CN109591470A

CN109591470A - Printing ink silk-screen method for plane glass

Info

Publication number: CN109591470A
Application number: CN201811282261.1A
Authority: CN
Inventors: 李飞; 唐业波; 孙大富; 汤占刚; 王本初
Original assignee: Dongguan Yintaifeng Optical Technology Co Ltd
Current assignee: Dongguan Yintaifeng Optical Technology Co Ltd
Priority date: 2018-10-30
Filing date: 2018-10-30
Publication date: 2019-04-09

Abstract

The invention provides a printing ink silk-screen method for plane glass, which comprises the following steps: taking a plane glass; attaching a layer of heat insulation cotton on the surface of the screen printing table; preparing a printing pattern layer on the screen after exposure and development; shooting and measuring the sizes of four edges of the plane glass by using a CCD camera, and aligning the center of the printing pattern layer with the center of the plane glass; feeding back data shot by a CCD camera to a control system in real time, mounting motors at four corners of a screen frame of a screen plate, controlling the work of the motors by the control system, and controlling the offset degree of the screen frame by the motors to enable four edges of a printed pattern layer to coincide with four edges of the plane glass; the ink was uniformly coated on the screen using a doctor blade. According to the ink silk-screen method for the plane glass, the tension of the gauze is controlled by controlling the stretching amount of the motor in the silk-screen process, so that the four edges of the printed pattern layer are overlapped with the four edges of the plane glass, the alignment is automatically carried out, and the printing precision is improved.

Description

A kind of ink silk screen printing method of flat glass

Technical field

The present invention relates to screen printing technique fields, and in particular to a kind of ink silk screen printing method of flat glass.

Background technique

In recent years, silk-screen printing device and method for printing screen are widely used in the electronic fields such as circuit board, display screen In, with the miniaturization, lightweight, multifunction of electronic equipment, the requirement of electronic equipment is higher and higher, therefore, for printing Precision is also higher and higher.

For display screen industry, the components such as glass light guide plate need printing UV ink, make net on glass light guide plate surface Point, general printing equipment cause glass light guide plate to be bitten due to being easy to appear glass light guide plate positional shift when printing Phenomenon, net-point quality is poor, influences guide-lighting quality.

Summary of the invention

In view of the above problems, the present invention provides a kind of ink silk screen printing method of flat glass, pass through control in silk-screen printing process The stroke of motor processed controls the tension of grenadine, to make four of printing pattern layer to weigh while with the four of flat glass It closes, automatic aligning, improves printing precision.

To achieve the above object, the present invention solves by the following technical programs:

A kind of ink silk screen printing method of flat glass, comprising the following steps:

S1 takes the flat glass once over cleaning, drying；

S2 sticks one layer of heat insulation foam on silk-screen table top, and flat glass is placed on heat insulation foam；

S3 coats one layer of photoresists on the grenadine of web plate, a film film is placed on the upside of web plate, after overexposure, development Printing pattern layer is made on web plate；

Web plate is moved on the upside of flat glass by S4, and the size on four sides of flat glass is shot and measured using CCD camera, and It is directed at the center of printing pattern layer with the center of flat glass；

The data Real-time Feedback of S5CCD camera shooting all installs motor at four angles of screen frame of web plate into control system, controls The work of system control motor, to control the tension of grenadine, makes printing pattern layer using the degrees of offset of motor control screen frame Four be overlapped while with the four of flat glass；

S6 applies curing ink at grenadine edge, and ink is uniformly coated on grenadine using scraper, completes silk-screen process.

Specifically, the temperature of flat glass is kept for 21~25 DEG C during the step S1~S2.

Specifically, the heat insulation foam with a thickness of 0.3~1mm.

Specifically, the grenadine is the polyester silk printing screen yarn of 300~480 mesh, the diameter of the latitude and longitude of the grenadine is 30 ~50 μm.

Specifically, the tension of the grenadine is 18~19N, stretching angle is 22~23 °.

