CN210940916U

CN210940916U - Screen plate structure capable of reducing ink overflow and providing buffer

Info

Publication number: CN210940916U
Application number: CN201921508307.7U
Authority: CN
Inventors: 蔡富得; 朱沛俊
Original assignee: Brave C&h Supply Co ltd; Brave Precision Mfg Suzhou Co ltd
Current assignee: Brave C&h Supply Co ltd; Brave Precision Mfg Suzhou Co ltd
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2020-07-07
Anticipated expiration: 2029-09-11

Abstract

A screen structure for reducing ink overflow and providing cushioning, comprising: a screen frame; the screen cloth is stretched and fixed on the screen frame, the screen cloth comprises a printing area, and the screen cloth comprises a scraper surface and a pasting printing surface; the at least one first buffer layer is arranged on the pasting printing surface of the screen cloth and is arranged along the edge of the printing area; and at least one second buffer layer arranged on the pasting printing surface of the screen cloth and arranged along the edge of the printing area.

Description

Screen plate structure capable of reducing ink overflow and providing buffer

Technical Field

The utility model discloses a structure of printing half tone especially indicates the excessive black of screen cloth when reducible printing to provide the structure of half tone buffering simultaneously.

Background

FIG. 1a is a schematic diagram illustrating a first printing process of a prior art halftone printing plate; FIG. 1b is a schematic diagram illustrating a second printing process of a prior art printing screen; fig. 1c is a schematic diagram for explaining a third printing process of a printing screen in the prior art. Referring to fig. 1a to 1c, most of the prior art screen printing adopts off-plate printing, i.e. a screen 1 is placed above an object 2 to be printed, and then paste or ink is scraped from a printing area a1 on a mesh 101 onto the object 2 to be printed by a scraper 3 to form a printing pattern. As can be seen from fig. 1a, the set stroke of the scraper 3 is greater than the area of the object to be printed 2, and when the scraper 3 applies a downward pressing force, the mesh 101 is pressed, so as to generate a pressure point P1 and a pressure point P2, the pressure point P1 is the force point between the scraper 3 and the mesh 101, and the pressure point P2 is the bending point of the edge of the mesh 101 and the object to be printed 2, at this time, if the periphery of the object to be printed 2 is relatively sharp, the mesh 101 will be damaged by the pressure point P2.

As can be seen from fig. 1b, the doctor blade 3 applies a force from the pressure point P2 to scrape the paste or ink from the printing area a1 on the mesh 101 onto the object 2 to be printed to form a printed pattern, and at this time, if the downward pressure of the doctor blade 3 is too large, the printing speed is fast, and the paste or ink is easy to overflow from the knife inlet, i.e. the pressure point P2. As can be seen from fig. 1c, the stroke of the doctor blade 3 finally reaches the pressure point P3.

As can be seen from the above-mentioned prior art, the current screen printing structure will cause screen damage or ink overflow during the printing process. For the above reasons, it is an issue to provide a screen structure capable of reducing ink overflow and providing screen cushion during printing.

SUMMERY OF THE UTILITY MODEL

To achieve the above object, the present invention provides a screen printing plate structure capable of reducing ink overflow and providing buffer, including: a screen frame; the screen cloth is stretched and fixed on the screen frame, the screen cloth comprises a printing area, and the screen cloth comprises a scraper surface and a pasting printing surface; the at least one first buffer layer is arranged on the pasting printing surface of the screen cloth and is arranged along the edge of the printing area; and at least one second buffer layer arranged on the pasting printing surface of the screen cloth and arranged along the edge of the printing area.

Preferably, when the printing surface of the mesh cloth is adhered to an object to be printed on an area to be printed, the at least one first buffer is stacked on the edge of the object to be printed, and the at least one second buffer is stacked on the area to be printed.

Preferably, the thickness of the at least one first buffer layer is between 5 μm and 40 μm.

Preferably, the thickness of the at least one second buffer layer is between 0.3 times the thickness of the object to be printed and 1.2 times the thickness of the object to be printed.

Preferably, the distance between the at least one first buffer layer and the printing region is any value between 0 and 3 mm.

Preferably, the distance between the at least one second buffer layer and the object to be printed is greater than 0.3 mm.

Preferably, the at least one first buffer layer is disposed along a corner of the edge of the printing region, and the at least one second buffer layer is disposed along an edge of the at least one first buffer layer.

Preferably, the at least one first buffer layer is disposed along a corner of the edge of the printing region, and the at least one second buffer layer is disposed along a periphery of the edge of the printing region.

