JP6364709B2 - Packaging bag with bite - Google Patents

Description

  In the present invention, a thermoplastic resin occlusion device composed of a male member and a female member that are engaged with each other is mounted along the opening on the inner surface of an opening provided on one side of a packaging bag made of a laminate. In particular, the present invention relates to a packaging bag with an occlusion device that can hold the shape of the opening portion of the packaging bag containing contents such as snacks, candy, chocolate, and candy in an open state and can easily take out the contents.

  2. Description of the Related Art Conventionally, packaging bags that can be opened and closed by providing a band-shaped bite made of a male member and a female member at the opening of the packaging bag have been widely used in the fields of food, medicine, miscellaneous goods, and the like. The male member of the band-shaped occlusal tool has a band-shaped base that is heat-sealed by heat sealing or the like to the inner surface of the packaging bag near the opening, and a cross-sectional shape that protrudes from the band-shaped base and has a bulging tip. And a male occlusal portion extending along the extending direction of the belt-like base.

  Similarly, the female member has a belt-like base and a female occlusal portion that extends along the extending direction of the belt-like base with a curved cross-sectional shape that meshes with the tip bulging portion of the male occlusion. It is. And since the periphery of a packaging bag opening part is sealed linearly by making the said male occlusion part and a female occlusion part mutually bite, foodstuff etc. can be enclosed and stored without leaking. When taking out the contents such as foods hermetically stored in such a bag with a bite, for example, the bag outer portion in the vicinity of the opening is picked and pulled outward.

As described above, the packaging bag with the bite can easily open and close the packaging bag. However, the bite is rigid compared to the packaging bag body because the male member and the female member have the above-described shape. However, even if the bite is opened and the packaging bag is opened, it immediately returns to the original state and the opening is closed (hereinafter referred to as the closing of the opening). For this reason, when taking out the contents from the opened packaging bag, it has to be opened each time, and there is a problem that the usability is poor. In particular, when the aluminum foil is not laminated on the laminated body constituting the packaging bag, the property of plastic deformation of the laminated body itself is reduced, so that the opening is remarkably closed.
Therefore, the shape-retaining plastic wire is formed in an adhesive layer in parallel with the unsealed portion at a position close to the unsealed portion on one side outer surface or both outer surface of the pouch, which is made of a laminated material and has an unsealed portion on one side of the pouch main body portion. A bonded pouch is known (see, for example, Patent Document 1).
Further, it is a self-supporting bag composed of a laminate of a front surface material and a back surface material having at least a base material and a sealant layer, and is parallel to the planned opening line of the opening formed by cutting along the planned opening line. A packaging bag is also known in which a shape-retaining plastic wire having an extended multilayer structure is disposed on the sealant layers of the front and back materials by heat-sealing with each sealant layer (see, for example, Patent Document 2).
In addition, an occlusion device made of a thermoplastic resin, which is composed of a male member and a female member that are engaged with each other, and which is fused and integrated with the male member and / or the female member and the shape-retaining member, is an inner surface of the opening of the packaging bag. There is also disclosed a packaging bag with an occlusion tool fused to (see, for example, Patent Document 3).

  However, when Patent Document 1 is applied to a packaging bag with a bite (chuck), an impact or product generated during transportation of the product because the shape-retaining plastic wire is bonded to the outer surface of the packaging bag via an adhesive layer. Due to the external force during handling, part of the shape-retaining plastic wire may be peeled off, or dust may adhere to the end face of the adhesive layer and become unsanitary. Furthermore, there are problems that a chuck and a shape-retaining plastic wire are required as parts, the cost of the parts is increased, and in addition, two parts must be attached to the packaging bag, the manufacturing process becomes complicated, and the productivity is inferior. When Patent Document 2 is applied to a packaging bag with a bite (chuck), the above-mentioned quality and hygiene problems of Patent Document 1 are eliminated because the shape-retaining plastic wire is thermally fused to the inner surface of the self-standing bag. However, two parts, a chuck and a shape-retaining plastic wire, are required as parts, resulting in an increase in cost. In addition, the two parts must be attached to the packaging bag, the manufacturing process becomes complicated, and the productivity is inferior. There is. Further, when the shape-retaining plastic wire is attached to the packaging bag, there is a problem that whiskers are easily generated by rubbing against the guide, and foreign matters are mixed when the whiskers drop off in the packaging bag. Since the shape retention member of the articulator of the packaging bag of Patent Document 3 is integrated with the male member and / or the female member by heat fusion, the manufacturing process is simplified and the productivity is improved compared to Patent Documents 1 and 2. However, since the shape holding member of the bite is stretched, when the bite is attached to the packaging bag, the shape holding member is easily rubbed against the guide and a whisker is easily generated. Then, there is a problem that foreign matter is mixed.

JP 2013-18494 A JP 2012-25453 A JP 2007-246140 A

  Accordingly, the present invention provides a packaging bag with an occlusion device that can hold the shape of the opening of the packaging bag in an open state so that the contents can be easily taken out, and a whisker-like material may be generated in the occlusion device during the manufacture of the packaging bag. It is to provide a packaging bag with no bite.

The present invention has been made in order to achieve the above object, and the present invention according to claim 1 is characterized in that the occlusion device made of a thermoplastic resin comprising a male member and a female member which are engaged with each other is a laminate. A packaging bag with an occlusal tool mounted along the opening on the inner surface of the opening provided on one side of the packaging bag, wherein the male member has a belt-like first base and one of the first base A belt-shaped male occlusal portion projecting on the surface and provided continuously with the first base, and the female member projects on one surface of the belt-shaped second base and the second base A band-shaped female occlusal portion provided continuously with the second base portion, wherein the male occlusal portion and the female occlusal portion are provided with inorganic fillers 1 to 100 parts by weight of at least high-density polyethylene resin; The resin composition comprising 30 parts by weight, the first base and the second base The male member is an unstretched shape retaining member in which the first base portion and the male occlusal portion are integrally formed, and the female member is the second base portion and the female occlusal portion. Is an integrally formed member having unstretched shape retaining property, and the male occlusal portion with respect to a cross-sectional area obtained by adding up the cross-sectional areas in the direction perpendicular to the direction of extending the male member and the female member And the ratio of the total cross-sectional area in the direction perpendicular to the direction extending in the band shape of the female occlusal portion is 35% or more, and the second base portion in the direction orthogonal to the direction extending in the band shape of the female member Is a packaging bag with an occlusion device , wherein the laminated body is not laminated with a metal foil layer having a thickness of 1 μm or more. .

Further, in the present invention according to claim 2 , the bite made of a thermoplastic resin composed of a male member and a female member which are engaged with each other is formed on the inner surface of the opening provided on one side of the packaging bag made of a laminate. A packaging bag with an occlusal device mounted along an opening, wherein the male member is provided continuously with the first base and a belt-like first base projecting on one surface of the first base. A band-shaped male occlusal portion, wherein the female member protrudes on one surface of the second base portion and is continuous with the second base portion. An occlusal portion, wherein the male occlusion portion and the female occlusion portion are made of a resin composition including 1 to 30 parts by weight of an inorganic filler with respect to at least 100 parts by weight of a high-density polyethylene resin, and the first base And the second base is made of a polyolefin resin, and the male member is the first member. The base and the male occlusal part are integrally molded members having an unstretched shape retaining property, and the female member has an unstretched shape retaining property in which the second base part and the female mold occlusal portion are integrally molded. A direction extending in a band shape of the male occlusal portion and the female occlusion portion with respect to a cross-sectional area obtained by summing the cross-sectional areas in the directions orthogonal to the direction extending in a band shape of the male member and the female member. The ratio of the total cross-sectional area in the orthogonal direction is 35% or more, and the length of the second base portion is the length of the female occlusal portion in the direction orthogonal to the direction of extending the strip of the female member. 4 times to 5 times, the loop stiffness of the laminate is 0.1 N (Newton) / 15 mm or less, and the length of the unsealed portion in the opening portion in the direction parallel to the bite is 160 mm or less. The laminate is 1 μm thick The above metal foil layers are not laminated .

The present invention according to claim 3 is the packaging bag with an occlusal device according to claim 1 or 2, wherein the inorganic filler is talc, nucleating agent, mica, calcium carbonate, magnesium carbonate, magnesium oxide. And selected from the group consisting of these and mixtures thereof .

Moreover, this invention of Claim 4 is a packaging bag with an occlusion tool in any one of Claim 1 thru | or 3. WHEREIN: The said packaging bag cross | intersects the said occlusion tool with which the said opening part was mounted | worn. A side end seal portion at both ends, the bite extending to both outer edges of the side end seal portion, and a portion intersecting the side end seal portion of the male member and the female member of the bite The male member and the female member are each provided with a notch hole .

The packaging bag of the present invention has a configuration in which an occlusion device made of a member having a shape retaining property of a male member and a female member is mounted along the opening on the inner surface of the opening provided on one side of the packaging bag. Thus, the opening and closing of the opening of the packaging bag can be freely opened, and the occlusion tool has a shape-retaining property that can be plastically deformed, and the occlusal state is released by pulling the male member and the female member by hand. When the opening is opened, the bite is plastically deformed and the open state is maintained, so that the contents can be easily taken out from the packaging bag, and the convenience can be provided to the consumer. Further, in order to close the opening of the packaging bag, the bite is returned to its original state and the male member and the female member of the bite are pressed against each other with fingers, so that the packaging bag can be easily resealed.
The male member includes a belt-shaped first base, and a belt-shaped male occlusal portion that protrudes on one surface of the first base and is provided continuously with the first base, and the female member has a belt-shaped first base. Two base portions and a belt-shaped female occlusal portion projecting on one surface of the second base portion and continuously provided with the second base portion are provided, and the male occlusion portion and the female occlusion portion are at least high-density polyethylene. It consists of a resin composition containing 1 to 30 parts by weight of an inorganic filler with respect to 100 parts by weight of the resin, the first base part and the second base part are made of polyolefin resin, and the first base part and the male occlusal part are integrally formed with the male member. The non-stretched shape-retaining member, and the female member is a member having shape-retaining property in which the second base portion and the female occlusal portion are integrally formed, thereby providing an occlusal tool (chuck) Compared to conventional packaging bags that require two parts of shape retaining material, Reduction Hakare, compared with the conventional manufacturing process of attaching the added two members the packaging bag, Hakare simplification, excellent productivity.
Further, since the male member and the female member are unstretched shape-retaining members, whiskers are not generated even when the articulating tool is rubbed against the guide roll when the packaging bag is manufactured.
Furthermore, the laminated body has a structure in which a metal foil layer having a thickness of 1 μm or more is not laminated, so that even if the packaging bag is incinerated as waste, the metal foil component is contained with respect to the total weight of the laminated body of the packaging bag. Only a small percentage occupies the incinerator.

