JP2016116661A - Fitting tool and bag body with fitting tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fitting tool hardly adsorbing volatile components generated from a content stored in a bag body, and bag body with the fitting tool, including the fitting tool.SOLUTION: A fitting tool 10 includes a pair of belt-like first fitting member 12 and a second fitting member 14. The first fitting member 12 includes a belt-like first base material 16, and a first fitting part 18 provided on the first base material 16 along the longitudinal direction. The second fitting member 14 includes a belt-like second base material 20, and a second fitting part 22 provided on the second base material 20 along the longitudinal direction and detachably fitted to the first fitting part 18. The first base material 18, the second base material 20, the first fitting part 18, and the second fitting part 22 include annular olefin resin.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a fitting tool and a bag body with a fitting tool.

  As a bag body for storing food, medicine, miscellaneous goods, etc., a bag main body for storing contents, and a fitting tool attached to an inner surface in the vicinity of the opening of the bag main body so as to be able to open and close the opening. And the bag body with a fitting tool which comprises these is widely used. As a fitting tool, for example, a first fitting member including a strip-shaped base material and a male fitting portion provided along the longitudinal direction of the base material, a strip-shaped base material, and the longitudinal direction of the base material And a second fitting member provided with a female fitting portion provided along the line. By opening and closing the male fitting part and the female fitting part in the fitting tool attached to the bag body, the opening and closing of the opening part of the bag body can be repeated.

  As the material for the fitting, linear low density polyethylene (LLDPE), ethylene / methacrylic acid copolymer (EMMA), or the like is usually used. However, in such a fitting, when the content containing a volatile component is accommodated in the bag body, the volatile component is adsorbed to the fitting, and the effect of the volatile component is reduced. Specifically, when a patch or tape containing a volatile drug such as L menthol, camphor, or methyl salicylate is contained in the bag, the drug is adsorbed by the fitting and the medicinal component is reduced. To do.

Patent Document 1 discloses a bag body in which the innermost layer of the bag body is formed of a resin (polyester, polyamide, polyacrylonitrile, polyvinylidene chloride, ethylene / vinyl alcohol copolymer, etc.) excellent in non-adsorbability. . However, in the bag body of Patent Document 1, adsorption of volatile components by the bag body is suppressed, but adsorption of volatile components by the fitting tool cannot be sufficiently suppressed.
Therefore, in general, considering the amount to be adsorbed by the fitting tool, the content of the volatile component that is expected to be adsorbed in advance is contained in the bag body, so that the volatile property is obtained. The effect by the ingredient is secured. However, this method increases the cost, particularly when the drug is expensive.

  In patent document 2, each of the 1st fitting member provided with the male fitting part and the 2nd fitting member provided with the female fitting part attached to the inner surface of the bag main body is covered with a gas barrier film. A sealed bag is disclosed. In the bag body of patent document 2, adsorption | suction of the volatile component by a fitting tool is reduced by covering a fitting tool with a gas barrier film. However, it is difficult to integrally form the fitting tool and the gas barrier film, and it is complicated to attach them separately. In addition, the gas barrier film may be peeled off from the fitting and the effect of suppressing adsorption of volatile components may not be obtained.

JP 2012-158378 A JP 2002-173154 A

  An object of the present invention is to provide a fitting that hardly adsorbs a volatile component generated from contents stored in a bag body, and a bag with a fitting provided with the fitting.

  The fitting tool of the present invention includes a pair of belt-like first fitting members and a second fitting member, and the first fitting member is elongated to the belt-like first base material and the first base material. A first fitting portion provided along a direction, wherein the second fitting member is provided along a longitudinal direction on the second base material, and the second base material, A first fitting portion and a second fitting portion that is detachably fitted, and at least a portion of the first base material and / or the second base material on the opposite surface side is a cyclic olefin fat. It is characterized by containing.

  In the fitting tool of the present invention, it is preferable that one or both of the first fitting portion and the second fitting portion contain a cyclic olefin resin.

  The bag body with a fitting tool of the present invention comprises a bag main body for storing contents, and the fitting tool of the present invention attached to the inner surface of the bag main body.

  An object of the present invention is to provide a fitting that hardly adsorbs a volatile component generated from contents stored in a bag body, and a bag with a fitting provided with the fitting.

