JP5997475B2 - Fragrance film - Google Patents

Description

  The present invention relates to an aromatic film, a method for producing the same, and a storage device for paper and fabric products.

  The main purpose of packaging bags, containers, and paper containers was to protect the items to be packaged from physical damage such as light and shock, but nowadays, more aggressively reflecting the increasing demand for comfort and so on. In addition, there is a demand for a function such as fragrance to the package.

  Patent Document 1 discloses a tissue paper-containing box having a scented synthetic resin film provided on the upper surface inside side, having a score line. The technology of Patent Document 1 is that a fragrance is only contained in a synthetic resin film, and the fragrance is released from the synthetic resin film to perfume the contents. Therefore, the fragrance will be dissipated in a short period of time, the fragrance will not persist in the period of use, and the fragrance has already been dissipated during distribution storage before use, and the fragrance will not feel at the start of use was there.

  Moreover, the fragrance | flavor density | concentration cannot be raised only by including a fragrance | flavor in synthetic resins, such as polyethylene illustrated in patent document 1, and since the synthetic resin has the weak force which hold | maintains a fragrance | flavor even if it includes once. There was a difficulty in sustaining the fragrance.

Similarly, Patent Documents 2 and 3 propose a carton provided with a window film in which a slit for taking out tissue paper is formed.
In Patent Documents 2 and 3, a microcapsule in which a fragrance component is encapsulated is carried on the surface of a window film by coating, the microcapsule is broken by pulling out a tissue paper of the next layer, and the fragrance is affixed to sanitary paper It is to do.

In the techniques of Patent Documents 2 and 3, since the fragrance is not lost unless the microcapsules are destroyed, long-term storage is possible. However, in the repeated use of tissue paper, if the microcapsules in contact with the tissue paper are destroyed, the aroma becomes thin, and the aroma cannot be sufficiently maintained during the period of use.
Furthermore, vibrations during distribution and transportation may rub the top tissue paper and the back of the window film, destroying the microcapsules, and sometimes fail to feel a fragrance at the start of use.

  Moreover, in order to carry | support the microcapsule containing a fragrance | flavor to a window film, since the cost of the microcapsule itself is high and the process of application | coating and drying for carrying | supporting to a film is also complicated, the technique of patent documents 2 and 3 is There was a drawback of cost.

  Furthermore, the fragrance film is stored in the form of a roll, and the fragrance film is fed out from the roll during the production of a carton. However, there is a problem that the microcapsule surfaces are blocked from each other and cannot be fed out smoothly.

Japanese Utility Model Publication No.59-172184 JP 2010-179946 A JP 2007-8542 A

  The object of the present invention is to maintain the fragrance even after long-term distribution and storage, and the fragrance does not weaken even if vibration is given during transportation, etc., and when used for the outlet of the storage device for paper and fabric products, An object of the present invention is to provide a fragrance film in which fragrance is maintained for a long time even when paper and fabric products are repeatedly taken out.

According to the present invention, the following fragrance films and the like are provided.
1. A fragrance film comprising a base material layer containing a fragrance and a scent barrier layer in contact with both surfaces of the base material layer, the fragrance film having a cut portion for taking out an article.
2. 2. The fragrance film according to 1, wherein the scent barrier layer comprises an elastomer containing an ethylene-vinyl alcohol copolymer and a styrene block.
3. The fragrance film according to 1 or 2, wherein the base material layer includes an elastomer containing a styrene block and a liquid fragrance.
4). The fragrance film according to any one of 1 to 3, wherein a polyolefin layer is further laminated on the surface of the at least one fragrance barrier layer opposite to the base material layer.
5. A fragrance is injected into an extruder for forming the base material layer, kneaded with a resin as a base material, and co-extruded with a fragrance barrier layer, or a fragrance barrier layer and a polyolefin layer to be laminated at a time 1 to 1 5. A method for producing an aroma film according to any one of 4 above.
A paper / fabric product storage device having the fragrance film according to any one of 6.1 to 4, wherein the paper / fabric product storage device takes out the paper / fabric product from a cut portion provided in the fragrance film.
7). A storage device provided with a paper / fabric product outlet, wherein the fragrance film according to any one of 1 to 4 is provided from the inside of the storage device to the outlet so as to cover the outlet. And a paper / fabric product storage device for taking out the paper / fabric product from a notch provided in the aromatic film.
8). The paper / fabric product storage device according to 6 or 7, wherein the paper / fabric product is tissue paper.
9. A storage device for a paper / fabric product according to any one of 6 to 8, formed from a paper carton.

