JPH0667022U - Laminated sheet - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a laminated sheet which is excellent in heat resistance and pressure resistance and is optimal for stamping. [Structure] A sheet A was constructed by sandwiching a PP foam layer 2 with a skin layer 1 made of PVC and a back layer 3 made of thermoplastic olefin.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a laminated sheet having a PP foam layer, and more particularly to a laminated sheet formed by stamping to form a desired product.

[0002]

[Prior art]

 BACKGROUND ART Conventionally, a vehicle interior material such as an automobile console or a pillar is formed into a desired shape by stamping a laminated sheet having a two-layer structure of a skin layer made of PVC or the like and a PP foam layer. It was

[0003]

[Problems to be solved by the device]

 However, the conventional laminated sheet described above has a problem in that when stamping, the PP foam cannot be endured against heat and pressing pressure and is melted, or it is gouged or scraped, resulting in a problem in product completion. It was what was there.

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to provide a laminated sheet which is excellent in heat resistance and pressure resistance and is optimum for stamping. Is.

[0005]

[Means for Solving the Problems]

 To achieve the above object, the technical means of the present invention is to construct a PP foam layer by sandwiching a skin layer made of a desired material and an olefinic backing layer.

The olefin-based backing layer is made of thermoplastic olefin.

[0007] 50% modulus of the thermoplastic olefin, is that was 40~100kg ^f / cm ^2.

[0008] The compressive hardness of the PP foam layer is a ^{0.5kg f / cm 2 ~0.8kg f /} cm 2 Toshitako.

[0009]

[Action]

 By the above technical means, the olefin-based backing layer provided on the inner surface side of the PP foam layer protects the PP foam layer from heat and pressing pressure during stamping.

[0010]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

The laminated sheet A of the present invention is a three-layered sheet comprising a skin layer 1, a foam layer 2 and a back skin layer 3, and the skin layer 1 is made of an olefin such as TPO (thermoplastic olefin) or a desired PVC. The material is formed to a desired thickness, and the foam layer 2 is bonded and integrally provided on the inner surface side 1a. It should be noted that the outer surface side 1b of the skin layer 1 may be provided with desired wrinkles, squeezing (embossing), printing, surface treatment (for improving function or appearance), or a combination thereof, which may be appropriately handled. It is possible.

The foam layer 2 is formed of a PP foam layer foamed to a desired ratio by a conventionally known method to a desired thickness, and preferably has a compression hardness of 0.5 kg ^f / cm ^{2 to} 0.8 kg. ^f / cm ² (according to JIS K-6767). Then, the back skin layer 3 is heat-fused and integrally provided on the inner surface side 2a of the foam layer 2.

[0013] Urakawaso 3, which are formed to a desired thickness using a olefin-based material thermoplastic olefins such as, preferably, 50% modulus (room temperature) is 40~ 100kg ^f / cm ^2, The oil It may be either additive or non-oil-additive, and is not limited in any way, but from the viewpoint of adhesiveness, the non-oil-additive type is preferred.

Then, a three-layer laminated sheet A is formed by sandwiching the PP foam layer between the outer skin layer 1 and the back skin layer 3. The joining of the layers 1, 2 and 3 may be the same as in the conventionally known laminated sheet molding.

Specific examples will be described below.

Skin layer 1: 0.6 mm thick PVC sheet Foam material 2: 2.5 mm thick PP foam sheet (25 times foam) Foam compression hardness about 0.6 kg ^f / cm ² (JIS K-6767) Back skin layer 3 A laminated sheet A is formed from a thermoplastic olefin sheet having a thickness of 0.2 mm (50% modulus 60 kg ^f / cm ² ), and the sheet A is stamped with a desired mold to form a desired product (interior material for vehicle). .

Table 1 below shows the results of checking the presence or absence of peeling, texture, pockmark, etc., in the stamping of the sheet A of this example, in comparison with the comparative example. (Evaluation: Bad x <△ <○ Good)

[0018]

[Table 1]

The above example is merely an example, and the present invention is not limited thereto. The thickness of the skin layer 1, the foam layer 2 and the back skin layer 3, the material of the skin layer 1 or the foaming of the foam layer 2 is not limited thereto. The magnification and the like can be arbitrarily changed and can be appropriately changed.

[0020]

[Effect of device]

 According to the present invention, as described above, the PP foam layer is a laminated sheet formed by sandwiching a skin layer made of a desired material and an olefin-based backing layer. Since the backing layer of the system protects the PP foam layer from heat and pressing pressure during stamping, it has excellent heat resistance and pressure resistance. As a result, when forming a desired product by stamping, the heat, press thickness, etc. It is possible to provide a laminated sheet which is most suitable for stamping without the risk that the PP foam will be melted, gouged or scraped.

[Brief description of drawings]

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

[Explanation of symbols]

 A: Sheet 1: Skin layer 2: Foam layer 3: Back skin layer

Claims (4)

[Scope of utility model registration request] 1. A laminated sheet comprising a PP foam layer sandwiched between a skin layer made of a desired material and an olefinic backing layer. 2. The laminated sheet according to claim 1, wherein the olefin-based backing layer is a thermoplastic olefin. 3. A laminated sheet according to claim 1, wherein 50% modulus of thermoplastic olefin characterized in that it is a 40~100kg ^f / cm ^2. 4. The compression hardness of the PP foam layer is 0.5 kg ^f /
The laminated sheet according to claim 1 or 3, wherein the laminated sheet has a size of cm ^{2 to} 0.8 kg ^f / cm ² .