JP2021070648A - Interior material having anti-mosquito property, and method for producing the same - Google Patents

Abstract

To provide an interior material which exhibits mosquito repellency and knock-down property.SOLUTION: An interior material 1 has a base material layer 3 and a surface layer 2 laminated on the base material layer 3, in which the surface layer 2 is obtained by fixing a pyrethroid-based medicine. Preferably, 0.3-3.0 g/m2 of the pyrethroid-based medicine is fixed. A method for producing an interior material 1 includes: a coating step of coating a processing liquid containing a pyrethroid-based medicine and a binder resin to the surface layer; a heating step of heating the surface layer with a heat roll from the rear face thereof; a lamination step of laminating the base material layer onto the rear face of the subsequent surface layer; and a bonding step of bonding the surface layer and the base material layer by pinching the layers with the subsequent embossment roll and nip roll.SELECTED DRAWING: Figure 1

Description

The present invention relates to an interior material exhibiting excellent repellent property and knockdown property against mosquitoes and a method for producing the same.

In particular, in order to protect people from mosquitoes, mosquito nets that prevent the invasion of mosquitoes have been used conventionally. However, once the invasion is allowed, other methods such as exterminating mosquitoes by diffusing an insecticide into the air like a mosquito coil have been used.

Patent Document 1 describes a knitting (woven) in which a large number of meshes are formed by a resin thread in which a pest control agent is kneaded into a resin thread and a resin thread in which an insect growth regulator component is kneaded into the resin thread. The pest control net formed by is disclosed.

By the way, in recent years, there has been a demand for a method different from the conventional method due to changes in lifestyle. In other words, there has been a demand for a method that is easier than a control net or mosquito net that requires labor to handle, and that has excellent repellent performance against pests such as mosquitoes and is highly safe from the viewpoint of health and living environment in the living space. ..

Japanese Unexamined Patent Publication No. 2012-00106

The present invention has been made in view of such a technical background, and even if a mosquito invades due to indoor ventilation or the entry and exit of a person from a door or a front door, the mosquito will fly around all the time. It is an object of the present invention to provide an interior material that exhibits mosquito repellent and knockdown properties, because it is limited to interior materials such as indoor walls and ceilings.

In order to achieve the above object, the present invention provides the following means.

[1] Base material layer and
A surface layer laminated on the base material layer is provided.
The surface layer is an interior material to which a pyrethroid-based drug is adhered.

[2] The interior material according to item 1 above, wherein the pyrethroid drug is ^{fixed at 0.3 to 3.0 g / m 2.}

[3] The interior material according to item 1 or 2 above, wherein the pyrethroid drug is one or more pyrethroid drugs selected from the group consisting of permethrin, etofenprox, silafluofen, metoflutrin, transfluthrin, phenothrin, and pyrethrin. ..

[4] The interior material according to any one of items 1 to 3 above, wherein the surface layer contains a thermoplastic resin, and the base material layer and the surface layer are bonded by melt bonding of the thermoplastic resin.

[5] A method for manufacturing an interior material having a surface layer and a base material layer.
A coating step of applying a processing liquid containing a pyrethroid drug and a binder resin to the surface layer, and
A heating step of heating from the back surface of the surface layer with a heat roll,
Subsequent laminating step of laminating the base material layer on the back surface of the front surface layer,
A bonding step of bonding the surface layer and the base material layer by sandwiching them with an embossing roll and a nip roll, and
A method of manufacturing interior materials, which is characterized by being equipped with.

In the invention of [1], since the pyrethroid agent is adhered to the surface layer of the interior material, it is possible to exert an excellent repellent effect and a knockdown effect against mosquitoes.

In the invention of [2], by setting the amount of the pyrethroid drug adhered within this range, a sufficiently excellent repellent effect and knockdown effect can be exhibited against mosquitoes.

In the invention of [3], the interior material has good applicability to the surface layer, and since it gradually volatilizes, a non-transient repellent effect and a knockdown effect can be exhibited.

In the invention of [4], the interior material is obtained by sufficiently adhering the base material layer and the surface layer.

In the invention of [5], the required amount of the processing liquid containing the pyrethroid drug and the binder resin can be surely applied to the surface layer by the coating step. After that, the back surface of the surface layer is sufficiently heated by a heat roll by a heating step, the base material layer is laminated on the back surface of the surface layer by a subsequent laminating step, and then the surface layer and the base material layer are surely bonded by an adhesion step. Since it can be bonded, durability is further improved. In this way, it is possible to manufacture an interior material capable of exhibiting an excellent repellent effect and a knockdown effect against mosquitoes.

The cross-sectional view which shows one Embodiment of the interior material which concerns on this invention.

