JP2003200518A - Interior finish skin material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an interior finish skin material having a high performance radiation function capable of efficiently accumulating the cold of the cold air in the nighttime, and capable of lowering the surface temperature of the trim material of a car and the air temperature in the compartment of the car in the daytime, to provide and the trim material for a vehicle using the skin material. <P>SOLUTION: The skin material 11 is constituted by successively laminating a design layer 12, a packing layer 13 and an intermediate radiation layer 14 from above, and the intermediate radiation layer 14 comprises a resin material containing a room temperature far infrared radiation filler having high heat conductivity. The trim material for the vehicle using the skin material is also disclosed. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interior skin material, and more particularly to an interior skin material capable of effectively producing radiant cold heat at night.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 6, a seat cover material for a vehicle such as an automobile has a design layer 52 and a backing layer 5.
3. Laminated urethane layer 57 made of urethane foam, and back base cloth layer 58.
Performance has been improved and improved in order to improve design characteristics such as touch, durability, and cushioning. However, in the existing configuration, since the heat radiation effect due to the radiation from the design layer 52 and the backing layer 53 is small, the interior of the seat is warmed by the high-temperature cabin air and direct sunlight, and the laminated urethane layer 57 and the backside Since the heat conductivity of the base cloth layer 58 is small, the heat inside the heated seat is accumulated,
For example, when the vehicle is parked in the hot summer in the midsummer, the temperature of the seat surface rises significantly, and even if the air conditioner is operated after riding, the back and thighs are still hot.

On the other hand, a cold heat storage material 55 is provided on the back surface of the skin material 51.
By arranging the cold air for cold storage to reduce the temperature of the seat surface in the daytime, the heat radiation effect due to the radiation from the design layer 52 and the backing layer 53 is small, and the laminated urethane layer 57 and the back substrate are arranged. Since the cloth layer 58 has low thermal conductivity, there is a problem that cold heat cannot be stored in cold heat at night.

[0004]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems of the prior art, and can efficiently store cold heat of night-time cold air to lower the vehicle interior surface temperature and the vehicle interior air temperature during the daytime. The present invention provides an interior skin material having a high-performance heat dissipation function and a vehicle interior material using the skin material.

[0005]

In order to achieve the above object, a skin material having a structure in which a design layer, a backing layer, and an intermediate heat dissipation layer are laminated in this order from the top, as described in claim 1, The skin material is devised, wherein the intermediate heat dissipation layer is made of a resin material containing a high-temperature-conductivity room-temperature far-infrared radiation filler.

[0006]

According to the present invention described in the claims, the following effects are obtained for each claim.

The inner skin material of the present invention comprises a design layer, a backing layer and an intermediate heat dissipation layer, as described in claim 1.
In detail, by adopting the configuration described below, it is possible to provide an interior skin material with a high heat dissipation effect that can efficiently store cold heat at night and efficiently reduce the surface temperature of interior materials and air temperature inside the vehicle during the day. And The means for solving the conventional problems will be described in detail below.

In the conventional construction of the interior skin material, the design layer,
It consists of a backing layer and a laminar urethane layer made of foamed urethane, and the performance of these parts has been improved and improved in order to improve the design and durability such as appearance and touch, durability, and cushioning. However, in the conventional configuration, since the heat conductivity of the laminar urethane layer is small, the heat inside the seat that has been warmed is accumulated, so that, for example, when the vehicle is parked under the scorching sun in midsummer, it causes a significant temperature rise on the seat surface. Even if the air conditioner is operated, the back and thighs are still hot.

On the other hand, by arranging a cold heat storage material on the back surface of the skin material, cold heat is stored cold at night, and even if an attempt is made to lower the temperature of the seat surface in the daytime, the thermal conductivity of the laminar urethane layer is small, The cold air at night could not be stored as cold heat.

In view of the above, according to the first aspect of the present invention, there is provided a skin material having a structure in which a design layer, a backing layer, and an intermediate heat dissipation layer are laminated in this order from the top, and the intermediate heat dissipation layer has a high thermal conductivity at room temperature. Since the resin material is made by kneading the far-infrared radiation filling material, heat transfer from the cold heat storage layer made of the cold heat storage material arranged on the back surface of the interior skin material to the air in the vehicle is promoted. That is, the nighttime cold air is efficiently stored as cold heat in the cold heat storage layer, and the heat of the cold heat storage layer moves through radiation and heat conduction in the intermediate heat dissipation layer to the backing layer and the design layer as far infrared rays. It is radiated and moves from the design layer to the air inside the vehicle by heat transfer and radiation, and the surface temperature of interior materials such as the seat surface during the daytime and the air temperature inside the vehicle can be lowered.

According to the second aspect of the present invention, since the content of the high thermal conductivity room temperature far infrared radiation filler in the resin material of the intermediate heat dissipation layer is set to 1 to 50% by mass, the intermediate heat dissipation layer is formed. The cold heat is efficiently transmitted through this, and the surface temperature of the interior skin material of the present invention can be reduced.

According to a third aspect of the present invention, there is provided a skin material having a structure in which a design layer, a backing layer, and an intermediate heat dissipation layer are laminated in this order from the top. / Or because it is composed of a non-woven fabric and / or a woven fabric containing fibers containing a high thermal conductivity room temperature far infrared radiation filler, since it contains a room temperature far infrared radiation filler, it is easy to absorb heat rays, Moreover, since the heat rays can be quickly re-radiated, the heat transfer from the cold heat storage layer made of the cold heat storage material arranged on the back surface of the interior skin material to the air inside the vehicle is promoted, and the night cold air is efficiently cooled and cooled. Can store heat. Regarding the transfer of heat from the cold heat storage layer to the backing layer / design layer via the fiber structure of the intermediate heat dissipation layer, during cold heat storage at night, the heat of the cold heat storage layer is
Radiated as far infrared rays from the cold heat storage layer, the far infrared rays emitted are absorbed by the normal temperature far infrared ray emitting fiber structure of the intermediate heat dissipation layer, and are emitted as far infrared rays from such fiber structure, thereby forming a backing layer and a design layer. It depends on how it is transmitted.

Further, the intermediate heat dissipation layer contains a non-woven fabric containing a fiber containing a high thermal conductivity room temperature far infrared radiation filler and /
Alternatively, when using the interior skin material of the present invention as a seat skin material by using a fiber structure made of a woven fabric,
It is possible to achieve both cold heat storage performance and cushioning properties when seated. That is, when the occupant is seated in the daytime, the seating pressure compresses the fiber structure of the intermediate heat dissipation layer, thereby increasing the contact area between the fibers having high thermal conductivity and increasing the thermal conductivity of the intermediate heat dissipation layer, and the cold heat storage layer. The movement of cold heat from the body to the human body is promoted, and the occupant can feel the cool air on the back and back of the thigh when sitting.

In the invention of claim 4, the mixing ratio (mixing ratio) of the fiber containing the room temperature far infrared radiation filler and / or the high thermal conductivity room temperature far infrared radiation filler to the fiber structure is 5. Since it is -100%, the effect of claim 3 can be achieved more sufficiently or reliably.

According to the invention of claim 5, as the high thermal conductivity room temperature far infrared radiation filler contained in the fibers of the intermediate heat dissipation layer, carbon powder particles such as carbon black and carbon fibers are used. The thermal conductivity is high, and far infrared rays over a wide wavelength range of 4 to 20 μm or more can be efficiently radiated. Therefore, the effect of efficiently storing cold heat in the nighttime cold air and the transfer of heat from the cold heat storage layer to the air in the vehicle are promoted, so that the effect that the occupant feels the cool air on the back or the back of the thigh when seated is obtained.

In the invention according to claim 6, since carbon black or carbon fiber is contained in the fibers of the intermediate heat dissipation layer in an amount of 1 to 50% by mass, the effect of claim 5 can be achieved more sufficiently or reliably. it can.

In the invention according to claim 7, since the surface density of the fiber structure used for the intermediate heat dissipation layer is 4 to 500 g / m ² , the effects of claims 3 to 6 can be more sufficiently or reliably achieved. Can be achieved.

In the invention according to claim 8, since the layer thickness of the fiber structure used for the intermediate heat dissipation layer is 0.15 to 50 mm, the effects of claims 3 to 7 can be achieved more sufficiently or reliably. it can.

According to the invention of claim 9, since the backing layer is a resin material containing 10 to 50% by mass of the room temperature far infrared radiation filler, the heat rays radiated from the intermediate heat dissipation layer can be efficiently emitted. Can be absorbed. The absorbed heat conducts heat to the backing layer having high thermal conductivity, and is radiated to the design layer as heat rays from the design layer side of the backing layer. A part of the heat ray radiated to the design layer is directly transmitted to the vehicle interior air, and the rest is absorbed by the design layer and then radiated as a heat ray from the design layer to the vehicle interior air.

