TWI781486B - Three-dimensional laser pattern, case with the same, light-emitting element with the same and manufacturing method of the same - Google Patents

Abstract

The embodiments according to the present disclosure provide a three-dimensional laser pattern, a tag with the same, a case with the same, a light-emitting element with the same and manufacturing method of the same. The laser material can be combined with the base material through the surface treatment layer, and the three-dimensional pattern can be formed by forming process. The three-dimensional pattern with the laser material not only shows the three-dimensional effect in visual but also presents a three-dimensional shape in actual.

Description

Three-dimensional laser totem, case with same, light-emitting element with same, and manufacturing method thereof

The present invention relates to a three-dimensional totem and a manufacturing method thereof, in particular to a three-dimensional laser totem and a manufacturing method thereof, a housing with the three-dimensional laser totem, a light-emitting element and a manufacturing method thereof.

Laser materials can present visual effects such as colorful, colorful, three-dimensional, far and near, deep and shallow, and different visual effects can be obtained from different angles. Therefore, this type of laser material is often used for anti-counterfeiting identification, beautiful decoration and other purposes. At present, there are many laser stickers on the market that can be attached to objects such as motorcycle shells, electronic product shells, or keyboards.

However, the current products using laser materials are all in a flat form, and there is no product that processes laser materials into a three-dimensional form. The reason is that the formation of a three-dimensional form requires stamping and other processes, but it is The substrate or film of the laser cannot be bonded with the laser material. The main reason why the substrate or film cannot be combined with the laser material is that the laser material and the substrate or film are incompatible heterogeneous materials, and are used for laser materials The back adhesive of the material cannot be attached to the substrate or film, so that the laser material cannot be well combined with the substrate or film. In this way, the inability to bond well between different materials will cause abnormalities between the laser material and the substrate or film, uneven product surface, or even failure to bond.

An embodiment of the invention provides a three-dimensional laser totem, a three-dimensional laser totem, a casing with the three-dimensional laser totem, a light emitting element with the three-dimensional laser totem, and a manufacturing method of the three-dimensional laser totem. The laser material can be combined with the base material by performing surface treatment on the base material, so as to overcome the problem of difficult combination between the laser material and the base material.

A three-dimensional laser totem according to an embodiment of the present invention includes: a body having opposite convex and concave surfaces. The body includes: base material, surface treatment layer, adhesive layer and laser material. The surface treatment layer is disposed on the base material. The adhesive layer is arranged on the surface treatment layer, and the surface treatment layer is located between the base material and the adhesive layer. The laser material is arranged on the adhesive layer, and the adhesive layer is located between the surface treatment layer and the laser material. The base material, the surface treatment layer, the adhesive layer and the laser layer are sequentially arranged in the direction from the convex surface to the concave surface.

A casing according to an embodiment of the present invention includes: a casing and the above-mentioned three-dimensional laser totem. At least a part of the casing fills the concave surface of the body of the three-dimensional laser totem.

A light-emitting element according to an embodiment of the present invention includes: the above-mentioned three-dimensional laser totem and a light source. The light source is arranged on the concave side of the three-dimensional laser totem, and the light emitting direction of the light source faces the concave surface.

A method for manufacturing a laser totem according to an embodiment of the present invention, comprising The following steps: use a surface treatment agent to surface treat one side of the substrate to form a surface treatment layer; coat the surface treatment layer with an adhesive layer; bond the laser material to the adhesive layer, the substrate, the surface treatment layer, the adhesive layer and The laser material constitutes the main body; and the main body has relative convex and concave surfaces through the forming method, and the base material, surface treatment layer, adhesive layer and laser layer are sequentially arranged in the direction from the convex surface to the concave surface.

The manufacturing method of the housing according to an embodiment of the present invention includes: the manufacturing method of the above-mentioned 3D laser totem; and forming a housing through plastic injection, at least a part of the housing is filled in the concave surface of the body of the 3D laser totem.

According to the three-dimensional laser totem, the three-dimensional laser label, the housing with the three-dimensional laser totem, the light-emitting element with the three-dimensional laser totem and the manufacturing method of the three-dimensional laser totem provided by the embodiments of the present invention, through the substrate A surface treatment layer is formed on the surface, so that the laser material is combined with the base material, and then formed into a three-dimensional totem through processes such as punching and forming. The three-dimensional totem combined with laser materials can not only show a three-dimensional effect visually, but also present a three-dimensional appearance physically.

