Scratch-proof and fingerprint-proof coating structure on surface of crystal beads

Abstract

The application discloses a crystal bead surface scratch-proof and fingerprint-proof coating structure and particularly relates to the technical field of decorative bead decoration. The surface activation layer is used for improving the surface energy of the base material and enhancing the adhesion of the subsequent coating. The coupling primer layer is used for constructing a chemical bridging layer through a silane coupling agent and improving the bonding strength between the base material and the hard coating. The transparent wear-resistant hard coating and the fingerprint-proof low-surface-energy top coating are arranged on the crystal bead surface scratch-proof and fingerprint-proof coating structure, so that the surface hardness of the crystal bead can be improved, the daily rubbing and scratching can be reduced, the fingerprint and oil stain residues can be reduced, the bead body can be kept transparent and bright, the multi-layer synergistic structure is more durable than a single coating, the crystal bead surface scratch-proof and fingerprint-proof coating structure is applicable to batch immersion coating, spraying and rolling coating processes, and industrial realizability is high.

Description

Technical Field

[0001] This invention relates to the field of decorative bead technology, and more specifically, to a scratch-resistant and fingerprint-resistant coating structure for the surface of crystal beads. Background Technology

[0002] Crystal beads are bead-shaped ornaments made of natural or artificial crystal. They combine decorative value, historical and cultural connotations, and modern craftsmanship aesthetics. However, existing crystal beads are prone to scratches, fogging, fingerprint residue, and oil stains during wearing, friction, and cleaning. Although a single hard coating can increase hardness, it is easy to crack or has poor adhesion. Although a single anti-fingerprint layer is oleophobic, it is not wear-resistant and quickly fails after use.

[0003] Therefore, there is an urgent need for a scratch-resistant and fingerprint-resistant coating structure on the surface of crystal beads to solve the above problems. Summary of the Invention

[0004] To overcome the aforementioned deficiencies of the prior art, embodiments of the present invention provide a scratch-resistant and fingerprint-resistant coating structure for the surface of crystal beads. By comprising a surface activation layer, a coupling base layer, a transparent wear-resistant hard coating, and a fingerprint-resistant low surface energy top coating, the present invention can improve surface hardness, reduce daily friction and scratches, and also reduce fingerprint and oil residue, maintaining the transparency and gloss of the beads. Furthermore, the multi-layer synergistic structure of the present invention is more durable than a single coating. The present invention is applicable to batch dip coating, spray coating, and roller coating processes, and has strong industrial feasibility, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a scratch-resistant and fingerprint-resistant coating structure for the surface of a crystal bead, comprising a surface activation layer, a coupling base coating layer disposed on the outer side of the surface activation layer, a transparent wear-resistant hard coating layer disposed on the outer side of the coupling base coating layer, and a fingerprint-resistant low surface energy top coating layer disposed on the outer side of the transparent wear-resistant hard coating layer. The surface activation layer is used to increase the surface energy of the substrate and enhance the adhesion of subsequent coatings; The coupling undercoat is used to construct a chemical bridging layer with a silane coupling agent to improve the bonding strength between the substrate and the hard coating. The transparent wear-resistant hard coating is used to form a dense inorganic or organic hybrid network, improving scratch resistance and surface hardness; The anti-fingerprint low surface energy topcoat is used to reduce surface energy, reduce the adhesion of sebum, sweat and dust, and improve ease of cleaning.

[0006] In a preferred embodiment, the coupling undercoat is made of one or more of γ-aminopropyltriethoxysilane, methyltrimethoxysilane, and methacryloxypropyltrimethoxysilane.

[0007] In a preferred embodiment, the transparent wear-resistant hard coating is made of one or more of silica sol, alumina sol, siloxane-modified resin, and inorganic nanoparticle dispersion.

[0008] In a preferred embodiment, the anti-fingerprint low surface energy top coating is made of one or more of fluorinated silanes, fluorinated polyether modified siloxanes, and fluorinated acrylic resins.