According to the tenth aspect of the present invention, the resin material used for the backing layer contains inorganic powder particles such as TiO ₂ , Al ₂ O ₃ and Mg as a room temperature far infrared radiation filler.
O, as SiO _2, at least one and / or high thermal conductivity at room temperature far-infrared radiation filler selected from among _{2MgO 2 · 2Al 2 O 3 ·} 5SiO 2, since the kneading carbon black or carbon fiber, cold heat storage The transfer of heat by radiation from the layers to the design layer is promoted. Regarding the transfer of heat from the backing layer to the design layer and the transfer of heat from the design layer to the air in the passenger compartment by heat ray radiation, the backing layer serves as a room temperature far-infrared radiation filler, and the inorganic powder, Ti,
_{O 2, Al 2 O 3,} MgO, SiO 2, 2MgO 2 · 2Al 2
Since it is made of a resin material containing at least one selected from O ₃ .5SiO ₂ and / or a room temperature far-infrared radiation filler having high thermal conductivity, heat rays radiated from the intermediate heat dissipation layer can be efficiently absorbed. . The absorbed heat conducts heat to the backing layer having high thermal conductivity, and is radiated to the design layer as heat rays from the design layer side of the backing layer. A part of the heat ray radiated to the design layer is directly transmitted to the vehicle interior air, and the rest is absorbed by the design layer and then radiated as a heat ray from the design layer to the vehicle interior air.

According to the invention of claim 11, a heat storage layer surface layer is provided below the intermediate heat dissipation layer, and the heat storage layer surface layer is made of a resin material, and the resin material used for the heat storage layer surface layer is kept at room temperature. Infrared emitting fillers such as TiO ₂ , Al ₂ O ₃ and M
gO, as _{SiO 2, 2MgO 2 · 2Al 2} O 3 · 5SiO least one inorganic powder or granular material selected from among ₂ and / or high thermal conductivity at room temperature far infrared radioactive fillers, carbon black or carbon fiber 5 Since 70% by mass was kneaded, the surface of the cold heat storage layer is in close contact with the surface layer of the heat storage layer having room temperature far infrared radiation, so the transfer of heat by radiation from the cold heat storage layer to the intermediate heat dissipation layer is promoted. To be done. This is particularly remarkable when the intermediate heat dissipation layer has a fiber structure. That is, since the heat release from the cold heat storage layer is mainly performed by heat conduction, when there is no room temperature far-infrared radiation heat storage layer surface layer, the contact state between the intermediate heat radiation layer and the cold heat storage layer, which is a fiber structure, Since it is a point or line contact between the cold heat storage material and the fiber, it is difficult to transfer sufficient heat from the cold heat storage layer to the intermediate heat dissipation layer, but the normal temperature far infrared radiation heat storage layer on the surface of the cold heat storage layer. When the surface layers are in close contact with each other, heat is transferred from the cold heat storage layer to the surface layer of the heat storage layer by heat conduction, and the heat is transferred from the surface layer of the heat storage layer to the intermediate heat dissipation layer mainly by radiation.

In the twelfth aspect of the present invention, since the thermoplastic resin is used for the backing layer and the surface layer of the heat storage layer,
The filler can be uniformly dispersed in the resin material, and the room-temperature far-infrared radiation of the filler and / or the room-temperature far-infrared radiation of high thermal conductivity can be effectively exhibited.

According to the invention of claim 13, the design layer is made of an inorganic powder or granular material as a room temperature far infrared radiation filling material.
_{TiO 2, Al 2 O 3,} MgO, SiO 2, 2MgO 2 · 2
At least 1 selected from Al ₂ O ₃ .5SiO ₂
Since it is a resin material containing seeds, heat transfer in the design layer is promoted.

In the invention according to claim 14, since the design layer has a fiber structure of a thermoplastic resin, good texture is realized, and the room temperature far infrared radiation filler can be uniformly distributed. Therefore, good appearance and touch are exhibited, and heat transfer of the design layer is promoted.

In the invention of claim 15, the fiber structure of the thermoplastic resin is TiO ₂ , Al ₂ O ₃ , MgO,
Since it is composed of fibers obtained by kneading and / or coating at least one room temperature far infrared radiation filler 1 to 40% by mass selected from SiO ₂ , 2MgO ₂ · 2Al ₂ O ₃ · 5SiO ₂ , The amount of heat transferred due to radiation to the passenger compartment air increases, and the cold heat storage layer can sufficiently store nighttime cool air.

According to the sixteenth aspect of the present invention, since the design layer is a raised type cloth, a non-raised type cloth, or a non-woven type cloth, the designability such as the appearance and the feel of the skin material is good. Can be made compatible with the required cold heat storage function without impairing the above.

According to the invention of claim 17, since the interior skin material of the present invention is used as an interior material for a vehicle, the interior cold material for the vehicle efficiently accumulates cold heat at night in the passenger compartment, and The surface temperature of interior materials and the air temperature in the vehicle during the daytime can be lowered without using power.

In the eighteenth aspect of the invention, since the cold heat storage material is in contact with the surface layer of the heat storage layer or the intermediate heat dissipation layer, the heat between the cold heat storage material and the surface layer of the heat storage layer or the intermediate heat dissipation layer is Movement can be facilitated.

In the invention of claim 19, since the interior material for a vehicle is used as the seat skin material for the whole or a part of the seat, the cold heat storage material stores cold air in the passenger compartment at night. During the daytime and when sitting, the occupant's body comes into contact with the cold heat storage material through the skin material of the present invention, and cold air can be felt. Further, since the seat has a large surface area, the effect of lowering the air temperature in the vehicle interior during the daytime by utilizing the cold heat stored at night is great.

According to a twentieth aspect of the invention, the interior material for a vehicle is a floor carpet, a skin material for a ceiling, a skin material for a door trim, a skin material for an instrument panel, a skin material for a rear parcel, a skin material for a pillar. As described above, since it is used on all or part of each part, nighttime cold air can be stored as cold heat, and the cold air can be used to lower the temperature of the vehicle interior air during the daytime.

[0031]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below in detail with reference to the drawings.

First, the first embodiment of the skin material according to the present invention will be described.

FIG. 1 is a sectional view showing an example of the skin material of the present invention. In FIG. 1, a skin material 11 having a structure in which a design layer 12, a backing layer 13, an intermediate heat dissipation layer 14, and a cold heat storage layer 15 are laminated in this order from the top, and the intermediate heat dissipation layer 14 has a high thermal conductivity at room temperature. Since it is made of a resin material in which an infrared radiation filling material is kneaded, the cold heat of the vehicle interior air radiatively cooled at night is efficiently stored in the cold heat storage layer 15 by the intermediate heat dissipation layer 14 having high thermal conductivity and room temperature far infrared radiation. You can do it. Here, high thermal conductivity has a disadvantage that the heat inside the seat is warmed up because the thermal conductivity of the conventional lami-urethane layer is small. It is not particularly limited as long as it is large, but for example, the thermal conductivity is 0.025 to
The range is 3000 W / m · K.

The layers will be described below in sequence.

As the cold heat storage layer 15, a known cold heat storage material such as a polymer hydrogel latent heat storage material having a phase transition point near 33 ° C. can be used.

The intermediate heat dissipation layer 14 is made of a resin material in which a room temperature far infrared radiation filler having high thermal conductivity is kneaded, and the room temperature far infrared radiation filler having high heat conductivity is a filler having high thermal conductivity. There is no particular limitation as long as it is present, but examples thereof include carbon black and carbon fiber. Here, the carbon black is not particularly limited as long as it is produced by burning or thermally decomposing a compound containing carbon in a state of insufficient oxygen, pine smoke, oil smoke, lamp black, channel black, Furnace black and acetylene black can be exemplified. Further, the carbon fiber is not particularly limited as long as it is a fibrous material made of carbon, but examples thereof include those obtained by a method of carbonizing a precursor organic fiber such as polyacrylonitrile or pitch by heat treatment. A resin material containing a high thermal conductivity room temperature far infrared radiation filler is a polyester, polypropylene, acrylic, or nylon, because the filler is uniformly dispersed to effectively exhibit high temperature conductivity room temperature far infrared radiation. , A thermoplastic resin such as polyethylene or vinyl chloride is preferable, and the thermoplastic resin is preferably kneaded with the room temperature far-infrared radiation filler having high thermal conductivity.

Further, it is preferable that the resin material of the intermediate heat dissipation layer 14 contains 1 to 50% by mass of the room temperature far infrared radiation filler having high thermal conductivity. When the content of the high temperature conductive room temperature far infrared radiation filler in the resin material of the intermediate heat dissipation layer 14 is less than 1% by mass, the cold heat storage material 15 is 33 ° C. during the day.
There is not enough time to maintain. In addition, the total amount when kneading the room temperature far-infrared radiation filler into the thermoplastic resin is required to ensure physical properties for maintaining processability such as sheet processing, and is 1 to 50% by mass with respect to the resin mass. , Preferably 3 to 20% by mass.

