Waterproofing ink-jet printing media and its production

Abstract

A water-proof medium for ink-jet print is composed of a substrate layer and an ink-absorbing layer prepared from inorganic pigment and adhesive. Said inorganic pigment is the nanofiber-shaped alpha-AlO(OH) and nanoflake-shaped alpha-AlO(OH).

Description

technical field

[0001] The invention relates to a waterproof inkjet printing medium and a preparation method thereof. The inkjet printing medium has the characteristics of fast ink absorption, instant drying, and certain waterproof, light-resistant and friction-resistant properties. Background technique

[0002] Inkjet recording materials usually consist of a carrier and an ink-absorbing layer coated on the carrier. The ink-absorbing layer can be roughly classified into two types: one comprising a water-soluble polymer, and the other comprising an inorganic pigment and a resin binder. In the first type of ink-absorbing layer, the ink is absorbed by the swollen water-soluble polymer. Since it forms a continuous and uniform film, the gloss is excellent, but the ink-absorbing performance (ink absorption speed, drying speed) is low, and in addition , the waterproof and light resistance properties are not too remarkable; in the second type of ink-absorbing layer, the ink is abs...