Biodegradable Resin Wallpaper Coating for Sustainable Manufacturing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
PVC wallpaper is made from nonrenewable fossil energy resources, leading to supply and demand issues, price increases, environmental pollution due to greenhouse gas emissions, and persistent environmental damage upon disposal or fire.
Innovation Solution
Manufacturing wallpaper with a biodegradable resin layer on a base sheet, using natural or synthesized biodegradable polymers like PLA, PBS, and PBAT, which can decompose readily and reduce environmental impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If PVC wallpaper is manufactured using nonrenewable fossil energy resources, then the wallpaper can be produced with established manufacturing processes, but raw material supply and demand issues occur and price increases are expected with petroleum exhaustion
Solution Approach 1:
The patent changes the fundamental parameter of the resin material from conventional PVC (polyvinyl chloride) to biodegradable resins such as polyhydroxyalkanoates (PHA), polylactic acid (PLA), and polybutylene succinate (PBS). This parameter change enables the wallpaper to be manufactured with renewable resources while maintaining the coating process on paper or fabric bases, thus resolving the contradiction between ease of manufacture and raw material supply sustainability.
2Productivity
If PVC wallpaper is manufactured using conventional methods, then production can proceed with existing technology, but a large amount of greenhouse gases such as CO2 are generated during the manufacturing process
Solution Approach 1:
The patent changes the chemical composition parameter of the resin from PVC to biodegradable resins (PHA, PLA, PBS). These biodegradable resins are produced through fermentation processes using microorganisms, which significantly reduce CO2 emissions compared to conventional PVC production from petroleum. The manufacturing process maintains productivity by using similar coating and drying techniques while eliminating harmful greenhouse gas emissions.
3Ease of operation
If PVC wallpaper is burned or disposed of, then the wallpaper can be removed from service, but environmental hormones and noxious gases are produced
Solution Approach 1:
The patent changes the chemical stability parameter of the resin from non-biodegradable PVC to biodegradable resins (PHA, PLA, PBS). These biodegradable resins can be decomposed by microorganisms into water, carbon dioxide, and biomass under appropriate conditions, completely eliminating the production of environmental hormones and noxious gases during disposal. This parameter change transforms the disposal process from a harmful combustion reaction to a benign biological degradation process.
4Ease of operation
If PVC wallpaper is buried in the natural environment, then the wallpaper can be disposed of, but it remains almost permanently causing serious environmental problems
Solution Approach 1:
The patent changes the biodegradability parameter of the resin from permanent persistence (PVC) to complete biodegradation (PHA, PLA, PBS). These biodegradable resins are designed to be decomposed by microorganisms in the natural environment within a reasonable time period, transforming the disposal outcome from permanent environmental pollution to complete natural decomposition. This parameter change enables the wallpaper to return to the environment harmlessly after use.
Data Source
AI summary
The present invention relates to wallpaper and a method for manufacturing the same. The wallpaper may be manufactured at low energy and low costs regardless of an increase in oil price and does not produce greenhouse gases and hazardous substances in the course of manufacture, use or disposal, or during fire. In addition, the wallpaper can decompose readily in the natural environment, even when buried.