[0009] A method for preparing a scratch-resistant and fingerprint-resistant coating structure for the surface of a crystal bead, comprising the scratch-resistant and fingerprint-resistant coating structure for the surface of a crystal bead as described in any one of the above-mentioned methods, and the following steps: Step 1: Clean the surface of the crystal ball substrate to remove oil and dust; Step 2: Activate the surface of the crystal ball substrate using one of the following methods: plasma treatment, ozone treatment, or corona treatment; Step 3: Spray the coupling primer and dry at low temperature to form the coupling primer layer; Step 4: Spray a transparent hard coating liquid, and after leveling at room temperature, perform either heat curing or UV curing to form a transparent wear-resistant hard coating. Step 5: Dip the transparent wear-resistant hard coating surface with an anti-fingerprint topcoat liquid to form an anti-fingerprint low surface energy topcoat. Step 6: Perform post-curing to obtain the final product.

[0010] The technical effects and advantages of this invention are as follows: This invention, by incorporating a surface activation layer, a coupling base layer, a transparent wear-resistant hard coating, and an anti-fingerprint low surface energy top coating, can improve surface hardness, reduce daily friction and scratches, and also reduce fingerprint and oil residue, maintaining the transparency and gloss of the beads. Furthermore, the multi-layer synergistic structure of this invention is more durable than a single coating. This invention is suitable for batch dip coating, spray coating, and roller coating processes, and has strong industrial feasibility. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0012] The attached figures are labeled as follows: 1. Surface activation layer; 2. Coupling base layer; 3. Transparent wear-resistant hard coating; 4. Anti-fingerprint low surface energy top coating. Detailed Implementation

[0013] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0014] As attached Figure 1 As shown, the present invention provides a scratch-resistant and fingerprint-resistant coating structure for the surface of crystal beads, including a surface activation layer 1, a coupling base coating 2 disposed on the outer side of the surface activation layer 1, a transparent wear-resistant hard coating 3 disposed on the outer side of the coupling base coating 2, and a fingerprint-resistant low surface energy top coating 4 disposed on the outer side of the transparent wear-resistant hard coating 3. The surface activation layer 1 is used to improve the surface energy of the substrate and enhance the adhesion of subsequent coatings; The coupling undercoat 2 is used to construct a chemical bridging layer using a silane coupling agent to improve the bonding strength between the substrate and the hard coating. The transparent wear-resistant hard coating 3 is used to form a dense inorganic or organic hybrid network to improve scratch resistance and surface hardness. The anti-fingerprint low surface energy top coating 4 is used to reduce surface energy, reduce the adhesion of sebum, sweat and dust, and improve ease of cleaning.

[0015] The coupling undercoat 2 is made of one or more of γ-aminopropyltriethoxysilane, methyltrimethoxysilane, and methacryloyloxypropyltrimethoxysilane.

[0016] The transparent wear-resistant hard coating 3 is made of one or more of the following: silica sol, alumina sol, siloxane modified resin, and inorganic nanoparticle dispersion.

[0017] The anti-fingerprint low surface energy top coating 4 is made of one or more of fluorinated silanes, fluorinated polyether modified siloxanes, and fluorinated acrylic resins.

[0018] A method for preparing a scratch-resistant and fingerprint-resistant coating structure for the surface of a crystal bead, comprising the scratch-resistant and fingerprint-resistant coating structure for the surface of a crystal bead as described in any one of the above-mentioned methods, and the following steps: Step 1: Clean the surface of the crystal ball substrate to remove oil and dust; Step 2: Activate the surface of the crystal ball substrate using one of the following methods: plasma treatment, ozone treatment, or corona treatment; Step 3: Spray the coupling primer and dry at low temperature to form coupling primer layer 2; Step 4: Spray a transparent hard coating liquid, level it at room temperature, and then perform either heat curing or UV curing to form a transparent wear-resistant hard coating 3; Step 5: Dip the transparent wear-resistant hard coating 3 into the anti-fingerprint topcoat liquid to form an anti-fingerprint low surface energy topcoat 4; Step 6: Perform post-curing to obtain the final product.

