JP2009279964A - Molded interior material for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a molded interior material for a vehicle formed by applying a surface treatment compatible with a urethane-based adhesive and best suitable for entanglement to a glass fiber fabric woven by a glass yarn with a lubricant while having flexural strength actually usable as the molded interior material for the vehicle with the glass fiber fabric and a substrate integrally structured, and moreover, reduced in weight by a decrease in the amount of the glass fiber fabric used compared with that of a glass mat. <P>SOLUTION: This interior material consists of a substrate layer 11 formed of hard urethane, a first glass fiber reinforcement layer 12 and a second glass fiber reinforcement layer 14 joined respectively on both sides of the substrate layer, a skin layer 13 joined on the outside the first glass fiber reinforcement layer 12, and a backside layer 15 joined on the outside the second glass fiber reinforcement layer 14. At least the first glass fiber reinforcement layer 12 is formed of the glass fiber fabric material. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a molded interior material for a vehicle such as a molded ceiling material for a vehicle, a molded door trim, a rear package tray, a tonneau board, and a floor material for a vehicle.

  Conventionally, as a molded interior material for a vehicle, for example, as a material constituting a molded ceiling material, a hard urethane or the like is used as a base material, glass fiber reinforcement layers are provided on both sides thereof, and a skin layer and a back surface are provided on the outer sides of both reinforcement layers, respectively. What provided the layer is known (patent document 1).

  In this case, as the glass reinforcing layer, a glass mat or the like coated (impregnated) with an adhesive made of a urethane-based resin (for example, an isocyanate-based resin) to obtain the reinforcement of the base material and the adhesive strength between the skin and the back surface. Sandwiches are provided on both sides of the substrate. As the skin layer, non-woven fabric, tricot & slab urethane laminate skin, woven fabric, knitted fabric, plastic sheet and the like are used.

  In the case of the urethane base ceiling as described above, the rigidity is generally secured by a glass mat that serves as a glass fiber reinforcing layer bonded to the base and both surfaces thereof. In addition, the rigidity is not just the sum of the stiffness of the three, but a glass mat that cannot be stretched or contracted by an external force is adhered to both surfaces of a substrate with a certain thickness. A sandwich-like structure as provided is made, and the overall rigidity is maintained by ensuring deformation resistance on both sides of the substrate (so-called gimbal cell).

For example, a glass fiber chop (a product obtained by cutting roving glass), a glass fiber mat, and a glass fiber cloth are provided on both sides of a core material made of polyurethane foam. There is known one provided with a back layer and a skin layer (Patent Document 2).
JP 2001-301539 A JP 2002-046545 A

Due to recent environmental problems, especially energy-saving problems, demands for weight reduction for automobile parts / parts are increasing, and there is a strong demand for weight reduction for ceilings. In the above-described molded ceiling, for example, as a general one, urethane base material: 6.5 t, glass mat (both upper and lower); 100 g / m ² + adhesive; 15 g / m ² , non-woven skin: 70 g / M ² , back paper (film + non-woven fabric); in the case of a urethane base molding ceiling composed of 30 g / m ² , the urethane base is about 40% by weight, the glass fiber reinforcing layer and the adhesive (both sides of the urethane base) About 45% by weight, and the skin layer and the back layer are about 15% by weight. On the ceiling, the weight of the urethane base material and the glass fiber reinforcing layer is very large. However, it is difficult to reduce the weight of a urethane base material because of the demand as a core material, and among these, there is a great expectation for weight reduction of the glass fiber reinforcing layer. However, the molded ceiling as shown in Patent Document 1 only discloses a glass fiber reinforcement layer as a fiber reinforcement layer, and does not disclose the weight reduction of the glass fiber reinforcement layer.

  Patent Document 2 discloses that in order to reduce the weight of glass fiber, the base material is pre-impregnated with an isocyanate-based adhesive as an adhesive, and the glass fiber layer is pre-impregnated with an isocyanate-based adhesive as an adhesive. is doing. Further, it is disclosed that an isocyanate-based adhesive has a good affinity with glass fibers and is excellent in reactivity, adhesiveness and workability.

