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Laminated film and molded object

A technology of laminated film and resin layer, applied in the direction of layered products, synthetic resin layered products, household components, etc., can solve the problems of pitch black and insufficient image clarity, achieve high clarity, prevent damage and adhesion effect of things

Inactive Publication Date: 2009-12-23
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above technique, the glossiness is slightly improved, but the sharpness of the image reflected on the surface of the sheet is not sufficient, and it is impossible to express a jet black with the same depth and gloss as the appearance of a piano.

Method used

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  • Laminated film and molded object
  • Laminated film and molded object

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～3

[0067] Resin A and resin B were prepared as two kinds of resins. As the resin A, a polyethylene terephthalate (PET) obtained by finely dispersing 2.5 wt % of Mitsubishi Chemical Carbon Black HCF#2600 and having an intrinsic viscosity of 0.63 was used. In addition, as the resin B, polyethylene terephthalate having an intrinsic viscosity of 0.65 was used. Resin A and resin B were vacuum-dried at a temperature of 180° C. for 3 hours, respectively, and then supplied to each single-screw extruder. In addition, the melting point of PET is 256 degreeC.

[0068] Each was made into a molten state at 280° C. in an extruder, and after passing through a gear pump and a filter, they were merged using a feed head of two layers. It should be noted that, regarding the lamination ratio, the flow rate of each resin in each example was adjusted so that the layer thicknesses shown in Table 1 were obtained. The thus-obtained molten laminate composed of two layers was formed into a sheet using a d...

Embodiment 4～6

[0072] Resin A and resin B were prepared as two kinds of resins. As the resin A, a polyethylene terephthalate (PET) obtained by finely dispersing 2.5 wt % of Mitsubishi Chemical Carbon Black HCF#2600 and having an intrinsic viscosity of 0.63 was used. In addition, as the resin B, polyethylene naphthalate having an intrinsic viscosity of 0.68 was used. Resin A and resin B were each vacuum-dried at a temperature of 180° C. for 3 hours, and then supplied to each single-screw extruder. In addition, the melting point of PEN is 263 degreeC.

[0073] Each was made into a molten state at 280° C. in an extruder, and after passing through a gear pump and a filter, they were merged by a feed head of two layers. In addition, the flow rate of each resin in each implementation was adjusted so that it may become the layer thickness shown in Table 1 about lamination ratio. The molten laminate composed of two layers obtained above was molded into a sheet, and then quenched and solidified by...

Embodiment 7～8

[0077] A film was formed in the same manner as in Example 1 except that the content of carbon black in resin A was changed as shown in Table 1. The obtained results are shown in Table 1.

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Abstract

A pitch-black decorative film in the surface of which highly clear images are reflected and which has a deep and glossy appearance like pianos. The laminated film is characterized by comprising at least one resin layer (layer (A)) containing a black ingredient and at least one resin layer (layer (B)) which is substantially colorless and transparent, the layer (A) having a thickness of 20-300 [mu]m and the layer (B) having a thickness of 0.5-200 [mu]m. The film is further characterized in that the layer (A) adjoins the layer (B) and the surface on at least one side has a surface roughness Ra of 1-25 nm.

Description

technical field [0001] The present invention relates to a laminated film and a molded body using the same. Background technique [0002] Decoration and molding using films are used in various applications such as mobile phones, personal computers, automobiles, televisions, home appliances, and pachinko. Among the above-mentioned applications, white, metallic, and black decorations are favored, and especially recently, in order to pursue a sense of luxury, there is a demand for a jet-black decorative film as deep as the appearance of a piano. [0003] As a black sheet or container, several proposals were studied. For example, Patent Document 1 proposes a multilayer sheet and a multilayer container composed of a covering polyester resin layer, an adhesive resin layer, and a polyolefin resin layer containing a light-shielding pigment. [0004] In addition, Patent Document 2 proposes a multilayer container formed of a polyester resin layer, an adhesive resin layer, a covering ...

Claims

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Application Information

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IPC IPC(8): B32B27/00B29C55/12B32B27/36B29K67/00B29L7/00B29L9/00
CPCB29C55/023B29K2023/00B29C55/143B29C55/12B32B27/36B29K2995/002B32B27/08B32B27/16B32B27/18B32B27/20B32B27/281B32B27/283B32B27/302B32B27/304B32B27/308B32B27/32B32B27/322B32B27/34B32B27/365B32B27/38B32B27/40B32B27/42B32B2250/24B32B2264/02B32B2264/10B32B2264/108B32B2270/00B32B2307/306B32B2307/40B32B2307/4026B32B2307/406B32B2307/412B32B2307/416B32B2307/418B32B2307/518B32B2307/538B32B2307/554B32B2307/584B32B2307/702B32B2419/00B32B2509/00B32B2605/08Y10T428/24355Y10T428/24942B32B27/00B29K2067/00B29L2007/00
Inventor 长田俊一园田和卫松原德文
Owner TORAY IND INC
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