10: Three-dimensional laser totem

100, 200, 300, 400: body

1001: Convex

1002: Concave

101: Substrate

102, 102': surface treatment layer

103: Adhesive layer

104:Laser material

105: The first protective layer

106: Second protective layer

20: Stereo Laser Label

210: filling material

220: Adhesive layer

230: bottom layer

30: shell

310: Shell

40: Light emitting element

410: light source

411: carrier board

S101~S104, S201~S206, S301~S305, S401~S405: steps

FIG. 1 is a schematic cross-sectional view of a three-dimensional laser totem according to an embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view of a three-dimensional laser totem according to another embodiment of the present invention.

FIG. 3 is a schematic cross-sectional view of a three-dimensional laser label according to an embodiment of the present invention.

FIG. 4 is a schematic cross-sectional view of a shell with a three-dimensional laser totem according to an embodiment of the present invention.

Fig. 5 is a light emitting element with a three-dimensional laser totem according to an embodiment of the present invention sectional schematic diagram.

FIG. 6 is a flowchart of a method for manufacturing a three-dimensional laser totem according to an embodiment of the present invention.

FIG. 7 is a flowchart of a manufacturing method of a three-dimensional laser label according to an embodiment of the present invention.

FIG. 8 is a flow chart of a manufacturing method of a shell with a three-dimensional laser totem according to an embodiment of the present invention.

FIG. 9 is a flow chart of a method for manufacturing a light-emitting element with a three-dimensional laser totem according to an embodiment of the present invention.

The detailed features and advantages of the present invention are described in detail in the following embodiments, the content of which is sufficient to enable anyone familiar with the relevant art to understand the technical content of the present invention and implement it accordingly, and according to the content disclosed in this specification, the scope of the patent application and the drawings , anyone skilled in the art can easily understand the purpose and advantages of the present invention. The following examples are to further describe the concept of the present invention in detail, but not to limit the scope of the present invention in any way.

Embodiments of the present invention provide a three-dimensional laser totem 10 , a three-dimensional laser label 20 , a case 30 with a three-dimensional laser totem, a light emitting element 40 with a three-dimensional laser totem, and a manufacturing method thereof.

First, the three-dimensional laser totem 10 according to an embodiment of the present invention will be described. Please refer to FIG. 1 , which is a schematic cross-sectional view of a three-dimensional laser totem according to an embodiment of the present invention.

In this embodiment, the three-dimensional laser totem 10 includes a body 100 . The body 100 has a convex surface 1001 and a concave surface 1002 opposite to each other. The body 100 includes a substrate 101 , a surface treatment layer 102 , an adhesive layer 103 , a laser material 104 , a first protection layer 105 and a second protection layer 106 . The base material 101 , the surface treatment layer 102 , the adhesive layer 103 and the laser layer 104 are sequentially arranged in a direction from the convex surface 1001 to the concave surface 1002 . The first protection layer 105 can be disposed on the side of the laser material 104 away from the adhesive layer 103 , and the second protection layer 106 can be disposed on the side of the substrate 101 away from the surface treatment layer 102 .

The base material 101 can be an unbreakable and malleable transparent plastic material, such as PC, PP, PVC, PET, ABS, TPU, and the like.

The surface treatment layer 102 is disposed on the substrate 101 . The roughness of the surface of the surface treatment layer 102 facing the adhesive layer 103 may be greater than the roughness of the surface of the substrate 101 facing the surface treatment layer 102 . Due to the larger roughness of the surface treatment layer 102 , there may be a larger contact area between the adhesive layer 103 and the surface treatment layer 102 , thereby forming a stronger bond. In this embodiment, the surface treatment layer 102 is a continuous layer, but the invention is not limited thereto. In other embodiments, as shown in FIG. 2, the surface treatment layer 102' can also be a discontinuous island structure, that is to say, the surface treatment layer 102' can be partially disposed on the substrate 101, and the adhesive layer 103 will Covering the surface treatment layer 102' and the substrate 101 not covered by the surface treatment layer 102'.

The adhesive layer 103 is disposed on the surface treatment layer 102 , and the surface treatment layer 102 is located between the substrate 101 and the adhesive layer 103 . The adhesive layer 103 can be hot melt adhesive.

