JP2018016598A - Grain bag and insect repelling method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grain bag that can repel both of the pests already present inside it and the pests entering it from outside.SOLUTION: A grain bag has an outer bag, and an inner bag stored in the outer bag. The outer bag contains at least one insect repelling component. The inner bag can be shut tight.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a grain bag and an insect repellent method.

  Conventionally, as a grain bag, there exist some which were described in Unexamined-Japanese-Patent No. 2011-88638 (patent document 1). This grain bag has a double structure of outer and lining, and the width of the lining is set to such an extent that it does not penetrate the grain hairs. Thereby, even if grain with a lot of field hair is stored in the grain bag, the grain is not caught on the lining, and all grains can be completely discharged at the time of discharge.

JP2011-88638A

  By the way, in the conventional grain bag, when the grain is stored in the grain bag, the grain may be damaged by a pest adhering to the grain or a pest entering from the outside of the grain bag.

  Then, the subject of this invention is providing the grain bag and insect control method which can suppress both the pest which already exists inside, and the pest which invades from the outside.

In order to solve the above problems, the grain bag of the present invention is:
An outer bag, and an inner bag accommodated in the outer bag,
The outer bag includes at least one insect repellent component,
The inner bag is a sealable bag.

  According to the grain bag of the present invention, when the grain is stored in the inner bag, the inner bag can be suffocated against the pests adhering to the grain. On the other hand, pests that enter from the outside of the grain bag can be controlled by the insect repellent component of the outer bag. In this way, it is possible to suppress both pests already existing inside the grain bag and pests entering from the outside of the grain bag.

  In one embodiment of the grain bag, the inner bag does not contain an insect repellent component.

  According to the embodiment, insect repellent components do not adhere to the grains stored in the inner bag. Moreover, the cost of the inner bag can be reduced.

In one embodiment of the grain bag,
The outer bag is
A bag body;
Having an insect repellent net (A) containing at least one insect repellent component;
The insect net (A) is provided on the inner surface of the bag body.

  According to the embodiment, since the insect-proof net (A) is provided on the inner surface of the bag body, the operator does not directly touch the insect-proof net even when touching the outside of the outer bag when carrying the outer bag. Insect repellents are less likely to adhere to workers.

  Moreover, in one Embodiment of a grain bag, the insect net (B) containing an at least 1 sort (s) of insect repellent component is provided in the outer surface of the said bag main body.

  According to the above embodiment, since the insect net (B) is provided on the outer surface of the bag body, it effectively exhibits an insecticidal effect against pests that enter from the outside of the bag body.

  Moreover, in one Embodiment of a grain bag, the said bag main body has a structure provided with an inner surface sheet | seat, an outer surface sheet | seat, and the insect net (C) containing at least 1 sort (s) of insect repellent component between them.

  According to the embodiment, since the insect net (C) is provided between the inner sheet and the outer sheet of the bag main body, it effectively exhibits an insect repellent effect against pests that enter the bag main body from the outside.

  In one embodiment of the grain bag, any one of the insect repellent net (A), the insect repellent net (B) and the insect repellent net (C) is a net made of a thermoplastic resin containing at least one insect repellent component. .

  According to the embodiment, by using a net made of a thermoplastic resin, manufacturing becomes easy, and weight reduction and cost reduction can be achieved.

  In one embodiment of the grain bag, the insect repellent component contained in the outer bag contains at least one of a pyrethroid compound and an insect growth regulator.

  In one embodiment of the grain bag, the pyrethroid compound is permethrin.

  In one embodiment of the grain bag, the insect growth regulator is pyriproxyfen.

In one embodiment of the grain bag,
The outer bag is
A bag body;
Having an insect repellent net comprising at least one insect repellent component;
The insect net is provided on the outer surface of the bag body.

  According to the embodiment, since the insect net is provided on the outer surface of the bag main body, it effectively exhibits an insect repellent effect against pests that enter the bag main body from the outside.

  In one embodiment of the grain bag, the outer bag has a structure including an inner sheet, an outer sheet, and an insect net including at least one insect repellent component therebetween.

  According to the embodiment, since the insect-proof net is provided between the inner sheet and the outer sheet, an insect-repellent effect is exerted against pests that enter the inside from the outside of the outer bag. Furthermore, when an operator handles the outer bag, even if the inner and outer sides of the outer bag are touched, the insect net is not directly touched, and the insect repellent component is less likely to adhere to the worker.

  In one embodiment of the insect repellent method, grains are put in the grain bag to protect the grains stored in the grain bag from pests.

  According to the embodiment, since the grain is protected from pests using the grain bag, an excellent insecticidal effect can be exhibited.

  In one embodiment of the insect repellent method, the grain is put in a first bag that can be sealed, the first bag is accommodated in a second bag containing at least one insect repellent component, and the first bag is contained. Protects grains stored in one bag from pests.

  According to the embodiment, by storing the grain in the first bag, it is possible to suffocate the first bag by sealing the first bag against pests adhering to the grain. Further, by accommodating the first bag in a second bag containing at least one insect repellent component, the insect repellent contained in the second bag against pests entering from the outside of the grain bag. Depending on the component, it can be controlled.

  According to the grain bag and insect control method of the present invention, it is possible to suppress both pests already present inside and pests entering from the outside.

It is a perspective view which shows 1st Embodiment of the grain bag of this invention. It is a partially broken perspective view of the outer bag of a grain bag. It is a disassembled perspective view of the outer bag of a grain bag. FIG. 3 is an enlarged view of a knitted insect-proof net. It is an enlarged view of the insect-proof net of a woven structure. It is an enlarged view of the insect net of a square mesh. It is an enlarged view of the insect-proof net of a hexagonal mesh. It is a disassembled perspective view of the outer bag in 2nd Embodiment of the grain bag of this invention. It is a disassembled perspective view of the outer bag in 3rd Embodiment of the grain bag of this invention. It is sectional drawing of the bag main body of the outer bag in 3rd Embodiment of the grain bag of this invention. It is a perspective view of the outer bag in 4th Embodiment of the grain bag of this invention. It is a perspective view of the outer bag in 5th Embodiment of the grain bag of this invention. It is sectional drawing of the bag main body of the outer bag in 5th Embodiment of the grain bag of this invention.

  Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.

(First embodiment)
FIG. 1 is a perspective view showing a first embodiment of a grain bag of the present invention. As shown in FIG. 1, the grain bag has an outer bag 1 and an inner bag 2 accommodated in the outer bag 1. The outer bag 1 contains at least one insect repellent component. The inner bag 2 is a bag that can be sealed.

  The inner bag 2 has an opening 2a on the upper side. The opening 2a is configured to be openable and closable by an opening / closing tool such as a fastener or a string. The inner bag 2 is sealed with the opening 2a closed. The shape of the inner bag 2 is a cylindrical shape in an inflated state, but may be a thick plate shape or a substantially spherical shape.

  Grain is taken in and out from the opening 2 a of the inner bag 2. The cereals are, for example, rice bran, corn, rice, wheat, awa, hie, beans, acne, buckwheat, and the like.

  The inner bag 2 does not contain an insect repellent component. Thereby, an insect-proof component does not adhere to the grain stored in the inner bag 2. Moreover, the cost of the inner bag 2 can be reduced. The inner bag 2 may contain an insect repellent component, and the configuration of the inner bag 2 may be the same as the configuration of the outer bag 1 described later.

The inner bag 2 is a bag that can be sealed, and by closing the opening 2a, the permeation of oxygen, carbon dioxide and water vapor is suppressed, the insects in the inner bag 2 are suffocated, and the generation of mold is suppressed. It is a bag that can. Specifically, the inner bag 2 is a bag made of a resin film having low permeability. Examples of the resin having low permeability include polyethylene, polypropylene, ethylene vinyl alcohol, and nylon. The resin film is a multilayer film (for example, 3 to 9 layers), the inner layer and the outer layer are made of polyethylene or polypropylene, and the intermediate layer is made of ethylene vinyl alcohol or nylon. A multilayer film is manufactured by a well-known method (coextrusion etc.). The permeability of the resin film is 100 cc / m ² / day or less, preferably 50 cc / m ² / day or less, and the water vapor permeability (WVTR) is 15 g / m ² under an oxygen permeability (OTR) of 0.1 MPa. / day or less, preferably 10 g / m ² / day or less. Commercially available products that can be used as the inner bag 2 include AgroZ (registered trademark) Bag of A to Z Textile Mills Ltd. and SuperGrainbag Farm of GrainPro, Inc.
Examples of the method for closing the opening 2a of the inner bag 2 include a method in which the end of the opening 2a is twisted and tied with a binding band or string.

  FIG. 2 is a partially broken perspective view of the outer bag. FIG. 3 is an exploded perspective view of the outer bag. As illustrated in FIGS. 2 and 3, the outer bag 1 includes a bag body 20 and an insect net 31 (an example of an insect net (A)) attached to the bag body 20. The insect net 31 is attached to the inner surface 20a of the bag body 20. That is, the insect-proof net 31 is a lining insect-proof net 31. The insect repellent net 31 includes at least one insect repellent component.

  The bag body 20 has an opening 20c on the upper side and a bottom 20d on the lower side. The opening 20c is configured to be openable / closable by an opening / closing tool such as a fastener or a string. The shape of the bag body 20 is a cylindrical shape in an inflated state, but may be a thick plate shape or a substantially spherical shape.

  The material of the bag body 20 is preferably polypropylene, but may be other resin or hemp. The material of the bag body 20 is, for example, a thermoplastic resin, a fiber such as natural fiber or glass fiber.

  The number of the insect-proof nets 31 is two in the first embodiment, and the two insect-proof nets 31 are arranged in the bag body 20 so as to face each other. The number of insect nets 31 may be one or three or more.

  The insect net 31 has a rectangular shape, and the vertical length of the insect net 31 is substantially the same as the vertical length from the opening 20 c to the bottom 20 d of the bag body 20. The vertical length of the insect-proof net 31 may be shorter than the vertical length of the bag body 20, and at this time, the insect-proof net 31 may be in any position between the upper and lower sides of the bag body 20. . Further, the insect net 31 may not be rectangular but may be oval, elliptical, polygonal or the like.

  The insect net 31 is attached to the inner surface 20a of the bag body 20 by, for example, thermocompression bonding. A part of the insect-proof net 31 may be crimped, or the entire insect-proof net 31 may be crimped. In addition to the thermocompression bonding, the insect-proof net 31 may be attached to the inner surface 20a of the bag body 20 by sewing or adhesion.

  As shown in the enlarged views of FIGS. 4A and 4B, the insect-proof net 31 is formed by knitting or weaving yarns 36 and 37 so as to form a plurality of meshes 35. FIG. 4A shows an example of an insect net 31 having a knitted structure formed by knitting yarns 36 and 37 so as to form a large number of meshes 35. In FIG. 4A, in order to show the two yarns 36 and 37 constituting the knitted structure, one yarn 36 is hatched for convenience. FIG. 4B shows an example of the woven structure insect net 31 formed by weaving the yarns 36 and 37 so as to form a large number of meshes 35. In FIG. 4B, in order to show the two yarns 36 and 37 constituting the woven structure, one yarn 36 is hatched for convenience. The material of the yarns 36 and 37 is natural fiber, glass fiber, or synthetic fiber. Natural fibers include pulp, cellulose, cotton, jute and hemp natural fibers. Synthetic fibers include synthetic fibers made of thermoplastic resin. The thickness of the yarns 36 and 37 needs to be a thickness capable of maintaining the strength as a net, and is usually in the range of 10 to 1000 denier, preferably 50 to 500 denier, and more preferably 50 to 300 denier.

  The shape of the mesh 35 in the insect-proof net 31 is preferably a polygon, and examples of the polygon include a quadrangle, a hexagon, and an octagon. FIG. 4C shows an example of the insect-proof net 31 in which the shape of the mesh 35 is a quadrangle. FIG. 4D shows an example of the insect-proof net 31 in which the mesh 35 has a hexagonal shape. In the present embodiment, it is preferable to use an insect repellent net 31 having a single mesh 35, and the shape of the mesh 35 in the insect net 31 is preferably a square or a hexagon.

