A transfer film with metallic effect
By setting a protective layer and a waterproof and oil-proof layer in the transfer film, the problem of easy wear and tear on holographic patterns is solved, and the aesthetics and durability of the patterns are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HONGYE PACKAGING MATERIALS CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-17
AI Technical Summary
The holographic patterns on existing transfer films are easily worn away when in contact with the metallic ink layer, resulting in blurred patterns that affect aesthetics and lifespan.
Design a transfer film with a metallic effect, including setting a transparent protective layer three connecting a metallic luster ink layer and a holographic pattern, using a transparent silica film as the first and second protective layers, combined with a waterproof and oil-proof layer to protect the holographic pattern from friction and liquid erosion.
It enhances the aesthetics of holographic patterns, reduces wear and tear, extends service life, prevents water and oil from entering gaps and damaging the patterns, and maintains the clarity and integrity of the patterns.
Smart Images
Figure CN224510706U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transfer film technology, and in particular to a transfer film with a metallic effect. Background Technology
[0002] Transfer film is a medium material that transfers patterns and functional layers to the surface of a target substrate through physical or chemical means, and is widely used in packaging, electronics, building materials, and other fields. An existing patent (publication number: CN217435356U) discloses a holographic positioning metallic luster heat transfer film. This invention enhances the three-dimensional effect of the transfer film pattern by setting a varnish layer, a metallic luster ink layer, and a holographic pattern, achieving a durable metallic luster. However, in practical applications, because the holographic pattern is in direct contact with the metallic ink layer, long-term use may cause the pattern to blur due to friction or oxidation, which is detrimental to practical applications. Therefore, we propose a transfer film with a metallic effect. Utility Model Content
[0003] To address the aforementioned problems, this invention provides a transfer film with a metallic effect.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] Design a transfer film with a metallic effect, including a transfer structure disposed on a base film. The transfer structure includes a metallic luster ink layer and a varnish layer stacked together. A holographic pattern is provided on the varnish layer. A transparent protective layer three is connected between the holographic pattern and the metallic luster ink layer. The protective layer three includes a scratch-resistant film.
[0006] In the above scheme, a release layer 1 is covered between the top of the base film and the varnish layer, and a tear strip 2 is provided at the end of the release layer 1.
[0007] In the above scheme, a color printing ink layer is provided above the metallic luster ink layer, and an adhesive layer is covered on top of the color printing ink layer.
[0008] In the above scheme, the holographic pattern includes an embedded groove formed on the varnish layer, and a nanograting structure is embedded in the embedded groove.
[0009] In the above scheme, the anti-scratching film is configured as two layers and is respectively bonded to the nano-grating structure and the metallic luster ink layer, and a waterproof and oil-proof layer is connected between adjacent anti-scratching films.
[0010] In the above scheme, the top of the adhesive layer is covered with a second release layer, and the end of the second release layer is connected to a first tear strip.
[0011] In the above scheme, a protective layer one is connected between the inner wall of the embedded groove and the nano grating structure, and a protective layer two is covered on the outside of the metallic ink layer. The protective layer one, the protective layer two and the anti-scratch film are all transparent silicon dioxide films.
[0012] The advantages and beneficial effects of this utility model are as follows: By setting a metallic luster ink layer, a varnish layer, a holographic pattern, and a protective layer, and by placing the side closest to the metallic luster ink layer downwards so that the varnish layer and the holographic pattern face upwards, the holographic pattern gains a metallic luster, improving its aesthetic appeal. Compared to existing technologies, the use of an anti-scratch film reduces wear caused by friction between the holographic pattern and the metallic luster ink layer and the varnish layer, protecting the integrity of the holographic pattern, keeping it clear, and extending its service life. By setting a first protective layer, a second protective layer, an anti-scratch film, and a waterproof and oil-proof layer, and by setting the first protective layer, the second protective layer, and the anti-scratch film as transparent silica films, both waterproof, scratch-resistant, and wear-resistant effects are achieved, while also avoiding interference with the display of the holographic pattern. Compared to existing technologies, the use of a waterproof and oil-proof layer prevents water and oil from entering the gap between the varnish layer and the metallic luster ink layer, avoiding damage to the holographic image and achieving a protective effect. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the structure of a transfer film with a metallic effect proposed in this utility model;
[0015] Figure 2 This is a partial side cross-sectional view of a transfer film with a metallic effect proposed in this utility model;
[0016] Figure 3 This is a top cross-sectional view of a transfer film with a metallic effect proposed in this utility model;
[0017] Figure 4 This is a schematic diagram of the structure of the protective layer three of the transfer film with metallic effect proposed in this utility model.
