Needle-Punched Velour Carpet Deformation Stability
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Solution Overview
Problem
Existing methods for producing motor vehicle floor and luggage compartment panels with a needled structure fail to achieve a deformation-friendly, three-dimensional surface that maintains its structure during deformation processes such as laminating and radiant heating, lacking solutions for structuring velor surfaces using brush geometry and retaining a non-destructive surface pattern.
Innovation Solution
A method for producing a deformation-friendly, structurally needled velor carpet with a grammage of 180 g/m² to 700 g/m², utilizing a brush band with varying brush fiber heights and structures across the width and length, and specific needle types/ geometries to create a predetermined three-dimensional structure on the carpet surface, allowing for deformation stability without additional work steps or equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a flat needle-punched carpet is produced with a homogeneous surface, then the manufacturing process is simple and efficient, but the carpet lacks three-dimensional structure and deformation stability during laminating and heating processes
Solution Approach 1:
The brush strip is equipped with brush elements that have varying geometries, heights, and densities at different locations across the width and length of the carpet. This local variation in brush characteristics creates corresponding three-dimensional surface structures in different regions of the carpet, enabling deformation stability in specific areas while maintaining overall manufacturing feasibility.
Solution Approach 2:
The three-dimensional surface structure is predetermined and built into the carpet during the manufacturing process through the pre-configured brush strip. The brush geometries are selected and arranged in advance to create the desired surface profile, eliminating the need for subsequent post-processing steps to achieve three-dimensionality.
2Stability of the object's composition
If the carpet surface is structured with needled patterns, then the aesthetic appearance and feel are improved, but the surface structure is destroyed during deformation processes such as laminating and radiant heating
Solution Approach 1:
The physical and chemical parameters of the carpet surface are modified during manufacturing through controlled needling processes and binder application. The surface structure is engineered with specific physical properties that enable it to withstand deformation processes like laminating and radiant heating without destruction, while still providing the desired aesthetic appearance and feel.
3Shape
If additional work steps are added to create three-dimensional structure, then the carpet achieves deformation stability, but the manufacturing process becomes more complex and time-consuming
Solution Approach 1:
The creation of three-dimensional surface structure is merged with the standard carpet manufacturing process. The brush strip with varying geometries is integrated into the existing production line, allowing three-dimensional structuring to occur during the normal manufacturing sequence without requiring separate additional work steps or equipment.
Solution Approach 2:
The brush strip serves multiple functions simultaneously: it creates the three-dimensional surface structure, applies the binder distribution, and determines the final carpet appearance. This multi-functionality eliminates the need for separate processing steps for each of these functions, reducing overall manufacturing time while achieving the desired three-dimensional effect.
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 method provides a durable, deformation-stable, three-dimensionally needled velor carpet that enhances the aesthetic and functional properties of motor vehicle floor and luggage compartments, achieving a 'living room/feel-good atmosphere' while maintaining structural integrity during deformation processes.
Implementation Method 1
staple fibers are bonded between two metal plates after a carding and cross-folding process using multiple needle-punching steps
Implementation Method 2
thermal or chemical bonding of the staple fibers after needle-punching is necessary to achieve good final strength
Implementation Method 3
using a brush strip that has segmentally or partially surface sections of different brushes and/or brush arrangements, and providing and deforming this velour carpet
Data Source
Figure 1
Figure 2
AI summary
The invention relates to a three-dimensionally deformable velour carpet for a floor covering, boot or trunk covering or load compartment covering for motor vehicles, the surface of which, on the visible face, has a needle-punched structure produced by structured brushes in the brush belt.