Next, the interior material having mosquito repellent property of the present invention and the method for producing the same will be described in detail. Although furniture and home appliances are installed in the room, the interior material occupies a large area and is used for a relatively long time. Examples of interior materials include wallpaper, gypsum board on the ceiling, plaster walls, wood panels, and waist walls.

FIG. 1 is a cross-sectional view showing an embodiment of an interior material according to the present invention. The interior material 1 according to the present invention includes a base material layer 3 and a surface layer 2 laminated on the base material layer 3, and the surface layer 2 has a pyrethroid-based drug adhered thereto. It is a feature.

Here, a case where the interior material 1 is a wallpaper will be described as an example of an embodiment of the present invention. The surface layer 2 is laminated on the upper side of the base material layer 3, and the surface layer 2 is preferably a thermoplastic resin sheet that is inexpensive and easy to process. Of these, a foamed vinyl chloride resin sheet with a three-dimensional texture with unevenness is preferable. The foamed vinyl chloride resin sheet is made by blending a foaming agent with a vinyl chloride resin, forming the sheet, and then heating to 220 ° C. to 240 ° C. for foaming. Further, when a fiber material such as a woven fabric is used as the surface layer 2, it can be processed while making the best use of the texture of the fiber material.

The base material layer 3 is not particularly limited, but it is preferable to use paper made of cellulose fibers such as natural pulp. The base material layer 3 is attached to the surface of concrete or a wooden board via an adhesive. For this reason, since it is difficult to release water, mold may be generated. Therefore, it is preferable to use a base material which has been subjected to antifungal and antibacterial treatment. Since the adhesive often contains VOC (volatile organic compound), VOC may be generated over time, so a starch-based glue containing no VOC is preferable.

A pyrethroid-based drug is fixed to the surface layer 2, and the fixing amount is preferably in the range of ^{0.3 to 3.0 g / m 2.} The fixing amount is less than 0.3 g / m ^2, long-term may not be effective over There are not preferable, fear or depression as interior material be greater than 3.0 g / m ^2, unnecessarily increase the amount of drug This is not preferable because it only causes an increase in cost. By setting the fixing amount in ^{the range of 0.3 to 3.0 g / m 2} , a sufficiently excellent repellent effect and knockdown effect against mosquitoes can be exhibited.

Examples of the pyrethroid drug include permethrin, etofenprox, silafluofen, metoflutrin, transfluthrin, phenothrin, and pyrethrin. Among them, one or more pyrethroid drugs selected from the group consisting of permethrin and etofenprox are preferable. In particular, permethrin and etofenprox have good applicability to the surface layer 2 of the interior material 1, and since they gradually volatilize, they can exert a non-transient effect. In this way, if mosquitoes invade the building due to the entry and exit of people including air conditioners, ventilation fans, rooms and passages, the mosquitoes will not fly around all the time, for example, the walls and ceiling of the room. Since the pyrethroid agent that adheres to the surface layer 2 comes into contact with the mosquitoes that have stopped on the interior material 1, an excellent repellent effect and a knockdown effect can be exhibited.

In the interior material 1 of the present invention, the surface layer 2 preferably contains a thermoplastic resin, and the thermoplastic resin is melted by heating. Therefore, the base material layer 3 and the surface layer 2 are surely melt-bonded. Has been done. Examples of the thermoplastic resin include vinyl chloride resin, polyethylene resin, polypropylene resin, polyamide resin, acrylonitrile-butadiene-styrene copolymer resin (ABS resin), acrylic resin and the like. Of these, vinyl chloride resin is more preferable in terms of flexibility and workability.

Next, a method for manufacturing the interior material 1 of the present invention will be described. The method for producing the interior material 1 is a method for producing an interior material provided with a surface layer 2 and a base material layer 3, which includes a coating step of applying a processing liquid containing a pyrethroid chemical and a binder resin to the surface layer 2. A heating step of heating from the back surface of the surface layer 2 with a heat roll, a subsequent laminating step of laminating the base material layer 3 on the back surface of the surface layer 2, and a subsequent laminating step of laminating the base material layer 3 with an embossing roll and a nip roll to obtain the surface layer 2. It is characterized by comprising an bonding step of adhering the base material layer 3.

By this manufacturing method, the pyrethroid-based chemical can be reliably fixed to the surface layer 2, and the surface layer 2 and the base material layer 3 can be reliably adhered by the heating step, the laminating step, and the bonding step. The durability is further improved. In this way, the interior material 1 capable of exhibiting an excellent repellent effect and a knockdown effect against mosquitoes can be produced.

(Applying process)
In the coating step, a processing liquid in which the pyrethroid drug and the binder resin are uniformly dispersed is applied to the surface layer 2. The method of applying the processing liquid in which the pyrethroid drug and the binder resin are uniformly dispersed on the surface layer 2 is not particularly limited, and examples thereof include a spray method, a gravure roll method, and a screen printing method. Of these, the gravure roll method and the screen printing method are preferable because the amount of the processing liquid applied can be controlled and the processing liquid can be applied uniformly.

