Disposable Cellulosic Wiper Composition for Low-Solution Residue Removal
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Solution Overview
Problem
Existing high-efficiency wipers for cleaning surfaces are difficult and expensive to produce, and they are not readily recyclable, while also requiring biocides and cleaning solutions to remove residue effectively.
Innovation Solution
A disposable cellulosic wiper made with pulp-derived papermaking fibers and up to 75% fibrillated regenerated cellulose microfiber, which forms a microfiber network for efficient residue removal with reduced cleaning solution usage, allowing for biodegradability and recyclability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If thermoplastic fibers are used to make high efficiency wipers, then cleaning performance is improved, but manufacturing cost increases and recyclability is reduced
Solution Approach 1:
The patent changes the material parameter from thermoplastic fibers to cellulosic fibers (wood pulp, cotton, or their blends), fundamentally altering the chemical composition while maintaining the physical structure needed for high efficiency cleaning. This substitution reduces manufacturing cost and improves recyclability while preserving cleaning performance through optimized fiber morphology and network structure.
Solution Approach 2:
The invention uses composite cellulosic fiber structures combining different types of cellulose fibers (wood pulp, cotton, or their blends) to achieve both economic viability and high cleaning performance. The composite structure leverages the complementary properties of different cellulosic fibers to match or exceed thermoplastic fiber performance at lower cost.
2Reliability
If thermoplastic fibers are used for wiper production, then cleaning efficiency is enhanced, but environmental friendliness deteriorates
Solution Approach 1:
The patent fundamentally changes the material composition from non-biodegradable thermoplastic fibers to biodegradable cellulosic fibers, transforming the environmental profile while maintaining cleaning efficiency through optimized fiber network architecture and surface properties.
Solution Approach 2:
The invention embraces the disposable nature of wipers by using biodegradable cellulosic materials that can be safely discarded after single use, eliminating the environmental persistence problem associated with thermoplastic fibers while maintaining effective cleaning performance.
3Ease of manufacture
If conventional wiper materials are used, then production cost is reduced, but residue removal capability is insufficient
Solution Approach 1:
The patent optimizes the physical parameters of cellulosic fibers, including fiber length, diameter distribution, and network density, to enhance residue removal capability. The refined fiber network structure creates optimal surface contact and mechanical action for removing residues, matching thermoplastic fiber performance despite using economical cellulosic materials.
Solution Approach 2:
The invention employs composite cellulosic fiber structures with optimized ratios of different fiber types and sizes to achieve superior residue removal capability, combining the cost-effectiveness of cellulosic materials with the high-performance characteristics previously only available from expensive thermoplastic fibers.
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 wiper effectively removes residue with reduced cleaning solution use, enhancing cleaning efficiency and reducing the need for biocides, while being economically produced and recyclable.
Implementation Method 1
fibrillated regenerated cellulosic microfiber... forms a microfiber network for efficient residue removal
Data Source
AI summary
A high efficiency disposable cellulosic wiper includes a percentage by weight of pulp-derived papermaking fibers, and a percentage by weight of independent regenerated cellulosic microfibers having a number average diameter of less than about 2 microns and a characteristic Canadian Standard Freeness (CSF) value of less than 175 ml. The microfibers are selected and present in amounts such that the wiper exhibits a relative oil residue removal efficiency of at least 150% as compared with a like sheet without independent regenerated cellulosic microfibers.