Hot-pressed film

Abstract

The invention discloses a hot-pressed film which comprises a carrier film, a decorative layer formed on the carrier film and a transparent protective layer formed on the decorative layer. The decorative layer comprises the following components in parts by weight: 4.0 to 6.0 parts by weight of first thermoplastic polyurethane, 1.0 to 2.0 parts by weight of pigment and 12.0 to 15.0 parts by weight of first solvent. And the transparent protective layer comprises the following components in parts by weight: 4.0 to 6.0 parts of second thermoplastic polyurethane, 2.0 to 3.0 parts of functional additive and 11.0 to 14.0 parts of second solvent. The hot-pressing film is used as a bearing film and is attached to the outer surface of the object by means of a hot-pressing process. According to the ASTMD3363 test standard and under the test load of 200 gf, the scratch resistance number is equal to or larger than 50, and the Shore hardness value ranges from 70 A to 75 A. The hot-pressed film has the advantages of wear resistance, high hydrophobicity, good touch feeling and the like.

Description

Technical Field

[0001] The present invention relates to a hot-pressed film, and particularly to a hot-pressed film with wear resistance, high hydrophobicity, good touch feeling and capable of being used as a connecting element between different objects. Background Art

[0002] The hot-pressed film is attached to the outer surface of an object through a hot-pressing process, thereby decorating the object.

[0003] With the development of the hot-pressed film, the hot-pressed film has been used as a connecting element between different objects. For example, the hot-pressed film connects components and parts of devices that require pressing operations, such as switches and keyboards, through a hot-pressing process.

[0004] However, for the hot-pressed film used as a connecting element between different objects, there is still much room for improvement in its properties such as wear resistance, hydrophobicity, and touch feeling. In particular, when the hot-pressed film connects components and parts of devices that require pressing operations, such as switches and keyboards, through a hot-pressing process, the properties of the hot-pressed film related to pressing also need to be considered. Summary of the Invention

[0005] The purpose of the present invention is to provide a hot-pressed film with wear resistance, high hydrophobicity, good touch feeling and capable of being used as a connecting element between different objects.

[0006] To achieve the above object, the present invention provides a hot-pressing film for decorating the first outer surface of a first object. The hot-pressing film includes a carrier film, a decorative layer, and a transparent protective layer. The carrier film is formed of one or any combination of polypropylene, polyethylene, polyethylene terephthalate, and polycarbonate. The first thickness range of the carrier film is 0.12 mm to 0.18 mm. The decorative layer is formed on the carrier film. The components of the decorative layer by weight include: 4.0 to 6.0 parts by weight of a first thermoplastic polyurethane, 1.0 to 2.0 parts by weight of a colorant, and 12.0 to 15.0 parts by weight of a first solvent. The first thermoplastic polyurethane, the colorant, and the first solvent are mixed and then coated on the carrier film and baked and dried at a first baking temperature to form the decorative layer. The first baking temperature range is 50°C to 100°C. The second thickness range of the decorative layer is 40 μm to 50 μm. The transparent protective layer is formed on the decorative layer. The components of the transparent protective layer by weight include: 4.0 to 6.0 parts by weight of a second thermoplastic polyurethane, 2.0 to 3.0 parts by weight of a functional additive, and 11.0 to 14.0 parts by weight of a second solvent. The functional additive includes one or any combination of multiple matting powders, antibacterial agents, and antistatic agents. The second thermoplastic polyurethane, the functional additive, and the second solvent are mixed and then coated on the decorative layer and baked and dried at a second baking temperature to form the transparent protective layer. The second baking temperature range is 50°C to 100°C. The third thickness range of the decorative layer is 50 μm to 60 μm. The hot-pressing film is attached to the first outer surface of the first object with the carrier film by a hot-pressing process. The temperature range of the heating die in the hot-pressing process is 80°C to 130°C. Following the ASTM D3363 test standard and under a test load of 200 gf, the scratch resistance times of the hot-pressing film are equal to or greater than 50 times, and the Shore hardness value range of the hot-pressing film is 70A to 75A.

[0007] As an optional technical solution, the functional additive is the multiple matting powders, and the surface water contact angle range of the hot-pressing film is 80 degrees to 115 degrees.

