CN112874127A - Process method for preparing seamless laser mould pressing roller - Google Patents
Process method for preparing seamless laser mould pressing roller Download PDFInfo
- Publication number
- CN112874127A CN112874127A CN202110023626.4A CN202110023626A CN112874127A CN 112874127 A CN112874127 A CN 112874127A CN 202110023626 A CN202110023626 A CN 202110023626A CN 112874127 A CN112874127 A CN 112874127A
- Authority
- CN
- China
- Prior art keywords
- roller
- laser
- copper
- seamless
- plating
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
- B41C1/14—Forme preparation for stencil-printing or silk-screen printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
- B41C1/14—Forme preparation for stencil-printing or silk-screen printing
- B41C1/145—Forme preparation for stencil-printing or silk-screen printing by perforation using an energetic radiation beam, e.g. a laser
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N1/00—Printing plates or foils; Materials therefor
- B41N1/04—Printing plates or foils; Materials therefor metallic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N1/00—Printing plates or foils; Materials therefor
- B41N1/16—Curved printing plates, especially cylinders
- B41N1/20—Curved printing plates, especially cylinders made of metal or similar inorganic compounds, e.g. plasma coated ceramics, carbides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N1/00—Printing plates or foils; Materials therefor
- B41N1/24—Stencils; Stencil materials; Carriers therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N3/00—Preparing for use and conserving printing surfaces
- B41N3/03—Chemical or electrical pretreatment
- B41N3/032—Graining by laser, arc or plasma means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N2207/00—Location or type of the layers in shells for rollers of printing machines
- B41N2207/02—Top layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N2207/00—Location or type of the layers in shells for rollers of printing machines
- B41N2207/06—Backcoats; Back layers; Bottom layers
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Plasma & Fusion (AREA)
- Laser Beam Processing (AREA)
Abstract
A process method for preparing seamless laser mould pressing rollers comprises the following steps: the method comprises the steps of manufacturing a high-precision seamless steel roller, carrying out surface treatment after copper plating and copper plating on the steel roller, cleaning the roller surface, coating photoresist on the roller surface, manufacturing a laser seamless image file, carrying out laser engraving on the roller surface, cleaning the engraved roller surface and carrying out chromium plating. Wherein the dynamic balance precision grade of the steel roller processing is less than 15 g.mm/kg; the thickness of the copper plating is 200-300 μm, and the surface hardness of the copper plating is 195-205 HV; when the size of a copper surface is turned, the eccentricity of a rotor is less than 15 mu m, the ovality of the copper surface is less than 10 mu m, and the roughness of the polished copper surface is Ra0.01-0.03 mu m; wherein the power of the laser for carving is 35-100W. The invention solves the problems that the laser film produced by die pressing has cracks and the visual effect of the product is damaged because the complete seamless connection can not be realized by the traditional manufacturing process of the laser die pressing roller of the nickel plate.
Description
Technical Field
The invention relates to the technical field of gravure printing, in particular to a process method for preparing a seamless laser mould pressing roller.
Background
At present, the main manufacturing process of the nickel plate laser mould pressing plate roller adopted in the market is as follows: firstly, manufacturing a seamless steel roller base body, and plating a layer of metal film which can be used for etching on the base body; then, coating a layer of photoresist with a thickness suitable for drying on the substrate coated with the film; after drying, directly introducing a pattern to be processed by using a maskless photoetching machine, and performing laser direct writing exposure; etching by using etching equipment and an etching process of corresponding metal until the metal film is completely etched to the surface of the substrate; and finally, removing the residual photoresist for etching the mask by using a degumming agent or an organic solvent. A single nickel plate with laser holographic pictures and texts can be manufactured through the process, then the nickel plate is pasted on a die pressing roller, and the roller pasted with the nickel plate is used for die pressing processing, so that a laser film product is manufactured. However, because the nickel plate is rolled and attached on the roller, a plate connecting seam is left, and complete seamless connection cannot be realized. The laser film produced by the plate roller mould pressing subsequently has cracks which can destroy the visual effect of the product, so that defective products must be manually selected as waste, the production efficiency and the product percent of pass are greatly influenced, and the production cost is increased. Moreover, the hardness of the nickel plate is HV160 to 180, and the nickel plate is also poor in durability. Therefore, the invention is important to invent a process method of the laser mould pressing roller capable of really realizing seamless connection.