In the glass fiber layer as shown in Patent Document 2, when the glass fiber reinforcing layer is made of chopped strand glass (hereinafter referred to as a glass mat), theoretically, even if the basis weight is about half of the current level, the strength is increased. It is predicted that there may be no problem. However, in this glass mat, the glass mat is manufactured by dispersing the glass fiber bundle as a manufacturing process thereof, and it is difficult to make a completely uniform basis weight on the entire mat. For example, in the case of a nominal basis weight of 100 g / m ² , as shown in FIG. 5, there are many rough portions with a basis weight of only about 50 g / m ² , and the basis weight of the glass mat is further reduced. The lower it is, the more this tendency seems to expand. Therefore, in the above-described molded ceiling, the bending strength at the rough portion (see FIG. 5B) is reduced to about half of the bending strength at the normal portion (see FIG. 5A). It is the result.

When such a rough part hits a place where the molding ceiling surface changes drastically, such as an overhead console part or an assist grip, it is stretched during the molding process to further increase the amount of bending required for the molding ceiling. The lower limit of strength will be interrupted. Therefore, in general glass mats, it is said that glass mats having a nominal value of 100 g / m ² or less cannot generally be used in consideration of variation in basis weight due to the manufacturing process.

  In addition, the glass mat is dispersed in the manufacturing process while cutting a glass fiber bundle in which about 80 glass filaments of about 10 μ are bundled, for example, so that the cut fibers overlap to form a brush-like bundle. There are many cases that fall in the so-called “brush-shaped drop”. FIG. 6 (A) shows a photograph showing the “brush-like drop-off” of the glass mat, and FIG. 6 (B) shows the epidermis in which the epidermis of the part has become a so-called “swollen worm” after molding. The photograph which peeled off that part of is shown. When it becomes such a molded ceiling, it is impossible to rework it, and the molded ceiling is directly disposed of as an industrial waste, resulting in a large loss.

Furthermore, FIG. 7 shows a state in which the glass fiber bundle is a large “glass lump”, in which the portion where the epidermis is raised in a wide range is peeled off, and the upper right is the glass mat side (on the back). A circular glass lump is observed in the substrate), and the lower left is the back side of the epidermis, but a trace of the glass lump is visible on the skin side. The ceiling with this glass lump is also abandoned (ie, discarded as a defective product), and this is a major problem. However, when the part where the glass fiber bundles overlap and become thicker than usual hits a severe phase of bending change of the molding ceiling, naturally the tension that is severer than usual works at that part, and thicker glass fiber Will get in the way (limit the overall growth locally) and lead to wrinkles. These wrinkled streaks appearing on the surface of the skin due to the glass bundle appear in several places on the molded ceiling, which are called “glass wrinkles”. An example of this “glass wrinkle” is shown in FIG. FIG. 8 (A) shows a partial photograph of a bent portion near the front side of the molded ceiling. FIGS. 8 (B) and 8 (C) are portions where “glass wrinkles” are generated in FIG. 8 (A). These are magnified photos taken from different angles. Fortunately, this “glass wrinkle” can be made indistinguishable by soaking up the epidermis with the tip of the needle and relieving its strong adhesion with the glass mat (so-called sesame seed), but it requires manual work for that, and productivity It has become a big problem.

  As described above, the glass mat has a limit in terms of weight reduction and has problems such as so-called “brush of brush-like” and “swelling of earthworm”.

  On the other hand, Patent Document 2 further discloses the use of a glass net or glass cloth separately from the glass mat.

