JP4305032B2 - Paper insect repellent container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an insect repellent container, and more specifically, in an insect repellent container formed by a combination of an upper case and a lower case containing a drug sheet and having a plurality of vent holes. The present invention relates to a paper insect repellent container provided with a protruding drug sheet support for appropriately volatilizing a drug component contained in the drug sheet on the inner surface side of the case.
[0002]
[Prior art]
In a conventional insect repellent container, a space is required between the drug sheet 1 and the upper case 2a and the lower case 2b in order to appropriately volatilize the drug components from the drug sheet 1 in which the drug solution of the contents is soaked. It is.
[0003]
FIG. 5 is a perspective view of a plastic insect repellent container produced by conventional plastic molding, FIG. 6 is a sectional view taken along the line YY of FIG. 5, and FIG. 7 is a main body surface 2c of the upper case 2a. FIG. 8 is a side sectional view of a conventional paper insect repellent container in which a vent hole 4 is formed at the top of which the air bag is raised, and FIG. 8 is a conventional paper insect repellent in which a vent hole 4 is formed in a concave portion of the main body surface 2c of the upper case 2a. It is side sectional drawing of the container for agents.
[0004]
As shown in FIG. 5, the conventional insect repellent container 2 is manufactured by an injection molding method using an upper case 2a and a lower case 2b each having a plurality of vent holes 4 as a molding material.
[0005]
In addition, when the container 2 body is injection-molded, as a merit of plastic molding, as shown in FIG. 6, the protrusion-shaped drug sheet support portion 3 that supports the drug sheet 1 is formed in the protrusion shape when the container 2 body is manufactured. If the supporting part 3 for the drug sheet is also processed as an accessory, the supporting part 3 for the drug sheet can be easily integrally formed at the time of molding the main body, and the supporting part 3 for the drug sheet can be used to attach the drug sheet 1 and the container 2 together. A space can be easily provided between them.
[0006]
The drug sheet 1 is formed in a plate shape by impregnating a base material mainly composed of a paper layer made of chemical pulp or the like with a drug solution such as an insect repellent component or a fungicide component.
[0007]
When such a drug sheet 1 is accommodated in the container 2, the inner surface of the container 2 and the surface of the drug sheet 1 are in close contact with each other unless the protruding drug sheet support 3 is attached inside the container 2. The reason why there is no space between the container 2 and the drug sheet 1 is that the drug component impregnated in the drug sheet 1 cannot be sublimated and volatilized uniformly, and the insect-proofing effect of clothes and the like cannot be sufficiently exerted. Therefore, the role of the insect repellent container 2 will not be fulfilled.
[0008]
In the conventional insect repellent container 2, the protruding drug sheet support 3 that supports the drug sheet 1 in order to provide a space between the drug sheet 1 and the container 2 can be easily formed during plastic molding of the container 2 body. There is an advantage that can be integrally molded.
[0009]
However, since the container 2 main body and the protruding drug sheet support 3 are made of plastic resin such as polypropylene, disposal processing is not easy, and a paper container 2 having good disposal property is desired. ing.
[0010]
In the case of a conventional paper insect repellent container, as shown in FIG. 7, an upper case 2 a that contains a drug sheet 1 and has a plurality of vent holes 4 to provide a space between the drug sheet 1 and the container 2. Is formed into a stepped shape, a vent hole 4 is formed at the raised apex portion of the main body surface 2c, and a space is provided. The lower case 2b is provided with a ruled line 7 at the time of punching, and the protrusion of the ruled line 7 protrudes. Thus, a space is provided between the drug sheet 1 and the container 2 so as to support the drug sheet 1.
[0011]
Similarly, as shown in FIG. 8, the medicine sheet 1 is accommodated, and an upper case 2 a having a plurality of vent holes 4 is formed in a stepped shape so as to provide a space between the medicine sheet 1 and the container 2. A vent hole 4 is formed in the concave portion 2c, and a space is provided at the raised apex. The lower case 2b is provided with a ruled line 7 at the time of punching, and the protruding part of the ruled line 7 becomes the support part 3 for the drug sheet. A space is provided between the drug sheet 1 and the container 2 for supporting the drug sheet 1.
[0012]
As described above, the conventional paper insect repellent container is constituted by the combination of the upper case 2a and the lower case 2b having the shapes shown in FIGS. 7 and 8, and in particular, the upper case 2a is molded. The container 2 is not good and the appearance is uneven, and the design and aesthetic sense of the container 2 are also poor.
[0013]
That is, the paper insect repellent container uses any one of a box forming method, a draw forming method, a vacuum forming method, and a compressed air forming method using a base material mainly composed of a paper layer made of chemical pulp or the like. However, unlike plastic sheets, paper base materials are not thermoplastic, so they do not stretch easily even when heated, and when moisture in the paper decreases due to heat, problems such as paper cracking during molding Occurs.