Moreover, the present invention according to claim 2 is configured such that the loop stiffness of the laminate is 0.1 N (Newton) / 15 mm or less, so that the laminate is opened and deformed by the elasticity of the laminate. Since the force to hold the opening of the bite is superior to the force to return to the state, the shape maintaining function of the opening can be obtained even in a configuration in which the metal foil layer is not laminated on the laminate. Cheap.

Moreover, the present invention according to claim 3 is such that the inorganic filler is selected from the group consisting of talc, nucleating agent, mica, calcium carbonate, magnesium carbonate, magnesium oxide and a mixture thereof. The high-density polyethylene resin of the male occlusal portion and the female occlusal portion increases the rigidity, decreases the elasticity, and makes it possible to maintain the shape retention.

One Embodiment of the packaging bag with an occlusion tool which concerns on this invention is shown, (A) is a front view, (B) is AA sectional view taken on the line. It is an expanded sectional view which shows the state which the biting tool of the part corresponded in the circle | round | yen of FIG. It is explanatory drawing explaining the occlusion tool of the packaging bag with an occlusion tool which concerns on this invention. It is a fragmentary perspective view which shows the state which the packaging bag with an occlusion tool which concerns on this invention opened. It is a front view which shows other embodiment of the packaging bag with an occlusion tool which concerns on this invention.

The above-described present invention will be described in detail below with reference to the drawings.
FIG. 1 shows an embodiment of a packaging bag with an articulating device according to the present invention, in which (A) is a front view, (B) is a cross-sectional view taken along line AA, and FIG. 2 corresponds to the circle in FIG. FIG. 3 is an explanatory view for explaining the bite of the packaging bag with bite according to the present invention, and FIG. 4 shows the opening of the bag with bite according to the present invention. FIG. 5 is a front view showing another embodiment of the packaging bag with an occlusion device according to the present invention. In FIG. 1, 1 and 1 ′ are packaging bags with an occlusion device, and 2 is a front body. 3 is a back body, 4 is a bottom material, 5 is an occlusion device, 6 is a side seal part, 7 is a bottom seal part, 8 is an unsealed part, 9 is a top seal part forming part, and 10 is a male member , 11 is a strip-shaped first base, 12 is a strip-shaped male occlusion, 20 is a female member, 21 is a strip-shaped second base, 22 is a strip-shaped female occlusion, and 30 is a laminate. 1 is a base material layer, 32 is an intermediate layer, 33 is a heat-adhesive resin layer, 40 is a notch hole, N is a notch, O is an opening, and a is a first direction perpendicular to the direction of the male member extending in a strip shape. The length of the base part, b is the length of the male occlusal part in the direction orthogonal to the direction extending in the band shape of the male member, c is the length of the second base part in the direction orthogonal to the direction extending in the band shape of the female member, d is The length of the female occlusal portion in a direction orthogonal to the direction of the female member extending in a strip shape, e indicates the length of the unsealed portion in the direction parallel to the bite, and f indicates the length of the opening.

  FIG. 1 shows an embodiment of a packaging bag with an occlusion device according to the present invention, in which (A) is a front view, (B) is a cross-sectional view taken along line AA, and the packaging bag 1 with an occlusion device is a laminate. 30 is composed of a front body 2, a rear body 3, and a bottom 4, and the front body 2 and the back body 3 are arranged to face each other, and a bottom 4 that is folded inward at the lower end is inserted into the front. An opening O is provided at the upper ends of the body 2 and the back body 3, the peripheral edges except for the opening O are thermally bonded, side end seals 6 and 6 are provided at both ends, and a boat-shaped lower end seal is provided at the bottom of the lower end. It is a form of a standing pouch provided with a portion 7. Furthermore, a thermoplastic resin bite 5 comprising a male member 10 and a female member 20 that mesh with each other on the inner surface of the front barrel 2 and the back barrel 3 is mounted along the opening O. . The occlusal tool 5 mounted on the inner surface of the opening O is for opening and closing the opening O. Usually, the packaging bag 1 with the occlusion tool is released from the occlusion and folded into the bottom material 4 as shown in FIG. 2 and filling the contents from the opening O, the male member 10 and the female member 20 of the bite 5 are engaged with each other as shown in FIG. It is heat-sealed and sealed. A hatched portion and a dotted line in FIG. 1 indicate the upper end seal portion formation scheduled portion 9.

