Detergent Portion Unit Gel Body Coating Adhesion
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Solution Overview
Problem
Current cleaning agent portion units face challenges with hygroscopic water-soluble packaging materials that lead to adhesion issues, limited fragrance effectiveness, non-washing active packaging, and a trade-off between mechanical stability and dissolution rate, particularly in cold washing processes.
Innovation Solution
A cleaning agent portion unit comprising a dimensionally stable gel body with a specific coating substance that partially covers the gel, optimizing the volume and weight distribution of surfactants, solvents, and washing active ingredients, and using a water-soluble coating substance to enhance handling and aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If water-soluble packaging material is used to package detergent portion units, then the packaging is biodegradable and dissolves in water, but the hygroscopic nature of the packaging material causes portion units to adhere to surfaces and stick together during storage and conveyance
Solution Approach 1:
The invention divides the portion unit into two distinct components: a water-soluble packaging shell and a water-insoluble coating layer. This segmentation allows the shell to provide biodegradability while the coating layer prevents adhesion, as the hydrophobic coating creates a barrier that reduces moisture absorption and sticking between portion units during storage.
2Speed
If the thickness of water-soluble film material is reduced to accelerate dissolution in cold-wash processes, then the dissolution rate increases, but the mechanical stability of the portion units decreases
Solution Approach 1:
The invention creates a composite structure where a thin water-soluble film shell is combined with a water-insoluble coating layer. The thin shell enables rapid dissolution in cold water, while the coating layer provides the necessary mechanical strength and structural integrity. This composite approach allows the portion unit to maintain stability during handling and storage yet dissolve quickly when exposed to water.
3Loss of substance
If water-soluble packaging material is used, then packaging can be minimized for sustainability, but the packaging material does not contribute to washing or cleaning performance
Solution Approach 1:
The invention makes the coating layer multi-functional by designing it to provide both protective functions (preventing adhesion and providing mechanical strength) and cleaning functions (contributing to washing performance). The coating layer contains surfactants and other cleaning agents that are released during the washing process, allowing it to serve dual purposes: structural protection during storage and active cleaning during use.
4Ease of manufacture
If fragrance is added to detergent portion units with water-soluble packaging, then product appeal is enhanced, but the fragrance effectiveness is limited due to the portion size and packaging
Solution Approach 1:
The invention concentrates fragrance components in the water-insoluble coating layer rather than distributing them throughout the entire portion unit. This local concentration ensures that the fragrance is effectively delivered during the washing process, as the coating layer dissolves and releases the concentrated aromatic substances directly onto the dishes, overcoming the limitation of small portion sizes.
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 improved product and storage stability, reduced packaging usage, enhanced fragrance perception, and balanced mechanical stability and dissolution rate, ensuring effective cleaning performance and consumer convenience.
Implementation Method 1
a gelling agent in weight proportions below 5 wt.%
Implementation Method 2
The water absorption capacity and tendency of the packaging material to absorb water during production, packaging, storage, and subsequent use by the consumer
Data Source
AI summary
Detergent portioning unit comprising a) a dimensionally stable gel body b) a coating substance in the form of a molded body, which partially covers the surface of the dimensionally stable gel body, wherein i) the gel body comprises 20 to 45 vol% of the detergent dosing unit, and ii) the gel body, based on its total weight, contains - a maximum of 30 wt% surfactant, - 50 to 80 wt% solvent, - a gelling agent in proportions below 5 wt%, iii) the coating substance, based on its total weight, contains - at least 80 wt% washing or cleaning active ingredient, methods for its manufacture and cleaning methods using these detergent portioning units.