Disclosure of Invention
The invention aims to provide a process method for preparing a seamless laser mould pressing roller, which solves the problems that the traditional nickel plate laser mould pressing roller manufacturing process cannot realize complete seamless connection, so that a laser film produced by mould pressing has cracks and the visual effect of a product is damaged.
The technical scheme adopted by the invention for solving the technical problems is as follows:
manufacturing a high-precision seamless steel roller: the seamless steel tube is processed by adopting a seamless steel tube, and comprises the working procedures of cutting, turning an outer circle, turning a flange, welding a flange, rough and finish turning, trimming a hole and chamfering, measuring balance, grinding and checking according to a roller body processing size diagram provided by a laser film factory, wherein the dynamic balance precision grade of the steel roller processing is less than 15 g.mm/kg;
surface treatment after copper plating and copper plating of a steel roller: plating a copper layer with the thickness of 150-300 mu m on the processed steel roller, wherein the surface hardness of the plated copper is 195-205 HV, and performing driving, grinding and polishing treatment on the copper surface, wherein the eccentricity of a rotor is less than 15 mu m when the size of the copper surface is turned, the ellipticity of the copper surface after the size of the copper surface is turned is less than 10 mu m, and the roughness of the polished copper surface is Ra0.01-0.03 mu m;
cleaning the roller surface: cleaning the surface of the roller by using a mixed solution of ethanol, isopropanol and butanone;
coating a photoresist: coating a layer of uniform photoresist on the cleaned roller surface, wherein the thickness of the photoresist is 3-5 mu m;
manufacturing a laser seamless connection image file: adopting image processing software to process the file according to the requirements of a laser film factory to manufacture seamless pictures and texts;
laser engraving: according to different pictures and texts, adopting corresponding engraving process parameters, and carrying out laser engraving on the roll surface, wherein the laser power for engraving is 35-100W;
cleaning the surface of the plate roller: removing the photoresist and oxide on the surface of the engraved printing roller by adopting a chemical cleaning method;
and (3) chromium plating: and plating a chromium layer on the surface of the plate roller.
Further, in order to strengthen the combination of steel and copper, the surface of the finished steel roller is plated with a layer of nickel with the thickness of 5 μm before the steel roller is plated with copper and the surface treatment is carried out after the copper plating.
Further, in order to facilitate subsequent die pressing and ensure the processing precision, when the laser image file is manufactured, the space between the pictures and the texts is set to be 10-40 μm according to the thickness of the pictures and the texts.
Further, in order to increase the wear resistance and the corrosion resistance of the roller, in the chromium plating step, the thickness of chromium plating is 10-25 mu m, and the hardness of the chromium layer is 900-1200 HV.
The invention has the beneficial effects that: by utilizing the process method provided by the invention, the processed nickel plate does not need to be rolled and adhered on the surface of the roller, but the seamless picture and text can be directly carved by laser after the copper and the photoresist are plated on the surface of the steel roller. Because the pictures and texts on the roller are in seamless connection, the laser film produced by adopting the plate roller die pressing is the seamless laser film, the attractiveness of the laser film product is ensured, and meanwhile, the production efficiency is high, the product qualification rate is high, the production cost is low and the durability is good.
Detailed Description
A process method for preparing seamless laser molding roller comprises the following steps:
the method comprises the steps of cutting, turning an outer circle, turning a rim, welding a flange, rough and finish turning, trimming a hole and chamfering, measuring balance, grinding and checking according to a roller body machining size diagram provided by a laser film factory, wherein the influence on a laser engraving effect due to uneven subsequent copper plating thickness is avoided in order to guarantee the precision of roller body machining, and the dynamic balance precision grade of roller body machining needs to be less than 15 g.mm/kg.
