Classifications

• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
  • G03F9/00—Registration or positioning of originals, masks, frames, photographic sheets or textured or patterned surfaces, e.g. automatically

Definitions

• the present invention relates to a printing method, and more particularly to a method of reworking after printing.
• Printing is one of the four great inventions in ancient China. It is a technique for rapidly copying images or text manuscripts. More importantly, printing is the forerunner of modern human civilization. Because of the invention of knowledge before the invention of printing Copying by manpower is not only time-consuming, laborious, but also prone to errors. By printing a large number of copies of relevant books, knowledge can be widely disseminated.
• printing can be classified into lithographic printing, letterpress printing, gravure printing and screen printing, etc., and the first step of printing is to make a plate, and then printing can be carried out, and the plate-making process is required for plate-making to form on the plate.
• Pattern such as Chinese patent CN No. 202948248, the "screen version of the film fixture", comprising a transparent base, a positioning pin and a transparent platform, drawing a positioning line on the transparent platform, and then using the positioning pin to position a screen in the transparent On the light base, and then attaching the negative film, performing exposure etching and the like can be completed.
• the main object of the present invention is to solve the problems of low printing accuracy, long alignment time, and high cost.
• the present invention provides a method of reworking after printing, comprising the steps of:
• Step S1 forming a basic pattern on a product to be processed
• Step S2 obtaining an electronic image of the basic pattern by using an image capturing unit
• Step S3 correcting the absolute position information of a processing pattern by a computer electrically connected to the image capturing unit to correspond to the electronic image, and thereby forming a processing plate, the processing plate having a corresponding image Reprocessing zone;
• Step S4 input the to-be-processed product into a processing unit electrically connected to the computer to process the reworked area of the processed plate and the position of the to-be-processed product.
• step S1 the basic pattern is formed in a group selected from the group consisting of lithography and screen printing.
• step S2 the image acquisition unit acquires the electronic image by scanning.
• step S3 the following steps are further included:
• Step S3A correcting, by the computer, the processing pattern corresponds to the to-be-printed product
• Step S3B sequentially forming a photoresist and a patterned barrier layer on the processing plate, the processed plate being a screen;
• Step S3C etching the photoresist to form a patterned mask, and the patterned mask has a rework area corresponding to the processing pattern.
• step S3B the patterned barrier layer is formed by spraying.
• the material of the photoresist is phenolic resin, epoxy resin, polyisoprene rubber or a combination thereof.
• step S4 the following steps are further included:
• Step S4A inputting the to-be-processed product into the processing processing unit, the processing processing unit correspondingly positioning the reworked area of the processed plate with the processing position of the to-be-processed product;
• Step S4B coating a coating on the patterned shield, the coating forming the processing pattern on the workpiece to be processed through the patterned shielding and the processing plate.
• the processing plate is selected from any one of a lithographic plate, a bronzing plate, an embossed plate, and a die plate.
• the invention replaces the traditional use of manual typesetting by computer correction, can increase the printing precision and reduce the waste of time, and further avoids the use of the film, and can effectively reduce the production cost.
• FIG. 1 is a schematic flow chart of a preferred embodiment of the present invention.
• FIG. 2 is a functional block diagram of a preferred embodiment of the present invention.
• 3A-3F are schematic diagrams showing a manufacturing process according to a preferred embodiment of the present invention.
• the present invention is a method for re-processing after printing, comprising the following steps:
• Step S1 As shown in FIG. 3A and FIG. 3B, a basic pattern 60 is formed on a workpiece 10, and the basic pattern 60 may be formed by lithography or screen 40 printing, etc., wherein FIG. 3B It is a cross-sectional view taken along line AA in Fig. 3A, and the thickness of the base pattern 60 is extremely smaller than that of the article to be processed 10, and the thickness thereof will be thicker for the sake of illustration.
• the basic pattern 60 is exemplified by the word "middle".
• Step S2 The electronic image of the basic pattern 60 is obtained by an image capturing unit 70.
• the image capturing unit 70 obtains the electronic image by scanning, but may also use photography. The method is completed, not limited to this.
