Co-extruded Materials for Durable Integrated Images
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Solution Overview
Problem
Existing methods for attaching images to consumer product parts, such as media players, face issues with durability and consistency, particularly when using printing or label/film applications, which can lead to wear and peeling off, and are limited by material compatibility in techniques like double-shot molding.
Innovation Solution
The co-extrusion process involves combining a base material with a graphic material through a die to form a continuous workpiece, which is then cut into cross-sectional parts, allowing for durable, integrated images on complex topographies, including ceramics, and enabling efficient production of multiple identical parts with varied designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If printing or label/film application is used to attach images to product parts, then the image application process is simple, but the image durability deteriorates due to wear and peeling
Solution Approach 1:
The patent merges the image formation process with the part manufacturing process by co-extruding the image material together with the base material through a single extrusion die. This integration eliminates separate image application steps while ensuring the image becomes an inherent part of the product, thereby improving durability without complicating manufacturing.
Solution Approach 2:
The patent uses composite materials by combining a base material with an image-forming material in a co-extrusion process. The image material is embedded within or on the surface of the base material, creating a composite structure where the image becomes integral to the part and resistant to wear and peeling.
2Reliability
If double-shot molding is used to mold images on parts, then image integration is improved, but material compatibility is limited
Solution Approach 1:
The patent achieves universality by using a single extrusion die that can co-extrude multiple materials simultaneously. This approach allows the use of various material combinations (different base materials with different image materials) without requiring separate molding processes, thereby expanding material compatibility while maintaining integrated image formation.
3Ease of manufacture
If images are printed on the front surface of parts, then the application process is simple, but image durability worsens due to rubbing off during use
Solution Approach 1:
The patent moves the image formation from a surface-level 2D application to a 3D integrated structure through co-extrusion. The image material is formed within or as part of the material matrix, giving it depth and dimensional integration that prevents rubbing off while maintaining manufacturing efficiency.
4Productivity
If traditional molding techniques are used, then production efficiency is good, but design versatility deteriorates for complex topographies
Solution Approach 1:
The patent introduces dynamics to the extrusion process by enabling the formation of complex topographies and varied cross-sectional shapes through a single die design. The extrusion die can be configured to produce parts with different geometries, surface profiles, and embedded image configurations, allowing design versatility without sacrificing continuous production efficiency.
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 method provides durable, integrated images that resist wear and peeling, allows for complex topographies, and facilitates efficient production of identical parts with varied designs, overcoming limitations of traditional printing and molding techniques.
Implementation Method 1
The workpiece may be extruded through a single die that includes a plurality of orifices that may be fed by one or more extruders
Data Source
AI summary
Co-extruded materials and methods for forming co-extruded materials that include images are disclosed. The method may include co-extruding two materials together to form a co-extruded workpiece. The first material may be a base material and the second material may be a graphic material used to form one or more images in a cross-section of the workpiece. One or more cross sectional parts that include the one or more images may then be generated by cutting, slicing or otherwise forming cross-sectional parts from the workpiece.