The backing layer 13 may be made of a conventionally known material, but the backing layer 13 is preferably a resin material containing 10 to 50% by mass of a room temperature far infrared radiation filler. This is for the following reason. Heat transfer from the backing layer 13 to the design layer 12 and the design layer 12
The heat transfer from the air to the passenger compartment air by heat radiation,
Since the backing layer 13 is made of a resin material containing a high thermal conductivity room temperature far infrared radiation filler, the backing layer 1
Room Temperature Far Infrared Radiant Filler 10 Contained in Resin Material 3
When the amount is less than mass%, the amount of heat transfer due to radiation is small, and the cold heat storage layer 15 cannot store sufficient nighttime cold air. Therefore, the time during which the cold heat storage material maintains 33 ° C. in the daytime becomes short. In other words, 8 am
After 30 minutes, the cold heat storage material cannot keep 33 ° C. until 18:30 when the air temperature in the vehicle becomes 33 ° C. or less. It is preferable that the resin material of the backing layer 13 contains 10 mass% or more of the room temperature far infrared radiation filler. Also,
When the room temperature far infrared radiation filler contained in the resin material of the backing layer 13 exceeds 50% by mass, the design layer 12
The adhesiveness between the backing layer 13 and the backing layer 13 may decrease.

The resin material used for the backing layer 13 includes TiO ₂ , Al ₂ O as a room temperature far infrared radiation filler.
_{3, MgO, SiO 2, 2MgO} 2 · 2Al 2 O 3 · 5Si
It is preferable to knead the above-mentioned carbon black or carbon fiber as at least one type of inorganic powder or granular material selected from O ₂ and / or a room temperature far infrared radiation filler having high thermal conductivity.

Further, the far-infrared emissivity of the far-infrared emissive filling material used for the interior skin material of the present invention preferably has a far-infrared emissivity of 70% or more with respect to an ideal black body.
More preferably, 80% or more enables very efficient radiation. The far-infrared radiation amount increases as the temperature increases, but in the case of a textile product, it is preferable that the far-infrared radiation amount has a high radiation ability at a temperature near a low temperature, that is, 30 to 40 ° C., but is not particularly limited here.

Generally, such a room temperature far infrared radiation filler is often used as a heat retaining material by being kneaded with fibers of clothes such as gloves and socks. In this case, the purpose is to maintain the temperature on the heat source side, and a far-infrared radiation substance is used. In the present invention, by using these materials as a heat radiation material for heat radiation from the cold heat storage layer 15 to the low temperature passenger compartment air that has been radiatively cooled at night, it is possible to efficiently store cold heat of night cold air.

Further, it is preferable to use a thermoplastic resin as a resin material for the backing layer 13, for the following reason. The resin material of the backing layer 13 is kneaded with a far-infrared ray radiation filler at room temperature, but in order to effectively exhibit the far-infrared radiation radiation at room temperature, the resin material of the backing layer 13 is uniformly mixed with the filler material. It is necessary to disperse the As the thermoplastic resin, polyester, polypropylene, acrylic, nylon, polyethylene, vinyl chloride and the like can be exemplified.

As the design layer 12, a conventionally known material can be used, but from the viewpoint of good thermal conductivity,
Inorganic powder, TiO, as a far-infrared radiation filler at room temperature
_{2, Al 2 O 3, MgO} , SiO 2, 2MgO 2 · 2Al 2 O
It is preferably a resin material containing at least one selected from among ₃ · 5SiO _2.

In the skin material of the present invention, it is preferable that the resin material used in the design layer 12 has a fiber structure of a thermoplastic resin, for the following reason. The design layer 12 is required to have good appearance and touch, but when the design layer 12 is composed of a fiber structure, it is preferable to use a thermoplastic resin having excellent flexibility in order to realize good texture. Also,
When the room temperature far infrared radiation filler is kneaded with the fibers of the fiber structure of the design layer 12, it is necessary to uniformly distribute the filler, so that the thermoplastic resin is used as the material of the fibers forming the fiber structure of the design layer 12. It is preferable to use a resin. Preferred thermoplastic resins include polyester, polypropylene, acrylic, nylon, polyethylene, vinyl chloride and the like.

The resin material constituting the design layer 12 is
Room temperature far infrared radiation filler such as TiO ₂ 1 to 40% by mass
The fiber structure is preferably composed of thermoplastic fibers kneaded and / or coated with, but for the following reason. When the room temperature far-infrared filler is not contained, the amount of heat transferred from the design layer 12 to the vehicle interior air is reduced, and the cold heat storage layer 15 cannot store sufficient nighttime cold air. Moreover, the time for which the cold heat storage material keeps 33 ° C. becomes shorter. That is, the cold heat storage material cannot keep 33 ° C. from 8:30 am when the vehicle interior air temperature becomes 33 ° C. or higher until 18:30 when the vehicle interior air temperature becomes 33 ° C. or lower. Further, when the room temperature far infrared ray filler is contained in an amount of more than 40% by mass, the texture of the fiber structure of the design layer 12 becomes hard to touch, and the commercial property is deteriorated. For the above reasons,
The amount of the room temperature far infrared radiation filler such as TiO ₂ to be kneaded or coated on the fiber structure of the thermoplastic resin of the design layer 12 is preferably 1 to 40% by mass.

The type of the fibrous structure used for the design layer 12 is a raised type cloth such as moquette or tricot,
Non-raised fabrics such as plain weave and knitted fabrics, and non-woven fabrics such as artificial leather using ultrafine fibers are preferable, but the reason is as follows. The design layer 12 is required to have a good appearance and a good feel, and particularly, in the case of a skin material for a vehicle seat, a raised fabric such as a moquette or a tricot, a non-raised knit fabric such as a jersey, an artificial leather made of an ultrafine fiber, or the like. Nonwoven fabrics have been widely used in the past, and it is important from the viewpoint of commerciality to have both a cold heat storage function and a design property. In order to achieve this, the present invention succeeded in providing a required cold heat storage function without impairing the designability of the skin material 11 which has been widely used conventionally.

As the thickness of each layer, a conventionally known thickness can be appropriately adopted, and each layer can be molded by a known method using an adhesive or the like.

FIG. 2 is a sectional view showing another example of the skin material of the present invention to which the surface layer of the heat storage layer is added. Intermediate heat dissipation layer 24
The heat storage layer surface layer 26 is provided between the cold heat storage layer 25 and the cold heat storage layer 25. Here, the heat storage layer surface layer 26 is made of a resin material, and in the resin material used for the heat storage layer surface layer 26, TiO ₂ , Al ₂ O ₃ , MgO of inorganic powder or granular material is used as a room temperature far infrared radiation filler. , SiO ₂ , 2MgO ₂
Carbon black or carbon fiber 5 as at least one selected from 2Al ₂ O ₃ .5SiO ₂ and / or a room temperature far infrared radiation filler having high thermal conductivity
It is preferable to knead the mixture in an amount of 70% by mass. This is for the following reason. When the filler contained in the resin material of the heat storage layer surface layer 26 is less than 5% by mass, the amount of heat transferred by radiation is small, and the cold heat storage layer 25 cannot store sufficient nighttime cold air. The time during which the cold heat storage material keeps 33 ° C in the daytime becomes shorter. That is, the cold heat storage material cannot keep 33 ° C. from 8:30 am when the vehicle interior air temperature becomes 33 ° C. or higher until 18:30 when the vehicle interior air temperature becomes 33 ° C. or lower. The filler contained in the resin material of the heat storage layer surface layer 25 is preferably 5% by mass or more. In addition, the heat storage layer surface layer 26
When the content of the filler contained in the resin material exceeds 70% by mass, the adhesion between the intermediate heat dissipation layer 24 and the heat storage layer surface layer 26 becomes poor, and defects such as peeling may occur when the vehicle is used for a long period of time. It is useful and practically useless.

The surface layer 26 of the heat storage layer can be heated as a resin material.
It is preferable to use a plastic resin because of the following reasons.
According to The resin material of the backing layer 23 is made of an inorganic powder, T
iO ₂, Al₂O₃, MgO, SiO₂2MgO₂・ 2A
l₂O₃・ 5 SiO₂At least one selected from
And / or a mixture of high thermal conductivity room temperature far infrared radiation filler
Kneading, but effectively the room temperature far infrared radiation of the filler
In order to develop the resin material of the backing layer 23
Because it is necessary to uniformly disperse the filler in
It Incidentally, as the thermoplastic resin, polyester, poly
Propylene, acrylic, nylon, polyethylene, chloride
Examples include vinyl.

Other, design layer 22, backing layer 2
3. The same material as in FIG. 1 is used for the cold heat storage layer 25.

In the skin material of the present invention, the cold heat storage material is in contact with the heat storage layer surface layer 26 or the intermediate heat dissipation layer 14 so that the heat storage layer surface layer 26 and the intermediate heat dissipation layer having good heat transferability from the cold heat storage layer at night. Heat is dissipated to the air in the passenger compartment via the layer 24, and the cold air at night can be efficiently stored as cold heat to lower the surface temperature of the interior material during the daytime and the air temperature in the vehicle.

Next, the second embodiment of the skin material according to the present invention will be described.

FIG. 1 is a sectional view showing an example of the skin material of the present invention. In FIG. 1, a skin material 11 having a structure in which a design layer 12, a backing layer 13, an intermediate heat dissipation layer 14 and a cold heat storage layer 15 are laminated in this order from the top,
Reference numeral 4 denotes a fiber structure made of a non-woven fabric and / or a woven fabric containing fibers containing a room temperature far infrared radiation filler and / or a high thermal conductivity room temperature far infrared radiation filler.

