JP2570455Y2 - Transfer foil - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer foil used for thermal transfer printing.

[0002]

2. Description of the Related Art Conventionally, thermal transfer printing has been widely used as one of the methods for printing a pattern on a printing medium such as plastic, glass, metal, and porcelain that is difficult to print directly. That is, a pattern layer is provided on one side of a base material layer such as a polyester film via a release layer, and a transfer foil having a heat seal layer provided thereon is used. After applying a pressure to form a pattern on the printing medium, the substrate layer is peeled off. Then, usually, the transfer foil in the form of a roll is intermittently fed out by a hot stamping machine, and the transfer foil is positioned with respect to the printing medium so that the transfer is continuously performed. In this case, a positioning pattern such as a phototube mark is printed on the transfer foil separately from the picture pattern, and the positioning is performed by this.

[0003]

However, in the conventional transfer foil, a pattern for positioning a phototube mark or the like is used.
The pattern and the pattern are printed at the same time , and the positioning pattern that does not need to be transferred, such as a phototube mark, is provided on the release layer in the same manner as the pattern layer. When this occurs, the positioning pattern tends to fall off, and there is a problem in that when the substrate layer is rolled up after the transfer processing, it falls off from the substrate layer and causes dirt and dust.

Therefore, it is conceivable to part-coat the release layer in such a manner that the printed portion of the positioning pattern is removed and print the positioning pattern directly on the base material layer. However, the release layer is almost colorless and transparent. In some cases, it is difficult to match the registration with the positioning pattern .

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a transfer foil that does not cause a positioning pattern such as a phototube mark to fall off after transfer processing. .

[0006]

In order to achieve the above object, the transfer foil of the present invention is provided with a release layer, a pattern layer, and a heat seal layer on one side of the base layer, and on the other side of the base layer. before definitive in
Positioning when transferring the picture layer to a position that does not overlap with the picture layer
Is printed with an ink having adhesiveness to the base material layer.

[0007]

In the transfer foil having the above structure, a positioning pattern such as a phototube mark which does not need to be transferred is directly and firmly adhered to the base material layer. Therefore, the positioning pattern
Even if wrinkles or the like occur in the base material layer due to heat during transfer, the base material is not easily peeled off and does not fall off when the base material layer after transfer processing is wound up.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view showing the structure of a transfer foil according to an embodiment of the present invention. In the figure, reference numeral 1 denotes a polyester film as a base material layer, on one side of which a release layer 2 is provided, and a pattern layer 3 is printed on the release layer 2 so as to cover the pattern layer 3. Heat seal layer 4
Is provided. On the other surface side of the base material layer 1, a position for positioning a phototube mark or the like is set so as not to overlap the picture layer 3 .
Pattern 5 is printed.

The printing of the positioning pattern 5 is performed by inverting the printing material (base material layer) using a gravure printing type turn bar, so that the release layer 2, the pattern layer 3, and the heat seal layer on the opposite surface are formed. 4 and inline printing is performed simultaneously. In this case, as the ink used for printing, an ink having adhesiveness to the base material layer 1 is used.

The transfer foil is manufactured in a rolled state, and is transferred to a known hot stamping machine at the time of transfer to a product. In the hot stamping machine, the transfer foil is intermittently unwound from the winding, is positioned by the positioning pattern 5, and is transferred. Then, the base material layer 1 after the transfer is wound up in a roll shape. Here, the position
Since the ink of the pattern for determination 5 is firmly adhered to the base material layer 1, it does not come off even after the transfer processing.

[0012]

As described above, the transfer foil of the present invention has an adhesive property with the substrate layer on the surface of the substrate layer opposite to the transfer side of the transfer-free positioning pattern such as a phototube mark. Since it was printed with ink, the positioning pattern
As in the case of a conventional transfer foil provided with a release layer on the release layer, the ink layer of the positioning pattern that does not require transfer does not fall off when the base layer is rolled up after the transfer processing. In addition, it is possible to prevent the generation of foil residue that becomes dirt and dust.

[Brief description of the drawings]

FIG. 1 is a structural sectional view showing an embodiment of a transfer foil according to the present invention.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 base material layer 2 release layer 3 picture layer 4 heat seal layer 5 positioning pattern

Claims (1)

(57) [Scope of request for utility model registration] 1. A release layer on one surface of the base layer, picture layer, the provided heat seal layer, said pattern layer which definitive on the other surface of the base layer
A transfer foil , wherein the pattern for positioning at the time of transfer of the picture layer is printed with an ink having adhesiveness to the base material layer at a position not overlapping with the transfer foil.