[0014]
The space between the container 2 and the drug sheet 1 is reduced, the position where the vent holes 4 are provided is restricted, the aperture ratio is reduced, and the area of the aperture is also reduced, so the sublimation from the drug sheet 1 is difficult. The problem that the insect repellent component becomes confined in the container 2 and is not uniformly vaporized to the outside also occurs.
[0015]
Further, the holdability of the medicine sheet 1 and the punching suitability of the vent hole 4 are poor, and the strength around the vent hole 4 is also inferior.
[0016]
The lower case 2b is provided with a ruled line 7 by a punching method in order to provide a space between the drug sheet 1 and the protrusion of the ruled line 7 serves as a protruding drug sheet support part 3 to support the drug sheet 1. Thus, a space is provided between the drug sheet 1 and the container 2.
[0017]
Therefore, in order to enlarge this space, it is necessary to make the protrusions of the ruled lines 7 higher. However, since the base material is a paper layer, if it is too high, paper cracks will occur and stable protrusions cannot be formed. The role of the support part 3 will be impaired.
[0018]
As described above, in the conventional paper insect repellent container 2, the appearance of the container 2 is poor and inferior in design, there are many problems in production, and the space between the container 2 and the drug sheet 1 is reduced. The result is that the chemical component impregnated in the chemical sheet 1 cannot be sublimated and volatilized uniformly, and the insect repellent effect of clothing or the like cannot be sufficiently exerted, and does not play the role of the paper insect repellent container 2 It has become.
[0019]
[Problems to be solved by the invention]
The present invention solves the problems of the related art, and in an insect repellent container formed by a combination of an upper case and a lower case containing a medicine sheet and having a plurality of vent holes, the upper case and the lower case Provided is a paper insect repellent container provided with a protruding drug sheet support for appropriately volatilizing a drug component contained in the drug sheet on the inner surface side of the case.
[0020]
[Means for Solving the Problems]
The present invention has been made to solve the above-described problems. The invention according to claim 1 of the present invention is formed such that the upper case 2a formed so that the lower surface is opened and the upper surface is opened. A combination of the lower case 2b, provided with a welding flange 5 that overlaps the outer periphery of the openings of the two cases 2a and 2b, and a plurality of air holes in the main body surface 2c of the two cases 2a and 2b. In the insect repellent container 2 containing the medicine sheet 1 provided with 4, a heat-foamable resin is pattern coated on the inner surfaces of the upper case 2a and the lower case 2b, and at the same time the two cases 2a and 2b are molded A heat-foamable resin is thermally foamed to form a protruding drug sheet support 3. The medicine sheet support 3 of the cases 2a and 2b supports the medicine sheet 1, so that a uniform space is formed between the cases 2a and 2b and the medicine sheet 1. This is a paper insect repellent container.
[0021]
The invention according to claim 2 of the present invention is the container for paper insect repellent according to claim 1, wherein the two cases 2a and 2b are formed of a thermoplastic resin layer on both sides or one side of a base material mainly composed of a paper layer. A paper insect repellent container comprising a laminated material formed by laminating at least one coating agent layer.
[0022]
The invention according to claim 3 of the present invention is the paper insect repellent container according to claim 1 or 2, wherein the forming methods of the cases 2a and 2b are box forming, drawing, vacuum forming, and compressed air. A paper insect repellent container, which is any one of molding methods.
[0023]
The invention according to claim 4 of the present invention is the paper insect repellent container according to any one of claims 1 to 3, wherein the method of thermally foaming the thermally foamable resin is a heated molding at the time of molding. This is a paper insecticide container characterized by being heated by the mold 6.
[0024]
The invention according to claim 5 of the present invention is the paper insect repellent container according to any one of claims 1 to 4, wherein the thermally foamable resin is obtained by dispersing thermally expanded capsules in a thermoplastic binder, Alternatively, it is a paper insecticide container characterized in that a chemical foaming agent that generates gas by thermal decomposition is added to a thermoplastic binder.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the paper insect repellent container 2 according to the present invention will be described in detail with reference to FIGS.
[0026]
FIG. 1 is a perspective view showing one embodiment of a paper insect repellent container according to the present invention, and FIG. 2 is a plan view showing one embodiment of a paper insect repellent container according to the present invention. FIG. 4 is a cross-sectional side view taken along the line XX of FIG. 2, and FIG. 4 is a side cross-sectional view illustrating a process of molding the paper insect repellent container 2 according to the present invention with the mold 5.