Room temperature far-red light contained in the fibers of the intermediate heat dissipation layer 14
As an external radiation filling material, a wide wave of 4 to 20 μm or more
It can radiate far infrared rays efficiently over a long range.
There is no particular limitation as long as it is
Group oxide ceramics, natural ores, natural carbides,
And activated water. Transition metal element acid
Fluoride-based ceramics include TiO₂, SiO₂,
ZrO₂, Al₂O₂, MgO, 2MgO₂・ 2Al₂O₃
・ 5 SiO₂, BaSO_Four, MnO₂, Fe₂O₃, Zr
SiO₂, CoO, CuO, CrO₃, TiO, Ti
N, ZrC, TiC, SnO₂Fine particles of metal oxides such as
And rare earth metals such as neodymium, lanthanum and yttrium
It contains a small amount of silica and
Potassium metal oxide, alkaline earth metal oxide, Group 8 metal
An oxide, a phosphorus compound, etc. may be contained. With natural ore
Then, there are mica, trimalin (tourmaline), aurastone, etc.
Are known. Above all, the fibers of the intermediate heat dissipation layer 14 are included.
As a room temperature far-infrared radiation filler, inorganic powder
Of TiO₂, Al₂O₃, MgO, SiO₂2MgO ₂
・ 2Al₂O₃・ 5 SiO₂At least selected from
Also, one kind is preferable.

Further, it is preferable that the intermediate heat dissipation layer 14 contains 5 to 100% of fibers containing a room temperature far infrared radiation filler and / or a high thermal conductivity room temperature far infrared radiation filler. However, when the mixing rate of the fiber containing the room temperature far infrared radiation filler and / or the high thermal conductivity room temperature far infrared radiation filler into the fiber structure of the intermediate heat dissipation layer 14 is less than 5%, The effect of addition is small, sufficient cold air cannot be stored in the cold heat storage layer 15, and when the interior skin material 11 of the present invention is used as a seat skin material,
Since it is not possible for the occupant to sufficiently feel the cold air on the back and the back of the thigh when sitting, the normal temperature far infrared radiation filler and / or the fiber containing the high thermal conductivity room temperature far infrared radiation filler to the fiber tissue is used. The mixing ratio is preferably 5 to 100%.

The fibers of the intermediate heat dissipation layer 14 preferably contain carbon black or carbon fibers as a room temperature far infrared radiation filler having high thermal conductivity. In particular,
It is preferable to contain 50% by mass. If the content of carbon black or carbon fiber, which is a room temperature far-infrared radiation filler having high thermal conductivity, in the intermediate heat dissipation layer 14, especially in the thermoplastic fiber, is less than 1%, the intermediate heat dissipation layer 14 is stored during cold storage at night. The heat dissipation performance is insufficient and the nighttime cold air cannot be stored sufficiently in the cold heat storage layer 15. When the interior skin material 11 of the present invention is used as a seat skin material, the fiber structure of the intermediate heat dissipation layer 14 is compressed by the seating pressure during seating of the occupant in the daytime, and the contact area between the fibers having high thermal conductivity is reduced. By increasing, the thermal conductivity of the intermediate heat dissipation layer 14 is increased, the transfer of cold heat from the cold heat storage layer 15 to the human body is promoted, and the occupant can feel the cool air on his back or thigh when seated. However, the content of carbon black or carbon fiber in the fiber of the intermediate heat dissipation layer 14 is 1%.
If it is less than this, this does not work well and the occupant cannot fully feel cold air on his back or thigh when sitting. Further, the amount of carbon black and / or carbon fiber when kneading the fiber is required to ensure physical properties for maintaining processability such as spinning, and is 1 to 50% by mass with respect to the mass of the fiber, preferably 3 to 15 mass% is kneaded. There are no particular restrictions when fixing to the fiber surface with a fixing agent, etc. 1 to 5 relative to the fiber mass in consideration of far-infrared radiation performance, washing durability in products, texture, etc.
0% by mass, preferably 3 to 30% by mass is fixed.

When the room temperature far infrared radiation filler contained in the fibers of the intermediate heat dissipation layer is contained and the content of the filler is less than 1.0%, the heat dissipation performance of the intermediate heat dissipation layer during heat storage at night. Is insufficient, and sufficient cold air at night cannot be stored in the cold heat storage layer. Furthermore, when the interior skin material of the present invention is used as a seat skin material, the seat pressure during the daytime occupant seating compresses the fiber structure of the intermediate heat dissipation layer, increasing the contact area between the heat conductive fibers. By
The thermal conductivity of the intermediate heat dissipation layer is increased, the transfer of cold heat from the cold heat storage layer to the human body is promoted, and the occupant can feel the cool air on the back and thighs while sitting,
When the content of the intermediate heat dissipation layer in the thermoplastic fiber in the room temperature far infrared radiation filler contained in the fiber of the intermediate heat dissipation layer, which is a material having better thermal conductivity than the thermoplastic fiber, is less than 1.0% , The filling material does not function sufficiently, and the occupant cannot fully feel the cold air on the back or thigh when sitting. When the room temperature far-infrared radiation filler contained in the fibers of the intermediate heat dissipation layer is kneaded with the thermoplastic resin, it is necessary to secure physical properties for maintaining processability such as spinning. -30 mass%, preferably 3-15 mass% are kneaded. When fixing to the fiber surface using a fixing agent, etc.,
There is no particular restriction, and 1 to 50% by mass, preferably 3 to 30% by mass is fixed with respect to the fiber mass in consideration of far infrared radiation performance, washing with products, durability, texture and the like.

The areal density or basis weight of the fiber structure used for the intermediate heat dissipation layer 14 is preferably 4 to 500 g / m ² , and the layer thickness of the fiber structure is preferably 0.15 to 50 mm. When the surface density of the fibrous structure used for the intermediate heat dissipation layer 14 is less than 4 g / m ² , the heat storage time of the cold heat storage material in the daytime is as short as 2 hours or less. It is considered that this is because the intermediate heat dissipation layer 14 is thin and thus has a low heat insulating property. In addition, the intermediate heat dissipation layer 14
When the areal density of the fiber structure used for is less than 4 g / m ² , the layer thickness of the fiber structure used for the intermediate heat dissipation layer 14 is less than 0.15 mm. The areal density of the fibrous structure used for the intermediate heat dissipation layer 14 is 5
When it exceeds 00 g / m ² , the heat storage time of the cold heat storage material in the daytime is as short as 2 hours or less. This is because the surface density of the fiber structure used for the intermediate heat dissipation layer 14 is high, and the chances of contact between the fibers forming the intermediate heat dissipation layer 14 are increased, so that the heat insulation property of the intermediate heat dissipation layer 14 is reduced. it is conceivable that.
The layer thickness of the fibrous structure used for the intermediate heat dissipation layer 14 is 50 m.
If it exceeds m, the settling resistance of the fibrous structure layer of the intermediate heat dissipation layer 14 tends to decrease.

As for other layers and the like, the same materials as those of the first embodiment of the skin material of the present invention are used.

FIG. 2 is a sectional view showing another example of the skin material of the present invention in which the surface layer of the heat storage layer is added. Intermediate heat dissipation layer 24
The heat storage layer surface layer 26 is provided between the cold heat storage layer 25 and the cold heat storage layer 25. Here, the intermediate heat dissipation layer 24 is the same as the normal-temperature far-infrared radiation filler and / or the same as the fibrous structure made of a non-woven fabric and / or woven fabric containing fibers containing the high-heat-conductivity normal-temperature far-infrared radiation filler, The other layers and the like are the same as those of the first aspect of the skin material of the present invention.

By using the above-mentioned structure for the skin material,
First, the cold heat of the vehicle interior air that has been radiatively cooled at night can be efficiently stored in the cold heat storage layer. Secondly, the intermediate heat dissipation layer is provided with a cushioning fibrous structure. It becomes possible to achieve both cold heat storage performance and cushioning properties at the time of sitting, and when the passenger is seated during the daytime, the thermal conductivity of the intermediate heat dissipation layer composed of the fibrous structure changes and increases It is possible to promote the transfer of cold heat from the heat storage layer to the human body. That is, the seating area of the occupant increases the area of contact between the highly heat-conductive fibers of the intermediate heat dissipation layer made of a fibrous structure, which increases the thermal conductivity of the intermediate heat dissipation layer and reduces the cold heat of the cold heat storage layer. Can be felt on the back and thighs.

By using the skin material of the present invention as a vehicle interior material, the following is possible.

Conventionally, the main components of the skin material for automobile interiors are a design layer, a backing layer, a cushion layer made of urethane foam, etc., and the appearance and
Performance has been improved and improved in order to improve design characteristics such as touch, durability, and cushioning. However, in this configuration, the interior of the interior part is warmed by the high-temperature interior air of the vehicle or direct sunlight, and the heat inside the warmed interior part is accumulated. There is a problem in that the temperature of the air inside the vehicle is significantly increased.

By replacing the conventional interior skin material with the skin material of the present invention and arranging the cold heat storage material on the back surface thereof, heat transfer from the cold heat storage layer is improved at night. Good heat storage layer Heat is radiated to the passenger compartment air through the surface layer and the intermediate heat dissipation layer to efficiently store cold heat at night, and at the same time, use the stored cold heat for the surface temperature of interior materials during the day and the air inside the vehicle. The temperature can be lowered.

