JP6540035B2 - Packaging bag with weighing function - Google Patents

Description

  The present invention relates to a packaging bag with a weighing function having a function of weighing contents such as powdered or granular foods, detergents and the like in fixed amounts.

  As a packaging form in the case of sealing the contents such as powdered or granular food or detergent with a packaging film, a resin film in which a heat adhesive resin is laminated on the inner side is used to seal 4 sides or 3 sides After filling the contents into the formed film bag, a packaging form in which the filling port is sealed is used. In these packaging forms, the contents are taken out by gripping the both sides of the opening notch (notch) formed in the seal portion of the film edge and tearing the film.

  In such a conventional packaging form, there has been a demand for measuring and taking out the contents by a fixed amount. Therefore, various packaging bags have been proposed in which the contents can be measured and taken out by a fixed amount each time, for example, in Patent Document 1, the first partition material and the second partition in which the inside of the pouch is a film of the same width as the pouch There is disclosed a weighing pouch which is divided by a material into a storage room, a weighing room and a discharge room. In Patent Document 2, there is provided a standing pouch container in which a bag portion opened toward the outlet of the container is provided in an inner space surrounded by a film or thin-walled forming wall, and a cup-shaped simple weighing device is inserted into the bag portion. It is disclosed.

  Further, Patent Document 3 includes a bag main body formed by forming a storage chamber by providing a peripheral seal portion on the peripheries of films facing each other, and a spout provided on the bag main body, and the storage chamber communicates with the spout. A packaging bag with a weighing function is disclosed which has a weighing chamber, a main chamber adjacent to the weighing chamber with a compartment seal part, and a passage for enabling the flow of contents between the weighing chamber and the main chamber. There is.

JP 2001-122360 A JP, 2005-29177, A JP, 2013-56698, A

  However, since the pouch with a weighing function of Patent Document 1 needs to divide the inside of the pouch by the first partition material and the second partition material, bonding becomes complicated and productivity is poor, and it is practically used as a packaging material for food and detergent It was not target. In addition, in the standing pouch container of Patent Document 2, since it is necessary to insert the measuring device manufactured separately from the container body into the bag portion of the container body, the manufacturing process becomes complicated, and the measuring device and the container body are different. When it is formed of a material, it is necessary to break the container body after use to separate and collect the measuring device.

  On the other hand, in the packaging bag with the weighing function of Patent Document 3, a cap for resealing the spout provided in the weighing chamber is required, and the number of members is increased. In addition, when the packaging bag is turned upside down, the measuring chamber is located above the passage, which makes it difficult to smoothly fill the powder or granular contents into the measuring chamber. .

  In view of the above problems, the present invention has an object to provide a packaging bag with a weighing function which can measure powdery or granular contents in constant amounts and can also prevent leakage of contents after opening. .

  In order to achieve the above object, the present invention is a packaging bag formed by a laminate having at least an outer layer and an inner layer made of a heat adhesive resin, wherein powder or granular contents are enclosed. A storage portion, a cylindrical measuring portion formed projecting from the storage portion and communicating with the storage portion, a seal portion closing the periphery of the storage portion and the measurement portion, and the storage portion of the seal portion A packaging bag with a weighing function, which is formed in a wide seal portion sandwiched between the first and second weighing portions and into which a tip of the weighing portion can be inserted, and an opening means formed at the tip portion of the weighing portion. is there.

  Further, the present invention is characterized in that, in the packaging bag of the above configuration, the measuring portion is formed in an arc shape in which a tip end portion is curved in a direction approaching the slit.

  Further, in the packaging bag according to the present invention, in the packaging bag having the above configuration, the measuring unit is formed in a straight line, and the angle between the peripheral edge of the storage unit and the measuring unit continuing on both sides of the measuring unit is 90 ° or more It is characterized by certain things.

  Further, according to the present invention, in the packaging bag of the above configuration, a pair of engaging portions engaged with the slits are formed in the seal portion closing the peripheral edge of the measuring portion, and the opening means is the engagement It is characterized in that it is formed closer to the tip of the measuring unit than the unit.