[0027]
As shown in FIG. 1, a paper insect repellent container 2 according to the present invention contains a drug sheet 1 and is formed by an upper case 2a and a lower case 2b having a plurality of vent holes 4, and the upper case 2a and the lower case 2b are coated with a heat-foamable resin on the inner surface side, and both cases 2a and 2b are molded, and at the same time, the heat-foamable resin is thermally foamed to form the protruding drug sheet support 3 Yes.
[0028]
The paper insect repellent container 2 includes an upper case 2a formed by using a laminated material formed by laminating at least one thermoplastic resin layer or coating agent layer on both sides or one side of a base material mainly composed of a paper layer. It is configured in combination with the lower case 2b.
[0029]
The base material mainly composed of the paper layer is suitable for processing (such as formability) of the container 2 and protective properties (mechanical strength such as tensile strength and burst strength) which are various properties required as a packaging material. There are no restrictions on the type of paper as long as merchantability (printability, etc.), economy (price, transportability, etc.), and safety and hygiene (nontoxicity, easy disposal, etc.) are satisfied. Manila balls, coated balls, cup base papers, mold papers, and the like manufactured from pulp in a state in which cellulose is removed by chemically or mechanically treating plant raw materials can be used.
[0030]
The basis weight of the substrate is appropriately determined depending on the size of the paper insect repellent container, but the basis weight is 200 g / m. ² To 400 g / m ² The range of is preferable.
[0031]
Next, the thermoplastic resin forming the thermoplastic resin layer is a synthetic resin that can be easily melt-extruded with an extrusion lamination apparatus, has heat sealability, and has chemical resistance such as an insect repellent. For example, the type is not particularly limited.
[0032]
For example, polybutylene terephthalate resin (PBT), polyethylene terephthalate resin (PET), polypropylene resin (PP), low density polyethylene resin (LDPE), medium density polyethylene resin (MDPE), high density polyethylene resin (HDPE), etc. are used. However, it is particularly preferable to use polybutylene terephthalate resin (PBT), polyethylene terephthalate resin (PET), or polypropylene resin (PP).
[0033]
The thickness of the thermoplastic resin layer is appropriately determined depending on the size of the paper insect repellent container, but is preferably in the range of 12 μm to 40 μm in view of the laminate strength.
[0034]
Next, as the coating agent for forming the coating agent layer, solvent-soluble or water-soluble polyethylene terephthalate resin (PET), ethylene / vinyl acetate copolymer resin (EVA), acrylic resin, ethylene / vinyl alcohol copolymer A coalesced resin (EVOH) or the like can be used.
[0035]
As a method for coating the substrate, generally known methods such as a reverse roll coating method, a gravure coating method, a rod coating method, and an air knife coating method can be used.
[0036]
The coating amount is, for example, 0.1 g / m ² -10g / m ² (Dry) degree, preferably 0.5 g / m in consideration of heat seal strength and the like ² ~ 5g / m ² Coating is carried out to a degree of (dry).
[0037]
As described above, the laminated material constituting the paper insect repellent container 2 is a laminated material obtained by laminating at least one thermoplastic resin layer or coating agent layer on both sides or one side of a base material mainly composed of a paper layer. It is.
[0038]
For example, as a layer configuration example of the laminated material, (inner surface side) polybutylene terephthalate resin layer (PBT) 25 μm / cup base paper 270 g / m ² / Polybutylene terephthalate resin layer (PBT) 25 μm (outer side), (inner side) polyethylene terephthalate resin layer (PET) 12 μm / cup base paper 270 g / m ² / Polyethylene terephthalate resin layer (PET) 12 μm (outer side), (inner side) polybutylene terephthalate resin layer (PBT) 25 μm / cup base paper 270 g / m ² / Polypropylene resin layer (PP) 20 μm (outer side), (inner side) polybutylene terephthalate resin layer (PBT) 25 μm / Nippon Paper Industries Co., Ltd. trade name Mold Paper 275 g / m ² / Polybutylene terephthalate resin layer (PBT) 25 μm (outer surface side).
[0039]
Next, using the various laminated materials, a thermal foamable resin is pattern coated on one surface of the laminated material to provide the thermally foamable resin layer.
[0040]
As the thermally foamable resin, a thermally expanded capsule dispersed in a thermoplastic binder (fixing agent) or a chemical foaming agent that generates gas by thermal decomposition is added to the thermoplastic binder (fixing agent). .
[0041]
The thermal expansion capsule uses acrylic resin or polyvinylidene chloride resin (PVDC) for the shell, and uses butane gas for the internal gas.
[0042]
As the thermoplastic binder (fixing agent), ethylene methacrylic acid copolymer resin (EMAA), ethylene / acrylic acid copolymer resin (EAA), polyethylene resin (PE), polypropylene resin (PP), or the like is used.