The most effective part of the interior parts is the seat. FIG. 3 is an explanatory view showing an application example of the skin material of the present invention to a vehicle seat. That is, as shown in FIG. 3, by using the skin material of the present invention as the seat skin material and arranging the cold heat storage material on the back surface of the seat, the cold heat storage material stores cold air in the passenger compartment at night, and the cold heat storage material stores the cold air during the daytime. During sitting, the occupant's body comes into contact with the cold heat storage material through the skin material of the present invention, and cold air can be felt. FIG. 3 (A) shows a case where the skin material is used only in the portion of the seat surface that comes into contact with the human body, and is used in the seat main portion 32 and the seat back portion 33 of the seat 31. FIG. 3B shows a case where a skin material is used on the entire surface of the seat 31, and the seat main portion 32 and the seat back portion 3 are provided.
3, an example used for the side portion / gusset portion 34 and the headrest portion 35 is shown. Also, since the seat has a large surface area,
The effect of lowering the air temperature inside the vehicle during the day is also great.

FIG. 4 is an explanatory view showing the application position of the skin material of the present invention in a vehicle. As shown in FIG. 4, the seat 41
In addition to the above, as a skin material for the door trim 42, a skin material for the ceiling 43 and the pillars 44, a skin material for floors such as the carpet 45, a skin material for the rear parcel 46, and a skin material for the instrument panel 47, the present invention can be used. Even when the skin material is used, cold air at night is stored as cold heat, and the effect of lowering the temperature of the vehicle interior air during the daytime can be obtained.

The seat 4 is used as a skin material for vehicle interior.
1, floor carpet 45, instrument panel 4
7, the entire surface of the rear parcel 46 and the pillar 44, or a part thereof. According to the present invention, it is possible to lower the temperature of the sheet surface, which is the part where the human body comes into contact, to reduce the amount of heat transfer from the sheet to the human body, and further to cool the heat of the human body with the sheet, thereby expanding in the future. It is possible to significantly reduce the expected air-conditioning load of energy-saving automobiles.

In order to reduce the heat immediately after riding in a car parked under the scorching sun as quickly as possible, the air conditioner is operated at full power immediately after riding, but after the inside of the car becomes cool, the operating load of the air conditioner is immediately after riding. It is less than one third. That is, two-thirds of the operating capacity of the air conditioner is used only immediately after riding in a car parked under the scorching sun. Therefore, if the inside of the car is not hot when riding in a car parked under the scorching sun, the air conditioner capacity can be reduced to one third or less, and the air conditioner operating load can be reduced.
In addition, it is possible to improve fuel efficiency by reducing the weight of the air conditioner itself.

It is expected that the number of fuel-efficient gasoline engine vehicles, fuel-efficient diesel denzing vehicles, and electric vehicles such as fuel cells will increase rapidly in the future. However, these energy-saving vehicles use less power to drive, The ratio of air conditioner power to the total power is expected to increase. Reducing the power load for air conditioners is an essential technology for energy-saving vehicles.

As described above, the present invention solves the problems of the prior art. The interior skin material of the present invention significantly improves the cold heat storage performance of cold air at night and the transfer performance of cold heat to the human body when sitting in the daytime, as compared with the conventional structure. Furthermore, the present invention lowers the sheet surface temperature, which is the site where the human body contacts, to reduce the amount of heat transfer from the sheet to the human body, and further, it is possible to cool the heat of the human body with the sheet, thereby, This is an epoch-making technology that can significantly reduce the air-conditioning load of energy-saving automobiles, which is expected to grow in the future.

[0071]

EXAMPLES Examples of the present invention will be described in detail below together with comparative examples, but the present invention is not limited to the examples described here.

(Example 1) The intermediate heat dissipation layer was a PVC film in which 50% by mass of carbon fiber (pitch type) was kneaded as a room temperature far infrared radiation filler having high thermal conductivity, and the design layer was room temperature far infrared radiation. T as a radioactive filler
A moquette of a nap type fabric made of polyester (PET) fibers in which 1% by mass of iO ₂ is kneaded, and the backing layer has a thickness of 0% by kneading 50% by mass of carbon fibers as a high thermal conductivity room temperature far infrared radiation filler. 1m
This is an example in which a polymer hydrogel-based latent heat storage material having a phase transition point around 33 ° C. is used as the cold heat storage layer, which is a polyester (PET) resin layer of m.

A car in which the window glass is covered with a light-reflecting material so that direct sunlight does not enter when parked in the summer hot sun is prepared. After 8:30 am when the air temperature inside the vehicle is 33 ° C or higher, the cold heat storage material is used in the daytime. When I measured the time to maintain 33 ℃,
It was possible to maintain 33 ° C. for about 5 hours until 13:30. Also, the seat surface temperature when seated at 14:00, when the vehicle interior temperature becomes maximum, was 35 ° C. In addition, when the durability test of the present example was conducted, there was no change in appearance such as cracking and the result was OK, and there was no problem in practical use.

(Example 2) The structure is the same as that of Example 1 except that the filler content of the intermediate heat dissipation layer is 1.0% by mass.
Similarly, prepare a car that has been parked under the hot summer sun and whose window glass is covered with a light-reflecting material to prevent direct sunlight from entering, and after 8:30 am when the air temperature inside the vehicle is 33 ° C or higher, the cold heat storage material is When the time for maintaining the temperature was measured, it was possible to maintain the temperature at 33 ° C. for about 3 hours until 11:30. Also, the seat surface temperature when seated at 14:00 when the vehicle interior temperature becomes maximum was 37 ° C. In addition, when the durability test of the present example was conducted, there was no change in appearance such as cracking and the result was OK, and there was no problem in practical use.

(Example 3) The structure is the same as that of Example 1 except that the filler content of the intermediate heat dissipation layer is 0.5% by mass.
Similarly, prepare a car that has been parked under the hot summer sun and whose window glass is covered with a light-reflecting material to prevent direct sunlight from entering, and after 8:30 am when the air temperature inside the vehicle is 33 ° C or higher, the cold heat storage material is When the time to maintain the temperature was measured, it was 9:00
It was possible to maintain 33 ° C. for only about 30 minutes until 0 minutes. Moreover, the seat surface temperature at the time of sitting at 14:00 when the vehicle interior temperature becomes the maximum was 40 ° C. when measured. In addition, when the durability test of the present example was conducted, there was no change in appearance such as cracking and the result was OK, and there was no problem in practical use.

(Example 4) The filling material content of the intermediate heat dissipation layer was 6
The configuration is the same as in Example 1 except that the content is 0% by mass. Similarly, prepare a car that is parked in the hot summer sun and has window glass coated with a light-reflecting material to prevent direct sunlight from entering.
After 8:30 am when the temperature was 3 ° C or higher, the time the cold heat storage material maintained at 33 ° C during the day was measured, and it was 13:30.
It was possible to maintain 33 ° C. for up to 5 minutes for about 5 hours. Also, the seat surface temperature when seated at 14:00, when the vehicle interior temperature becomes maximum, was 35 ° C. But,
In the durability test of this example, deterioration of appearance quality was observed.

(Embodiment 5) The intermediate heat dissipation layer is made of carbon fiber 2 as a room temperature far infrared radiation filler having high thermal conductivity.
350 g / m of basis weight containing 50% of polyester (PET) fiber having a thickness of 15 denier coated with 0% by mass
² is a non-woven fabric of polyester (PET) fiber having a layer thickness of 10 mm, and the design layer is a brushed fabric moquette made of polyester (PET) fiber kneaded with 1% by mass of TiO ₂ as a room temperature far infrared radiation filler. The backing layer has a thickness of 0, 1 obtained by kneading 50% by mass of carbon fibers as a room temperature far infrared radiation filler having high thermal conductivity.
It is a polyester (PET) resin layer having a thickness of 0 mm, and the heat storage layer has a surface layer in which 50% by mass of carbon fiber is kneaded as a room temperature far-infrared radiation filler having high thermal conductivity and a thickness of 0 mm.
This is an example in which a polymer hydrogel-based latent heat storage material having a phase transition point near 33 ° C. is used as the cold heat storage layer, which is a polyester (PET) resin layer.

A car in which the window glass is covered with a light-reflecting material so that direct sunlight does not enter when parked under the hot summer sun is prepared. After 8:30 am when the air temperature inside the vehicle is 33 ° C. or higher, the cold heat storage material is used in the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. Further, the settling resistance of this example was 8%, which was not a practical problem.

(Example 6) The structure is the same as that of Example 5 except that the mixing ratio of the filler-containing fiber in the intermediate heat dissipation layer is 5% by coating the fiber surface.

A car with window glass coated with a light-reflecting material to prevent direct sunlight from being parked in the summer hot weather was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was about 5 hours until 13:30. Also, the seat surface temperature when seated at 14:00, when the vehicle interior temperature becomes maximum, was 35 ° C. Further, the settling resistance of this example was 8%, and there was no problem in practical use.

(Embodiment 7) The construction is the same as that of Embodiment 5 except that the mixing ratio of the filler-containing fiber in the intermediate heat dissipation layer is 3%.

