JP2020132234A - bag - Google Patents

Abstract

To provide a bag which is easy to open.SOLUTION: A bag comprises a first film, a second film, a first side part seal part and a second side part seal part, a first member having a first joint part and a first fitting part, a second member having a second joint part and a second fitting part, and a breaking mechanism. A part, positioned between the first side part seal part and second side part seal part, of the first member is not joined to the second film. The breaking mechanism comprises: a pair of cutting part half-cut lines positioned at the first film, and extending from a first side part seal part side to a second side part seal part side; a tab part being positioned at the first side part seal part, and including the first film, first member and second film, the tab part including a base part positioned between the pair of cutting part half-cut lines; and a penetration part which includes one end and the other end which penetrate the first film, first member and second film at the first side part seal part, and connected to the base part of the tab part.SELECTED DRAWING: Figure 1

Description

The present invention relates to a bag having an easy-to-open property.

Bags with a breaking mechanism for opening are known. For example, the bag disclosed in Patent Document 1 is formed by stacking a film having a thermosetting resin layer on the inner surface. Further, a first cut line and a second cut line are provided on the base material layer above the film on the front surface side and the film on the back surface side, respectively. The first cut line is vertically offset from the second cut line, at least in the center.

By cutting the bag formed in this way along the first cut line and the second cut line, the cut ends of the film on the front surface side and the film on the back surface side are shifted up and down. As a result, the cut end of the film on the front surface side and the cut end of the film on the back surface side can be easily gripped, and opening and closing can be facilitated.

Japanese Unexamined Patent Publication No. 2016-8066

When the bag described in Cited Document 1 is cut, the film on the front surface side and the film on the back surface side are torn and opened at the same time, so that the resistance at the time of tearing is often increased.

An object of the present invention is to provide a bag having an easy-to-open property.

The present invention is a bag provided with an accommodating portion for accommodating the contents, and is a first film constituting the first surface of the bag and a second film constituting the second surface facing the first surface. The first film, which defines the accommodating portion between the first film and the first film, extends along the outer edge of the bag and faces each other, and joins the first film and the second film. It has a side seal portion and a second side seal portion, a first joint portion joined to the inner surface of the first film, and a first fitting portion located so as not to overlap the first joint portion. A second member having a first member, a second joint portion bonded to the inner surface of the first film, and a second fitting portion capable of fitting the first fitting portion, and the first member. A breaking mechanism for breaking the first film at a position between the joint portion and the second joint portion is provided, and the first joint portion, the first fitting portion, and the first fitting portion of the first member are provided. The second fitting portion and the second joint portion of the two members each extend from the first side portion seal portion to the second side portion seal portion, and the first side portion seal of the first member. The portion located between the portion and the second side portion sealing portion is not bonded to the second film, and the breaking mechanism is located on the first film and is located on the first side portion sealing portion side. A pair of cut half-cut lines extending from the second side seal portion side, and a knob portion located on the first side seal portion and including the first film, the first member, and the second film. The first film, the first member, and the second film are penetrated in the knob portion including the base portion located between the pair of the cut portion half-cut lines and the first side portion seal portion. A bag comprising a penetrating portion including one end and the other end connected to the base portion of the knob portion.

In the bag according to the present invention, the breaking mechanism may be located on the second film on the accommodating portion side of the knob portion and may include a tear prevention portion half-cut line that crosses the pair of the cut portion half-cut lines. ..

In the bag according to the present invention, the tear-preventing portion half-cut wire may be located at the first side seal portion, penetrate the second film, and reach the first member.

In the bag according to the present invention, both the first film and the second film include a thermoplastic resin layer constituting the surface on the content side, and the thermoplastic resin layer and the second film of the first film. Each of the thermoplastic resin layers may contain polyethylene or polypropylene as a main component.

The bag according to the present invention may further include a third film that is located between the first film and the second film and constitutes the lower part of the bag.

The bag according to the present invention contains the first film and the second film, and when the contents contained in the accommodating portion are poured out between the first film and the second film. A spout port may be further provided to form a flow path through which the contents flow.

According to the present invention, it is possible to provide a bag having an easy-to-open property.

It is a front view which shows the bag in embodiment of this invention. It is sectional drawing which shows an example of the layer structure of a laminated body. It is sectional drawing which shows another example of the layer structure of a laminated body. FIG. 5 is a cross-sectional view showing a case where the bag shown in FIG. 1 is viewed along the IV-IV line. It is sectional drawing which shows the case which the bag shown in FIG. 1 is seen along the VV line. It is a partial cross-sectional view which shows an example of the layer structure of the laminated body and the form of the cut part half-cut line in the vicinity of the cut part half-cut line. It is a front view which shows the vicinity of the tear prevention part and the tear grip part of the bag shown in FIG. 1 in an enlarged manner. It is a back view which shows the case which the part shown in FIG. 7 is seen from the 2nd film side. It is a figure which shows a part of the manufacturing process of a bag. It is a figure which shows a part of the manufacturing process of a bag. It is a front view which shows the bag in the state which the upper part is sealed. It is sectional drawing which shows the case where the bag shown in FIG. 11 is seen along the line XII-XII. It is a perspective view which shows the bag in the state which opened using the breaking mechanism. It is sectional drawing which shows the bag in the state which was opened by using the breaking mechanism. It is sectional drawing which shows the bag in the state sealed by the fitting part. It is a front view which shows one modification of a bag. It is a front view which shows one modification of a bag. It is a front view which shows one modification of a bag.

Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 15. In the drawings attached to the present specification, the scale, the aspect ratio, etc. are appropriately changed from those of the actual product and exaggerated for the convenience of illustration and comprehension.

In addition, as used in the present specification, the terms such as "parallel", "orthogonal", and "same" and the values of length and angle that specify the shape and geometric conditions and their degrees are strictly used. Without being bound by the meaning, we will interpret it including the range where similar functions can be expected.

