Container Candle Manufacturing Viscosity Control
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Solution Overview
Problem
Traditional methods for manufacturing container candles and tealights face inefficiencies, including long cooling times, shrinkage, visual defects, and difficulty in incorporating fragrances and colors, due to issues with crystallization and viscosity control.
Innovation Solution
A method that involves cooling and then filling a candle mixture into a receptacle, using viscosity measurement to determine the optimal filling point, allowing for rapid crystallization and minimizing post-crystallization effects, while enabling flexibility in fuel components and additive incorporation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the candle mixture is filled very hot in traditional production, then the mixture remains liquid and easy to pour, but the cooling time becomes very long and heat is lost to the environment
Solution Approach 1:
The invention applies preliminary cooling to the candle mixture before filling into the container. The mixture is cooled to a temperature just above the crystallization point, reducing heat content while maintaining pourability. This preliminary action reduces the cooling time after filling without compromising the ease of pouring during the filling process.
2Productivity
If the candle mixture is cooled rapidly to reduce cooling time, then the production efficiency increases, but shrinkage behavior and visual defects occur due to crystallization
Solution Approach 1:
The invention changes the temperature parameter of the candle mixture to a specific range just above the crystallization point before filling. This parameter change allows the mixture to maintain liquid state for easy filling while reducing the temperature difference after filling, thereby minimizing rapid crystallization, shrinkage, and visual defects. The mixture is filled at a controlled temperature that balances pourability and quality.
3Manufacturing precision
If a second layer is applied after the first layer solidifies to cancel shrinkage effects, then the visual quality is improved, but the total production time becomes very long
Solution Approach 1:
The invention applies preliminary cooling to the mixture before filling, which prevents shrinkage and visual defects from occurring in the first place. This preliminary action eliminates the need for a second corrective layer, thereby maintaining high visual quality while significantly reducing the total production time.
4Loss of time
If the slurry process is used to cool the candle below crystallization temperature before filling, then the cooling time is reduced, but the process becomes difficult to control and less flexible regarding raw materials
Solution Approach 1:
The invention changes the temperature parameter to a specific range just above the crystallization point, not below it. This parameter change maintains the mixture in a liquid state that is easy to control and pour, while still achieving rapid cooling after filling. This approach preserves raw material flexibility and process controllability while reducing cooling time.
5Ease of operation
If the pouring temperature is set much higher than the solidification temperature with a margin, then the mixture remains liquid and easy to pour, but the addition of additives is limited and testing must be performed for each wax
Solution Approach 1:
The invention changes the pouring temperature parameter to a specific range just above the crystallization point, eliminating the need for a large safety margin. This allows additives to be added without significantly influencing the pouring properties, reduces the need for extensive testing for each wax type, and simplifies the overall process while maintaining ease of pouring.
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 approach significantly reduces cooling time, minimizes shrinkage and visual defects, and allows for better fragrance and color absorption, increasing production efficiency and flexibility in candle composition.
Implementation Method 1
cooling the liquid fuel components, wherein the viscosity of the liquid fuel components is increased
Implementation Method 2
the liquid fuel components are filled into a receptacle and cooled in the receptacle; thereby forming a candle
Data Source
Figure 1~2
AI summary
A method for manufacturing container candles and tealights, comprising the steps of: (i) providing one or more liquid fuel components, the one or more liquid fuel components having a first viscosity; (ii) cooling the liquid fuel components, increasing the viscosity of the one or more liquid fuel components to a second viscosity; (iii) filling the liquid fuel components into a receptacle; and (iv) cooling the liquid fuel components in the receptacle to form a candle; wherein the ratio between the second viscosity and the first viscosity is at least 1.2.