JP3244856U - Butter storage bag - Google Patents

Abstract

[Issue] When storing butter at home, it is often stored in the refrigerator using the box it was purchased in or a commercially available butter case. Since I was having trouble with smell transfer and where to store it inside the refrigerator, I decided to create a butter storage container that prevents butter from deteriorating, makes it easy to check the remaining amount, and can be stored in the pocket of the door without getting in the way of storing other items. provide.
[Solution] A self-supporting bag is made of a multilayer film including a gas barrier layer and an adhesive layer, the bag is sealed around the bag except for one place that serves as the input opening, and the input opening is equipped with a sealable zipper. A flexible butter storage bag 1 is provided with a degassing valve for discharging the air inside after the zipper is closed.
[Selection diagram] Figure 1

Description

The present invention relates to a bag used for storing butter.

When storing rectangular parallelepiped butter at home, etc., it is often stored in the box it was purchased in, transferred to a commercially available butter case, or wrapped in food wrap. This method involves the trouble of taking out and rewrapping the butter before and after use, and when using a commercially available butter case, there are various types such as plastic, glass, metal, and wood. It comes in a hard case and is often placed on the shelf of the refrigerator, with some complaining that it ``takes up space and gets in the way'' and ``It's a pain to take it out of the box or case to check the remaining amount.'' There were many.
Furthermore, even when sealed butter cases with gaskets were used to prevent quality deterioration caused by oxygen in the air and odors from transferring into the refrigerator, there was still considerable quality deterioration.
Therefore, it has been desired to provide a butter storage container that is resistant to quality deterioration and odor transfer, is easy to check the remaining amount, and can be stored even when transformed into a pocket part of the door that does not interfere with the storage of other items. .

Utility Application No. 2010-000857 Utility Application No. 2022-002170

The challenges of this invention are that it is possible to store a rectangular parallelepiped of butter in the pocket of the refrigerator door in an upright position, and that the remaining amount can be checked at a glance without having to take out the butter, and that it can be kept away from air and light. To provide a butter storage bag that reduces quality deterioration such as discoloration and change in taste due to reduced contact.

This invention is a flexible, self-standing bag made of film that allows the contents to be checked.In order to reduce as much as possible the contact between the butter to be stored and oxygen in the air, the main film has an oxygen barrier property. The solution was to use a high-quality film, seal the opening with a zipper, and install a degassing valve to expel the air inside the bag.
Furthermore, by applying UV cut treatment to the film, UV transmission can also be reduced and a more satisfactory storage bag can be obtained.

The above-mentioned present invention can improve the convenience of storing butter in a refrigerator and reduce the quality deterioration of butter, compared to the case where butter is stored in a refrigerator using a box at the time of purchase or a commercially available butter case.
Regarding the convenience of storage in the refrigerator, since it is a free-standing bag made of flexible film, it can be easily deformed and can be stored in the narrow pocket of the refrigerator door. Helpful for effective use.
In order to reduce the quality deterioration of butter, we use a film with a high oxygen barrier property for the main body, a zipper to prevent air from entering, a degassing valve to expel air from inside the bag, and furthermore, we have added UV protection properties to the main body film. By reducing the amount of oxygen in the storage container of the present invention and reducing light transmission, it is possible to reduce discoloration, quality deterioration, and odor transfer of butter.

FIG. 1 is a schematic diagram of the butter storage bag of the present invention. FIG. 2 is a schematic cross-sectional view of the two-layer film of the present invention. FIG. 3 is a schematic diagram of the butter storage bag of FIG. 1 in a folded state. FIG. 4 is a schematic diagram of a butter storage bag that is a standing pouch bag, which is another example of the present invention from FIG. 1.

Hereinafter, specific embodiments of the aforementioned butter storage bag will be described with further reference to the accompanying drawings.
In FIG. 1, 1 is a bottom gusset type self-supporting butter storage bag with a polygonal bottom, 2 is a main body film, 3 is an inlet, 4 is a zipper, and 5 is a degassing valve.
In FIG. 2, 6 is an oxygen barrier film, and 7 is an adhesive layer.
In FIG. 3, 1 is a bottom gusset type self-standing butter storage bag with a polygonal bottom, 2 is a main body film, 3 is an inlet, 4 is a zipper, and 5 is a degassing valve.
In FIG. 4, 1 is a self-supporting bag called a standing pouch with a curved bottom surface, 2 is a main film, 3 is an inlet, 4 is a zipper, and 5 is a degassing valve.

