Tipografia Comercial, Services

Digital Printing

It is understood by digital print any printing system in which the image is generated from a digital file and is transferred directly to a printer that can be digital offset, laser, dye sublimation or inkjet.
The digital offset printing is often requested when a small run of copies, but with high quality, is required.
Currently, digital printing, responds to virtually all products of the printing industry as well as allows them to be attached to this equipment system running a number of complementary activities, such as folding and cutting vinyl for the production of adhesives, among others.

The work is directed to the printing machine that is destined.
In this department there are 15 print heads.

• 2 machines 4 colors
• 3 machines in 2 colors
• 1 machine in 1 color

We acquired a new printing machine (Roland 300) which allowed for faster flow of print jobs, with the aim of customer satisfaction.
The Roland 300 is the only machine in the south of the country with the greatest ability to print in 50x70cm format.

This 4-color machine, combines quality with fast print work, and its main characteristics are:

• Automated greenhouse for drying paint or varnish;
• Capacity up to 16,000 sheets per hour;
• Automatic Measurement and Control System of color;
• Integrated File System Print.

Management Software for Graphics
Through this new software all the information of the graphic is computerized, facilitating the entire process of job control from input to its output.

The typographic relief printing is the oldest printing process.
The process was born in China during the fifth century after Christ.
But it was in Europe specifically in Germany that Gutenberg (1395 - 1468) began the art of printing with movable type introducing the typographical method.
The Bible of 42 lines was an example of the potential of typographical printing.
The typographical method consists of a processof an ink transfer to paper process.
An ink layer is last in the embossed areas which in turn is transferred directly to the paper by pressure.
The coincident press of the matrix is composed of a mixed or not, of types of mobile, pictures etc ... .

The print has certain characteristics that are easily
identified, such as:

• Relief in printing, due to the printing method being direct
• Some runoff in tips or in the finest fillets
• Lack of common gradients in OFFSET



Is now used in Cutting and Creasing

• Perforation
• Special cut
• Numeration

Given the color to the paper, it becomes therefore necessary to correct the shape.
At this stage of the work already printed, it becomes important the finishings.
In this sense we are equipped to carry out the following finishing:

• Special cutting;
• General or localized offset varnish, UV varnish;
• Matte or gloss lamination
• High or low reliefs
• Hot Stamping
• Fold, Cut and Crease
• Staple, glue and sewn
• Finished with rings

In this department we have: 3 Guillotines, 2 Folding machines, 2 Collate machines which interleave, join them and staple them toghether (22 stations in total), 1 Gluing machine and 1 Sewing by line machine.
We leverage the printing machines for cutting, creasing, numbering, hot stamping, using the technique of zinc engravings for printing high and low relief.
We perform the bagging of works with due sender, personalized, for the purpose of mailing, entrusting the Gráfica Comercial of its delivery in CTT.
The job output

• After completion of work, this is carefully packed and packaged for delivery directly to the desired destination by the customer.
• We carry out the distribution across the Algarve and Alentejo.
• We partner with DHL and SEUR carriers that enables delivery to any country and islands as well as abroad, particularly in Spain
  

Preparation Guide of Documents
View of the work to produce: check the recording of the files and the conversion of colors:

• General Rules
• Assembly Plan
• Rules for Images
• Rules for Sources
• Rules for File Transfer (magnetic media)
• Rules for Trapping (overprint ink)
• Rules for Postscript files
• Evidence of Color

General Rules

• All documents must be built to the final size as single pages
• The area of the stain print (except bleeding / bleed) should be centered within the document, of the desired shape after cutting.
• Leave at least a clearance to the exterior of the page size of 0.5 mm on all four sides, free from every element in which it is not intended to perform the bleeding / bleed.
• Documents must have identification marks of cut (rasters) in order to make it possible to confirm the work format

Assembly Plan

• The assembly plan is created by the Department of Prepress, via software XMF.

