JP2007331808A - Packaging bag with antiscattering spout of stored object - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent scattering of a stored object in a packaging bag with a spout to prevent scattering of the stored object which stores a powder or a particulate object or the like and is composed of a laminated film, when the stored object is repacked from a packaging bag. <P>SOLUTION: In the packaging bag with the spout to prevent scattering of the stored object in which the spout 12 is provided projectingly at the center position in the upper width direction by piling the front side and the back side of the laminated film and an upper opening knob sealing part, a left sealing part, a right sealing part, a left side sealing part and a right side sealing part are formed by heat-sealing the upper part of the spout, the right and left both ends 5, 6 of the spout and the lower part of the left and right outside front edge thereof with the sealant layer, a front and back covering film which cover the spout 12 are provided in one piece with the packaging bag with the spout. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a packaging bag with a spout for preventing stored items from being scattered, which is made of a laminated film that stores powder or granular materials. More specifically, the present invention relates to a packaging bag with a spout for preventing stored items from scattering when the stored items are refilled from the packaging bag.
Household items such as detergents, powdered bleach, cleansers, disinfectants, insecticides, fungicides, antibacterial agents, antibacterial agents, etc., gastrointestinal drugs consisting of powder or powder, colds Examples thereof include pharmaceuticals such as medicines, vitamins, and herbal medicines, and flours made of powder or powder, chemical seasonings, wasabi, yam, sesame, curry powder, shichimi pepper, potato starch and the like.

  In general, foods that consist of powder or granular materials, such as wheat flour, powdery, powdered powder, chemical seasonings, wasabi, yam, sesame, curry powder, savory chili, potato starch etc. Or in a plastic container.

  In use, a required amount is discharged from the inner lid with a small hole fitted to the mouth of the container and sprinkled.

  When the stored item in the container is consumed, the refill packaging bag is opened and the stored item is refilled into the container. Especially when the stored items are spices such as wasabi, yam, sesame seeds, curry powder, shichimi chili or other foods such as wheat flour, chemical seasoning, potato starch, and household products such as detergents, powder bleach, cleansers, etc. Plastic film packaging bags are often used for refilling.

  In this type of refill packaging bag, it is common to refill the contents of the packaging bag into the container while being applied to the mouth of the container. And when refilling, the situation which the spillage of the contents of a packaging bag will spill in mouths, such as a refill container, will generate | occur | produce.

  In order to prevent such a situation, a packaging bag provided with a spout on a refillable packaging bag is often used.

  Furthermore, as a prior art to which a function, a form, and the like that can easily refill a stored item from a refilling packaging bag with a spout into another container or the like, are disclosed in, for example, Patent Document 1 to Patent Document 3. Yes.

  As shown in FIG. 10, Patent Document 1 has a seal portion 105 in the periphery, and protrudes upward by providing a triangular lower cut-out portion 101 and an upper cut-out portion 102 at one upper corner. A spout 103 having a shape is formed.

  A shape retaining portion 108 is formed in the storage portion 104 below the upper cutout portion 102. By forming the shape-retaining portion 108, the packaging bag with the spout does not cause creases in the lower side of the upper cut-out portion 102 during pouring, and the filling speed does not decrease.

  Next, Patent Document 2 is a packaging bag 200 with a spout, in which a fused portion 117 of a spout member 112 is bonded to the upper left side surface of the packaging bag by thermal welding as shown in FIG.

The spout member 112 is provided with a fusion part 117 for heat-sealing to the base material of the spout-equipped packaging bag 200, a stored item spout passage 113, and an air introduction passage 115, so that seasonings, beverages, It is described that a liquid having a relatively low viscosity such as a medicine can be smoothly poured out.

  Further, as shown in FIG. 12, Patent Document 3 has a pouring means partially connected by a welded portion 122 covering the corner 124 in the region of the corner 124 of the packaging bag 300.

  And the said extraction | pouring means is the packaging bag 300 by which the flow path 121 which discharges | emits the package bag 300 smoothly is ensured by having the flow path 121 and the small pipe | tube 123 provided in this flow path 121. .

Prior art documents are shown below.
JP 2000-25797 A JP 2002-128102 A JP-A-5-132069

  By the way, none of the prior arts disclosed in Patent Documents 1 and 2 are liquids, and are not intended for solids such as powders or granular materials.

  For this reason, there exists a problem in applying the thing of the structure currently disclosed by patent document 1 thru | or patent document 2 to contents, such as a powder or a granular material, as it is.

  Moreover, when opening the spout of the shape which protruded above the plastic film packaging bag like patent document 1, if a plastic film is hard, a spout cannot be opened easily by hand.

  And you must use a scissors or a knife. For this reason, there is a problem that it takes time and is troublesome. Furthermore, the outlet portion is obstructive when the product is distributed or stored, which is not preferable for handling.

  Moreover, the packaging bag with a spout which provided the spout member in the packaging bag like patent document 2 must use the dedicated heat-sealing packaging machine which heat-seal | fuses a spout member to a packaging bag. And there is a problem that it is difficult to manufacture, and it is impossible to produce a uniform and stable quality packaging bag.

