Prepress operation refers to the preparatory work of the printing process, including typesetting and color separation scanning. Its work mainly lies in the mastery of the software used in the prepress operation of the computer, the familiar basic work flow of the printing process, and good graphic image processing capabilities.
When we get prints, we are often very disappointed, because we often find that their own design concepts are not well reflected, or some of the colors are not printed properly, resulting in some deviation in their own design. How can we make our design ideas better printed? This is the problem that will be discussed below.
In my opinion, the following points must be made to make printing a design service: First, designers should have certain prepress knowledge; Second, prepress preparation; Third, close cooperation and communication. Only in this way can the design go crazy and the development of computer technology also supports the realization on the computer screen. However, due to the limitations in equipment, process technology, communication and understanding, and the lack of designer's knowledge of printing, the printing company cannot match the design and printing very well. As a result, the printed work is not satisfactory, so the printing company At the end of the work, the design company must be asked to provide corresponding cooperation. The designer's understanding of the printing knowledge can ensure that the design ideas are unblocked.
1. Designers should have prepress knowledge
1 If the designer's print has a cross-page design, it means that the text or image on one page will cross over to the next one. At this time, it is best to determine the paper guide and the gripper at your printing. The location in the factory, and then place the material as close to the area as possible; In addition, try not to split a text onto two signatures, which is easy to make mistakes.
2 always guarantee your bleeding position (usually 3mm, but with the development of technology some printing plants have been <3mm, so these also need designers and printers to communicate closely in order to save expenses). Any image that exceeds the cutting line must have a margin outside the cutting line, so that people can not correct the traces when trimming the crop. This excess is called bleeding. Therefore, when cutting a pile of pages, appropriately increasing the amount of bleeding can improve the overall job cutting quality.
3 For the printed documents that need to be die-cut, the die-cut lines should be stored in a separate layer or contacted by telephone to make sure that the printed parts are separated from the die-cut lines.
4 choice of paper. There are various types and sizes of paper, which must be selected and the work is appropriate. For example, some papers may be too thick to fold many times; some papers may not be suitable for UV coating, and some papers may take many days to dry thoroughly. , And some papers can only be water-based coating, otherwise it will be damaged by the binding equipment. Of these factors, designers are better able to give consideration.
5 When you are still in the concept stage, you should contact the binder factory to let them know what you are thinking. Not only can they help you achieve your goals, but they can also give you a lot of cost-saving advice.
When the 6 files are finalized, unnecessary paths created in Photoshop must be deleted. RIP is cumbersome because it keeps some unnecessary paths in the image.
7 Designers occasionally use Macromedia Fontographer software to make changes to the font. Although they send new, modified fonts, ATMs often cannot recognize it as a valid font file. At this time you need to do font replacement, sometimes only to replace other fonts. For designers, the modified fonts are mostly title words. Therefore, in the illustration software, the title words should be set. It is better to convert the font into a path after the finalization of the design, and then put the characters into the spring and autumn typesetting software. The font becomes a vector file, font files are no longer needed, and errors are reduced.
8 After the designer finalizes his or her work, he or she must pay attention to whether or not the document contains a picture. The designer puts the linked picture in the typesetting software, but when sending it to the output center, he forgets to send the picture placed in the file to the output center together. Therefore, when the output is not a picture error, it is a low resolution. Rate picture. Or the designer did not link the pictures at all, such as the documents produced by the financial company. The pictures in these files are often copied from Microsoft PowerPoint or Excel to a file. In this case, the typesetting file contains only one WMF file. When the picture is processed in the output, it is not the line width error, which is the color cast. Therefore, recreate the illustration in Adobe Illustrator or other suitable illustration software. Do not put it into Illustrator by grabbing or cutting and scraping. The best way to do this is to first draw and then export it as an EPS file. To Illustrator.
9 The impact of the designer's resolution in Photoshop on the image, the small resolution will inevitably affect the quality of the printing, too much resolution will affect the operating speed of the computer operation, the image resolution should be 2 times the number of printed lines, lower than 2 times can not meet the printing quality requirements, more than 2 times is wasted. For example, if the print product uses 175 lines, the image resolution should be 175×2=350 dpi. Image scaling should not exceed 20%. If there is a spot color printing, we should establish a spot color channel, and pay close attention to the pressure printing method. Only with the right resolution, with the smallest memory to ensure the best print quality, why not do it!
The 10RGB image must be converted to CMYK to avoid the appearance of inaccurate or even multi-colored grays. RGB is generally used in design or in color inkjet, and CMYK is used in printed matter. Therefore, you should pay attention to the process of making prints, because the colors will become dull during the conversion from RGB to CMYK.
