What are the classifications of ink?

(1) Classified by printing method

① According to the layout, there are inks used for letterpress, offset, gravure, photo gravure, screen printing, etc.

② According to the printing method, there are inks used for offset printing, direct printing, etc.

(2) Classified by the substrate

According to the substrate, there are inks for paper, metal, plastic, fabric, etc.

(3) Classified by drying form

① According to the drying mechanism, there are inks such as penetration drying type, oxidation polymerization type, evaporation drying type, light hardening type, heat hardening type, and cooling curing type, etc.

② According to the drying method, there are: natural drying type, hot air drying type, infrared drying type, ultraviolet drying type, cooling drying type, etc. inks.

(4) Classified by ink characteristics

① By color, there are: yellow, red, blue, white, black, gold, silver, gold powder, fluorescent color, pearlescent color, etc.

② By function, there are: magnetic ink, anti-counterfeiting ink, edible ink, foaming ink, aromatic ink, recording ink, etc.

③ By durability, inks can be classified as: lightfastness, heat resistance, solvent resistance, abrasion resistance, alcohol resistance, chemical resistance, etc.

(5) Classified by ink composition

① According to raw materials, there are: drying oil type, resin oil type, organic solvent type, water-based type, paraffin type, ethylene glycol type and other inks;

② By form, they can be classified as: gel-like, liquid and powder inks.

By application, they can be classified as: news ink, book ink, packaging ink, building materials ink, trademark ink, etc