This week’s blog will address the G-Is of typical screen printing terms. We will address the rest of the alphabet in future blogs.
Ganging – inserting multiple images on one screen.
Gelling – partially curing Plastisol ink by raising the temperature to 175 – 240º F.
Gray Scale – a continuous (colorless) tone image of white to black shadings.
Halftone – an image converted into large and small dots.
Halftone Dot Shapes – the ideal dot shape for screen printing is elliptical; round, square and diamond shapes are also used.
Halftone Line Count – number of lines per inch; common halftone line counts for screen printing range from 35 LPI to 65 LPI.
Hand – the feel of a print, normally described as soft or rough.
Heat Transfer – reverse image on special paper transferred to the garment with a heat transfer press.
High Density – “lenticular” printing that provides special effect of depth.
Hot Split Transfer – used on light colored garments to provide soft hand by limiting ink transfer.
Halftone or Grayscale – like newsprint, artwork that reproduces tones by printing small dots in varying spaces and densities.
Image Area – area that contains the image on a screen.
Index Color Printing – method of image representation that limits the color palette and prints colors separately, and in specific order.
Infrared – heat producing wavelengths typically used in a flash cure unit or textile dryer. Ink – term for print-making substance; in textile printing, most commonly Plastisol.
Ink Additives – chemical agents added to improve printing properties.
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