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Manufacture method for colored soft contact lenses

A soft contact lens and a production method technology, which can be applied to other household appliances, optical components, household appliances, etc., can solve the problems of lens power deterioration, oxide layer generation, unclearness, etc., so as to improve hydrophilicity and wear Safe and comfortable, preventing dry eyes

Inactive Publication Date: 2013-10-09
JIANGSU HORIEN CONTACT LENS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the segmental polymerization of the lens, the molecular structure of the two layers will be different, and the contact surface of the two layers will also produce many problems such as an oxide layer, which will cause the focal power of the lens to become poor or unclear, etc.

Method used

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  • Manufacture method for colored soft contact lenses
  • Manufacture method for colored soft contact lenses
  • Manufacture method for colored soft contact lenses

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Example 1: Preparation of lens outer layer monomer (light curing)

[0042]

Embodiment 2

[0043] Example 2: Preparation of lens outer layer monomer (thermosetting)

[0044]

[0045] 3), the production of lens color layer: by Figure 5 As we know, use the pad printing method to transfer the ink on the steel plate pattern to the lower mold 11 with the outer layer material with a silicone head ( image 3 ), the pad printing range is above the outer layer 17 of the non-optical zone of the lens. Afterwards, the ink layer 19 is polymerized and cured by room temperature curing, light curing or thermal curing.

[0046] 4) The production of the inner surface layer of the lens: by Figure 6 , Figure 7 , Figure 8 It is known that the outer layer 17 with the lens non-optical zone ( Figure 5 ) and ink layer 19 ( Figure 5 ) into the lower mold 11 of the lens inner surface material 20, and cover it with the upper mold II06, that is, the upper mold II06 and the lower mold 11 cooperate, and the curved surface III08 of the upper mold II06 ( figure 2 ) and the male ang...

Embodiment 3

[0049] Example 3: Preparation of Lens Inner Surface Monomer (Photo-curing)

[0050]

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Abstract

A manufacture method for colored soft contact lenses successively comprises the following steps: 1) injection molding of a mould; 2) preparation of a lens outer surface layer; 3) preparation of a lens color layer; 4) preparation of a lens inner surface layer; and 5) parting, hydration, detection, packaging and disinfection of the lens. The color layer is disposed in the middle of a soft contact lenses material non-optical area interlayer; the prepared colored soft contact lenses have the advantages of sufficient hydration, complete unfoldment, natural transition of radian and corners, intact combinations among the lens outer surface layer, an ink layer and the lens inner surface layer, improved hydrophilia and moisture retention, and dryness preventing effect on eyes; and therefore the purpose of safe and comfortable wearing for consumers is realized.

Description

technical field [0001] The invention relates to a colored soft contact lens and a manufacturing method thereof. Specifically, it is a colored soft contact lens and a colored soft contact lens that puts a colored pigment coating in the middle of the soft contact lens material, and can change the hydrophilicity, moisture retention and improve the clarity of the optical zone of the outer layer of the soft contact lens. its production method. Background technique [0002] The first soft tinted contact lenses were developed to help people with eye injuries cover eye blemishes and were later widely used in film makeup. With the continuous improvement of people's living standards, colored soft contact lenses with multiple functions such as vision correction and beauty treatment are widely used in daily life. [0003] Colored soft contact lenses can be divided into three types according to the position and structure of the color layer: the first is that the color layer is coated o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/16B29C45/26B29L11/00
Inventor 王富和
Owner JIANGSU HORIEN CONTACT LENS
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