  Therefore, this inventor also examined the glass net and the glass cloth. As a result, even when the glass net was processed with the same basis weight as the glass mat, sufficient bending strength could not be obtained. In the glass net, because the weft and warp are simply overlapped on the structure, extremely large elongation occurs at the time of molding at the place where the change of the molding ceiling surface such as the overhead console part and assist grip is severe, At this point, the mesh becomes rough, resulting in the lower limit of the bending strength required for the molded ceiling, and it seems that the original reinforcing material was not fulfilled.

  On the other hand, in glass cloth, so-called glass fiber woven fabric (hereinafter simply referred to as glass fiber woven fabric), warp yarn and weft yarn are entangled at the intersection of the mesh portion of the glass yarn, so that it becomes extremely rough. We predicted that it could serve as a reinforcing material and examined glass fiber fabrics. That is, a molded ceiling was formed using a reinforcing layer made of a glass fiber woven fabric having the same basis weight as the glass mat as the glass fiber reinforcing layer. The result was messy and, contrary to the intention, the bending strength was below that of the molded ceiling using a glass mat. It turns out that there is no practicality as it is, and some kind of ingenuity must be made.

  For this reason, the inventor has repeated research several times without giving up the glass fiber fabric. As a result, it has been reached that the urethane adhesive (isocyanate) used for bonding the urethane base material ceiling and the glass fiber reinforcing layer is not entangled with the glass fiber fabric. In other words, even if a urethane adhesive is applied to the surface of the glass fiber fabric body, the urethane adhesive is simply put on the glass fiber fabric body, and the glass fiber fabric body and the urethane adhesive The bond strength between is insufficient. Therefore, it was far from working as a strength member in which the urethane base material and the glass fiber fabric were integrated.

  In order to investigate the cause of this result, the manufacturing process of the glass fiber fabric was analyzed. First, several tens of filaments are made into yarn (twisted into yarn) to make glass yarn. Furthermore, a glass fiber fabric is manufactured after weaving the glass yarn. When the glass yarn is woven into a woven fabric, the surface of the glass yarn is coated with a starch-based slip agent because the glass yarn cannot be woven unless slippage between the glass yarns is improved. In order to improve slippage when making a woven fabric, the starch-based slip agent coated on the surface of the glass yarn is not compatible with a urethane adhesive (for example, an isocyanate-based adhesive used for bonding to a base material) It was found that this was the cause of the lack of strength.

  As a solution, in order to eliminate this incompatibility, it is conceivable to remove the starch-based sliding material by incineration after producing the glass fabric. However, when it does so, while the intensity | strength of a glass fiber fabric body falls, the process becomes extra and results in a cost increase.

  Therefore, in the present invention, without removing the slip agent coated on the surface of the glass yarn after making the glass fabric body, the compatibility with the urethane adhesive is good, and the surface treatment is optimized for entanglement. I continued to research.

  In the present invention, a glass fiber fabric woven with a glass yarn with a slip agent has a good compatibility with a urethane-based adhesive and is subjected to a surface treatment optimized for entanglement, so that the glass fiber fabric and the base material have an integrated structure. It is an object of the present invention to provide a molded interior material for a vehicle that has bending strength that can be practically used as a molded interior material for a vehicle and that can reduce the amount of glass fiber fabric used to reduce the weight as compared with a glass mat.

  Specifically, the surface of a glass fiber woven fabric produced by coating a silane-based treatment agent or a mixture of a silane treatment agent and a urethane emulsion on a glass yarn surface with a slipping agent such as a starch-based material, For example, the glass fiber woven fabric is dipped in the surface treatment agent solution and coated.

  The invention of claim 1 includes a base layer made of hard urethane, a first fiber reinforcing layer and a second fiber reinforcing layer respectively bonded to both sides of the base layer, and an outer side of the first fiber reinforcing layer. An interior material for a vehicle comprising an outer skin layer and a back layer bonded to the outside of the second fiber reinforcement layer, wherein at least the first fiber reinforcement layer is made of a glass fiber fabric.

  According to a second aspect of the present invention, in the molded interior material for a vehicle according to the first aspect, the glass fiber woven body is made of an entangled weave.

