Folded Napkin Stack Layout for Fast Dispenser Reloading
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Solution Overview
Problem
The existing methods for folding and stacking paper products, such as napkins, lead to difficulties in loading additional napkins into a dispenser without inadvertently withdrawing multiple napkins, due to the need for interfolding, which is time-consuming and cumbersome.
Innovation Solution
A method of folding paper products with specific centerlines and fold lines, where the first fold line is parallel and offset from the centerline, and the second fold line is perpendicular, forming larger and smaller panels, allowing at least one panel of the second product to be inserted between panels of the first product, facilitating efficient stacking and loading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional folding methods are used with centerline folds, then the napkins are evenly divided into panels, but loading additional napkins into the dispenser becomes time-consuming and cumbersome due to the need for interfolding
Solution Approach 1:
The patent applies asymmetry by folding the napkin about a fold line that is offset from the centerline, creating panels of unequal sizes. This asymmetric folding pattern allows the smaller panel to be easily inserted between panels of adjacent napkins in the dispenser, enabling quick loading without time-consuming interfolding operations. The offset fold line creates a distinctive smaller panel that serves as an easy-to-insert component for rapid stacking.
2Ease of operation
If napkins are folded evenly about centerlines, then the panels are uniformly sized, but this creates difficulty in efficiently loading additional napkins without inadvertently withdrawing multiple napkins
Solution Approach 1:
The patent applies segmentation by dividing the napkin into panels of different sizes through offset folding, creating distinct functional segments. The smaller panel created by the offset fold line serves as a dedicated insertion element that simplifies the loading operation. This segmentation allows the napkin to be loaded independently without affecting adjacent napkins, improving ease of operation while maintaining a relatively simple single-offset-fold pattern.
3Reliability
If traditional interfolding is used to prevent accidental withdrawal of multiple napkins, then individual napkin withdrawal is achieved, but the process becomes cumbersome and time-consuming
Solution Approach 1:
The patent applies preliminary action by pre-forming the offset fold line and creating the smaller panel during the initial folding process, before the napkin is placed in the dispenser. This pre-prepared smaller panel is specifically designed to be inserted between panels of adjacent napkins, establishing the individual withdrawal mechanism in advance. When loading, the user simply needs to insert this pre-formed smaller panel, which automatically creates the separation needed to prevent accidental withdrawal of multiple napkins, eliminating the need for time-consuming interfolding operations at loading time.
Data Source
AI summary
A stack of folded paper products. The stack can include first and second paper products, each having first and second centerlines and first and second fold lines. The first fold line can be substantially parallel to, and offset from, the first centerline. The second centerline can be substantially perpendicular to the first centerline. The second fold line can be substantially parallel to the second centerline. The first and second paper products can each be folded about the first fold line prior to being folded about the second fold line, thereby forming first and second larger panels and first and second smaller panels. At least one of the panels of the second paper product can be at least partially disposed between at least two of the panels of the first paper product.