  According to the present invention, the fragrance is maintained even after long-term distribution and storage, and the fragrance does not weaken even when vibration is given during transportation, etc., and when used for the outlet of the storage device for paper and fabric products, It is possible to provide a fragrance film that maintains fragrance for a long period of time even when paper and fabric products are repeatedly taken out.

It is the development view (A) of the paper carton manufactured in Example 1, and its left side view (B). 1 is a view showing a paper carton manufactured in Example 1. FIG. It is a figure of the paper carton piled up by evaluation (A conditions) of Example 1. FIG.

The fragrance film of the present invention comprises a base material layer containing a fragrance, and a scent barrier layer in contact with both surfaces of the base material layer, and has a cut portion for taking out an article.
The fragrance film of the present invention can be provided at the outlet of a storage device for paper and fabric products such as tissue paper.

By providing a scent barrier layer on the upper and lower surfaces of the base material layer, the diffusion direction of the volatile fragrance contained in the base material layer can be controlled. Incense).
Thereby, it can suppress that a fragrance dissipates from an aroma film surface for a short time, and even after product distribution, it can perfume on paper and fabric products, such as a sanitary paper suitably.

Further, since the fragrance diffuses from only the cross section of the cut portion and perfumes the sanitary paper or the like, even if the sanitary paper or the like is repeatedly taken out, the fragrance component is replenished to the cut portion each time, and the reduction of the flavoring effect is small.
That is, the concentration of the fragrance perfume on sanitary paper or the like becomes equal to the concentration in the base material layer in a short time in the vicinity of the cut, so that no more fragrance is released from the film. Further, since the next flavoring of the sanitary paper is performed after the sanitary paper is taken out, it can be used for a long time without waste.

[Base material layer]
A base material layer contains resin and a fragrance | flavor used as a base material.
As resin used as a base material, an elastomer (styrene elastomer) containing a styrene block is preferable. The elastomer containing a styrene block is a rubbery block copolymer containing a styrene block and a diene block. An elastomer containing a styrene block is preferable because it can contain a large amount of perfume.

  Examples of rubber block copolymers containing styrene blocks and diene blocks include styrene-butadiene copolymers, styrene-isoprene copolymers, styrene-butadiene-styrene copolymers, styrene-isoprene-styrene copolymers, and styrene. -Isoprene-butylene-styrene copolymer, styrene-ethylene-propylene-styrene copolymer, and hydrogenated products thereof (hydrogenated products) can be used, and one or more can be used in combination.

Examples of the fragrance contained in the base material layer include alcohols, ketones, aldehydes; terpenes such as limonene, menthol, and linalool, and these can be used alone or in combination. These fragrances may be diluted with dipropylene glycol, paraffin oil or the like.
The perfume is preferably a liquid. A fragrance | flavor shall be 1-20 weight% with respect to a base material layer, for example.

  As a method of adding a fragrance to the base resin, a liquid fragrance is sprinkled on the base resin and adsorbed for a certain period of time, or the liquid fragrance is directly pressed into the cylinder of a single screw extruder or twin screw extruder by a pump. While a method (press-in method) of kneading with the resin as the base material can be mentioned, the press-in method is preferable.

  When using a styrene-based elastomer as the base resin, the styrene-based elastomer is easy to adsorb fats and oils, so a liquid fragrance may be sprinkled and adsorbed, but some fragrances are difficult to impregnate and take time. In some cases, the press-fitting method is preferred.

  According to the press-fitting method, the liquid perfume can be easily kneaded, for example, as long as the film-forming property is not impaired. Moreover, various fragrance | flavors can be switched in a short time, and since contamination of the apparatus of a manufacturing field, flavoring, etc. can be suppressed and a manufacturing environment can be maintained in a favorable state, it is preferable.

The thickness of the base material layer is, for example, 5 to 100 μm.
The base material layer may contain a polyolefin, an ethylene-vinyl alcohol copolymer, or the like, if necessary, in addition to the above components. As the polyolefin and ethylene-vinyl alcohol copolymer, those described later can be used.

[Aroma barrier layer]
Examples of the material forming the scent barrier layer include polyethylene terephthalate, ethylene-vinyl alcohol copolymer, aluminum foil, silicon-deposited polyethylene phthalate, nylon, and the like, and one or more of these may be used in combination. Can do.

  When a stored item such as sanitary paper is taken out from the cut portion of the fragrance film, the paper or fabric product may be broken if the film is hard. The scent barrier layer preferably contains a material having cutting properties, and it is expected that the flexibility of the whole film is improved by combining with the base material layer having flexibility. Examples of the material having a cutting property include an ethylene-vinyl alcohol copolymer.

  In the storage device provided at the take-out port of the fragrance film of the present invention, when the content is taken out from the storage device, the content is scented by direct contact with the cut section. Therefore, it is preferable that the scent barrier layer has a fragrance retention property rather than a sustained release property.

The ethylene-vinyl alcohol copolymer is preferable because it has a high fragrance barrier property (fragrance retention), that is, it can maintain the perfume effect when taking out the article for a long period of time.
When using an ethylene-vinyl alcohol copolymer, the one where a compounding ratio is high is preferable, for example, it is 30 to 100 weight% with respect to the whole fragrance barrier layer.

  Moreover, you may use the material which mix | blended the said material with the elastomer (styrene-type elastomer) containing a styrene block. The styrenic elastomer is the same as the resin used as the base material of the base material layer.

When a styrene elastomer is blended, flexibility can be imparted to the film. Moreover, when laminating | stacking polyolefin mentioned later on the outer side of a fragrance barrier layer, adhesiveness with a polyolefin layer can be improved.
The content of the styrene-based elastomer is desirably 50% by weight or less with respect to the weight of the resin of the scent barrier layer. If it exceeds 50% by weight, the scent barrier property may be insufficient. Moreover, 30 weight% or less is desirable with respect to the weight of resin of a fragrance barrier layer.

  Moreover, when a styrene-based elastomer is blended with an ethylene-vinyl alcohol copolymer, the appearance is improved by low-speed casting.

  From the above, it is possible to form the scent barrier layer with a material obtained by blending an unstretched ethylene-vinyl alcohol copolymer with an elastomer containing a styrene block, which can achieve both flexibility and scent barrier properties, and at the time of extrusion production. It is preferable because of its excellent stability.

  The thicker the scent barrier layer is, the better the scent barrier property is. However, the flexibility of the fragrance film may be impaired, and therefore it is preferably 30 μm or less.

When ethylene-vinyl alcohol copolymer resin is used alone for the scent barrier layer, the scent barrier property is sufficient if the thickness is 2 μm or more.
In addition, when using a material in which a styrene elastomer is blended with an ethylene-vinyl alcohol copolymer resin, the flexibility is improved, but the fragrance barrier property is lowered. Therefore, the layer is formed more than when the ethylene-vinyl alcohol copolymer resin is used alone. It should be thick, for example, 5 μm or more.

  The scent barrier layer may contain an antiblocking agent, an antistatic agent, and the like, if necessary, in addition to the above components.

  Further, polyolefin may be laminated on the outer side (opposite side of the base material layer) of at least one scent barrier layer (polyolefin layer).

  Providing a polyolefin layer is preferable in the following points: Flexibility can be imparted to the fragrance film; Cutting property of the fragrance tape is improved at the time of manufacturing the storage device; Adhesion to the storage device is improved; Yes; sanitary paper can be removed smoothly without being caught or torn.

Polyolefin layers are preferably provided on both scent barrier layers.
The thickness of the polyolefin layer is, for example, 5 to 30 μm.

  Examples of the polyolefin include polyethylene and polypropylene, and polyethylene is preferable. Examples of the polyethylene include low-density polyethylene and linear low-density polyethylene. Examples of the polypropylene include random polypropylene. Maleic anhydride-modified polyolefin made of polyethylene or polypropylene or a mixture thereof can also be used.

  In addition, when improving the adhesiveness of a polyolefin layer and a fragrance barrier layer, it is preferable to use a maleic anhydride modified polyolefin or a mixture of this and the above polyolefin.

  Moreover, you may add an antiblocking agent to a polyolefin layer suitably. By adding an anti-blocking agent, it is possible to easily reduce the resistance of the roll-shaped film when the storage device is manufactured.