  The size of the mesh 35 is appropriately set according to the length of the pest to be controlled, and is preferably such that the pest contacts the net when trying to pass through the net. The size (hole size) of the mesh 35 is usually in the range of 0.1 to 50 mm, preferably 0.2 to 20 mm, more preferably 0.2 to 10 mm. When the shape of the mesh 35 is a quadrangle, the size of the mesh 35 is represented by the distance between opposite sides, and is represented by the lengths a and b in FIG. 4C. Of the angles formed by the two sides, the smaller angle is usually in the range of 60 to 90 degrees. When the angle is 90 degrees and the length a and the length (width) b are the same, the shape of the mesh 35 is a square, and the size of the mesh 35 is represented by the length of one side of the square. The When the shape of the mesh 35 is a hexagon or an octagon, the size of the mesh 35 is represented by the length of a diagonal line. Note that the size of the mesh 35 when the shape of the mesh 35 is a hexagon is represented by a diagonal length c in FIG. 4D.

The insect repellent net 31 is preferably a thermoplastic resin net. Examples of the thermoplastic resin include polyolefin resin, polyvinyl alcohol, polycarbonate, polyester, polyamide, polystyrene, polymethyl methacrylate, polyacrylonitrile, acrylonitrile-butadiene-styrene copolymer, and polyvinyl chloride. As such a thermoplastic resin, a polyolefin resin is preferable. As the polyolefin resin, the following compounds are preferable.
(I) Olefin homopolymer: ethylene homopolymer, propylene homopolymer, and the like.
(Ii) Ethylene-α-olefin copolymer: ethylene-propylene copolymer, ethylene-butene-1 copolymer, ethylene-4-methyl-1-pentene copolymer, ethylene-hexene-1 copolymer, etc. .
(Iii) Copolymer of an organic carboxylic acid having an ethylenically unsaturated bond or a derivative thereof and ethylene: ethylene-methyl methacrylate copolymer, ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, ethylene- Vinyl acetate-methyl methacrylate copolymer and the like.

  The thermoplastic resin net is formed from a yarn obtained by spinning a thermoplastic resin (hereinafter referred to as “thermoplastic resin yarn”). The thermoplastic resin yarn is obtained by melt-kneading a thermoplastic resin and then melt spinning. The melt-kneading can be performed using equipment such as an extruder, a roll molding machine, and a kneader.

  The threads 36 and 37 of the insect repellent net 31 each have a carrier, and the insect repellent component is held on the carrier. The insect repellent component is mixed with the carrier or coated on the surface of the carrier. That is, the material of the carrier is preferably a thermoplastic resin. The insect repellent component includes at least one of a pyrethroid compound and an insect growth regulator.

(1) pyrethroid compound and insect growth regulator
(1-1) Pyrethroid compound Examples of the pyrethroid compound include acrinathrin, allethrin, d-arethrin, dd-arethrin, bifenthrin, cycloprotorin, cyfluthrin, and cyfluthrin. Cyfluthrin, cyhalothrin, gamma-cyhalothrin, lambda-cyhalothrin, cypermethrin, alpha cyperthrin, alpha cyperthrin. Permethrin (theta-cypermet) rin), zeta-perpermethrin, cyphenothrin, deltamethrin, dimethylfluthrin, empentrin, esfenvalerate, esfenvalentate. (Fenpropathrin), fenvalerate, flucitrinate, flufenprox, flumethrin, fluvalinate, furamethrin, halfenprolin Halfenprox, imiprothrin, methfluthrin, permethrin, phenothrin, d-phenothrin, prathrin, profluthrin, profluthrin -Resmethrin, silafluofen, tau-fluvalinate, teflutrin, teralethrin, tetramethrin, d-tetramethrin, tralomethrin (tralomethrin) , Transfluthrin, natural pyrethrin, and the like.

  The pyrethroid compound is preferably at least one selected from the group consisting of permethrin, esfenvalerate, deltamethrin, alpha cypermethrin, lambda cihalothrin, bifenthrin and etofenprox.

  These pyrethroid compounds can be used alone or in combination of two or more. Some of the above compounds have optical isomers, stereoisomers, geometric isomers and the like, but the pyrethroid compounds of the present invention include active isomers and mixtures thereof.

(1-2) Insect growth regulator Specific examples of insect growth regulators include juvenile hormone active compounds and chitin synthesis inhibitors.

  Examples of juvenile hormone active compounds include pyriproxyfen, hydroprene, metoprene, phenoxycarb, and the like.

  Examples of chitin synthesis inhibitors include etoxazole, bistrifluron, chlorfluazuron, diflubenzuron, fluazuron, flucycloxuron, flucyclon (Flufenoxuron), hexaflumuron, lufenuron, novaluron, noviflumuron, teflubenzuron, triflumuuron, etc.

  The insect growth regulator is preferably at least one selected from pyriproxyfen and metoprene.

  The amount of the insect-repellent component contained in the thermoplastic resin net is usually 0.1 to 20% by weight, preferably 0.2 to 10% by weight, based on 100% by weight of the thermoplastic resin net.

(2) Aspect For example, the following aspect is specifically mentioned.
(2-1) A pyrethroid compound and an insect growth regulator are mixed in a carrier.
(2-2) The carrier surface is coated with a pyrethroid compound and an insect growth regulator.
(2-3) A pyrethroid compound is mixed with a carrier, and an insect growth regulator is coated on the surface of the carrier.
(2-4) A pyrethroid compound is coated on the surface of the carrier, and an insect growth regulator is mixed with the carrier.

  When the insect repellent net includes a pyrethroid insecticide and an insect growth control agent, the compounding ratio of the pyrethroid insecticide to the insect growth control agent is usually 1: 10000 to 1000: 1, preferably 1: 1000 to 100 by weight. 1, more preferably 1:20 to 20: 1, even more preferably 1:10 to 10: 1, and most preferably 1: 5 to 5: 1.

Examples of the combination of a pyrethroid insecticide and an insect growth regulator include the following combinations.
・ Permethrin and pyriproxyfen ・ esfenvalerate and pyriproxyfen ・ Deltamethrin and pyriproxyfen ・ Alphacypermethrin and pyriproxyfen ・ Bifentrin and pyriproxyfen ・ Etophenprox and pyriproxyfen ・ Permethrin and methoprene ・ esfenvalerate And methoprene, deltamethrin, methoprene alpha-cypermethrin, methoprene bifenthrin, methoprene etofenprox and methoprene

  Among the above combinations, a combination of permethrin or esfenvalerate and pyriproxyfen is preferable.

