Polymer-Enhanced Wiping Sheets for Dry Dirt Capture
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Solution Overview
Problem
Conventional wiping products often fail to effectively clean and retain non-aqueous materials from dry surfaces, requiring moisture to function properly and tend to generate lint, lacking the ability to capture dirt particles effectively.
Innovation Solution
Incorporating an additive composition containing a thermoplastic resin, such as an ethylene and octene copolymer, into the base sheet to enhance its ability to capture dirt particles and improve strength without compromising softness or liquid absorption, forming a discontinuous film that increases friction and attracts dirt while allowing liquid absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional wiping products are used, then they can be manufactured with basic strength and absorbency, but they fail to effectively capture and retain dirt particles from dry surfaces
Solution Approach 1:
The patent modifies the surface properties of the wiping product by incorporating polymers and particles with specific friction coefficients and electrostatic charge characteristics, changing the physical parameters of the wiping surface to enhance dirt particle capture from dry surfaces
Solution Approach 2:
The wiping product is constructed as a composite material system combining base wiping fibers with added polymers and particles that have complementary properties for capturing different types of contaminants, creating a multi-functional cleaning surface
2Strength
If wiping products are made with higher strength, then they can resist tearing, but they tend to generate more lint on surfaces
Solution Approach 1:
The patent applies strength-enhancing polymers selectively at specific locations within the wiping product structure, such as at fiber intersection points or along stress pathways, rather than uniformly throughout, thereby reinforcing the product where needed while minimizing overall lint generation
Solution Approach 2:
The patent uses a disposable wiping product approach where the entire product is designed for single-use, eliminating the need for repeated washing and reusing that would otherwise cause lint accumulation from fabric degradation
3Quantity of substance
If wiping products are designed to be highly absorbent, then they can pick up liquids, but they require moisture to function and cannot effectively clean dry surfaces
Solution Approach 1:
The wiping product is designed with dual-functionality by incorporating both absorbent materials for liquid uptake and dry-cleaning components with high friction and electrostatic properties, enabling the single product to effectively clean both wet and dry surfaces without requiring separate products
4Reliability
If additive composition is applied to enhance cleaning ability, then dirt particle capture improves, but product complexity increases
Solution Approach 1:
The patent combines multiple functional additives (polymers for friction enhancement, particles for electrostatic capture, and dispersing agents) into a single integrated additive composition formulation that can be applied together, simplifying the manufacturing process while achieving multiple cleaning functions simultaneously
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 treated wiping products demonstrate improved cleaning performance, increased strength, and reduced linting, with enhanced ability to capture dirt particles and maintain softness, as evidenced by higher Cleaning Test Values and Stick-Slip Test results, while minimizing sheet blocking.
Implementation Method 1
forming a discontinuous film that increases friction and attracts dirt
Implementation Method 2
aqueous polymer dispersion...adhering particles to the wiping product
Data Source
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AI summary
Wiping products are disclosed containing an additive composition that enhances the cleaning properties of the product. The additive composition, for instance, comprises an aqueous dispersion containing an alpha-olefin polymer, an ethylene-carboxylic acid copolymer, or mixtures thereof. The alpha-olefin polymer may comprise an interpolymer of ethylene and octene, while the ethylene-carboxylic acid copolymer may comprise ethylene-acrylic acid copolymer. The additive composition may also contain a dispersing agent, such as a fatty acid.