Core-Sheath Thread Conveyor Belt for High-Temperature Anti-Adhesion

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Solution Overview

Problem

Conveyor belts face issues with products sticking due to insufficient temperature resistance and impaired functionality over time.

Innovation Solution

A planar structure using a core-sheath thread with a polyetherketone core and perfluoroalkoxy polymer sheath, providing high temperature resistance and anti-adhesive properties, suitable for conveyor belts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If conventional conveyor belts are used, then basic transportation function is provided, but products stick to the belt and functionality deteriorates over time due to insufficient temperature resistance

Engineering Contradiction:
Improvetemperature resistanceVSAvoidfunctionality maintenance
Core Design Contradiction:
TemperatureVSReliability

Solution Approach 1:

The invention uses a core-sheath thread structure where the core provides mechanical strength and the sheath provides temperature resistance and anti-adhesive properties. This composite material approach combines the advantages of different materials to simultaneously achieve high temperature resistance (up to 260°C) and reliable functionality maintenance over time.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The invention changes the material parameters of the conveyor belt by using specific polymers (polyetherketone for the core and perfluoroalkoxy polymer for the sheath) that maintain their physical and chemical properties at high temperatures, thereby enabling the belt to resist temperature-induced degradation and sticking.

Inventive Principle:
Principle #35Parameter changes

2Object-affected harmful factors

If conventional materials are used for conveyor belts, then basic structural requirements are met, but anti-adhesive properties are insufficient causing product sticking

Engineering Contradiction:
Improveproduct stickingVSAvoidthread structure complexity
Core Design Contradiction:
Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The core-sheath thread structure combines materials with complementary properties: the polyetherketone core provides structural integrity while the perfluoroalkoxy polymer sheath provides superior anti-adhesive properties. This composite approach effectively prevents product sticking without requiring complex manufacturing processes, as the core-sheath structure can be produced using standard textile manufacturing techniques.

Inventive Principle:
Principle #40Composite materials

3Temperature

If high temperature resistant materials are used, then temperature resistance is improved, but the material may become too rigid or difficult to process

Engineering Contradiction:
Improvetemperature resistanceVSAvoidprocessability
Core Design Contradiction:
TemperatureVSEase of manufacture

Solution Approach 1:

The core-sheath structure allows the polyetherketone core to provide temperature resistance while the perfluoroalkoxy polymer sheath maintains flexibility and processability. This division of functions enables the material to withstand high temperatures (up to 260°C) while remaining easy to manufacture and process using conventional textile methods.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

Different parts of the thread have different properties optimized for their specific functions: the core is designed for thermal stability and strength, while the sheath is designed for flexibility, anti-adhesion, and ease of processing. This local optimization allows the overall material to achieve high temperature resistance without sacrificing processability.

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP4041942B1Sheet material, method for producing a sheet material
Publication Date: 2026.01.07 WURTTEMBERGISCHE SPIRALSIEBFAB
  • EP4041942B1 patent drawingFigure 1
  • EP4041942B1 patent drawingFigure 2a~2b
  • EP4041942B1 patent drawingFigure 3a~3b

AI summary

The invention relates to a yarn having a core and a sheath surrounding the core, the core containing a polyether ketone and the sheath surrounding the core containing a perfluoroalkoxy polymer. The invention also relates to a sheet material, the use of the yarn for producing the sheet material, a method for producing the yarn and a method for producing the sheet material.