Fibrous structures comrpising discrete cells
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Fibrous structures, such as paper towels, often face a contradiction between achieving superior product performance and consumer-desired aesthetics, as existing papermaking belts and embossing processes either compromise on smoothness or visual appeal.
Innovation Solution
The use of papermaking belts with discrete knuckle and pillow structures, combined with specific emboss patterns, to create fibrous structures that balance performance and aesthetics by forming complex cell patterns with distinct regions, enhancing properties like softness, absorbency, and visual appeal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If traditional papermaking belts with continuous knuckle and pillow structures are used, then manufacturing process is simple and production efficiency is maintained, but the fibrous structure lacks complex surface topology and has limited aesthetic appeal
Solution Approach 1:
The patent divides the continuous knuckle and pillow structures into discrete, segmented elements arranged in specific patterns. The belt includes multiple discrete knuckles and discrete pillows with defined spacing and geometric arrangements, creating complex surface topology while maintaining manufacturability through modular design
Solution Approach 2:
The patent applies different structural characteristics to different regions of the belt. Specific areas have dense knuckle arrangements while other areas have pillow structures, with varying sizes and spacings. This local variation creates diverse surface topology patterns that enhance both aesthetics and functional properties
2Shape
If emboss patterns are applied to enhance visual appeal, then aesthetic properties are improved, but smoothness and softness of the fibrous structure deteriorate
Solution Approach 1:
The patent incorporates the embossing pattern directly into the papermaking belt structure itself, rather than applying embossing as a separate post-processing step. The discrete knuckles and pillows on the belt create the desired surface topology during the forming process, eliminating the need for subsequent embossing that would compromise smoothness
Solution Approach 2:
The patent merges the structural support function with the aesthetic embossing function into a single integrated belt design. The same discrete knuckle and pillow structures that provide mechanical support also create the visual pattern, combining form and function in one element
3Ease of operation
If discrete cell structures with legs and concavities are implemented, then cloth-like feel and absorbency are improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent segments the fibrous structure into discrete cells with defined legs and concavities. Each cell is a distinct geometric unit with specific dimensional characteristics, arranged in repeating patterns on the belt. This segmentation enables precise control over cell morphology while maintaining manufacturing feasibility through standardized production
Solution Approach 2:
The patent optimizes specific geometric parameters of the discrete cells, including leg dimensions, concavity depth, and cell spacing, to achieve the desired cloth-like feel and absorbency. By carefully controlling these parameters within defined ranges, the patent balances manufacturing precision requirements with performance outcomes
Data Source
AI summary
Belts and fibrous structures of the present disclosure may comprise discrete cells comprising one or more legs and/or one or more concavities in certain patterns or Cell Groups. The cells may be discrete knuckles or pillows and the fibrous structures may further comprise an emboss.