PROTECTIVE SIGN PRINTING Russian patent published in 2021 - IPC B41M3/14 B41M5/00 C09D11/322 C09D11/50 C09D11/52 

FIELD: printing.

SUBSTANCE: invention relates to a method and a system for printing protective signs. The method for printing a protective sign includes ink jet printing, while ink contains one or more pigments, wherein at least one pigment satisfies the formula

where Δρ is a density difference between the pigment and ink binder (kg/m³); g is the constant of acceleration of free fall (9.81 m/s²); d is a diameter D90 of a pigment particle (mcm); k_B is the Boltzmann constant (1.381·10^-23 J/K), and T is a temperature (°C). Ink jet printing is carried out by a flexible structure of a printing head for jet printing, and printing is carried out for applying one or more protective signa to a carrier.

EFFECT: invention provides for universality and easy variability of protective sign printing.

10 cl, 12 tbl