21/7/2013 - How To Print On Fabric : How Screen Printing On Cloth Actually Occurs
Screen printing, or silk screening, is an age-old procedure to print on just about any material. With new machinery it's even possible to print on cylinders which, with conventional screen printing methods, would be difficult. The original silk used for a screen has been replaced today with a nylon material that has a very, very tight mesh. It does still have the feel and appearance of silk.
The screen stuff is stretched over a frame, regularly made from wood. It truly is a lot like a screen window that you would have in your house, although the screen mesh is a lot tighter, meaning the weave is a lot closer together. The screen is coated on both sides using a product called "emulsion". Emulsion is a photo sensitive material that may coat the nylon mesh. When it is exposed to light the emulsion hardens and bonds with the screen mesh. Nothing happens to the emulsion where light is blocked from reaching it and it is afterwards washed away.
The process involves three basic steps. One is to organize your graphics, picture or text and get that made into a bit of film. This movie is clear with the graphics or text being black. Second is to lay this film along with your screen and expose it to a light source for a pre determined amount of time. Third you are going to set your screen on the materials to be printed on and drag ink over it using a squeegee.
With screen printing tee shirts, you can preferentially design your own tee shirts or use one of the conventional designs provided by those businesses which specialize in screen printing t shirts printing. However if you need to design your own how to print on fabric, there are certain facets of screen printing you ought to understand, because they impact on the sort of design you can use.
First, a brief description of what exactly is involved in screen printing:
Screen Printing T-Shirts: the Process
At the same time this procedure was known as silk screen printing, since the screens used were created from silk. It was a popular printing technique in China, therefore the silk, but modern polymer fibres now allow us to use artificial displays which are significantly less expensive.
Even though the graphics is needed before the screens can be made, an explanation of the method will be vital so you could understand the limitations in your design. First, a net is required with holes big enough to allow the ink to be squeezed through it. A normal net will be 110 (110 threads/inch), with lower for thicker inks and block images, and higher for thinner inks and more definition.
The net is coated with a light-sensitive emulsion, along with the artwork put under it. Light is exposed up through the screen, and where the light hits the screen, the chemical solidifies and covers the mesh. The design area stops the light, when the screen is washed, the area of the design is clear of emulsion, while the rest is solid. This is true whether screen printing t shirts or any other item.
The screen is mounted in a box, and the garment is set under the box. Ink is poured into the box and an instrument referred to as a 'squeegee' is pulled across, compelling the ink through the net. The ink is then dried, leaving the image on the t shirt.
But while screen t-shirt printing does have a few negatives related to the technique, it is nevertheless favored by most buyers and t-shirt designers on account of the advantages.
The printers themselves will prefer digital types of DTG printing, but should you find a t-shirt printer that will print your garments with your own design using screen at a satisfactory price, you will have brighter and more durable t-shirts than if any other technique was used.
Screen printing t-shirts is now one of the most used techniques used by garment printers, but should you like to design your own t shirt then it's best to have only a couple of colors at most if you like the benefits of screen printing Discover More Here.