  FIG. 2 is an enlarged cross-sectional view illustrating a state in which a portion of the occlusal tool corresponding to the circle in FIG. 1B is engaged, and an example of the laminated body 30 is shown in this drawing. FIG. 3 is an explanatory view for explaining the bite 5 of the packaging bag 1 with bite according to the present invention. The bite 5 and the laminate 30 of the packaging bag 1 with bite according to the present invention will be described with reference to FIGS.

  As shown in FIGS. 2 and 3, the articulating tool 5 according to an embodiment of the present invention includes a pair of male members 10 and female members 20. The male member 10 is provided with a strip-shaped first base portion 11 and a male occlusal portion 12 that protrudes on one surface of the first base portion 11 and is continuous with the first base portion 11 and has a strip-shaped cross-section. . The female member 20 is provided with a belt-like second base portion 21 and a female occlusal portion 22 that protrudes on one surface of the second base portion 21 and continues to the second base portion 21 and has a belt-like cross-sectional arc shape. The occlusal tool 5 is configured such that a male occlusion portion 12 and a female occlusion portion 22 are engaged with each other.

  As shown in FIG. 3, the male occlusion part 12 and the female occlusion part 22 are made of a resin composition containing 1 to 30 parts by weight of an inorganic filler with respect to at least 100 parts by weight of the high-density polyethylene resin, and the first base part 11 and The second base 21 is made of a polyolefin resin. The male occlusion portion 12 and the female occlusion portion 22 are provided with rigidity and shape retention by including the inorganic filler. If the inorganic filler is less than 1 part by weight with respect to 100 parts by weight of the high-density polyethylene resin, the shape retention as an occlusion tool is not sufficiently exhibited, and the inorganic filler is 30 parts by weight with respect to 100 parts by weight of the high-density polyethylene resin. When it exceeds the part, the fluidity of the resin composition is remarkably deteriorated, and extrusion molding becomes difficult in the production of the shape-retaining tape. The inorganic filler is preferably selected from the group consisting of talc, nucleating agent, mica, calcium carbonate, magnesium carbonate, magnesium oxide and mixtures thereof.

  Usually, since the occlusal device has a convex portion protruding from the male member and a concave portion protruding from the female member, the convex portion and the concave portion become bones, and even if the occlusal device itself is bent, it tends to return to the original linear state. However, in the present invention, the band-shaped male occlusal portion 12 of the male member 10 to be a bone and the band-shaped female occlusal portion 22 of the female member 20 are inorganicly filled with respect to 100 parts by weight of the high-density polyethylene resin. By making the resin composition containing 1 to 30 parts by weight of the object, the elasticity is reduced while giving rigidity to the bite 5, and when the bite 5 is bent, the restoring property of returning to the original linear state is inhibited, The shape retainability in the bent state is effectively acted.

  Moreover, as polyolefin resin used for the 1st base 11 and the 2nd base 21, the thermoadhesive resin and heat which are used for the thermoadhesive resin layer 33 (refer FIG. 2) used as the inner layer of the laminated body 30 of a packaging bag with a bite tool. It is not particularly limited as long as it is made of an adhesive resin, and can be selected and used as appropriate. For example, low density polyethylene, medium density polyethylene, high density polyethylene, linear (linear) Low density polyethylene, polypropylene, ethylene-α olefin copolymer, ethylene-butene copolymer, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, ionomer resin, ethylene-acrylic acid copolymer, ethylene-acrylic It is possible to use a resin composed of one or more resins such as an acid methyl copolymer and an ethylene-methacrylic acid copolymer. Can.

The male member 10 of the bite 5 can be integrally formed by simultaneously extruding the resin used for the first base 11 and the resin composition used for the male occlusal part 12 by, for example, a co-extrusion method. Similarly, the female member 20 can be integrally formed by simultaneously extruding the resin used for the second base portion 21 and the resin composition used for the female occlusal portion 22 by, for example, a co-extrusion method.
By adopting such a configuration, the manufacturing cost can be reduced as compared with a conventional packaging bag that requires two parts of a bite (chuck) and a shape-retaining material, and in addition, a conventional manufacturing process for attaching the two parts to the packaging bag. Compared to, simplification can be achieved. Moreover, since the male member 10 and the female member 20 of the bite 5 are unstretched and are not stretched as in the conventional shape-holding bite, the members have unstretched shape-retainability. When manufacturing the packaging bag, an effect that a whisker is not generated even when the biting tool 5 is rubbed against the guide roll is obtained as compared with the conventional biting tool of the stretched member.

