Inclined line net type printing gravure
Through the printing gravure technology that tilts and optimizes the shape of the mesh, the problems of high solvent usage and environmental pollution in the prior art are solved, and efficient ink transfer and low-energy-consuming printing process are achieved, which is suitable for printing of fine text.
Patent Information
- Application Number
- CN202420009625.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-03
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-01-03
Smart Images
Figure CN222179060U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of tobacco packaging printing, and in particular to a printing gravure with inclined line mesh. Background Art
[0002] In the existing printing process, in order to improve the transferability of ink, a certain amount of solvent is added to the ink to reduce the viscosity of the ink and increase the fluidity. The main components of the solvent are volatile organic compounds such as n-propyl acetate, ethyl acetate, and ethanol. After the printed matter is dried, the solvent will evaporate and emit, causing certain pollution.
[0003] At present, gravure printing in the market is mainly suitable for the production of large quantities of packaging and printing products. The printing plate cylinders used generally use electronic engraving technology or laser concave technology to make the gravure surface mesh. At the same time, a large amount of solvents such as n-propyl ester, butyl ester, ethyl acetate, etc. need to be added to the ink as diluents during the production process to increase the amount of ink transfer during the production process. At present, the industry generally produces gravure fine text mesh types. Regardless of how the parameters of the above two types of traditional engraving processes are adjusted, the viscosity of the ink is in the production range of 12-14". After printing, the products need to be dried in a hot air oven, and the various solvents added will be volatilized and discharged, which increases certain environmental pollution.
[0004] In summary, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Utility Model Content
[0005] The purpose of the embodiments of the present application is to provide a printing gravure with inclined lines, which can reduce the amount of solvent used while ensuring normal transfer of ink.
[0006] The present application provides a printing gravure of an inclined line mesh type, comprising a panel and a plurality of single cells arranged on the panel; each of the single cells is recessed downward to a predetermined depth, and each of the single cells is arranged inclined.
[0007] In an practicable manner, the angle between the axis of the single cell and the vertical direction is 30-60°.
[0008] In an operative manner, the depth of the single cell ranges from 12 μm to 30 μm.
[0009] In an practicable manner, the wall thickness between two adjacent single cells is 8 μm-15 μm.
[0010] In an practicable manner, the single cell has a screen value of 108 μm-215 μm.
[0011] In an practicable manner, the longitudinal section of the single cell in the length direction is a U-shaped section with an opening at the top.
[0012] In an practicable manner, the longitudinal section of the single cell in the width direction is a U-shaped section with an upper opening.
[0013] In an practicable manner, the longitudinal section of the single cell in the width direction is a semicircular section with an upper opening.
[0014] In an practicable manner, the screen line count range is 50L / cm-100L / cm.
[0015] Compared with the prior art, the beneficial effects of this application are:
[0016] In the technical solution of the present application, a printing gravure with inclined line mesh is provided, and the length of the single mesh cell is increased by tilting the single mesh cell to ensure the ink holding capacity of the single mesh cell, and the depth of the single mesh cell can be reduced to ensure the ink transfer efficiency. It is suitable for printing fine text, greatly reduces the addition of solvents in the printing production process, reduces the emission of volatile organic compounds in the solvent, improves product safety, reduces air pollution, and has high social benefits.
[0017] The present application is applicable to various gravure printing methods including sheet-fed gravure printing and online rotary gravure printing. The present application solves the problem of large amounts of solvents used in the original gravure printing of fine text, and the maximum printing speed of the provided gravure printing can reach 220 meters per minute. The present application obtains a gravure printing by changing the shape and arrangement of the cells, setting different dot values according to the specific text, and arranging them evenly.
[0018] The present application increases the length of a single cell by arranging the cell at an angle, and can use high-viscosity ink for printing. The setting of the inclined single cell improves the fluidity of the ink, solving the problem of poor fluidity of the ink in the cells of the printing plate made by traditional electrocarving or laser etching methods. Since the ink has high fluidity, there is no need to add a large amount of slow-drying solvent during the production process, further reducing the use and emission of solvents. The addition of solvents in the production process is greatly reduced, and the environmental emission of VOCs is also reduced. The viscosity of the ink is increased from the original 12-14" range to the 16-20" range.
[0019] The present invention reduces the ink consumption and production cost by reducing the depth of a single cell. At the same time, since the ink layer is thin, the energy consumption for drying the ink layer during the production process can also be greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural schematic diagram of a printing gravure of an inclined line mesh type according to an embodiment of the utility model.
[0021] Figure 2 It is a three-dimensional structural schematic diagram of a single cell in a printing gravure of an inclined line mesh type according to an embodiment of the utility model.
[0022] Figure 3 It is a longitudinal cross-sectional view of a single cell in the length direction of the printing gravure of the inclined line screen type according to an embodiment of the utility model.
[0023] Figure 4 It is a longitudinal cross-sectional view in the width direction of a single cell in the inclined line screen printing gravure of an embodiment of the utility model.
[0024] The reference numerals are described as follows:
[0025] 1. Single cell; 2. Panel. DETAILED DESCRIPTION
[0026] The following is a further detailed description of the specific implementations of the present invention in conjunction with the accompanying drawings. These implementations are only used to illustrate the present invention, but not to limit the present invention.
[0027] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0029] In addition, in the description of the present invention, unless otherwise specified, “plurality” means two or more.
