Paper Plate Maker essays

Paper Plate Maker essays The plate maker is a device used in combination with the offset press to create copies from a single piece of paper which is also known as a master. There are many different types of plates which can be made with the plate maker, such as direct image plate which is used for small amounts of copies and have the image adhered to paper by use of a grease pencil and when you are ready to place this direct image plate onto the press you use special fluid which makes the background that the image is not on receptive to water so that when printing with the offset press your paper does not appear all black. Photo direct plates are another type of plate which is used for making small amounts of copies of something because they are not very durable. Theyre made directly from paper that is the same size as the image or item to be printed. The plate is given an electrical charge and the part of the paper without the image gets the charge then an oppositely charged toner is adhered and fused to the image area before printing. Metal plates or Presensitized plates are used when making a large amount of copies or when you are copying something with the offset press which youd like to save the master of so that you can copy it at later times without making another plate. A flat or special masking sheet called a golden rod is attached to negative of the image, and then the negative and goldenrod are used with the mercury exposure system which exposes the plate underneath the goldenrod sheet to light for 30 seconds. The goldenrod blocks the light and lets some of it through the negative to burn the image onto the metal plate. The metal plate is then coasted with subtractive plate developer which lets you put the plate in the machine right now. Otherwise if you didnt want to use the metal plate right now youd have to put a gum plate chemical on the plate to stop it from oxidizing or rushing. Diffusion transfer plates are ano...