Thermochromic inks when printed are coloured below a specified
temperature and when this temperature is exceeded change to colourless
or to another lighter colour. They are available in a range of
activation temperatures and colours. Activation temperatures ranging
from 0 to 65º Centigrade are possible but the standard activation
temperatures are 15ºC (Cold), 31ºC (Body temperature)
and 45ºC (Hot). The colour change is reversible so when cooled
the original colour will be restored.
The range of standard colours available are shown below:-
OFFSET
FLEXO
SCREEN
Cold
Colour
Warm
Colour
Cold
Colour
Warm
Colour
Cold
Colour
Warm
Colour
Black
(427)
Colourless
Black
(429)
Colourless
Black
(426)
Colourless
Blue
(277)
Colourless
Blue
(278)
Colourless
Blue
(286)
Colourless
Red
(182)
Colourless
Red
(183)
Colourless
Red
(185)
Colourless
Orange
(169)
Colourless
Orange
(170)
Colourless
Orange
(172)
Colourless
Green
(5585)
Colourless
Green
(557)
Colourless
Green
(341)
Colourless
Magenta
(217)
Colourless
Magenta
(218)
Colourless
Magenta
(226)
Colourless
Purple
(2563)
Colourless
Purple
(2573)
Colourless
Purple
(2593)
Colourless
Green
(358)
Yellow
(393)
Green
(359)
Yellow
(394)
Green
(362)
Yellow
(3965)
Orange
(155)
Yellow
(600)
Orange
(156)
Yellow
(601)
Orange
(158)
Yellow
(604)
Purple
(270)
Pink
(2365)
Purple
(271)
Pink
(217)
Purple
(273)
Pink
(2375)
Burgundy
(508)
Blue
(304)
Burgundy
(507)
Blue
(305)
Burgundy
(506)
Blue
(306)
We can supply inks to suit most print processes as follows :-
