JP2021037871A - Vehicular interior panel - Google Patents

Abstract

To provide a vehicular interior panel covering an airbag, which is excellent in the beauty of an appearance and can be easily manufactured.SOLUTION: A vehicular interior panel 1 has a base body 2 and a skin body 3 adhered to a surface of the base body 2 through an adhesive layer 4, and turns the base body 2 to an airbag 95 to cover the airbag 95. The base body 2 is provided with a cleavage groove 20. The skin body 3 is a singlet knit, and has a first region 31 positioned on the base body 2 side and a second region 32 positioned on the opposite side to the base body 2 across the first region 31. The first region 31 is denser than the second region 32.SELECTED DRAWING: Figure 4

Description

The present invention relates to an interior panel for a vehicle that covers an airbag.

Airbags mounted on a vehicle are generally arranged behind a vehicle interior panel, covered by the vehicle interior panel, and isolated from the vehicle interior. The vehicle interior panel that covers such an airbag, also called an airbag door, opens toward the vehicle interior when the airbag is deployed, and connects the back side of the vehicle interior panel with the vehicle interior. This type of vehicle interior panel has a groove-like portion, that is, a cleavage groove, for opening by an impact when the airbag is deployed. The cleavage groove is also called a tear line.

By the way, the interior panel for a vehicle is required to have a rigidity that is not damaged even if a occupant applies a slight load. Further, at least the surface of the vehicle interior panel is required to have a beautiful appearance to the extent that the design of the vehicle interior is not impaired.
For this reason, vehicle interior panels generally have a substrate and a skin covering the substrate (see, for example, Patent Document 1). Of these, the substrate is mainly involved in the rigidity of the vehicle interior panel, and the skin body is mainly involved in the appearance of the vehicle interior panel.

The vehicle interior panel introduced in Patent Document 1 has a base material, that is, a base material, and a skin material, that is, a skin body, which is attached to the surface of the base material. Of these, the epidermis body is composed of a base cloth layer, a skin layer attached to the surface of the base cloth layer, and a cushion layer attached to the back surface of the base cloth layer. In the embodiment of Patent Document 1, the base fabric layer and the cushion layer are made of knit.

In the vehicle interior panel introduced in Patent Document 1, a fissure groove is provided on the back surface of the substrate, and a fissure groove is also provided on the back surface of the cushion layer in the epidermis.
In such an interior panel for a vehicle, the cleavage groove of the base material and the cleavage groove of the cushion layer are arranged at substantially the same positions in the front and back directions of the interior panel for the vehicle, so that the base material is cleaved when the airbag is deployed. Both the groove and the cleavage groove of the cushion layer can be broken. However, when manufacturing this type of vehicle interior panel, it is necessary to precisely position the crack groove of the substrate and the crack groove of the cushion layer, which causes a problem that the manufacturing process becomes complicated.

Japanese Unexamined Patent Publication No. 2015-93555

By the way, due to the structure of the knit, if a break occurs at one place, the break easily propagates to the whole. In the vehicle interior panel of Patent Document 1, the inventor of the present invention does not need to provide a cleavage groove if the skin is made of a single knit, and the above-mentioned cleavage groove of the substrate and the cleavage groove of the cushion layer are used. I realized that I might not need to do any positioning.
That is, the epidermis body in Patent Document 1 has a multi-layer structure having three layers of a base cloth layer, a cushion layer and an epidermis layer, and an adhesive layer is interposed between the layers. Further, the strength of the epidermis body in Patent Document 1 is also enhanced by the adhesive layer. Therefore, in order to break the epidermis body in Patent Document 1 with high reliability when the airbag is deployed, it is not enough that the cushion layer is made of knit, and at least the cushion layer needs to be provided with a cleavage groove.

However, as described above, if there is only a single layer of knit, there is a possibility that the airbag will be sufficiently broken when the airbag is deployed even if there is no cleavage groove. The inventor actually made a prototype of an interior panel for a vehicle in which the base cloth layer and the skin layer were omitted and the skin body was formed only by a single knit layer.

However, in a vehicle interior panel in which a skin body is formed only by a single layer of knit, the adhesive for adhering the substrate and the skin body exudes to the surface of the skin body, and the vehicle interior panel There was a problem that the appearance was significantly deteriorated. As described above, it has been difficult to achieve both the beauty of the appearance and the ease of manufacturing with the conventional interior panel for a vehicle.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an interior panel for a vehicle that covers an airbag, which has an excellent appearance and can be easily manufactured.

