TW201827954A - Method for reprocessing after printing replacing traditional manual typesetting with computer calibration to improve printing accuracy - Google Patents

Abstract

A method for re-processing after printing, in which a basic pattern is first formed on a to-be-processed workpiece, and then an electronic image of the basic pattern is acquired through an image capturing unit, and a computer electrically connected to the image capturing unit is used to calibrate the absolute position information of a processing pattern so as to correspond to the electronic image, and to form a processing plate. The processing plate is provided with a reprocessing area corresponding to the electronic image, finally, the to-be-processed workpiece is input into a processing and treating unit electrically connected to the computer so as to correspond the reprocessing area of the the processing plate and the position of the to-be-processed workpiece for processing. By way of replacing the traditional manual typesetting with computer calibration, the printing accuracy can be improved and the time to be wasted can be reduced. In addition, direct output after computer calibration can reduce the amount of negative films to be used.

Description

Method of reprocessing after printing

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 manuscripts in large quantities. More importantly, printing is the forerunner of modern human civilization, because the dissemination of knowledge was mainly 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 related books, knowledge can be widely disseminated.

At present, 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. a pattern, such as the "Web version of the film fixture" of the Chinese Patent No. CN 202948248, which comprises a transparent base, a positioning pin and a transparent platform, on which the positioning line is drawn, and then the positioning pin is used A screen is positioned on the light-transmissive base, and then the backsheet is attached, and a process such as exposure etching is performed.

Although this method will first draw the positioning line, it still needs to use manual to perform the alignment typesetting, which is easy to cause the error in the alignment, reduce the printing precision, and requires a long alignment time, in addition to this. It is also necessary to use a film exposure method to perform plate making, which consumes a lot of film material problems and increases printing costs. Therefore, how to improve the accuracy, reduce the alignment time and reduce the cost is a big issue.

The main object of the present invention is to solve the problems of low printing accuracy, long alignment time, and high cost.

In order to achieve the above object, the present invention provides a method for re-processing after printing, comprising the following steps: S1: forming a basic pattern on a workpiece to be processed; S2: obtaining an electronic image of the basic pattern through an image capturing unit S3: correcting the absolute position information of a processing pattern by using 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 one a reworking area of the electronic image; and S4: inputting the to-be-processed product into a processing unit electrically connected to the computer to correspond to the position of the reworked area and the to-be-processed product of the processed plate machining.

In summary, the present invention replaces the traditional use of manual typesetting by computer correction, which can increase the precision of printing and reduce the waste of time, and further avoid the use of negative film, and can effectively reduce the production cost.

The detailed description and technical content of the present invention will now be described as follows:

Referring to FIG. 1 to FIG. 3F, 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 printing, etc., wherein 3B is a cross-sectional view taken along line AA of FIG. 3A, and the thickness of the base pattern 60 is extremely smaller than that of the article to be processed 10. For the sake of illustration, the thickness thereof will be thicker. In the present embodiment, the basic pattern 60 is exemplified by the word "middle".

Step S2: Obtain an electronic image of the basic pattern 60 through an image capturing unit 70. Please refer to FIG. 2 in the embodiment. In this embodiment, the image capturing unit 70 obtains the electronic image by scanning. , but it can also be done by photography, etc., 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 correction of the processing pattern 20 is corrected by the computer 80 correction. Position information to correspond to the electronic image, and thereby forming 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 , bronzing plate, embossed plate, knife plate, etc., and in this embodiment, the screen is taken as an example. The correction method of the computer 80 can increase the printing precision, reduce the time of typesetting, and reduce the use of the film. It should be specially noted that, in 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. In addition, in this step, the following steps are included to achieve the goal:

Step S3A: The image capturing unit 70 is electrically connected to the computer 80, and the absolute position information of the processing pattern 20 is corrected by the computer 80 to correspond to the electronic image.

Step S3B: After the correction, the corresponding processing plate 40 is formed. As shown in FIG. 3C, a photoresist 32 and a patterned barrier layer 33 are sequentially formed on the processing plate 40. The patterned blocking layer 33 can be It is formed by spraying, and further, the effect of fine spraying can be achieved by means of an ink jet, and thus the patterned barrier layer 33 is formed to be finer. In this embodiment, the material of the photoresist 32 may be phenolic resin, epoxy resin, polyisoprene rubber or a combination thereof.

