Shell, preparation method thereof and electronic equipment

Abstract

The invention provides a shell, a preparation method thereof and electronic equipment. The shell comprises a substrate and a first ink layer, wherein the first ink layer is arranged at a preset position of a first surface of the substrate; the first ink layer is a thermochromic ink layer. The color of the first ink layer of the shell can be changed according to the change of the environment temperature, so that the real-time and on-site environment temperature can be intuitively known.

Description

Technical Field

[0001] The present disclosure relates to the field of electronic equipment, and in particular to a housing and a preparation method thereof, and electronic equipment. Background Art

[0002] With the increasing popularity of mobile electronic devices, especially handheld mobile devices, such as smart watches, bracelets and other smart wearable products, people have higher and higher requirements for product functions. For example, users have more and more demands for product monitoring functions. At present, most smart wearable products cannot intuitively monitor the real-time ambient temperature, which makes it difficult for users to intuitively and effectively judge the ambient temperature, especially outdoor workers cannot intuitively judge the ambient temperature and its impact on human comfort. Summary of the invention

[0003] In order to solve the problems existing in the related art, the present disclosure provides a housing and a preparation method thereof, and an electronic device.

[0004] According to a first aspect of an exemplary embodiment of the present disclosure, there is provided a housing, comprising:

[0005] Base,

[0006] The first ink layer is disposed at a preset position on the first surface of the substrate; the first ink layer is a thermochromic ink layer.

[0007] In some exemplary embodiments, the first ink layer is disposed around an edge of the first surface of the substrate with a preset width.

[0008] In some exemplary embodiments, the raw materials of the first ink layer include, by weight percentage:

[0009]

[0010] In some exemplary embodiments, the raw materials of the thermochromic mucus include, by weight percentage:

[0011] The second auxiliary agent 7.96~11.36%,

[0012] Pigment 85.10~90.17%,

[0013] The second solvent is 1.87-3.54%.

[0014] In some exemplary embodiments, the second auxiliary agent includes saturated hydroxyl polyester and / or glyceride;

[0015] and / or,

[0016] The colorant includes one or more of the following:

[0017] Methyl blue, carbon black, carmine, calcium carbonate, titanium oxide, iodized salts and cobalt salts.

[0018] In some exemplary embodiments, the housing further comprises:

[0019] A second ink layer, disposed on a second surface of the first ink layer away from the substrate;

[0020] The third ink layer is disposed on a third surface of the second ink layer away from the first ink layer.

[0021] In some exemplary embodiments, the color of the second ink layer is off-white, and the color of the third ink layer is black.

[0022] In some exemplary embodiments, the thickness of the first ink layer is 15-20 μm.

[0023] In some exemplary embodiments, the thickness of the second ink layer is 8-12 μm, and / or the thickness of the third ink layer is 10-15 μm.

[0024] According to a second aspect of an exemplary embodiment of the present disclosure, a method for preparing a housing is provided, the method comprising:

[0025] providing a base of the housing;

[0026] A first ink is coated at a preset position on the first surface of the substrate, and after drying and curing under a first preset condition, a first ink layer is formed; wherein the first ink layer is a thermochromic ink layer.

[0027] In some exemplary embodiments, the first ink layer is disposed around an edge of the first surface of the substrate with a preset width.

[0028] In some exemplary embodiments, the first ink includes the following components expressed in weight percentage:

[0029]

[0030] In some exemplary embodiments, the thermochromic mucus includes the following components expressed in weight percentage:

[0031] The second auxiliary agent 7.96~11.36%,

[0032] Pigment 85.10~90.17%,

[0033] The second solvent is 1.87-3.54%.

[0034] In some exemplary embodiments, the second auxiliary agent includes saturated hydroxyl polyester and / or glyceride.

[0035] In some exemplary embodiments, the colorant includes one or more of the following:

[0036] Methyl blue, carbon black, carmine, calcium carbonate, titanium oxide, iodized salts and cobalt salts.

[0037] In some exemplary embodiments, the first preset condition includes: a first preset temperature of 80-120° C., and a first preset time of 4-6 minutes.

[0038] In some exemplary embodiments, applying the first ink includes: applying the first ink by silk screen printing; wherein the aperture size of the silk screen printing plate is 300-400 meshes, and the number of printing times is 2-4 times.

[0039] In some exemplary embodiments, the preparation method further comprises:

[0040] Applying a second ink on a second surface of the first ink layer away from the substrate, and drying and curing the second ink layer under a second preset condition;

[0041] A third ink is coated on a third surface of the second ink layer away from the first ink layer, and after drying and curing under a third preset condition, a third ink layer is formed.

[0042] In some exemplary embodiments, the second preset condition includes: the second preset temperature is 80-120° C., and the second preset time is 4-6 minutes; the third preset condition includes: the third preset temperature is 140-160° C., and the third preset time is 25-35 minutes.

