Magic Playing Cards -The Effect Of The Properties Of The Ink On The Color Of The Print
We do magic playing cards and The final effect of
the print is closely related to the physical and chemical properties of the
ink. The composition of the ink determines the properties of the ink:
The size of the pigment particles and the degree of
dispersion
Although the role of the ink film capillary is an
important factor in forming the gloss of the print, the apparent size of the
pigment particles in the dispersed state is more important, which directly
determines the state of the capillary of the ink film. Therefore, the pigment
particles are small and well dispersed, which is advantageous for forming a
smooth ink film, and is also very advantageous for improving the gloss of the
printed matter.
The viscosity of the binder and the content of the
pigment
According to the interface chemistry, the capillary
permeation rate is inversely related to the viscosity of the liquid, that is,
the permeation rate decreases as the viscosity increases. The capillary network
structure formed between the ink pigment particles is an important aspect that
determines the gloss of the print. At the moment of imprinting, the ink is
integrally pressed into the larger pores of the paper; after imprinting, the
binder begins to separate from the ink and penetrate into the smaller pores of
the paper. Therefore, the size of the ink film capillary determines the amount
of separation of the binder. Capillary retention of the binder is much more
effective than printing pressure to press the binder into the pores of the
paper for magic playing cards
Drying time
The rapid drying of the ink film on the paper surface can
reduce the amount of the binder which penetrates into the paper pores, thereby
improving the gloss and smoothness of the ink film. The high gloss of the ink
film means that the specular reflection of the surface is relatively high so
that the human eye can see that the white light reflected by the surface is
much less than the ink film with low glossiness in most cases so that the
saturation of the color is higher. Therefore, the print with high gloss looks
more vivid and full. The printing ink layer of the spot color ink is mostly
translucent or opaque. When selecting the ink formula, the influence of the
light transmittance of the ink layer on the spot color printing should be
considered according to the actual situation.
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