A heat-insulating and anti-scalding coffee cup without plastic and a preparation method thereof

By combining a hollow-layered cup body with a trigger-activated self-heating cup sleeve, the problems of hot outer walls and poor heat retention in coffee cups are solved. This design achieves heat insulation on the outer wall and controllable internal temperature, thus improving the user experience of coffee cups.

CN122229295APending Publication Date: 2026-06-19GEOTEGRITY ENVIRONMENTAL PROTECTION TECH XIAMEN CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
GEOTEGRITY ENVIRONMENTAL PROTECTION TECH XIAMEN CO LTD
Filing Date
2026-03-09
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing coffee cups have excessively high outer wall temperatures when filled with hot coffee, making them inconvenient to handle, with poor heat retention and rapid heat loss, thus affecting the drinking experience.

Method used

It adopts a combination design of hollow partition cup body, temperature-sensitive color-changing strip and trigger-type self-heating cup sleeve. The hollow partition blocks heat conduction, the temperature-sensitive color-changing strip indicates the temperature, and the trigger-type self-heating cup sleeve activates the heating material through the protrusion structure to maintain a suitable temperature.

Benefits of technology

It ensures that the outer wall of the cup is not hot to the touch, the temperature indication is accurate, and the coffee is kept at a suitable drinking temperature, improving ease of use and heat preservation effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides a heat-insulating, scalding-proof, and heat-preserving plastic-free coffee cup and its preparation method. The cup includes a hollow cup body with a long, strip-shaped thermochromic stripe attached along its height to indicate the temperature of the liquid inside. A trigger-activated self-heating cup sleeve is detachably fitted onto the outside of the cup body. The trigger-activated self-heating cup sleeve includes a sleeve body with a receiving cavity. Within the receiving cavity of the sleeve body, there is an upper water storage layer and a lower heating material layer. A sealing membrane is provided between the upper water storage layer and the lower heating material layer. When a piercing structure punctures the upper water storage layer and the sealing membrane, water in the upper water storage layer enters the lower heating material layer, thereby igniting the heating material in the lower heating material layer. This invention uses a cup body with a hollow cavity and an thermochromic stripe attached to the cup body to indicate the temperature of the liquid inside, achieving a heat-insulating and scalding effect. Simultaneously, the trigger-activated self-heating cup sleeve on the outside of the cup provides heat preservation.
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