  In the packaging bag according to the present invention, the engagement portion is a pair of engagement projections which project from both end edges of the seal portion.

  Further, according to the present invention, in the packaging bag of the above configuration, a plurality of the slits are formed in the wide seal portion.

  In the packaging bag according to the present invention, the inner dimension in the width direction of the measuring unit is 10 mm or more and 120 mm or less.

  According to the first configuration of the present invention, after opening the leading end of the measuring unit, the packaging bag is turned upside down in a state in which the measuring unit is bent and inserted into the slit, and the space to the bending unit of the measuring unit By filling the contents and holding the connection part between the storage part and the measurement part by hand, the tip part of the measurement part is pulled out from the slit, so that only the contents filled in the space from the connection part to the bending part It can be taken out, and it becomes possible to measure and take out a certain amount of contents easily. In addition, after the contents are taken out, the packaging bag that has been turned upside down is returned to the original state, and the tip of the measuring unit is inserted into the slit and stored, whereby the ingress of foreign matter from the opening is also achieved. It can prevent.

  Further, according to the second configuration of the present invention, in the packaging bag of the first configuration, the measuring portion protrudes from the storage portion by forming an arc-shaped measuring portion in which the tip end portion curves in the direction approaching the slit. The angle of the proximal end of can be increased. Therefore, when the packaging bag is turned upside down and the space between the connecting portion and the bending portion is filled with the contents, the contents are likely to fall, and even if the contents are powders having low fluidity, they are contained in the measuring portion The contents can be filled smoothly. Moreover, the dimension of the vertical direction of a packaging bag can also be restrained small by curving a measurement part in circular arc shape.

  Further, according to a third configuration of the present invention, in the packaging bag of the first configuration, the measuring unit is made linear, and an angle formed by the periphery of the storage unit continuous on both sides of the measuring unit and the measuring unit. By setting the angle to 90 ° or more in any case, when the packaging bag is turned upside down and the content is filled in the space from the connection portion to the bending portion, the content easily falls from the storage portion to the weighing portion, Even if the content is a powder with low flowability, it can be smoothly filled in the measuring section.

  Further, according to a fourth configuration of the present invention, in the packaging bag according to any one of the first to third configurations, a pair of engaging portions engaged with the slits in the seal portion closing the periphery of the measuring portion The opening portion is formed closer to the tip than the engaging portion, and after the measuring portion is opened, the engaging portion is engaged with the slit so that the measuring portion is securely inserted in the slit There is no risk of leakage of the remaining contents if the packaging bag falls over.

  Further, according to the fifth configuration of the present invention, in the packaging bag of the fourth configuration, the engaging portion is a pair of engaging projections projecting from both end edges of the sealing portion, whereby the notch is formed in the sealing portion. The risk of damaging the seal portion can be avoided as compared with the case of forming the ring-shaped engagement portion.

  Further, according to the sixth configuration of the present invention, in the packaging bag according to any one of the first to fifth configurations, the slit for inserting the measuring portion is selected by forming the plurality of slits in the wide seal portion. By doing this, the amount of taken out contents can be changed to 2 or more.

  Further, according to the seventh configuration of the present invention, in the packaging bag according to any one of the first to sixth configurations, by setting the inner dimension in the width direction of the measuring portion to 10 mm or more and 120 mm or less, from the storage portion While the contents are smoothly filled in the measuring part, it becomes easy to hold by hand when blocking the communication between the storage part and the measuring part.

