Gelled Hydration Medium With Smectite Clay for Sustained Flower Hydration
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Solution Overview
Problem
Transportation of cut flowers in water leads to issues such as water spillage, bacterial growth, space inefficiency, and insufficient water uptake, resulting in early wilting, and existing flower gels do not effectively provide a sustained water supply.
Innovation Solution
A flower gel comprising disc-shaped smectite clay nanoparticles with specific charge distribution and gel destabilizing agents like acidulants or metal cations that form a thixotropic matrix, slowly releasing water for uptake by cut flowers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If cut flowers are transported in water, then water supply to stems is ensured, but water spillage and bacterial growth occur
Solution Approach 1:
The invention uses phase transition of water between gel and liquid states. The hydration medium is applied as a gel that transforms to liquid upon contact with cut stems, providing water supply while eliminating spillage during transport. This resolves the contradiction by maintaining water in a stable gel form during storage and transport, then enabling liquid-like water uptake when needed.
Solution Approach 2:
The gel matrix acts as an intermediary between the water source and the cut stems. It provides a controlled interface that releases water gradually to stems while preventing uncontrolled spillage. The gel structure mediates between the need for water supply and the need to prevent harmful effects of free water during transport.
2Quantity of substance
If cut flowers are transported in water, then stems remain hydrated, but transportation space efficiency decreases due to vertical positioning requirement
Solution Approach 1:
By using gel phase for water delivery, the invention eliminates the need for vertical positioning during transport. The gel maintains water in contact with stems through its semi-solid structure, allowing horizontal or any-orientation transport while maintaining hydration. This reduces the volume and space requirements compared to traditional vertical water transport methods.
3Object-affected harmful factors
If aqueous gel is used for flower transport, then water spillage is reduced, but water uptake by flowers is insufficient leading to early wilting
Solution Approach 1:
The gel undergoes phase transition from gel state during transport to liquid state during water uptake. This transition enables the gel to maintain its water-holding capacity during transport while becoming sufficiently fluid to allow effective water uptake by cut stems, thereby preventing early wilting and ensuring flower longevity.
Solution Approach 2:
The invention changes key parameters of the hydration medium including pH, ionic composition, and gel concentration to optimize both gel stability during transport and water availability for uptake. By adjusting these parameters, the gel maintains structural integrity during transport while ensuring adequate water release to prevent wilting.
4Stability of the object's composition
If synthetic polymers are used for gel formation, then gel structure is achieved, but environmental issues arise
Solution Approach 1:
The invention replaces persistent synthetic polymers with biodegradable natural polymers that provide temporary gel structure during transport but decompose environmentally afterwards. This resolves the contradiction by achieving the necessary gel stability for transport while eliminating long-term environmental harm through biodegradability.
Solution Approach 2:
The invention uses composite hydration mediums combining natural polymers with minerals or other natural substances to achieve gel structure without synthetic polymers. This composite approach maintains the necessary structural properties for transport while ensuring environmental compatibility through natural, biodegradable components.
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 gel provides a sustained water supply to cut flowers during transport, maintaining freshness and reducing wilting, while avoiding environmental issues associated with synthetic polymers.
Implementation Method 1
the smectite clay nanoparticles can form a gel matrix that traps water. This gel matrix becomes liquid upon application of shear and recovers its gel state when shear is long applied
Implementation Method 2
This gel matrix becomes liquid upon application of shear and recovers its gel state when shear is long applied, i.e. it shows thixotropic behaviour
Implementation Method 3
addition of protons, metal cations and/or ammonium cations causes the smectite clay gel to slowly release water whilst retaining its gel character. This phenomenon can advantageously be used to ensure adequate water supply to cut flowers during transport
Implementation Method 4
The flower gel of the present invention comprises disc-shaped smectite clay nanoparticles... When dispersed in water, due to the peculiar charge distribution on the particle surface, the smectite clay nanoparticles can form a gel matrix that traps water
Data Source
AI summary
The invention provides a flower shipment kit comprising:a container holding an aqueous flower gel; andone or more cut flowers whose stems are immersed in the aqueous flower gel;wherein the aqueous flower gel comprises (i) 1-4 wt. % of disc-shaped smectite clay nanoparticles having two opposing flat surfaces that are negatively charged and a rim that is positively charged, and (ii) 0.01-250 mM of one or more gel destabilizing agents selected from acidulants, dissolved metal cations and dissolved ammonium cations.The flower gel of the present invention slowly releases water over time in a way that enables cut flowers to take it up immediately.The invention also relates to a kit of parts for preparing a gelled hydration medium and to a method of preparing such a gelled hydration medium.