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Multilayer film for laser printing, multilayer body for electronic passports, multilayer body for plastic cards, film for plastic cards, plastic card, data sheet for electronic passports, and electronic passport

A technology for multilayer films and plastic cards, which is applied to the fields of multilayer films for laser printing, laminates for electronic passports, laminates for plastic cards, films for plastic cards, plastic cards, data sheets for electronic passports, and electronic passports , can solve the problems of polycarbonate resin deterioration, difficult to use for a long time, etc., and achieve the effect of suppressing equipment pollution

Active Publication Date: 2021-07-23
MITSUBISHI CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, as a base material for passports to be laser printed, polycarbonate resins are generally used from the viewpoint of heat resistance and impact resistance, but polycarbonate resins are easily degraded by ultraviolet rays, so depending on the storage and usage conditions of the passports, and may be difficult to use in the long term

Method used

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  • Multilayer film for laser printing, multilayer body for electronic passports, multilayer body for plastic cards, film for plastic cards, plastic card, data sheet for electronic passports, and electronic passport
  • Multilayer film for laser printing, multilayer body for electronic passports, multilayer body for plastic cards, film for plastic cards, plastic card, data sheet for electronic passports, and electronic passport
  • Multilayer film for laser printing, multilayer body for electronic passports, multilayer body for plastic cards, film for plastic cards, plastic card, data sheet for electronic passports, and electronic passport

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0165] As layer (X), dry blend (A)-1, (B)-1 and (D)-1 at a mass ratio of 69.955:30:0.045, and use an extruder to produce two types of three-layer multi-manifold The nozzle was extruded at 240° C. as the first layer and the third layer (both outer layers).

[0166] In addition, at the same time as the layer (Y), (A)-1 and (C)-1 were compounded at a mass ratio of 99.75:0.25. For the obtained compound, an extruder was used, and the same nozzle was used as the second layer. 2 layers (middle layer) were extruded at 240°C. In addition, at this time, the discharge amount of the molten resin was adjusted so that the thickness of each layer was 8 / 34 / 8 (μm) for the first layer / second layer / third layer. Next, the coextruded sheet was quenched with a casting roll at about 120° C. to obtain a multilayer film. Table 1 shows the evaluation results of the obtained multilayer film.

Embodiment 2

[0168] In Example 1, the mixing mass ratio of (A)-1, (B)-1 and (D)-1 of the first layer and the third layer was 93.955:6:0.045, and in addition, the same as in Example 1 A multilayer film was fabricated and evaluated in the same manner. The results are shown in Table 1.

Embodiment 3

[0170] In Example 1, the mixing mass ratio of (A)-1, (B)-1, and (D)-1 of the first layer and the third layer was 96.955:3:0.045, and in addition, the same as in Example 1 A multilayer film was fabricated and evaluated in the same manner. The results are shown in Table 1.

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Abstract

The present invention provides a multilayer film for laser printing, which is characterized by having: at least one layer (X) that serves as an outermost layer, while being formed from a resin composition which contains (A) a bisphenol polycarbonate and (B) a polyester that contains a specific compound as a diol component, and which contains the specific compound in an amount of 0.1-20% by mass; and at least one layer (Y) that is formed from a resin composition which contains (A) a bisphenol polycarbonate and (C) a laser light energy absorbent. Consequently, the present invention provides a multilayer film for laser printing, which does not contaminate equipment such as a T-die and a roll during melt extrusion molding, and which has good laser printing performance, while being prevented from deterioration of the base material and color fading of laser print of information even during a long period of use.

Description

technical field [0001] This application relates to a multilayer film for laser printing used in ID cards, electronic passports, etc., a laminate for electronic passports and a laminate for plastic cards including the film, a film for plastic cards, a plastic card including the film, and A data sheet for an electronic passport and an electronic passport having the same. Background technique [0002] With the progress of international exchanges, the movement of human resources is also active, and the importance of passports that record personal information has increased as a means of identifying individuals and identifying them. In particular, a passport serves as a so-called identity card (identification card, etc.) issued by a country that is both a public institution and reliable. [0003] Especially after the simultaneous terrorist incidents in September 2001, the International Civil Aviation Organization (ICAO, International Civil Aviation Organization), a professional o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/20B32B27/36B42D25/23B42D25/24B42D25/41
CPCB42D25/24B42D25/41C08K3/22C08K2003/221C08L69/00B42D25/36C08G63/6856C08G63/193B32B5/147B32B7/023B32B27/08B32B27/16B32B27/20B32B27/36B32B27/365B32B27/302B32B27/304B32B27/34B32B27/308B32B27/306B32B27/40B32B27/281B32B27/325B32B27/285B32B27/286B32B2250/02B32B2250/24B32B2270/00B32B2307/4026B32B2307/412B32B2307/418B32B2307/422B32B2554/00B32B23/10B32B5/02B32B2262/0261B32B2307/732B32B2274/00B32B23/08B32B27/32B32B2425/00B32B2264/104B32B2262/0276B32B27/12B32B2250/05B32B27/288B32B2264/102C08L67/02B42D25/23B42D25/45B32B7/025
Inventor 八田全裕田中一也
Owner MITSUBISHI CHEM CORP
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