[0008] As an optional technical solution, the first solvent is one or any combination of first dimethylacetamide, first n-butyl acetate, and first ethylene glycol monoethyl ether acetate.

[0009] As an optional technical solution, the second solvent is one or any combination of second dimethylacetamide, second n-butyl acetate, and second ethylene glycol monoethyl ether acetate.

[0010] As an alternative technical solution, during the hot pressing process, the hot pressing film is also simultaneously adhered to the second outer surface of the second object with the carrier film to connect the first object and the second object. There is a gap between the first object and the second object. The peak force range for pressing the second outer surface of the second object downward relative to the first object is 50 g to 70 g, and the pressing pressure ratio range is 35% to 55%.

[0011] The present invention also provides another hot pressing film for decorating the first outer surface of the first object. The hot pressing film includes a carrier film, a transparent protective layer, and a decorative layer: the carrier film is formed by one or any combination of polypropylene, polyethylene, polyethylene terephthalate, and polycarbonate. The first thickness range of the carrier film is 0.12 mm to 0.18 mm; the transparent protective layer is formed on the carrier film. The components of the transparent protective layer by weight include: 4.0 to 6.0 parts by weight of a first thermoplastic polyurethane, 2.0 to 3.0 parts by weight of a functional auxiliary agent, and 11.0 to 14.0 parts by weight of a first solvent. The functional auxiliary agent includes one or any combination of multiple extinction powders, antibacterial agents, and antistatic agents. Among them, the first thermoplastic polyurethane, the functional auxiliary agent, and the first solvent are mixed and then coated on the decorative layer and baked and dried at a first baking temperature to form the transparent protective layer. The first baking temperature range is 50°C to 100°C. The second thickness range of the decorative layer is 50 μm to 60 μm; the decorative layer is formed on the transparent protective layer. The components of the decorative layer by weight include: 4.0 to 6.0 parts by weight of a second thermoplastic polyurethane, 1.0 to 2.0 parts by weight of a coloring agent, and 12.0 to 15.0 parts by weight of a second solvent. Among them, the second thermoplastic polyurethane, the coloring agent, and the second solvent are mixed and then coated on the transparent protective layer and baked and dried at a second baking temperature to form the decorative layer. The second baking temperature range is 50°C to 100°C. The third thickness range of the decorative layer is 40 μm to 50 μm. Among them, the hot pressing film is adhered to the first outer surface of the first object with the decorative layer through a hot pressing process. The mold temperature range of the hot pressing process is 80°C to 130°C. Following the ASTM D3363 test standard and under a test load of 200 gf, the number of scratch resistance times of the hot pressing film is equal to or greater than 50 times, and the Shore hardness value range of the hot pressing film is 70A to 75A.

[0012] As an alternative technical solution, the functional auxiliary agent is the multiple extinction powders, and the surface water droplet contact angle range of the hot pressing film is 80 degrees to 115 degrees.

[0013] As an alternative technical solution, the first solvent is one or any combination of first dimethylacetamide, first n-butyl acetate, and first ethylene glycol monoethyl ether acetate.

[0014] As an alternative technical solution, the second solvent is one of N,N-dimethylacetamide, n-butyl acetate, ethylene glycol monoethyl ether acetate or any combination thereof.

[0015] As an alternative technical solution, during the hot pressing process, the hot pressing film is also simultaneously adhered to the second outer surface of the second object with the decorative layer to connect the first object and the second object. There is a gap between the first object and the second object, and the peak force range of the downward pressing of the second outer surface of the second object relative to the first object is 50 g to 70 g, and the pressing pressure ratio range is 35% to 55%.

[0016] The hot pressing film of the present invention has the advantages of wear resistance, high hydrophobicity, good touch, etc. When using the hot pressing film of the present invention to connect components, members and other objects of devices that require pressing operations such as switches and keyboards through the hot pressing process, the hot pressing film of the present invention also has excellent properties regarding pressing.

