Wear-resistant multi-layer heat transfer film and winding drum

Abstract

The utility model relates to the technical field of multi-layer heat transfer printing films, in particular to a wear-resistant multi-layer heat transfer printing film and a winding drum, the wear-resistant multi-layer heat transfer printing film comprises a film body, the winding drum and a multi-layer composite structure, the multi-layer composite structure comprises a coating wear-resistant layer, a pigment layer and a protective layer, the pigment layer is fixed to the surface of the heat transfer printing film body in an adhesive mode, and the protective layer is arranged on the coating wear-resistant layer. The protective layer is bonded and fixed on the surface of the pigment layer, and the coating wear-resistant layer is bonded and fixed on the surface of the protective layer; by means of the multi-layer composite structure, the surface smoothness of the heat transfer film is improved, scratches and abrasion are reduced, the service life of the heat transfer film is prolonged, the shape memory net in the protective layer enables the heat transfer film to have the self-repairing function under the condition that the heat transfer film is not damaged much, the maintenance cost is reduced, and the winding drum is arranged, so that the heat transfer film is convenient to use. When the heat transfer printing film is wound, the winding position can be limited, the heat transfer printing film is not prone to dislocation in the winding process, meanwhile, the pressing plate on the winding drum abuts against the heat transfer printing film, and the heat transfer printing film on the winding drum is prevented from loosening.

Description

Technical Field

[0001] The present application relates to the field of multi-layer thermal transfer films, and in particular to a wear-resistant multi-layer thermal transfer film and a winding drum. Background Art

[0002] Thermal transfer is a type of transfer printing that essentially involves pre-printing a pattern or text onto a substrate film, creating a thermally concealed layer. Heat and pressure are then used to transfer the printed image or text to the substrate. As a mature specialty printing technology, thermal transfer is environmentally friendly and complies with international non-toxic standards. It requires no platemaking or batch production, and thermal transfer film can create multi-color patterns simultaneously, eliminating the need for overprinting. The resulting printed patterns are rich in depth, with minimal color variation and excellent reproducibility, achieving the desired effect.

[0003] With reference to the Chinese patent application with publication number CN221049326U, a thermal transfer film is disclosed, wherein the interior of the protective film is bonded with hygroscopic silica gel particles, and the bottom of the hygroscopic silica gel particles is fixedly connected to an adhesive base plate, and a plurality of gas exchange holes are provided on the surface of the adhesive base plate. When the outside of the thermal transfer film body is in a relatively humid environment, the protective film close to the surface of the thermal transfer film body has gas exchange holes, so that moisture passes through the gas exchange holes and is absorbed by the hygroscopic silica gel particles inside the protective film, and then the thermal transfer film body is reduced in the influence of moisture, thereby improving the protection of the thermal transfer film body. At the same time, since the upper surface of the protective film is provided with an anti-debonding pad, when the thermal transfer film body is rolled up, the anti-debonding pad will increase the friction of the thermal transfer film body after rolling up, so that the thermal transfer film body will not fall off easily during use.

[0004] However, the wear resistance of the thermal transfer film in the existing technology is poor. During use, the pattern is easily peeled off or becomes blurred due to friction, which may cause wear and damage in a short period of time, requiring frequent replacement, increasing maintenance and replacement costs. Moreover, the highly wear-resistant film material may not be fully recyclable, resulting in a waste of resources. To this end, we have designed a wear-resistant multi-layer thermal transfer film and winding drum. Utility Model Content

[0005] The wear-resistant multi-layer thermal transfer film and winding drum provided in the embodiments of the present application can solve the technical problem that the thermal transfer film has poor wear resistance, the pattern is easily peeled off or becomes blurred due to friction during use, and may cause wear and damage in a short period of time, requiring frequent replacement.

[0006] An embodiment of the present application provides a wear-resistant multi-layer thermal transfer film and a winding drum including a thermal transfer film body, a winding drum and a multi-layer composite structure. The multi-layer composite structure includes a coated wear-resistant layer, a pigment layer and a protective layer. The pigment layer is bonded and fixed to the surface of the thermal transfer film body, the protective layer is bonded and fixed to the surface of the pigment layer, the coated wear-resistant layer is bonded and fixed to the surface of the protective layer, and the winding drum is used to wind up the thermal transfer film and fix it.

