JP3069242U - Rolled packaging sheet - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To improve a rice ball packaging sheet so that it is required in a packaged state and exhibits sufficient sealing properties, which can contribute to a reduction in bag making cost. A long band-shaped heat-sealing base film (1-1) is folded inward on both sides by double bending, and is within a width (d) range of a folded portion (11) on one side. A tear cut (12) is formed at predetermined intervals in the longitudinal (L) direction of the base film, and the base films that are folded inside the vicinity of the tear cut formation site and on the other side or both sides of the film are connected to each other. Adhere releasably.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an improved scroll-shaped wrapping sheet for packing food such as onigiri.

[0002]

[Prior art]

 2. Description of the Related Art Conventionally, a packaging bag as shown in FIGS. 6A and 6B has been used for packaging rice balls and the like. That is, as shown in FIG. 6 (A), the three sides of the packaging bag except for the lower bases 51a, 51a, which are substantially trapezoidal in plan view, are heat-sealed. A packaging bag 53 having an opening 52 at the bottoms 51a, 51a is formed. After the rice balls 5 are inserted through the opening 52 of the packaging bag 53 thus formed and the opening 52 is folded, as shown in FIG. The rice balls 5 are sealed in the packaging bag 53 by sealing the bottom sides 51a, 51a with a tape 54 or the like.

[0003]

[Problems to be solved by the invention]

 However, in the above-described conventional onigiri packaging, two sheets must be formed in a bag shape in advance, so that the manufacturing process becomes longer, and the onigiri is enclosed in the formed packaging bag by a machine. Since automation is difficult, labor is required, and there is a problem that bag making costs are increased. In addition, if food other than rice balls is to be enclosed in the packaging bag, the size of the packaging bag must be adjusted according to the food, so that the packaging bag loses versatility. Furthermore, since only a part of the seal is stopped with a tape or the like after enclosing the rice ball in the packaging bag, there is a problem that the seal is insufficient and the peeling or dust easily enters.

The present invention has been made in order to solve the above-mentioned problem, and it is possible to reduce the cost of bag making, and it is easy to automate by machine when enclosing an object to be packaged such as an onigiri. Another object of the present invention is to provide a packaging sheet having necessary and sufficient sealing properties.

[0005]

[Means for Solving the Problems]

 The sheet of the present invention is made of a long strip-shaped base film having heat sealing properties, and both sides of the base film are folded inward by double bending, and within the width range of the folded part on one side. In the above, a tear cut is formed at a predetermined interval in the longitudinal direction of the base film, and the folded base films are attached to be separated from each other inside the vicinity of the site of the tear cut. A roll-shaped wrapping sheet characterized by the following. The film sticking part is not limited to the tear cut forming site side, and the folded films may be stuck on both sides of the base film.

[0006]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. FIG. 1 is a perspective view showing a scroll-shaped packaging sheet of the present invention, FIG. 2 is a plan view showing a part of the present invention, FIG. 3 is a sectional view taken along line XX of FIG. 1, and FIG. FIG.

[0007] As shown in the figure, the roll-shaped wrapping sheet of the present invention is composed of a long strip-shaped base film 1-1 having a heat seal property, and both sides of the base film 1-1 are formed by double bending. A tear cut 12 is formed at a predetermined interval in the length L direction of the base film 1-1 within the range of the width d of the folded portion 11 on one side thereof, and the tear cut 12 is formed. Inside the vicinity of the formation site of No. 12, the folded base films 1-1 and 1-1 are adhered so as to be able to come and go.

[0008] Then, using the long strip-shaped base film 1-1 having an orientation in the width D direction, the film can be torn in the width D direction starting from the tear cut 12, or the tear cut 12 can be The base film 1-1 can be torn in the width D direction by attaching or fusing the cutting tape 121 in the width D direction as a starting point.

According to the present invention having the above-described structure, it is not necessary to manually form the packaging sheet in a bag shape in advance, and the bag-making cost is reduced because automation by a machine is facilitated. The set interval of the tear cuts 12 formed in the base film 1-1 is adjusted without the need to add and subtract one by one according to the size of the food such as the rice ball A to be packaged. It can correspond to the size of the article to be packaged. Since the foldable base films 1-1 and 1-1 are sealed so as to be able to contact and separate from each other inside the vicinity of the location where the tear cut 12 is formed, a period until the packaging bag obtained from the present invention is opened is opened. In addition, food such as rice ball A is not exposed to the outside air, and is sanitary without being contaminated by dust, germs and the like.

The packaging bag obtained by the present invention can be easily opened because it is easily torn in the width D direction starting from the tear cut 12 formed in the base film 1-1. Extremely convenient.

[0011]

【Example】

 The base film 1-1 used in the present invention is a long strip-shaped heat-sealable plastic film usually used for food packaging, and this film may be a non-oriented film having no orientation. A film to which orientation is imparted in the width D direction by uniaxial stretching is preferably used.