It is sectional drawing which showed an example of the fitting tool of this invention. It is sectional drawing which showed the other example of the fitting tool of this invention. It is sectional drawing which showed the other example of the fitting tool of this invention. It is sectional drawing which showed the other example of the fitting tool of this invention. It is sectional drawing which showed the other example of the fitting tool of this invention. It is sectional drawing which showed the other example of the fitting tool of this invention. It is sectional drawing which showed the other example of the fitting tool of this invention. It is sectional drawing which showed an example of the bag body with a fitting tool of this invention. It is AA sectional drawing of the bag body with a fitting tool of FIG. It is a perspective view which shows a mode that the bag body with a fitting tool of FIG. 8 was opened.

<Fitting tool>
The fitting tool of this invention is a fitting tool attached to the inner surface of the bag main body which accommodates the content so that the opening part formed in this bag main body may be followed. Hereinafter, an example of the fitting tool of the present invention will be shown and described in detail.

As shown in FIG. 1, the fitting 10 of the present embodiment includes a pair of strip-like first fitting members 12 and second fitting members 14.
The first fitting member 12 includes a belt-like first base material 16 and a first fitting portion including a male-side fitting portion of a protrusion provided on the facing surface 16a of the first base material 16 along the longitudinal direction. 18. The second fitting member 14 is provided along the longitudinal direction on the belt-shaped second base material 20 and the opposing surface 20a of the second base material 20 and is detachably fitted to the first fitting portion 18. And a second fitting portion 22 including a fitting portion.
The first base material 16 and the second base material 20 in this example are formed of a single layer film.

  When the fitting 10 is attached to the bag body, the first side edge 16b of the first base material 16 and the first side edge 20b of the second base material 20 are formed on the opening side where the bag body is formed. It attaches so that the 2nd side edge 16c of the 1 base material 16 and the 2nd side edge 20c of the 2nd base material 20 may become the contents side of a bag main body.

The first fitting portion 18 is provided on the facing surface 16 a of the first base material 16 along the longitudinal direction of the first base material 16. The first fitting portion 18 includes a trunk portion 18a that rises from the facing surface 16a of the first base material 16, and a head portion 18b that is provided at the distal end portion of the trunk portion 18a and has a substantially semicircular cross section larger than the trunk portion 18a.
The second fitting portion 22 is provided on the facing surface 20 a of the second base material 20 along the longitudinal direction of the second base material 20. The second base material 20 includes a first arm portion 22a and a second arm portion 22b that rise in an arc shape from the opposing surface 20a of the second base material 20, and the concave portion 22c is formed by the first arm portion 22a and the second arm portion 22b. Is formed.
The first fitting portion 18 and the second fitting portion 22 can be detachably fitted by fitting the head portion 18b of the first fitting portion 18 into the recess 22c of the second fitting portion 22. ing.

  The cross-sectional shapes of the first fitting portion 18 and the second fitting portion 22 are such that the opening and closing of the opening of the bag body can be repeated by attaching and detaching the first fitting portion 18 and the second fitting portion 22 to each other. Any known cross-sectional shape may be employed.

  In the fitting 10, the first fitting member 12 and the second fitting member 14 contain a cyclic olefin resin. That is, all of the 1st base material 16, the 2nd base material 20, the 1st fitting part 18, and the 2nd fitting part 22 contain cyclic olefin resin. Thereby, even when the content containing volatile components, such as a poultice, is accommodated in the bag body to which the fitting tool 10 is attached, the volatile component is less likely to be adsorbed to the fitting tool 10. Therefore, it is suppressed that the amount of a volatile component decreases in the state accommodated in a bag main body, and the effect by this volatile component becomes low.

The cyclic olefin resin is a polyolefin resin having a cyclic structure. Examples of the cyclic olefin resin include an addition polymer of an alicyclic compound having a double bond (cyclic olefin), a ring-opening polymer of an alicyclic compound having a double bond, an α-olefin, and a double bond. And a copolymer with an alicyclic compound. Among these, as the cyclic olefin resin, a copolymer of an α-olefin and an alicyclic compound having a double bond (hereinafter also referred to as “cyclic olefin resin (A)”) is preferable.
Examples of the α-olefin include ethylene and propylene. One α-olefin may be used alone, or two or more α-olefins may be used in combination.
Examples of the alicyclic compound include cyclohexene, dicyclopentadiene, norbornene, and tetracyclododecene. An alicyclic compound may be used individually by 1 type, and may use 2 or more types together.

  The cyclic olefin resin (A) may have units derived from other monomers copolymerizable with the α-olefin and the alicyclic compound as long as the effects of the present invention are not impaired. Another monomer may be used individually by 1 type and may use 2 or more types together.

