CN117784530A - Technological method for preventing negative film exposure machine from sticking plate - Google Patents
Technological method for preventing negative film exposure machine from sticking plate Download PDFInfo
- Publication number
- CN117784530A CN117784530A CN202311660485.2A CN202311660485A CN117784530A CN 117784530 A CN117784530 A CN 117784530A CN 202311660485 A CN202311660485 A CN 202311660485A CN 117784530 A CN117784530 A CN 117784530A
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- CN
- China
- Prior art keywords
- film
- negative
- blank
- exposure machine
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000008569 process Effects 0.000 claims abstract description 20
- 239000002390 adhesive tape Substances 0.000 claims abstract description 7
- 239000011521 glass Substances 0.000 claims abstract description 4
- 239000000758 substrate Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 4
- 108010010803 Gelatin Proteins 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 229920000159 gelatin Polymers 0.000 claims description 3
- 239000008273 gelatin Substances 0.000 claims description 3
- 235000019322 gelatine Nutrition 0.000 claims description 3
- 235000011852 gelatine desserts Nutrition 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920006267 polyester film Polymers 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims description 3
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 claims description 3
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 239000000057 synthetic resin Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 23
- 239000012790 adhesive layer Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000002313 adhesive film Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
Abstract
The invention discloses a process method for preventing a negative exposure machine from sticking a plate, which comprises the following specific steps: s1, attaching a front graphic film negative to a glass platform on a negative machine, and adjusting a film negative alignment hole to ensure that the position of the graphic film negative is kept correct; s2, turning on a vacuum switch for fixing the film negative with the front pattern; s3, fixing the plate positioning jig on a limiting hole of the negative film machine platform; s4, sequentially placing the plates into a positioning jig in the platform; s5, taking a blank film negative with the thickness of 0.06mm or 0.15mm, covering the blank film negative above the plate, and fixing the edge of the blank film negative on a platform of a film negative machine by using an adhesive tape.
Description
Technical Field
The invention belongs to the technical field of printed circuit boards, and particularly relates to a process method for preventing a negative exposure machine from sticking to a board.
Background
The film exposure machine is applied to the manufacturing process of the printed circuit board, one of the most critical processes is to transfer a negative image onto the copper foil substrate, the exposure machine transmits ultraviolet wavelength by opening light rays, and transmits image information from films or other transparent bodies to the surface coated with photosensitive materials, so that the film exposure machine omits a film process in the exposure process, saves film loading and unloading time and cost, reduces deviation caused by film expansion and contraction, directly images CAM data on the PCB, omits CAM manufacturing process, and has high image resolution.
The general film exposure machine does not have a pressing plate mechanism, and the condition that the plate is adhered to the film above can appear in the process of producing the plate with light weight, and under the condition, the risk of plate falling and breakage exists, and meanwhile, the smoothness of production can be influenced.
Disclosure of Invention
The invention aims to: the invention aims to solve the defects in the prior art and provides a process method for preventing a negative exposure machine from sticking a plate.
A process method for preventing a negative film exposure machine from sticking a plate comprises the following specific steps:
s1, attaching a front graphic film negative to a glass platform on a negative machine, and adjusting a film negative alignment hole to ensure that the position of the graphic film negative is kept correct;
s2, turning on a vacuum switch for fixing the film negative with the front pattern;
s3, fixing the plate positioning jig on a limiting hole of the negative film machine platform;
s4, sequentially placing the plates into a positioning jig in the platform;
s5, taking a blank film negative with the thickness of 0.06mm or 0.15mm, covering the blank film negative above the plate, and fixing the edge of the blank film negative on a platform of the film negative machine by using an adhesive tape.
In the step S1, the film negative film comprises a negative film substrate, a photosensitive layer and a glue layer, wherein the negative film substrate is used as a main body of the film and is composed of a plurality of layers of films, the negative film substrate is made of polyester films or polyamide films, and the film negative film is manufactured through coating, drying, shearing and liquid punching steps.
The invention further improves that the photosensitive layer is formed by coating a photosensitive material on a negative substrate, wherein the photosensitive material comprises silver salt, dye, protective dye and the like, and the photosensitive layer can be divided into a single photosensitive layer or a plurality of photosensitive layers.
The invention further improves that the adhesive layer is a transparent adhesive film adhered on the photosensitive layer and is used for protecting the photosensitive layer, and the adhesive layer is made of special synthetic resin or animal glue.
In the step S5, the blank film is made of gelatin.
The invention further improves that in the step S5, the size of the blank film negative is equal to the size of the exposure effective area.
The invention further improves that in the step S5, the thickness of the blank film negative is between 0.1mm and 0.2 mm.
In the step S5, the blank film is blocked between the plate and the upper table top film, and the blank film is fixed on the lower table top by using an adhesive tape to play a role of fixing the pressing plate.
Compared with the prior art, the process method for preventing the negative exposure machine from sticking the plate has the advantages that at least the following beneficial effects are realized:
the condition of sticking the plate can be thoroughly improved; simultaneously, the blank negative film and the upper table top negative film are made of materials with the same density, and after the vacuum action, the two layers of negative films are fully combined, so that the refraction phenomenon of laser when passing through different media is avoided, and the accuracy of negative film pattern transfer is ensured.
Drawings
FIG. 1 is a diagram showing the combined effect of a blank film and a film;
fig. 2 is an effect diagram of the air layer between the blank film and the film.
In the figure: 11-laser one; 12-film negative film I; 13-blank film one; 14-dry film I; 21-laser II; 22-film negative film II; 23-blank negative second; 24-a second dry film; 25-air layer.
