In gravure color drift prone area should be how to deal with?
by:Kolysen
2020-12-24
In gravure color drift prone area should be how to deal with?
A, highlight part of the shallow network, small dot easy is missing, process design according to product printing eligibility conditions, clear printing can turn out into the smallest branch, and light color, you need outlets lowest value should be deeper than can transfer out.
Second, the highlights of the shallow white, such as white milk cup, white bowls, color and color white artifacts often occur, shall expressly provide the electric palette to according to the gray balance of neutral white dot percentage value, such as the C7 %, the M5 % % % %, Y5, C10, M8, Y8 %, can also color version and percentage composition, but don't be lack of color version, lack of a color version of the partial color, color;
Guarantee standard and stability of electric carving process, do try carving set highlights the value of accurate, not smaller, electric carving machine highlights the deepen appropriate level curve, can make the CMYK four-color version of the small outlets can carve remember out 3%.
3 the superposition of three primary colors, grey, printing when the product is big, partial red;
Blue print big partial blue, it is difficult to achieve balance and stability and process design to clear, if the manuscript is the traditional Chinese painting or class of products, such as sesame paste with gray, black is given priority to, electric points toning to adopt GCR gray component replacement process, namely USES the long stage black version, use black ink to replace composed of three primary colors gray and black.
Fourth, composite color such as dark brown, brown when printing easy to drift, or this kind of color is a large area of color and color piece, should communicate with customers, as far as possible use of three color, can't do the color, it is the transfer of figure alone do some special processing, the use of three colors, do not use four color, 2 it is to use black instead of three primary colors in a minimum of primary colors, complementary color, such as dark brown, brown green version, because in black with Y, M of dark brown, and brown, printing is not easy to drift.
Fifth, ultramarine blue, red, gold, light green heart may adopt special ink, color with pressure effect is bad.
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