CN112248630A - Curved paper tray printing device and pad printing method - Google Patents
Curved paper tray printing device and pad printing method Download PDFInfo
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- CN112248630A CN112248630A CN202011249207.4A CN202011249207A CN112248630A CN 112248630 A CN112248630 A CN 112248630A CN 202011249207 A CN202011249207 A CN 202011249207A CN 112248630 A CN112248630 A CN 112248630A
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- printing
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- transfer printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
- B41F17/001—Pad printing apparatus or machines
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Abstract
The invention relates to a curved paper support printing device and a transfer printing method, which comprise a fixing part, a paper support and a transfer printing head for transfer printing ink, wherein the transfer printing head is arranged at the bottom of the fixing part and can be elastically deformed, the transfer printing head is in contact with the surface of the paper support, the transfer printing head is in seamless contact with a bulge and/or a groove on the surface of the paper support, and the transfer printing head is made of flexible materials. The scheme has high production efficiency and stable quality, and can meet the requirement of large-scale industrial production; the device has strong adaptability, is suitable for dry-pressing and wet-pressing and printing of some special-shaped products, can meet the requirements of processing of various functional printing inks, has low threshold, and is suitable for investment and production of small and medium-sized entrepreneurship companies.
Description
Technical Field
The invention relates to the field of paper holder printing, in particular to a curved paper holder printing device and a pad printing method.
Background
Paper holds in the palm as main packing buffer material, along with the continuous improvement of environmental protection requirement, forbids the implementation of moulding the order, and paper holds in the palm more and more receives environmental protection personage and packaging enterprise's favor, and people also are higher and higher to the requirement that paper held in the palm simultaneously, and wherein also this piece of demand of printing that holds in the palm to paper is more and more intense, and there are two main problem points in the printing of paper support: firstly, the surface that paper held in the palm is comparatively coarse, can appear exposing the white phenomenon easily, and secondly paper holds in the palm all has certain shape, is not smooth face, and there is very big degree of difficulty in the printing on irregular curved surface. At present, water transfer printing is more and more widely applied to the field of curved surface printing, but is limited to recycled paper which is made of a paper support material and cannot be contacted with water, and the water transfer printing is not suitable for being applied to the paper support. Paper holds in the palm and divide into futilely to press and wet pressing two kinds, and wet pressing paper holds in the palm the surface comparatively smooth, and the adaptability to printing will be some, but dry pressing paper holds in the palm the surface and has obvious unsmooth undulant sense comparatively coarsely, and it is great to print the degree of difficulty on the surface of unevenness, therefore designs a device of being convenient for carry out the printing on rough surface and is just very important.
Disclosure of Invention
The invention provides a curved paper tray printing device and a pad printing method, and aims to solve the problem that printing on an uneven surface is difficult.
The invention provides a curved paper support printing device which comprises a fixing part, a paper support and a transfer printing head for pad printing of ink, wherein the transfer printing head is arranged at the bottom of the fixing part and can be elastically deformed, the transfer printing head is in contact with the surface of the paper support, the transfer printing head is in seamless contact with a bulge and/or a groove on the surface of the paper support, and the transfer printing head is made of flexible materials.
As a further improvement of the invention, the transfer head is made of a silicon rubber material.
As a further improvement of the present invention, the number of the transfer heads is determined by the shape of the paper holder, and at least one is provided.
As a further development of the invention, the transfer head can be designed in a square, circular or oval shape.
The invention also provides a pad printing method of the curved paper holder printing device, which comprises the following steps:
s1: placing the paper holder on a base film;
s2: selecting the shape and the number of the transfer heads according to the shape of the paper support;
s3: holding the fixed part, pressing the transfer printing head onto a screen printing plate by a deformation amount of a preset value, and transferring the printing ink on the screen printing plate onto the transfer printing head;
s4: and quickly impressing the transfer head to the corresponding position on the paper support, and regulating the deformation amount of the transfer head to be consistent with the deformation amount of the step S3.
As a further improvement of the present invention, the number of the transfer heads is set to at least one.
As a further improvement of the present invention, the deformation amount of the preset value in the step S3 ranges from 40% to 60%.
