Booklet for printing


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Booklet for printing

  1. 1. Flexography is a method of printing which combines letter press androtogravure techniques. As the name suggests, flexography employsflexible plates as the relief printing plate in the process of this method ofprinting, which differs from letterpress printing methodsThe Process1. The image is mounted and raised upon a flexible rubber printing plate2. Flexible plates are secured on to printing cylinders3. Ink is rolled on to the plate and the printing cylinder4. A sheet of material is fed between the impression cylinder and the printing cylinder5. The raised bits of ink transfers on to the material surface and the image is createdNote: Thin metal plates are sometimes used to back the flexible platesfor ink alignment and close register
  2. 2. UsesFlexography is mainly used for materials other than paper, althoughpaper is also used in this process. This printing method is mostly usedfor packaging, such as foil, foil laminates and PVC shrink sleeves. Hereare some uses: Paperback covers, newspapers, envelopes Folding cartons Paper sacks Plastic bags Disposable cups containers Labels Adhesive tape WrappersAdvantage Disadvantage High speed printing  Poor shadows Quick and easy make of  Unwanted lines surrounding orienting plates printed image; Haloing Cheap  Impressions per plate limited
  3. 3. Gravure, or rotogravure, can be considered the opposite of relief printing.The image to be printed is made by engraving it on to the printing plateand the image is recessed, rather than jutting out in relief. Moderngravure techniques are usually done using web-fed machines.The Process1. The image is engraved into a piece of printing plate2. The plate is mounted onto a printing cylinder3. Spirit based ink is poured on to the plate4. The excess ink is removed by a blade from the non-printing areas5. Paper is fed through the impression cylinder and the printing cylinder6. The ink dries immediately after coming out of the machine7. An image is madeIn the olden days, paper was merely pressed upon the recessed cells andthe ink would be absorbed. The ink was wiped off rather than brushedoff with a blade.
  4. 4. Uses Food packaging Wallpaper Wrapping paper Furniture laminates Magazine Greeting CardsAdvantages Disadvantages Able to print millions of the  Rare form of printing method same image without  Expensive worsening of quality  Quite time-consuming as it Prints a more superior image involves more meticulous on a lighter piece of paper procedures
  5. 5. The process originally means stone writing. At first, the paintingprocess originally used flat pieces of printing plates, but it has nowevolved into using three rotating cylinders: the plate cylinder, the blankcylinder and the impression cylinder. The process uses the law of howgrease and water does not mix, as there are rollers applying water andink applied on to the printing cylinders.The Process1. Two rollers apply two different liquids onto the plate cylinder; one, applying ink, the other, applying water2. The plate cylinder is dampened with water3. The image area accepts the ink and repels the water applied by the two rollers while the non-image area repels the ink and accepts the ink and the image to be printed is defined4. Image is then transferred on to the blanket cylinder below5. Paper is fed through the blanket cylinder and the impression cylinder and the image is pressed upon it by the blanket cylinder6. If different colours are needed, paper may be sent through several times
  6. 6. Uses Advertisements Posters Books Catalogues Greeting cards Packaging Coupons Art reproductionsAdvantages Disadvantage Quite clear images  Time consuming to set up and Smooth printing, no rough get it running edges where ink is transferred  Needs constant care or images Able to print on wide variety will not appear of paper surfaces Cheapest high quality printing Able to print on both sides
  7. 7. Screen printing, as the name says, involves printing by use of a screen. Itis extremely useful and diverse as it can be applied on many materials,shapes, or sizes. Before, the screen used was made from silk, thoughnow, synthetic fibreThe Process1. The surface on which the print is to be made upon is placed on top of the base2. A template with the image cut out and then placed on top of that3. A screen is placed on top of this, usually made out of synthetic fibre stretched tight over a wooden frame4. Thick ink is poured on top of the screen5. The ink is pressed hard, through the screen, with a blade6. The ink seeps through the screen and the template allows the ink needed only for the image to go upon surface while stopping the extra background ink from going through7. The surface with the print is taken out and the process is finished
  8. 8. Uses Textiles market Used to print designs/patterns on cotton, silk, organza Shirts, dresses, pants, skirts Curtains, cushion covers, bed covers, drapes Upholstery Flyers, handouts Posters Sports industry uses it to create collectables items and souvenirs Mouse pads Key chains CapsAdvantages Disadvantages Good for customising  Time consuming, as different garments screen needed for different Effective for large designs colour and different template Convenient for different for different parts shapes, thickness and sizes of  Comparatively slow process surfaces Better quality on garments than other printing methods
  9. 9. This way of printing can be used in every day life, other than justindustrial uses. The laser printer works in a similar way.The Process1. Master copy is placed face down on to the glass face2. Light runs along the glass surface, shining on to the master copy3. Light reflects from the white surface of the cover on to a positively charged rotation drum and the light makes it loose positivity4. Toner is attracted on to the remaining positively charged drum which is where the image is and the toner forms the image, to be copied, on to the drum5. The rotation drum pulls the paper through and the toner is then transferred on to the piece of paper6. The paper is ejected out and the image is upon itUses Making exact copies of documents, drawings or photographsAdvantages Disadvantages Easy to use  Machinery can take a lot of Can make exact copies space Can make many copies many  Limited uses times