  Since the first base portion 11 and the second base portion 21 of the occlusal tool 5 of the present invention have less shape retention, it is preferable to consider the ratio between the male occlusion portion 12 and the female occlusion portion 22 having shape retention. First, the male occlusal portion 12 with respect to the cross-sectional area (the total area of the hatched portion and the plain portion in FIG. 3) obtained by summing the cross-sectional areas of the male member 10 and the female member 20 in the direction orthogonal to the direction extending in a strip shape. It is preferable that the ratio of the total cross-sectional area of the cross-sectional areas of the female occlusal portion 22 in the direction perpendicular to the direction extending in a strip shape (the total area of the hatched portion in FIG. 3) is 35% or more. If it is less than 35%, sufficient shape retention cannot be obtained.

Next, as shown in FIG. 3, in the left-right direction of the male member 10, the base portion of the male occlusion portion 12 is embedded in the first base portion 11 at the approximate center in the left-right direction, and the base portion of the male occlusion portion 12 is sandwiched. Has flanges on both sides. Further, in the left-right direction of the female member 20, the second base portion 21 has a base portion of the female-type occlusal portion 22 embedded substantially at the center in the left-right direction, and includes flanges on both sides sandwiching the base portion of the female-type occlusal portion 22. Yes. The flange of the male occlusion part 12 and the flange of the female occlusion part 22 make it easy to thermally bond the male occlusion part 12 and the female occlusion part 22 to the heat-adhesive resin layer 33 of the laminate 30, and the occlusal tool. 5 is released to facilitate opening.
Further, as shown in FIG. 3, the length c of the second base portion is 2 to 5 times (c / d) the length d of the female occlusal portion in the direction orthogonal to the direction of the female member 20 extending in a band shape. Preferably there is. When the ratio (c / d) of the length c of the second base portion to the length d of the female occlusal portion is less than twice, it is difficult to thermally bond the occlusal tool 5 to the laminate 30, and more than five times is sufficient. Shape retention cannot be obtained. The ratio (a / b) of the length a of the first base portion to the length of the male occlusion portion (a / b) in the direction orthogonal to the direction in which the male member 10 extends in the band shape is the length c of the second base portion and the female occlusion. Although it is a little smaller than the ratio (c / d) of the length d of the portion, the influence on the shape retention is negligible, and the ratio between the length c of the second base portion and the length d of the female occlusal portion (C / d) was expressed as the ratio of the occlusal portion of the occlusal device.

Next, the laminated body 30 used for the packaging bag 1 with a bite according to the present invention will be described.
As shown in FIG. 2, the laminated body 30 of the front body material 2 and the back body material 3 has a base material layer 31, an intermediate layer 32, and a heat-adhesive resin layer 33 formed by a known technique such as a dry lamination method or an extrusion lamination method. It is laminated. As the base material layer 31, a synthetic resin film having excellent properties in mechanical, physical, chemical and the like can be used. For example, polyester, polyamide, and polypropylene resins can be used. . In addition, as a film using these resins, any of an unstretched film or a stretched film stretched in a uniaxial direction or a biaxial direction can be used. It is sufficient that the thickness and the rigidity of the material can be kept to the minimum necessary, and the cost may be determined in consideration of the cost. Usually, since the synthetic resin film is often printed and printability is required, a stretched film stretched in a uniaxial direction or a biaxial direction is preferable. In addition, a film in which a synthetic resin film is coated with a barrier material such as polyvinyl alcohol or vinylidene chloride and a film in which an inorganic material such as silicon oxide or aluminum oxide is deposited are also used.

  Further, the laminate 30 is provided with an intermediate layer 32 for providing gas barrier properties such as oxygen gas and water vapor gas and / or light shielding properties. Examples of the intermediate layer 32 include polyvinyl alcohol, ethylene- Films obtained by coating polyvinylidene chloride on films such as saponified vinyl acetate copolymer, polyvinylidene chloride, polyolefin films such as polyester, polyamide, polyethylene, polypropylene, ethylene-propylene copolymer, polyvinyl alcohol, etc. A film or the like on which an inorganic substance such as aluminum, silicon oxide, aluminum oxide, indium oxide, tin oxide, or zirconium oxide is deposited can be used. Of course, the intermediate layer can be omitted depending on the protection function required for the contents.

The heat-adhesive resin layer 33 may be a layer formed from a heat-adhesive resin that can be melted by heat and welded to each other, and can be appropriately selected and used depending on the physical properties required for the packaging bag 1 with a bite. For example, low density polyethylene, medium density polyethylene, high density polyethylene, linear (linear) low density polyethylene, polypropylene, ethylene-α olefin copolymer, ethylene-propylene copolymer, ethylene-acetic acid A vinyl copolymer, an ionomer resin, an ethylene-acrylic acid copolymer, an ethylene-methyl acrylate copolymer, an ethylene-methacrylic acid copolymer, etc. It is appropriately selected in consideration of the thermal adhesiveness between the first base portion 11 and the second base portion 21 of the bite 5.
What is important in the present invention is that the laminate 30 is characterized in that a metal foil layer having a thickness of 1 μm or more is not laminated, and a conventional packaging bag having a metal foil layer has a metal foil layer. Although shape retention of the opening is achieved by shape retention, it has a problem of incineration as waste after use, whereas the present invention has a thickness without using a metal foil layer. By using a vapor deposition layer of, for example, aluminum having a thickness of less than 1 μm, the problem of waste incineration does not occur.

