JP2019119486A - Food packaging bag with zipper - Google Patents

Abstract

To provide a package making it possible to timely print an expiration date or the like of foods on an inner face of a packaging material and preventing the printing from being brought into contact with contents such as foods.SOLUTION: In a food packaging bag mounted in an unsealing port 2 with a zipper 3, information on an expiration date or the like of foods is printed 8 in advance on an inner surface side of a bag body 1 with an inkjet ink; a base tape 4 of the zipper 3 is superposed on a surface of a printed 8 part and subject to heat-sealing to thereby constitute it so as to prevent the printed 8 part from being directly exposed and brought into contact with foods in an inside to damage a quality of the foods, and troublesomeness on displaying an expiration date is eliminated.SELECTED DRAWING: Figure 3

Description

The present invention relates to a zippered food packaging bag equipped with a so-called zipper which can be sealed and reopened after the opening has been opened.

In the case of food and other packaging bags, producers are obliged to print in advance food labeling standards regarding the expiration date and the like of the food packaged inside.

Therefore, producers indicate the expiration date etc. on the packaging bag according to the shipping date of the food.

As this notation method, a method of printing together at the time of design printing of a packaging bag is generally used, but for this purpose, it is necessary for the shipping date to be accurately known in advance in order to eliminate the loss.

However, since the shipping date is not necessarily constant in relation to the sale of goods etc., it is impossible to predict shipping in advance.

Therefore, it is rare to print the date and time when printing the packaging bag, and later printing is performed according to the shipping date or manufacturing time.

However, if such a printing method is performed, depending on the shipping date, a date will be broken between the printing date and the expiration date printed in advance, which is likely to cause an accident.

Therefore, in the case of a zippered packaging bag, a method is employed in which printing is performed on the zipper tape side, not on the bag body.

For example, in JP-A-8-91391 (Patent Document 1), a packaging film having a heat seal layer is fed out and traveled, and the packaging film is heat sealed and packaged by respective heat sealing in the vertical and horizontal directions. In producing the bag, an ink layer is formed on the heat seal layer of the packaging film being fed, on which the heat seal is applied, and an ink layer for displaying required characters, symbols and the like is formed. The manufacturing method is introduced.

However, in the case of this example, since the printing is performed on the side of the packaging film, it is necessary to adjust the consumption term, etc. If this term is overlooked, it is necessary to discard the packaging film, which is wasteful. .

In JP 2011-157117 A (Patent Document 2), a printed image is provided on the inner surface of the packaging material, and the printed image is a food while taking advantage of the heat sealing of the packaging material with the printed image interposed therebetween. Even when they come in contact with the contents of the package, etc., there is introduced a package which does not impair its quality.

However, even in this example, the same problem as in Patent Document 1 occurs.

JP-A-8-91391 JP 2011-157117

This invention is provided in view of such a point, Comprising: The expiration date etc. of food can be timely printed on the inner surface of a packaging material, and the printing does not contact contents, such as food, etc. Intended to provide the body.

In order to achieve the above object, the invention according to claim 1 is a food packaging bag with a zipper tape, in the packaging bag having a zipper tape attached in the opening, the expiration date of the food sealed in the bag. It is characterized in that the zipper tape is printed on the heat sealing site in advance and the zipper tape is heat sealed so as to cover the printed surface.

The invention according to claim 2 is characterized in that, in the bag for food packaging with a zipper tape according to claim 1, the printing is performed using an ink jet printer.

The invention according to claim 3 is characterized in that, in the food packaging bag with zipper tape according to claim 1 or 2, the zipper tape is heat-sealed at the base tape portion thereof. .

In the case of the above-mentioned food packaging bag, since the printed portion is covered with the zipper tape, not only the printing ink does not directly touch the food, but also the cost is advantageous if the shipping date and the expiration date disagree. It is only necessary to remake the main film side, and there is no waste of discarding and recreating expensive zippers.

In addition, since the present invention can appropriately perform printing by the inkjet method, it does not take much time including the change of characters.

It is a front view which shows the opening opening part of the three-way seal bag which implemented this invention. It is an internal view of the bag which shows the example of attachment of a zipper. It is sectional drawing which shows the zipper and the printing part of expiration date.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

FIG. 1 shows the opening opening portion of the bag main body, and reference numeral 1 is a bag main body, which is made by the so-called three-way sealing method, and the opening opening 2 of the bag main body 1 is shown in FIG. So the zipper 3 is attached.

The zipper 3 is formed by integrally projecting a male stripe 6 and a female stripe 7 on the surface of the base tapes 4 and 5, respectively. The zipper 3 extrudes the base tapes 4 and 5 from the die at the time of manufacture. ) Are simultaneously extruded on the base tapes 4 and 5 and then solidified by passing through cold water.

And this zipper 3 is heat-sealed on the surface (the surface) of the printing part 8 of the expiration date printed on the opening 2 of the bag body 1 by reverse, so the inkjet ink for printing is completely completed by the base tape 4 Is covered by

In addition, you may heat-seal so that the printing | printed_character 8 part may be covered with the base tape of male stripe 6 or female stripe 7 by any side of 4 or 5. FIG.

As described above, the print 8 portion of the bag main body 1 is completely covered with the base tape 4 or 5 of the zipper 3 so that the print 8 portion does not directly contact food etc. There is no fear that the print 8 will be blurred as it is rubbed with it.

In addition, in principle, the print 8 portion of the zipper 3 does not overlap with the male stripe 6 or the female stripe 7 and the width of the base tape 4 or 5 can be freely set according to the size of the print 8 portion. .

1 Bag Body 2 Opening Opening 3 Zipper 4 Base Tape 5 Base Tape 6 Male Strip 7 Female Strip 8 Printed

Claims (3)

In the packaging bag which has a zipper tape attached in the opening, the expiration date of the food sealed in the bag is previously printed on the heat sealing site of the zipper tape and the zipper tape is overlapped so as to cover the printed surface. Heat sealed food packaging bag with zipper tape. The bag for food packaging with a zipper tape according to claim 1, wherein the printing is performed using an ink jet printer. The bag for food packaging with a zipper tape according to claim 1 or 2, wherein the zipper tape is heat-sealed at a base tape portion thereof.

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