Absorbent Core Embossing for Consistent Fold Location
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Solution Overview
Problem
The inconsistent folding of disposable absorbent articles due to the bulk of absorbent cores leads to undesirable bulges, ripples, and creases, affecting product performance and manufacturing efficiency.
Innovation Solution
Embossing fold lines into absorbent cores to guide consistent folding, ensuring predictable fold locations and improved package smoothness and squareness, while managing fluid management characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If absorbent cores with bulk are used, then absorption capacity is improved, but folding consistency deteriorates
Solution Approach 1:
The embossing process creates fold lines and fold regions in advance before the folding operation. This preliminary action defines exactly where the bulk material should fold, allowing the absorbent core to be folded consistently despite its bulk. The embossed fold regions act as pre-defined pathways that guide the folding process.
Solution Approach 2:
The embossing process creates localized fold regions with specific properties (compressed, defined geometry) that are different from the surrounding bulk material. This local quality change allows the fold regions to be more compliant and easier to fold, while the rest of the absorbent core maintains its bulk and absorption capacity.
2Manufacturing precision
If embossing fold lines is implemented, then folding consistency is improved, but device complexity increases
Solution Approach 1:
The embossing process is integrated with the existing manufacturing line for absorbent articles. The embossing step is combined with other processing steps (such as heating or pressing) that already occur during manufacturing, thereby adding the fold line creation capability without requiring a completely separate complex system.
3Manufacturing precision
If consistent folding is achieved, then package quality is improved, but manufacturing time increases
Solution Approach 1:
By pre-embossing the fold lines and creating fold regions during the manufacturing process (before packaging), the actual folding operation becomes much faster and more consistent. The preliminary embossing action prepares the material so that the subsequent folding requires minimal additional time and force, maintaining high production speeds while achieving consistent results.
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 embossed fold lines facilitate consistent folding, reducing waste and delays, and enhance the quality of the final product package by ensuring smoothness and squareness, while maintaining effective fluid direction within the absorbent articles.
Implementation Method 1
embossing at least one fold line into each core, each fold line defining a fold region
Data Source
AI summary
A process for manufacturing a package of folded absorbent articles is disclosed. In one embodiment, the process includes providing a plurality of absorbent cores, and embossing at least one fold line into each core, each fold line defining a fold region. The process further includes folding each core along the fold region of each fold line to create a plurality of folded absorbent garments, and placing the plurality of folded absorbent garments into a container. In particular embodiments, each core can include two transversely opposed absorbent ears. The process can include folding each core along the fold region of each fold line to move each ear closer to a longitudinal centerline of the core to create a plurality of folded absorbent garments. A package of folded absorbent articles is also disclosed.