JPS605480B2 - Method and device for manufacturing products with foil-stamped surfaces - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention seeks to provide a method and apparatus for manufacturing a novel foil-stamped surface product with an extremely good appearance.

Conventional foil-stamped products have a foil-stamped surface that is stamped with a single, continuous piece of foil.

Therefore, if the foil-embossed surface is a small flat surface or a gently quadratic curved surface, this will not be the case, but if the foil-embossed surface is a large surface, a sharply curved surface, or a cubic curved surface, foil breakage will occur. or many wrinkles may appear,
It was hardly of any use. Therefore, the present invention provides a method for easily manufacturing a product having a foil-stamped surface that does not wrinkle or break even if the foil-stamped surface is large or has a complicated shape, and has an extremely good appearance. The purpose is to provide a new method that can be used.

Another object of the present invention is to provide a novel apparatus that can easily manufacture products having foil-stamped surfaces with good appearance as described above. Figures 1 and 2 show an example of a product manufactured by the method for manufacturing a product having a foil-stamped surface according to the present invention.
On the foil stamping surface 2b of b, several narrow strips of foil 3b, 3b...
- is given close contact.

In this product lb, adjacent foils 3b,
The green ends of 3b do not overlap, but are butted as shown in FIG. For example, when the foil 3b has aluminum luster, it is formed as follows. A transparent top coat layer 6 is provided on a support film 4 such as a polyester film via a release layer 5, a vapor deposited layer 7 of aluminum is applied to the top coat layer 6, and finally an adhesive layer made of a heat-activated adhesive is applied. When the adhesive layer 8 side is applied to the foil-stamped surface 2b of the product lb and the support film 4 is pressed and heated in that state, the adhesive of the adhesive layer 8 is activated and the foil is pressed. 3b is glued onto the foil-stamped surface 2b of product lb. Then, the support film 4 is peeled off from the release layer 5. By sequentially repeating the foil placement and heating pressing at different positions, the product lb as described above is formed. The following method is used to perform such foil stamping. Figure 3 shows the up-down method, with a platform 9 on which the product lb is layered.
The foils 3b, 3b, 3b, . "Hoil 3b, 3b, 3"
When the wheels b, . . . stop running, the foils 3b, 3b, 3b, .
...is applied to the foil stamping surface 2M.

To be more specific, narrow foils 3b, 3b, . At S0b, the product lb is pressed against the foil-stamped surface 2b for a certain period of time (several seconds).

As a result, the product lb as shown in Figures 1 and 2
is made. ``During this process of foil stamping, foils 3b and 3b (Fig. 4A
) is cut by pressing with a stamp punch 10b whose pressing surface is flexible, leaving the foil support film 4 on the upper side as shown in FIG. As shown in the figure, the foil is applied to the stamped surface 2b in a butt-like manner with no gaps at all. By doing this, the foil-stamped surface 2b of the product lb has a mirror-like appearance as if it had been foil-stamped with a single piece of seamless foil, and there are no wrinkles, making it possible to obtain a product with an extremely good appearance. .

What's more, this method makes it possible to foil stamp on cubic curved surfaces and surfaces with complex shapes, which were previously considered impossible, as well as foil stamping on large surfaces, which was almost impossible in the past. has advantages. In addition, in the case of a product in which some wrinkles are not a problem, the width of each strip of foil can be made wider to reduce the number of man-hours. In FIG. 3, 9b is a stand on which the product lb is layered, 10b is a stamp punch that moves intermittently toward and away from the rigging 9b, 11b is a foil 3b,
3b, . . . is wound at intervals narrower than the width of the foil;
A second unwinding roll is used to wind the remaining halves of the foils 11b and 11b' at intervals narrower than the width of the foil. of.

The other roll 11 is placed between the foils wrapped in a roll amount of lb.
b'' They are arranged in parallel so that the rolled foils are placed side by side. Furthermore, 12b is a winding roll for intermittently winding up the foils 3b, 3b, . . . unwound from the rolls 11b, 11b'.

[Brief explanation of the drawing]

Fig. 2 is a perspective view showing an example of the product according to the present invention; Fig. 2 is a sectional view taken along line X-X in Fig. 1; Fig. 3 is a method and apparatus for manufacturing the product shown in Fig. 1. A is a front view, B is a partially omitted plan view, and FIG. 4 is an enlarged sectional view of essential parts showing the foil stamping process in the order of A, B, and C over time by the method of FIG. 3. Explanation of the code: lb...Product with a foil-stamped surface;
2b... Foil stamping surface, 3b... Foil, 4... Support film, 9b... Stand for layering the product, lob... Stamp punch, 11b... First unwinding roll, 11b'
...Second unwinding roll, 12b...Take-up roll're. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1 Several strips of narrow foil are arranged in parallel so that the edges of adjacent foils overlap, and then the foil is stamped with a stamp punch whose pressing surface is flexible so that the foils overlap. A method for producing a product having a foil-stamped surface, characterized in that the overlapping margin of the upper foil is cut off. 2. A stand on which the object to be stamped is placed, a stamp punch facing the stand and moving toward and away from the stand, and two unwinding rolls for unwinding the foil that has been brought into close contact with the support film;
It consists of a take-up roll that intermittently winds up a support film from which the foil has been partially peeled off due to foil stamping.
The two unwinding rolls are spaced apart from each other in the vertical direction, and the first unwinding roll has several strips of foil attached in close contact with each other at intervals slightly narrower than the width of the foil. It is made to be wound around the place, and
On the second unwinding roll, several strips of foil are attached in close contact with each other at intervals slightly narrower than the width of the foils, and the foils are positioned at the foil winding position of the first unwinding roll. Since the foil is wound so as to be offset by a distance slightly narrower than the width of the foil, the foil unwound from the two unwinding rolls runs in parallel between the punch and the table. 1. An apparatus for manufacturing a product having a foil-stamped surface, characterized in that the edges of each foil overlap each other when the foils are stamped.