Biodegradable Nonwoven Textile Seed Dispensing and Needle Punching
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Solution Overview
Problem
Existing methods for producing biodegradable nonwoven textiles comprising seeds are inefficient in providing optimal conditions for seed germination, as they often result in thick, opaque materials that hinder seed growth.
Innovation Solution
A machine and method that incorporate a seed distributing unit positioned in the cross-lapping portion of a nonwoven textile machine, using biodegradable fibers of varying sizes and a rotatable axle for controlled seed dispensing, allowing for adjustable seed placement and integration with a needle-punching process to create a thin, lightweight textile.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple layers of coarse fibres and prefabricated nonwoven fabric are used to protect seeds, then seed protection is improved, but textile thickness increases and light penetration to seeds deteriorates
Solution Approach 1:
The patent changes the physical parameters of the fibres by using biodegradable fibres of varying sizes (0.5-7.0 decitex and 20-70 mm length) instead of uniform coarse fibres. This parameter variation allows the textile to be thin enough for light penetration while still providing protection, as smaller fibres deteriorate faster and create light pathways during germination.
Solution Approach 2:
The patent uses a composite structure combining biodegradable fibres of different sizes and properties. The mixture of fine and coarse fibres creates a multi-functional material that provides both protection and light penetration, resolving the contradiction between these two requirements.
2Strength
If uniform coarse fibres are used throughout the textile, then structural strength is maintained, but seed germination is hindered due to insufficient light penetration
Solution Approach 1:
The patent applies local quality by having different fibre sizes in different proportions throughout the textile. Areas with seeds have higher concentration of fine biodegradable fibres that deteriorate faster to allow light through, while maintaining overall structural integrity through the distribution of coarser fibres.
Solution Approach 2:
The patent changes the fibre size parameter from uniform to variable, using a mix of 0.5-7.0 decitex fibres. This parameter change enables the textile to provide both strength (through coarser fibres) and germination-friendly conditions (through finer fibres that create light pathways).
3Reliability
If a thick nonwoven textile is produced to protect seeds, then protection is improved, but the textile becomes opaque and hinders seed growth
Solution Approach 1:
The patent changes the thickness parameter by using a single-layer construction with biodegradable fibres of varying sizes instead of multiple thick layers. The fibre size distribution (0.5-7.0 decitex) allows the textile to remain thin while providing protection, as smaller fibres create light pathways during deterioration.
Solution Approach 2:
The patent uses a composite material approach with biodegradable fibres of different sizes to achieve a thin yet protective textile. The combination of fine and coarse fibres creates a material that provides protection without excessive thickness, enabling light penetration for seed germination.
Data Source
AI summary
A machine and a method for producing biodegradable nonwoven textile including seeds including a seed distributing machine unit, positioned in a cross-lapping portion of the nonwoven textile machine. The seed distributing machine unit includes at least one receptacle for seeds having a dispensing opening for regulated outlet of seeds onto a veil of biodegradable fibres. A needle punching portion is situated after the cross-lapping, seen in the direction of the biodegradable nonwoven textile production line of the machine, for needle-punching of the veil of biodegradable fibres.