  Moreover, it is preferable that the loop stiffness of the laminated body 30 is 0.1 N (Newton) / 15 mm or less. If it exceeds 0.1 N (Newton) / 15 mm, the force for returning the laminate 30 from the bent state to the original state exceeds the force for maintaining the shape of the bite 5, and sufficient shape retention is obtained. Absent.

In the packaging bag 1 with an occlusal device of the present invention, the occlusal device 5 has a shape-retaining property, a male member 10 in which a first base portion 11 and a male-type occlusal portion 12 having shape-retaining properties are integrated, and a second base portion 21. Since the female-type occlusal portion 22 having the integrated female member 20 is configured, it can be manufactured by a conventional articulator-attached bag making machine. In addition, the packaging bag 1 with a bite is not limited to the self-supporting bag shown in the embodiment, and can be used for a flat bag, a gusset bag, a three-sided bag, and the like.
However, as shown in FIG. 1, the length e of the unsealed portion in the opening O in the direction parallel to the bite 5 is preferably 40 mm or more and 220 mm or less. If it exceeds 220 mm, the force to bend and deform the opening portion of the packaging bag to return to the original state exceeds the force to keep the shape of the articulating tool, and the shape retaining property of the opening portion is inferior.

  Next, the shape retention of the packaging bag 1 with the bite according to the present invention will be described with reference to FIGS. First, the bite of the bite 5 is released from the opening O, the contents are filled in the packaging bag 1 with bite, the bite 5 is bittened, and the upper seal portion formation scheduled portion 9 is sealed and sealed. At the time of use, the upper end seal portion formation scheduled portion 9 that is torn and sealed from the notch N of the bite packaging bag 1 in the left-right direction is cut out. Then, when the upper ends of the front body 2 and the back body 3 of the unsealed part 8 are picked with fingers and pulled in the opposite directions, the occlusion of the male occlusion part 12 and the female occlusion part 22 is released, and the occlusal device The attached packaging bag 1 is opened. As shown in FIG. 4, the male member 10 and the female member 20 are deformed, and the contents of the male occlusal portion 12 and the female occlusal portion 22 are held open so that the contents can be easily opened. Can be taken out. Further, when the male occlusal portion 12 of the male member 10 and the female occlusal portion 22 of the female member 20 are pressed against each other with fingers, the bite is returned to the original state, and the packaging bag 1 with the bite is easily resealed. .

  FIG. 5: is a front view which shows other embodiment of the packaging bag with an occlusion tool of this invention. As shown in FIG. 5, the packaging bag 1 ′ of the other embodiment includes a side end seal portion 6, 6 at both ends that intersects the bite 5 attached along the opening O, and the bite 5 is a side end seal. It extends to both outer edges of the parts 6 and 6, and a cutout hole 40 is provided in each of the male member 10 and the female member 20 at a portion intersecting the side end seal portion of the male member 10 and the female member 20. ing. The cutout hole 40 can be formed by punching a part of the male member 10 and the female member 20 with a die having a predetermined shape. When the occlusal tool 5 is attached to the thermal adhesive resin layer 33 of the laminate 30 of the occlusion packaging bag 1 by forming the notch hole 40, the notch holes 40 and 40 are attached to the occlusion packaging bag 1. By thermally bonding in correspondence with the side end seal portions 6 and 6, the sealability of the portions can be easily secured. That is, since the part is usually heat plate sealed from the outer surface of one laminate 30, in order to be crimped with excessive heat and pressure to integrate with the inner surface of the other laminate 30 through the bite 5, There was a problem in that heat wrinkles occurred in the part and the aesthetic appearance was impaired, and excessive resin crushed by the hot plate of the biting tool 5 flowed into the packaging bag with the biting tool. The above-mentioned inconvenience can be eliminated by thermal bonding in correspondence with the seal portions 6 and 6. Furthermore, as shown in FIG. 5, the cutout hole 40 can be directly bonded to the surfaces of the heat-adhesive resin layer 33 of the front body 2 and the back body 3, so that the sealability at the part can be easily secured. The other parts are the same as those of the embodiment, and the same reference numerals are given and the description is omitted.

  Next, an Example is given and the packaging bag with a bite of this invention is explained in full detail.

