KR20190138783A - Color contact lens and its manufacturing method - Google Patents

Abstract

The present invention relates to a color contact lens designed to allow a wearer's eye to become larger, more defined and more brilliant while maintaining a natural by blending seamlessly with the eye. The color contact lens comprises a first print of a first color and a second print of a second color, the first print is an annular ring of a gradient dot matrix, the second print is an annular ring of a dotted pattern, and an annular of a dotted pattern The ring comprises a cluster of regular or irregular shapes distributed annularly, the regular or irregular shape consists of a large number of circular dots, the annular ring of the dotted pattern has a smooth-inner and outer boundary, and the second print Located inside the first print, the first and second colors are different or the same, and the first and second prints are concentric with the center of the contact lens.

Description

Color contact lens and its manufacturing method

The present invention relates to a color contact lens that can make a wearer's eyes larger, more defined and brighter, while keeping it natural by seamlessly blending with the eye. The invention also relates to a method for designing and manufacturing a color contact lens of the invention.

For cosmetic purposes, there is a great demand for color contact lenses in which one or more colorants are dispersed in or printed on the lens. Such color contact lenses enhance the natural beauty of the eye, provide a unique pattern on the wearer's iris, or provide a non-aesthetic pattern.

In general, there are two types of color contact lenses. The first type is a contact lens that uses an essentially transparent enhancement color that allows the color of the natural iris to be seen through but in combination with that natural color to create a new appearance. Such transparent color lenses are typically used to convert bright eyes (eg green) to slightly different shades (eg aqua). This kind of color lens can basically not change the dark-colored brown iris to blue. The second category is a kind of opaque color lens having a continuous opacity pattern that completely covers the iris or an intermittent opacity pattern that does not completely cover the iris. Opaque color contact lenses can effectively and substantially change the eye color of the wearer.

Certain contact lens consumers have shown interest in improving their eyes without significantly altering their natural eye color. They wanted their eyes to look larger and more distinct and brighter, keeping them natural by harmonizing with the eyes seamlessly. However, these consumers did not want to know who wore contact lenses and all designs would need to be natural.

Thus, there is still a need for color contact lenses that can enhance contrast and make the eyes larger and clear while maintaining the wearer's natural basic iris structure and color.

The present invention provides a color contact lens, wherein the contact lens comprises a first print of a first color and a second print of a second color, the first print being an annular ring of a gradient dot matrix, The second print is an annular ring of dotted pattern, the annular ring of dotted pattern comprising a cluster of regular or irregular shapes distributed in an annular shape, wherein the regular or irregular shape consists of a large number of circular dots, and is dotted The annular ring of the pattern has a smooth-inner and outer boundary, the second print is located inside the first print, the first color and the second color are different or the same, and the first print and the second print are contact Concentric with the center of the lens.

In another aspect, the invention includes a method of making a color contact lens, the method comprising:

Providing a preformed contact lens; And

Applying a first print pattern of opaque color dots of a first color onto at least one of the front and back surfaces of the contact lens, wherein the first print is an annular ring of a gradient dot matrix;

Applying a second print pattern of opaque color dots of a second color on the surface of the contact lens, wherein the second print is an annular ring of dotted pattern, and the annular ring of dotted pattern is an annular or regular shape that is annularly distributed A regular or irregular shape consisting of a large number of circular dots, the annular ring of dotted pattern having an unsmooth-inner and outer boundary, the second print being located inside the first print, The first color and the second color are different or the same, and the first and second prints comprise steps concentric with the center of the contact lens.

In another aspect, the present invention includes a method of making a color contact lens, the method comprising:

(a) providing a mold comprising a first mold half having a first molding surface forming a front surface of the contact lens and a second mold half having a second molding surface forming a rear surface of the contact lens The first and second mold halves are configured to receive each other, thereby forming a contact lens forming cavity between the first molding surface and the second molding surface;

(b) applying a second print pattern of opaque color dots of a second color onto at least one of the molding surfaces of the lens mold by using a pad-transfer or inkjet printing technique, wherein the second The print is an annular ring of dotted pattern, the annular ring of dotted pattern comprises a cluster of regular or irregular shapes distributed annularly, the regular or irregular shape consists of a large number of circular dots, and the annular ring of dotted pattern is smooth -With non-inner and outer boundaries, and

(c) applying a first print pattern of opaque color dots of a first color onto the surface of the mold by using pad-transcription or inkjet printing techniques, wherein the first print is an annular ring of a gradient dot matrix, And wherein the second print is located inside the first print, the first and second colors are different or the same, and the first and second prints are concentric with the center of the contact lens.

These and other aspects of the invention will become apparent from the following description of the preferred embodiments, taken in conjunction with the following drawings. As will be apparent to those skilled in the art, many changes and modifications of the present invention can be made without departing from the spirit and scope of the novel concepts of the disclosure.

1 shows a contact lens of the prior art.
Figure 2 shows a first print pattern which is a pattern of an annular ring of a gradient dot matrix according to the invention.
3 shows a second print pattern that is an annular ring of a dotted pattern.
4 shows a third print pattern that is a first tulip flower ring pattern.
5 shows a fourth print pattern that is a second tulip flower ring pattern.
6 shows an example of a contact lens comprising two patterns (FIGS. 2 and 3) according to the invention.
7 shows an example of a contact lens comprising three patterns according to the invention (FIGS. 2, 3 and 4).
8 shows a third example of a contact lens comprising four print patterns (FIGS. 2, 3, 4 and 5) according to the invention.

Embodiments of the present invention will now be described in detail. It will be apparent to those skilled in the art that various modifications and changes can be made in the present invention without departing from the scope or spirit of the invention. For example, features shown or described as part of one embodiment may be used in another embodiment resulting in another additional embodiment. Accordingly, the present invention will include such modifications and variations as come from the scope of the appended claims and their equivalents. Other objects, features and aspects of the invention are disclosed in the following detailed description or are apparent from the following detailed description. Those skilled in the art will appreciate that the description is merely illustrative of exemplary embodiments and is not intended to limit the broader aspects of the invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In general, the nomenclature and experimental procedures used herein are well known and commonly used in the art. Conventional methods, such as those provided in the art and various general references, are used for this procedure. Where terms are provided in the singular, the inventors also contemplate the plural of the term.

"Contact lens" refers to an object that can be placed on or in the wearer's eyes. Contact lenses may, but need not necessarily, correct a user's vision. The contact lens may be composed of any suitable material known in the art or later developed, and may be a soft lens, hard lens, or hybrid lens. Before printing any color pattern, the contact lens can be colored. The contact lens can be dry or wet. "Dry state" refers to the state of a soft lens before hydration or a hard lens under storage or use conditions. "Wet state" refers to a soft lens in a hydrated state.

As used herein, the "front or front surface" of a contact lens refers to the surface of the lens that faces away from the eye during wearing. Typically the substantially convex front surface may also be referred to as the front curve of the lens.