The laser material 104 is disposed on the adhesive layer 103 , and the adhesive layer 103 is located between the surface treatment layer 102 and the laser material 104 . The laser material 104 can be commercially available The laser material or laser film, the laser material 104 can present visual effects such as colorful, colorful, three-dimensional, far and near, depth and so on.

The first protection layer 105 can be located on the laser material 104 , and can be located on the side of the main body 100 closest to the concave surface 1002 . The first protective layer 105 can have anti-ultraviolet, acid and alkali resistance, heat resistance, scratch resistance and other functions and can reach outdoor weather resistance level, which can prevent the laser material 104 from being damaged or even peeled off during the manufacturing process or subsequent use. Although the present embodiment includes the first protective layer 105, the present invention is not limited thereto. In other embodiments, the body may not have the first protective layer 105 .

The second protection layer 106 can be located on the base material 101 , and can be located on a side of the body 100 closest to the convex surface 1001 . The second protective layer 106 can have functions such as UV resistance, acid and alkali resistance, heat resistance, scratch resistance, etc. and can reach an outdoor weather resistance level, which can prevent the substrate 101 from being damaged or even peeled off during the manufacturing process or subsequent use. The first protection layer 105 and the second protection layer 106 can be made of the same material or different materials. Although the present embodiment includes the second protection layer 106, the invention is not limited thereto. In other embodiments, the body may not have the second protective layer 106 .

The viscose or hot melt adhesive commonly used in the market has insufficient adhesion, so the base material and laser material bonded by the commercial viscose or hot melt adhesive cannot withstand impact and cannot withstand the conditions of the forming process. For this reason, the three-dimensional laser totem 10 of this embodiment forms a surface treatment layer 102 by performing surface treatment on the substrate, so that the laser material 104 can be combined with the substrate 101 through the surface treatment layer 102 and the adhesive layer 103, In order to overcome the problem of difficult bonding between the laser material and the base material, and the formed body 100 can withstand impact and withstand forming conditions to form the three-dimensional laser totem 10 .

The three-dimensional laser totem 10 of this embodiment can not only present a visual three-dimensional effect due to the laser material, but the convex surface 1001 and the concave surface 1002 of the main body 100 further constitute a solid three-dimensional structure. The three-dimensional laser totem 10 has a structure in which one side is concave and the other side is convex, so it can be applied to a key or button panel. In addition, the substrate 101, the surface treatment layer 102, the adhesive layer 103, the laser material 104, the first protective layer 105 and the second protective layer 106 can be made of transparent or translucent materials, that is, the three-dimensional laser totem 10 Can be transparent or semi-transparent.

Next, the three-dimensional laser label 20 according to an embodiment of the present invention will be described. Please refer to FIG. 3 . FIG. 3 is a schematic cross-sectional view of a three-dimensional laser label according to an embodiment of the present invention.

In this embodiment, the 3D laser label 20 includes a body 200 , a filling material 210 , an adhesive layer 220 and a bottom layer 230 . The structure of the main body 200 is substantially the same as that of the main body 100 in the above-mentioned embodiments. For the description of the main body 200, please refer to the description of the main body 100, and will not be repeated below.

The filling material 210 can be filled in the concave surface of the body 200 . The filler 210 can be a thermoplastic material or a thermosetting material, or can be a resin cured by heat or a resin cured by ultraviolet light. The filler 210 can be used to support the shape of the main body 200 after curing.

The adhesive layer 220 and the bottom layer 230 can be sequentially disposed on the filling material 210 , and the adhesive layer 220 is located between the filling material 210 and the bottom layer 230 . The adhesive layer 220 can also be disposed on the part of the main body 200 where the filling material 210 is not disposed. The adhesive layer 220 can be double-sided adhesive tape, one side of the adhesive layer 220 can be attached to the filler 210 and part of the body 200, and the other side can be attached to Attached to ground floor 230 .

The bottom layer 230 can be disposed on the adhesive layer 220 . The bottom layer 230 can be a plastic film, a plastic sheet or a release film. The bonding force between the adhesive layer 220 and the filler 210 or the body 200 may be greater than the bonding force between the adhesive layer 220 and the bottom layer 230 . That is to say, the bottom layer 230 can be easily torn off from the three-dimensional laser label 20 without affecting the bonding between the adhesive layer 220 and the filler 210 or the main body 200 , nor affecting the adhesiveness of the adhesive layer 220 . The bottom layer 230 can be used to protect the adhesive layer 220 to prevent the adhesive layer 220 from sticking to impurities.

