Tipping Paper Thermally Expandable Particles Structured Surface
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Solution Overview
Problem
Existing tipping papers for aerosol-generating consumer articles lack a structured design and efficient production methods, which limits their functionality and aesthetic appeal.
Innovation Solution
Incorporating thermally expandable particles into the substrate or print/coating of tipping paper, which expands upon heating to create a raised structure or elevation, thereby providing a structured surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a lacquer structure is applied to the tipping paper using conventional methods, then a structured surface is achieved, but a precise and complex application device is required
Solution Approach 1:
The patent changes the physical state of particles through thermal expansion. Thermally expandable particles are incorporated into the tipping paper substrate or coating, and when heated during the hotfoil process, these particles expand dramatically in volume, creating the desired structured surface relief without requiring complex application devices. The structure is formed by a phase/change in particle volume rather than by mechanical application of lacquer.
Solution Approach 2:
The patent replaces the mechanical lacquer application system with a thermal system. Instead of using precise mechanical application devices to deposit structured lacquer, the invention uses thermal energy to trigger the expansion of thermally expandable particles, which mechanically self-form the structured surface through volumetric expansion when exposed to heat during the hotfoil process.
2Shape
If thermally expandable particles are incorporated into the tipping paper, then a structured surface is created with enhanced functionality, but the manufacturing process requires additional heating steps
Solution Approach 1:
The patent merges the structuring function with the existing hotfoil manufacturing process. The heating step required to expand the thermally expandable particles is combined with the existing hotfoil lamination process, so that both the foil is applied and the particles are expanded in a single integrated operation, eliminating the need for separate structuring steps and maintaining productivity.
3Ease of manufacture
If the tipping paper remains flat without structure, then the production process is simple, but the aesthetic appeal and functionality are limited
Solution Approach 1:
The thermally expandable particles serve themselves by automatically expanding when exposed to the heat of the existing hotfoil process. No additional structuring equipment or complex manufacturing steps are required - the particles self-form the structured surface through their inherent thermal expansion property when the normal hotfoil heating occurs, thus maintaining simple manufacturing while achieving enhanced aesthetics and functionality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The use of thermally expandable particles allows for the creation of tactile and potentially visually distinguishable structures on the tipping paper, enhancing its functionality and aesthetic appeal without requiring complex machinery.
Implementation Method 1
the thermally expandable particles can be expanded by the action of heat to produce a raised structure or at least an elevation
Data Source
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AI summary
The invention relates to a tipping paper (1) which can be provided, using the effect of heat, with at least one protuberance (10), said tipping paper comprising thermally expandable particles which are provided in the substrate of the tipping paper (1) or in the form of an imprint or coating (2), said imprint or coating (2) being provided on the substrate of the tipping paper (1).