As used herein, the "back or rear surface" of a contact lens refers to the surface of the lens that faces toward the eye during wearing. Typically the substantially concave back surface may also be referred to as the base curve of the lens.

"Color contact lens" refers to a contact lens (hard or soft) on which a color image is printed. The color image can be a cosmetic pattern, such as an iris-like pattern, a Wild Eye ^™ pattern, a made-to-order (MTO) pattern, and the like. The color image may be a single color image or a multi-color image. The color image is preferably a digital image, but it can also be an analog image.

The term "eye color" refers to the color of the eye iris.

The term "general observer" is intended to mean a person having a normal 20/20 version standing about 5 feet from a person wearing the lens of the present invention.

As used herein, the term "non-opaque" is intended to describe a portion of a lens that is colored in transparent or translucent color, or in uncolored or transparent or translucent coloring.

"Colored coat" refers to a coating on which an object and a color image is printed.

"Colorant" means one or more dyes or one or more pigments or mixtures thereof used to print a pattern of color elements on a contact lens.

"Dye" means a substance that can be dissolved in a solvent or water and used to impart color. Dyes typically have low opacity and are almost transparent or translucent. The dye may cover both the optical area of the contact lens and the non-optical area of the contact lens.

"Pigment" means a powdered material suspended in a liquid in which dissolution does not occur. Pigments are used to impart color. Pigments are generally more opaque than dyes.

As used herein, the term “traditional or non-pearlescent pigment” imparts color based on the optical principles of diffusion scattering and any absorption that color is independent of its geometry. To illustrate the pigment. Although any suitable non-pearl gloss pigment may be used, it is presently preferred that the non-pearl gloss pigments have heat resistance, non-toxicity and insolubility in aqueous solutions. Examples of preferred non-pearl gloss pigments are D & C Blue No. 6, D & C Green No. 6, D & C Violet No. 2, accepted in medical devices, such as carbazole violet, certain copper complexes, certain chromium oxides, various iron oxides, phthalocyanine green, phthalocyanine blue, titanium dioxide, etc. It includes any colorant approved by. See Marmiom DM Handbook on Colorants in the United States as a list of colorants that may be used with the present invention. More preferred examples of non-pearl gloss pigments (CI is the color index number), including but not limited to phthalocyanine blue (blue pigment 15: 3, CI 74160), cobalt blue (blue pigment 36, CI 77343), toner cyan ClG, Permajet blue B2G (Clariant); For green color, phthalocyanine green (green pigment 7, C.I. 74260) and chromium sesquioxide; Various iron oxides for yellow, red, brown and black colors; Purple, for carbosol purple, PR122, PY154; For black, Monoolith black C-K (CIBA Specialty Chemicals) is included.

"Pearl gloss" means pearl luster; Physical appearance resembles a pearl; Or a color having a shiny, slightly reflective appearance.

"Pearl gloss pigments" are transparent thin platelets of small refractive index materials (e.g., coated with an optically thin coating of a large refractive index material (e.g., a metal oxide such as titanium oxide or iron oxide). Transparent mica platelets) and mainly impart color based on the optical principles of thin-film interference. Optically thin coatings of metal oxides can be composed of one or multiple thin layers of metal oxides. The optically thin coating applied to the platelets contributes to the interference effect, which allows the appearance to vary depending on the illumination and observation conditions. Color is determined by coating thickness, refractive index and illumination angle. Due to the partial reflection from the metal oxide and the partial transmission through the mica platelets, optically thin coatings can also be responsible for the rich, deep, gloss effect.

Pigments of this kind can provide pearl luster and iridescent effects.

Pearlescent pigments, which are mica platelets with oxide coatings, are under the "Mearlin Pigment" line, such as "Hi-Lite Interference Colors," "Dynacolor Pearlescent Pigments", "MagnaPearl", "Flamenco," and "Celini Colors". Commercially available from Englehard Corp., Iselin, New Jersey. As an additional manufacturer of pearlescent colorants: Kemira, Inc., Savannah, Georgia, USA under the trade name "Flonac Luster Colors" of the pigment; EM Industries, Inc., Hawthorne, NY, USA, under the trade name "Affair Luster Pigments".

As used herein, the term "pearlly colored" is intended to describe an element of a color pattern colored with a pearlescent colorant (ie, a colorant comprising at least one pearlescent pigment).

In the case of pearlescent pigments, it is important to minimize platelet breakage and maintain sufficient levels of dispersion during processing. Pearlescent pigments require calm handling during mixing, and they must not be grounded or subjected to long mixing, milling or large shear, since such operation can damage the pigment. Particle size distribution, shape and orientation have a strong impact on the final appearance. Milling, large shear mixing, or long periods of processing of pearlescent pigments should be avoided because such operations can lead to delamination of the metal oxide coated layer, breakage of platelets, platelet aggregation and platelet compaction. to be. Layering, compacting, breaking, and agglomerating metal oxides will reduce the pearlescent effect.

As used herein, the term “glow effect” may be a small element in a design, and a pearlescent structure to provide a reflective eye appearance that is brighter in color than the rest of the pattern and / or is shiny and glossy. It is for explaining the effect by the use of a combination of inks having a. Metallic or pearlescent pigments can give radiance, shimmer or brightness by the nature of their flake type or structure. In addition, by increasing the brightness and / or chroma of the ink color relative to other portions of the pattern or relative to the natural iris, a shiny, shiny, or bright appearance can also be achieved. In CIELAB terminology, this will be equal to a larger L ^* (brightness) and / or C ^* (chromaticity) value, which larger value results from the rest of the print pattern and / or L ^* or C ^* of the natural iris. Means to give it a shiny, or bright appearance.

As used herein, “non-uniform or jagged or irregular border or peripheral edge” means a boundary having a radial distance (ie, distance from the lens center) that differs from each other by at least about 20% of its outermost position. Refers to the marginal edge. As used herein, a "uniform boundary or peripheral edge" means a boundary or periphery where the outermost position has a substantially constant radial distance (ie, distance from the lens center), that is, less than 20% of each other. Refers to the edge.

The term "print coverage or percentage of dot coverage" refers to the portion of the total area within the area covered by color dots measured by using Adobe Photoshop graphic image editing software to determine the number of pixels on the area. Refers to. The percentage of print coverage is calculated as follows:

% Print Coverage = [(Number of pixels in dot coverage area) / (Number of pixels in total area)] x 100

Total Area = Printed Area + Unprinted Area

"Hydrogel" means a cross-linked polymer having an equilibrium content of about 10 to 90% water.

A "lens-forming material" is a polymerizable that can be cured (ie polymerized and / or crosslinked) thermally or actinically (ie by chemical radiation) to obtain a crosslinked polymer. Refers to a composition. Examples of actinic radiation are UV radiation, ionized radiation (eg gamma or X-ray radiation), microwave radiation, and others. Thermal curing or actinic curing methods are well known to those skilled in the art. Lens-forming materials such as HEMA-based hydrogels and silicone hydrogels are well known to those skilled in the art.

