Multilayer Flooring with Fiber Core for Rigidity and Insulation
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Solution Overview
Problem
Multilayer flooring made with core layers of WPC, SPC, PVC, plywood, MDF, or HDF is heavy, provides minimal sound reduction and thermal insulation, and lacks rigidity, while materials like plywood have increased in price and decreased in availability.
Innovation Solution
A multilayer flooring with a core layer made of substrate fibers bound by thermoplastic binder fibers, including bicomponent fibers, which provides improved rigidity, sound reduction, and thermal insulation, and can be made from recycled materials that are lighter and more cost-effective.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If traditional core materials (WPC, SPC, PVC, plywood, MDF, HDF) are used, then the flooring provides structural stability, but the flooring becomes heavy and provides minimal sound reduction and thermal insulation
Solution Approach 1:
The patent uses a composite core layer made of wood fibers bound together with polymeric adhesive, creating a new material that combines the structural stability of traditional materials with reduced weight and improved acoustic and thermal properties. This composite approach allows optimization of multiple properties simultaneously rather than being constrained by single-material limitations.
2Stability of the object's composition
If traditional core materials (WPC, SPC, PVC, plywood, MDF, HDF) are used, then the flooring provides structural stability, but the flooring provides minimal sound reduction and thermal insulation
Solution Approach 1:
The fiberboard core layer has a porous structure with interconnected voids between wood fibers, which naturally provides sound absorption and thermal insulation. The porous structure traps air pockets that act as acoustic and thermal barriers, improving these properties without sacrificing structural stability.
3Stability of the object's composition
If materials like plywood are used, then the flooring provides structural stability, but the cost increases and availability decreases
Solution Approach 1:
The patent changes the material composition parameters by using wood fibers and polymeric adhesive instead of traditional plywood or engineered wood products. This parameter change in material selection provides comparable structural stability while using more abundant, cost-effective materials that are easier to manufacture and source.
4Weight of stationary object
If the flooring is made lighter with fiber core, then the cost decreases and recyclability improves, but the rigidity may be reduced
Solution Approach 1:
The composite fiberboard core combines wood fibers with polymeric adhesive to create a material that achieves the necessary rigidity for flooring applications while maintaining reduced weight. The polymeric binder provides structural integrity that compensates for the lighter weight compared to solid wood or dense engineered materials.
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 fiber core layer enhances the flooring's rigidity, sound reduction, and thermal insulation, while being lighter and potentially more affordable, and can be entirely recyclable, addressing the limitations of traditional core materials.
Implementation Method 1
The thermoplastic binder fiber includes a bicomponent fiber
Data Source
AI summary
A multilayer flooring includes a decorative layer and a core layer. The decorative layer is configured to provide a desired appearance of the multilayer flooring. The core layer is disposed below the decorative layer and is configured to provide stability. The core layer is made of a substrate fiber bound together by a thermoplastic binder fiber. The substrate fiber includes cellulose fiber and/or synthetic fiber. The thermoplastic binder fiber includes a bicomponent fiber.