Hot air shrink tunnel for heat shrinking a shrink label, method for heat shrinking a shrink label, and heat shrinking apparatus for heat shrinking a shrink label
Patent Information
- Application Number
- EP2022793469
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2022-03-16
- Filing Date
- 2022-10-14
- Publication Date
- 2025-01-22
AI Technical Summary
Existing heat shrinking methods for shrink labels face challenges such as energy inefficiency, product wetness, and limitations in applying to non-regular surfaces, particularly with hot air tunnels and steam tunnels, which require fossil energy and result in wet products or high energy consumption.
A hot air shrink tunnel with a moist air zone and a dry air zone, where the moist air zone generates an air-steam mixture through heating and water diffusion, and the dry air zone uses heating to achieve efficient heat transfer, reducing energy consumption and ensuring a dry product, while accommodating non-regular surfaces with adjustable nozzle modules and controlled humidity.
This solution reduces energy consumption by 65% and water usage by 75% compared to classical steam tunnels, provides dry products, and simplifies the design for self-sufficiency, effectively shrinking labels on containers with reduced maintenance needs.
Smart Images
Figure 1.1