[0007] The above technical solutions in the embodiments of the present application have at least the following technical effects:

[0008] 1. This application provides a wear-resistant coating layer to improve the surface smoothness of the thermal transfer film and reduce scratches and wear in high-frequency use and high-friction environments. It can also improve the thermal transfer film's resistance to moisture and reduce the adhesion of water stains and stains. By providing a pigment layer, it can provide high gloss, making the thermally transferred pattern look brighter and more attractive. At the same time, the pigment layer has good adhesion to the thermal transfer film body, ensuring that the pattern will not fall off or fade during use. The pattern thermally transferred through the pigment layer has good waterproof performance and can resist the influence of moisture on color, ensuring that the pattern remains clear in a humid environment. By providing a protective layer, the wear resistance of the thermal transfer film is further improved and its service life is extended. The shape memory network in the protective layer enables the thermal transfer film to have a self-repair function when it is not seriously damaged, thereby reducing maintenance costs.

[0009] 2. The present application sets a winding drum. When the thermal transfer film is wound up, the fixed rings on both sides of the winding drum will limit the winding position of the thermal transfer film, so that the thermal transfer film will not be easily misplaced during winding, and it is convenient to wind the thermal transfer film onto the surface of the winding drum. When the winding of the thermal transfer film is completed, the connecting plate on the winding drum is pulled to move the telescopic spring upward, so that the pressure plate connected to the connecting plate is slidably connected to the wound thermal transfer film, thereby avoiding the loosening of the thermal transfer film wound on the winding drum and facilitating the storage of the thermal transfer film.

[0010] In some embodiments, a shape memory mesh is provided inside the protective layer, and the shape memory mesh is fixedly bonded inside the protective layer.

[0011] In some embodiments, the shape memory mesh is made of a shape memory polymer material, and the protective layer is made of a high-performance resin material.

[0012] In some embodiments, the coating wear-resistant layer is made of an organic silicone resin material, and the pigment layer is made of a mixture of ink pigment and pearlescent pigment.

[0013] In some embodiments, fixed rings are fixedly connected to the end surfaces on both sides of the winding drum, and mounting grooves are provided on the fixed rings.

[0014] In some embodiments, a fixing block is fixedly connected inside the installation groove, a limiting groove is provided on the fixing block, and the spring is fixedly connected inside the limiting groove.

[0015] In some embodiments, a connecting plate is fixedly mounted on one end of the telescopic spring away from the fixed block, a sliding groove is provided on the connecting plate, and a pressure plate is slidably connected in the sliding groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 A schematic diagram of the structure of a wear-resistant multi-layer thermal transfer film provided in an embodiment of the present application wound on a winding drum;

[0018] Figure 2 for Figure 1 A magnified schematic diagram of part B in the middle;

[0019] Figure 3 A schematic structural diagram of a wear-resistant multi-layer thermal transfer film provided in an embodiment of the present application;

[0020] Figure 4 for Figure 3 Enlarged schematic diagram of part A in the middle.

[0021] Among them, the figure marks in the figure are: 1. Thermal transfer film body; 2. Winding drum; 3. Multi-layer composite structure; 31. Coating wear-resistant layer; 32. Pigment layer; 33. Protective layer; 331. Shape memory net; 4. Fixed ring; 5. Mounting groove; 6. Fixed block; 7. Limiting groove; 8. Telescopic spring; 9. Connecting plate; 10. Slide groove; 11. Pressure plate. DETAILED DESCRIPTION

[0022] Based on this, in order to improve the poor wear resistance of the thermal transfer film in the related technology, the pattern may easily fall off or become blurred due to friction during use, which may cause wear and damage in a short period of time, requiring frequent replacement, increasing the cost of maintenance and replacement, and the highly wear-resistant film material may not be fully recycled, resulting in waste of resources. The embodiments of this application provide the following solutions.

[0023] See also Figures 1 to 4A wear-resistant multi-layer thermal transfer film and winding drum includes a thermal transfer film body 1, a winding drum 2 and a multi-layer composite structure 3. The winding drum 2 is used to wind up the thermal transfer film and fix it. The multi-layer composite structure 3 is used to improve the overall performance of the thermal transfer film and extend its service life.

[0024] See also Figures 1 to 2 The multi-layer composite structure 3 includes a coating wear-resistant layer 31, a pigment layer 32 and a protective layer 33. The pigment layer 32 is bonded and fixed to the surface of the thermal transfer film body 1, and the protective layer 33 is bonded and fixed to the surface of the pigment layer 32. The coating wear-resistant layer 31 is bonded and fixed to the surface of the protective layer 33. A shape memory net 331 is provided inside the protective layer 33. The shape memory net 331 is fixedly bonded inside the protective layer 33. The shape memory net 331 is made of a shape memory polymer material, the protective layer 33 is made of a high-performance resin material, the coating wear-resistant layer 31 is made of a silicone resin material, and the pigment layer 32 is made of a mixture of ink pigment and pearlescent pigment.

[0025] In this way, by setting up a coating wear-resistant layer 31, the surface smoothness of the thermal transfer film can be improved in a high-frequency use and high-friction environment, and scratches and wear can be reduced. The thermal transfer film can also improve its resistance to moisture and reduce the adhesion of water stains and stains. By setting up a pigment layer 32, high gloss can be provided, making the thermally transferred pattern look brighter and more attractive. At the same time, the pigment layer 32 has good adhesion to the thermal transfer film body 1, ensuring that the pattern will not fall off or fade during use, and the pattern thermally transferred through the pigment layer 32 has good waterproof performance, can resist the influence of moisture on color, and ensure that the pattern can still remain clear in a humid environment. By setting up a protective layer 33, the wear resistance of the thermal transfer film is further improved and its service life is extended. The shape memory network 331 in the protective layer 33 enables the thermal transfer film to have a self-repair function when it is not seriously damaged, which can reduce maintenance costs.

[0026] See also Figures 3 and 4 , a fixed ring 4 is fixedly connected to the end faces of both sides of the winding drum 2, a mounting groove 5 is opened on the fixed ring 4, a fixed block 6 is fixedly connected inside the mounting groove 5, a limiting groove 7 is opened on the fixed block 6, a telescopic spring 8 is fixedly connected in the limiting groove 7, a connecting plate 9 is fixedly installed on the end of the telescopic spring 8 away from the fixed block 6, a sliding groove 10 is opened on the connecting plate 9, and a pressure plate 11 is slidably connected in the sliding groove 10.

[0027] With such arrangement, when the thermal transfer film is rolled up, the fixed rings 4 on both sides of the winding drum 2 will limit the rolling position of the thermal transfer film, so that the thermal transfer film will not be easily misplaced during rolling. When the thermal transfer film is rolled up, the connecting plate 9 is pulled upward, and under the action of the limiting groove 7, the telescopic spring 8 under the connecting plate 9 is extended vertically upward. When the height of the connecting plate 9 is consistent with the height of the thermal transfer film, the pressing plate 11 is inserted along the direction of the slide groove 10 on the connecting plate 9 so that the pressing plate 11 contacts the surface of the rolled thermal transfer film. Then, the connecting plate 9 is released. Under the tension generated by the deformation of the telescopic spring 8, the pressing plate 11 will abut the surface of the thermal transfer film, so that the thermal transfer film will not loosen.

[0028] The effect of such arrangement is that, by setting the winding drum 2, when the thermal transfer film is being wound up, the fixed rings 4 on both sides of the winding drum 2 will limit the winding position of the thermal transfer film, so that the thermal transfer film will not be easily misplaced during winding up, and it is convenient to wind the thermal transfer film onto the surface of the winding drum 2. When the winding of the thermal transfer film is completed, the connecting plate 9 on the winding drum 2 is pulled to move the telescopic spring 8 upward, so that the pressure plate 11 slidably connected to the connecting plate 9 is in contact with the wound up thermal transfer film, thereby avoiding the loosening of the thermal transfer film wound up on the winding drum 2 and facilitating the storage of the thermal transfer film.

[0029] From the above, we can see that the working principle of this application is as follows:

[0030] The wear-resistant layer 31 is coated to improve the surface smoothness of the thermal transfer film and reduce scratches and wear in high-frequency use and high-friction environments. It can also improve the thermal transfer film's resistance to moisture and reduce the adhesion of water stains and stains. The pigment layer 32 can provide high gloss, making the thermally transferred pattern look brighter and more attractive. At the same time, the pigment layer 32 has good adhesion to the thermal transfer film body 1, ensuring that the pattern will not fall off or fade during use. The pattern thermally transferred through the pigment layer 32 has good waterproof performance and can resist the influence of moisture on color, ensuring that the pattern remains clear in a humid environment. The protective layer 33 further improves the wear resistance of the thermal transfer film and extends its service life. The shape memory network 331 in the protective layer 33 enables the thermal transfer film to have a self-repairing function when it is not seriously damaged, thereby reducing maintenance costs.

[0031] When winding the thermal transfer film, the fixed rings 4 on both sides of the winding drum 2 will limit the winding position of the thermal transfer film, so that the thermal transfer film will not be easily misplaced during winding. When the winding of the thermal transfer film is completed, the connecting plate 9 is pulled upward. Under the action of the limiting groove 7, the telescopic spring 8 under the connecting plate 9 is extended vertically upward. When the height of the connecting plate 9 is consistent with the height of the thermal transfer film, the pressing plate 11 is inserted along the direction of the slide groove 10 on the connecting plate 9 so that the pressing plate 11 contacts the surface of the wound thermal transfer film. Then, the connecting plate 9 is released. Under the tension generated by the deformation of the telescopic spring 8, the pressing plate 11 will abut the surface of the thermal transfer film, so that the thermal transfer film will not loosen.

[0032] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A wear-resistant multi-layer thermal transfer film, characterized in that: The invention comprises a heat transfer film body (1) and a multi-layer composite structure (3), wherein the multi-layer composite structure (3) comprises a coating wear-resistant layer (31), a pigment layer (32) and a protective layer (33), wherein the pigment layer (32) is bonded and fixed to the surface of the heat transfer film body (1), the protective layer (33) is bonded and fixed to the surface of the pigment layer (32), and the coating wear-resistant layer (31) is bonded and fixed to the surface of the protective layer (33).

2. The wear-resistant multi-layer thermal transfer film according to claim 1, characterized in that: A shape memory net (331) is provided inside the protective layer (33), and the shape memory net (331) is fixedly bonded inside the protective layer (33).

3. The wear-resistant multi-layer thermal transfer film according to claim 2, characterized in that: The shape memory net (331) is made of a shape memory polymer material, and the protective layer (33) is made of a high-performance resin material.

4. The wear-resistant multi-layer thermal transfer film according to claim 1, characterized in that: The coating wear-resistant layer (31) is made of an organic silicone resin material, and the pigment layer (32) is made of a mixture of ink pigment and pearlescent pigment.

5. A winding drum for winding the wear-resistant multi-layer thermal transfer film according to any one of claims 1 to 4, characterized in that: It comprises a winding drum (2), and fixed rings (4) are fixedly connected to the end surfaces on both sides of the winding drum (2), and the fixed rings (4) are provided with mounting grooves (5).

6. The winding drum according to claim 5, characterized in that: A fixing block (6) is fixedly connected inside the installation groove (5), a limiting groove (7) is provided on the fixing block (6), and a telescopic spring (8) is fixedly connected inside the limiting groove (7).

7. A take-up drum according to claim 6, characterized in that: A connecting plate (9) is fixedly mounted on one end of the telescopic spring (8) away from the fixed block (6), a sliding groove (10) is provided on the connecting plate (9), and a pressing plate (11) is slidably connected in the sliding groove (10).

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