[0017] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but it is not intended to limit the present invention. Description of the Drawings

[0018] Figure 1 is a partial cross-sectional schematic view of the hot pressing film of the first preferred specific embodiment of the present invention;

[0019] Figure 2 is a partial cross-sectional schematic view of the hot pressing film of the first preferred specific embodiment of the present invention and the first object and the second object to which it is adhered;

[0020] Figure 3 is a partial cross-sectional schematic view of the hot pressing film of the second preferred specific embodiment of the present invention;

[0021] Figure 4 is a partial cross-sectional view of the hot pressing film of the second preferred specific embodiment of the present invention and the first object and the second object to which it is adhered. Detailed Description of the Embodiments

[0022] To further understand the purpose, structure, features and functions of the present invention, the following will be described in detail in conjunction with the embodiments.

[0023] Please refer to Figure 1 and Figure 2 , Figure 1 is a partial cross-sectional schematic view of the hot pressing film of the first preferred specific embodiment of the present invention, Figure 2 is a partial cross-sectional schematic view of the hot pressing film of the first preferred specific embodiment of the present invention and the first object and the second object to which it is adhered.

[0024] As shown in Figure 2As shown, the hot-pressing film 1 of the first preferred specific embodiment of the present invention is used to decorate the first outer surface 20 of the first object 2. As Figure 1 As shown, the hot-pressing film 1 of the first preferred specific embodiment of the present invention includes a carrier film 10, a decorative layer 12, and a transparent protective layer 14.

[0025] The carrier film 10 can be formed of polypropylene (PP), polyethylene (PE), polyethylene terephthalate (PET), or polycarbonate (PC). In other words, the carrier film 10 is formed of one or any combination selected from polypropylene (PP), polyethylene (PE), polyethylene terephthalate (PET), and polycarbonate (PC). The first thickness range of the carrier film 10 is 0.12 mm to 0.18 mm.

[0026] The decorative layer 12 is formed on the carrier film 10. The components of the decorative layer 12 by weight include 4.0 to 6.0 parts by weight of a first thermoplastic polyurethane (TPU), 1.0 to 2.0 parts by weight of a colorant, and 12.0 to 15.0 parts by weight of a first solvent. The first thermoplastic polyurethane, the colorant, and the first solvent are mixed and then coated on the carrier film 10 and baked and dried at a first baking temperature to form the decorative layer 12. The first baking temperature range is 50°C to 100°C. The second thickness range of the decorative layer 12 is 40 μm to 50 μm.

[0027] The transparent protective layer 14 is formed on the decorative layer 12. The components of the transparent protective layer 14 by weight include 4.0 to 6.0 parts by weight of a second thermoplastic polyurethane (TPU), 2.0 to 3.0 parts by weight of a functional additive, and 11.0 to 14.0 parts by weight of a second solvent. The functional additive can include multiple extinction powders, antibacterial agents, antistatic agents, etc. The second thermoplastic polyurethane, the functional additive, and the second solvent are mixed and then coated on the decorative layer 12 and baked and dried at a second baking temperature to form the transparent protective layer 14. The second baking temperature range is 50°C to 100°C. The third thickness range of the decorative layer 12 is 50 μm to 60 μm. The first thermoplastic polyurethane forming the decorative layer 12 and the second thermoplastic polyurethane forming the transparent protective layer 14 are environmentally friendly materials of polymer elastomers, do not contain plasticizers, and are non-toxic to users.

[0028] In a specific example, the surface of the carrier film 10 can be matte, that is, the surface of the carrier film 10 is a rough surface with a leather texture, so that the appearance of the decorative layer 12 and the transparent protective layer 14 thereon has a leather texture.

[0029] As Figure 2As shown, the hot-pressed film 1 of the first preferred specific embodiment of the present invention takes the carrier film 10 and is adhered to the first outer surface 20 of the first object 2 through a hot-pressing process. The mold temperature range of the hot-pressing process is 80°C to 130°C. Following the ASTM D3363 test standard, with a tungsten carbide hemispherical tip with a diameter of 1 mm for the scratch resistance test and under a test load of 200 gf, the number of scratch resistance of the hot-pressed film 1 of the first preferred specific embodiment of the present invention is equal to or greater than 50 times. The Shore hardness value range of the hot-pressed film 1 of the first preferred specific embodiment of the present invention is 70A to 75A. Obviously, the hot-pressed film 1 of the first preferred specific embodiment of the present invention is wear-resistant and has high hardness.

