High-temperature-resistant water-based transfer coating and preparation method thereof

Abstract

The invention discloses a high-temperature-resistant water-based transfer coating and a preparation method thereof. The high-temperature-resistant water-based transfer coating comprises water, 95% edible alcohol, a defoaming agent, a wetting agent, 40-45% of transfer resin, 15-26% of an acrylic emulsion, a thickening agent and a flatting agent. The transfer resin comprises the following raw materials: 12-20% of acrylic resin, 2-6% of a polymer of fumarated rosin, glycerol and pentaerythritol, 2-6% of a polymer of urea, glyoxal and formaldehyde, 8-12% of ethyl acetate, 6-8% of n-propyl acetate, 2-5% of polysiloxane resin, 8-11% of absolute ethyl alcohol, 3-4% of 2-hydroxyethylamine, 3-5% of ammonia water and 30-45% of distilled water. The coating is mainly designed for preventing human saliva from corroding a printing coating; the water-based acrylic resin is selected, multiple auxiliaries are cross-linked and polymerized, and polymer chains are cross-linked, so a linear structure is converted into a network structure; and the water resistance and the solvent resistance of the coating can be obviously improved, and the mechanical strength and the heat resistance of the coating are also improved.

Description

technical field [0001] The invention relates to the technical field of thin-film coating products, and more specifically relates to a high-temperature-resistant water-based transfer coating for transferring aluminized paper and a preparation method thereof. Background technique [0002] Transfer aluminized paper, or transfer paper, evaporation paper, the appearance is metallic, there are matt and glossy varieties, with excellent printing performance and degradable, recyclable and environmental protection. [0003] The production process of transfer aluminum-coated paper is to use biaxially stretched polyester film (PET) or BOPP film with a thickness of 0.02mm as the transfer substrate, and coat high-temperature resistant water-based transfer coating; Laminate with 32-36g / ㎡tobacco special tipping paper after cloth binder. At this time, the aluminum-coated layer on the carrier film is bonded to the paper base, and the metallic luster-sprayed aluminum molecular layer is peeled...

AI Technical Summary

Problems solved by technology

At present, the transfer coatings on the market mainly use oil-based transfer coatings or water-based transfer coatings. With the strengthening of people's awareness of environmental protection, oil-based transfer coatings have begun to fade out of the market. It is difficult to achieve the effect of oil-based transfer coatings in terms of performance such as durability. At present, the transfer coatings on the market are still mainly solvent-based.

Although some water-based transfer coatings achieve high temperature resistance by adding cross-linking agents before use, the effects of film-forming appearance, drying speed and printing adaptability are not ideal, and the addition of cross-linking agents may cause some follow-up problems, such as The hardening and deterioration of the paint in the feeding tank brings a lot of inconvenience to the process

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