  5-50 mass% is preferable and, as for the ratio of the unit derived from the alpha olefin with respect to all the units of cyclic olefin resin (A), 10-40 mass% is more preferable. If the proportion of the unit derived from α-olefin is at least the lower limit value, it has appropriate flexibility, so that a long object can be wound around a core or stored in a coil in a storage box. If the proportion of units derived from α-olefin is not more than the upper limit value, sufficient drug non-adsorption can be obtained.

  50-95 mass% is preferable and, as for the ratio of the unit derived from an alicyclic compound with respect to all the units of cyclic olefin resin (A), 60-90 mass% is more preferable. If the proportion of units derived from the alicyclic compound is not less than the lower limit, sufficient drug non-adsorption can be obtained. If the ratio of the unit derived from an alicyclic compound is less than or equal to the upper limit value, it has appropriate flexibility, so that a long object can be wound around a winding core or stored in a coil shape in a storage box.

  60 mass% or more is preferable, as for the ratio of the total of the ratio of the unit derived from the alpha olefin with respect to all the units of cyclic olefin resin (A) and the unit derived from an alicyclic compound, 80 mass% or more is preferable, and 100 mass. % Is particularly preferred.

60-180 degreeC is preferable and, as for the glass transition temperature of cyclic olefin resin, 70-140 degreeC is more preferable. If the glass transition temperature of the cyclic olefin resin is equal to or higher than the lower limit, sufficient drug non-adsorbability can be obtained. If the glass transition temperature of the cyclic olefin resin is not more than the upper limit value, sufficient flexibility can be obtained.
The glass transition temperature is a value measured according to ISO11357-1,2,3.

Commercially available products of cyclic olefin resins include “ZEONOR (registered trademark)” manufactured by ZEON Corporation, “TOPAS (registered trademark)” manufactured by Topas Advanced Polymers, and “APEL® (registered trademark) manufactured by Mitsui Chemicals, Inc. ) "And the like.
A cyclic olefin resin may be used individually by 1 type, and may use 2 or more types together.

The first base material 16, the second base material 20, the first fitting portion 18, and the second fitting portion 22 in the fitting tool 10 may contain a resin other than the cyclic olefin resin.
As other resins, resins other than cyclic olefin resins used in known fittings can be used, for example, nylon, linear low density polyethylene, high pressure method low density polyethylene, high density polyethylene, polypropylene, ethylene -(Meth) acrylic acid alkyl ester copolymer, olefin elastomer, styrene elastomer, ethylene-vinyl acetate copolymer, ionomer, polyvinyl alcohol and the like.
Another resin may be used individually by 1 type, and may use 2 or more types together.

20-100 mass% is preferable and, as for the ratio of the total mass of cyclic olefin resin with respect to the total mass of resin which forms the 1st base material 16, 30-100 mass% is more preferable. If the said ratio is more than a lower limit, adsorption | suction to the 1st base material 16 which arises from the content accommodated in the bag main body will be easy to be suppressed. Moreover, when it is set as the aspect by which a part by the side of the opening part of the 1st base material 16 is cut | disconnected with a bag main body at the time of opening, cutting | disconnection becomes easier. If the said ratio is below an upper limit, the softness | flexibility of the 1st base material 16 will become more favorable.
A preferable range of the ratio of the total mass of the cyclic olefin resin to the total mass of the resin forming the second base material 20 is the same as that of the first base material 16. Further, the preferable range of the ratio of the cyclic olefin resin in the first fitting portion 18 and the second fitting portion 22 is the same as that in the case of the first base material 16.

  For the first base material 16, the second base material 20, the first fitting portion 18, and the second fitting portion 22, known stabilizers, antioxidants, lubricants, antistatic agents, coloring agents, and the like as necessary. These additives may be added.

The thickness of the first base material 16 is preferably 0.1 to 0.4 mm, and more preferably 0.12 to 0.3 mm. If the thickness of the 1st base material 16 is more than a lower limit, when a fitting tool is heat-welded to a bag, sufficient seal strength is obtained. If the thickness of the 1st base material 16 is below an upper limit, sufficient softness | flexibility will be obtained.
A preferred embodiment of the thickness of the second substrate 20 is the same as a preferred embodiment of the thickness of the first substrate 16. The thickness of the first base material 16 and the second base material 20 may be the same or different.

2-60 mm is preferable and, as for the width | variety of the 1st base material 16, 3-40 mm is more preferable. If the width | variety of the 1st base material 16 is more than a lower limit, when seal | sticking a fitting tool to a bag body, sufficient sealing intensity | strength will be obtained. If the width | variety of the 1st base material 16 is below an upper limit, handling will be easy and a deformation | transformation of a fitting tool will not arise easily at the time of distribution | circulation and storage.
A preferred embodiment of the width of the second substrate 20 is the same as a preferred embodiment of the width of the first substrate 16. The widths of the first base material 16 and the second base material 20 may be the same or different.

