TWI890554B - Light-transmitting artificial leather - Google Patents

Abstract

A light-transmitting artificial leather at least includes a first light-transmitting resin layer, a second light-transmitting resin layer, and a fabric light-transmitting resin layer. The first light-transmitting resin layer is a dark colored light-transmitting resin layer. The second light-transmitting resin layer is formed on the first light-transmitting resin layer, and the second light-transmitting resin layer is a light-colored light-transmitting resin layer or an uncolored light-transmitting resin layer. The fabric light-transmitting resin layer is formed on the second light-transmitting resin layer, and a surface of the fabric light-transmitting resin layer away from the second light-transmitting resin layer has an embossed structure.

Description

Translucent artificial leather

The present invention relates to an artificial leather, in particular to an artificial leather with light transmittance.

Currently, the demand for interior leather materials with light-transmitting and touch-sensitive functions in new energy vehicles and smart cabins continues to increase, and various manufacturers are participating in the research and development and application of light-transmitting interiors.

Therefore, the inventors, in response to the above market demand, conducted intensive research and applied scientific principles, and finally proposed a light-transmitting artificial leather with an innovative layered structure.

The technical problem to be solved by the present invention is to provide an artificial leather with light transmittance in view of the shortcomings of the existing technology.

To solve the above-mentioned technical problems, one of the technical solutions adopted by the present invention is to provide a light-transmitting artificial leather, which comprises at least: a first light-transmitting resin layer, which is a dark-colored light-transmitting resin layer; a second light-transmitting resin layer, formed on a side surface of the first light-transmitting resin layer, and the second light-transmitting resin layer is a light-colored light-transmitting resin layer or an uncolored light-transmitting resin layer; and a fabric light-transmitting resin layer, formed on a side surface of the second light-transmitting resin layer facing away from the first light-transmitting resin layer, and the fabric light-transmitting resin layer has an embossed structure on a side surface facing away from the second light-transmitting resin layer.

Preferably, the embossed structure is formed by a plurality of convex peaks and a plurality of concave valleys arranged alternately.

Preferably, the artificial leather further forms a plurality of light-transmitting blind holes, wherein the plurality of light-transmitting blind holes are respectively formed by being recessed from a surface of the first light-transmitting resin layer away from the second light-transmitting resin layer toward the second light-transmitting resin layer, and the plurality of light-transmitting blind holes are arranged at intervals from each other.

Preferably, the plurality of light-transmitting blind holes respectively penetrate the first light-transmitting resin layer and only partially penetrate the second light-transmitting resin layer, but do not completely penetrate the second light-transmitting resin layer, and do not extend or overlap the fabric light-transmitting resin layer.

Preferably, a diameter of each of the light-transmitting blind holes is between 5 μm and 35 μm.

Preferably, the artificial leather is further defined along a transverse direction as a first area and a second area adjacent to the first area; wherein the first area is defined as a light-transmitting area, the second area is defined as a shielding area, and the plurality of light-transmitting blind holes are located in the first area.

Preferably, the artificial leather further includes: a pattern layer, which is arranged on a side surface of the first light-transmitting resin layer away from the second light-transmitting resin layer; wherein the pattern layer has a first pattern portion and a second pattern portion, the first pattern portion is arranged corresponding to the first area, and the second pattern portion is arranged corresponding to the second area, the first pattern portion is a light-transmitting portion, and the second pattern portion has a pattern mask.

Preferably, the artificial leather further includes a base fabric layer, which is a light-transmitting base fabric layer and is disposed on a side surface of the pattern layer away from the first light-transmitting resin layer.

Preferably, the first light-transmitting resin layer has a first visible light transmittance, and the second light-transmitting resin layer is further defined as a light-colored light-transmitting resin layer, and the second light-transmitting resin layer has a second visible light transmittance greater than the first visible light transmittance, the first visible light transmittance is between 2% and 50%, and the second visible light transmittance is between 30% and 70%; wherein the first light-transmitting resin layer and the second light-transmitting resin layer together form a light-transmitting resin stack whose color varies from dark to light and whose visible light transmittance varies from low to high.

