System and method for making an ice straw
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Solution Overview
Problem
The environmental impact of plastic and paper drinking straws is significant due to their non-renewable resource consumption and pollution, necessitating a more sustainable alternative.
Innovation Solution
A method and system for creating degradable drinking straws made from frozen liquids, such as ice, which are formed by freezing a liquid around a tube and then partially melting it to detach from the tube, allowing for a fluid conduit that cools and degrades over time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If plastic drinking straws are used, then durability and functionality are maintained, but environmental pollution and resource consumption increase
Solution Approach 1:
The patent changes the physical state parameter of water from liquid to solid (ice) to create the straw material. This phase change enables the straw to be durable when frozen while being environmentally friendly, as it naturally degrades when it melts, resolving the contradiction between durability and environmental harm
Solution Approach 2:
The invention utilizes phase transitions of water (freezing to form the straw structure, then melting to degrade) as the core mechanism. The straw is formed by freezing liquid water around a mold, and later degrades through melting, providing both durability during use and environmental friendliness through natural degradation
2Object-affected harmful factors
If paper drinking straws are used, then plastic pollution is reduced, but resource consumption and environmental impact increase
Solution Approach 1:
The patent uses water in its liquid form as the raw material, which is then transformed through freezing into solid ice straws. Water is an abundant renewable resource, eliminating the need to cut down trees or consume non-renewable resources, thus resolving the contradiction between reducing plastic pollution and minimizing resource consumption
Solution Approach 2:
The ice straws are designed as disposable items that naturally degrade through melting. This approach uses an abundant, renewable resource (water) to create single-use products that eliminate waste accumulation, resolving the contradiction between environmental protection and resource consumption
3Ease of manufacture
If ice straws are formed by freezing liquid around a tube, then degradable drinking straws are created, but the freezing process requires precise temperature control
Solution Approach 1:
The patent employs the natural freezing property of water to form the straw structure. By placing the liquid-containing mold in a freezer environment, the water automatically freezes around the tube to create the straw shape, eliminating the need for complex temperature control systems and simplifying the manufacturing process
Solution Approach 2:
The invention relies on the phase transition of water from liquid to solid at its natural freezing point. This well-understood physical phenomenon requires only standard freezer temperatures, making the manufacturing process simple and accessible without requiring precise or extreme temperature control
4Ease of manufacture
If the frozen straw is heated to melt and release from the tube, then the straw is successfully formed, but energy is consumed
Solution Approach 1:
The patent uses the phase transition of ice to liquid water through melting to release the formed straw from the tube mold. This natural physical process requires minimal energy input compared to mechanical release methods, and the same phase transition mechanism that forms the straw also enables its release and eventual degradation
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
This approach reduces plastic pollution and resource consumption by providing a biodegradable straw that cools beverages while minimizing waste.
Implementation Method 1
filling the tube with a first fluid at a temperature at or below the freezing point of the liquid, causing at least a portion of the liquid in the reservoir to freeze around the tube
Implementation Method 2
filling the tube with a second fluid at a temperature at or above the melting point of the degradable drinking straw, causing the degradable drinking straw to partially melt at the contact points with the surface of the tube
Data Source
AI summary
A system and method for making degradable drinking straws made of ice (or other frozen liquid(s)). The system may comprise one or more tubes configured to extend into a reservoir. The tubes may each be in fluid communication with a connecting bar, wherein fluid (e.g., a liquid and/or a gas) within the connecting bar may be directed into the tubes. The system may comprise a source of cold fluid and a source of hot fluid in fluid communication with the connecting bar. The degradable straw may comprise a wall (or thickness) made of ice with a hollow, cavity, and/or void space through the straw. The degradable straw may serve to cool the drink (as any other piece of ice within the drinking liquid) via placement in a drink and/or via the drink passing through the void space into a user's mouth.