JP2000043067A - Molding of interior material for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the adhesion of an interior base material and a skin material by forming the interior base material from a soft felt layer. SOLUTION: An interior base material 2 is arranged to press molds 12, 13 and, after a skin material 3 is arranged to the surface of the interior base material 2, the interior base material 2 and the skin material 2 are integrally subjected to press molding by press molds 12, 13. The interior base material 2 is formed from a soft felt layer formed by mixing low m.p. PET and high m.p. PET. At a time of press molding, air is supplied to the interior base material from the rear surface side thereof and internal pressure of 2 kg/cm2 or more is applied to the interior base material 2 comprising the soft felt layer to bond the interior base material 2 comprising the soft felt layer and the skin material 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming an interior material for a vehicle, and more particularly, to a method for forming a ceiling, a door trim, or the like, in which an interior base material is disposed on a press mold, and the interior base material is provided. The present invention relates to a method for forming an interior material for a vehicle, in which a skin material is arranged on a surface side of the material, and then integrally pressed by a press mold to form an interior material for a vehicle.

[0002]

2. Description of the Related Art Conventionally, molded ceilings for vehicles and the like, door trims and other interior materials are formed by joining a skin material to an interior base material such as a ceiling base material. As the interior base material, a felt layer made of PET fiber is used, and as the skin material, a nonwoven fabric alone is formed, or a fabric surface such as a tricot is laminated on the surface side of the nonwoven fabric.

[0003] Conventionally, when joining an interior base material and a skin material, the surface temperature of the interior base material is set to 220 ° C to 240 ° C.
, And laminated with the skin material, and press molded at room temperature to be integrated.

[0004]

However, in the above-mentioned conventional method for molding an interior material for a vehicle, the interior base material is heated and laminated on a skin material in a state where the interior base material is laminated on a skin material. Since the press mold at room temperature is pressed against the interior base material and the skin material after insertion, if a felt layer made of PET fiber is used as the interior base material,
It is difficult to apply pressure to the felt layer, the adhesiveness to the skin material is deteriorated, and it is difficult to crush the felt layer more than necessary to obtain a desired thickness. For this reason, the felt layer is increased in hardness by increasing the basis weight thereof, and is pressed against the skin material. However, the use amount of the felt layer is increased and the hardness is increased.

An object of the present invention is to pay attention to the unsolved problems of the conventional example, and the interior base material can be formed from a soft felt layer, and the adhesion to the skin material is improved. An object of the present invention is to provide a method for forming a vehicle interior material which is soft and excellent in feel and which is excellent in workability and economy.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and a method of forming an interior material for a vehicle according to claim 1 of the present invention comprises disposing an interior base material in a press mold. A method of molding a vehicle interior material, wherein a skin material is disposed on the surface side of the interior base material and then press-molded integrally with a press mold to form a vehicle interior material, wherein the interior base material comprises a soft felt layer. And press-forming the interior base material and the skin material, wherein the internal pressure of the interior base material composed of the soft felt layer is increased to bond the interior base material and the skin material.

In the invention according to the first aspect, the interior base material is formed of a soft felt layer, and when the interior base material and the skin material are pressed, the internal pressure of the interior base material made of the soft felt layer is reduced. Raises and adheres the interior base material and the skin material, so it is possible to reduce crushing of the interior base material composed of the soft felt layer, and it is possible to bring the interior base material and the skin material into close contact, and it is soft and touchable. However, it is possible to easily and quickly obtain an excellent interior material for a vehicle.

According to a second aspect of the present invention, there is provided a method of molding an interior material for a vehicle, wherein the interior substrate is disposed in a press molding die, and a skin material is disposed on the surface side of the interior substrate, and then integrated with the press molding die. A method for molding an interior material for a vehicle, comprising press-molding the interior material for a vehicle, wherein the interior substrate is formed of a soft felt layer formed by mixing a low-melting PET and a high-melting PET. When press-forming the material and the skin material, the internal pressure of the interior base material is increased, and the interior base material composed of the soft felt layer and the skin material are bonded.