[0030] In a specific embodiment, the first solvent may be the first dimethylacetamide (DMAC), the first butyl acetate (BAC), the first ethylene glycol monoethyl ether acetate (CAC), or a mixture of the above compounds. In other words, the first solvent is selected from one or any combination of the first dimethylacetamide (DMAC), the first butyl acetate (BAC), and the first ethylene glycol monoethyl ether acetate (CAC).

[0031] In a specific embodiment, the second solvent may be the second dimethylacetamide (DMAC), the second butyl acetate (BAC), the second ethylene glycol monoethyl ether acetate (CAC), or a mixture of the above compounds. In other words, the second solvent is selected from one or any combination of the second dimethylacetamide (DMAC), the second butyl acetate (BAC), and the second ethylene glycol monoethyl ether acetate (CAC).

[0032] In a specific embodiment, the functional additive is multiple pieces of matting powder. The surface water droplet contact angle range of the hot-pressed film 1 of the first preferred specific embodiment of the present invention is 80 degrees to 115 degrees. Thereby, the hot-pressed film 1 of the first preferred specific embodiment of the present invention has high hydrophobicity and good touch.

[0033] In a specific embodiment, similarly as Figure 2As shown, during the hot pressing process, the hot pressing film 1 of the first preferred specific embodiment of the present invention is simultaneously attached to the second outer surface 30 of the second object 3 with the carrier film 10 to connect the first object 2 and the second object 3. There is a gap between the first object 2 and the second object 3. In practical applications, the first object 2 and the second object 3 can be components such as elements of devices that require pressing operations, such as switches and keyboards, but the present invention is not limited thereto. The hot pressing film 1 of the first preferred specific embodiment of the present invention can also seal the gap between the components such as elements of devices that require pressing operations, such as switches and keyboards, thereby enabling devices that require pressing operations, such as switches and keyboards, to have a waterproof function.

[0034] The hot pressing film 1 of the first preferred specific embodiment of the present invention connects the first object 2 and the second object 3, and the second outer surface 30 of the second object 3 can be pressed downward relative to the first object 2.

[0035] When the keys of devices that require pressing operations, such as switches and keyboards, start to be stressed and the force-stroke curve graph is recorded, the greater the force, the greater the downward stroke, that is, the more the key descends. When reaching the vertex in the force-stroke curve graph, the force applied at this time is called the peak force (F1), which is the maximum force that the inclined wall of the key can withstand. After passing the vertex in the force-stroke curve graph, the force that the key can withstand drops sharply because the inclined wall of the key starts to bend and cannot withstand the pressing force, causing the key to drop rapidly until it touches the bottom plate. The force applied at this time is called the contact force (F2). Different devices that require pressing operations usually have different design values of the peak force (F1). For example, the peak force (F1) of a small computer is only about 30 - 80 g, while that of a general telephone button is between 70 - 200 g, and that of a computer keyboard is between 40 - 90 g.

[0036] Whether the feeling of pressing the key is good or not also depends on the magnitude of the contact force (F2). However, generally for the design of devices that require pressing operations, such as switches and keyboards, the contact force (F2) is not directly defined, but the ratio of the peak force (F1) to the contact force (F2) is defined, which is the pressing pressure ratio (clickratio, CR), and its definition is as follows:

[0037]

[0038] Generally, this pressing pressure ratio (clickratio, CR) will fall between 40% - 65%.

[0039] After actual testing, the peak force range for the downward pressing of the second outer surface 30 of the second object 3 relative to the first object 2 is 50 g to 70 g, and the pressing pressure ratio range is 35% to 55%. Obviously, when the hot-pressing film 1 of the first preferred specific embodiment of the present invention is connected to components and parts of devices such as switches and keyboards that require pressing operations through a hot-pressing process, the hot-pressing film 1 of the first preferred specific embodiment of the present invention has excellent properties regarding pressing.