[0043]
The chemical foaming agent is not particularly limited as long as it is a substance that generates gas by thermal decomposition, but sodium bicarbonate is preferable.
[0044]
The method of pattern coating the thermally foamable resin is to apply copper plating on the surface of an iron cylinder (cylinder) to form a base, provide a release layer on the copper plating surface, and further perform copper plating. A copper surface whose surface is mirror-polished can be coated with a gravure method or a relatively large coating amount by creating recesses (cells) of various pattern shapes by engraving and corrosion methods and transferring the coating liquid in the cells. It is preferable to use a silk screen method or the like.
[0045]
A heat-foamable resin is pattern coated on one side of the laminated material by a silk screen method, etc., and the heat-foamable resin layer is provided, and then heated by a drying device to thermally foam the heat-foamable resin, thereby forming protrusions. Then, the upper case 2a and the lower case 2b are produced by using any one of the box forming method, the drawing method, the vacuum forming method, and the pressure forming method. There is a method for producing the paper insect repellent container 2 by combining the upper case 2a and the lower case 2b.
[0046]
However, in this method, a heat-foamable resin is pattern-coated on one side of the laminated material, and the heat-foamable resin is thermally foamed to form the protruding drug sheet support 3, and the upper case 2 a and the lower case 2 b are formed. The work process until molding becomes long and complicated, and the protruding drug sheet support 3 produced by heat foaming is damaged, worn, or unfavorable in terms of quality.
[0047]
Therefore, as shown in FIG. 4, after cutting a laminated material formed by laminating at least one thermoplastic resin layer or coating agent layer on both sides or one side of the substrate mainly composed of the paper layer, One side of the sheet-like laminated material is coated with a heat-foamable resin by a silk screen method or the like, and the laminated material obtained by pattern-coating the heat-foamable resin is a mold 6 comprising a male mold 6a and a female mold 6b. Set in between.
[0048]
Since the mold 6 is heated within a range of 100 ° C. to 400 ° C., the upper case 2a and the lower case 2b are molded by a drawing method or the like, and at the same time, the thermally foamable resin is thermally foamed to form a protruding drug. It is preferable to produce in the operation | work process which forms the support part 3 for sheets.
[0049]
That is, the thermally foamable resin is obtained by dispersing thermally expanded capsules in a thermoplastic binder (fixing agent) or by adding a chemical foaming agent that generates gas by thermal decomposition to the thermoplastic binder (fixing agent). I am using it.
[0050]
The thermal expansion capsule uses acrylic resin, polyvinylidene chloride resin (PVDC) or the like for the shell, and butane gas or the like for the internal gas.
[0051]
As the thermoplastic binder (fixing agent), ethylene methacrylic acid copolymer resin (EMAA), ethylene / acrylic acid copolymer resin (EAA), polyethylene resin (PE), polypropylene resin (PP), or the like is used.
[0052]
As the chemical foaming agent, one that generates gas by thermal decomposition, such as sodium hydrogen carbonate, is used.
[0053]
Therefore, when the laminated material is coated with a heat-foamable resin by a silk screen method or the like and is provided with the heat-foamable resin layer, the drying device is good in terms of strength such as friction resistance. If the heat-foamable resin is thermally foamed by heating, etc., the foaming process is preferably post-processed as much as possible because the frictional resistance becomes slightly weak and the strength deteriorates.
[0054]
Next, a beautiful printing ink layer can be provided on the surface of the paper insect repellent container 2 for the purpose of improving the sales promotion effect.
[0055]
At that time, the printing ink for forming the printing ink layer includes a color material composed of a pigment or a dye that imparts color to the ink, and a synthetic resin that adheres to the printed material while dispersing and holding the color material in fine particles. And a solvent that stably dissolves the resin, maintains the dispersibility of the pigment and the fluidity of the ink, and transfers the appropriate amount of ink from the printing plate, and further dispersibility of the coloring material and coloring It is formed from an auxiliary agent composed of a surfactant for the purpose of improving the property, preventing precipitation, and improving the fluidity. Especially, the colorant has good weather resistance for paper insecticide containers, and is a drug sheet. Pigments that are not affected by the drug component evaporating from 1 are preferred.
[0056]
As the printing method, an offset printing method, a gravure printing method, a silk screen printing method, a flexographic printing method, and the like can be used, but an offset printing method is preferable if the substrate to be printed is a sheet-like sheet.
[0057]
As described above, when the upper case 2a formed so that the lower surface is opened and the lower case 2b formed so that the upper surface is opened, the upper case 2a and the upper case 2b are superposed vertically on the outer periphery of the opening. In the insect repellent container 2 for housing the medicine sheet 1 provided with the overlapping welding flange 5 and the plurality of vent holes 4 provided in the main body surface 2c of the two cases 2a and 2b, the upper case 2a and the lower case 2b The foamed resin sheet support part 3 is formed by pattern-coating a heat-foamable resin on the inner surface side of the film and molding both the cases 2a and 2b and simultaneously heat-foaming the heat-foamable resin. To provide a paper insect repellent container.
