Effervescent Germicidal Tablets for Compact Surface Disinfection

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Solution Overview

Problem

Existing cleaning and disinfecting compositions for hard surfaces, such as toilet bowls, face challenges with liquid products being heavy and requiring special storage, while tablet and powder products have bulk capacity issues and inadequate germicidal activity against bacteria like Enterococcus hirae, Escherichia Coli, and Pseudomonas aeruginosa.

Innovation Solution

Effervescent solid compositions in the form of compressed tablets containing an effervescing component, a germicidal agent, and a non-ionic surfactant, without anionic surfactants, which generate a stable foam for effective disinfection, reducing bacterial load by at least 2 to 5 logarithmic scales.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If liquid disinfecting products are used, then germicidal activity is provided, but weight and storage difficulty increase

Engineering Contradiction:

Improvegermicidal activityVSAvoidweight

Core Design Contradiction:

ReliabilityVSWeight of moving object

Solution Approach 1:

The invention changes the physical state parameter from liquid to solid (compressed tablet) form, reducing weight while maintaining germicidal activity through the effervescent composition that releases active ingredients upon contact with water

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The invention extracts the essential germicidal function from the liquid carrier and concentrates it in a compressed solid form, removing excess weight while preserving the active germicidal components through controlled release mechanisms

Inventive Principle:

Principle #2Taking out (Extraction)

2Reliability

If liquid disinfecting products are used, then germicidal activity is provided, but storage space requirements increase

Engineering Contradiction:

Improvegermicidal activityVSAvoidstorage space

Core Design Contradiction:

ReliabilityVSVolume of stationary object

Solution Approach 1:

The invention changes the physical state from liquid to solid compressed tablet form, dramatically reducing storage volume while maintaining the same germicidal functionality through efficient formulation

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The invention uses composite material structure in the compressed tablet combining germicidal agents, effervescent components, and surfactants in a space-efficient solid form that releases active ingredients upon water contact

Inventive Principle:

Principle #40Composite materials

3Volume of stationary object

If tablet or powder effervescent cleaning compositions are used, then storage space is reduced, but bulk capacity and special storage capabilities are required

Engineering Contradiction:

Improvestorage spaceVSAvoidstorage capabilities

Core Design Contradiction:

Volume of stationary objectVSDevice complexity

Solution Approach 1:

The invention optimizes the physical parameters of the compressed tablet including density, hardness, and effervescent characteristics to achieve compact storage without requiring special storage capabilities while maintaining effective dissolution and germicidal performance

Inventive Principle:

Principle #35Parameter changes

4Ease of manufacture

If existing effervescent formulations are used, then cleaning action is provided, but comprehensive antimicrobial activity against multiple bacteria is insufficient

Engineering Contradiction:

Improvecleaning actionVSAvoidantimicrobial activity

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The invention employs a composite formulation combining multiple germicidal agents with different spectral activities, effervescent components, and surfactants to achieve comprehensive antimicrobial coverage against multiple bacteria while maintaining ease of manufacture through standardized compression processes

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The invention merges multiple functional components into a single compressed tablet formulation, combining cleaning agents, germicidal agents, and effervescent components to achieve both cleaning action and comprehensive antimicrobial activity simultaneously

Inventive Principle:

Principle #5Merging (Combining)

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 compositions provide superior germicidal activity, forming a stable foam that effectively reduces bacterial loads on hard surfaces by 3 to 5 logarithmic scales, offering a convenient and efficient cleaning solution.

Implementation Method 1

Effervescent solid compositions in the form of compressed tablets containing an effervescing component

Methodology Applied

Scientific EffectEffervescence: Bubble

Implementation Method 2

a surfactant selected from the group consisting of non-ionic surfactants, amphoteric surfactants, cationic surfactants, zwitterionic surfactants

Methodology Applied

Scientific EffectSurfactant action: Surfactant

Data Source

PatentUS20250275534A1Effervescent germicidal compositions

Publication Date: 2025.09.04 RECKITT & COLMAN (OVERSEAS) HYGIENE HOME LIMITED

AI summary

The present invention provides for effervescent solid compositions for cleaning and/or disinfecting all surfaces in the form of a compressed tablet containing an effervescing component, a germicidal agent, and a non-ionic surfactants, but free of any anionic surfactants, wherein the weight ratio of the basic ingredients to the acidic ingredients of the effervescing component is within a range of from about 1.0:1.0 to about 1.0:4.0.