The inventor of the present invention has completed the present invention by repeating diligent research in order to provide an interior panel for a vehicle having an excellent appearance and being easy to manufacture.
That is, the vehicle interior panel of the present invention that solves the above problems is
An interior panel for a vehicle having a substrate and a skin body adhered to the surface of the substrate via an adhesive layer, and covering the airbag with the substrate directed toward the airbag.
The substrate is provided with a cleavage groove.
The epidermis is
It is a single knit and
It has a first region located on the substrate side and a second region located on the opposite side of the substrate with the first region interposed therebetween.
The first region is a vehicle interior panel that is denser than the second region.

The vehicle interior panel of the present invention has an excellent appearance and can be easily manufactured.

It is explanatory drawing which illustrates the shape of the cleavage groove provided in the substrate in the vehicle interior panel of this invention. It is explanatory drawing which illustrates the shape of the cleavage groove provided in the substrate in the vehicle interior panel of this invention. It is explanatory drawing which illustrates the shape of the cleavage groove provided in the substrate in the vehicle interior panel of this invention. It is explanatory drawing which shows typically the cross section of the vehicle interior panel of Example 1. FIG. It is explanatory drawing which shows typically the substrate and the skin body in the vehicle interior panel of Example 1. FIG. It is explanatory drawing which shows typically the cross section of the skin body in the vehicle interior panel of Example 1. FIG. It is explanatory drawing which schematically explains the method of manufacturing the skin body in the vehicle interior panel of Example 1. FIG.

Hereinafter, the vehicle interior panel of the present invention will be specifically described.
Unless otherwise specified, the numerical range "x to y" described in the present specification includes the lower limit x and the upper limit y. Then, a numerical range can be constructed by arbitrarily combining these upper and lower limit values and the numerical values listed in the embodiment. Furthermore, numerical values arbitrarily selected from the numerical range can be set as upper and lower limit numerical values.

The vehicle interior panel of the present invention is an interior panel for covering an airbag mounted on a vehicle. Specifically, the vehicle interior panel of the present invention has a substrate and a skin body adhered to the surface of the substrate via an adhesive layer, and the substrate is directed toward the airbag to cover the airbag. .. Therefore, in the vehicle interior panel of the present invention, the epidermis is directed toward the vehicle interior while the substrate is directed toward the airbag.

A cleavage groove is provided in the substrate of the vehicle interior panel of the present invention. The cleavage groove is a portion that breaks when the airbag is deployed.
On the other hand, the skin body in the vehicle interior panel of the present invention is a single knit. As described above, due to the structural characteristics of the knit, if a fracture occurs at one location in the epidermis, the fracture tends to propagate to the entire epidermis. Therefore, the vehicle interior panel of the present invention can be broken with high reliability when the airbag is deployed.

In such a vehicle interior panel of the present invention, it is not necessary to provide a fissure groove in the skin body, and it is not necessary to precisely position the substrate and the skin body at the time of manufacturing the vehicle interior panel. Therefore, the vehicle interior panel of the present invention can be easily manufactured.

Further, the skin body in the vehicle interior panel of the present invention has a first region located on the substrate side and a second region located on the opposite side of the first region to the substrate. That is, in the epidermis body adhered to the substrate, the first region is adjacent to the adhesive layer, and the first region is interposed between the second region and the adhesive layer.
Here, since the first region of the skin body of the vehicle interior panel of the present invention is denser than the second region, it is possible to prevent the passage of the adhesive before curing, that is, the adhesive in a flowing state. Therefore, when the substrate and the epidermis are adhered to each other, it is difficult for the adhesive in a fluid state to reach the second region, which is sparser than the first region, and the adhesive exudes to the surface of the epidermis. It is suppressed.
Therefore, the vehicle interior panel of the present invention is not only easily manufactured, but also has an excellent appearance.
Further, since the portion of the skin body exposed to the vehicle interior is a second region sparser than the first region, the interior panel for a vehicle of the present invention is provided with a texture derived from the second region. .. As a result, the vehicle interior panel of the present invention is even more excellent in appearance.

Hereinafter, the vehicle interior panel of the present invention will be described for each component.

The substrate in the vehicle interior panel of the present invention needs to have a certain degree of rigidity in order to prevent the airbag from being unintentionally deployed. As the material of such a substrate, a general material used for an instrument panel of a vehicle may be selected. Specific examples thereof include resin materials such as acrylonitrile-butadiene-styrene copolymer synthetic resin (ABS resin), thermoplastic polyolefin (TPO), acrylonitrile-styrene copolymer synthetic resin (AS resin or SAN), and polypropylene (PP). Will be done. It is also preferable to use a fiber reinforced resin in which glass fiber or the like is blended with these resin materials. The thickness of the substrate may be appropriately set according to the rigidity, strength, etc. required for the substrate.

The substrate is provided with a cleavage groove. The shape of the cleavage groove is not particularly limited, and may be, for example, a WY type shown in FIG. 1, an H type shown in FIG. 2, a U type shown in FIG. 3, or the like. It should be noted that FIGS. 1 to 3 are explanatory views schematically showing an example of the cleavage groove 20 in the substrate 2.
The cleavage groove may be opened toward the epidermis or the airbag. When the cleavage groove opens toward the epidermis, the epidermis may be dented along the cleavage groove and unevenness may be formed on the surface of the epidermis depending on the thickness of the epidermis. Therefore, it is preferable that the cleavage groove opens toward the airbag.

The epidermis is a single knit and has two regions in the thickness direction, a dense region (first region) and a sparse region (second region). The term "single knit" as used herein means a knit that is continuously knitted in the thickness direction, and is characterized by having threads that are spread over the entire thickness direction.
Among the knits having the first region and the second region described above, a knit fabric in which a plurality of knit fabrics are bound with the same thread in the thickness direction corresponds to a "single knit", but the plurality of knit fabrics are adhered to each other. The so-called bonding knit that has been made does not fall under the category of "single knit". Specific examples of the "single knit" having the first region and the second region include a double Russell knitted fabric, a double tricot knitted fabric, a pile knitted fabric (also referred to as a loop knitted fabric) and the like.

These single knits may be used as the epidermis body as they are, or may be appropriately shaped by cutting or the like and used as the epidermis body.
For example, as the skin body, a double Russell knitted fabric cut in half in the thickness direction may be used, or a pile knitted fabric with a loop cut may be used. Although these are shaped single knits, they still fall under the category of single knits. By using these shaped single knits, it is possible to give an excellent appearance and feel to the epidermis.

The material of the epidermis, that is, the material of the knit yarn is not particularly limited, and natural fibers or synthetic fibers may be used. Examples of synthetic fibers include fibers such as polyethylene terephthalate (PET), acrylic, and polyester.

The epidermis needs to break with the substrate when the airbag is deployed. In terms of the structure of the interior panel for a vehicle of the present invention, it can be said that the skin body may be broken by an external force acting from the broken substrate, and it can be said that the condition is satisfied by being knit. The epidermis preferably breaks easily when the airbag is deployed, and preferably has a structure that is weak in the direction in which an external force from the substrate acts when the airbag is deployed.

When the airbag is deployed, a force mainly in the front direction acts on the cleavage groove provided in the substrate, and the cleavage groove is broken. With the breakage of the cleavage groove, the substrate opens in the direction intersecting the front and back directions, so that the front side and the back side of the substrate are connected to each other. Since the epidermis needs to be broken together with the substrate, it is preferable that the epidermis has a weak structure in the opening direction of the substrate.
In other words, in the skin body of the vehicle interior panel of the present invention, the tensile strength a in the opening direction of the substrate due to the breakage of the cleavage groove and the tensile strength b in the direction orthogonal to the opening direction of the substrate are The relationship a <b is preferable.
The relationship between a and b is preferably 1.2a <b, more preferably 1.5a <b, and particularly preferably 2.0a <b.

A known method may be used for measuring the tensile strength, and for example, the JIS L 1096 A method or the JIS L 1096 B method can be used.

The first region in the epidermis may be denser than the second region. The sparseness and density of the first and second regions can be expressed in known ways. For example, the sparse and dense can also be expressed in terms of density and porosity. When sparse and dense are expressed by porosity, the porosity may be the porosity per volume of the first region and the second region, or the porosity per cross-sectional area of the first region and the second region. You may. The cross-sectional area referred to here means the areas of the first region and the second region in the cross section obtained by cutting the epidermis body in the thickness direction, that is, the first region-second region direction, and the porosity thereof can be calculated by image analysis. .. When twisted yarn is used as the knit yarn, the voids in the porosity per cross-sectional area include voids existing inside the yarn.

