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

Coating solution for optical polyester film primer and preparation method thereof

A technology of optical polyester film and coating solution, applied in polyester coatings, chemical instruments and methods, polyurea/polyurethane coatings, etc. Insufficient strength, UV resistance, high temperature and high humidity resistance, and the adhesion of the functional layer cannot meet the requirements, etc., to achieve the effect of strong adhesion, good smoothness, and low haze

Active Publication Date: 2021-09-03
江苏三房巷薄膜股份有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Biaxially oriented polyester film has excellent physical properties, mechanical properties and optical properties, and is widely used in the fields of packaging, printing, aluminizing, compounding, electrical insulation, solar back materials, liquid crystal display, optical protection, heat insulation window film, etc. In the field of optics, polyester films are often used to make optical films such as brightness enhancement films, diffusion films, and composite films for LCD backlight modules. It is necessary to process optical functional layers such as brightness enhancement and diffusion on the surface. Under certain conditions, because of its low surface energy, the adhesion of the functional layer cannot meet the required use standards. It is necessary to carry out a chemical primer on the surface of the polyester film to enhance its surface adhesion. The chemical primer is used to treat the polyester film. In the process of biaxial stretching of ester film, the method of online coating chemical coating is used for production, and the coating is carried out between the longitudinal stretching process and the transverse stretching process, which needs to adapt to the production process of polyester film, while the existing Some coating solutions for chemical primer treatment will affect the optical properties such as haze and light transmittance of the polyester optical film, and its adhesion, UV resistance, high temperature and high humidity resistance are insufficient, which will affect the optical polymer produced. Properties of Ester Films

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
  • Coating solution for optical polyester film primer and preparation method thereof
  • Coating solution for optical polyester film primer and preparation method thereof
  • Coating solution for optical polyester film primer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Take an organic solvent, add a wetting agent and blend to prepare a wetting agent solution, and take 80% of the total amount of deionized water in the component, slowly add the wetting agent solution to the above deionized water and mix and stir evenly to obtain Solution A: take water-based polyester and add deionized water to dilute to obtain a diluted solution, stir solution A, slowly add UV-resistant modified polyurethane, stir well, then slowly add water-based polyurethane, stir well, then slowly add diluted solution, continue Stir to obtain solution B; stir solution B, take deionized water to dilute melamine resin, take organic solvent and deionized water to dilute epoxy resin, slowly add to solution B respectively, continue stirring to obtain solution C; stir solution C, take Prepare an aqueous dispersion with a silicon dioxide content of 40% from nanoparticles, and dilute it with deionized water. After stirring evenly, slowly add it to solution C. After stirring e...

Embodiment 2

[0047] Take an organic solvent, add a wetting agent and blend to prepare a wetting agent solution, and take 80% of the total amount of deionized water in the component, slowly add the wetting agent solution to the above deionized water and mix and stir evenly to obtain Solution A: take water-based polyester and add deionized water to dilute to obtain a diluted solution, stir solution A, slowly add UV-resistant modified polyurethane, stir well, then slowly add water-based polyurethane, stir well, then slowly add diluted solution, continue Stir to obtain solution B; stir solution B, take deionized water to dilute melamine resin, take organic solvent and deionized water to dilute epoxy resin, slowly add to solution B respectively, continue stirring to obtain solution C; stir solution C, take Prepare an aqueous dispersion with a silicon dioxide content of 40% from nanoparticles, and dilute it with deionized water. After stirring evenly, slowly add it to solution C. After stirring e...

Embodiment 3

[0050] Take an organic solvent, add a wetting agent and blend to prepare a wetting agent solution, and take 65% of the total amount of deionized water in the component, slowly add the wetting agent solution to the above deionized water and mix and stir evenly to obtain Solution A: take water-based polyester and add deionized water to dilute to obtain a diluted solution, stir solution A, slowly add UV-resistant modified polyurethane, stir well, then slowly add water-based polyurethane, stir well, then slowly add diluted solution, continue Stir to obtain solution B; stir solution B, take deionized water to dilute melamine resin, take organic solvent and deionized water to dilute epoxy resin, slowly add to solution B respectively, continue stirring to obtain solution C; stir solution C, take Prepare an aqueous dispersion with a silicon dioxide content of 40% from nanoparticles, and dilute it with deionized water. After stirring evenly, slowly add it to solution C. After stirring e...

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
hydroxyl valueaaaaaaaaaa
particle diameteraaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a coating liquid for optical polyester film primer and a preparation method thereof, which comprises the following components by weight: 3-15% water-based polyurethane, 1-5% water-based polyester, 0.1-0.5% melamine resin, 0.1 ~0.5% epoxy resin, 0.3~1% modified polyurethane, 0.5~1.5% organic solvent, 0.05~0.3% wetting agent, 0.1~1% nano particles, 0.01~0.1% pH regulator, the balance is deionized water. The present invention prepares the coating liquid through the setting of the components and their proportions, preparation process and parameters, and the polyester film coated with the water-based coating liquid of the present invention has low haze, high light transmittance and good smoothness , has strong adhesion to optical functional coatings, and is suitable for manufacturing brightening and diffusion optical films that require strict adhesion. The polyester film is processed by an online primer to obtain an optical polyester film, which can strengthen The surface adhesion of the film is suitable for the production and processing of brightness enhancement film, diffusion film and composite film, and is suitable for wide promotion and use.

Description

technical field [0001] The invention relates to the field of a coating liquid for a bottom coating of a hardened film, in particular to a coating liquid for an optical polyester film bottom coating and a preparation method thereof. Background technique [0002] Biaxially oriented polyester film has excellent physical properties, mechanical properties and optical properties, and is widely used in the fields of packaging, printing, aluminizing, compounding, electrical insulation, solar back materials, liquid crystal display, optical protection, heat insulation window film, etc. In the field of optics, polyester films are often used to make optical films such as brightness enhancement films, diffusion films, and composite films for LCD backlight modules. It is necessary to process optical functional layers such as brightness enhancement and diffusion on the surface. Under certain conditions, because of its low surface energy, the adhesion of the functional layer cannot meet the...

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): C09D175/04C09D167/02C09D161/28C09D163/00C09D175/06C09D171/02C09D7/61C08J5/18B32B33/00B32B27/36B32B27/06B29D7/01C08L67/00
CPCB29D7/01B32B27/08B32B27/36B32B33/00C08J5/18C08J2367/00C08K2003/2241C08K2201/011C08L2201/08C08L2203/16C08L2205/02C08L2205/035C09D5/18C09D161/28C09D163/00C09D167/02C09D175/04C09D7/61C08L67/02C08L61/28C08L63/00C08L75/06C08L71/02C08K3/22C08K3/36
Inventor 潘世新张志宏吕军锋卞伟冬卞小通
Owner 江苏三房巷薄膜股份有限公司
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