• Step S3 As shown in FIG. 2 and FIG. 3C and FIG. 3D, the image capturing unit 70 is electrically connected to a computer 80, and the absolute position information of a processing pattern 20 is corrected by the computer 80 to correct
• the electronic image is formed on a processing plate 40, and the processing plate 40 has a rework area 41 corresponding to the electronic image, and the processing plate 40 can be a screen, a lithography, a bronzing plate, an embossed plate. , a knife version, etc., and in this embodiment, a screen is taken as an example.
• computer 80 correction the accuracy of printing can be increased, the time of typesetting can be reduced, and the use of negatives can be reduced.
• step S1 if it is produced by lithography, the product to be processed 10 (usually paper or cloth) is slightly deformed by heat expansion and contraction, and has a slight change in length or width, if directly If it is processed again, there will be a problem of inaccurate alignment. Therefore, it is necessary to perform position confirmation using step S3.
• step S3 the following steps are included to achieve the goal:
• Step S3A The processing pattern 20 is corrected by the computer 80 to correspond to the article 10 to be processed.
• Step S3B After the correction, the corresponding processing plate 40 is formed.
• a photoresist 32 and a patterned barrier layer 33 are sequentially formed on the processing plate 40.
• the patterned barrier layer 33 can be sprayed.
• Way of forming can use inkjet technology (ink The way of jet) achieves the effect of fine spraying, and as such, the patterned barrier layer 33 is formed to be finer.
• the material of the photoresist 32 may be phenolic resin, epoxy resin, polyisoprene rubber or a combination thereof.
• Step S3C as shown in FIG. 3D, the photoresist 32 is exposed.
• the positive photoresist 32 is used to soften the irradiated photoresist 32, but the negative photoresist 32 may also be used. limit.
• the photoresist 32 is etched to remove the softened photoresist 32 and the patterned barrier layer 33 to form the patterned shield 30, and the patterned shield 30 has a corresponding corresponding to the processed pattern 20. Reprocessing zone 41.
• Step S4 Finally, as shown in FIG. 3E, the to-be-processed product 10 is input into a processing unit 90 electrically connected to the computer 80, and the processing unit 90 corresponds to the processing plate 40 and the to-be-processed product.
• the position of 10 is processed to process the product to be processed 10, and in the screen printing of this embodiment, the following steps are included:
• Step S4A The workpiece 10 to be processed is input into the processing unit 90, and the processing unit 90 positions the rework area 41 of the processing plate 40 and the workpiece 10 in a corresponding position.
• Step S4B coating a coating 50 on the patterned shield 30, the coating 50 forms the processing pattern 20 on the workpiece 10 through the patterned shield 30 and the processing plate 40, and then, as shown in FIG. 3F It is shown that the processing plate 40 is removed, and the processing pattern 20 has a certain thickness corresponding to the processing plate 40. If viewed from the front, it is the same as FIG. 3A, but the difference in thickness can be felt by touching with a finger. The thickness in the figure will be drawn thicker to facilitate the illustration.
• the processing plate 40 can also be a digital version stored in the computer 80.
• a digital version stored in the computer 80.
• the digital version is directly sprayed, so that the processing plate 40 does not need to be actually produced, and the cost can be reduced and the process efficiency can be improved.
• the present invention has the following features:
• the patterning barrier layer is formed by spraying, which can increase the fineness and effectively reduce the cost of fabricating the patterned barrier layer.
• the traditional negative film is not required for the exposure action, thereby saving the consumption of the negative film and further reducing the cost.
• the position of the basic pattern is confirmed by scanning first, and then the position to be printed is confirmed by the computer and corrected to ensure that the position of the screen printing corresponds to the position of the basic pattern, thereby avoiding the problem of printing error.

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• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Manufacture Or Reproduction Of Printing Formes (AREA)
• Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
• Photosensitive Polymer And Photoresist Processing (AREA)
• Editing Of Facsimile Originals (AREA)
• Inking, Control Or Cleaning Of Printing Machines (AREA)
• Printing Plates And Materials Therefor (AREA)
• Manufacturing Of Printed Wiring (AREA)

Priority Applications (3)

Applications Claiming Priority (1)

Publications (1)

Family

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Family Applications (1)

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Citations (4)

Family Cites Families (3)

• 2018
  • 2018-02-13 WO PCT/CN2018/076600 patent/WO2019157615A1/zh active Application Filing
  • 2018-02-13 CN CN201880003802.4A patent/CN110383180B/zh active Active
  • 2018-02-13 JP JP2019526562A patent/JP6952114B2/ja active Active

Patent Citations (4)

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