TWI789605B - Optical concave-convex texture superimposition film - Google Patents

Abstract

The invention discloses an optical concavo-convex texture superimposed film, which comprises a first sheet and at least one A second sheet, the first sheet is attached above the second sheet; the first sheet includes a first optical concave-convex texture layer with random multi-directional refraction, and the second sheet includes a single A second optical concavo-convex texture layer that magnifies toward light concentration. Through the superposition of the first sheet and the second sheet, the first sheet can change the reflection direction of the second sheet, so that the product printed with the optical concave-convex texture superimposed film does not appear to have dizziness and glare, and makes the visual The effect is softer, and the three-dimensional effect can be enhanced; meanwhile, the combination of the first sheet and the second sheet can be in various forms, and can be applied in fields such as printing, packaging, artificial leather, etc., and has a wide range of applications. The invention is applied to the field of optical films.

Description

Optical concave-convex texture overlay film

The invention relates to the technical field of optical films, in particular to an optical concave-convex texture superimposed film.

Existing flat prints include two-dimensional images and three-dimensional images. The prints of two-dimensional images are relatively mature, but the prints of two-dimensional images are limited to two-dimensional effects. Therefore, the image effect of two-dimensional image prints has Certain limitations. And existing three-dimensional image print generally adopts a kind of concave-convex film to produce three-dimensional effect, and the visual effect produced is also unsatisfactory, gives the feeling of dazzling, not soft and dizzy.

An optical concave-convex texture superimposed film can improve the stereoscopic visual effect of printed products. Compared with traditional three-dimensional image printed matter, the visual effect is softer, and the combination forms are various, and the application scenarios are extensive.

In order to solve the above technical problems, the present invention provides an optical concavo-convex texture superimposed film, comprising a first sheet and at least one second sheet, the first sheet is attached above the second sheet; The first sheet includes a first optical concave-convex texture layer with random multi-directional refraction, and the second sheet includes a second optical concave-convex texture layer with unidirectional light focusing and amplification.

As a further improvement, a transparent adhesive layer is further provided between the first sheet and the second sheet, and the first sheet and the second sheet are connected through the adhesive layer.

As a further improvement, when there are multiple second sheets, the second optical concave-convex texture layers of different second sheets have the same or different preset refraction angles.

As a further improvement, the first sheet has a first shape, and the second sheet has a second shape.

As a further improvement, rainbow paper is also pasted on the first sheet.

As a further improvement, the second optical concave-convex texture layer is a Fresnel lens.

As a further improvement, the first sheet also includes a first protective layer and a first bottom layer, and the first protective layer, the first optical concave-convex texture layer, and the first bottom layer are laminated sequentially from top to bottom; A protective layer, the first optical concave-convex texture layer, and the first bottom layer are respectively transparent or translucent; the second sheet also includes a second protective layer, a second bottom layer and an adhesive layer, and the second protective layer, the first The second optical concave-convex texture layer, the second bottom layer, and the attachment layer are laminated sequentially from top to bottom; the second bottom layer, the second optical concave-convex texture layer, and the attachment layer are respectively transparent or translucent, and the second protection Layers are transparent or translucent or opaque.

As a further improvement, the first protective layer, the first bottom layer, the second protective layer and the second bottom layer are respectively provided with an electroplating film or a first printed pattern or a decorative film.

As a further improvement, the first optical concave-convex texture layer and/or the second optical concave-convex texture layer are respectively provided with second printing patterns.

The present invention also provides a second optical concave-convex texture superimposed film, which adopts the following technical scheme: an optical concave-convex texture superimposed film, which includes a third sheet, and the third sheet includes sequentially stacked irregular multi-directional refraction The first optical concave-convex texture layer and the second optical concave-convex texture layer for unidirectional light focusing and amplification.

The first optical concave-convex texture layer in the first sheet of the present invention has fine and irregular concave-convex textures, which can diverge transmitted light in multiple directions and produce the effect of random multi-directional refraction. The second optical concave-convex texture layer in the second sheet has a concave-convex texture different from that of the first optical concave-convex texture layer, which has the effect and effect of unidirectional light focusing and amplification, that is, through the second The light refracted by the optical concave-convex texture layer will only diverge in a single direction, and the second optical concave-convex texture layer in the second sheet has the function of amplifying and concentrating light. The superposition of the first sheet and the second sheet can produce gorgeous and three-dimensional visual effects.

