Functional sheet

A functional sheet technology, applied in the direction of instruments, chemical instruments and methods, optics, etc., can solve problems such as poor vision, achieve uniform bonding, prevent defects, and suppress cracks

Inactive Publication Date: 2018-04-17
KONICA MINOLTA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Titanium oxide, which is a material that prevents the absorption of heat rays, may be used for the pigment, but since titanium oxide pigment is not black, when it is used as a material for the instrument panel, there is a possibility that the front view will be deteriorated due to diffuse reflection. The problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0222] [Production of functional sheet 101]

[0223] The functional sheet shown in Fig. 1(A) was produced in the following steps.

[0224] Using biaxially stretched polypropylene (Oji F-Tex Co., Ltd. E-201F, thickness 50 μm (in Table 1, PP)) as the first release film, the infrared shielding layer coating composition was prepared according to the following formulation , using a dispensing coater for coating. For coating, the layer thickness was adjusted so that the optical density was 0.12 and the coating was performed. The layer thickness was adjusted so that the dry layer thickness was 3.0 μm, and the coating was performed.

[0225]

[0226]

[0227]

[0228] Next, as an adhesive layer, the coating liquid formulated below was coated on the above-mentioned functional layer. Coating was performed by adjusting the layer thickness so that the dry layer thickness would be 3.0 μm.

[0229]

[0230]

[0231] Finally, use Nakamoto Packs Co., Ltd. NS SEPARATOR XA (セパレ...

Embodiment 2

[0293] [Production of functional sheet 201]

[0294] In preparation of the functional sheet 102, the functional sheet 201 of the comparative example was produced in the same manner except that the second release film was not laminated.

[0295] [Production of functional sheet 202]

[0296] In the production of the functional sheet 102, the aging temperature was adjusted, and the peeling force of the first release film and the second release film were both adjusted to 70mN / 50mm. In addition, the functional sheet of the comparative example was produced in the same manner. 202.

[0297] [Production of functional sheet 203]

[0298] In the production of the functional sheet 102, the aging temperature was adjusted, and the peeling force of the first release film and the second release film were both adjusted to 2400mN / 50mm. In addition, the functional sheet of the comparative example was produced in the same manner. 203.

[0299] [Production of functional sheet 204]

[0300] In ...

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Abstract

The present invention addresses the problem of providing a functional sheet that can be easily attached to even a three-dimensional shape such as a painted surface of a building or an exterior, interior, etc. of a vehicle or the like and that can effectively block ultraviolet and infrared rays and retain the property of blocking ultraviolet and infrared rays for a long period without becoming uneven, deficiency, or cracking. The functional sheet according to the present invention has at least a property of blocking electromagnetic waves and is characterized in that one or more functional layers and adhesive layers including at least an electromagnetic wave blocking layer are sandwiched between a first release film and a second release film of which releasability is different from that of the adjacent layers.

Description

technical field [0001] The present invention relates to a functional sheet. Specifically, the present invention relates to a three-dimensional functional sheet that can be easily attached to a painted surface of a building or to an exterior surface or an interior surface of a vehicle, etc. It shields ultraviolet rays or infrared rays without causing unevenness, defects, and cracks, and can maintain the shielding properties of ultraviolet rays or infrared rays for a long period of time. Background technique [0002] Forming a coating film containing an ultraviolet shielding agent on the surface of window glass of a building or plastic, glass of a car, etc., thereby inhibiting the penetration of ultraviolet rays into the interior of the room or car, thereby preventing sunburn and discoloration of the article, and protecting The human body is protected from harmful UV rays. In addition, the formation of a coating film containing an infrared shielding agent has been performed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/00B32B7/02B32B7/06G02B5/22
CPCB32B7/06B32B27/00G02B5/22
Inventor 西尾昌二小山博和
Owner KONICA MINOLTA INC
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