JP2013032177A - Packaging bag, and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging bag which is formed to be long sideways and in which a wide opening can be formed in order to avoid a situation in which a user touches a film with his (her) hand or the hand gets dirty by content when taking out the content, though it is formed to be lengthwise so that filling efficiency may not be spoiled when it is filled with the content.SOLUTION: The packaging bag is composed of one film, and formed to be long sideways with a gusset 11 at its bottom and with sealing parts 12 and 13 right and left, and is provided with a rib 14 obtained by thermally fusing both ends of the film in a joined state to turn downward in a crossing state at least on one of front and back surfaces. The rib 14 turning downward functions to hold an opening state by its rigidity. Since the bag is formed to be long sideways and, additionally, the opening is hardly closed, the user easily puts the hand therein and readily gets at the content, whereby he (she) repeatedly takes out the content without causing the hand to get dirty by the content.

Description

  The present invention belongs to the technical field of packaging bags for storing food, and particularly relates to a packaging bag for storing and selling foods such as snacks and other confectionery items picked up by hand.

  Conventionally, this type of packaging bag has been made of a soft packaging material such as a film, and many types of packaging bags are known for its shape. A flat pouch, a stand pouch, a gusset bag, a frame pouch or the like is generally used as a packaging bag for storing various foods such as the beginning.

JP-A-8-91392 JP-A-8-207964

  Among the packaging bags described above, flat pouches and stand pouches are widely used because the size of the bag can be freely designed according to the contents, but the former flat pouch contains only a small amount of contents, and the latter This stand pouch has a filling opening determined in the manufacturing process, and the shape of the filling facility is limited to a vertically long shape.If it is intended to fill a horizontally long stand pouch, the content becomes small. Or filling efficiency will fall.

  In addition, gusset bags are widely used regardless of the contents, but they are difficult to open and have a surface that is difficult to take out because the opening is narrow. In order to overcome this, some gussets on the opening side are folded and sealed inside the bag. This type is easier to open and easier to use, but the size of the opening is the same as that of ordinary gusset bags. Absent.

  Also known is a boat-shaped pouch that has gussets on both sides and the ends of the gussets are sealed. It can be opened sideways, but if you try to open it at the gusset, the opening will not open due to the repulsion of the film, just like a normal gusset bag, avoid opening the gusset Then, since most of the bag is cut off, the contents must be reduced in advance.

  The present invention has been made in view of the problems of the conventional packaging bags as described above, and the purpose thereof is a vertically long shape so as not to impair the filling efficiency during filling, and the contents are When taking out, in order to avoid that a hand touches a film or gets dirty with the contents, a packaging bag which can form a wide opening with a horizontally long shape is provided, and a manufacturing method thereof is also provided.

  In order to achieve the above object, the packaging bag of the present invention is composed of a single film, has a gusset at the bottom and a horizontally long shape with seals on the left and right, and at least one of the front and back surfaces The ribs heat-sealed in the jointed state are provided downward in the transverse state.

  The manufacturing method of the packaging bag is such that, while flowing the film in a vertical direction from top to bottom, first, both ends are heat-sealed in a jointed state and turned toward the bottom of the bag on one of the front and back surfaces. Form a rib by forming a rib in the state, then form a gusset at the bottom of the bag, then form a seal part in the lateral direction and fill the contents from above, then in the lateral direction It is characterized by including a step of creating a continuous packaging bag by repeating the procedure for forming the seal portion, and then sequentially cutting at the seal portion and separating into individual packaging bags. When ribs are provided on both the front and back surfaces, in the manufacturing method, the ribs are formed in a state in which both ends of the film are heat-sealed in a palmed state and facing the bottom of the bag on one of the front and back surfaces. When forming into a cylindrical shape, it is characterized in that the rib is formed in the state facing the bottom of the bag by folding the film on the other of the front and back surfaces in a palmed state and heat-sealing To do.

  In the packaging bag of the present invention, when the upper end portion is removed in the lateral direction and opened, the downward ribs on at least one side serve to maintain the open state due to its rigidity, in addition to the bag being horizontally long Since the opening is difficult to close, it is easy to put the hand inside, and the contents reach the contents immediately, which is convenient for taking out the contents repeatedly without being contaminated with the contents by hand.

  Since the packaging bag of the present invention can be manufactured by partially remodeling the gusset vertical filling machine and using the apparatus, a new filling machine is not required. Even when easy-opening is performed, the opening direction is the flow direction of the bag, so that the manufacturing conditions are not affected. Moreover, there is an advantage that the equipment of the gusset vertical filling machine is suitable for adding a dependent process.

