Stitch-Bonded Disinfecting Wipe Structure for Low-Weight Scrubbing
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Solution Overview
Problem
Existing sanitizing cleaning wipes are bulky and costly due to the need for substantial fiber content to prevent tearing, and they lack effective surface texture for aggressive cleaning.
Innovation Solution
A multi-bar stitch-bonded construction with low denier yarns and textured spun yarns in a zigzag pattern is used to create a lightweight, crepe-like structure with extended float segments for enhanced scrubbing and stability, allowing for a disinfecting solution to be applied.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If substantial fiber content is used to prevent tearing, then strength is improved, but weight and bulkiness increase
Solution Approach 1:
The patent combines a light-weight nonwoven substrate with a stitch-bonded construction incorporating textured yarns and stabilizing yarns to create a composite structure that achieves tear resistance without requiring substantial fiber content throughout the entire wipe body
Solution Approach 2:
The patent divides the wipe into functionally distinct regions: a light-weight substrate base layer and localized stitch-bonded areas with textured yarns that provide both strength and scouring function, allowing different parts to serve different purposes efficiently
2Strength
If substantial fiber content is used to prevent tearing, then strength is improved, but packaging difficulty increases
Solution Approach 1:
The composite construction of light-weight substrate with localized stitch-bonded reinforcement creates a structurally efficient wipe that is both strong and compact, facilitating easier packaging compared to uniformly heavy nonwoven wipes
3Strength
If substantial fiber content is used to prevent tearing, then strength is improved, but cost increases
Solution Approach 1:
The patent uses a composite structure where a minimal amount of substrate material is reinforced at critical areas through stitch-bonding with textured and stabilizing yarns, reducing total fiber consumption while maintaining strength
Solution Approach 2:
The stitch-bonded construction with textured yarns is applied locally at the surface where scouring and cleaning functions are needed, rather than using substantial fiber content throughout the entire wipe, optimizing material distribution
4Reliability
If flat or textured non-woven sheets are used as carriers, then carrier function is improved, but scouring ability is limited
Solution Approach 1:
The patent creates a composite surface structure where textured spun yarns are stitch-bonded to the nonwoven substrate, combining the carrier reliability of the substrate with the enhanced scouring ability of the textured yarn surface
Solution Approach 2:
The textured yarns are concentrated at the surface layer where cleaning contact occurs, providing aggressive scouring capability exactly where needed, while the underlying substrate maintains carrier function
5Weight of moving object
If light-weight substrate is used, then weight is reduced, but stability and tear resistance worsen
Solution Approach 1:
The patent combines a light-weight nonwoven substrate with a stitch-bonded construction using textured yarns and stabilizing yarns to create a composite structure that achieves tear resistance without requiring substantial fiber content
Solution Approach 2:
The wipe is segmented into a light-weight substrate base and localized stitch-bonded reinforcement areas, providing strength where needed while maintaining overall light weight
Data Source
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AI summary
A disinfecting cleaning wipe of stitch-bonded construction. The wipe includes a stitching substrate of fibrous nonwoven material having a mass per unit area of not more than 30 grams per square meter. A first plurality of stitching yarns is disposed in stitched relation through the stitching substrate in a pattern of substantially parallel linear stitch lines extending in a first direction across the stitching substrate. At least a second plurality of stitching yarns is disposed in stitched relation through the stitching substrate in a repeating zigzag pattern to define a first group of surface yarn float segments extending diagonally between stitch positions at opposing linear stitch lines. A disinfecting solution at least partially saturates the cleaning wipe.