The three-dimensional laser label 20 of this embodiment can not only present a visual three-dimensional effect due to the laser material, but the convex and concave surfaces of the main body 200 further constitute a solid three-dimensional structure. When using the three-dimensional laser label 20 , the bottom layer 230 can be torn off so that the three-dimensional laser label 20 can be pasted on any object through the adhesive layer 220 .

Next, the shell 30 with a three-dimensional laser totem according to an embodiment of the present invention will be described. Please refer to FIG. 4 . FIG. 4 is a schematic cross-sectional view of a shell with a three-dimensional laser totem according to an embodiment of the present invention.

In this embodiment, the shell 30 with the three-dimensional laser totem includes a main body 300 and a casing 310 . The structure of the main body 300 is substantially the same as that of the main body 100 in the above-mentioned embodiments. For the description of the main body 300, please refer to the description of the main body 100, and will not be repeated below.

At least a part of the casing 310 fills the concave surface of the body 300 of the three-dimensional laser totem. The housing 310 can be a thermoplastic material or a thermosetting material, or can be a resin cured by heat or ultraviolet light, or can be plastic such as ABS, PC, TPR, PP, PET, PET, etc. The housing 310 fills the concave surface of the body 300 Part of it is used to support the shape of the body 300 . Other portions of the housing 310 may be shaped like a motorcycle shell or an electronics enclosure, for example.

The case 30 with a three-dimensional laser totem in this embodiment not only presents a visual three-dimensional effect due to the laser material, but also the convex and concave surfaces of the main body 300 further constitute a solid three-dimensional structure. The shell 30 with the three-dimensional laser totem can be applied to the shell of a motorcycle, the shell of an electronic product or the shell of a box, so that the appearance of the product can not only have a three-dimensional totem, but also present a unique visual effect of the laser material.

Next, a light emitting element 40 with a three-dimensional laser totem according to an embodiment of the present invention will be described. Please refer to FIG. 5 , which is a schematic cross-sectional view of a light emitting element with a three-dimensional laser totem according to an embodiment of the present invention.

In this embodiment, the light emitting device 40 with a three-dimensional laser totem includes a body 400 , a light source 410 and a carrier 411 . The structure of the main body 400 is substantially the same as that of the main body 100 in the above-mentioned embodiments. For the description of the main body 400, please refer to the description of the main body 100, and will not be repeated below. In this embodiment, each layer of the body 400 of the three-dimensional laser totem can be made of transparent or translucent materials, that is, the three-dimensional laser totem can be transparent or semi-transparent.

The light source 410 and the carrier 411 can be disposed on one side of the three-dimensional laser totem having a concave surface, and the light source 410 can be disposed on the carrier 411 . At least part of the light emitting direction of the light source 410 faces the concave surface. The light source 410 may be an LED. The carrier 411 can be a circuit board or a light guide plate. Since the body 400 of the three-dimensional laser totem is transparent or semi-transparent, the light emitted by the light source 410 can penetrate the body 400 and produce brilliant visual effects through the laser material.

The light-emitting element 40 with a three-dimensional laser totem in this embodiment can not only present a visual three-dimensional effect due to the laser material, but also the convex and concave surfaces of the main body 400 further constitute a solid three-dimensional structure. The light-emitting element 40 with a three-dimensional laser totem can be applied to signs that need to be illuminated, illuminated keys or keyboards, and the like.

The manufacturing method of the three-dimensional laser totem will be described below. Please refer to FIG. 6 , which is a flowchart of a method for manufacturing a three-dimensional laser totem according to an embodiment of the present invention.

First, a surface treatment agent is used to perform surface treatment on one side of the substrate to form a surface treatment layer (step S101 ). In detail, the surface treatment agent can be printed or coated on the substrate by coating or screen printing, and can be cured by baking at a low temperature of 60 to 80°C for 40 to 80 minutes, preferably baking 60 minutes. A baking temperature greater than 80°C may cause curling of the substrate, while baking at a low temperature of 60 to 80°C can avoid curling. After the surface treatment agent is cured into the surface treatment layer, the 100-grid test can be carried out, and the next step can only be carried out after passing the 100-grid test. The 100-grid test is to cut the surface treatment layer into 100 square centimeters with a knife, and then stick the cut surface treatment layer with tape to test whether the surface treatment layer falls or peels off, so as to test the adhesion of the surface treatment layer sex.

