Digital transfer film

By improving the structure of the digital transfer film, including the design of the release layer and the heat-resistant resin layer, simultaneous hot stamping and pattern transfer can be achieved, solving the problem of step-by-step transfer at high temperatures, improving production efficiency and enhancing the visual effect of the fabric and ink utilization.

CN224392109UActive Publication Date: 2026-06-23SHAOXING NENGFA PACKAGING MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAOXING NENGFA PACKAGING MATERIALS CO LTD
Filing Date
2025-04-12
Publication Date
2026-06-23

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Abstract

The utility model discloses digital transfer printing film relates to digital transfer printing technology, and its technical scheme main points are: original film layer, release layer, resin temperature resistance layer, aluminize layer, protective layer and ink absorption layer in proper order, and release layer separates with resin temperature resistance layer when being heated. The utility model separates original film layer and resin temperature resistance layer in the heat transfer printing process, and makes resin temperature resistance layer, aluminize layer, protective layer and ink absorption layer all transfer to the fabric, and this makes the gilding and pattern transfer printing can be completed simultaneously on the heat transfer printing machine, thereby improves the efficiency of pattern printing and gilding on the fabric, is provided with the color on the resin temperature resistance layer, and when the light passes through resin temperature resistance layer and is reflected through aluminize layer and passes through resin temperature resistance layer again, can show the color different from resin temperature resistance layer and aluminize layer itself, thereby makes people through the adjustment resin temperature resistance layer's color, can make the gilding point on the fabric reflect different light, improves the visual effect of fabric.
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Description

Technical Field

[0001] This utility model relates to digital transfer technology, and more specifically, to digital transfer film. Background Technology

[0002] Digital transfer film is an indispensable material in digital transfer technology. It is mainly used to transfer patterns to fabrics and other products. In addition to printing patterns, existing fabrics are also hot stamping. Hot stamping can improve the visual effect of the fabric under light.

[0003] Digital transfer film consists of a paper base layer, a water-soluble layer, a transfer layer, and an ink-absorbing layer. The ink-absorbing layer absorbs ink, and the transfer layer is transferred to the fabric along with the ink-absorbing layer. It is mainly used to maintain the shape of the pattern, while the water-soluble layer facilitates the separation of the transfer layer and the paper base layer.

[0004] The aluminum plating layer in hot stamping needs to be transferred to the substrate under high temperature and pressure. The paper base layer in the digital transfer film is made of plant fiber, which cannot meet the high temperature requirements. This means that the transfer pattern on the fabric and the hot stamping process need to be completed in two steps, resulting in low production efficiency.

[0005] Therefore, a new solution is needed to address this problem. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a digital transfer film.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a digital transfer film, comprising, in sequence, a base film layer, a release layer, a resin heat-resistant layer, an aluminum plating layer, a protective layer, and an ink-absorbing layer, wherein the release layer separates from the resin heat-resistant layer when heated, and the ink-absorbing layer is used to retain ink.

[0008] The present invention is further configured such that the weight of the release layer per square meter is less than 3 grams.

[0009] The present invention is further configured such that the weight of the resin heat-resistant layer per square meter is less than 5 grams.

[0010] The present invention is further configured such that the weight of the aluminum plating layer per square meter is less than 5 grams.

[0011] The present invention is further configured such that the weight of the protective layer per square meter is less than 3 grams.

[0012] The present invention is further configured such that the weight of the ink-absorbing layer per square meter is less than 3 grams.

[0013] The present invention is further configured such that the release layer is made of silicone resin material.

[0014] In summary, this utility model has the following beneficial effects:

[0015] During the heat transfer process, the original film layer separates from the resin heat-resistant layer, allowing the resin heat-resistant layer, aluminum plating layer, protective layer, and ink-absorbing layer to be transferred onto the fabric. This enables hot stamping and pattern transfer to be completed simultaneously on the heat transfer machine, thereby improving the efficiency of pattern printing and hot stamping on the fabric. The resin heat-resistant layer is colored, and when light passes through the resin heat-resistant layer and is reflected by the aluminum plating layer before passing through the resin heat-resistant layer again, it can exhibit a color different from that of the resin heat-resistant layer and the aluminum plating layer itself. This allows people to adjust the color of the resin heat-resistant layer to make the hot stamping dots on the fabric reflect different light, improving the visual effect of the fabric. Attached Figure Description

[0016] Figure 1 This is a cross-sectional schematic diagram of the present invention.

[0017] In the diagram: 1. Original film layer; 2. Release layer; 3. Resin heat-resistant layer; 4. Aluminum plating layer; 5. Protective layer; 6. Ink-absorbing layer. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] Digital transfer film, such as Figure 1 As shown, the structure sequentially includes a base film layer 1, a release layer 2, a resin heat-resistant layer 3, an aluminum plating layer 4, a protective layer 5, and an ink-absorbing layer 6. The base film layer 1 serves as the substrate, supporting all layers. Compared to a paper base layer, the base film layer 1 has higher heat resistance, allowing the aluminum plating layer 4 to be placed on top of it. When heated, the release layer 2 separates from the resin heat-resistant layer 3. This allows the base film layer 1 to separate from the resin heat-resistant layer 3 during the heat transfer process, enabling the transfer of the resin heat-resistant layer 3, aluminum plating layer 4, protective layer 5, and ink-absorbing layer 6 onto the fabric. This allows hot stamping and pattern transfer to be completed simultaneously on the heat transfer machine, improving the efficiency of pattern printing and hot stamping on the fabric. The resin heat-resistant layer 3... The heat-resistant resin layer 3 is colored. When light passes through the heat-resistant resin layer 3 and is reflected by the aluminum plating layer 4, it can exhibit a color different from that of the heat-resistant resin layer 3 and the aluminum plating layer 4. This allows people to adjust the color of the heat-resistant resin layer 3 to make the hot stamping dots on the fabric reflect different light, thus improving the visual effect of the fabric. The ink-absorbing layer 6 is used to store ink. By setting different shaped patterns on the ink-absorbing layer 6, the fabric can display the pattern that people want to print after heat transfer. In addition, the setting of the ink-absorbing layer 6 can improve the adhesion rate of ink on this transfer film and reduce the loss of ink during the transfer to the digital transfer film.

[0020] Specifically, the release layer 2 is made of silicone resin, which has excellent heat resistance and chemical stability. During the heat transfer process, the release layer 2 made of this material ensures that the resin heat-resistant layer 3 can separate from the release layer 2 in a timely manner, thus guaranteeing the heat transfer effect. Pigments are added to the resin heat-resistant layer 3 to give it a specific color. The material of the resin heat-resistant layer 3 is selected based on the added pigments. After the resin heat-resistant layer 3 is transferred to the fabric along with the aluminized layer 4, the outermost resin heat-resistant layer 3 isolates the aluminized layer 4 from the outside environment, reducing the possibility of the aluminized layer 4 peeling off the fabric. The aluminized layer 4 provides support for other layers, thus ensuring the digital transfer process. The overall smoothness of the film is ensured by the protective layer 5, which is made of acrylic resin. The presence of the protective layer 5 reduces the possibility of ink penetrating to other layers, allowing the ink on the ink-absorbing layer 6 to be transferred to the fabric better after heat transfer, thus improving ink utilization and reducing ink residue on the release layer 2. The protective layer 5 made of this material has high transparency and good weather resistance, allowing light shining on the pattern to pass through the protective layer 5 well, so that the presence of the protective layer 5 will not have a significant impact on the pattern. In addition, the presence of the protective layer 5 also provides good protection for the pattern, preventing the ink in the pattern from oxidizing and discoloring due to prolonged contact with air, thereby increasing the preservation time of the pattern on the fabric.

[0021] The release layer 2 weighs less than 3 grams per square meter, the resin heat-resistant layer 3 weighs less than 5 grams per square meter, and the aluminized layer 4 weighs less than 5 grams per square meter. This design makes the aluminized layer 4 relatively thin, preventing it from significantly affecting the bending performance of the heat transfer film. The protective layer 5 weighs less than 3 grams per square meter, and the ink-absorbing layer 6 weighs less than 3 grams per square meter. The thicknesses of the ink-absorbing layer 6, protective layer 5, aluminized layer 4, release layer 2, and original film layer 1 are similar. When manufacturing this digital transfer film, the original film... The lamination of layer 1 and release layer 2, the lamination of resin heat-resistant layer 3 and aluminum plating layer 4, and the lamination of protective layer 5 and ink-absorbing layer 6 are carried out simultaneously but on different production lines, which can improve production efficiency. After the resin heat-resistant layer 3 and aluminum plating layer 4 are cooled to room temperature, the resin heat-resistant layer 3 is then laminated with release layer 2, and the aluminum plating layer 4 is laminated with protective layer 5 to complete the lamination of the entire digital transfer film. This production method can prevent the high temperature and high pressure environment required for the aluminum plating layer 4 to be laminated on the resin heat-resistant layer 3 from damaging the other layers.

[0022] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A digital transfer film characterized by: The original film layer (1), the release layer (2), the resin temperature-resistant layer (3), the aluminum plating layer (4), the protective layer (5) and the ink absorption layer (6) are sequentially arranged, the release layer (2) is separated from the resin temperature-resistant layer (3) when heated, and the ink absorption layer (6) is used for saving ink.

2. The decal film according to claim 1, wherein: The weight of the release layer (2) per square meter is less than 3 grams.

3. The decal film of claim 1, wherein: The weight of the resin temperature-resistant layer (3) per square meter is less than 5 grams.

4. The decal film of claim 1, wherein: The weight of the aluminum plating layer (4) per square meter is less than 5 grams.

5. The decal film according to claim 1, wherein: The weight of the protective layer (5) per square meter is less than 3 grams.

6. The decal film of claim 1, wherein: The weight of the ink absorption layer (6) per square meter is less than 3 grams.

7. The decal film according to claim 2, wherein: The release layer (2) is made of silicone material.