Multilayer Paper Strip Star-Shaped Cross Section Cushioning
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Solution Overview
Problem
Existing methods for producing cushioning products from paper strips do not effectively utilize the structural properties of multilayered paper strips to achieve optimal cushioning and resilience, particularly in packaging applications.
Innovation Solution
A method involving a flat, longitudinal two- or multilayered paper strip with connected middle sections and unconnected marginal areas, which is opened to form a star-shaped cross section and then crumpled along the central area using driving rollers with differing angular speeds to enhance resilience and adjust length, is employed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a flat paper strip is crumpled without opening marginal areas, then the production process is simple, but the cushioning effect and resilience are insufficient
Solution Approach 1:
The paper strip is segmented into a middle area (connected) and marginal areas (unconnected), allowing different regions to perform different functions during crumpling. This segmentation enables the marginal areas to splay outward and form a star-shaped cross-section, improving cushioning effectiveness while maintaining structural integrity in the middle area.
Solution Approach 2:
Different regions of the paper strip are given different structural properties: the middle area maintains connectivity for structural support, while the marginal areas remain unconnected to enable splaying and energy absorption during crumpling. This local differentiation optimizes both cushioning performance and structural stability.
2Manufacturing precision
If driving rollers with the same angular speed are used, then the mechanism is simple, but the length control and resilience enhancement are limited
Solution Approach 1:
The driving rollers are configured with different angular speeds, creating a dynamic speed differential that enables controlled crumpling. The first driving roller rotates faster than the second, causing the paper strip to crumple between them. This dynamic speed variation allows precise control over the crumpling process, resulting in consistent length and enhanced resilience.
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 method produces a cushioning product with improved resilience and adjustable length, suitable for packaging, by creating a star-shaped paper strip that maintains structural integrity and provides effective cushioning properties.
Implementation Method 1
crumpling the paper strip along the central area
Implementation Method 2
enhance resilience
Data Source
AI summary
The invention relates to a method for producing a cushioning product (88), comprising the following steps:providing a flat, longitudinal, two- or multilayered paper strip (10), wherein the individual layers (12, 14) of the paper strip (10) are connected to one another in at least some sections in a middle area (18) extending in the longitudinal direction, and wherein the individual layers (12, 14) of the paper strip (10) comprise marginal areas (20, 21, 22, 23) which are not connected to one another,opening adjacent marginal areas (20, 21, 22, 23) to form a paper strip (10) having a star-shaped cross section, andcrumpling the paper strip (10) along the middle area (18).