"HEMA-based hydrogel" refers to a hydrogel obtained by copolymerization of a polymerizable composition comprising hydroxyethyl methacrylate (HEMA).

"Silicone hydrogel" refers to a hydrogel obtained by copolymerization of a polymerizable composition comprising at least one silicon-containing monomer or at least one silicon-containing macromonomer.

As used herein, "hydrophilic" describes a material or portion that will be more easily associated.

The "print-on-mold process for producing color contact lenses" refers to the color contact lenses described in US Pat. No. 5,034,166 to Rawlings et al. (Incorporated herein by reference). Refers to a process for molding.

The present invention relates to color contact lenses designed to enhance the wearer's natural eye color and make their eyes sharper while providing a very natural appearance when perceived by a general observer.

For example, certain dark-eye contact lens consumers have shown interest in enhancing their eyes without significantly altering their natural eye color. They want their eyes to look darker, sharper, and larger, and to look brighter, keeping them natural by harmonizing with the eyes seamlessly. However, these consumers did not want to know who wore contact lenses and all designs would need to be natural. Slightly-colored (ie blue or green) and medium-colored (ie hazel, light brown) contact lens consumers also do not change their natural eye color, but still naturally, their eyes Similar interest has been shown to significantly improve.

By placing a colored design on the contact lens to improve the contrast of the wearer's eyes, in particular its borders, such cosmetic effects (ie, providing a very natural appearance, while enhancing the color of the wearer's eyes and Sharper) can be achieved. This design can be applied by printing onto contact lenses via conventional means. The present invention has exemplified certain designs and colors, which provide these colors to the eye, also in harmony with the wearer's natural eye color. The invention described herein is a series of rings placed on top of each other to provide the desired effect. This first print layer is a diffusion pattern with a gradient dot matrix that allows the bottom boundary and iris structure to be visible. The design of the first print of the present invention helps to provide both the properties of the naturally-visible pattern and of the large contrast with the wearer's natural eyes, especially when the first print overlaps the second print. The first print blocks some of the light reflected from the lower iris and allows for a good harmony with the natural eye. The second print is an annular ring of dotted pattern, wherein the annular ring of dotted pattern comprises irregularly distributed clusters of annular shapes, the dotted shape consists of a large number of small dots, and the annular ring of dotted pattern is It has internal and external boundaries that are not smooth.

The second print is located inside the first print, the circular border distinguishes the first print and the second print, the circular border is uniform or jagged, the first color and the second color are different or the same, and the first print The print and circular boundaries are concentric with the center of the contact lens. The width of the dotted annular ring pattern is about 30 to 90% of the width of the annular ring of the gradient dot matrix. The second print of the annular ring of the dotted pattern can enhance the first print of the annular ring of the gradient dot matrix. The annular ring of the dotted pattern overlaps the annular ring of the gradient dot matrix pattern, the inner diameter of the dotted pattern is smaller than the inner diameter of the gradient dot ring, and the centers of the rings are concentric with each other. The improved annular ring of the gradient dot matrix pattern provides a more attractive design in which the eye is larger and clearer than the annular ring of the non-enhanced gradient dot matrix pattern.

The two layers superimposed provide the desired color design, which covers the wearer's natural boundary ring and makes the eye color clearer than a single layer of its own. In the eye, the pattern provides an attractive design in which the eye is perceived to be larger and clearer. Such cosmetic effects (i.e., enhancing the color of the wearer's eyes and making their eyes more vivid, while providing a very natural appearance) are intended for contact lens wearers with dark-eye as well as many other eye colors. It has also been found to work particularly well. A larger appearance is created by increasing the size of the design pattern to result in a larger pattern on the final lens to achieve the desired eye-eye appearance of the larger iris. This first print pattern herein is intended to cover a portion of the natural sclera, just outside of the natural iris (outside the natural pupil area), natural boundaries, and just outside the natural iris. Thus, according to the present application, a larger appearance is produced by increasing the size of the first print pattern of the annular ring of the gradient dot matrix and is improved by the second print of the annular ring of the dotted pattern. It has further been found that the aforementioned contact lens further comprising a third print of a third color provides brightness and depth to natural dark eyes. Contact lenses capable of shaping the color of the dark-eye human's iris wearing the lens while the same or additional colors, tints and shades add additional depth, thereby making subtle changes and giving a very natural appearance. To provide. According to the present application, the third print is a first tulip flower ring pattern, and the third print has an outer diameter equal to or smaller than the outer diameter of the second print; The third print has an inner diameter smaller than that of the second print, and the tulip flower has a shape including two elements; The first element is a sinuous shape having a thicker center and a thinner first and second ends; The second element is a mirror image of the first element, converges such that the first end of the first element and the first end of the second element are in contact with each other, the second end of the first element and the second end of the second element Divergent, the tulip flower repeats in an annular fashion to form a ring with converged points that point inwardly, the first color, the second color and the third color being different or the same, the first print, the second print And the third print is concentric with the center of the contact lens.

Additionally, the above-described contact lens further includes a fourth print of a fourth color, the fourth print is a second tulip flower ring pattern, and the second tulip flower ring has a diverging point that is pointed inward (toward the pupil). It was found that it was formed by repeating the tulip flower in an annular fashion to form a ring with a ring. The fourth print has an annularly enclosed tulip flower to form a ring with diverging points pointed inwards (toward the pupil), while the third print has a ring with converging points pointed inwards (toward the pupil) To have a tulip flower enclosed in an annulus to form. Since the third print pattern and the fourth print pattern are offset, there is room for clarifying the same color or additional color to provide a contact lens pattern for more natural looking and adding more depth.

In accordance with the present invention, the use of a combination of small elements in the design, and inks that may be lighter in color than the rest of the pattern, or may have a pearlescent structure, may give light to the eyes, shimmer or brightness. Metal or pearlescent pigments may impart radiance, shimmer, or brightness by the nature of their flake type or structure; By increasing the brightness and / or chromaticity of the ink color relative to other portions of the pattern or relative to the natural iris, a shiny, shiny, or bright appearance can also be achieved. In CIELAB terminology, this will be equal to the larger L ^* (brightness) and / or C ^* (chromatic) values of the element, which larger value than the rest of the print pattern and / or the L ^* or C ^* of the natural iris. It means providing a shiny, shiny, or bright appearance.

In the CIELAB color space, the L ^* value refers to the brightness of the color compared to the gray scale in the range from black to white. C ^* refers to the chromaticity of the color, or the deviation of the color shifted away from the gray scale. This is similar to saturation of color, but not exactly the same. The hue angle h ° refers to the hue of the color, which can be thought of as the basic color designations: red, orange, yellow, green, blue, and purple.

In order to impart radiance, shimmer or brightness to the contact lens, the intended element must be 10 to 90 L ^* units larger than the other colors used in the cosmetic lens, or the C ^* of the intended element is used in the cosmetic lens. It must be larger by 10 to 90 C ^* units than other colors. Ideally, both L ^* and C ^* should be 10 to 90 units larger than the color among other colors used in cosmetic lenses.

For example, a print pattern with a black outer ring and some brown spot pattern elements intended to match the eye can also include some flecks, such as small flame shapes, which can be orange or yellow color, It may or may not contain pearlescent pigments such as. Orange and yellow colors, by their nature, have larger L ^* and C ^* values than brown colors because brown is considered a low chromatic orange color and is not itself a hue. In this case, the orange and yellow colors may be at least 10 L ^* and / or C ^* units larger than the black and brown colors used in the lens.

The color tone of the element intended to impart radiance may or may not be similar to the ink in the rest of the print pattern. For example, blue elements with larger L ^* and C ^* units can be used on these other brown and black cosmetic lenses.

In one aspect, the present invention provides a color contact lens, wherein the contact lens comprises a first print of a first color and a second print of a second color, the first print being an annular ring of a gradient dot matrix, 2 The print is an annular ring of dotted pattern, wherein the annular ring of dotted pattern comprises a cluster of regular or irregular shapes distributed in an annular shape, the regular or irregular shape consisting of a large number of circular dots, and the annular ring of dotted pattern Has a non-smooth inner and outer border, the second print is located inside the first print, the first and second colors are different or the same, and the first and second prints are concentric with the center of the contact lens Enemy

As is well known in the art, color is generally described primarily by the following interrelated terms: hue, chromaticity, intensity, saturation, brightness, brightness, value and opacity.

The term "different colors" is intended to explain that at least one of the two colors differs in hue, chromaticity, intensity, saturation, brightness, brightness, value and opacity. As used herein, the term "second color different from the first color" (or some similar language) means that both colors are completely different colors, such as blue and hazel color; Or both colors have the same hue, but different brightness, values, such as light blue and dark blue.

The term " annular ring of gradient dot matrix " is intended to mean gradually increasing the localized colored dot coverage in the radial direction (from center to edge) of the annular ring. For example, a larger number of printed colored dots in the area near the outer perimeter edge of the annular ring cause the appearance of the outer perimeter edge of the darker annular ring than the inner perimeter edge of the annular ring. Alternatively, when the spacing of the centers of each dot is constant, the larger colored colored dots in the area near the outer circumferential edge of the annular ring are darker than the outer perimeter of the annular ring than the inner peripheral edge of the annular ring. Causes the appearance of soft edges. Alternatively, by removing the printed area, such as removing the print from an area of large print density (ie, circular void), the print density can be reduced. The inner peripheral edge of the annular ring refers to the edge closest to the center of the color lens. The outer peripheral edge of the annular ring refers to the edge furthest from the center of the color lens. Alternatively, the gradient dot matrix can be constructed with a constant dot density.

The printed colored dots or void areas may have any shape, regular or irregular, such as round, oval, triangular, square, hexagonal, elongated, and the like. All colored dots or void areas may have similar or different shapes. Preferably, all printed dots or void areas have a substantially similar shape. More preferably, all printed dots or void areas have a circular shape.

The dot size ranges preferably from 0.01 to about 0.5 mm. The spacing between the dots is preferably 0.01 to about 0.3 mm. The printed area removed is also a circle (ie a circular void) of 0.01 to about 0.3 mm with a spacing of 0.01 to 0.3 mm.

1 shows a contact lens of the prior art as an example. It has a non-opaque pupil section 20 at the center of the lens, and an annular iris section 21 surrounding the pupil section. In the hydrophilic lens, the transparent peripheral section 22 surrounds the iris section 21. As shown in FIG. 1, a colored, opaque, intermittent pattern is located above the entire iris section 21. The pattern leaves non-opaque significant portions of the iris section in the gaps of the pattern. The non-opaque region of the iris section 21 is shown in white in FIG. 1.

FIG. 2 schematically illustrates, by way of example, a “first print pattern” consisting of an annular ring of a gradient dot matrix. Dots, preferably opaque dots, may have any shape, regular or irregular, such as circular, oval, triangular, square, hexagonal, elongated, and the like. All the dots may have similar or different shapes. Preferably, all the dots have a substantially similar shape. More preferably, all the dots have a circular shape. The first print pattern is concentric with the center of the lens and has a substantially uniform outer peripheral edge and a substantially uniform inner peripheral edge. The outer peripheral edge of the first print has a diameter of about 12.5 mm to about 15 mm, and the width of the first print is about 0.8 mm to about 3.5 mm and preferably about 2.0 mm to about 3.0 mm. The first print can be many colors, for example black, blue, gray, brown, light blue, turquoise, purple, dark-purple, blue-purple, aqua, yellow or green. Preferred colors for the first print are black or brown.

Figure 3 shows a "second print pattern" which is an annular ring of dotted pattern. According to the present application, the annular ring of dotted pattern consists of regular or irregular shaped clusters, such as circular, elliptical, triangular, square, hexagonal, elongated, etc. distributed in an annular shape, wherein the regular or irregular shape is a large number of It consists of circular dots. According to the invention, a large number of circular dots refers to 4 to 2500, preferably 10 to 1500, more preferably 15 to 500, and even more preferably 20 to 300 circular dots. The width of the dotted annular ring pattern is about 30 to 90% of the width of the annular ring of the gradient dot matrix.

Figure 4 illustrates a "third print pattern" which is a tulip flower pattern in accordance with the present invention. The third print is a first tulip flower ring pattern having a shape comprising two elements, the first element being a serpentine shape having a thicker center and a thinner first and second ends; The second element is a mirror image of the first element, converges such that the first end of the first element and the first end of the second element are in contact with each other, the second end of the first element and the second end of the second element Emitted, the tulip flower repeats in an annular fashion to form a ring with convergent points that point inwardly, thus creating a U-shaped chalice shape.

The third element is reduced in size than the first element, placed in a U-shaped cup and contacted on at least one side.

According to the invention, the tulip flower shape may comprise all three elements, or optionally only the first two elements. This shape is repeated to encircle in an annulus, forming a ring with converged points that point inwardly.

5 shows a "fourth print pattern" which is a second tulip flower pattern in accordance with the present invention. The second tulip flower pattern is also composed of a tulip flower shape repeated around the annular ring. The second tulip flower shape is the same as the first tulip flower shape shown in FIG. 3 except for the following exceptions, which exceptions are: 1) the tulip flower shape is repeated so as to surround the annular shape of the contact lens pattern. Forming a ring with converged points that point inwardly to the center; 2) The tulip flower shape is smaller or larger.

6 shows an example of a contact lens comprising two print patterns to form an improved outer ring pattern, which is a combination of the annular ring of the gradient dot matrix of FIG. 2 and the annular ring of the dotted pattern of FIG. 3. The inner diameter of the annular ring of the dotted pattern is smaller than the inner diameter of the gradient dot annular ring, and the centers of the rings are concentric with each other. The annular ring of this dotted pattern produces a better harmony with the natural iris.

7 shows an example of a contact lens comprising three patterns according to the invention (FIGS. 2, 3 and 4). The design of FIG. 7 is three print patterns, where the top pattern is a dark, well-defined outer ring, in particular for increasing the appearance of the iris diameter. The annular ring (FIG. 3) of the dotted pattern overlaps with the gradient dot pattern (FIG. 2). The annular ring of the dotted pattern consists of clusters of regular or irregular shapes distributed annularly, and the regular or irregular shape consists of a large number of circular dots. The annular ring of the dotted pattern has an uneven inner and outer boundary. According to the invention, the width of the dotted annular ring pattern is about 30 to 90%, preferably about 35 to 80%, and more preferably 40 to 70% of the width of the annular ring of the gradient dot matrix. When evaluating the layers separately, the inner diameter of the dotted pattern is smaller than the inner diameter of the gradient dot ring, and the centers of the rings are concentric with each other. This dotted pattern produces a better harmony with the natural iris. The combination of patterns forming the improved outer ring pattern is shown in FIG. 6.

8 shows a third example of a contact lens comprising four print patterns (FIGS. 2, 3, 4 and 5) according to the invention. The design of FIG. 8 is four print patterns, where the top pattern is a dark, well-formed outer ring, in particular for increasing the appearance of the iris diameter. The fourth layer is a second tulip flower ring pattern composed of similar tulip flower shapes repeated in different ways around the annular ring when compared to the first tulip flower ring pattern.

The second tulip flower ring pattern also has a shape comprising two elements, the first element being a sinuous shape having a thicker center and a thinner first and second ends; The second element is a mirror image of the first element, converges such that the first end of the first element and the first end of the second element are in contact with each other, the second end of the first element and the second end of the second element Emitted, the tulip flower repeats in an annular fashion to form a ring with converged points that point inwards (toward the pupil), thus producing a U-shaped cup.

The third element is reduced in size than the first element, placed in a U-shaped cup and contacted on at least one side.

This shape may include all three elements, or optionally only the first two elements. This shape is repeated to encircle an annulus to form a ring with pointed convergent points inward (toward the pupil) for the first tulip flower print pattern layer, as shown in FIG. 4. Another pattern layer utilizes this shape, which is also repeated in an annular fashion to form a ring with pointed divergent inwards (toward the pupil) for the second tulip flower print pattern as shown in FIG. 5.

The combination of four patterns creates a design that is well matched with thick and dark outer rings, uncovered areas, and natural irises, harmonizing with both different layers and natural irises, and can provide depth, shimmer, or radiance to the lens's appearance. Create a lace-like structure with thick, long waves that randomly overlap so that there is an area where both layers overlap to create.

The combination of four patterns is shown in FIG. The first tulip flower-like print pattern of this design is about 85% to 95% of the diameter of the enhanced outer ring print pattern. Also, the second tulip flower print pattern is about 80% to 95% of the diameter of the enhanced outer ring print pattern.

In the eye, the pattern according to the invention provides an attractive design in which the eye is perceived to be larger and clearer.

Color contact lenses can be manufactured by applying ink directly onto a preformed contact lens. A preferred method for applying ink onto contact lenses according to this invention is through printing with ink, preferably aqueous ink, for example pad-transcription printing and / or inkjet printing.

The ink typically includes at least one colorant, binder polymer, and solvent. The ink may optionally include crosslinking agents, wetting agents, surfactants, monomers, polymerization initiators, antibacterial agents, antioxidants, anti-kogating agents, and other additives known in the art.

The colorant comprises at least one dye or preferably one pigment. Conventional and / or pearlescent pigments may be used in the present invention.

The solvent may be water (aqueous ink) or any suitable organic solvent (organic solvent based ink). Any known suitable solvent can be used so long as it can dissolve the binder in the ink of the present invention and help the stability of the colorant. Examples of preferred solvents include water, or water mixed with one or more co-solvents. Alternatively, organic solvents such as alcohols, glycols, ketones, esters, methyl ethyl ketone, cyclopentanone, and cyclohexanone can be used.

 "Binder polymer", as the term is known in the art, includes crosslinkable groups and may be applied by crosslinking agents or by chemical or physical means (eg, moisture, heating, UV irradiation or otherwise). Refers to a crosslinkable polymer that, when initiated by it, can crosslink to capture or bind the colorant onto or into the contact lens.

The term crosslinkable group is used herein in a broad sense and is intended to include, for example, functional groups and light crosslinkable or thermally crosslinkable groups well known to those skilled in the art. Matched pairs of crosslinkable groups are known under reaction conditions such as, for example, redox conditions, dehydration condensation conditions, addition conditions, substitution (or displacement) conditions, free radical polymerization conditions, 2 + 2 cyclo-addition conditions, dils Can form covalent bonds or linkages under Diels-Alder reaction conditions, Ring Opening Metathesis Polymerization conditions, vulcanization conditions, cationic crosslinking conditions, and epoxy curing conditions It is well known in the art, for example, that an amino group can be covalently bound to an aldehyde (the Schiff base and amino group that can be formed from an aldehyde group can be further reduced); a hydroxyl group and an amino group May be covalently bonded to a carboxyl group, a carboxyl group and a sulfo group may be covalently bonded to a hydroxyl group, a mercapto group may be covalently bonded to an amino group; or Carbon-carbon double bonds may be covalently bonded with other carbon-carbon double bonds Exemplary covalent bonds or chains formed between pairs of crosslinkable groups include, but are not limited to, alkanes (carbon-carbon single bonds), Alkenes (carbon-carbon double bonds), esters, ethers, acetals, ketals, vinyl ethers, carbamates, ureas, amines, amides, enamines, imines, oximes, amidines, iminoesters, carbonates, orthoesters, phospho Carbonates, phosphinates, sulfonates, sulfinates, sulfides, sulfates, disulfides, sulfinamides, sulfonamides, thioesters, aryls, silanes, siloxanes, heterocycles, thiocarbonates, thiocarbamates, and phosphonamides .

Exemplary crosslinkable groups include, but are not limited to, hydroxyl groups, amine groups, amide groups, sulfhydryl groups, -COOR (R and R 'are hydrogen or C ₁ to C ₈ alkyl groups), halides (chlorides, bromide , Iodide), acyl chloride, isothiocyanate, isocyanate, monochlorotriazine, dichlorotriazine, mono- or di-halogen substituted pyridine, mono- or di-halogen substituted diazine, phosphoramidite , Maleimide, aziridine, sulfonyl halides, hydroxysuccinimide esters, hydroxysuccinimide esters, imido esters, hydrazines, axidonitrophenyl groups, azides, 3- (2-pyridyl dithio) Propionamide, glyoxal, aldehyde, epoxy, olefin unsaturated radicals.

The binder polymer in the ink can be any polymer compatible with the lens material. The binder polymer is a hydroxy C ₁ to C ₆ alkyl ester of vinyl alcohol, vinyl butyral, vinyl acetate, acrylic acid, methacrylic acid, acrylic acid and methacrylic acid, and amino C ₁ to C ₈ alkyl ester of acrylic and methacrylic acid. And glycerol esters of acrylic and methacrylic acid, vinylpyrrolidone, vinyl chloride, hydroxyethyl methacrylate, dimethylacrylamide, and the like, by polymerization of monomers. To form various copolymers, mixtures of these different monomers can be made. Other polymers may include cellulose resins, polyesters, polyurethanes, polyureas, or polyamides having at least one crosslinkable group. Preferably, the monomers used in the binding polymer preparation are the same monomers used in lens preparation.

Inks for printing the color lenses of the present invention can be prepared according to any known suitable method. For example, a solution of a binding polymer and a solvent is first prepared, and this solution is mixed with a paste containing a colorant to form an ink.

Pad transcription printing is well known in the art (eg, US Pat. Nos. 3,536,386 (Spivack); 4,582,402 and 4,704,017 (Knapp); 5,034,166 (Rawlings et al., Incorporated herein by reference in its entirety). ) Reference). A typical example of such printing is as follows. The image is etched into the metal to form a cliche. Such cliché is placed in the printer. Once located in the printer, the cliché is inked across the image by an open inkwell doctoring system or by a closed ink cup slide. The silicon pad then lifts the ink worked image from the cliché and transfers the image to the contact lens. The silicone pads are made of a material comprising silicon whose elasticity can vary. The nature of the silicone material allows the ink to be temporarily adhered to the pad and, when in contact with the contact lens or mold, to be completely released from the pad. Suitable pad-transcribed printing structures include, but are not limited to, Tampo-type printing structures (Tampo vario 90/130), rubber stamps, thimble, doctor blades, direct printing, or transfer, as known in the art. Printing.

Any known suitable silicone pad can be used in the present invention. Silicone pads are commercially available. However, other pads may provide different print qualities. Those skilled in the art will know how to select a pad for a given ink.

The cliché may be made of ceramic or metal (eg steel). If the cliché is made of steel, it will be desirable to neutralize the pH of the aqueous ink (eg, the pH is adjusted to 6.8 to 7.8) by adding a buffer (eg, such as phosphate salt). According to any method known to those skilled in the art, the image may be etched into the cliché, for example by chemical etching or laser ablation or otherwise. It may also be desirable to clean the cliché after use, using standard cleaning techniques known to those skilled in the art, such as submersion in solvents, sonication, or mechanical ablation.

It may be printed on the front (convex) and rear (concave) surfaces of the lens, but it will be understood that printing of the front surface is presently preferred.

Printing lenses using an inkjet printing process is disclosed in published US patent applications 2001/0050753, 2001/0085934, 2003/0119943, and 2003/0184710, which are incorporated herein by reference in their entirety. It is described in

According to a preferred embodiment, the color contact lens may further comprise a transparent coating covering at least the colored area of the lens. The transparent coating can be formed on the colored area by applying a layer of the transparent polymerizable solution without any colorant onto the lens surface with the color print and then polymerizing the layer of the transparent polymerizable solution. . The clear coat can minimize leaching of the colorant and improve the wearer's comfort.

Alternatively, the color contact lenses of the present invention can be made according to a print-on-molded process similar to that described in US Pat. No. 5,034,166 (Rawlings et al.), Incorporated herein by reference. Ink may first be applied onto the molding surface of one or both mold portions by using pad transfer printing (or pad printing) or ink jet printing to form a colored coat (with color image). A colored coat can be applied on the molding surface forming the back (concave) surface of the contact lens or on the molding surface forming the front surface of the contact lens or on both mold portions. Preferably, a colored coat (with color image) is applied on the molding surface forming the front surface of the contact lens.

Optionally, before applying ink by pad transfer printing, a transferable coating may be applied to the molding surface of the mold. The transfer coating is intended to describe a coating that can be detached from the molding surface of the mold and can be integrated with the body of the contact lens molded in the mold. The transferable coating may be applied to the molding surface of the mold by any suitable technique, such as, for example, spraying, printing, swabbing, or dipping. The transferable coating can be prepared from a solution containing the polymerizable component and without any colorant. For example, a transferable coating having a substantially uniform thickness (less than 200 microns) may be applied to a molding surface with a solution having a (no colorant) composition of the ink to be used or a solution of the prepolymer or lens-forming material to be used. It can be prepared by spraying. Such transferable coatings may be optionally dried or cured to form a transferable transparent film (without any pigment but optionally with a dye including a reactive dye). One or more colored patterns can then be printed onto such a transferable coating or film. By applying the transferable coating prior to printing, it is possible to make a colored lens in which the printed colored pattern is embedded just below the film derived from the transferable coating. Such lenses can be more comfortable to wear and have a significantly less chance of colorant leaking out of the color lens.

After printing the ink of the invention on the molding surface of the mold, the printed ink can be cured by UV or other chemical radiation to form a colored film according to the invention. It may be desirable to cure the printed ink chemically to the extent possible to minimize the loss of a clear outline of the pattern of the colored coat resulting from subsequent filling of the lens-forming material.

Lens molds for making contact lenses are well known to those skilled in the art and are used, for example, in casting molding or spin casting. For example, a mold (for casting moldings) generally comprises at least two mold sections (or portions) or mold halves, ie first and second mold halves. The first mold half forms a first molding (or optical) surface, and the second mold half forms a second molding (or optical) surface. The first and second mold halves are configured to receive each other such that a lens forming cavity is formed between the first molding surface and the second molding surface. The molding surface of the mold half is the co-forming surface of the mold and is in direct contact with the lens-forming material.

Mold section manufacturing methods for casting-molding contact lenses are generally well known to those skilled in the art. The process of the present invention is not limited to any particular method of forming a mold. In fact, any method of forming a mold can be used in the present invention. The first and second mold halves can be formed through various techniques, such as injection molding or lashing. Examples of suitable processes for forming the mold half are described in US Pat. No. 4,444,711 (Schad), which is also incorporated herein by reference; 4,460,534 (Boehm et al.); 5,843,346 to Morrill; And 5,894,002 (Boneberger et al.).

Virtually any material known in the art for making molds can be used to make molds for making contact lenses. For example, polyethylene, polypropylene, polystyrene, PMMA, Topas ^® COC grade 8007-S10 (clear amorphous copolymer of from Ticona GmbH and New Jersey in Frankfurt Summit, ethylene and norbornene), or other like Polymeric materials can be used. Other materials that allow UV light transmission, such as quartz glass and sapphire, may be used.

Any lens-forming material can be used in the present invention, which is not currently considered an important part of this aspect of the present invention. Lens forming materials suitable for the manufacture of contact lenses are exemplified by those skilled in the art by numerous issued US patents and their families. Preferred lens-forming materials can form hydrogels. The lens-forming material may comprise one or more prepolymers, optionally one or more vinylic monomers and / or macromonomers, and optionally further comprise various components, such as photoinitiators, visible colorants, fillers, and the like. can do. It should be understood that any silicone-containing prepolymer or any silicon-free prepolymer may be used in the present invention.

A preferred group of lens-forming materials are water soluble and / or meltable prepolymers as described above. It may be advantageous for the lens-forming material to mainly comprise one or more prepolymers, preferably in substantially pure form (eg, purified by ultrafiltration). As such, after crosslinking / polymerization with actinic radiation, the contact lens may be substantially free of further subsequent purification, such as complex extraction of the unpolymerized component. In addition, crosslinking / polymerization can take place without solvent or in aqueous solution, so no subsequent solvent exchange or hydration step is required.

Those skilled in the art will appreciate how chemically or thermally the lens-forming material is cured within the lens-forming cavity to form a contact lens.

In a preferred embodiment, where the lens-forming material is a solution, solvent-free liquid, or melt of one or more prepolymers, optionally in the presence of other components, a reusable mold is used and the lens-forming material is a spatial source of chemical radiation. It is cured chemically under the restriction to form a color contact lens. Examples of preferred reusable molds are described in US patent application Ser. No. 08 / 274,942, filed Jul. 14, 1994, 10 / 732,566, filed Dec. 10, 2003, which is incorporated by reference in its entirety. 10 / 721,913, filed November 25, and US Pat. No. 6,627,124.

In this case, the lens-forming material is introduced into a mold consisting of two mold halves, and the two mold halves have a thin gap of annular design arranged therebetween without being in contact with each other. This gap is connected to the mold cavity, so that excess lens material can flow into the gap and be removed. Instead of a polypropylene mold that can only be used once, a reusable quartz, glass, or sapphire mold can be used, which, after production of the lens, can be quickly cleaned and dried, using water or a suitable solvent, This is because it is possible to effectively remove uncrosslinked prepolymers and other residues. There are reusable mold can be made of Topas ^® COC grade from Ticona GmbH of Frankfurt, Germany and New Jersey, USA, in Summit 8007-S10 (clear amorphous copolymer of ethylene and norbornene). Since the mold halves do not touch each other in the lens production area, ie the cavity or the actual mold side, damage as a result of contact is excluded. This ensures a long service life of the mold, which in particular also ensures a large reproducibility of the contact lenses produced.

The two opposing surfaces of the contact lens (front surface and back surface) are formed by the two molding surfaces, while the edges are formed by the spatial limitations of actinic illumination, not by the mold wall. Typically, only the lens-forming material in the area bounded by the two molding surfaces and the projection of the well-formed peripheral boundary of the spatial constraints is crosslinked, while outside of and just around the peripheral boundary of the spatial constraints. No lens-forming material is crosslinked, whereby the edge of the contact lens must be a smooth and precise replica of the dimensions and geometry of the spatial limitations of the chemical radiation. Such methods of making contact lenses are described in US patent application Ser. No. 08 / 274,942, filed Jul. 14, 1994, 10 / 732,566, filed Dec. 10, 2003, which are incorporated by reference in their entirety. 10 / 721,913, filed November 25, 2003, and US Pat. No. 6,627,124.

As described in US patent application Ser. No. 08 / 274,942 and US Pat. No. 6,627,124, filed on July 14, 1994, which is incorporated herein by reference in its entirety, at least in part. By masking an impermeable mold or by US Patent Application No. 10 / 732,566 filed Dec. 10, 2003, which is incorporated herein by reference in its entirety; / 721,913, and US Pat. No. 6,627,124, in at least one aspect, a mold portion that is highly permeable to the form of energy causing crosslinking and is impermeable or poorly permeable to such energy. With the mold having, the spatial limitations of the chemical radiation (or the spatial constraints of the energy impact) can be achieved. The energy used for crosslinking is radiation energy, in particular UV radiation, gamma radiation, electron radiation or thermal radiation, and on the one hand to achieve good constraints and on the other hand to achieve efficient use of energy, radiation energy is desirable. To substantially parallel beams.

It should be understood that the ink of the present invention should have good transferability of the colored coat from the mold to the contact lens and good adhesion to the molded lens. The resulting color contact lens is inherently smooth and continuous on the surface comprising the color film.

Good transferability and adhesion can result mainly from the formation of an interpenetrating network during curing of the lens-forming material in the mold. Without limiting the present invention to any particular mechanism or theory, it is contemplated that the ink binder of the present invention may form interpenetrating networks (IPN's) with the lens material of hydrogel lenses. Bonding the ink of the present invention to the lens by IPN formation does not require the presence of reactive functional groups in the lens polymer. The lens-forming material is crosslinked in the presence of the crosslinked binder polymer in the colored film to form an IPN. It will be appreciated that during the curing of the colored coating to form the colored film, some (residual) ethylenically unsaturated groups in the binding polymer may not be consumed. This remaining ethylenically unsaturated group can crosslink to react the binder polymer to the lens material during curing of the lens-forming material in the mold.

It will also be appreciated that by direct chaining (bond formation) between the binder polymer and the lens polymer, the adhesion between the lens and the ink can be improved. For example, binder polymers comprising nucleophilic groups can react with lens polymers containing electrophilic groups, such as epoxy, anhydrides, alkyl halides, and isocyanates. Alternatively, the ink can be bonded to the lens by having an electrophilic group in the ink binder polymer and a nucleophilic group in the lens polymer. By including both nucleophilic and electrophilic functionality in the binder polymer, a curable ink can also be made.

In another aspect, the invention includes a method of making a color contact lens, the method comprising:

(a) providing a preformed contact lens; And

(b) applying a first print pattern of opaque color dots of a first color on at least one of the front and back surfaces of the contact lens, wherein the first print is an annular ring of a gradient dot matrix;

(c) applying a second print pattern of opaque color dots of a second color on the surface of the contact lens, wherein the second print is an annular ring of dotted pattern, and the annular ring of dotted pattern is irregularly distributed in an annular shape Comprising a cluster of phosphorus dotted shapes, the dotted shape consisting of a large number of small dots, the annular ring of dotted pattern having unsmooth-inner and outer boundaries, the second print being located inside the first print, The first color and the second color are different or the same, and the first and second prints comprise steps concentric with the center of the contact lens.

In another aspect, the present invention includes a method of making a color contact lens, the method comprising:

(a) providing a mold comprising a first mold half having a first molding surface forming a front surface of the contact lens and a second mold half having a second molding surface forming a rear surface of the contact lens The first and second mold halves are configured to receive each other, thereby forming a contact lens forming cavity between the first molding surface and the second molding surface;

(b) applying a second print pattern of opaque color dots of a second color onto at least one of the molding surfaces of the lens mold by using pad-transcription or inkjet printing techniques, wherein the second print is formed of a dotted pattern. An annular ring, wherein the annular ring of the dotted pattern comprises an irregularly distributed cluster of annular shapes, the dotted shape consists of a large number of small dots, and the annular ring of the dotted pattern has a smooth-inner and outer boundary Branches, steps, and

(c) applying a first print pattern of opaque color dots of a first color onto the surface of the mold by using pad-transcription or inkjet printing techniques, wherein the first print is an annular ring of a gradient dot matrix, The second print is located inside the first print, wherein the first and second colors are different or the same, and the first and second prints are concentric with the center of the contact lens.

Any known suitable lens made of any lens-forming material can be used for the practice of the present invention. Preferably, hydrogel lenses or silicone-containing hydrogel lenses are used for the practice of the present invention. Examples of preferred lenses include: but are not limited to the lenses described in US Pat. No. 4,668,240 to Loshaek (incorporated herein by reference in its entirety); Lenses prepared from water-soluble crosslinkable poly (vinyl alcohol) prepolymers as described in US Pat. Nos. 5,583,163 and 6,303,687 (which are incorporated herein by reference in their entirety); U.S. Patent No. 6,479,587 (incorporated herein by reference in its entirety) and U.S. Patent Application, filed on November 25, 2003, entitled "Crosslinkable polyurea prepolymers" and pending; Lenses made of a water soluble crosslinkable polyurea prepolymer as described in 60 / 525,100, and the like. It will be appreciated that any commercially available lens, such as, for example, FOCUS DAILIES®, ACUVUE®, etc., may be used for the practice of the present invention.

While various embodiments of the invention have been described using specific terms, apparatus, and methods, such description is for illustrative purposes only. The words used are words related to description rather than limitation. It will be understood that variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention as set forth in the claims below. In addition, it will be understood that aspects of the various embodiments may be interchanged both in whole or in part. Accordingly, the spirit and scope of the appended claims should not be limited to the description of the preferred versions contained herein.

Claims (14)

A color contact lens, comprising a first print of a first color and a second print of a second color, wherein the first print is an annular ring of a gradient dot matrix, and the second print is an annular ring of a dotted pattern, wherein The annular ring of the dotted pattern comprises a cluster of regular or irregular shapes distributed annularly, the regular or irregular shape consisting of a large number of circular dots, and the annular ring of the dotted pattern has a smooth-inner and outer boundary. Wherein the second print is located inside the first print, the first color and the second color are different or the same, and the first print and the second print are concentric with the center of the contact lens. , Color contact lenses. The method of claim 1,
And the first print has a color selected from the group consisting of black, gray, brown and blue. The method of claim 1,
And the second print has a color selected from the group consisting of black, gray, brown and blue. The method of claim 1,
The outer contact edge of the first print has a diameter of about 12.5 mm to about 15 mm, and the width of the first print is about 0.8 mm to about 3.5 mm. The method of claim 4, wherein
The color contact lens of claim 1, wherein the first print has a width of about 2.0 mm to about 3.0 mm. The method of claim 1,
And the width of the dotted annular ring pattern is about 30 to 90% of the width of the annular ring of the gradient dot matrix. The method of claim 1,
The dotted annular ring pattern comprises pearlescent colored elements, the pearlescent colored elements contacting the contact with a desired amount of pearlescent to impart at least one pearlescent pigment to the wearer's eye. A color contact lens, comprising an amount sufficient to provide an internal starburst pattern of the lens. The method of claim 1,
Further comprising a third print of a third color, the third print being a first tulip flower ring pattern having a shape comprising two elements, the first element being a thicker center and a thinner first end and Serpentine shape with second end; The second element is a mirror image of the first element, converges such that the first end of the first element and the first end of the second element are in contact with each other, the second end and the second element of the first element. The second end of the divergence is divergent, forming a ring with converged dots that the tulip flower is annularly encircled to point inwardly, wherein the first color, the second color and the third color are different or the same And wherein the first print, the second print, and the third print are concentric with the center of the contact lens. The method of claim 8,
And the third print has a color selected from the group consisting of blue, gray, black, brown, blue, cyan, purple, blue-purple, aqua, orange, yellow, hazel and green. The method of claim 8,
Further comprising a fourth print of a fourth color, said fourth print being a second tulip flower ring pattern having a shape comprising two elements, said first element being a thicker center and a thinner first end and Serpentine shape with second end; The second element is a mirror image of the first element, converges such that the first end of the first element and the first end of the second element are in contact with each other, the second end and the second element of the first element. The second end of the divergence is divergent and forms a ring with converged points that the tulip flower repeats in an annular fashion to point outwards, the first tulip flower ring pattern annular ring and the second tulip flower ring pattern being the same The second tulip flower ring pattern has an outer diameter, the inner diameter of the first tulip flower ring pattern is less than or equal to the inner diameter of the first tulip flower ring pattern, the first color, the second color, the third color and the fourth color is Color contact lenses different or the same and wherein said first print, said second print, said third print and said fourth print are concentric with the center of said contact lens. The method of claim 10,
And the fourth print has a color selected from the group consisting of blue, gray, black, brown, blue, cyan, purple, blue-purple, aqua, orange, yellow, hazel and green. The method of claim 9,
And the second tulip flower ring pattern has an inner diameter smaller than the inner diameter of the first tulip flower ring pattern. As a method for manufacturing a color contact lens,
(a) providing a preformed contact lens; And
(b) applying a first print pattern of opaque color dots of a first color on at least one of the front and back surfaces of the contact lens, wherein the first print is an annular ring of a gradient dot matrix; step,
(c) applying a second print pattern of opaque color dots of a second color on the surface of the contact lens, wherein the second print is an annular ring of dotted pattern, and the annular ring of dotted pattern is annular A cluster of distributed regular or irregular shapes, the regular or irregular shape consisting of a large number of circular dots, the annular ring of the dotted pattern having an unsmooth-inner and outer boundary, and the second print Located inside the first print, wherein the first color and the second color are different or the same, wherein the first print and the second print are concentric with the center of the contact lens. As a method for manufacturing a color contact lens,
(a) providing a mold comprising a first mold half body having a first molding surface forming a front surface of the contact lens and a second mold half body having a second molding surface forming a rear surface of the contact lens Wherein the first and second mold halves are configured to receive each other, thereby forming a contact lens forming cavity between the first molding surface and the second molding surface;
(b) applying a second print pattern of opaque color dots of a second color onto at least one of the molding surfaces of the lens mold by using pad-transcription or inkjet printing techniques, wherein the second print is a dotted pattern. Wherein the annular ring of the dotted pattern comprises a cluster of regular or irregular shapes distributed annularly, the regular or irregular shape consists of a large number of circular dots, and the annular ring of the dotted pattern is smooth- Not having internal and external boundaries, and
(c) applying a first print pattern of opaque color dots of a first color onto the surface of the mold by using pad-transcription or inkjet printing techniques, wherein the first print is an annular ring of a gradient dot matrix. Wherein the second print is located inside the first print, the first color and the second color are different or the same, and the first print and the second print are concentric with the center of the contact lens. , Comprising the steps.

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