A plan view of the weighing function-equipped packaging bag 1 according to the first embodiment of the present invention Cross-sectional enlarged view of the front side film 2a and the back side film 2b which constitute the packaging bag 1 of the first embodiment The top view which shows the state which opened the front-end | tip of the measurement part 5 of the packaging body 1 of 1st Embodiment. The top view which shows the state which inserted the front-end | tip of the measurement part 5 in the slit 10 from the state of FIG. The top view which shows the state which made the packaging bag 1 upside down from the state of FIG. The top view which shows the state which pressed the connection part 7 by hand from the state of FIG. 5 The top view which shows the state which pulled out the front-end | tip of the measurement part 5 from the slit 10 from the state of FIG. Top view of the packaging bag 1 in which the plurality of slits 10 are formed in the wide seal portion 3a The top view of the packaging bag 1 with a measurement function which concerns on 2nd Embodiment of this invention The top view which shows the state which inserted the front-end | tip of the measurement part 5 in the slit 10, after opening the front-end | tip of the measurement part 5 of the package 1 of 2nd Embodiment. The top view of the packaging bag 1 with a measurement function which concerns on 3rd Embodiment of this invention The top view which shows the state which inserted the front-end | tip of the measurement part 5 in the slit 10, after opening the front-end | tip of the measurement part 5 of the package 1 of 3rd Embodiment.

  Hereinafter, the package of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of a packaging bag 1 with a weighing function according to a first embodiment of the present invention. The packaging bag 1 shown in FIG. 1 is a storage unit 4 for storing the powder-like or granular content 6 by heat-sealing the peripheral portion of the front side film 2a and the back side film 2b to form the seal portion 3. And a cylindrical measuring unit 5 that protrudes obliquely upward from the storage unit 4.

  The storage unit 4 and the measurement unit 5 are in communication with each other at the connection unit 7, and the contents 6 can be moved from the storage unit 4 to the measurement unit 5 via the connection unit 7. A pair of engagement protrusions 9 are formed on the seal portion 3 at the tip of the measuring portion 5. Each engaging projection 9 is formed with an opening notch (I notch) 8a, and between the opening notches 8a is formed a cutting line 8b formed of a half cut line formed so as to cross the measuring portion 5 There is. The opening notch 8 a and the score line 8 b constitute an opening means of the packaging bag 1.

  The seal portion 3 located between the storage portion 4 and the weighing portion 5 is a wide seal portion 3a formed wider than the other portions, and the slit 10 is formed in the wide seal portion 3a. . The opening length L1 of the slit 10 is substantially the same as the outer dimension L2 of the measuring unit 5 (the distance between the outer edges of the sealing unit 3), and the measuring unit 5 is bent toward the storage unit 4 to insert the tip into the slit 10. It has become. Further, in the connecting portion 7, a mark 11 indicating a portion to be pressed by hand when taking out the contents 6 to be described later is provided by printing or by sticking a seal.

  The bottom seal portion 3 b formed at the bottom of the packaging bag 1 is an unsealed opening prior to the filling of the contents 6 to be used for the filling port of the contents 6. The packaging bag 1 is sealed by heat sealing after the filling of the packaging bag 1.

  Next, the laminated structure of the front side film 2a and the back side film 2b will be described in detail. As shown in FIG. 2, the surface side film 2a and the back surface side film 2b are a laminated body which laminated | stacked the outer layer 12 and the inner layer 14 which consists of a heat bondable resin layer (thermoplastic resin layer).

  As the outer layer 12, since it becomes a basic material constituting the packaging bag 1, a synthetic resin film or paper material having excellent properties in mechanical, physical, chemical, etc. can be used, for example, polyester It is possible to use a resin film of a system, a polyamide system, a polypropylene system or the like. Moreover, as these resin films, the biaxially stretched stretched film is suitable. The reason for this is that a print layer (described later) is usually formed on the outer layer 12 in many cases, and printability is required. The thickness of the film constituting the outer layer 12 may be determined in consideration of the cost and the like, but about 12 to 25 μm is appropriate.

  As a specific example of the outer layer 12 used in the present invention, single materials or laminates thereof such as a biaxially stretched nylon film, a biaxially stretched polypropylene film (OPP), a biaxially stretched polyester resin film, etc. are used. A polyester resin film is particularly preferably used. Specific materials of the biaxially stretched polyester resin film include, for example, polyethylene terephthalate resin (PET), polybutylene terephthalate resin, polyethylene-2,6-naphthalate resin, polybutylene-2,6-naphthalate, polycyclohexanedimethylene terephthalate Various polyester resins such as resins can be used.

