Anti-deformation heat transfer film

Abstract

The utility model belongs to the technical field of transfer films, and particularly relates to an anti-deformation heat transfer film which comprises a protective film and a release film, pinching pieces are fixedly connected to the four corners of the protective film, second connecting grooves are formed in the ends of the pinching pieces, and the pinching pieces are fixedly connected with the arc ends of the protective film through the second connecting grooves. A pull strip is fixedly connected to the corner of the release film, a first connecting groove is formed in the outer wall of the pull strip, the pull strip is fixedly connected with the arc end of the release film through the first connecting groove, a pull hole is formed in the top of the pull strip, mounting grooves are formed in the tops and the bottoms of the pinching pieces, and rubber pieces are fixedly connected to the inner walls of the mounting grooves. By clamping fingers in the pull holes in the pull strips, pulling the pull strips upwards, pinching the pinching pieces and pulling the pinching pieces outwards, due to the fact that geometrical shapes of the release film and a corner film change, stress can be concentrated at the position, the stress concentration enables the adhesive force of the film at the corner to be weakened, and therefore the release film is easy to uncover from the corner.

Description

Technical Field

[0001] The utility model relates to the technical field of transfer films, and more specifically to an anti-deformation heat transfer film. Background Art

[0002] Thermal transfer film is a polar material with high tensile strength, good thermal stability, low heat shrinkage, smooth and clean surface, good peelability, and can be used repeatedly. Thermal transfer film is widely used in the surface decoration industry of fabrics and glass due to its many excellent properties. The decorative pattern on the thermal transfer is transferred to the surface of the decorated building material by heating the thermal transfer film once to form a decorative film. After being decorated with thermal transfer film, the fabric can fully show its noble, generous and fashionable characteristics. However, due to many limitations in production process and production technology, traditional thermal transfer film is increasingly difficult to meet the functional needs of the market.

[0003] After searching, it was found that a document with announcement number CN216864064U specifically discloses an anti-deformation PET thermal transfer film. In the document, the device is provided with a first release tear strip on the protective film and a second release tear strip on the release film, which can facilitate users to quickly tear off the protective film and the release film. However, the structures of the first release tear strip and the second release tear strip are relatively simple. When the operator peels off the protective film and the release film, the stress distribution at the first release tear strip and the second release tear strip and the protective film and the release film is relatively uniform, which makes it difficult to peel off the film and the film is easily rolled up. For this reason, we propose an anti-deformation thermal transfer film. Summary of the invention

[0004] The utility model provides an anti-deformation heat transfer film. Since the geometric shape of the release film changes at the corners, stress is concentrated there. This stress concentration weakens the adhesion of the film at the corners, so it is easier to peel off the release film from the corners.

[0005] The utility model proposes an anti-deformation heat transfer film, including a protective film and a release film, wherein pinch pieces are fixedly connected at the four corners of the protective film, a second connecting groove is provided at the end of the pinch piece, and the pinch piece is fixedly connected to the arc end of the protective film through the second connecting groove, a pull strip is fixedly connected at the corner of the release film, a first connecting groove is provided on the outer wall of the pull strip, and the pull strip is fixedly connected to the arc end of the release film through the first connecting groove, and a pull hole is provided on the top of the pull strip.

[0006] Preferably, the tops and bottoms of the plurality of pinching pieces are provided with mounting grooves, the inner walls of the plurality of mounting grooves are fixedly connected with rubber sheets, and the outer walls of the plurality of rubber sheets are provided with frosted surfaces.

[0007] Preferably, the outer wall of the protective film is fixedly connected to a first support bar, the outer wall of the first support bar is fixedly connected to two second support bars, the two second support bars are respectively fixedly connected to the protective film, the two ends of the first support bar are respectively fixedly connected to the rubber sheet, and the relatively far sides of the two second support bars are respectively fixedly connected to the rubber sheet.

[0008] Preferably, it also includes a heat transfer film substrate, a second heat conductive layer is fixedly connected to one side of the outer wall of the heat transfer film substrate, a first heat conductive layer is fixedly connected to the other side of the outer wall of the heat transfer film substrate, an elastic layer is fixedly connected to the outer wall of the second heat conductive layer, a reinforcement layer is fixedly connected to the outer wall of the first heat conductive layer, a high temperature resistant layer is fixedly connected to the outer wall of the elastic layer, a waterproof layer is fixedly connected to the outer wall of the high temperature resistant layer, an adhesive layer is provided on the outer wall of the waterproof layer, the adhesive layer is bonded to the release film, and the reinforcement layer is bonded to the protective film.

[0009] Preferably, the first heat-conducting layer and the second heat-conducting layer are both made of glass fiber, the elastic layer is made of activated carbon fiber, and the high-temperature resistant layer is made of polytetrafluoroethylene.

[0010] Preferably, the reinforcement layer is made of polyester fiber, the bonding layer is made of epoxy resin adhesive, and the waterproof layer is made of polyvinyl chloride.

[0011] The beneficial effects of the present invention are:

[0012] 1. The anti-deformation heat transfer film is made by clamping the finger inside the pull hole on the pull strip, pulling the pull strip upward, and pinching the pinch piece and pulling the pinch piece outward. Since the geometric shape of the film at the corner of the release film changes, the stress will be concentrated there. This stress concentration weakens the adhesion of the film at the corner, so it is easier to peel off the release film from the corner.

[0013] 2. The anti-deformation heat transfer film can increase friction by providing a rubber sheet and a frosted surface on the surface, so that when an operator pinches the rubber sheet, it is more stable and avoids slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the pull rod structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the tablet pinching structure of the utility model;

[0017] Figure 4 It is a schematic diagram of the protective film, pinching sheet and second supporting strip structure of the utility model.

[0018] In the figure: 1. first heat-conducting layer; 2. heat transfer film substrate; 3. second heat-conducting layer; 4. elastic layer; 5. high temperature resistant layer; 6. waterproof layer; 7. reinforcement layer; 8. protective film; 9. adhesive layer; 10. release film; 11. pull strip; 12. first connecting groove; 13. pull hole; 14. pinch piece; 15. second connecting groove; 16. installation groove; 17. rubber sheet; 18. frosted surface; 19. first support strip; 20. second support strip. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1-Figure 4 As shown, an anti-deformation heat transfer film includes a heat transfer film substrate 2, a protective film 8 and a release film 10, wherein pinch pieces 14 are fixedly connected at the four corners of the protective film 8, a second connecting groove 15 is provided at the end of the pinch piece 14, and the pinch piece 14 is fixedly connected to the arc end of the protective film 8 through the second connecting groove 15, a pull strip 11 is fixedly connected at the corner of the release film 10, a first connecting groove 12 is provided on the outer wall of the pull strip 11, and the pull strip 11 is fixedly connected to the arc end of the release film 10 through the first connecting groove 12, and a pull hole 13 is provided on the top of the pull strip 11, and the pull strip 11 is pulled upward by clamping the finger inside the pull hole 13 on the pull strip 11, and the pinch piece 14 is pulled outward by pinching the pinch piece 14, because the geometric shape of the film at the corner of the release film 10 changes, the stress will be concentrated there, and this stress concentration weakens the adhesion of the film at the corner, so it is easier to peel off the release film 10 from the corner.

[0021] Multiple pinching pieces 14 are provided with mounting grooves 16 at the top and bottom, multiple mounting grooves 16 are fixedly connected with rubber sheets 17 on the inner walls, multiple rubber sheets 17 are provided with frosted surfaces 18 on the outer walls. By providing the rubber sheets 17 and the frosted surfaces 18 on the surfaces thereof, friction can be increased, so that when the operator pinches the rubber sheets 17, it is more stable and slipping is avoided.

[0022] A first support bar 19 is fixedly connected to the outer wall of the protective film 8, and two second support bars 20 are fixedly connected to the outer wall of the first support bar 19. The two second support bars 2 are respectively fixedly connected to the protective film 8, and both ends of the first support bar 19 are respectively fixedly connected to the rubber sheet 17, and the relatively distant sides of the two second support bars 20 are respectively fixedly connected to the rubber sheet 17. By arranging the second support bars 20 and the first support bars 19, the supporting force of the protective film 8 can be improved.

[0023] A second heat-conducting layer 3 is fixedly connected to one side of the outer wall of the heat transfer film substrate 2, and a first heat-conducting layer 1 is fixedly connected to the other side of the outer wall of the heat transfer film substrate 2. The outer wall of the second heat-conducting layer 3 is fixedly connected to an elastic layer 4, the outer wall of the first heat-conducting layer 1 is fixedly connected to a reinforcement layer 7, the outer wall of the elastic layer 4 is fixedly connected to a high-temperature resistant layer 5, the outer wall of the high-temperature resistant layer 5 is fixedly connected to a waterproof layer 6, and an adhesive layer 9 is provided on the outer wall of the waterproof layer 6, the adhesive layer 9 is bonded to a release film 10, and the reinforcement layer 7 is bonded to a protective film 8.

[0024] The first heat-conducting layer 1 and the second heat-conducting layer 3 are both made of glass fiber, which has good insulation, heat resistance and corrosion resistance, which not only improves the thermal conductivity of the utility model, but also improves the corrosion resistance of the utility model, effectively extending the service life of the utility model. The elastic layer 4 is made of activated carbon fiber, which has good elasticity, acid and alkali resistance, high temperature resistance, strong adaptability, good conductivity and chemical stability, and can be recycled, which reduces the economic cost and avoids deformation of the utility model when stretched. The high-temperature resistant layer 5 is made of polytetrafluoroethylene, which has excellent heat resistance and cold resistance, and is also resistant to acid, alkali and various organic solvents, which can improve the high-temperature resistance of the utility model.

[0025] The reinforcement layer 7 is made of polyester fiber, and the bonding layer 9 is made of epoxy resin adhesive. The epoxy resin adhesive has excellent bonding performance and good functionality, and can resist corrosion from various media such as acid, alkali, smoke, and solvents, thereby improving the bonding effect of the bonding layer 9 and extending the service life of the utility model. The waterproof layer 6 is made of polyvinyl chloride, which has stable physical and chemical properties, is insoluble in water, has low water vapor permeability, and is not easily corroded by acid and alkali, and can effectively prevent water vapor from penetrating into the interior of the utility model and causing damage to the utility model.

[0026] It should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A deformation-resistant thermal transfer film, comprising a protective film (8) and a release film (10), characterized in that: The protective film (8) is fixedly connected with pinch pieces (14) at the four corners, and a second connecting groove (15) is provided at the end of the pinch piece (14). The pinch piece (14) is fixedly connected to the arc end of the protective film (8) through the second connecting groove (15). The release film (10) is fixedly connected with a pull strip (11) at the corner, and a first connecting groove (12) is provided on the outer wall of the pull strip (11). The pull strip (11) is fixedly connected to the arc end of the release film (10) through the first connecting groove (12), and a pull hole (13) is provided at the top of the pull strip (11).

2. The anti-deformation thermal transfer film according to claim 1, characterized in that: The tops and bottoms of the plurality of pinching pieces (14) are provided with mounting grooves (16), the inner walls of the plurality of mounting grooves (16) are fixedly connected with rubber sheets (17), and the outer walls of the plurality of rubber sheets (17) are provided with frosted surfaces (18).

3. The anti-deformation thermal transfer film according to claim 2, characterized in that: The outer wall of the protective film (8) is fixedly connected to a first support strip (19), and the outer wall of the first support strip (19) is fixedly connected to two second support strips (20), the two second support strips (20) are respectively fixedly connected to the protective film (8), the two ends of the first support strip (19) are respectively fixedly connected to the rubber sheet (17), and the relatively far sides of the two second support strips (20) are respectively fixedly connected to the rubber sheet (17).

4. The anti-deformation thermal transfer film according to claim 1, characterized in that: The invention also comprises a heat transfer film substrate (2), wherein a second heat conductive layer (3) is fixedly connected to one side of the outer wall of the heat transfer film substrate (2), a first heat conductive layer (1) is fixedly connected to the other side of the outer wall of the heat transfer film substrate (2), an elastic layer (4) is fixedly connected to the outer wall of the second heat conductive layer (3), a reinforcement layer (7) is fixedly connected to the outer wall of the first heat conductive layer (1), a high temperature resistant layer (5) is fixedly connected to the outer wall of the elastic layer (4), a waterproof layer (6) is fixedly connected to the outer wall of the high temperature resistant layer (5), an adhesive layer (9) is provided on the outer wall of the waterproof layer (6), the adhesive layer (9) is bonded to the release film (10), and the reinforcement layer (7) is bonded to the protective film (8).

5. The anti-deformation thermal transfer film according to claim 4, characterized in that: The first heat-conducting layer (1) and the second heat-conducting layer (3) are both made of glass fiber, the elastic layer (4) is made of activated carbon fiber, and the high-temperature resistant layer (5) is made of polytetrafluoroethylene.

6. The anti-deformation thermal transfer film according to claim 5, characterized in that: The reinforcement layer (7) is made of polyester fiber, the bonding layer (9) is made of epoxy resin adhesive, and the waterproof layer (6) is made of polyvinyl chloride.

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