Cartridge for a water-bearing household appliance
A low-specific-heat-capacity cartridge with multiple chambers addresses thermal instability issues in dishwashers and washing machines, maintaining enzyme activity and reducing costs by minimizing insulation, thus enhancing thermal stability and efficiency.
DE102010002196B4Active Publication Date: 2026-06-18HENKEL KGAA
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- HENKEL KGAA
- Filing Date
- 2010-02-22
- Publication Date
- 2026-06-18
AI Technical Summary
Technical Problem
Existing dosing devices for dishwashers and washing machines face challenges in maintaining the thermal stability of heat-sensitive ingredients like enzymes due to insulation requirements, which increase size and cost, and existing insulation methods are inefficient.
Method used
A cartridge design with low specific heat capacity and quick heat transfer properties, featuring multiple chambers with specific volume and thickness ratios, allows for enzyme storage with minimal insulation, ensuring enzyme activity and reducing manufacturing costs.
Benefits of technology
The cartridge maintains enzyme activity within household appliances by minimizing insulation needs, reducing size and cost, while ensuring thermal stability and efficient enzyme performance.
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Smart Images
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Abstract
Cartridge (1), in particular for use in water-bearing household appliances, comprising an enzyme-containing preparation which includes at least one enzyme protein and has a specific heat capacity cp at 20°C of less than 3.8 J / (g·K), preferably less than 3.0 J / (g·K), and which is stored in a cartridge or cartridge chamber (3a, 3b, 3c) with a filling volume between 20 and 500 ml and an average wall thickness between 0.1 and 2 mm, and the cartridge material has a specific heat capacity cp at 20°C of between 1 and 2 J / (g·K), preferably between 1.15 and 1.9 J / (g·K), particularly preferably between 1.5 and 1.8 J / (g·K).
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