  Furthermore, a dedicated heat-sealing packaging machine must be used, and manufacturing becomes difficult and the cost is increased. And since the spout part becomes obstructive at the time of distribution, storage, etc. of a product, it is not preferred on handling.

  Moreover, in order to provide a small tube in a flow path like patent document 3, like the packaging bag of patent document 2, the apparatus for insertion of a small tube, its outer periphery, etc. are the exclusive heat-sealing packaging machines which thermally bond. Must be used. And it is difficult to manufacture, and it is impossible to produce uniform and stable quality packaging bags.

  Furthermore, as in Patent Document 2, a dedicated heat-sealing packaging machine must be used, and manufacturing becomes difficult, resulting in high costs. Further, there is a problem of damaging the surface or the like of the packaging bag by a small tube when it is packaged in a cardboard box and distributed.

  In addition, since the small spout is provided in the spout, there is a problem that clogging is likely to occur when the stored item is a solid content such as a powder or a granular material.

  Furthermore, since the packaging bag is a plastic film when the stored item is refilled, there is a problem that the stored item is scattered by the pressure of the hand holding the packaging bag.

The present invention has been made in view of the above-described conventional problems, and the problem is that the content is a packaging bag suitable for a solid content such as a powder or a granular material, and is easy and It can be manufactured at low cost, and is easy to handle at the time of distribution and storage of the product, can be easily opened, and can be refilled into a container smoothly without scattering. It is another object of the present invention to provide a packaging bag with a spout for preventing scattered items from being efficiently refilled.

In order to solve the above problems, the invention according to claim 1 of the present invention provides:
The sealant layers on the inner surface of the front side laminated film and the back side laminated film are overlapped, and a spout part protrudes at the center position in the upper horizontal width direction. A packaging bag with a spout in which the lower direction is heat-sealed with a sealant layer, and an upper opening knob seal portion, a left seal portion, a right seal portion, a left side seal portion and a right side seal portion are formed,
A packaging bag with a spout for preventing scattered items, wherein a front and back coating film covering the spout portion is provided integrally with the packaging bag with a spout.

Next, the invention according to claim 2 of the present invention is as follows.
2. The storage according to claim 1, wherein a notch for opening the spout is provided at one of the left seal portion and the right seal portion of the spout portion, or both of them, at a front end near the lower portion of the top opening seal portion. It is a packaging bag with a spout for preventing material scattering.

Next, the invention according to claim 3 of the present invention is
A half-cut line or a cut line connecting the notch for the outlet opening of the left seal part and the right seal part of the spout part is provided on one or both of the outermost surfaces of the front side laminated film and the back side laminated film. The packaging bag with spouts for preventing scattered items according to claim 1 or 2.

Next, the invention according to claim 4 of the present invention is
The upper opening picking seal part of the spout part is formed in a reverse concave shape, and is formed so as to be pickable when the spout is opened. It is a packaging bag with a spout for preventing scattered items.

Next, the invention according to claim 5 of the present invention is
The left seal portion has a shape that is inclined in a substantially curved shape from the left side of the packaging bag to the inside, and the right seal portion is formed in a shape that is inclined in a substantially curved shape from the right side of the packaging bag to the inside. The packaging bag with a spout for preventing scattered items according to any one of claims 1 to 4.

Next, the invention according to claim 6 of the present invention is
The packaging bag with spouts for preventing scattered items, wherein the shape of the packaging bag with spouts for preventing scattered items according to any one of claims 1 to 4 is a standing packaging bag.

Since the packaging bag with spout for preventing scattered items of the present invention has the above configuration, the protruding spout portion easily enters the mouth of a container or the like when refilling the stored items. And since the spout part is covered with the front and back coating film, the storage goods which consist of solid content, such as a powder or a granular material, can be refilled in another container, without scattering.

  In addition, since the packaging bag with spout for preventing scattered items of the present invention has the above-described configuration, the top of the spout portion can be easily picked with a finger when refilling the stored items. Moreover, opening can be easily performed with a slight force. And the storage thing which consists of solid content, such as powder or a granular material, can be refilled in a container, without scattering.

  Moreover, since the packaging bag with spout for preventing scattered items of the present invention has the above-described configuration, even if it is a packaged bag made of a hard plastic film, the opening of the upper part of the spout portion can be opened with a slight force. Can be opened easily.

  Moreover, since the packaging bag with a spout for preventing scattered items of the present invention has the above-described configuration, the manufacturing of the packaging bag with a spout for preventing scattered items can be easily performed by a known bag making machine or the like. In addition, a packaging bag with a spout for preventing scattered items of high quality can be stably produced at low cost.

  In addition, since the packaging bag with spout for preventing scattered items of the present invention has the above-described configuration, the spout does not get in the way during the distribution and storage of the product and is easy to handle.