  The outer layer 12 may be provided with a printing layer to which a desired printing pattern such as characters, figures, symbols, and patterns is added. The printing layer is formed mainly of one or more kinds of ordinary ink vehicles, and, if necessary, a plasticizer, a stabilizer, an antioxidant, a light stabilizer, an ultraviolet light absorber, a curing agent, and a crosslinking agent. Add one or more additives such as lubricants, lubricants, antistatic agents, fillers, etc., and add colorants such as dyes and pigments, and sufficiently knead with solvents, diluents, etc. The ink composition is adjusted. Then, using this ink composition, a desired printing pattern is printed on the back surface of the outer layer 12 by a printing method such as gravure printing, offset printing, letterpress printing, screen printing, transfer printing, flexographic printing, etc. to form a printing layer.

  The inner layer 14 is a layer made of a heat adhesive resin, and is melted by heat to fuse the front side film 2a and the back side film 2b to each other. The heat adhesive resin used for the inner layer 14 is, for example, low density polyethylene (LDPE), medium density polyethylene, high density polyethylene, linear (linear) low density polyethylene (LLDPE), polypropylene (CPP), silica, Polypropylene (VMCPP) provided with a deposited layer of alumina, aluminum, etc., ethylene-α-olefin copolymer, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, ionomer resin, ethylene-acrylic acid copolymer, ethylene Copolymers of ethylene and acrylic acid ester, ethylene-methacrylic acid copolymer, ethylene-propylene copolymer, methylpentene polymer, polyethylene or polypropylene, and other polyolefin resins such as acrylic acid, methacrylic acid, maleic anhydride, fumaric acid, etc. of It one not selected from acid-modified polyolefin resin modified with unsaturated carboxylic acid may be used or two or more kinds. As a preferable thing, an unstretched polypropylene can be mentioned. As a method of forming the inner layer 14, a method of laminating the above-mentioned heat adhesive resin by a melt extrusion method, or a method of laminating a thermoplastic single layer or multilayer film is used. The layer thickness of the inner layer 14 may be appropriately determined in consideration of required physical properties (heat sealability), cost and the like, and is preferably about 15 μm to 100 μm, particularly about 25 μm to 50 μm.

  If the content to be sealed is easily degraded by water or oxygen, a barrier layer that imparts water vapor barrier properties and gas barrier properties to the packaging bag 1 may be laminated between the outer layer 12 and the inner layer 14. As the barrier layer, films such as biaxially oriented polyethylene terephthalate (PET), biaxially oriented polypropylene (OPP), ethylene-vinyl acetate copolymer saponified product (EVOH), polyvinylidene chloride (PVDC), polyacrylonitrile (PAN), etc. Besides, aluminum foil (AL), or a biaxially stretched nylon film (ONY) provided with a deposited layer of silica, alumina, aluminum or the like, or a PVDC coating layer, a deposited layer of silica, alumina, aluminum or the like Polypropylene film (VMCPP), polyethylene terephthalate film (VMPET), etc. can be used. Among these, a film provided with an aluminum foil or an aluminum deposition layer can also serve as a light shielding layer because it is opaque. As an aluminum foil used for a barrier layer, the aluminum foil by which the annealing process was carried out is suitable, and about 6-15 micrometers is suitable as the thickness.

  In addition, physical properties required for the packaging bag 1, such as mechanical toughness, bending resistance, puncture resistance (pinhole resistance), impact resistance, cold resistance, heat resistance, chemical resistance, etc., are imparted. In order to do so, an intermediate layer may be laminated between the outer layer 12 and the inner layer 14. As an intermediate | middle layer, oriented films, such as polyolefin, such as polyester, polyamide, polyethylene, a polypropylene, an ethylene propylene copolymer, etc. can be used, for example. Alternatively, when the barrier layer is laminated between the outer layer 12 and the inner layer 14, an intermediate layer may be further laminated between the outer layer 12 and the barrier layer or between the barrier layer and the inner layer 14.