For example, in terms of the porosity per cross-sectional area, the porosity of the second region is preferably 1.2 times or more, more preferably 1.5 times or more, and twice the porosity of the first region. The above is particularly preferable. The porosity of the first region is preferably 60 area% or less, more preferably 50 area% or less, and particularly preferably 30 area% or less. There is no particular lower limit to the porosity of the first region, but considering that the epidermis is knit, it is realistic that the porosity is 10 area% or more.

The epidermis may have regions other than the first region and the second region as long as it is a single knit. For example, a third region that is denser than the second region may be provided on the opposite side of the first region that sandwiches the second region.

The adhesive that adheres the substrate and the epidermis is not particularly limited, and may be appropriately and appropriately selected depending on the material of the substrate and the epidermis.
Adhesives preferably used for vehicle interior panels of the present invention include reactive adhesives such as epoxy resin adhesives, urethane resin adhesives, acrylic resin adhesives, vinyl resin adhesives, and styrene resin adhesives. Examples thereof include solvent-based adhesives such as adhesives, epoxy resin-based adhesives, and cyanoacrylate-based adhesives, synthetic rubber-based adhesives, silicone-based adhesives, and modified silicone-based adhesives.

Here, some adhesives deteriorate in durability and turn yellow. When the adhesive layer formed between the substrate and the epidermis turns yellow and the color is visible to the user through the epidermis, the interior panel for the vehicle has no substantial effect on the strength or the like. May be perceived by the user as having deteriorated.

On the other hand, if the adhesive layer is yellow from the beginning, it is difficult for the user to perceive the yellowing of the adhesive layer, and it is considered that the user will not mistakenly recognize that the interior panel for the vehicle has deteriorated. .. Therefore, the color of the adhesive layer is preferably yellow.
The adhesive layer may be yellow by using a yellow adhesive, or the adhesive layer may be yellow by adding a yellow pigment to an adhesive having a color other than yellow.

The term "yellow" as used herein does not mean only pure yellow, but is a concept including all so-called yellowish colors, and means colors belonging to GY, Y, and YR in the Munsell color system.

Specific examples of yellow are listed below.
For the Munsell color system 2.5YR, 5YR or 7.5YR, the saturation is preferably v9 to v5 in the case of lightness c2, and the saturation is v9 to v4 in the case of lightness c4 or lightness c6. Is preferable, and when the brightness is c8 or higher, the saturation does not matter.
For 10YR, the saturation is preferably v9 to v6 in the case of lightness c2, the saturation is preferably v9 to v5 in the case of lightness c4 or lightness c6, and the saturation is preferably v9 to v5 in the case of lightness c8 or higher. It doesn't matter.
For 2.5Y, the saturation is preferably v9 to v6 in the case of lightness c2, the saturation is preferably v9 to v4 in the case of lightness c4 or lightness c6, and the saturation is preferably v9 to v4 in the case of lightness c8 or higher. It doesn't matter the saturation.
For 5Y or 7.5Y, the saturation is preferably v9 to v7 in the case of lightness c2, the saturation is preferably v9 to v4 in the case of lightness c4 or lightness c6, and the saturation is preferably v9 to v4 in the case of lightness c8 or higher. Does not matter the saturation.
For 10Y, the saturation is preferably v9 to v6 in the case of lightness c2, the saturation is preferably v9 to v5 in the case of lightness c4 or lightness c6, and the saturation is preferably v9 to v5 in the case of lightness c8 or higher. It doesn't matter.
For 2.5 GY, the saturation is preferably v9 to v7 in the case of lightness c2, the saturation is preferably v9 to v6 in the case of lightness c4 or lightness c6, and the saturation is preferably v9 to v6 in the case of lightness c8 or higher. It doesn't matter the saturation.
For 5GY, the saturation is preferably v9 to v6 in the case of lightness c2, the saturation is preferably v9 to v6 in the case of lightness c4, and the saturation is v9 to v5 in the case of lightness c6. It is preferable to have it, and when the brightness is c8 or more, the saturation does not matter.
For 7.5 GY, the saturation is preferably v9 to v7 in the case of lightness c2, the saturation is preferably v9 to v6 in the case of lightness c4 or c6, and the saturation is preferably v9 to v6 in the case of lightness c8. It is preferably v9 to v5, and when the brightness is c10 or more, the saturation does not matter.
For 10GY, the saturation is preferably v9 to v7 in the case of lightness c2, the saturation is preferably v9 to v5 in the case of lightness c4, and the saturation is v9 to v6 in the case of lightness c6. In the case of lightness c8 or c10, the saturation is preferably v9 to v6, and in the case of lightness c12 or higher, the saturation does not matter.

