Page 57 - 스크린인쇄기술정보지-11월호-전자책

S
A NEW
FESP
FESPA NEWS Marshall Atkinson
Nessan Clear
y

Water-based inks can be more challenging to work with, work best with cotton or blends with a very high cotton

mainly because of the danger that they will dry out and clog mix.
the screens so that you have to be careful to keep the
Many ink manufacturers now offer High Solid Acrylic or
screen damp. You can add wetting sprays and retarding
HSA ink, which is still water-based but contains a thickening
chemicals to improve the dwell time on the screens but this
binder that acts a little bit like a plastisol ink. This stops the
may increase the drying time. Some screen printing
ink from drying out too quickly, so there’s less danger that
machines can spray water mist around the printheads to
it will dry out on the screen. It also allows the ink to stretch
prevent the inks drying and clogging up the equipment.
as other colours are printed on top, which makes it easier
It’s worth noting that water-based inks generally have a to create complex halftones. This ink can also be used for

much shorter shelf-life than their plastisol counterparts. lycra or spandex garments.

Water-based inks do require more drying time and
therefore have higher energy costs. Most water-based inks

are supplied premixed as ready to use. This ink generally

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