Preferably, the light-transmitting resin layer of the fabric is an uncolored light-transmitting resin layer and has a third visible light transmittance; wherein the third visible light transmittance is greater than the first visible light transmittance and greater than the second visible light transmittance, and the third visible light transmittance is between 50% and 90%.

Preferably, the first light-transmitting resin layer is formed of polyvinyl chloride (PVC) resin, polyurethane resin (PU), thermoplastic polyurethane (TPU), thermoplastic polyolefin elastomer (TPO), or copolymers thereof.

The second light-transmitting resin layer is formed from polyvinyl chloride (PVC), polyurethane (PU), thermoplastic polyurethane (TPU), thermoplastic polyolefin elastomer (TPO), or copolymers thereof. The fabric light-transmitting resin layer is formed from polyvinyl chloride (PVC), polyurethane (PU), thermoplastic polyurethane (TPU), thermoplastic polyolefin elastomer (TPO), or copolymers thereof.

Preferably, the fabric light-transmitting resin layer is formed by: polycarbonate polyurethane resin, polyester polyurethane resin, polyether polyurethane resin, or a mixture of the above resins.

Preferably, the first light-transmitting resin layer has a first thickness between 10 microns and 300 microns, the second light-transmitting resin layer has a second thickness between 10 microns and 150 microns, and the fabric light-transmitting resin layer has a third thickness between 10 microns and 150 microns.

To solve the above technical problems, the present invention also provides a light-transmitting artificial leather, which comprises at least: a first light-transmitting resin layer, which is a dark-colored light-transmitting resin layer; and a second light-transmitting resin layer formed on a side surface of the first light-transmitting resin layer, and the second light-transmitting resin layer is a light-colored light-transmitting resin layer or an uncolored light-transmitting resin layer.

The beneficial effect of the present invention is that the artificial leather with light transmittance provided by the present invention can be made into a light-transmitting resin layer by "a first light-transmitting resin layer, which is a dark-colored light-transmitting resin layer" and "a second light-transmitting resin layer, formed on one side surface of the first light-transmitting resin layer, and the second light-transmitting resin layer is a light-colored light-transmitting resin layer or an uncolored light-transmitting resin layer" and "a fabric light-transmitting resin layer, formed on one side surface of the first light-transmitting resin layer". The second light-transmitting resin layer is located on a side of the surface distal from the first light-transmitting resin layer, and the surface of the fabric light-transmitting resin layer located distal from the second light-transmitting resin layer has an embossed structure. This creates a light-transmitting resin stack with a gradient color from dark to light and a transmittance from low to high. This achieves a gradient effect of color depth and transmittance, while exhibiting balanced light transmittance and shielding properties. The artificial leather provided by this embodiment of the present invention can be used, for example, on the screen of a touch display device or other electronic display devices used for translucent covers.

To further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings provided are only used for reference and description and are not used to limit the present invention.

The following describes the disclosed embodiments of the present invention through specific examples. Those skilled in the art will appreciate the advantages and benefits of the present invention from the disclosure herein. The present invention may be implemented or applied through various other specific embodiments, and the details herein may be modified and altered based on different perspectives and applications without departing from the spirit of the present invention. Furthermore, the accompanying figures of the present invention are for illustrative purposes only and are not intended to be drawn to actual size. This is to be noted in advance. The following embodiments further illustrate the relevant technical aspects of the present invention, but the disclosure is not intended to limit the scope of protection of the present invention. It should be understood that while terms such as "first," "second," and "third" may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are primarily used to distinguish one component from another, or one signal from another. Furthermore, the term "or" as used herein may include any one or more combinations of the associated listed items, as appropriate.