[0019] The specific implementation method is as follows: When using this invention, the surface activation layer 1 is made by treating the surface of the crystal ball substrate with one of plasma treatment, ozone treatment, and corona treatment, which can improve the surface energy of the substrate and enhance the adhesion of subsequent coatings. The coupling undercoat 2 is made of one or more of γ-aminopropyltriethoxysilane, methyltrimethoxysilane, and methacryloxypropyltrimethoxysilane, and can construct a chemical bridging layer through a silane coupling agent to improve the bonding strength between the substrate and the hard coating. The transparent wear-resistant hard coating 3 is made of silica sol, alumina sol, siloxane modified resin, and inorganic nanoparticle dispersion. One or more of the following can be used to form a dense inorganic or organic hybrid network, improving scratch resistance and surface hardness. The anti-fingerprint low surface energy top coating 4 is made of one or more of fluorinated silanes, fluorinated polyether modified siloxanes, and fluorinated acrylic resins, which can reduce surface energy, reduce the adhesion of sebum, sweat and dust, and improve easy cleaning. This allows the present invention to improve surface hardness, reduce daily friction and scratches, and also reduce fingerprint and oil residue, keeping the beads transparent and bright. Moreover, the multi-layer synergistic structure of the present invention is more durable than a single coating. The present invention is suitable for batch dip coating, spray coating and roller coating processes, and has strong industrial feasibility.

[0020] Working principle of this invention: Refer to the instruction manual appendix Figure 1 When using this invention, by providing a surface activation layer 1, a coupling base layer 2, a transparent wear-resistant hard coating 3, and an anti-fingerprint low surface energy top coating 4, the invention can improve surface hardness, reduce daily friction and scratches, and also reduce fingerprint and oil residue, maintaining the transparency and gloss of the beads. Moreover, the multi-layer synergistic structure of this invention is more durable than a single coating. This invention is suitable for batch dip coating, spray coating, and roller coating processes, and has strong industrial feasibility.

[0021] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other. In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A scratch-resistant and fingerprint-resistant coating structure for the surface of crystal beads, comprising a surface activation layer (1), characterized in that: The surface activation layer (1) is provided with a coupling undercoat layer (2) on the outside, a transparent wear-resistant hard coating layer (3) is provided on the outside of the coupling undercoat layer (2), and an anti-fingerprint low surface energy topcoat layer (4) is provided on the outside of the transparent wear-resistant hard coating layer (3). The surface activation layer (1) is used to improve the surface energy of the substrate and enhance the adhesion of subsequent coatings; The coupling undercoat (2) is used to construct a chemical bridging layer with a silane coupling agent to improve the bonding strength between the substrate and the hard coating. The transparent wear-resistant hard coating (3) is used to form a dense inorganic or organic hybrid network to improve scratch resistance and surface hardness; The anti-fingerprint low surface energy top coating (4) is used to reduce surface energy, reduce the adhesion of sebum, sweat and dust, and improve easy cleaning.

2. The anti-scratch and anti-fingerprint coating structure for a crystal bead surface according to claim 1, characterized in that: The coupling undercoat (2) is made of one or more of γ-aminopropyltriethoxysilane, methyltrimethoxysilane, and methacryloyloxypropyltrimethoxysilane.

3. The anti-scratch and anti-fingerprint coating structure for a crystal bead surface according to claim 1, characterized in that: The transparent wear-resistant hard coating (3) is made from one or more of the following: silica sol, alumina sol, siloxane modified resin, and inorganic nanoparticle dispersion.

4. The anti-scratch and anti-fingerprint coating structure for a crystal bead surface according to claim 1, characterized in that: The anti-fingerprint low surface energy top coating (4) is made of one or more of fluorinated silanes, fluorinated polyether modified siloxanes, and fluorinated acrylic resins.

5. A method for preparing a scratch-resistant and fingerprint-resistant coating structure on the surface of a crystal bead, characterized in that, The invention comprises a scratch-resistant and fingerprint-resistant coating structure for a crystal bead surface as described in any one of claims 1-4, and the following steps: Step 1: Clean the surface of the crystal ball substrate to remove oil and dust; Step 2: Activate the surface of the crystal ball substrate using one of the following methods: plasma treatment, ozone treatment, or corona treatment; Step 3: Spray the coupling primer and dry at low temperature to form the coupling primer layer (2). Step 4: Spray a transparent hard coating liquid, level it at room temperature, and then perform either heat curing or UV curing to form a transparent wear-resistant hard coating (3). Step 5: Dip the anti-fingerprint topcoat liquid onto the surface of the transparent wear-resistant hard coating (3) to form an anti-fingerprint low surface energy topcoat (4). Step 6: Perform post-curing to obtain the final product.

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