Plastic-Fiber Modeling Compound for Leather-Like Surface Texture
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Solution Overview
Problem
Existing modeling compounds form smooth surfaces without structures, lacking both optical and haptic texture, and do not replicate leather-like effects without additional tools or aids.
Innovation Solution
A modeling compound comprising plastisol as a binder, plastic fibers as fillers, and optional phthalate-free plasticizers, which forms a structured surface during the modeling process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If conventional modeling compounds (without plastic fibers) are used, then the compound is easy to process and smooth surfaces are formed, but the surface lacks optical and haptic structure and cannot replicate leather-like effects
Solution Approach 1:
The plastic fibers are pre-incorporated into the modeling compound formulation before the modeling process begins. This preliminary inclusion of structuring agents means that the surface structure forms automatically during normal modeling operations without requiring subsequent structuring steps or special tools, thus achieving complex surface effects without increasing manufacturing complexity
Solution Approach 2:
The plastic fibers within the compound automatically form surface structures during the modeling process itself, without requiring external intervention or additional processing steps. The compound self-structures as it is being manipulated, allowing the modeling process to simultaneously create both the form and the surface texture of the final product
2Shape
If additional structuring tools and aids are used to create surface texture, then leather-like optical and haptic effects can be achieved, but the manufacturing process becomes more complex and requires extra work steps
Solution Approach 1:
The plastic fibers automatically self-organize into surface structures during the modeling process itself, eliminating the need for external structuring tools or aids. The compound performs the structuring function inherently through its composition, allowing normal modeling tools to create both form and surface texture without requiring specialized equipment
Solution Approach 2:
The patent extracts the surface structuring function from the tooling process and embeds it directly into the compound formulation. Instead of using external tools to impose structure on the surface, the structuring capability is taken out of the processing equipment and built into the material itself through the inclusion of plastic fibers
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 compound automatically creates a visually and haptically perceptible structured surface resembling leather, achieving both optical and haptic leather-like effects without extra effort.
Implementation Method 1
Plastic, oven-hardening materials for shaping and modeling objects are generally known... which can be deformed by hand and hardened by heating
Data Source
AI summary
The invention relates to a modeling compound consisting of at least one binder comprising plastisol and at least one filler and optionally other substances. The plastisol is composed essentially of PVC and plasticizers, characterized in that the at least one filler is in the form of plastic fibres.