The invention has the beneficial effects that: the scheme has high production efficiency and stable quality, and can meet the requirement of large-scale industrial production; the device has strong adaptability, is suitable for dry-pressing and wet-pressing and printing of some special-shaped products, can meet the requirements of processing of various functional printing inks, has low threshold, and is suitable for investment and production of small and medium-sized entrepreneurship companies.
Drawings
FIG. 1 is a schematic illustration of the present invention in preparation for pad printing;
FIG. 2 is a schematic view of a transfer head of the present invention in contact with a paper holder;
FIG. 3 is an enlarged view of the contact of the transfer head of the present invention with the surface of the paper holder;
fig. 4 is a flow chart of the method of the present invention.
Detailed Description
Description of the drawings: 1-fixed part, 2-transfer head, 3-paper holder and 4-bottom film.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in fig. 1 to 3, the present invention provides a curved paper tray printing apparatus, including a fixing portion 1, a paper tray 3, and a transfer head 2 for pad printing ink, wherein the transfer head 2 is disposed at the bottom of the fixing portion 1, the transfer head 2 is elastically deformable, the transfer head 2 is in surface contact with the paper tray 3, the transfer head 2 is in seamless contact with a protrusion and/or a groove on the surface of the paper tray 3, and the transfer head 2 is made of a flexible material.
As an embodiment of the present invention, the transfer head 2 is made of a silicone rubber material.
As another embodiment of the present invention, the number of the transfer heads 2 is determined by the shape of the paper tray 3, and at least one is provided.
As another embodiment of the present invention, the transfer head 2 may be designed in a square, circular or oval shape.
As shown in fig. 4, the present invention also provides a pad printing method of the curved paper holder printing apparatus, comprising the steps of:
s1: placing the paper holder 3 on a bottom film 4;
s2: selecting the shape and the number of the transfer heads 2 according to the shape of the paper tray 3;
s3: holding the fixed part 1, pressing the transfer printing head 2 onto a screen printing plate by a deformation amount of a preset value, and transferring the printing ink on the screen printing plate onto the transfer printing head 2;
s4: and rapidly stamping the transfer head 2 to the corresponding position on the paper support 3, and regulating the deformation amount of the transfer head 2 to be consistent with the deformation amount of the step S3.
As another embodiment of the present invention, the number of the transfer heads 2 is set to at least one.
As another embodiment of the present invention, the deformation amount of the preset value in the step S3 ranges from 40% to 60%.
According to the scheme, the transfer printing head 2 is customized according to the structural characteristics of the paper support 3 and the area needing to be printed, the soft transfer printing head 2 is used for transferring the patterns on the screen printing plate to the transfer printing head 2, the patterns are transferred to the printing area of the paper support 3, the patterns are transferred, the customized transfer printing head 2 corresponds to the structure of the paper support 3, and the mass production printing of the paper support 3 is realized.
Explaining this by way of a specific example, as shown in fig. 1-2, the paper holder 3 is placed on the base film 4, the paper holder 3 is shaped like a "hill", and a projection is formed in the middle of the paper holder 3, so that the transfer head 2 is provided in two according to its shape, one of which is provided at one end of the bottom of the fixing portion 1 and the other of which is provided at the other end of the bottom of the fixing portion 1, so that when pressed on the paper holder 3, the two transfer heads 2 are separated on both sides for pad printing. Fig. 3 shows an enlarged view of the contact between the transfer head 2 and the paper holder 3 during the pad printing process, and it can be seen that the surface of the paper holder 3 is uneven, but because the transfer head 2 is made of a flexible material, the transfer head can make seamless contact with the surface of the paper holder 3, so that the transferred pattern can be perfectly pad-printed on the paper holder 3, and the method is suitable for printing on various surfaces, and improves the applicability of the scheme.