In the invention according to claim 2, the interior base material is formed of a soft felt layer formed by mixing a low melting point PET and a high melting point PET, and the interior base material and the skin material are formed by press molding. Since the internal pressure of the interior base material is increased and the interior material made of the soft felt layer is adhered to the skin material, the crushing of the interior base material made of the soft felt layer can be reduced. Acts as a binder, improves shape retention, and raises the internal pressure of the interior base material, so that the interior base material and the skin material can be in close contact with each other, and is soft and has an excellent touch. The material can be obtained simply and quickly.

Further, in the method of molding an interior material for a vehicle according to claim 3, the interior substrate is arranged in a press mold, and a skin material is arranged on the surface side of the interior substrate, and then integrated with the press mold. In the method of molding an interior material for a vehicle, the interior base material is formed of a soft felt layer, and the soft felt layer is formed at the time of press-molding the interior base material and a skin material. An internal pressure of ² kg / cm ² or more is applied to the interior base material made of, and the interior base material made of the soft felt layer is adhered to the skin material.

In the invention according to the third aspect, the interior base material is formed of a soft felt layer, and when the interior base material and the skin material are press-formed, the interior base material formed of the soft felt layer is 2 kg / cm 2. ^By applying an internal pressure of ² or more and bonding the interior base material composed of the soft felt layer and the skin material, it is possible to reduce crushing of the interior base material composed of the soft felt layer, and to reduce the internal pressure of the interior base material. Is increased to ² kg / cm ² or more, so that the interior base material and the skin material can be in close contact,
It is possible to easily and quickly obtain an interior material for a vehicle that is soft and has an excellent feel.

According to a fourth aspect of the present invention, there is provided a method of forming an interior material for a vehicle, wherein the interior substrate is disposed in a press mold, and a skin material is disposed on a surface side of the interior substrate, and then integrated with the press mold. A method for molding an interior material for a vehicle, comprising press-molding the interior material for a vehicle, wherein the interior substrate is formed of a soft felt layer formed by mixing a low-melting PET and a high-melting PET. At the time of press-forming the material and the skin material, air is supplied from the back side of the interior base material, and an internal pressure of ² kg / cm ² or more is applied to the interior base material composed of the soft felt layer,
It is characterized in that an interior substrate made of a soft felt layer and a skin material are adhered.

[0013] In the invention according to claim 4, the interior base material is formed of a soft felt layer formed by mixing a low melting point PET and a high melting point PET. Since air is supplied from the back side of the interior base material to apply an internal pressure of ² kg / cm ² or more to the interior base material composed of the soft felt layer, the interior base material composed of the soft felt layer and the skin material are bonded. Can reduce the crushing of the interior base material composed of the soft felt layer, and has a low melting point PE.
T acts as a binder to improve the shape retention and to increase the internal pressure of the interior base material to 2 kg / cm ² or more, so that the interior base material and the skin material can be brought into close contact with each other, A vehicle interior material having an excellent feel can be obtained easily and quickly.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a method for forming an interior material for a vehicle according to the present invention will be described in detail with reference to the drawings.
FIG. 2 is a cross-sectional view showing the configuration of an interior material formed by a method of molding an interior material for a vehicle. The interior material 1 includes an interior substrate 2 and a skin material laminated on the surface of the interior substrate 2. 3 is formed.

The interior substrate 2 comprises a low melting point PET and a high melting point P.
The low melting point PET has a melting point of 150 ° C., and the high melting point PET has a melting point of 250 ° C.

The mixing ratio of the low-melting PET and the high-melting PET is not limited to 4: 6, and the low-melting PET or the high-melting PET can be increased. Further, those having different melting points can also be used as appropriate.

The basis weight of the interior base material 2 composed of the soft felt layer is 1.4 kg / m ² and the thickness is 5 mm.
Further, as the skin material 3, a cloth or PET non-woven fabric can be used, and other non-woven fabrics such as PP non-woven fabric, nylon non-woven fabric, and acrylic non-woven fabric may be used. A skin material made of slab urethane laminated in order on the side may be used.

