JP2017047940A - Food packaging bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve a food packaging bag having good appearance without inhibiting an easy-opening operation.SOLUTION: A food packaging bag forms a bag body where three directions are sealed by a top sealing part where a pair of sheets 10 and 1 are overlapped and each sheet is adhered along a line traversing both sides in a state of leaving tip prescribed ranges of each sheet as tabs 4A and 4B, and a side surface sealing part where both sides of each sheet behind the top sealing part are adhered, and includes easy-opening means for tearing off the bag body in one sheet 10. The sheet provided with the easy-opening means is made by laminating a man-made paper 10B on the surface of a plastic film 10A, and a cut line 10C in the tearing direction is put in the man-made paper near the easy-opening means of the sheet.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a food packaging bag for containing solid food such as a triangular sandwich.

  2. Description of the Related Art A food packaging bag is known in which a pair of plastic film sheets are overlapped to form a bag body that is sealed on three sides, and a solid food such as a sandwich is inserted into the bag body for packaging.

  Sandwiches with ingredients made from cooked food sandwiched on the spot were sold on the spot, but now they are packed in a factory or other location and distributed to convenience stores and supermarkets. The sales method to make it popular is also widespread.

  In this case, the appearance of the packaging bag is more important than the case of face-to-face sales. In this regard, conventionally, the whole is generally composed of a sheet made of a transparent plastic film, and colors and patterns have been applied by printing, but the appearance is limited.

  In view of the above problems, a sandwich packaging bag composed of a composite of paper and a transparent plastic film (Patent Document 2), or a cut flower packaging bag composed of one of a pair of sheets made of a spunbonded nonwoven fabric (Patent Document 1). ) Has been proposed.

JP 11-49268 A JP 2004-331129 A

  If one sheet of the packaging bag is made of paper or non-woven fabric as in the known art, a high-class feeling is created from the texture, and the appearance at the display place is improved.

  However, when one sheet is made of paper or non-woven fabric, when bonding is performed by fusing sealing, the sheet is burnt by heat and cannot be fused well, and foreign matter may be mixed.

  The above problem can be solved by making one sheet of laminated plastic paper on the surface of a plastic film. Here, chemical fiber paper is a paper machine made by finely cutting chemical fibers and adding a dispersant or adhesive.

  By the way, the packaged sandwiches sold at convenience stores and supermarkets, etc., must be removed by the customer who purchased them, and the stored food must be taken out. Is generally provided. And as this kind of easy-opening means, the peninsula-shaped notch of the tab portion of the packaging bag, the raised piece obtained by a pair of notches from the end of the tab portion, and the cut tape bonded to the back of the sheet are used in combination In some cases, the sheet is torn in the full length direction as a clue to pull up the piece with a fingertip.

  However, as described above, the synthetic fiber obtained with a paper machine is manufactured while flowing chemical fibers in a certain direction with the paper machine, so that the fibers are easily aligned in the direction of travel, and there is a paper machine. On the other hand, since the sheet constituting the sandwich packaging bag has a trapezoidal shape or a similar shape to a trapezoidal shape, it must be cut out so as to be orthogonal to the original sheet of the sheet in order to realize material removal without waste. did not become.

  For this reason, the paper making of the synthetic fiber enters in a form perpendicular to the tearing direction planned by the easy-open means, so that the tearing in the predetermined direction is prevented by the paper making and the bag is torn in an unexpected lateral direction. Expected.

  The present invention was created for the purpose of providing a food packaging bag in which the above-mentioned problems have been solved.

  That is, the present invention includes a top sealing portion in which a pair of sheets are overlapped, and the sheets are bonded to each other along a line that crosses both sides while leaving a predetermined range of the tip of each sheet as a tab, and the top sealing A bag body in which three sides are sealed by a side sealing portion in which both sides of each sheet behind the portion are bonded to each other, and an easy opening means for tearing the bag body is provided on one sheet. In a food packaging bag that expands the bag body into a plate-like three-dimensional shape along the outline of the food by inserting solid food into the sheet, laminated sheets of synthetic fiber paper on the surface of the plastic film with the easy opening means side It is characterized in that a cut in the tearing direction is made in the synthetic fiber in the vicinity of the means for easily opening the sheet.

  According to a second aspect of the present invention, in the food packaging bag, the easy-opening means is provided on the back surface of the sheet on the plastic film side so that one end of the easy-to-open means reaches the pulling piece provided in the tab portion beyond the top sealing portion. It is a cut tape to be bonded.

