Domed Paper Forming with Pre-Applied Adhesive and Press Registration
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Solution Overview
Problem
Existing methods for forming domed paper require the simultaneous application of adhesive or solvent, necessitating expensive and complex equipment, and are challenging to implement in high-volume distribution facilities due to registration issues and adhesive sensitivity to temperature and humidity, making them impractical for e-commerce and shipping applications.
Innovation Solution
A two-step method involving die cutting and adhesive application followed by encapsulation and transportation to a separate location for pressing, using adhesive with high viscosity and low water content, allowing for registration and formation of domes without solvent or rollers, suitable for electrical operation and recyclability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If adhesive or solvent is applied simultaneously with dome formation, then domed paper can be formed, but expensive and complex equipment such as misters, rollers, or spray valves is required
Solution Approach 1:
The patent divides the dome formation process into two separate steps: first applying adhesive to the paper at a manufacturing location, then forming domes at a different location and time using a simple pressing die without requiring adhesive application equipment. This segmentation eliminates the need for complex misters, rollers, or spray valves.
Solution Approach 2:
The adhesive is applied in advance to the paper sheets and allowed to cure partially or fully before dome formation. This preliminary adhesive application allows the paper to be stored and transported, then domed later using simple pressure without requiring simultaneous adhesive application equipment.
2Productivity
If adhesive application and dome formation occur simultaneously, then domes can be formed, but the process requires very controlled conditions accounting for adhesive viscosity changes with temperature and humidity
Solution Approach 1:
By separating adhesive application from dome formation into different steps and locations, the patent eliminates the need to control adhesive viscosity during the dome formation process. The adhesive is applied under controlled conditions at the manufacturing site, then the paper is transported and domed later without requiring precise environmental control at the dome formation location.
3Adaptability or versatility
If domed paper is formed at distribution facilities, then packaging can be done on-demand, but registration of the pressing die and paper is critical and difficult to achieve
Solution Approach 1:
The patent incorporates registration marks directly on the paper sheets during the initial manufacturing process. These self-contained registration marks allow the pressing die to be registered accurately with the paper at the distribution facility without requiring complex alignment systems or skilled operators.
4Ease of manufacture
If water or adhesive is used to form domes, then dome formation is possible, but additional equipment and materials are required that increase operational complexity and cost
Solution Approach 1:
The patent extracts the adhesive application step from the dome formation process, allowing dome formation to be accomplished with a simple pressing die without requiring water, adhesive, or associated application equipment. The adhesive is applied separately in advance, enabling the dome formation step to use only mechanical pressure.
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
Enables consistent and strong domed paper production suitable for shipping, compostable, and recyclable, using simple, cost-effective equipment that can be operated at distribution facilities with minimal expertise, reducing equipment complexity and operational costs.
Implementation Method 1
applying an adhesive between the one or more sheets, joining the one or more sheets together
Implementation Method 2
pressing the adhesive under pressure to shape the substrate into a desired shape may include the domes or protruded structures
Data Source
AI summary
A method and system for forming domes or protruded structures in a flat material such as paper is disclosed. The method includes cutting one or more sheets; applying an adhesive between the one or more sheets, joining the one or more sheets together in a registered manner to form a substrate, and pressing the adhesive under pressure to shape the substrate into a desired shape may include the domes or protruded structures.