  Furthermore, you may provide an adhesive bond layer between a fragrance barrier layer and polyethylene. The adhesive layer is not particularly limited, and maleic anhydride-modified polyolefin, ethylene-vinyl acetate copolymer, or the like can be used.

[Aromatic film]
The fragrance film of this invention has the said base material layer and a scent barrier layer, and the scent barrier layer is provided in contact with both surfaces of the base material layer. The fragrance film of the present invention can contain the above-mentioned polyolefin layer, adhesive layer and the like in addition to the base material layer and the scent barrier layer. Moreover, as long as it has a desired function, each layer may be made into two or more layers formed from different materials.
Although the total thickness of an aroma film is arbitrary, 20-100 micrometers is preferable on handling as a film for packaging.

Further, as described above, the thicker the scent barrier layer, the better the scent barrier property because the scent barrier property is improved. However, the thickness of the scent barrier layer may be limited by the thickness of the entire film.
Therefore, when it is required to release a large amount of perfume in a short period of time, the base layer is thinned to increase the scent concentration, and when a long-term sustained release is required with a thin scent, the base layer is The scent concentration can be reduced by increasing the thickness.

  To reduce the scent concentration, the amount of the scent component itself may be reduced, or the scent component may be diluted with various mineral oils or various vegetable oils. For dilution of the fragrance, mineral oil such as paraffin oil, plant-derived oil such as castor oil and soybean oil can be used.

  The fragrance film of the present invention has a cut portion which is a product outlet. When the aromatic film of the present invention is provided in a paper / fabric product storage device, the paper / fabric product can be taken out from the outlet.

  The fragrance film of the present invention is an atmosphere improving film having a multilayer structure, and the base material layer containing the fragrance component is exposed in the cross section by providing the cut portion. By exposing the base material layer to the cut portion, the paper / fabric product in the vicinity of the cut is already scented in the storage device before taking out, and when taking out the paper / fabric product from the cut portion, The fabric product is effectively scented.

Examples of the shape of the cut portion include holes having various shapes such as a slit, a round shape, a triangle shape, and a star shape, and can be appropriately selected depending on the application.
In order to increase the amount of fragrance on the packaged item, a cut shape that increases the contact surface with the contents at the time of removal may be selected. For example, when the object to be packaged has almost no thickness, such as a ribbon shape or a sheet shape, a slit shape is particularly preferable because the contact surface with the cut section cross section can be increased.

The fragrance film of this invention can be manufactured by laminating | stacking a base material layer, a fragrance barrier layer, and the said other layer as needed.
Although the lamination method is not particularly limited, for example, a method of laminating a separately produced fragrance barrier layer by dry lamination or extrusion lamination on the base material layer, and a method of forming these layers by co-extrusion at a time are mentioned. A multilayer coextrusion method is desirable in terms of productivity. That is, the manufacturing cost can be suppressed, and the fragrance film can be manufactured at a low cost.

  Examples of the multi-layer coextrusion molding apparatus include a T-die casting apparatus, a T-die water-cooled take-up apparatus, a round die bottom blowing take-up apparatus, and an inflation molding machine in which two or more extruders are connected.

  The base material layer may be formed by extruding pellets obtained by impregnating a perfume, preferably a liquid perfume, with a resin (for example, styrene-based elastomer) as a base material in advance, or an extruder in which a gear pump is connected to a twin-screw extruder. Alternatively, the liquid perfume may be directly injected into the cylinder of the single screw extruder.

The method of injecting and kneading the liquid fragrance directly into the cylinder of the extruder to produce the base material layer is desirable because the injection amount and concentration of the fragrance and the type of the fragrance can be easily changed.
Moreover, it is preferable to produce an aroma film by co-extruding a base material layer and other layers such as a fragrance barrier layer, and then laminating them at a time.

[Paper / fabric products (paper products or fabric products) storage equipment]
The paper / fabric product storage device of the present invention has the fragrance film of the present invention, and has a structure in which the paper / fabric product is taken out from a cut portion provided in the fragrance film.
By having the fragrance film of the present invention, the fragrance is maintained even when the storage device has been distributed and stored for a long period of time, and the fragrance does not weaken even if vibration is applied during transportation. Further, even if the paper / fabric product is repeatedly taken out, the perfume effect is maintained for a long time.
In addition, it is not necessary to perfume the paper / fabric product in advance, and various scents can be easily imparted to the paper / fabric product simply by attaching an aroma film to the storage device.

