Photosensitive material plate coating device
By using a cover strip and nitrogen protection design during the production of photosensitive material plates, the problem of solvent evaporation in the photosensitive material layer was solved, resulting in higher printing speeds, clearer image quality, and extended product shelf life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-09
- Publication Date
- 2026-03-24
AI Technical Summary
In existing photosensitive material coating equipment, the solvent in the photosensitive material layer evaporates rapidly during the production process, resulting in fewer printing passes and blurry printed images.
The design employs a covering strip and nitrogen protection. The newly produced photosensitive material plate is covered with the covering strip and nitrogen tank, and the gas composition is controlled during the covering process. A humidifier is used to provide alcohol vapor to stabilize the photosensitive coating.
It increases the number of printing passes for photosensitive plates, improves image clarity, increases the number of printing passes by 10-15%, makes the patterns clearer, and extends the shelf life by 30-40 days.
Smart Images

Figure CN224035763U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of photosensitive material plate production equipment technology, specifically to a photosensitive material plate coating apparatus and a photosensitive material plate production method. Background Technology
[0002] The photosensitive material plate includes a substrate below and a photosensitive material layer on the substrate. The substrate is an aluminum substrate. The photosensitive material layer is formed by coating the substrate with a photosensitive coating (also known as a photosensitive adhesive or photosensitive solution) and allowing it to solidify. The equipment used to coat the substrate with a layer of photosensitive coating is a photosensitive material plate coating device.
[0003] The photosensitive material plate coating apparatus includes a frame with conveyor rollers driven by a conveyor motor. The conveyor rollers have a conveyor belt for transporting the photosensitive material plates. The conveyor belt transports the substrate and the photosensitive material plate from back to front. The frame also includes a photosensitive coating station with a spray nozzle facing the coating station. In existing technology, the photosensitive material plate coating apparatus lacks a component to cover the photosensitive material layer on the freshly produced photosensitive material plate; that is, the photosensitive material layer is exposed. This causes the solvent in the photosensitive material layer to evaporate quickly, affecting product quality, mainly manifested in fewer printing passes and blurry printed images. Summary of the Invention
[0004] The purpose of this invention is to address the aforementioned shortcomings by providing a photosensitive material coating apparatus and a photosensitive material production method that produce photosensitive material plates with more printing cycles and clearer images.
[0005] The technical solution of the photosensitive material plate coating device of the present invention is implemented as follows: The photosensitive material plate coating device includes a frame, on which a conveyor roller driven by a conveyor motor is mounted. The conveyor roller has a conveyor belt for the photosensitive material plate. The conveyor roller is a component for conveying the substrate and the photosensitive material plate. The substrate and the photosensitive material plate are conveyed from back to front under the action of the conveyor roller. The frame also includes a photosensitive coating station, and a photosensitive coating nozzle facing the coating station. The device is characterized in that a cover belt driven by a roller connected to a motor is also installed on the frame. The cover rollers, including a front cover roller and a rear cover roller, are equipped with a cover motor. The cover belt is made of rubber and includes a base layer and protrusions on the base layer. The protrusions include side protrusions on the left and right sides of the base layer and multiple horizontal protrusions spaced apart on the base layer in the left-right direction. Under the action of the cover motor, the cover belt and the newly produced photosensitive material plate move synchronously. The side protrusions contact the sides of the conveyor belt, and the horizontal protrusions contact the newly produced photosensitive material plate.
[0006] Furthermore, the time it takes for the underside of the covering strip and the newly produced photosensitive material plate to operate synchronously is 60-90 seconds.
[0007] Furthermore, a covering unit is formed between two side protrusions and two transverse protrusions on the covering strip. A front air inlet and a rear exhaust port are also provided on the base layer of a covering unit. The device also includes a nitrogen tank connected to a nitrogen output pipe, which is connected to an air blowing box. This air blowing box is a rear air blowing box, which is mounted on the device frame. The rear air blowing box has a lower rear air blowing box opening that contacts the base layer of the lower part of the covering strip and is close to the nozzle.
[0008] Furthermore, there are multiple air inlets and outlets, each arranged in a row on the base layer.
[0009] Furthermore, the path that runs synchronously between the underside of the cover strip and the newly produced photosensitive material plate is called the synchronization path. This device also includes a humidifier with a moisture outlet connected to an air blowing box, which is a front air blowing box. The front air blowing box is mounted on the device frame and has a lower front air blowing box opening that contacts the base layer of the underside of the cover strip at the middle position of the synchronization path.
[0010] The technical solution of the photosensitive material plate production method of the present invention is as follows: The photosensitive material plate production method produces a photosensitive material plate including a substrate and a photosensitive material layer on the substrate. The photosensitive material plate production method is to cover the photosensitive material layer with a covering component immediately after the photosensitive material plate is produced.
[0011] Furthermore, during the covering process, the gas in contact with the photosensitive material layer also maintains a relatively low oxygen concentration.
[0012] Furthermore, the covering process takes 60-90 seconds.
[0013] Furthermore, during the later stages of the covering process, the gas in contact with the photosensitive material layer still contains a high concentration of alcohol vapor.
[0014] The beneficial effects of this invention are: the photosensitive material plate production method has the advantages of producing photosensitive material plates with more printing times and clearer images; the photosensitive material plate coating device can realize the above-mentioned photosensitive material plate production method. Attached Figure Description
[0015] Figure 1 This is a side view of the photosensitive material plate coating device of the present invention.
[0016] Figure 2 yes Figure 1 Enlarged diagram of point A in the diagram.
[0017] Figure 3 yes Figure 1 Enlarged diagram of point B in the image.
[0018] Figure 4 yes Figure 2 A schematic diagram of the C-C direction in the diagram.
[0019] Figure 5 yes Figure 2 A schematic diagram of the cross-sectional structure along the D-D direction.
[0020] Figure 6 yes Figure 2 A schematic diagram of the E-E direction in the diagram.
[0021] Figure 7 yes Figure 3 A schematic diagram of the K-K direction.
[0022] The components include: 1. Frame; 2. Conveying rollers; 3. Conveying belt; 4. Nozzle; 51. Covering belt; 511. Side protrusion; 512. Horizontal protrusion; 513. Base layer; 52. Covering roller; 521. Front covering roller; 522. Rear covering roller; 53. Air inlet; 54. Exhaust outlet; 55. Nitrogen tank; 56. Nitrogen output pipe; 57. Rear air box; 571. Rear air box opening; 61. Humidifier; 62. Front air box; 621. Front air box opening; 7. Photosensitive material plate. Detailed Implementation
[0023] To better understand this invention, the following description, in conjunction with the accompanying drawings, will provide further details.
[0024] As shown in the figure, the photosensitive material plate coating device includes a frame 1, a conveyor roller 2 driven by a conveyor motor on the frame, and a conveyor belt 3 for the photosensitive material plate on the conveyor roller. The conveyor roller is a component for conveying the substrate and the photosensitive material plate. The substrate and the photosensitive material plate are conveyed from back to front under the action of the conveyor roller. The frame also has a photosensitive paint coating station, and a photosensitive paint nozzle 4 facing the coating station. Its characteristic feature is that a cover belt 51 driven by a roller connected to a motor 52 is also installed on the frame. The machine includes a front cover roller 521 and a rear cover roller 522. The cover belt is made of rubber and includes a base layer 513 and protrusions on the base layer. The protrusions include side protrusions 511 on the left and right sides of the base layer and multiple transverse protrusions 512 spaced apart on the base layer with the length direction in the left and right direction. Under the action of the cover motor, the bottom of the cover belt and the newly produced photosensitive material plate move synchronously. The side protrusions contact the sides of the conveyor belt, and the transverse protrusions contact the newly produced photosensitive material plate.
[0025] The nozzle is connected to a high-pressure photosensitive coating, enabling the spraying of the photosensitive coating.
[0026] The above-mentioned configuration of the present invention enables the photosensitive material board to be covered with a covering tape after it has been produced, making the photosensitive coating more stable and homogeneous on the substrate, thus achieving the purpose of the present invention.
[0027] Furthermore, the time it takes for the underside of the covering strip and the newly produced photosensitive material plate to operate synchronously is 60-90 seconds.
[0028] This allows the produced photosensitive material boards to achieve better results.
[0029] Furthermore, a covering unit is formed between two side protrusions and two transverse protrusions on the covering strip. The base layer of a covering unit also has a front air inlet 53 and a rear exhaust port 54. The device also includes a nitrogen tank 55, which is connected to a nitrogen output pipe 56. The nitrogen output pipe is connected to an air blowing box, which is a rear air blowing box 57. The rear air blowing box is mounted on the device frame and has a rear air blowing box opening 571 at the bottom. The rear air blowing box opening contacts the base layer of the lower part of the covering strip and is close to the nozzle.
