JP2006008162A - Packaging bag for food such as sandwich - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging bag for food such as sandwiches with good unsealability capable of easily and surely taking out the food stored inside. <P>SOLUTION: A front sheet 1 and a rear sheet 2 are laterally heat-sealed by an upper seal 8 below an upper side 3. A tear-open sheet S with its stretching direction extending vertically is overlaid on the internal surface of the rear sheet 2 and joined to the rear sheet 2 by a plurality of heat-sealing lines HS extending vertically with lateral intervals. In addition, a cut 7 reaching the rear sheet 2 to tear the rear sheet 2 together with the tear-open sheet S is formed on the sheet S above the seal 8. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a food packaging bag which is packaged so that foods having a triangular shape (many right triangles), for example, sandwiches, cooking breads, castellas, confectionery breads and the like can be easily taken out.

  A food packaging bag such as a sandwich is composed of a front sheet 1 and a back sheet 2 having a substantially trapezoidal shape in plan view, as shown in FIG. 5, for example, and the upper side 3 and the oblique side 4 are sealed by overlapping them. The lower side 5 is opened so that food (not shown) can be stored therein, and an opening cut tape 6 is attached to the inside of the back sheet 2. Since the back sheet 2 is cut 7 in a semicircular arc shape or the like so as to surround the upper end of the cut tape 6, the lower part 5 is sealed by the upper seal 8, and when the lower side part 5 is sealed, The food storage unit is held in a sealed state (see, for example, Patent Documents 1 to 3).

  The food packaging bag configured as described above is carried into a supermarket, a convenience store, or the like with food stored therein and the lower side 5 sealed, and displayed at a store. Then, after being purchased by the consumer, when eating the food, the upper side 3 is held with one hand, and the upper end of the cut tape 6 that is cut 7 with the other hand is pulled downward. Thus, the back sheet 2 can be opened in a state divided into left and right with the cut tape 6 as a boundary, and the food can be taken out.

Japanese Utility Model Publication No. 7-4349 Registered Utility Model No. 3072028 JP 2003-160142 A

  However, in the food packaging bag shown in the above-described conventional example, the width of the portion to be torn off from the back sheet 2 when opened (substantially the same as the width of the cut tape 6) is relatively narrow. The part remains as it is. Therefore, when the food is taken out, the left and right back sheets 2 remain in the way and cannot be taken out smoothly. Further, the cut tape 6 is not necessarily pulled straight downward, and may be pulled obliquely downward depending on the case. In such a case, the back sheet 2 is also torn in the diagonal direction. For this reason, it may be difficult to take out the food, or the food may be deformed.

  On the other hand, the portion sandwiched between the upper side portion 3 and the upper seal 8 is referred to as a head portion 9, which is the most noticeable portion, and prints a product name, unique information related to other products, or the like. be able to. Therefore, it is desirable that the head portion 9 has sufficient shape retaining rigidity and is always kept in an upright state. Of course, this is also preferable in terms of appearance. However, the head portion 9 of the conventional food packaging bag does not have sufficient shape retaining rigidity, and may be tilted or tilted forward or backward in the display state.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a food packaging bag such as a sandwich with good openability so that the food stored inside can be easily and reliably removed. Another object of the present invention is to provide a sufficient shape retaining rigidity to the head portion of such a food packaging bag such as a sandwich.

(1) A food packaging bag such as a sandwich of the present invention is such that the front sheet 1 and the back sheet 2 are overlapped, and the upper side 3 and both side parts 4 and 4 of both sheets 1 and 2 are sealed to form the lower side part 5. In a food packaging bag such as a sandwich that opens and stores the food from the opened lower side part 5 and then the lower side part 5 is sealed,
The front sheet 1 and the back sheet 2 are heat-sealed in the left-right direction below the upper side 3 by the upper seal 8, and the breaking sheet S with the extending direction oriented in the up-down direction is an inner surface of the back sheet 2. The back sheet 2 is joined to the back sheet 2 by a plurality of heat seals HS which are overlapped with each other and extend in the up-down direction at intervals in the left-right direction, and for tearing the back sheet 2 together with the breaking sheet S A cut portion 7 extending in length is formed in the breaking sheet S above the upper seal 8.

  According to such a configuration, when the food is taken out, the breaking sheet S is stretched in the vertical direction, and the back sheet 2 is formed by a plurality of heat seals HS in which the breaking sheet S extends in the vertical direction. Since the tear is guided by the breaking sheet S and the heat seal HS when the notch 7 is grasped and torn downward, the back sheet 2 is surely torn straightly downward. And the openability is improved, and the back sheet 2 is torn together with the breaking sheet S, so that the food can be easily taken out. The width of the cut portion 7 is preferably set to such an extent that the food can be easily taken out, but may be the same level as the breaking sheet S or wider than the breaking sheet S. Moreover, it may be narrow. The cut portion 7 is preferably formed above the upper seal 8, but its lower end may bite into the upper seal 8 as long as the seal by the upper seal 8 is not impaired.