[0018] In the diagram: 1. Base film, 2. Release layer 1, 3. Transfer structure, 3. Varnish layer, 31. Embedded groove, 32. Nano grating structure, 33. Protective layer 1, 34. Color printing ink layer, 35. Metallic luster ink layer, 36. Protective layer 2, 37. Protective layer 3, 38. Anti-scratch film, 381. Waterproof and oil-proof layer, 382. Adhesive layer, 39. Release layer 2, 4. Tear strip 1, 5. Tear strip 2, 6. Detailed Implementation
[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.
[0020] Please see Figure 1-4 This utility model provides a technical solution: a transfer film with a metallic effect, including a transfer structure 3 disposed on a base film 1. The base film 1 is subjected to plasma treatment to enhance adhesion and effectively reduce peeling.
[0021] Furthermore, a release layer 2 is provided between the top of the base film 1 and the varnish layer 31, and a tear strip 6 is provided at the end of the release layer 2; the tear strip 6, which is longer than the release layer 2, makes it convenient for the user to tear off the release layer 2.
[0022] The transfer structure 3 includes a metallic ink layer 36 and a varnish layer 31 stacked together;
[0023] Specifically, the metallic ink layer 36 uses small-diameter aluminum oxide or copper oxide composite particles, which are dispersed in the UV ink through a sol-gel method. Compared with the two-dimensional sheet aluminum particle laying technology, this improves uniformity and reflectivity.
[0024] Furthermore, a color printing ink layer 35 is provided above the metallic ink layer 36. The color printing ink layer 35 enriches the colors of the holographic pattern described below. The top of the color printing ink layer 35 is covered with an adhesive layer 39.
[0025] Specifically, the adhesive layer 39 uses oxobutane-modified polyurethane to improve peel strength and prevent peeling. In addition, a fluorosilane coupling agent transition layer can be added between the metallic ink layer 36 and the color printing ink layer 35. The fluorosilane coupling agent transition layer is located on the connection surface on both sides of the metallic ink layer 36 and the color printing ink layer 35 to prevent solvent penetration that leads to gloss decay.
[0026] Furthermore, the top of the adhesive layer 39 is covered with a release layer 2 4, and the end of the release layer 2 4 is connected to a tear strip 1 5; the tear strip 1 5, which is longer than the release layer 2 4, makes it convenient for the user to tear off the release layer 2 4.
[0027] Specifically, release layer 4 can be used to protect the color printing ink layer 35, preventing it from being worn before transfer and protecting the integrity of the color printing ink layer 35.
[0028] A holographic pattern is provided on the varnish layer 31;
[0029] Furthermore, the holographic pattern includes an embedded groove 32 formed on the varnish layer 31, and a nano-grating structure 33 is embedded in the embedded groove 32. The nano-grating structure 33 is laser-engraved.
[0030] A transparent protective layer 38 is connected between the holographic pattern and the metallic ink layer 36. The protective layer 38 includes a scratch-resistant film 381.
[0031] Specifically, by setting a metallic ink layer 36, a varnish layer 31, a holographic pattern, and a protective layer 38, and by placing the side closest to the metallic ink layer 36 downwards, with the varnish layer 31 and the holographic pattern facing upwards, the holographic pattern gains a metallic luster, improving its aesthetic appeal. Compared to existing technologies, the anti-scratch film 381 reduces wear caused by friction between the holographic pattern and the metallic ink layer 36 and the varnish layer 31, protecting the integrity of the holographic pattern, keeping it clear, and extending its service life.
[0032] Furthermore, the anti-damage film 381 is configured as two layers and is respectively bonded to the nano-grating structure 33 and the metallic luster ink layer 36. A waterproof and oil-proof layer 382 is connected between adjacent anti-damage films 381. The waterproof and oil-proof layer 382 can be set as a fluorosilane coupling agent to achieve the effect of hydrophobicity and oleophobicity, effectively preventing the holographic pattern from being damaged by water and oil. The fluorosilane coupling agent is transparent.
[0033] Furthermore, a protective layer 34 is connected between the inner wall of the embedded groove 32 and the nano-grating structure 33, and a protective layer 37 is covered on the outside of the metallic ink layer 36. The protective layer 34, the protective layer 37 and the anti-scratch film 381 are all transparent silicon dioxide films.
[0034] Specifically, by setting up a protective layer 34, a protective layer 37, a scratch-resistant film 381, and a waterproof and oil-resistant layer 382, and by setting the protective layer 34, the protective layer 37, and the scratch-resistant film 381 as transparent silica films, it can achieve waterproof, scratch-resistant, and wear-resistant effects, and also avoids hindering the display of the holographic pattern. Compared with the existing technology, the waterproof and oil-resistant layer 382 prevents water and oil from entering the gap between the varnish layer 31 and the metallic ink layer 36, thus avoiding damage to the holographic image and achieving a protective effect.
[0035] Working principle:
[0036] First, peel off the release layer 2 4. Then, use the adhesive layer 39 to stick it to the surface to be decorated, with the release layer 1 2 facing upwards. Press the release layer 1 2 downwards firmly, and then peel off the release layer 1 2 to fully expose the holographic pattern, thus completing the decoration.
[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A transfer film with a metallic effect, comprising a transfer structure (3) disposed on a base film (1), characterized in that, The transfer structure (3) includes a metallic luster ink layer (36) and a varnish layer (31) stacked together. The varnish layer (31) has a holographic pattern. A transparent protective layer three (38) is connected between the holographic pattern and the metallic luster ink layer (36). The protective layer three (38) includes a scratch-resistant film (381).
2. The metallic effect transfer film according to claim 1, wherein A release layer (2) is provided between the top of the base film (1) and the varnish layer (31), and a tear strip (6) is provided at the end of the release layer (2).
3. The metallic effect transfer film according to claim 1, wherein A color printing ink layer (35) is provided above the metallic ink layer (36), and an adhesive layer (39) is covered on top of the color printing ink layer (35).
4. The metallic effect transfer film according to claim 1, wherein The holographic pattern includes an embedded groove (32) formed on the varnish layer (31), and a nanograting structure (33) is embedded in the embedded groove (32).
5. The metallic effect transfer film according to claim 4, wherein the metallic effect transfer film is characterized by The anti-damage film (381) is configured as two layers and is respectively bonded to the nano grating structure (33) and the metallic luster ink layer (36), and a waterproof and oil-proof layer (382) is connected between adjacent anti-damage films (381).
6. The metallic effect transfer film according to claim 3, wherein The top of the adhesive layer (39) is covered with a release layer two (4), and the end of the release layer two (4) is connected to a tear strip one (5).
7. The metallic effect transfer film according to claim 5, wherein A protective layer 1 (34) is connected between the inner wall of the embedded groove (32) and the nano grating structure (33), and a protective layer 2 (37) covers the outer side of the metallic ink layer (36). The protective layer 1 (34), the protective layer 2 (37) and the anti-scratching film (381) are all transparent silicon dioxide films.