(Production method)
The manufacturing method of the fitting 10 is not particularly limited except that a cyclic olefin resin is used, and a known method can be adopted. For example, the method of manufacturing the 1st fitting member 12 and the 2nd fitting member 14 by extrusion molding, etc. are mentioned.

(Function and effect)
In the fitting tool of the present invention described above, at least the portion on the facing surface side in either one or both of the first base material and the second base material contains a cyclic olefin resin. Thereby, even if the content which contains a volatile component is accommodated in the bag main body which attached the fitting tool of this invention, it will suppress that this volatile component adsorb | sucks to a fitting tool. Therefore, it can be suppressed that the amount of volatile components of the contents is reduced when stored in the bag body and the effect of the volatile components is reduced, and the amount of adsorption to the fitting is taken into consideration. It is not necessary to previously contain an excessive amount of volatile components in the contents.
Moreover, in the fitting of this invention, the adsorption suppression effect of a volatile component is further made into the aspect in which either one or both of a 1st fitting part and a 2nd fitting part contain cyclic olefin resin. Further increase.

  The fitting tool of the present invention is not limited to the fitting tool 10 described above. For example, the fitting device of the present invention can include the first base material and the first base material as long as at least the portion on the facing surface side of either the first base material or the second base material contains a cyclic olefin resin. 2 The base material may be formed of a multilayer film.

For example, the fitting 10A illustrated in FIG. 2 may be used. In FIG. 2, the same parts as those in FIG.
The fitting 10A includes a first base material 16A made of a multilayer film instead of the first base material 16 made of a single layer film, and a second base made of a multilayer film instead of the second base material 20 made of a single layer film. It is the same as the fitting tool 10 except that the base material 20A is provided.

16 A of 1st base materials are laminated films which consist of the non-adsorption layer 24 by the side of the opposing surface 16a, and the sealing layer 26 which has resin other than cyclic olefin resin laminated | stacked on the outer surface side rather than the non-adsorption layer 24 as a main component. is there. 20 A of 2nd base materials are laminated films which consist of the non-adsorption layer 28 by the side of the opposing surface 20a, and the sealing layer 30 which has resin other than cyclic olefin resin laminated | stacked on the outer surface side rather than the non-adsorption layer 24 as a main component. is there.
In the present invention, “having a resin other than the cyclic olefin resin as a main component” means that the ratio of the total mass of the resin other than the cyclic olefin resin is more than 50% by mass with respect to the total mass of the resin in the layer. It means that.

The non-adsorption layer 24 and the non-adsorption layer 28 are layers containing a cyclic olefin resin.
The non-adsorbing layer 24 and the non-adsorbing layer 28 may contain a resin other than the cyclic olefin resin. In addition, the non-adsorbing layer 24 and the non-adsorbing layer 28 may be added with known additives such as a stabilizer, an antioxidant, a lubricant, an antistatic agent, and a colorant as necessary.

  A preferable range of the ratio of the total mass of the cyclic olefin resin to the total mass of the resins forming the non-adsorbing layers 24 and 28 is the same as that of the single-layer first base material 16 in the fitting 10.

The thickness of the non-adsorbing layer 24 is preferably 0.01 to 0.39 mm, and more preferably 0.02 to 0.29 mm. If the thickness of the non-adsorbing layer 24 is not less than the lower limit value, sufficient drug non-adsorbing property can be obtained. If the thickness of the non-adsorbing layer 24 is equal to or less than the upper limit value, sufficient flexibility can be obtained.
The preferred embodiment of the thickness of the non-adsorbing layer 28 is the same as the preferred embodiment of the thickness of the non-adsorbing layer 24.

As the seal layer 26, a known seal layer used for a base material of a fitting tool can be adopted. For example, linear low density polyethylene, high pressure method low density polyethylene, high density polyethylene, polypropylene, ethylene- (meta) Examples include acrylic acid alkyl ester copolymers, olefin elastomers, styrene elastomers, acid-modified olefin resins, ethylene-vinyl acetate copolymers, and ionomers. The sealing layer 26 may contain a cyclic olefin resin, but a resin other than the cyclic olefin resin is a main component, and the amount of the cyclic olefin resin is less than that of the non-adsorbing layers 24 and 28. The aspect of the seal layer 30 is the same as the aspect of the seal layer 26.
The seal layer 26 and the seal layer 30 may be added with known additives such as a stabilizer, an antioxidant, a lubricant, an antistatic agent, and a colorant as necessary.