Bag FIG. 1 is a front view showing a case where the bag 10 in the present embodiment is viewed from the front surface side. The bag 10 includes a storage unit 18 for storing the contents. Note that FIG. 1 shows a bag 10 in a state in which the upper portion 11 is open before the contents are stored. The upper portion 11 is sealed after the contents are contained in the bag 10. The bag 10 according to the present embodiment is configured to be suitably used as a cooking pouch capable of cooking the contents in a state where the contents are contained in the bag 10. In addition, "cooking" is widely interpreted, and not only when cooking to the state of being served for food (also referred to as "finished cooking"), but also when cooking until just before the state of being served for food (using bag 10). Includes when additional cooking is required after the existing cooking (also called "semi-finished cooking"). Examples of cooking include heating and mixing. Mixing is to mix two or more kinds of contents contained in the bag 10. Examples of consumer actions during the mixing operation using the bag 10 include kneading, shaking, and crushing. In addition, "mixing" (mixing) means adding other ingredients such as water, eggs, meat, and vegetables to a container containing powder or liquid seasoning in advance, sealing the container, and then mixing the contents. It refers to cooking. In addition, "rubbing" means to knead or push the contents together with the container after sealing the container to mix them. “Shaking” means that the container is sealed and then shaken up, down, left and right to mix the contents.

Examples of the contents contained in the bag 10 include powders (including granules), liquids, fluid foodstuffs, and chopped foodstuffs. The contents are roughly classified into a first content and a second content. The first content is formed by the manufacturer in the case where the bag 10 is stored in the storage unit 18 in advance at the time of selling the product, or by the consumer who obtained the bag 10 with the storage unit 18 empty according to the breaking mechanism described later. There is a case where it is introduced into the accommodating portion 18 through the opening. The second content is a material that is further introduced by the consumer into the housing 18 in which the first content is housed, through an opening formed along the breaking mechanism.

Examples of the first content in semi-finished cooking include so-called "premix" (abbreviation of Prepared Mix, pre-mix), wheat flour (weak flour), strong flour, and tempura flour. Premix is a flour that makes it easy to cook cakes, breads, etc., and is suitable for flours such as wheat flour (including starch), sugars, fats and oils, powdered milk, egg flour, leavening agents, salt, fragrances, etc. as needed. It is compounded in. Premixes include pancake mixes, okonomiyaki mixes, bread mixes, cookie mixes, and monjayaki mixes. Examples of ingredients for omelets include ham, fresh cream, cut vegetables, semi-cooked vegetables, and frozen vegetables.

In addition, as the first contents in semi-finished cooking or finished cooking, health foods such as prepared foods, proteins (powder), amino acids (powder), green juice (powder), diet foods, dried fruits, cereals, fruits, nuts, etc. Examples include confectionery, desserts, other processed foods, and various powders for dietary substitutes. In addition, powdered coffee, sports drinks, and other powdered beverage bases can be mentioned.

The second content includes, for example, milk, soy milk, juice, coffee, tea, liquids such as water, fluid foods such as eggs, and foods that are chopped or melted and have fluidity such as cheese and chocolate. , Baking powder, salt, sugar, powder such as spices, various liquid seasonings, yeast such as yeast, and ice.

In the finished cooking, frozen desserts such as ice cream (sherbet-like ice cream) and ice cream as the first content are mixed with beverage liquids such as milk and syrup as the second content to form a frozen dessert. Beverages can be easily prepared.

The bag 10 of the present invention is suitable for softly baking a mixed material such as a cake or an omelet with a large amount of air. It is also suitable for whipping and mixing beverages such as coffee.

As long as the bag 10 according to the present embodiment can be used for cooking, it is possible to select other than the above as the first content and the second content.

In the present embodiment, regarding the usage of the bag 10, as an example, the first content is stored in advance in the bag 10 in a state where the upper portion 11 is sealed, and the consumer further adds the second content to the bag 10. The bag 10 will be described on the assumption that the first content and the second content are mixed in the added state.

In the present embodiment, the bag 10 is a bottom gusset type bag configured to be self-supporting. The bag 10 includes an upper portion 11, a lower portion 12, a first side portion 13 and a second side portion 14, and has a substantially rectangular contour in the front view. The names such as "upper part", "lower part" and "side part", and the terms such as "upper part" refer to the bag 10 and its configuration based on the state in which the bag 10 stands on its own with the gusset part down. It is just a relative representation of the position and orientation of the elements. The posture during transportation and use of the bag 10 is not limited by the names and terms in the present specification.

Hereinafter, the configuration of the bag 10 will be described. The bag 10 according to the present embodiment includes a first film 15, a second film 16, a third film 17, a first member 31, a second member 32, and a breaking mechanism 33. The first film 15 constitutes the front surface of the bag 10, the second film 16 constitutes the back surface of the bag 10, and the third film 17 constitutes the lower portion 12 of the bag 10. The third film 17 is arranged between the first film 15 and the second film 16 in a state of being folded back at the folded-back portion 17f. The breaking mechanism 33 is a component for opening the bag 10 when the consumer puts the second content into the bag 10. The first member 31 and the second member 32 are components for sealing the bag 10 after the consumer puts the second content into the bag 10. The first member 31 has a first joint portion 31a and a first fitting portion 31b shown in FIG. The second member 32 has a second joint portion 32a and a second fitting portion 32b shown in FIG. In FIG. 1, components such as the second film 16 that are not visible when the bag 10 is viewed from the surface side are represented by dotted lines.

The terms "first film", "second film", and "third film" described above refer to each film according to the positional relationship in the bag 10, such as being located on the front surface, the back surface, or the lower portion 12 of the bag 10. It is merely a compartment, and the method of providing the film when manufacturing the bag 10 is not limited by the above-mentioned terms. For example, the bag 10 may be manufactured by using one film in which the first film 15, the second film 16, and the third film 17 are connected in series, and the first film 15 and the third film 17 are connected in series. It may be produced by using a total of two films, one film and one second film 16, one first film 15, one second film 16, and one third film. It may be manufactured by using a total of three films of the film 17.

