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Konjak contact lenses and preparation method thereof

A contact lens, konjac technology, applied in glasses/goggles, other household appliances, applications, etc., can solve the problems of allergic reaction of lens coating, enhance eye discomfort, etc., achieve excellent gel properties, low production cost, elasticity Good results

Inactive Publication Date: 2013-07-24
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the coating can enhance eye discomfort and some people may have an allergic reaction to the lens coating

Method used

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  • Konjak contact lenses and preparation method thereof

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Embodiment Construction

[0028] Below in conjunction with embodiment the present invention is further elaborated.

[0029] (1) Gel liquid preparation: put the purified konjac powder in a three-necked bottle, add 100 times the weight of water, and put the three-necked bottle in a constant temperature water bath. The three-necked bottle is equipped with a stirrer and a condenser; a mixer 150r Heat to 45°C while stirring, keep warm for 2 hours, make the main components swell, filter, add 1.5 mol / mL aqueous solution of potassium persulfate as initiator, add 1.2 mol / mL monomeric acrylic acid aqueous solution after 10 min, and Add 0.8% paraffin, 0.2% glycerin, and 4% synergist according to the weight percentage of water, stir until completely dissolved, and set aside;

[0030] (2) Degassing: put the gel solution in step (1) in a centrifuge, and centrifuge and degas it at 3000r / min for 20 minutes to obtain the konjac glucomannan mixed gel solution;

[0031] (3) Molding: use the injection molding machine of ...

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Abstract

The invention relates to a pair of konjak contact lenses and a preparation method thereof. The preparation method of the konjak contact lenses comprises the steps of: gel solution preparation, degassing, forming and post-processing. Konjak gulcomannan is used as a carrier and is supported by other auxiliaries, the konjak contact lenses are good in gel, hydrophily, antibacterial property, and oxygen permeability, high in transparency, good in elasticity, strong in flexibility, and hard to break. Compared with the traditional contact lens, the konjak contact lenses provided by the invention are antibacterial and a production material is environment-friendly, the security and the use performance are completely fit with the national relevant standard demand. Since the konjak gulcomannan is used as the main material, the contact lenses are low in cost, small in environment pollution, and free from harm to a human body, and fit the modern consumption concepts and market requirements.

Description

technical field [0001] The invention relates to glasses and a preparation method thereof, in particular to a konjac contact lens and a preparation method thereof. Background technique [0002] With the increase of myopia patients year by year, the types of glasses are also increasing. The contact lenses with many functions, that is, contact lenses, are a kind of lenses that are worn on the cornea of ​​the eyeball to correct vision or protect the eyes. It brings great improvement to patients in terms of appearance, convenience and effect, and it is also used in special treatment [0003] Eye disease also played a role. The potential number of people who need to wear glasses in our country should account for 50% of the total number of people. The domestic glasses market has great potential for development, especially contact lenses. [0004] The invention patent of application number 87105002 "Fluorine-containing soft contact lens hydrogel" (application date: 1987.07.18) aim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02C7/04C08L51/02C08L5/08C08L5/04C08K5/053B29D11/00
Inventor 庞杰陈国正薛海波潘娟孙中琦冯瑞
Owner FUJIAN AGRI & FORESTRY UNIV