[First embodiment]

Referring to FIG. 1 , the first embodiment of the present invention provides an artificial leather E1, and in particular, provides an artificial leather E1 with light transmittance, which can be applied to a display device or a touch display device and can exhibit balanced light transmittance and shielding properties.

The artificial leather E1 comprises a first light-transmitting resin layer 1, a second light-transmitting resin layer 2, and a surface light-transmitting resin layer 3. The second light-transmitting resin layer 2 is formed on one side of the first light-transmitting resin layer 1, and the surface light-transmitting resin layer 3 is formed on a side of the second light-transmitting resin layer 2 that is away from the first light-transmitting resin layer 1.

The first light-transmitting resin layer 1 is a dark-colored light-transmitting resin layer and has a first visible light transmittance, wherein the first visible light transmittance is between 2% and 50%, and preferably between 2% and 30%, but the present invention is not limited thereto.

The second light-transmitting resin layer 2 is a light-colored light-transmitting resin layer or a colorless (uncolored) light-transmitting resin layer. The second light-transmitting resin layer 2 is preferably a light-colored light-transmitting resin layer. The second light-transmitting resin layer 2 has a second visible light transmittance.

The second visible light transmittance of the second light-transmitting resin layer 2 is greater than the first visible light transmittance of the first light-transmitting resin layer 1. The second visible light transmittance is between 30% and 70%, and preferably between 30% and 65%. Furthermore, the difference between the second visible light transmittance of the second light-transmitting resin layer 2 and the first visible light transmittance of the first light-transmitting resin layer 1 can be, for example, between 10% and 50%, and preferably between 20% and 40%. However, the present invention is not limited to this transmittance difference.

That is, the first light-transmitting resin layer 1 and the second light-transmitting resin layer 2 together form a light-transmitting resin stacking layer whose color gradually changes from dark to light (or from dark to light) and whose light transmittance gradually changes from low to high.

Specifically, the first light-transmitting resin layer 1 (the dark-colored light-transmitting resin layer) is formed from polyvinyl chloride (PVC), polyurethane (PU), thermoplastic polyurethane (TPU), thermoplastic polyolefin elastomer (TPO), or copolymers thereof (e.g., PVC copolymers or polyurethane copolymers). Preferably, the first light-transmitting resin layer 1 is formed from PVC or its copolymers, and thus can be defined as a polyvinyl chloride (PVC) resin layer.

Furthermore, the second light-transmitting resin layer 2 (i.e., the light-colored light-transmitting resin layer) is formed from polyvinyl chloride (PVC), polyurethane (PU), thermoplastic polyurethane (TPU), thermoplastic polyolefin elastomer (TPO), or copolymers thereof (e.g., PVC copolymers or polyurethane copolymers). Preferably, the second light-transmitting resin layer 2 is formed from PVC or its copolymers, and thus can also be defined as a polyvinyl chloride (PVC) resin layer.

The first light-transmitting resin layer 1 is added with a dye (colorant), and the second light-transmitting resin layer 2 is also added with a dye (colorant), wherein the amount of dye added to the first light-transmitting resin layer 1 is greater than the amount of dye added to the second light-transmitting resin layer 2 (or the color of the dye of the first light-transmitting resin layer 1 is darker than the color of the dye of the second light-transmitting resin layer 2). Therefore, the first light-transmitting resin layer 1 exhibits a darker or darker color and is a dark-colored light-transmitting resin layer, and has a lower first visible light transmittance (e.g., 2% to 50%).

The second light-transmitting resin layer 2 exhibits a lighter or paler color and is a lightly colored light-transmitting resin layer, and has a relatively high second visible light transmittance (e.g., 30% to 70%). It should be noted that the type and amount of the dye (colorant) added to the first light-transmitting resin layer 1 and the second light-transmitting resin layer 2 can be varied based on the desired visible light transmittance and color, and are not limited by the present invention.

The light-transmitting resin layer 3 is a colorless (uncolored) light-transmitting resin layer having a third visible light transmittance. The third visible light transmittance of the light-transmitting resin layer 3 is greater than the first visible light transmittance of the first light-transmitting resin layer 1. The third visible light transmittance is between 50% and 90%, and preferably between 65% and 90%.