The inner surfaces of the first film 15, the second film 16, and the third film 17 are joined by a sealing portion. In a plan view such as FIG. 1, the seal portion and the first joint portion 31a and the second joint portion 32a, which will be described later, are hatched.

As shown in FIG. 1, the seal portion has an outer edge seal portion extending along the outer edge of the bag 10. The outer edge seal portion extends along the lower seal portion 12a extending to the lower portion 12, the first side seal portion 13a extending along the first side portion 13, and the second side portion 14 facing the first side portion 13. The second side seal portion 14a is included. In the bag 10 in the state before the contents are stored, as shown in FIG. 1A, the upper portion 11 of the bag 10 is the first opening 11b. After the contents are contained in the bag 10, the inner surface of the first film 15 and the inner surface of the second film 16 are joined at the upper portion 11 to form an upper seal portion and seal the bag 10.

The first side seal portion 13a, the second side seal portion 14a, and the upper seal portion are seal portions formed by joining the inner surface of the first film 15 and the inner surface of the second film 16. On the other hand, the lower seal portion 12a has a seal portion formed by joining the inner surface of the first film 15 and the inner surface of the third film 17, and the inner surface of the second film 16 and the inner surface of the third film 17. Includes a seal that is formed by joining.

As long as the bags 10 can be sealed by joining the films facing each other, the method for forming the sealing portion is not particularly limited. For example, the inner surface of the film may be melted by heating and the inner surfaces may be welded to each other, that is, the seal portion may be formed by heat sealing. Alternatively, the sealing portion may be formed by adhering the inner surfaces of the films facing each other with an adhesive or the like.

Next, the layer structure of the laminate 21 constituting the first film 15 and the second film 16 will be described. 2 and 3 are cross-sectional views showing an example of the layer structure of the laminated body 21.

The laminate 21 includes at least a base material layer 26 and a sealant layer 27. In the example shown in FIG. 2, the base material layer 26 constitutes the outer surface 21y of the laminated body 21, and the sealant layer 27 constitutes the inner surface 21x of the laminated body 21. In the example shown in FIG. 2, the laminated body 21 has a base material layer 26, an adhesive layer 28 for adhering the base material layer 26 and the sealant layer 27 from the outer surface 21y to the inner surface 21x of the laminated body 21, and the sealant layer 27. Are included in this order. In this case, the thickness of the laminated body 21 is, for example, 60 μm or more, more preferably 70 μm or more. The thickness of the laminated body 21 is, for example, 110 μm or less, more preferably 100 μm or less. Further, as shown in FIG. 3, the laminated body 21 may further include an intermediate layer 24 located between the base material layer 26 and the sealant layer 27. In this case, as shown in FIG. 3, the laminated body 21 has a base material layer 26, an adhesive layer 28 for adhering the base material layer 26 and the intermediate layer 24 from the outer surface 21y to the inner surface 21x of the laminated body 21, and an intermediate layer. The layer 24, the adhesive layer 25 for adhering the intermediate layer 24 and the sealant layer 27, and the sealant layer 27 may be included in this order. Further, the laminated body 21 may further include a layer other than the layers shown in FIGS. 2 and 3.

As the material constituting the base material layer 26, for example, a polyamide such as polyester or nylon such as polyethylene terephthalate or polybutylene terephthalate, or a plastic such as polyolefin such as high-density polyethylene or polypropylene can be used. The thickness of the base material layer 26 is, for example, 10 μm or more and 30 μm or less.

As the material constituting the intermediate layer 24, for example, a metal foil or a vapor-deposited film can be used. As a result, the intermediate layer 24 has a gas barrier property against gases such as water vapor and oxygen. The metal foil used for the intermediate layer 24 is, for example, an aluminum foil. The thin-film film used for the intermediate layer 24 includes, for example, a base material and a thin-film film deposited on the base material. In this case, for example, polyethylene terephthalate (PET) or polyamide (PA) can be used as the base material, and aluminum or an inorganic oxide can be used as the vapor deposition film.

As the material constituting the sealant layer 27, for example, polyethylene or polypropylene such as ethylene-methacrylic acid copolymer (EMMA), low density polyethylene (LDPE) or linear low density polyethylene (LLDPE) can be used. The thickness of the sealant layer 27 is, for example, 40 μm or more, more preferably 50 μm or more. The thickness of the sealant layer 27 is, for example, 100 μm or less, more preferably 70 μm or less.

The configuration of the adhesive layer 25 and the adhesive layer 28 is arbitrary. For example, the adhesive layer 25 and the adhesive layer 28 may be a layer formed by an extrusion method or a layer formed by a dry laminating method. For example, the base material layer 26 and the intermediate layer 24 are adhered to each other via the adhesive layer 28 by an extrusion method using an extrusion coater (not shown), and the intermediate layer 24 and the sealant layer 27 are bonded to each other via the adhesive layer 25. It may be glued. Further, the base material layer 26, the intermediate layer 24 and the sealant layer 27 may be adhered by a dry laminating method using the adhesive layer 25 and the adhesive layer 28 made of an adhesive such as urethane.

Next, the layer structure of the third film 17 will be described. The layer structure of the third film 17 is arbitrary as long as it has an inner surface of the first film 15 and an inner surface that can be bonded to the inner surface of the second film 16. For example, similarly to the first film 15 and the second film 16, the above-mentioned laminate 21 may be used as the third film 17. Alternatively, a film having an inner surface composed of a sealant layer and having a structure different from that of the laminated body 21 may be used as the third film 17.