Specifically, the smearing thickness of the photoresists is 10~12 μm.

Specifically, four angles of the silk-screen table top are designed with CCD camera, each CCD camera is responsible for camera plane glass The size of corresponding sides.

The beneficial effects of the present invention are:

The first, the ink silk screen printing method of flat glass of the invention makes flat glass by the temperature of strict control flat glass Surface tension remain constant, to print after ink each position uniform force when ink forms a film, improve ink film layer matter Amount；

The second, in silk-screen printing process, the size on four sides of flat glass is shot and measured using CCD camera, and passes through control The stroke of motor controls the tension of grenadine, and thereby makes four of printing pattern layer weigh while with the four of flat glass It closes, realizes automatic aligning, improve printing precision.

Detailed description of the invention

Fig. 1 is the simulation light schematic diagram of the LED light of the prior art.

Appended drawing reference are as follows: silk-screen table top 1, flat glass 11, heat insulation foam 2, web plate 3, grenadine 31, printing pattern layer 311, net Frame 32, CCD camera 4, motor 5.

Specific embodiment

Below with reference to embodiment and attached drawing, the present invention is described in further detail, but embodiments of the present invention are unlimited In this.

Embodiment 1

A kind of ink silk screen printing method of flat glass as shown in Figure 1:, comprising the following steps:

S1 takes a flat glass 11, and flat glass 11 is placed in cleaning machine and is cleaned, and water temperature is kept for 23 DEG C in cleaning process, then Flat glass 11 is kept for 23 DEG C by blower, the leaving air temp of blower；

Flat glass 11 is placed in the silk-screen room that temperature is 23 DEG C by S2, and it is 0.5mm's that a layer thickness is sticked on silk-screen table top 1 Flat glass 11 is placed on heat insulation foam 2 by heat insulation foam 2, and above-mentioned steps pass through the temperature of strict control flat glass 11, makes plane The surface tension of glass 11 remains constant, to print each position uniform force when ink forms a film after ink, improves ink Film quality；

S3 takes a web plate 3, and web plate 3 includes grenadine 31 and the screen frame 32 being coated on around grenadine 31, the grenadine 31 that present case uses Diameter for 420 mesh, latitude and longitude is 35 μm, tension 18N, the polyester silk printing screen yarn that stretching angle is 22.5 °, in web plate 3 The photoresists that a layer thickness is 10 μm are coated on grenadine 31, a film film is placed on the upside of web plate 3, through overexposure, development Printing pattern layer 311 is made on web plate 3 afterwards；

Web plate 3 is moved to 11 upside of flat glass by S4, and four sides of flat glass 11 are shot and measured using CCD camera 4 Size, and it is directed at the center of printing pattern layer 311 and the center of flat glass 11；

The number of S5CCD camera 4 be more than or equal to 1, for the size of camera plane glass 11, in order to improve working efficiency, Four angles of silk-screen table top 1 are designed with CCD camera 4, and each CCD camera 4 is responsible for the size of 11 corresponding sides of camera plane glass, The data Real-time Feedback that CCD camera 4 is shot all installs motor 5 at 32 4 angles of screen frame of web plate 3 into control system, controls System controls the work of motor 5, and the degrees of offset of screen frame 32 is controlled using motor 5, and the structure of screen frame 32 changes, affects The stretching angle of latitude and longitude is 22.5 ° in grenadine 31, so that the shape of printing pattern layer 311 is changed, by controlling grenadine 31 Tension, and the tension variation amplitude of grenadine 31 is 0~0.2mm, makes four sides and the flat glass 11 of printing pattern layer 311 Four sides are overlapped, and realize automatic aligning, improve printing precision；

S6 applies curing ink at 31 edge of grenadine, ink is uniformly coated on grenadine 31 using scraper, plane after ink setting 11 surface of glass forms ink film layer, completes silk-screen process.