In this embodiment, the third visible light transmittance of the transparent resin layer 3 of the fabric is preferably greater than the second visible light transmittance of the second transparent resin layer 2, and the difference between the third visible light transmittance and the second visible light transmittance can be, for example, 10%~30%, but the present invention is not limited thereto.

In this embodiment, the surface of the translucent resin layer 3 of the fabric, which is away from the second translucent resin layer 2, has an embossed structure 31, and the embossed structure 31 is formed by a plurality of convex peaks 31a and a plurality of concave valleys 31b arranged alternately to provide the leather feel required by artificial leather.

Furthermore, the fabric light-transmitting resin layer 3 (the colorless light-transmitting resin layer) is formed from polyvinyl chloride (PVC) resin, polyurethane resin (PU), thermoplastic polyurethane (TPU), thermoplastic polyolefin elastomer (TPO), or a copolymer thereof. The fabric light-transmitting resin layer 3 is preferably formed from polyurethane resin (PU), and therefore can be defined as a polyurethane resin (PU) layer.

In some embodiments of the present invention, the fabric light-transmitting resin layer 3 is formed by: polycarbonate-type polyurethane resin, polyester-type polyurethane resin, polyether-type polyurethane resin, thermoplastic polyurethane (TPU), or a mixture of the above resins.

Preferably, the fabric transparent resin layer 3 is formed by a polycarbonate type polyurethane resin. Accordingly, the fabric transparent resin layer 3 can have a high modulus and high wear resistance.

Furthermore, the first light-transmitting resin layer 1 has a first thickness T1, and the first thickness T1 is between 10 micrometers and 300 micrometers, preferably between 50 micrometers and 200 micrometers, and particularly preferably between 100 micrometers and 150 micrometers.

The second light-transmitting resin layer 2 has a second thickness T2 ranging from 10 microns to 150 microns, preferably from 60 microns to 130 microns, and particularly preferably from 80 microns to 100 microns. In this embodiment, the second thickness T2 is preferably less than the first thickness T1, but the present invention is not limited thereto.

The transparent resin layer 3 of the fabric has a third thickness T3 (i.e., the distance from the peak 31a to the bottom of the resin layer 3). This third thickness T3 is less than the second thickness T2. This third thickness T3 is between 10 microns and 150 microns, preferably between 20 microns and 40 microns, and more preferably between 25 microns and 35 microns.

In general, the total thickness of the first thickness T1, the second thickness T2, and the third thickness T3 is not less than 30 micrometers and not more than 600 micrometers, preferably not less than 120 micrometers and not more than 280 micrometers, but the present invention is not limited thereto.

It is worth noting that in some embodiments of the present invention, the first light-transmitting resin layer 1 and the second light-transmitting resin layer 2 can be the same or independently present in black, gray, brown, red, orange, yellow, green, blue, indigo, violet, or other derived colors. For example, in this embodiment, the dye (colorant) is a black colorant (such as carbon black), and the amount of dye used in the first light-transmitting resin layer 1 is greater than the amount of dye used in the second light-transmitting resin layer 2. As a result, the first light-transmitting resin layer 1 is a dark black light-transmitting resin layer, while the second light-transmitting resin layer 2 is a light black light-transmitting resin layer, thereby forming a light-transmitting resin stack with a gradient from dark black to light black and a transmittance from low to high.

Based on the above configuration, the artificial leather E1 provided in the first embodiment of the present invention comprises a stack of light-transmitting resin layers whose colors change from dark to light and whose light transmittance changes from low to high. This achieves a gradient effect of color depth and light transmittance, while also exhibiting a balanced light transmittance and light-shielding properties. By stacking different resin layers, such as polyvinyl chloride (PVC) and polyurethane (PU), the artificial leather E1 offers design flexibility, durability, and light transmittance. Each resin layer has a different thickness, thereby achieving a better balance between light transmittance, light shielding, and support strength. The first light-transmitting resin layer 1 is thicker, providing a darker color and a supporting effect. The second light-transmitting resin layer 2 is an intermediate layer, providing a lighter color to produce a gradual change in color and transmittance. The fabric light-transmitting resin layer 3 is thinner, ensuring good transparency and flexibility.

