the anti-misprint labeling of the milk powder can according to the embodiment of the present invention.

[0031] Fig. 9 It is a schematic diagram of another possible implementation method of the misprint in the printing process of the milk powder can body according to the embodiment of the present invention.

[0032] Fig.10 It is a schematic diagram of another possible implementation of the anti-misprint labeling of the milk powder can according to the embodiment of the present invention. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0034] <First Embodiment>

[0035] Reference Figures 1 to 5 A first specific embodiment of the present invention is described.

[0036] like Figure 1 , Figure 2 As shown, the milk powder can in this embodiment is made of tinplate and includes a can body 1, which includes a can body 2 and a milk powder information label 3. Since the milk powder can is generally cylindrical, the planar development of the can body 2 is a rectangular plane. Specifically, the can body 2 includes a middle main body area 21, an upper roll seal 22, and a lower roll seal 23. The upper roll seal 22 is located at the upper end of the can body 2, and the lower roll seal 23 is located at the lower end of the can body 1. Different milk powder information labels correspond to different can bodies.

[0037] like Figure 3 As shown, this figure is a schematic diagram of the process of a method for preventing misprints in tinplate milk powder cans provided in an embodiment of the present application.

[0038] The present invention provides a method for preventing misprints in manufacturing tinplate milk powder cans, comprising the following steps S101-S104:

[0039] S101: Color separation of the original manuscript corresponding to the milk powder information mark to produce monochrome printing plates of required colors.

[0040] Usually, metal milk powder cans in the current industry are usually printed on tinplate, mainly by multiple cycles of single-color printing on tinplate. Specifically, the milk powder information label 3 can usually include information such as infant milk powder grade, age, brand, production date, address, and different colors.

[0041] First, separate the original corresponding to the milk powder information mark 3 into colors, and make monochrome printing plates of the required colors. The monochrome printing plates have specific marks corresponding to the segment, age, brand, etc. on the milk powder information mark 3. Then operate the monochrome flatbed proofing machine to print monochrome on various colors respectively to obtain a complete printed tinplate milk powder can.

[0042] Each monochrome printing plate corresponds to the size on the can body 2 , and the position of the milk powder information mark corresponds to the middle main body area 21 .

[0043] S102: Setting an anti-misprint mark on each single-color printing plate.

[0044] An anti-misprint mark 4 is provided on each monochrome printing plate, and the position of the anti-misprint mark 4 corresponds to any one or both of the upper seal 22 or the lower seal 23 of the can body 2 .

[0045] Usually, the upper roll seal 22 or the lower roll seal 23 is used to roll seal the top cover or the bottom cover of the metal can during the canning process to achieve the purpose of sealing and improve the moisture-proof and pressure-resistant performance of the milk powder can. In the prior art, the upper roll seal 22 or the lower roll seal 23 does not participate in the printing process of the milk powder information label 3 of the milk powder can. However, during the printing process of the can body 2, the position of the upper roll seal 22 at the top or the lower roll seal 23 at the bottom is obvious and easy to be observed and identified by the operator. Therefore, the present application sets the position of the anti-misprint mark 4 at the upper roll seal 22 or the lower roll seal 23, which is easy to identify, and also makes full use of the space of the tinplate during the printing process, saving costs.

[0046] Specifically, the error-proofing marks 4 set on each monochrome printing plate corresponding to the same milk powder information mark 3 are the same, and the error-proofing marks 4 set on each monochrome printing plate corresponding to different milk powder information marks 3 are different.

[0047] S103: Performing monochrome printing on each monochrome printing plate on the tinplate to obtain the complete can body 1.

[0048] In this way, the milk powder information label 3 will be printed on the middle main area 21 of the can body 2, and correspondingly, the anti-misprint label 4 will be printed on any one or both of the upper roll seal 22 and the lower roll seal 23;

[0049] S104: Detect the printed anti-misprint mark: determine whether the anti-misprint mark has a ghost image or misalignment.

[0050] At the upper roll seal 22 or the lower roll seal 23 of the can body 2, detect the printed anti-misprint mark 4: determine whether there is a ghost or misalignment in the anti-misprint mark. If so, the monochrome printing plate corresponding to the different milk powder information mark 3 was mixed in the printing process, resulting in a misprint error; if not, it means that the printing is correct.

[0051] Specifically, when printing the milk powder information mark 3, if the operator only uses the monochrome printing plate corresponding to the milk powder information mark 3, the same anti-misprint mark 4 is finally obtained on the upper roll seal 22 or the lower roll seal 23, and it is easy to identify that there is no misprint. Figure 4 shown.

[0052] Preferably, the anti-error version mark 4 is a rectangular pattern.

[0053] Specifically, the positions of the anti-misprinting marks 4 set on each monochrome printing plate corresponding to different milk powder information marks 3 are different. When printing the first milk powder information mark 3, if the operator mistakenly takes the monochrome printing plate corresponding to the first milk powder information mark 3 as the monochrome printing plate of another milk powder information mark, the two different anti-misprinting marks 4 obtained on the upper roll seal 22 or the lower roll seal 23 can easily be found. Figure 5 shown.

[0054] Therefore, when there is a misprint in the marking information on the surface of the can, it can be quickly identified, and the milk powder can can be corrected and remade before delivery to customers and the market, thereby improving the accuracy of the marking information on the surface of the milk powder can and reducing costs.