[0058]
【Example】
Next, an Example demonstrates this invention concretely in detail.
[0059]
<Example 1>
The paper insect repellent container of the present invention has a basis weight of 270 g / m. ² A polybutylene terephthalate resin (PBT) having a thickness of 25 μm on both sides by extrusion extrusion of a polybutylene terephthalate resin (PBT) on both sides of a base material made of a base paper of 1,000 mm width and extrusion lamination. The layers were laminated to produce a wound laminated material.
[0060]
Next, a floral pattern was printed on a gravure printing plate having a plate depth of 35 μm using a known gravure printing ink manufactured by Toyo Ink Manufacturing Co., Ltd. on the outer surface of the laminated material.
[0061]
After the printed laminated material was cut into a sheet shape, the air holes 4 were formed by punching.
[0062]
Next, a thermally expanded capsule using an acrylic resin as a shell and butane gas as an internal gas was produced.
[0063]
The thermally expanded capsule was dispersed in ethylene methacrylic acid copolymer resin (EMAA) to prepare a thermally foamable resin.
[0064]
A circular pattern having a diameter of 5 mm is provided on the inner surface of the polybutylene terephthalate resin (PBT) layer on the inner surface of the polybutylene terephthalate resin (PBT) layer. A multi-sided plate was prepared and part-coated by a silk screen method.
[0065]
Next, as shown in FIG. 4, the sheet-like laminated material coated with the thermally foamable resin is coated for 3 seconds between the mold 6 heated to 200 ° C. composed of the male mold 6a and the female mold 6b. The upper case 2a and the lower case 2b having the vent holes 4 are produced by drawing and simultaneously forming a heat-foamable resin by thermal foaming to form the protruding drug sheet support 3 between the upper case 2a and the lower case 2b. A paper insecticide container was prepared by combining the two cases 2a and 2b.
[0066]
As a result of storing the drug sheet 1 in which a drug solution such as an insect repellent component is impregnated in the paper insect repellent container produced by the above-described process, a space is formed between the drug sheet 1 and the upper case 2a and the lower case 2b. Was formed, and the drug component could be volatilized appropriately.
[0067]
<Example 2>
The paper insect repellent container of the present invention has a basis weight of 270 g / m. ² A polyethylene terephthalate resin (PET) layer having a thickness of 12 μm on both sides is obtained by extruding a polyethylene terephthalate resin (PET) on both sides of a base material made of a base paper having a width of 1,000 mm and extruding it with a lamination (extrusion lamination) device. Laminated and wound-up laminated materials were produced, and the others were made into a paper insecticide container by the same method as in Example 1.
[0068]
As a result of storing the drug sheet 1 in which a drug solution such as an insect repellent component is impregnated in the paper insect repellent container produced by the above-described process, a space is formed between the drug sheet 1 and the upper case 2a and the lower case 2b. Was formed, and the drug component could be volatilized appropriately.
[0069]
<Example 3>
The paper insect repellent container of the present invention has a basis weight of 270 g / m. ² The polybutylene terephthalate resin (PBT) is melt-extruded on the inner surface of the base material made of 1000 mm wide cup base paper by an extrusion lamination apparatus with a thickness of about 25 μm. Similarly, a polypropylene resin ( PP) was laminated to a thickness of 20 μm to produce a wound laminated material, and a paper insecticide container was produced in the same manner as in Example 1 except for that.
[0070]
As a result of storing the drug sheet 1 in which a drug solution such as an insect repellent component is impregnated in the paper insect repellent container produced by the above-described process, a space is formed between the drug sheet 1 and the upper case 2a and the lower case 2b. Was formed, and the drug component could be volatilized appropriately.
[0071]
<Example 4>
The paper insect repellent container of the present invention has a basis weight of 275 g / m. ² A laminated material obtained by subjecting polybutylene terephthalate resin (PBT) to a thickness of about 25 μm on both sides of a base material made of Nippon Paper Industries Co., Ltd., a 1,000 mm wide product name mold paper, and extrusion extrusion (extrusion lamination) equipment. Otherwise, a paper insecticide container was prepared in the same manner as in Example 1.
[0072]
As a result of storing the drug sheet 1 in which a drug solution such as an insect repellent component is impregnated in the paper insect repellent container produced by the above-described process, a space is formed between the drug sheet 1 and the upper case 2a and the lower case 2b. Was formed, and the drug component could be volatilized appropriately.
