Rapeseed Candle Wax Composition for Smooth Crystallization
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Solution Overview
Problem
Rapeseed oil, when partially hydrogenated for candle production, exhibits significant crystallization issues leading to a cauliflower-like appearance due to its high stearic acid triglyceride content, which affects the texture and appearance of candles.
Innovation Solution
A vegetable wax composition comprising at least partially hydrogenated rapeseed oil, mixed with long-chain fatty alcohols (C18, C20, C22) and optionally monoglycerides/diglycerides, modifies the crystallization of triglycerides, resulting in a smooth and homogeneous texture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If rapeseed oil is partially hydrogenated to achieve suitable melting point, then the melting point becomes suitable for candle base (40-60°C), but significant crystallization occurs resulting in cauliflower-like appearance
Solution Approach 1:
Fatty alcohols (C18, C20, C22) are introduced as intermediary substances that modify the crystallization process of triglycerides in rapeseed oil. These alcohols act as mediators between the hydrogenated oil and the desired smooth appearance, preventing cauliflower-like crystallization while preserving the suitable melting point range for candle application
Solution Approach 2:
The composition parameters are precisely controlled: 5-50% fatty alcohols and 0-10% monoglycerides/diglycerides are added to the partially hydrogenated rapeseed oil. This parameter modification changes the crystallization behavior of the triglycerides, transforming the appearance from cauliflower-like to smooth and homogeneous while maintaining the melting point between 40-60°C
2Reliability
If rapeseed oil is used as candle base, then it is GMO-free and produced in Europe, but it presents textural problem with expansive crystallization
Solution Approach 1:
The invention creates a composite material system combining partially hydrogenated rapeseed oil with fatty alcohols and optionally monoglycerides/diglycerides. This composite approach preserves the reliable GMO-free status of European rapeseed oil while adding components that eliminate the textural defects, achieving both reliability and aesthetic quality
3Shape
If fatty alcohols are added to modify crystallization, then surface smoothness is enhanced, but the composition complexity increases
Solution Approach 1:
Rather than fundamentally changing the composition system, the invention modifies parameters by adding specific components (fatty alcohols and optionally monoglycerides/diglycerides) within defined concentration ranges. This parameter-based approach achieves surface smoothness enhancement while keeping the composition relatively simple and manageable
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 composition achieves a refined candle texture with reduced crystallization issues, maintaining a suitable melting point and enhancing surface smoothness, suitable for scented candles.
Implementation Method 1
modifies the crystallization of the triglycerides present in rapeseed oil
Implementation Method 2
Following a partial hydrogenation process, rapeseed oil yields a vegetable fat with a suitable melting point
Data Source
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Figure 3~4
AI summary
The present invention relates to a vegetable wax composition for candles comprising at least 30% by weight of food-grade rapeseed oil, at least partially hydrogenated. According to the invention, this vegetable wax composition for candles further comprises 5 to 50% by weight of a mixture of fatty alcohols including long-chain fatty alcohols in the C18, C20, and C22 groups, this mixture of fatty alcohols being obtained by hydrogenation and transesterification of an oil comprising a mixture of C18, C20, and C22 fatty acids, as well as 0 to 10% by weight of a mixture of C18 and C22 monoglycerides and/or diglycerides, said mixture of monoglycerides being obtained by lipochemical transformation of an oil comprising a mixture of C18, C20, and C22 fatty acids. The present invention also relates to a vegetable candle comprising at least one wick partially embedded in the composition according to the invention, and a method for manufacturing such a candle.