Unlock instant, AI-driven research and patent intelligence for your innovation.

Improved spectacle lens production method

A production method and technology for spectacle lenses, applied in the optical field, can solve problems such as increasing production costs, and achieve the effects of reducing pollution, improving yield, and reducing production costs

Inactive Publication Date: 2015-03-18
JIANGSU YUANDA OPTICAL TECH
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the yield rate, most companies switch to tape production, which increases production costs

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1: the manufacture of rubber ring

[0013] Add 95% of medical-grade PVC particles (Shanghai Chemical Factory Co., Ltd., infusion pellets) and 5% of PVC elastic particles (Shanghai Chemical Factory Co., Ltd.) into the plastic mixer in proportion, each weighing no more than 50 kg, and stir each time. Stir for more than 10 minutes at a time. The stirred raw materials are heated and cooled by an injection molding machine to form an apron.

Embodiment 2

[0014] Embodiment 2: cleaning of rubber ring

[0015] Put 500 grams of Amway detergent in each tank, 35-40 kg of aprons to be washed, and wash for 1 hour; then put 20 kg of washed aprons in a small box, rinse in two pools, and rinse in each pool for 3 minutes.

Embodiment 3

[0016] Embodiment 3: the preparation of raw material mixture

[0017] One day before the curing reaction, 900 parts of KA55-10A, 100 parts of KA55-10LA, 1.5 parts of UV-31, 1.0 parts of UV-41, 1.3 parts of B blue, 1.0 parts of R red, 0.5 parts of V-65 Mix at room temperature to make a raw material mixture. The above raw materials are all from Jiangsu Keaoxi Optical Material Technology Co., Ltd. products, KA55-10A, KA55-10LA, UV-31, UV-41, B blue, R red and V-65 Both are the product codes of the company.

[0018] After the raw materials are mixed, they are heated under stirring in a stirring pot, and the viscosity is tested after the temperature reaches 40°C. After the viscosity reaches 60 mpa.s, use a cold water bath to quickly cool down to 25°C while stirring, and store for later use.

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 an improved spectacle lens production method, and the production method comprises the following steps: (a) preparing a raw material mixture; (b) preparing a spectacle lens die; (c) injecting the raw material mixture into the spectacle lens die, heating and curing the raw material mixture, wherein the spectacle lens die is prepared by the following steps: aligning an upper die and a lower die, then sleeving the upper die and the lower die with a rubber ring for fixing, wherein the rubber ring is made of a medical class PVC (polyvinyl chloride) material. According to the production method, medical class PVC particles are adopted, little in impurity, easy to form, and high in elasticity, thus the prepared rubber ring has small possibility of separation, firmly fixes, can be repeatedly used, and is reduced in cost, and the spectacle lens is greatly improved in quality and cost efficiency.

Description

technical field [0001] The invention belongs to the field of optics, and in particular relates to an improved production method of spectacle lenses. Background technique [0002] The production of ophthalmic lenses includes the use of molds to form raw materials after preparation. The fixing of the forming mold generally adopts two ways of tape and rubber ring. At present, most of the aprons in the industry use two materials: 1) EVA material; 2) PVC material. The product quality of the apron made of EVA is unstable, it is easy to fall off early, and the actual operation is difficult. For the PVC material, the aprons made of industrial PVC material generally used in the industry now also have the problem of being easy to fall off prematurely. In order to improve the yield rate, most companies switch to tape production, which increases production costs. Contents of the invention [0003] In order to solve the above problems, the present invention provides an improved met...

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 Applications(China)
IPC IPC(8): B29C39/22B29C39/02B29L11/00
Inventor 丁鹏飞
Owner JIANGSU YUANDA OPTICAL TECH