Since the main body film 2 of the butter storage bag 1 needs to have both sufficient oxygen barrier properties and thermal adhesive properties, it is desirable to have a two-layer structure with at least an oxygen barrier film 6 and an adhesive layer 7. As the barrier film 6, polyester films and nylon films are preferred from the viewpoints of oxygen barrier performance, flexibility, and ease of availability, but films made from resins with high oxygen barrier properties such as EVOH and vinylon can also be used, and adhesive The layer 7 is preferably made of polyethylene resin (linear low-density polyethylene = LLDPE) or ethylene vinyl acetate resin (EVA), which has good thermal adhesion properties.
The input port 3 can be sealed with a zipper 4 to prevent air from entering, and when the zipper 4 is closed, the air trapped in the butter storage bag 1 is removed by a degassing valve 5. By venting to the outside, contact between the butter and oxygen can be minimized. As the chuck 4, a resin chuck, a resin double chuck, a resin slider chuck, etc. can be used.
In addition, in order to reduce the quality deterioration of butter due to light, it is effective to print UV cut treatment on the main body film 2 to reduce the amount of light transmitted. It may also be a multi-layer film arranged on.
In addition, the shape of the butter storage bag 1 is preferably a rectangular parallelepiped type that is easy to put in and take out butter, or a freestanding type bag that can be easily stored standing up in the pocket of the refrigerator door. Preferred are bags with a wide bottom gusset, bags with a tortoise shell shape on the bottom, and standing pouches.

A two-layer film consisting of a 12 μm thick polyester film laminated with a 50 μm LLDPE adhesive layer is used as the main film 2, and the edges other than the slot 3 for putting in and taking out butter are thermally bonded using an ultrasonic sealing machine to form a bag. A chuck 4 was provided on the top of the bag, and a degassing valve 5 was provided for discharging the air inside the bag. A butter storage bag 1 with a bottom gusset type and an input port 3 of 17 cm and a depth of 22 cm was prepared.

As an evaluation test, after putting one 450g stick of prismatic butter purchased at a mass retailer into the butter storage bag 1 of the example, the zipper 4 in the input port 3 was closed, and the air inside the bag was removed using the degassing valve 5. After removing the air, the butter was stored in the pocket of the refrigerator door and the deterioration status of the butter was observed.
For comparison, butter of the same brand from the same manufacturer was stored in the same refrigerator wrapped in a butter case and food wrap.

Thirty days after the start of the evaluation test, we compared the color, aroma, etc. of the butter stored in the example, the butter case, and food wrap with newly purchased butter of the same brand from the same manufacturer, and evaluated the results as shown in Table 1. Ta.
Regarding the color, the color of the surface of the butter was visually compared with that of a newly purchased product.
Regarding the scent, I smelled the butter scent directly with my nose and compared it with a newly purchased product.
As for the taste, I took a small amount of butter with a spoon and put it on my tongue to compare it with the new product.

As shown in Table 1, compared to storing butter wrapped in a butter case or food wrap in the refrigerator, storing butter using the butter storage bag 1 preserves the original color, aroma, and flavor of butter. It was confirmed that the butter could be stored without much loss and with little deterioration in quality.

The butter storage bag 1 of the present invention is made of a flexible film, so it can not only be stored upright in the pocket of a refrigerator, but also allows you to visually check the remaining amount of butter without taking it out. Moreover, even when stored for a long time in a refrigerator, there is little quality deterioration such as discoloration or odor transfer, and it is possible to provide butter that has a light yellow color similar to that of original butter and a rich flavor.

1 Butter storage bag 2 Main film 3 Inlet 4 Chuck 5 Degassing valve 6 Oxygen barrier film 7 Adhesive layer

Claims (6)

It is a self-supporting type bag made of at least two or more multilayer films including a gas barrier layer and an adhesive layer.The bag is sealed around the bag except for one place that serves as the input opening, and the input opening is equipped with a zipper. Furthermore, this butter storage bag is equipped with a degassing valve. The butter storage bag according to claim 1, wherein the gas barrier layer is a polyester film. The butter storage bag according to claim 1, wherein the gas barrier layer is a nylon film. The butter storage bag according to any one of claims 1 to 3, wherein at least a portion of the multilayer film is a film that has been subjected to UV cut treatment. 5. The butter storage bag according to claim 4, wherein the self-standing type bag is of a bottom gusset type. 5. The butter storage bag according to claim 4, wherein the self-standing type bag is a standing pouch.