  In addition, since the packaging bag with spout for preventing scattered items of the present invention has the above-described configuration, the stored item does not stagnate in the storing portion of the packaging bag and is quickly introduced into the spout. And refilling work can be performed efficiently in a short time.

  In addition, since the packaging bag with spout for preventing scattered items of the present invention has the above configuration, the upper end of the spout is inserted into the opening of the container after opening, and the packaging bag is turned upside down. Then, the stored items can be refilled smoothly and efficiently in a short time, and further, the stored items will not be scattered or spilled.

  In addition, since the packaging bag with spout for preventing scattered items of the present invention has the above-described configuration, deformation and breakage of the packaging bag during product distribution and storage can be prevented. In particular, since the spout portion is covered with the front and back coating films, the spout portion is not damaged at all. And the space part used as a spout after opening can be protected.

  In addition, since the packaging bag with spout for preventing scattered items of the present invention has the above-described configuration, the opening notch or the cut line of the spout portion can be made simultaneously with the bag making by a known bag making machine. For this reason, the manufacturing process is simplified. And it becomes possible to reduce cost.

  Moreover, since the packaging bag with a spout for preventing scattered items of the present invention has the above-described configuration, the stored item is hardly clogged in the space serving as a spout when refilling after opening. And it can refill efficiently smoothly in a short time, without the stored thing scattering with respect to a container.

A packaging bag with a spout for preventing scattered items of the present invention will be described in detail below in accordance with an embodiment with reference to the drawings.
The packaging bag with spout for preventing scattered items of the present invention is a two-sided or three-sided seal, a four-sided seal, a side seal or an envelope-attached seal, a flat seal such as a seam-attached seal, a boat bottom seal, etc. The bottom of the front and back side of a self-supporting packaging bag with a rectangular flat bottom on the bottom, with the lower part of the packaging bag, such as a three-side seal or four-side seal, with side seals etc. It may be a bag in a packaging form such as a self-standing packaging bag (standing pouch) having a gusset portion inside.

  And by forming a spout part protruding from the top of the bag and applying a front and back coating film that covers the spout part, the stored goods are prevented from scattering when refilled into another container etc. can do.

  FIG. 1: is a top view which shows the plane of one Example of the packaging bag with a spout for the stored matter scattering prevention of this invention. FIG. 2 is a cross-sectional view showing a cross section taken along line AA ′ of FIG. Moreover, FIG. 3 is a top view which shows the plane of one Example of the main body packaging bag of the packaging bag with a spout for a stored item scattering prevention of this invention. 4 is a cross-sectional view showing a cross section taken along line BB ′ of FIG.

  As shown in FIG. 1 and FIG. 2, the packaging bag with spout for preventing scattered items of the present invention has a front side laminated film 1 and a back side laminated film 2, and a spout part 12 protruding from the center in the upper lateral direction. Is formed. And it is comprised from the front and back coating | cover film 14 which covers a main body packaging bag and the spout part 12 as shown in FIG.

  As shown in FIG. 1 or FIG. 3, the main body packaging bag is provided with a pouring portion protruding in a curved shape so as to be symmetrical with respect to the packaging bag longitudinal center line O.

  The extraction portion 12 is formed of a left seal portion 5, a right seal portion 6, and an upper opening knob seal portion 7. In each seal portion, the sealant layer 3 on the inner surface of the front laminated film 1 and the sealant layer 4 on the inner surface of the back laminated film 4 are heat sealed.

  The left seal portion 5 is formed in a shape that is inclined in a substantially curved manner inward from the left side of the packaging bag. Moreover, the right seal part 6 is formed in the shape which inclines in a substantially curved shape inside from the right side side of a packaging bag.

  And the upper front-end | tip of the left seal part 5 and the right seal part 6 is connected with the upper opening picking seal part 7 formed in reverse concave shape. And the notch part 11 is formed in the outer front end of the seal part where the upper opening knob seal part 7 is connected to the left seal part 5 and the right seal part 6.

  The notch portion may be provided at either the outer end of the left seal portion 5 or the outer end of the right seal portion 6. It is preferable to provide notches 11 at the tips of the left and right seal portions 5 and 6.

  Further, in order to make the opening 11 of the spout portion 12 easy by picking the top opening pick seal portion 7 by hand, a half-cut line connecting the notch portions 11 provided at both ends of the left and right seal portions 5 and 6, or half A score can also be provided. The half cut line and the half score line may be either one of the front side laminated film 1 and the back side laminated film 2, but it is preferable to provide them on the front and back laminated films 1 and 2.

  The shape of the notch 11 is not particularly limited, such as a V-shaped notch, a U-shaped notch, or an I-shaped notch, but a V-shaped notch is desirable for easy opening.

  The lower part of the left seal part 5 is connected and sealed to the left side seal part 8 of the main body packaging bag 10 and the lower part of the right seal part 6 is connected to the right side seal part 9 of the main body packaging bag 10.