(2) In such a food packaging bag such as a sandwich, in the state where the front sheet 1 and the back sheet 2 are overlapped, the upper side part 3 is formed in a trapezoidal shape with the upper side being the upper base and the lower side part 5 being the lower base. May be. In this way, by arranging the opened lower sides 5 in a staggered manner, it is possible to remove the sheet from the raw roll without waste (high yield), and when storing food, a triangular shape such as a sandwich is used. Food can be stored well.

(3) The lower end of the breaking sheet S may extend to the lower portion of the back surface portion 21 during food storage. If it does in this way, at the time of opening, when grasping the notch part 7 and tearing it down, it can be surely torn to the lower part of the back surface part 21, and opening nature improves.

(4) The upper end of the breaking sheet S may extend to the upper side 3. In this way, the rigidity of the head portion 9 sandwiched between the upper side portion 3 and the upper seal 8 is improved, and the head portion 9 can be held upright even when food is stored.

(5) The width of the cut portion 7 may be narrower than the width of the breaking sheet S. In this way, when the notch 7 is gripped and torn downward, a tear is formed between the plurality of heat seals HS extending in the vertical direction, so that the tear is guided by the heat seal HS and the back sheet 2 is removed. Together with the breaking sheet S, it can be reliably torn downward.

  The food packaging bag of the sandwich etc. of the present invention is notched because the breaking sheet is stretched in the vertical direction and the breaking sheet is joined to the back sheet by a plurality of heat seals extending in the vertical direction. If the part is gripped and torn down, the tear is guided by both the breaking sheet and the heat seal, so the back sheet can be surely torn straight down and the unsealing performance is significantly improved. Since the back sheet is torn together with the breaking sheet, it is torn widely and the food can be easily taken out.

  Hereinafter, a food packaging bag such as a sandwich according to a preferred embodiment of the present invention will be described in detail with reference to the drawings. 1 is a front view of a food packaging bag such as a sandwich (hereinafter referred to as a food bag), FIG. 2 is a front perspective view of a food bag containing food inside, and FIG. 3 is a rear perspective view of the food bag. FIG. 4 is an explanatory view at the time of opening in a perspective view of the back side.

  As shown in FIG. 1, this food bag has a front sheet 1 and a back sheet 2 each having a substantially trapezoidal shape in plan view, and the upper side 3 and both side sides 4 and 4 of both sheets are sealed to form a lower side. After the part 5 is opened and the food is stored in the opened lower side part 5, the lower side part 5 is sealed, transported in that state, and displayed at the store. The front sheet 1 and the back sheet 2 are both preferably materials that can be fused and sealed, especially when packaging sandwiches, but the present invention is not limited to this, and both The sheets 1 and 2 may be any material that can be at least thermally welded.

  In addition, for example, a rectangular inner sheet 10 is adhered to the front sheet 1 for preventing contamination. The inner sheet 10 is made of the same material as the front sheet 1, and for example, the lower part thereof is joined to the front sheet 1 by partial heat sealing. The inner sheet 10 can effectively prevent the front sheet 1 from being soiled by ingredients such as eggs and mayonnaise when the sandwich is housed or transported, and the packaged food bag The appearance can be kept intact.

  On the other hand, on the back sheet 2, a rectangular breaking sheet S with the extending direction oriented in the vertical direction is overlapped, and the breaking sheet is formed by a plurality of heat seals HS extending in the vertical direction at intervals in the horizontal direction. S is joined to the back sheet 2. It is preferable that the upper end of the breaking sheet S reaches the upper side portion 3 and the lower end extends to the lower portion of the back surface portion 2 (see FIG. 3). Then, an opening cut portion 7 extending to the back sheet 2 is formed on the upper part of the breaking sheet S. The width of the cut portion 7 is preferably set to such an extent that the food can be easily taken out, but may be the same level as the breaking sheet S or wider than the breaking sheet S. A little narrower.

  Below the cut portion 7, the front sheet 1 and the back sheet 2 are heat-sealed in the left-right direction by the upper seal 8, and when storing food, the front sheet 1 and the back sheet 2 are placed at both ends of the upper seal 8. The front portion 11 and the rear portion 21 are bent to have the same width as the upper seal 8 (see FIGS. 2 and 3). As described above, the front sheet 1 and the back sheet 2 have a substantially trapezoidal shape in plan view. Therefore, by arranging the opened lower side portions 5 alternately, the sheet can be removed from the raw roll without waste (high yield). In addition, when food is stored, triangular food such as sandwich can be stored well.

