Two-Coat Paint System High Organic Pigment Foundation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional paint systems require multiple coats to achieve sufficient hiding and opacity, especially for bright and highly saturated colors like yellow, orange, and red, which increases costs and labor, and existing solutions compromise on brightness and chroma when using inorganic pigments or primer coats.
Innovation Solution
A two-coat paint system comprising a tintable foundation base with an unconventionally high amount of organic color pigments, often exceeding 15% by volume, and a top coat with primarily organic pigments, optimizing the ratio of organic to inorganic pigments to enhance hiding and retain brightness and chroma.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple coats of paint are applied to achieve sufficient hiding and opacity, then the hiding quality and opacity are improved, but the number of coats increases leading to higher costs and labor requirements
Solution Approach 1:
The patent changes the pigment concentration parameter by formulating the foundation coat with 5-20% by volume organic color pigments, which is higher than conventional practices. This parameter change enables the foundation coat to provide sufficient hiding and opacity in a single coat, eliminating the need for multiple coats while maintaining reliable hiding quality.
Solution Approach 2:
The patent creates a composite paint system combining a foundation coat with high organic pigment concentration and a top coat with primarily organic pigments. This composite material approach allows the foundation coat to establish strong hiding properties while the top coat enhances color brightness and chroma, achieving both reliable hiding and aesthetic quality in two coats total.
2Reliability
If inorganic white or other color pigments are blended with organic pigments to improve hiding, then the hiding quality is improved, but the brilliant chroma of the organic pigment is decreased
Solution Approach 1:
The patent applies local quality by assigning different pigment compositions to different layers: the foundation coat uses 5-20% organic color pigments optimized for hiding and opacity, while the top coat uses primarily organic pigments optimized for brightness and chroma. This local differentiation allows each layer to fulfill its specific function without compromising the other.
Solution Approach 2:
The patent segments the paint application into two distinct coats with different pigment formulations. The foundation coat handles the hiding function with its higher organic pigment concentration, while the top coat handles the color brightness function. This segmentation separates the conflicting requirements of hiding and chroma into different functional layers.
3Reliability
If a white primer coat is applied to achieve additional hiding of existing substrate colors, then the hiding quality is improved, but the total number of coats increases to at least three
Solution Approach 1:
The patent makes the foundation coat multi-functional by formulating it to simultaneously provide both hiding properties and color brightness. With 5-20% organic color pigments, the foundation coat can hide the substrate while establishing the desired color appearance, eliminating the need for a separate white primer coat and reducing the total coat count to two.
Data Source
AI summary
A paint system is provided that includes a foundation base component combined with a tinted, opaque top coat component and that hides any colors on all types of substrates and maintains the brightness and cleanness for all colors. The foundation base component is a tintable color base containing at least one organic synthetic pigment at an amount of at least twice as much as the amount of organic synthetic pigment in the top coat component. The tintable foundation base component has a volume ratio of organic pigments to inorganic pigments of at least about 0.5 and a volume ratio of organic pigment to polymer binder of at least about 0.1. The volume ratio of organic pigment to polymer binder in the top coat component is less than about 10.1 with at least about 80% by volume of pigments being synthetic organic pigments.