  According to a third aspect of the present invention, in the molded interior material for a vehicle according to the first or second aspect, the glass fiber woven body is joined to the base material layer with a urethane-based adhesive to constitute the glass fiber woven body. The surface of the glass yarn is coated with a surface treatment agent that has good compatibility with the glass yarn and also has good compatibility with the urethane adhesive.

  According to a fourth aspect of the present invention, in the molded interior material for a vehicle according to the third aspect, a glass fiber woven body is formed of the glass yarn coated with a slip agent on the surface, and the surface of the glass fiber woven body is a surface. Treated with a treatment agent, the surface treatment agent strongly bonds the glass yarn constituting the glass fiber fabric and the urethane adhesive.

  According to a fifth aspect of the present invention, in the molded interior material for a vehicle according to the fourth aspect, the slipping agent is a starch-based material.

  The invention according to claim 6 is the molded interior material for a vehicle according to claim 3 or 4, wherein the surface treatment agent is composed of a silane treatment agent or a mixture of a silane treatment agent and another surface treatment agent. It is characterized by.

The invention of claim 7 provides the vehicle molding interior material according to any one of claims 1 to 6, the basis weight of the fabric of the glass fiber is 25g / m ² ~120g / m ² Features.

  In the first aspect of the invention, the glass fiber woven fabric is substantially uniform in any part as compared to the glass mat, and the adhesive can be adhered substantially uniformly. Uniformly integrated. In particular, there are no problems that have occurred with glass mats, that is, there are no drops or glass lumps. It becomes unnecessary. In particular, the “glass-like drop-off” and “earthworm swelling”, which have been problems with conventional glass mats, result in extremely poor merchantability when exposed to the epidermis side. It is necessary to provide the glass fiber reinforcing layer, and it may be provided on the back surface side.

  In the invention of claim 2, it is a woven glass fiber woven fabric, and can satisfy the strength such as the bending strength as a molded interior material for a vehicle with a small basis weight and can be reduced in weight. In particular, leno weaving is a weaving method in which two warp yarns are entangled with each other so that they are intertwined with the weft yarns, and the weft yarns are bound with the warp yarns so that even when they are coarse, there is no misalignment. For this reason, even when a portion such as an overhead console portion is subjected to a large deformation, the glass fiber can be formed without being thinned. Further, the adhesive between the weft yarns and the warp yarns is almost evenly present, so that the bonding strength between the glass fiber fabric, the base material, and the skin material (back surface material) can be secured.

  In the invention of claim 3, since the surface of the glass yarn is coated with a surface treatment agent that is compatible with the glass yarn constituting the glass fiber woven body and also compatible with the urethane-based adhesive, A vehicle interior material integrated with the base material can be obtained.

  In the invention of claim 4, since the surface treatment agent coated on the surface of the glass fiber woven body firmly bonds the glass yarn constituting the glass fiber woven body and the urethane-based adhesive, the glass fiber having a small basis weight. Even a woven fabric can satisfy the strength such as bending strength as a molded interior material for vehicles, and can be reduced in weight.

  In the invention of claim 5, since it can be woven with glass yarn coated with a starch-based slip agent, a glass fiber fabric composed of a uniform layer can be obtained.

  In the invention of claim 6, since the surface treatment agent is composed of a silane treatment agent or a mixture of a silane treatment agent and another surface treatment agent, the surface treatment agent is excellent in entanglement with the glass yarn of the glass fiber fabric and is urethane-based. Since the entanglement with the adhesive is excellent, it is possible to obtain a substrate in which the base material and the glass fiber fabric are reliably integrated.

In the invention of claim 7, since the basis weight of the fabric of glass fibers is ^{25g / m 2 ~120g / m 2} , it can be lightweight.