The thickness of the seal layer 26 is preferably 0.01 to 0.2 mm, and more preferably 0.05 to 0.1 mm. If the thickness of the seal layer 26 is equal to or greater than the lower limit value, sufficient seal strength can be obtained when the fitting tool is thermally welded to the bag body. If the thickness of the seal layer 26 is not more than the upper limit value, sufficient flexibility can be obtained.
A preferred embodiment of the thickness of the seal layer 30 is the same as a preferred embodiment of the thickness of the seal layer 26.

  Even in the fitting tool 10A, since the non-adsorbing layer 24 and the non-adsorbing layer 28 are provided, even if the content containing the volatile component is accommodated in the bag body to which the fitting tool 10A is attached, the volatile component is not contained. Adsorption to the fitting tool 10A is suppressed.

Moreover, the fitting 10B illustrated in FIG. 3 may be sufficient. The same parts in FIG. 3 as those in FIG.
The fitting 10 </ b> B includes a first base material 16 </ b> B instead of the first base material 16, a second base material 20 </ b> B instead of the second base material 20, and a first component mainly composed of a resin other than the cyclic olefin resin. The fitting tool 10 is the same as the fitting tool 10 except that the first fitting part 18B and the second fitting part 22B are provided.

The first base material 16B is laminated on the first side edge 16b side of the sealing layer 32 mainly composed of a resin other than the cyclic olefin resin and the first fitting portion 18B on the facing surface 16a side of the sealing layer 32. The first non-adsorbing layer 34 and the second non-adsorbing layer 36 stacked on the second side edge 16c side of the first fitting portion 18B on the facing surface 16a side of the seal layer 32 are provided.
The second base material 20B is laminated on the first side edge 20b side with respect to the seal layer 38 mainly composed of a resin other than the cyclic olefin resin and the second fitting portion 22B on the facing surface 20a side of the seal layer 38. A third non-adsorbing layer 40, and a fourth non-adsorbing layer 42 stacked on the second side edge 20c side of the second fitting portion 22B on the facing surface 20a side of the seal layer 38.

As an aspect of the 1st non-adsorption layer 34, the 2nd non-adsorption layer 36, the 3rd non-adsorption layer 40, and the 4th non-adsorption layer 42, the aspect similar to the aspect explained by non-adsorption layer 24 is mentioned, and a desirable aspect Is the same.
As an aspect of the sealing layer 32 and the sealing layer 38, the aspect similar to the aspect demonstrated with the sealing layer 26 is mentioned.

The 1st fitting part 18B and the 2nd fitting part 22B are the same as the 1st fitting part 18 and the 2nd fitting part 22 except having formed resin other than cyclic olefin resin as a main component. Examples of the resin other than the cyclic olefin resin include other resins described above. The 1st fitting part 18 and the 2nd fitting part 22 may be formed with the same resin, and may be formed with different resin.
The sealing layer 32 and the first fitting portion 18B of the first base material 16B may be formed of the same resin or may be formed of different resins. Further, the sealing layer 38 and the second fitting portion 22B of the second base material 20B may be formed of the same resin or different resins.

  Since the fitting tool 10B also includes the first non-adsorbing layer 34, the second non-adsorbing layer 36, the third non-adsorbing layer 40, and the fourth non-adsorbing layer 42, it volatilizes in the bag body to which the fitting tool 10B is attached. Even if the contents containing the sex component are accommodated, the volatile component is suppressed from being adsorbed to the fitting 10B.

Moreover, the fitting tool 10C illustrated in FIG. 4 may be used. The same parts in FIG. 4 as those in FIG.
The fitting 10C is fitted except that it further includes a rib 44 that rises from the second fitting portion 22B of the opposing surface 20a on the side closer to the contents than the second fitting portion 22B in the second base material 20B. The same as the combination 10B. That is, 10 C of fitting tools are further provided with the rib 44 which stands | starts up from the 2nd fitting part 22B vicinity of the opposing surface 20a between the 2nd fitting part 22B and the 2nd side edge 20c in the 2nd base material 20B. Is the same as the fitting 10B.

The rib 44 contains a cyclic olefin resin. The rib 44 adsorbs volatile components generated from the contents stored in the bag body to the first fitting portion 18B and the second fitting portion 22B, which are formed mainly of a resin other than the cyclic olefin resin. Is easily suppressed.
The rib 44 may contain a resin other than the cyclic olefin resin. Further, the rib 44 may be added with known additives such as a stabilizer, an antioxidant, a lubricant, an antistatic agent, and a colorant as necessary.