[0073]
<Example 5>
The paper insect repellent container of the present invention has a basis weight of 270 g / m. ² A polybutylene terephthalate resin (PBT) having a thickness of 25 μm on both sides by extrusion extrusion of a polybutylene terephthalate resin (PBT) on both sides of a base material made of a base paper of 1,000 mm width and extrusion lamination. The layers were laminated to produce a wound laminated material.
[0074]
Next, a floral pattern was printed on a gravure printing plate having a plate depth of 35 μm using a known gravure printing ink manufactured by Toyo Ink Manufacturing Co., Ltd. on the outer surface of the laminated material.
[0075]
After the printed laminated material was cut into a sheet shape, the air holes 4 were formed by punching.
[0076]
Next, sodium hydrogen carbonate, which is a chemical foaming agent that generates gas by thermal decomposition, was dispersed in ethylene methacrylic acid copolymer resin (EMAA) to produce a thermally foamable resin.
[0077]
A circular pattern with a diameter of 5 mm is provided on the inner surface of the polybutylene terephthalate resin (PBT) layer on the inner surface of the polybutylene terephthalate resin (PBT) layer. A multi-sided plate was prepared and part-coated by a silk screen method.
[0078]
Next, as shown in FIG. 4, the sheet-like laminated material coated with the thermally foamable resin is coated for 3 seconds between the mold 6 heated to 150 ° C. composed of the male mold 6a and the female mold 6b. The upper case 2a and the lower case 2b having the vent holes 4 are produced by drawing and simultaneously forming a heat-foamable resin by thermal foaming to form the protruding drug sheet support 3 between the upper case 2a and the lower case 2b. A paper insecticide container was prepared by combining the two cases 2a and 2b.
[0079]
As a result of storing the drug sheet 1 in which a drug solution such as an insect repellent component is impregnated in the paper insect repellent container produced by the above-described process, a space is formed between the drug sheet 1 and the upper case 2a and the lower case 2b. Was formed, and the drug component could be volatilized appropriately.
[0080]
<Example 6>
The paper insect repellent container of the present invention has a basis weight of 270 g / m. ² A polyethylene terephthalate resin (PET) layer having a thickness of 12 μm on both sides is obtained by extruding a polyethylene terephthalate resin (PET) on both sides of a base material made of a base paper having a width of 1,000 mm and extruding it with a lamination (extrusion lamination) device. Laminated and wound-up laminated materials were produced, and the others were made into a paper insecticide container by the same method as in Example 5.
[0081]
As a result of storing the drug sheet 1 in which a drug solution such as an insect repellent component is impregnated in the paper insect repellent container produced by the above-described process, a space is formed between the drug sheet 1 and the upper case 2a and the lower case 2b. Was formed, and the drug component could be volatilized appropriately.
[0082]
<Example 7>
The paper insect repellent container of the present invention has a basis weight of 270 g / m. ² The polybutylene terephthalate resin (PBT) is melt-extruded on the inner surface of the base material made of 1000 mm wide cup base paper by an extrusion lamination apparatus with a thickness of about 25 μm. Similarly, a polypropylene resin ( PP) was laminated to a thickness of 20 μm to produce a wound laminated material, and a paper insecticide container was prepared in the same manner as in Example 5 except for the above.
[0083]
As a result of storing the drug sheet 1 in which a drug solution such as an insect repellent component is impregnated in the paper insect repellent container produced by the above-described process, a space is formed between the drug sheet 1 and the upper case 2a and the lower case 2b. Was formed, and the drug component could be volatilized appropriately.
[0084]
<Example 8>
The paper insect repellent container of the present invention has a basis weight of 275 g / m. ² The polybutylene terephthalate resin (PBT) has a thickness of about 25 μm on both sides of the base material made of Nippon Paper Industries Co., Ltd.'s product name mold paper with a width of 1,000 mm, and is rolled up by extrusion extrusion (extrusion lamination) equipment. In the other manner, a paper insecticide container was prepared in the same manner as in Example 5.
[0085]
As a result of storing the drug sheet 1 in which a drug solution such as an insect repellent component is impregnated in the paper insect repellent container produced by the above-described process, a space is formed between the drug sheet 1 and the upper case 2a and the lower case 2b. Was formed, and the drug component could be volatilized appropriately.
[0086]
<Example 9>
The paper insect repellent container of the present invention has a basis weight of 270 g / m. ² A polyethylene terephthalate resin (PET) dissolved in a known solvent on the inner surface of a base material made of 1,000 mm wide cup base paper is applied with a reverse roll coater to a coating amount of 5 g / m. ² A (stacked) laminate material was prepared by coating to the extent of (dry).