  When taking out food from such a food bag, the cut portion 7 formed in the upper portion of the breaking sheet S may be grasped and torn downward. At that time, the breaking sheet S itself is stretched in the vertical direction, and the breaking sheet S is joined to the back sheet 2 by a plurality of heat seals (stripe heat seals) HS extending in the vertical direction. Therefore, as shown in FIG. 4, since the tear is guided to both the breaking sheet S and the heat seal HS from both ends of the cut portion 7, the back sheet 2 is surely torn straightly downward. be able to. Moreover, since the width of the cut portion 7 can be set much wider than when the conventional cut tape 6 shown in FIG. 5 or the like is provided, the back sheet 2 can be cut with a wide width, and the food inside (Not shown) can be easily taken out.

  As shown in FIG. 3, the width of the cut portion 7 is set to be slightly narrower than the width of the breaking sheet S. Preferably, if both ends are set between the heat seals HS, the cut portion 7 is grasped. When it is torn downward, it is guided between the heat seals HS extending in the vertical direction, so that the unsealing property is further improved, even if the direction of the tearing force is slightly oblique, The trouble that 2 is broken diagonally does not occur.

  In particular, the width B of the breaking sheet S is preferably set to be approximately the same as the length of the upper side portion 3 or the width L of the back surface portion 21 (B ≦ L). In this way, the cut portion 7 can be set sufficiently wide, the back sheet 2 can be torn, and the food can be easily taken out (see FIG. 4). Further, the rigidity of the head portion 9 is improved, and the head portion 9 can be stably held in an upright state without breaking the neck even when food is contained (see FIGS. 2 and 3). Note that L can be set to, for example, about 3 to 7 mm (5.5 mm in the present embodiment).

  The food packaging bag such as the sandwich of the present invention is not limited to the embodiment, and can be freely changed in design or improved as necessary, as long as it does not depart from the gist of the invention. The width of 7 may be set larger than the width of the breaking sheet S. Further, the upper end of the breaking sheet S joined to the back sheet 2 by the heat seal HS may not reach the upper side 3. Alternatively, the front sheet 1 and the back sheet 2 may be formed of a single sheet material, a plurality of sheet materials may be joined together, or may be bonded together.

The state which piled up the front sheet | seat and back sheet | seat of food packaging bags, such as a sandwich which concerns on embodiment of this invention, is shown, (a) is a top view, (b) is AA arrow sectional drawing of (a). is there. It is a perspective view of the front side of the food packaging bag. It is a perspective view of the back side of the food packaging bag. It is explanatory drawing at the time of opening of the food packaging bag. It is a top view of the conventional food packaging bag.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Front sheet, 2 ... Back sheet, 3 ... Upper edge part, 4 ... Side edge part, 5 ... Lower edge part, 7 ... Notch part, 8 ... Upper seal, 21 ... Back surface part, S ... Breaking sheet, HS ... Heat sticker

Claims (5)

The front sheet (1) and the back sheet (2) are overlapped, and the upper side part (3) and both side parts (4) (4) of both sheets (1) and (2) are sealed to form the lower side part (5). In a food packaging bag such as a sandwich that opens and stores food from the opened lower side (5), and then the lower side (5) is sealed,
The front sheet (1) and the back sheet (2) are heat-sealed in the left-right direction by the upper seal (8) below the upper side part (3), and the breaking sheet with the extending direction oriented in the up-down direction ( S) is joined to the back sheet (2) by a plurality of heat seals (HS) superimposed on the inner surface of the back sheet (2) and extending in the vertical direction at intervals in the left-right direction, and the back sheet In order to cut the sheet (2) together with the breaking sheet (S), a notch (7) extending to the back sheet (2) is formed in the breaking sheet (S) above the upper seal (8). A food packaging bag such as a sandwich. In the state where the front sheet (1) and the back sheet (2) are overlapped, the upper side part (3) is formed in a trapezoidal shape with the upper base being the upper base and the lower side part (5) being the lower base. A food packaging bag such as a sandwich according to claim 1. The food packaging bag for sandwiches or the like according to claim 1, wherein a lower end of the breaking sheet (S) extends to a lower portion of the back surface portion (21) during food storage. The food packaging bag for sandwiches and the like according to claim 1, wherein an upper end of the breaking sheet (S) extends to the upper side (3). The food packaging bag for sandwiches or the like according to claim 1, wherein the width of the cut portion (7) is narrower than the width of the breaking sheet (S).

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