Before the transfer printing is carried out on the paper support 3, the transfer printing head 2 needs to transfer ink from the screen, the quality of the ink directly affects the quality of the transfer printing, firstly, a proper drying speed is needed, if the drying speed of the ink is high, the ink can be dried on a printing plate or the transfer printing head 2, so that the ink cannot be normally transferred, and if the drying speed of the ink is low, the ink is easy to flow under the action of pressure, so that the pattern is seriously deformed. Secondly, the fluidity is good, during the printing process, the ink can pass through the screen and the transfer printing head 2 and then reaches the upper surface of the base material, if the fluidity of the ink is not good enough, the ink is easy to be exposed, especially on the rough paper support 3 material, the good fluidity can automatically level and fill the defect of the base material. The ink with high viscosity is required to be better adhered to a substrate, high adhesive force is realized, and the service life of a printed matter can be prolonged. And scraping the selected ink onto the screen printing plate by using a doctor blade at an angle of 70-80 degrees, pressing the selected ink onto the screen printing plate by using the transfer printing head 2 with a preset deformation amount, transferring the ink, and stamping the ink transferred from the screen printing plate onto the paper support 3 with the same deformation amount, wherein the preset deformation amount ranges from 40% to 60%, and is preferably 50%.
After the pad printing is finished, the next step of processing can be carried out after the printing ink is dried, and meanwhile, if the printing ink is multi-color printing, the process flow is repeated.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (7)
1. The utility model provides a curved paper holds in palm printing device, its characterized in that includes fixed part, paper support and is used for the transfer printing head of bat printing ink, the transfer printing head is located the fixed part bottom, but transfer printing head elastic deformation, the transfer printing head with paper holds in the palm surface contact, the transfer printing head with protruding and/or the seamless contact of recess on paper support surface, the transfer printing head adopts flexible material.
2. A curved paper tray printing apparatus according to claim 1, wherein said transfer head is made of silicone rubber.
3. A curved paper tray printing apparatus according to claim 2, wherein the number of said transfer heads is determined by the shape of said paper tray, and at least one is provided.
4. A curved paper tray printing unit according to claim 3, wherein the transfer head is designed as a square, circle or oval.
5. A pad printing method of a curved paper tray printing device according to claims 1-4, characterized by comprising the following steps:
s1: placing the paper holder on a base film;
s2: selecting the shape and the number of the transfer heads according to the shape of the paper support;
s3: holding the fixed part, pressing the transfer printing head onto a screen printing plate by a deformation amount of a preset value, and transferring the printing ink on the screen printing plate onto the transfer printing head;
s4: and quickly impressing the transfer head to the corresponding position on the paper support, and regulating the deformation amount of the transfer head to be consistent with the deformation amount of the step S3.
6. The pad printing method of a curved paper tray printing apparatus according to claim 5, wherein at least one transfer head is provided in number.
7. The printing method of a curved paper tray printing device according to claim 6, wherein the deformation amount of the preset value in the step S3 is in the range of 40% -60%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011249207.4A CN112248630A (en) | 2020-11-10 | 2020-11-10 | Curved paper tray printing device and pad printing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011249207.4A CN112248630A (en) | 2020-11-10 | 2020-11-10 | Curved paper tray printing device and pad printing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112248630A true CN112248630A (en) | 2021-01-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011249207.4A Pending CN112248630A (en) | 2020-11-10 | 2020-11-10 | Curved paper tray printing device and pad printing method |
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| CN (1) | CN112248630A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113022114A (en) * | 2021-03-17 | 2021-06-25 | 清华大学 | Transfer printing stamp and preparation method and using method thereof |
| CN113427888A (en) * | 2021-06-15 | 2021-09-24 | 清华大学 | Seal unit design method, seal unit and seal |
| CN113561642A (en) * | 2021-07-08 | 2021-10-29 | Tcl华星光电技术有限公司 | Paste pad printing mechanism |
-
2020
- 2020-11-10 CN CN202011249207.4A patent/CN112248630A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113022114A (en) * | 2021-03-17 | 2021-06-25 | 清华大学 | Transfer printing stamp and preparation method and using method thereof |
| CN113427888A (en) * | 2021-06-15 | 2021-09-24 | 清华大学 | Seal unit design method, seal unit and seal |
| CN113561642A (en) * | 2021-07-08 | 2021-10-29 | Tcl华星光电技术有限公司 | Paste pad printing mechanism |
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