Antimicrobial Teat Dip Using Glycolic Acid and Surfactants

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Solution Overview

Problem

Current commercial teat dips for preventing mastitis in dairy animals are problematic due to the use of harsh chemicals that can irritate skin, cause allergic reactions, and contaminate milk, while also lacking broad-spectrum protection and being potentially harmful to humans.

Innovation Solution

An antimicrobial composition comprising glycolic acid, an anionic surfactant (such as sodium octane sulfonate or sodium lauryl sulfate), and a nonionic surfactant (like a C9-C11 alcohol ethoxylate), which provides broad-spectrum protection without causing skin irritation and is free from harmful chemicals like iodine and chlorhexidine.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If harsh chemicals like iodine, hypochlorite, and chlorhexidine are used in teat dips, then broad-spectrum antimicrobial protection is achieved, but skin irritation and allergic reactions occur

Engineering Contradiction:

Improveantimicrobial protectionVSAvoidskin irritation

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the chemical parameters by using milder alternatives (iodophors at controlled concentrations, chlorhexidine gluconate at optimized levels) combined with buffering agents to adjust pH, thereby maintaining antimicrobial efficacy while reducing skin irritation and allergic reactions

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite teat dip formulation combining multiple antimicrobial agents (iodophors, chlorhexidine gluconate, hydrogen peroxide) with surfactants, buffering agents, and skin conditioners to achieve synergistic antimicrobial protection while minimizing harmful effects on skin

Inventive Principle:

Principle #40Composite materials

2Speed

If strong disinfectants like hypochlorite are used, then immediate antimicrobial effect is achieved, but teat skin irritation is caused

Engineering Contradiction:

Improveantimicrobial action speedVSAvoidteat skin irritation

Core Design Contradiction:

SpeedVSObject-affected harmful factors

Solution Approach 1:

The patent modifies the chemical parameters by using iodophors and chlorhexidine gluconate at optimized concentrations with controlled release mechanisms, combined with pH buffering, to achieve rapid antimicrobial action without the severe skin irritation caused by strong oxidizing agents like hypochlorite

Inventive Principle:

Principle #35Parameter changes

3Reliability

If iodine and chlorhexidine are used in teat dips, then antimicrobial protection is provided, but milk contamination and staining occur

Engineering Contradiction:

Improveantimicrobial protectionVSAvoidmilk contamination

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent controls the concentration and formulation parameters of iodophors and chlorhexidine gluconate to minimize residual amounts that could contaminate milk, while maintaining effective antimicrobial protection on the teat surface

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent employs agents that degrade to harmless byproducts or can be easily rinsed off before milking, reducing the risk of persistent contamination of milk with antimicrobial residues

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

4Reliability

If iodine-based products are used, then antimicrobial effect is achieved, but allergic symptoms and skin sensitization develop

Engineering Contradiction:

Improveantimicrobial effectVSAvoidallergic symptoms

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent uses iodophors (complexes of iodine with solubilizing agents) at controlled concentrations instead of free iodine, which reduces allergic sensitivity while maintaining antimicrobial efficacy, and combines them with skin-conditioning ingredients to further reduce irritation

Inventive Principle:

Principle #35Parameter changes

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 composition achieves a significant reduction in Gram-positive and Gram-negative bacteria, offering a long-lasting protective barrier against mastitis with minimal irritation and no milk contamination, as demonstrated by log reduction tests.

Implementation Method 1

glycolic acid; an anionic surfactant selected from the group consisting of alkyl sulfonates, alkyl sulfates, and mixtures thereof; a nonionic surfactant comprising an alcohol ethoxylate; and a further anionic surfactant comprising an alpha-olefin sulfonate

Methodology Applied

Scientific EffectAntimicrobial activity:

Implementation Method 2

an anionic surfactant selected from the group consisting of alkyl sulfonates, alkyl sulfates, and mixtures thereof

Methodology Applied

Scientific EffectSurfactant action: Surfactant

Implementation Method 3

a nonionic surfactant comprising an alcohol ethoxylate

Methodology Applied

Scientific EffectBarrier formation:

Data Source

PatentEP3060040B1Antimicrobial compositions

Publication Date: 2019.06.26 DELAVAL HLDG AB

AI summary

Antimicrobial compositions and related methods are disclosed. The antimicrobial compositions include glycolic acid, an anionic surfactant, and at least one additional surfactant selected from anionic and nonionic surfactants.