Drawings

Various aspects of the present invention, as well as specific features and advantages thereof, will be more readily apparent to those of ordinary skill in the art upon reading the following detailed description, and by referring to the accompanying drawings, in which:

FIG. 1a is a schematic diagram illustrating a first printing process of a prior art printing screen;

FIG. 1b is a schematic diagram illustrating a second printing process of a prior art printing screen;

FIG. 1c is a schematic diagram illustrating a third prior art printing process of a printing screen;

FIG. 2 is a schematic diagram illustrating a screen structure for reducing ink overflow and providing a buffer according to an embodiment of the present invention;

FIG. 3 is a schematic view illustrating a cross-sectional structure A-A of FIG. 2;

FIG. 4 is a schematic diagram illustrating the relationship between a screen structure for reducing ink overflow and providing a buffer and an object to be printed according to an embodiment of the present invention; and

fig. 5 is a schematic diagram illustrating another embodiment of a screen structure for reducing ink overflow and providing a buffer.

Wherein the reference numerals are as follows:

1. 5 half tone screen

101 mesh cloth

2 waiting for printing

20 area to be printed

22 printing pattern

3 scraper

4 half tone structure

40. 50 net frame

42. 52 mesh fabric

44. 54 first buffer layer

46. 56 second buffer layer

S1 scraper surface

S2 paste printing surface

distance d1, d2

T1, T2, T3 thickness

P1, P2, P3 pressure points

A1, A2, A3 printing area

Detailed Description

The following embodiments of the present invention will be described in more detail with reference to the drawings and the accompanying drawings, so that those skilled in the art can implement the invention after studying the specification.

Fig. 2 is a schematic view for illustrating a screen structure for reducing ink overflow and providing a buffer according to an embodiment of the present invention; fig. 3 is a schematic view illustrating a cross-sectional structure a-a of fig. 2. Referring to fig. 2 and 3, in an embodiment of the present invention, the screen structure 4 for reducing ink overflow and providing buffering includes a frame 40, a mesh 42, at least one first buffer layer 44, and at least one second buffer layer 46. The mesh 42 is stretched and fixed on the frame 40, the mesh 42 includes a printing area a2, and the mesh 42 includes a scraping surface S1 and a pasting surface S2. The at least one first cushioning layer 44 is disposed on the pasting surface S2 of the mesh fabric 42, and the at least one first cushioning layer 44 is disposed along the edge of the printing area a 2. At least one second cushioning layer 46 is disposed on the printing side S2 of the web 42, and at least one second cushioning layer 46 is also disposed along the edge of the printing zone a 2.

To be further described, in an embodiment of the present invention, the at least one first buffer layer 44 is disposed along a corner of the edge of the printing area a2, and the at least one second buffer layer 46 is disposed along the edge of the at least one first buffer layer 44, so as to form a splay structure at the bilateral symmetry of the mesh fabric 42, and the at least one first buffer layer 44 and the at least one second buffer layer 46 provide a buffer for the screen structure 4 and reduce ink overflow when the screen structure 4 is printed.

In addition, in an embodiment of the present invention, the first buffer layer 44 and the second buffer layer 46 can be made of a single polymer material or a combination of two materials with soft, wear-resistant and flexible materials.

Fig. 4 is a schematic diagram illustrating a relationship between a screen structure for reducing ink overflow and providing a buffer and an object to be printed according to an embodiment of the present invention. Referring to fig. 3 and 4, in an embodiment of the present invention, when the printing surface S2 of the mesh fabric 42 is attached to a to-be-printed object 2 placed on a to-be-printed area 20 for performing a screen printing operation, the first buffer layer 44 is overlapped on the edge of the to-be-printed object 2, and the second buffer layer 46 is overlapped on the to-be-printed area 20, as shown by the dashed guiding lines in fig. 4. Therefore, when the mesh fabric 42 contacts the object 2, the first cushioning layer 44 and the second cushioning layer 46 can provide cushioning to prevent the mesh fabric 42 from being scratched by the edge of the object 2. Furthermore, when the doctor blade applies force to the web 2 to scrape the ink into the printing area a2 through the doctor blade surface S1 and form the printing pattern 22 on the object 2, the first buffer layer 44 and the second buffer layer 46 can also provide buffer to prevent the excessive pressure applied by the doctor blade to the web 2 from causing ink overflow.