A car with window glass covered with a light-reflecting material to prevent direct sunlight from being parked in the summer hot weather was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
Since it was only about 2 hours until 11:00, it is considered that the mixing ratio of the filler-containing fiber in the intermediate heat dissipation layer is preferably 5% or more, considering the experimental results of Example 5 together. Moreover, the seat surface temperature at the time of sitting at 14:00 when the vehicle interior temperature becomes the maximum was 40 ° C. when measured. Further, when the sagging resistance of this example was measured, it was 8%, and there was no problem.

(Embodiment 8) The construction is the same as that of Embodiment 5 except that the mixing ratio of the filler-containing fiber in the intermediate heat dissipation layer is 20%.

A car with window glass coated with a light-reflecting material to prevent direct sunlight from being parked in the summer hot weather was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was about 7 hours until 15:30. Also, the seat surface temperature when seated at 14:00 when the temperature inside the vehicle became maximum was 33 ° C. Further, the settling resistance of this example was 8%, which was not a practical problem.

(Embodiment 9) The construction is the same as that of Embodiment 5 except that the mixing ratio of the filler-containing fibers in the intermediate heat dissipation layer is 100%.

A car with window glass covered with a light-reflecting material to prevent direct sunlight from being parked in the summer hot weather was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used during the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. Further, the sagging resistance of this example was measured and found to be 15%, and it is judged that there is no practical problem.

Example 10 A polyester (PE) in which an intermediate heat dissipation layer was coated with 0.5% by mass of carbon fiber as a high thermal conductivity room temperature far infrared radiation filler.
T) The structure is the same as that of Example 9 except that it is made of fibers.

A car with window glass coated with a light-reflecting material to prevent direct sunlight from being parked in the summer hot weather was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. However, when the seat surface temperature at the time of sitting at 14:00, when the temperature inside the vehicle was the maximum, was measured, it was 36 ° C. This is because the carbon fiber is coated only as 0.5% by mass as the room temperature far infrared radiation filler having high thermal conductivity on the polyester fiber of the intermediate heat dissipation layer, and therefore the fiber structure of the intermediate heat dissipation layer is formed by the pressure at the time of sitting. This is due to the low thermal conductivity when compressed. Further, the sagging resistance of this example was measured and found to be 12%, which means that there is no practical problem.

Example 11 Polyester (PE) in which the intermediate heat dissipation layer was coated with 1.0% by mass of carbon fiber as a high thermal conductivity room temperature far infrared radiation filler.
T) The structure is the same as that of Example 9 except that it is made of fibers.

A car with window glass coated with a light-reflecting material to prevent direct sunlight from being parked under the hot summer sun was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. Further, the sagging resistance of this example was measured and found to be 12%, which means that there is no practical problem.

Example 12 Polyester (PET) coated with 50% by mass of carbon fiber as an intermediate heat dissipation layer as a high thermal conductivity room temperature far infrared radiation filler.
The structure is the same as that of Example 9 except that the structure is made of fibers.

A car in which the window glass is covered with a light-reflecting material so that direct sunlight does not enter when parked in the summer hot weather, and after 8:30 am when the air temperature inside the vehicle is 33 ° C or higher, the cold heat storage material is used in the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. Further, when the settling resistance of this example was measured, it was considerably deteriorated to 25%,
Judge that there is no practical problem.

Example 13 Polyester (PET) coated with 60% by mass of carbon fiber as an intermediate heat dissipation layer as a high thermal conductivity room temperature far infrared radiation filler.
The structure is the same as that of Example 9 except that the structure is made of fibers.

A car with window glass coated with a light-reflecting material to prevent direct sunlight from being parked in the summer hot sun was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. However, when the settling resistance of this example was measured, it was 32%, which was slightly inferior.

(Example 14) The same structure as in Example 9 except that the intermediate heat dissipation layer was made of polyester (PET) fiber in which 0.5% by mass of carbon fiber was kneaded as a room temperature far infrared radiation filler having high thermal conductivity. Is.

A car with window glass covered with a light-reflecting material to prevent direct sunlight from being parked in the summer hot weather was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. However, when the seat surface temperature at the time of sitting at 14:00, when the temperature inside the vehicle was the maximum, was measured, it was 36 ° C. This is because only 0.5 mass% of carbon fiber is kneaded as the room temperature far-infrared radiation filler having high thermal conductivity to the polyester fiber of the intermediate heat dissipation layer, and therefore the fiber structure of the intermediate heat dissipation layer is formed by the pressure when seated. This is due to the low thermal conductivity when compressed. Further, the settling resistance of this example was 8%, and it is judged that there is no problem in practical use.

(Example 15) The same constitution as in Example 14 except that the intermediate heat dissipation layer was made of polyester (PET) fiber in which 1.0% by mass of carbon fiber was kneaded as a room temperature far infrared radiation filler having high thermal conductivity. Is.

A car with window glass coated with a light-reflecting material to prevent direct sunlight from being parked in the summer hot sun was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. Further, the sagging resistance of this example was measured and found to be 12%, which means that there is no practical problem.

(Example 16) The same structure as in Example 14 except that the intermediate heat dissipation layer was made of polyester (PET) fiber in which 3.0% by mass of carbon fiber was kneaded as a high thermal conductivity room temperature far infrared radiation filler. Is.

A car with window glass covered with a light-reflecting material to prevent direct sunlight from being parked in the summer hot weather was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. Further, the sagging resistance of this example was measured and found to be 12%, which means that there is no practical problem.

(Example 17) The same structure as in Example 14 except that the intermediate heat dissipation layer was made of polyester (PET) fiber in which 20.0% by mass of carbon fiber was kneaded as a room temperature far infrared radiation filler having high thermal conductivity. Is.

A car with window glass coated with a light-reflecting material to prevent direct sunlight from being parked in the summer hot weather was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. Further, the sagging resistance of this example was measured and found to be 15%, and it is judged that there is no practical problem.

(Example 18) The same constitution as in Example 14 except that the intermediate heat dissipation layer was made of polyester (PET) fiber in which 30.0% by mass of carbon fiber was kneaded as a room temperature far infrared radiation filler having high thermal conductivity. Is.

[0104] A car in which the window glass is covered with a light-reflecting material to prevent direct sunlight from being parked in the summer hot sun is prepared. After 8:30 am when the air temperature inside the vehicle is 33 ° C or higher, the cold heat storage material is used in the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. Moreover, when the settling resistance of this example was measured, the result was 26%, which was slightly inferior.

(Example 19) The same construction as in Example 14 except that the intermediate heat dissipation layer was made of polyester (PET) fiber in which 40.0% by mass of carbon fiber was kneaded as a high temperature conductive far-infrared radiation filler. Is.

[0106] A car in which the window glass is covered with a light-reflecting material so as to prevent direct sunlight from entering when parked in the summer hot sun is prepared. After 8:30 am when the air temperature inside the vehicle is 33 ° C or higher, the cold heat storage material is used in the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. However, when the settling resistance of this example was measured, it was 33%, which was a little inferior result.

(Embodiment 20) The construction is the same as that of Embodiment 5 except that the basis weight of the fiber structure of the intermediate heat dissipation layer is 4 g / m ² and the layer thickness is 0.15 mm.

A car with window glass coated with a light-reflecting material to prevent direct sunlight from being parked in the summer hot sun was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was about 3.5 hours until 12:00. Also, the seat surface temperature when seated at 14:00 when the vehicle interior temperature becomes maximum was 37 ° C. Further, the settling resistance of this example was measured and found to be 5%.

(Example 21) The structure is the same as that of Example 5 except that the basis weight of the fiber structure of the intermediate heat dissipation layer is 2 g / m ² and the layer thickness is 0.15 mm.

A car with window glass coated with a light-reflecting material to prevent direct sunlight from being parked in the summer hot weather was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was only about 2 hours until 11:00. Moreover, the seat surface temperature at the time of sitting at 14:00 when the vehicle interior temperature becomes the maximum was 40 ° C. when measured. Taken together with the results of Example 20, it is preferable that the basis weight of the fibrous tissue of the intermediate radiating layer is 4g / m ² or more, since the basis weight is 4g / m ² or less in So圧0.15mm or less, the layer Thickness is 0.1
It is preferably 5 mm or more. Further, the settling resistance of this example was measured and found to be 5%.

(Example 22) The structure is the same as in Example 5 except that the basis weight of the fiber structure of the intermediate heat dissipation layer is 500 g / m ² .

A car with window glass coated with a light-reflecting material to prevent direct sunlight from being parked in the summer hot weather was prepared, and after 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was about 7 hours until 15:30. Also, the seat surface temperature when seated at 14:00 when the temperature inside the vehicle became maximum was 33 ° C. Further, the settling resistance of this example was 8%, which was not a practical problem.

(Example 23) The structure is the same as that of Example 5 except that the basis weight of the fiber structure of the intermediate heat dissipation layer is 700 g / m ² .

A car with window glass covered with a light-reflecting material to prevent direct sunlight from being parked in the summer hot weather was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was only about 2 hours until 11:00. Moreover, the seat surface temperature at the time of sitting at 14:00 when the vehicle interior temperature becomes the maximum was 40 ° C. when measured. When combined with the results of Example 22, the basis weight of the fiber structure of the intermediate heat dissipation layer is 500 g / m 2.
It is preferably ² or less. Further, the settling resistance of this example was measured and found to be 5%.