[0043] In some exemplary embodiments, the color of the second ink layer is off-white, and the color of the third ink layer is black.

[0044] In some exemplary embodiments, the thickness of the first ink layer is 15-20 μm.

[0045] In some exemplary embodiments, the thickness of the second ink layer is 8-12 μm, and / or the thickness of the third ink layer is 10-15 μm.

[0046] According to a third aspect of an exemplary embodiment of the present disclosure, an electronic device is provided. The electronic device includes the above-mentioned housing.

[0047] The beneficial effects of the present disclosure include but are not limited to: the shell provided by the present disclosure has a first ink layer set at a preset position on the base of the shell, and the first ink layer is a thermochromic ink layer, and the first ink layer can produce color changes according to changes in ambient temperature. When the shell is applied to electronic devices, such as the screen cover of a smart wearable product, the user can intuitively know the real-time ambient temperature based on the color of the first ink layer on the screen cover that changes with the ambient temperature, and make judgments on the quality of the environment, which brings a new health experience to the user and enriches the color effect of the smart wearable product. In addition, due to the difference between human body temperature and ambient temperature, when the user touches the preset position on the screen cover where the first ink layer is set, the color change caused by human touch can also be realized, which enhances the interaction between the user and the product and brings a new experience.

[0048] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The accompanying drawings incorporated into the specification and constituting a part of the specification illustrate embodiments of the present disclosure and are used together with the description to explain the principles of the embodiments of the present disclosure. In these drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the present disclosure, rather than all embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative work.

[0050] Figure 1 is a schematic diagram of a housing of an exemplary embodiment of the present disclosure;

[0051] Figure 2 A cross-sectional schematic diagram of a preset width of a shell edge according to an exemplary embodiment of the present disclosure;

[0052] Figure 3 It is a schematic flow chart of a method for preparing a shell according to an exemplary embodiment of the present disclosure;

[0053] Figure 4 The method for preparing a shell according to an exemplary embodiment of the present disclosure also includes a flow chart. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solution and advantages of the present disclosure clearer, the technical solution of the present disclosure will be clearly and completely described in combination with the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure. It should be noted that the embodiments in the present disclosure and the features in the embodiments can be arbitrarily combined with each other without conflict.

[0055] At present, most smart wearable products cannot intuitively monitor the real-time ambient temperature, which makes it difficult for users to intuitively and effectively judge the ambient temperature. In particular, outdoor workers are unable to intuitively judge the ambient temperature and its impact on human comfort.

[0056] Based on this, Figure 1 As shown, an exemplary embodiment of the present disclosure provides a housing 10, which includes: a substrate 20, and a first ink layer 30, wherein the first ink layer 30 is disposed at a preset position on the first surface of the substrate; the first ink layer 30 is a thermochromic ink layer.

[0057] A first ink layer 30 is provided at a preset position of the base 20 of the housing 10. The first ink layer 30 is a thermochromic ink layer, which can change the color of the first ink layer 30 when the ambient temperature changes, so that the change of the ambient temperature can be visually perceived. When the housing provided by the exemplary embodiment of the present disclosure is applied to an electronic device, such as a screen cover of a smart wearable product, the user can intuitively know the real-time ambient temperature according to the color of the first ink layer on the screen cover that changes with the ambient temperature. This can not only monitor the ambient temperature in real time, but also enrich the color effect of the smart wearable product. In addition, due to the difference between human body temperature and ambient temperature, when the user touches the preset position on the screen cover where the first ink layer is provided, the color change caused by human touch can also be realized, which enhances the interaction between the user and the product and brings a new experience.

[0058] It should be noted that the base 20 of the shell 10 provided in the exemplary embodiment of the present disclosure can be made of a transparent material, such as transparent glass. Therefore, when the shell 10 is applied to the screen cover of an electronic device, the position where the first ink layer is not set can display the content of the electronic device display screen.

[0059] In the exemplary embodiments provided in the present disclosure, Figure 1 As shown, the first ink layer 30 is disposed around the edge of the first surface of the substrate 20 with a preset width.

[0060] Electronic devices, especially smart wearable electronic devices, almost all have BM areas (Black Matrix) at the edges of their display screens, and the BM area will reduce the screen-to-body ratio and reduce the visual effect. Therefore, in the exemplary embodiment provided by the present disclosure, the first ink layer 30 is arranged at the edge of the first surface of the substrate 20 with a preset width. The preset width can be just the width of the BM area on the electronic device display screen, or it can be slightly wider than the width of the BM area on the electronic device display screen, for example, 3 to 4 mm. In this way, the BM area can be used to achieve a thermochromic effect, which can not only monitor the ambient temperature in real time, but also enrich the color effect of the smart wearable electronic device.

