Wax-Based Bar Clay Composition for Shape Retention
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Solution Overview
Problem
Conventional bar-type clay for craft lacks shape consistency and extrusion formability, often resulting in difficulty in retaining shapes and creating uniform pieces, and can cause sticking and adhering issues during crafting.
Innovation Solution
A bar-type clay formulation using wax with a melting point between 50°C to 90°C, body pigment, and a colorant, where the wax is used between 50 wt % to 80 wt % and the pigment between 10 wt % to 40 wt %, and the colorant between 1 wt % to 10 wt %, to achieve good extrusion formability and shape consistency, preventing sticking and adhering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional clay for craft is used, then it is easy to purchase and supply, but it has poor shape consistency and extrusion formability, causing difficulty in retaining shapes and creating uniform pieces
Solution Approach 1:
The patent changes the physical and chemical parameters of the clay formulation by specifying precise compositional ranges (paraffin wax 50-80 wt%, microcrystalline wax 10-30 wt%, body pigment 10-40 wt%, colorant 1-10 wt%) and physical properties (melting point 50-90°C, penetration 10-150) to achieve consistent extrusion formability and shape retention while maintaining manufacturability
Solution Approach 2:
The patent creates a composite material system combining paraffin wax, microcrystalline wax, body pigment, and colorant in specific proportions to achieve synergistic effects that improve both shape consistency and extrusion formability while keeping the material easy to manufacture and source
2Ease of operation
If the wax penetration is increased above 150, then the clay becomes easier to work with, but the formability and extrusion performance deteriorate
Solution Approach 1:
The patent optimizes the penetration parameter of wax within the range of 10-150 (with preference for 30-100) to achieve the optimal balance between workability and extrusion formability, preventing both excessive hardness and excessive softness that would compromise crafting performance
3Ease of operation
If the wax content is increased above 80 wt %, then the formability improves, but shape retainability deteriorates and sticking characteristics increase
Solution Approach 1:
The patent optimizes the wax content within the range of 50-80 wt% (with preference for 60-70 wt%) to achieve the optimal balance between formability and shape retainability, preventing both excessive rigidity and excessive softness that would compromise crafting performance
Solution Approach 2:
The patent creates a balanced composite material system where paraffin wax and microcrystalline wax work synergistically with body pigment and colorant to achieve both good formability and shape retention without excessive sticking, leveraging the complementary properties of each component
4Manufacturing precision
If the body pigment content is increased above 40 wt %, then the extrusion performance improves, but formability in crafting deteriorates
Solution Approach 1:
The patent optimizes the body pigment content within the range of 10-40 wt% (with preference for 20-30 wt%) to achieve the optimal balance between extrusion performance and crafting formability, preventing both poor extrusion and excessive rigidity
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 clay provides excellent formability and shape retention, allowing for flexible and repeatable crafting without sticking issues, enabling the creation of various shapes and expressions, such as characters, numbers, and twisted forms, while being soft and flexible at body temperature and hardening at room temperature.
Implementation Method 1
the bar type clay for craft can be softened by a body temperature and can be hardened at room temperature
Implementation Method 2
the bar type clay for craft can be softened by a body temperature and can be hardened at room temperature
Data Source
AI summary
Bar type clay for craft including 50 wt % to 80 wt % of wax, 10 wt % to 40 wt % of body pigment, and 1 wt % to 10 wt % of a colorant, and formed to have a bar-like shape is provided.