Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Laminate, method for producing laminate, and personal authentication medium

A manufacturing method and a technology for a laminated body, which are applied in chemical instruments and methods, lamination, and layered products, etc., can solve problems such as easy breakage, damage to the transfer layer, and increased risk of deformation.

Active Publication Date: 2018-09-28
TOPPAN PRINTING CO LTD
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the transfer layer made of such a material is also easily broken during the lamination and integration process, and the contained transfer layer is damaged to such an extent that it causes a problem in the function of the transfer layer, or there is a greater risk of deformation.
[0015] As described above, in the laminate containing the transfer layer and containing polycarbonate, the transfer property to the polycarbonate sheet is good, and it has sufficient resistance to high temperature and high pressure in the lamination and integration process. The transfer layer is very difficult

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Laminate, method for producing laminate, and personal authentication medium
  • Laminate, method for producing laminate, and personal authentication medium
  • Laminate, method for producing laminate, and personal authentication medium

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0064] Figure 1A It is a top view schematically showing the structure of the polycarbonate laminate according to the first embodiment before lamination and integration, Figure 1B It is a plan view schematically showing the configuration of the polycarbonate laminate according to the first embodiment in a state where the laminates are integrated. in addition, Figure 2A yes means Figure 1A The cutaway view of section A-A of Figure 2B yes means Figure 1B The sectional view of the BB section.

[0065] Figure 1A A state in which the transfer layer 4 is attached to the first polycarbonate layer 1 is shown. In a plan view opposite to the plane on which the transfer layer 4 extends, the transfer layer 4 consists of a region where the transparent reflective layer is not located, i.e. the first region 2, and a star-shaped region where the transparent reflective layer is located, i.e. the second region 3 constitute. In addition, it can be observed that the transfer layer 4 is...

no. 2 Embodiment approach

[0103] Figure 3A to Figure 3C It is a plan view schematically showing the configuration of the polycarbonate laminate according to the second embodiment in a state where the laminates are integrated. exist Figure 3A to Figure 3C Each of these shows a first cross-sectional region 9 having a first cross-section, a second cross-sectional region 10 having a second cross-section, and a third cross-sectional region 11 having a third cross-section.

[0104] exist Figure 3A In the illustrated polycarbonate laminate 8 , the third cross-sectional region 11 having the third cross-section has a star shape in plan view opposed to the plane in which the polycarbonate laminate 8 extends. exist Figure 3B In the illustrated polycarbonate laminate 8 , the third cross-sectional region 11 has a shape of "A", which is one of capital letters, in a plan view opposed to the plane in which the polycarbonate laminate 8 extends. exist Figure 3C In the illustrated polycarbonate laminate 8 , in ...

no. 3 Embodiment approach

[0108] Figure 4 It is a top view schematically showing the structure of the polycarbonate laminate according to the third embodiment in a state where the laminates are integrated. exist Figure 4 In the polycarbonate laminated body 16 shown in , a first cross-sectional region 9 having a first cross-section, a second cross-sectional region 10 having a second cross-section, and a third cross-sectional region 11 having a third cross-section are shown. Furthermore, the third cross-sectional area 11 having the third cross-section is constituted by a plurality of third cross-sectional elements.

[0109] Among the plurality of third cross-sectional elements, the first element 11A has a rod shape, two first elements 11A are arranged at a small interval, the second element 11B has a curved figure, the third element 11C has a dotted line shape, and the fourth element 11D has a point linear.

[0110] More specifically, the first element 11A has a rod shape extending along an elongati...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
widthaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

This laminate is provided with: a transfer layer having a plurality of layers that include a transparent reflective layer, in which the visible light refractive index of the transparent reflective layer is 2.0 or more, when seen in a plan view facing the plane in which the transfer layer extends, the transparent reflective layer is located in a portion of the transfer layer and at least a portionof the transparent reflective layer is located further to the inside than the contours of the transfer layer, and the portion of the transfer layer in which the transparent reflective layer is not located has a visible light refractive index of 1.4-1.8, inclusive; and a polycarbonate layer that encapsulates the transfer layer. The cross sections that run along the thickness direction of the laminate include a first cross section, in which the transfer layer is not present, a second cross section, in which a portion of the transfer layer in which the transparent reflective layer is not locatedis present, and a third cross section, in which a portion of the transfer layer in which the transparent reflective layer is located is present.

Description

technical field [0001] The present invention relates to a laminate containing a transfer layer and polycarbonate, a method for producing the laminate, and a personal authentication medium containing the laminate, and particularly to personal authentication media such as cards and passports. Background technique [0002] A laminated integrated product of a personal authentication medium such as a card or a passport, in other words, a laminated integrated product in which a transfer layer is included as a laminated body, compared with other systems in which the transfer layer is arranged on the surface of the medium, has It is very good at resisting chemicals, abrasion and direct alteration, in addition, it is difficult to disassemble by illegal means. [0003] Here, the production of a laminated integrated product including a transfer layer has conventionally included the following manufacturing steps. First, the transfer layer is generally attached to the first sheet by a t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/36B32B37/02B42D25/23B42D25/24B42D25/328B42D25/40B44C1/17
CPCB32B37/02B42D25/23B42D25/328B44C1/1729B32B37/04B42D25/41B42D25/36B42D25/324B42D25/351B42D25/455B42D25/46B42D25/47B32B37/182B32B2305/347B32B2425/00B32B2429/00B42D25/30B42D25/45B32B27/365B44C1/17B32B2307/422B32B2307/418B32B2307/416B32B2307/412B32B27/36
Inventor 南川直树
Owner TOPPAN PRINTING CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com