Composite Packaging Structure with Mineral Layer
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Solution Overview
Problem
Existing packaging materials struggle to balance durability, cost-effectiveness, attractiveness, and environmental friendliness, particularly in retail and shipping applications, often lacking in tensile strength, machinability, and sustainable material usage.
Innovation Solution
A composite structure combining a fiber-containing layer with a substantially continuously bonded mineral-containing layer, enhancing pliability, tensile strength, and machinability, while offering a premium printing surface and improved environmental attributes such as biodegradability and recyclability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If mineral-containing materials are used to reduce cost and improve environmental friendliness, then manufacturing cost decreases and environmental impact is reduced, but tensile strength and machinability deteriorate
Solution Approach 1:
The patent applies composite materials by combining mineral-containing materials (such as ground calcium carbonate, talc, or diatomaceous earth) with thermoplastic polymers in a layered structure. The mineral layer provides cost reduction and environmental benefits, while the thermoplastic layer maintains tensile strength and machinability. This composite approach allows the packaging to achieve both economic and mechanical performance requirements simultaneously.
2Reliability
If higher gauge materials are used to improve theft resistance, then security improves, but manufacturing cost increases
Solution Approach 1:
The patent uses composite materials with mineral-containing layers combined with thermoplastic polymers to achieve enhanced strength and theft resistance without proportionally increasing cost. The mineral reinforcement provides structural integrity and durability comparable to higher gauge materials, while the overall structure remains cost-effective through the use of abundant mineral resources and efficient processing methods.
3Ease of manufacture
If paperboard materials are used to improve machinability, then ease of machining improves, but resistance to heat, fire, and moisture deteriorates
Solution Approach 1:
The patent combines mineral-containing materials with thermoplastic polymers to create a composite structure that maintains the machinability of paperboard-like materials while adding fire resistance and moisture resistance properties. The thermoplastic component provides thermal stability and barrier properties, whereas the mineral content enhances structural integrity and resistance to degradation from heat and moisture exposure.
Data Source
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Figure 5~6A
Figure 6B~6D
AI summary
The present invention is directed to an unexpectedly unique environmentally friendly composite material structure (22) and storage article fabricated therefrom. The composite structure (22) includes a fiber-containing layer (24), such as a fiberboard layer or other layer having fibers from natural and/or synthetic sources, and a mineral-containing layer (26) covering the fiber-containing layer (24). The mineral-containing layer (26) is substantially continuously bonded to the fiber-containing layer (24) along the surface (25) of the fiber-containing layer (24). The fiber-containing layer (24) and mineral-containing layer (26) can be shaped, sized and manufactured such that the composite structure (22) formed therefrom is capable of being machined to form the storage article. The composite structure (22) has advantages in that it has a high degree of pliability and flexibility that is increased over the pliability of the fiber-containing layer (24) alone, which renders it highly attractive to consumers.