Recycled Polyester Linen Closed-Loop System
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Solution Overview
Problem
High occupancy facilities face significant costs and water consumption due to the current methods of procuring, laundering, and replacing linen products, which are also labor-intensive and may cause allergic reactions from harsh chemicals used in institutional laundries.
Innovation Solution
A closed-loop system for utilizing recycled polyester fabric products, including both woven and non-woven polyester fabric products, that involves manufacturing, distributing, segregating, recycling, and re-manufacturing these products within a network of facilities, reducing the need for new materials and harsh chemicals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional linen products are procured and laundered in high occupancy facilities, then clean linen products are provided to guests, but water consumption and operational costs increase significantly
Solution Approach 1:
The patent changes the material parameter from traditional cotton linen to recycled polyester fabric. This material substitution fundamentally alters the care requirements, allowing the linens to be cleaned through rinsing rather than traditional laundering, thereby dramatically reducing water consumption while maintaining acceptable quality standards for hotel use
Solution Approach 2:
The patent replaces the mechanical/chemical laundry system (washers, dryers, detergents, hot water) with a simple rinsing system. Used polyester linens are collected and rinsed with minimal water to remove soil and odors, then air-dried or tumble-dried on low heat, eliminating the need for energy-intensive industrial laundering processes
2Reliability
If institutional laundry processes are used to clean linen products, then sanitation is achieved, but harsh chemicals are introduced that may cause allergic reactions
Solution Approach 1:
The patent replaces chemical-based sanitation (detergents, bleach, fabric softeners) with mechanical/physical cleaning through rinsing. The recycled polyester material's inherent properties allow it to be effectively cleaned and sanitized through water rinsing and heat drying without requiring harsh chemical agents that trigger allergic reactions
Solution Approach 2:
The patent changes the cleaning mechanism parameter from chemical treatment to physical rinsing. The high-temperature rinsing and drying process achieves sanitation through thermal and mechanical action rather than chemical disinfection, eliminating exposure to harmful laundry chemicals while maintaining sanitary conditions
3Reliability
If new linen products are continuously procured to replace worn or damaged items, then adequate supply is maintained, but operational costs increase
Solution Approach 1:
The patent implements a recovery system where used polyester linens are collected, rinsed, and returned to service rather than discarded. The material's durability allows it to be repeatedly used through multiple rinse cycles, and when eventually worn out, the polyester can be recycled into new fabric, creating a circular economy that reduces both waste and operational costs
Solution Approach 2:
The patent establishes a continuous cycle where linens move from use to rinsing back to use, eliminating the discontinuous pattern of procurement and disposal. The simplified rinsing process allows for rapid turnaround and reuse, maintaining continuous availability of clean linens without the need for frequent repurchasing
4Ease of operation
If traditional cotton linen products are used, then comfort and absorbency are provided, but significant water is required for manufacturing and laundering
Solution Approach 1:
The patent changes the material parameter from cotton to recycled polyester, fundamentally altering the water interaction characteristics. Polyester requires minimal water for cleaning compared to cotton, and while it has different absorbency properties, modern recycled polyester can be engineered to provide adequate comfort and moisture management for hotel linen applications
Solution Approach 2:
The patent replaces the water-intensive laundering process with a minimal-rinse system made possible by the polyester material's properties. The material's resistance to staining and ease of cleaning allow it to be effectively maintained with simple rinsing rather than full laundering cycles, dramatically reducing water consumption while maintaining guest comfort
Data Source
AI summary
A closed-loop system for the utilization of recycled woven and/or non-woven polyester fabric products in a plurality of high occupancy facilities includes at least one manufacturing facility to produce a plurality of recycled polyester fabric products from a recycled polyester fabric feedstock. A distribution network transports the plurality of recycled polyester fabric products to each of the plurality of high occupancy facilities, and a housekeeping network distributes and arranges recycled polyester fabric products in a plurality of rooms in a corresponding high occupancy facility. A collection network transports a plurality of compacted polyester fabric products from each of the plurality of high occupancy facilities back to the manufacturing facility. A corresponding closed-loop method for implementing the aforementioned closed-loop system is also disclosed.