JPH059339Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] This invention relates to a press-through pack.

[Conventional technology]

The press-through pack, as shown in Figure 2,
A storage body 1 is provided with a large number of pockets 2, in which tablets T, etc. are stored, and a backing sheet 10 is adhered to the outside of the pockets 2 to seal them.
When opening the package, press it with your finger from the outside of the pocket part 2 to break through the backing sheet 10 with the tablet T,
It is designed to take out tablets.

By the way, such a backing sheet 10 is usually made of an aluminum foil with a thickness of about 20 μm as a base material, with a heat seal layer provided on one side, and a printed layer and a surface resin layer provided on the other side. However, since this printing layer is formed on the glossy surface of the aluminum foil, there is a drawback that the printed characters and patterns are difficult to read due to the high reflection of the glossy surface. Therefore, it is conceivable to provide a resin layer containing a filler on the glossy surface of the aluminum foil to obtain a matte effect. This utilizes the fact that light is scattered by the unevenness formed on the surface of the resin layer by the filler.
For example, during use, a water film is formed on the resin layer due to sweat or moisture on the fingers, filling in the unevenness of the surface.
There is a problem that the matte effect disappears.

Furthermore, when the flange portion 3 of the storage body 1 is transparent,
It is required to print on both sides of the backing sheet so that the trademark, etc. can be confirmed from both the front and back sides of the press-through pack, and in this case, the characters, etc. must be clearly readable from both sides of the sheet.

[Problem for invention]

Therefore, the problem of this invention is to make it possible to clearly read characters printed on both sides of aluminum foil, which is the base material of the backing sheet of the press-through pack.

[Means for solving problems]

In order to solve the above problems, this invention has a storage body with a transparent flange and multiple pockets, and a container with a thickness of 15 to 15 cm with fine ridge-like unevenness formed on both sides.
A printing layer and a heat-sealing layer were provided on one side of a 30μ aluminum foil, and a backing sheet with a printing layer and a transparent surface resin layer was attached to the other side.

[Function] Since fine ridge-like unevenness is formed on both sides of the aluminum foil, the printed layers on both sides can be clearly distinguished by diffused reflection.

〔Example〕

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

As shown in the figure, the press-through pack of this invention has a storage body 1 in which transparent flange portions 3 are provided around the periphery of a large number of pocket portions 2, and a backing sheet 10 is adhered thereto.

The backing sheet 10 has an aluminum foil 11
A printed layer 12 and a heat seal layer 13 are provided on one side, and a printed layer 12 and a transparent surface resin layer 14 are provided on the other side.

As shown in FIG.
20a, and the outer aluminum foils 11a and 11b are removed,
Fine ridge-like unevenness is formed on both sides of the remaining foil 11.

The aluminum foil 11 may be either hard or soft, but a hard foil with a thickness of 15 to 30 microns is desirable from the viewpoint of protecting the contents and breaking through when taking them out.

The heat sheet layer 13 is made of vinyl resin such as vinyl chloride, vinyl chloride-vinyl acetate copolymer, etc.
The heat seal layer 13 is made of an ordinary thermoplastic adhesive whose main component is polypropylene resin such as chlorinated polypropylene, carboxylated polypropylene, or a mixture thereof.
Glue it to the flange part 3 of.

The transparent surface resin layer 14 is made of a resin whose main component is nitrocellulose, acrylic resin, epoxy resin, or a mixture thereof.

The printed layer on the surface resin layer 14 side may be provided on the outer surface side of the surface resin layer if necessary. Further, an anchor coat layer can be provided to improve the adhesion between the aluminum foil 11 and the printed layer 12 or the surface resin layer 14.

〔effect〕

According to this invention, as described above, as the backing sheet of the press-through pack, aluminum foil with fine ridge-like unevenness formed on both sides by multiple rolling is used, so light is scattered by the uneven surface. The excellent matte effect that is produced makes it very easy to read characters printed on both sides of the aluminum foil, and since the surface resin layer is transparent, the printed characters can be easily read by taking advantage of the aluminum foil's excellent matte effect. The press-through pack can be clearly read and has an excellent design.

[Brief explanation of the drawing]

FIG. 1 is an enlarged sectional view showing an example of a backing sheet, FIG. 2 is a sectional view showing the structure of a press-through pack, and FIG. 3 is a schematic diagram showing a multiple rolling method. DESCRIPTION OF SYMBOLS 1... Storage body, 2... Pocket part, 3... Flange part, 10... Backing sheet, 11... Aluminum foil, 12... Printing layer, 13... Heat seal layer, 14... Transparent surface resin layer.

Claims (1)

[Scope of utility model registration request] The storage body has transparent flanges around the edges of many pockets, and is made of aluminum foil with a thickness of 15 to 30μ with fine ridges formed on both sides.A printing layer and a heat-sealing layer are printed on one side, and a printing layer is printed on the other side. A press-through pack in which a backing sheet provided with a layer and a transparent surface resin layer is adhered by the heat-sealing layer.