Mirror silver ink, preparation method and product thereof

Abstract

The invention relates to the field of inks, in particular, it provides a mirror silver ink, a preparation method and a product thereof. The water-based acrylic modified polyester resin in the mirror silver ink can improve the chemical resistance of the mirror silver ink coating. Water-based baking varnish epoxy resin can improve the alkali resistance of the mirror silver ink coating. Water-based blocked isocyanate curing agent and water-based phenylamino resin can increase the crosslinking density between raw materials. The modified silane coupling agent can be directly added to the mirror silver ink without affecting the storage stability, while improving the water resistance of the ink coating and the bonding force with the substrate. The mirror silver ink is harmless to the human body and the environment, and does not require a protective layer. A single layer of coating can be cleaned with 4% NaOH at 70°C without removing silver, and does not affect adhesion and mirror effect.

Description

technical field [0001] The invention relates to the field of inks, in particular to a mirror silver ink, a preparation method and a product thereof. Background technique [0002] Mirror silver ink is made of mirror silver, a small amount of resin and a special thinner as the basic material. It is screen-printed on the back of the transparent sheet, and has the glossy effect of a mirror or bronzing surface when viewed from the front. Mirror silver ink has excellent covering property, and has the same mirror effect as silver vapor-deposited sheet. [0003] Since most of the mirror silver on the market at this stage is an oily system, the resins, diluents and additives in the ink are all solvent-based. Screen printing requires the ink to be as thin as water, so a large amount of diluent needs to be added, resulting in high VOC content and great pollution to the environment. At the same time, there are steps such as boiling water, alkali treatment and ultrasonic cleaning in th...

AI Technical Summary

Problems solved by technology

[0005] The first object of the present invention is to provide a kind of mirror silver ink, to alleviate the oily system in the prior art, which is harmful to the human body and the environment, the mirror silver ink is not resistant to alkali and ultrasonic cleaning, needs a protective layer, and the coupling agent needs to be added during construction and other technical issues