It is explanatory drawing which shows typically 1st Embodiment of the packaging bag which concerns on this invention. It is a perspective view which shows the packaging bag of FIG. 1 in the state seen from the back side. It is a perspective view shown in the state which opened the packaging bag of FIG. It is explanatory drawing which shows typically 2nd Embodiment of the packaging bag which concerns on this invention. It is explanatory drawing which shows typically 3rd Embodiment of the packaging bag which concerns on this invention. It is explanatory drawing which shows typically 4th Embodiment of the packaging bag which concerns on this invention. It is explanatory drawing which shows typically 5th Embodiment of the packaging bag which concerns on this invention. It is explanatory drawing which shows typically 6th Embodiment of the packaging bag which concerns on this invention.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

  1A and 1B show a first embodiment of a packaging bag according to the present invention, in which FIG. 1A is a front view, FIG. 1B is a side view, and FIG.

  The packaging bag 10 shown in FIG. 1 is composed of a single film, has a gusset 11 at the bottom and a horizontally long shape with seal portions 12 and 13 on the left and right, and has a front surface a and a back surface b. Among them, on the back surface b side, ribs 14 are provided facing downward in the transverse state by heat-sealing both ends of the film in a palmed state. Further, as shown in the drawing, a notch 15 for opening is formed at the seal portions 12 and 13 as opening means.

  In order to manufacture the packaging bag 10, a device in which a conventional gusset vertical filling machine (for example, see FIG. 7 of JP 2011-11754 A) is partly modified is used, and the belt is drawn out from a winding. A wide film is processed as follows. That is, while flowing the film in a vertical direction from top to bottom, first, the ribs 14 are placed in a state in which both ends of the film are heat-sealed in a palmed state with a sealer and facing the bottom of the bag on the back b side. Form it into a cylinder. Subsequently, the gusset 11 is formed at the bottom of the bag, and then the procedure for forming the seal portion 12 in the lateral direction, filling the contents from above, and forming the seal portion 13 in the lateral direction is repeated. A continuous packaging bag 10 is created. After that, the product is sequentially cut at the seal portions 12 and 13 and separated into individual packaging bags 10. During the separation, an opening notch 15 is formed at the seal portions 12 and 13.

  The packaging bag 10 is opened by removing the upper end portion in the horizontal direction with the opening notch 15 as a hook. FIG. 2 shows a perspective view before opening, and FIG. 3 shows a perspective view after opening.

  When the packaging bag 10 is opened, the downward rib 14 on the back surface b side plays a role of maintaining the open state due to its rigidity, and the opening is difficult to close as shown in FIG. And since the opening is difficult to close in addition to the bag being horizontally long, it is easy to put a hand inside and the contents S can be easily reached, so the contents can be repeatedly taken out without being soiled by the contents S by hand. .

  4A and 4B show a second embodiment of the packaging bag according to the present invention, in which FIG. 4A is a front view, FIG. 4B is a side view, and FIG. 4C is a rear view.

  The packaging bag 20 shown in FIG. 4 is composed of a single film, has a gusset 21 at the bottom and a horizontally long shape with seals 22 and 23 on the left and right, and a film on the back b side. The ribs 24 are heat-sealed in a transverse state at both ends of the film. The ribs 25 are provided downward in the transverse state. . Further, as shown in the drawing, an opening notch 26 is formed at the sealing portions 22 and 23 as opening means.

  In order to manufacture the packaging bag 20, an apparatus obtained by partially modifying a conventional gusset vertical filling machine is used, and a wide film drawn out from a winding into a strip shape is processed as follows. That is, while flowing the film from top to bottom in the vertical direction, first, the film is bent at a position on the surface a side so that the film protrudes in a palmed state and is heat-sealed by a sealer to be the bottom of the bag. The rib 25 is formed in a state of facing, and both ends of the film are heat-sealed with a sealer in a palmed state, and the rib 24 is formed in a state of facing the bottom of the bag on the back surface b side. To. Subsequently, the gusset 21 is formed at the bottom of the bag, then the seal portion 22 is formed in the lateral direction, the contents are filled from above, and then the seal portion 23 is formed in the lateral direction. A continuous packaging bag 20 is created. After that, it is sequentially cut at the seal portions 22 and 23 and separated into individual packaging bags 20. During the separation, an opening notch 26 is formed at the seal portions 22 and 23 as shown in the drawing.