[0061] In the exemplary embodiment provided in the present disclosure, the raw materials of the first ink layer include, by weight percentage: 28.40-58.90% resin, 28.56-43.29% first solvent, 9.56-23.15% thermochromic mucus, and 2.98-5.16% first auxiliary agent.

[0062] The resin is the base resin of the first ink layer. The resin can provide a base color for the first ink layer. For example, the resin can be off-white and can also act as an adhesive to solidify the first ink layer at a preset position on the first surface of the substrate. The resin can be at least one of polyvinyl chloride resin, alkyd resin, polymethacrylate resin, urea-formaldehyde resin, and melamine resin. The raw material of the first ink layer includes 28.40-58.90% of the resin, which can solidify the first ink layer at a preset position on the first surface of the substrate. The first solvent includes at least one of isopropyl alcohol or butanone. The raw material of the first ink layer includes 28.56-43.29% of the first solvent, which can evenly disperse the resin and the thermochromic mucus in the raw material of the first ink layer to be subsequently combined with the preset position on the first surface of the substrate. The thermochromic mucus contains a thermochromic component, which can make the first ink layer change color with the change of ambient temperature. The raw material of the first ink layer includes 9.56-23.15% of the thermochromic mucus, which can make the first ink layer more clear and more sensitive to color change. The raw materials of the first ink layer also include 2.98 to 5.16% of a first auxiliary agent, and the first auxiliary agent includes a dispersant, for example, a 5040 type dispersant, which can make the raw material system of the first ink layer dispersed more evenly, so as to be subsequently combined with a preset position on the first surface of the substrate; in addition, the first auxiliary agent also includes a small amount of triethoxysilane and / or polyacrylate, for example, triethoxysilane and / or polyacrylate accounting for 1.95 to 3.63% by weight of the first auxiliary agent. After the first ink layer is coated on the preset position on the first surface of the substrate, the triethoxysilane and the polyacrylate shrink, thereby wrapping the thermochromic component in the first ink layer and firmly fixing it at the preset position on the first surface of the substrate.

[0063] In the exemplary embodiment provided in the present disclosure, the raw materials of the thermochromic slime include, by weight percentage: 7.96-11.36% of the second auxiliary agent, 85.10-90.17% of the colorant, and 1.87-3.54% of the second solvent.

[0064] The thermochromic slime includes 7.96-11.36% of the second auxiliary agent, 85.10-90.17% of the colorant, and 1.87-3.54% of the second solvent. Under this component and content ratio, the first ink layer can achieve clear color development and sensitive color change with temperature changes.

[0065] In the exemplary embodiments provided in the present disclosure, the second auxiliary agent includes saturated hydroxyl polyester and / or glyceride; and / or the colorant includes one or more of the following: methyl blue, carbon black, carmine, calcium carbonate, titanium oxide, iodized salt and cobalt salt.

[0066] In the exemplary embodiments provided in the present disclosure, the colorant includes one or more of the following:

[0067] Methyl blue, carbon black, carmine, calcium carbonate, titanium oxide, iodized salts and cobalt salts.

[0068] The colorant provides the color change of the first ink layer. Methyl blue, carbon black, carmine, calcium carbonate, titanium oxide, iodized salts and cobalt salts are all colorants with relatively clear colors. Applying one or more of these colorants to the first ink layer can achieve clear color development and sensitive color change with temperature changes. For example, the colorant and its content used can be adjusted according to different needs to achieve blue-black interconversion, black-red interconversion, black-gray interconversion, blue-red interconversion, and red-gray interconversion. For example, the first ink layer is blue at 20-25°C, black at 25-30°C, and red above 30°C.

[0069] In an exemplary embodiment provided by the present disclosure, the second auxiliary agent includes saturated hydroxyl polyester and / or glyceride.

[0070] Saturated hydroxyl polyester and glycerol ester can improve the color clarity and color change sensitivity of the first ink layer. Therefore, adding 7.96-11.36% of saturated hydroxyl polyester and / or glycerol ester to the thermochromic mucus can make the first ink layer change color more sensitively with the ambient temperature. When it is applied to the screen cover of the smart wearable product, the user can intuitively know the real-time ambient temperature according to the color of the first ink layer on the screen cover that changes with the ambient temperature. This can not only monitor the ambient temperature in real time, but also enrich the color effect of the smart wearable product. In addition, due to the difference between human body temperature and ambient temperature, when the user touches the preset position of the first ink layer on the screen cover, the color change caused by human touch can also be realized, which enhances the interaction between the user and the product and brings a new experience.

[0071] In an exemplary embodiment provided by the present disclosure, the second solvent includes one or more of the following: polysiloxane, propanol, xylene, ethyl acetate, and cyclohexanone.

