Heat-sublimable film

TWI937708BActive Publication Date: 2026-09-01CHANCE LINE IND CO LTD
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Patent Information

Application Number
TW114104898
Authority / Receiving Office
TW · TW
Patent Type
Patents
Current Assignee / Owner
Filing Date
2025-02-10
Publication Date
2026-09-01
Estimated Expiration
2045-02-09

Smart Images

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    Figure TWG2TB001908696_003
Patent Text Reader

Abstract

A thermally sublimable film material comprises: a base layer, on which an adhesive layer, a high-temperature barrier layer, and an ink bonding layer are sequentially disposed, wherein the ink bonding layer is a polymer containing polyester. Wherein, when thermally sublimated ink sublimates to the ink bonding layer of the film material, it bonds with the polyester in the ink bonding layer, enabling the thermally sublimated ink to develop color and giving the pattern of the thermally sublimated ink a bright and vibrant color.
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Claims

1. A thermally sublimable membrane material comprising: a base layer having release properties; an adhesive layer disposed on the base layer; a high-temperature barrier layer disposed on the adhesive layer, capable of withstanding a temperature higher than that at which the adhesive layer becomes sticky when heated, preventing the adhesive layer from passing through the high-temperature barrier layer; and an ink bonding layer disposed on the high-temperature barrier layer, wherein the ink bonding layer is a polymer containing polyester components.

2. The membrane material as described in claim 1, wherein: The ink bonding layer is a resin layer containing polyester powder.

3. The membrane material as described in claim 2, wherein: The ink bonding layer is made of polyurethane.

4. The membrane material as described in claim 1, wherein: The ink bonding layer is a polyester polymer containing ester groups (-COOR) in its structure.

5. The membrane material as described in claim 4, wherein: The ink bonding layer is made of polyethylene terephthalate (PET), polybutylene terephthalate (PBT), or thermoplastic elastomer (TPEE).

6. The membrane material as described in claim 1, wherein: The adhesive layer is a hot melt adhesive that, when heated and becomes tacky, has a peel strength between 20 g and 150 g / 1 inch width and the substrate.

7. The membrane material as described in claim 1, wherein: This high-temperature barrier layer can withstand temperatures above 170°C.

8. The membrane material as described in claim 1, wherein: The high-temperature barrier layer is made of high-temperature resistant thermoplastic polyurethane (TPU), polyurethane (PU), or polyester (PET).

9. The membrane material as described in claim 1 or 8, wherein: The adhesive layer is made of hot melt adhesive or pressure-sensitive adhesive.

10. The membrane material as described in claim 9, wherein: The hot melt adhesive is an ethylene-vinyl acetate copolymer (EVA) hot melt adhesive, a polyphenylene ether (PES) hot melt adhesive, or a thermoplastic polyurethane (TPU) hot melt adhesive.

11. The membrane material as described in claim 2, wherein: The polyester powder is reflective.

12. The membrane material as described in claim 1, wherein: The ink bonding layer or the high-temperature barrier layer contains aluminum powder or pearlescent powder.

Citation Information

Patent Citations

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