Screen printing process ppt

Digital printing is generally defined as any type of print reproduction method that utilizes electronic files to produce a printed piece from spots and dots of ink, toner, or dye. Next, prop the screen up and place a piece of test paper under the screen which has been precut to the d e s i red size. Measure and tear your good paper and some newsprint paper. Flat screen and rotary screen machines had by that time made this process very popular for printing. Position your paper and pull a test print to ensure that your image is centered. The first step in screen preparation is the degreasing process. The printing process sheet offset press sabuj printers. In this lesson we will give only brief descriptions of some important methods. A free powerpoint ppt presentation displayed as a flash slide show on id. Pdf screen printing process design of experiments for. Ink is then forced through the open meshes of the fabric by means of a rubber blade called a squeegee. When problems arise, first do the 5minute overall system check 80% chance that you resolve the problem if specific defects continue to occur, follow logical troubleshooting guidelines. This is a process wherein dirt and oils that have been transferred to the screen are washed away so that the surface is clean and able to adhere evenly to the em ulsion. Ppt screen printing powerpoint presentation free to.

This is how cotton sarees for everyday use are made. With over 30000 print units sold printing, oder contact 01912179528 email. In this ebook we dont care which sort of printer you are we just care that you get great prints coming off your press. Critical parameters, defect scenarios, specifications, and cost reduction article pdf available in soldering and surface mount technology 234. Draw then cut your image read right on the back of the contact paper. Towards the end of the 19 th century, this process was well developed in japan. In the early days, fine silk meshes were used as the screen. To make the print, lower the scre e n onto the paper, and pull the squeegee, again. Screen printing the process of forcing ink through a porous fabric and the open areas of a stencil to produce an image.