First Member and Second Member Next, the configurations of the first member 31 and the second member 32 will be described with reference to FIGS. 1, 4 and 5. FIG. 4 is a cross-sectional view showing a case where the bag 10 is cut along the IV line of FIG. Further, FIG. 5 is a cross-sectional view showing a case where the bag 10 is cut along the V line of FIG.

The first member 31 has a base film 31c including a first joint portion 31a and a first fitting portion 31b. As shown in FIG. 4, the base film 31c is a film located between the first film 15 and the second film 16 in the portion of the bag 10 near the upper portion 11. The above-mentioned first joint portion 31a is a portion of the base film 31c that is joined to the inner surface of the first film 15. The first fitting portion 31b is located so as not to overlap with the first joint portion 31a, and is provided in a portion of the base film 31c other than the first joint portion 31a. In the example shown in FIG. 4, the first joint portion 31a is located on the surface of the base film 31c facing the inner surface of the first film 15. As shown in FIG. 4, the portion of the first member 31 located between the first side seal portion 13a and the second side seal portion 14a is not joined to the second film 16.

The second member 32 has a second joint portion 32a and a second fitting portion 32b. As shown in FIG. 4, the second joint portion 32a is joined to the inner surface of the first film 15. Further, the second fitting portion 32b is configured to be matable with the first fitting portion 31b. FIG. 4 shows how the first fitting portion 31b and the second fitting portion 32b are fitted. In a plan view such as FIG. 1, the first joint portion 31a and the second joint portion 32a joined to the inner surface of the first film 15 are hatched differently from the hatches applied to the seal portion.

The method of joining the first joint portion 31a and the second joint portion 32a to the inner surface of the first film 15 is not particularly limited. For example, the inner surfaces of the first joint portion 31a, the second joint portion 32a, and the first film 15 are melted by heating or the like, and the first joint portion 31a and the inner surface of the first film 15 are welded together with the second joint portion 32a. It may be joined by welding the inner surface of the first film 15. Alternatively, the first joint portion 31a and the inner surface of the first film 15 may be bonded to each other using an adhesive or the like, and the second joint portion 32a and the inner surface of the first film 15 may be bonded to each other.

The base film 31c has a surface that can be bonded to the inner surface of the first film 15. The base film 31c has a thickness that allows it to be deformed following the deformation of the first film 15. The thickness of the base film 31c is, for example, 25 μm or less, and may be 15 μm or less. As the material constituting the base film 31c, polyethylene terephthalate (PET), stretched nylon (ONY), polybutylene terephthalate (PBT), or polyolefins such as polyethylene (PE) and polypropylene (PP) can be used.

Like the base film 31c, the second bonding portion 32a also has a surface that can be bonded to the inner surface of the first film 15. Further, the second joint portion 32a also has a thickness that can be deformed following the deformation of the first film 15. The thickness of the second joint portion 32a is, for example, 40 μm or less, and may be 30 μm or less. PP, PE, or the like can be used as the material constituting the second joint portion 32a.

The shapes of the first fitting portion 31b and the second fitting portion 32b are not particularly limited as long as they can be fitted to each other. Specifically, as shown in FIG. 4, the first fitting portion 31b can be a female type and the second fitting portion 32b can be a male type. Further, although not shown, the first fitting portion 31b may be a male type and the second fitting portion 32b may be a female type.

The first fitting portion 31b and the second fitting portion 32b have heat resistance to such an extent that they are not melted or damaged when the contents are heated. As a material constituting the first fitting portion 31b and the second fitting portion 32b, PP, PE or the like can be used. The first fitting portion 31b may be integrally formed with the base film 31c. Further, the second fitting portion 32b may be integrally configured with the second joint portion 32a. In addition, "integral" means that there is no interface such as a joint surface between the two.

In the example shown in FIG. 4, the second fitting portion 32b overlaps the second joint portion 32a. That is, in the portion of the second member 32 that is joined to the inner surface of the first film 15, the second fitting portion 32b is provided on the side of the second film 16. However, the arrangement of the second fitting portion 32b is not limited to this. For example, although not shown, the second fitting portion 32b may be provided on a portion of the second member 32 that is not joined to the inner surface of the first film 15.

In the present embodiment, as shown in FIGS. 1 and 5, the first member 31 and the second member 32 are formed so as to reach from the first side seal portion 13a to the second side seal portion 14a. .. In the example shown in FIG. 1, the first joint portion 31a, the first fitting portion 31b, the second joint portion 32a, and the second fitting portion 32b are respectively from the first side portion sealing portion 13a to the second side portion sealing portion. It extends to 14a. Therefore, when the first fitting portion 31b and the second fitting portion 32b are fitted, a space 19 isolated from the accommodating portion 18 is formed inside the bag 10. The space 19 is surrounded by the first joint portion 31a, the base film 31c, the first fitting portion 31b, the second fitting portion 32b, the second joint portion 32a, and the first film 15.

Breaking mechanism Next, the breaking mechanism 33 will be described. The breaking mechanism 33 is a component for breaking the first film 15 and forming an opening communicating with the above-mentioned space 19 in the first film 15. As shown in FIGS. 1 and 4, the breaking mechanism 33 is a component for breaking the first film 15 at a position between the first joint portion 31a and the second joint portion 32a to form an opening. is there. Hereinafter, the opening formed by breaking the first film 15 using the breaking mechanism 33 is also referred to as a second opening. In the examples shown in FIGS. 1, 4 and 5, the breaking mechanism 33 includes a pair of cutting portion half-cut lines 331, a knob portion 332, and a penetrating portion 333. Further, in the example shown in FIG. 1, the breaking mechanism 33 further includes a tear prevention portion half-cut line 334.