  Examples of the blending ratio of permethrin or esfenvalerate and pyriproxyfen include 1: 1 or 2: 1 by weight.

  As the insect repellent net, a commercially available net can be used as a thermoplastic resin net containing an insect repellent component. As such nets, for example, Interceptor (registered trademark) of BASF SE (polyester net containing alpha-cypermethrin), DuraNet (registered trademark) of Clark Mosquito Control Product Inc. (polyethylene net containing alpha-cypermethrin) , Tawa Netting Co. Ltd's Dawa Plus (R) (polyester net with deltamethrin), Bestnet Europe Ltd's NetProtect (R) (polyethylene net with deltamethrin), Syngenta AG's Iconet (R) (lambda) -Polyester nets containing cyhalothrin), Sumitomo Chemical's Olyset® (polyethylene net containing permethrin), Bayer Crop Science AG Lifenet® (polypropylene net containing deltamethrin), and Vestergaard's PermaNet (Registered trademark) (polyester net or polyethylene containing deltamethrin Ltd. net), and the like.

(3) Production method The insect net of the present invention can be produced, for example, as in the following (i), (ii), or (iii). In addition, (i)-(iii) demonstrates the case where a thermoplastic resin is used as a support | carrier.
(I) A thermoplastic resin, an insect repellent component, and an optional compounding agent are stirred and mixed, and the resulting mixture is melt-kneaded to obtain a resin composition, which is used in a predetermined form. A resin body is obtained. Thereby, an insect repellent net is obtained.
(Ii) A thermoplastic resin, one of a pyrethroid compound and an insect growth control agent, and an optional compounding agent are stirred and mixed, and the resulting mixture is melt-kneaded to obtain a resin composition, and the resin composition Is used to obtain a resin body in a predetermined form. Then, the other of the pyrethroid compound and the insect growth regulator is coated on the surface of the resin body. Thereby, an insect repellent net is obtained.
(Iii) A thermoplastic resin and an optional compounding agent are stirred and mixed, and the resulting mixture is melt-kneaded to obtain a resin composition. A resin body having a predetermined form is obtained using the resin composition. obtain. Then, the surface of the resin body is coated with a pyrethroid compound and an insect growth regulator. Thereby, an insect repellent net is obtained.

  In the above methods (i) to (iii), the resin body can be formed by, for example, melt molding a resin composition, but may be formed by other molding methods. As such a molding method, a method usually used in resin molding can be used, and examples thereof include extrusion molding, injection molding, blow molding, compression molding, powder molding, and press molding.

  In addition, as a method for coating the carrier surface with the pyrethroid compound and / or insect growth control agent, for example, the component is used as it is or dissolved in a solvent such as alcohol, and the resin body is dipped or sprayed. Or the method of apply | coating treatment is mentioned.

  Also, after supporting at least one of a pyrethroid compound and an insect growth regulator on an auxiliary carrier, the resin composition is melt-kneaded with a thermoplastic resin to obtain a resin composition, and a resin body having a predetermined form is obtained using the resin composition. It can also be obtained. Examples of the auxiliary carrier include silica compounds, zeolites, viscous minerals, metal oxides, mica, hydrotalcites, and organic carriers. Silica compounds include amorphous silica and crystalline silica, and examples thereof include powdered silicic acid, finely powdered silicic acid, acid clay, diatomaceous earth, quartz, and white carbon. Examples of zeolites include A-type zeolite and mordenite, and examples of viscosity minerals include montmorillonite, saponite, beidellite, bentonite, kaolinite, halloysite, nacrite, decait, anoxite, illite, and sericite. Examples of the metal oxide include zinc oxide, magnesium oxide, aluminum oxide, iron oxide, copper oxide, and titanium oxide. Examples of the mica include mica and vermiculite. And hydrotalcite, smectite, etc., and organic carriers include charcoal (charcoal, peat, grass charcoal, etc.), polymer beads (microcrystalline cellulose, polystyrene beads, acrylate beads, methacrylate esters) , Polyvinyl alcohol Over's, etc.), and the crosslinked polymer beads and the like thereof, and the like. In addition, pearlite, gypsum, ceramic, volcanic rocks and the like can be mentioned. As the auxiliary carrier, an amorphous inorganic carrier is preferable, and amorphous silica is more preferable.

  The insect net of the present invention is a synergist, neonicotinoid compound, carbamate compound, organophosphorus compound, phenylpyrazole compound, pyrrole compound, oxadiazine compound and other insecticides, repellents, antioxidants, Antifungal agent, antibacterial agent, pigment, fragrance, deodorant, spreading agent, UV absorber, light stabilizer, lubricant, antiblocking agent, antistatic agent, surfactant, filler, intractable agent, plastic You may contain compounding agents, such as an agent or a rust preventive agent.

In addition, when using a synergist as said compounding agent, the insect-proof net | network of this invention can be manufactured as follows (i), (ii), or (iii), for example. In addition, (i)-(iii) demonstrates the case where a thermoplastic resin is used as a support | carrier.
(I) A thermoplastic resin, an insect repellent component, a synergist, and any other compounding agent are stirred and mixed, and the resulting mixture is melt-kneaded to obtain a resin composition. A resin body having a predetermined shape is obtained using the product. Thereby, an insect repellent net is obtained.
(Ii) A mixture obtained by stirring and mixing a thermoplastic resin, at least one component selected from the group consisting of a pyrethroid compound, an insect growth regulator, and a synergist, and any other compounding agent. Is melt-kneaded to obtain a resin composition, and a resin body having a predetermined form is obtained using the resin composition. And the component which was not selected from the said group is coated on the surface of a resin body. Thereby, an insect repellent net is obtained.
(Iii) A thermoplastic resin and other optional compounding agents are stirred and mixed, and the resulting mixture is melt-kneaded to obtain a resin composition, and a resin in a predetermined form using the resin composition Get the body. And a pyrethroid compound, an insect growth control agent, and a synergist are coated on the surface of a resin body. Thereby, an insect repellent net is obtained.