Step S3C: exposing the photoresist 32 as shown in FIG. 3D. In the embodiment, a positive photoresist is used to soften the irradiated photoresist, but a negative photoresist 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 mask 30, and the patterned mask 30 has a corresponding electronic image. The rework area 41 of the image.

Step S4: Finally, as shown in FIG. 3E, the product to be processed 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 waiting for processing. The position of the processed product 10 is processed to the workpiece 10 to be processed. In the screen printing of the embodiment, the following steps are included:

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.

S4B: coating a coating 50 on the patterned mask 30, the coating 50 passes through the patterned mask 30 and the processing plate 40 to form the processing pattern 20 on the workpiece 10, and then, for example, "3F As shown, 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 it can be felt by touching with a finger. The difference in thickness, the thickness in the figure will be drawn thicker to facilitate the illustration.

It should be noted that the processing plate 40 can be a digital version stored in the computer 80. When the electronic image of the basic pattern 60 is obtained and corrected by the computer 80, it is formed in the computer 80. The digital version, when the workpiece 10 is input to the processing unit 90, directly sprays the digital plate, 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.

In summary, the present invention has the following features:

First, the use of computer calibration instead of the traditional use of manual typesetting can increase the accuracy of printing, reduce the waste of time and the use of negatives.

Second, the formation of the patterned barrier layer by spraying can increase the fineness and effectively reduce the cost of fabricating the patterned barrier layer.

Third, the traditional negative film is not required for the exposure action, thereby saving the consumption of the negative film and further reducing the cost.

4. 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 base pattern, thereby avoiding the problem of printing error.

Therefore, the present invention is highly progressive and conforms to the requirements of the invention patent application, and the application is filed according to law, and the praying office grants the patent as soon as possible.

The present invention has been described in detail above, but the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the scope of the invention. That is, the equivalent changes and modifications made by the scope of the present application should remain within the scope of the patent of the present invention.

10‧‧‧Processables

20‧‧‧Processing patterns

30‧‧‧Graphic mask

32‧‧‧Light resistance

33‧‧‧Graphic barrier

40‧‧‧Processing version

41‧‧‧Reprocessing zone

50‧‧‧ paint

60‧‧‧Basic pattern

70‧‧‧Image capture unit

80‧‧‧ computer

90‧‧‧Processing unit

S1~S4, S3A~S3C, S4A, S4B‧‧‧ steps

FIG. 1 is a schematic flow chart of a preferred embodiment of the present invention. 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.

Claims (8)

A method for re-processing after printing comprises the following steps: S1: forming a basic pattern on a workpiece to be processed; S2: obtaining an electronic image of the basic pattern through an image capturing unit; S3: transmitting and absorbing the image Taking a computer electrically connected to the computer, correcting the absolute position information of a processing pattern to correspond to the electronic image, and thereby forming a processing plate, the processing plate having a rework area corresponding to the electronic image; And S4: inputting 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. The method of re-processing after printing as described in claim 1, wherein in step S1, the basic pattern is formed in a group selected from the group consisting of lithography and screen printing. The method of re-processing after printing according to the first aspect of the patent application, wherein in step S2, the image capturing unit acquires the electronic image by scanning. The method of re-processing after printing according to the first aspect of the patent application, wherein the step S3 further includes the following steps: S3A: electrically connecting the image capturing unit to the computer, and correcting the computer through the computer Processing the absolute position information of the pattern to correspond to the electronic image; S3B: sequentially forming a photoresist and a patterned barrier layer on the processing plate, the processed plate is a screen; and S3C: the photoresist Etching is performed to form a patterned mask, and the patterned mask has a rework area corresponding to the electronic image. The method of re-processing after printing as described in claim 4, wherein in step S3B, the patterned barrier layer is formed by spraying. The method of re-processing after printing as described in claim 4, wherein in step S3B, the material of the photoresist is a group consisting of a phenolic resin, an epoxy resin, a polyisoprene rubber, and a combination thereof. . The method of re-processing after printing as described in claim 4, wherein in step S4, the method further comprises the following steps: S4A: inputting the product to be processed into the processing unit electrically connected to the computer, The processing unit positions the corresponding processing area of the processing plate and the processing position of the workpiece to be processed; and S4B: coating a coating on the patterned mask, the coating passes through the patterned mask and the The processing pattern is formed to form the processing pattern on the article to be processed. The method of re-processing after printing as described in claim 1, wherein in step S3, the processing plate is selected from any one of a lithographic plate, a bronzing plate, an embossed plate, and a die plate.