  As a method of producing the front side film 2a and the back side film 2b, a lamination method used when producing a normal packaging material, for example, dry lamination method, wet lamination method, solventless lamination method, extrusion lamination method, and the like Methods can be used.

  In addition, when laminating the above-mentioned layers, if necessary, pretreatment such as corona discharge treatment, ozone treatment, flame treatment, blast treatment and the like can be optionally performed on the surface of the laminated base material.

  As a specific example of the front side film 2a and the back side film 2b mainly composed of the synthetic resin as described above, a laminated film having the following layer configuration can be mentioned as a representative example. The following 1) to 8) are laminated films according to the dry lamination method, and each layer is bonded with an adhesive. The following 10) and 11) are laminated films by the extrusion lamination method, and PE (polyethylene) plays a role of the inner layer 14 (adhesive layer). The values in parentheses indicate the thickness of each layer.

1) PET (12 μm) / CPP (25 to 50 μm)
2) PET (12 μm) / LLDPE (25 to 50 μm)
3) PET (12 μm) / ONY (15 μm) / LLDPE (25 to 50 μm)
4) PET (12 μm) / VMPET (12 μm) / LLDPE (25 to 50 μm)
5) PET (12 μm) / VMPET (12 μm) / CPP (25 to 50 μm)
6) PET (12 μm) / AL (7 μm) / LLDPE (25 to 50 μm)
7) OPP (20 to 30 μm) / CPP (25 to 50 μm)
8) OPP (20 to 30 μm) / LLDPE (25 to 50 μm)
9) OPP (20 to 30 μm) / VMCPP (25 to 50 μm)
10) PET (12 μm) / PE (10 to 25 μm) / AL (7 μm) / PE (10 to 25 μm) / LLDPE (25 to 50 μm)
11) PET (12 μm) / PE (10 to 25 μm) / VMPET (12 μm) / PE (10 to 25 μm) / LLDPE (25 to 50 μm)

  Next, the manufacturing method of the packaging bag 1 of this invention is demonstrated. First, the storage portion 4 and the weighing portion 5 are formed by laminating the front side film 2a and the back side film 2b so that the inner layer 14 faces each other and forming the seal portion 3 other than the bottom seal portion 3b. Next, when punching out into a predetermined shape along the seal portion 3, a semifinished product of the packaging bag 1 is manufactured by forming the opening notch 8a, the score line 8b, the engagement protrusion 9, and the slit 10.

  The score line 8b may be formed physically using a rotary die cutter, but is preferably formed on the outer layer 12 after being formed into a laminated film using a pulse oscillation type laser or the like. As a laser used for formation of the score line 8b, a carbon dioxide gas laser, a YAG laser, a semiconductor laser, an argon ion laser, etc. can be used, and it does not specifically limit. In addition, the formation positions of the opening notch 8a, the score line 8b, the engagement projection 9, and the slit 10 are formed at predetermined positions by detecting alignment marks (tonches) simultaneously formed with the printing layer. Can.

  The semi-finished product of the packaging bag 1 manufactured as described above is set in a filling machine, and the remaining unsealed portion of one side (bottom portion) is used as a suction cup or opening jig in a state where the sealing portion 3 is held by a clamping device An opening unit such as a vacuum device is spread to form an opening, and a predetermined amount of content 6 is filled from the opening. Finally, the unsealed portion is heat-sealed to form the bottom seal portion 3b.

  The heat sealing method can be performed by a known method such as, for example, a bar seal, a rotating roll seal, a belt seal, an impulse seal, a high frequency seal, and an ultrasonic seal.

