Embossed Furniture Panel Coating for Continuous Deep 3D Forming
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Solution Overview
Problem
Current methods for creating panels with deep three-dimensional structures for furniture are time-consuming, expensive, and require specialized equipment, limiting the production of panels with significant embossing depths and making continuous production challenging.
Innovation Solution
A panel composed of a mechanically rigid base sheet and a coating sheet made from thermoplastic polymers mixed with vegetable and/or mineral fillers, allowing for deep embossing without strong pressure equipment, and enabling continuous production by using extruders with embossed barrels to create flexible sheets that can be wound and applied to the base sheet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If decorative films with small thickness (200-300 μm) are used for embossing, then the embossing process is simpler and faster, but the embossing depth is reduced to not exceeding 400 μm
Solution Approach 1:
The patent uses a multilayer composite structure consisting of a base sheet (MDF, plywood, or particle board) combined with a decorative film. This composite structure allows the thin decorative film to achieve deep embossing effects by leveraging the thickness and structural properties of the base sheet, thereby overcoming the limitation of shallow embossing depth inherent in thin films while maintaining the advantages of fast and simple embossing processes.
2Manufacturing precision
If deep embossing (greater than 300-400 μm) is achieved by engraving directly on the panel, then the embossing depth is sufficient, but the process becomes slow and expensive requiring specific high-pressure apparatuses
Solution Approach 1:
The patent introduces a decorative film as an intermediary layer between the base sheet and the final surface. This film serves as a mediator that can be embossed more easily and quickly than the rigid base sheet itself, while still achieving the desired deep embossing effect when combined with the base sheet structure. This eliminates the need for slow and expensive high-pressure engraving apparatuses.
Solution Approach 2:
The patent changes the physical parameters of the embossing process by using a flexible decorative film instead of directly embossing the rigid base sheet. This allows the embossing process to be performed under lower pressure and faster conditions, significantly improving production speed while maintaining adequate embossing depth through the composite structure.
3Manufacturing precision
If high-pressure presses and pantographes are used to create deep embossments, then the embossing depth is sufficient, but the equipment cost and processing time increase significantly
Solution Approach 1:
The patent employs relatively simple and inexpensive embossing equipment to create embossing patterns on decorative films. The decorative film itself acts as a disposable or replaceable component that absorbs the complexity of achieving deep embossing, allowing the use of simpler, more affordable pressing equipment rather than expensive high-pressure pantographes and presses.
4Manufacturing precision
If individual panels are produced in sequence with predetermined dimensions, then deep embossing can be achieved, but continuous production is not possible
Solution Approach 1:
The patent enables continuous production by using decorative films that can be supplied in continuous rolls and embossed continuously on the base sheets. The flexible film material allows for uninterrupted embossing processes, eliminating the need to stop and reposition equipment for each individual panel, thereby achieving both deep embossing quality and continuous manufacturing 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
The solution enables rapid, inexpensive production of panels with deep embossing, reducing production costs and time, and allowing for continuous manufacturing of panels with enhanced aesthetic and mechanical properties.
Implementation Method 1
the compound of said coating sheet is composed of thermoplastic polymers mixed with a vegetable and/or mineral filler
Implementation Method 2
said coating sheet being superposed on at least one face of the base sheet
Data Source
AI summary
Panel, particularly a panel used for making furnishings such as doors, boards, tables, furniture or the like, which panel on at least one face thereof has at least a three-dimensional structure and which panel is composed of a mechanically rigid base or supporting sheet and a coating sheet for giving the aesthetic appearance to said panel, said coating sheet being superposed on at least one face of the base sheet, wherein the compound of said coating sheet is composed of thermoplastic polymers mixed with a vegetable and/or mineral filler, which compound gives such flexibility properties to the coating sheet that said coating sheet can be wound on itself.