[0072] Polysiloxane, propanol, xylene, ethyl acetate and cyclohexanone are all good dispersing solvents. Adding 1.87-3.54% of at least one of polysiloxane, propanol, xylene, ethyl acetate and cyclohexanone to the thermochromic mucus can make the colorant evenly dispersed in the thermochromic mucus, and then evenly dispersed in the raw material system of the first ink layer, so that when it is subsequently combined to a preset position on the first surface of the substrate, the color of the first ink layer is uniform, thereby ensuring the color development and color change quality of the first ink layer, and then ensuring the quality of the shell.

[0073] In an exemplary embodiment provided by the present disclosure, the thickness of the first ink layer is 15-20 μm.

[0074] When the thickness of the first ink layer is within the range of 15-20 μm, the first ink layer can change color sensitively and clearly with the change of ambient temperature. If the first ink layer is too thick, the overall thickness of the shell will change. When the shell is applied to the screen cover of the electronic device display, the overall thickness of the electronic device will increase, affecting the appearance and increasing the production cost; if the first ink layer is too thin, its sensitivity to change color with the change of ambient temperature may be insufficient, the color rendering is not clear enough, and the user cannot intuitively obtain the change of ambient temperature.

[0075] In an exemplary embodiment provided by the present disclosure, the shell further includes: a second ink layer, disposed on a second surface of the first ink layer away from the substrate; and a third ink layer, disposed on a third surface of the second ink layer away from the first ink layer.

[0076] The housing provided by the exemplary embodiment of the present disclosure includes: a substrate, a first ink layer disposed on a first surface of the substrate with a preset width, a second ink layer disposed on a second surface of the first ink layer away from the substrate, and a third ink layer disposed on a third surface of the second ink layer away from the first ink layer. The second ink layer is the substrate ink layer, and the third ink layer is the cover bottom ink layer. Exemplarily, Figure 2 A cross-sectional schematic diagram of a preset width of the shell edge is shown, 20 is the base of the shell, 30 is the first ink layer, 40 is the second ink layer, and 50 is the third ink layer.

[0077] In an exemplary embodiment provided by the present disclosure, the color of the second ink layer is off-white, and the color of the third ink layer is black.

[0078] The third ink layer is a bottom cover ink layer, and its main function is to first increase the OD (Optical Density) value of the ink layer area with a preset width at the edge of the shell, so as to prevent light leakage from the display screen when the shell is applied to the screen cover of the electronic device display screen; the second function of the third ink layer is to increase the dyne value to meet the assembly requirements of other components when the shell is applied to the screen cover of the electronic device display screen. Therefore, in the exemplary embodiment provided by the present disclosure, the color of the third ink layer, i.e., the bottom cover ink layer, is set to black. The raw material of the third ink layer can be black ink that can meet the OD dyne value requirement, and the present disclosure is not limited here.

[0079] The second ink layer, i.e., the substrate ink layer, is used to highlight the color effect of the first ink layer before and after the color change due to the change of ambient temperature, and to prevent the black color of the third ink layer from overlapping with the color of the first ink layer and affecting the color development of the first ink layer. Therefore, in the exemplary embodiment provided by the present disclosure, the color of the second ink layer, i.e., the substrate ink layer, is set to be off-white. The raw material of the third ink layer can be conventional off-white ink, which is not limited by the present disclosure.

[0080] In an exemplary embodiment provided by the present disclosure, the thickness of the second ink layer is 8-12 μm, and / or the thickness of the third ink layer is 10-15 μm.

[0081] The third ink layer is a bottom ink layer, and its function is to increase the OD (Optical Density) value and dyne value of the ink layer area with a preset width set at the edge of the shell. Therefore, in addition to setting the color of the third ink layer to black, the thickness of the third ink layer should also meet certain requirements. In the exemplary embodiment provided in the present disclosure, the thickness of the third ink layer is 10-15μm. Within this thickness range, the third ink layer can increase the OD (Optical Density) value and dyne value of the ink layer area with a preset width set at the edge of the shell without increasing the thickness.

[0082] The second ink layer is a substrate ink layer, and its function is to highlight the color effect of the first ink layer before and after the color changes with the change of ambient temperature, and to prevent the black color of the third ink layer from overlapping with the color of the first ink layer and affecting the color rendering of the first ink layer. Therefore, in addition to setting the color of the second ink layer to grayish white, the thickness of the second ink layer should also meet certain requirements. In the exemplary embodiment provided in the present disclosure, the thickness of the second ink layer is 8-12 μm. Within this thickness range, the second ink layer can highlight the color effect of the first ink layer before and after the color changes with the change of ambient temperature without increasing the thickness.

[0083] The exemplary embodiment of the present disclosure provides a method for preparing a housing, such as Figure 3 As shown, the preparation method comprises:

[0084] S100: providing a base of a housing.

