JP2000301639A - Surface material for vehicle seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the surface material used in a cover seat of a car and excellent in deodorizing function and cutting processability. SOLUTION: In a surface material for a vehicle seat wherein a skin material 2 and a slab urethane layer 3 are bonded to the upper and rear surfaces of a fiber web layer l comprising high m.p. filaments 1a to be integrated therewith, activated carbon 4 is bonded and fixed to the interior of the core 3a on the surface of the contact side with the fiber web layer 1 of the slab urethane layer 3 by a hot-melt powder.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface material for a vehicle seat which is excellent in deodorizing function and cutting workability used for an automobile cover sheet and the like.

[0002]

2. Description of the Related Art Conventionally, as a surface material for a sheet such as a cover sheet of an automobile, a material in which a skin material and a slab urethane layer are laminated and integrated on the front and back surfaces of a fibrous web layer composed of a high melting point filament is known. In addition, various types of such sheets in which activated carbon is mixed to add a deodorizing function have been developed.

However, conventionally, since the activated carbon is carried and fixed by using an adhesive such as hot melt powder or hot melt web, the adhesive strength is low and the activated carbon is easily peeled off. As a result, when the cutting process is performed, the activated carbon is peeled and scattered, so that a sufficient deodorizing function cannot be secured, and a large amount of the adhesive is not uniformly dispersed throughout the sheet. There is a problem that the hardened portion may be hard and give a foreign-body sensation.

[0004]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems in the prior art, and shows that activated carbon is firmly fixed and exhibits a sufficient deodorizing function without peeling off at all. In addition to this, it is possible to exhibit excellent handling properties without activated carbon being peeled and scattered even during cutting processing and the like, and furthermore, the adhesive is evenly dispersed throughout without generating a feeling of foreign matter. It has been completed for the purpose of providing a surface material for a vehicle seat capable of ensuring an excellent usability.

[0005]

Means for Solving the Problems A surface material for a vehicle seat according to the present invention, which has been made to solve the above-mentioned problems, has a skin material and a slab urethane layer integrally bonded on the front and back surfaces of a fiber web layer composed of a high melting point filament. Activated carbon is adhered and fixed to the core on the surface of the slab urethane layer on the side in contact with the fibrous web layer with a hommelt powder.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. The drawings show the case where the present invention is used for a cover sheet of an automobile. In the drawings, reference numeral 1 denotes a fibrous web layer comprising a high melting point filament 1a;
Is a skin material bonded to the surface of the fiber web layer 1, and 3 is a slab urethane layer bonded to the back surface of the fiber web layer 1. In the present invention, the slab urethane layer 3 is added to the slab urethane layer 3 for the purpose of adding a deodorizing function. The activated carbon 4 is dispersed.
Reference numeral 5 denotes a backing base cloth which is superimposed on the back surface of the slab urethane layer 3 as needed, and reference numerals 6 and 7 denote adhesive layers which are melted when heated to give an adhesive ability. No. 7 is made of hommelt powder having a fine particle size.

As the filament of the high melting point fiber forming the fiber web layer 1, for example, a polypropylene fiber, a polyester fiber, a polyamide fiber or the like having a melting point of 200 to 250 ° C. and about 2 to 13 denier is used. And a fiber web layer having a basis weight of about 100 to 600 g / m ² . As the skin material 2, a material having a relatively high melting point and air permeability, such as a fabric material made of a polyester fiber, is used. The slab urethane layer 3 has a thickness of about 1.3 to 5.0 mm.
And a density of about ²⁰ to 30 g / m ² . The backing base cloth 5 is made of a high-density nonwoven fabric having a basis weight of about 10 to 50 g / m ^2, which is generally called a spunbond cloth, and is used for the purpose of improving the strength of the seat cover as necessary. Can be As the adhesive layer 6, a sheet-type hot melt web having a certain degree of air permeability, or a powdery hot melt or the like is used.

