KR20190094136A - Aroma window profile and the manufacturing method thereof - Google Patents

Abstract

The present invention relates to an aroma window profile and a manufacturing method thereof and, more specifically, relates to an aroma window profile and a manufacturing method thereof, wherein when the window profile is manufactured, a wood flour-incense composite in which powder-shaped incense is mixed with a material before extruding the profile is contained to emit a fragrance for a long period of time. Therefore, an aroma is provided to emit a fragrance.

Description

Aroma window profile and the manufacturing method

The present invention relates to a profile for aroma windows and a manufacturing method thereof, and more particularly, to a wood powder-fragrance complex in which the fragrance in the form of powder is mixed with a raw material before profile extrusion so that the fragrance is continuously emitted for a long time in the manufacture of the window profile. The present invention relates to a profile for aroma windows and doors and a method for manufacturing the fragrance, which are embodied to give off fragrance.

Generally, windows and doors refer to windows and doors of a building, and have a function of a wall partitioning the inside and the outside of a building or a house, and the functions of airtightness, heat insulation, sound insulation, and the like.

Such windows and doors are mainly used as a frame constituting the basic configuration, a profile extruded to suit the shape of the window frame using synthetic resin such as PVC. In order to have a variety of textures or patterns on the upper surface or the side of the window profile exposed to the outside during construction, by attaching a decorative film (sheet paper) of synthetic resin material to increase the aesthetics to have a wood texture rather than a synthetic resin texture.

However, in order to attach a separate film or sheet to the extruded window profile, it is necessary to move separately to the place where the profile lapping facility is installed, and then go through the process of lapping the extruded profile on the lapping apparatus to produce efficiency and cost. It is disadvantageous, and difficult to repair if scratches occur during transportation, processing, and construction after lapping, and there is a disadvantage that is not good for workers or users because the adhesive is used for wrapping.

In order to overcome this, a double extrusion (coextrusion) method of double extrusion of the window profile was used. The double extrusion is a method of extruding and adhering PVC or other raw materials to one side of the profile using a sub-extruder in a state where the profile is extruded to have a uniform shape by using the extruder as described above. However, even in this case, there was a disadvantage in that the appearance of the profile surface to which the PVC is applied is not natural, and in the case of the profile surface of the PVC pigment, there is a problem such as discoloration and harming the aesthetics.

On the other hand, in the case of a window and window profile, the fragrance is not good because it does not give a scent and simply gives a plastic smell as it is, and the fragrance component having high volatility is lost due to the heat and pressure applied during the molding process even if the fragrance is included. As it was not intended to give the direction as intended, there was a disadvantage that adding too much flavor during molding may adversely affect the molding of synthetic wood.

In recent years, the company has been pursuing eco-friendly products as interior and exterior materials for buildings and houses, threatening family health such as unstable physical and mental disorders and 21st century epidemics such as atopy. While living health is very poor.

For this reason, in response to the desire to protect family members, modern people are using music therapy, picture therapy, fragrance therapy using perfume or fragrance as a kind of mental and physical therapy.

In particular, the use of fragrances, such as perfumes and fragrances, are very old, similar to the history of mankind. Generally, solid or powdered fragrances of fragrances are called fragrances, and liquid fragrances are called fragrances. It is called.

The range of use of perfumes and fragrances is very wide, but perfumes and fragrances as cosmetics are inclined to the body and clothing, resulting in cleanliness and mental beautification.

Aromatherapy using herbal scents of herbs is to obtain positive effects on the body and mind by using essential oils obtained from the flowers, leaves, stems, roots and fruits of plants.

It was in the twentieth century that this aromatherapy was scientifically studied and attracted attention as an area of alternative medicine.

For the same reason, there have been studies on various directional products such as wallpaper, flooring, decorative materials, windows, etc. as a material constituting the building materials, in particular, a living space.

In accordance with this trend, Korean Laid-Open Patent Publication No. 2000-0061974 discloses a functional wallpaper containing medicinal plants used in fragrance therapy, and Korean Laid-Open Patent Publication No. 2000-0053993 shows wood that can evaporate natural fragrance. It discloses a wallpaper and a wrapping paper containing wood flour and herb plants.

However, the conventional wallpaper has a problem that the fragrance is excessively divergent by heat, the fragrance fragrance capsule is destroyed during the manufacturing process to reduce the persistence of the fragrance and the efficiency of the fragrance is very low.