Rules for Images

• Images used for the offset printing process must be recorded or converted to CMYK (Cyan, Magenta, Yellow and Black).
• You should not use any form of image compression such as JPEG, LZW and ZIP compression
• Images must be specified as CMYK and not RGB. To print in 4-color process, all graphics should be specified with CMYK values.
• Pantone Color values must be adjusted separately of the CMYK values.
• Properly check in the document the Pantone colors to make sure that there is no separation of extra color in addition to the four-colors of selection or pantone set.
• The best results will be achieved if the images are processed in image manipulation programs such as Photoshop, instead of your page layout program

Rules for Sources

• All fonts used should be Postscript (Type 1 usually).
• TrueType fonts or Multiple Master fonts can be accepted but with some reservations and preferably should be converted into curves.
• Sources should not be altered (stretched, shrunken) in the editing program.
• All fonts used must be supplied in a folder called "Fonts", or they must be converted to curves (vectorized)
• For Macintosh, the font to be used should be Macintosh.
• For the PC platform they must be provided in PostScript or TrueType format.
• All fonts used in EPS files must be converted to curves.
• The fonts created by the customer, must first be sent to the Gráfica Comercial in order to be properly tested.

Rules for PDF files

• All files delivered to the Gráfica Comercial, should preferably be submitted in PDF format, as it is currently the most widely used type of file and of easy visualization and detection of technical errors.
• The procedures for implementation of PDF files, are adjusted depending on the program in which they are executed. To do this you should contact the Department of Prepress, in order to be given the technical indications correct for your application.

Rules for File Transfer (magnetic media)

• The Gráfica Comercial accepts files coming from PC (IBM compatible) and Apple Macintosh platforms. Do not include unnecessary files on magnetic media, grave files only strictly necessary for the job.
• Always accompany files with a printout of its contents on the work requested.

Rules for Trapping (overprint ink)

• The Gráfica Comercial of Loulé assumes no responsibility for the constant trapping of electronic files provided for printing unless prior arrangements are made intentionally to cause this effect.
• The typical recommendation of the trapping is 144 Pt However this measure should be considered depending on the type of publishing / printing.
• Contact a technician of the Prepress Department to request additional information.
• All text on black backgrounds should be set to overprint.
• Be careful when adjusting the black overprint where there are open boxes or white text, as it is synonymous with not appearing in print.
• Be careful when adjusting the trapping on the items that are superimposed on images as this is considered indeterminate and the desired trapping can not be applied.

Rules for Postscript files

• Creating PostScript files can be very time consuming and it is recommended that there is enough available space on your hard drive.
• These two variables are directly related to the file sizes of your pages, pictures, graphics and speed of the equipment on which the PostScript file is generated.
• Before setting up photoliths plates or tests should be done usually in the form of Ozalide test (low cost)
• The printing frequency should not be less than 100 lines and preferably the minimum amount of 150 lines must be drawn in any case you must always contact the Department of Preprinting of Gráfica Comercial in order to establish rules for the various types of work to be delivered for printing.
• The pages must come apart or for example in the case of each page of a book they must come as separate files.
• The registration marks, cut / fold and color calibration must be active in creating the Postscript file.
• The angles in black color and Pantone colors must be adjusted to avoid overlapping of the point.
• To output selection make sure that the Pantone colors are converted to CMYK properly in the case of works that are for printing in 4 colors CMYK.
• Give noticeable names to Postscript files, for example: PaginaImpar32; Cover, etc. etc.

Evidence of Color

• The Gráfica Comercial has the ability to produce color proofs, whether on offset or digital evidence. These tests are only conducted at the request of the client, and serve as a reference for color and content in relation to the final printed product.
• Files submitted to the Gráfica Comercial to be reproduced in color proof must follow the rules imposed by the same elsewhere in this Guide for Document Preparation.
• The Gráfica Comercial uses Hardware and Software compatible with existing systems of RIP and Postscript of the most current market level.
• All files delivered to the Gráfica Comercial must be accompanied by a printed proof-size equal to the desired end result in offset printing.
• The test must have the file name, the date, time and cut marks and the corresponding page number that refers to identifying its position in the publication.
• The color proofs sent to the Gráfica Comercial, made externally, are subject to approval of the same, in order to constitute itself a valid reference for the intended purpose.

If in doubt consult the Technical Services of Prepress.