Invisible variable image-text heat transfer film

Abstract

The utility model relates to an invisible variable image-text thermal transfer film, which comprises a substrate film layer and a release layer which are laminated, the surface of the release layer comprises a positioning image-text area and an image-text-free area, and the positioning image-text area comprises a fluorescent ink layer, a UV (ultraviolet) coating and a glue layer which are sequentially laminated from the release layer; the fluorescent ink layer comprises a fluorescent ink bottom layer, a plurality of irregular fluorescent convex blocks are formed on the surface of the fluorescent ink bottom layer according to customized images and texts, and concave blocks are formed between the adjacent fluorescent convex blocks; the UV coating covers the surface of the fluorescent ink layer, the concave blocks of the fluorescent ink layer are filled with the UV coating, the UV coating is higher than the fluorescent convex blocks of the fluorescent ink layer, and the surface of the UV coating is leveled to form a horizontal surface; and a glue layer is arranged above the UV coating. According to the utility model, the fluorescent ink layer is hidden in the whole transfer printing film, the concave-convex feeling is avoided, the reflection of light rays is avoided, the invisibility to a certain degree is realized, and the use feeling and the aesthetic property of the product are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a transfer film technical field especially relates to a variable graphic heat transfer film of invisible. BACKGROUND

[0002] The hot transfer decoration process is through one-time heating of the hot transfer film, and the decorative pattern on the hot transfer is transferred to the surface of the decorated building material to form a high-quality decorative film. In the hot transfer process, the protective layer and the pattern layer are separated from the polyester substrate by the combined action of heat and pressure, and the entire decorative layer is permanently glued to the base material. With the popularization and application of hot transfer technology, the requirements for the decoration and aesthetics of the transfer film are becoming higher and higher.

[0003] Nowadays, the application of fluorescent ink is more and more in the industry, not only for fluorescent anti-counterfeiting, but also for printing two-dimensional codes or other promotional graphics. However, the fluorescent coating has the characteristics of unevenness, which also reflects more light due to unevenness. From the user's touch and visual perception, the existence is too strong, which affects the use and aesthetics of the product. Therefore, the applicant proposes a variable graphic heat transfer film of invisible. SUMMARY

[0004] The utility model aims at overcoming the above-mentioned insufficient, provides a variable graphic heat transfer film of invisible, makes the fluorescent ink layer and the whole body as one, achieves the invisible effect, improves the aesthetics.

[0005] The utility model aims at overcoming the above-mentioned insufficient, provides a variable graphic heat transfer film of invisible, makes the fluorescent ink layer and the whole body as one, achieves the invisible effect, improves the aesthetics.

[0006] A variable graphic heat transfer film of invisible, it includes laminated base film layer and release layer, the surface of release layer includes positioning graphic area and no graphic area, positioning graphic area includes fluorescent ink layer, UV coating and glue layer which are laminated by release layer in turn;

[0007] The fluorescent ink layer includes a fluorescent ink bottom layer, the surface of the fluorescent ink bottom layer forms a plurality of irregular fluorescent bumps according to the customized graphics, and a recessed block is formed between adjacent fluorescent bumps;

[0008] The UV coating covers the surface of the fluorescent ink layer, the UV coating fills the recessed block of the fluorescent ink layer, and the UV coating is higher than the fluorescent bump of the fluorescent ink layer, the surface of the UV coating is leveled to form a horizontal surface;

[0009] The UV coating is provided with a glue layer above, and the glue layer covers the entire positioning graphic area and no graphic area.

[0010] Further, a connecting layer is provided between the fluorescent ink layer and the UV coating;The UV coating is covered on the upper side of the connecting layer.

[0011] Further, the connecting layer covers the surface of the fluorescent ink layer, fills the concave blocks of the fluorescent ink layer, and is higher than the fluorescent convex blocks of the fluorescent ink layer, and the surface of the connecting layer is leveled to form a horizontal surface.

[0012] Further, the side surface of the UV coating is flush with the side surface of the connecting layer.

[0013] Further, the connecting layer wraps the outside of the fluorescent ink layer, and the horizontal surface size of the connecting layer is greater than the surface size of the fluorescent ink layer.

[0014] Further, the UV coating covers the entire positioning text area and non-text area, that is, the UV coating wraps the outside of the connecting layer and the side surface is flush with the side surface of the substrate film layer 1, and the plane orientation of the UV coating is consistent with the plane orientation of the substrate film layer.

[0015] Further, the connecting layer covers the entire positioning text area and non-text area, that is, the connecting layer wraps the outside of the fluorescent ink layer and the side surface is flush with the side surface of the substrate film layer, and the plane orientation of the connecting layer is consistent with the plane orientation of the substrate film layer.