  The invention according to claim 3 is characterized in that, in the food packaging bag, the cut penetrates through the synthetic fiber paper and reaches a laminated surface of the plastic film laminated thereon to form a groove.

  The invention described in claim 4 is characterized in that, in the food packaging bag, the cut penetrates the synthetic fiber paper but does not reach the laminated surface of the plastic film laminated thereon.

  The invention according to claim 5 is characterized in that the food packaging bag is provided with a cut by laser processing.

  The invention described in claim 6 is characterized in that the food packaging bag is provided with a cut by ultrasonic processing.

  The invention described in claim 7 is characterized in that in the food packaging bag, a heat seal is adopted as an adhesive means.

  The invention described in claim 8 is characterized in that, in the food packaging bag, the food is a triangular sandwich.

  According to the present invention having the above-described configuration, when the sheet is torn in the full length direction planned by the easy-opening means, the synthetic fiber already has a cut in the vicinity of the easy-opening means. The problem of tearing and tearing the bag in an unexpected lateral direction is prevented.

  In addition, the above cuts are only synthetic fiber paper and do not reach the plastic film as the base material of the sheet, or only reach the laminated surface of the plastic film to form a groove, so that there is no hole in the sheet and the contents Water from the bag does not come out on the bag surface.

The disassembled perspective view of the expansion | deployment state of the food packaging bag of this invention. The perspective view of the packaging state of the food packaging bag of this invention. The perspective view of the opening process of the food packaging bag of this invention. The partially cutaway perspective view of one sheet | seat of the food packaging bag of this invention. The partial notch perspective view of one sheet | seat of the Example from which the food packaging bag of this invention differs.

  Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings. Here, a food packaging bag assuming a triangular sandwich as the food to be packaged will be described as an example. That is, this packaging bag is a depositing section that crosses both sides with a pair of sheets made of plastic film with both sides narrowing toward the tip, and leaving a predetermined range of the tip of each sheet as a tab portion. Three sides are sealed with a top sealing portion in which the sheets are bonded to each other by a sealing adhesive line and a side sealing portion in which both sides of each sheet behind the top sealing portion are bonded to form a bag body.

  In the above bag body, by inserting a triangular sandwich into the bag body, the bag body is three-dimensionally expanded into a plate-like triangle in which the thickness of a pair of opposed slopes is defined by the width of the top sealing portion. . In this case, as a means of tearing the bag body for taking out the sandwich, the back side of any sheet so that one end of the cut tape extends beyond the top sealing adhesive line and reaches the raised piece provided in the tab portion. It is adhered to. In this bag body, the sheet is cut along the direction defined along the cut tape, that is, along the entire length of the slant surface of the bag body, by pulling the pulling piece provided on the tab portion with the fingertip and pulling it up. Produces an effect.

  1-3 is a figure which shows the said food packaging bag. This bag is made of a plastic film to be in contact with a pair of sheets 10 and 1 made of plastic film, a cut tape 6 bonded to the back surface (inner side of the bag) of the sheet 10, and an end surface of the inserted sandwich. It is comprised by the strip | belt-shaped piece 5. The pair of sheets 10 and 1 are configured in a trapezoidal shape or a trapezoid-like shape in which both sides are narrowed toward the tip, and after three sides are sealed to form a bag, the bag is expanded three-dimensionally.

  In this case, a predetermined range of the leading end of the sheet is left as the tab portions 4A and 4B that do not form the bag portion in configuring the bag body, and the rear end of the sheet is left as an opening for inserting food. Specifically, the top sealing bonding lines 2A and 2B for bonding the sheets to each other along the line crossing both sides of the sheet at the starting point of the tab portions 4A and 4B are provided and the top sealing portion. By providing side surface sealing portions 3A and 3B in which both sides of each rear sheet are bonded to each other, the three side sealing portions of the bag body are obtained. Then, the thickness of the pair of inclined surfaces A and B facing each other with the folds A1, A1 and B1, B1 is defined by the width of the top sealing portions 2A and 2B, and the side surfaces C and C are formed into plate-like triangles forming a triangle. The basic shape of the bag is completed by expanding the bag. Here, heat sealing is employed as the bonding means.

  In the bag making process, the cut tape 6 is bonded to the back surface of one sheet 10. The cut tape 6 is arranged so that one end of the cut tape 6 extends beyond the top sealing adhesive lines 2A and 2B and reaches the raised piece S by the notch provided in the tab portions 4A and 4B. The above-described pulling piece S is obtained by cutting the sheet 1A into a U shape here, but the shape is not limited to this, and for example, a pair of cuts having a wider interval at the sheet end than the starting end of the cut tape. Of course, it may be provided.

