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Interior material for motor vehicles

A technology for interior decoration and automobiles, applied to vehicle parts, transportation and packaging, and special positions of vehicles, etc., can solve problems such as through-hole clogging, achieve the effects of preventing global warming, excellent sound absorption, and low price

Active Publication Date: 2012-05-30
NAGOYA OIL CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the diameter of the through hole created by needling processing is determined by the thickness of the needle, it is almost impossible to open a through hole with a small diameter, especially a small through hole with a diameter of 0.1mm or less.
In addition, due to the elastic restoring force of the resin layer or the rubber layer, even if a through hole is formed, the through hole may be clogged.

Method used

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  • Interior material for motor vehicles
  • Interior material for motor vehicles
  • Interior material for motor vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0133] The weight per unit area made of polyester fiber is 120g / m 2 , a breathable surface material of needle-punched non-woven fabric with a thickness of 3mm.

[0134] Next, wood pulp composed of 50% by mass of softwood pulp and 50% by mass of broadleaf tree pulp is used as a raw material, and the beating degree reaches JIS P 8121-1995 4. Canadian standard with a disk refiner. The Canadian Standard Freeness 490ml (CSF) stipulated by the Canadian Standard Freeness is beaten, and then made through the usual papermaking process. The wrinkle rate is 25%, and the mass per unit area is 30g / m 2 , a paper material made of porous pulp fibers with an air resistance of 0.84kPa·s / m.

[0135] 3g / m on one side of the above paper material 2After coating hot-melt adhesive powder composed of polyester resin with a melting point of 150 °C and a particle size of 200 μm to 300 μm, the above-mentioned air-permeable surface material is laminated on the coated surface, and the paper is removed fr...

Embodiment 2

[0143] Except that the mass per unit area of ​​the formable felt in Example 1 is set to 150g / m 2 Other than that, the thickness is 26.0mm and the weight is 1206g / m by the same method 2 interior material (No.2).

[0144] In addition, the airflow resistance of the moldable felt at this time was 0.04 kPa·s / m. And in the same manner as in Example 1, (air-permeable surface material-paper material)-formable felt is sequentially laminated, which is laminated and bonded through heating-cooling, and its air resistance is 1.27kPa·s / m.

Embodiment 3

[0146] Except that the mass per unit area of ​​the formable felt in Example 1 is set to 100g / m 2 Other than that, the thickness is 26.0mm and the weight is 1156g / m by the same method 2 interior materials (No.3).

[0147] In addition, the airflow resistance of the moldable felt at this time was 0.03 kPa·s / m. And in the same manner as in Example 1, (air-permeable surface material-paper material)-formable felt is sequentially laminated, which is laminated and bonded through heating-cooling, and its air resistance is 1.26kPa·s / m.

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Abstract

Provided is an interior material for motor vehicles which is lightweight and has excellent sound absorption and sound insulation performance. The interior material for motor vehicles which is lightweight and has high sound absorption and sound insulation performance can be obtained by using a paper material (1) which includes at least 90% by mass of a porous pulp fiber and which has an airflow resistance ranging from 0.07 to 3.00 kPas / m. The porous pulp fiber has a beating degree ranging from 350 to 650 ml in terms of Canadian standard freeness (CSF) as provided for in JIS P 8121-1995, 4. Canadian Standard Freeness, and has multiple pores which open in the surface thereof.

Description

technical field [0001] The present invention mainly relates to an automobile interior material for flooring. Background technique [0002] As such automotive interior materials, air-permeable materials having predetermined air-flow resistance are generally used. For example, Patent Document 1 describes a sound-absorbing material with a mass per unit area of ​​150 g / m 2 ~800g / m 2 , the bulk density thickness is 0.01g / cm 3 ~0.2g / cm 3 non-woven fabric, and the air flow measured based on JIS L-1096 is 50cc / m 2 / sec or less skin materials are laminated, and Patent Document 2 describes a formable sound-absorbing material with a mass per unit area of ​​150 g / m 2 ~800g / m 2 , the bulk density thickness is 0.01g / cm 3 ~0.2g / cm 3 The non-woven fabric is laminated as a skin material, and a sound insulation kit is described in Patent Document 3, which has a total resistance Rt=500Nsm relative to the airflow -3 ~Rt=2500Nsm -3 fiber layer or fiber / foam composite layer. [0003] T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R13/08A47G27/02B32B5/22B60N3/04D21H27/40G10K11/16
CPCB60R13/08D21H27/00B60N3/048
Inventor 小川正则藤井慎
Owner NAGOYA OIL CHEM CO LTD
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