Multi-Chamber Detergent Pouch with Amylase for Pre-Wash
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Solution Overview
Problem
Existing automatic dishwashing detergent pouches are inactive during the pre-wash stage of the dishwashing cycle, limiting the opportunity for enhanced cleaning performance, as the detergent chemistry is only released during the main-wash stage.
Innovation Solution
A multi-chambered automatic dishwashing detergent pouch with a water-soluble film design, where one chamber is placed in the dispenser drawer and another chamber hangs outside, allowing detergent ingredients, such as amylase, to be active during both the pre-wash and main-wash stages, enabling targeted formulation strategies for improved cleaning performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the detergent pouch is designed as a single chamber enclosed in a water-soluble film, then the structure is simple and easy to manufacture, but the detergent chemistry remains inactive during the pre-wash stage and only becomes active during the main-wash stage
Solution Approach 1:
The pouch is divided into two separate chambers: a first chamber placed in the dispenser drawer and a second chamber hanging outside the drawer. This segmentation allows different detergent chemistries to be activated at different stages of the washing cycle, with the first chamber releasing detergent during the main-wash stage and the second chamber releasing detergent during the pre-wash stage, thereby improving overall cleaning performance without significantly increasing structural complexity
Solution Approach 2:
The second chamber is positioned to hang outside the dispenser drawer, allowing its detergent chemistry to be released during the pre-wash stage before the main-washing step. This preliminary action enables stain removal preparation to occur in advance, improving cleaning effectiveness by addressing soils before the main wash cycle begins
2Productivity
If the pouch is designed with two separate chambers connected by water-soluble film, then detergent chemistry can be active during both pre-wash and main-wash stages, but the device complexity increases
Solution Approach 1:
The first chamber and second chamber are connected by a linking portion of water-soluble film, merging them into a single integrated pouch structure. This combining approach allows both chambers to function together as one unit while maintaining separate detergent release mechanisms, achieving improved cleaning performance without requiring completely separate pouches or complex multi-component systems
Solution Approach 2:
The water-soluble film serves multiple functions: it encloses both chambers, connects them together, and controls the release of detergent chemistry at different stages. This multi-functionality reduces the need for additional structural elements, maintaining relative simplicity while enabling dual-stage detergent activation for improved cleaning performance
3Ease of operation
If the linking portion of water-soluble film is made longer, then the second chamber can hang outside the dispenser drawer more effectively, but the amount of water-soluble film material increases
Solution Approach 1:
The linking portion of water-soluble film is made sufficiently long to allow the second chamber to hang outside the dispenser drawer effectively, providing the necessary operational flexibility. While this does increase the amount of film material used, the increase is minimal and acceptable given the significant improvement in pouch positioning and detergent release effectiveness during the pre-wash stage
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
This design enhances the dishwashing cycle performance by allowing specific detergents to be active during both stages, particularly improving stain removal, especially for baked cheese stains, while maintaining a consumer-friendly single-pouch product.
Implementation Method 1
a water-soluble film that forms at least two separate chambers that are enclosed by water-soluble film
Implementation Method 2
the second chamber comprises an amylase
Data Source
AI summary
An automatic dishwashing detergent water-soluble pouch includes a water-soluble film that forms at least two separate chambers that are enclosed by water-soluble film. The separate chambers are: a first chamber; and a second chamber. The first chamber is connected to the second chamber by a linking portion of water-soluble film, the length of the linking portion of water-soluble film between the first chamber and second chamber is at least 0.5 cm, the first chamber and second chamber include detergent ingredients, and the second chamber includes an amylase.