[Production of articulator]
Use a resin composition containing talc in high-density polyethylene resin for the male occlusal part, use polyolefin resin for the first base part, co-extrusion molding using a predetermined male mold, cool and cool the male member 10 was produced. Similarly, a resin composition containing talc in high-density polyethylene resin is used for the female occlusion part, polyolefin resin is used for the second base part, and co-extrusion molding is performed using a predetermined female mold, and then cooled. The female member 20 was produced. After cooling, the female occlusal portion 22 of the female member 20 and the male occlusal portion 12 of the male member 10 were occluded, and a belt-like occlusal tool was wound up. As a resin composition of the male occlusion part and the female occlusion part, the content of talc as an inorganic filler with respect to 100 parts by weight of the high-density polyethylene resin is 0 part by weight, 1 part by weight, 3 parts by weight, and 30 parts by weight. Each was used. In addition, although the occlusion tool was produced also about the resin composition which made content of talc 35 weight part with respect to 100 weight part of high density polyethylene resin, the extrusion ability was bad and preparation was abandoned.
In addition, the cross-sectional area of the occlusal tool is a direction extending in the band shape of the male occlusal portion and the female occlusion portion with respect to the cross-sectional area obtained by adding the cross-sectional areas in the direction orthogonal to the direction extending in the band shape of the male member and the female member. The ratio of the total cross-sectional area in the direction perpendicular to the cross-sectional area (hereinafter referred to as cross-sectional area ratio) was 25% and 35%, respectively. In addition, regarding the ratio 25% occupied by the cross-sectional area, the width of the base portion (flange) is 7 mm, and the length of the second base portion is 4 times the length of the female occlusal portion in the direction orthogonal to the direction of extending the strip of the female member. Doubled. Hereinafter, the ratio of the length of the second base portion to the length of the female occlusal portion in the direction orthogonal to the direction in which the female member extends in the band shape is referred to as a base / occlusion portion ratio. For the ratio 35% occupied by the cross-sectional area, the width of the base (flange) was 13 mm, and the base / occlusion portion ratio was 8 times.

(Production of laminate)
Next, a biaxially stretched polyethylene terephthalate film (PET) having a thickness of 12 μm is used as the base material layer 31, and an aluminum-deposited polyethylene terephthalate film (VMPET) having a thickness of 12 μm is used as the intermediate layer 32. As a layer 33, a linear low density polyethylene film (LLDPE) having a thickness of 40 μm is used, and laminated by a dry lamination method (DL) using a two-component curable urethane adhesive, and PET 12 μm / DL / VMPET 12 μm / DL / A laminate A having a configuration of LLDPE of 40 μm was produced.
Further, a biaxially stretched polyethylene terephthalate film (PET) having a thickness of 12 μm is used as the base material layer 31, and a biaxially stretched nylon film (ON) having a thickness of 15 μm is used as the intermediate layer 32. A laminate having a structure of PET 12 μm / DL / ON 15 μm / DL / CPP 70 μm using unstretched polypropylene (CPP) having a thickness of 70 μm as 33 and laminating by a dry lamination method (DL) using a two-component curable urethane adhesive. Body B was prepared. About the said laminated bodies A and B, the loop stiffness value was measured with the following method and it was set as the waist strength of the laminated body. The results are shown in Table 1.
(Loop stiffness measurement method)
The laminate was cut into a strip with a width of 15 mm and a length of 120 mm and having a long side in the MD direction as a test sample. Using a loop stiffness tester (manufactured by Toyo Seiki Seisakusho Co., Ltd.), the temperature was 23 ° C. and the humidity was 50%. The loop stiffness value in the MD direction with a loop circumference of 100 mm was measured.

  Next, by combining the above-mentioned bite, the laminated body A and the laminated body B, respectively, the packaging bag with the bite of the shape C having the left and right outer dimensions of 230 mm, the upper and lower outer dimensions of 240 mm, and the bottom material folding dimension of 40 mm shown in FIG. Produced. Moreover, the packaging bag with an occlusion implement shown in FIG. 1 having a shape D having a left and right outer dimension of 170 mm, an upper and lower outer dimension of 160 mm, and a bottom material folding dimension of 35 mm was produced. Further, the widths of the side end seal portions for producing the packaging bag with an occlusion device shown in FIG. 1 having a shape E having a left and right outer dimension of 260 mm, an upper and lower outer dimension of 240 mm, and a bottom material folding dimension of 40 mm were 5 mm each. Therefore, the length of the unsealed part e in the direction parallel to the bite is 220 mm for the package bag with the bite of shape C, 160 mm for the package bag with the bite of shape D, and the package with the bite of shape E The bag was 250 mm. A packaging bag with an occlusion device was produced by variously combining the shape of the occlusion device, the laminate, and the bag. In Examples 1-8 and Comparative Example 1, the talc content, the cross-sectional area ratio, the base / occlusion ratio of the male occlusal portion and the female occlusal portion of the occlusion device, and the laminate and bag shape used Table 2 shows the length of the unsealed portion.

  About the packaging bag with an occlusion tool of Examples 1-8 and Comparative Example 1, shape retention property was evaluated. The shape retention evaluation method and evaluation criteria are such that the bite of the bite packaging bag is released so that the side end seals facing each other are in contact with each other, that is, the male and female members of the bite. Press and compress for 10 seconds with both hands so that the central portions in the belt-like direction are separated from each other at maximum, then release the pressure and leave it for 1 minute to measure the length f of the opening. The ratio of the length f of the opening to the length e (f / e) was calculated, and 1/3 or more was evaluated as ◯, less than 1/3 to 1/4 or more as Δ, and less than 1/4 as x. The evaluation results are shown in Table 2.