Next, an adhesive layer is coated on the surface treatment layer (step S102). In detail, the adhesive layer can be hot melt adhesive, and the adhesive layer can be coated on the surface treatment layer at 250-300° C., preferably at 280° C., by coating or screen printing. Since the surface roughness of the surface treatment layer is greater than that of the base material, a larger contact area can be provided between the adhesive layer and the surface treatment layer to enhance the bonding strength between them.

Next, the laser material is bonded to the adhesive layer, so that the base material, the surface treatment layer, the adhesive layer and the laser material form a body (step S103 ). Specifically, the laser material is combined on the base material through the adhesive layer and the surface treatment layer, so that the base material, the surface treatment layer, the adhesive layer and the laser material form the body of the three-dimensional laser totem. In other embodiments, the body may further include a first protective layer or a second protective layer, and the first protective layer or the second protective layer may be disposed on the substrate or the laser material through coating, printing or pasting. The first protective layer or the second protective layer can have functions such as UV resistance, acid and alkali resistance, heat resistance, and scratch resistance, which can prevent the substrate or laser material from being damaged or even peeled off during the manufacturing process or subsequent use.

Next, the main body has opposite convex and concave surfaces through a forming method, and the base material, surface treatment layer, adhesive layer and laser layer are sequentially arranged in the direction from the convex surface to the concave surface (step S104 ). In detail, the main body can have relative convex and concave surfaces through stamping forming to form a three-dimensional laser totem, that is, the main body can have a concave-convex three-dimensional structure through stamping forming to form a three-dimensional laser totem. Moreover, in the main body, the base material, the surface treatment layer, the adhesive layer and the laser layer are sequentially arranged in the direction from the convex surface to the concave surface.

A method of manufacturing a three-dimensional laser tag will be described below. Please refer to FIG. 7 , which is a flow chart of a manufacturing method of a three-dimensional laser label according to an embodiment of the present invention. Steps S201 to S204 are substantially the same as the above steps S101 to S104, please refer to the above content, and will not be described in detail below.

After the main body has opposite convex and concave surfaces through the forming method (step S204), the filling material can be filled into the concave surface of the main body, and the filling material is solidified to support the main body. The appearance of the body (step S205). In detail, the filling material can be thermoplastic material, thermosetting material, ultraviolet curable resin. The filling material can be filled into the concave surface of the body by injection, smearing or screen printing, and then cured by irradiating ultraviolet rays, heating or drying. The filling material can make the concave side of the main body form a flat surface, so as to facilitate the attachment of the subsequent adhesive layer.

Next, attach the adhesive layer and the bottom layer to the main body in sequence (step S206). In detail, the adhesive layer can be double-sided adhesive tape, one side of the adhesive layer can be attached to the filler and part of the body, and the other side can be attached to the bottom layer to complete the three-dimensional laser label. The bottom layer can be used to protect the adhesive layer and prevent the adhesive layer from sticking to impurities. When using the three-dimensional laser label, the bottom layer can be torn off so that the three-dimensional laser label can be attached to any object through the adhesive layer.

The manufacturing method of the shell with the three-dimensional laser totem will be described below. Please refer to FIG. 8 . FIG. 8 is a flow chart of a manufacturing method of a case with a three-dimensional laser totem according to an embodiment of the present invention. Steps S301 to S304 are substantially the same as the above steps S101 to S104, please refer to the above content, and will not be described in detail below.

After the main body has opposite convex and concave surfaces through the molding method (S304), the shell can be formed through plastic injection, and at least a part of the shell fills the concave surface of the main body of the three-dimensional laser totem (step S305). Specifically, a mold corresponding to the convex surface of the three-dimensional laser totem and the shape of the shell to be formed is prepared, the three-dimensional laser totem is placed in the mold, and the raw materials of the shell are injected into the mold by the plastic injection method to make the shell Part of the body fills the concave surface of the three-dimensional laser totem, and the other part forms the desired shape. The part of the shell filled in the concave surface is used to support the shape of the three-dimensional laser totem, and the rest can be formed into shapes such as locomotive shells, electronic product shells, box shells, etc. To become a shell with a three-dimensional laser totem.

