Silkscreen definition12/28/2022 ![]() ![]() It is used to fill any unwanted openings in your stencil on the screen after exposure and washout.īutt, Butt Registration - When the edges of 2 different printed colors come edge to edge but do not overlap.Ĭapillary Films - Pre-sensitized emulsion on a film base. This is much like when you use a sharp tipped permanent marker on a heavy paper, sometimes when you draw a line the ink "bleeds" into the surrounding paper fibers causing spider or vein like edges.īlock Out - This is an emulsion like chemical that is most often not light sensitive. This can occur with 2 different colors printing closely as well. It contains several infrared heat panels that heat the ink to about 330 degrees Fahrenheit.īleeding - This occurs when an ink that is printed migrates outside of its printed area into surrounding areas of the shirt. More on this to come.īelt Oven - The piece of equipment used to cure the shirts. It is important to note that you will need your artwork set up correctly to obtain good results in screen printing. Artwork in general may or may not be ready to go to screen. Screen art refers to artwork that is already set up for the screen printing process. These films can be cut manually or on a plotter to produce masks for film contacting and plate making and film positives.Īrtwork - Also may be referred to as "screen art". To cause the surface of an object to not be smooth.Īmberlith or Rubylith - Rubylith� and Amberlith� brand masking films are light safe knife cut films coated onto a clear polyester backing sheet. #Silkscreen definition how to#Read screen printing articles and learn how to print tee shirts!Ībrade - To wear off or down by scraping or rubbing, to scrape off. Here you will find definitions for the screen printing terminology used in the videos and articles on this website. This is a general glossary of screen printing terms used in our YouTube informational videos. In all other cases, the printed item will go into an appropriate dryer or be placed on a drying rack to air dry.Learn How To Screen Print With Catspit Productions, LLC With UV inks, drying occurs during the print process. Once printing is complete, the next step is to cure or dry the ink. Then as the squeegee moves forward, the mesh releases from the substrate and is ready for the next cycle. Automated machines use a flood bar that cycles down and forward then raises as the squeegee comes down and draws back, creating the image.Īs the squeegee comes down, it forces the mesh into contact with the substrate and pushes ink through the mesh at a specific angle. #Silkscreen definition manual#On a manual press, the squeegee performs this function. The ink is drawn across the image from front to back. Too high, too low, or an uneven gap will all distort the image, making multiple colors impossible to align. This spacing is known as off contact and is highly critical for the quality of your print. Once your substrate is in place, the screen is lowered and rests slightly above the surface of your substrate. In garment printing, this platen functions much like an ironing board. There may be a mechanism to secure the substrate, or it may be secure using spray glue. The substrate (what you are printing onto) is securely mounted directly below the screen. The equipment is ready, ink is on the screen, and you are prepared to pull your first print. ![]() The block out seals open spaces and pinholes so that only the desired design may print. Today’s emulsions are environmentally benign and require only water for processing.Īny areas on the screen where ink can pass through but are not part of the image receive a coating of block out product. Once the screen is exposed, the unexposed areas are washed out, leaving open mesh where your image will print. Again, this process requires highly specialized, costly equipment. This method saves time by eliminating steps and enhancing accuracy. Many busy commercial screen printing companies eliminate the film and use laser technology to create the image digitally. This step is most often done by placing a film positive of your design against the emulsion and exposing it with a high-intensity light source of a specific wavelength.Ī piece of equipment called an exposure frame performs this function.Ī vacuum firmly holds the film against the emulsion, allowing for precise translation of the design on the film to the emulsion on the screen.Īnother method of exposing the design onto the emulsion is Direct to Garment (DTG). ![]() Once this emulsion has cured and is ready to accept your design, the next step is to transfer your design to the screen. It can be accomplished manually, but this is highly sensitive to technique and takes much practice. The coating process requires specialized equipment designed specifically for screen printing. A light-sensitive emulsion (photopolymer) is applied to the screen once it is properly stretched. ![]()
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