In order to strengthen the combination of steel and copper, a layer of nickel with the thickness of 5 mu m is plated on the surface of the finished steel roller before the steel roller is plated with copper and the surface of the steel roller is treated after being plated with copper.
Then carrying out surface treatment after copper plating and copper plating on the steel roller, plating a copper layer with the thickness of 150-300 mu m on the processed steel roller in order to ensure the requirement of subsequent copper surface engraving, wherein the surface hardness of the copper plating is 195-205 HV, and carrying out driving, grinding and polishing treatment on the copper surface after the copper plating is finished; in order to ensure the fineness of the copper surface and the subsequent copper surface carving effect, the eccentricity of the rotor is less than 15 mu m when the size of the copper surface is lathed, the ovality of the copper surface after the size of the copper surface is lathed is less than 10 mu m, and the roughness of the copper surface after polishing is Ra0.01-0.03 mu m.
And cleaning the roller surface by using a mixed solution of ethanol, isopropanol and butanone to remove impurities such as oil stains on the surface of the copper roller.
And then coating photoresist on the copper surface of the roller body, and coating a layer of uniform photoresist on the cleaned roller surface, wherein the thickness of the photoresist is 3-5 mu m. The effect of the method is to weaken the reflection on the copper surface and improve the uniformity of the engraving quality of the copper surface.
Laser seamless image file making, namely performing file processing by adopting image processing software according to the requirements of a laser film factory to make seamless image-texts; in order to facilitate subsequent die pressing and ensure the processing precision, the space between the positive and negative of the pictures and texts is set to be 10-40 mu m according to the thickness of the pictures and texts when the laser image file is manufactured.
And then carrying out laser engraving, adopting corresponding engraving process parameters according to different pictures and texts to achieve the optimal effect, and carrying out laser engraving on the roller surface, wherein the laser power for engraving is 35-100W.
And cleaning the roller surface after the laser engraving is finished, and removing photoresist and oxides on the surface of the engraved plate roller by adopting a chemical cleaning method, so that the binding force of copper and chromium is increased conveniently.
And finally, carrying out chromium plating on the surface of the plate roller, and coating a chromium layer on the surface of the plate roller, so that the wear resistance and the corrosion resistance of the roller can be improved. In order to increase the wear resistance and the corrosion resistance of the roller and prolong the service life, the thickness of the chromium plating is 10-25 mu m, and the hardness of the chromium layer is 900-1200 HV. The hardness of a nickel plate used in the traditional processing method is generally 160-180 HV, so that chromium is much stronger than nickel in the wear resistance of the surface of the plate roller.
The above exemplary descriptions of the process for preparing seamless laser embossing roller according to the present invention, it is obvious that the specific implementation of the present invention is not limited by the above manner, and it falls within the scope of the present invention as long as various improvements made by the method and technical solution of the present invention are adopted, or the present invention can be directly applied to other occasions without any improvement.
Claims (4)
1. A process method for preparing seamless laser mould pressing roller is characterized by comprising the following steps:
(a) manufacturing a high-precision seamless steel roller: the seamless steel tube is processed by adopting a seamless steel tube, and comprises the working procedures of cutting, turning an outer circle, turning a rim, welding a flange, rough and finish turning, trimming a hole and chamfering, measuring balance, grinding and inspecting according to a roller body processing size diagram provided by a laser film factory, wherein the dynamic balance precision grade of the steel roller processing is less than 15 g.mm/kg;
(b) surface treatment after copper plating and copper plating of a steel roller: plating a copper layer with the thickness of 150-300 mu m on the processed steel roller, wherein the surface hardness of the plated copper is 195-205 HV, and performing machining, grinding and polishing treatment on the copper surface, wherein the eccentricity of a rotor is less than 15 mu m when the size of the copper surface is machined, the ovality of the copper surface after the size of the copper surface is machined is less than 10 mu m, and the roughness of the polished copper surface is Ra0.01-0.03 mu m;
(c) cleaning the roller surface: cleaning the surface of the roller by using a mixed solution of ethanol, isopropanol and butanone;
(d) coating a photoresist: coating a layer of uniform photoresist on the cleaned roller surface, wherein the thickness of the photoresist is 3-5 mu m;
(e) manufacturing a laser seamless connection image file: adopting image processing software to process files according to the requirements of a laser film factory to manufacture seamless pictures and texts;
(f) laser engraving: according to different pictures and texts, adopting corresponding engraving process parameters, and carrying out laser engraving on the roll surface, wherein the laser power for engraving is 35-100W;
(g) cleaning the surface of the plate roller: removing the photoresist and the oxide on the surface of the engraved plate roller by adopting a chemical cleaning method;
(h) and (3) chromium plating: and plating a chromium layer on the surface of the plate roller.