A pair of cut portion half cut lines 331 will be described. As shown in FIG. 1, the pair of cut portion half-cut lines 331 are located on the first film 15 and extend from the first side portion seal portion 13a side to the second side portion seal portion 14a side. Here, the cut portion half-cut line 331 is a recess formed in a part of the first film 15 composed of the laminated body 21 as shown in FIG. 2 or 3, for example, and is a recess of the laminated body 21. It refers to a shape that does not penetrate all layers. In the example shown in FIG. 1, the pair of cut portion half-cut lines 331 are arranged in parallel. Further, the pair of cut portion half-cut lines 331 extend from the side of the bag 10 on the first side portion 13 side to the side of the second side portion 14 side.

FIG. 6 shows an example of the layer structure of the laminated body 21 constituting the first film 15 and the form of the cut portion half cut line 331 in the vicinity of the pair of cut portion half cut lines 331 in the cross-sectional view shown in FIG. It is a figure. Note that FIG. 6 shows a case where the first film 15 has the layer structure shown in FIG. As shown in FIG. 6, the pair of cut portion half-cut lines 331 are recesses provided in the base material layer 26 so as not to reach the sealant layer 27. In the example shown in FIG. 6, the cut portion half-cut line 331 is a recess provided on the surface of the base material layer 26 opposite to the accommodating portion 18 and does not penetrate the base material layer 26. Although not shown, the cut portion half-cut line 331 may penetrate the base material layer 26. The cut portion half-cut line 331 makes it easier for the first film 15 to break along the cut portion half-cut line 331.

Next, the knob portion 332, the penetrating portion 333, and the tear prevention portion half-cut line 334 will be described. FIG. 7 is an enlarged view showing the vicinity of the tear prevention portion 72 and the tear grip portion 73 of the bag 10 shown in FIG. FIG. 8 is a diagram showing a case where the range shown in FIG. 7 of the bag 10 is viewed from the side of the second film 16. In FIG. 8, components such as the cut portion half-cut line 331, which are not visible when the bag 10 is viewed from the second film 16 side, are represented by dotted lines.

The knob portion 332 is a portion that can be picked when the consumer breaks the first film 15 along the pair of cut portion half-cut lines 331. As shown in FIG. 7, the knob portion 332 is located at the first side portion seal portion 13a. Further, as shown in FIG. 5, the knob portion 332 includes a first film 15, a first member 31, and a second film 16. In the examples shown in FIGS. 5 and 7, the knob portion 332 is picked by the consumer because the first film 15, the first member 31, and a part of the second film 16 are provided with the penetration portion 333 described later. It is a part that is configured so that it can be done. In the example shown in FIG. 7, the contour of the knob portion 332 is defined by the penetration portion 333 and the tear prevention portion half-cut line 334 described later. The knob portion 332 includes a base portion 332a located between the pair of cut portion half-cut lines 331. In the example shown in FIG. 7, the base portion 332a is a portion of the knob portion 332 located on the second side portion 14 side, and is a second side portion of the first film 15 and the knob portion 332 included in the knob portion 332. The first film 15 located on the side is a portion connected between the pair of cut portion half-cut lines 331. The knob portion 332 has a shape that is easy for consumers to pick. For example, the size of the knob portion 332 in the vertical direction of the bag 10 is larger than the distance between the pair of cut portion half-cut lines 331 in the vertical direction of the bag 10. The knob portion 332 is formed, for example, after the first side portion seal portion 13a is formed by heat sealing.

As shown in FIGS. 1, 5 and 6, the penetrating portion 333 penetrates the first film 15, the first member 31 and the second film 16 at the first side sealing portion 13a. The penetrating portion 333 is formed around the knob portion 332 and defines a part of the contour of the knob portion 332. Further, as shown in FIG. 7, the penetrating portion 333 includes one end 333a and the other end 333b connected to the base portion 332a of the knob portion 332. The one end 333a and the other end 333b of the penetrating portion 333 may be directly connected to the base portion 332a of the knob portion 332 as shown in FIG. 7, or a pair of cut portions half-cut, although not shown. It may be connected to the base portion 332a of the knob portion 332 via the wire 331.

As shown in FIG. 8, the tear prevention portion half-cut line 334 is located on the second film 16 on the accommodating portion 18 side of the knob portion 332 and crosses the pair of cut portion half-cut lines 331. In the example shown in FIG. 8, the tear prevention portion half-cut line 334 is located at the first side seal portion 13a. Further, in the example shown in FIG. 5, the tear prevention portion half-cut line 334 penetrates the portion of the bag 10 from the outer surface of the second film 16 to the surface of the first member 31 on the first film 15 side. In the example shown in FIG. 8, the tear prevention portion half-cut line 334 is formed around the knob portion 332 and defines the contour of the knob portion 332 at the base portion 332a. The tear-preventing portion half-cut wire 334 causes the portion of the second film 16 and the first member 31 included in the knob portion 332 to be closer to the accommodating portion 18 than the knob portion 332 of the second film 16 and the first member 31. By separating from the portion, the force required to pull up or push up the knob portion 332 toward the first film 15 side can be reduced. Further, when the second film 16 or the first member 31 overlapping the portion of the first film 15 located between the pair of cut portion half-cut lines 331 pulls up or pushes up the knob portion 332 toward the first film 15. It is possible to prevent the film from breaking.

Although not shown, the breaking mechanism 33 may further include a knob portion 332, a penetration portion 333, and a tear prevention portion half-cut line 334 located on the second side seal portion 14a. In other words, the knob portion 332, the penetrating portion 333, and the tear prevention portion half-cut line 334 may be formed on both the first side portion 13 side and the second side portion 14 side.

Manufacturing Method of Bag Next, the manufacturing method of the bag 10 in the present embodiment will be described with reference to FIGS. 9 and 10. FIG. 9 is a perspective view showing how the components of the bag 10 are overlapped and joined in the manufacturing process of the bag 10. FIG. 10 shows the first member 31, the second member 32, and the second member 32 in the step of joining the first joint portion 31a of the first member 31 and the second joint portion 32a of the second member 32 to the inner surface of the first film 15, respectively. It is a figure which showed the state of the 1st film 15.