  The packaging bag 20 is opened by removing the upper end in the lateral direction with the opening notch 26 as a hook. In the opened state, in addition to the downward rib 24 on the back surface b side, the rib 25 on the front surface a side plays a role of maintaining the open state due to their rigidity, and compared with the case where the rib is only on one side, Becomes more difficult to close. Since the opening is difficult to close in addition to the bag being horizontally long, it is easy to put in the hand and the contents reach the contents immediately, so that the contents can be repeatedly taken out without being stained with the contents.

  FIG. 5 shows a third embodiment of the packaging bag according to the present invention, in which (a) is a front view, (b) is a side view, and (c) is a rear view.

  The packaging bag 30 shown in FIG. 5 is composed of a single film, has a gusset 31 at the bottom and a horizontally long shape with seal portions 32 and 33 on the left and right sides, and a film on the back side. Ribs 34 that are heat-sealed with both ends in a palmed state are provided downward in a transverse state. Further, the gusset 31 is bonded by hot melt at the left and right seal portions 32 and 33 in order to form a boat shape when the contents are inserted (adhesive portions 35 and 36). Further, as shown in the drawing, a notch 37 for opening is formed at the sealing portions 32 and 33 as opening means.

  In order to manufacture the packaging bag 30, an apparatus obtained by partially modifying a conventional gusset vertical filling machine is used, and a wide film drawn out from a winding into a strip shape is processed as follows. That is, while flowing the film in a vertical direction from top to bottom, first, the ribs 34 are placed in a state where both ends of the film are heat-sealed with a sealer in a palmed state and facing the bottom of the bag on the back b side. Form it into a cylinder. Subsequently, a gusset 31 is formed at the bottom of the bag. Next, a seal portion 32 is formed in the lateral direction, hot melt is applied to the adhesive portion 35 to make the gusset 31 part bonded at the seal portion 32, and then the contents are filled from above and then the side is filled. The sealing part 33 is formed in the direction, hot melt is applied to the adhesive part 36, and the procedure of pasting the portions of the gusset 31 together at the sealing part 33 is repeated to create a continuous packaging bag 30. After that, the product is sequentially cut at the seal portions 32 and 33 and separated into individual packaging bags 30. During the separation, an opening notch 37 is formed at the seal portions 32 and 33.

  The packaging bag 30 is opened by removing the upper end in the lateral direction with the opening notch 37 as a hook. In the opened state, the downward rib 34 on the back surface b side plays a role of maintaining the open state by its rigidity while maintaining the boat shape as a whole, and the opening is difficult to close. Since the opening is difficult to close in addition to the bag being horizontally long, it is easy to put in the hand and the contents reach the contents immediately, so that the contents can be repeatedly taken out without being stained with the contents.

  6A and 6B show a fourth embodiment of a packaging bag according to the present invention, in which FIG. 6A is a front view, FIG. 6B is a side view, and FIG.

  The packaging bag 40 shown in FIG. 6 is composed of a single film, has a gusset 41 at the bottom and a horizontally long shape with seal portions 42 and 43 on the left and right, and a film on the back surface b side. The ribs 44 that are heat-sealed at both ends in a palm-like state are provided downward in a transverse state. Further, one seal portion 43 is vertically folded and overlapped on the surface a side, and is bonded using a heat sealant. Further, as shown in the figure, a notch 45 for opening is formed at the seal portions 42 and 43 as opening means.

  In order to manufacture the packaging bag 40, an apparatus obtained by partially modifying a conventional gusset vertical filling machine is used, and a wide film drawn out from a winding into a strip shape is processed as follows. That is, while flowing the film in a vertical direction from top to bottom, first, the ribs 44 are formed in a state in which both ends of the film are heat-sealed in a palmed state by a sealer and faced toward the bottom of the bag on the back b side. Form it into a cylinder. Subsequently, the gusset 41 is formed at the bottom of the bag, and then the procedure for forming the seal portion 42 in the lateral direction and filling the contents from above and then forming the seal portion 43 in the lateral direction is repeated. A continuous packaging bag 40 is created. Then, after sequentially cutting and separating into individual packaging bags 40 at the seal portions 42 and 43, the one seal portion 43 is vertically folded and overlapped on the surface a side, and bonded together using a heat sealant. At the time of separation into individual packaging bags 40, an opening notch 45 is formed at the seal portions 42 and 43.

  The packaging bag 40 is opened by removing the upper end in the lateral direction with the opening notch 45 as a hook. In the opened state, one seal portion 43 is vertically folded and bonded to the front surface a side, so that the downward rib on the back surface b side is maintained while maintaining the state where the seal portion 43 is greatly expanded. 44 plays the role of maintaining the opening state due to its rigidity, and the opening is difficult to close. And since the wide open opening is difficult to close in addition to the bag being horizontally long, it is easy to put in the hand and the contents reach quickly so that the contents can be repeatedly taken out without being dirty with the contents by hand. it can.