At the same time, the embossed texture of the transparent resin layer 3 imitates natural leather, enhancing the touch feel and leather visual effect. The artificial leather E1 provided by the embodiment of the present invention can be used, for example, on the screen of a touch display device or other electronic display devices used for translucent covers.

It should be noted that the visible light transmittance referred to in this article is tested using the ASTM D1003 standard, which is specifically used to measure the haze and light transmittance of transparent plastic materials. This test uses a spectrophotometer to determine the material's light transmittance.

[Second embodiment]

2 , the second embodiment of the present invention also provides an artificial leather E2, which is substantially the same as the first embodiment described above, except that the artificial leather E2 of the second embodiment of the present invention further has a plurality of light-transmitting blind holes O formed in a concave manner.

The plurality of light-transmitting blind holes O are formed by being recessed from the surface of the first light-transmitting resin layer 1 that is distal from the second light-transmitting resin layer 2 (e.g., the bottom surface of the first light-transmitting resin layer 1 in Figure 2 ) toward the second light-transmitting resin layer 2, and the plurality of light-transmitting blind holes O are arranged spaced apart from each other. In other words, the plurality of light-transmitting blind holes O penetrate the first light-transmitting resin layer 1 and only partially penetrate the second light-transmitting resin layer 2, but do not completely penetrate the second light-transmitting resin layer 2, nor do they extend or overlap the surface light-transmitting resin layer 3.

The diameter D of each of the light-transmitting blind holes O can be, for example, between 5 and 35 microns, preferably between 10 and 30 microns, and particularly preferably between 15 and 25 microns. In other words, the diameter D of each of the light-transmitting blind holes O is smaller than the first thickness T1 of the first light-transmitting resin layer 1 and smaller than the second thickness T2 of the second light-transmitting resin layer 2.

A distance P between any two adjacent light-transmitting blind holes O in the plurality of light-transmitting blind holes O is between 10 μm and 40 μm, preferably between 10 μm and 35 μm, and particularly preferably between 15 μm and 35 μm. Each light-transmitting blind hole O can be formed by laser drilling, but is not limited thereto.

Furthermore, the spacing distance G between the top of each of the light-transmitting blind holes O and the bottom surface of the light-transmitting resin layer 3 of the fabric is not less than 3 microns, preferably not less than 5 microns, and preferably not less than 8 microns.

Furthermore, in the second embodiment of the present invention, the artificial leather E2 is further defined along a transverse direction as a first area A1 and a second area A2 adjacent to the first area A1.

The plurality of light-transmitting blind holes O are located in the first area A1. That is, the portions of the first and second light-transmitting resin layers 1 and 2 of the artificial leather E2 located in the first area A1 are formed with the plurality of light-transmitting blind holes O, while the portions of the first and second light-transmitting resin layers 1 and 2 of the artificial leather E2 located in the second area A2 are not formed with any light-transmitting blind holes O.

In the second embodiment of the present invention, the first area A1 is defined as a light-transmitting area, while the second area A2 is defined as a shielded area (non-light-transmitting area). The plurality of light-transmitting blind holes O disposed in the first area A1 can partially enhance the light transmittance of the artificial leather E2 in the first area A1.

Furthermore, the artificial leather E2 can provide locally enhanced light transmittance through the structural design of "multiple light-transmitting blind holes O respectively penetrating the first light-transmitting resin layer 1 and only partially penetrating the second light-transmitting resin layer 2, and not completely penetrating the second light-transmitting resin layer 2", and has both shielding properties and the support properties of the leather material. At the same time, it can prevent moisture in the external environment from entering the interior of the artificial leather E2, so as to avoid affecting the material life of the artificial leather, and also avoid affecting the reliability of the electronic display device arranged on the inner side of the artificial leather E2.

