Laminate Composite UV Protection via Density-Graded Layers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current packaging solutions for bulk materials, especially construction materials, face challenges with moisture protection, overpressure venting, and ink stability under outdoor conditions, leading to instability and reduced shelf life due to moisture absorption and ink bleaching.
Innovation Solution
A laminate composite with a base lamination and a transparent imprint lamination, where the imprint lamination includes layers with varying densities and UV absorbers to protect the print image from solar radiation, ensuring long-term preservation and maintaining the appearance of the packaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a transparent plastic film is used for lamination to protect printed materials, then the appearance and haptics can be tailored to customer wishes, but the print image is exposed to UV radiation and bleaches over time
Solution Approach 1:
The patent implements a multi-layer laminate structure where the print-bearing layer is nested between protective layers. Specifically, the print is applied to a carrier film, which is then laminated with additional transparent plastic film layers. This nested configuration allows the outer layers to shield the print from UV radiation while maintaining the desired appearance and tactile properties of the packaging surface.
Solution Approach 2:
The patent uses composite laminate structures combining multiple plastic film layers with different properties. The carrier film provides printability, while the additional lamination layers provide UV protection and enhanced mechanical properties. This composite approach allows simultaneous achievement of appearance customization, print protection, and durability without relying on a single material.
2Object-generated harmful factors
If paper containers are used for construction materials, then overpressure can escape during filling, but moisture protection is insufficient
Solution Approach 1:
The patent applies different properties to different parts of the packaging system. The packaging consists of a paper container providing overpressure venting capability, combined with a plastic film lamination applied to the outer surface. This lamination provides the moisture barrier function locally where needed, while the paper container maintains its overpressure venting function. The combination allows both requirements to be satisfied simultaneously in different locations of the packaging system.
3Object-affected harmful factors
If plastic packagings are used for bulk materials, then moisture protection is improved, but overpressure cannot escape during filling
Solution Approach 1:
The patent segments the packaging system into functional components: a paper container that provides overpressure venting through its inherent permeability, and a plastic film lamination that provides moisture protection. By dividing the packaging into these segments with distinct functions, the system achieves both overpressure release and moisture barrier capabilities that neither material could provide alone.
4Weight of moving object
If the imprint lamination is made thinner to reduce weight, then the packaging becomes lighter, but UV protection effectiveness may be reduced
Solution Approach 1:
The patent uses composite laminate structures where multiple thin layers work together to provide both weight reduction and adequate UV protection. The combination of the carrier film with printed imagery and one or more additional transparent lamination layers creates a composite system where the cumulative effect provides sufficient UV barrier properties while keeping the total thickness and weight minimized. The synergistic interaction between layers achieves protection levels that would require much thicker single layers.
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 laminate composite provides enhanced UV protection, maintaining the print image's clarity and stability, while being lightweight, impermeable, and airtight, addressing issues of moisture protection and ink stability, and ensuring the packaging remains effective and appealing over time.
Implementation Method 1
the imprint lamination includes layers with varying densities and UV absorbers to protect the print image from solar radiation
Implementation Method 2
The two laminations are joined by means of a laminating agent
Data Source
AI summary
A laminate composite composed of at least two laminations (1, 7) and an imprint located between them (3). The lamination (7) includes at least two layers (4, 5, 6). One layer (5) includes a UV absorber to protect the imprint. This layer (5) is characterized by having a lower density than the other layers (4, 6). The other layers (4, 6) preferably have a density that is higher relative to the one layer (5) by a factor of 1.005, in particular by a factor of 1.01, preferably by a factor of 1.015.