Each color for screen printing requires a film positive for each color area of the artwork. But registration is where each color Butts up against each other exactly, with no overlay.

When you "digitize" something, you convert it from analog to digital. this is used to tell our embroidery machine how to move the needle and sew to create embroidered designs from your artwork

Generally used to describe printer resolution and often used to describe scanner resolution. Obviously the higher the number the better the resolution of the image. By doubling the number the resolution actually becomes four times larger. In the old days (a few years ago) 300 dpi was the norm for a laser printer. Unfortunately, at 300 dpi, the edges of the image were still a little ragged and at 300 dpi a halftone will only generate around 16 gray levels. A 600 dpi halftone will give you over 300 gray levels. DPI is also used as the designation for a scan. Like printers, the higher the number the higher the resolution. Most scanners default to 300 dpi when they should really be set much higher when scanning line art.

A series of large and small dots that represent image areas of a continuous tone image. Continuous tone artwork can be converted into printable halftone dots using a process camera or by scanning into a computer and outputting onto film or paper as a series of dots. Even the photos in magazines are printed as a series of halftone dots. They are just smaller than we use in garment printing.

A moiré is an interference of two patterns. It generally has a checkerboard pattern to it. You get moiré’s when using patterns on patterns - as you do when you put halftone dots on screen mesh and/or halftone dots on screen mesh on a shirt pattern. Moiré patterns can be reduced or even eliminated by using a different angle (see Angles) and using a higher mesh count in relation to the LPI of the halftone. The general rule of thumb has been that to reduce moiré patterns use a mesh that is 4 to 5 times the LPI. In example, when using a 50 LPI halftone, a mesh count of 200 would be a good start. There have been lengthy articles written about moiré.

The amount of coverage in a halftone dot is called Percentage or Tint. A 10% dot is much smaller than an 80% dot. When screen printed, a dot grows in size. This is called dot gain and it can be as much as 30% when printing on an automatic press and 40% when using a manual. For this reason you should try not to apply any tints in designs above 70% (they will just grow and be a solid). It is also important to take into account dot gain when using tints. Always use a smaller tint percentage than you think because in most drawing programs you cannot specify the dot gain (you can in Photoshop!).

the most common ink used in commercial garment decoration. this is a plasticine or plastic ink. it is extremely dense and opaque, It can be given additives to make it translucent. When heat cured it is Preeminently adhered to the textile. a catalyst can be added for Poly and Nylon garments. it comes in neon or day-glow colors, glitters, puff, crystalline and many other forms.