  The shape of the storage device for paper / fabric products is not particularly limited, and may be any shape as long as an internal space for storing paper / fabric products is provided, and examples thereof include hexahedrons such as cubes and rectangular parallelepipeds. It is done.

The raw material of the storage device (main body) for paper and fabric products is not particularly limited, but paper materials such as cardboard are preferred. Examples of the paper material include wood pulp and waste paper.
When the storage device of the present invention is manufactured from paper material, for example, a hexahedral storage device (paper carton) can be obtained by folding a carton blank made of paper material.

  Paper and fabric products are not particularly limited. For example, tissue paper (face cleaning paper, decorative paper, etc.), dust paper, paper towels (kitchen paper, etc.), toilet paper, disposable paper such as Watting (paper cotton), etc. Paper is mentioned, and tissue paper is preferable.

The paper / fabric product storage device of the present invention is provided with the fragrance film of the present invention at the outlet of the paper / fabric product.
The shape of the paper / fabric product outlet is not particularly limited, and may be appropriately selected according to the shape of sanitary paper or the like. For example, in the case of a rectangular parallelepiped storage device, the shape of the outlet is a horizontally long shape along the longitudinal direction of the storage device, for example, a substantially rectangular shape, a substantially oval shape, an elliptical shape, a rhombus shape, a polygonal shape, etc. It can be a shape.

  The take-out port is normally closed at the distribution stage before use, and the take-out port can be formed by breaking along a perforation or the like provided in the storage device.

It is preferable that the fragrance film is provided at the take-out port from the inside of the storage device so as to cover the take-out port.
When the fragrance film is provided from the inside of the storage device, it is possible to protect the sanitary paper etc. from external dust and foreign substances, and when taking out the sanitary paper etc., the pop-up sanitary paper etc. is stored in the storage container. The sanitary paper can be held in a state of protruding from the outlet.

  The fragrance film is preferably bonded in an annular shape so as to surround the take-out port. There is no restriction | limiting in particular in the adhesion | attachment method of an aromatic film and a storage device, For example, methods, such as an adhesive agent, a double-sided tape, and heat sealing | fusion, are mentioned.

Example 1
(1) Production of film A 40 mm diameter biaxial extruder (Ex.1) is used as an extruder for producing a perfume layer (base material layer), and an extrusion of 30 mm in diameter is used as an extruder for producing both surface layers (scent barrier layers). Two machines (Ex.2, Ex.3) were used.

Ex. The liquid fragrance | flavor was inject | poured into the cylinder with the pump, extruding resin used as a base material by No. 1, and the fragrance | flavor layer was manufactured.
Specifically, a pellet-like septon 2063 (manufactured by Kuraray Co., Ltd., MFR = 230 g / 10 min, density = 880 kg / m ³ ), which is a styrene elastomer, is used as the base resin. Then, d-limonene, which is a fragrance component of orange oil, was poured while adjusting the fragrance component concentration to be about 10% by weight, and the fragrance layer was kneaded and extruded.

Ex. 2 and Ex. No. 3, Eval F104B (manufactured by Kuraray Co., Ltd., component: ethylene vinyl alcohol copolymer, MFR at 210 ° C. = 10 g / 10 min, density = 1190 kg / m ³ ) and Quintac 3520 (Nippon Zeon Corporation) as extrusion resins A company-made component: styrene-isoprene block copolymer, MFR at 200 ° C. = 7 g / 10 min, density = 880 kg / m ³ ) dry blended at a weight ratio of 70:30 was used.

  The resin extruded from the three extruders is Ex. 3 / Ex. 2 / Ex. 1 / Ex. 2 / Ex. 3 were laminated in the order of 3, and an aroma film was obtained through a T-die casting apparatus having an effective width of 350 mm.

The thickness of the fragrance film was 80 μm, and two cuts were made by in-line slits to obtain two rolls of a film having a width of 80 mm and a length of 1000 m (paper tube diameter 75 mm).
The thickness of each layer of the film was 20 μm of scent barrier layer / 40 μm of fragrance layer / 20 μm of scent barrier layer, and the total thickness was 80 μm.