(Example 24) The structure is the same as that of Example 5 except that the layer thickness of the fiber structure of the intermediate heat dissipation layer is 50 mm.

A car with window glass coated with a light-reflecting material to prevent direct sunlight from being parked in the summer hot sun was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. In addition, when the sagging resistance of this example was measured, it was 25%, which was a little inferior result.

(Example 25) The same structure as in Example 5 except that the layer thickness of the fiber structure of the intermediate heat dissipation layer was 70 mm.

A car with window glass covered with a light-reflecting material to prevent direct sunlight from being parked in the summer hot sun was prepared, and after 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. In addition, the sagging resistance of this example was measured and found to be 35%, which was slightly inferior.

(Example 26) The structure is the same as that of Example 5 except that the content of the filler in the backing layer is 10% by mass.

A car with window glass covered with a light-reflecting material to prevent direct sunlight from being parked under the hot summer sun was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used during the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. Further, the settling resistance of this example was measured and found to be 8%.

(Example 27) The structure is the same as that of Example 5 except that the filler content of the backing layer is 5% by mass.

A car with window glass coated with a light-reflecting material to prevent direct sunlight from being parked in the summer hot weather was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was about 7 hours until 15:30. This maintenance time is
Since it was 10 hours or more in Example 26, it is judged that the filler content of the backing layer is preferably 10% by mass or more. Also, the seat surface temperature when seated at 14:00 when the temperature inside the vehicle became maximum was 33 ° C. Further, the settling resistance of this example was measured and found to be 8%.

(Example 28) The structure is the same as that of Example 5 except that the filler content of the backing layer is 70% by mass.

A car with window glass covered with a light-reflecting material to prevent direct sunlight from being parked in the summer hot weather was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. Further, the settling resistance of this example was measured and found to be 8%. However, since the backing layer contained a large amount of the filler, the adhesion between the design layer and the backing layer was slightly lowered.

(Example 29) The structure is the same as that of Example 5 except that the material for the backing layer polyester (PET) resin is TiO ₂ .

A car with window glass covered with a light-reflecting material to prevent direct sunlight from being parked in the summer hot sun was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. Further, the settling resistance of this example was 8%, which was not a practical problem.

(Embodiment 30) The construction is the same as that of Embodiment 5 except that the material for the backing layer polyester (PET) resin is Al ₂ O ₃ .

[0128] A car with window glass covered with a light-reflecting material to prevent direct sunlight from being parked in the summer hot sun was prepared, and after 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. Further, the settling resistance of this example was 8%, which was not a practical problem.

(Example 31) The structure is the same as that of Example 5 except that the filler material for the polyester (PET) resin of the backing layer is MgO.

A car with window glass covered with a light-reflecting material to prevent direct sunlight from being parked in the summer scorching sun was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. Further, the settling resistance of this example was 8%, which was not a practical problem.

(Example 32) The structure is the same as that of Example 5 except that the filler material for the polyester (PET) resin of the backing layer is SiO ₂ .

A car with window glass coated with a light-reflecting material to prevent direct sunlight from being parked in the summer hot sun was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. Further, the settling resistance of this example was 8%, which was not a practical problem.

[0133] Fillers material to polyester (PET) resin (Example 33) the backing layer is 2MgO ₂ · 2Al ₂
The structure is the same as that of the fifth embodiment except that it is O ₃ .5SiO ₂ .

[0134] A car with window glass covered with a light-reflecting material to prevent direct sunlight from being parked in the summer hot weather was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used during the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. Further, the settling resistance of this example was 8%, which was not a practical problem.

(Example 34) The structure is the same as that of Example 5 except that the filler content in the surface layer of the heat storage layer is 10%.

[0136] A car with window glass covered with a light-reflecting material to prevent direct sunlight from being parked in the summer hot weather was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. Further, the settling resistance of this example was 8%, which was not a practical problem.

(Example 35) The structure is the same as that of Example 5 except that the filler content in the surface layer of the heat storage layer is 5% by mass.

[0138] A car in which the window glass is covered with a light-reflecting material so as to prevent direct sunlight from entering when parked in the summer hot sun is prepared. After 8:30 am when the air temperature inside the vehicle is 33 ° C or higher, the cold heat storage material is used in the daytime. When I measured the time to maintain 33 ℃,
It was about 7 hours until 15:30. This maintenance time is
Since it was 10 hours or more in Example 34, it is judged that the filler content in the backing layer is preferably 10% by mass or more. Also, the seat surface temperature when seated at 14:00 when the temperature inside the vehicle became maximum was 33 ° C. Further, the settling resistance of this example was measured and found to be 8%.

(Example 36) The structure is the same as that of Example 5 except that the filler content in the surface layer of the heat storage layer is 70% by mass.

[0140] A car in which the window glass is covered with a light-reflecting material to prevent direct sunlight from being parked in the summer hot sun is prepared. After 8:30 am when the air temperature inside the vehicle is 33 ° C or higher, the cold heat storage material is used in the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. Further, the settling resistance of this example was measured and found to be 8%. However, since the content of the filler in the surface layer of the heat storage layer was high, the adhesion between the intermediate heat dissipation layer and the surface layer of the heat storage layer was slightly lowered.

(Example 37) The structure is the same as that of Example 5 except that the filling material for the surface layer of the heat storage layer is TiO ₂ .

A car with window glass coated with a light-reflecting material to prevent direct sunlight from being parked in the summer hot weather was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was about 8.5 hours until 17:00. Also, the seat surface temperature when seated at 14:00 when the temperature inside the vehicle became maximum was 33 ° C. Further, the settling resistance of this example was measured and found to be 8%.

(Example 38) Polyester (P
(ET) The composition is the same as that of Example 5 except that the filler contained in the fiber is Al ₂ O ₃ .

A car with window glass covered with a light-reflecting material to prevent direct sunlight from being parked in the summer hot weather was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. Further, the settling resistance of this example was measured and found to be 8%.

(Example 39) Polyester (P
ET) The composition is the same as in Example 5 except that the material of the filler contained in the fiber is MgO.

A car with window glass covered with a light-reflecting material to prevent direct sunlight from being parked in the summer scorching sun was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. Further, the settling resistance of this example was measured and found to be 8%.

Example 40 Polyester (P
ET) The composition is the same as in Example 5 except that the material of the filler contained in the fiber is SiO ₂ .

A car with window glass coated with a light-reflecting material to prevent direct sunlight from being parked in the summer hot sun was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. Further, the settling resistance of this example was measured and found to be 8%.

(Example 41) Polyester (P
ET) material of the filler to be contained in the fiber 2MgO ₂ · 2
The structure is the same as that of Example 5 except that it is Al ₂ O ₃ .5SiO ₂ .

[0150] A car in which the window glass is covered with a light-reflecting material so that direct sunlight does not enter when parked under the hot summer sun is prepared, and after 8:30 am when the air temperature inside the vehicle is 33 ° C or higher, the cold heat storage material is used during the day When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. Further, the settling resistance of this example was measured and found to be 8%.

(Example 42) Polyester (P
The composition is the same as in Example 5 except that the (ET) fiber does not contain a room temperature far-infrared radiation filler.

A car with window glass coated with a light-reflecting material to prevent direct sunlight from being parked in the summer hot weather was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was about 8.5 hours until 17:00. Also, the seat surface temperature when seated at 14:00 when the temperature inside the vehicle became maximum was 33 ° C. Further, the settling resistance of this example was measured and found to be 8%.

(Example 43) Polyester (P
ET) fiber and TiO ₂ as a far-infrared radiation filler at room temperature
Example 5 except that 1% by weight is coated.
It has the same structure as.

[0154] A car with window glass covered with a light-reflecting material to prevent direct sunlight from being parked in the summer hot sun was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. Further, the settling resistance of this example was measured and found to be 8%.

(Example 44) Polyester (P
ET) fiber and TiO ₂ as a far-infrared radiation filler at room temperature
Is the same as that of Example 5 except that is coated with 40% by mass.

A car with window glass coated with a light-reflecting material to prevent direct sunlight from being parked in the summer hot weather was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. Further, the settling resistance of this example was measured and found to be 8%.

(Example 45) Polyester (P
ET) fiber and TiO ₂ as a far-infrared radiation filler at room temperature
Has the same configuration as in Example 5 except that 60% by weight is coated.

A car with window glass covered with a light-reflecting material to prevent direct sunlight from being parked under the hot summer sun was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was set to 10 hours or more because the temperature of 33 ° C was maintained even at 18:30 when the air temperature inside the vehicle became 33 ° C or less. Also,
The seat surface temperature when seated at 14:00 when the maximum temperature inside the vehicle was measured was 33 ° C. Further, the settling resistance of this example was measured and found to be 8%. However, the feel was hard because the amount of the filler coated on the polyester fiber of the design layer was large.

(Example 46) A PVC sheet having a thickness of 0.5 mm was used as a design layer, and TiO was used as a room temperature far infrared radiation filler.
_The composition is the same as that of Example 5 except that ₂ % was kneaded by 10% by mass.

