JP2019055784A - Food packaging bags - Google Patents

Abstract

PROBLEM TO BE SOLVED: To widely open a food packaging bag for containing solid food such as a sandwich.
A top sealing in which a pair of plastic film sheets 10 and 1 are overlapped and the sheets are bonded to each other along a line traversing both sides with the predetermined range of the leading ends of the sheets remaining as tabs 4A and 4B. A bag body in which three sides were sealed by the side sealing portions where the two sides of each sheet behind the top sealing portion were bonded to each other was formed, and the upper portion was cut into a peninsula shape with the lower end left. A raised piece S having a certain area upward is provided by a tongue piece on the tab portion of one sheet, and a cut tape 6 which is raised at one end beyond the top sealing portion and reaches the piece is provided on the back surface of the sheet. In the food packaging bag adhered to the sheet, the cut-out of the raised piece is formed to have a mountain-shaped overhang with an acute angle at both ends in order to give a trigger for tearing the sheet left and right.
[Selection] 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.

  As a packaging bag that assumes a triangular sandwich, a pair of sheets made of plastic film with both sides narrowing toward the tip are overlapped, and the bag body that is sealed on three sides by bonding means such as welding is expanded three-dimensionally What is comprised by this is widely used. In this case, the sealing portion constituting the bag body is provided in a state in which the predetermined range of the front end of the sheet is left as a tab and the rear end is left as an opening, specifically, along a line crossing both sides. It is calculated | required in the side part sealing part which adhere | attached the both sides of each sheet | seat behind the top part sealing part which adhered each sheet | seat, and the top part sealing part.

  In this packaging bag, after the sandwich is housed inside, the excess portion of the bag body that extends from the rear end of the food product to the opening at the rear end of the bag body is folded and sealed with an adhesive tape or the like to be distributed as a packaged sandwich. Therefore, consumers who have purchased this sandwich must remove the packaged food from the package, but it is cumbersome to open the sealing part at the rear end of the food. I was taking it out. However, since it is difficult to tear the bag body without any clue as it is, a number of easy-opening means have been proposed in the past.

  As a typical example of the easy-opening means, a pair of plastic film sheets are overlapped, and the top portions where the sheets are bonded to each other along a line crossing both sides while leaving the predetermined range of the tips of the sheets as tabs. A tongue formed by sealing a bag body with three sides sealed by a sealing portion and a side sealing portion in which both sides of each sheet behind the top sealing portion are bonded together, and the upper portion is cut into a peninsular shape leaving the lower end A raised piece having a certain area above the piece is provided on the tab portion of one sheet, and one end of the cut tape that extends beyond the top sealing portion and reaches the piece is adhered to the back surface of the sheet. Food packaging bags are known (for example, Patent Document 1).

JP 2017-047940 A

  In the above prior art, the sheet is formed along the direction defined along the cut tape by pulling the pulling piece provided on the tab portion with the fingertip and pulling it up, that is, along the entire length of the slant surface of the bag body. Causes the effect of being cut off. In this case, it becomes possible to pull out the sandwich from the window produced by the cutting.

  By the way, it is not enough for an actual consumer, and there are many attempts to make it easier to take out the sandwich by spreading the bag body to the left and right with the window part generated by cutting as a boundary.

  However, the bags are strongly bonded to each other by the bonding line constituting the top sealing portion, and even if one sheet is divided into two by the window portion generated by cutting, the bag is divided into two. Since the sheet is still bonded to the overlapped sheet, even if the divided sheet is pulled left and right, it is restricted by the bonded part and does not spread well, but conversely, it tears irregularly and protrudes from the end face of the sandwich There was a risk of the contents adhering to the hand.

  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 comprises a top sealing portion in which a pair of plastic film sheets are overlapped, and the respective sheets are bonded together along a line crossing both sides in a state where a predetermined range of the leading edge of each sheet is left as a tab, The bag body which sealed three sides by the side sealing part which bonded both sides of each sheet behind the sealing part is constituted, and the upper part is fixed upward by the tongue piece which cuts the upper part into a peninsula shape leaving the lower end. In the food packaging bag in which the raised piece having an area is provided in the tab portion of one sheet, and the cut tape that reaches one piece over the top sealing portion and reaches the piece is adhered to the back surface of the sheet, In order to give a trigger for tearing the sheet to the right and left of the sheet, the above-described cut-out of the pull-up piece is characterized in that it has a shape provided with a mountain-shaped bulge that forms an acute angle at both ends.

  According to a second aspect of the present invention, in the food packaging bag, the turning label is stacked on the raising piece, and the turning label is raised and adhered to the piece with a strong adhesive force. It is characterized in that it is bonded with a weak adhesive force, leaving a non-adhered part at the sheet part around the piece.

  Further, the invention according to claim 3 is characterized in that, in the food packaging bag, the turning label is point-bonded to the sheet at a plurality of point-bonding portions arranged in the sheet portion around the raising piece. .

  According to the present invention, the pulling piece provided on the tab portion is picked up with the fingertips together with the cut tape, and then pulled up, the pulling piece of one sheet is removed from the sheet, and the pulling piece is pulled up to the sheet to form the piece. A cut-out along the line remains. In this case, the cut-out has a shape in which a mountain-shaped protrusion whose tip forms an acute angle is provided at both ends.