In a second embodiment of the present invention, the portion of the artificial leather E2 located in the first area A1 (translucent area) can be attached to the display screen of an electronic display device, allowing the screen image to be displayed through the artificial leather E2. Furthermore, when the display screen is not displaying an image, the artificial leather E2 can obscure the display screen, thereby creating a leather-like visual effect. Alternatively, the portion of the artificial leather E2 located in the second area A2 (obstructing area) can be placed in other areas of the display screen, such as the frame or casing of the electronic display device, or covering a surface area outside the electronic display device (such as the interior or exterior casing of a vehicle). Due to its unique functional differentiation and structural design, the artificial leather E2 with the above design is ideal for application scenarios that require the combination of beauty and functionality, such as automotive interiors, smart home devices, and other electronic consumer products.

[Third embodiment]

Referring to FIG. 3 , the third embodiment of the present invention also provides an artificial leather E3, which is substantially similar to the artificial leather E2 of the second embodiment, except that the artificial leather E3 of the third embodiment of the present invention further includes a pattern layer 4. The pattern layer 4 is disposed on a surface of the first light-transmitting resin layer 1 that is distal from the second light-transmitting resin layer 2 (e.g., the bottom surface of the first light-transmitting resin layer 1 in FIG. 3 ).

The pattern layer 4 has a first pattern portion 41 and a second pattern portion 42. The first pattern portion 41 is provided corresponding to the first area A1, and the second pattern portion 42 is provided corresponding to the second area A2. The first pattern portion 41 of the pattern layer 4 is light-transmissive, allowing the image displayed on the electronic display screen to pass through. The second pattern portion 42 has a pattern mask that is used to cover the area outside the electronic display screen. The pattern of the pattern mask can be displayed externally through the first light-transmissive resin layer 1, the second light-transmissive resin layer 2, and the fabric light-transmissive resin layer 3.

In this embodiment, the pattern layer 4 may be, for example, a resin medium layer, and the designed pattern is formed on the resin medium layer by printing ink, thereby forming the above-mentioned first pattern portion 41 and a second pattern portion 42, but the present invention is not limited thereto.

[Fourth embodiment]

Referring to FIG. 4 , the fourth embodiment of the present invention also provides an artificial leather E4, which is substantially similar to the artificial leather E3 of the third embodiment, except that the artificial leather E4 further comprises a base fabric layer 5. The base fabric layer 5 is a light-transmitting base fabric layer and is disposed on the side of the pattern layer 4 facing away from the first light-transmitting resin layer 1. The base fabric layer 5 provides sufficient support for the artificial leather E4.

In some embodiments of the present invention, the base fabric layer 5 may be, for example, a polyester fiber base fabric, a nylon base fabric, a polyvinyl formaldehyde fiber (PVA fiber) base fabric, a polypropylene fiber base fabric, a fiberglass base fabric, or an acrylic fiber base fabric, but the present invention is not limited thereto.

[Beneficial Effects of the Embodiments]

One of the beneficial effects of the present invention is that the light-transmitting artificial leather provided by the present invention can be made by "a first light-transmitting resin layer, which is a dark-colored light-transmitting resin layer" and "a second light-transmitting resin layer, formed on one side surface of the first light-transmitting resin layer, and the second light-transmitting resin layer is a light-colored light-transmitting resin layer or an uncolored light-transmitting resin layer" and "a fabric light-transmitting resin layer, The second light-transmitting resin layer is formed on a side of the surface remote from the first light-transmitting resin layer, and the surface of the fabric light-transmitting resin layer remote from the second light-transmitting resin layer has an embossed structure. This technical solution creates a light-transmitting resin stack with a color that gradually changes from dark to light and a light transmittance that gradually changes from low to high. This achieves a gradient effect of color depth and light transmittance, and exhibits balanced light transmittance and shielding properties.

The artificial leather provided by the embodiment of the present invention can be applied, for example, to the screen of a touch display device or other electronic display devices applied to translucent covers.

Furthermore, the artificial leather can provide locally enhanced light transmittance through the structural design of "multiple light-transmitting blind holes respectively penetrating the first light-transmitting resin layer and only partially penetrating the second light-transmitting resin layer, but not completely penetrating the second light-transmitting resin layer", while also having both shielding properties and the support properties of the leather material. At the same time, it can prevent moisture from the external environment from entering the interior of the artificial leather, thereby avoiding affecting the material life of the artificial leather, and also avoid affecting the reliability of the electronic display device arranged on the inner side of the artificial leather.

The contents disclosed above are merely preferred feasible embodiments of the present invention and do not limit the scope of the patent application of the present invention. Therefore, any equivalent technical changes made by using the contents of the description and drawings of the present invention are included in the scope of the patent application of the present invention.

E1, E2, E3, E4: Artificial leather 1: First light-transmitting resin layer 2: Second light-transmitting resin layer 3: Fabric light-transmitting resin layer 31: Embossed structure 31a: Grain peaks 31b: Grain valleys 4: Pattern layer 41: First pattern section 42: Second pattern section 5: Base fabric layer T1: First thickness T2: Second thickness T3: Third thickness O: Light-transmitting blind hole D: Aperture diameter P: Pitch G: Distance A1: First area A2: Second area

FIG1 is a schematic diagram of a light-transmitting artificial leather according to a first embodiment of the present invention.

FIG2 is a schematic diagram of a light-transmitting artificial leather according to a second embodiment of the present invention.

FIG3 is a schematic diagram of a light-transmitting artificial leather according to a third embodiment of the present invention.

FIG4 is a schematic diagram of a light-transmitting artificial leather according to a fourth embodiment of the present invention.

E1: Artificial leather

1: First light-transmitting resin layer

2: Second light-transmitting resin layer

3: Fabric translucent resin layer

31: Embossed structure

31a: Peak

31b: Valley

T1: First thickness

T2: Second thickness

T3: Third thickness

Claims (14)

A light-transmitting artificial leather comprises: a first light-transmitting resin layer, which is a dark-colored light-transmitting resin layer and has a first visible light transmittance between 2% and 50%; a second light-transmitting resin layer, which is formed on a side surface of the first light-transmitting resin layer, and the second light-transmitting resin layer is a light-colored light-transmitting resin layer and has a second visible light transmittance between 30% and 70%; wherein the second visible light transmittance is greater than the first visible light transmittance, and the difference is between 10% and 50%; wherein the first light-transmitting resin layer and the second light-transmitting resin layer are formed on a side surface of the first light-transmitting resin layer, and the second light-transmitting resin layer is ... visible light transmittance is greater than the first visible light transmittance, and the difference is between 10% and 50%; wherein the first light-transmitting resin layer and the second light-transmitting resin layer are formed on a side surface of the first light-transmitting resin layer, and the second light-transmitting resin layer is formed on a side surface of the first light-transmitting resin layer, and the second visible light transmittance is greater than the first visible light transmittance, and the difference is between 10% and 50%. Two light-transmitting resin layers together form a light-transmitting resin stacking layer whose color varies from dark to light and whose visible light transmittance varies from low to high; and a fabric light-transmitting resin layer is formed on a side surface of the second light-transmitting resin layer, and the fabric light-transmitting resin layer has an embossed structure on a side surface away from the second light-transmitting resin layer; wherein the fabric light-transmitting resin layer is an uncolored light-transmitting resin layer and has a third visible light transmittance of 50% to 90%; wherein the third visible light transmittance is greater than the second visible light transmittance, and the difference is 10% to 30%. The artificial leather as described in claim 1, wherein the embossed structure is formed by alternatingly arranging a plurality of convex peaks and a plurality of concave valleys. The artificial leather as described in claim 1, wherein the artificial leather is further formed with a plurality of light-transmitting blind holes, wherein the plurality of light-transmitting blind holes are respectively formed by being recessed from a surface of the first light-transmitting resin layer farthest from the second light-transmitting resin layer toward the second light-transmitting resin layer, and the plurality of light-transmitting blind holes are arranged at intervals from each other. The artificial leather as described in claim 3, wherein the plurality of light-transmitting blind holes respectively penetrate the first light-transmitting resin layer and only partially penetrate the second light-transmitting resin layer, but do not completely penetrate the second light-transmitting resin layer, and do not extend or overlap the fabric light-transmitting resin layer. The artificial leather as described in claim 3, wherein a pore diameter of each of the light-transmitting blind holes is between 5 μm and 35 μm. The artificial leather as described in claim 3, wherein the artificial leather is further defined along a horizontal direction as a first area and a second area adjacent to the first area; wherein the first area is defined as a light-transmitting area, and the second area is defined as a shielding area, and the plurality of light-transmitting blind holes are located in the first area. The artificial leather as described in claim 6 further includes: a pattern layer, which is arranged on a side surface of the first light-transmitting resin layer away from the second light-transmitting resin layer; wherein the pattern layer has a first pattern portion and a second pattern portion, the first pattern portion is arranged corresponding to the first area, and the second pattern portion is arranged corresponding to the second area, the first pattern portion is a light-transmitting portion, and the second pattern portion has a pattern mask. The artificial leather as described in claim 7 further includes: a base fabric layer, which is a light-transmitting base fabric layer and is arranged on a side surface of the pattern layer away from the first light-transmitting resin layer. The artificial leather as described in claim 1, wherein the first visible light transmittance is between 2% and 30%, the second visible light transmittance is between 30% and 65%, and the difference between the second visible light transmittance and the first visible light transmittance is between 20% and 40%. The artificial leather as described in claim 9, wherein the third visible light transmittance is between 65% and 90%. The artificial leather as described in claim 1, wherein the first light-transmitting resin layer is formed by polyvinyl chloride (PVC) resin, polyurethane resin (PU), thermoplastic polyurethane (TPU), thermoplastic polyolefin elastomer (TPO), or their copolymers; the second light-transmitting resin layer is formed by polyvinyl chloride resin (PVC), polyurethane resin (PU), thermoplastic polyurethane (TPU), thermoplastic polyolefin elastomer (TPO), or their copolymers; and the fabric light-transmitting resin layer is formed by polyvinyl chloride (PVC) resin, polyurethane resin (PU), thermoplastic polyurethane (TPU), thermoplastic polyolefin elastomer (TPO), or their copolymers. The artificial leather as described in claim 11, wherein the light-transmitting resin layer of the fabric is formed by: polycarbonate polyurethane resin, polyester polyurethane resin, polyether polyurethane resin, or a mixture of the above resins. The artificial leather as described in claim 1, wherein the first light-transmitting resin layer has a first thickness between 10 microns and 300 microns, the second light-transmitting resin layer has a second thickness between 10 microns and 150 microns, and the fabric light-transmitting resin layer has a third thickness between 10 microns and 150 microns. A light-transmitting artificial leather comprises: a first light-transmitting resin layer, which is a dark-colored light-transmitting resin layer and has a first visible light transmittance between 2% and 50%; and a second light-transmitting resin layer, formed on a side surface of the first light-transmitting resin layer, wherein the second light-transmitting resin layer is a light-colored light-transmitting resin layer and has a second visible light transmittance between 30% and 70%. The second visible light transmittance is greater than the first visible light transmittance by a difference of 10% to 50%. The first light-transmitting resin layer and the second light-transmitting resin layer together form a light-transmitting resin stack whose color varies from dark to light and whose visible light transmittance varies from low to high.