2. The process of claim 1 wherein prior to step (b), the finished steel roll is coated with nickel to a thickness of 5 μm.
3. The process of claim 1, wherein in step (e), the space between the laser image files is set to 10-40 μm according to the size of the image-text during the production of the laser image files.
4. The process for preparing a seamless laser embossing roller according to claim 1, wherein in the step (h), the thickness of the chrome plating is 10 to 25 μm, and the hardness of the chrome plating is 900 to 1200 HV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110023626.4A CN112874127B (en) | 2021-01-08 | 2021-01-08 | Process method for preparing seamless laser mould pressing roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110023626.4A CN112874127B (en) | 2021-01-08 | 2021-01-08 | Process method for preparing seamless laser mould pressing roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112874127A true CN112874127A (en) | 2021-06-01 |
| CN112874127B CN112874127B (en) | 2021-10-01 |
Family
ID=76047228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110023626.4A Active CN112874127B (en) | 2021-01-08 | 2021-01-08 | Process method for preparing seamless laser mould pressing roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112874127B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113370640A (en) * | 2021-07-13 | 2021-09-10 | 温州上运制版有限公司 | Plate making process of gravure plate roller |
| CN116871818A (en) * | 2023-04-13 | 2023-10-13 | 清远南方制版科技有限公司 | Manufacturing method of plate roller with skin feel effect |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4912824A (en) * | 1989-03-14 | 1990-04-03 | Inta-Roto Gravure, Inc. | Engraved micro-ceramic-coated cylinder and coating process therefor |
| DE10036995A1 (en) * | 2000-07-29 | 2002-02-07 | Heidelberger Druckmasch Ag | Process for engraving a printing form with a laser beam |
| CN102152600A (en) * | 2010-12-09 | 2011-08-17 | 黄山精工凹印制版有限公司 | Method for producing high-definition laser gravure plate roller |
| CN103395277A (en) * | 2013-07-31 | 2013-11-20 | 汕头市精工东捷制版有限公司 | Manufacturing method of high-definition laser direct carving gravure plate |
| CN103481638A (en) * | 2013-09-27 | 2014-01-01 | 东莞运城制版有限公司 | Printing roller for laser paper printing and manufacture process thereof |
| CN203381319U (en) * | 2013-07-23 | 2014-01-08 | 上海宏盾防伪材料有限公司 | Round roller provided with seamless laser pattern and used for direct molding |
| CN103507393A (en) * | 2013-09-26 | 2014-01-15 | 上海宏盾防伪材料有限公司 | Holographic BOPP mold pressing seamless plate roller and manufacturing method thereof |
| CN203567393U (en) * | 2013-09-27 | 2014-04-30 | 东莞运城制版有限公司 | Plate roller used for laser paper printing |
| CN104760403A (en) * | 2014-01-02 | 2015-07-08 | 黄山精工凹印制版有限公司 | Making method of printed circuit board roller |
| CN107175890A (en) * | 2017-05-10 | 2017-09-19 | 上海运城制版有限公司 | A kind of laser aufhellung roller and its manufacture method |
-
2021
- 2021-01-08 CN CN202110023626.4A patent/CN112874127B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4912824A (en) * | 1989-03-14 | 1990-04-03 | Inta-Roto Gravure, Inc. | Engraved micro-ceramic-coated cylinder and coating process therefor |
| DE10036995A1 (en) * | 2000-07-29 | 2002-02-07 | Heidelberger Druckmasch Ag | Process for engraving a printing form with a laser beam |
| CN102152600A (en) * | 2010-12-09 | 2011-08-17 | 黄山精工凹印制版有限公司 | Method for producing high-definition laser gravure plate roller |