FIGS. 1 and 3 (a) and 3 (b) show an embodiment of a method for forming an interior material for a vehicle according to the present invention.
As shown in FIG. 3 (a), low-melting PET and high-melting PET
Is heated in a heating furnace 11 to a surface temperature of, for example, 150 ° C., which is the melting temperature of the low-melting point PET, formed by mixing 4 to 6 in a ratio of 4 to 6 and formed of a soft felt layer having a thickness of about 10 mm. .

After heating the interior base material 2, the skin material 3 is laminated on the surface side, and then inserted between a pair of upper and lower press forming dies 12, 13 as shown in FIG. 3 (b). A hot melt sheet (not shown) is appropriately laminated on the back side of the skin material 3.

Next, as shown in FIG.
The molds 2 and 13 are clamped to obtain a press-formed state. In this press molding state, the clearance between the pair of upper and lower press molds 12, 13 is set to the thickness of the interior material 1 to be molded.
The interior substrate 2 made of a soft felt layer having a thickness of about 10 mm is press-formed to a thickness of about 5 to 7 mm.

The press forming die 13 has an air supply source 1
5 is formed, and at the time of press molding of the interior material 1, the internal pressure of the interior substrate 2 made of a soft felt layer is increased to give a sense of rigidity, and the interior substrate 2 and the skin are formed. The material 3 is bonded.

In order to increase the internal pressure of the interior substrate 2, air heated to room temperature or about 60 ° C. from the back side of the interior substrate 2 is supplied from the air supply source 15 to the air flow path 17.
To the interior substrate 2 made of a soft felt layer.
Apply an internal pressure of at least kg / cm ² .

When the press molds 12 and 13 are clamped and an internal pressure of ² kg / cm ² or more is applied to the interior substrate 2, the press molds 12 and 13 are improved in order to improve the hermeticity of the press molds 12 and 13. , 13 are preferably provided with a seal member on the outer peripheral edge. In addition, without providing a sealing member, 2 kg
It is sufficient that the air supply source 15 can supply a pressure capable of applying an internal pressure of / cm ² or more.

By maintaining this press-formed state for about 40 to 50 seconds, the low-melting PET is melted and entangled with the high-melting PET, and the low-melting PET acts as a binder to improve shape retention. The interior base material 2 and the skin material 3 are integrated, and thereafter, are taken out from the press molds 12 and 13 as shown in FIG. 2 to obtain the intended vehicle interior material 1. In the embodiment described above, the interior substrate 2 heated to the molding temperature is used, but the interior substrate 2 that is not heated may be used.

[0025]

As described above, according to the first aspect of the present invention, the interior base material is formed from the soft felt layer, and the interior base material is formed from the soft felt layer at the time of press-forming the interior base material and the skin material. The internal pressure of the interior base material is increased and the interior base material and the skin material are adhered to each other, so that it is possible to reduce the crushing of the interior base material composed of the soft felt layer and to make the interior base material and the skin material closely contact each other. This makes it possible to easily and quickly obtain an interior material for a vehicle that is soft and has an excellent touch.

According to the second aspect of the present invention, the interior base material is formed from a soft felt layer formed by mixing a low melting point PET and a high melting point PET, and the pressing of the interior base material and the skin material is performed. At the time of molding, the internal pressure of the interior base material is increased, and the interior base material composed of the soft felt layer is adhered to the skin material, so that the interior base material composed of the soft felt layer can be reduced from being crushed. The melting point PET acts as a binder to improve shape retention and increase the internal pressure of the interior base material, so that the interior base material and the skin material can be brought into close contact, and the vehicle is soft and has excellent touch The interior material can be obtained easily and quickly.

Further, according to the third aspect of the present invention, the interior base material is formed of a soft felt layer. / Cm ² or more to apply the internal pressure to the interior base material composed of the soft felt layer and the skin material, so that the interior base material composed of the soft felt layer can be reduced from being crushed. Since the internal pressure is increased to ² kg / cm ² or more, the interior base material and the skin material can be brought into close contact,
It is possible to easily and quickly obtain an interior material for a vehicle that is soft and has an excellent feel.

