Seamless holographic anti-counterfeiting transfer coating and preparation method thereof

Abstract

The invention relates to a plate-joint-free holographic anti-counterfeiting transfer coating and a preparation method thereof. The plate-joint-free holographic anti-counterfeiting transfer coating comprises a conventional solvent and conventional auxiliaries and also comprises resin, wherein the resin comprises the following components in percent by weight: 10-30% of high-softening temperature resin, 10-30% of medium-high-softening temperature resin, 20-40% of medium-softening temperature resin, 10-20% of medium-low-softening temperature resin and 10-20% of low-softening temperature resin. The invention also discloses the preparation method of the plate-joint-free holographic anti-counterfeiting transfer coating. An obtained film has the advantages that the problem that a mould pressing plate-joint-free transition effect is poor can be well solved, and difference of value of chromatism can reach an excellent level that delta L is less than or equal to 2; the obtained film has a relatively wide mould pressing applicable range, and difference of upper limit and lower limit of a mould pressing temperature can be more than 15 DEG C; and an obtained coating layer has a good transfer release effect, a relatively good aluminized coating binding force, relatively broad gravure printing adaptability and good overall performance.

Description

technical field [0001] The invention belongs to the technical field of anti-counterfeiting packaging materials, and in particular relates to a seamless holographic anti-counterfeiting transfer coating and a preparation method thereof. Background technique [0002] Holographic transfer aluminized anti-counterfeiting packaging materials have been mass-applied to high-end cigarette packaging in China since the early 2000s, because they are both beautiful and anti-counterfeiting (compared to non-holographic packaging), energy-saving and environmentally friendly (compared to earlier OPP or PET composites) Film technology) and many other advantages, great progress has been made in the fields of cigarette packaging, wine box packaging, cosmetic packaging and so on. Among them, the production process of the most critical holographic anti-counterfeiting effect has also entered the era of double-plate molding without seam (hereinafter referred to as "seamless") from the early single-p...

AI Technical Summary

Problems solved by technology

The coating film obtained in the present invention well solves the problem of poor transition effect of molded seamless plate, and the color difference between inside and outside the transition zone can reach an excellent level of △L≤2

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