Multi-Component Cartridge System for Marine Paint Application

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

High-solids, multi-component paints with low VOCs are difficult to apply due to their high viscosity and short pot life, requiring precise temperature and humidity control, leading to increased costs and waste in traditional mixing and application methods.

Innovation Solution

A multi-component cartridge system with a static mixing nozzle and applicator options like rollers or spray tips allows for simultaneous dispensing, mixing, and application of paints in one step, reducing exposure to hazardous materials and minimizing waste, while maintaining exact mixing ratios and reducing VOC emissions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-generated harmful factors

If multi-component high solids paints are used to reduce VOCs, then environmental compliance and coating performance are improved, but viscosity increases and pot life decreases making application difficult

Engineering Contradiction:
ImproveVOC emissionsVSAvoidapplication difficulty
Core Design Contradiction:
Object-generated harmful factorsVSEase of operation

Solution Approach 1:

The paint system is divided into separate multi-component cartridges that dispense individual components independently. These components are mixed in precise ratios just before application through a static mixer, allowing the paint to maintain low viscosity during storage while achieving the desired high solids content for reduced VOCs and improved performance

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The components are pre-packaged in separate cartridges with precise volumes to ensure correct mixing ratios. The static mixer is pre-installed in the dispensing system to automatically mix components in the exact proportions required, eliminating the need for manual measurement and mixing before application

Inventive Principle:
Principle #10Preliminary action

2Object-generated harmful factors

If multi-component high solids paints are used to reduce VOCs, then environmental compliance is improved, but pot life is shortened requiring rapid application

Engineering Contradiction:
ImproveVOC emissionsVSAvoidpot life
Core Design Contradiction:
Object-generated harmful factorsVSDuration of action of moving object

Solution Approach 1:

The paint components are kept separate in individual cartridges until the moment of application. This segmentation prevents premature chemical reaction, extending the effective working time while still enabling rapid mixing and application when needed through the integrated static mixer system

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The static mixer automatically performs the mixing function as components flow through the dispensing system. This self-mixing capability ensures immediate and thorough mixing upon dispensing, maximizing the utilization of pot life without requiring external mixing equipment or manual intervention

Inventive Principle:
Principle #25Self-service

3Ease of operation

If traditional mixing and application methods are used, then application process is simple, but temperature and humidity control is required increasing costs

Engineering Contradiction:
Improveprocess simplicityVSAvoidenvironmental control requirements
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The separate component cartridges and integrated static mixer eliminate the need for external mixing equipment and environmental control systems. The system performs mixing internally under ambient conditions, maintaining simplicity while removing complex environmental requirements

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The mixing and dispensing functions are merged into a single integrated system with the static mixer built into the dispensing apparatus. This combination eliminates the need for separate mixing equipment and environmental control systems, reducing overall system complexity while maintaining precise mixing ratios

Inventive Principle:
Principle #5Merging (Combining)

4Device complexity

If traditional mixing and application methods are used, then equipment is simple, but material waste increases

Engineering Contradiction:
Improveequipment simplicityVSAvoidmaterial waste
Core Design Contradiction:
Device complexityVSLoss of substance

Solution Approach 1:

The separate component cartridges allow for precise dispensing of each paint component in the exact ratios required. This segmentation enables accurate material delivery and minimizes waste by ensuring that only the necessary amounts of each component are dispensed and mixed

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The static mixer automatically and thoroughly mixes components as they flow through the dispensing system, ensuring complete utilization of each component. This self-mixing process eliminates the need for additional material to ensure proper mixing and maximizes the efficiency of material usage

Inventive Principle:
Principle #25Self-service

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

This system enables efficient, safe, and cost-effective application of high-solids, low-VOC paints by ensuring precise mixing and application, reducing waste and environmental impact, and improving painter safety and process efficiency.

Implementation Method 1

A multi-component cartridge system with a static mixing nozzle

Methodology Applied
Scientific EffectTurbulent flow mixing: Turbulence

Implementation Method 2

simultaneous dispensing, mixing, and application of paints

Methodology Applied
Scientific EffectDiffusion: Diffusion

Data Source

PatentUS7815384B2Dual component dispensing and mixing systems for marine and military paints
Publication Date: 2010.10.19 MEDMIX SWITZERLAND AG
  • US7815384B2 patent drawing
  • US7815384B2 patent drawing
  • US7815384B2 patent drawing

AI summary

A device for applying a coating comprises at least two cylindrical cartridges, a static mixing nozzle in fluid communication with the cartridges, a spray tip, in fluid communication with the nozzle, a first flexible hose disposed between and in fluid communication with the nozzle and the spray tip, and a second hose, in fluid communication with the spray tip, for supplying atomization air to the spray tip. Methods of applying coatings with the device are also provided.