WO2022007087A1

WO2022007087A1 - Optical concave-convex pattern overlay film

Info

Publication number: WO2022007087A1
Application number: PCT/CN2020/107604
Authority: WO
Inventors: 温国梁
Original assignee: 温国梁
Priority date: 2020-07-07
Filing date: 2020-08-07
Publication date: 2022-01-13
Also published as: TWI789605B; TW202202875A

Abstract

An optical concave-convex pattern overlay film, comprising a first sheet (1) and at least one second sheet (2), the first sheet (1) being affixed atop the second sheet (2). The first sheet (1) comprises a first optical concave-convex pattern layer (12) refracting irregularly in multiple directions. The second sheet (2) comprises a second optical concave-convex pattern layer (22) condensing light and magnifying in one direction. With the overlay of the first sheet (1) and the second sheet (2), the first sheet (1) is capable of changing the direction of reflection of the second sheet (2), thus preventing a product on which the optical concave-convex pattern overlay film is printed from causing dizziness and glare when viewed, allowing a softened visual effect, and increasing a stereoscopic effect. The first sheet (1) and the second sheet (2) can be assembled in a variety of combinations, are applicable in the fields of printing, packaging, and artificial leathers, have a wide range of applications, and are applicable in the field of optical films.

Description

Optical bump texture overlay film

technical field

The utility model relates to the technical field of optical films, in particular to an optical concave-convex pattern superimposed film.

Background technique

Existing flat prints include two-dimensional images and three-dimensional images. The two-dimensional image prints are relatively mature, but the two-dimensional image prints are limited to two-dimensional effects. Therefore, the image effects of the two-dimensional image prints have certain limitations. The existing three-dimensional image prints generally use a concave-convex film to produce a three-dimensional effect, and the resulting visual effect is also unsatisfactory, giving people a feeling of dazzling, soft and dizzy.

Utility model content

(1) Technical problems to be solved

An optical concave-convex pattern superimposed film can improve the stereoscopic visual effect of a printed product, and has a softer visual effect than traditional three-dimensional image prints, and has various combinations and wide application scenarios.

(2) Technical solutions

In order to solve the above technical problems, the present invention provides an optical concave-convex pattern superimposed film, which includes a first sheet and at least a second sheet, the first sheet is attached to the top of the second sheet ; The first sheet material includes a first optical concave-convex textured layer with random multi-directional refraction, and the second sheet material includes a unidirectional light-gathering magnification second optical concave-convex textured layer.

In 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 by the adhesive layer.

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

Further improved, the first sheet has a first shape, and the second sheet has a second shape.

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

In a further improvement, the second optical concave-convex textured layer is a Fresnel lens.

In a further improvement, the first sheet material further includes a first protective layer and a first bottom layer, the first protective layer, the first optical concave-convex pattern layer, and the first bottom layer are arranged in order 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 material further comprises a second protective layer, a second bottom layer and an attaching layer, the second protective layer, the second optical concave-convex pattern layer, the second bottom layer, and the attaching layer are arranged in order 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 protective layer is transparent or translucent or opaque.

In 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 printing pattern or a decorative film.

In 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 utility model also provides a second type of optical concave-convex texture superimposed film, and the technical scheme adopted is as follows:

An optical concave-convex pattern superimposed film comprises a third sheet material, wherein the third sheet material comprises a first optical concave-convex pattern layer with random multi-directional refraction and a second optical concave-convex pattern layer with unidirectional light-gathering magnification stacked in sequence.

(3) Beneficial effects

The first optical concave-convex pattern layer in the first sheet of the present invention has fine and irregular concave-convex patterns, which can scatter the transmitted light in multiple directions to produce the effect of random multi-direction refraction. The concave-convex pattern of the second optical concave-convex pattern layer in the second sheet is different from that of the first optical concave-convex pattern layer. The light refracted by the optical concave-convex pattern layer only diverges in a single direction, and the second optical concave-convex pattern layer in the second sheet has the function of amplifying and concentrating light. Through the superposition of the first sheet and the second sheet, a brilliant and three-dimensional visual effect can be produced.

Both the first sheet and the second sheet can be made of transparent or translucent films, and they can be combined with each other in use to achieve visual effects of 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 semi-transparent first sheet and a semi-transparent second sheet.

At the same time, because the second optical concave-convex pattern layer of the second sheet is unidirectional refracting, when multiple sheets are stacked, different second optical concave-convex pattern layers can have the same or different preset refraction angles, so that the printed product has the same or different preset refraction angles. Different angles produce different stereoscopic senses, which greatly enriches the packaging visual effects of printed products.

The second type of optical concave-convex pattern superimposed film disclosed in the utility model not only has the main advantages of the first optical concave-convex pattern superimposed film, but also can save the number of sheets and raw materials compared with the first optical concave-convex pattern 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 concavo-convex pattern superimposed film has more second sheets than the second optical concavo-convex pattern superimposed film, so the first optical concavo-convex pattern superimposed film has more combinations.

Description of drawings

1 is a schematic structural diagram of an optical concave-convex pattern superimposed film according to an embodiment of the present invention;

2 is a schematic structural diagram of a second optical concave-convex textured layer according to an embodiment of the present invention;

FIG. 3 is a diagram showing the connection relationship between the optical concave-convex pattern superimposed film and the article according to an embodiment of the present invention.

detailed description

The specific embodiments of the present utility model will be described in further detail below with reference to 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", "horizontal", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by vertical, horizontal, top, bottom, inside, and outside are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and The description is simplified rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection, or indirect connection through an intermediate medium, or internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Please refer to FIG. 1 to FIG. 3 , an optical concave-convex pattern superimposed film includes a first sheet 1 and at least a second sheet 2 , the first sheet 1 is attached to the second sheet 2 Above; the first sheet 1 includes a first optical concave-convex textured layer 12 refracted in random multi-directions, and the second sheet 2 includes a unidirectional light-gathering second optical concave-convex textured layer 22 .

The imaging effect principle of the optical concavo-convex pattern superimposed film of this embodiment is as follows: the light transmitted by the first optical concavo-convex pattern 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, diverges in multiple directions. The second optical concave-convex pattern layer 22 in the second sheet 2 has the effect of unidirectional light-gathering and magnification, and the light refracted by the second optical concave-convex pattern layer 22 in the second sheet 2 will only diverge in one direction, and the second The second optical concave-convex textured layer 22 in the sheet 2 has the function of amplifying and concentrating light. Through the superposition of the first sheet 1 and the second sheet 2, a brilliant and three-dimensional visual effect can be produced. 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 1 is a transparent first sheet 1 and a transparent second sheet 2; combination Mode 2 is transparent first sheet 1 and translucent second sheet 2; combination mode 3 is translucent first sheet 1 and transparent second sheet 2; combination mode 4 is translucent first sheet Sheet 1 and a translucent second sheet 2. The number of the first sheet 1 is one, if the number of the first sheet 1 is too large, it may block the light; because the second optical concave-convex texture layer 22 of the second sheet 2 is unidirectional refraction, the use of multiple It is not easy to block the light when the second sheet 2 is used, so the number of the second sheets 2 can be multiple. When multiple second sheets 2 are used, the types of the second sheets 2 can be the same or different, that is, different The second optical concave-convex textured layers 22 of the two sheets 2 have the same or different preset refraction angles. As long as each second sheet material 2 has the effect of amplifying the light condensing, it is sufficient. The preset refraction angle refers to the included angle between the input light and the output light when passing through the second sheet 2 . Moreover, different numbers or types of second sheets 2 and a first sheet 1 are used to produce different visual effects. A more preferred solution is that, in general, the number of the second sheet 2 can be one.

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 At the same time, the first sheet 1 and the second sheet 2 can be combined in various forms, which can be applied to fields such as printing, packaging, artificial leather, etc., and have a wide range of applications.

In this embodiment, as a further improvement of the above technical solution, a transparent adhesive layer 3 is further 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 function 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 freely combined, for example, the first shape is a rectangle, and the second shape is a pentagon or a five-pointed star or a circle, and the size of the pentagon, the five-pointed star or the circle is much smaller than that of the rectangle. A plurality of pentagonal or five-pointed star second sheets 2 are attached to the first sheet 1 at the same time, and each second sheet 2 can be arranged in various arrangements, thereby increasing the visual effect.

In this embodiment, as a further improvement of the above technical solution, rainbow paper is also attached to the first sheet 1. By adding rainbow paper, another visual effect can be formed, so that the visual effect of the optical concave-convex texture superimposed film can be improved. more diverse. The rainbow paper can be provided 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 textured 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 protective layer 11 , the A bottom layer 13 is sequentially attached and arranged 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 pattern layer 12, and at the same time, on the first protective layer 11 and/or the first bottom layer 13 A plating film or a first printing pattern or a decorative film can be provided respectively, and the first printing pattern can be a single color or a mixed color or pattern. The first protective layer 11 , the first optical concave-convex textured layer 12 and the first bottom layer 13 are respectively transparent or translucent. Whether the first protective layer 11 , the first optical textured layer 12 and the first bottom layer 13 are transparent or translucent is controlled by an additional process. If the first protective layer 11 , the first optical textured layer 12 and the first bottom layer 13 are not used The electroplating film or the first printing pattern or adding a decorative film is transparent; if the first protective layer 11, the first optical concave-convex texture layer 12, and the first bottom layer 13 use electroplating film or the first printing pattern or adding a decorative film, etc. , 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 further includes a second protective layer 21, a second bottom layer 23 and an attaching layer 24, the second protective layer 21, the second optical concave-convex texture layer 22, the second bottom layer 23, and the attaching layer 24 from the top Fit the settings down to the bottom. The second protective layer 21 and the second bottom layer 23 have a protective effect on the second optical concave-convex texture layer 22, and at the same time, the second protective layer 21 and/or the second bottom layer 23 can be respectively provided with a plating film or a first printed pattern or added decoration Film, the first printed pattern can be a single color or a mixture of colors or patterns. The first protective layer 11 , the first bottom layer 13 , the second protective layer 21 and the second bottom layer 23 will not affect each other by using electroplating film or the first printing pattern or adding a decorative film as decoration. 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 film or first printing pattern or adding decorative film as decoration, and can realize the combination of various colors, patterns and electroplating films. Of course, one or more of the protective layer 11 , the first bottom layer 13 , the second protective layer 21 and the second bottom layer 23 may also not use a plating film or a first printing pattern or add a decorative film as decoration. The optical concave-convex texture superimposed film can be attached to the article 4 through the attachment layer 24, and the article 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 translucent or opaque. When the second protective layer 21 is solid color, it is opaque. The transparent or translucent principle of the second optical concavo-convex textured layer 22 , the second bottom layer 23 and the attachment layer 24 is the same as the transparent or opaque principle of the first protective layer 11 , the first optical concave-convex textured 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 concavo-convex texture layer 12 and the second optical concave-convex texture layer 22 may not be provided with the second printing pattern, and can be freely combined. Specifically, the adhesive layer is located between the first bottom layer 13 and the second protective layer 21 .

An optical concave-convex pattern superimposed film, comprising a third sheet material, the third sheet material comprises a first optical concave-convex pattern layer 12 with random multi-directional refraction and a second optical concave-convex pattern layer 12 that is unidirectionally focused and amplified. twenty two. The first optical concave-convex textured layer 12 and the second optical concave-convex textured layer 22 of the third sheet can be directly laminated and stacked, and a certain side is used as the front side according to needs. The third sheet may also comprise a transparent glue layer 3 . Disposing the first optical concavo-convex texture layer 12 and the second optical concave-convex texture layer 22 on both sides of the adhesive layer 3 can reduce the material. The third sheet may 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 22 , and the function and material of the third bottom layer are the same as those of the first bottom layer 13 . The second bottom layer 23 is the same; the main difference between the second optical concave-convex pattern superimposed film and the first optical concave-convex pattern superimposed film lies in the number of sheets. The second optical concavo-convex texture superimposed film can also have rainbow paper, a first printing pattern, a second printing pattern, etc. in the first optical concave-convex texture superimposing film; the first optical concavo-convex texture layer 12 and the second optical concave-convex layer 12 can also be combined. The texture layer 22 is set to be transparent or opaque, which will not be repeated here. Compared with the first optical concave-convex pattern superimposed film, the second optical concave-convex pattern superimposed film has a simpler structure, fewer processing steps, and is more economical.

The above are only the preferred embodiments of the present utility model. It should be pointed out that for those skilled in the art, without departing from the technical principles of the present utility model, several improvements and modifications can be made. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

An optical concave-convex pattern superimposed film, characterized in that it comprises a first sheet and at least a second sheet, the first sheet is attached above the second sheet; the first sheet The first optical concave-convex textured layer with random multi-directional refraction is included, and the second sheet material includes the second optical concave-convex textured layer with unidirectional light-gathering magnification.
The optical concave-convex pattern superimposed film according to claim 1, wherein a transparent adhesive layer is further provided between the first sheet and the second sheet, and the first sheet and the second sheet pass through Glue layers are attached.
The optically concave-convex textured superimposed film according to claim 1, wherein when the number of the second sheets is multiple, the second optical textured layers of different second sheets have the same or different preset refractions angle.
The optically concave-convex textured superimposed film of claim 1, wherein the first sheet has a first shape, and the second sheet has a second shape.
The optically concave-convex pattern superimposed film according to claim 1, wherein rainbow paper is further pasted on the first sheet.
The optical concave-convex textured superimposed film according to claim 1, wherein the second optical concave-convex textured layer is a Fresnel lens.
The optically concave-convex textured superimposed film according to any one of claims 1 to 6, wherein the first sheet further comprises a first protective layer and a first bottom layer, the first protective layer, the first optical concavo-convex The textured layer and the first bottom layer are sequentially attached and arranged from top to bottom; the first protective layer, the first optical concave-convex textured layer, and the first bottom layer are respectively transparent or translucent;

The second sheet material further comprises a second protective layer, a second bottom layer and an attaching layer, the second protective layer, the second optical concave-convex pattern layer, the second bottom layer, and the attaching layer are arranged in order 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 protective layer is transparent or translucent or opaque.
The optical concave-convex pattern superimposed film according to claim 7, wherein the first protective layer, the first bottom layer, the second protective layer and the second bottom layer are respectively provided with a plating film, a first printing pattern or a decorative film .
The optical concavo-convex textured superimposed film according to claim 8, wherein the first optical concavo-convex texture layer and/or the second optical concave-convex texture layer are respectively provided with second printing patterns.
An optical concave-convex pattern superimposed film, characterized in that it comprises a third sheet material, the third sheet material comprises a first optical concave-convex pattern layer with random multi-directional refraction and a second optical concave-convex pattern layer that is unidirectionally condensed and amplified in sequence. Bump texture layer.