JP4467871B2 - How to use refill bags - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is a method of using a refill bag that can display the expiration date by peeling the release layer displaying the expiration date from the outer surface of the bag with an adhesive tape or the like and sticking it to a refill bottle or the like. About.
[0002]
[Prior art]
Conventionally, as a method of displaying the expiration date on a refilling bottle or the like used by refilling the contents, a pressure-sensitive adhesive is applied to the entire back surface as described in Utility Model Registration No. 3069746 and can be peeled off. A label is printed on the surface of the upper paper laminated on the release paper, and a small label portion is provided on the upper paper to display the expiration date, etc. by cutting, and the release paper on the back of the small label portion A pressure-sensitive adhesive label having a structure in which a cut is formed to cover a small label portion is known, but in the case of this pressure-sensitive adhesive label, since the structure of the pressure-sensitive adhesive label is complicated, the pressure-sensitive adhesive label is expensive and the pressure-sensitive adhesive label There is a drawback in that a process for sticking to a container for packaging food or the like is required.
[0003]
In addition, in a refill bag for packaging instant coffee, etc., the expiration date is printed at a predetermined position where it can be cut off, and the consumer purchases the product and puts the contents such as instant coffee into a bottle, etc. When refilling, it is known to display the expiration date etc. of the packaging bag, etc., by cutting off the part where the expiration date etc. are printed and pasting it on the refill bottle with adhesive tape etc. There is a drawback in that it takes time and effort to cut off the portion and stick it with an adhesive tape or the like.
[0004]
[Problems to be solved by the invention]
The purpose of the present invention is to enable the display of the expiration date etc. by peeling the peeled portion formed on the surface with the expiration date printed on the surface with an adhesive tape or the like and sticking it on a refill bottle or the like. Is to provide a refillable bag.
[0005]
[Means for Solving the Problems]
Release layer at a predetermined position of the outer surface of the bag for accommodating foods made of plastic laminate having a heat-adhesive resin layer is at least biaxially oriented film layer and the inner surface layer is formed, shelf of the food outer surface of the release layer time limit has been printed, the is brought into contact with the adhesive surface of the adhesive tape peeling layer, refilling the release layer and the shelf-life limit of printing by peeling the adhesive tape was transferable to the adhesive tape side A method of using the bag, wherein the adhesive surface of the adhesive tape is brought into contact with the outer surface of the release layer, and the release layer and the expiration date are transferred to the adhesive tape side by peeling the adhesive tape. The adhesive layer of the pressure-sensitive adhesive tape is brought into contact with the outer surface of a refill bottle, etc. , and the expiration date is displayed. External Were detached, by adhering to the surface of the bottle such that refilling the contents which are packaged in bags refill, it is possible to easily view the expiration date on the refill bottle or the like. In the method for using the refill bag, the release layer is white ink containing 20 to 40% by weight of a resin and 20 to 30% by weight of a white pigment based on the resin.
[0006]
In the above method of using the refill bag, the release layer is formed on the outer surface of the bag via the release layer, so that the taste of the bag reaches the end of the consumer regardless of the material of the bag surface. The release layer on which the expiration date is displayed does not fall off, and when the contents are refilled into a bottle or the like, the release layer can be easily released from the release layer surface with an adhesive tape or the like.
[0007]
In the above method for using the refill bag, the expiration date can be efficiently displayed on the release layer surface in the step of filling the bag with the content by adopting a configuration in which the expiration date is printed by an inkjet printer. it can.
[0008]
In the above method of using the refill bag , when the release layer is peeled off using an adhesive tape or the like, the release layer is chipped or cracked when the release layer has a thickness of 2 to 6 μm. It can be exfoliated into a film without entering it.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view showing a first embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view taken along line II of FIG. 1, FIG. 3 is a plan view showing a second embodiment of the present invention, and FIG. -II is an enlarged cross-sectional view, 2 is a side edge heat bonding portion, 3, 3 'is a bottom heat bonding portion, 4 is a V-shaped folding portion, 5 is a release layer, 6 is a release layer, 7 is a shelf life, 8 represents a lot number and 9 represents a plastic laminate.
