Transfer printing method for transferring print film containing ultraviolet curing type adhesive

Abstract

The invention provides a transfer printing method of a transfer printing film containing ultraviolet curable adhesive, which comprises following steps: using a cement layer of the transfer printing film and adopting heating and pressurizing method to paste the transfer printing film to the surface of a printing stock; striping a carrier film to transfer a graph-text decoration layer to the surface of the printing stock; curing the surface of the printing stock by ultraviolet irradiation; acquiring the product which is produced by firmly combining the graph-text decoration layer and the surface of the printing stock; wherein, the essential component of the cement layer of the transfer printing film is ultraviolet curable resin. The transfer printing method of the invention can improve the initial adhesion of the cement layer of the ultraviolet curable adhesive transfer printing film and facilitate quick paste by using the existing transfer printing press; furthermore, the transfer printing pattern is given the characteristics of irreversibility and firmer combination between the transfer printing pattern and the surface of the printing stock by ultraviolet curing. Therefore, the method has the advantages of simple production operation technique and quick transfer printing speed, and is especially suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to a transfer printing method, in particular to a transfer printing method of a transfer printing film containing an ultraviolet light-curable adhesive, and more particularly relates to a method of hot pressing, in which the printed pattern is first pasted on the surface of the substrate, and then passed through UV-cured transfer printing method. Background technique [0002] The traditional thermal transfer printing film generally includes a carrier film, a graphic decoration layer and an adhesive layer. When transferring, through the action of heat and pressure, the adhesive force of the adhesive layer is used to make the graphic decorative layer detach from the carrier film and transfer to the printing substrate. object surface. Hot melt adhesive, as the adhesive of thermal transfer printing film, has been widely recognized and applied after decades of practice. This is because hot melt adhesive is a solid substance under norm...

AI Technical Summary

Problems solved by technology

This method has many steps, complex process, low hot stamping efficiency, and is not suitable for continuous industrial production.

Since the UV-curable adhesive has the adhesive properties of the pressure-sensitive adhesive before it is cured, some people propose to apply the UV-curable adhesive to the bonding layer of the thermal transfer printing film, such as the patent No. ZL 00803449. Technology to prepare transferred picture transfer printing" is to use ultraviolet curing adhesive as the adhesive of transfer printing film, but because the initial viscosity of ultraviolet curing adhesive is poor at room temperature, when it is used as adhesive, it is generally first to transfer Paste the printing film on the surface of the substrate, then irradiate the surface of the substrate with ultraviolet light, and finally peel off the carrier film

Since the transfer method separates the sticking process and the peeling process of the carrier film, it not only increases the processing time and affects the transfer speed, but also requires the transformation of the original transfer equipment

In addition, before the ultraviolet light is irradiated, the uncured adhesive is particularly easy to stain the part of the substrate that does not need to be transferred, which greatly reduces the qualified rate of the transferred product

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