As shown in a perspective view in FIG. 1 and a plan view in FIG. 2, both sides of the base film 1-1 are double-folded and folded inwardly, and a folded portion 11 on one side thereof is formed. Within the range of the folding width d, a U-shaped or horseshoe-shaped tear cut 12 is formed inward at a predetermined interval in the longitudinal direction L of the upper surface of the base film 1-1.

In the case of using the base film 1-1 having no orientation in the width D direction, the cutting film 121 is attached or fused in the width D direction starting from the tear cut 12 to form the base film. 1-1 is torn in the width D direction. When the base film 1-1 having an orientation in the width D direction is used, it is not necessary to attach the cutting tape 121.

Further, the base films 1-1 and 1-1 which are folded inside near the portion where the tear cut 12 is formed, that is, as shown in a sectional view of FIG. A seal portion 13 is formed between the upper film and the folded film, which are folded in the vicinity of the second fold 112 between the second folds 112, and which can be separated from each other. As described above, by forming the detachable seal portion 13 inside the vicinity of the portion where the tear cut 12 is formed, it is possible to prevent dust and various bacteria from entering the tear cut 12 after packaging. Further, although the seal portion 13 is located in the tearing direction, the seal portion 13 can be brought into contact with and separated from the seal portion 13 so that the seal portion 13 does not hinder the tearing at the time of opening.

According to the present invention, as described above, both sides of the base film 1-1 are folded in a double bend, a tear cut 12 is formed, and a detachable seal portion 13 is provided inside the tear cut 12 near the tear cut 12. The formed long strip-shaped base film 1-1 is wound around a shaft core 1-2 to form a roll. Accordingly, both sides of the long strip-shaped base film 1-1 are symmetrically folded inward, and the left and right folded portions 11 in the width D direction have the same thickness, and are wound around the shaft core 1-2. The base film 1-1 can be evenly and smoothly wound without causing troubles such as unwinding and wrinkling, and the unwinding work when the film is put on an automatic bag making machine can be smoothly advanced. be able to.

When packaging food such as onigiri A using the present invention, individual packaging can be performed by cutting the middle between the tears 12 in the width D direction in accordance with the size of onigiri A or the like. Since the sheet 1 is obtained, the packaging sheet 1 is wrapped with rice balls A and the like, and the periphery thereof is heat-sealed to obtain a package as shown in a plan view in FIG.

By using the product of the present invention, it is not necessary to form the packaging sheet in advance in a bag shape by taking time and effort. In addition, the long strip-shaped scroll-shaped packaging sheet 1 is opened and the predetermined lengthwise L direction is set. By cutting and using the tear cuts 12 formed at an interval and cutting them at desired positions on the left and right, there is flexibility such as adaptation to the size of food to be packaged, so that bag making cost is low. Becomes

Further, since the base films 1-1 and 1-1 which are folded inside the vicinity of the portion where the tear cut 12 is formed are sealed with each other, the rice balls A are not opened until the rice balls A and the like are taken out. Can be kept sanitary without being contaminated by outside air, dust, and various germs.

Further, the cutting tape 121 may be used in the width D direction from the tear cut 12 regardless of whether the base film 1-1 having the orientation in the width D direction is used or the orientation of the base film 1-1 is used. If it is attached or fused, it can be easily torn in the width D direction starting from the tear cut 12 and opened.

In the above embodiment, only the side of the film where the tear cut is formed is adhered. However, as shown in FIG. 5, both ends or one end of the folded film is attached to both sides of the base film. You may stick it. In this way, when handling the film, it is possible to prevent the position of the overlapping portion of the film from being shifted, and to maintain the film in the folded state, thereby making it easier to handle.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a scroll-shaped packaging sheet of the present invention.

FIG. 2 is a plan view showing a part of the present invention.

FIG. 3 is a partially omitted cross-sectional view taken along a line XX of FIG. 1;

FIG. 4 is a plan view showing an embodiment of the present invention.

FIG. 5 is a plan view showing another embodiment of the present invention.

FIG. 6A is a perspective view showing a conventional example. (B) is a perspective view showing an embodiment of (A).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Roll-shaped packaging sheet 1-1 Base film 1-2 Core 11 Fold part 111 First fold 112 Second fold 12 Tearing cut 121 Cutting tape 13 Seal part A Onigiri L Film longitudinal direction D Film width direction d Fold width

Claims (4)

[Utility model registration claims] 1. A long-strip base film having heat sealing properties, wherein both sides of the base film are folded inwardly by double bending, and within a width range of a folded portion on one side. A tear cut is formed at a predetermined interval in the longitudinal direction of the base film, and the folded base films are adhered to each other so as to be able to contact and separate from each other inside the vicinity of the site where the tear cut is formed. Rolled packaging sheet. 2. The roll-shaped packaging sheet according to claim 1, wherein the folded films are adhered to each other on both sides of the base film. 3. The method according to claim 1, wherein the long strip-shaped base film has an orientation in the width direction thereof, and can be torn in the width direction starting from the tear cut. Rolled packaging sheet. 4. The roll of claim 1, wherein a cutting tape is attached or fused in the width direction of the base film from the starting point of the tear, so that the base film can be torn in the width direction. Packaging sheet.