Conventionally, in a molded ceiling using a chopped slant glass mat, a glass mat having a basis weight of about 100 g / m ² is employed for both the first glass fiber reinforcing layer and the second glass fiber reinforcing layer, and further strength improvement is required. In some cases, a glass mat of about 200 g / m ² has been used for the second glass fiber reinforcing layer. On the other hand, the basis weight of the glass fiber woven body of the present invention has a great feature in that it can be greatly reduced as compared with the conventional chopped slant glass mat, but if the basis weight of the glass fiber woven body is small, it is reinforced. insufficient strength as a layer, can not be lighter and often basis ^{weight, 25g / m 2 ~120g / m} 2, particularly preferably a 25~80g / ^{m 2.}

  In the present invention, if the basis weight of the adhesive made of a thermosetting resin such as urethane resin is small, the strength as the reinforcing layer is insufficient, and if the basis weight is large, wrinkles caused by the glass fiber reinforcing layer are noticeable after molding. As a result, the product cannot be formed as a product. Therefore, the content is preferably 10% by weight to 50% by weight of the first glass fiber reinforcing layer. Examples of the skin layer include polyolefin, polyester, polyamide-based woven or non-woven fabric, and vinyl leather. When the molded interior material is used as a molded ceiling material, the urethane foam as the base material layer may be in the form of a sheet, and the thickness is 3 to 12 mm.

  The production method differs from the production and preparation of conventional glass mats in the production and preparation of glass fiber fabrics, but the prepared glass fiber reinforcement layer is overlapped with the base material, skin material, and back material. There is no significant difference in molding. That is, a base layer of urethane foam, a first glass fiber reinforcing material sheet in which a urethane resin adhesive is applied to the first glass fiber layer, and a second glass in which a urethane resin adhesive is applied to the second glass fiber layer. A fiber reinforcing material sheet, a skin material, and a back surface material are prepared, and a first glass fiber reinforcing sheet and a second glass fiber reinforcing material sheet are laminated on both sides of the base material layer, and then the first glass fiber reinforcing material sheet A skin material is laminated on the outside, and a back material is laminated on the outside of the second glass fiber reinforcing material sheet. Thereafter, the laminate is placed in a heated mold and integrally molded by heating and pressing.

  A urethane-based resin adhesive may be applied to the urethane foam side (for example, spray coating), and a glass fiber reinforcing layer may be provided so as to overlap the glass fiber fabric for reinforcing material.

  Hereinafter, the best embodiment of the present invention will be described in detail with reference to the drawings. The following description of the preferred embodiments is merely exemplary in nature and is in no way intended to limit the invention, its application, or its application.

(Embodiment 1)
Embodiment 1 shows an example in which the present invention is applied to a molded ceiling of a vehicle. FIG. 1 shows a partial view of a molded ceiling according to Embodiment 1 of the present invention. FIG. 2 is a diagram for explaining a laminated state of the formed ceiling material used in the first embodiment of FIG. In FIG. 1, the left side is the front side of the vehicle, and the right side is the rear side of the vehicle.

  On both sides of the molded ceiling 1 on the front side, sun visor recesses 2 (only one is shown) are formed, and an overhead console opening 3 is formed at an intermediate position therebetween. Although not shown in the figure, the cross section of this portion is formed to be greatly recessed from a normal plane. 4 indicates the position of the assist grip provided on both sides, and 5 indicates the position of the room lamp.

  As shown in FIG. 2, a glass fiber reinforcement layer 14 is laminated on the back surface side of the base material layer 11 made of urethane foam, and a back material 15 is laminated on the outside thereof. This is a structure in which a layer 12 and a skin layer 13 are further laminated on the outer side.

