Floor Covering Double Rollable Reinforcement
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Solution Overview
Problem
The existing floor coverings with double reinforcement and a foam sub-layer face difficulties in rolling due to the twin layer effect, leading to material fracture and unsightly defects on the visible side, as moisture-resistant adhesives have low adhesion to plasticized PVC and the foam thickness hinders bending, causing non-woven fibers to tear during rolling.
Innovation Solution
The first reinforcement is modified to consist exclusively of a glass grid, eliminating the non-woven polyester textile layer, allowing for easy rolling and maintaining aesthetic quality by stabilizing the covering with a high elastic modulus glass grid and enabling uniform elongation without fiber breakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a double reinforcement structure with non-woven polyester layers is used to meet moisture-resistant adhesive requirements, then adhesion capability is improved, but the covering becomes difficult to roll and fibers tear during rolling
Solution Approach 1:
The invention removes the non-woven polyester layer from the first reinforcement, retaining only the glass grid. This extraction eliminates the fiber tearing problem during rolling while preserving the essential reinforcement function and adhesion capability through the glass grid's structural integrity
Solution Approach 2:
The invention changes the elastic modulus parameter of the first reinforcement by using a glass grid with high elastic modulus. This parameter change allows the covering to maintain stability and resist tearing during rolling operations while still providing adequate reinforcement
2Reliability
If foam sub-layer thickness is increased to provide adequate bonding, then adhesion to floor is improved, but bending and rolling of the covering is hindered
Solution Approach 1:
The invention changes the elastic modulus parameter of the first reinforcement to a high value through the use of glass grid. This compensates for the reduced foam thickness by providing additional structural rigidity, allowing the covering to maintain bonding capability while improving bending and rolling characteristics
3Reliability
If non-woven polyester layer is included in the first reinforcement, then adhesion to adhesive is improved, but uniform elongation is prevented and fibers break during rolling
Solution Approach 1:
The invention extracts the non-woven polyester layer from the first reinforcement, eliminating the material that prevents uniform elongation and causes fiber breakage. The glass grid alone provides the necessary adhesion to adhesive while allowing uniform deformation during rolling
Solution Approach 2:
The invention uses a composite structure where the glass grid in the first reinforcement combines with the foam sub-layer and second reinforcement to achieve both adhesion and uniform elongation capabilities, replacing the non-woven polyester composite that caused fiber breakage
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 solution enables the floor covering to be rolled without fracturing, maintaining its visual appeal and ensuring the quality of the double reinforcement structure, as demonstrated by the improved tensile force and elongation graph showing no fiber breakage during the rolling process.
Implementation Method 1
stabilizing the covering with a high elastic modulus glass grid
Data Source
AI summary
A floor covering having a double rollable reinforcement, of the type comprising on the front a calendered sheet of predefined thickness, a first reinforcement, a layer of foam and a second reinforcement, made from polyester material comprising a grid and a non-woven layer on the back, is characterized in that the first reinforcement comprises a single glass grid.