Composite Cleaning Pad Structure for Low-Water Surface Care

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Solution Overview

Problem

Conventional liquid detergents for surface cleaning are inefficient in removing soil and residues, requiring additional implements that lead to clutter, increased water consumption, and higher carbon footprints due to additional steps and waste generation.

Innovation Solution

A home care article comprising a compliant cleansing composition with a high weight percentage, surrounded by water penetrable and insoluble substrates that conform to surfaces, allowing for effective cleaning with reduced water consumption and reusability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If liquid detergents are used with additional implements (sponges, brushes), then cleaning effectiveness is improved, but device complexity and clutter increase

Engineering Contradiction:
Improvecleaning effectivenessVSAvoidnumber of implements
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the cleansing composition and the substrate into a single integrated home care article. The substrate is impregnated with the cleansing composition, eliminating the need for separate bottles and implements. This merging resolves the technical contradiction by maintaining cleaning effectiveness while reducing device complexity and clutter.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If liquid detergents are applied with implements, then cleaning performance is enhanced, but water consumption increases

Engineering Contradiction:
Improvecleaning performanceVSAvoidwater consumption
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

The cleansing composition is pre-applied to the substrate during manufacturing, eliminating the need for consumers to separately apply liquid detergent. The substrate is pre-impregnated with the optimal amount of cleanser, which is then released during use. This preliminary action reduces water consumption while maintaining cleaning performance.

Inventive Principle:
Principle #10Preliminary action

3Strength

If rigid substrates are used in home care articles, then structural integrity is improved, but conformability to surfaces deteriorates

Engineering Contradiction:
Improvestructural integrityVSAvoidconformability to surfaces
Core Design Contradiction:
StrengthVSAdaptability or versatility

Solution Approach 1:

The patent employs a flexible substrate that can conform to various surface shapes while maintaining sufficient structural integrity. The substrate is designed with appropriate flexibility to adapt to different cleaning surfaces (countertops, sinks, dishes) while still providing the necessary strength to handle and apply the cleansing composition effectively.

Inventive Principle:
Principle #30Flexible shells and thin films

4Adaptability or versatility

If conformable substrates are used to improve surface adaptation, then adaptability is improved, but reusability and durability deteriorate

Engineering Contradiction:
Improvesurface conformabilityVSAvoidreusability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent uses a composite structure where a flexible substrate is combined with a cleansing composition formulated for controlled dissolution. The substrate provides conformability while the composition is designed to dissolve at an appropriate rate during use. This composite approach maintains reusability by ensuring the substrate remains intact while the cleanser is gradually released, resolving the contradiction between conformability and durability.

Inventive Principle:
Principle #40Composite materials

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 enhances cleaning efficiency, reduces clutter and waste, and promotes sustainability by allowing the cleansing composition to conform to surfaces, thereby improving cleaning performance while minimizing environmental impact.

Implementation Method 1

a water penetrable first substrate adjacent to the composition

Methodology Applied
Scientific EffectWater penetration: Permeation

Data Source

PatentEP2693929B1Home care article
Publication Date: 2018.09.12 PROCTER & GAMBLE CO
  • EP2693929B1 patent drawingFigure 1~2
  • EP2693929B1 patent drawingFigure 3A~3B
  • EP2693929B1 patent drawingFigure 4~5B

AI summary

A home care article (10) comprising a cleansing composition (14) having a first side (18) and a second side (20); a first substrate (22) adjacent to the first side (18) of the cleansing composition (14); a second substrate (24) adjacent to the second side (20) of the cleansing composition (14); a first water insoluble substrate (26) adjacent to the first substrate (22), and a second water insoluble substrate (28) adjacent to the second substrate (24).