  Next, the manufacturing method of the shaping | molding ceiling material of Embodiment 1 is demonstrated. Prepare a thermoformable urethane foam sheet. Moreover, a glass fiber fabric is prepared. As shown in FIG. 3, in the glass fiber fabric, as a S1 step, several tens of glass fibers (filaments) of about 10 μ are bundled to form yarns (yarns). And as shown to S2 step, a starch type slip agent is coat | covered as a process for improving the slip of a glass thread. As a step S3, the glass yarn entwined with the sliding material is entered. The entangled weave is a known weaving method, and the description of the entangled weave is omitted. In the present embodiment, a glass fiber fabric made of woven EL13 JIS standard is used. Next, as step S4, the glass fiber fabric woven with the glass yarn covered with the slip agent is dipped in a solution of the surface treatment agent to coat the surface with the surface treatment agent. As this surface treatment agent, it is compatible with the urethane-based adhesive that bonds the glass fiber and the base material and the glass yarn of the glass fiber woven body, and if it can be entangled with both, there is no need to specify the material. For example, in a molded ceiling in which the base material is made of urethane foam, the surface treatment agent is preferably a silane surface treatment agent or a mixture of a silane surface treatment agent and a urethane emulsion.

  Further, a back paper is prepared as a back material. Next, as step S5, a process of manufacturing a molded ceiling using this molding material will be described. A first glass fiber reinforcing sheet 12 coated with a urethane-based adhesive and a second glass fiber reinforcing material sheet 14 coated with a urethane-based adhesive are laminated on both sides of the base material layer 11, and then the first glass The skin layer 13 is laminated on the outside of the fiber reinforcing material sheet 12, and the back material 15 is laminated on the outside of the second glass fiber reinforcing material sheet 14, and then the laminated body is placed in a heated mold. It is integrally formed by heating and pressing.

  Next, the Example at the time of manufacturing the shaping | molding ceiling material as a shaping | molding interior material which concerns on this invention is described.

Example 1
In Example 1, a hard-formable urethane foam sheet (1200 mm × 1600 mm × thickness 6.5 mm) having open cells with a unit area weight of 180 g / m ² is prepared. EL08A is prepared as the first glass fiber fabric and the second glass fiber fabric. As a treatment for improving the slippage of the glass yarn, a glass fiber woven fabric made of entangled woven fabric of JIS standard EL08A coated with a starch-based slip agent and woven is prepared. These glass fiber fabrics are immersed in a solution of a surface treatment agent to coat the surface with the surface treatment agent. As this surface treatment agent, a mixture of a silane surface treatment agent and a urethane emulsion was used. The basis weight of these glass fiber fabrics was 28.9. An adhesive of urethane resin to be applied to the glass fiber fabric is applied with a basis weight of 12 g / m ² . Further, a non-woven fabric with a basis weight of 70 g / m ² is prepared, and a normal laminated back material made of a non-woven fabric and PP (polypropylene) film is prepared.

  Each material prepared as described above is placed and laminated in the mold in the order of skin material-first glass fiber fabric-foamed urethane foam sheet-second glass fiber fabric-back material. While pressing in a mold, they are bonded together. After molding and bonding, the molded product was removed from the mold, and a molded ceiling having a width of 1200 mm × 1600 mm and a total thickness including all the materials forming the ceiling was 7.5 mm was manufactured.

(Example 2)
Example 2 is different from Example 1 in that the glass fiber fabric is changed to JIS standard: EL13, and the isocyanate adhesive as the urethane adhesive is set to 15 g / m ² .

(Comparative Example 1)
A molded ceiling similar to that of the first embodiment was formed using a conventional glass mat with a basis weight of 100 g / m ² and an isocyanate adhesive of 15 g / m ² .

  Test results of Examples 1 and 2 and Comparative Example 1 will be described with reference to FIG. Examples 1 and 2 show the average value of 10 samples. Comparative Example 1 shows the average value of 3 samples. That is, in Comparative Example 1, since the experimental result could be predicted, it was limited to 3 samples. In addition, the fabric weight of the comparative example 1 (coarse part) is an estimated value from a visually similar place, and this part is an average value of 5 samples. All the test samples were sampled from the general surface of the molded ceiling (planar part). Especially for the (rough part) of Comparative Example 1, the rough part of the glass mat was specified in advance before each material was laminated. The minimum value obtained by taking several samples from the portion after lamination and molding is shown, and is an average value obtained by performing five such measurements.