[0160] A car with window glass covered with a light-reflecting material to prevent direct sunlight from being parked in the summer hot sun was prepared. After 8:30 am when the air temperature inside the vehicle was 33 ° C or higher, the cold heat storage material was used in the daytime. When I measured the time to maintain 33 ℃,
It was about 7 hours until 15:30. This maintenance time is
Since it was 10 hours or more in Example 34, it is judged that the filler content of the backing layer is preferably 10% by mass or more. Also, the seat surface temperature when seated at 14:00 when the temperature inside the vehicle became maximum was 33 ° C. Further, the settling resistance of this example was measured and found to be 8%.

Comparative Example 1 A moquette which is a conventional sheet fabric is used as a comparative example. That is, the design layer has a basis weight of 400
It is a moquette which is a raised type fabric of g / m ² , and has a backing layer having a thickness of 0.1 mm as a backing layer of the moquette, and a basis weight of 350 g /
There is a layer of urethane foam having a thickness of m ² and a thickness of 10 mm, that is, a laminar urethane layer, there is a back base cloth having a thickness of 0.1 mm, which is a polyester fiber structure, under the ramie urethane layer, and a sheet is under the back base cloth. In the structure, there is a soft urethane foam as a base material.

Comparative Example 2 The same structure as Comparative Example 1 except that a polymer hydrogel latent heat storage material having a phase transition point near 33 ° C. was used as a cold heat storage layer under the backing cloth. Is.

Regarding the "durability of the resin thin film of the intermediate heat dissipation layer", the width is 3 cm based on the B method (Scott type method) described in 8.17.2 of JIS L1096 "1999; General textile test method". × The “rubbing durability” at 25 ° C. and 50% RH was measured for a test piece having a length of 12 cm.

Regarding the "settling resistance of the fiber structure layer of the intermediate heat dissipation layer", a width of 100 was determined based on JIS K6401 "1997; soft urethane foam for cushion".
7 for a test piece of mm x length 100 mm x height 50 mm
The compressive residual strain rate at 0 ° C. was measured.

The above evaluation results are shown in Tables 1 to 4. In Tables 1 to 4, carbon fiber is abbreviated as CF.

[0166]

[Table 1]

[0167]

[Table 2]

[0168]

[Table 3]

[0169]

[Table 4]

As is clear from the results of Tables 1 to 4, it was confirmed that the interior covering material of the example was superior to the interior covering material of the comparative example.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing one embodiment of a skin material of the present invention.

FIG. 2 is a cross-sectional view showing another embodiment of the skin material of the present invention.

FIG. 3 is an explanatory view showing an application example of the skin material of the present invention to a vehicle seat.

FIG. 4 is an explanatory diagram showing an example of application of the skin material of the present invention to a vehicle interior product.

FIG. 5 is a cross-sectional view showing a form of a conventional skin material.

[Explanation of symbols]

11, 21 ... Skin material 12, 22 ... Design layer 13, 23 ... Backing layer 14, 24 ... Intermediate heat dissipation layer 15, 25 ... Cold heat storage layer 26 ... Surface layer of heat storage layer 31 ... seat

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) B60R 7/08 B60R 7/08 R 4J002 13/02 13/02 A 4L031 B 4L048 C C08K 3/04 C08K 3 / 04 3/22 3/22 C08L 101/00 C08L 101/00 D03D 1/00 D03D 1/00 Z 15/00 15/00 E 105 105 D06M 11/45 D06N 7/00 11/46 D06M 11/12 11 / 79 D06N 7/00 (72) Inventor Hiroaki Miura 2 Takara-cho, Kanagawa-ku, Yokohama, Kanagawa F-term in Nissan Motor Co., Ltd. (reference) 3B088 FB02 3D022 CA29 CB02 CC14 CD29 3D023 BA01 BB02 BB08 BB09 BD01 BD03 BD08 BD14 BE04 4F055 AA21 BA12 BA14 BA16 CA18 EA05 FA24 FA40 GA32 GA34 4F100 AA20A AA20B AA20D AA37B AA37C AK01B AK01D AK15 AK42 AR00C AR00D BA04 BA07 BA10A BA10D CA23C CA30B DG01A DG01B DG01C DG11A DG12C DG15A DG15C DG16A GB33 HB00A JA20C JB16A JB16B JB16D JG01A JG01C JG01D JJ01A JJ01C JJ01D JJ06C JJ10D 4J002 BB031 BB121 BD031 BG001 CF001 CL001 DA037 DE076 DE136 DE146 DJ016 FA047 FD016 FD017 GN00 4L031 AA18 AA20 AB32 AB33 AB34 BA02 BA09 4L048 AA20 AA24 AA44 AA46 AA56 BA23 CA10 DA25

Claims (20)

[Claims] 1. A skin material having a structure in which a design layer, a backing layer, and an intermediate heat dissipation layer are laminated in order from the top, and the intermediate heat dissipation layer is a resin material containing a room temperature far infrared radiation filler having high thermal conductivity. A skin material characterized by being composed of. 2. The skin material according to claim 1, wherein the intermediate heat dissipation layer contains 1 to 50% by mass of a room temperature far infrared radiation filler having high thermal conductivity. 3. A skin material having a structure in which a design layer, a backing layer, and an intermediate heat dissipation layer are laminated in this order from the top, and the intermediate heat dissipation layer is a room temperature far infrared radiation filler and / or a high heat conductive room temperature heat dissipation material. A skin material comprising a non-woven fabric and / or a woven fabric containing fibers containing an infrared radiation filling material. 4. The intermediate heat dissipation layer contains 5 to 100% of fibers containing a room temperature far infrared radiation filler and / or a room temperature far infrared radiation filler having high thermal conductivity. Skin material. 5. The skin material according to claim 3, which contains carbon black or carbon fiber as the room temperature far-infrared radiation filler having high thermal conductivity. 6. The skin material according to claim 5, wherein the carbon black or carbon fiber is contained in the fiber in an amount of 1 to 50 mass%. 7. The areal density of the fibrous structure used for the intermediate heat dissipation layer is from 4 to 500 g / m ^2.
The skin material according to any one of 6 above. 8. The layer thickness of the fibrous structure used for the intermediate heat dissipation layer is 0.15 to 50 mm.
7. The skin material according to any one of 7. 9. The skin material according to claim 1, wherein the backing layer is a resin material containing 10 to 50 mass% of room temperature far infrared radiation filler. 10. The resin material used for the backing layer comprises an inorganic powder or granular material as a room temperature far infrared radiation filler.
_{TiO 2, Al 2 O 3,} MgO, SiO 2, 2MgO 2 · 2
At least 1 selected from Al ₂ O ₃ .5SiO ₂
The skin material according to claim 9, wherein carbon black or carbon fiber is kneaded as the seed and / or the high temperature conductive far-infrared radiation filler. 11. A heat storage layer surface layer is provided under the intermediate heat dissipation layer, and the heat storage layer surface layer is made of a resin material. In the resin material used for the heat storage layer surface layer, TiO ₂ , as a room temperature far infrared radiation filler, Al ₂ O ₃ , MgO, SiO ₂ , 2MgO ₂
・ 5 to 70% by mass of carbon black or carbon fiber is kneaded as at least one kind of inorganic powder or granular material selected from 2Al ₂ O ₃ .5SiO ₂ and / or room temperature far infrared radiation filler having high thermal conductivity. The skin material according to any one of claims 1 to 10, characterized in that. 12. The skin material according to claim 1, wherein a thermoplastic resin is used for the surface layers of the backing layer and the heat storage layer. 13. A TiO ₂ , Al ₂ O ₃ , and Mg powder of inorganic powder, wherein the design layer is used as a far-infrared radiation filler at room temperature.
_{O, SiO 2, 2MgO 2 ·} 2Al 2 O 3 · 5SiO surface material according to any one of claims 1 to 12, characterized in that a resin material containing at least one selected from among ₂ . 14. The skin material according to claim 13, wherein the design layer has a fiber structure of a thermoplastic resin. 15. The thermoplastic resin fibrous structure is Ti
_{O 2, Al 2 O 3,} MgO, SiO 2, 2MgO 2 · 2Al 2
15. The fiber according to claim 14, wherein the fiber is obtained by kneading and / or coating 1 to 40% by mass of a room temperature far infrared radiation filler selected from O ₃ .5SiO ₂ . Skin material. 16. The skin material according to claim 14 or 15, wherein the design layer is a raised fabric, a non-raised fabric, or a non-woven fabric. 17. An interior material for a vehicle, which uses the skin material according to any one of claims 1 to 16. 18. The interior material for a vehicle according to claim 1, wherein the cold heat storage material is in contact with a heat storage layer surface layer or an intermediate heat dissipation layer. 19. A vehicle interior material, wherein the vehicle interior material according to claim 17 or 18 is used as a seat skin material on the entire surface or a part of a seat. 20. The vehicle interior material according to claim 17 or 18 as a floor carpet, a ceiling skin material, a door trim skin material, an instrument panel skin material, a rear parcel skin material, a pillar skin material, An interior material for a vehicle, which is used on all or part of each part.