  20-100 mass% is preferable and, as for the ratio of the total mass of cyclic olefin resin with respect to the total mass of resin which forms the rib 44, 40-100 mass% is more preferable. If the said ratio is more than a lower limit, adsorption | suction to the 1st fitting part 18B and the 2nd fitting part 22B of the volatile component which arises from the content accommodated in the bag main body will be easy to be suppressed. If the said ratio is below an upper limit, sufficient softness | flexibility will be acquired.

The ribs 44 are preferably formed such that the tips of the ribs 44 are in contact with the first base material 16B in a state where the first fitting portion 18B and the second fitting portion 22B are fitted. Thereby, adsorption | suction of the volatile component which arises from the content accommodated in the bag main body becomes easier to be suppressed by the 1st fitting part 18B and the 2nd fitting part 22B.
In the fitting device of the present invention, a rib may be provided on the first base material instead of providing the rib on the second base material.

Moreover, in the fitting tool of this invention, when providing a rib like the fitting tool 10C, you may provide a rib in both a 1st base material and a 2nd base material.
Specifically, the fitting 10D illustrated in FIG. 5 may be used. In FIG. 5, the same parts as those in FIG. The fitting tool 10D is the same as the fitting tool 10B except that the fitting tool 10D includes a rib 45 and a rib 46.

The rib 45 is provided on the side closer to the content side than the first fitting portion 18B in the first base material 16B so as to rise from the first fitting portion 18B side of the facing surface 16a. That is, the rib 45 is provided between the first fitting portion 18B and the second side edge 16c in the first base material 16B so as to rise from the vicinity of the first fitting portion 18B of the facing surface 16a.
The rib 46 is provided so as to rise from a position facing the rib 45 of the facing surface 20a in the second base material 20B. That is, the rib 46 is provided so as to rise from a position facing the rib 45 of the facing surface 20a between the second fitting portion 22B and the second side edge 20c in the second base material 20B.

  The ribs 45 and 46 contain a cyclic olefin resin. The ribs 45 and 46 adsorb volatile components generated from the contents accommodated in the bag body to the first fitting portion 18B and the second fitting portion 22B, which are formed using a resin other than the cyclic olefin resin as a main component. It becomes easy to be suppressed.

The preferable range of the ratio of the total mass of the cyclic olefin resin to the total mass of the resin forming the ribs 45 and 46 is the same as the preferable range of the ratio of the total mass of the cyclic olefin resin to the total mass of the resin forming the rib 44. .
The ratio of the total mass of the cyclic olefin resin to the total mass of the resin forming the rib 45 and the ratio of the total mass of the cyclic olefin resin to the total mass of the resin forming the rib 46 may be the same or different. Also good.

It is preferable that the ribs 45 and 46 are formed so that the tips thereof are in contact with each other in a state where the first fitting portion 18B and the second fitting portion 22B are fitted. Thereby, adsorption | suction of the volatile component which arises from the content accommodated in the bag main body becomes easier to be suppressed by the 1st fitting part 18B and the 2nd fitting part 22B.
In the fitting tool of the present invention, the rib provided on the first base material and the rib on the second base material may not face each other. For example, the ribs provided on the first base material and the ribs on the second base material are displaced in the width direction of the base materials on the contents side of the first fitting portion and the second fitting portion. May be provided. In this case, each of the ribs provided on the first base material and the second base material has a first fit from the viewpoint that it is easy to suppress the volatile component from being adsorbed to the first fitting portion and the second fitting portion. It is preferable that the ribs are formed so that the tips of the ribs are in contact with the opposing base material in a state where the joint portion and the second fitting portion are fitted.

  Moreover, the fitting tool of this invention is the 1st non-adsorptive layer by the side of the 1st side edge 16b and the 1st side edge 20b which become an opening part side, when it attaches to a bag main body in fitting tool 10B-10D. 34 and the 3rd non-adsorption layer 40 may be provided. That is, it may be a fitting tool having a laminated structure in which only the content side on the facing surface side of the first base material and the second base material includes a non-adsorbing layer.

