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Laminate, decorative sheet, method for producing laminate, method for producing molded body, and molded body

A manufacturing method and technology of laminated body, applied in decorations, chemical instruments and methods, coatings, etc., can solve the problems of incomplete transfer, transfer omission, etc., and achieve the effect of fewer processes

Inactive Publication Date: 2019-09-27
IDEMITSU UNITECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In the embossing technology using a transfer roller, there is a problem in the transfer rate to the decorative sheet, and there is a problem of incomplete transfer and transfer omission.

Method used

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  • Laminate, decorative sheet, method for producing laminate, method for producing molded body, and molded body
  • Laminate, decorative sheet, method for producing laminate, method for producing molded body, and molded body
  • Laminate, decorative sheet, method for producing laminate, method for producing molded body, and molded body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0262] [Manufacture of laminates and decorative sheets]

[0263] use Figure 4 The manufacturing apparatus shown produces a laminated body. Figure 4 The production apparatus shown is equipped with the T die head 52 of an extruder, the 1st cooling roll 53, the 2nd cooling roll 54, the 3rd cooling roll 55, the 4th cooling roll 56, and the metal endless belt 57.

[0264]The operation of this device will be described. The materials constituting each layer of the laminate are melted and extruded from the T-die 52 by each extruder (not shown), and each molten resin extruded from the T-die 52 is first The cooling roll 53 is sandwiched between the metal endless belt 57 and the fourth cooling roll 56 to obtain a laminate of molten resin. In this state, the molten resin is rapidly cooled while being pressure-bonded by the first and fourth cooling rolls 53 and 56 to obtain a laminated body 51 . Next, the laminated body 51 is sandwiched between the metal endless belt 57 and the fourt...

Embodiment 2

[0349] In the extruder for the second resin layer, high-impact polystyrene ("H0103" manufactured by PS Japan Co., Ltd., melt flow index: 2.6 g / 10 minutes) was used instead of high-impact polystyrene "475D". ), except that, a laminated body, a decorative sheet, and a molded body were produced and evaluated in the same manner as in Example 1. The results are shown in Table 1. It was confirmed that the second resin layer of the obtained laminate had a sea-island structure when observed with a transmission electron microscope (TEM). In addition, the surface of the obtained decorative sheet has a matte-toned appearance. Observation images of the surface shape of the decorative sheet obtained with a 3D laser microscope are as follows: Figure 7 shown. Figure 7 The unit of the numerical value in is μm.

[0350] The above-mentioned impact-resistant polystyrene has a sea-island structure in which a dispersed phase containing polybutadiene (second thermoplastic resin) is dispersed ...

Embodiment 3

[0357] [Manufacture and evaluation of moldings]

[0358] The surface temperature of both surfaces of the laminate obtained in Example 1 was heated to 160° C. with an infrared heater, and vacuum pressure forming was performed to obtain a shaped laminate (shaped laminate). The compressed air pressure is set so as to reach 0.3 MPa.

[0359] In such a manner that the first resin layer faces the side where the molding resin described later is supplied, the shaped laminate was loaded into a mold (a flat mold, 65 mm in width x 150 mm in length x 2 mm in thickness, one side gate, length center of the center of the center of the edge) and then clamped, using an injection molding machine ("IS80EPN" manufactured by Toshiba Machine Co., Ltd.), the molding resin ("PrimePolypro J705UG" manufactured by Prime Polymer, melt flow index: 9.0g / 10min, block poly Propylene) was supplied into the mold, and the shaped laminate was integrated with the molding resin to manufacture a molded body (inser...

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Abstract

A laminate which comprises a first resin layer and a second resin layer, and wherein: a resin constituting the first resin layer and a resin constituting the second resin layer are incompatible with each other; the first resin layer contains a polyolefin; the second resin layer contains a first thermoplastic resin and a second thermoplastic resin; and the first thermoplastic resin and the second thermoplastic resin are incompatible with each other, while having different solidification temperatures.

Description

technical field [0001] The present invention relates to a laminate, a decorative sheet, a method for producing the laminate, a method for producing a molded article, and a molded article. Background technique [0002] Insert molding and in-mold molding are used as techniques for decorating moldings such as vehicle interior materials and home appliance casings. These methods can produce a decorated molded body by integrally molding a decorative sheet for decoration with a casing (resin injection). [0003] In addition, a technique of imparting designability to a molded article using a decorative sheet provided with a concave-convex shape by embossing or the like is also employed. This concave-convex shape is imparted, for example, by bringing a transfer roll (decal roll) engraved with a concave-convex pattern into contact with a decorative sheet (molten resin). [0004] Patent Document 1 discloses a method for producing a decorative molded article using a protective film-at...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B29C45/14B29C48/18B29C51/12B29C51/14B32B27/00B29C48/07B29C48/21
CPCB32B27/00B32B27/08B29C51/12B29C45/14B29C51/14B29C45/14811B29C45/1418B29C45/14836B29K2023/12B29K2025/06B29K2009/06B29C51/10B29K2705/02B29K2705/14B29K2705/10B29K2023/00B29C51/08B29C48/21B29C48/023B29C48/07B32B2250/04B32B7/027B32B2307/54B32B7/06B32B27/365B32B27/302B32B2255/205B32B2451/00B32B2255/20B32B27/40B32B27/34B32B27/306B32B2250/24B32B2307/75B32B2307/748B32B2255/10B32B27/308B32B27/32B32B2307/538B32B3/30B29C48/18B32B2398/20
Inventor 松浦辰郎近藤要
Owner IDEMITSU UNITECH CO LTD
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