Note the Apple (MAC) archiving process, pay attention to the PC and Apple (MAC) compatible formats. The designer himself must also make corresponding cooperation for the post-printing. When the designer understands the basic printing knowledge, he can learn more about some printing techniques: such as UV, hot stamping, hot silver, laser and other effects, it will be for your work. Play the finishing touch!
2. Prepress preparation
1 All the film density should be above 3.8, bleeding position ≥ 3mm, the finished product size is correct; and the film can not have scratches, creases, keep clean; all hot stamping content such as pressure on the base or background, the corresponding content can not Make anti-white on the background or background color to avoid inaccuracy; on the film, there must be a clear color mark to avoid misspelling; Film film surface is correct to avoid serious loss of printing screens; Attachment 2 to the first page of the first page of the text, the closure of the three pages and their associated last page of the text to leave a 3mm overlapping docking position, the other text to stay 0.5-1mm overlapping docking position, to avoid cross-map can not be connected Binding book cover two, cover three, the first 8P and the post 8P in the setting of the mouth of the text must be more than 8mm away from the spine to avoid seeing the book open; horse riding book text from the incision should be a certain distance, the general situation Next, the distance from the first placard to the incision is preferably ≥ 3mm, and then each placard is further increased by 1mm, that is, the distance from the text of each placard to the incision is preferably ≥ 4mm, and so on. The provided color draft should be the final proofed manuscript. If there is a change in the text and the film is reissued without re-proofing, it must be clearly marked in the corresponding position of the proof to avoid misunderstandings. If it is a change in color, it must be reprinted to avoid printing and color problems.
2 If it is from an electronic file, the printer should pay attention to the design software used. The software is preferably PDF, Acrobat Professional. QXD, QuarkXpreess. AI, Illustrator. INDD, InDesign. PM, PageMaker. FH, Freehand. And clearly declare the type of software used and version number, such as the Chinese version of InDesignCS2, the file format, the file format is best:
PDF: Fonts and high-resolution images must be embedded. PS: Including fonts and high-precision maps.
EPS: Including fonts and high-precision maps. TIFF: Image format; basic file requirements.
3 Pattern: Provides the final pattern of the electronic document. If the pattern is different from the electronic document, it must be clearly marked on the pattern and the file format must be specified.
4 Dimensions: The final dimensions of the document must be notified, and any scaling and adjustment must be clearly identified. The composition of the file should be divided into three folders: font, image, and typesetting.
3. Close cooperation and communication
Communication in the design process: To ensure that design ideas can be printed better, if there are special designs or designs involving new processes, it is better to determine whether the design ideas can be achieved and how It is better to consult printers that are better implemented and whether there are other better design methods, etc. If the printing company can participate in the process design scheme, it is better to avoid subsequent problems. In addition to providing sufficient professional technical support, the printing company should also actively share with customers the successful experience of production process design cases of other products.
2Communication in the prepress production process: Although the development of computer technology allows computer makers to independently create fairyland scenes, due to the process limitations of the subsequent printing and binding process, it is impossible to make their works appear in the world. Therefore, the communication in the prepress production process is even more important. The printing company should provide enough professional technical support to the designers. The designer must, according to the requirements of the printing company, create and process electronic documents according to the actual tooling and craftsmanship of the printing company.
3 Communication in the whole process of printing, the two sides should maintain close contact, timely detection and rapid processing of the entire process of printing found and may not be able to meet the design requirements of the problem. When a problem is discovered by a printing company, it must first try its best to satisfy the equipment, process and technical problems. If the problem cannot be solved, it must be promptly presented to the customer. If necessary, sufficient professional opinions should be provided for the customer to make decisions. The client should also promptly solve the problem after learning the relevant issues, to avoid greater losses and delays. If it can be handled on site, it is the best communication and solution.
4 After the delivery of the communication, after the delivery of the product, the two parties can maintain appropriate communication, sum up experiences, and grasp the customer's demand orientation, which is conducive to long-term and friendly cooperation. In particular, the printing of magazines allows the relevant staff of both parties to sum up and communicate together, which helps to shorten the cooperation period and enhance understanding so that the subsequent cooperation can be more enjoyable. A good work, a successful project is the result of the joint efforts of the design company and the printing company, and it is generated by the recognition of the majority of readers. Therefore, the creator's creativity must also be soluble in nature, soluble in readers, transcending nature, transcending readers...
