Anti-scratch, fold-resistant and solvent-resistant thermosetting transferring system paint and preparation method thereof

Abstract

The invention discloses anti-scratch, fold-resistant and solvent-resistant thermosetting transferring system paint and a preparation method thereof. The paint comprises the following components by weight percent: 5 to 8 percent of acrylic resin, 6 to 10 percent of H-type nitrocotton, 5 to 8 percent of cellulose ester resin, 2 to 5 percent of butylated amino resin, 0.1 to 0.3 percent of organic acid catalyst, 0.3 to 0.5 percent of adhesive force accelerant, and 68.5 to 79 percent of solvent. By virtue of a thermosetting reaction, the resin of a transferring coating is limitedly cross-linked, so that the hardness and flexibility are improved, and compared with the traditional thermoplastic transferring system, the scratch resistance, fold resistance and solvent resistance are remarkably improved, and the high-performance requirement of a product and a printing process can be better met; and compared with other thermosetting transferring systems, the defects that the transfer is poor and the attachment to aluminum is poor can be overcome. In addition, the resin with appropriate activity is preferred, so that the paint can be directly used as single-component paint, and the operability of the production ingredients is improved.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a thermosetting transfer system coating with abrasion resistance, folding resistance and solvent resistance and a preparation method thereof. Background technique [0002] Because the transfer aluminum plating process has the advantages of economy, environmental protection, non-toxic and tasteless, this process is also more and more widely used in the packaging industry. Especially in the field of cigarette packs and wine packs, most of them have been converted to this process for production. [0003] At present, the packaging transfer coatings on the market are all thermoplastic transfer systems. As the printing process and product requirements are getting higher and higher, customers have also put forward higher and higher requirements for the abrasion resistance, folding resistance and solvent resistance of the transfer coating. Due to the limitations of the thermoplastic r...

AI Technical Summary

Problems solved by technology

However, although its hardness is high, the surface smoothness of the coating is too high, resulting in poor adhesion to the aluminum layer

In addition, because the patented formula preferably selects hydroxyacrylic acid, high-hydroxy cellulose and nitrocellulose that contain more reactive groups, and at the same time, uses methylated amino resin and epoxy resin with very high reactivity as catalysts, which must be used as catalysts. The use of two-component or multi-component coatings results in less operability than single-component coatings

In addition, the customer must use it immediately, and the excess ingredients will be unusable due to the reaction of the resin, resulting in waste

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