Step-Shaped Chamber Wall Design for Cleaning Agent Portion Units

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Solution Overview

Problem

Multi-chamber cleaning agent portion units consume more packaging material and have unfavorable movement behavior in washing machines, leading to incomplete dissolution and residue issues due to their large size and design.

Innovation Solution

A single-chamber portion unit with a step-shaped chamber wall design, allowing the cleaning agent composition to flow freely between main and secondary volumes, providing a modern appearance while reducing material consumption and improving solubility and handling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multi-chamber systems are used to provide modern appearance and appealing design, then consumer appeal is improved, but packaging material consumption increases by 10 to 50%

Engineering Contradiction:
Improveconsumer appealVSAvoidpackaging material consumption
Core Design Contradiction:
Adaptability or versatilityVSLoss of substance

Solution Approach 1:

The chamber is divided into a main volume and at least one secondary volume, creating a multi-chamber-like appearance while using a single continuous film structure. This segmentation provides the modern appealing design consumers prefer while avoiding the need for multiple separate chambers that would require additional sealing film.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple chamber functions are merged into a single chamber structure with internal volume divisions. The main volume and secondary volume are separated by a step-shaped chamber wall rather than complete physical separation, combining the aesthetic benefits of multi-chamber designs with the material efficiency of single-chamber construction.

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If multi-chamber systems with chambers arranged next to one another are used, then modern design is achieved, but the portion units become comparatively large and show unfavorable movement behavior in washing machines

Engineering Contradiction:
Improvemodern designVSAvoidmovement behavior in washing machine
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The single chamber is segmented into main and secondary volumes with different heights, creating visual interest and modern appearance while maintaining a compact overall footprint. This prevents the portion unit from becoming too large and ensures favorable movement behavior in the washing machine.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Instead of arranging multiple chambers side-by-side horizontally, the invention creates volume differentiation vertically through the step-shaped chamber wall. The secondary volume extends higher than the main volume, achieving modern design aesthetics while maintaining a compact horizontal profile that moves favorably in washing machines.

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

3Adaptability or versatility

If multi-chamber systems are used, then appealing design is provided, but film packaging dissolution is delayed and residues remain in cleaning liquor

Engineering Contradiction:
Improveappealing designVSAvoiddissolution time
Core Design Contradiction:
Adaptability or versatilityVSDuration of action of moving object

Solution Approach 1:

The chamber wall is formed from a single continuous water-soluble film without multiple sealing seams required by multi-chamber systems. This thin film structure dissolves more rapidly and completely in washing machine water, preventing residues while maintaining the appealing multi-chamber-like appearance through the step-shaped internal wall structure.

Inventive Principle:
Principle #30Flexible shells and thin films

4Loss of substance

If single-chamber systems are used, then packaging material consumption is reduced, but the design appears less modern and appealing to consumers

Engineering Contradiction:
Improvepackaging material consumptionVSAvoiddesign appeal
Core Design Contradiction:
Loss of substanceVSAdaptability or versatility

Solution Approach 1:

The single chamber is visually segmented into main and secondary volumes through the step-shaped chamber wall, creating the modern multi-chamber appearance that consumers prefer. This segmentation is achieved without physical separation, maintaining material efficiency while delivering aesthetic appeal.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention adds vertical dimensionality to the single chamber through the step-shaped wall creating a secondary volume that extends higher than the main volume. This three-dimensional differentiation provides modern design appeal while avoiding the material consumption of traditional multi-chamber systems.

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

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 results in lower material consumption comparable to single-chamber systems, faster solubility, and reduced residue issues, ensuring effective release of the cleaning agent during washing cycles.

Implementation Method 1

the water-soluble packaging then dissolves in the essentially water-based cleaning liquor and the cleaning agent is released

Methodology Applied
Scientific EffectDissolution: Solvation

Implementation Method 2

the cleaning agent composition being free of the main volume into which at least one secondary volume can enter and vice versa

Methodology Applied
Scientific EffectFluid flow:

Data Source

PatentEP3807390B1Portion unit of a cleaning agent
Publication Date: 2023.11.01 HENKEL KGAA
  • EP3807390B1 patent drawingFigure 1~2
  • EP3807390B1 patent drawingFigure 3~4c
  • EP3807390B1 patent drawingFigure 4d~4e

AI summary

The invention relates to a portion unit (1) of a cleaning agent, comprising a cleaning agent composition and a chamber (2) which receives the cleaning agent composition and comprises a chamber wall (3) that delimits the chamber and has a layer thickness D. The chamber (2) comprises a main volume (4) and at least one auxiliary volume (5, 6, 7, 12, 13), and the cleaning agent composition can freely enter the at least one auxiliary volume (5, 6, 7, 12, 13) from the main volume (4) and vice versa, wherein the chamber wall (3) is formed in a transition region (A) between the main volume (4) and the at least one auxiliary volume (5, 6, 7, 12, 13) in a substantially stepped manner. The invention additionally relates to a method for producing such a portion unit.