[0055] <Other embodiments>

[0056] Next, refer to Figures 6 to 10 A second embodiment and other embodiments of the present invention are described.

[0057] Other embodiments are realized by improving the shape or position of the anti-misprint mark 4 in the first embodiment, while other structures are the same or similar. Accordingly, the same or similar structures as the first embodiment are indicated by the same reference notes, and the same or similar structures, functions and effects as those in the first embodiment are not described to avoid repeated descriptions.

[0058] A possible implementation manner is that the error-proofing marks provided on each of the monochrome printing plates corresponding to the different milk powder information marks are different, including:

[0059] The shape of the anti-misprint logo set on each of the monochrome printing plates corresponding to the different milk powder information logos is different.

[0060] Preferably, Figure 6 The shape of the anti-misprint mark 41 is a diamond.

[0061] Preferably, Figure 7 The shape of the anti-misprint mark 42 is circular.

[0062] Preferably, Figure 8 The shape of the anti-misprint mark 43 is a triangle.

[0063] The shape of the anti-misprint mark 4 set on each monochrome printing plate corresponding to the different milk powder information marks 3 can be any one of a triangular pattern, a rectangular pattern, a diamond pattern, or a circular pattern.

[0064] Specifically, if the anti-misprint mark set on each monochrome printing plate corresponding to one milk powder information mark 3 is a diamond, and the anti-misprint mark set on each monochrome printing plate corresponding to another milk powder information mark 3 is a triangle, even if the positions of the anti-misprint marks are the same, the misprint situation is very easy to identify, such as Fig. 9 shown.

[0065] A possible implementation manner is that the anti-misprint mark also includes text information.

[0066] Specifically, the text information of the anti-misprint mark set on each of the monochrome printing plates corresponding to the different milk powder information marks is "1 section 0-6" (see Fig.10 (a)) and "Paragraph 2, 6-12" (see Fig.10 (b)) and "3.12-36" ( Fig.10 (c)) Any one of the following, such as Fig.10 shown.

[0067] An anti-misprint mark including text is set up, which can quickly identify the misprint of the mark information on the surface of the can, thereby improving the accuracy of the mark information on the surface of the milk powder can and reducing costs.

[0068] The above description is only a preferred embodiment of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of disclosure involved in the present disclosure is not limited to the technical solutions formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above disclosed concept. For example, the above features are replaced with the technical features with similar functions disclosed in the present disclosure (but not limited to) by each other to form a technical solution.

Claims

1. A method for preventing misprints in tinplate milk powder cans, characterized in that: Applicable to the production of tinplate milk powder cans, the milk powder cans include a can body, the can body includes a can body and a milk powder information label, the can body includes a middle main body area, an upper roll seal, and a lower roll seal, the upper roll seal is located at the upper end of the can body, and the lower roll seal is located at the lower end of the can body, and different milk powder information labels correspond to different can bodies; The method comprises the following steps: (1) color separation of the original manuscript of the milk powder information mark to produce monochrome printing plates of required colors, wherein each monochrome printing plate corresponds to the size of the can body, and the position of the milk powder information mark corresponds to the middle main body area; (2) an anti-misprint mark is provided on each of the monochrome printing plates, and the position of the anti-misprint mark corresponds to any one or both of the upper seal or the lower seal of the can body; Wherein, the anti-error version marks set on each of the monochrome printing plates corresponding to the same milk powder information marks are the same, and the anti-error version marks set on each of the monochrome printing plates corresponding to the different milk powder information marks are different; (3) each of the single-color printing plates is subjected to single-color printing on the tinplate to obtain a complete can body, the milk powder information label is printed on the middle main body area of ​​the can body, and the misprint prevention label is printed on any one or both of the upper roll seal and the lower roll seal; (4) Detect the printed anti-misprint mark at the upper seal or the lower seal of the can body: determine whether the anti-misprint mark has a double image or is misplaced. If so, it means that the monochrome printing plate corresponding to the different milk powder information mark was mixed in the printing process, resulting in a misprint error; if not, it means that the printing is correct.

2. The method for preventing misprint in making tinplate milk powder cans according to claim 1, characterized in that: The error-proofing marks provided on each of the monochrome printing plates corresponding to the different milk powder information marks are different, including: The position of the anti-misprint mark set on each of the monochrome printing plates corresponding to the different milk powder information marks is different.

3. The method for preventing misprint in making tinplate milk powder cans according to claim 1, characterized in that: The error-proofing marks provided on each of the monochrome printing plates corresponding to the different milk powder information marks are different, including: The shape of the anti-misprint logo set on each of the monochrome printing plates corresponding to the different milk powder information logos is different.

4. The method for preventing misprint in making tinplate milk powder cans according to claim 3, characterized in that: The shape of the anti-misprint mark set on each of the monochrome printing plates corresponding to the different milk powder information marks is any one of a triangular pattern, a rectangular pattern, a diamond pattern, or a circular pattern.

5. The method for preventing misprint in making tinplate milk powder cans according to claim 1, characterized in that: The anti-misprint mark also includes text information.

6. The method for preventing misprint in making tinplate milk powder cans according to claim 5, characterized in that: The text information of the anti-misprint mark set on each of the monochrome printing plates corresponding to the different milk powder information marks is any one of "1 section 0-6", "2 sections 6-12", and "3 sections 12-36".

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