The manufacturing method of the light-emitting element with the three-dimensional laser totem will be described below. Please refer to FIG. 9 . FIG. 9 is a flow chart of a method for manufacturing a light-emitting element with a three-dimensional laser totem according to an embodiment of the present invention. Steps S401 to S404 are substantially the same as the above steps S101 to S104, please refer to the above content, and will not be described in detail below.

After the main body has opposite convex and concave surfaces through the forming method, the light source and the carrier can be disposed on the concave side of the main body, and at least part of the light emitting direction of the light source faces the concave surface (step S405 ). In detail, the light source can be disposed on the carrier board. The light source can be an LED, and the carrier can be a circuit board or a light guide plate. The light emitted by the light source can penetrate the main body and produce brilliant visual effects through the laser material.

According to the three-dimensional laser totem, the three-dimensional laser label, the housing with the three-dimensional laser totem, the light-emitting element with the three-dimensional laser totem and the manufacturing method of the three-dimensional laser totem provided by the embodiments of the present invention, through the substrate A surface treatment layer is formed on the surface, so that the laser material is combined with the base material, and then formed into a three-dimensional totem through processes such as punching and forming. The three-dimensional totem combined with laser materials can not only show a three-dimensional effect visually, but also present a three-dimensional appearance physically.

Although the present invention is disclosed by the aforementioned embodiments, they are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, all changes and modifications are within the scope of patent protection of the present invention. For the scope of protection defined by the present invention, please refer to the appended scope of patent application.

10: Three-dimensional laser totem

100: Ontology

1001: Convex

1002: Concave

101: Substrate

102: surface treatment layer

103: Adhesive layer

104:Laser material

105: The first protective layer

106: Second protective layer

Claims (8)

A three-dimensional laser totem, comprising: a body, the body has a relative convex surface and a concave surface, the body comprises: a substrate; a surface treatment layer, disposed on the substrate; an adhesive layer, disposed on the surface treatment layer, the surface treatment layer is located between the base material and the adhesive layer; and a laser material is disposed on the adhesive layer, and the adhesive layer is located between the surface treatment layer and the laser material; wherein the base material, The surface treatment layer, the adhesive layer and the laser material are sequentially arranged in the direction from the convex surface to the concave surface; a filling material is filled in the concave surface of the body; a glue layer; and a bottom layer, the glue layer and The bottom layer is sequentially arranged on the filling material, and the adhesive layer is located between the filling material and the bottom layer. The three-dimensional laser totem according to claim 1, wherein the surface treatment layer has a roughness of a surface of the adhesive layer that is greater than the roughness of a surface of the substrate facing the surface treatment layer. The three-dimensional laser totem according to claim 1, wherein the surface treatment layer is a discontinuous island structure. A shell, comprising: a shell; and According to the three-dimensional laser totem according to any one of claims 1 to 3, at least a part of the housing is filled in the concave surface of the body of the three-dimensional laser totem. A light-emitting element, comprising: the three-dimensional laser totem as described in any one of claims 1 to 3, the three-dimensional laser totem is transparent or translucent; and a light source arranged on the concave surface of the three-dimensional laser totem One side, and a light emitting direction of the light source faces the concave surface. A method for manufacturing a three-dimensional laser totem, comprising: using a surface treatment agent to perform surface treatment on one side of a substrate to form a surface treatment layer; coating an adhesive layer on the surface treatment layer; bonding a laser material In the adhesive layer, the base material, the surface treatment layer, the adhesive layer and the laser material constitute a body; the body has a convex surface and a concave surface opposite to each other through a forming method, the base material, the surface treatment layer , the adhesive layer and the laser layer are sequentially arranged in the direction from the convex surface to the concave surface; filling a filling material into the concave surface of the main body, and curing the filling material to support the shape of the main body; The adhesive layer and a bottom layer are sequentially attached to the main body and the surface formed with the filling material. The manufacturing method of the three-dimensional laser totem according to claim 6, wherein the adhesive layer is a hot melt adhesive, and the hot melt adhesive is coated on the surface treatment layer at 250 to 300°C. A manufacturing method of a shell, comprising: the manufacturing method of the three-dimensional laser totem as described in claim 6 or 7; and forming a shell through plastic injection, at least a part of the shell is filled in the three-dimensional laser totem This concave surface of the body.

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