(Heating process)
In the heating step, the back surface of the surface layer 2 is heated by a heat roll. The surface layer 2 can be heated by bringing the heat roll into contact with the back surface of the surface layer 2. Examples of the heat source of the heat roll include steam, an oil medium whose temperature has been raised by a heater, and the like. It may be appropriately adopted according to the characteristics of the material of the epidermis layer 2, and is not particularly limited.

(Laminating process)
In the laminating step, the base material layer 3 is laminated on the back surface of the front surface layer 2. In short, the surface layer 2 is laminated on the base material layer 3. The method of laminating the surface layer 2 on the base material layer 3 is not particularly limited, but for example, in the case of a long one, the roll-shaped surface layer 2 is unwound, and after each of the above steps, the roll-shaped surface layer 2 is rolled. The base material 3 of the above can be unwound and laminated on the upper side of the base material layer 3 via a roller or the like. Further, if it is a sheet rather than a long one, it can be laminated by placing the surface layer 2 on the base material layer 3 by a known method for each sheet.

(Adhesion process)
In the bonding step, following the heating step and the laminating step, the surface layer 2 and the base material layer 3 are bonded by sandwiching them with an embossing roll and a nip roll. The surface layer 2 is given an uneven design by the embossing roll, and the skin layer 2 and the base material layer 3 are more firmly bonded to each other from the back surface side of the skin layer 2 by sandwiching the surface layer 2 with the embossing roll and the nip roll. In this way, the surface layer 2 and the base material layer 3 can be firmly adhered and integrated.

Next, the present invention will be specifically described with reference to Examples, but the present invention is not particularly limited to those of these Examples. Table 1 shows the types of chemicals and the amount of adhesion to the interior material in each Example and Comparative Example, and Table 2 shows the results of the repellent test and the knockdown test.

<Example 1>
A printed vinyl chloride sheet was prepared as a base material layer, and a vinyl chloride film was prepared as a surface layer. Further, a processing liquid obtained by mixing 20 parts by weight of Etofenprox, 10 parts by weight of water, and 70 parts by weight of acrylic binder resin is applied onto a vinyl chloride film by a roll coating method, dried, and then heat-rolled from the back surface of the vinyl chloride film. (Surface temperature 180 ° C.) was brought into contact and heated. Subsequently, after laminating a vinyl chloride film on the printed vinyl chloride sheet, the printed vinyl chloride sheet and the vinyl chloride film were sandwiched and adhered by an embossing roll and a nip roll to obtain an interior material. The amount of the mosquito repellent adhering to the surface layer of the interior material was 1.2 g / m ² , and there was no discoloration of the surface layer. The repellent rate of the interior material thus obtained was 85%, and the knockdown rate (%) was 100%.

<Example 2>
A backing paper was prepared as a base material layer. A processing liquid obtained by mixing 20 parts by weight of permethrin, 10 parts by weight of water, 65 parts by weight of vinyl chloride resin and 5 parts by weight of a foaming agent was applied to the backing paper by a roll coating method. Subsequently, the wallpaper was heated at a temperature of 150 ° C. to obtain a wallpaper whose surface layer was made of vinyl chloride resin. The amount of the mosquito repellent adhered to the surface layer was 1.2 g / m ² , and there was no discoloration of the surface layer. The repellent rate of the wallpaper thus obtained was 70%, and the knockdown rate (%) was 90%.

<Example 3>
In Example 2, instead of a processing liquid in which 20 parts by weight of permethrin, 10 parts by weight of water, 65 parts by weight of vinyl chloride resin and 5 parts by weight of a foaming agent were mixed, 10 parts by weight of etofenprox, 5 parts by weight of water and vinyl chloride were used. A wallpaper was obtained in the same manner as in Example 2 except that a processing liquid in which 65 parts by weight of the resin and 5 parts by weight of the foaming agent were mixed was used. The amount of the mosquito repellent adhered to the surface layer was 0.5 g / m ² , and there was no discoloration of the surface layer. The repellent rate of the wallpaper thus obtained was 60%, and the knockdown rate (%) was 30%.

<Example 4>
In Example 2, instead of a processing liquid in which 20 parts by weight of permethrin, 10 parts by weight of water, 65 parts by weight of vinyl chloride resin and 5 parts by weight of a foaming agent were mixed, 30 parts by weight of etofenprox, 10 parts by weight of water and vinyl chloride were used. A wallpaper was obtained in the same manner as in Example 2 except that a processing liquid obtained by mixing 60 parts by weight of the resin and 3 parts by weight of the foaming agent was used. The amount of the mosquito repellent adhered to the surface layer was 2.3 g / m ² , and there was no discoloration of the surface layer. The repellent rate of the wallpaper thus obtained was 90%, and the knockdown rate (%) was 100%.

