Composite Candle Wick Manufacturing via Laminated Cotton and Wood
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Solution Overview
Problem
Candles with wood wicks exhibit inconsistent flame heights due to natural variations in wood, leading to poor aesthetics and reduced fragrance release, as well as potential excessive smoking and heat production from high flames.
Innovation Solution
A composite candle wick is manufactured by laminating cotton and wood wicks using a wax coating as a binding agent, with synchronized feeding and pressure application to ensure consistent length and adhesion, followed by cutting to specific lengths for optimal performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a wood wick is used in candles, then the candle can be manufactured with simple materials, but the flame height becomes inconsistent due to natural variations in the wood
Solution Approach 1:
The patent combines two different materials (cotton and wood) into a composite wick structure. The cotton component provides consistent flame height control while the wood component maintains aesthetic appearance and structural integrity. This composite approach resolves the contradiction by leveraging the complementary properties of each material to achieve both ease of manufacture and flame height consistency.
2Ease of manufacture
If the cotton wick extends beyond the edges of the wood wick, then the lamination process is simpler, but the composite wick becomes delaminated during manufacturing processes
Solution Approach 1:
The patent specifies precise dimensional parameters for the cotton wick, requiring it to be narrower than the wood wick in all dimensions. This parameter constraint ensures that the cotton wick remains fully contained within the wood wick boundaries, preventing delamination during subsequent manufacturing processes while maintaining lamination simplicity.
3Strength
If pressure is applied to laminate the cotton and wood wicks, then adhesion is improved, but the wick materials may become misaligned
Solution Approach 1:
The patent employs a feed mechanism that preliminarily positions and aligns the cotton and wood wicks before the lamination process. This preliminary alignment action ensures that the wicks are correctly positioned prior to pressure application, allowing subsequent pressure to enhance adhesion without causing misalignment.
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 composite wick provides consistent flame heights, improving aesthetics and fragrance release while preventing excessive smoking and heat, ensuring reliable candle performance across various manufacturing processes.
Implementation Method 1
The wood wick is heated in order to cause a melting of a wax coating around the cotton wick
Data Source
AI summary
The system and method for manufacturing the composite candle wick includes a mechanism for feeding the cotton wick and wood wick at substantially the same speeds. The wood wick is heated in order to cause a melting of a wax coating around the cotton wick and pressure is applied to the wick materials through a compression wheel and drive belt which carries the wick materials. Once the pressure is applied to form the composite wick the wicks are then sent through a cutting tube where a cutting blade will cut the wick to its desired length.