It should be noted that referring to fig. 3 and 4, in an embodiment of the present invention, the thickness T1 of the first buffer layer 44 is between 5 μm and 40 μm. Furthermore, the thickness T2 of the second buffer layer 46 is between 0.3 times the thickness T3 of the object 2 to 1.2 times the thickness T3 of the object 2, for example, if the thickness T3 of the object 2 is 180 μm, the thickness T2 of the second buffer layer 46 is between 54 μm and 216 μm. On the other hand, the distance d1 between the first buffer layer 44 and the printing area a2 is any value between 0 and 3mm, and the distance d2 between the second buffer layer 46 and the object 2 is greater than 0.3 mm. Such thickness structure and distance structure arrangement can provide the best cushioning effect for the mesh cloth 2.

Fig. 5 is a schematic diagram illustrating another embodiment of a screen structure for reducing ink overflow and providing a buffer. Referring to fig. 5, in another embodiment of the present invention, a screen structure 5 for reducing ink overflow and providing cushioning includes a frame 50, a mesh 52, at least one first cushioning layer 54, and at least one second cushioning layer 56. Similarly, the mesh 52 includes a printing area A3, and at least one first cushioning layer 54 and at least one second cushioning layer 56 are disposed on the printing side of the mesh 52, wherein the at least one first cushioning layer 54 is disposed along an edge of the printing area A3, and the at least one second cushioning layer 56 is disposed along an edge of the printing area A3.

To be more specific, the first cushioning layer 54 is disposed along the corner of the edge of the printing area A3, and the second cushioning layer 56 is disposed along the periphery of the edge of the printing area A3. as shown in fig. 5, in another embodiment of the present invention, the first cushioning layer 54 forms an eight-letter structure at the left-right symmetrical position of the mesh 52, and the second cushioning layer 56 forms a "square" shape at the edge of the printing area A3 of the mesh 52, such a structure is simplified in the manufacturing process, and only the second cushioning layer 56 is disposed around the edge of the printing area A3.

Similarly, in another embodiment of the present invention, the material of the first buffer layer 54 and the second buffer layer 56 can be a single polymer material or a combination of two materials with soft, wear-resistant and flexible materials

From the above, the present invention successfully provides a screen plate structure that reduces ink overflow and provides a buffer. The utility model discloses in, can be by at least one first buffer layer and at least one second buffer layer of setting up on the half tone structure, the half tone structure that makes can provide the buffering to the screen cloth of half tone structure by at least one first buffer layer and at least one second buffer layer when printing, avoid the screen cloth to be treated the seal or scraper scratch, also avoid the scraper application of force to cause excessive china ink in the too big pressure of screen cloth.

The foregoing is illustrative of the preferred embodiment of the present invention and is not intended to limit the invention in any way, and therefore any modification or variation of the invention, which is made within the spirit of the invention, is intended to be covered by the scope of the invention.

Claims

1. A screen structure for reducing ink overflow and providing a buffer, comprising:

a screen frame;

the screen cloth is stretched and fixed on the screen frame, the screen cloth comprises a printing area, and the screen cloth comprises a scraper surface and a pasting printing surface;

the at least one first buffer layer is arranged on the pasting printing surface of the screen cloth and is arranged along the edge of the printing area; and

and the at least one second buffer layer is arranged on the pasting and printing surface of the screen cloth and is arranged along the edge of the printing area.

2. The screen structure of claim 1, wherein the at least one first buffer is stacked on an edge of an object to be printed and the at least one second buffer is stacked on the area to be printed when the printing surface of the screen cloth is bonded to the object to be printed placed on the area to be printed.

3. The screen structure of claim 2, wherein the thickness of the at least one first buffer layer is between 5 μm and 40 μm.

4. The screen structure of claim 2, wherein the thickness of the at least one second buffer layer is between 0.3 times the thickness of the object to be printed and 1.2 times the thickness of the object to be printed.

5. The screen structure of claim 2, wherein a distance between the at least one first buffer layer and the printing region is any value between 0 and 3 mm.

6. The screen structure of claim 2, wherein a distance between the at least one second buffer layer and the object to be printed is greater than 0.3 mm.

7. The screen structure of claim 1, wherein the at least one first buffer layer is disposed along a corner of the edge of the printing region, and the at least one second buffer layer is disposed along an edge of the at least one first buffer layer.

8. The screen structure of claim 1, wherein the at least one first buffer layer is disposed along a corner of the edge of the printing region and the at least one second buffer layer is disposed along a periphery of the edge of the printing region.