Both the first sheet and the second sheet can use transparent or translucent films, and the two can be combined with each other in use to achieve visual effects with different light intensity. For example: Combination mode 1 is transparent first sheet and transparent second sheet; Combination mode 2 is transparent first sheet and translucent second sheet; Combination mode 3 is translucent first sheet and a transparent second sheet; combination mode four is a translucent first sheet and a translucent second sheet.

At the same time, because the second optical concave-convex texture layer of the second sheet is refracted in one direction, when multiple sheets are stacked, different second optical concave-convex texture layers can have the same or different preset refraction angles, It makes different three-dimensional visual senses for different angles of printed products, which greatly enriches the packaging visual effect of printed products.

The second optical concave-convex texture superimposed film disclosed by the present invention not only has the main advantages of the first optical concave-convex texture superimposed film, but also can save the number of sheets and raw materials compared with the first optical concave-convex texture superimposed film; It also reduces the process of laminating the first sheet and the second sheet, so the workload is reduced. However, the first optical concave-convex texture superimposed film has more second sheets than the second optical concave-convex texture superimposed film, so the combination of the first optical concave-convex texture superimposed film will be more.

1: first sheet

11: The first protective layer

12: The first optical concave-convex texture layer

13: The first bottom layer

2: Second sheet

21: Second protective layer

22: The second optical concave-convex texture layer

23: Second Bottom

24: Attachment layer

3: glue layer

4: Items

Fig. 1 is a schematic structural view of an optical concave-convex texture superimposed film according to an embodiment of the present invention; Fig. 2 is a schematic structural diagram of a second optical concave-convex texture layer according to an embodiment of the present invention; Fig. 3 is an optical concave-convex texture superimposed film according to an embodiment of the present invention and Item connection diagram.

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical The orientations or positional relationships indicated by "straight", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description , not to indicate or imply that the device or element referred to must have a specific position, are constructed and operate in a particular orientation and are therefore not to be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

Please refer to FIG. 1 to FIG. 3 , an optical concave-convex texture superimposed film, including a first sheet 1 and at least one second sheet 2, and the first sheet 1 is attached on the top of the second sheet 2 ; The first sheet 1 includes a first optical concave-convex texture layer 12 with random multi-directional refraction, and the second sheet 2 includes a second optical concave-convex texture layer 22 that unidirectionally condenses and amplifies light.

The principle of the imaging effect of the optical concave-convex texture superimposed film of this embodiment is: the light transmitted through the first optical concave-convex texture layer 12 in the first sheet 1 is refracted in multiple directions, and the refracted light is somewhat similar to diffuse reflection The resulting light, which has no fixed direction, radiates in multiple directions. And the second optical concave-convex texture layer 22 in the second sheet 2 has the effect of unidirectional light focusing and amplification, and the light refracted by the second optical concave-convex texture layer 22 in the second sheet 2 will only diverge in a single direction. The second optical concave-convex texture layer 22 in the sheet 2 has the function of amplifying and concentrating light. The superimposition of the first sheet 1 and the second sheet 2 can produce brilliant and three-dimensional visual effects. Both the first sheet 1 and the second sheet 2 can use transparent or translucent films, and the two can be combined with each other, such as: combination mode one is transparent first sheet 1 and transparent second sheet 2; combination Mode two is transparent first sheet 1 and translucent second sheet 2; combination mode three is translucent first sheet 1 and transparent second sheet 2; combination mode four is translucent first sheet Sheet 1 and the translucent first Two sheets 2. The number of the first sheet 1 is one, if the number of the first sheet 1 is too much, it may block the light; because the second optical concave-convex texture layer 22 of the second sheet 2 is refracted in one direction, multiple sheets When it is used, it is not easy to block the light, so the number of second sheets 2 can be multiple. When multiple second sheets 2 are used, the types of each second sheet 2 can be the same or different, that is, different second sheets. The second optical concave-convex texture layer 22 of the sheet 2 has the same or different preset refraction angles. It is sufficient as long as each second sheet material 2 has the effect of amplifying and concentrating light. The preset refraction angle refers to the angle between the input light and the output light when it passes through the second sheet 2 . Moreover, different visual effects can be produced by using different numbers or different types of second sheets 2 combined with one first sheet 1 . A more preferred solution is that, under normal circumstances, only one second sheet 2 is required.

Through the superposition of the first sheet 1 and the second sheet 2, the first sheet 1 can change the reflection direction of the second sheet 2, so that the product printed with the optical concave-convex texture superimposed film does not look dizzy and dazzling sense, making the visual effect softer and enhancing the three-dimensional effect; at the same time, the combination of the first sheet 1 and the second sheet 2 can be applied in a wide range of fields such as printing, packaging, and artificial leather.

In this embodiment, as a further improvement of the above technical solution, a transparent adhesive layer 3 is also provided between the first sheet 1 and the second sheet 2, and the first sheet 1 and the second sheet 2 Connected by glue layer 3. The adhesive layer 3 has the functions of fixing and protecting the first sheet 1 and the second sheet 2 .

In this embodiment, as a further improvement of the above technical solution, the first sheet 1 has a first shape, and the second sheet 2 has a second shape. The first shape and the second shape can also be combined freely, such as the first shape is a rectangle, and the second shape is a pentagon, a five-pointed star, or a circle, and the size of the pentagon, five-pointed star, or circle is much smaller than the rectangle. Attach multiple pentagons or five-pointed stars to the first sheet at the same time Each of the second sheets 2 can be arranged in a variety of arrangements, so that the visual effect can also be increased.

In this embodiment, as a further improvement of the above technical solution, the first sheet 1 is also pasted with rainbow paper. By adding rainbow paper, another visual effect can be formed, making the visual effect of the optical concave-convex texture superimposed film more diversification. The rainbow paper can be arranged on the top surface of the first sheet 1 or on the bottom surface of the first sheet 1 .

In this embodiment, as a further improvement of the above technical solution, the second optical concave-convex texture layer 22 is a Fresnel lens.

In this embodiment, as a further improvement of the above technical solution, the first sheet 1 further includes a first protective layer 11 and a first bottom layer 13, the first protective layer 11, the first optical concave-convex texture layer 12, the first A bottom layer 13 is laminated sequentially from top to bottom; the first protective layer 11 and the first bottom layer 13 have a protective effect on the first optical concave-convex texture layer 12, and at the same time, on the first protective layer 11 and/or the first bottom layer 13 The electroplating film or the first printing pattern can be respectively provided or a decorative film can be added, and the first printing pattern can be a single color or a mixed color or pattern. Wherein, the first protective layer 11, the first optical concave-convex texture layer 12, and the first bottom layer 13 are respectively transparent or translucent. The first protective layer 11, the first optical concave-convex texture layer 12, and the first bottom layer 13 are transparent or translucent and controlled by an additional process. If the first protective layer 11, the first optical concave-convex texture layer 12, and the first bottom layer 13 are not used If the electroplating film or the first printed pattern or the decorative film is added, it is transparent; if the first protective layer 11, the first optical concave-convex texture layer 12, and the first bottom layer 13 adopt the electroplated film or the first printed pattern or add the decorative film, etc. , then it is translucent. Specifically, the rainbow paper can be provided on the top surface of the first protective layer 11 or the bottom surface of the first bottom layer 13 .

The second sheet 2 also includes a second protective layer 21, a second bottom layer 23 and an adhesive layer 24, the second protective layer 21, the second optical concave-convex texture layer 22, the second bottom layer 23, and the adhesive layer 24. to the bottom fit settings. The second protective layer 21 and the second bottom layer 23 have a protective effect on the second optical concave-convex texture layer 22. At the same time, the second protective layer 21 and/or the second bottom layer 23 can be respectively provided with an electroplating film or a first printed pattern or increase decoration. For the film, the first printed pattern may be a single color or a mixture of colors or patterns. On the first protective layer 11, the first bottom layer 13, the second protective layer 21 and the second bottom layer 23, the electroplated film or the first printed pattern or the addition of a decorative film will not affect each other as decorations. Therefore, the first protective layer 11, The first bottom layer 13, the second protective layer 21 and the second bottom layer 23 can be freely combined by using electroplating films or first printed patterns or adding decorative films as decorations, and can realize the combination of various colors, patterns and electroplating films. Of course, one or more of the first protective layer 11 , the first bottom layer 13 , the second protective layer 21 and the second bottom layer 23 may not use the electroplated film or the first printed pattern or add a decorative film as decoration. The optical concave-convex texture superimposed film can be attached to the item 4 through the attachment layer 24, and the item 4 can be a mobile phone case or the like. The second optical concave-convex texture layer 22 , the second bottom layer 23 , and the attachment layer 24 are respectively transparent or translucent, and the second protective layer 21 is transparent or semitransparent or opaque. When the second protective layer 21 is in solid color, it is opaque. The transparent or translucent principles of the second optical concave-convex texture layer 22, the second bottom layer 23, and the attachment layer 24 are the same as the transparent or opaque principles of the first protective layer 11, the first optical concave-convex texture layer 12, and the first bottom layer 13. This will not be repeated here. Further preferably, the first optical concave-convex texture layer 12 and/or the second optical concave-convex texture layer 22 are respectively provided with a second printing pattern, and the second printing pattern and the first printing pattern can be superimposed. The first optical concave-convex texture layer 12 and the second optical concave-convex texture layer 22 may not be provided with the second printing pattern, and they can be freely combined. Specifically, the adhesive layer is located between the first bottom layer 13 and the second protective layer 21 .

The present invention also provides a second optical concave-convex texture superimposed film, which adopts the following technical scheme: an optical concave-convex texture superimposed film, which includes a third sheet, and the third sheet includes sequentially stacked irregular multi-directional refraction The first optical concave-convex texture layer 12 and the second optical Concavo-convex texture layer 22. The first optical concave-convex texture layer 12 and the second optical concave-convex texture layer 22 of the third sheet can be directly laminated and superimposed, and a certain side is used as the front side as required, generally speaking, the side where the first optical concave-convex texture layer 12 is located is the front side. The third sheet may also comprise a transparent glue layer 3 . The first optical concave-convex texture layer 12 and the second optical concave-convex texture layer 22 are provided on both sides of the adhesive layer 3 respectively, which can reduce material. The third sheet can also include a third protective layer and a third bottom layer. The function and material of the third protective layer are the same as those of the first protective layer 11 and the second protective layer 21. The function and material of the third bottom layer are the same as those of the first bottom layer 13. and the second bottom layer 23 are the same; the main difference between the second optical concave-convex texture superimposed film and the first optical concave-convex texture superimposed film is that the number of sheets is different. The second optical concave-convex texture superimposed film can also have rainbow paper, the first printing pattern, the second printing pattern, etc. in the first optical concave-convex texture superimposed film; The texture layer 22 is set to be transparent or opaque, which will not be repeated here. Compared with the first optical concave-convex texture superimposed film, the second optical concave-convex texture superimposed film has a simpler structure, fewer processing steps, and is more economical.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, some improvements and modifications can also be made. It should also be regarded as the protection scope of the present invention.

1: first sheet

11: The first protective layer

12: The first optical concave-convex texture layer

13: The first bottom layer

2: Second sheet

21: Second protective layer

22: The second optical concave-convex texture layer

23: Second Bottom

24: Attachment layer

3: glue layer

Claims (9)

An optical concave-convex texture superimposed film, comprising: a first sheet and at least one second sheet, the first sheet is attached above the second sheet; the first sheet includes random multi The first optical concave-convex texture layer of directional refraction, the second sheet includes a second optical concave-convex texture layer with unidirectional light focusing and amplification; wherein a transparent glue is also set between the first sheet and the second sheet layer, the first sheet and the second sheet are connected by a glued layer. According to the optical concave-convex texture superimposed film according to claim 1, wherein when there are multiple second sheets, the second optical concave-convex texture layers of different second sheets have the same or different preset refraction angles. The optical concave-convex texture superimposed film according to claim 1, wherein the first sheet has a first shape, and the second sheet has a second shape. According to the optical concave-convex texture superimposed film according to claim 1, rainbow paper is also pasted on the first sheet. The optical concave-convex texture superimposed film according to claim 1, wherein the second optical concave-convex texture layer is a Fresnel lens. According to the optical concave-convex texture superimposed film according to any one of claims 1 to 5, wherein the first sheet further includes a first protective layer and a first bottom layer, the first protective layer, the first optical concave-convex texture layer, The first bottom layer is laminated sequentially from top to bottom; the first protective layer, the first optical concave-convex texture layer, and the first bottom layer are respectively transparent or translucent; the second sheet also includes a second protective layer, a second The second bottom layer and the attachment layer, the second protective layer, the second optical concave-convex texture layer, the second bottom layer, and the attachment layer are arranged sequentially from top to bottom; The second bottom layer, the second optical concave-convex texture layer, and the sticking layer are respectively transparent or translucent, and the second protective layer is transparent or semitransparent or opaque. According to the optical concave-convex texture superimposed film according to claim 6, wherein the first protective layer, the first bottom layer, the second protective layer and the second bottom layer are respectively provided with an electroplating film or a first printed pattern or a decorative film. According to the optical concave-convex texture superimposed film according to claim 7, wherein the first optical concave-convex texture layer and/or the second optical concave-convex texture layer are respectively provided with second printing patterns. An optical concavo-convex texture superimposed film, comprising a third sheet, the third sheet comprising a first optical concavo-convex texture layer with random multi-directional refraction and a second optical concavo-convex texture layer with unidirectional condensing and amplifying in sequence.

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