Hot stamping foil for glass

Abstract

The invention discloses a hot stamping foil, and particularly relates to a hot stamping foil containing variable information numerical codes and applied to glass, the hot stamping foil comprises a base film layer, a release layer, an information layer, a bottom coating liquid layer, a digital printing layer, an aluminum plating layer and a back adhesive layer which are stacked in sequence, and the back adhesive layer is a mixture of thermoplastic resin, epoxy resin, a curing agent and a coupling agent. The coating weight of the back adhesive layer is 1.1-6g / m<2>, and the back adhesive comprises the following components, by weight: 10-50 parts of thermoplastic resin, 50-90 parts of epoxy resin, 2-15 parts of a curing agent and 0.2-2 parts of a coupling agent. The hot stamping foil disclosed by the invention can be hot-stamped on materials such as glass at a high speed, and the hot stamping effect is excellent.

Description

technical field [0001] The invention relates to a hot stamping foil, in particular to a hot stamping foil used on glass containing variable information numbers. Background technique [0002] Because of its special optical effect, laser holographic patterns have become one of the more commonly used technical means to improve product packaging image and anti-counterfeiting. Now the most commonly used is to combine laser holographic anodized aluminum with thermal transfer printing technology to transfer holographic images to When printing on packaging objects, there are also products that combine holographic images with variable information two-dimensional codes. However, the combination of digital printing and holography and the structure of the overall hot stamping foil are not well designed, and the materials of various products are different. The existing thermal transfer materials cannot perfectly solve the thermal transfer process on all materials, and can only realize ho...

AI Technical Summary

Problems solved by technology

[0002] Because of its special optical effect, laser holographic patterns have become one of the more commonly used technical means to improve product packaging image and anti-counterfeiting. Now the most commonly used is to combine laser holographic anodized aluminum with thermal transfer printing technology to transfer holographic images to When printing on packaging objects, there are also products that combine holographic images with variable information two-dimensional codes. However, the combination of digital printing and holography and the structure of the overall hot stamping foil are not well designed, and the materials of various products are different. The existing thermal transfer materials cannot perfectly solve the thermal transfer process on all materials, and can only realize hot stamping on packaging materials such as paper, but for some materials with stable properties and not easy to react with other substances, such as Glass, ceramics, etc., the existing hot stamping foils are prone to problems such as hot stamping failure, poor adhesion, solvent resistance, water resistance, weather resistance and wear resistance during the hot stamping process. Therefore, the current hot stamping technology on glass There are only anodized aluminum flower films, or the use of primer printing technology. These solutions either cannot obtain high-quality product packaging, or have disadvantages such as complex processes, inaccurate registration, low efficiency, and high cost. So far, there is no one that can Anodized aluminum combined with variable information QR code hot stamping foil for hot stamping on glass and other materials