  Next, the method for opening the packaging bag 1 of the present embodiment and the method for taking out the contents 6 will be described. When the seal part 3 is torn along the incision line 8b from the opening notch 8a shown in FIG. 1, the tip of the measuring part 5 is cut off as shown in FIG. 3 to form the opening 5a, and the measuring part 5 is external It communicates with

  Next, the measuring unit 5 is bent toward the storage unit 4 from the state of FIG. 3 and the leading end of the measuring unit 5 having the opening 5a is inserted into the slit 10 as shown in FIG. Form the bent portion 5b. Since the dimension between the tips of the pair of engaging projections 9 formed at the tip of the measuring unit 5 is larger than the opening width L1 (see FIG. 1) of the slit 10, the tip of the measuring unit 5 is inserted into the slit 10 It is held in the state.

  And from the state of FIG. 4, the packaging bag 1 is turned upside down (inverted state). As a result, as shown in FIG. 5, the contents 6 in the storage unit 4 pass through the connecting unit 7 and flow into the measuring unit 5, and the space up to the bending unit 5 b of the measuring unit 5 is filled. In this state, as shown in FIG. 6, the connection portion 7 (the location of the mark 11) is pressed with one hand to shut off the communication between the storage portion 4 and the weighing portion 5.

  Finally, the tip of the measuring unit 5 is pulled out of the slit 10 with the other hand from the state of FIG. 6 above the place where the contents 6 are taken out. As a result, the measuring unit 5 which has been bent returns to the original shape, and as shown in FIG. 7, the content 6 which has been filled in the space from the connecting portion 7 to the bending portion 5b slips off and is taken out.

  As a result, only the contents 6 filled in the space from the connecting part 7 to the bending part 5b can be taken out, and a predetermined amount of the contents 6 can be easily measured and taken out. Further, only by adjusting the inner volume (inner size) of the measuring unit 5, it becomes possible to easily adjust the amount of taking out the contents 6 once. Furthermore, after taking out the content 6 of the predetermined amount, the packaging bag 1 which has been turned upside down (inverted state) is returned again to the original state (upright state), as shown in FIG. In the state of being inserted into the slit 10. As a result, since the measuring unit 5 is stored in a bent state, entry of foreign matter from the opening 5a can be prevented. In addition, since the weighing unit 5 is held in the state of being inserted into the slit 10 by the engagement between the engaging projection 9 and the slit 10, the contents 6 can be held from the opening 5a even when the packaging bag 1 falls during storage. There is no risk of leakage.

  The inner size of the measuring unit 5 may be appropriately changed according to the amount of taking-out of the contents 6 once, but if the inner size (passage width) in the width direction of the measuring unit 5 is too narrow The contents 6 will not be filled smoothly into 5. On the other hand, when the width of the measuring unit 5 is too wide, it becomes difficult to hold the connection between the storage unit 4 and the measuring unit 5 by hand. Accordingly, although depending on the particle size, bulk specific gravity, flowability, and the like of the contents 6, it is preferable that the inner dimension in the width direction of the measuring unit 5 be 10 mm to 120 mm. Further, the inner size of the storage portion 4 may be appropriately changed in accordance with the capacity of the content 6 to be stored.

  Also, by changing the position of the bending portion 5b formed in the measuring portion 5, it is possible to change the amount of one taking out of the contents 6 (the internal volume from the connecting portion 7 to the bending portion 5b) is there. Specifically, as shown in FIG. 8, a plurality of (here, three) slits 10 are formed at different positions of the wide seal portion 3, and the slit 10 into which the tip of the measuring portion 5 is inserted is selected. The formation position of the bending portion 5b (see FIG. 4) can be changed to change the internal capacity from the connecting portion 7 to the bending portion 5b in three stages.

  FIG. 9 is a plan view of the packaging bag 1 with a weighing function according to the second embodiment of the present invention, and FIG. 10 is a weighing section after the tip of the weighing unit 5 of the package 1 of the second embodiment is opened. It is a top view which shows the state which inserted the front-end | tip of 5 in the slit 10. FIG. Parts common to the first embodiment are assigned the same reference numerals and explanation thereof is omitted. In the present embodiment, the measuring unit 5 is linearly formed so as to project vertically upward from the storage unit 4. The materials and thicknesses of the surface side film 2a constituting the packaging bag 1 and the layers constituting the back surface side film 2b, the method of opening the packaging bag 1 and the method of taking out the contents 6 are the same as in the first embodiment.

