Method for preparing structural-color contact lens

A contact lens and structural color technology, applied in glasses/goggles, applications, instruments, etc., can solve the problems of unsatisfactory safety, sanitation, beautiful appearance, lack of preparation method of structural color contact lenses, etc., achieve bright colors, easy to use Large-scale production and low cost effect

Inactive Publication Date: 2011-09-21
SOUTHEAST UNIV
View PDF3 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a preparation method of structural color contact lenses, which solves the lack of preparation methods of str

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
  • Method for preparing structural-color contact lens
  • Method for preparing structural-color contact lens
  • Method for preparing structural-color contact lens

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0032] Example 1 Preparation of Structural Color Contact Lenses

[0033]

[0034] like figure 1 The steps shown were carried out to prepare structural color contact lenses, and the following are specific descriptions:

[0035] 1. Preparation of structural color colloidal solution:

[0036] Monodispersed silica colloidal nanoparticles with a diameter of 200 nm were added to a mixed solution of hydroxyethyl methacrylate (HEMA) and ethylene glycol dimethacrylate (EGDMA) (HEMA / EGDMA=20:1, mol ratio), adjust the mass percentage of silica to 60%, ultrasonically disperse, until the colloidal particle solution produces a bright and bright structural color; add the initiator azoisobutyric cyanide (0.1%, mass volume ratio) to this solution. , after fully mixing, pass through nitrogen for 5 min, and seal the structural color colloidal solution for use;

[0037] 2. Curing treatment of the structural color solution in the mold:

[0038] Add 200 microliters of the structural color co...

Example Embodiment

[0041] Example 2 Preparation of Structural Color Contact Lenses

[0042]

[0043] 1. Preparation of structural color colloidal solution:

[0044] Monodispersed silica colloidal nanoparticles with a diameter of 200 nanometers were added to the mixed solution of siloxane methacrylate (SMA) and ethylene glycol dimethacrylate (EGDMA), and the mass percentage of silica was adjusted to be 40%, ultrasonically dispersed, until the colloidal particle solution produces a bright and bright structural color; add the initiator azoisodibutyl cyanide (0.1%, mass-volume ratio) to this solution, mix well, pass nitrogen for 5min, seal Structural color colloid solution for use;

[0045] 2. Curing treatment of the structural color solution in the mold:

[0046] Add 200 microliters of structural color colloid solution into the mold for the preparation of contact lenses, let stand for 20 minutes, react in a 40°C water bath for 22 hours, heat up to a vacuum drying oven at 120°C for 9 hours, and...

Example Embodiment

[0049] Example 3 Preparation of Structural Color Contact Lenses

[0050]

[0051] 1. Preparation of structural color colloidal solution:

[0052] Monodisperse polymethyl methacrylate colloidal nanoparticles with a diameter of 180 nm were added to the mixed solution of hydroxyethyl methacrylate (HEMA) and ethylene glycol dimethacrylate (EGDMA) (HEMA / EGDMA=20: 1, molar ratio), adjust the mass percentage of polymethyl methacrylate to 50%, and ultrasonically disperse until the colloidal particle solution produces a bright and bright structural color; add the initiator azoisobutyl cyanide (0.1 %, mass-volume ratio), after fully mixing, pass through nitrogen for 5 min, and seal the structural color colloid solution for later use;

[0053] 2. Curing treatment of the structural color solution in the mold:

[0054] Add 200 microliters of the structural color colloidal solution into the mold for contact lens preparation, let it stand for 20 minutes, and irradiate it with a high-pre...

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

No PUM Login to view more

Abstract

The invention discloses a method for preparing a structural-color contact lens. The contact lens contains a hydrogel which is formed by curing a structural-color colloid crystal solution polymer with a uniform single color or mixed colors. The method comprises the following steps: firstly, preparing a structural-color colloidal solution; curing the solution in a mould; and hydrating the cured solution till the expansibility of the hydrogel is stable and constant, thereby acquiring the structural-color contact lens. The invention aims to provide a structural-color contact lens and a manufacturing method thereof. The method is low in manufacturing cost and is suitable for mass production. The prepared contact lens is bright in color, beautiful and elegant in appearance, and high in biocompatibility.

Description

technical field [0001] The invention belongs to the technical field of contact lens material research, and in particular relates to a preparation method of a structural color contact lens. Background technique [0002] In the past 30 years, the total number of people wearing contact lenses in the world has increased by 35 times, and colored contact lenses have gradually become popular due to the drive of the global fashion industry. According to incomplete statistics, my country's colored contact lenses currently account for more than 35% of the contact lens market. [0003] Colored contact lenses can be divided into two categories: The first category is a contact lens that has a transparent or opaque colored pattern only in the iris area of ​​the contact lens. Due to the opacity of the iris area of ​​​​the contact lens, it partially covers the iris of the eye. By itself, it can reveal special colors and patterns, but due to its partial opacity, it hinders the line of sight...

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
IPC IPC(8): G02C7/04B29D11/00C08F220/28C08F222/14C08J3/075C08K3/36
Inventor 顾忠泽赵远锦谢卓颖金露李婷婷
Owner SOUTHEAST UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap