TW201934436A - Contact lens package barrier and method for manufacturing the same - Google Patents

Abstract

The present disclosure also relates to a contact lens package barrier, the contact lens package barrier includes a substrate and a photocatalyst film layer forming on outer surface or inner surface of the substrate. The present disclosure also relates to a method for manufacturing the contact lens package barrier and another contact lens package barrier and the method for the same.

Description

Ophthalmic lens packaging box body and preparation method thereof

The invention relates to the field of ophthalmic lenses, in particular to an ophthalmic lens packaging box body and a preparation method thereof.

Hydrated ophthalmic lenses need to be sent to a packaging machine for heat sealing before leaving the factory (the lenses are placed in a polypropylene (PP) cup containing a maintenance solution and heat sealed with an aluminum film), and then subjected to wet heat sterilization. However, it is difficult to control the cleanliness during the process of making the PP cup, so the lens may be contaminated by the original PP cup while waiting for sterilization, resulting in contamination of the final product.

In view of this, the present invention provides an ophthalmic lens packaging box body with self-cleaning ability and a preparation method thereof.

An ophthalmic lens packaging box body includes a substrate, and the ophthalmic lens packaging box body further includes a photocatalyst film layer formed on an outer surface and an inner surface of the substrate.

Further, the material of the substrate is at least one of polypropylene, polyethylene, polycarbonate, and polystyrene.

Further, the material of the photocatalyst film layer is at least one of nano-scale titanium dioxide, zinc oxide, cadmium sulfide, tungsten trioxide, ferric oxide, lead sulfide, tin dioxide, zinc sulfide, strontium titanate, and silicon dioxide. .

Further, the thickness of the photocatalyst film layer is 0.003 mm to 86 mm.

A method for preparing an ophthalmic lens packaging box body includes the following steps: providing a polymer material and injecting the polymer material into a substrate; and forming a photocatalyst film layer on a surface of the substrate.

Further, the photocatalyst film layer is formed by electroplating, electroless plating, or bonding.

An ophthalmic lens packaging box body includes a substrate, and the ophthalmic lens packaging box body further includes a photocatalyst particle dispersed in the substrate.

Further, in the ophthalmic lens packaging box body, the mass percentage occupied by the photocatalyst particles is 0.01% to 13%.

Further, the material of the substrate is at least one of polypropylene, polyethylene, polycarbonate, and polystyrene.

Further, the material of the photocatalyst particles is at least one of nano-sized titanium dioxide, zinc oxide, cadmium sulfide, tungsten trioxide, ferric trioxide, lead sulfide, tin dioxide, zinc sulfide, strontium titanate, and silicon dioxide.

A method for preparing an ophthalmic lens packaging box body includes the following steps: providing a polymer material and photocatalyst particles, and blending the polymer material and photocatalyst particles to obtain a mixture; and forming the eye by injection molding the mixture Pack the box with lenses.

Further, in the mixture, the mass percentage occupied by the photocatalyst particles is 0.01% to 13%, and the mass percentage occupied by the polymer material is 87% to 99.99%.

Further, the polymer material is made of at least one of polypropylene, polyethylene, polycarbonate, and polystyrene.

The ophthalmic lens packaging box body provided by the present invention forms a photocatalyst film layer on the outer surface and the inner surface of the substrate or disperses to form photocatalyst particles in the substrate. It can be transformed into chemical energy to promote the decomposition of organic matter such as bacteria. Therefore, the ophthalmic lens packaging box body provided by the present invention can achieve self-purification, thereby preventing the ophthalmic lens packaging box body from being polluted during the manufacturing process.

In order to further explain the technical means and effects adopted by the present invention to achieve the intended purpose of the present invention, the following describes in detail the packaging structure of the ophthalmic lens provided by the present invention and the preparation method thereof in combination with the preferred embodiments.

Referring to FIG. 1, a first embodiment of the present invention provides an ophthalmic lens packaging box body 100. The ophthalmic lens packaging box body 200 is used to seal ophthalmic lenses (not shown).

The ophthalmic lens packaging box 100 includes a substrate 10 and a photocatalyst film layer 20 formed on the outer surface and the inner surface of the substrate 10. Wherein, the substrate 10 includes a receiving groove 11 for receiving an ophthalmic lens (not shown).

The material of the substrate 10 is a polymeric material such as polypropylene (PP), polyethylene (PE), polycarbonate (PC), and polystyrene. In this embodiment, the material of the substrate 10 is polypropylene.

The thickness of the photocatalyst film layer 20 is 0.003 mm to 86 mm.

The photocatalyst film layer 20 is made of a photocatalyst material.

Among them, the photocatalyst material will convert light energy into chemical energy under the irradiation of light, and promote the decomposition of organic matter such as bacteria.

Specifically, when the photocatalyst film layer 20 on the surface of the substrate 10 is irradiated with light larger than the energy gap width of the photocatalyst film layer 20, electrons will transition from the valence band to the conductive band, thereby generating electron-hole pairs. The electrons are reducing, and the holes are oxidizing. The holes will react with OH- on the surface of the photocatalyst film layer 20 to form strongly oxidative ‧OH radicals. The electrons will react with oxygen molecules on the surface of the photocatalyst film layer 20. Combined to form superoxide ions (‧O ₂ ), the active ‧OH free radicals and superoxide ions can decompose microorganisms into carbon dioxide and water, thus achieving a purification effect.

Among them, pure photocatalyst materials can only absorb ultraviolet light, and photocatalyst materials that chelate other active catalytic materials can absorb visible light or even far-infrared light.

Specifically, the photocatalyst material may be nano-sized titanium dioxide (TiO ₂ ), zinc oxide (ZnO), cadmium sulfide (CdS), tungsten trioxide (tungsten trioxide, WO ₃ ), and trioxide. Iron trioxide (Fe ₂ O ₃ ), lead sulphide (PbS), tin dioxide (SnO ₂ ), zinc sulfide (ZnS), strontium titanate (SrTiO ₃ ), Silicon dioxide (silicon dioxide, SiO ₂ ) and other photocatalyst materials.

The first embodiment of the present invention further provides a method for preparing an ophthalmic lens packaging box body 100, including the following steps:

In the first step, a polymer material is provided and the polymer material is injection-molded into a substrate 10.

The material of the substrate 10 is a polymeric material such as polypropylene (PP), polyethylene (PE), polycarbonate (PC), and polystyrene. In this embodiment, the material of the substrate 10 is polypropylene.

Wherein, the substrate 10 includes a receiving groove 11 for receiving ophthalmic lenses (not shown).

In this embodiment, the substrate 10 is cup-shaped. Of course, in other embodiments, the substrate 10 may also have a shape other than a cup shape.

In a second step, a photocatalyst film layer 20 is formed on the outer surface and the inner surface of the substrate 10.

The photocatalyst film layer 20 can be formed on the surface of the substrate 10 by means of electroplating, electroless plating, or bonding.

The thickness of the photocatalyst film layer 20 is 0.003 mm to 86 mm.

The photocatalyst film layer 20 is made of a photocatalyst material.

Among them, the photocatalyst material will convert light energy into chemical energy under the irradiation of light, and promote the decomposition of organic matter such as bacteria.

Specifically, when the photocatalyst film layer 20 on the surface of the substrate 10 is irradiated with light larger than the energy gap width of the photocatalyst film layer 20, electrons will transition from the valence band to the conductive band, thereby generating electron-hole pairs. The electrons are reducing and the holes are oxidizing. The holes will react with OH- on the surface of the photocatalyst film layer 20 to form a strong oxidizing ‧OH radical, and the electrons will react with the oxygen on the surface of the photocatalyst film layer 20 The molecules combine to form superoxide ions (‧O ₂ ). The active ‧OH free radicals and superoxide ions can decompose microorganisms into carbon dioxide and water, thus achieving a purification effect.

Among them, pure photocatalyst materials can only absorb ultraviolet light, and photocatalyst materials that chelate other active catalytic materials can absorb visible light or even far-infrared light.

Specifically, the photocatalyst material may be nano-sized titanium dioxide (TiO ₂ ), zinc oxide (ZnO), cadmium sulfide (CdS), tungsten trioxide (tungsten trioxide, WO ₃ ), and trioxide. Iron trioxide (Fe ₂ O ₃ ), lead sulphide (PbS), tin dioxide (SnO ₂ ), zinc sulfide (ZnS), strontium titanate (SrTiO ₃ ), Silicon dioxide (silicon dioxide, SiO ₂ ) and other photocatalyst materials.

In this embodiment, the photocatalyst material is TiO ₂ , and the light used to achieve the purification effect is ultraviolet light.

Referring to FIG. 2, a second embodiment of the present invention further provides an ophthalmic lens packaging box body 200. The ophthalmic lens package box 200 is used for sealing ophthalmic lenses (not shown).

The ophthalmic lens packaging box 200 includes a substrate 10 and photocatalyst particles 30 dispersed in the substrate 10.

The substrate 10 includes a receiving groove 11 for receiving an ophthalmic lens (not shown).

In the ophthalmic lens packaging box body 200, the mass percentage of the photocatalyst particles 30 is 0.01% to 13%.

The material of the substrate 10 is a polymer material such as polypropylene (PP), polyethylene (PE), polycarbonate (PC), and polystyrene. In this embodiment, the material of the substrate 10 is polypropylene.

The photocatalyst particles 30 are made of a photocatalyst material. Among them, the photocatalyst material will convert light energy into chemical energy under the irradiation of light, and promote the decomposition of organic matter such as bacteria. Specifically, when the photocatalyst particles 30 on the surface of the substrate 10 are irradiated with light larger than the energy gap width of the photocatalyst particles 30, the electrons will transition from the valence band to the conductive band, thereby generating electron-hole pairs. The electrons are reducing and the holes are oxidizing. The holes will react with OH- on the surface of the photocatalyst particle 30 to form a strong oxidizing ‧OH radical, and the electrons will bind to oxygen molecules on the surface of the photocatalyst particle 30 Superoxide ions (‧O ₂ ) are formed, and the active ‧OH radicals and superoxide ions can decompose microorganisms into carbon dioxide and water, thereby achieving a purification effect.

Among them, pure photocatalyst materials can only absorb ultraviolet light, and photocatalyst materials that chelate other active catalytic materials can absorb visible light or even far-infrared light.

Specifically, the photocatalyst material may be nano-sized titanium dioxide (TiO ₂ ), zinc oxide (ZnO), cadmium sulfide (CdS), tungsten trioxide (tungsten trioxide, WO ₃ ), and trioxide. Iron trioxide (Fe ₂ O ₃ ), lead sulphide (PbS), tin dioxide (SnO ₂ ), zinc sulfide (ZnS), strontium titanate (SrTiO ₃ ), Silicon dioxide (silicon dioxide, SiO ₂ ) and other photocatalyst materials.

In this embodiment, the photocatalyst material is TiO ₂ , and the light used to achieve the purification effect is ultraviolet light.

The second embodiment of the present invention also provides a method for preparing an ophthalmic lens packaging box body 200, including the following steps:

In the first step, a polymer material and the photocatalyst particles 30 are provided, and the polymer material and the photocatalyst particles 30 are blended to obtain a mixture.

In the mixture, the mass percentage of the photocatalyst particles 30 is 0.01% to 13%, and the mass percentage of the polymer material is 87% to 99.99%.

The polymer material may be polypropylene (PP), polyethylene (PE), polycarbonate (PC), polystyrene, or the like. In this embodiment, the polymer material is polypropylene.

The photocatalyst particles 30 are made of a photocatalyst material. Among them, the photocatalyst material will convert light energy into chemical energy under the irradiation of light, and promote the decomposition of organic matter such as bacteria. Specifically, when the photocatalyst particles 30 on the surface of the substrate 10 are irradiated with light larger than the energy gap width of the photocatalyst particles 30, the electrons will transition from the valence band to the conductive band, thereby generating electron-hole pairs. The electrons are reducing and the holes are oxidizing. The holes will react with OH- on the surface of the photocatalyst particle 30 to form a strong oxidizing ‧OH radical, and the electrons will bind to oxygen molecules on the surface of the photocatalyst particle 30 Superoxide ions (‧O ₂ ) are formed, and the active ‧OH radicals and superoxide ions can decompose microorganisms into carbon dioxide and water, thereby achieving a purification effect.

Among them, pure photocatalyst materials can only absorb ultraviolet light, and photocatalyst materials that chelate other active catalytic materials can absorb visible light or even far-infrared light.

Specifically, the photocatalyst material may be nano-sized titanium dioxide (TiO ₂ ), zinc oxide (ZnO), cadmium sulfide (CdS), tungsten trioxide (tungsten trioxide, WO ₃ ), and trioxide. Iron trioxide (Fe ₂ O ₃ ), lead sulphide (PbS), tin dioxide (SnO ₂ ), zinc sulfide (ZnS), strontium titanate (SrTiO ₃ ), Silicon dioxide (silicon dioxide, SiO ₂ ) and other photocatalyst materials.

In this embodiment, the photocatalyst material is TiO ₂ , and the light used to achieve the purification effect is ultraviolet light.

In the second step, the mixture is injection-molded to form the ophthalmic lens package box 200.

The ophthalmic lens packaging boxes 100 and 200 provided by the present invention form a photocatalyst film layer 20 on the outer surface and the inner surface of the substrate 10 or disperse and form photocatalyst particles 30 in the substrate 10. Since the photocatalyst film layer 20 and the photocatalyst particles 30 are irradiated with light, they convert light energy into chemical energy, and promote the decomposition of organic matter such as bacteria. Therefore, the ophthalmic lens packaging boxes 100 and 200 provided by the present invention can realize self Purification, so as to prevent the ophthalmic lens packaging box body from being contaminated during the manufacturing process.

The above description is only the preferred embodiment of the present invention, and is not a limitation on the form of the present invention. Although the present invention is the preferred embodiment disclosed above, it is not intended to limit the present invention, and any skilled person familiar with the art Without departing from the scope of the technical solution of the present invention, when the technical content disclosed above can be used to make some changes or modifications to equivalent implementations of equivalent changes, as long as it does not depart from the technical solution of the present invention, according to the technical essence of the present invention Any simple modifications, equivalent changes, and modifications made to the above embodiments still fall within the scope of the technical solution of the present invention.

100,200‧‧‧Ophthalmic lens packing box body

10‧‧‧ Substrate

11‧‧‧Container

20‧‧‧Photocatalyst film layer

30‧‧‧photocatalyst particles

FIG. 1 is a cross-sectional view of an ophthalmic lens packaging box body provided by a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of an ophthalmic lens packaging box provided by a second embodiment of the present invention.

Claims (13)

An ophthalmic lens packaging box body includes a substrate, wherein the ophthalmic lens packaging box body further includes a photocatalyst film layer formed on an outer surface and an inner surface of the substrate. The ophthalmic lens packaging box according to claim 1, wherein the material of the substrate is at least one of polypropylene, polyethylene, polycarbonate, and polystyrene. The ophthalmic lens packaging box body according to claim 1, wherein the material of the photocatalyst film layer is nano-scale titanium dioxide, zinc oxide, cadmium sulfide, tungsten trioxide, ferric oxide, lead sulfide, and tin dioxide , At least one of zinc sulfide, strontium titanate, and silicon dioxide. The ophthalmic lens packaging box body according to item 1, wherein the thickness of the photocatalyst film layer is 0.003 mm to 86 mm. A method for preparing an ophthalmic lens packaging box body according to any one of claims 1-4, comprising the steps of: providing a polymer material and injection molding the polymer material into a substrate; and on the substrate A photocatalyst film layer is formed on the surface. The method for preparing an ophthalmic lens packaging box body according to item 5 of the claim, wherein the photocatalyst film layer is formed by electroplating, electroless plating, or bonding. An ophthalmic lens packaging box body includes a substrate, wherein the ophthalmic lens packaging box body further includes a photocatalyst particle dispersed in the substrate. The ophthalmic lens packaging box according to item 7 of the claim, wherein in the ophthalmic lens packaging box, the mass percentage of the photocatalyst particles is 0.01% to 13%. The ophthalmic lens packaging box body according to claim 7, wherein the material of the substrate is at least one of polypropylene, polyethylene, polycarbonate, and polystyrene. The ophthalmic lens packaging box body according to claim 7, wherein the material of the photocatalyst particles is nano-sized titanium dioxide, zinc oxide, cadmium sulfide, tungsten trioxide, ferric oxide, lead sulfide, tin dioxide, At least one of zinc sulfide, strontium titanate, and silicon dioxide. A method for preparing an ophthalmic lens packaging box body according to any one of claims 7-10, comprising the steps of: providing a polymer material and photocatalyst particles, and blending the polymer material and photocatalyst particles, Obtaining a mixture; and forming the ophthalmic lens packaging box body by injection molding. The method for preparing an ophthalmic lens packaging box body according to claim 11, wherein in the mixture, the mass percentage of the photocatalyst particles is 0.01% to 13%, and the mass percentage of the polymer material is It is 87% to 99.99%. The method for preparing an ophthalmic lens packaging box body according to claim 11, wherein the polymer material is made of at least one of polypropylene, polyethylene, polycarbonate, and polystyrene.