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

A flexible multi-band light-absorbing bopet film and its preparation method

A multi-band, light-absorbing technology, applied in chemical instruments and methods, flat products, and other household appliances, can solve the problem of unprotected filter film surface, etc., and achieve unaffected optical properties, good hardness, and optical absorption properties stable effect

Active Publication Date: 2020-11-03
ZHEJIANG HESHUN NEW MATERIAL CO LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a flexible multi-band light-absorbing BOPET film and its preparation method, aiming to solve the shortcomings of the prior art that the filter film is mainly single-band and the surface of the filter film is unprotected

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
  • A flexible multi-band light-absorbing bopet film and its preparation method
  • A flexible multi-band light-absorbing bopet film and its preparation method
  • A flexible multi-band light-absorbing bopet film and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, and the following examples are only illustrative, not limiting the present invention.

[0034] Such as figure 1 As shown, a kind of flexible multi-band light-absorbing BOPET film provided by the present invention is a CBABC five-layer structure film, wherein layer A is the ultraviolet and infrared absorbing layer 3, layer B is the visible light absorbing layer 2, and layer C is Surface hardening layer 1;

[0035] The layer A includes 96.5%-97.5% by weight of optical-grade transparent PET slices, 2%-2.5% of ultraviolet-absorbing masterbatches, and 0.5%-1% of infrared-absorbing masterbatches;

[0036] The B layer includes 95% to 97% by weight of optical-grade transparent PET slices and 3% to 5% of visible light absorption masterbatches;

[0037] The C layer is coated with TiO on the surface 2 hardened layer.

[0038] The film has the function o...

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
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a flexible multi-waveband light absorbing BOPET film and a preparation method thereof. The film is a CBABC type five-layer structure film, wherein the A layer is an ultraviolet and infrared absorbing layer, the B layer is a visible light absorbing layer, the C layer is a surface hardening layer, the total thickness is 80-120 [mu]m, the raw materials of the layer A comprise 96.5-97.5% by weight of optical-grade transparent PET slices, 2-2.5% by weight of ultraviolet absorbing masterbatch, and 0.5-1% by weight of infrared absorbing masterbatch, the raw materials of the B layer comprise 95-97% by weight of optical-grade transparent PET slices and 3-5% by weight of visible light absorbing masterbatch, the C layer is plated with TiO2 to achieve the hardening effect on the surface of the film, the A layer and the B layer are prepared through a three-layer co-extrusion biaxial stretching method, and the C layer is prepared through an electron beam evaporation method. The flexible multi-waveband light absorbing BOPET film of the present invention has characteristics of high flatness, high hardness and strong light absorption.

Description

technical field [0001] The invention relates to the field of biaxially stretched polyester film (BOPET), in particular to a flexible multi-band light-absorbing BOPET film and a preparation method thereof. Background technique [0002] In recent years, optical thin films have developed rapidly, and the demand for optical thin films with different characteristics is increasing in various fields. Absorbing optical films have always been an important branch of optical film research. They are mainly used to filter specific light bands to meet the needs of night vision compatibility, light sensors, and optical radiation protection. Traditional absorbing filter films are mainly single-band, and only have absorption characteristics in one light region of ultraviolet light, visible light or infrared light, and generally only have a single-layer film structure, the surface is not protected, and it is easy to scratch and affect the optics. The use performance of the film, for example,...

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 Patents(China)
IPC IPC(8): B32B27/36B32B27/06B32B27/18B32B38/00B29D7/01
CPCB29D7/01B32B27/08B32B27/18B32B27/36B32B38/00B32B38/0012B32B2038/0028B32B2250/40B32B2307/40B32B2307/584
Inventor 范和强陈正坚吴锡清赵言松杨凯元方王凯徐迪均肖升
Owner ZHEJIANG HESHUN NEW MATERIAL 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