[0030] See also Figures 1 to 3The present application provides a printing gravure of an inclined line mesh type, comprising: a panel 2 and a plurality of single cells 1 arranged according to predetermined requirements on the panel 2. Each of the single cells 1 is recessed downward to a predetermined depth, and each of the single cells 1 is arranged obliquely. Single cells 1 of different lengths can be arranged according to the thickness of the text to be printed. By arranging the single cells 1 obliquely, the arrangement length of the single cells 1 can be increased compared to the horizontal arrangement, thereby increasing the ink holding capacity in each single cell 1. And by arranging the single cells 1 obliquely, the transfer effect of the ink can be optimized, thereby achieving the reduction of the amount of solvent used under the premise of ensuring the printing effect.
[0031] It should be noted that the printing gravure is suitable for text lines of 0.05mm-2mm.
[0032] In an practicable manner, the angle between the axis of the single cell 1 and the vertical direction is 30-60°.
[0033] It should be noted that if Figure 1 As shown, the single cell 1 in this embodiment has an inclination angle of 45°, which increases the arrangement length of the single cell 1 and thus increases the ink holding capacity in each single cell 1 .
[0034] In an practicable manner, the depth h of the single cell 1 ranges from 12 μm to 30 μm.
[0035] It should be noted that if Figure 3 As shown, the depth h of the single cell 1 in this embodiment is 30 μm. In the traditional printing gravure, the cell depth at the dot is 30 μm-60 μm. By reducing the cell depth of the printing plate dot, the ink consumption can be reduced and the production cost can be reduced. At the same time, since the ink layer is thinner, the energy consumption for drying the ink layer during the production process can also be greatly reduced.
[0036] In one practicable manner, if Figure 1 As shown, the wall value a between two adjacent single cells 1 is 8 μm-15 μm.
[0037] In one practicable manner, if Figure 1 As shown, the dot value c of the single cell 1 is 108 μm-215 μm.
[0038] In an practicable manner, the inner wall of the single cell 1 is smooth. By setting the inner wall of the single cell 1 to be smooth, the ink transfer effect is ensured.
[0039] In one practicable manner, if Figure 3 As shown, the longitudinal section of the single cell 1 in the length direction is a U-shaped section with an upper opening.
[0040] In an practicable manner, the longitudinal section of the single cell 1 in the width direction is a U-shaped section with an upper opening.
[0041] Specifically, Figure 4 As shown, the longitudinal section of the single cell 1 in the width direction in this embodiment is a semicircular section with an upper opening. Under the premise of ensuring the ink capacity, the ink transfer rate is improved to avoid ink residue in the cell and affect the printing effect.
[0042] In an practicable manner, the screen count range of the present application is 50L / cm-100L / cm.
[0043] In summary, the present application provides a printing gravure with inclined lines, which is suitable for various gravure printing methods including sheet-fed gravure printing and online rotary gravure printing. The present application solves the problem of large amounts of solvents used in the original gravure for fine text, and the maximum printing speed of the provided printing gravure can reach 220 meters per minute. The present application obtains a printing gravure by changing the shape and arrangement of the mesh cells, setting different dot values according to the specific text, and arranging them evenly.
[0044] By arranging the single cell 1 at an angle, the length of the single cell 1 is increased, and high-viscosity ink can be used for printing. By setting the inclined single cell 1, the ink fluidity is improved, which solves the problem of poor ink fluidity in the cell of the printing plate made by traditional electrocarving or laser etching. Since the ink has high fluidity, it is no longer necessary to add a large amount of slow-drying solvent during the production process, further reducing the use and emission of solvents. The addition of solvents during the production process is greatly reduced, and the environmental emission of VOC is also reduced. The ink viscosity is increased from the original 12-14" range to the 16-20" range.
[0045] By reducing the depth of the single cell 1, the ink consumption is reduced, and the production cost is reduced. At the same time, since the ink layer is thinner, the energy consumption for drying the ink layer during the production process can also be greatly reduced.
[0046] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.
Claims
1. A printing gravure with inclined lines, characterized in that: It comprises a panel and a plurality of single cells arranged on the panel; each of the single cells is sunken downward to a predetermined depth and each of the single cells is arranged obliquely.
2. The printing gravure of the inclined line screen type according to claim 1, characterized in that: The angle between the axis of the single cell and the vertical direction is 30-60°.
3. The printing gravure of the inclined line screen type according to claim 2, characterized in that: The depth of the single cell ranges from 12 μm to 30 μm.
4. The printing gravure of the inclined line screen type according to claim 3, characterized in that: The wall value between two adjacent single cells is 8 μm-15 μm.
5. The printing gravure of the inclined line screen type according to claim 4, characterized in that: The single cell has a dot value of 108 μm-215 μm.
6. The printing gravure of the inclined line screen type according to claim 1, characterized in that: The longitudinal section of the single cell in the length direction is a U-shaped section with an upper opening.
7. The printing gravure of the inclined line screen type according to claim 6, characterized in that: The longitudinal section of the single cell in the width direction is a U-shaped section with an upper opening.
8. The printing gravure of the inclined line screen type according to claim 7, characterized in that: The longitudinal section of the single cell in the width direction is a semicircular section with an upper opening.
9. The printing gravure of the inclined line screen type according to claim 6, characterized in that: Screen line range: 50L / cm-100L / cm.