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Color changing process for resin lens

A resin lens and process technology, applied in the field of discoloration, can solve the problems of complex discoloration process, high cost and difficulty, and achieve the effects of uniform discoloration, easy control, and improved impact resistance

Inactive Publication Date: 2016-08-24
ZENNI OPTICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the above-mentioned prior art, the present invention provides a resin lens discoloration process, which mainly solves the problems of complex discoloration process, high cost and difficult control

Method used

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  • Color changing process for resin lens

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Effect test

Embodiment 1

[0019] Such as figure 1 Shown is the structural diagram of the photochromic lens, the lens includes a resin lens 2, a color-changing hard layer 1, an anti-reflection film 3 and a super waterproof film 4, the color-changing hard layer 1 is attached to the surface of the resin lens 2, and the anti-reflection film 3 and the super waterproof film 4 are attached to the surface of the color-changing hardened layer 1 in sequence, that is, the super waterproof film is placed on the outermost layer, and the resin lens 2 includes CR-39 Columbia resin and IPP as well as light stabilizers, dyes and anti-UV Additives; the color-changing and hardening layer 1 is obtained by dissolving the photochromic monomer in a color-changing and hardening liquid.

[0020] The photochromic lens is mainly realized through the following processes:

[0021] Step 1: First, pre-treat the resin lens, which needs to be etched by KOH, ultrasonic cleaning, methylene chloride cleaning, ultrasonic pure water clea...

Embodiment 2

[0032] Such as figure 1 Shown is a structural diagram of a photochromic lens. This rapid change, fade lens comprises resin lens 2, color change hard layer 1, anti-reflection film 3 and super waterproof film 4, described color change hard layer 1 is attached to the surface of resin lens 2, described anti-reflection film 3 and super waterproof film The film 4 is sequentially attached to the surface of the color-changing hard layer 1, that is, the super waterproof film is placed on the outermost layer, and the resin lens 2 includes MR series polyurethane-based monomers and MR series polyisocyanates as well as light stabilizers, dyes and anti-UV Additives; the color-changing and hardening layer 1 is obtained by dissolving the photochromic monomer in a color-changing and hardening liquid.

[0033] The photochromic lens is mainly realized through the following processes:

[0034] Step 1: First, pre-treat the resin lens, which needs to be etched by KOH, ultrasonic cleaning, methyl...

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Abstract

The invention discloses a color changing process for a resin lens. The color changing process is different from the traditional processes of polymerization and top coating and the like and has obvious advantages. The color changing process comprises the main steps of: (1) pretreating the lens; (2) preparing color-changing hardening liquid and adding a plasticizing agent; (3) spin coating the color changing liquid on the surface of the lens; (4) plating films; (5) checking. The color changing process disclosed by the invention has the advantages that the lens hardening and the color changing are completed in one step; the lens prepared by the process has the advantages that the color change is uniform, the service life is long and the cost is effectively reduced; simultaneously, color changing powder and the plasticizing agent are dispersed in the hardening layer in the form of particles, so that the impact resistance of the lens can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of discoloration, in particular to a resin lens dyeing process. Background technique [0002] Resin photochromic lenses are currently very popular due to their unique optical properties, and they have excellent characteristics such as light weight, impact resistance and non-fragility. Due to the discoloration effect of the lens, the discolored lens can effectively filter out harmful ultraviolet light and blue light outdoors, and can restore the normal lens color indoors, thereby better protecting eyesight. However, there are still many deficiencies in the current color-changing process: polymerized color-changing, that is, the lens introduces color-changing powder during the polymerization process, but if the color-changing powder and the polymer are not well dispersed or emulsified during the stirring process, they will be destroyed in the filtration before the raw materials are solidified. PP filter to fi...

Claims

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Application Information

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IPC IPC(8): G02C7/10G02B1/14
CPCG02C7/10G02C7/102
Inventor 刘锋
Owner ZENNI OPTICAL
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