As a synergist, the following are mentioned, for example.
Α- [2- (2-butoxyethoxy) ethoxy] -4,5-methylenedioxy-2-propyltoluene [piperonylbutoxide (PBO)]
N- (2-ethylhexyl) -1-isopropyl-4-methylbicyclo (2,2,2) oct-5-ene-2,3-dicarboximide [Sinepirine 500]
・ Butyl stearate ・ Bis- (2,3,3,3-tetrachloropropyl) ether [S-421]
N- (2-ethylhexyl) bicyclo [2.2.1] hept-5-ene-2,3-dicarboximide [MGK264]

  The amount of each component in the insect net of the present invention is preferably 30 to 99% by weight of a thermoplastic resin, 0.01 to 50% by weight of a pyrethroid compound, and 0.001 to 50% by weight of an insect growth control agent. 50 to 99% by weight, pyrethroid compound 0.1 to 25% by weight, and insect growth regulator 0.01 to 25% by weight are more preferable.

  Furthermore, the amount of each component in the insect repellent net of the present invention when it contains a synergist is 30 to 99% by weight of a thermoplastic resin, 0.01 to 50% by weight of a pyrethroid compound, and 0.001 to 50 of an insect growth control agent. % By weight, and 0.01 to 50% by weight synergist, thermoplastic resin 50 to 99% by weight, pyrethroid compound 0.1 to 25% by weight, insect growth regulator 0.01 to 25% by weight, and co-agent More preferred is 0.1 to 25% by weight of power agent.

  Next, the effect of the grain bag will be described.

  According to the grain bag, the outer bag 1 includes at least one insect repellent component, and the inner bag 2 is a sealable bag. Thereby, when storing a grain in the inner bag 2, it can be made to suffocate by sealing the inner bag 2 with respect to the pest adhering to the grain. On the other hand, the insect pests entering from the outside of the grain bag can be controlled by the insect repellent component of the outer bag 1. In this way, it is possible to suppress both pests already present inside the grain bag and pests that enter from the outside of the grain bag. In other words, the grain bag has a double structure of an outer bag 1 for exterminating external pests and an inner bag 2 for exterminating internal pests. That is, since the outer bag 1 has a role of preventing the entry of external pests, it may not be sealed. Since the inner bag 2 has a role of suffocating the pests inside, it does not have to contain an insect repellent component.

  Moreover, the grain stored in the grain bag is protected from pests by putting the grain in the grain bag. In other words, the insect repellent method includes a step of putting the grain in a grain bag to protect the grain from pests. In the insect repellent method, the step of closing the opening of the grain bag is performed after the step of putting the grain in the grain bag.

  In the above insect-control method, grains are put in a grain bag in which an inner bag and an outer bag are doubled in advance, but after putting the grains in the inner bag, the inner bag is accommodated in the outer bag. The grain stored in the grain bag may be protected from pests. In other words, another insect repellent method includes the steps of placing the grains in a sealable first bag and housing the first bag in a second bag containing at least one insect repellent component. The first bag has the same configuration as the inner bag in the grain bag, and the second bag has the same configuration as the outer bag in the grain bag.

  Pests include, for example, the rice beetle (Tenebrio obscurus), the white rice beetle (Tenebrio molitor), the black beetle (Neatus ventralis), the bud beetle, Alphitophagus bifasciatus, Alphitobius laevigatus), Tribolium confusum, Tribolium castaneum, Tribolium freemani, Sitophilus zeamais, Sitophilus oryzae, Sitophilus oryzae, Sitophilus oryzae Rhyzopertha dominica, Dinoderus minutus, Carpophilus pilosellus, Carpophilus dimidiatus, Scarlet larva (O ryzaephilus surinamensis), bark beetle (Oryzaephilus mercator), bark beetle (Cryptolestes pusillus), tobacco beetle (Lasioderma serricorne), ginseng beetle (Stegobium paniceum), bark beetle, thorium beetle , Attagenus unicolor japonicus, Attagenus fasciatus, Dermestes maculatus, Trogoderma granarium, Trigoder varieties (Callosobruchus chinensis), Japanese beetle weevil (Callosobruchus maculatus), Japanese bean weevil (Callosobruchus analis), Common bean weevil (Acanthoscelides obtectus), Sesame leopard hornworm (Gibbium aequinoctiale), Nagale hornworm (Ptinus japonicus), Knu-nu (Tenebroides mauritanicus), Hosobi-bi-kunusto (Lophocateres pusillus), Prostephanus truncatus, Crubtos, rubrusto destructor, Araecerus fasciculatus, Bruchidius atrolineatus, Callosobruchus rhodesianus, Callosobruchus subinotatus, Caryedon gonagra, Trogoderma granarius, Plodia interpunctella, Cadia caestella Estra elutella, Corcyra cephalonica, Paralipsa gularis, Pyralis farinalis, Aglossa dimidiata, Sitotroga cerealella, Hiratachate Liposcelis bostrychophila), Ephestia cautella, is Myelois ceratoniae. The grain bag exhibits an excellent insect repellent effect against these pests.

  According to the grain bag, the insect-proof net 31 is attached to the inner surface 20 a of the bag body 20. Thereby, when the operator carries the bag body 20, even if the operator touches the outside of the bag body 20, the insect protection net 31 is not directly touched, and the insect repellent component does not easily adhere to the operator.

  According to the grain bag, the bag body 20 and the insect net 31 are separate members. Thereby, strength can be given to the bag main body 20, the insect-proof net 31 can have an insect-proof function, and the functions can be divided, and a grain bag having both strength and insect-proof can be easily manufactured. Furthermore, since the grain bag can be manufactured by attaching the insect-proof net 31 to the existing bag body 20, the existing bag body 20 can be used.

  According to the grain bag, the insect-proof net 31 has a net shape. As a result, when the pests come and go through the mesh 35 of the insect-proof net 31, there are many opportunities for the pests to touch the insect-proof net 31 and the insect-proof effect is improved. Furthermore, the surface area is smaller than the shape of the sheet, the contact area with the grain can be reduced, and the insect repellent component is less likely to adhere to the grain. Moreover, since it is a net shape, it has elasticity and fits the shape of the bag body 20. Furthermore, since it has a net shape, the air permeability is high, and even if it is attached to the bag body 20, it does not become humid.

(Second Embodiment)
FIG. 5 is an exploded perspective view showing a second embodiment of the grain bag of the present invention. The second embodiment is different from the first embodiment in the configuration in which another insect net is added to the outer bag. This different configuration will be described below. Note that in the second embodiment, the same reference numerals as those in the first embodiment have the same configurations as those in the first embodiment, and a description thereof will be omitted.

  As shown in FIG. 5, the outer bag 1A of the grain bag of the second embodiment includes a second insect net 32 (at least one insect repellent component) in addition to the first insect net 31 of the first embodiment. An example of an insect repellent net (B). The material of the second insect net 32 is the same as the material of the first insect net 31. The shape of the second insect net 32 is the same as the shape of the first insect net 31.

  The second insect repellent net 32 is attached to the outer surface 20 b of the bag body 20. That is, the second insect repellent net 32 is an outer-layer insect repellent net 32. In the second embodiment, the number of second insect nets 32 is two. The number of the second insect nets 32 may be one or three or more.

  The second insect net 32 is rectangular, and the vertical length of the second insect net 32 is substantially the same as the vertical length of the bag body 20. The upper and lower lengths of the second insect repellent net 32 may be shorter than the upper and lower lengths of the bag main body 20, and at this time, the second insect repellent net 32 may be any one between the upper and lower portions of the bag main body 20. May be in position. Further, the second insect repellent net 32 may not be rectangular but may be oval, elliptical, polygonal or the like.

  The second insect net 32 is attached to the outer surface 20b of the bag body 20 by, for example, thermocompression bonding, sewing, or adhesion. A part of the second insect repellent net 32 may be attached, or the entire second insect repellent net 32 may be attached.

  The grain bag according to the second embodiment has the same effect as the first embodiment. Furthermore, since the second insect repellent net 32 is attached to the outer surface 20b of the bag body 20, it effectively exhibits an insect repellent effect against pests that enter the bag body 20 from the outside.

(Third embodiment)
FIG. 6A is an exploded perspective view showing a third embodiment of the grain bag of the present invention. FIG. 6B is a cross-sectional view of the bag body. 3rd Embodiment differs in the structure of the bag main body of an outer bag compared with 1st Embodiment. This different configuration will be described below. Note that in the third embodiment, the same reference numerals as those in the first embodiment have the same configurations as those in the first embodiment, and a description thereof will be omitted.

  As shown in FIGS. 6A and 6B, the bag body 20B of the outer bag 1B of the grain bag of the third embodiment includes an inner inner surface sheet 21, an outer outer sheet 22, and an inner sheet 21 and an outer sheet 22. A third insect repellent net 33 (an example of an insect repellent net (C)) including at least one insect repellent component. The inner surface sheet 21 and the outer surface sheet 22 are joined to each other by, for example, thermocompression bonding, sewing, or adhesion. The material of the inner surface sheet 21 and the outer surface sheet 22 is the same as the material of the bag body 20 of the first embodiment, and is preferably polypropylene. Note that another sheet member may be provided between the inner sheet 21 and the outer sheet 22.

  The material of the third insect net 33 is the same as the material of the first insect net 31 of the first embodiment. The shape of the third insect net 33 is the same as that of the first insect net 31.

  The third insect net 33 is attached between the inner sheet 21 and the outer sheet 22. That is, the third insect repellent net 33 is an insect repellent net 33 in the middle layer of the bag body 20B. 6B shows a cross-sectional view of the third insect repellent net 33 having the woven structure shown in FIG. 4B. In the third embodiment, the number of the third insect nets 33 is two. The number of the third insect repellent nets 33 may be one or three or more.

  The third insect net 33 has a rectangular shape, and the upper and lower lengths of the third insect net 33 are substantially the same as the upper and lower lengths of the inner sheet 21 and the outer sheet 22. The upper and lower lengths of the third insect repellent net 33 may be shorter than the upper and lower lengths of the inner surface sheet 21 and the outer surface sheet 22, and at this time, the third insect repellent net 33 includes the inner surface sheet 21 and the outer surface sheet. It may be in any position between 22 upper and lower. In addition, the third insect repellent net 33 may not be rectangular but may be oval, elliptical, polygonal, or the like.

  The third insect net 33 is attached between the inner sheet 21 and the outer sheet 22 by, for example, thermocompression bonding, sewing, or adhesion. A part of the third insect repellent net 33 may be attached, or the whole third insect repellent net 33 may be attached.

  According to the grain bag of the third embodiment, the same effect as that of the first embodiment is obtained. Furthermore, since the third insect repellent net 33 is attached between the inner sheet 21 and the outer sheet 22 of the bag body 20B, it effectively has an insecticidal effect against pests that enter the bag body 20B from the outside. Demonstrate.

(Fourth embodiment)
FIG. 7 is a perspective view showing a fourth embodiment of the grain bag of the present invention. 4th Embodiment differs in the structure which affixed the insect-proof net | network on the outer surface instead of the inner surface of the bag main body compared with 1st Embodiment. This different configuration will be described below. In addition, in 4th Embodiment, since the code | symbol same as 1st Embodiment is the same structure as 1st Embodiment, the description is abbreviate | omitted.

  As shown in FIG. 7, the outer bag 1 </ b> C of the grain bag of the fourth embodiment has the insect net 31 of the first embodiment attached to the outer surface 20 b instead of the inner surface 20 a of the bag body 20. Since the material and shape of the insect-proof net 31 have been described in the first embodiment, description thereof will be omitted.

  The insect net 31 is attached to the outer surface 20 b of the bag body 20. That is, the insect-proof net 31 is an outer-layer insect-proof net 31. In the fourth embodiment, the number of insect nets 31 is two. The number of insect nets 31 may be one or three or more.

  The insect-proof net 31 has a rectangular shape, and the vertical length of the insect-proof net 31 is substantially the same as the vertical length of the bag body 20. The vertical length of the insect-proof net 31 may be shorter than the vertical length of the bag body 20, and at this time, the insect-proof net 31 may be in any position between the upper and lower sides of the bag body 20. . Further, the insect net 31 may not be rectangular but may be oval, elliptical, polygonal or the like.