Hereinafter, the vehicle interior panel of the present invention will be described with reference to specific examples.

(Example 1)
FIG. 4 shows an explanatory view schematically showing a cross section of the vehicle interior panel of the first embodiment. FIG. 5 shows an explanatory diagram schematically showing a substrate and a skin body in the vehicle interior panel of the first embodiment. FIG. 6 shows an explanatory view schematically showing a cross section of the skin body in the vehicle interior panel of the first embodiment. FIG. 7 shows an explanatory diagram schematically illustrating a method of manufacturing the skin body in the vehicle interior panel of the first embodiment.
Hereinafter, in the first embodiment, the upper, lower, left, right, back, and front mean the upper, lower, left, right, back, and front shown in FIG. The vertical direction is the opening direction of the substrate, and the left-right direction is the direction orthogonal to the opening direction of the substrate.

As shown in FIG. 4, the vehicle interior panel 1 of the first embodiment has a substrate 2, a skin body 3, and an adhesive layer 4. The vehicle interior panel 1 is arranged on the front side of the airbag unit 90.
More specifically, the airbag unit 90 has a retainer 97 and an airbag 95 and an inflator 96 housed inside the retainer 97. The vehicle interior panel 1 of the first embodiment is arranged on the front side of the door 98 in the retainer 97 and covers the airbag 95 from the front side.

In the vehicle interior panel 1, the base 2 is directed toward the airbag 95, and the surface 3f of the skin body 3 is exposed inside the vehicle interior.
The substrate 2 is made of PP. The substrate 2 has a cleavage groove 20 that opens on the back surface side.

As shown in FIG. 5, the cleavage groove 20 of the substrate 2 is a WY type, and extends in a substantially V shape provided at each of the main line portion 21 extending linearly in the left-right direction and the left and right end portions of the main line portion 21. It has an auxiliary line portion 22. The cleavage groove 20 is broken around the main wire portion 21, and the substrate 2 is opened in the vertical direction from the back side to the front side due to the breakage of the cleavage groove 20. That is, the opening direction of the base 2 in the vehicle interior panel 1 of the first embodiment is the vertical direction, and the direction orthogonal to the opening direction of the base 2 is the left-right direction.

The skin body 3 is a knit fabric made of PET. The tensile strength of the epidermis 3 is weak in the vertical direction. Since the opening direction of the base 2 is also the vertical direction as described above, the tensile strength a of the epidermis 3 and the opening direction of the base 2 in the opening direction of the base 2 (the direction of the solid line arrow in FIG. 5). The tensile strength b of the epidermis 3 in the direction orthogonal to (the direction of the broken arrow arrow in FIG. 5) has a relationship of a <b. More specifically, in the skin body 3 in the vehicle interior panel 1 of the first embodiment, the relationship between the tensile strength a and the tensile strength b is 1.2a <b.

As shown in FIG. 6, the epidermis body 3 is composed of a first region 31 and a second region 32. The first region 31 is denser than the second region 32, the porosity of the first region 31 per cross-sectional area is about 30 area%, and the porosity of the second region 32 per cross-sectional area is about 70 area%. Is. Therefore, the porosity per cross-sectional area of the second region 32 is about 2.3 times the porosity per cross-sectional area of the first region 31.

The skin body 3 is a double Russell knitted fabric cut in half in the thickness direction.
As shown in FIG. 7, the original fabric of the double Russell knitted fabric is composed of three regions, two dense regions and a sparse region sandwiched between the two dense regions. The two dense regions are referred to as I region 38 and III region 39, respectively, and the sparse region between the I region 38 and III region 39 is referred to as II region 37. The thread 35 constituting the II region 37 is spread not only in the II region 37 but also in the I region 38 and the III region 39. The I region 38 and the III region 39 are composed of the thread 35 and other threads 36. The II region 37 is composed of only the thread 35.
When such a double Russell knitted fabric is cut in half in the thickness direction, a half-cut knitted fabric having 1/2 of II region 37 and I region 38 and a half-cut knitted fabric having 1/2 of II region 37 and III region 39 are obtained. Is obtained. Such a half-cut knitted fabric is an epidermis 3 having a second region 32 composed of 1/2 of the II region 37 and a first region 31 composed of the I region 38 or the III region 39.