[0016] Further, the upper surface of the connecting layer is provided with a UV coating layer with the same surface area; and the upper surface of the UV coating layer is provided with a glue layer with the same surface area.

[0017] Further, the connecting layer is a resin adhesive layer.

[0018] Further, the substrate film layer adopts a PET film.

[0019] Compared with the prior art, the utility model has the beneficial effects that:

[0020] The utility model discloses a variable text invisible heat transfer printing film, through setting the leveling layer above the fluorescent ink layer, can select UV coating leveling or connecting layer leveling, hides the fluorescent ink layer in the whole transfer printing film, has no concave-convex feeling, also avoids reflecting light, achieves invisible to a certain extent, and greatly improves the use feeling and the aesthetic property of product. DRAWINGS

[0021] Figure 1 It is the top view of embodiment 1 of the utility model.

[0022] Figure 2 It is the sectional view of embodiment 1 of the utility model.

[0023] Figure 3 It is the sectional view of embodiment 2 of the utility model.

[0024] Figure 4 It is the sectional view of embodiment 3 of the utility model.

[0025] Figure 5 This is a cross-sectional view of Example 4 of the present utility model.

[0026] Figure 6 This is a cross-sectional view of Example 5 of the present utility model.

[0027] Figure 7 This is a cross-sectional view of Example 6 of the present utility model.

[0028] Figure 8 This is a cross-sectional view of the fluorescent ink bottom layer of the present invention.

[0029] in:

[0030] Base film layer 1, release layer 2, fluorescent ink layer 3, fluorescent ink bottom layer 31, fluorescent protrusions 32, recessed blocks 33, connecting layer 4, UV coating 5, glue layer 6, positioning graphic area 11, and non-graphic area 12. DETAILED DESCRIPTION

[0031] To better understand the technical solution of the present invention, the following detailed description is provided with reference to the relevant illustrations. It should be understood that the following specific embodiments are not intended to limit the specific implementation of the technical solution of the present invention; they are merely examples of possible implementations of the technical solution of the present invention. It should be noted that the description herein of the positional relationships of the various components, such as component A being located above component B, is based on the relative positions of the components in the illustrations and is not intended to limit the actual positional relationships of the components. Example 1

[0032] See also Figures 1-8 , Figure 1 A top view of an invisible variable graphic thermal transfer film according to Example 1 is provided. As shown, the invisible variable graphic thermal transfer film according to Example 1 comprises a laminated substrate film layer 1 and a release layer 2. The surface of the release layer 2 includes a positioning graphic area 11 and a non-graphic area 12. The positioning graphic area 11 comprises a fluorescent ink layer 3, a UV coating layer 5, and a glue layer 6, which are sequentially laminated on the release layer 2.

[0033] The fluorescent ink layer 3 includes a fluorescent ink bottom layer 31 . A plurality of irregular fluorescent bumps 32 are formed on the surface of the fluorescent ink bottom layer 31 according to customized patterns. Concave blocks 33 are formed between adjacent fluorescent bumps 32 .

[0034] The UV coating 5 covers the surface of the fluorescent ink layer 3, fills the concave blocks 33 of the fluorescent ink layer 3, and is higher than the fluorescent protrusions 32 of the fluorescent ink layer 3. The surface of the UV coating 5 is leveled to form a horizontal surface.

[0035] The glue layer 6 covers the entire positioning text area 11 and the non-text area 12, that is, the glue layer 6 is arranged above the UV coating layer 5 of the positioning text area 11 and the release layer 2 of the non-text area 12, and the positioning text area 11 is wrapped in the glue layer 6, and the plane orientation of the glue layer 6 is consistent with the plane orientation of the substrate film layer 1.

[0036] The non-text area 12 includes, but is not limited to, a layer structure of the substrate film layer 1 / the release layer 2 / the glue layer 6.

[0037] The substrate film layer 1 can adopt a PET film, which has good transparency, no odor and non-toxic, good chemical stability, insolubility in general solvents at room temperature, and small water absorption, and is very suitable for being used as a substrate film of glass heat transfer printing film.

[0038] The release layer 2 can prevent the formed composite product from sticking to the mold, and a kind of release film is applied between the product and the mold, so that the product can be easily taken out of the mold, while ensuring the surface quality of the product and the integrity of the mold. Example 2

[0039] Referring to Figure 3 , Figure 3 A cross-sectional view of a kind of invisible variable text heat transfer printing film of this embodiment 2 is drawn. As shown in the figure, the invisible variable text heat transfer printing film involved in this embodiment 2 is based on embodiment 1, and is different from embodiment 1 in that:

[0040] The positioning text area 11 includes the fluorescent ink layer 3, the connecting layer 4, the UV coating layer 5 and the glue layer 6 which are sequentially stacked by the release layer 2; and a connecting layer 4 is arranged between the fluorescent ink layer 3 and the UV coating layer 5.

[0041] The connecting layer 4 covers the surface of the fluorescent ink layer 3, the connecting layer 4 fills the recessed block 33 of the fluorescent ink layer 3, and the connecting layer 4 is higher than the fluorescent convex block 32 of the fluorescent ink layer 3, and the surface of the connecting layer 4 is leveled to form a horizontal surface.

[0042] The UV coating layer 5 is arranged above the connecting layer 4, and the side surface of the UV coating layer 5 is flush with the side surface of the connecting layer 4.

[0043] The connecting layer 4 can adopt a resin adhesive, which is used to enhance the bonding force between the fluorescent ink layer 3 and the UV coating layer 5, so that the fluorescent ink layer 3 is not easy to fall off, and the adhesion of the fluorescent ink layer 3 is increased.

[0044] The other structures are the same as those of embodiment 1. Example 3

[0045] Referring to Figure 4 , Figure 4A cross-sectional view of a variable graphic heat transfer film of this embodiment 3 is drawn. As shown in the figure, the variable graphic heat transfer film of this embodiment 3, based on embodiment 2, is different from embodiment 2 in that:

[0046] The connecting layer 4 is wrapped outside the fluorescent ink layer 3, and the horizontal surface size of the connecting layer 4 is larger than the surface size of the fluorescent ink layer 3.

[0047] The non-graphic area 12 includes but is not limited to the layer structure of the substrate film layer 1 / demolding layer 2 / connecting layer 4 / UV coating layer 5 / glue layer 6.

[0048] Other structures are the same as embodiment 2. Embodiment 4

[0049] Referring to Figure 5 , Figure 5 A cross-sectional view of a variable graphic heat transfer film of this embodiment 4 is drawn. As shown in the figure, the variable graphic heat transfer film of this embodiment 4, based on embodiment 3, is different from embodiment 3 in that:

[0050] The UV coating layer 5 covers the entire positioning graphic area 11 and non-graphic area 12, that is, the UV coating layer 5 is wrapped outside the connecting layer 4 and the side surface is flush with the side surface of the substrate film layer 1, and the plane orientation of the UV coating layer 5 is consistent with the plane orientation of the substrate film layer 1.

[0051] The UV coating layer 5 is provided with a glue layer 6 of the same size above.

[0052] The non-graphic area 12 includes but is not limited to the layer structure of the substrate film layer 1 / demolding layer 2 / UV coating layer 5 / glue layer 6, substrate film layer 1 / demolding layer 2 / connecting layer 4 / UV coating layer 5 / glue layer 6.

[0053] Other structures are the same as embodiment 3. Embodiment 5

[0054] Referring to Figure 6 , Figure 6 A cross-sectional view of a variable graphic heat transfer film of this embodiment 5 is drawn. As shown in the figure, the variable graphic heat transfer film of this embodiment 5, based on embodiment 2, is different from embodiment 2 in that:

[0055] The connecting layer 4 covers the entire positioning graphic area 11 and non-graphic area 12, that is, the connecting layer 4 is wrapped outside the fluorescent ink layer 3 and the side surface is flush with the side surface of the substrate film layer 1, and the plane orientation of the connecting layer 4 is consistent with the plane orientation of the substrate film layer 1.

[0056] The upper surface of the connecting layer 4 is provided with a UV coating layer 5 of the same size; the upper surface of the UV coating layer 5 is provided with a glue layer 6 of the same size.

[0057] The non-text area 12 includes but is not limited to the laminated structure of the substrate film layer 1 / demolding layer 2 / connecting layer 4 / UV coating layer 5 / glue layer 6.

[0058] The other structures are the same as those in Embodiment 2. Embodiment 6

[0059] Referring to Figure 7 , Figure 7 A cross-sectional view of a variable invisible text thermal transfer film according to Embodiment 6 is drawn. As shown in the figure, the variable invisible text thermal transfer film according to Embodiment 6 is based on Embodiment 5, and is different from Embodiment 5 in that:

[0060] The connecting layer 4 is not arranged between the fluorescent ink layer 3 and the UV coating layer 5, and the UV coating layer 5 directly covers the entire positioning text area 11 and the non-text area 12, that is, the UV coating layer 5 is wrapped outside the fluorescent ink layer 3 and the side surface is flush with the side surface of the substrate film layer 1, and the plane orientation of the UV coating layer 5 is consistent with the plane orientation of the substrate film layer 1.

[0061] The non-text area 12 includes but is not limited to the laminated structure of the substrate film layer 1 / demolding layer 2 / UV coating layer 5 / glue layer 6.

[0062] The other structures are the same as those in Embodiment 5.

[0063] Working principle:

[0064] The variable invisible text thermal transfer film according to the utility model discloses a PET material is selected as the material of the substrate film layer 1, the demolding layer 2 is coated through the gravure printing equipment, the fluorescent ink layer 3 of custom text is printed through digital printing, the text of the fluorescent ink layer 3 is formed through plate making, and different versions can change different text;

[0065] After printing the fluorescent ink layer 3, a connecting layer 4, that is, a resin layer, is coated through the gravure printing equipment, the connecting layer 4 fills the recess of the fluorescent ink layer 3 and covers the whole, and then the gravure printing is flattened, not only as a connecting layer but also as a protective layer of the fluorescent layer, then a UV liquid is coated through the gravure printing equipment after flattening, and then is transported to a cold water roller for cooling, a UV lamp is arranged to irradiate, a UV coating layer 5 is formed, then is UV cured, finally the glue layer 6 can be coated in the last color group of the gravure printing machine; drying, winding and cutting.

[0066] If the connecting layer 4 is not arranged, the UV coating 5 is directly leveled, or the transparent code is reversed and leveled, the fluorescent ink layer 3 is hidden in the whole transfer film after leveling, no concave-convex feeling, also avoiding reflecting light, achieving invisibility to a certain extent, greatly improving the use feeling and beauty of the product.

[0067] The above is only a specific application example of the present application, and does not constitute any limitation on the protection scope of the present application. Any technical solution formed by equivalent transformation or equivalent replacement falls within the protection scope of the present application.

Claims

1. A latent variable graphic heat transfer film characterized by: It comprises a laminated base film layer (1) and a release layer (2), the surface of the release layer (2) comprises a positioning graphic area (11) and a non-graphic area (12), the positioning graphic area (11) comprises a fluorescent ink layer (3), a UV coating layer (5) and a glue layer (6) laminated by the release layer (2) in turn; The fluorescent ink layer (3) comprises a fluorescent ink bottom layer (31), the surface of the fluorescent ink bottom layer (31) forms a plurality of irregular fluorescent bumps (32) according to the customized graphics, and recessed blocks (33) are formed between adjacent fluorescent bumps (32); The UV coating layer (5) covers the surface of the fluorescent ink layer (3), the UV coating layer (5) fills the recessed blocks (33) of the fluorescent ink layer (3), and the UV coating layer (5) is higher than the fluorescent bumps (32) of the fluorescent ink layer (3), the surface of the UV coating layer (5) is leveled to form a horizontal surface; The UV coating layer (5) is provided above the UV coating layer (5), and the glue layer (6) covers the entire positioning graphic area (11) and the non-graphic area (12).

2. The heat transfer film according to claim 1, wherein: A connecting layer (4) is arranged between the fluorescent ink layer (3) and the UV coating layer (5); and the connecting layer (4) is covered by the UV coating layer (5) above.

3. The heat transfer film according to claim 2, wherein: The connecting layer (4) covers the surface of the fluorescent ink layer (3), the connecting layer (4) fills the recessed blocks (33) of the fluorescent ink layer (3), and the connecting layer (4) is higher than the fluorescent bumps (32) of the fluorescent ink layer (3), the surface of the connecting layer (4) is leveled to form a horizontal surface.

4. The heat transfer film according to claim 2, wherein: The side surface of the UV coating layer (5) is flush with the side surface of the connecting layer (4).

5. The heat transfer film according to claim 2, wherein: The connecting layer (4) is wrapped outside the fluorescent ink layer (3), and the horizontal surface of the connecting layer (4) has a size greater than that of the surface of the fluorescent ink layer (3).

6. The heat transfer film according to claim 2, wherein: The UV coating layer (5) covers the entire positioning graphic area (11) and the non-graphic area (12), that is, the UV coating layer (5) is wrapped outside the connecting layer (4) and the side surface is flush with the side surface of the base film layer (1), and the plane orientation of the UV coating layer (5) is consistent with that of the base film layer (1).

7. The heat transfer film according to claim 2, wherein: The connecting layer (4) covers the entire positioning graphic area (11) and the non-graphic area (12), that is, the connecting layer (4) is wrapped outside the fluorescent ink layer (3) and the side surface is flush with the side surface of the base film layer (1), and the plane orientation of the connecting layer (4) is consistent with that of the base film layer (1).

8. The heat transfer film according to claim 7, wherein: The upper surface of the connecting layer (4) is provided with a UV coating layer (5) with the same surface area; and the UV coating layer (5) is provided with a glue layer (6) with the same surface area above.

9. The heat transfer film according to claim 2, wherein: The connecting layer (4) is a resin adhesive layer.

10. The heat transfer film according to claim 1, wherein: The base film layer (1) adopts a PET film.

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