  In the left side seal portion 8, the sealant layer 3 on the inner surface of the front laminated film 1 and the sealant layer 4 on the inner surface of the back laminated film 2 are heat sealed. Similarly, the sealant layer 3 on the inner surface of the front laminated film 1 and the sealant layer 4 on the inner surface of the back laminated film 2 are heat-sealed in the right side seal portion 9.

  Next, in the packaging bag with spout for preventing scattered items of the present invention, the front and back cover films 14 covering the spout portion 12 of the main body packaging bag 10 are laminated on the outer side and the back side of the front side laminated film 1 of the main body packaging bag 10. It is provided on the outer surface of the film 2. And the width | variety both ends of the inner surface of the front and back coating film 14 are heat-sealed.

  Further, a part in the lower direction in which both ends of the width of the inner surface of the covering film 14 are heat-sealed is both outer side ends of the front side laminated film 1 of the main packaging bag 10 and both outer side faces of the back side laminated film 2. Bonded at the top of the tip side seal.

  Furthermore, the width direction of the lower part of the front and back coating film 14 is bonded to the outer side surface of the front side laminated film 1 and the outer side surface of the back side laminated film 2.

  Moreover, the upper part of the front and back coating film 14 is formed above the spout 13 of the main body packaging bag 10. And adhesion of the front and back coating film 14 which covers the spout part 12 of the main body packaging bag 10 is not shown in the drawing, but can be processed simultaneously when the main body packaging bag 10 is produced by a known bag making machine.

  Moreover, after producing the main body packaging bag 10, the front and back coating | cover film 14 which covers the spout part 12 can also be adhere | attached. And the front and back coating film 14 which covers the spout part 12 of the main body packaging bag 10 may not be a film or a sheet-like thing, for example, may be a tube-like thing.

  Next, FIG. 5 is a plan view showing a plane of another embodiment of the packaging bag with spout for preventing scattered items of the present invention. 6 is a cross-sectional view showing a cross section taken along the line CC ′ of FIG.

  As shown in FIGS. 5 and 6, the front side laminated film 1 and the back side laminated film 2 of the main packaging bag 20 are formed from the same single laminated film. And the bottom part 16 forms the bending part 15 in the reverse V shape in the width direction, both ends of the inner surfaces 3 and 4 of the front side laminated film 1 and the back side laminated film 2 are heat-sealed, and the left side seal part 8 and the right side seal Part 9 is formed.

  As shown in FIG. 5, the upper portion of the main body packaging bag 20 is provided with a pouring portion protruding in a curved shape so as to be symmetrical with respect to the packaging bag longitudinal center line O.

  The extraction portion 12 is formed with a left seal portion 5 and a right seal portion 6. In each of the seal portions 5 and 6, the sealant layer 3 on the inner surface of the front-side laminated film 1 and the sealant layer 4 on the inner surface of the back-side laminated film 4 are heat-sealed.

  The left seal portion 5 is formed in a shape that is inclined in a substantially curved manner inward from the left side of the packaging bag. Moreover, the right seal part 6 is formed in the shape which inclines in a substantially curved shape inside from the right side side of a packaging bag.

  The upper ends of the left seal portion 5 and the right seal portion 6 are shown in FIG. 1 (a) or FIG. 2 (a) after the stored item is filled in the packaging bag with the spout for preventing stored item scattering according to the present invention. Thus, the upper opening knob seal portion 7 is formed in a reverse concave shape.

  As shown in FIG. 1 or FIG. 3, a notch portion 11 is formed at the outer end of the seal portion where the upper opening knob seal portion 7 is connected to the left seal portion 5 and the right seal portion 6.

  In addition, the main body packaging bag 20 described above is produced by unwinding a single laminated film 17 placed on the unwinding portion 18 as shown in FIG. Then, the film 17 is half-folded by the triangular plate 19. Further, the bottom portion 16 is folded into an inverted V shape by the folding guide plate 21.

  Next, after the bottom portion 16 is folded into an inverted V shape, the left seal portion 5 and the right seal portion of the spout portion 12 are formed by the heat seal heating plate 22 formed in the outer peripheral shape of the outer side of the main body packaging bag 20. 6 and the left side seal part 8 and the right side seal part 9 are heat-sealed simultaneously. And it cuts and the main body packaging bag 20 is produced with a well-known bag making processing machine.

  Although the main body packaging bag 20 is not shown in the drawing, in addition to the bag making method described above, the front side laminated film 1, the back side laminated film 2, and a tape member folded in an inverted V shape on the bottom portion 16 are used. It can also be produced.

  Further, as shown in FIG. 7, a single laminated film 17 is unwound, and the film 17 is half-folded with a triangular plate 19, and at the same time, the half-folded portion is cut and separated with a knife or the like. It can also be produced by inserting a tape member folded in an inverted V shape on the inner surface.

  Further, in the packaging bag with spout for preventing scattered items of the present invention, the front and back coating films 14 covering the spout portion 12 of the main body packaging bag 20 are the outer side surface and the back side laminated film of the front side laminated film 1 of the main body packaging bag 20. 2 is provided on the outer surface. And the width | variety both ends of the inner surface of the front and back coating film 14 are heat-sealed.