First, as shown in FIG. 9, the first film 15, the second film 16, the first member 31, and the second member 32 are prepared. The first film 15, the second film 16, the first member 31, and the second member 32 are in the direction in which the first fitting portion 31b of the first member 31 and the second fitting portion 32b of the second member 32 extend, respectively. It may be prepared as an elongated member extending along the line.

Next, as shown in FIG. 9, a pair of cut portion half-cut lines 331 are formed on the first film 15. The pair of cut portion half-cut lines 331 are formed so that, for example, the cut portion half-cut lines 331 having a desired depth are formed on the surface of the first film 15 that constitutes the outer side of the manufactured bag 10. It can be formed by irradiating a carbon dioxide laser beam while adjusting the laser output value (%) and the printing speed. When the first film 15 has the intermediate layer 24 of the metal thin film and the laser beam is irradiated from the base material layer 26 side, the laser beam is reflected by the intermediate layer 24. Therefore, damage such as penetration of the intermediate layer 24 and the adhesive layer 25 by the laser beam is suppressed. Therefore, in the above case, the cut portion half-cut line 331 penetrating the base material layer 26 and the adhesive layer 28 can be formed without adjusting the laser output value (%) of the laser light and the printing speed.

Next, the first joint portion 31a of the first member 31 and the second joint portion 32a of the second member 32 are joined to the inner surface of the first film 15, respectively. Further, the folded third film 17 is inserted into the lower 12 side of the first film 15 and the second film 16, and the inner surfaces of the films are heat-sealed to each other to heat-seal the lower seal portion 12a and the first side seal. A seal portion such as a portion 13a and a second side portion seal portion 14a is formed. In the step of joining the first joint portion 31a and the second joint portion 32a to the inner surface of the first film 15, as shown in FIG. 10, the baffle plate 51 is between the first member 31 and the second member 32. May be inserted. As a result, it is possible to prevent the first member 31 and the second member 32 from being joined.

Then, the films bonded to each other by heat sealing are cut out in the shape of the bag 10. In this way, the bag 10 shown in FIG. 1 can be obtained.

Method of filling the first content Next, a method of filling the above-mentioned bag 10 with the first content will be described. First, the bag 10 is filled with the first content 61 through the first opening 11b of the upper portion 11 of the bag 10 shown in FIGS. 1 and 4. Next, the upper portion 11 of the bag 10 containing the first content 61 is heat-sealed to form the upper seal portion 11a. In this way, the bag 10 in which the first content 61 is housed and sealed can be obtained. FIG. 11 is a front view showing the bag 10 in a state where the upper portion 11 is sealed. Further, FIG. 12 is a cross-sectional view showing a case where the bag 10 is cut along the line XII of FIG.

When the bag 10 is filled with the first content 61 through the first opening 11b of the upper portion 11 of the bag 10, the first content 61 passes between the second film 16 and the first member 31. Therefore, according to the present embodiment, the first content 61 can be filled in the accommodating portion 18 without passing between the first fitting portion 31b and the second fitting portion 32b. Therefore, it is possible to prevent the first content 61 from adhering to the first fitting portion 31b and the second fitting portion 32b, so that the first fitting portion 61 is caused by the adhesion of the first content 61. It is possible to suppress a decrease in the fitting force between the 31b and the second fitting portion 32b. Further, it is possible to prevent the first content 61 from adhering to the consumer's hand when the consumer opens the first fitting portion 31b and the second fitting portion 32b.

How to Use the Bag Next, an example of a method in which the consumer uses the bag 10 containing the first content 61 will be described. First, the consumer uses the breaking mechanism 33 to open the bag 10. FIG. 13 is a perspective view showing the bag 10 in an opened state. FIG. 14 is a cross-sectional view showing the bag 10 in an opened state.

Hereinafter, a method of opening the bag 10 by using the breaking mechanism 33 will be described. First, the consumer raises the knob portion 332 of the bag 10 toward the first film 15 side and picks the knob portion 332. Next, the consumer pulls the knob portion 332 from the first side portion 13 side toward the second side portion 14 side. As a result, the first film 15 can be torn in the width direction of the bag 10 along the pair of cut portion half-cut lines 331 starting from the base portion 332a of the knob portion 332. As a result, as shown in FIGS. 13 and 14, between the first joint portion 31a and the second joint portion 32a, the first film 15 extends from the first side portion 13 side to the second side portion 14 side. It is possible to form the second opening 11c having a distance corresponding to the distance between the pair of cut half cut lines 331. Note that FIG. 13 shows the bag 10 when the knob portion 332 is pulled until the portion of the first film 15 located between the pair of cut portion half-cut lines 331 is separated from the bag 10. The method for breaking the first film 15 is not limited to this. For example, the consumer is in a state where the knob portion 332 is connected to the bag 10 on the second side portion 14 side via a portion of the first film 15 located between the pair of cut portion half-cut lines 331. The pulling of the portion 332 may be stopped. Further, when the first fitting portion 31b and the second fitting portion 32b are previously fitted, the consumer puts the bag 10 so as to widen the space between the first member 31 and the second member 32. A force is applied to disengage the fitting between the first fitting portion 31b and the second fitting portion 32b. In this way, the second opening 11c communicating with the accommodating portion 18 can be formed in the bag 10.

Subsequently, the consumer adds the second content 62 to the accommodating portion 18 of the bag 10 via the second opening 11c. The consumer then mixes the first content 61 and the second content 62. The mixing of the first content 61 and the second content 62 can be performed, for example, as follows. First, as shown in FIG. 15, the first fitting portion 31b and the second fitting portion 32b are fitted to each other, and the bag 10 is resealed. In this case, as shown in FIG. 15, the base film 31c is arranged so as to cover the portion where the first fitting portion 31b and the second fitting portion 32b are fitted. Subsequently, the first content 61 and the second content 62 are rubbed by hand together with the bag 10. To. As a result, the first content 61 and the second content 62 are mixed, and as shown in FIG. 15, a mixture 63 of the first content 61 and the second content can be obtained.