[0085] The substrate may be made of a transparent material, such as transparent glass. Therefore, when the shell is applied to a screen cover of an electronic device, the position where the first ink layer is not provided may display the content of the display screen of the electronic device.

[0086] S200: coating a first ink at a preset position on a first surface of a substrate, and forming a first ink layer after drying and curing under a first preset condition; wherein the first ink layer is a thermochromic ink layer.

[0087] like Figure 1 As shown, a first ink is applied at a preset position of the base 20 of the housing 10, and after drying and curing under a first preset condition, a first ink layer 30 is formed. The first ink layer 30 is a thermochromic ink layer, which can change the color of the first ink layer 30 when the ambient temperature changes, so that the change of the ambient temperature can be visually perceived. When the housing prepared by the preparation method provided by the exemplary embodiment of the present disclosure is applied to an electronic device, such as a screen cover of a smart wearable product, the user can intuitively know the real-time and actual ambient temperature according to the color of the first ink layer on the screen cover that changes with the ambient temperature. This can monitor the ambient temperature in real time and enrich the color effect of the smart wearable product. In addition, due to the difference between human body temperature and ambient temperature, when the user touches the preset position on the screen cover where the first ink layer is set, the color change caused by human touch can also be realized, which enhances the interaction between the user and the product and brings a new experience.

[0088] In an exemplary embodiment provided in the present disclosure, before applying the first ink at a preset position on the first surface of the substrate, the preparation method further includes: cleaning the preset position on the first surface of the substrate by alkaline washing and / or plasma cleaning.

[0089] In order to ensure the quality of the subsequent coating of the first ink and the adhesion of the first ink layer, before coating the first ink, grease, organic matter, etc. at a preset position of the first surface of the substrate are removed by alkaline washing at 60-70°C for 30-120s, or dust is removed at a preset position of the first surface of the substrate by plasma cleaning for 1-3s to enhance the adhesion of the first ink to the substrate.

[0090] It should be noted that during the alkali cleaning and / or plasma cleaning of the preset position of the first surface of the substrate, other parts of the substrate need to be covered and protected to prevent damage to the substrate surface and affect the quality of the shell.

[0091] In the exemplary embodiment provided in the present disclosure, the first preset condition includes: the first preset temperature is 80-120° C., and the first preset time is 4-6 minutes.

[0092] A first ink is coated at a preset position on the first surface of the substrate, and the substrate coated with the first ink is placed at a first preset temperature of 80-120°C and dried for a first preset time of 4-6 minutes. The solvent in the first ink evaporates, and the first ink is dried and solidified at the preset position on the first surface of the substrate to form a first ink layer.

[0093] In an exemplary embodiment provided in the present disclosure, applying the first ink includes: applying the first ink by silk screen printing; wherein the aperture size of the silk screen printing plate is 300-400 meshes, and the number of printing times is 2-4 times.

[0094] Using a screen printing screen with an aperture size of 300-400 mesh, the first ink is applied to the preset position of the first surface of the substrate by screen printing. After printing 2-4 times, the first ink can be evenly applied to the preset position of the first surface of the substrate, and the thickness requirement can be reached after the first ink is dried and solidified. The method of applying the first ink by screen printing has a good coating effect. The first ink adheres smoothly to the substrate and has a full color, which is conducive to the subsequent color development and color change of the first ink layer.

[0095] In the exemplary embodiments provided in the present disclosure, Figure 1 As shown, the first ink layer is disposed around the edge of the first surface of the substrate with a preset width.

[0096] Electronic devices, especially smart wearable electronic devices, almost all have BM areas (BlackMatrix) at the edges of their display screens, and the BM area will reduce the screen-to-body ratio and reduce the visual effect. Therefore, in the exemplary embodiment provided by the present disclosure, the first ink is applied to the edge of the first surface of the substrate 20 with a preset width, that is, the first ink layer 30 is arranged around the edge of the first surface of the substrate 20 with a preset width. The preset width can be just the width of the BM area on the electronic device display screen, or it can be slightly wider than the width of the BM area on the electronic device display screen, for example, 3 to 4 mm. In this way, the BM area can be used to achieve a thermochromic effect, which can not only monitor the ambient temperature in real time, but also enrich the color effect of the smart wearable electronic device.

[0097] In an exemplary embodiment provided by the present disclosure, the first ink includes the following components expressed in weight percentage: 28.40-58.90% resin, 28.56-43.29% first solvent, 9.56-23.15% thermochromic mucus, and 2.98-5.16% first auxiliary agent.

