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

Ink composition for cosmetic contact lenses

A technology for ink composition and contact lens, which can be applied in ink, application, household appliances, etc., and can solve the problems that silicone hydrogel contact lenses cannot be effectively applied

Pending Publication Date: 2022-01-07
强生视力健公司
View PDF39 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, the processes used to produce traditional hydrogel lenses have not been effectively adapted to produce silicone hydrogel contact lenses

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Ink composition for cosmetic contact lenses
  • Ink composition for cosmetic contact lenses
  • Ink composition for cosmetic contact lenses

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0137] By adding 9% by weight of black iron oxide pigment ( black 85E 172, Rockwood Italia SpA-Divisione Silo) was added to the varnish coating solutions listed in Table 1 to prepare ink compositions 1A-1D. Using a small ball mill ( Tube drive (UTTD) system, IKA) mixed ink. In addition, the ink can be further mixed manually for 30 minutes using a can roller or using an overhead mixer at 700 rpm to 1800 rpm.

[0138] Table 1

[0139]

[0140]

Embodiment 2

[0142] The varnish coats (varnish coats 1A-1D) were first printed on the front curve mold using a lab scale pad printer, and then printed over them using inks 1A-1D Typhoon pattern. The printed front curve molds were degassed under nitrogen for at least 12 hours. Printed contact lenses were manufactured in a glove box where the oxygen content was maintained between 0.5% and 5%. Approximately 100 microliters of RMM#1 listed in Table 2 were dosed into the printed front curve mold at ambient temperature. The time between dosing RMM#1 and placing BC is called "Dwell 1". Nominal dwell 1 time not to exceed 5 seconds unless otherwise specified. Then place the base surface mold on RMM#1. Next, place a clear quartz plate on top of the mold assembly. The tray including the mold assembly was then moved into a curing chamber at 60°C-70°C. The time between placing the weight and starting to cure is called "Dwell 2". Nominal dwell 2 not less than 5 minutes unless otherwise specified...

Embodiment 3

[0151] By adding 9% by weight of black iron oxide pigment ( black 85E 172, Rockwood Italia SpA-Divisione Silo) was added to the varnish coating solutions listed in Table 4 to prepare ink compositions 3A-3C. Using a small ball mill ( Tube drive (UTTD) system, IKA) mixed ink. In addition, the ink can be further mixed manually for 30 minutes using a can roller or using an overhead mixer at 700 rpm to 1800 rpm.

[0152] Table 4

[0153]

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

PropertyMeasurementUnit
molecular weightaaaaaaaaaa
number average molecular weightaaaaaaaaaa
number average molecular weightaaaaaaaaaa
Login to View More

Abstract

Provided are ink compositions for making cosmetic contact lenses, as well as cosmetic contact lenses and methods for their preparation and use. The ink composition comprises: (a) a colorant; and (b) a nonreactive hydrophilic polymer.

Description

[0001] related application [0002] This application claims priority to U.S. Patent Application Serial No. 16 / 987,673, filed August 7, 2020, and U.S. Provisional Patent Application Serial No. 62 / 899,311, filed September 12, 2019, which are incorporated by reference in their entirety This article. technical field [0003] The present invention relates to cosmetic contact lenses, and more particularly, to ink compositions that can be used to make cosmetic contact lenses, such as cosmetic silicone hydrogel lenses. Background technique [0004] The use of colored hydrogel contact lenses to alter the natural color of the eye for cosmetic purposes is known. Ink compositions used to produce colored hydrogel contact lenses typically consist of a binding polymer and a colorant. Known ink compositions for cosmetic lenses are generally designed for use with conventional (non-silicone) lenses. [0005] In recent years, contact lenses formed from silicone hydrogels have become popula...

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): C09D11/107C09D11/106C09D11/037G02C7/04
CPCC09D11/107C09D11/106C09D11/037G02C7/049C09D11/10C09D11/033B29L2011/0041G02B1/043B29D11/00048B29D11/00134C08K3/013C08F220/20C08G77/20C08G77/26C08G77/28C08K5/0041C08L39/06C08L77/00C08L83/06C09D11/102G02C7/04
Inventor J·巴顿张勇A·古兹曼G·马哈维
Owner 强生视力健公司