In addition, the role of windows, which was only one component of a building, required various functionalities and decoration as the living standard and living environment improved, and the fragrance material mixed with functional oil was coated in general windows, but the fragrance material was simply There was a problem that the provision of aroma as a coated level can only be limited.

Therefore, while the direction can be sustained for a long time, the development of more advanced windows and doors that can exert the direction effect for a long time is required.

KR 10-2000-0061974 A KR 10-2000-0053993 A

Therefore, one object of the present invention is to add a function such as comfort to the interior space by using a window or the like manufactured by using the direction to have a direction with natural texture in the manufacture of the window profile used for the manufacture of a window and the like. This improves functionality.

Another object of the present invention is to provide a method for producing a window profile having a direction with natural texture.

It is still another object of the present invention to provide windows and windows made of the above-described windows and windows having natural texture and direction to add functions such as comfort to an indoor space using such windows.

In order to achieve the above object, the present invention is a profile in which a skin layer is formed by double-extruding a resin composition for co-extrusion through a sub-extruder on one side of the profile extruded from the main extruder,

The resin composition for co-extrusion comprises 15 to 30% by weight wood powder-fragrance complex and 70 to 85% by weight of synthetic resin,

The wood flour-fragrance complex is a combination of wood flour and solid perfume as a binder,

The wood powder-flavor complex comprises a wood powder-flavor mixture consisting of 60 to 99% by weight of wood powder and 1 to 40% by weight of a powder, and 1 to 30 parts by weight of a binder based on 100 parts by weight of the wood powder-flavor mixture,

The solid perfume is a perfume material; And it provides an aromatic window profile that is an aromatic capsule comprising a polymer layer coated with urea-formaldehyde or melamine-formaldehyde on the outer peripheral portion of the fragrance material.

In addition, the present invention comprises the steps of (1) wood flour-flavor composites to obtain a wood powder-flavor complex by combining the wood powder and solid perfume with a binder;

(2) a co-extrusion resin composition manufacturing step of preparing a co-extrusion resin composition by mixing the wood powder-fragrance complex 15 to 30% by weight and synthetic resin 70 to 85% by weight; And

(3) forming a skin layer on one side of the profile extruded from the main extruder by double extrusion into the coextrusion resin composition through a sub-extruder; In the manufacturing method of the profile for the direction window comprising a,

The wood powder-flavor complex comprises a wood powder-flavor mixture consisting of 60 to 99% by weight of wood powder and 1 to 40% by weight of a powder, and 1 to 30 parts by weight of a binder based on 100 parts by weight of the wood powder-flavor mixture,

The solid perfume is a perfume material; And an aromatic capsule comprising a polymer layer coated with urea-formaldehyde or melamine-formaldehyde on the outer circumference of the fragrance material.

In addition, the present invention provides a window manufactured by using the prepared profile for the direction window.

According to the present invention, the skin layer formed by co-extrusion on one side of the profile comprises a wood powder-flavor composite, thereby giving the fragrance to the skin layer of the window profile having the same or similar appearance as natural wood in appearance. There is an effect of providing a profile for the direction window and the direction window manufactured using the same to increase the reality (reality) to improve the value, and also to provide a good fragrance to the indoor occupants by the direction.

1 is a perspective view showing the structure of the directional window for the present invention.
Figure 2 is a cross-sectional view showing the structure of the directional window for the present invention.
Figure 3 is a view showing the configuration of the sub-extruder for producing a skin layer is a profile for the direction window and the invention.

The profile for the direction window of the present invention is a profile in which a skin layer is formed by double-extruding a coextrusion resin composition on a side of the profile extruded from the main extruder through a subextruder, wherein the coextrusion resin composition is a wood powder-flavor composite 15 to 30% by weight and 70 to 85% by weight of synthetic resin,

The wood flour-fragrance complex is a combination of wood flour and solid perfume as a binder,

The wood powder-flavor complex comprises a wood powder-flavor mixture consisting of 60 to 99% by weight of wood powder and 1 to 40% by weight of a powder, and 1 to 30 parts by weight of a binder based on 100 parts by weight of the wood powder-flavor mixture,

The solid perfume is a perfume material; And an aromatic capsule including a polymer layer coated with urea-formaldehyde or melamine-formaldehyde on the outer circumference of the perfume material.

Hereinafter, a profile for a direction window of the present invention will be described with reference to an embodiment shown in the drawings.