In summary, the designer should have a certain prepress knowledge; an accurate prepress work and human communication and coordination work can fully reflect the design idea through printing, and will not stay at the moment when the print is born. There is regret!
When we get prints, we are often very disappointed, because we often find that their own design concepts are not well reflected, or some of the colors are not printed properly, resulting in some deviation in their own design. How can we make our design ideas better printed? This is the problem that will be discussed below.
In my opinion, the following points must be made to make printing a design service: First, designers should have certain prepress knowledge; Second, prepress preparation; Third, close cooperation and communication. Only in this way can the design go crazy and the development of computer technology also supports the realization on the computer screen. However, due to the limitations in equipment, process technology, communication and understanding, and the lack of designer's knowledge of printing, the printing company cannot match the design and printing very well. As a result, the printed work is not satisfactory, so the printing company At the end of the work, the design company must be asked to provide corresponding cooperation. The designer's understanding of the printing knowledge can ensure that the design ideas are unblocked.
1. Designers should have prepress knowledge
1 If the designer's print has a cross-page design, it means that the text or image on one page will cross over to the next one. At this time, it is best to determine the paper guide and the gripper at your printing. The location in the factory, and then place the material as close to the area as possible; In addition, try not to split a text onto two signatures, which is easy to make mistakes.
2 always guarantee your bleeding position (usually 3mm, but with the development of technology some printing plants have been <3mm, so these also need designers and printers to communicate closely in order to save expenses). Any image that exceeds the cutting line must have a margin outside the cutting line, so that people can not correct the traces when trimming the crop. This excess is called bleeding. Therefore, when cutting a pile of pages, appropriately increasing the amount of bleeding can improve the overall job cutting quality.
3 For the printed documents that need to be die-cut, the die-cut lines should be stored in a separate layer or contacted by telephone to make sure that the printed parts are separated from the die-cut lines.
4 choice of paper. There are various types and sizes of paper, which must be selected and the work is appropriate. For example, some papers may be too thick to fold many times; some papers may not be suitable for UV coating, and some papers may take many days to dry thoroughly. , And some papers can only be water-based coating, otherwise it will be damaged by the binding equipment. Of these factors, designers are better able to give consideration.
5 When you are still in the concept stage, you should contact the binder factory to let them know what you are thinking. Not only can they help you achieve your goals, but they can also give you a lot of cost-saving advice.
When the 6 files are finalized, unnecessary paths created in Photoshop must be deleted. RIP is cumbersome because it keeps some unnecessary paths in the image.
7 Designers occasionally use Macromedia Fontographer software to make changes to the font. Although they send new, modified fonts, ATMs often cannot recognize it as a valid font file. At this time you need to do font replacement, sometimes only to replace other fonts. For designers, the modified fonts are mostly title words. Therefore, in the illustration software, the title words should be set. It is better to convert the font into a path after the finalization of the design, and then put the characters into the spring and autumn typesetting software. The font becomes a vector file, font files are no longer needed, and errors are reduced.
8 After the designer finalizes his or her work, he or she must pay attention to whether or not the document contains a picture. The designer puts the linked picture in the typesetting software, but when sending it to the output center, he forgets to send the picture placed in the file to the output center together. Therefore, when the output is not a picture error, it is a low resolution. Rate picture. Or the designer did not link the pictures at all, such as the documents produced by the financial company. The pictures in these files are often copied from Microsoft PowerPoint or Excel to a file. In this case, the typesetting file contains only one WMF file. When the picture is processed in the output, it is not the line width error, which is the color cast. Therefore, recreate the illustration in Adobe Illustrator or other suitable illustration software. Do not put it into Illustrator by grabbing or cutting and scraping. The best way to do this is to first draw and then export it as an EPS file. To Illustrator.
9 The impact of the designer's resolution in Photoshop on the image, the small resolution will inevitably affect the quality of the printing, too much resolution will affect the operating speed of the computer operation, the image resolution should be 2 times the number of printed lines, lower than 2 times can not meet the printing quality requirements, more than 2 times is wasted. For example, if the print product uses 175 lines, the image resolution should be 175×2=350 dpi. Image scaling should not exceed 20%. If there is a spot color printing, we should establish a spot color channel, and pay close attention to the pressure printing method. Only with the right resolution, with the smallest memory to ensure the best print quality, why not do it!
The 10RGB image must be converted to CMYK to avoid the appearance of inaccurate or even multi-colored grays. RGB is generally used in design or in color inkjet, and CMYK is used in printed matter. Therefore, you should pay attention to the process of making prints, because the colors will become dull during the conversion from RGB to CMYK.
Note the Apple (MAC) archiving process, pay attention to the PC and Apple (MAC) compatible formats. The designer himself must also make corresponding cooperation for the post-printing. When the designer understands the basic printing knowledge, he can learn more about some printing techniques: such as UV, hot stamping, hot silver, laser and other effects, it will be for your work. Play the finishing touch!
2. Prepress preparation
1 All the film density should be above 3.8, bleeding position ≥ 3mm, the finished product size is correct; and the film can not have scratches, creases, keep clean; all hot stamping content such as pressure on the base or background, the corresponding content can not Make anti-white on the background or background color to avoid inaccuracy; on the film, there must be a clear color mark to avoid misspelling; Film film surface is correct to avoid serious loss of printing screens; Attachment 2 to the first page of the first page of the text, the closure of the three pages and their associated last page of the text to leave a 3mm overlapping docking position, the other text to stay 0.5-1mm overlapping docking position, to avoid cross-map can not be connected Binding book cover two, cover three, the first 8P and the post 8P in the setting of the mouth of the text must be more than 8mm away from the spine to avoid seeing the book open; horse riding book text from the incision should be a certain distance, the general situation Next, the distance from the first placard to the incision is preferably ≥ 3mm, and then each placard is further increased by 1mm, that is, the distance from the text of each placard to the incision is preferably ≥ 4mm, and so on. The provided color draft should be the final proofed manuscript. If there is a change in the text and the film is reissued without re-proofing, it must be clearly marked in the corresponding position of the proof to avoid misunderstandings. If it is a change in color, it must be reprinted to avoid printing and color problems.
2 If it is from an electronic file, the printer should pay attention to the design software used. The software is preferably PDF, Acrobat Professional. QXD, QuarkXpreess. AI, Illustrator. INDD, InDesign. PM, PageMaker. FH, Freehand. And clearly declare the type of software used and version number, such as the Chinese version of InDesignCS2, the file format, the file format is best:
PDF: Fonts and high-resolution images must be embedded. PS: Including fonts and high-precision maps.
EPS: Including fonts and high-precision maps. TIFF: Image format; basic file requirements.
3 Pattern: Provides the final pattern of the electronic document. If the pattern is different from the electronic document, it must be clearly marked on the pattern and the file format must be specified.
4 Dimensions: The final dimensions of the document must be notified, and any scaling and adjustment must be clearly identified. The composition of the file should be divided into three folders: font, image, and typesetting.
3. Close cooperation and communication
Communication in the design process: To ensure that design ideas can be printed better, if there are special designs or designs involving new processes, it is better to determine whether the design ideas can be achieved and how It is better to consult printers that are better implemented and whether there are other better design methods, etc. If the printing company can participate in the process design scheme, it is better to avoid subsequent problems. In addition to providing sufficient professional technical support, the printing company should also actively share with customers the successful experience of production process design cases of other products.
2Communication in the prepress production process: Although the development of computer technology allows computer makers to independently create fairyland scenes, due to the process limitations of the subsequent printing and binding process, it is impossible to make their works appear in the world. Therefore, the communication in the prepress production process is even more important. The printing company should provide enough professional technical support to the designers. The designer must, according to the requirements of the printing company, create and process electronic documents according to the actual tooling and craftsmanship of the printing company.
3 Communication in the whole process of printing, the two sides should maintain close contact, timely detection and rapid processing of the entire process of printing found and may not be able to meet the design requirements of the problem. When a problem is discovered by a printing company, it must first try its best to satisfy the equipment, process and technical problems. If the problem cannot be solved, it must be promptly presented to the customer. If necessary, sufficient professional opinions should be provided for the customer to make decisions. The client should also promptly solve the problem after learning the relevant issues, to avoid greater losses and delays. If it can be handled on site, it is the best communication and solution.
4 After the delivery of the communication, after the delivery of the product, the two parties can maintain appropriate communication, sum up experiences, and grasp the customer's demand orientation, which is conducive to long-term and friendly cooperation. In particular, the printing of magazines allows the relevant staff of both parties to sum up and communicate together, which helps to shorten the cooperation period and enhance understanding so that the subsequent cooperation can be more enjoyable. A good work, a successful project is the result of the joint efforts of the design company and the printing company, and it is generated by the recognition of the majority of readers. Therefore, the creator's creativity must also be soluble in nature, soluble in readers, transcending nature, transcending readers...
In summary, the designer should have a certain prepress knowledge; an accurate prepress work and human communication and coordination work can fully reflect the design idea through printing, and will not stay at the moment when the print is born. There is regret!
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