JPH0443475Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) This invention relates to packaging with a product identification bar code symbol that can be read by an identification device such as a scanner, and is particularly suitable for use as a retort pouch or boil-in pouch for food.

(Prior art) In supermarkets, etc., barcodes attached to products are used to identify products such as scanners.
The symbol is read to determine product manufacturer identification, product item identification, product number, product name, price, etc.

For example, when a food packaging bag made of a transparent synthetic resin bag has a barcode symbol printed solidly on the front side, the characters, figures, etc. written on the back side are part of the barcode symbol. This may cause the identification device to misread the information.

(Problem to be solved by the invention) The barcode symbol can be seen through the other surface, causing the identification device to misread it and requiring manual switching to input data into the identification device. There was a problem in that the work had to be redone at the counter.

(Means for solving the problem) The present invention prevents the product identification device from erroneously operating by making it impossible to see through either the front side or the back side of the part where the barcode symbol is attached. The intermediate layer is an opaque synthetic paper made of a stretched resin film containing inorganic fine powder with a wall thickness of 90 to 300 microns, and above and below this intermediate layer, there are materials having a melting point lower than the melting point of the resin in the intermediate layer. An opaque piece of synthetic resin made by laminating thermoplastic resin films having a melting point is interposed between the front and back sides of the transparent bag made of synthetic resin, and is polymerized and welded to form the bottom or bottom of the transparent bag made of synthetic resin. An opaque part is formed on the top, and a barcode symbol printed on the front or back side of the synthetic resin transparent bag at the bottom or top of the synthetic resin transparent bag or on the synthetic resin opaque piece is printed on the front side and back side. To provide a packaging bag that is visible from one side.

(Function) In the opaque part, it is impossible to see through from either the front side or the back side, so if a barcode symbol is attached to the front side, characters, figures, etc. on the back side cannot be seen through. Since the characters, figures, etc. on the front side cannot be seen through when a barcode symbol is attached to the back side, misreading by the identification device can be prevented.

(Example) An example of the present invention will be described with reference to FIGS. 1 and 2.

High melting point (melting point 160℃ or higher) thermoplastic resin films such as polypropylene, polyethylene terephthalate, and polyamide, and low melting point (melting point
130℃ or less) At the longitudinal ends of the front piece 1 and the back piece 2, each made of a transparent laminated film with a thermoplastic resin film, there is a wall thickness of 90°C between the front piece 1 and the back piece 2. An opaque synthetic paper made of a stretched resin film containing fine inorganic powder of 300 microns is used as an intermediate layer, and thermoplastic resin films having a melting point lower than the melting point of the resin of this intermediate layer are laminated above and below this intermediate layer. An opaque synthetic resin piece 3 made of synthetic resin is interposed, and both edges of the overlap between the front piece 1 and the back piece 2 and the overlapped part between the front piece 1, the opaque synthetic resin piece 3, and the back piece 2 are synthesized. The packaging bag 4 is formed by polymerizing and welding the bottom end or the other top end of the transparent resin bag.

In this case, a barcode symbol 5 is printed on the longitudinal end of the surface piece 1, and the synthetic resin transparent piece 3 has an area larger than at least the area of the barcode symbol 5.

Therefore, in the barcode symbol 5 portion of the transparent bag body made of synthetic resin, the packaging bag 4 has an opaque portion 4 which is made invisible from one side of the front surface portion 4A and the back surface portion 4B due to the interposition of the synthetic resin opaque piece 3.
C is formed at a predetermined portion, and the barcode symbol 5 is made visible from the surface portion 4A side, and one end is closed, and the other end is an opening 6.

Since the packaging bag of the present invention is constructed as described above, after putting food or other items into the bag through the opening 6,
are welded together to make a bag filling.

In order to distinguish the product number, name, price, etc. of a product at a supermarket etc. using an identification device, when the barcode symbol 5 part is hung on the identification device, the barcode symbol 5 part is divided from the front side 4A to the back side 4B. Since the bar code symbol 5 cannot be seen through due to the opaque piece 3 made of synthetic resin, unnecessary lines and the like are not included in the bar code symbol 5, and malfunction of the identification device can be prevented.

In addition, in this example, a bar code is attached to the end of the surface piece 1.
Although the symbol 5 is printed on the back piece 2, the bar code symbol 5 may be printed on the back piece 2, or the bar code symbol 5 may be printed on the synthetic resin opaque piece 3, and the front piece 4A side, The barcode symbol 5 is made visible from one side of the back surface portion 4B, and cannot be seen from the other side.

Furthermore, an opaque part 4 is formed by completely fusing the front part 4A, the synthetic resin opaque piece 3, and the back part 4B.
C, and the hook hole 7 may be provided through the opaque portion 4C.

(Effects of the invention) The present invention can make the barcode symbol clear by interposing an opaque piece made of synthetic resin and ensure the operation of the identification device, thereby ensuring smooth distribution. The practical effects of this are great.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway slope view of the packaging bag of the present invention;
The figure is an explanatory diagram showing an example of the same manufacturing process. 1... Front piece, 2... Back piece, 3... Opaque synthetic resin piece, 4... Packaging bag, 4A... Front part, 4B... Back part, 4C... Opaque part, 5...
Barcode symbol.

Claims (1)

[Scope of utility model registration request] A synthetic paper made of a stretched resin film containing inorganic fine powder with a wall thickness of 90 to 300 microns is used as an intermediate layer, and thermoplastic resin films having a melting point lower than the melting point of the resin in this intermediate layer are laminated above and below this intermediate layer. A synthetic resin opaque piece made of
An opaque part is formed on the bottom or top of the synthetic resin transparent bag by polymerization welding, and the front or back surface of the synthetic resin transparent bag or the synthetic resin opaque piece at the bottom or top of the synthetic resin transparent bag. A packaging bag with a barcode symbol printed on it that can be seen from either the front side or the back side.