[0098] The resin is the base resin of the first ink layer. The resin can provide a base color for the first ink layer. For example, the resin can be off-white and can also act as an adhesive to solidify the first ink layer at a preset position on the first surface of the substrate. The resin can be at least one of polyvinyl chloride resin, alkyd resin, polymethacrylate resin, urea-formaldehyde resin, and melamine resin. The first ink includes 28.40-58.90% of the resin, which can solidify the first ink layer at a preset position on the first surface of the substrate. The first solvent includes at least one of isopropyl alcohol or butanone. The first ink includes 28.56-43.29% of the first solvent, which can evenly disperse the resin and the thermochromic mucus in the raw materials of the first ink layer to be subsequently combined with the preset position on the first surface of the substrate. The thermochromic mucus contains a thermochromic component, which can make the first ink layer change color with changes in ambient temperature. The first ink includes 9.56-23.15% of the thermochromic mucus, which can make the first ink layer more clear and more sensitive to color change. The first ink also includes 2.98 to 5.16% of a first auxiliary agent, and the first auxiliary agent includes a dispersant, for example, a 5040 type dispersant, which can make the raw material system of the first ink layer dispersed more evenly, so as to be subsequently combined with a preset position on the first surface of the substrate; in addition, the first auxiliary agent also includes a small amount of triethoxysilane and / or polyacrylate, for example, triethoxysilane and / or polyacrylate accounting for 1.95 to 3.63% by weight of the first auxiliary agent. After the first ink layer is coated on the preset position on the first surface of the substrate, the triethoxysilane and polyacrylate shrink, thereby wrapping the thermochromic component in the first ink layer and firmly fixing it at the preset position on the first surface of the substrate.

[0099] In an exemplary embodiment provided by the present disclosure, the thermochromic slime includes the following components expressed in weight percentage: 7.96-11.36% of a second auxiliary agent, 85.10-90.17% of a colorant, and 1.87-3.54% of a second solvent.

[0100] The thermochromic slime includes 7.96-11.36% of the second auxiliary agent, 85.10-90.17% of the colorant, and 1.87-3.54% of the second solvent. Under this component and content ratio, the first ink layer can achieve clear color development and sensitive color change with temperature changes.

[0101] In an exemplary embodiment provided by the present disclosure, the second auxiliary agent includes saturated hydroxyl polyester and / or glyceride.

[0102] Saturated hydroxyl polyester and glycerol ester can improve the color clarity and color change sensitivity of the first ink layer. Therefore, adding 7.96-11.36% of saturated hydroxyl polyester and / or glycerol ester to the thermochromic mucus can make the first ink layer change color more sensitively with the ambient temperature. When it is applied to the screen cover of the smart wearable product, the user can intuitively know the real-time ambient temperature according to the color of the first ink layer on the screen cover that changes with the ambient temperature. This can not only monitor the ambient temperature in real time, but also enrich the color effect of the smart wearable product. In addition, due to the difference between human body temperature and ambient temperature, when the user touches the preset position of the first ink layer on the screen cover, the color change caused by human touch can also be realized, which enhances the interaction between the user and the product and brings a new experience.

[0103] In an exemplary embodiment provided by the present disclosure, the colorant includes one or more of the following: methyl blue, carbon black, carmine, calcium carbonate, titanium oxide, iodide salt and cobalt salt.

[0104] The colorant provides the color change of the first ink layer. Methyl blue, carbon black, carmine, calcium carbonate, titanium oxide, iodized salts and cobalt salts are all colorants with relatively clear colors. Applying one or more of these colorants to the first ink layer can achieve clear color development and sensitive color change with temperature changes. For example, the colorant and its content used can be adjusted according to different needs to achieve blue-black interconversion, black-red interconversion, black-gray interconversion, blue-red interconversion, and red-gray interconversion. For example, the first ink layer is blue at 20-25°C, black at 25-30°C, and red above 30°C.

[0105] In an exemplary embodiment provided by the present disclosure, the second solvent includes one or more of the following: polysiloxane, propanol, xylene, ethyl acetate, and cyclohexanone.

[0106] Polysiloxane, propanol, xylene, ethyl acetate and cyclohexanone are all good dispersing solvents. Adding 1.87-3.54% of at least one of polysiloxane, propanol, xylene, ethyl acetate and cyclohexanone to the thermochromic mucus can make the colorant evenly dispersed in the thermochromic mucus, and then evenly dispersed in the raw material system of the first ink layer, so that when it is subsequently combined to a preset position on the first surface of the substrate, the color of the first ink layer is uniform, thereby ensuring the color development and color change quality of the first ink layer, and then ensuring the quality of the shell.

[0107] In an exemplary embodiment provided by the present disclosure, the thickness of the first ink layer is 15-20 μm.

[0108] When the thickness of the first ink layer is within the range of 15-20 μm, the first ink layer can change color sensitively and clearly with the change of ambient temperature. If the first ink layer is too thick, the overall thickness of the shell will change. When the shell is applied to the screen cover of the electronic device display, the overall thickness of the electronic device will increase, affecting the appearance and increasing the production cost; if the first ink layer is too thin, its sensitivity to change color with the change of ambient temperature may be insufficient, the color rendering is not clear enough, and the user cannot intuitively obtain the change of ambient temperature.