[0040] Please refer to Figure 3 and Figure 4 . Figure 3 It is a partial cross-sectional schematic diagram of the hot-pressing film of the second preferred specific embodiment of the present invention. Figure 4 It is a partial cross-sectional schematic diagram of the hot-pressing film of the second preferred specific embodiment of the present invention and the first object and the second object adhered thereto.

[0041] As Figure 4 shown, the hot-pressing film 4 of the second preferred specific embodiment of the present invention is used to decorate the first outer surface 50 of the first object 5. As Figure 3 shown, the hot-pressing film 4 of the second preferred specific embodiment of the present invention includes a carrier film 40, a transparent protective layer 42, and a decorative layer 44.

[0042] The carrier film 40 can be formed of polypropylene (PP), polyethylene (PE), polyethylene terephthalate (PET), or polycarbonate (PC). In other words, the carrier film 40 is formed of one or any combination selected from polypropylene (PP), polyethylene (PE), polyethylene terephthalate (PET), and polycarbonate (PC). The first thickness range of the carrier film 40 is 0.12 mm to 0.18 mm.

[0043] The transparent protective layer 42 is formed on the carrier film 40. By weight, the composition of the transparent protective layer 42 includes 4.0 to 6.0 parts by weight of the first thermoplastic polyurethane (TPU), 2.0 to 3.0 parts by weight of a functional additive, and 11.0 to 14.0 parts by weight of a first solvent. The functional additive can include multiple particles of matting powder, antibacterial agent, and antistatic agent. The first thermoplastic polyurethane, the functional additive, and the first solvent are mixed and then coated on the transparent protective layer 42 and baked and dried at a first baking temperature to form the transparent protective layer 42. The first baking temperature range is 50 °C to 100 °C. The second thickness range of the decorative layer 44 is 50 μm to 60 μm.

[0044] The decorative layer 44 is formed on the transparent protective layer 42. The composition of the decorative layer 44 by weight contains 4.0 to 6.0 parts by weight of a second thermoplastic polyurethane (TPU), 1.0 to 2.0 parts by weight of a colorant, and 12.0 to 15.0 parts by weight of a second solvent. The second thermoplastic polyurethane, the colorant, and the second solvent are mixed and then coated on the transparent protective layer 42 and baked and dried at a second baking temperature to form the decorative layer 44. The second baking temperature ranges from 50°C to 100°C. The third thickness of the decorative layer 44 ranges from 40 μm to 50 μm. The first thermoplastic polyurethane forming the transparent protective layer 42 and the second thermoplastic polyurethane of the decorative layer 44 are environmentally friendly materials of polymer elastomers, without plasticizers and non-toxic to users.

[0045] In a specific example, the surface of the carrier film 40 can be matte, that is, the surface of the carrier film 40 is a rough surface with a leather texture, so that the appearance of the hot-pressed film 4 of the second preferred specific embodiment of the present invention has a leather texture.

[0046] As Figure 4 shown, the hot-pressed film 4 of the second preferred specific embodiment of the present invention is attached to the first outer surface 50 of the first object 5 with the decorative layer 44 by means of a hot pressing process. The mold temperature range of the hot pressing process is 80°C to 130°C. Following the ASTM D3363 test standard, a tungsten carbide hemispherical tip with a diameter of 1 mm is used for the scratch resistance test, and under a test load of 200 gf, the number of scratch resistance times of the hot-pressed film 4 of the second preferred specific embodiment of the present invention is equal to or greater than 50 times. The Shore hardness value range of the hot-pressed film 4 of the second preferred specific embodiment of the present invention is 70A to 75A. Obviously, the hot-pressed film 4 of the second preferred specific embodiment of the present invention is wear-resistant and has high hardness.

[0047] In a specific embodiment, the first solvent can be the first dimethylacetamide (DMAC), the first n-butyl acetate (BAC), the first ethylene glycol monoethyl ether acetate (CAC), or a mixture of the above compounds. In other words, the first solvent is selected from one of the first dimethylacetamide (Dimethylacetamide, DMAC), the first n-butyl acetate (butyl acetate, BAC), the first ethylene glycol monoethyl ether acetate (ethylene glycol monoethyl ether acetate, CAC) or any combination thereof.