[0030] The above-mentioned configuration of the present invention enables the gas in the covered photosensitive coating to contain more nitrogen and less oxygen, resulting in less oxidation of the components in the photosensitive coating before solidification, which in turn makes the printed pattern clearer when using this photosensitive material plate.
[0031] Furthermore, there are multiple air inlets and outlets, each arranged in a row on the base layer.
[0032] The above-mentioned configuration of the present invention enables the gas to enter the covering unit more uniformly and quickly.
[0033] Furthermore, the path that runs synchronously between the underside of the cover strip and the newly produced photosensitive material plate is called the synchronization path. This device also includes a humidifier 61, which has a moisture outlet. The moisture outlet is connected to an air blowing box, which is a front air blowing box 62. The front air blowing box is mounted on the device frame and has a lower front air blowing box opening 621. The front air blowing box opening contacts the base layer of the underside of the cover strip at the middle position of the synchronization path.
[0034] When the photosensitive material plate coating apparatus of the present invention is in use, the humidifier can hold alcohol. The humidifier is a device in the prior art. The humidifier can make the alcohol produce alcohol vapor. The alcohol vapor enters the coating unit, so that the later stage of photosensitive material plate solidification is carried out in an environment with alcohol vapor, which is beneficial to the homogeneity of photosensitive coating and can increase the number of times the photosensitive material plate can be used.
[0035] The technical solution of the photosensitive material plate production method of the present invention is as follows: The photosensitive material plate production method produces a photosensitive material plate including a substrate and a photosensitive material layer on the substrate. The photosensitive material plate production method is to cover the photosensitive material layer with a covering component immediately after the photosensitive material plate is produced.
[0036] Under the same conditions, using the above method, compared to not covering the photosensitive material plate after production, increases the number of prints by 10-15%, and the printed pattern is clearer.
[0037] Furthermore, during the covering process, the gas in contact with the photosensitive material layer also maintains a relatively low oxygen concentration.
[0038] This results in a clearer pattern.
[0039] Furthermore, the covering process takes 60-90 seconds.
[0040] Furthermore, during the later stages of the covering process, the gas in contact with the photosensitive material layer still contains a high concentration of alcohol vapor.
[0041] Such photosensitive material plates can achieve a higher printing rate, for example, by 5-7%, resulting in clearer printed patterns. They can also extend the shelf life of the photosensitive material plates, generally by 30-40 days.
[0042] It should be noted that the above-described embodiments of the photosensitive material plate coating apparatus and the photosensitive material plate production method, as well as their beneficial effects, can complement and illustrate each other.
[0043] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present invention are covered by the patent scope of the present invention.
Claims
1. A photosensitive material plate coating apparatus, comprising a frame, on which a conveyor roller driven by a conveyor motor is mounted, the conveyor roller having a conveyor belt for the photosensitive material plate, the conveyor roller being a component for conveying a substrate and a photosensitive material plate, the substrate and the photosensitive material plate being conveyed from back to front under the action of the conveyor roller, the frame also having a photosensitive paint coating station, and a photosensitive paint nozzle facing the coating station; characterized in that: The device frame is also equipped with a cover belt driven by rollers connected to a motor. This roller is a cover roller, and the motor is a cover motor. The cover roller includes a front cover roller and a rear cover roller. The cover belt is made of rubber and includes a base layer and protrusions on the base layer. The protrusions include side protrusions on the left and right sides of the base layer and multiple transverse protrusions spaced apart on the base layer with the length direction in the left and right direction. Under the action of the cover motor, the cover belt and the newly produced photosensitive material plate move synchronously. The side protrusions contact the sides of the conveyor belt, and the transverse protrusions contact the newly produced photosensitive material plate.
2. The photosensitive material plate coating apparatus according to claim 1, characterized in that: On the cover strip, a cover unit is formed between two side protrusions and two transverse protrusions. The base layer of a cover unit also has a front air inlet and a rear exhaust port. The device also includes a nitrogen tank, which is connected to a nitrogen output pipe. The nitrogen output pipe is connected to an air blowing box, which is a rear air blowing box. The rear air blowing box is mounted on the device frame and has a lower rear air blowing box opening. The rear air blowing box opening contacts the base layer of the lower part of the cover strip and is close to the nozzle.