  FIG. 7 shows a fifth embodiment of the packaging bag according to the present invention, in which (a) is a front view, (b) is a side view, and (c) is a rear view.

  The packaging bag 50 shown in FIG. 7 is made of a single film, has a gusset 51 at the bottom and a horizontally long shape with seal parts 52, 53 on the left and right, and a film on the back b side. Ribs 54 that are heat-sealed at both ends in a palmed state are provided downward in a transverse state. Furthermore, in order to reinforce so as not to break the bag even if the contents are inserted, the left and right seal portions 52 and 53 are in the middle and a part thereof is further heat-sealed to form reinforcing seal portions 55 and 56, Reinforcing seal portions 57 and 58 are formed by heat-sealing in an oblique direction so that the portion of the gusset 51 hangs on the left and right seal portions 52 and 53. Further, as shown in the drawing, an opening notch 59 is formed at the seal portions 52 and 53 as an opening means.

  In order to manufacture this packaging bag 50, a wide film unrolled from a winding into a strip shape is processed as follows using a device in which a conventional gusset vertical filling machine is partially modified. That is, while flowing the film from top to bottom in the vertical direction, first, the ribs 54 are attached in a state where both ends of the film are heat-sealed in a palmed state by a sealer and faced toward the bottom of the bag toward the back b. To form a cylinder. Subsequently, a gusset 51 is formed at the bottom of the bag. Next, the seal portion 52 is formed in the lateral direction, and the reinforcement seal portions 55 and 57 are further formed. After the contents are filled from above, the seal portion 53 is formed in the lateral direction, and the reinforcement seal portions 56 and 58 are further formed. The procedure of forming is repeated to create a continuous packaging bag 50. After that, it is sequentially cut at the seal portions 52 and 53 and separated into individual packaging bags 50. During the separation, an opening notch 59 is formed at the seal portions 52 and 53.

  In this packaging bag 50, the left and right seal portions 52, 53 are reinforced and sealed not only in the middle, but also in the bottom gusset 51. It has become. And it opens by notching 59 for opening, and removing an upper end part in a horizontal direction. In the opened state, the downward ribs 54 on the back surface b side serve to maintain the open state due to its rigidity, and the opening is difficult to close. Since the opening is difficult to close in addition to the bag being horizontally long, it is easy to put in the hand and the contents reach the contents immediately, so that the contents can be repeatedly taken out without being stained with the contents.

  FIG. 8 shows a packaging bag according to a sixth embodiment of the present invention, in which (a) is a front view, (b) is a side view, and (c) is a rear view.

  The packaging bag 60 shown in FIG. 8 is made of a single film, has a gusset 61 at the bottom and a horizontally long shape with seals 62 and 63 on the left and right, and a film on the back b side. The ribs 64, which are heat-sealed in a palmed state at both ends, are provided downward in a transverse state. Further, as shown in the drawing, a notch 65 for opening is formed at the sealing portions 62 and 63 as opening means. Further, a chuck 66 is attached below the opening notch 65 and above the rib 64 so that it can be reclosed after opening.

  In order to manufacture the packaging bag 60, a wide film fed out from a winding into a belt shape is processed as follows using an apparatus in which a conventional gusset vertical filling machine is partially modified. That is, while the film is flowed vertically from top to bottom, first, the meshed chuck 66 is heat-fused while flowing in a strip shape and attached to the inner surface side of the film, and then both ends of the film are held by the sealer. It is made into a cylindrical shape by forming the rib 64 in a state where it is heat-sealed in a state and faces the bottom of the bag on the back surface b side. Subsequently, the gusset 61 is formed at the bottom portion of the bag, and then the procedure for forming the seal portion 62 in the lateral direction, filling the contents from above and forming the seal portion 63 in the lateral direction is repeated. The continuous packaging bag 60 is created. After that, it is sequentially cut at the seal portions 62 and 63 and separated into individual packaging bags 60. During the separation, an opening notch 65 is formed at the seal portions 62 and 63.

  The packaging bag 60 is opened by using the opening notch 65 as a hook, removing the upper end in the lateral direction, and then removing the chuck 66 to open the packaging bag 60. In the opened state, the downward rib 64 on the back surface b side plays a role of maintaining the open state due to its rigidity, and the opening is difficult to close. Since the opening is difficult to close in addition to the bag being horizontally long, it is easy to put in the hand and the contents reach the contents immediately, so that the contents can be repeatedly taken out without being stained with the contents. Further, by engaging the chuck 65, it can be reclosed with the contents remaining.