(2) Production of paper carton A paper carton, which is a storage device for tissue paper, was produced as follows. FIG. 1A is a development view of the manufactured paper carton, FIG. 1B is a left side view of the development view, and FIG. 2 is a perspective view of the paper carton.
1A and 1B, a carton blank 10 provided with a ruled line having the dimensions shown in FIGS. 1A and 1B and a perforation 12 for lid cutting is continuously supplied to the box making machine in a single sheet, and the inside of the carton blank 10 The EVA (ethylene vinyl acetate) hot melt adhesive was applied along the outer periphery of the perforation 12 for lid cutting.

  In parallel with this, while feeding the film from the roll of the fragrance film, a cut (tissue paper outlet) 22 was put in the film flow direction with a cutter, and the fragrance film was cut into a length of 230 mm. This fragrance film 20 was adhered to the glued carton blank 10. Thereafter, a 240 mm × 115 mm × 50 mm paper carton shown in FIG. 2 was made using a hot melt adhesive.

  In addition, one part of the side surface (115 mm × 50 mm surface) was not glued, and two sets of 200 sheets (400 sheets) of folded tissue paper were stored in a paper carton and sealed by glueing.

(3) Evaluation of fragrance retention Paper cartons were stored under the following storage conditions, and fragrance retention was evaluated by smell. The results are shown in Table 1.

[Condition A]
The paper cartons containing the tissue paper produced above were stacked in 5 rows × 4 rows as shown in FIG. 3 and placed in cardboards of 490 mm × 250 mm × 260 mm. This cardboard was subjected to a random vibration test for 30 minutes in each of the vertical, horizontal and height directions based on JIS Z0231 Annex A using a vibration tester (VS-1000-5 manufactured by IMV), and The carton was opened and the intensity of the scent was judged by smell.

[Condition B]
Corrugated cardboard packed with paper cartons in the same manner as in Condition A was stored at 30 ° C. for 1 month without conducting a vibration test, and then the paper cartons were opened and the scent strength was determined by smell.

[C condition]
After the vibration test under the A condition, the container was stored at rest in the same manner as under the B condition, and then the paper carton was opened, and the strength of the scent was determined by smell.

[D condition]
After unpacking the paper carton containing the tissue paper produced above, leave it in the room at 24 ° C and leave it in a room, and once every week from the time of unpacking, 20 groups of 40 tissue papers at a time. After taking out, the intensity of the scent was judged by smell. A total of 10 extractions were performed until the scent of the tissue paper disappeared or until the tissue paper ran out.

In addition, in AD conditions, the intensity | strength of the fragrance was determined as follows.
◎: Scented as well as the first one ○: Slightly weaker than the first, but fragrant well △: Scent is very weak ×: Scent is not at all

Example 2
Ex. An aromatic film was produced and evaluated in the same manner as in Example 1 except that the extruded resins 2 and 3 were as follows, and the thickness of each layer was changed to 10 μm / 10 μm / 40 μm / 10 μm / 10 μm. The results are shown in Table 1.
Ex. 2: Eval F104B (component: ethylene-vinyl alcohol copolymer, manufactured by Kuraray Co., Ltd., MFR at 210 ° C. = 10 g / 10 min, density = 1190 kg / m ³ )
Ex. 3: Linear low-density polyethylene (Neozex 0234CL manufactured by Prime Polymer Co., Ltd. (MFR = 2.0 g / 10 min, density = 921 kg / m ³ ) 94% by weight, Prime Polymer Co., Ltd. anti-blocking agent BB33 (3% by weight) %) And slip agent EE47 (3% by weight))

Comparative Example 1
Ex. Except that both the extruded resins 2 and 3 were linear low-density polyethylene (same as Ex. 3 in Example 2) and each layer had a thickness of 20 μm / 40 μm / 20 μm to produce an aroma film, the same as in Example 1. A film was manufactured and evaluated. The results are shown in Table 1.

Comparative Example 2
(1) Production of base film Ex. Except that the extruded resins 1, 2 and 3 were all linear low-density polyethylene (Neozex 0234CL (MFR = 2.0 g / 10 min, density = 921) manufactured by Prime Polymer Co., Ltd.), the same as in Example 1. A film (base film) was produced.