  Moreover, the width | variety both front-end | tips of the inner surface of the said front and back coating film 14 are heat-sealed, and the part on the both-ends side seal part of the outer surface of the upper front side laminated film 1 of the main body packaging bag 20 and the outer side surface of the back side laminated film 2 Are adhered on the side seal portions at both ends.

  Furthermore, the width direction of the lower part of the front and back coating film 14 is bonded to the outer side surface of the front side laminated film 1 and the outer side surface of the back side laminated film 2.

  And adhesion of the front and back coating film 14 which covers the spout part 12 of the main body packaging bag 20 is not shown in the drawing, but can be processed simultaneously when the main body packaging bag 20 is produced by a known bag making machine.

  Moreover, after producing the main body packaging bag 20, the front and back coating film 14 which covers the spout part 12 can also be adhere | attached. And the front and back coating film 14 which covers the spout part 12 of the main body packaging bag 20 may not be a film or a sheet-like thing, for example, may be a tube-like thing.

  Next, as shown in FIG. 8, the main body packaging bags 10 and 20 of the packaging bag with spout for preventing stored items of the present invention have at least an outermost film base material layer 24, an innermost sealant layer 26, and Is laminated with an adhesive layer 25 to form a laminated film 27.

  And in order to adhere the front and back coating film 14 which covers the spout part 12 of the main body packaging bags 10 and 20, and the film base material 24 of the outermost layer of the main body packaging bags 10 and 20, it consists of a heat seal lacquer or a heat seal resin. A seal layer 23 is formed.

As the resin for the seal layer 23, a polyester-based, polyolefin-based, urethane-based, or vinyl chloride copolymer-based resin is appropriately selected and used depending on the resin constituting the front and back coating film 14.

  In addition, as the heat seal lacquer used for the seal layer 23, for example, a resin in which a thermoplastic polymer such as ethylene vinyl acetate, vinylidene chloride, chlorinated polyolefin, polyamide, acrylic or the like is used alone or as a base resin is used. The fixing portion can also be formed by coating on the outer surface of the base film and further drying.

  For the coating of the heat seal lacquer or the like, a coating machine such as a roll coater, air knife coater, gravure coater, metering bar coater, fountain blade coater, bevel blade coater, short dwell coater or curtain coater is used. . The heat seal lacquer or the like may be provided only on the entire outer surface of the base film or on a portion necessary for sealing using any appropriate coating machine.

The thickness of the seal layer 23 ranges from 3 to 15 g / m ² when the seal layer 23 is formed of a heat seal lacquer, and 3 to 15 μm when the seal layer 23 is formed of a heat sealable resin. preferable.

  Examples of the material of the outermost film base layer 24 include polyesters such as polyethylene terephthalate (PET), polyethylene naphthalate (PEN), and polybutylene terephthalate (PBT), polyethylene (PE), and polypropylene (PP). , Polyolefin such as polystyrene (PS), polyamide (PA) such as nylon-6 and nylon-66, polycarbonate (PC), polyacrylonitrile (PAN), polyimide (PI), polyvinyl chloride (PVC), polyvinylidene chloride ( Use stretched or unstretched films or sheets such as PVDC), polyvinyl alcohol (PVA), ethylene-vinyl alcohol copolymer (EVOH), polyether sulfone (PES), polymethyl methacrylate (PMMA), etc. Door can be.

  Further, the base film layer 24 is a subsidiary material depending on required quality, resistance, use conditions, etc., for example, a stabilizer such as a plasticizer or an antioxidant, an ultraviolet absorber, an inorganic pigment, an organic pigment, Additives such as surfactants, anti-aging agents, mold release agents, and dyes can be added. And it adds suitably as needed.

  Further, the above-mentioned auxiliary materials are usually known ones. For example, when coloring a base film layer, a colored pellet (colored pellet), a masterbatch, a dry color, etc. are used.

  The master batch is obtained by dispersing a pigment in a high concentration in the same kind of material as the resin to be colored, and is widely used because it is easy to measure and handle.

  The dry color is obtained by surface-treating a powdery material to improve dispersibility, and is used for polyethylene (PE), polystyrene (PS), polyamide (PA) acrylic resin, and the like.

  Furthermore, since the plastic used for the base film layer 24 is generally very excellent in electrical insulation, charging easily occurs when it is rubbed or overlapped. As a result, dust adheres to the aesthetic appearance, and when refilling the stored items, scattered objects adhere, and an electric shock is given to the worker at the manufacturing site, sometimes causing a fire.

An antistatic agent is used to prevent this. And in the selection, the difference in the content accommodated in a packaging bag, resin used for a laminated film, lamination conditions, etc. is considered.

  Moreover, there are a kneading type and a coating type as a method of use, but the kneading type is superior in sustaining the prevention effect. As the known antistatic agent, nonionic and cationic ones are mainly used.

