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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
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  • 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 structural color contact lenses in the prior art, and cannot meet the comprehensive requirements of users wearing glasses for safety, sanitation and beautiful appearance

Method used

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

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Example 1 Preparation of Structural Color Contact Lenses

[0033]

[0034] Such as figure 1 The steps shown are to prepare structural color contact lenses, and the following is a specific description:

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

[0036] Monodisperse 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, mole ratio), adjust the mass percent of silicon dioxide to be 60%, and ultrasonically disperse until the colloidal particle solution produces a bright and bright structural color; in this solution, add initiator azoisodibutylcyanide (0.1%, mass volume ratio) , after fully mixing, pass nitrogen gas for 5 minutes, and seal the structural color colloid solution for later use;

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

[0038] Add 200 microliters of structural chromatic colloid...

Embodiment 2

[0041] Example 2 Preparation of Structural Color Contact Lenses

[0042]

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

[0044] Add the monodispersed silica colloidal nanoparticles with a diameter of 200 nanometers into a mixed solution of siloxane methacrylate (SMA) and ethylene glycol dimethacrylate (EGDMA), and adjust the mass percentage of silica to 40%, ultrasonic dispersion, until the colloidal particle solution produces a bright and bright structural color; add the initiator azoisodibutylcyanide (0.1%, mass volume ratio) to this solution, after fully mixing, pass through nitrogen for 5min, seal Structural color colloid solution for standby;

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

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

Embodiment 3

[0049] Example 3 Preparation of Structural Color Contact Lenses

[0050]

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

[0052] Add monodisperse polymethyl methacrylate colloidal nanoparticles with a diameter of 180 nm into a mixed solution of hydroxyethyl methacrylate (HEMA) and ethylene glycol dimethacrylate (EGDMA) (HEMA / EGDMA=20: 1, mol ratio), the mass percent of regulating polymethyl methacrylate is 50%, ultrasonic dispersion, until the colloidal particle solution produces bright and bright structural color; In this solution, add initiator azoisodibutylcyanide (0.1 %, mass-to-volume ratio), after fully mixing, pass through nitrogen gas for 5 minutes, and seal the structural color colloid solution for subsequent use;

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

[0054] Add 200 microliters of structural chromatic colloid solution into the mold used for contact lens preparation, let it stand for 20 minutes, and irradiate it wi...

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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

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Application Information

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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
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