Free Fibre Padding Structure with Variable Lengths and Antistatic Treatment
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Solution Overview
Problem
Conventional loose fibre padding products lose their insulation properties after washing due to fibre clumping and entanglement, resulting in uneven distribution and reduced thermal performance.
Innovation Solution
A fibre structure with variable lengths from 2 to 28 mm and specific titre ranges, treated with antistatic agents and processed using a method involving blending, ventilation, and carding to maintain crimp and curl properties, preventing fibre stress and enabling high 'fill power' and insulating performance comparable to high-quality down.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If conventional loose fibres are used for padding, then the product has optimal softness and appearance similar to down, but the fibres clump and entangle after washing, creating uneven distribution and reducing insulation
Solution Approach 1:
The patent applies preliminary anti-static treatment to fibres before they are processed into padding products. This pre-treatment prevents fibres from clumping and entangling during subsequent washing, maintaining uniform fibre distribution throughout the product's lifespan. The anti-static agent is applied in advance to eliminate the harmful electrostatic effects that cause fibre aggregation.
Solution Approach 2:
The patent converts the harmful effect of static electricity, which causes fibre clumping, into a beneficial property by applying anti-static agents. These agents transform the fibres' surface properties to prevent electrostatic attraction between fibres, thereby eliminating the clumping problem while preserving the desirable softness and appearance of loose fibre padding.
2Ease of manufacture
If standard fibre length (36-65 mm) is used, then the product is easier to manufacture, but the filling power and insulating performance are reduced
Solution Approach 1:
The patent changes the critical parameter of fibre length from the conventional 36-65 mm range to a significantly shorter range of 3-12 mm. This parameter change increases the number of fibres per unit volume, thereby enhancing filling power and insulating performance. The shorter fibres also maintain ease of manufacture by being suitable for existing processing equipment while achieving superior thermal insulation properties.
3Object-affected harmful factors
If fibres are washed to maintain cleanliness, then hygiene is improved, but the fibres become entangled and insulation properties are lost
Solution Approach 1:
The patent applies anti-static treatment to fibres before product assembly, creating a protective effect that persists through washing cycles. This preliminary action ensures that during subsequent washing for hygiene, fibres remain separated and do not entangle, thereby maintaining both cleanliness and insulation performance throughout the product's use life.
4Temperature
If down is used for padding, then superior insulation and comfort are achieved, but production costs are significantly higher
Solution Approach 1:
The patent uses short synthetic fibres (3-12 mm) that are more economical than down, achieving comparable insulation performance through optimized fibre parameters and anti-static treatment. This approach provides a cost-effective alternative to expensive natural down while maintaining reliable thermal insulation properties.
Solution Approach 2:
The patent optimizes fibre parameters including length (3-12 mm), titre (0.8-4 den), and surface treatment to achieve down-like insulation performance. By carefully controlling these parameters, the patent creates a synthetic fibre product that matches or exceeds down's thermal properties at lower cost.
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 method achieves significantly higher insulating power with reduced material usage, maintaining optimal thermal insulation even after repeated washing, and allows for adjustable breathability and density regulation.
Implementation Method 1
treated with antistatic agents
Implementation Method 2
maintaining optimal thermal insulation even after repeated washing
Data Source
AI summary
A free fibre or loose fibre structure for padding comprising a shell containing a plurality of free or loose fibres, said structure being characterised in that said free or loose fibres have a cut that reproduces the length, and in part the fineness, of genuine goose down.