  In this embodiment, a strip 5 made of a plastic film for preventing contamination that should come into contact with the end face where the inserted sandwich raw vegetables are exposed is disposed on the back surface of the sheet 1.

  After the basic shape is completed through the above steps, Sandenchi is inserted from the rear opening, then the excess part of the bag from the sandwich rear end to the bag rear end opening is folded and sealed with adhesive tape, etc. And packaging is completed.

  In the food packaging bag described above, the sheet 1 constituting the packaging bag is made of, for example, a transparent plastic film, but the sheet 10 on the side where the easy-opening means is provided has a structure in which the synthetic fiber paper 10B is laminated on the surface of the plastic film 10A (See FIG. 4). In this embodiment, anti-fogging OPP is used as the plastic film 10A. On the other hand, the synthetic fiber 10B is preferably a PE system or a PET system, but a PE system may be used when the cut 10C can be processed by a laser described later.

  In the sheet 10 on the side where the easy-opening means is provided, a tear line 10C in the tearing direction is provided only in the synthetic fiber 10B, leaving the plastic film 10A in the vicinity of the easy-opening means of the sheet. In this embodiment, two cuts 10C are provided with the cut tape 6 in between, the start ends of which are continuous with the rear ends of the pull-up pieces S, and the end points reach the end points of the sheet 10.

  As described above, the cut line 10C is provided only on the synthetic fiber paper 10B leaving the plastic film 10A, but as a means for that, laser processing is optimal at the technical level at the time of filing of the present application, and here, a laser marker is used. It is processed. Further, the cut line 10C may be formed by ultrasonic processing.

  FIG. 5 shows a different embodiment of the present invention. Here, the cut 10C penetrates the synthetic fiber 10B and reaches the laminated surface of the plastic film 10A laminated thereon to form a groove 10D.

  When opening the food packaging bag described above, by pulling and pulling up the raised piece S of the tab 4A of the sheet 10 on the side to which the cut tape 10 is bonded, the cut tape bonded thereto is also pulled up. In this case, the sheet is torn along the cut tape as it is, and the central portion is cut off. In this case, since the cut 10C is already present in the vicinity of the cut tape of the synthetic fiber paper 10B, the sheet is torn along the cut, The bag will not tear in an unexpected lateral direction (see FIG. 3).

S Pull-up piece 1 Sheet 2A Adhesive line for top sealing 2B Adhesive line for top sealing 4A Tab 4B Tab 5 Strip strip (for preventing dirt) 6 Cut tape 10 Sheet 10A Plastic film 10B Synthetic fiber 10C Cut 10D Groove

Claims (8)

A top sealing part in which a pair of sheets are overlapped and the sheets are bonded to each other along a line crossing both sides in a state where a predetermined range of the front end of each sheet is left as a tab, and each sheet behind the top sealing part A side sealed portion that bonds both sides of the bag constitutes a bag body that is sealed on three sides, and an easy-open means for tearing the bag body is provided on one sheet, and solid food is inserted into the bag body In the food packaging bag that expands the bag body into a plate-like three-dimensional shape along the outer shape of the food, the sheet on the side provided with the easy-open means is laminated with the synthetic fiber paper on the surface of the plastic film, A packaging bag for food, characterized in that a cut in the tearing direction is made in a synthetic fiber near the easy-opening means. The food packaging bag according to claim 1, wherein the easy-opening means is a cut tape that is bonded to the back surface of the sheet on the side of the plastic film so that one end of the easy-opening means extends beyond the top sealing portion and reaches the raised piece provided in the tab portion. The food packaging bag according to claim 1 or 2, wherein the cut penetrates the synthetic fiber paper and reaches a laminated surface of the plastic film laminated thereon to form a groove. The food packaging bag according to claim 1 or 2, wherein the cut penetrates the synthetic fiber paper but does not reach the laminated surface of the plastic film laminated thereon. The food packaging bag according to any one of claims 1 to 4, wherein the cut is made by laser processing. The food packaging bag according to any one of claims 1 to 4, wherein the cut is made by ultrasonic processing.   The food packaging bag according to any one of claims 1 to 6, wherein heat sealing is adopted as the bonding means.   The food packaging bag according to any one of claims 1 to 7, wherein the food is a triangular sandwich.

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