  Also in the present embodiment, after the front end portion of the measuring unit 5 is opened as in the first embodiment, it is inserted into the slit 10 to form the bent portion 5b, and the space from the connecting portion 7 to the bent portion 5b is filled By taking out only the contents 6 thus taken, it becomes possible to easily measure and take out a certain amount of contents 6. In addition, after the packaging bag 1 is opened, leakage of the contents 6 from the opening 5a and entry of foreign matter can be prevented.

  Furthermore, in the present embodiment, since the weighing unit 5 is projected vertically upward from one end of the storing unit 4, the angle θ1 formed by the peripheral edge 4 a of the storing unit 4 continued to one side of the weighing unit 5 and the measuring unit 5 Is 90 °, and the angle θ2 between the periphery 4b of the storage unit 4 and the measurement unit 5 which are continuous to the other side of the measurement unit 5 is 180 °. Therefore, when the packaging bag 1 is turned upside down and the space from the connecting portion 7 to the bending portion 5b is filled with the contents 6, the contents 6 are easily dropped from the storage portion 4 to the weighing portion 5. Therefore, even if the content 6 is a powder with low flowability, the measurement unit 5 is not easily clogged during the filling, and the content 6 can be filled smoothly. If the peripheral edge 4a of the storage unit 4 is inclined upward to the left in FIG. 9, the content 6 in the storage unit 4 is more easily dropped because θ1 is larger than 90 ° in addition to θ2. It can be used up without leaving the contents 6.

  FIG. 11 is a plan view of the packaging bag 1 with a weighing function according to the third embodiment of the present invention, and FIG. 12 is a weighing section after the tip of the weighing unit 5 of the package 1 of the third embodiment is opened. It is a top view which shows the state which inserted the front-end | tip of 5 in the slit 10. FIG. Parts in common with the first and second embodiments are assigned the same reference numerals and explanation thereof is omitted. In the present embodiment, the measuring unit 5 is formed in an arc shape, and the tip end portion is curved in a direction approaching the slit 10. The material and thickness of each of the layers constituting the packaging bag 1 and the layers constituting the back film 2b, the method of opening the packaging bag 1, the method of taking out the contents 6, etc. are the same as in the first and second embodiments. It is.

  Also in this embodiment, by taking out the contents 6 in the same manner as in the first and second embodiments, it is possible to take out only the contents 6 filled in the space from the connecting part 7 to the bending part 5b. A certain amount of content 6 can be easily weighed and taken out. In addition, after the packaging bag 1 is opened, leakage of the contents 6 from the opening 5a and entry of foreign matter can be prevented.

  Furthermore, in the present embodiment, since the arc-shaped measuring unit 5 is curved in the direction in which the tip end approaches the slit 10, the projection angle of the measuring unit 5 protruding from the storage unit 4 becomes large. Therefore, when the packaging bag 1 is turned upside down and the content 6 is filled in the space from the connecting portion 7 to the bending portion 5b, the content 6 easily falls from the connecting portion 7 to the bending portion 5b. Therefore, as in the second embodiment, even if the content 6 is a powder having low fluidity, the measurement unit 5 is not easily clogged during the filling, and the content 6 can be filled smoothly. Further, by curving the measuring unit 5 in an arc shape, the dimension in the longitudinal direction of the packaging bag 1 can be suppressed to be smaller than that in the second embodiment.

  The packaging bag 1 of the present invention thus obtained has excellent properties such as easy-openability and manufacturability as packaging materials for powdered or granular foods such as seasonings and detergents. By having a weighing function to take out the objects, it is possible to provide a package with a weighing function which is remarkably improved in usability and cost.

