INK FOR JET PRINTING AND DEVICE FOR JET PRINTING Russian patent published in 2016 - IPC C09D11/32 C09D11/38 B41J2/01 B41M5/00 

Abstract RU 2588216 C2

FIELD: printing industry.

SUBSTANCE: invention relates to inks and device for jet printing. Ink for jet printing contains a water-dispersible colouring agent, a surfactant, a wetting agent, a water-dispersible resin, a wetting agent, containing at least polyatomic alcohol with equilibrium moisture content equal to 30 wt% or higher at 23 °C and relative humidity of 80 %; compound of formula (1), and water and at least one compound from a group of compounds of formulae (2)-(4), specified in description. Water-dispersible colouring agent is selected from a group consisting of self-dispersed pigment, pigment dispersed with a pigment dispersing agent and particles of resin, containing pigment. Total amount of water-dispersible colouring substance and water-dispersible resin ranges from 8 to 35 % by weight. Weight ratio of water-dispersible resin to water-dispersible colouring substance ranges from 2 to 8. Described also is a device for jet printing, containing said ink.

EFFECT: disclosed ink provides an image with high glossiness and resistance to offsetting with prevention of shrinkage and foaming.

7 cl, 2 dwg, 2 tbl, 20 ex

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RU 2 588 216 C2

Authors

Goto Khirosi

Dates

2016-06-27Published

2013-01-25Filed