The fitting tool of the present invention may be the fitting tool 10E illustrated in FIG. 6 that are the same as those shown in FIGS.
The fitting 10 </ b> E includes a first fitting portion 18 </ b> B, a second fitting portion 22 </ b> B, a portion 16 e provided with the first fitting portion 18 </ b> B in the first base material 16, and a second in the second base material 20. The portion 20e provided with the fitting portion 22B is the same as the fitting 10 except that the main component is a resin other than the cyclic olefin resin.
The portion 16e and the first fitting portion 18B in the first base material 16 may be formed of the same resin or may be formed of different resins. Moreover, the part 20e in the 2nd base material 20 and the 2nd fitting part 22B may be formed with the same resin, and may be formed with different resin.

  Also in the fitting tool 10E, since the cyclic olefin resin is contained in at least the opposing surface side of the part other than the part 16e in the first base material 16 and the part other than the part 20e in the second base material 20, the fitting tool 10E. Even if the content containing a volatile component is accommodated in the bag body to which the stool is attached, the volatile component is prevented from being adsorbed to the fitting.

The fitting tool of the present invention may be the fitting tool 10F illustrated in FIG. The same parts in FIG. 7 as those in FIGS.
The fitting 10 </ b> F includes a resin other than the cyclic olefin resin as a main component and the first fitting portion 18 </ b> B instead of the first fitting portion 18, and other than the cyclic olefin resin instead of the second fitting portion 22. The fitting tool 10 is the same as the fitting tool 10 except that the resin includes a main component and the second fitting portion 22B.

  Also in the fitting tool 10F, since the cyclic olefin resin is contained on at least the opposing surface side of the first base material 16 and the second base material 20, a volatile component is contained in the bag body to which the fitting tool 10F is attached. Even if the contents to be stored are accommodated, the volatile component is suppressed from adsorbing to the fitting.

  Moreover, in the fitting tool of this invention, when a 1st base material and a 2nd base material are used as a laminated film, it is good also as a layer structure of three or more layers. For example, a barrier layer may be provided between the non-adsorbing layer and the sealing layer. Examples of the material for the barrier layer include polyvinyl alcohol. Further, an adhesive layer may be provided between the non-adsorbing layer and the sealing layer, and between the non-adsorbing layer and the sealing layer and the barrier layer. Examples of the material for the adhesive layer include an ethylene-vinyl acetate copolymer.

Moreover, in the fitting tool of this invention, it is good also as an aspect in which the part of the at least facing surface side of only any one of a 1st base material and a 2nd base material contains cyclic olefin resin. From the viewpoint that adsorption of the volatile component to the fitting tool can be further suppressed, an aspect in which at least the facing surface portions of both the first base material and the second base material contain a cyclic olefin resin is preferable.
Moreover, in the fitting tool of this invention, it is good also as an aspect in which any one of a 1st fitting part and a 2nd fitting part contains cyclic olefin resin. In the point which can suppress adsorption | suction of the volatile component to a fitting tool more, the aspect in which both a 1st fitting part and a 2nd fitting part contain cyclic olefin resin is preferable.

  Moreover, the 1st fitting part and the 2nd fitting part in the fitting tool of this invention are not limited to the combination of a male type fitting part and a female type fitting part. For example, the first fitting portion and the second fitting portion each have a plurality of parallel male fitting portions, and two male fitting portions that face the heads of the male fitting portions of each other. They may be inserted between them and hooked together to be attached or detached.

<Bag with fittings>
The bag body with a fitting tool of the present invention comprises a bag body for storing contents, and the fitting tool of the present invention attached to the inner surface of the bag body. A well-known aspect can be employ | adopted for the bag body with a fitting tool of this invention except providing the fitting tool of this invention.

Hereinafter, as an example of a bag body with a fitting tool of the present invention, a bag body with a fitting tool 1 (hereinafter referred to as “bag body 1”) provided with the fitting tool 10 described above will be described.
As shown in FIGS. 8 and 9, the bag body 1 according to the present embodiment is attached along the lateral direction to a sealed bag body 50 that accommodates contents and an inner surface of the upper portion of the bag body 50. The fitting tool 10 is provided.

  The bag main body 50 is formed by overlapping the first film material 52 and the second film material 54 and heat-sealing all the peripheral portions 56 thereof, and is in a sealed state. Moreover, the cutting auxiliary line 58 is provided in the bag main body 50 above the fitting tool 10 along the horizontal direction, and the notch 60 is formed in the edge part.

  In the fitting tool 10, the outer surface 16 d of the first base material 16 of the fitting tool 10 is welded to the first film material 52 of the bag body 50, and the outer surface 20 d of the second base material 20 of the fitting tool 10 is fixed. It is welded to the second film material 54 of the bag body 50. Further, in the fitting 10, the first side edge 16 b of the first base material 16 and the first side edge 20 b of the second base material 20 are on the opening side, and the second side edge 16 c of the first base material 16. And the 2nd side edge 20c of the 2nd base material 20 is attached so that it may become the contents side.

