JP2004268925A - Food package and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To print characters such as a pull-date mechanically when making a bag without allowing character information such as the pull-date to disappear. <P>SOLUTION: A food package is made of an end rim of a film 11 unrolled from a roll 10. After the character information regarding the pull-date or the like is printed 13 on a part to be heat-sealed, the film 11 is circularly bent, and both ends of the film 11 are pulled together so that the character information regarding the pull-date or the like is inside. The parts pulled together are heat-sealed by heat-sealing bars 14 and 14a, then heat sealing is applied crosswise by lateral heat-sealing bars 15 and 15a, and the bag is made by cutting the bags one by one by cutters 16 and 16a. Thus, since the character information 5 regarding the pull-date or the like is located within a heat-sealed surface 2, the characters do not disappear. In addition, the printing 13 of the characters can be done in an automatic bag-making line, thereby saving labor. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a food package printed or printed with character information relating to a shelf life (or expiration date) and a method of manufacturing the package. More specifically, the character information such as the shelf life disappears, or ink is removed from another package. The present invention relates to a food package that does not adhere to the body or food, and a method for producing the package.
[0002]
[Prior art]
On the food package, the expiration date of the content food is displayed, for example, as "Expiration date 2003.11". The expiration date is displayed at the stage after the manufactured food is sealed in the package. In the case of a package or automatic packaging, it is not possible to print on a film before packaging in advance.
Therefore, conventionally, after the food is sealed, printing is performed on the surface of the package using a printing machine using an ink ribbon, and this display is usually performed manually.
[0003]
Therefore, there are the following disadvantages.
1. Since the ink is on the surface of the package, it may be rubbed against other articles to make it thinner or difficult to distinguish.
2. Characters disappear when wet with water.
3. Ink can stain clothing and adhere to other goods.
4. If you put the package in hot water and warm it at home, the ink will dissolve into the hot water.
5. Since each bag is printed, labor is required.
[0004]
[Problems to be solved by the invention]
The present invention has been proposed in view of the above point, and character information such as the expiration date does not disappear, and it is possible to print or print the character information such as the expiration date by a mechanical method at the time of bag making. It is an object to provide a food package that can be made and a method for producing the same.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is characterized in that a food package is formed by printing or printing character information relating to the expiration date in a heat seal portion of the package.
[0006]
Furthermore, in the invention according to claim 2, in the method for manufacturing a food package, after printing or printing the character information about the expiration date on the edge of the film that is unwound from the roll and is heat-sealed, The film is bent, and the character information on the expiration date is drawn inside so that both ends of the film are drawn together, and the drawn portion is heat-sealed to print the character information on the expiration date in the heat-sealed portion. It is characterized by printing.
[0007]
Further, according to a third aspect of the present invention, in the second aspect of the present invention, the package is sealed with a three-way seal.
[0008]
Furthermore, according to the invention described in claim 4, in the invention described in claim 2, the package is formed by pasting together with a palm.
[0009]
Further, according to a fifth aspect of the present invention, in the second aspect of the present invention, the package is formed by attaching an envelope to the bag.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
The package is a package of food for which indication of the expiration date or the like is obligatory. This package is intended for a package made of a plastic film.
Hereinafter, an embodiment of the package according to claim 1 will be described in detail with reference to FIGS. 1 to 3.
[0011]
In FIG. 1, reference numeral 1 denotes a package body filled with a seasoning liquid for a pot, and three-side seals 2, 3, and 4 are provided on a heat seal 2 portion of one side of the package body 1 in advance on a heat seal surface thereof. The character 5 of “expiration date 2003.11” is printed or printed.
FIG. 2 is a cross-sectional view taken along the line AA ′, and the character 5 of “expiration date 2003.11” is printed on the heat sealing surface 2, and this character can be seen from outside the film. The heat-sealing surface in FIG. 2 is in a state referred to as "gassing bonding", and the heat-sealing surface 2 in FIG. 3 is an embodiment of a package called "envelope bonding". It doesn't matter.
FIG. 4 shows an example of bag making of the package according to the present invention. After the film 11 is fed out from the roll 10 in a flat state, the expiration date is used along the edge of the film 11 by using the printing machine 12. The film 11 is formed into a cylindrical shape by performing character information printing 13 on the film 11 with the printing 13 inside and the both ends in a palm shape, and then heat-sealing vertically with heat seal bars 14 and 14a. Formed, and then heat-sealed in the horizontal direction by the horizontal heat-seal bars 15 and 15a, and then cut by the cutters 16 and 16a for each bag to obtain a product. In the figure, reference numeral 17 denotes a seasoning liquid filling nozzle.
[0012]
【The invention's effect】
As described above, the present invention has the following effects by printing or printing character information such as the expiration date inside the heat seal surface.
1. Since the characters such as the expiration date are heat-sealed surfaces and are located between the films, the characters such as the expiration date do not rub from outside or fall off with water.
2. Since the ink is not exposed on the surface of the package, other foods and clothes are not stained with the ink, and the letters do not disappear by being dissolved in boiling water.
3. Since the printing or printing of characters can be performed by mechanical means during bag making, the expiration date can be saved and the production cost can be reduced.
[Brief description of the drawings]
FIG. 1 is an explanatory view of a package according to the present invention.
FIG. 2 is a sectional view taken along line AA ′.
FIG. 3 is an explanatory view of an example in which the present invention is applied to an envelope-attached package.
FIG. 4 is an explanatory view of an example in which bag making is performed while printing or printing character information such as a shelf life in an automatic packaging machine.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Package 2, 3, 4 Three-sided seal 5 Character 10 Roll 11 Film 12 Printing machine 13 Printing 14, 14a Heat seal bar 15, 15a Horizontal heat seal bar 16, 16a Cutter 17 Filling nozzle

Claims (5)

A food package formed by printing or printing character information relating to the expiration date in a heat seal portion of the package. After printing or printing the character information related to the expiration date on the edge of the film unwound from the roll and being heat-sealed, the film is bent so that the character information relating to the expiration date comes inside. A method for producing a food package in which character information relating to the expiration date is printed or printed in the heat-sealed portion by drawing both ends of the film together and heat-sealing the drawn portion. The method for producing a food package according to claim 2, wherein the package is sealed with a three-way seal. The method for producing a food package according to claim 2, wherein the package is formed by pasting together. 3. The method for producing a food package according to claim 2, wherein the package is made by attaching an envelope.

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