Porous Engineered Yarn for Enhanced Fabric Water Absorption
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Solution Overview
Problem
There is a need to enhance the absorptive properties of fabrics used in applications like toweling, rugs, and bedding beyond what is achievable with conventional cotton fibers, while maintaining sustainability and softness.
Innovation Solution
The development of an eco-friendly engineered yarn that incorporates soluble fibers like wool or silk, which are dissolved during the yarn dyeing process using an alkali or enzyme solution, increasing the porosity and absorptive capabilities of the fabric.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the density of fibers in the yarn is increased to improve fabric strength, then the yarn's ability to absorb water decreases
Solution Approach 1:
The patent applies porous materials by incorporating hollow fibers into the yarn structure. These hollow fibers create internal void spaces that increase water absorption capacity without adding solid fiber density. The hollow structure provides both mechanical strength through the fiber framework and absorption capacity through the internal cavities, resolving the contradiction between strength and absorption.
Solution Approach 2:
The patent uses composite materials by combining solid fibers with hollow fibers in a blended yarn. This composite structure allows the solid fibers to provide tensile strength while the hollow fibers contribute absorption capacity. The synergistic combination enables the fabric to simultaneously achieve both strength and water absorption without compromising either property.
2Quantity of substance
If thicker towels with deeper pile are used to increase surface area, then absorption properties improve, but drying time increases
Solution Approach 1:
The hollow fibers create a porous network throughout the fabric structure that enables rapid water transport through capillary action. Water is quickly drawn into the hollow cavities and moved through the fabric thickness, preventing water from pooling on the surface. This accelerates the drying process by facilitating efficient water evacuation while maintaining high absorption capacity.
Solution Approach 2:
The patent transitions from two-dimensional surface absorption to three-dimensional volumetric absorption by utilizing the internal hollow space of the fibers. This dimensional change allows water to be absorbed and transported throughout the volume of each fiber rather than only on the outer surface, significantly improving drying kinetics while maintaining absorption capacity.
3Quantity of substance
If conventional cotton fibers are used to maintain sustainability and softness, then absorptive properties are limited
Solution Approach 1:
The patent creates a composite yarn system combining conventional cotton fibers with hollow synthetic fibers. The cotton provides sustainability, softness, and surface absorption, while the hollow fibers contribute volumetric absorption and rapid wicking. This composite approach allows the fabric to exceed the absorptive performance ceiling of conventional cotton while preserving its desirable ecological and tactile properties.
Solution Approach 2:
The patent applies local quality by assigning different functional roles to different fiber components within the yarn. Conventional cotton fibers are positioned to provide softness and initial surface contact absorption, while hollow fibers are distributed throughout to provide rapid water transport and volumetric storage. This functional differentiation allows each component to optimize its local contribution to overall absorption 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 resulting fabric exhibits superior absorptive properties and faster drying times, achieving enhanced water absorption and wicking capabilities while maintaining sustainability and softness.
Implementation Method 1
the soluble fibers are dissolved in an alkali or enzyme solution to create highly porous yarns
Implementation Method 2
the pile loops first remove the droplet by drawing the droplet into the spaces between the fibers in the yarn. The water is then wicked throughout the length of the pile and into the ground weave of the fabric
Data Source
Figure 1A
Figure 1B
Figure 2A
AI summary
This disclosure relates generally to the preparation of eco-friendly engineered fabric, and more particularly to terry fabric and variations thereof. In one embodiment, a terry fabric is comprised of a soluble fiber blend, blended with cotton fibers, where the soluble fibers are dissolved in a caustic or enzyme solution to create highly porous yarns.