  In general, the required value as a molded ceiling is bending strength: about 10 N / 50 mm, bending elastic gradient: about 30 N / 50 mm / cm, but values that are sufficiently satisfactory in both Examples 1 and 2 are obtained. Yes. In Comparative Example 1, the above required value is satisfied if it is not a rough portion, but it cannot be satisfied in the rough portion.

In addition, as a result of measuring the weight of each sample, it was Comparative Example 1 (conventional product); 515 g / m ² , whereas in Example 1, it was 365 g / m ² and a weight of 71% (29% weight reduction), In Example 2, 430 g / m ² and 83% weight (17% weight reduction) were obtained, which was a great improvement.

  The molded interior material of the present invention can be used for molded interior materials for automobiles, for example, molded ceiling materials for automobiles, molded door trims, rear package trays, floor materials and the like.

FIG. 3 is a partial view of a molded ceiling of an automobile according to Embodiment 1 of the present invention. It is a figure explaining the lamination | stacking state of the shaping | molding ceiling material used for FIG. It relates to Embodiment 1 of this invention, and shows a manufacturing process typically. The performance evaluation table | surface of this invention and a comparative example is shown. The enlarged photograph explaining the variation state of a chopped strand glass fiber bundle in connection with a prior art is shown. An enlarged photograph explaining a glass fiber bundle in a state where it falls in a brush-like drop is shown in the related art. The enlarged photograph explaining a related art and explaining that the glass fiber bundle is a large glass lump is shown. The enlarged photograph explaining the generation | occurrence | production state of "glass wrinkle" related to a prior art is shown. FIG. 8 (A) shows a partial photograph of a bent portion near the front side of the molded ceiling. FIGS. 8 (B) and 8 (C) are portions where “glass wrinkles” are generated in FIG. 8 (A). These are magnified photos taken from different angles.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Molded interior material 11 for vehicles Base material layer 12 1st glass fiber reinforcement layer 13 Skin layer 14 2nd glass fiber reinforcement layer 15 Back surface layer

Claims (7)

A base layer made of hard urethane, a first fiber reinforcing layer and a second fiber reinforcing layer bonded to both sides of the base layer, a skin layer bonded to the outside of the first fiber reinforcing layer, and In the vehicle interior material comprising the back layer bonded to the outside of the second fiber reinforcing layer,
A molded interior material for a vehicle, wherein at least the first fiber reinforcing layer is made of a glass fiber fabric. The molded interior material for a vehicle according to claim 1,
A molded interior material for a vehicle, wherein the glass fiber woven body is made of entangled weave. The molded interior material for a vehicle according to claim 1 or 2,
The glass fiber fabric is bonded to the base material layer with a urethane-based adhesive,
A molded interior material for a vehicle, wherein the surface of the glass yarn is coated with a surface treatment agent having a good compatibility with the glass yarn constituting the glass fiber fabric and a good compatibility with the urethane-based adhesive. The molded interior material for a vehicle according to claim 3,
A glass fiber woven body is formed with the glass yarn coated with a slip agent on the surface,
The surface of this glass fiber fabric is treated with a surface treatment agent,
The molded interior material for a vehicle, wherein the surface treatment agent firmly bonds the glass yarn constituting the glass fiber fabric body and the urethane adhesive. The molded interior material for a vehicle according to claim 4,
A molded interior material for vehicles, wherein the slip agent is a starch-based material. The molded interior material for a vehicle according to claim 3 or 4,
The molded interior material for vehicles, wherein the surface treatment agent comprises a silane treatment agent or a mixture of a silane treatment agent and another surface treatment agent. The molded interior material for a vehicle according to any one of claims 1 to 6,
Vehicle molded interior material basis weight of the fabric of the glass fibers characterized in that it is a ^{25g / m 2 ~120g / m 2} .