1 is a perspective view showing the structure of the directional window profile of the present invention, Figure 2 is a cross-sectional view showing the structure of the directional window profile of the present invention.

3 is a view showing the configuration of a sub-extruder for producing a skin layer is a profile for the direction windows and doors of the present invention.

As shown in Fig. 1 and Fig. 2, the profile 100 for the direction window according to the present invention is formed with a profile 10 having a predetermined cross-sectional shape, and has a predetermined thickness on the upper surface of the profile 10. The skin layer 12 which has is formed.

The profile 10 and the skin layer 12 formed on the upper surface thereof are preferably manufactured by coextrusion using the molding apparatus of FIG. 3. When using co-extrusion method, various colors can be realized in the profile for windows and windows, and by integrating the skin layer with the profile, post-processing such as attaching sheet paper after profile production is unnecessary, which not only reduces the cost but also improves the processability of the product. In addition, it is environmentally friendly by not using an adhesive, and has an advantageous effect on the surface scratches.

The thickness of the skin layer 12 can be molded so as to be in the range of 0.3-0.6mm, preferably formed to have a thickness of 0.5mm.

The resin composition for coextrusion of the present invention includes a wood flour-flavor composite and a synthetic resin.

That is, the wood powder-coating compound is mixed with the raw material of the coextrusion composition for forming the skin layer 12 formed on the upper part of the profile 10 of FIG. 1 and coextruded on the upper part of the profile to form a skin layer. By doing so, the window profile has the texture of natural wood and at the same time has directivity.

The resin composition for coextrusion may comprise 15 to 30% by weight of wood powder-flavor composite and 70 to 85% by weight of synthetic resin, and in this case, it is preferable because it can give an excellent direction with the feeling of wood.

The synthetic resin may be used without limitation as long as it is a thermoplastic resin used for molding a window profile, but more preferably, polystyrene (PS), polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polymethyl meta Preference is given to using at least one selected from acrylate (PMMA), acrylate-styrene-acrylonitrile (ASA) copolymer resin, acrylonitrile-butadiian-styrene (ABS) copolymer resin.

The wood flour-flavor complex may include a wood flour-flavor mixture of wood flour and spices. The wood flour-flavor mixture is 60 to 99% by weight of wood powder and 1 to 40% by weight of perfume, preferably 70 to 90% by weight of wood powder and 10 to 30% by weight of perfume, more preferably 80 to 85% by weight of wood powder and flavor 15 It may include from 20% by weight, and in this case, it is preferable because it can give an excellent direction with the feeling of wood to the window profile.

Specifically, the wood powder-fragrance complex may be a combination of the wood powder and the solid fragrance with a binder. In this case, the wood flour and the solid flavorings, which are mostly in powder form, can be mixed with each other in the solid phase and bound using a binder to fix these solid materials against each other. The binder may be one or more selected from the group consisting of carboxymethyl cellulose (CMC), starch, gum arabic, gelatin, and polyvinyl alcohol (PVA), but these are exemplary, and the binder is not limited thereto. It will be appreciated by those skilled in the art that other binders, preferably water soluble and / or hydrolyzable polymeric materials, can be used, and the present invention is intended to include them.

Preferably, the binder is included in an amount within the range of 1 to 30 parts by weight based on 100 parts by weight of the wood flour-flavor mixture to appropriately bind the wood flour and the solid perfume to a sufficient strength. Therefore, it can be understood that most solid fragrance products can be applied as is obtainable, and those skilled in the art can purchase and use solid fragrance products commercially. As described above, the wood flour-flavoured composite of the bound form using a binder can be ground through a grinding process to have an appropriate particle size, for example, an average particle size of 1 to 100㎛, within this range The wood flour-fragrance complex can be easily mixed with the synthetic resin constituting the skin layer of the window profile to facilitate the preparation of a skin layer of excellent physical properties, but the degree of gastric crushing, that is, the range of average particle size, is exemplary. As it is, the present invention is not intended to be limited thereto.

In addition, the solid perfume is a perfume material; And it may be an aromatic capsule including a polymer layer coated with urea-formaldehyde or melamine-formaldehyde on the outer circumference of the perfume material. However, the aromatic capsules are exemplary, and the present invention is not intended to be limited thereto. The aromatic capsule is within the range of the average particle size of 1 to 100㎛ can be easily mixed and kneaded with the synthetic resin constituting the synthetic wood of the aromatic capsule to facilitate the production of synthetic wood of excellent physical properties, but The range of the average particle size of the aromatic capsule is exemplary, and the present invention is not intended to be limited thereto.

The fragrance constituting the wood powder-fragrance complex or the fragrance material that can be used in the preparation of the fragrance capsule is a terpene known as a floral fragrance, a fruit scent, a sweet scent, and a forest bath component that can stimulate good smell by stimulating a human smell. Natural or complex scents, such as tree scents, may be used. For example, lavender scent, pine scent, cypress scent, rose scent, rosemary scent, peppermint scent, jasmine scent, apple scent, orange scent, acacia scent, banana Flavors, chocolate flavors.

The polymer material constituting the polymer layer that can be used for the production of the aromatic capsule should have a release property that the fragrance component is not volatilized as much as possible by encapsulating the perfume material with a resin and microencapsulating, and at the same time when a physical impact is applied The polymer layer has to be destroyed to have a characteristic to volatilize the perfume material. The resin used in the polymer layer is preferably urea-formaldehyde or melamine-formaldehyde. The aromatic capsule may be prepared by wrapping the polymer material for the polymer layer around a solid or liquid perfume material as completely as possible by a known method of spray drying, interfacial polymerization, phase separation, or polymerization.

The aromatic capsule is preferably in the form of a conventional powder, the average particle size is preferably from 1 to 100㎛, the particle size of less than 1㎛ may cause problems in uniform coating due to the degree of dispersion or agglomeration during operation And, exceeding 100㎛ may be undesirable because it may cause problems to precipitate or uniform coating during operation.

Optionally, the wood flour-flavor composite may be a liquid flavoring adsorbed on wood flour. In this case, the adsorption may be performed by absorbing the liquid perfume to the wood powder, and the wood powder-flavor composite to which the liquid perfume is adsorbed is preferably made of a water-soluble resin such as polyvinyl alcohol or starch. It can be further coated with a polymeric material to slow down the volatilization rate of the liquid fragrance adsorbed in the wood meal so that it can be released slowly, ie, slowly.

The resin composition for coextrusion may further include other antibacterial agents to prevent discoloration and corrosion. The antimicrobial agent may be an inorganic antimicrobial agent, an organic antimicrobial agent, or a natural antimicrobial agent extracted from plants. The inorganic antimicrobial agent may be aluminosilicate of zeolite type and silver sodium zirconium phosphate of zinc oxide or silver zirconium type. The organic antimicrobial agent may be an antimicrobial agent produced through organic synthesis, such as chlorine, bromine, and imidazole. The natural antimicrobial agent may be a plant extract from grapefruit, red ginseng, cypress, magnolia, cinnamon and the like.

Preferably, it is preferable to use a plant extract of natural ingredients as an antibacterial agent.

In addition, the coextrusion resin composition may further include additives such as physical property increasing agents, metal oxides, abrasion and scratch resistance increasing agents, and pigments, and these are well known to those skilled in the art so that they can be purchased and used commercially. Can be understood.

In addition, the present invention

(1) a wood flour-flavor composite manufacturing step of combining wood flour and solid perfume with a binder to obtain wood flour-flavor complex;

(2) a co-extrusion resin composition manufacturing step of preparing a co-extrusion resin composition by mixing the wood powder-fragrance complex 15 to 30% by weight and synthetic resin 70 to 85% by weight; And

(3) forming a skin layer by double extrusion of the coextrusion resin composition on one side of the profile extruded from the main extruder; In the manufacturing method of the profile for the direction window comprising a,

The wood powder-flavor complex comprises a wood powder-flavor mixture consisting of 60 to 99% by weight of wood powder and 1 to 40% by weight of a powder, and 1 to 30 parts by weight of a binder based on 100 parts by weight of the wood powder-flavor mixture,

The solid perfume is a perfume material; And an aromatic capsule comprising a polymer layer coated with urea-formaldehyde or melamine-formaldehyde on the outer circumference of the fragrance material.

Optionally, the wood powder-flavor composite manufacturing step may be prepared by adsorbing the liquid flavoring to the wood powder. Since it has been described in detail in the configuration of the profile for the direction windows and windows above, repeated description is omitted.

The co-extrusion resin composition manufacturing step is a step of preparing a co-extrusion resin composition by mixing the prepared wood powder-fragrance complex with a synthetic resin, wood powder-fragrance complex 15 to 30% by weight and synthetic resin 70 to 85% by weight Do it.

Since the synthetic resin is the same as described above, a detailed description thereof will be omitted.