  Therefore, if one sheet of the bag body is pulled to the left and right with the window portion generated by the cut as a boundary, the cut portion formed by the mountain-shaped overhanging portion having a sharp tip at both ends is the portion to be cut by the cut tape of the tab portion. Since the sheet exists on both sides of the sheet, it becomes a trigger for tearing, and the sheet can be easily torn along the adhesive line for sealing the top and can be easily opened to the left and right, and a wide opening appears (see FIGS. 5 and 6). ).

  In this case, the cut-out portion is not provided in the three-side sealed bag body but in the tab portion outside the bag body, so that the sealing performance of the bag body is not impaired. Therefore, it is possible to realize a packaged food product that can obtain a wide opening without worrying about the mixing of foreign substances or the deterioration of the food product.

  Further, according to the invention of claim 2, since the pulling piece is adhered to the turning label with a strong adhesive force, if the non-adhesive portion of the turning label is picked up by the fingertip and pulled up, the pulling piece is raised. The piece can be pulled up easily.

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 packaging bag for foodstuffs of this invention. The front view of the principal part of the packaging bag for foodstuffs of this invention. The perspective view of the opening process of the packaging bag for foodstuffs of this invention. The perspective view of the opening process of the packaging bag for foodstuffs of this invention. The front view of the principal part of the Example from which the packaging bag for foodstuffs of this invention differs.

  Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings. 1-3 is a figure which shows the packaging bag for foodstuffs of this invention. 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.

  This bag body has a pair of sheets 10 and 1 made of a plastic film, and a cut tape 6 bonded to the back surface (the inner surface side of the bag) of the sheet 10. In this embodiment, there is provided a strip 5 made of plastic film for preventing contamination which should come into contact with the end face where the material on the back side of the sandwich inserted therein is exposed. 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 front 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, at the starting points of the tab portions 4A and 4B, there are provided top sealing adhesive lines 2A and 2B for bonding the sheets to each other along a line crossing both sides of the sheet. 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 has a certain upper area by a tongue piece that is cut in a peninsular shape with the lower end left, and is obtained by cutting the sheet 1A into a U-shape. . The incision of the above-described pulling piece S has a shape in which a mountain-shaped protrusion having a sharp tip at both ends is provided in order to give a trigger for tearing the sheet 10 to the left and right, and this constitutes a characteristic part of the present invention. To do.

  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.

  When opening the food packaging bag described above, by picking up the non-adhered portion of the turning label 20 on the raised piece S of the tab 4A of the sheet 10 on the side of the sheet 10 to which the cutting tape 10 is bonded, and pulling it up. By pulling up the raising piece and the cut tape adhered to the sheet, the sheet is cut along the cut tape as it is, and the central portion is cut off (see FIG. 3).

  Next, if one sheet 10 of the bag body is pulled to the left and right with the window portion generated by the cut-off as a boundary, the mountain-like overhang at both ends of the cut-out portion of the sheet after the raising piece S is removed from the sheet With the leading edge constituting the acute angle as a trigger, the sheet is easily torn along the top sealing adhesive line 2A and can be easily opened to the left and right, and a wide opening appears (see FIGS. 5 and 6).

  FIG. 7 shows a different embodiment of the present invention. In the figure, reference numeral 20 denotes a turning label. The turning label 20 is a rectangular one that covers the raised piece S and the surrounding 10 sheets, which is made of a plastic film. However, the material and shape are not limited to this. . The turning label 20 is adhered to the pulling piece S with a strong adhesive force, and is adhered to the sheet 10 around the pulling piece with a weak adhesive force leaving a non-adhesive portion. In this embodiment, the turning label 20 is point-bonded to the sheet at a plurality of point-bonding points arranged on the sheet 10 around the raising piece S. Reference numeral 22 in the drawing indicates the above-mentioned point adhesion locations, and here, they are arranged at four locations around the raising piece S. In addition, the code | symbol 21 in a figure shows the strong adhesion location of the label 20 for turning and the raising piece S. FIG. Here, heat sealing is adopted as the above bonding means.

S Pull-up piece 1 Sheet 2A Top-sealing adhesive line 2B Top-sealing adhesive line 4A Tab 4B Tab 5 (for preventing soiling) Strip-like piece 6 Cut tape 10 Sheet 20 Turning label

Claims (3)

  A pair of plastic film sheets are overlapped, and a top sealing part in which 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 a rear part from the top sealing part Construct a bag with three sides sealed by side sealing parts that bond both sides of each sheet, and with a tongue that cuts the upper part into a peninsula shape with the lower end left, and has a certain area upward In the food packaging bag in which the cut piece is provided on the tab portion of one sheet and one end of the cut tape that extends beyond the top sealing portion and reaches the piece is bonded to the back surface of the sheet, the pulling piece A food packaging bag having a shape in which a mountain-shaped protrusion with sharp edges at both ends is provided in order to give a cut of the sheet to the right and left of the sheet.   Overlay the turning label on the pulling piece, and then stick this turning label with a strong adhesive force to the piece, and with a weak adhesive strength leaving a non-adhesive part around the raising piece The food packaging bag according to claim 1, which is adhered.   The food packaging bag according to claim 2, wherein the turning label is spot-bonded to the sheet at a plurality of point-bonding locations arranged on the sheet location around the pull-up piece.

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