  As shown in Table 2, in Examples 1 to 8 produced above, good shape retention was obtained. Although Examples 1, 3, and 5-7 were slightly inferior to the shape-retaining property of Examples 2 and 8, the contents could be easily taken out. In Comparative Example 1, the shape retention was insufficient, and the contents could not be removed unless the opening was opened again.

DESCRIPTION OF SYMBOLS 1, 1 'Packaging bag with an occlusion tool 2 Front body material 3 Back body material 4 Bottom material 5 Occlusion tool 6 Side end seal part 7 Lower end seal part 8 Unsealed part 9 Upper end seal part formation planned part 10 Male member 11 Band-shaped first One base portion 12 Band-shaped male occlusion portion 20 Female member 21 Band-shaped second base portion 22 Band-shaped female occlusion portion 30 Laminate 31 Base material layer 32 Intermediate layer 33 Thermal adhesive resin layer 40 Notch hole N notch O opening a Length of the first base portion in a direction orthogonal to the direction of the male member extending in the band shape b Length of the male occlusal portion in a direction orthogonal to the direction of the male member extending in the band shape c orthogonal to the direction of the female member extending in the band shape The length of the second base portion in the direction d The length of the female occlusal portion in the direction orthogonal to the direction of the female member extending in the strip shape e The length of the unsealed portion in the direction parallel to the occlusal device f The length of the opening

Claims (4)

With an occlusion device in which an occlusion device made of a thermoplastic resin composed of a male member and a female member that are engaged with each other is mounted along the opening on the inner surface of the opening provided on one side of the laminated packaging bag A packaging bag,
The male member includes a belt-shaped first base, and a belt-shaped male occlusal portion that protrudes on one surface of the first base and is provided continuously with the first base.
The female member includes a belt-shaped second base portion, and a belt-shaped female occlusal portion that is provided continuously with the second base portion so as to protrude on one surface of the second base portion.
The male occlusion part and the female occlusion part are made of a resin composition containing 1 to 30 parts by weight of an inorganic filler with respect to at least 100 parts by weight of a high-density polyethylene resin, and the first base part and the second base part are polyolefins. Made of resin,
The male member is a member having an unstretched shape retaining property in which the first base portion and the male occlusal portion are integrally formed,
The female member is a member having an unstretched shape retaining property in which the second base portion and the female occlusal portion are integrally formed,
The cross section of the male member and the female member in the direction orthogonal to the direction extending in the band shape is cut off in the direction orthogonal to the direction of the male occlusion portion and the female occlusion portion extending in the band shape. The proportion of the total cross-sectional area is 35% or more,
The length of the second base portion is 4 to 5 times the length of the female occlusal portion in a direction orthogonal to the direction of the female member extending in a strip shape,
The laminated body is a packaging bag with an occlusal device, wherein a metal foil layer having a thickness of 1 μm or more is not laminated. With an occlusion device in which an occlusion device made of a thermoplastic resin composed of a male member and a female member that are engaged with each other is mounted along the opening on the inner surface of the opening provided on one side of the laminated packaging bag A packaging bag,
The male member includes a belt-shaped first base, and a belt-shaped male occlusal portion that protrudes on one surface of the first base and is provided continuously with the first base.
The female member includes a belt-shaped second base portion, and a belt-shaped female occlusal portion that is provided continuously with the second base portion so as to protrude on one surface of the second base portion.
The male occlusion part and the female occlusion part are made of a resin composition containing 1 to 30 parts by weight of an inorganic filler with respect to at least 100 parts by weight of a high-density polyethylene resin, and the first base part and the second base part are polyolefins. Made of resin,
The male member is a member having an unstretched shape retaining property in which the first base portion and the male occlusal portion are integrally formed,
The female member is a member having an unstretched shape retaining property in which the second base portion and the female occlusal portion are integrally formed,
The cross section of the male member and the female member in the direction orthogonal to the direction extending in the band shape is cut off in the direction orthogonal to the direction of the male occlusion portion and the female occlusion portion extending in the band shape. The proportion of the total cross-sectional area is 35% or more,
The length of the second base portion is 4 to 5 times the length of the female occlusal portion in a direction orthogonal to the direction of the female member extending in a strip shape,
The loop stiffness of the laminate is 0.1 N (Newton) / 15 mm or less, and the length of the unsealed part in the direction parallel to the occlusal device in the opening is 160 mm or less,
The laminated body is a packaging bag with an occlusal device, wherein a metal foil layer having a thickness of 1 μm or more is not laminated. The occlusion device according to claim 1 or 2, wherein the inorganic filler is selected from the group consisting of talc, nucleating agent, mica, calcium carbonate, magnesium carbonate, magnesium oxide, and a mixture thereof. Packing bag with. The packaging bag is provided with side end seal portions at both ends intersecting the occlusion device mounted along the opening, and the occlusion device extends to both outer edges of the side end seal portion. 4. A notch hole is provided in each of the male member and the female member at a portion intersecting the side end seal portion of the male member and the female member. A packaging bag with a bite according to any one of the above.

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