And forming the skin layer 12 by double-extrusion with the co-extrusion resin composition on one side of the profile extruded from the main extruder 120, as shown in Figure 3, the main extruder 120 Through the coextrusion resin composition supplied through the sub-extruder 140 on one side of the profile extruded through the step of forming a skin layer 12 by co-extrusion on one side of the profile.

In the method of manufacturing a direction window profile according to the present invention, the wood powder-drug composite is mixed with the raw material of the composition for coextrusion to form the skin layer 12 formed on the upper part of the profile 10 as described above. By co-extrusion to the upper layer to form a skin layer, the window profile has a texture of natural wood and at the same time directional.

Hereinafter, preferred examples are provided to help the understanding of the present invention, but the following examples are merely for exemplifying the present invention, and various changes and modifications within the scope and spirit of the present invention are apparent to those skilled in the art. It will be appreciated that such changes and modifications fall within the scope of the claims of the present invention.

EXAMPLE

Example 1

1. Preparation of wood flour-flavor complex:

Three kinds of fragrance capsules prepared by the main drying method were each wrapped with three kinds of fragrances having acacia, pine, and cypress, with an urea-formaldehyde resin to have an average particle diameter of 15 μm.

Each of the three types of aromatic capsules are mixed with wood powder, the wood flour-flavor mixture consisting of 85% by weight of the wood powder and 15% by weight of the aromatic capsules, and 20 parts by weight of the binder based on 100 parts by weight of the wood powder-flavor mixture The wood flour-flavoured complex was prepared by bonding using polyvinyl alcohol, and subsequently milled to a size of 75 µm in average particle diameter to obtain three wood flour-flavoured complexes.

2. Preparation of profiles for directional windows:

The resin composition for coextrusion was prepared by mixing 20% by weight of the wood flour-flavor composite, 75% by weight of PVC resin, and 5% by weight of other additives.

Separately, a resin composition for use in the production of a profile was prepared, which used a resin composition for producing a conventional profile.

Thereafter, a profile for direction windows and doors was prepared by double extrusion using a resin composition for profile production and a resin composition for coextrusion.

Looking in detail with respect to the manufacturing process profile for the direction window as follows.

FIG. 3 is a diagram illustrating a die and a coextruder 140. First, polystyrene (PS), polyethylene (PE), and polypropylene (PP) are provided through a hopper (not shown) installed at one side of the main extruder 120. When a pallet or compound material made of thermoplastic resin such as polyvinyl chloride (PVC) or ABS resin is added, it is heated by a heater which is a heating means in the main extruder 120 to dissolve the material in a gel state. It is conveyed forward by the rotation of the screw of 120. The profile is then extruded through the die 110 in front of it in shape.

On the other hand, the sub-extruder 120 is installed on one side of the die 110 installed on one side of the main extruder.

In addition, the die is composed of the main extrusion die 112 and the coextrusion die 114, the profile resin composition of the gel state supplied through the main extruder 120 is injected into the main extrusion die 112 Extruded into a profile, the coextrusion resin composition supplied through the sub-extruder 140 is injected into the co-extrusion die 114, the ball on one side of the profile 10 passed through the main extrusion die 112 The skin layer 12 is formed by extrusion.

After that, the profile on which the skin layer is formed on one side is manufactured through a calibrator (not shown) and a cooling device (not shown), and is made into a profile for the final direction window through a take-off (not shown) and a cutter (not shown).

3. Sensory test of directional window profiles

The home window was manufactured using the profile for the direction windows and doors manufactured as described above, and the windows consist of a window frame fixed to the building and a window fold fixed to the window frame to open and close the window. A profile was used and manufactured using a conventional window profile for windows with no orientation.

This is summarized in Table 1, the sensory test results are also shown in Table 1.

Table 1 below is a sensory test results table showing an application example of the direction window.

The sensory test was based on the following evaluation criteria with only the sense of smell by the panel of 20 adult men and women at the beginning of the window production, after 6 months (0.5 years) of the window production, 1 year after the window production, and 3 years after the window production. The scores were evaluated and averaged, except that, one year after the manufacture of the windows and three years after the manufacture of the windows, the samples were evaluated immediately after being subjected to the harsh experiments repeatedly exposed to the harsh conditions.

The harsh condition is 100 cycles (regarded as one year) by repeating the temperature of 1 ° C every minute and repeating the increase in temperature and temperature of 1 ° C every minute within the temperature range starting from -30 ° C to 40 ° C. And 300 cycles (referred to after three years) were performed.