  The shape of the bag body 50 is a rectangle in this embodiment. However, the shape of the bag body 50 is not limited to a rectangle. Further, the size of the bag body 50 is not particularly limited, and may be appropriately selected depending on the contents accommodated in the bag body 50.

The first film material 52 and the second film material 54 that form the bag body 50 may be any material that can weld the fitting 10 by heat sealing, and a laminate having at least a sealant layer and a base material layer from the inner surface side. A film is preferred.
Examples of the material for the base material layer include biaxially stretched nylon and biaxially stretched polypropylene.
Materials for the sealant layer include linear low density polyethylene, high pressure method low density polyethylene, high density polyethylene, ethylene- (meth) acrylic acid alkyl ester copolymer, unstretched polypropylene, ethylene-vinyl acetate copolymer, ionomer. Etc.
In addition, the sealant layer is desirably non-adsorbing and preferably contains a cyclic olefin resin.
The laminated film may be provided with a functional layer such as a barrier layer.
Moreover, the 1st film material 52 and the 2nd film material 54 may be a single layer film which consists only of a sealant layer.

The cutting auxiliary line 58 is a line that assists in cutting and opening the upper part of the bag body 50 from the fitting 10. As the cutting auxiliary line 58, for example, from a weakened line or a perforation in which the portion of the cutting auxiliary line 58 in the first film material 52 and the second film material 54 of the bag body 50 is thinner than the other parts. And weakening lines composed of pores formed in a row. Further, the cutting auxiliary line 58 is not limited to the weakening line, and may be a line formed by printing or the like indicating a position to be cut with a scissor or a cutter.
In the present embodiment, the cutting auxiliary line 58 is formed along the lateral direction of the bag body 50, but is not limited to this form, and may be provided inclined with respect to the width direction of the bag body 50. Good.

The shape of the notch 60 is a triangular shape in this example, but is not particularly limited, and may be a semicircular shape, a linear shape, or the like.
The bag body 1 can be manufactured by a known method except that the fitting 10 is used.

(Function and effect)
In the bag body 1, since the fitting tool 10 is used, even when contents containing a volatile component are accommodated in the bag body 50, the volatile component is prevented from being adsorbed by the fitting tool 10. Is done.
When the bag body 1 is opened, the upper portion of the bag body 50 is cut and removed from the notch 60 along the cutting auxiliary line 58 to form an opening 62 on the upper portion as shown in FIG. Can do. The opening 62 formed in the bag body 1 can be opened and closed repeatedly by attaching and detaching the first fitting portion 18 and the second fitting portion 22 of the fitting 10.

In addition, the bag body with a fitting tool of this invention is not limited to the bag body 1 mentioned above.
For example, the bag body with a fitting tool of the present invention may be a bag body with a fitting tool that includes the fitting tool of the present invention other than the fitting tool 10 as described above.
Moreover, the bag main body of a bag body with a fitting tool is not specifically limited, The bag main body of various forms known as a bag main body of a bag body with a fitting tool is employable. For example, the bag 1 is a sealed bag until it is opened using the cutting auxiliary line 58, but may be a bag with a fitting having a bag body in which an opening is formed in advance.

DESCRIPTION OF SYMBOLS 1 Bag body with fitting tool 10, 10A-10F Fitting tool 12 1st fitting member 14 2nd fitting member 16, 16A, 16B 1st base material 18, 18B 1st fitting part 20, 20A, 20B 1st 2 base material 22, 22B 2nd fitting part 24, 28, 34, 36, 40, 42 Non-adsorption layer 26, 30, 32, 38 Seal layer 44-46 Rib 50 Bag body

Claims (3)

A pair of strip-shaped first and second fitting members;
The first fitting member includes a strip-shaped first base material, and a first fitting portion provided on the first base material along the longitudinal direction,
The second fitting member is a belt-like second base material, and a second fitting part that is provided along the longitudinal direction of the second base material and is detachably fitted to the first fitting part; With
The fitting according to any one of the first base material and the second base material, wherein at least the portion on the facing surface side contains a cyclic olefin resin.   Furthermore, the fitting of Claim 1 in which any one or both of a said 1st fitting part and a 2nd fitting part contains cyclic olefin resin.   The bag body with a fitting tool which comprises the bag main body which accommodates the contents, and the fitting tool of Claim 1 or 2 attached to the inner surface of the said bag main body.

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