After mixing the first content 61 and the second content 62 to obtain the mixture 63, the consumer opens the bag 10 and removes the mixture 63 from the bag 10. The method of opening the bag 10 at this time is arbitrary. For example, the consumer applies a force to the bag 10 so as to widen the space between the first member 31 and the second member 32 to fit the first fitting portion 31b and the second fitting portion 32b. You may remove it. In this case, the consumer can take out the first content 61 and the second content 62 through the second opening 11c. In addition, the consumer may form a new opening in the bag 10 by tearing the bag 10 or the like, and take out the mixture 63. When the consumer takes out the mixture 63 from the bag 10, the consumer leaves a part of the mixture 63 in the bag 10 and refits the first fitting portion 31b and the second fitting portion 32b to fit the bag. 10 may be used to store the mixture 63.

Hereinafter, the effect of the bag 10 according to the present embodiment will be described. The bag 10 according to the present embodiment has a configuration in which tearing is performed along the pair of cut portion half-cut lines 331, and the force is likely to be concentrated on the pair of cut portion half-cut lines 331. Therefore, it is possible to open the bag with a smaller force than the conventional bag that tears both the first film 15 and the second film 16. That is, it is easy to open.

Further, in the bag 10 according to the present embodiment, as shown in FIG. 4, a portion of the first member 31 located between the first side seal portion 13a and the second side seal portion 14a is located. It is not bonded to the second film 16. As a result, as shown in FIG. 4, the first opening 11b between the second film 16 and the first member 31 can communicate with the accommodating portion 18. Therefore, the first content 61 can be filled in the accommodating portion 18 through the first opening 11b without passing between the first fitting portion 31b and the second fitting portion 32b.

Further, in the bag 10 according to the present embodiment, as shown in FIGS. 1 and 11, the first joint portion 31a, the first fitting portion 31b, the second joint portion 32a, and the second fitting portion 32b are respectively. , Extends from the first side seal portion 13a to the second side seal portion 14a. As a result, when the second opening 11c is formed between the first side seal portion 13a and the second side seal portion 14a as shown in FIG. 14, the first fitting portion 31b and the second fitting portion 31b are secondly fitted. By fitting the portion 32b, the second opening 11c can be closed and the bag 10 can be sealed.

Further, for example, when the bag 10 is used by a consumer, when the second content 62 is added to the accommodating portion 18 of the bag 10 through the second opening 11c, the first fitting portion 31b and the second fitting portion 31b and the second fitting portion 31b are added. It is conceivable that the second content 62 adheres to the portion 32b. In this case, as shown in FIG. 15, when the first fitting portion 31b and the second fitting portion 32b are fitted, the first fitting portion 31b and the first fitting portion 31b are caused by the attached second content 62. It is also conceivable that the fitting with the second fitting portion 32b becomes weak. Here, in the bag 10 according to the present embodiment, as shown in FIG. 15, the base film 31c covers the portion where the first fitting portion 31b and the second fitting portion 32b are fitted. Is placed in. Therefore, even when the fitting between the first fitting portion 31b and the second fitting portion 32b is weak, the first fitting portion 31b and the second fitting portion 32b are fitted by the base film 31c. The mating portion can be protected from the contents in the accommodating portion 18, so that the mating between the first fitting portion 31b and the second fitting portion 32b can be more easily maintained.

(First modification)
As shown in FIG. 16, for example, the bag 10 may have a spout portion 4 which is a portion for pouring out the contents contained in the accommodating portion 18. The spout portion 4 includes the first film 15 and the second film 16. In the example shown in FIG. 16, the spout portion 4 is made of the same material as the first film 15 and the second film 16. Between the first film 15 and the second film 16, a flow passage 40 through which the contents are circulated when the contents contained in the accommodating portion 18 are poured out is formed.

In the example shown in FIG. 16, the spout portion 4 has a flow passage 40, a spout seal portion 47 surrounding the flow passage 40, a spout knob portion 44, an opening line 46, and a planned opening portion 48. .. The flow passage 40 is a passage formed between the first film 15 and the second film 16 and protrudes from the bag 10, and the contents are distributed when the contents contained in the accommodating portion 18 are poured out. It is a passage to do. The spout seal portion 47 is a seal portion that surrounds the flow passage 40. The spout knob 44 is a portion that can be pinched by a finger when the spout 4 is opened. The opening line 46 forms a boundary line between the spout seal portion 47 and the spout knob portion 44. The scheduled opening section 48 is a scheduled section that serves as a spout (opening) from which the contents are poured out when the package is opened. When the opening line 46 is broken and the spout portion 4 is broken along the breaking direction, the planned opening portion 48 is also broken. As a result, the opening of the spout portion 4 is formed. The opening line 46 is formed on the first film 15 and the second film 16 in order to facilitate the work of breaking the spout portion 4 to form the opening of the spout portion 4. Specifically, the opening wire 46 is processed so as to be more easily broken than other parts of the bag 10. Perforations are exemplified as an example of processing. The scheduled opening portion 48 may be provided with an easy-opening means for facilitating the opening of the bag 10. Further, the planned opening portion 48 may not be provided with an easy opening means.

The bag 10 provided with the spout portion 4 according to the first modification can eject the contents contained in the accommodating portion 18 from the spout portion 4 and discharge the contents. In particular, when compared with the case where the contents are taken out from the second opening 11c, when the contents are poured out from the pouring port 4, the contents contained in the accommodating portion 18 are dispensed little by little to the outside of the bag 10. It can be discharged or can be discharged finely. That is, the discharge operability can be improved.