[0010]
The first embodiment of the present invention is as shown in FIG. 1 and FIG. 2, which is composed of a plastic laminate 9, and has four side end thermal bonding portions 2 in a state where V-shaped folding portions 4 are formed on both side ends. Formed in a cylindrical shape, the bottom portion was sealed by the bottom thermal bonding portion 3, and the bottom thermal bonding portion 3 ′ was formed from the upper end of the bottom thermal bonding portion 3 so as to cross the V-shaped folding portion 4 obliquely outward. A release layer 5 that can be peeled off with an adhesive tape or the like is formed at the center of the outer surface of either the front or back side of the square-bottom gusset bag, and the shelf life 7, lot number using an inkjet printer on the outer surface of the release layer 5 8 etc. are displayed. The peel-off layer 5 formed on the surface of the bag and displaying the expiration date 7, lot number 8, etc. is easily peeled off with an adhesive tape or the like, and is stuck on the outer surface of a refill bottle or the like to display the expiration date. Is something that can be done.
[0011]
The second embodiment of the present invention is as shown in FIG. 3 and FIG. 4, and the second embodiment is located at the center of the outer surface of either the front or back of the square bottom gusset bag as compared with the first embodiment. The configuration is basically the same except that the release layer 5 is formed via the release layer 6 except that the release layer 5 is formed. The release layer 6 has a slightly larger area than the release layer 5 and is formed to protrude around the release layer 5. In the second embodiment, the release layer 5 is peeled off at the interface with the release layer 6, so that it is easy to use an adhesive tape or the like regardless of the type of plastic forming the surface of the plastic laminate 9 constituting the bag. The release layer 5 can be peeled from the surface of the release layer 6. Also in the second embodiment, the peeling layer 5 on which the expiration date is formed is peeled off with an adhesive tape or the like, and is pasted on the outer surface of a refill bottle or the like to display the expiration date. be able to.
[0012]
The shape of the bag in the first and second embodiments is not particularly limited and may be arbitrary, and may be a square-bottom gusset bag, a self-standing bag with the bottom folded into a V shape, a three-side sealed bag, a pillow type bag, or the like. it can. The release layer displaying the expiration date is preferably formed at the center of either the front or back of the bag so that it can be easily peeled off with an adhesive tape or the like. Only the expiration date may be displayed on the release layer, or a lot number, a factory symbol, or the like may be printed.
[0013]
The release layer 5 in the first embodiment or the release layer 6 and the release layer 5 in the second embodiment are formed on the outer surface of the surface layer constituting the plastic laminate 9 by printing such as gravure printing. The thickness of the release layer 5 is preferably 2 to 6 μm. If the release layer 5 is thin, when it is peeled off with an adhesive tape or the like, the release layer 5 is difficult to peel cleanly from the surface layer of the bag or the release layer 6 surface. In order to form the release layer 5 to a thickness of 2 to 6 μm, printing is performed once on a gravure printing plate having a depth of 30 to 50 μm using an ink containing 20 to 40% by weight of a resin forming the release layer 5. Or it can be formed by printing twice. As the ink for forming the release layer 5, a white ink containing 20 to 40% by weight of a resin and 20 to 30% by weight of a white pigment based on the resin is used. The release layer 6 is printed so that a uniform coating film having a thickness of 1 to 3 μm can be formed.
[0014]
In the case of the structure in which the release layer is directly formed on the outer surface of the plastic laminate constituting the bag as in the first embodiment, the release layer is mainly composed of a cellulose-based resin or the like having excellent peelability from the outer surface of the plastic laminate. It is preferably formed by printing with ink as a component, and in the case of a structure in which a release layer is formed on the outer surface of the plastic laminate constituting the bag via a release layer as in the second embodiment, Since the resin for forming the mold layer and the resin for forming the release layer must be incompatible, the release layer is formed using an ink made of a polyamide-based resin, and the release layer is made of vinyl chloride-acetic acid. It is preferably formed using an ink made of a vinyl copolymer or the like.
