Cooking Container Non-Stick Coating with Antimicrobial Additives

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing non-stick coatings for cooking containers do not provide antimicrobial protection against the growth and propagation of microorganisms, posing risks of cross-contamination and hygiene issues, while handles are not sufficiently hygienic and safe against bacterial and viral contamination.

Innovation Solution

Incorporation of antimicrobial additives such as silver ions, zinc, copper, and Aloe-based compounds into non-stick coatings and handles to inhibit microbial growth, using polymers like PTFE, FEP, PFA, PES, PPS, PEEK, or Sol-Gel ceramic materials with silver ions and Aloe powder/juice/gel.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If conventional non-stick coatings (PTFE or ceramic) are used, then non-stick performance and ease of cleaning are improved, but antimicrobial protection is not provided allowing microbial growth and cross-contamination

Engineering Contradiction:
Improvenon-stick coating applicationVSAvoidmicrobial contamination
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent applies composite materials by integrating antimicrobial agents (silver ions, zinc, copper, or Aloe-based compounds) into the existing non-stick coating matrix (PTFE or ceramic). This creates a multi-functional coating that simultaneously provides non-stick properties and antimicrobial protection, resolving the contradiction between ease of manufacture and harmful microbial factors.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent applies local quality by specifically enhancing the surface properties of the coating to provide antimicrobial activity where it is most needed (in direct contact with food and handles), while maintaining the bulk non-stick properties of the original coating material.

Inventive Principle:
Principle #3Local quality

2Ease of operation

If handles are made for ergonomic grip, then ease of operation is improved, but hygiene and safety against bacterial contamination deteriorate

Engineering Contradiction:
Improvehandle gripVSAvoidbacterial contamination on handles
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent applies composite materials by coating the handle surface with antimicrobial materials (silver ions, zinc, copper, or Aloe-based compounds), creating a composite structure that maintains ergonomic grip properties while adding hygienic antimicrobial protection against bacterial contamination.

Inventive Principle:
Principle #40Composite materials

3Duration of action of stationary object

If multiple coating layers are applied to ensure durability and wear resistance, then coating longevity is improved, but manufacturing complexity increases

Engineering Contradiction:
Improvecoating durabilityVSAvoidcoating application process
Core Design Contradiction:
Duration of action of stationary objectVSDevice complexity

Solution Approach 1:

The patent applies merging by combining the antimicrobial function with the existing multi-layer non-stick coating system. Rather than adding separate antimicrobial treatment steps, the antimicrobial agents are integrated into the coating formulation itself, allowing simultaneous achievement of durability and reduced manufacturing complexity.

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 coatings and handles with antimicrobial properties effectively prevent microbial reproduction, enhancing hygiene and safety in cooking areas and user contact zones, while maintaining ease of use and durability.

Implementation Method 1

the coating includes antimicrobial additives such as silver ions and/or elements such as zinc and/or copper and/or Aloe powder and/or juice of Aloe and/or Aloe gel and/or one or more Aloe-based compound

Methodology Applied
Scientific EffectAntimicrobial action:

Implementation Method 2

non-stick containers for cooking food are generally coated inside a layer of PTFE-based material (short form for polytetrafluoroethylene fluoropolymer)

Methodology Applied
Scientific EffectNon-stick property:

Implementation Method 3

ceramic-based (Sol-Gel process) that allows the food not to stick. The particular technique creates a compact, smooth, absolutely non-porous and shiny coating film on the substrate

Methodology Applied
Scientific EffectSol-Gel process: Sol

Implementation Method 4

all the layers are baked in an oven at about 430°C for final sintering

Methodology Applied
Scientific EffectSintering: Sintering

Implementation Method 5

all the layers are subjected to kiln baking, at temperatures generally between 200°C and 350°C

Methodology Applied
Scientific EffectKiln baking:

Data Source

PatentEP4236740B1Container for cooking food with antimicrobial coating
Publication Date: 2026.01.28 TVS SPA
  • EP4236740B1 patent drawingFigure 1~3

AI summary

A container (1) for cooking food comprises a body (2), a bottom (3), a side wall (4), the body (2) has an outer surface (5), intended to come into contact with a heat source, and an inner surface (7), intended to come into contact with food with a non-stick coating (20), with an overall thickness of at least 10 pm, for example with a thickness between 10 pm and 80 pm, and being sintered by baking, at a temperature between 380 ° C and 450 ° C for fluoropolymer based non-stick products, such as PTFE or polytetrafluoroethylene, and between 150°C-350°C for Sol-Gel based non-stick products, for example a ceramic material, the coating (20) comprises antimicrobial additives such as silver ions and/or elements such as zinc and/or copper and/or Aloe powder and/or Aloe juice and/or Aloe gel and/or one or more Aloe-based compounds; a grip or handle (10) is also provided with an antimicrobial coating and/or antimicrobial paint (15) which includes an aqueous base, or a solvent base, and antimicrobial additives such as silver ions and/or elements such as zinc and/or copper and/or Aloe powder and/or Aloe juice and/or Aloe gel and/or any Aloe-based compound; a process for manufacturing the container (1) described above is also provided.