  As mentioned above, although 6 embodiment was mentioned and demonstrated about the packaging bag of this invention, among these, the packaging bag of 2nd Embodiment crossed the rib which the packaging bag of 1st Embodiment was heat-seal | fused to the back side. In contrast to the type provided downward, ribs thermally bonded to both the front and back surfaces are provided downward in a transverse state. The packaging bags of the third to sixth embodiments are provided with ribs only on the back surface side, but these packaging bags also have ribs on both the front and back surfaces, as in the packaging bag of the second embodiment. It can be a provided type. In this way, in the type in which the ribs heat-sealed on both the front and back sides are provided downward in the transverse state, the opening opened and widened is shaped by both ribs compared to the case where the rib is only on one side. Since it is kept, it becomes a state which is harder to close.

  Further, the opening means of the packaging bag is not limited to the V-shaped notch as described above. For example, a film in which a uniaxially stretched film is laminated may be used, or a surface processing may be performed with a laser or the like so as to have a straight cut function.

  Examples of the flexible packaging material for forming the packaging bag of the present invention include a laminated film mainly composed of plastic. In a simple structure, a laminated film having a structure in which a sealant layer is laminated on a base film layer is used. Depending on the contents filled in the bag, handling conditions after filling, or required performance such as water vapor and other gas barrier properties, light shielding properties, various mechanical strengths, etc., the base film layer and the sealant layer For example, a laminated film having a structure in which a water vapor or other gas barrier layer, a light shielding layer, a strength improving layer, or the like is laminated as an intermediate layer is used. Specific examples of the specification of the flexible packaging material include the following.

1) Powder seasoning PET (12 μm) / AC / PE (13 μm) / Al (9 μm) / AC / PE (30 μm)
2) Miso soup OPP (30 μm) / AC / PE (15 μm) / PEF (18 μm) / AC / PE (30 μm) 3) Snack confectionery OPP (18 μm) / AC / PE (10 μm) / deposition PEF (9 μm) / AC / PE (10μm) / CPP (18μm)
4) 飴 PET (12 μm) / DL / deposition CPP (25 μm)
5) Confectionery ONy (15 μm) / DL / deposition PEF (12 μm) / DL / PEF (15 μm)

  As mentioned above, although the form for implementing this invention has been demonstrated in detail, the packaging bag package by this invention is not limited to said embodiment at all, In the range which does not deviate from the meaning of this invention, it is various. Of course, changes are possible.

  The packaging bag of the present invention is preferably used when storing and selling foods such as snacks and other confectionery items picked up by hand from the inside, but since the opening is kept wide after opening, it is limited to foods. It can also be used to sell other contents that are not opened but placed on a table or the like and taken out from the inside.

DESCRIPTION OF SYMBOLS 10 Packaging bag 11 Gusset 12, 13 Seal part 14 Rib 15 Notch for opening 20 Packaging bag 21 Gusset 22, 23 Seal part 24, 25 Rib 26 Notch for opening 30 Packaging bag 31 Gusset 32, 33 Seal part 34 Rib 35, 36 Adhesion Part 37 opening notch 40 packaging bag 41 gusset 42,43 seal part 44 rib 45 opening notch 50 packaging bag 51 gusset 52,53 seal part 54 rib 55-58 reinforcing seal part 59 opening notch 60 packaging bag 61 gusset 62, 63 Sealing part 64 Rib 65 Notch for opening 66 Chuck

Claims (3)

  Consists of a single film and has a horizontally long shape with gussets at the bottom and seals on the left and right sides, and at least one of the front and back surfaces is provided with heat-sealed ribs facing down in a transverse state A packaging bag characterized by being made.   While flowing the film from top to bottom in the vertical direction, first, heat-bonding both ends in a palmed state and forming ribs in the state facing the bottom of the bag on one of the front and back surfaces Next, repeat the procedure to form a gusset at the bottom of the bag, then form a seal part in the lateral direction, fill the contents from above, and then form the seal part in the lateral direction. A method for manufacturing a packaging bag comprising the steps of: sequentially creating a packaging bag in a continuous state and then cutting the packaging bag at a seal portion and separating it into individual packaging bags.   In the manufacturing method of the packaging bag of Claim 2, by forming the rib in the state which faced the direction which becomes the bottom part of a bag in one of the front and back surfaces, both ends of a film are heat-sealed in the palm state. When forming into a cylindrical shape, the packaging bag is characterized in that a rib is formed in a state facing the bottom of the bag by bending the film on the other of the front and back surfaces in a palmed state and heat-sealing the film. Manufacturing method.

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