(2) Preparation of perfume-containing microcapsules Polystyrene sulfonate sodium salt (Alfa Aesar; anionic surfactant) aqueous solution containing 5% by weight of ethylene-maleic acid copolymer resin (trade name: EMA-31, manufactured by Monsanto Co.) To 300 g, 150 g of d-limonene was added and stirred at a speed of 2500 rpm with a homomixer to prepare an O / W type emulsion.

  Next, separately, 30 g of melamine, 100 g of 35 wt% formaldehyde aqueous solution and 100 of water are mixed, pH is adjusted to about 9 by adding a small amount of sodium hydroxide, and the mixture is stirred at 80 ° C. for 30 minutes. Was prepared. This aqueous solution was added to the above emulsion and stirred at 70 ° C. for about 2 hours to cure the capsule wall to prepare an aqueous dispersion in which anionic microcapsules having the capsule wall were dispersed.

Next, 250 g of an aqueous solution of 10% by weight of decagrin 1-O (trade name of glycerin fatty acid ester, manufactured by Nikko Chemicals; nonionic surfactant) is added to and mixed with this aqueous dispersion, and the anionic microcapsules are re-introduced. Dispersed.
The re-dispersed microcapsule dispersion was added to an acrylic resin as a binder by 10% by weight and stirred to obtain a coating solution (1) for a base film.

The film was applied to both surfaces of the film so that the solid content was 10 g / m ² while being fed out, and dried with hot air at 60 ° C. to support the fragranced microcapsules on the film. In addition, before apply | coating a microcapsule, the corona discharge process was performed to the surface and back surface of a film.

  The film carrying the microcapsules on both sides was cut to a length of 230 mm, cuts to be taken out as tissue paper outlets, and adhered to the glued carton blank. Thereafter, paper cartons were boxed and evaluated in the same manner as in Example 1. The results are shown in Table 1.

  In Example 1, the film forming speed of the fragrance film was 20 m / min. This speed is satisfactory from the viewpoint of productivity. However, when the speed was further increased, stretch lines in the flow direction were generated. In Example 2, no vertical lines were observed even when the film forming rate was increased to 40 / min.

Moreover, in Example 2, when a fragrance film was drawn out and affixed to a carton blank, the fragrance film slipped and the feeding was performed more smoothly.
Furthermore, in Example 2, since the fragrance film was soft and slippery, there was little resistance when the tissue paper was taken out from the cut portion every time, and the fragrance film could be pulled out smoothly.

  The fragrance film of the present invention can be used for storage devices for paper and fabric products such as tissue paper.

10 carton blank 12 perforation 20 aromatic film 22 notch

Claims (8)

A fragrance film including a base material layer containing a fragrance and a scent barrier layer in contact with both surfaces of the base material layer, the fragrance film having a cut portion exposing the cross-section of the base material layer containing the fragrance ,
The fragrance film in which the fragrance barrier layer includes an elastomer containing an ethylene-vinyl alcohol copolymer and a styrene block . The fragrance film according to claim 1 , wherein the base material layer includes an elastomer containing a styrene block and a liquid fragrance. The fragrance film according to claim 1 or 2 , wherein a polyolefin layer is further laminated on the surface of the at least one scent barrier layer opposite to the base material layer. A fragrance film produced by injecting a fragrance into an extruder for forming the base material layer, kneading it with a resin as a base material, and co-extruding the scent barrier layer or the scent barrier layer and the polyolefin layer and laminating them at once. A manufacturing method of
The manufacturing method of the fragrance film in any one of Claims 1-3 with which the material which forms the said fragrance barrier layer contains the elastomer containing an ethylene-vinyl alcohol copolymer and a styrene block . A paper / fabric product storage device having the fragrance film according to any one of claims 1 to 3 , wherein the paper / fabric product storage device takes out the paper / fabric product from a notch provided in the fragrance film. A storage device provided with a paper / fabric product extraction port, wherein the fragrance film according to any one of claims 1 to 3 covers the extraction port from the inside of the storage device. A paper / fabric product storage device for removing the paper / fabric product from a notch provided in the fragrance film. The paper / fabric product storage device according to claim 5 or 6 , wherein the paper / fabric product is tissue paper. The paper / fabric product storage device according to any one of claims 5 to 7 , formed from a paper carton.