Micro-Embossed Metallic Tube Sleeve for Dynamic Recyclable Packaging

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Solution Overview

Problem

Existing packaging solutions for consumer products like toothpaste and lotions fail to convey a high-quality feel and are not recyclable, and existing decorations do not allow for dynamic, high-quality visual effects.

Innovation Solution

A tube with a micro-embossed metallic foil on the substrate layer, featuring a depth less than 20 µm and interlaced images, which is glued and micro-embossed to create a high-resolution, permanent pattern that changes with viewing angles, and is made from recyclable materials.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If printing or flat labels are used for decoration, then manufacturing is simple and cost-effective, but the quality feel is poor and recyclability is compromised

Engineering Contradiction:
Improvedecoration manufacturing simplicityVSAvoidquality feel and recyclability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent uses a composite structure consisting of a substrate layer and a metallic foil layer with micro-embossed pattern. This composite material approach combines the advantages of different materials: the substrate provides structural integrity and recyclability, while the metallic foil with micro-embossed pattern delivers high-quality visual effects and tactile feel, resolving the contradiction between manufacturing simplicity and quality feel.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent replaces traditional printing or labeling mechanical systems with a micro-embossed metallic foil system. The micro-embossed pattern creates dynamic visual effects through light reflection and refraction rather than through printed ink or adhesive labels, achieving superior quality feel while maintaining manufacturing efficiency and recyclability.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Illumination intensity

If metallized substrate or metallic film is applied to achieve attractive visual effects, then consumer appeal is enhanced, but the ability to display dynamic patterns that switch from one to another is limited

Engineering Contradiction:
Improvevisual attractivenessVSAvoiddynamic pattern switching capability
Core Design Contradiction:
Illumination intensityVSAdaptability or versatility

Solution Approach 1:

The patent applies dynamics by creating a micro-embossed pattern on the metallic foil that produces dynamic visual effects. The pattern appears to change and switch between different images depending on the viewing angle, transforming a static metallic surface into a dynamic display medium that enhances consumer appeal while maintaining adaptability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent introduces a new dimension to the metallic foil decoration by creating interlaced images through micro-embossing. This three-dimensional micro-relief structure enables the display of multiple patterns that switch based on viewing angle, adding temporal and spatial dimensions to what would otherwise be a static surface.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Illumination intensity

If micro embossed pattern with depth less than 20 μm is applied to metallic foil, then high-quality dynamic visual effects are achieved, but manufacturing precision requirements increase

Engineering Contradiction:
Improvedynamic visual effect qualityVSAvoidmicro embossing depth control
Core Design Contradiction:
Illumination intensityVSManufacturing precision

Solution Approach 1:

The patent optimizes the micro-embossed pattern depth parameter to be less than 20 μm. This specific parameter range is carefully selected to achieve the desired dynamic visual effects while balancing manufacturing precision requirements. The controlled depth ensures sufficient light interaction for visual appeal without excessive manufacturing complexity.

Inventive Principle:
Principle #35Parameter changes

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 solution provides an attractive, high-quality feel and dynamic visual effects while being recyclable, enhancing consumer appeal and maintaining environmental sustainability.

Implementation Method 1

the metallic foil is engraved by a micro embossed pattern which presents a depth less than 20 μm

Methodology Applied
Scientific EffectMicro embossing: Deformation

Implementation Method 2

the metallic foil is glued on the substrate layer

Methodology Applied
Scientific EffectAdhesion: Adhesive

Implementation Method 3

the micro embossed pattern comprises several interlaced images, each of which is apparent from different viewing angles

Methodology Applied
Scientific EffectLight reflection: Reflection

Implementation Method 4

the micro embossed pattern comprises several interlaced images, each of which is apparent from different viewing angles

Methodology Applied
Scientific EffectLight refraction: Refraction

Data Source

PatentEP4678555A1Tube comprising a micro embossed metallic foil and methods for manufacturing said tube
Publication Date: 2026.01.14 ALBEA SERVICES SAS
  • EP4678555A1 patent drawingFigure 1
  • EP4678555A1 patent drawingFigure 2
  • EP4678555A1 patent drawingFigure 3

AI summary

Tube (10) comprising a tube head (12) and a tube sleeve (14) extending along a main axis (A), the tube sleeve (14) comprising: - a substrate layer (24), and - a metallic foil (26) comprising a metallic layer (26A) arranged at least locally on an external face of the substrate layer (24) and forming locally the most external layer of the sleeve (14); wherein the metallic foil (26) is engraved by a micro embossed pattern (30) which presents a depth less than 20 µm.