Multi-layer engraving film

Abstract

The utility model provides a multi-layer engraving film, which relates to the technical field of engraving films, and includes a color base film layer, a first adhesive layer, a silicone coating, a transparent base film layer, a second adhesive layer and a PET release film layer stacked in sequence. The utility model provides a multi-layer engraving film, under the color base film layer for displaying target patterns and characters, a transparent base film layer that can be engraved in shape is provided, when waste is discharged, only the waste of the transparent base film layer needs to be removed, and the PET release film layer needs to be removed, and then the whole can be pasted, that is, the original shape, positional relationship and integrity of the original target pattern and characters are guaranteed, and the steps of transfer, transfer and hot stamping are omitted, even for complex pattern and characters, there is no need to use a carrier film or transfer film in conventional technology to achieve transfer, thus reducing material and labor costs, and the operation method is simple, which provides convenience for the posting and setting of the multi-layer engraving film for the target pattern and characters.

Description

Technical Field

[0001] The utility model relates to the technical field of engraving films, and more specifically to a multi-layer engraving film. Background Art

[0002] With the development of society and the gradual improvement of people's living standards, DIY creative handicrafts have become a new consumption mode. This kind of DIY creative handicrafts can effectively promote the coordination of people's hands, eyes and brains, and create works with aesthetic, cultural and economic value, which have unique charm and appeal compared with other commodities. In this context, engraving film (lettering film) came into being as a widely used tool.

[0003] At present, most of the engraving films on the market are single-layer engraving, which means that only simple text or pattern engraving can be achieved. For the needs of engraving complex patterns or text, traditional engraving films must use carrier films or transfer films to achieve transfer or hot stamping at the target position to ensure the integrity, fixation and non-deformation of the engraved text or image. This method has many inconveniences. The method of transferring and placing patterns is cumbersome and complicated to operate, which brings unnecessary troubles to users. At the same time, the engraving method that relies on transfer films or carrier films also increases costs and wastes materials, which is not in line with the concept of environmental protection.

[0004] In short, traditional engraving films are all single-layer engraving, which cannot meet the needs of users for engraving complex patterns. In order to ensure the original shape, this deficiency can only be compensated by introducing additional carrier films or transfer films. However, this method increases the complexity and cost of use, which not only brings extra trouble to users, but also does not conform to the concept of environmental protection. Therefore, there are many deficiencies in the engraving films currently on the market, and a new technology is needed to solve these problems. Utility Model Content

[0005] In order to solve the above defects, the utility model provides a multi-layer engraving film, comprising a color base film layer, a first adhesive layer, a silicone coating, a transparent base film layer, a second adhesive layer and a PET release film layer stacked in sequence.

[0006] Preferably, the edge of the color base film layer is provided with a first film cutting protrusion.

[0007] Preferably, a second film-cut protrusion is provided at the edge of the transparent base film layer.

[0008] Preferably, the second film cut protrusion is staggered with the first film cut protrusion at the edge of the color base film layer.

[0009] Preferably, an extension length of the second film-cut protruding end is greater than an extension length of the first film-cut protruding end.

[0010] Preferably, a line protrusion is provided on a surface of the PET release film layer on one side facing the second adhesive layer;

[0011] A venting groove corresponding to the shape of the line protrusion is provided on a surface of the second adhesive layer facing the PET release film layer.

[0012] Preferably, the line protrusions of the PET release film layer cross each other to form a protrusion grid matrix;

[0013] The protrusion grid matrix is ​​distributed over the entire area of ​​the surface of the PET release film layer on one side facing the adhesive layer.

[0014] Preferably, the line protrusions of the PET release film layer include a plurality of first protrusion strips and a plurality of second protrusion strips;

[0015] The first raised strip and the second raised strip are both straight lines, and both ends of the first raised strip and the second raised strip extend to the edge of the PET release film layer;

[0016] A plurality of the first protrusion strips are arranged in parallel;

[0017] A plurality of the second protrusion strips are arranged in parallel;

[0018] The first protrusion strips and the second protrusion strips intersect with each other to form the protrusion grid matrix.

[0019] Preferably, in the multi-layer engraved film, the thickness of the color base film layer ranges from 75 μm to 90 μm;

[0020] The thickness of the first adhesive layer is in the range of 15 μm to 20 μm;

[0021] The thickness of the transparent base film layer ranges from 40 μm to 60 μm;

[0022] The thickness of the second adhesive layer is in the range of 20 μm to 25 μm;

[0023] The thickness of the PET release film layer ranges from 100 μm to 200 μm.