In addition, ultraviolet absorbers are used to absorb ultraviolet (light below 400 nm) energy, consume it for internal changes in the absorbent molecules, and do not give energy to the polymer. Surface modification such as corona discharge treatment and anchor coating treatment can be performed on the surface to improve adhesion with a sealant layer and the like described later.

Further, it is desirable to form a beautiful print layer on the front or back surface of the base film layer 24 as necessary for the purpose of improving the sales promotion effect of the product.
As the printing ink for forming the printing layer, a color material composed of a pigment or a dye that gives color to the ink, a resin that adheres to the printing medium while dispersing and holding the color material in fine particles, and the resin are used. A vehicle composed of a solvent that can stably dissolve, disperse the pigments and dyes, maintain the fluidity of the ink, and transfer an appropriate amount of ink from the printing plate, and further disperse the coloring material. The pigment is formed from an auxiliary agent such as a surfactant for the purpose of improving color development, preventing precipitation, and improving fluidity. In particular, the colorant is preferably a pigment having good weather resistance.

  The printing method for providing the printing layer is not particularly limited as long as it is a printing method capable of printing on the film base material layer, but a base is formed by performing copper plating on the surface of an iron cylinder (cylinder). Then, a release layer is provided on the copper plating surface.

  Further, copper plating is performed, and a concave surface (cell) is created by a sculpture method or a corrosion method on a copper surface whose surface is mirror-polished, and printing ink in the cell is applied to the film base layer (12). It can be transferred and colorfully printed even on tones. And the gravure printing method with high appeal effect is preferable.

  The thickness of the film base layer 24 is preferably in the range of 3 to 200 μm, more preferably in the range of 6 to 30 μm, in consideration of processability.

  Next, the innermost sealant layer 26 includes, for example, a low density polyethylene resin (LDPE), a medium density polyethylene resin (MDPE), a high density polyethylene resin (HDPE), and a linear low density polyethylene resin (L-LDPE). , Polypropylene resin (PP), ethylene-propylene copolymer (EP), ethylene-α olefin copolymer, ethylene-acrylic acid copolymer (EAA), ethylene-methacrylic acid copolymer (EMAA), ethylene-methacrylic A resin such as an acid ester copolymer, an ethylene-acrylic acid ester copolymer, an ionomer resin, an ethylene-vinyl acetate copolymer (EVA), or a film obtained by forming a film of these resins can be used.

  The thickness of the sealant layer 26 is preferably in the range of 15 to 200 μm, more preferably in the range of 30 to 170 μm, in consideration of strength and workability.

Next, a method of forming a front side laminated film and a back side laminated film obtained by laminating an outermost film base material layer 24 and an innermost sealant layer 26 via an adhesive layer 25 is, for example, a dry lamination method, Known methods such as a non-solvent dry lamination method, a hot melt lamination method, an extrusion lamination method, and a sandwich lamination method using the extrusion lamination method can be used.

  For example, the dry lamination method includes three sections: a coating unit that applies an adhesive on a film, a drying device, and a nip roller unit, and an unwinding, winding, and tension control system.

  The coating portion generally employs a gravure roll coating method or a reverse roll coating method.

  As the adhesive used in the dry lamination method, laminate adhesives such as polyurethane, polyacrylic, polyester, epoxy, polyvinyl acetate, cellulose, and the like can be generally used.

  As the lamination adhesive, a solvent-type adhesive or a solvent-free adhesive is used. However, when a solvent-free adhesive is used, a drying apparatus is unnecessary, and in particular, a non-solvent dry lamination method and I'm calling.

  The hot melt lamination method is a method in which a hot melt adhesive such as a heat-melted ethylene-vinyl acetate copolymer (EVA) is applied onto a film, and another film is immediately laminated.

  In the extrusion lamination method, a thermoplastic resin such as polyethylene or polypropylene is heated, dissolved in a cylinder called a cylinder, and extruded by applying pressure with a screw.

  Then, a resin dissolved in a curtain shape is extruded from a thin slit called a T die at the tip of the cylinder and laminated into a film shape.

  At this time, using the extrusion lamination method, the outermost film base material layer 24 and the innermost sealant layer 26 are laminated by using a thermoplastic resin such as polyethylene resin or polypropylene resin instead of an adhesive. A sandwich lamination method can also be used.

  Further, when it is necessary to improve the drop strength, puncture strength, and gas barrier properties of the main packaging bags 10 and 20, an intermediate layer can be interposed between the base film layer 24 and the sealant layer 26.

  And in order to improve the gas barrier property of the laminated | multilayer film which comprises the main body packaging bags 10 and 20 of the packaging bag with a spout for the stored matter scattering prevention of this invention like an aluminum foil, of inorganic compounds, such as aluminum oxide and silicon oxide, An inorganic compound vapor-deposited plastic film in which a thin film is formed to a thickness of about 20 to 100 nm by a vapor deposition method such as physical vapor deposition or chemical vapor deposition can also be used.