[0087]
Next, a floral pattern was printed on a gravure printing plate having a plate depth of 35 μm using a known gravure printing ink manufactured by Toyo Ink Manufacturing Co., Ltd. on the outer surface of the laminated material.
[0088]
After the printed laminated material was cut into a sheet shape, the air holes 4 were formed by punching.
[0089]
Next, a thermally expanded capsule using an acrylic resin as a shell and butane gas as an internal gas was produced.
[0090]
The thermally expanded capsule was dispersed in ethylene methacrylic acid copolymer resin (EMAA) to prepare a thermally foamable resin.
[0091]
A circular pattern having a diameter of 5 mm is formed on the inner surface of the heat-foamable resin coated with polyethylene terephthalate resin (PET) on a surface area of 100 mm length × 170 mm width = 4 rows × 4 rows = 16 A multi-sided plate provided with portions was prepared and part-coated by a silk screen method.
[0092]
Next, as shown in FIG. 4, the laminated material pattern-coated with the heat-foamable resin is set for 3 seconds between the mold 6 heated to 200 ° C. composed of the male mold 6a and the female mold 6b, The upper case 2a and the lower case 2b having vent holes are formed by drawing, and at the same time, the thermally foamable resin is thermally foamed to provide the protruding drug sheet support portion 3 inside the upper case 2a and the lower case 2b. Both cases 2a and 2b were combined to produce a paper insecticide container.
[0093]
As a result of storing the drug sheet 1 in which a drug solution such as an insect repellent component is impregnated in the paper insect repellent container produced by the above-described process, a space is formed between the drug sheet 1 and the upper case 2a and the lower case 2b. Was formed, and the drug component could be volatilized appropriately.
[0094]
<Example 10>
The paper insect repellent container of the present invention has a basis weight of 270 g / m. ² A reverse roll coater is used to apply an ethylene / vinyl acetate copolymer resin (EVA) dissolved in a known solvent on the inner surface of the base material made of a 1,000 mm wide cup base paper, and the coating amount is 5 g / m. ² (Dry) A coated laminate material was prepared by coating to a degree, and a paper insecticide container was prepared in the same manner as in Example 9.
[0095]
As a result of storing the drug sheet 1 in which a drug solution such as an insect repellent component is impregnated in the paper insect repellent container produced by the above-described process, a space is formed between the drug sheet 1 and the upper case 2a and the lower case 2b. Was formed, and the drug component could be volatilized appropriately.
[0096]
<Example 11>
The paper insect repellent container of the present invention has a basis weight of 270 g / m. ² A reverse roll coater is used to apply an acrylic resin dissolved with a known solvent on the inner surface of a base material made of a 1,000 mm wide cup base paper. ² (Dry) A coated laminate material was prepared by coating to a degree, and a paper insecticide container was prepared in the same manner as in Example 9.
[0097]
As a result of storing the drug sheet 1 in which a drug solution such as an insect repellent component is impregnated in the paper insect repellent container produced by the above-described process, a space is formed between the drug sheet 1 and the upper case 2a and the lower case 2b. Was formed, and the drug component could be volatilized appropriately.
[0098]
<Example 12>
The paper insect repellent container of the present invention has a basis weight of 270 g / m. ² A polyethylene terephthalate resin (PET) dissolved in a known solvent on the inner surface of a base material made of 1,000 mm wide cup base paper is applied with a reverse roll coater to a coating amount of 5 g / m. ² A (stacked) laminate material was prepared by coating to the extent of (dry).
[0099]
Next, using a known gravure printing ink manufactured by Toyo Ink Manufacturing Co., Ltd. on one side of the laminated material, a floral pattern was printed with a gravure printing plate having a plate depth of 35 μm.
[0100]
After the printed laminated material was cut into a sheet shape, the air holes 4 were formed by punching.
[0101]
Next, sodium hydrogen carbonate, which is a chemical foaming agent that generates gas by thermal decomposition, was dispersed in ethylene methacrylic acid copolymer resin (EMAA) to produce a thermally foamable resin.
[0102]
A circular pattern having a diameter of 5 mm is provided on a coated area of polyethylene terephthalate resin (PET) on the coated surface of polyethylene terephthalate resin (PET). A multi-sided plate was prepared and part-coated by a silk screen method.
[0103]
Next, as shown in FIG. 4, the laminated material patterned with the thermally foamable resin is set for 3 seconds between the mold 6 heated to 150 ° C., which is composed of the male mold 6a and the female mold 6b, The upper case 2a and the lower case 2b having the vent holes 4 are produced by drawing, and at the same time, a thermally foamable resin is thermally foamed to provide a protruding drug sheet support 3 inside the upper case 2a and the lower case 2b. Both cases 2a and 2b were combined to produce a paper insecticide container.
