Composite gilding film for packaging
By setting the support layer with protrusions and force grooves between the base film layer and the bonding layer, the problem of the hot stamping film being difficult to peel off after being rolled up is solved, achieving the effect of easy and labor-saving operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAOXING NENGFA PACKAGING MATERIALS CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-06-23
AI Technical Summary
Existing hot stamping film for packaging adheres tightly to the surface after being rolled up, making it difficult to peel off the outermost end and resulting in a difficult peeling operation.
A support layer is provided between the base film layer and the bonding layer. The support layer consists of several support strips. Each support strip contains an elastic block, forming a raised strip and a force groove. The raised strip abuts against the inner hot stamping film, and the force groove provides an insertion point for easy peeling.
The design of the support layer prevents the hot stamping film from completely adhering during winding, providing an operating point for inserting the force application groove, simplifying the peeling process, and improving ease of use and flatness.
Smart Images

Figure CN224392113U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hot stamping film technology, specifically a composite hot stamping film for packaging. Background Technology
[0002] Hot stamping foil, also known as electroplated aluminum foil, is a hot stamping material made by coating a thin film substrate and then vacuum-depositing a layer of metal foil. Hot stamping foil has excellent colored platinum embossed effect and superior wear resistance, and is therefore widely used in the packaging industry.
[0003] Currently, existing hot stamping film for packaging is usually in roll form for easy storage. When hot stamping film is needed for packaging, the outermost end of the roll can be peeled off, the film can be cut to the required length, and the cut film can be used for packaging. However, hot stamping film is extremely thin and has a smooth surface. Therefore, after rolling, its surface will be tightly adhered without gaps. When it is necessary to cut the hot stamping film, it is difficult to peel off the outermost end of the roll, making the operation of peeling off the hot stamping film more troublesome and the effect of use unsatisfactory. Utility Model Content
[0004] The purpose of this utility model is to provide a composite hot stamping film for packaging in order to solve the above-mentioned problems.
[0005] This utility model achieves the above-mentioned objective through the following technical solution: a composite hot stamping film for packaging, comprising a base film layer, an adhesive layer disposed on the lower surface of the base film layer, a support layer disposed between the base film layer and the adhesive layer, the support layer comprising a plurality of support strips, the support strips comprising a plurality of elastic blocks, the elastic blocks having resilience, the plurality of support strips being bonded between the base film layer and the adhesive layer and forming a plurality of protrusions on the surface of the adhesive layer, and a force-applying groove being formed between adjacent protrusions.
[0006] As a further feature of this invention, cavities are formed inside the elastic block along its length.
[0007] As a further feature of this invention, the elastic block is made of rubber material.
[0008] As a further feature of this invention, the base film layer includes a first surface layer and a second surface layer, both of which are made of PE material.
[0009] As a further feature of this invention, a reinforcing layer is provided between the first surface layer and the second surface layer, and the reinforcing layer is made of TPU material.
[0010] As a further feature of this invention, the upper surface of the base film layer is provided with an anti-scratch coating.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] When the hot stamping film is rolled up, the raised strips on the outer hot stamping film will come into contact with the base film layer on the inner hot stamping film. Since a force-applying groove is formed between adjacent raised strips, and the elastic support of the support strip allows the force-applying groove to maintain its shape when the hot stamping film is rolled up, it can prevent the inner and outer hot stamping films from completely sticking together. When it is necessary to peel off the hot stamping film, you can insert your finger into the force-applying groove to apply force. Due to the existence of the force-applying groove, a force point can be provided for peeling off the outermost end of the film roll, making the operation easier and less strenuous, and the effect is better. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;
[0014] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;
[0015] Figure 3 This is a schematic diagram of the structure of the base film layer in this utility model.
[0016] Reference numerals: 1. Base film layer; 2. Adhesive layer; 3. Support strip; 4. Elastic block; 5. Raised strip; 6. Force groove; 7. Cavity; 8. First surface layer; 9. Second surface layer; 10. Reinforcing layer; 11. Anti-scratch coating. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Please see Figure 1 , Figure 2As shown, a composite hot stamping film for packaging includes a base film layer 1. An anti-scratch coating 11 is provided on the upper surface of the base film layer 1 to prevent scratches and improve the durability of the hot stamping film. An adhesive layer 2 is provided on the lower surface of the base film layer 1, and a support layer is provided between the base film layer 1 and the adhesive layer 2. The support layer includes several support strips 3, each support strip 3 including several elastic blocks 4, and the elastic blocks 4 have resilience. The support strips 3 are bonded between the base film layer 1 and the adhesive layer 2, and several protrusions 5 are formed on the surface of the adhesive layer 2. A force-applying groove 6 is formed between adjacent protrusions 5. When the hot stamping film is rolled up, the protrusions 5 on the outer hot stamping film will interact with the base film layer on the inner hot stamping film. 1. The friction occurs because a force groove 6 is formed between adjacent protrusions 5, and the elastic support of the support strip 3 allows the force groove 6 to maintain its shape when the hot stamping film is rolled up, thus preventing the inner and outer layers of hot stamping film from completely adhering. When it is necessary to peel off the hot stamping film, you can insert your finger into the force groove 6 to apply force. Due to the presence of the force groove 6, a force point can be provided for peeling off the outermost end of the film roll, making the operation easier and less strenuous, and the effect is better. Among them, due to the presence of the elastic block 4, it can both maintain the shape of the protrusions 5 and the force groove 6 and prevent the hot stamping film from wrinkling, keeping the hot stamping film flat and improving the effect of the hot stamping film.
[0019] Please see Figure 1 , Figure 2 As shown, cavities 7 are provided along the length of the elastic block 4. The opening of the cavities 7 makes it easier for the elastic block 4 to deform under force, which makes the hot stamping film more elastic and less prone to wrinkling. In addition, the elastic block 4 is made of rubber material, which has good elasticity and toughness.
[0020] Please see Figure 3 As shown, the base film layer 1 includes a first surface layer 8 and a second surface layer 9, both of which are made of PE material. PE material has good flexibility and strong tensile strength, thereby improving the strength and durability of the hot stamping film. A reinforcing layer 10 is provided between the first surface layer 8 and the second surface layer 9, and the reinforcing layer 10 is made of TPU material. TPU material is tough, stable and weather resistant, which greatly enhances the structural strength of the hot stamping film, giving it tensile strength.
[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A composite hot stamping film for packaging, comprising a base film layer (1), characterized in that: The base film layer (1) has an adhesive layer (2) on its lower surface. A support layer is provided between the base film layer (1) and the adhesive layer (2). The support layer includes several support strips (3). Each support strip (3) includes several elastic blocks (4). Each elastic block (4) has resilience. Several support strips (3) are bonded between the base film layer (1) and the adhesive layer (2) and several protrusions (5) are formed on the surface of the adhesive layer (2). A force groove (6) is formed between adjacent protrusions (5).
2. The composite hot stamping film for packaging according to claim 1, characterized in that: The elastic block (4) has cavities (7) along its length.
3. The composite hot stamping film for packaging according to claim 1, characterized in that: The elastic block (4) is made of rubber material.
4. The composite hot stamping film for packaging according to claim 1, characterized in that: The base film layer (1) includes a first surface layer (8) and a second surface layer (9), both of which are made of PE material.
5. The composite hot stamping film for packaging according to claim 4, characterized in that: A reinforcing layer (10) is provided between the first surface layer (8) and the second surface layer (9), and the reinforcing layer (10) is made of TPU material.
6. The composite hot stamping film for packaging according to claim 1, characterized in that: The upper surface of the base film layer (1) is provided with a scratch-resistant coating (11).