  Further, the intermediate layer 37 is provided to increase the bag breaking strength. Generally, from the viewpoint of mechanical strength and thermal stability, the intermediate layer 37 includes a biaxially stretched nylon film, a biaxially stretched polyethylene terephthalate film, and a biaxially stretched polypropylene film. Chosen from.

  And although thickness is decided according to a material, required quality, etc., generally it is the range of 10-30 micrometers. As a forming method, lamination can be performed by a known method such as a dry laminating method in which an adhesive such as a two-component curable urethane resin is used.

  The heat seal layer 38 is provided as an adhesive layer when forming a packaging bag or the like. Any resin can be used as long as it is heat-fusible. For example, polyethylene, polypropylene, ethylene-vinyl acetate copolymer, ethylene-methacrylic acid copolymer, ethylene-methacrylic acid ester copolymer, ethylene-acrylic acid copolymer. Resins such as polymers, ethylene-acrylic acid ester copolymers, and metal cross-linked products thereof are used.

  And although thickness is decided according to the objective, generally it is the range of 15-200 micrometers. Moreover, as a forming method, it is common to use a dry laminating method or the like in which a film-like material made of the above resin is bonded using an adhesive such as a two-component curable urethane resin. Can be stacked.

  Next, as the front and back coating film used in the present invention, for example, low density polyethylene, medium density polyethylene, high density polyethylene, cotton-like low density polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer , Ionomer resin, ethylene-ethyl acrylate copolymer, ethylene-acrylic acid or methacrylic acid copolymer, methyl pentene polymer, polybutene resin, polyvinyl chloride resin, vinyl chloride-vinyl chloride copolymer, poly (meth) Acrylic resin, polyacrylonitrile resin, polystyrene resin, acrylonitrile-styrene copolymer (AS resin), acrylonitrile-butadiene-styrene copolymer (ABS resin), polyester resin, polyester resin, polyamide system Fat, polycarbonate resin, polyvinyl alcohol resin, saponified ethylene-vinyl acetate copolymer, diene resin, polyacetal resin, polyurethane resin, nitrocellulose, other known resin films or sheets, or a single layer or laminate It can be arbitrarily selected and used. In addition, for example, a film or sheet such as cellophane, paper, aluminum foil, synthetic paper, or a single body or a laminate can be used depending on the contents.

  And when refilling, in order to see the periphery of the spout, a transparent film or sheet alone or a laminate is preferred. Various known additives and stabilizers such as an antistatic agent, an ultraviolet ray preventing agent, a plasticizer, and a lubricant may be used in the film or sheet alone or in a laminate.

  The film or sheet may be any of unstretched, uniaxially or biaxially stretched. The thickness is arbitrary, but can be appropriately selected from a range of several μm to 100 μm.

  As a method of laminating the film or sheet, a lamination method used when producing a normal packaging material, for example, a wet lamination method, a sandwich lamination method, a dry lamination method, a thermal lamination method, a solventless lamination method, There are an extrusion lamination method, a T-die extrusion molding method, a T-die co-extrusion lamination method, an inflation method, a co-extrusion inflation method, and the like.

  Further, when laminating, a film or sheet is subjected to treatment such as corona treatment, ozone treatment or frame treatment in order to improve adhesion.

  In addition, when the resin is laminated on the base film or sheet, for example, an anchor coating agent such as polyethyleneimine, polybutadiene, or organic titanium, or polyurethane, polyacryl, polyester, epoxy, poly, Known anchor coating agents such as vinyl acetate and cellulose, adhesives, and the like can be arbitrarily used.

  In addition, when the seal layer is not formed on the outer side of the front side laminated film and the outer side of the back side laminated film on which the main body packaging bag is formed, the main body packaging bag and the inner side surface of the front and back coating film covering the spout part of the main body packaging bag A sealing layer for bonding can be formed. The seal layer is formed from a heat seal lacquer or a heat sealable resin.

  As the resin for the sealing layer, a polyester-based, polyolefin-based, urethane-based, or vinyl chloride copolymer-based resin is appropriately selected and used depending on the resin constituting the coating film.

  In addition, the heat seal lacquer used for the seal layer is based on a base resin in which a thermoplastic polymer such as ethylene vinyl acetate, vinylidene chloride, chlorinated polyolefin, polyamide, acrylic or the like is used alone or in combination. The fixing portion can be formed by coating on the outer surface of the material film and further drying.

  For the coating of the heat seal lacquer or the like, a coating machine such as a roll coater, air knife coater, gravure coater, metering bar coater, fountain blade coater, bevel blade coater, short dwell coater or curtain coater is used. . The heat seal lacquer or the like may be provided only on the entire outer surface of the base film or on a portion necessary for sealing using any appropriate coating machine.

The thickness of the seal layer is preferably in the range of 3 to 15 g / m ² when the seal layer is formed of a heat seal lacquer and 3 to 15 μm when the seal layer is formed of a heat sealable resin.

