They can be used to reproduce your t-shirt sketch onto your T-shirt, and unsurprisingly, they present different results. There are essentially five distinct types of t-shirt printing ready for use today. Each has it's own benefits and also it's own restrictions.
Screening Printing
It is by far the oldest and still most commonly used procedure. It consists at screens pressed up against cloth to place paint onto shirts one color per screen. Pros: cost effective, high quality, professional, long life. Cons: each color requires a different screen, messy, need to reproduce various tees at once with the same illustration to be profitable.
Heat Press/INKJET/LASER Transfers
The figure is transferred on a paper and set under a heat press to print the design onto the tee. It's not difficult to print many colors and complex figures, does not necessitate separate colors to be applied independently and is awesome for small orders. But the fabric is the brightest part of the illustration so it works well just on white shirts, doesn't work on black t-shirts. It cracks and fades away easily.
Vinyl Cutters - Use a mechanism to cut out illustrations on appropriate solid color sheets of vinyl. Use heat to glue cut vinyl to the t-shirt. Pros: high quality, durability, without difficulty customizes different shirts, perfect for small orders. Cons: have to separate and cut out each color alone, doesn't work good for figures with intricate patterns or illustrations that show a lot of background of the t-shirt inside the illustration.
Direct to Garment - Another popular practice is the Direct-to-Garment or DTG process. In this method, an inkjet printer is used for printing a picture or an artwork directly onto the garment. Pros: reduces steps, patterns doesn't have heavy feel like screen printing, great for small orders, easily customize distinct shirts. Cons: the fabric is the brightest part of the design: works good on white tees. There is more of a challenge to the DTG operator to get black prints to come out correctly, but it can be done.
Dye Sublimation - Dye sublimation is perfect for full color figures on white or light colored garments. You can equally use this technique on non-textile products such as mugs, mouse pads, tile, puzzles, coasters, key chains, etc. It is used only on man-made fabrics like polyester. You cannot print on 100% cotton shirts.
If you are considering entering the tee manufacturing job than any method is workable but without a doubt, screen printed t-shirts are better in superiority than high temperature transfer tees. If you want 6 or less tees for fun and restricted use such as for a gag, for novelty, or for a party, you may want to consider making heat transfer shirts.
Author Resource:
My name is AvantusX, I have been creating and developing camisetas professionally for over 9 years.