Multi-Layer Paper Padding Product Density via Edge Turnover
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Solution Overview
Problem
Existing padding products made from single-layered paper strips lack the density to effectively pad heavier objects, and methods for producing multi-layered padding products are not efficient in creating a compact and stable crumpled form.
Innovation Solution
A method and device that involves turning over and crumpling the edge regions of a two-layered or multi-layered paper strip before crumpling the central region, using a turnover module and crumpling module with adjustable drive rollers to achieve a high-density padding product, suitable for heavier objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single-layered paper strip is used to produce padding product, then the manufacturing process is simple, but the density is insufficient to effectively pad heavier objects
Solution Approach 1:
The patent applies composite materials by using multi-layered paper strips (typically 3-7 layers) instead of single-layered strips. The layers are bonded together to form a composite structure that achieves higher density and better padding performance for heavier objects, while maintaining manufacturing simplicity through the use of paper-based composite materials.
2Ease of manufacture
If edge regions are not turned over before crumpling, then the manufacturing process is simple, but the padding product has low density and unstable crumpled form
Solution Approach 1:
The patent applies preliminary action by turning over the edge regions of the paper strip before the crumpling process. This preliminary folding action creates a pre-configured structure that ensures stable and consistent crumpling when the central region is compressed, resulting in a stable spherical or ellipsoidal padding form with predictable density distribution.
3Ease of manufacture
If only the central region is crumpled while edge regions remain flat, then the manufacturing process is simple, but the padding product has low density and is not suitable for heavier objects
Solution Approach 1:
The patent applies preliminary action by turning over the edge regions before crumpling, which prepares the entire paper strip structure for uniform compression. This preliminary folding ensures that when crumpling occurs, the edge regions contribute to density formation rather than remaining as flat, low-density projections.
Solution Approach 2:
The patent applies local quality by creating different structural characteristics in different regions of the paper strip. The edge regions are folded to create a compact, multi-layered structure that, when crumpled, contributes to overall density. This local structural modification ensures uniform density distribution throughout the padding product, making it suitable for heavier objects.
Data Source
AI summary
Method for producing a padding product, comprising the following steps:providing a flat, elongate paper strip, which has a central region extending in the longitudinal direction and two-layered or multi-layered adjacent edge regions, which are not joined to one another,opening up adjacent edge regions, andcrumpling the paper strip along the central region, characterized in thatbefore the crumpling along the central region the edge regions are turned over towards the center region, and a device for producing a padding product, and a padding product.