The epidermis 3 is adhered to the surface 2f of the substrate 2. As a result, the adhesive layer 4 is interposed between the substrate 2 and the epidermis 3. In the vehicle interior panel 1 of Example 1, a yellow urethane resin adhesive was used as the adhesive.

When the airbag 95 is deployed, the door 98 of the retainer 97 opens vertically from the back side to the front side. Along with this, the cleavage groove 20 of the substrate 2 is broken, and the substrate 2 also opens in the vertical direction from the back side to the front side. Then, an external force from the substrate 2 acts on the epidermis 3 on the front side of the substrate 2, and the epidermis 3 is broken. Since the epidermis body 3 is a single knit, when a part of the epidermis body 3 breaks, the breakage propagates to the entire epidermis body 3. Therefore, according to the vehicle interior panel 1 of the first embodiment, the skin body 3 breaks with high reliability when the airbag 95 is deployed. Further, the tensile strength of the epidermis 3 is weak in the vertical direction, which is the opening direction of the substrate 2. This also causes the epidermis 3 to break with high reliability when the airbag 95 is deployed.
In the vehicle interior panel 1 of the first embodiment, a half-cut product obtained by halving the double Russell knitted fabric in the thickness direction is used as the skin body 3. As a result, the breakage of the epidermis body 3 when the airbag is deployed is made more reliable.
As described above, in the vehicle interior panel 1 of the first embodiment, the skin body 3 is easily broken even if the skin body 3 is not provided with the cleavage groove. Therefore, since it is not necessary to position the cleavage groove of the skin body 3 with respect to the cleavage groove 20 of the substrate 2, the vehicle interior panel 1 of the first embodiment can be easily manufactured.

Here, the first region 31 of the skin body 3, which is the region on the adhesive layer 4 side, is denser than the second region 32, which is the region on the opposite side of the adhesive layer 4. Therefore, when the substrate 2 and the epidermis 3 are adhered to each other, the adhesive stays in the first region 31 and hardly reaches the second region 32. Therefore, in the vehicle interior panel 1 of the first embodiment, even though the single knit is used as the skin body 3, the exudation of the adhesive to the surface 3f of the skin body 3 is suppressed. Therefore, the vehicle interior panel 1 of the first embodiment is also excellent in appearance.

Further, since the adhesive layer 4 in the vehicle interior panel 1 of the first embodiment is yellow, yellowing due to deterioration of durability of the adhesive layer 4 is less noticeable, and there is an advantage that the beauty of the appearance is maintained for a long period of time.

Further, by using a half-cut product obtained by halving the double Russell knitted fabric in the thickness direction as the skin body 3, the cut surface of the II region 37 shown in FIG. 7 is exposed on the surface of the skin body 3. Therefore, the surface of the vehicle interior panel 1 of the first embodiment is given a unique texture derived from the cut surface. Also for this reason, the vehicle interior panel 1 of the first embodiment is excellent in appearance.

The present invention is not limited to the embodiment described above and shown in the drawings, and can be appropriately modified and implemented without departing from the gist. In addition, each component shown in the present specification including the embodiment can be arbitrarily extracted and combined.

1: Vehicle interior panel 2: Base 2f: Surface of base 20: Cleavage groove 3: Epidermis 3f: Surface of epidermis 31: First region 32: Second region 4: Adhesive layer 95: Airbag

Claims (4)

An interior panel for a vehicle having a substrate and a skin body adhered to the surface of the substrate via an adhesive layer, and covering the airbag with the substrate directed toward the airbag.
The substrate is provided with a cleavage groove.
The epidermis is
It is a single knit and
It has a first region located on the substrate side and a second region located on the opposite side of the substrate with the first region interposed therebetween.
The first region is a vehicle interior panel that is denser than the second region. In the epidermis, the tensile strength a in the opening direction of the substrate due to the fracture of the cleavage groove and the tensile strength b in the direction orthogonal to the opening direction of the substrate have a relationship of a <b. The vehicle interior panel according to claim 1. The vehicle interior panel according to claim 1 or 2, wherein the skin body is a double Russell knitted fabric cut in half in the thickness direction. The vehicle interior panel according to any one of claims 1 to 3, wherein the adhesive layer is yellow.

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