According to the fourth aspect of the present invention, the interior base material is formed from a soft felt layer formed by mixing low-melting PET and high-melting PET, and the press between the interior base material and the skin material is performed. At the time of molding, air is supplied from the back side of the interior base material to apply an internal pressure of ² kg / cm ² or more to the interior base material composed of the soft felt layer, thereby bonding the interior base material composed of the soft felt layer and the skin material. Can reduce the crushing of the interior base material composed of the soft felt layer,
T acts as a binder to improve the shape retention and to increase the internal pressure of the interior base material to 2 kg / cm ² or more, so that the interior base material and the skin material can be brought into close contact with each other, A vehicle interior material having an excellent feel can be obtained easily and quickly.

According to the present invention, an interior base material can be formed from a soft felt layer, the adhesiveness to a skin material can be improved, and a soft interior material for a vehicle having excellent feel can be obtained. Thus, it is possible to obtain a method of molding an interior material for a vehicle which is excellent in workability and economy.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a method for molding an interior material for a vehicle according to the present invention.

FIG. 2 is a cross-sectional view of a vehicle interior material formed by the method for molding a vehicle interior material according to the present invention.

3A and 3B show an embodiment of a method for molding a vehicular interior material according to the present invention, wherein FIG.
(B) is a process drawing in which an interior base material and a skin material are provided in a press mold.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Interior material for vehicles 2 Interior substrate 3 Skin material 11 Heating furnace 12 Press molding die 13 Press molding die 15 Air supply source 17 Air flow path

 ──────────────────────────────────────────────────の Continued on the front page F term (reference) 3B088 HA02 4F204 AA25C AA25K AD05 AD16 AG03 AH23 AH26 AR02 FA01 FB13 FB22 FN11

Claims (4)

[Claims] 1. A vehicular interior material in which a vehicular interior material is formed by arranging an interior substrate in a press molding die, arranging a skin material on the surface side of the interior substrate, and then press-molding the same integrally with the press molding die. In the method for molding an interior material, the interior substrate is formed from a soft felt layer, and during press molding of the interior substrate and a skin material, the internal pressure of the interior substrate comprising the soft felt layer is increased, A method for forming an interior material for a vehicle, comprising: bonding a surface material to a skin material. 2. A vehicular interior material in which a vehicular interior material is formed by disposing an interior base material in a press mold, placing a skin material on the surface side of the interior base material, and press-molding the interior material together with the press mold. In the method of molding an interior material, the interior substrate is formed of a soft felt layer formed by mixing a low-melting PET and a high-melting PET, and the interior substrate is press-formed at a time of press molding the interior substrate and a skin material. A method for forming an interior material for a vehicle, comprising: increasing the internal pressure of the interior material; 3. A vehicular interior material in which a vehicular interior material is formed by arranging an interior base material in a press molding die, arranging a skin material on the surface side of the interior base material, and then press-molding the interior material integrally with the press molding die. In the method for molding an interior material, the interior substrate is formed of a soft felt layer, and the internal pressure of ² kg / cm ² or more is applied to the interior substrate made of the soft felt layer during press molding of the interior substrate and a skin material. And bonding the interior base material comprising a soft felt layer and the skin material to the interior material for a vehicle. 4. A vehicular interior material in which a vehicular interior material is formed by disposing an interior substrate in a press mold, placing a skin material on the surface side of the interior substrate, and press-molding the interior material together with the press mold. In the method of molding an interior material, the interior substrate is formed of a soft felt layer formed by mixing a low-melting PET and a high-melting PET, and the interior substrate is press-formed at a time of press molding the interior substrate and a skin material. Air is supplied from the back side of 2kg to the interior base material consisting of soft felt layer.
A method for molding an interior material for a vehicle, comprising applying an internal pressure of at least / cm ² to bond an interior substrate made of a soft felt layer and a skin material.