[0048] In a specific embodiment, the second solvent may be the second dimethylacetamide (DMAC), the second n-butyl acetate (BAC), the second ethylene glycol monoethyl ether acetate (CAC), or a mixture of the above compounds. In other words, the second solvent is selected from one of the second dimethylacetamide (DMAC), the second n-butyl acetate (BAC), the second ethylene glycol monoethyl ether acetate (CAC), or any combination thereof.

[0049] In a specific embodiment, the functional additive is multiple particles of matting powder. The surface water contact angle range of the hot-pressed film 4 of the second preferred specific embodiment of the present invention is from 80 degrees to 115 degrees. Thereby, the hot-pressed film 4 of the second preferred specific embodiment of the present invention has high hydrophobicity and good touch.

[0050] In a specific embodiment, similarly as Figure 4 shown, during the hot pressing process, the hot-pressed film 4 of the second preferred specific embodiment of the present invention is simultaneously adhered to the second outer surface 60 of the second object 6 with the carrier film 40 to connect the first object 5 and the second object 6. There is a gap between the first object 5 and the second object 6. In practical applications, the first object 2 and the second object 3 may be components, members, etc. of devices such as switches and keyboards that require pressing operations, but the present invention is not limited thereto. The hot-pressed film 4 of the second preferred specific embodiment of the present invention also seals the gap between the components and members of devices such as switches and keyboards that require pressing operations, thereby enabling devices such as switches and keyboards to have a waterproof function.

[0051] Using the hot-pressed film 4 of the second preferred specific embodiment of the present invention to connect the first object 5 and the second object 6, through actual testing, the peak force range for the second outer surface 60 of the second object 6 to be pressed downward relative to the first object 5 is from 50 g to 70 g, and the pressing pressure ratio range is from 35% to 55%. Obviously, when the hot-pressed film 4 of the second preferred specific embodiment of the present invention connects components, members, etc. of devices such as switches and keyboards that require pressing operations through the hot pressing process, the hot-pressed film 4 of the second preferred specific embodiment of the present invention has excellent properties regarding pressing.

[0052] Through the above detailed description of the present invention, it can be clearly understood that the hot-pressed film of the present invention has advantages such as wear resistance, high hydrophobicity, and good touch. When the hot-pressed film of the present invention connects components, members, etc. of devices such as switches and keyboards that require pressing operations through the hot pressing process, the hot-pressed film of the present invention also has excellent properties regarding pressing.

[0053] Of course, the present invention can also have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding changes and deformations should all fall within the protection scope of the appended claims of the present invention.

Claims

1. A hot-pressing film for decorating the first outer surface of a first object, characterized in that, the hot-pressing film comprises: a carrier film formed of one or any combination of polypropylene, polyethylene, polyethylene terephthalate, and polycarbonate, and the first thickness range of the carrier film is 0.12 mm to 0.18 mm; a decorative layer formed on the carrier film, and the components of the decorative layer by weight include: 4.0 to 6.0 parts by weight of a first thermoplastic polyurethane, 1.0 to 2.0 parts by weight of a colorant, and 12.0 to 15.0 parts by weight of a first solvent. The first thermoplastic polyurethane, the colorant, and the first solvent are mixed and then coated on the carrier film and baked and dried at a first baking temperature to form the decorative layer. The first baking temperature range is 50 °C to 100 °C, and the second thickness range of the decorative layer is 40 μm to 50 μm; and a transparent protective layer formed on the decorative layer, and the components of the transparent protective layer by weight include: 4.0 to 6.0 parts by weight of a second thermoplastic polyurethane, 2.0 to 3.0 parts by weight of a functional additive, and 11.0 to 14.0 parts by weight of a second solvent. The functional additive includes one or any combination of multiple extinction powders, antibacterial agents, and antistatic agents. The second thermoplastic polyurethane, the functional additive, and the second solvent are mixed and then coated on the decorative layer and baked and dried at a second baking temperature to form the transparent protective layer. The second baking temperature range is 50 °C to 100 °C, and the third thickness range of the decorative layer is 50 μm to 60 μm; wherein the hot-pressing film is attached to the first outer surface of the first object with the carrier film by a hot-pressing process. The temperature range of the heating die in the hot-pressing process is 80 °C to 130 °C. Following the ASTM D3363 test standard and under a test load of 200 gf, the number of scratch resistance times of the hot-pressing film is equal to or greater than 50 times, and the Shore hardness value range of the hot-pressing film is 70A to 75A.