In the present invention, activated carbon 4 having a deodorizing function is bonded and fixed to core 3a on the surface of slab urethane layer 3 on the side in contact with fibrous web layer 1 with hommelt powder 8. I have. That is, as shown in FIG. 2, countless concave cores 3a are formed on the surface of the slab urethane layer 3, and activated carbon 4 having a smaller particle diameter than the opening diameter of the core 3a is dispersed inside the core 3a. The activated carbon 4 has a particle size of 100 to 300 μm.
It is adhered and fixed by a fine hommelt powder 8 of about m. As a result, the activated carbon 4 is maintained in a state in which it is securely confined in the core 3a of the slab urethane layer 3, and has a stable deodorizing function without peeling and scattering even if it is subjected to a cutting process or the like. While maintaining, the handleability is also excellent. Furthermore,
Activated carbon 4 is contained in the core 3a of the slab urethane layer 3, and a large amount of the hommelt powder 8 does not enter the core 3a. A high-quality surface material can be obtained.

The step of forming the surface material of the present invention will be described below. First, a backing base cloth 5 is laminated on the back surface of the slab urethane layer 3 by frame lamination or adhesion, and activated carbon 4 and hommelt powder 8 having a particle diameter smaller than the pore diameter of the core 3a are coated on the surface of the slab urethane layer 3. Deposit. Next, the fiber web layer 1 is laminated on the slab urethane layer 3 and subjected to needle sticking with a pene number of about 10 to 40 needles / cm ² by a needle punching machine according to a conventional method. A slab urethane layer 3 and a backing fabric 5 are entangled and integrated into a laminate. Subsequently, the permeable skin material 2 is laid on the laminate through an adhesive layer 6 such as hommelt powder or hommelt web, and only the hommelt powder 8 and the adhesive layer 6 are melted. ℃ hot air (wind speed: 0.5 ~
(About 3.0 m / s). As a result, a surface material in which the skin material 2 and the slab urethane layer 3 are bonded and integrated on the front and back surfaces of the fibrous web layer 1 is obtained, and the activated carbon 4 is filled with hommelt powder 8 in the core 3 a of the slab urethane layer 3. A more firmly adhered and fixed product is obtained. Immediately after this, the surface is pressurized from the front side to a desired thickness by a pressurizing device such as a pressurizing plate cooled to 30 ° C or lower, and the skin is finally cooled from the back side with cold air of about 10 to 30 ° C. A sheet surface material having a deodorizing function, in which the material 2 is completely bonded and integrated with the fibrous web layer 1.

[0010]

As is clear from the above description, according to the present invention, the activated carbon is firmly fixed and can exhibit a sufficient deodorizing function without peeling off at all. In this case, the activated carbon can exhibit excellent handleability without peeling and scattering, and furthermore, the adhesive is uniformly dispersed throughout, so that an excellent feeling of use can be ensured without generating a feeling of foreign matter. Is what you can do. Therefore, the present invention greatly contributes to the development of industry as a surface material for vehicle seats that has eliminated the conventional problems.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a main part of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fiber web layer 2 Skin material 3 Slab urethane layer 3a Core 4 Activated carbon 5 Backing base cloth 7 Adhesive layer 8 Hommelt powder

 ────────────────────────────────────────────────── ─── Continued from the front page (72) Inventor Yoshio Yamada 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Motor Corporation F-term (reference) 4F100 AA37C AK07 AK41 AK46 AK51C AT00B BA03 BA04 BA10B BA10C BA10D CB03C DC11C DE01C DG01 DG04A DG06A DG12 DG15D DJ00C EC14C EC18 EC18C EH31C EJ42 GB33 JA04A JA14D JD20 JL01 JL12C

Claims (2)

[Claims] 1. A skin material (2) and a slab urethane layer on the front and back surfaces of a fibrous web layer (1) comprising a high melting point filament (1a).
Activated carbon (4) is placed in the core (3a) on the surface of the slab urethane layer (3) on the side in contact with the fibrous web layer (1) in the surface material for vehicle seats with (3) bonded and integrated with hommelt powder. A surface material for a vehicle seat, which is bonded and fixed according to (8). 2. The surface material for a vehicle seat according to claim 1, wherein a backing base fabric (5) having a high-density nonwoven fabric structure is laminated on the back side of the fibrous web layer (1).