Moreover, a printing layer can also be formed on the inner surface of the film or sheet. The printing layer is formed by a gravure printing method, a flexographic printing method, a screen printing method, a plate gravure printing method, or the like.
The printing ink for forming the printing layer includes a color material composed of a pigment or a dye that gives color to the ink, and a resin that adheres to the substrate while dispersing and holding the color material in fine particles.
A vehicle comprising a solvent that can stably dissolve the resin, maintain dispersibility of the pigment or dye, fluidity of ink, and transfer an appropriate amount of ink from a printing plate.
Furthermore, it is formed from an auxiliary agent such as a surfactant for the purpose of improving dispersibility, coloring property, preventing precipitation, and improving fluidity of the coloring material. In particular, the coloring material is preferably a pigment having good weather resistance.

  The organic solvent that stably dissolves the resin is not particularly limited as long as it can dissolve or disperse the resin. For example, esters such as ethyl acetate and butyl acetate, methyl ethyl ketone, Among ketones such as methyl isobutyl ketone and aromatic hydrocarbons such as toluene and xylene, those which are singly or arbitrarily blended can be used.

  The packaging bag with spout for preventing scattered items of the present invention is an excellent packaging bag with spout for preventing scattered items that can prevent the stored items from scattering when the stored items are refilled into other containers. This is a wonderful invention that can be used not only for production lines in the confectionery and bakery fields.

It is a top view which shows the plane of one Example of the packaging bag with a spout for the stored matter scattering prevention of this invention. It is sectional drawing which shows the cross section of the AA 'line of Fig.1 (a). It is a top view which shows the plane of one Example of the main body packaging bag of the packaging bag with a spout for prevention of scattered items of the present invention. It is sectional drawing which shows the cross section of the BB 'line | wire of FIG. It is a top view which shows the plane of other one Example of the packaging bag with a spout for the stored matter scattering prevention of this invention. It is sectional drawing which shows the cross section of the CC 'line | wire of FIG. It is explanatory drawing for demonstrating the manufacturing method of the main body packaging bag of other one Example of the packaging bag with a spout for stored goods scattering prevention of this invention. It is sectional drawing which shows the cross section of one Example of the material structure of the main body packaging bag of the packaging bag with a spout for the stored matter scattering prevention of this invention. It is a schematic explanatory drawing explaining an example of the conventional packaging bag with a spout for prevention. It is a schematic explanatory drawing explaining an example of the conventional packaging bag with a spout for prevention. It is a schematic explanatory drawing explaining an example of the conventional packaging bag with a spout for prevention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Front side laminated film 2 ... Back side laminated film 3 ... Front side laminated film inner surface sealant layer 4 ... Back side laminated film inner surface sealant layer 5 ... Left seal part 6 ... Right seal part 7 ... Upper opening knob part 8 ... Left side seal part 9 ... Right side seal part 10 ... Main body packaging bag 11 ... Notch part 12 ... Outlet part 13 ... Outlet 14 ... Front / back cover film 15 ... Bending part 16 ... Bottom part 17 ... Laminated film 18 ... Unwinding part 19 ... Triangle plate 20 ... Main body packaging Bag 21 ... Folding guide 22 ... Heat seal part 23 ... Seal layer 24 ... Base film 25 ... Main body packaging bag 26 ... Main body packaging bag 27 ... Front side laminated film and back side laminated film 30 ... Front side laminated film and back side laminated film

Claims (6)

The sealant layers on the inner surface of the front side laminated film and the back side laminated film are overlapped, and a spout part protrudes at the center position in the upper horizontal width direction. The top part of the spout part, the left and right end parts of the spout part, and the right and left outer ends A packaging bag with a spout in which the lower direction is heat-sealed with a sealant layer, and an upper opening knob seal portion, a left seal portion, a right seal portion, a left side seal portion and a right side seal portion are formed,
A packaging bag with spout for preventing scattered items, wherein a front and back coating film covering the spout portion is provided integrally with the packaging bag with spout.   2. The storage according to claim 1, wherein a notch for opening the spout is provided at one of the left seal portion and the right seal portion of the spout portion, or both of them, at a front end near the lower portion of the top opening seal portion. Packing bag with spout for preventing scattering of objects.   A half-cut line or a cut line connecting the notch for the outlet opening of the left seal part and the right seal part of the spout part is provided on one or both of the outermost surfaces of the front side laminated film and the back side laminated film. The packaging bag with a spout for preventing scattered items according to claim 1 or 2.   The upper opening picking seal part of the spout part is formed in a reverse concave shape, and is formed so as to be pickable when the spout is opened. Packaging bag with spout for preventing scattered items.   The left seal portion has a shape that is inclined in a substantially curved shape from the left side of the packaging bag to the inside, and the right seal portion is formed in a shape that is inclined in a substantially curved shape from the right side of the packaging bag to the inside. The packaging bag with a spout for preventing scattered items according to any one of claims 1 to 4.   5. A packaging bag with spouts for preventing scattered items, wherein the shape of the packaging bag with spouts for preventing scattered items according to any one of claims 1 to 4 is a standing packaging bag.

Images