[0104]
As a result of storing the drug sheet 1 in which a drug solution such as an insect repellent component is impregnated in the paper insect repellent container produced by the above-described process, a space is formed between the drug sheet 1 and the upper case 2a and the lower case 2b. Was formed, and the drug component could be volatilized appropriately.
[0105]
<Example 13>
The paper insect repellent container of the present invention has a basis weight of 270 g / m. ² A reverse roll coater is used to apply an ethylene / vinyl acetate copolymer resin (EVA) dissolved in a known solvent on the inner surface of the base material made of a 1,000 mm wide cup base paper, and the coating amount is 5 g / m. ² (Dry) A coated laminate material was produced by coating to a degree, and a paper insecticide container was produced in the same manner as in Example 12.
[0106]
As a result of storing the drug sheet 1 in which a drug solution such as an insect repellent component is impregnated in the paper insect repellent container produced by the above-described process, a space is formed between the drug sheet 1 and the upper case 2a and the lower case 2b. Was formed, and the drug component could be volatilized appropriately.
[0107]
<Example 14>
The paper insect repellent container of the present invention has a basis weight of 270 g / m. ² A reverse roll coater is used to apply an acrylic resin dissolved with a known solvent on the inner surface of a base material made of a 1,000 mm wide cup base paper. ² (Dry) A coated laminate material was produced by coating to a degree, and a paper insecticide container was produced in the same manner as in Example 12.
[0108]
As a result of storing the drug sheet 1 in which a drug solution such as an insect repellent component is impregnated in the paper insect repellent container produced by the above-described process, a space is formed between the drug sheet 1 and the upper case 2a and the lower case 2b. Was formed, and the drug component could be volatilized appropriately.
[0109]
【The invention's effect】
The present invention comprises a combination of an upper case formed so that the lower surface is opened and a lower case formed so that the upper surface is opened. In the insect repellent container containing a medicine sheet having a plurality of vent holes provided on the body surfaces of the two cases, the inner surface side of the upper case and the lower case is pattern coated with a heat-foamable resin, At the same time as molding, the thermally foamable resin is thermally foamed to form a protruding drug sheet support portion, so that the drug sheet impregnated with a drug solution such as an insect repellent component is placed between the upper case and the lower case. A uniform space is formed, the chemical components can be volatilized appropriately, the insect repellent effect is improved, and excellent paper moldability, strength, appearance, drug sheet holdability, etc. It is possible to provide a container for the insecticide.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a paper insect repellent container according to the present invention.
FIG. 2 is a plan view showing an embodiment of a paper insect repellent container according to the present invention.
3 is a sectional view taken along line XX in FIG.
FIG. 4 is a side sectional view for explaining a step of molding a paper insect repellent container according to the present invention with a mold.
FIG. 5 is a perspective view of a plastic insect repellent container produced by conventional plastic molding.
6 is a cross-sectional view taken along line YY in FIG.
FIG. 7 is a side cross-sectional view of a conventional paper insect repellent container in which a vent hole is formed at the raised apex of the main body surface of the upper case.
FIG. 8 is a side cross-sectional view of a conventional paper insect repellent container in which a vent is formed in a recess in the main body surface of the upper case.
[Explanation of symbols]
1 ... Drug sheet
2 ... Container for insect repellent 2a ... Upper case 2b ... Lower case
2c ... Case body surface
3 ... Support for drug sheet
4 ... Vent
5 ... Flange
6 ... Mold 6a ... Male 6b ... Female
7 ... Ruled Line

Claims (5)

A combination of an upper case formed so that the lower surface is opened and a lower case formed so that the upper surface is opened. In the insect repellent container containing a drug sheet having a plurality of vent holes provided on the main body surface of the case, the foamed resin is pattern coated on the inner surface side of the upper case and the lower case, and the two cases are molded simultaneously. The thermally foamable resin is thermally foamed to form a protrusion-shaped drug sheet support, and the drug sheet support in both cases supports the drug sheet. A paper insect repellent container, characterized in that a uniform space is formed between them .   The both cases are made of a laminated material formed by laminating at least one thermoplastic resin layer or coating agent layer on both sides or one side of a base material mainly composed of a paper layer. The container for paper insect repellents as described.   The paper insect repellent container according to claim 1 or 2, wherein the forming method of the two cases is any one of a box forming method, a draw forming method, a vacuum forming method and a pressure forming method.   The paper insect repellent container according to any one of claims 1 to 3, wherein the method of thermally foaming the thermally foamable resin is based on the heat of the heated molding die 6 at the time of molding.   5. The thermally foamable resin is obtained by dispersing thermally expanded capsules in a thermoplastic binder, or by adding a chemical foaming agent that generates gas by thermal decomposition to a thermoplastic binder. The container for paper insect repellents of any one of these.

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