Embodiment 2

S1 takes a flat glass 11, and flat glass 11 is placed in cleaning machine and is cleaned, and water temperature is kept for 25 DEG C in cleaning process, then Flat glass 11 is kept for 25 DEG C by blower, the leaving air temp of blower；

Flat glass 11 is placed in the silk-screen room that temperature is 25 DEG C by S2, and it is 0.5mm's that a layer thickness is sticked on silk-screen table top 1 Flat glass 11 is placed on heat insulation foam 2 by heat insulation foam 2, and above-mentioned steps pass through the temperature of strict control flat glass 11, makes plane The surface tension of glass 11 remains constant, to print each position uniform force when ink forms a film after ink, improves ink Film quality；

S3 takes a web plate 3, and web plate 3 includes grenadine 31 and the screen frame 32 being coated on around grenadine 31, the grenadine 31 that present case uses Diameter for 400 mesh, latitude and longitude is 35 μm, tension 18N, the polyester silk printing screen yarn that stretching angle is 22.5 °, in web plate 3 The photoresists that a layer thickness is 10 μm are coated on grenadine 31, a film film is placed on the upside of web plate 3, through overexposure, development Printing pattern layer 311 is made on web plate 3 afterwards；

Above embodiments only express 2 kinds of embodiments of the invention, and the description thereof is more specific and detailed, but can not be because This and be interpreted as limitations on the scope of the patent of the present invention.It should be pointed out that for those of ordinary skill in the art, Under the premise of not departing from present inventive concept, various modifications and improvements can be made, and these are all within the scope of protection of the present invention. Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.

Claims

1. an ink screen printing method of flat glass, is characterized in that, comprises the following steps:

S1 takes a cleaned and dried flat glass (11);

S2 paste a layer of insulation cotton (2) on the screen printing table (1), and place the flat glass (11) on the insulation cotton (2);

S3 Coat a layer of photosensitive glue on the mesh (31) of the stencil (3), place a film on the upper side of the stencil (3), and obtain a printed pattern on the stencil (3) after exposure and development layer(311);

S4 move the screen plate (3) to the upper side of the flat glass (11), use the CCD camera (4) to shoot and measure the dimensions of the four sides of the flat glass (11), and make the center of the printing pattern layer (311) and the flat surface centering of the glass (11);

The data captured by the S5CCD camera (4) is fed back to the control system in real time. Motors (5) are installed at the four corners of the screen frame (32) of the screen plate (3), and the control system controls the work of the motor (5). 5) control the offset degree of the screen frame (32), thereby controlling the tension of the mesh yarn (31), so that the four sides of the printing pattern layer (311) coincide with the four sides of the flat glass (11);

S6 applies ink on the edge of the mesh yarn (31), and uses a scraper to evenly coat the ink on the mesh yarn (31) to complete the screen printing process.

2 . The ink screen printing method for flat glass according to claim 1 , wherein the temperature of the flat glass ( 11 ) is maintained at 21 to 25° C. during the steps S1 to S2. 3 .

3 . The method for ink screen printing on flat glass according to claim 1 , wherein the thickness of the heat insulating cotton ( 2 ) is 0.3-1 mm. 4 .

4 . The ink screen printing method for flat glass according to claim 1 , wherein the mesh ( 31 ) is a polyester screen printing mesh of 300-480 meshes, and the mesh ( 31 ) has The diameter of the warp and weft threads is 30 to 50 μm.

5 . The ink screen printing method for flat glass according to claim 1 , wherein the tension of the mesh yarn ( 31 ) is 18-19 N, and the stretching angle is 22-23°. 6 .

6 . The ink screen printing method for flat glass according to claim 1 , wherein the thickness of the photosensitive adhesive is 10-12 μm. 7 .

7. The ink silk screen printing method of the flat glass according to claim 1, wherein the four corners of the silk screen printing table (1) are provided with CCD cameras (4), and each CCD camera (4) ) is responsible for photographing the size of the corresponding side of the flat glass (11).