[0109] In the exemplary embodiments provided in the present disclosure, Figure 4 As shown, the preparation method also includes:

[0110] S300: coating a second ink on a second surface of the first ink layer away from the substrate, and drying and curing the second ink layer under a second preset condition to form a second ink layer.

[0111] After forming a first ink layer at a preset position on the first surface of the substrate, a second ink is coated on a second surface of the first ink layer away from the substrate, and the second ink is the substrate ink. After drying and curing under second preset conditions, a second ink layer, i.e., the substrate ink layer, is formed.

[0112] S400: coating a third ink on a third surface of the second ink layer away from the first ink layer, and drying and curing the third ink layer under a third preset condition to form a third ink layer.

[0113] A second ink is coated on a second surface of the first ink layer away from the substrate to form a second ink layer, and then a third ink is coated on a third surface of the second ink layer away from the first ink layer, where the third ink is the cover ink. After drying and curing under a third preset condition, a third ink layer, i.e., the cover ink layer, is formed.

[0114] In the exemplary embodiment provided in the present disclosure, the second preset condition includes: the second preset temperature is 80-120°C, and the second preset time is 4-6 minutes; the third preset condition includes: the third preset temperature is 140-160°C, and the third preset time is 25-35 minutes.

[0115] After the second ink is coated on the second surface of the first ink layer away from the substrate, the substrate coated with the second ink is placed at a second preset temperature of 80-120°C and dried for a second preset time of 4-6 minutes, so that the solvent in the second ink evaporates and the second ink dries and solidifies on the second surface of the first ink layer away from the substrate to form a second ink layer, i.e., a substrate ink layer.

[0116] After the third ink is applied to the third surface of the second ink layer away from the first ink layer, the substrate coated with the third ink is placed at a third preset temperature of 140-160°C and dried for a third preset time of 25-35 minutes. The solvent in the third ink evaporates, and the third ink is dried and solidified on the third surface of the second ink layer away from the first ink layer to form a third ink layer, i.e., the substrate ink layer. It should be noted that the drying and curing time of the third ink is longer than that of the first ink and the second ink, and the drying and curing temperature is higher. This is because after the third ink is applied, the final drying and curing is required to solidify the first, second, and third ink layers as a whole at the preset position of the substrate.

[0117] It should be noted that the coating method of the second ink and the third ink can be the same as the coating method of the first ink, that is, the second and third inks are coated by silk screen printing; wherein the aperture size of the silk screen printing plate is 300-400 mesh, and the number of printing times can be selected according to the required thickness of the second and third inks, for example, it can be 2 to 4 times.

[0118] In an exemplary embodiment provided by the present disclosure, the color of the second ink layer is off-white, and the color of the third ink layer is black.

[0119] The third ink layer is a bottom cover ink layer, and its main function is to first increase the OD (Optical Density) value of the ink layer area with a preset width at the edge of the shell, so as to prevent light leakage from the display screen when the shell is applied to the screen cover of the electronic device display screen; the second function of the third ink layer is to increase the dyne value to meet the assembly requirements of other components when the shell is applied to the screen cover of the electronic device display screen. Therefore, in the exemplary embodiment provided by the present disclosure, the color of the third ink layer, i.e., the bottom cover ink layer, is set to black. The raw material of the third ink layer can be black ink that can meet the OD dyne value requirement, and the present disclosure is not limited here.

[0120] The second ink layer, i.e., the substrate ink layer, is used to highlight the color effect of the first ink layer before and after the color change due to the change of ambient temperature, and to prevent the black color of the third ink layer from overlapping with the color of the first ink layer and affecting the color development of the first ink layer. Therefore, in the exemplary embodiment provided by the present disclosure, the color of the second ink layer, i.e., the substrate ink layer, is set to be off-white. The raw material of the third ink layer can be conventional off-white ink, which is not limited by the present disclosure.

[0121] In an exemplary embodiment provided by the present disclosure, the thickness of the second ink layer is 8-12 μm, and / or the thickness of the third ink layer is 10-15 μm.

[0122] The third ink layer is a bottom ink layer, and its function is to increase the OD (Optical Density) value and dyne value of the ink layer area with a preset width set at the edge of the shell. Therefore, in addition to setting the color of the third ink layer to black, the thickness of the third ink layer should also meet certain requirements. In the exemplary embodiment provided in the present disclosure, the thickness of the third ink layer is 10-15μm. Within this thickness range, the third ink layer can increase the OD (Optical Density) value and dyne value of the ink layer area with a preset width set at the edge of the shell without increasing the thickness.

