Biodegradable Seedling Paper Pots with Nutrient Coatings
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Solution Overview
Problem
Conventional seedling pots made of plastic cause soil and environmental pollution due to slow degradation, while biodegradable paper pots fail to maintain shape and structure, leading to malnutrition in soil and root damage from rapid disintegration.
Innovation Solution
A biodegradable seedling paper pot with a paper member coated with an acrylic emulsion resin and a biodegradable composition containing black mica, activated carbon, detoxified sulfur, minerals, and liquid microorganisms, which maintains shape and provides nutrients through controlled biodegradation over 3-4 months, eliminating the need for separate fertilization and reducing labor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If plastic is used for seedling pots, then the pot maintains shape and provides recyclability, but it causes soil pollution and environmental pollution due to slow degradation
Solution Approach 1:
The patent uses a composite structure consisting of a paper base material combined with a biodegradable coating layer containing specific microorganisms and nutrients. This composite approach allows the pot to maintain shape during the seedling growth period while ensuring complete biodegradation after use, thus resolving the contradiction between shape stability and environmental harm.
Solution Approach 2:
The patent changes the degradation parameter of the pot by incorporating a biodegradable coating with specific microorganisms that control the decomposition rate. The coating is designed to maintain structural integrity during the incubation period (3-4 months) and then accelerate biodegradation afterward, transforming the pot from a persistent plastic material into a controlled biodegradable system.
2Object-generated harmful factors
If biodegradable paper is used for seedling pots, then the pot is eco-friendly and biodegradable, but it fails to maintain shape and structure due to rapid disintegration by moisture and microorganisms
Solution Approach 1:
The patent creates a composite material system where a paper base is coated with a specialized biodegradable coating containing microorganisms and nutrients. This coating acts as a protective shell that maintains the pot's shape during the incubation period while allowing controlled biodegradation afterward, thus preserving both environmental friendliness and structural stability.
Solution Approach 2:
The patent applies a preliminary protective coating to the paper pot before use. This coating is specifically designed to resist moisture and maintain structural integrity during the seedling growth period, and then triggers controlled biodegradation after the incubation period ends, thus preventing premature disintegration.
3Object-generated harmful factors
If paper pots are made to be fully biodegradable, then they decompose rapidly by microorganisms, but they cannot maintain the growing soil and seedlings for more than a certain period of time
Solution Approach 1:
The patent changes the temporal parameter of biodegradation by incorporating a coating with specific microorganisms and nutrients that control the decomposition rate. The coating is designed to maintain structural stability during the incubation period (3-4 months) and then accelerate biodegradation afterward, thus extending the service period while ensuring complete biodegradability.
Solution Approach 2:
The patent implements a periodic action pattern where the pot maintains structural integrity during the incubation period and then transitions to rapid biodegradation afterward. This periodic behavior is achieved through the biodegradable coating that controls the decomposition timeline, thus separating the service phase from the degradation phase.
4Stability of the object's composition
If plastic pots are used, then they provide a stable growth environment, but separate fertilization work is required and labor is increased
Solution Approach 1:
The patent merges the functions of the pot structure, fertilizer, and microorganisms into a single integrated biodegradable system. The biodegradable coating contains nutrients and microorganisms that serve as fertilizer, eliminating the need for separate fertilization work while maintaining growth environment stability during the incubation period.
Solution Approach 2:
The patent creates a multi-functional pot that simultaneously serves as a container, fertilizer source, and microorganism carrier. The biodegradable coating provides nutrients and beneficial microorganisms, making the pot universally functional and eliminating the need for additional fertilization operations.
5Ease of operation
If paper pots are used, then they eliminate the need for separate fertilization, but they disintegrate into fiber and lose pot function due to repeated moisture supply
Solution Approach 1:
The patent uses a composite structure where a paper base is combined with a biodegradable coating containing microorganisms and nutrients. This coating protects the paper structure from premature disintegration by moisture while providing fertilizer functions, thus maintaining pot reliability and eliminating fertilization work simultaneously.
Solution Approach 2:
The patent applies a preliminary protective coating to the paper pot that prevents premature disintegration by moisture. This coating is designed to maintain structural integrity during the incubation period and then trigger controlled biodegradation afterward, thus preserving pot function while enabling fertilizer elimination.
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 effectively supplies nutrients to crops, prevents malnutrition, reduces soil pollution, and minimizes root damage by maintaining shape and structure during growth, while biodegrading naturally after the incubation period, thus addressing the limitations of both plastic and paper pots.
Implementation Method 1
a first coating layer coated with an acrylic emulsion resin on inner and outer surfaces of the paper member
Implementation Method 2
a second coating layer coated with a biodegradable coating composition on the first coating layer of the inner surface of the paper member
Implementation Method 3
the biodegradable coating composition may include water, black mica, activated carbon, detoxified sulfur, minerals, liquid microorganisms, and starch
Implementation Method 4
the biodegradable coating composition may include water, black mica, activated carbon, detoxified sulfur, minerals, liquid microorganisms, and starch
Implementation Method 5
the biodegradable coating composition may include water, black mica, activated carbon, detoxified sulfur, minerals, liquid microorganisms, and starch
Data Source
AI summary
The disclosure relates to naturally biodegradable functional seedling paper pot and seedbed including a paper member with an open top, a side portion and a bottom portion, a first coating layer coated with an acrylic emulsion resin on inner and outer surfaces of the paper member, a second coating layer coated with a biodegradable coating composition on the first coating layer of the inner surface of the paper member, and a plurality of holes H formed in the bottom portion of the paper member, in which the biodegradable coating composition of the second coating layer includes water, black mica, activated carbon, detoxified sulfur, minerals, liquid microorganisms, and starch. According to the examples of the present disclosure, it is possible to supply nutrients necessary for the growth of crops by the biodegradation process of compositions that biodegrade completely after 3 to 4 months, help with the crop growth and prevent malnutrition in soil without separate fertilization works, eliminate the risk of damaging the seedling roots because there is no need for any separating work after seedling, reduce labor, and solve the soil pollution problems.