Detailed Description
Various exemplary embodiments of the invention will now be described in detail. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
Referring to fig. 1-2, a process method for preventing sticking of a negative film exposure machine comprises the following specific steps:
s1, attaching a front graphic film negative to a glass platform on a negative machine, and adjusting a film negative alignment hole to ensure that the position of the graphic film negative is kept correct;
s2, turning on a vacuum switch for fixing the film negative with the front pattern;
s3, fixing the plate positioning jig on a limiting hole of the negative film machine platform;
s4, sequentially placing the plates into a positioning jig in the platform;
s5, taking a blank film negative with the thickness of 0.06mm or 0.15mm, covering the blank film negative above the plate, and fixing the edge of the blank film negative on a platform of the film negative machine by using an adhesive tape.
In the step S1, the film negative film comprises a negative film substrate, a photosensitive layer and a glue layer, wherein the negative film substrate is used as a main body of the film negative film and is composed of a plurality of layers of films, the negative film substrate is made of polyester films or polyamide films, and the film negative film is manufactured through coating, drying, shearing and liquid punching steps.
The invention further improves that the photosensitive layer is formed by coating a photosensitive material on a negative substrate, wherein the photosensitive material comprises silver salt, dye, protective dye and the like, and the photosensitive layer can be divided into a single photosensitive layer or a plurality of photosensitive layers.
The invention further improves that the adhesive layer is a transparent adhesive film adhered on the photosensitive layer and is used for protecting the photosensitive layer, and the adhesive layer is made of special synthetic resin or animal glue.
In the step S5, the blank film is made of gelatin.
The invention further improves that in the step S5, the size of the blank film negative is equal to the size of the exposure effective area.
The invention further improves that in the step S5, the thickness of the blank film negative is between 0.1mm and 0.2 mm.
In the step S5, the blank film is blocked between the plate and the upper table top film, and the blank film is fixed on the lower table top by using an adhesive tape to play a role of fixing the pressing plate.
As shown in fig. 1, the first laser 11 above the first dry film 14 passes through the first film 12 and the first blank 13, the first film 12 and the first blank 13 have the same dielectric density, and the first laser 11 does not refract after passing through.
As shown in fig. 2, the second laser 21 above the second dry film 24 passes through the second film 22 and the second blank film 23, and an air layer 25 is present between the second film 22 and the second blank film 23, and the second laser 21 is refracted after passing through.
In summary, the process method for preventing the plate sticking of the film exposure machine provided by the invention can thoroughly improve the plate sticking condition; simultaneously, the blank negative film and the upper table top negative film are made of materials with the same density, and after the vacuum action, the two layers of negative films are fully combined, so that the refraction phenomenon of laser when passing through different media is avoided, and the accuracy of negative film pattern transfer is ensured.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (8)
1. A process method for preventing a negative film exposure machine from sticking to a plate is characterized by comprising the following specific steps:
s1, attaching a front graphic film negative to a glass platform on a negative machine, and adjusting a film negative alignment hole to ensure that the position of the graphic film negative is kept correct;
s2, turning on a vacuum switch for fixing the film negative with the front pattern;
s3, fixing the plate positioning jig on a limiting hole of the negative film machine platform;
s4, sequentially placing the plates into a positioning jig in the platform;
s5, taking a blank film negative with the thickness of 0.06mm or 0.15mm, covering the blank film negative above the plate, and fixing the edge of the blank film negative on a platform of the film negative machine by using an adhesive tape.
2. The process for preventing sticking of a negative film exposure machine according to claim 1, wherein,
in the step S1, the film negative includes a negative substrate, a photosensitive layer and a glue layer, the negative substrate is used as a main body of the film and is composed of a plurality of layers of films, the negative substrate is made of a polyester film or a polyamide film, and the film negative is made through coating, drying, shearing and liquid punching steps in the process of making the film negative.
3. The process for preventing sticking of a negative film exposure machine according to claim 2, wherein,
the photosensitive layer is formed by coating a photosensitive material on a negative substrate, the photosensitive material comprises silver salt, dye, protective dye and the like, and the photosensitive layer can be divided into a single photosensitive layer or a plurality of photosensitive layers.
4. The process for preventing sticking of a negative film exposure machine according to claim 2, wherein,
the glue layer is a transparent glue film attached to the photosensitive layer and used for protecting the photosensitive layer, and is made of special synthetic resin or animal glue.
5. The process for preventing sticking of a negative film exposure machine according to claim 1, wherein,
in the step S5, the blank film negative is made of gelatin.
6. The process for preventing sticking of a negative film exposure machine according to claim 1, wherein,
in the step S5, the size of the blank film is equal to the size of the exposure effective area.
7. The process for preventing sticking of a negative film exposure machine according to claim 1, wherein,
in the step S5, the thickness of the blank film negative is between 0.1mm and 0.2 mm.
8. A process for preventing sticking of a negative film exposure machine according to any one of claims 1 to 7, characterized in that,
in the step S5, the blank film is blocked between the plate and the upper table top film, and the blank film is fixed on the lower table top by using an adhesive tape to play a role of fixing the pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311660485.2A CN117784530A (en) | 2023-12-06 | 2023-12-06 | Technological method for preventing negative film exposure machine from sticking plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311660485.2A CN117784530A (en) | 2023-12-06 | 2023-12-06 | Technological method for preventing negative film exposure machine from sticking plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117784530A true CN117784530A (en) | 2024-03-29 |
Family
ID=90379052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311660485.2A Pending CN117784530A (en) | 2023-12-06 | 2023-12-06 | Technological method for preventing negative film exposure machine from sticking plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117784530A (en) |
-
2023
- 2023-12-06 CN CN202311660485.2A patent/CN117784530A/en active Pending
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