  The insect net 31 is attached to the outer surface 20b of the bag body 20 by, for example, thermocompression bonding, sewing, or adhesion. A part of the insect-proof net 31 may be attached, or the entire insect-proof net 31 may be attached.

  According to the grain bag of the fourth embodiment, the insect repellent net 31 is attached to the outer surface 20b of the bag main body 20. Therefore, the insect repellent effect is effectively prevented against pests that enter the bag main body 20 from the outside. Demonstrate.

  Further, the bag body 20 and the insect net 31 are separate members. Thereby, strength can be given to the bag main body 20, the insect-proof net 31 can be given an insect-proof function, and the functions can be divided, and the outer bag 1C having both strength and insect-proof can be easily manufactured. Furthermore, since the outer bag 1C can be manufactured by attaching the insect net 31 to the existing bag body 20, the existing bag body 20 can be used.

  The insect-proof net 31 has a net shape. As a result, when the pests come and go through the mesh 35 of the insect-proof net 31, there are many opportunities for the pests to touch the insect-proof net 31 and the insect-proof effect is improved. Furthermore, the surface area is smaller than the shape of the sheet, the contact area with the worker can be reduced, and the insect repellent component is difficult to adhere to the worker. Moreover, since it is a net shape, it has elasticity and fits the shape of the bag body 20. Furthermore, since it has a net shape, the air permeability is high, and even if it is attached to the bag body 20, it does not become humid.

(Fifth embodiment)
FIG. 8A is a perspective view showing a fifth embodiment of the grain bag of the present invention. FIG. 8B is a cross-sectional view of the bag body. Compared with the first embodiment, the fifth embodiment is different from the first embodiment in that the insect net is attached to the inside of the bag body instead of the inner surface of the bag body. This different configuration will be described below. Note that in the fifth embodiment, the same reference numerals as those in the first embodiment have the same configurations as those in the first embodiment, and a description thereof will be omitted.

  As shown in FIGS. 8A and 8B, the bag body 20B of the outer bag 1D of the grain bag of the fifth embodiment includes an inner inner surface sheet 21, an outer outer sheet 22, and an inner sheet 21 and an outer sheet 22. And an insect repelling net 31 including at least one insect repellent component. Since the material and shape of the insect-proof net 31 have been described in the first embodiment, description thereof will be omitted.

  The inner surface sheet 21 and the outer surface sheet 22 are joined to each other by, for example, thermocompression bonding, sewing, or adhesion. The material of the inner surface sheet 21 and the outer surface sheet 22 is the same as the material of the bag body 20 of the first embodiment, and is preferably polypropylene. Note that another member may be provided between the inner sheet 21 and the outer sheet 22.

  The insect net 31 is attached between the inner sheet 21 and the outer sheet 22. That is, the insect net 31 is the insect net 31 in the middle layer of the bag body 20B. FIG. 8B shows a cross-sectional view of the insect net 31 having the woven structure shown in FIG. 4B. In the fifth embodiment, the number of the insect-proof nets 31 is two. The number of insect nets 31 may be one or three or more.

  The insect-proof net 31 has a rectangular shape, and the vertical length of the insect-proof net 31 is substantially the same as the vertical length of the inner sheet 21 and the outer sheet 22. The vertical length of the insect-proof net 31 may be shorter than the vertical lengths of the inner surface sheet 21 and the outer surface sheet 22, and at this time, the insect-proof net 31 is between the upper and lower sides of the inner surface sheet 21 and the outer surface sheet 22. It may be in any position. Further, the insect net 31 may not be rectangular but may be oval, elliptical, polygonal or the like.

  The insect-proof net 31 is attached between the inner sheet 21 and the outer sheet 22 by, for example, thermocompression bonding, sewing, or adhesion. A part of the insect-proof net 31 may be attached, or the entire insect-proof net 31 may be attached.

  According to the grain bag of the fifth embodiment, since the insect net 31 is attached between the inner sheet 21 and the outer sheet 22, it has an insecticidal effect against pests that enter from the outside of the outer bag 1D. Demonstrate. Furthermore, when the worker handles the outer bag 1D, even if the worker touches the inner sheet 21 and the outer sheet 22, the insect repellent net 31 is not directly touched, and the insect repellent component does not easily adhere to the worker.

  Moreover, the inner surface sheet 21, the outer surface sheet 22, and the insect-proof net 31 are separate members. Thereby, the inner sheet 21 and the outer sheet 22 are given strength, the insect net 31 is provided with an insect repellent function, the functions can be divided, and the outer bag 1D having both strength and insect repellent can be easily manufactured. Furthermore, since the outer bag 1D can be manufactured by attaching the insect net 31 to the existing inner sheet 21 and outer sheet 22, the existing inner sheet and outer sheet can be used.

  The insect-proof net 31 has a net shape. As a result, when the pests come and go through the mesh 35 of the insect-proof net 31, there are many opportunities for the pests to touch the insect-proof net 31 and the insect-proof effect is improved. Moreover, since it is a net shape, it has elasticity and fits the shape of the inner surface sheet 21 and the outer surface sheet 22. Furthermore, since it has a net shape, the air permeability is high, and even if it is attached to the inner sheet 21 and the outer sheet 22, it is not humidified.

  The present invention is not limited to the above-described embodiment, and the design can be changed without departing from the gist of the present invention. For example, the feature points of the first to fifth embodiments may be variously combined.

  In the said embodiment, although the insect-proof net containing an insect-control component is provided in the outer bag, you may make it knead or coat an insect-control component directly in the bag main body of an outer bag. Commercially available products that can be used as outer bags containing insect repellent components include ZeroFly (registered trademark) manufactured by Vestergaard.

  An insect net including 2% permethrin and 1% pyriproxyfen (hereinafter referred to as the present insect net) was produced by the following method.