  Others The present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the present invention. For example, an embodiment obtained by appropriately combining the technical means disclosed in each embodiment is also included in the technical scope of the present invention, and in the second and third embodiments as well as in FIG. A plurality of slits 10 are formed at different positions of the portion 3 and the formation position of the bending portion 5b is changed by selecting the slit 10 into which the tip of the measuring portion 5 is inserted, and the connecting portion 7 to the bending portion 5b It is possible to gradually change the internal capacity of the

  Further, in each of the above embodiments, the seal portion 3 for closing the peripheral edge of the measuring portion 5 is provided with a pair of engagement protrusions 9 projecting from both end edges of the seal portion 3 as engagement portions engaged with the slit 10 In place of the engagement protrusions 9, a pair of notches may be formed in the seal portion 3. In this case, the dimension between the valleys of the pair of notches may be made substantially the same as the opening length L1 of the slit 10.

  Moreover, in each said embodiment, although the notch 8a for opening was formed by I notch, it can replace with I notch and can also be made into a V notch or a U notch. Moreover, it may replace with the notch 8a for opening, and can also provide the scar group area | region which consists of several fine piercing holes in the seal | sticker part 3. FIG.

  The present invention is applicable to a packaging bag for packaging powdered or granular contents. By using the present invention, it is possible to measure the contents by a fixed amount each, and simplify the packaging bag with the weighing function which can suppress the leakage of the contents after opening and the entry of foreign matter without separately using the lid member and the sealing means. And it can be provided at low cost.

DESCRIPTION OF SYMBOLS 1 packaging bag 2a surface side film 2b surface side film 3 seal part 3a wide seal part 4 storage part 4a, 4b peripheral part 5 measurement part 5a opening part 5b bending part 6 contents 7 connection part 8a notch for opening (opening means)
8b Line of sight (opening method)
9 Engaging projection (engaging portion)
10 slit 11 mark 12 outer layer 14 inner layer

Claims (7)

A packaging bag formed of a laminate having at least an outer layer and an inner layer made of a heat adhesive resin,
A storage unit in which powdery or granular contents are enclosed;
A tubular measuring portion formed projecting from the storage portion and in communication with the storage portion;
A sealing portion for closing the periphery of the storage portion and the measuring portion;
A slit formed in a wide seal portion sandwiched between the storage portion and the measuring portion in the seal portion, and capable of inserting the tip of the measuring portion;
An opening means formed at the tip of the measuring unit;
I have a,
The tip of the measuring unit having the opening formed by the opening means is bent toward the storage unit and inserted into the slit to form a bent portion in the measuring unit, and the measuring unit is closer to the storage unit than the storage unit. by the orientation such that the lower, the contents of the storage portion flows into the metering unit, the weighing function packaging bag that will be a predetermined amount filled in the space until the bent portion.   The packaging bag according to claim 1, wherein the measuring portion is formed in an arc shape in which a tip end portion is curved in a direction approaching the slit.   The measuring unit is formed in a straight line, and an angle formed by the peripheral edge of the storage unit continuous to both sides of the measuring unit and the measuring unit is 90 ° or more. Packaging bag. The sealing portion closing the periphery of the measuring portion is formed with a pair of engaging portions engaging with the slit, and the unsealing means engages the engaging portion when the distal end of the measuring portion is opened. The packaging bag according to any one of claims 1 to 3, characterized in that at least a part of is formed at a position where it remains .   The packaging bag according to claim 4, wherein the engagement portion is a pair of engagement protrusions protruding from both end edges of the seal portion. A plurality of the slits are formed in the wide seal portion, and the formation position of the bent portion is changed by selecting the slit into which the distal end of the measuring portion is inserted, and the internal volume up to the bent portion is stepwise packaging bag according to any one of claims 1 to 5, characterized in changeable der Rukoto to.   The inner dimension of the width direction of the said measurement part is 10 mm or more and 120 mm or less, The packaging bag in any one of the Claims 1 thru | or 6 characterized by the above-mentioned.

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