Then, two points were evaluated depending on whether the fragrance of the fragrance was detected or not, and five points were evaluated, ranging from weak (1 point) to strong (5 points), depending on the intensity of the fragrance. (1 point) to strong (5 points) were evaluated. However, the affinity preference of the fragrance was evaluated by requiring the panel to evaluate the association of natural forest baths.

division Whether the scent is detected Strength of fragrance Fragrance
preference Early 0.5 years 1 year 3 years Early 0.5 years 1 year 3 years Example 1 U U U U 3.2 2.9 2.7 2.2 3.0 Example 2 U U U U 4.1 3.7 3.4 2.3 3.2 Example 3 U U U U 3.1 2.8 2.6 2.3 3.3 Comparative Example 1 U U radish radish 2.1 1.3 0 0 3.1

Example 2

Instead of containing 20% by weight of the wood powder-fragrance complex in the resin composition for co-extrusion in Example 1 obtained by producing a fragrance window by using the profile for the fragrance window prepared by using the wood fragrance wood powder-fragrance complex 30% by weight The result is.

Example 3

This is a result obtained by producing a direction window prepared by using the direction profile produced by the resin composition for coextrusion in Example 1 in both the window frame and the window.

Comparative Example 1

In preparing the window profile, it was carried out in the same manner as in Example 1 except that the wood powder-fragrance complex was not used and the same amount of wood powder and solid pine scent was used in the same amount as in Example 1 Aromatic windows were prepared.

As shown in Table 1, each of Examples 1 to 3 according to the present invention was able to detect the fragrance for a long time compared to Comparative Example 1 and the intensity of the fragrance was also high, especially among the examples, -The higher the content of the fragrance complex, and the higher the content of the wood flour-fragrance complex in the skin layer, the higher the intensity of the fragrance was found.

10: profile 12: skin layer
100: profile for direction window 110: die
112: die for main extrusion 114: die for coextrusion
120: main extruder 40: auxiliary extruder
170: Calibrator

Claims (5)

A profile in which a skin layer is formed by double-extruding a resin composition for co-extrusion through a sub-extruder on one side of the profile extruded from the main extruder,
The resin composition for co-extrusion comprises 15 to 30% by weight wood powder-fragrance complex and 70 to 85% by weight of synthetic resin,
The wood flour-fragrance complex is a combination of wood flour and solid perfume as a binder,
The wood powder-flavor complex comprises a wood powder-flavor mixture consisting of 60 to 99% by weight of wood powder and 1 to 40% by weight of a powder, and 1 to 30 parts by weight of a binder based on 100 parts by weight of the wood powder-flavor mixture,
The solid perfume is a perfume material; And an aromatic capsule comprising a polymer layer coated with urea-formaldehyde or melamine-formaldehyde on the outer circumference of the fragrance material. The method of claim 1,
The synthetic resin is polystyrene (PS), polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polymethyl methacrylate (PMMA), acrylate-styrene-acrylonitrile (ASA) copolymer resin, A profile for aroma windows, characterized in that it comprises at least one thermoplastic resin selected from acrylonitrile-butadiane-styrene (ABS) copolymer resins. The method of claim 1,
Said binder is at least one member selected from the group consisting of carboxymethyl cellulose (CMC), starch, gum arabic, gelatin and polyvinyl alcohol (PVA). The method of claim 1,
Profile for aroma windows and doors, characterized in that the average particle size of the aromatic capsule is within the range of 1 to 100㎛. (1) a wood flour-flavor composite manufacturing step of combining wood flour and solid perfume with a binder to obtain wood flour-flavor complex;
(2) a co-extrusion resin composition manufacturing step of preparing a co-extrusion resin composition by mixing the wood powder-fragrance complex 15 to 30% by weight and synthetic resin 70 to 85% by weight; And
(3) forming a skin layer by double extrusion of the coextrusion resin composition on one side of the profile extruded from the main extruder; Including,
The wood powder-flavor complex comprises a wood powder-flavor mixture consisting of 60 to 99% by weight of wood powder and 1 to 40% by weight of a powder, and 1 to 30 parts by weight of a binder based on 100 parts by weight of the wood powder-flavor mixture,
The solid perfume is a perfume material; And an aromatic capsule comprising a polymer layer coated with urea-formaldehyde or melamine-formaldehyde on the outer circumference of the fragrance material.

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