[0024] Preferably, the coating amount of the silicone coating is 0.2 g / m 2 -0.4g / m 2 .

[0025] The utility model provides a multi-layer engraving film. It comprises: a color base film layer, a first adhesive layer, a silicone coating, a transparent base film layer, a second adhesive layer and a PET release film layer which are stacked in sequence. The utility model provides a multi-layer engraving film. Under the color base film layer for displaying target patterns and characters, a transparent base film layer which can be engraved in accordance with the shape is arranged. When discharging waste, it is only necessary to remove the waste of the transparent base film layer and the PET release film layer, and then paste the whole. This ensures the original shape, positional relationship and integrity of the original target patterns and characters, and eliminates the steps of transfer, transfer printing and hot stamping. Even for complex patterns and characters, it is not necessary to use a carrier film or a transfer film in conventional technology to achieve transfer, thereby reducing material and labor costs. The operation method is simple, and it provides convenience for the posting and setting of the multi-layer engraving film for the target patterns and characters. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the cross-sectional structure of the multi-layer engraving film of the utility model;

[0027] Figure 2 It is a schematic diagram of the top view of the structure of the multi-layer engraving film of the utility model after engraving is completed and waste is discharged;

[0028] Figure 3 It is a schematic diagram of the top view structure of the multi-layer engraving film of the utility model (including a visible color base film layer and a transparent base film layer);

[0029] Figure 4 It is a schematic diagram of the top view structure of the PET release film layer in the multi-layer engraving film of the utility model;

[0030] Figure 5 The schematic diagram is a positional relationship and structural diagram of the cross section of the PET release film layer and the second adhesive layer in the multi-layer engraving film of the utility model.

[0031] Reference numerals:

[0032] 100, multi-layer engraving film; 1, color base film layer; 11, first film cut protrusion; 2, first adhesive layer; 3, silicone coating; 4, transparent base film layer; 41, second film cut protrusion; 5, second adhesive layer; 51, exhaust groove; 6, PET release film layer; 61, line protrusion; 611, first protrusion strip; 612, second protrusion strip.

[0033] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0035] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0039] refer to Figure 1The utility model provides a multi-layer engraving film 100, comprising a color base film layer 1, a first adhesive layer 2, a silicone coating 3, a transparent base film layer 4, a second adhesive layer 5 and a PET release film layer 6 which are stacked in sequence.

[0040] In the multi-layer engraving film provided in the utility model, the different functional layers are as follows:

[0041] (1) Color base film layer 1, which can be made of PVC, PP, PET, TPU and other materials. This layer is used to display the pattern text. This layer is the main color layer of the lettering film, and as the background color of the text or pattern, it provides a visual display basis. The color base film layer 1 is made of substrate films with different colors or surface morphologies.

[0042] (2) The first adhesive layer 2, which may be a polyacrylic resin adhesive layer, is used to be attached to the transparent base film layer 4; it can be well combined with the transparent base film layer 4 through viscosity. The function of this layer is to fix the color base film layer 1 and ensure that it is firmly adhered to the transparent base film layer 4.

[0043] (3) The organic silicon coating 3 may be an organic silicon oil coating, which is used to make it easier to discharge waste (remove waste from the hollowed-out part and the outer edge of the color base film layer 1) after the color base film layer 1 is engraved. The organic silicon oil coating can reduce the resistance during the waste discharge process and improve work efficiency.

[0044] (4) Transparent base film layer 4, which can be transparent PET or other transparent materials such as transparent PVC, transparent PP, etc.; its function is to protect the color base film layer 1 from damage after the pattern or text is engraved on it, and to keep the original shape and position relationship on the transparent base film layer 4 unchanged, acting as a carrier film or transfer film, so that the lettering or pattern can be transferred and pasted as a whole after being produced on the color base film layer 1, and because of the transparent material itself, it will not affect the display effect of the image and text on the color base film layer 1.

[0045] (5) The second adhesive layer 5 is a polyacrylic resin adhesive layer, which has strong bonding strength and excellent weather resistance and can be well adhered to the object to be pasted. The function of the second adhesive layer 5 is to adhere the transparent film layer to the PET release film layer 6 together before pasting, and to be able to stick to the target position more stably during pasting.

[0046] (6) PET release film layer 6, which is used to make the lettering film easy to peel off after gluing.

[0047] The release film layer 6 can usually be made of the following materials:

[0048] PET (Polyethylene terephthalate): PET is a commonly used release film material with good transparency, mechanical properties and chemical stability. It is suitable for various printing, coating and lamination processes, and the price is relatively economical.

[0049] PE (Polyethylene): PE is another common release film material with high flexibility and wear resistance, suitable for some special process requirements, such as the production of flexible electronic products.

[0050] PP (polypropylene): PP is also a commonly used release film material with good high temperature resistance and chemical stability. It is suitable for some high temperature processing technologies such as hot pressing and thermal transfer.

[0051] PTFE (polytetrafluoroethylene): PTFE is a material that is very resistant to high temperatures and has stable chemical properties. It is suitable for some processes with special requirements, such as hot pressing and high-temperature bonding.

[0052] Silicone: Silicone is a soft, high temperature resistant and chemically stable material suitable for some processes that require high temperature gluing and high bonding strength.

[0053] Release Paper: In addition to the above materials, you can also use some special release papers, such as silicone oil coated release paper. This kind of paper has good separation performance and smoothness, and is suitable for some simple lamination and coating processes.

[0054] It should be noted that the conventional engraving film is a single layer (referring to the layer used to display the pattern and text), namely the release film layer 6 and the base film layer, and the pasting method thereof is generally as follows:

[0055] (1) Engraving: Engraving the base film layer to produce a pattern;

[0056] (2) Waste discharge: remove the waste from the base film layer;

[0057] (3) Transfer: Transfer the base film layer on the release film layer 6 to the transfer film;

[0058] (4) Pasting: Paste the transfer film on the target position, and then transfer the engraved base film layer on the transfer film to the target position.

[0059] Compared with conventional engraving films, the multi-layer engraving film 100 provided by the present invention is a multi-layer structure, and the pasting method thereof can be:

[0060] The cutting gear is set to two engraving forces, wherein the first engraving force is slightly smaller and can only cut through the color base film layer 1, and the second engraving force is slightly larger and can cut through the color base film layer 1 and the transparent base film layer 4 at the same time.

[0061] (1) Engraving: Engraving the base film layer to produce pattern text, while the transparent base film layer 4 only engraves the outer contour of the pattern;

[0062] (2) Waste removal: removing waste from the color base film layer 1 and the transparent base film layer 4;

[0063] (3) Posting: Peel off and discard the PET release film layer 6, and stick the remaining part directly to the target position in the form of a sticky note.

[0064] After completing the waste treatment in step (2), refer to Figure 2 , taking the shape of the pattern to be engraved as a circular ring as an example, we get Figure 2 In the state where the annular color base film layer 1 is attached to the transparent base film layer 4, the transparent base film layer 4 at the lower end can be seen in the hollow of the annular color base film layer 1. Then, the transparent base film layer 4 can be attached to the target position.

[0065] In summary, the utility model provides a multi-layer engraving film 100, under which a transparent base film layer 4 that can be engraved in the shape is arranged under a color base film layer 1 for displaying target patterns and texts. When discharging waste, it is only necessary to remove the waste of the transparent base film layer 4 and the PET release film layer 6, and then the whole can be pasted, thereby ensuring the original shape, positional relationship and integrity of the original target patterns and texts, and eliminating the steps of transferring, transferring and hot stamping. Even for complex patterns and texts, there is no need to use a carrier film or a transfer film in conventional technology to achieve transfer, thereby reducing material and labor costs, and the operation method is simple, which provides convenience for the posting and setting of the multi-layer engraving film 100 for target patterns and texts.

[0066] For further reference, Figure 3 The edge of the color base film layer 1 is provided with a first film cutting protrusion 11.

[0067] Furthermore, a second film-cut protruding end 41 is provided at the edge of the transparent base film layer 4 .

[0068] As mentioned above, the edge, that is, the outer edge, of the color base film layer 1 is provided with a first film cut protrusion 11. In addition, the inner hollow edge of the engraved pattern or text can also be provided with a tiny first film cut protrusion 11 during the engraving process.

[0069] As mentioned above, the first film cutting protrusions 11 can be arranged in a zigzag shape and distributed on the edge of the color base film layer 1, so as to facilitate the discharge of edge waste of the color base film layer 1 after engraving is completed.

[0070] As mentioned above, the edge of the transparent base film layer 4 is provided with a second film cutting protrusion 41, and the second film cutting protrusion 41 can be arranged in a zigzag shape and distributed on the edge of the color base film layer 1, so as to facilitate the edge waste of the transparent base film layer 4 to be peeled off and discharged after engraving is completed.

[0071] Furthermore, the second film cut protrusion 41 and the first film cut protrusion 11 at the edge of the color base film layer 1 are staggered.

[0072] As mentioned above, in order to further improve the convenience of waste disposal work and avoid the problem that the color base film layer 1 and the transparent base film layer 4 are close to each other, which causes difficulties in waste disposal work, in the utility model, the second film cut protrusion 41 and the first film cut protrusion 11 at the edge of the color base film layer 1 are staggered.

[0073] The staggered distribution of the first film cut protrusion 11 and the second film cut protrusion 41 set at the edges of the color base film layer 1 and the transparent base film layer 4 makes it easier to peel off the edges and discharge waste after the pattern and text are engraved, thus avoiding damage to the color base film layer 1 during the waste discharge process. Separate waste discharge ensures the integrity, accuracy and aesthetics of the engraving result and provides convenience.

[0074] Furthermore, an extension length of the second film-cutting protrusion 41 is greater than an extension length of the first film-cutting protrusion 11 .

[0075] As mentioned above, in order to further improve the convenience of waste disposal work and avoid the problem that the color base film layer 1 and the transparent base film layer 4 are close to each other, which causes difficulties in waste disposal work, in the utility model, the extension length of the second film cut protrusion 41 is greater than the extension length of the first film cut protrusion 11.

[0076] Specifically, the extended length is equivalent to its extended height. The extended length of the second film cut protrusion 41 is greater than the extended length of the first film cut protrusion 11, so that the second film cut protrusion 41 is longer than the first film cut protrusion 11. The two can be easily distinguished and discharged separately without affecting or overlapping each other, causing waste discharge errors.

[0077] For further reference, Figure 4 The surface of the PET release film layer 6 facing the second adhesive layer 5 is provided with a line protrusion 61;

[0078] A venting groove 51 corresponding to the shape of the linear protrusion 61 is formed on a surface of the second adhesive layer 5 facing the PET release film layer 6 .

[0079] It should be noted that when the multi-layer engraving film 100 provided in the utility model is pasted, the transparent base film layer 4 is facing the side of the PET release film layer 6. After the PET release film layer 6 is peeled off, the second adhesive layer 5 on the surface of the transparent base film layer 4 is displayed, and then the transparent base film layer 4 is pasted to the corresponding target position through the second adhesive layer 5.

[0080] At this time, if the surface of the transparent base film layer 4 is covered with a complete second adhesive layer 5, bubbles may be generated between the second adhesive and the target position during the pasting process. Due to the transparent nature of the transparent base film layer 4, the bubbles distributed inside the color base film layer 1 can be directly seen on the external surface, affecting the overall aesthetics and display effect.

[0081] In order to solve the above problems, in the utility model, reference Figure 5 The surface of the PET release film layer 6 is not arranged in a planar structure, but a linear protrusion 61 is provided on the side surface facing the second adhesive layer 5, and correspondingly, a venting groove 51 is provided on the side surface of the second adhesive layer 5 facing the PET release film layer 6.

[0082] Since the material of the second adhesive layer 5 itself is in an amorphous state during the preparation process, after coating, it will generate a corresponding shape according to the line protrusion 61 and produce a corresponding exhaust groove 51. Therefore, the exhaust groove 51 is corresponding to the shape of the line protrusion 61.

[0083] When pasting, if bubbles are generated at position A of the second adhesive layer 5, the bubbles at position A can be adjusted to the nearest exhaust groove 51, so that the bubbles can be discharged from the second adhesive layer 5 through the exhaust groove 51, thereby ensuring the overall aesthetics and display effect.

[0084] Furthermore, the line protrusions 61 of the PET release film layer 6 are intersected to form a protrusion grid matrix;

[0085] The protrusion grid matrix is ​​distributed over the entire area of ​​the surface of the PET release film layer 6 facing the adhesive layer.

[0086] As mentioned above, the linear protrusions 61 are cross-distributed to form a protrusion network matrix, and the protrusion grid matrix is ​​distributed in the entire area of ​​the surface of the PET release film layer 6 facing the adhesive layer. Correspondingly, the exhaust grooves 51 on the surface of the second adhesive layer 5 facing the PET release film layer 6 also form a grid matrix of grooves.

[0087] After posting, it is easier to exhaust the bubbles therein during exhaust, and the bubbles are distributed in the entire area, so that the bubbles can be more conveniently exhausted to the outside through the exhaust groove 51.

[0088] Furthermore, the line protrusions 61 of the PET release film layer 6 include a plurality of first protrusion strips 611 and a plurality of second protrusion strips 612;

[0089] The first raised strip 611 and the second raised strip 612 are both straight lines, and both ends of the first raised strip 611 and the second raised strip 612 extend to the edge of the PET release film layer 6;

[0090] A plurality of the first protruding strips 611 are arranged in parallel;

[0091] A plurality of the second protrusion strips 612 are arranged in parallel;

[0092] The first protrusion strips 611 and the second protrusion strips 612 intersect with each other to form the protrusion grid matrix.

[0093] As described above, the first protruding strip 611 and the plurality of second protruding strips 612 intersect with each other, and the intersection angle may be any angle.

[0094] As described above, the first protrusion strip 611 and the plurality of second protrusion strips 612 intersect and form a protrusion grid matrix, which further facilitates the discharge of the generated bubbles.

[0095] Further, in the multi-layer engraved film 100, the thickness of the color base film layer 1 ranges from 75 μm to 90 μm;

[0096] The thickness of the first adhesive layer 2 is in the range of 15 μm to 20 μm;

[0097] The thickness of the transparent base film layer 4 is in the range of 40 μm to 60 μm;

[0098] The thickness of the second adhesive layer 5 is in the range of 20 μm to 25 μm;

[0099] The thickness of the PET release film layer 6 is in the range of 100 μm to 200 μm.

[0100] Furthermore, the coating amount of the organic silicon coating 3 is 0.2 g / m 2 -0.4g / m 2 .

[0101] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art may make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the definition of the claims.

Claims

1. A multi-layer engraved film, characterized in that: It includes a color base film layer, a first adhesive layer, a silicone coating, a transparent base film layer, a second adhesive layer and a PET release film layer which are stacked in sequence.

2. The multi-layer engraved film according to claim 1, characterized in that: The edge of the color base film layer is provided with a first film cutting protrusion.

3. The multi-layer engraved film according to claim 2, characterized in that: The edge of the transparent base film layer is provided with a second film cutting protrusion.

4. The multi-layer engraved film according to claim 3, characterized in that: The second film cut protrusion is staggered with the first film cut protrusion at the edge of the color base film layer.

5. The multi-layer engraved film according to claim 3, characterized in that: An extension length of the second film-cut protruding end is greater than an extension length of the first film-cut protruding end.

6. The multi-layer engraved film according to claim 1, characterized in that: A line protrusion is provided on a surface of the PET release film layer facing the second adhesive layer; A venting groove corresponding to the shape of the line protrusion is provided on a surface of the second adhesive layer facing the PET release film layer.

7. The multi-layer engraved film according to claim 6, characterized in that: The line protrusions of the PET release film layer intersect to form a protrusion grid matrix; The protrusion grid matrix is ​​distributed over the entire area of ​​the surface of the PET release film layer on one side facing the adhesive layer.

8. The multi-layer engraved film according to claim 7, characterized in that: The line protrusions of the PET release film layer include a plurality of first protrusion strips and a plurality of second protrusion strips; The first raised strip and the second raised strip are both straight lines, and both ends of the first raised strip and the second raised strip extend to the edge of the PET release film layer; A plurality of the first protrusion strips are arranged in parallel; A plurality of the second protrusion strips are arranged in parallel; The first protrusion strips and the second protrusion strips intersect with each other to form the protrusion grid matrix.

9. The multi-layer engraved film according to claim 1, characterized in that: In the multi-layer engraved film, the thickness of the color base film layer ranges from 75 μm to 90 μm; The thickness of the first adhesive layer is in the range of 15 μm to 20 μm; The thickness of the transparent base film layer ranges from 40 μm to 60 μm; The thickness of the second adhesive layer is in the range of 20 μm to 25 μm; The thickness of the PET release film layer ranges from 100 μm to 200 μm.

10. The multi-layer engraved film according to claim 1, characterized in that: The coating amount of the silicone coating is 0.2 g / m 2 -0.4g / m 2 .

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