| CN203381319U (en) * | 2013-07-23 | 2014-01-08 | 上海宏盾防伪材料有限公司 | Round roller provided with seamless laser pattern and used for direct molding |
| CN103395277A (en) * | 2013-07-31 | 2013-11-20 | 汕头市精工东捷制版有限公司 | Manufacturing method of high-definition laser direct carving gravure plate |
| CN103507393A (en) * | 2013-09-26 | 2014-01-15 | 上海宏盾防伪材料有限公司 | Holographic BOPP mold pressing seamless plate roller and manufacturing method thereof |
| CN103481638A (en) * | 2013-09-27 | 2014-01-01 | 东莞运城制版有限公司 | Printing roller for laser paper printing and manufacture process thereof |
| CN203567393U (en) * | 2013-09-27 | 2014-04-30 | 东莞运城制版有限公司 | Plate roller used for laser paper printing |
| CN104760403A (en) * | 2014-01-02 | 2015-07-08 | 黄山精工凹印制版有限公司 | Making method of printed circuit board roller |
| CN107175890A (en) * | 2017-05-10 | 2017-09-19 | 上海运城制版有限公司 | A kind of laser aufhellung roller and its manufacture method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113370640A (en) * | 2021-07-13 | 2021-09-10 | 温州上运制版有限公司 | Plate making process of gravure plate roller |
| CN116871818A (en) * | 2023-04-13 | 2023-10-13 | 清远南方制版科技有限公司 | Manufacturing method of plate roller with skin feel effect |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112874127B (en) | 2021-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112874127B (en) | Process method for preparing seamless laser mould pressing roller | |
| US4879791A (en) | Method of producing a pitted roll for an offset litho printing press | |
| CN103395277A (en) | Manufacturing method of high-definition laser direct carving gravure plate | |
| CN102152600A (en) | Method for producing high-definition laser gravure plate roller | |
| US20050258136A1 (en) | Method for providing surface texturing of aluminum sheet, substrate for lithographic plate and lithographic plate | |
| CN107443875A (en) | A kind of preparation technology of gravure printing roller | |
| KR20080080290A (en) | Microstructured embossing drum and articles made therefrom | |
| CN105880935A (en) | Manufacturing method for intaglio roller | |
| CN1491794A (en) | Method for producing printing plate of gravure printing | |
| CN107225370B (en) | A kind of preparation process embossing roller | |
| CN111775072B (en) | Diamond roller machining process for special-shaped grinding surface | |
| CN112873920B (en) | Processing technology for preparing seamless laser packaging film | |
| CN106994817A (en) | A kind of preparation method of roller | |
| TWI719227B (en) | Gravure plate-making roll polishing device and method | |
| CN112848642A (en) | Manufacturing method of high-precision gravure printing roller | |
| CN114618740A (en) | Coating roll and processing method thereof | |
| CN111941996A (en) | Full-automatic intelligent integrated plate roller production line and production process thereof | |
| JP3964741B2 (en) | NC lathe measurement and printing cylinder processing method for printing of used straight plate type gravure printing rolls | |
| CN112139767A (en) | Method for processing and manufacturing embossing plate roller | |
| KR20200000301A (en) | High hardness gravure printing roller manufacturing method | |
| JP2004058483A (en) | Intaglio plate and its manufacturing method | |
| CN219806574U (en) | Rotating shaft for preventing chromium liquid from advancing and retreating inside plate roller | |
| JP2004268538A (en) | Method for manufacturing gravure printing roll | |
| JP4530395B2 (en) | Gravure plate making factory | |
| CN115071249B (en) | Automatic production method of printing die |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |