Anti-sublimation reflective thermal film
By introducing an anti-sublimation microcapsule foam layer into the reflective heat-sealing film, alkaline substances are used to prevent dye sublimation, thus solving the problem of uneven color caused by dye sublimation in clothing and achieving uniformity and colorfastness of the reflective heat-sealing film.
Patent Information
- Application Number
- CN202520142181.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-21
AI Technical Summary
When existing reflective heat-adhesive films are used on dark or brightly colored clothing, the dyes tend to sublimate, resulting in uneven color and affecting the performance.
The anti-sublimation microcapsule foam layer is made of more than 100μm and contains alkaline substances in the foam pores to prevent the movement of dye molecules and prevent the dye from reaching the composite layer. It combines with the alkaline substances to form a macromolecular structure and prevent further color change.
It effectively prevents dye sublimation, maintains the color uniformity of reflective heat-sealing film, avoids color changes and discoloration, and improves the performance.
Smart Images
Figure CN223870847U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of reflective film technology, specifically relating to an anti-sublimation reflective heat-adhesive film. Background Technology
[0002] Reflective heat-adhesive films are often used to mark clothing. However, since clothing dyes are generally acidic, when reflective heat-adhesive films are applied to clothing fabrics, especially dark or brightly colored fabrics, the color from the fabric will transfer to the reflective heat-adhesive film, resulting in uneven coloring and affecting the use of the reflective heat-adhesive film. Utility Model Content
[0003] The purpose of this invention is to propose an anti-sublimation reflective heat transfer film to solve the problem that existing reflective heat transfer films are prone to dye sublimation during use.
[0004] Therefore, this utility model provides an anti-sublimation reflective heat-adhesive film, comprising a reflective beaded film, an anti-sublimation microcapsule foam layer, and a hot melt adhesive layer, wherein the anti-sublimation microcapsule foam layer is located between the reflective beaded film and the hot melt adhesive layer.
[0005] Preferably, the thickness of the anti-sublimation microcapsule foam layer is greater than 100 μm.
[0006] Preferably, the material of the anti-sublimation microcapsule foam layer is polyurethane.
[0007] Preferably, the anti-sublimation microcapsule foam layer has foam pores filled with an alkaline substance.
[0008] Preferably, the foaming porosity of the anti-sublimation microcapsule foam layer is greater than 1%.
[0009] Preferably, the foaming pore size of the anti-sublimation microcapsule foaming layer is less than 50 μm.
[0010] Preferably, the material of the hot melt adhesive layer is thermoplastic polyurethane, copolyester, polyamide, or polyolefin.
[0011] Preferably, the reflective beaded film comprises, from top to bottom, a glass microsphere layer, a thin adhesive layer, and a coating layer.
[0012] Preferably, a protective film is disposed on the top of the glass microsphere layer.
[0013] Preferably, a composite adhesive layer is provided between the reflective beaded film and the anti-sublimation microcapsule foaming layer.
[0014] Beneficial effects:
[0015] 1. This utility model provides an anti-sublimation reflective heat-adhesive film, which separates the composite layer and the hot melt adhesive layer through an anti-sublimation microcapsule foam layer. The anti-sublimation microcapsule foam layer is relatively thick and has foam pores inside. After the dye sublimates, it first enters the anti-sublimation microcapsule foam layer and then enters the foam pores, where it combines with the alkaline substances in the foam pores to form a larger molecular structure, preventing further molecular movement of the acid dye and preventing it from reaching the composite layer and causing color change or discoloration. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of an embodiment 1 of the anti-sublimation reflective heat-adhesive film provided by this utility model.
[0018] In the diagram, 1-protective film, 2-glass microsphere layer, 3-thin adhesive layer, 4-coating layer, 5-composite adhesive layer, 6-anti-sublimation microcapsule foaming layer, and 7-hot melt adhesive layer. Detailed Implementation
[0019] The following detailed description of preferred embodiments of the present invention, along with the included examples, will make the content of the present invention more readily understood. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. In case of any conflict, the definitions in this specification shall prevail.
[0020] Example 1:
[0021] Provided such as Figure 1 The illustrated anti-sublimation reflective heat-adhesive film includes: a reflective beaded film, an anti-sublimation microcapsule foam layer 6, and a hot-melt adhesive layer 7, with the anti-sublimation microcapsule foam layer 6 positioned between the reflective beaded film and the hot-melt adhesive layer 7. The reflective beaded film comprises, from top to bottom, a glass microbead layer 2, a thin adhesive layer 3, and a coating layer 4. A protective film 1 is disposed above the glass microbead layer 2. A composite adhesive layer 5 is disposed between the reflective beaded film and the anti-sublimation microcapsule foam layer 6. The composite adhesive layer 5 is colored to reflect the color of the reflective heat-adhesive film. The anti-sublimation microcapsule foam layer 6 intercepts sublimated dye molecules, preventing them from reaching the composite adhesive layer 5, thus allowing the color of the composite adhesive layer 5 to be displayed normally.
[0022] The thickness of the anti-sublimation microcapsule foam layer 6 is greater than 100 μm, for example, optionally 100 μm, 200 μm, 300 μm, or 400 μm, and more preferably greater than 300 μm. The material of the anti-sublimation microcapsule foam layer 6 is polyurethane. The anti-sublimation microcapsule foam layer 6 has foam pores filled with an alkaline substance, specifically dimethylformamide. The foam porosity of the anti-sublimation microcapsule foam layer 6 is greater than 1%, for example, optionally 10%, 20%, 30%, or 40%, and more preferably greater than 1% and less than 30%. The pore size of the anti-sublimation microcapsule foam layer 6 is less than 50 μm. After the dye sublimates, it first enters the anti-sublimation microcapsule foaming layer 6 and then enters the foaming pores. It combines with the alkaline substances in the foaming pores to form a larger molecular structure, preventing the acid dye from further molecular movement and thus preventing it from reaching the composite layer and causing color changes or discoloration.
[0023] The hot melt adhesive layer 7 is made of thermoplastic polyurethane, copolyester, polyamide, or polyolefin.
[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A sublimation-resistant reflective heat-adhesive film, characterized in that, It includes a reflective beaded film, an anti-sublimation microcapsule foam layer, and a hot melt adhesive layer, wherein the anti-sublimation microcapsule foam layer is located between the reflective beaded film and the hot melt adhesive layer.
2. The anti-sublimation reflective heat-adhesive film according to claim 1, characterized in that, The thickness of the anti-sublimation microcapsule foam layer is greater than 100 μm.
3. The anti-sublimation reflective heat-adhesive film according to claim 1, characterized in that, The material of the anti-sublimation microcapsule foam layer is polyurethane.
4. The anti-sublimation reflective heat-adhesive film according to claim 3, characterized in that, The anti-sublimation microcapsule foam layer has foam pores filled with an alkaline substance.
5. The anti-sublimation reflective heat-adhesive film according to claim 4, characterized in that, The foaming porosity of the anti-sublimation microcapsule foam layer is greater than 1%.
6. The anti-sublimation reflective heat-adhesive film according to claim 4, characterized in that, The foaming pore size of the anti-sublimation microcapsule foaming layer is less than 50 μm.
7. The anti-sublimation reflective heat-adhesive film according to claim 1, characterized in that, The material of the hot melt adhesive layer is thermoplastic polyurethane, copolyester, polyamide, or polyolefin.
8. The anti-sublimation reflective heat-adhesive film according to claim 1, characterized in that, The reflective beaded film comprises, from top to bottom, a glass microsphere layer, a thin adhesive layer, and a coating layer.
9. The anti-sublimation reflective heat-adhesive film according to claim 8, characterized in that, A protective film is provided on the top of the glass microsphere layer.
10. The anti-sublimation reflective heat-adhesive film according to claim 8, characterized in that, A composite adhesive layer is provided between the reflective beaded film and the anti-sublimation microcapsule foaming layer.