2. The hot-pressing film according to claim 1, characterized in that, the functional additive is the multiple extinction powders, and the surface water droplet contact angle range of the hot-pressing film is 80 degrees to 115 degrees.

3. The hot-pressing film according to claim 2, characterized in that, the first solvent is one or any combination of a first dimethylacetamide, a first n-butyl acetate, and a first ethylene glycol monoethyl ether acetate.

4. The hot-pressing film according to claim 3, characterized in that, the second solvent is one or any combination of a second dimethylacetamide, a second n-butyl acetate, and a second ethylene glycol monoethyl ether acetate.

5. The hot-pressing film according to claim 4, characterized in that, during the hot-pressing process, the hot-pressing film is also attached to the second outer surface of a second object with the carrier film to connect the first object and the second object. There is a gap between the first object and the second object, and the peak force range of the second outer surface of the second object pressing downward relative to the first object is 50 g to 70 g and the pressing pressure ratio range is 35% to 55%.

6. A hot-pressing film for decorating the first outer surface of a first object, characterized in that, the hot-pressing film comprises: a carrier film formed of one or any combination of polypropylene, polyethylene, polyethylene terephthalate, and polycarbonate, and the first thickness range of the carrier film is 0.12 mm to 0.18 mm; a transparent protective layer formed on the carrier film, and the components of the transparent protective layer by weight include: 4.0 to 6.0 parts by weight of a first thermoplastic polyurethane, 2.0 to 3.0 parts by weight of a functional additive, and 11.0 to 14.0 parts by weight of a first solvent. The functional additive includes one or any combination of multiple extinction powders, antibacterial agents, and antistatic agents. Among them, the first thermoplastic polyurethane, the functional additive, and the first solvent are mixed and then coated on the decorative layer and baked and dried at a first baking temperature to form the transparent protective layer. The first baking temperature range is 50°C to 100°C, and the second thickness range of the decorative layer is 50 μm to 60 μm; and a decorative layer formed on the transparent protective layer, and the components of the decorative layer by weight include: 4.0 to 6.0 parts by weight of a second thermoplastic polyurethane, 1.0 to 2.0 parts by weight of a coloring agent, and 12.0 to 15.0 parts by weight of a second solvent. Among them, the second thermoplastic polyurethane, the coloring agent, and the second solvent are mixed and then coated on the transparent protective layer and baked and dried at a second baking temperature to form the decorative layer. The second baking temperature range is 50°C to 100°C, and the third thickness range of the decorative layer is 40 μm to 50 μm; wherein the hot-pressing film is attached to the first outer surface of the first object with the decorative layer through a hot-pressing process. The mold temperature range of the hot-pressing process is 80°C to 130°C. Following the ASTM D3363 test standard and under a test load of 200 gf, the number of scratch resistance times of the hot-pressing film is equal to or greater than 50 times, and the Shore hardness value range of the hot-pressing film is 70A to 75A.

7. The hot-pressing film according to claim 6, characterized in that, the functional additive is the multiple extinction powders, and the surface water droplet contact angle range of the hot-pressing film is 80 degrees to 115 degrees.

8. The hot-pressing film according to claim 7, characterized in that, the first solvent is one or any combination of first dimethylacetamide, first n-butyl acetate, and first ethylene glycol monoethyl ether acetate.

9. The hot-pressing film according to claim 8, characterized in that, the second solvent is one or any combination of second dimethylacetamide, second n-butyl acetate, and second ethylene glycol monoethyl ether acetate.

10. The hot-pressing film according to claim 9, characterized in that, during the hot-pressing process, the hot-pressing film is also attached to the second outer surface of a second object with the decorative layer to connect the first object and the second object. There is a gap between the first object and the second object. The peak force range of the second outer surface of the second object pressing downward relative to the first object is 50 g to 70 g, and the pressing pressure ratio range is 35% to 55%.

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