<Comparative example 1>
An unprocessed wallpaper to which the antimosquito repellent was not adhered was used as a reference for the repellent test and the <knockdown test> of Examples 1 to 4, Comparative Examples 2 and 3.

<Comparative example 2>
In Example 2, instead of the processing liquid in which 20 parts by weight of permethrin, 10 parts by weight of water, 65 parts by weight of vinyl chloride resin and 5 parts by weight of foaming agent were mixed, 25 parts by weight of picaridin, 10 parts by weight of water and 60 parts by weight of vinyl chloride resin were used. A wallpaper was obtained in the same manner as in Example 2 except that a processing liquid obtained by mixing 5 parts by weight of a foaming agent and 5 parts by weight was used. The amount of picaridin adhering to the surface layer was 2.0 g / m ² , and there was no discoloration of the surface layer. The repellent rate of the wallpaper thus obtained was 50%, and the knockdown rate (%) was 0%.

<Comparative example 3>
In Example 2, instead of the processing liquid in which 20 parts by weight of permethrin, 10 parts by weight of water, 65 parts by weight of vinyl chloride resin and 5 parts by weight of foaming agent were mixed, 10 parts by weight of paradichlorobenzene, 20 parts by weight of water and vinyl chloride resin were replaced. A wallpaper was obtained in the same manner as in Example 2 except that a processing liquid in which 70 parts by weight and 5 parts by weight of a foaming agent were mixed was used. The amount of paradichlorobenzene adhered to the surface layer was 2.0 g / m ² , and there was no discoloration of the surface layer. The repellent rate of the wallpaper thus obtained was 55%, and the knockdown rate (%) was 0%.

As is clear from Tables 1 and 2, the interior material of Example 1 and the wallpaper of Examples 2 to 4 of the present invention exhibited excellent repellent properties and knockdown properties against mosquitoes.

On the other hand, it is hard to say that the wallpapers of Comparative Examples 2 and 3 are clearly repellent to mosquitoes, and all of them were 0% and had no knockdown property.

<Judicial test>
An unprocessed interior material (non-sticking anti-mosquito repellent) and a processed interior material (fixed anti-mosquito repellent) were pasted in half in a 20 cm square acrylic box. Twenty adult female Aedes albopictus were released into this acrylic box, and the number of individuals resting on the sample was counted every time, and the resting ratio (%) was calculated. Then, the rest rate (%) after 6 hours was defined as the repellent rate (%), and it was calculated from the following formula. Table 2 shows the rest rate (%) (= repellent rate (%)) after 6 hours.
Repellent rate (%) = 100 x number of individuals stationary on raw interior material / (number of individuals stationary on raw interior material + number of individuals stationary on processed interior material)

<Knockdown test>
A 10 cm square processed interior material (fixed with antimosquito repellent) is placed on it, the bottom of a petri dish with a diameter of 9 cm is on top, and 10 adult female Aedes albopictus are released into the petri dish, and the individual is knocked down every 30 minutes. The number was counted and the percentage of knocked down individuals was calculated.

The repellent rate (%) of the processed interior material (fixed with mosquito repellent) calculated by the above test was 60% or more, and the percentage (%) of the number of knocked down individuals was 30% or more.

The interior material of the present invention is used as an interior material that exhibits repellent properties and knockdown properties against mosquitoes, and is suitably used as an indoor interior material such as wallpaper and ceiling materials.

1 ... Interior material 2 ... Surface layer 3 ... Base material layer

Claims (5)

Base layer and
A surface layer laminated on the base material layer is provided.
The surface layer is an interior material to which a pyrethroid-based drug is adhered. The interior material according to claim 1, wherein the pyrethroid drug is fixed at 0.3 to 3.0 g / m ^2. The interior material according to claim 1 or 2, wherein the pyrethroid agent is one or more pyrethroid agents selected from the group consisting of permethrin, etofenprox, silafluofen, metoflutrin, transfluthrin, phenothrin, and pyrethrin. The interior material according to any one of claims 1 to 3, wherein the surface layer contains a thermoplastic resin, and the base material layer and the surface layer are bonded by melt bonding of the thermoplastic resin. A method for manufacturing an interior material having a surface layer and a base material layer.
A coating step of applying a processing liquid containing a pyrethroid drug and a binder resin to the surface layer, and
A heating step of heating from the back surface of the surface layer with a heat roll,
Subsequent laminating step of laminating the base material layer on the back surface of the front surface layer,
A bonding step of bonding the surface layer and the base material layer by sandwiching them with an embossing roll and a nip roll, and
A method of manufacturing interior materials, which is characterized by being equipped with.

Images