[0015]
As the structure of the plastic laminate, the surface layer is made of a biaxially stretched film such as a biaxially stretched polyethylene terephthalate, a biaxially stretched polypropylene, or a biaxially stretched nylon, and the inner layer is a low density polyethylene, a linear low density polyethylene, There is no particular limitation as long as it is composed of a heat-adhesive resin layer such as medium density polyethylene, but another biaxially-stretched film, metal or metal oxide vapor-deposited biaxially stretched between the biaxially-stretched film layer and the heat-adhesive resin layer. A structure in which a plastic film, a gas barrier film such as an ethylene-vinyl alcohol copolymer (EVOH), an aluminum foil or the like is laminated is preferable.
[0016]
Examples of the plastic laminate constituting the refill bag include biaxially stretched polyethylene terephthalate (PET) / printing / extruded polyethylene (EC) / aluminum foil (AL) / extruded polyethylene (EC) / linear low density polyethylene (LLDPE). ), PET / printing / dry lamination (DL) / AL / PET / DL / LLDPE, PET / printing / EC / unstretched polypropylene, and the like.
[0017]
【The invention's effect】
A refill bag having a configuration in which a release layer that can be peeled off by an adhesive tape or the like is formed directly or through a release layer at a predetermined position on the outer surface of the bag, and the expiration date is displayed on the outer surface of the release layer by an ink jet printer. By peeling the release layer displaying the expiration date from the outer surface of the bag with adhesive tape, etc., and pasting the contents stored in the bag as it is on the surface of a bottle, etc., a refill bottle, etc. It is very convenient to know the expiration date because it is easy to display the expiration date, especially when you need to adhere to the expiration date of instant coffee, regular coffee, powdered milk, instant cocoa, powdered milk cocoa, tea, etc. It can be effectively used as a refill bag for certain foods.
[Brief description of the drawings]
FIG. 1 is a plan view showing a first embodiment of the present invention.
FIG. 2 is an enlarged cross-sectional view taken along the line II in FIG.
FIG. 3 is a plan view showing a second embodiment of the present invention.
4 is an enlarged sectional view taken along line II-II in FIG.
[Explanation of symbols]
2 Side end heat bonding part 3, 3 'Bottom heat bonding part 4 V-shaped folding part 5 Peeling layer 6 Release layer 7 Expiration date 8 Lot number 9 Plastic laminate

Claims (5)

Release layer at a predetermined position of the outer surface of the bag for accommodating foods made of plastic laminate having a heat-adhesive resin layer is at least biaxially oriented film layer and the inner surface layer is formed, shelf of the food outer surface of the release layer time limit has been printed, the is brought into contact with the adhesive surface of the adhesive tape peeling layer, refilling the release layer and the shelf-life limit of printing by peeling the adhesive tape was transferable to the adhesive tape side A method of using the bag, wherein the adhesive surface of the adhesive tape is brought into contact with the outer surface of the release layer, and the release layer and the expiration date are transferred to the adhesive tape side by peeling the adhesive tape. The method of using the refill bag , wherein the sticky surface of the pressure-sensitive adhesive tape is brought into contact with the outer surface of a refill bottle or the like, and the expiration date is displayed . The method for using a refill bag according to claim 1, wherein the release layer is a white ink containing 20 to 40% by weight of a resin and 20 to 30% by weight of a white pigment based on the resin . The method for using a refill bag according to claim 1 or 2, wherein the release layer is formed on the outer surface of the bag via a release layer. The method for using a refill bag according to any one of claims 1 to 3, wherein the expiration date is printed by an ink jet printer. The method for using a refill bag according to any one of claims 1 to 4, wherein the release layer has a thickness of 2 to 6 µm.

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