(Reference production example)
2- (3-t-butyl-2-hydroxy-5-methylphenyl) -5-chlorobenzotriazole (trade name Sumisorb 300: manufactured by Sumitomo Chemical Co., Ltd.) 1.5 parts by weight, 2-Hydroxy-4-n-octoxybenzoneone (product) Name Sumisov 130: manufactured by Sumitomo Chemical Co., Ltd.) 2.0 parts by weight, 10.0 parts by weight permethrin, 5.0 parts by weight pyriproxyfen, 5.0 parts by weight amorphous silica, and zinc stearate. 0 part by weight and 0.4 part by weight of BHT were stirred and mixed with a super mixer to obtain powder B. Single-screw extruder At 150 ° C, the ethylene homopolymer was melted, and powder B was added and kneaded so that the amount was 30.9 parts by weight with respect to 69.1 parts by weight of the ethylene homopolymer. Was extruded into strands, cooled with water, and cut with a pelletizer to obtain cylindrical master batch pellets B.
Next, 20.0 parts by weight of the obtained master batch pellet B and 80.0 parts by weight of ethylene homopolymer were mixed with stirring. Next, a monofilament having a thickness of 150 denier was spun from the obtained mixture at a processing temperature of 240 ° C. Then, the obtained resin yarn was knitted so as to form a hexagonal mesh having a size of 4 mm to produce a net having a knitted structure.

  A bag in which the insect net is attached to the inner surface of a polypropylene woven bag (mesh 8 × 8 to 12 × 12 sq. Inch, hereinafter referred to as “PP bag”) is used as an outer bag and does not contain an insect repellent component. A grain bag 1 of the present invention was obtained by inserting the inner bag into the outer bag using GrainPro, Inc. (SuperGrainbag Farm, hereinafter referred to as SGB) as the inner bag.

Contains 2 ml of a commercially available permethrin emulsion (trade name: Adion (registered trademark) emulsion, manufactured by Sumitomo Chemical Co., Ltd.) and a spreading agent (trade name: Cinderine (registered trademark), manufactured by Sumitomo Chemical Co., Ltd.) per 10 liters of water ( (5,000 times) solution was diluted so that the concentration of permethrin was 2,000 ppm. In addition, 0.2 mg of acetone containing 5% of a surfactant (trade name: Tween 20, manufactured by Tokyo Kasei Kogyo Co., Ltd.) is added to 10 mg of pyriproxyfen active ingredient to dissolve, and a spreading agent (product) Name: Shindyne (registered trademark), manufactured by Sumitomo Chemical Co., Ltd.) was diluted with a solution containing 2 ml per 10 liters of water (5,000 times) so that the concentration of pyriproxyfen was 2,000 ppm. The PP bag was immersed in a 1: 1 mixture of a 2,000 ppm permethrin aqueous dilution and a 2,000 ppm pyriproxyfen aqueous dilution for 1 minute and air-dried to prepare a PP bag subjected to a drug coating treatment.
A grain bag 2 of the present invention was obtained by inserting the inner bag into the outer bag using the PP bag treated with the drug coating as the outer bag and SGB as the inner bag.

A comparative grain bag 3 was obtained by inserting the inner bag into the outer bag with the PP bag as the outer bag and the SGB as the inner bag.
In the following test examples, the comparative grain bag 1 is a PP bag. The comparative grain bag 2 is a bag in which the insect-proof net is attached to the inner surface of a PP bag. The comparative grain bag 4 is a PP bag subjected to the above-mentioned drug coating.

(Test Example 1)
In each grain bag, 1 kg of brown rice containing 50 g of brown rice that had been damaged by 50 adult weevil in advance for 1 month was added, and 5 larvae of the rice cultivar were also closed. The inner bag which can be sealed is twisted so that the air in the bag is evacuated, the base of the twisted portion and the twisted portion are folded in two, and the binding band (width 4.8 mm, long 290 mm). The outer bag was folded in double at the opening and closed with a clip. Each grain bag with its mouth closed was stored in a plastic case, and 50 weevil adults and 5 rice larvae were released in the case.

[Table 1]

  Two months later, the number of adult weevil insects in each bag was examined. As shown in Table 1, the grain bags 1 and 2 of the present invention have a remarkable insect-repellent effect under conditions where pests exist both inside and outside the grain bag. It can be seen that

DESCRIPTION OF SYMBOLS 1,1A-1D Outer bag 2 Inner bag 2a Opening part 20, 20B Bag main body 20a Inner surface 20b Outer surface 20c Opening part 20d Bottom part 21 Inner surface sheet 22 Outer sheet 31-34 Insect net 35

Claims (13)

An outer bag, and an inner bag accommodated in the outer bag,
The outer bag includes at least one insect repellent component,
The inner bag is a grain bag, which is a sealable bag.   The grain bag according to claim 1, wherein the inner bag does not contain an insect repellent component. The outer bag is
A bag body;
Having an insect repellent net (A) containing at least one insect repellent component;
The grain bag according to claim 1 or 2, comprising the insect net (A) on an inner surface of the bag body.   The grain bag according to claim 3, comprising an insect net (B) containing at least one insect repellent component on an outer surface of the bag body.   The grain bag according to claim 3 or 4, wherein the bag main body has a structure including an inner surface sheet, an outer surface sheet, and an insect repellent net (C) containing at least one insect repellent component therebetween.   Any one of the insect repellent net (A), the insect repellent net (B) and the insect repellent net (C) is a net made of a thermoplastic resin containing at least one insect repellent component. Grain bag as described in one.   The grain bag according to any one of claims 1 to 6, wherein the insect repellent component contained in the outer bag contains at least one of a pyrethroid compound and an insect growth regulator.   The grain bag according to claim 7, wherein the pyrethroid compound is permethrin.   The grain bag according to claim 7 or 8, wherein the insect growth regulator is pyriproxyfen. The outer bag is
A bag body;
Having an insect repellent net comprising at least one insect repellent component;
The grain bag according to claim 1, wherein the insect net is provided on an outer surface of the bag body.   The grain bag according to claim 1 or 2, wherein the outer bag has a structure including an inner sheet, an outer sheet, and an insect net including at least one insect repellent component therebetween.   An insect repellent method for protecting a grain stored in the grain bag from pests, comprising a step of putting the grain in the grain bag according to claim 1.   Storing the grain in a first bag that can be sealed; and storing the first bag in a second bag containing at least one insect repellent component. Insect repellent method to protect the harvested grains from pests.

Images