(Second modification)
As shown in FIG. 17, for example, the bag 10 may have a steam venting mechanism 20 for discharging the steam in the accommodating portion 18 to the outside. The steam bleeding mechanism 20 communicates the inside and the outside of the bag 10 with each other when the steam pressure exceeds a predetermined value to release the steam, and suppresses the steam bleeding from a place other than the steam bleeding mechanism 20. It is a component for. As shown in FIG. 17, for example, the steam bleeding mechanism 20 has a steam bleeding seal portion 20a connected to the first side seal portion 13a. The steam vent seal portion 20a has a shape that is easily peeled off as the pressure of the accommodating portion 18 increases. In the example shown in FIG. 17, the steam venting seal portion 20a has a shape protruding from the first side sealing portion 13a toward the inside of the bag 10. As a result, the force applied to the steam venting seal portion 20a when the pressure of the accommodating portion 18 increases can be made larger than the force applied to the first side sealing portion 13a. Further, the width of the steam venting seal portion 20a is smaller than the width of the first side sealing portion 13a. Further, as shown in FIG. 17, a non-seal portion 20b is formed between the steam vent seal portion 20a and the outer edge of the first side portion 13. As a result, in the steam venting seal portion 20a as compared with the first side sealing portion 13a, it is possible to facilitate communication between the accommodating portion 18 and the outside due to the peeling of the sealing portion. As shown in FIG. 17, the above-mentioned steam venting mechanism 20 may be provided on the upper 11 side of the first member 31 and the second member 32. Further, although not shown, it may be provided on the lower 12 side of the first member 31 and the second member 32.

The bag 10 provided with the steam venting mechanism 20 according to the second modification can be used for cooking in which the contents are heated by, for example, a microwave oven.

(Third variant)
In the above-described embodiment and each modification, an example is shown in which the bag 10 is a bottom gusset type bag including the first film 15, the second film 16, and the third film 17. However, the present invention is not limited to this, and as shown in FIG. 18, the bag 10 may be a so-called flat pouch including the first film 15 and the second film 16.

(Fourth modification)
In the above-described embodiment, an example is shown in which the first content 61 is housed in the bag 10 which is sealed by the upper seal portion 11a but is not opened at the breaking mechanism 33. .. However, the present invention is not limited to this, and the contents may not be contained in the bag 10 which is sealed by the upper seal portion 11a but is not opened at the breaking mechanism 33. In this case, the consumer uses the breaking mechanism 33 to open the bag 10 and then puts the contents into the storage portion 18 of the bag 10 through the second opening 11c. Subsequently, after fitting the first fitting portion 31b and the second fitting portion 32b, the contents may be cooked.

Although some modifications to the above-described embodiments have been described, it is naturally possible to apply a plurality of modifications in combination as appropriate.

10 Bag 11 Upper part 11a Upper seal part 11b First opening 11c Second opening 12 Lower 12a Lower seal part 13 First side part 13a First side seal part 14 Second side part 14a Second side seal part 15th 1 film 16 2nd film 17 3rd film 17f Folded part 18 Storage part 19 Space 20 Steam venting mechanism 20a Steam venting Sealing part 20b Non-sealing part 20c Through hole 21 Laminated body 21x Inner surface 21y Outer surface 24 Intermediate layer 25 Adhesive layer 26 Base material Layer 27 Sealant layer 28 Adhesive layer 31 First member 31a First joint 31b First fitting 31c Base film 32 Second member 32a Second joining 32b Second fitting 33 Breaking mechanism 331 Cut half cut line 332 Knob part 332a Base part 333 Penetration part 334 Tear prevention part Half-cut line 4 Inlet part 40 Flow passage 44 Inlet knob part 46 Opening line 47 Inlet outlet seal part 48 Scheduled opening part 51 Baffle plate 61 First contents 62 Second contents object

Claims (6)

A bag with a storage compartment for the contents
The first film constituting the first surface of the bag and
A second film forming a second surface facing the first surface, and a second film defining the accommodating portion with the first film.
A first side seal portion and a second side seal portion that extend along the outer edge of the bag and face each other to join the first film and the second film.
A first member having a first joint portion bonded to the inner surface of the first film and a first fitting portion positioned so as not to overlap the first joint portion.
A second member having a second joint portion bonded to the inner surface of the first film and a second fitting portion capable of fitting with the first fitting portion.
A breaking mechanism for breaking the first film at a position between the first joint and the second joint is provided.
The first joint portion and the first fitting portion of the first member, and the second fitting portion and the second joint portion of the second member are each from the first side portion seal portion to the second side. It extends to the part seal part and
The portion of the first member located between the first side seal portion and the second side seal portion is not bonded to the second film.
The breaking mechanism is
A pair of cut half-cut lines located on the first film and extending from the first side seal portion side to the second side seal portion side.
A knob portion located on the first side seal portion and including the first film, the first member, and the second film, and including a base portion located between the pair of cut portion half-cut lines. Department and
The first side sealing portion includes a penetrating portion that penetrates the first film, the first member, and the second film, and includes one end and the other end connected to the base portion of the knob portion. bag. The bag according to claim 1, wherein the breaking mechanism is located on the second film on the accommodating portion side of the knob portion and includes a tear prevention portion half-cut line that crosses the pair of the cut portion half-cut lines. The bag according to claim 2, wherein the tear prevention portion half-cut wire is located at the first side seal portion, penetrates the second film, and reaches the first member. Both the first film and the second film include a thermoplastic resin layer constituting the surface on the content side.
The bag according to any one of claims 1 to 3, wherein both the thermoplastic resin layer of the first film and the thermoplastic resin layer of the second film contain polyethylene or polypropylene as a main component. The bag according to any one of claims 1 to 4, further comprising a third film located between the first film and the second film and forming a lower portion of the bag. A distribution that includes the first film and the second film, and the contents are distributed between the first film and the second film when the contents contained in the accommodating portion are poured out. The bag according to any one of claims 1 to 5, further comprising a spout portion on which a path is formed.