Electromagnetic induction self-heating cigarette paper and aerosol generating product

The self-heating cigarette paper with a multi-layer structure addresses uneven heating in heat-not-burn devices by increasing the heating area and uniformity of aerosol-generating substrates through radial heat transfer and insulation, improving heating efficiency and consistency.

EP4759152A1Pending Publication Date: 2026-06-17HUMBLE GRACE LTD
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
HUMBLE GRACE LTD
Filing Date
2024-04-01
Publication Date
2026-06-17

AI Technical Summary

Technical Problem

Existing heat-not-burn devices suffer from uneven heating of aerosol-generating substrates due to a small heating surface area, leading to insufficient heating at the periphery and overheating at the center.

Method used

A self-heating cigarette paper for electromagnetic induction with a multi-layer structure comprising a substrate layer, induction heating layer, package layer, and thermal insulation layer, designed to increase the heating area and uniformity of aerosol-generating substrates through radial heat transfer and insulation.

Benefits of technology

The solution enhances heating uniformity and efficiency by increasing the heating area and reducing temperature differences within the aerosol-generating substrate, while minimizing heat loss and maintaining consistent operation of the smoking set.

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Abstract

Provided are self-heating cigarette paper for electromagnetic induction and an aerosol-generating article. The self-heating cigarette paper for electromagnetic induction includes a substrate layer, an induction heating layer, a package layer, and a thermal insulation layer. A front surface of the substrate layer faces an aerosol substrate, and a back surface of the substrate layer faces away from the aerosol-generating substrate. The induction heating layer is laminated on the front surface of the substrate layer to heat the aerosol substrate. The package layer is attached to a side of the induction heating layer facing away from the substrate layer to prevent the induction heating layer from falling off the substrate layer. The thermal insulation layer is bonded to the back surface of the substrate layer to limit heat from the induction heating layer within a packaging structure enclosed by the self-heating cigarette paper.
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