[0123] The second ink layer is a substrate ink layer, and its function is to highlight the color effect of the first ink layer before and after the color changes with the change of ambient temperature, and to prevent the black color of the third ink layer from overlapping with the color of the first ink layer and affecting the color rendering of the first ink layer. Therefore, in addition to setting the color of the second ink layer to grayish white, the thickness of the second ink layer should also meet certain requirements. In the exemplary embodiment provided in the present disclosure, the thickness of the second ink layer is 8-12 μm. Within this thickness range, the second ink layer can highlight the color effect of the first ink layer before and after the color changes with the change of ambient temperature without increasing the thickness.

[0124] An exemplary embodiment of the present disclosure provides an electronic device, and the electronic device includes the housing provided by the exemplary embodiment of the present disclosure.

[0125] A specific example of using the method for preparing a shell provided by the exemplary embodiment of the present disclosure to prepare a shell is given below.

[0126] A base for the housing is provided.

[0127] At a preset position on the first surface of the substrate, grease, organic matter, etc. at the preset position on the first surface of the substrate are removed by alkaline washing at 60 to 70° C. for 30 to 120 seconds, and dust is removed at the preset position on the first surface of the substrate by plasma cleaning for 1 to 3 seconds.

[0128] A first ink is coated at a preset position on the first surface of the substrate, and dried at a first preset temperature of 80-120° C. for a first preset time of 4-6 minutes to form a first ink layer.

[0129] A second ink is coated on a second surface of the first ink layer away from the substrate, and dried at a second preset temperature of 80-120° C. for a second preset time of 4-6 minutes to form a second ink layer.

[0130] A third ink is coated on a third surface of the second ink layer away from the first ink layer, and dried at a third preset temperature of 140-160° C. for a third preset time of 25-35 minutes to form a third ink layer to obtain a shell.

[0131] The contents described above may be implemented individually or in combination in various ways, and these variations are all within the protection scope of the present disclosure.

[0132] Finally, it should be noted that in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0133] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A housing, characterized in that: include: Base, a first ink layer, the first ink layer being disposed at a preset position on the first surface of the substrate; The first ink layer is a thermochromic ink layer.

2. The housing according to claim 1, characterized in that The first ink layer is disposed around the edge of the first surface of the substrate with a preset width.

3. The housing according to claim 1, characterized in that The raw materials of the first ink layer include, by weight percentage:

4. The housing according to claim 3, characterized in that: The raw materials of the thermochromic mucus include, by weight percentage: The second auxiliary agent 7.96~11.36%, Pigment 85.10~90.17%, The second solvent is 1.87-3.54%.

5. The housing according to claim 4, characterized in that: The second auxiliary agent includes saturated hydroxyl polyester and / or glyceride; and / or, The colorant includes one or more of the following: Methyl blue, carbon black, carmine, calcium carbonate, titanium oxide, iodized salts and cobalt salts.

6. The housing according to claim 1, characterized in that The housing further comprises: A second ink layer, disposed on a second surface of the first ink layer away from the substrate; The third ink layer is disposed on a third surface of the second ink layer away from the first ink layer.

7. The housing according to claim 6, characterized in that The color of the second ink layer is off-white, and the color of the third ink layer is black.

8. The housing according to claim 1, characterized in that The thickness of the first ink layer is 15-20 μm.

9. The housing according to claim 6, characterized in that: The thickness of the second ink layer is 8-12 μm, and / or the thickness of the third ink layer is 10-15 μm.

10. A method for preparing a shell, characterized in that: The preparation method comprises: providing a base of the housing; A first ink is coated at a preset position on the first surface of the substrate, and after drying and curing under a first preset condition, a first ink layer is formed; wherein the first ink layer is a thermochromic ink layer.

11. The method for preparing a housing according to claim 10, characterized in that: The first preset conditions include: a first preset temperature of 80-120° C., and a first preset time of 4-6 minutes.

12. The method for preparing a housing according to claim 10, characterized in that: Applying the first ink includes: applying the first ink by silk screen printing; wherein the aperture size of the silk screen printing screen is 300-400 meshes, and the number of printing times is 2-4 times.

13. The method for preparing a housing according to claim 10, characterized in that: The preparation method further comprises: Applying a second ink on a second surface of the first ink layer away from the substrate, and drying and curing the second ink layer under a second preset condition; A third ink is coated on a third surface of the second ink layer away from the first ink layer, and after drying and curing under a third preset condition, a third ink layer is formed.

14. The method for preparing a housing according to claim 13, characterized in that: The second preset condition includes: the second preset temperature is 80-120° C., and the second preset time is 4-6 minutes; the third preset condition includes: the third preset temperature is 140-160° C., and the third preset time is 25-35 minutes.

15. An electronic device, characterized in that: The electronic device comprises the housing according to any one of claims 1 to 9.

Images