Biodegradable tea leaf straw and method for making the same
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Solution Overview
Problem
Existing plastic straws pose environmental pollution risks due to non-biodegradability, while alternatives like metal, glass, and paper straws have drawbacks such as high carbon emissions, fragility, health risks, and chemical reactivity, leading to limited adoption and high costs.
Innovation Solution
A biodegradable tea leaf straw composed of a composite material containing tea leaf powder and inorganic filler powder, bound with biodegradable materials, which is extruded into a tubular form to maintain aroma and strength, decomposing within six months.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If plastic straws are used, then ease of manufacture and low cost are achieved, but environmental pollution and non-biodegradability occur
Solution Approach 1:
The patent uses a composite material consisting of tea leaf powder (1-50 wt%), inorganic filler powder (50-99 wt%), and biodegradable material (35-65 wt%) to create a straw that is both environmentally friendly and manufacturable. This composite approach allows the product to decompose naturally while maintaining structural integrity during use.
2Strength
If metal straws are used, then durability and reusability are improved, but carbon dioxide emissions and manufacturing complexity increase
Solution Approach 1:
The patent changes the material parameters from metal to a biodegradable composite, specifically using tea leaf powder combined with inorganic fillers and biodegradable polymers. This parameter change maintains sufficient durability for single-use applications while eliminating the high carbon emissions associated with metal production.
3Reliability
If glass straws are used, then reusability and non-reactivity are improved, but fragility and manufacturing energy consumption increase
Solution Approach 1:
The patent adopts a disposable straw made from biodegradable materials that performs the function of a reusable glass straw during its brief usage period. The tea leaf composite provides sufficient non-reactivity and structural integrity for single-use applications, eliminating the need for high-temperature glass manufacturing.
4Object-affected harmful factors
If paper straws are used, then biodegradability is improved, but chemical reactivity and health risks increase
Solution Approach 1:
The patent applies local quality by using tea leaf powder specifically in the straw structure, which provides natural aromatic properties and maintains beverage flavor without the chemical reactivity issues of paper straws. The tea leaf composite decomposes naturally without releasing harmful substances.
5Object-affected harmful factors
If biodegradable materials are used, then environmental safety is improved, but manufacturing cost increases
Solution Approach 1:
The patent merges tea leaf powder (an agricultural byproduct) with inorganic fillers and biodegradable materials to create a cost-effective composite. This combination leverages the low cost of agricultural waste while achieving environmental safety and functional performance.
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 straw effectively retains tea aroma without affecting beverage taste, offers low manufacturing costs, and fully decomposes in ambient soil, reducing plastic pollution and ensuring environmental safety.
Implementation Method 1
The present invention utilizes a specific material configuration where the tea leaf powder is roasted and sterilized to fully release its aroma... When inserted into a liquid, the tea leaves do not dissolve, preserving the beverage's flavor... All raw materials used in the manufacturing process of the present invention can be quickly decomposed by environmental microorganisms. When buried in typical room-temperature soil, the material decomposes in about six months, leaving only water, carbon dioxide, and inorganic filler powder.
Data Source
AI summary
A biodegradable tea leaf straw suitable for use above room temperature and its manufacturing method. The straw includes a tubular body made from a composite. The composite includes the following raw materials by weight percentage: 35% to 65% of tea leaf mixture and 35% to 65% of biodegradable material. The tea leaf mixture contains tea leaf powder and inorganic filler powder. A particle size of the tea leaf powder is smaller than that of the inorganic filler powder. The tea leaf straw retains the natural aroma of tea leaves. All raw materials used in the manufacturing process can be quickly decomposed by environmental microorganisms. The tea leaf straw does not dissolve in the beverage, thereby not affecting its flavor during consumption. The tea leaf straw is feature can attract consumers to use these straws as an alternative to existing plastic straws.