Roll-Form Aramid Composite Lamination for Ballistic Protection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional methods for producing ballistic and stab-proof materials are inefficient, requiring complex processes and specialized infrastructure for sheet-based materials, leading to suboptimal waste management and limited flexibility in manufacturing.
Innovation Solution
A protective material is developed in roll form through direct continuous lamination of aramid fabric with thermoplastic films using a high-temperature, high-pressure process, enabling the production of flexible MTP systems with improved ballistic and stab-proof properties, compatible with existing fabric-based machinery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional sheet-based materials are used for ballistic protection, then stab-proof properties are achieved, but manufacturing complexity and infrastructure requirements increase
Solution Approach 1:
The patent changes the physical form parameter from discrete sheets to continuous roll material, while maintaining the same lamination structure and material composition (aramid fabric with thermoplastic matrix). This parameter change enables compatibility with standard fabric processing machinery, eliminating the need for specialized sheet-forming infrastructure while preserving stab-proof properties through maintained material composition and lamination quality.
Solution Approach 2:
The roll-form material serves multiple functions: it provides ballistic protection, stab-proof properties, and compatibility with existing fabric-based manufacturing machinery. By making the material universally processable on standard equipment, it eliminates the need for separate specialized infrastructure, thereby reducing manufacturing complexity while maintaining protective performance.
2Reliability
If sheet-based materials are used, then ballistic protection is provided, but waste management becomes suboptimal
Solution Approach 1:
The patent implements continuous roll-form material instead of discrete sheets, enabling continuous processing during vest manufacturing. This continuity allows for optimized cutting patterns and reduced off-cuts, as the material can be precisely positioned and cut to shape without the waste associated with handling and joining separate sheets. The continuous form maintains ballistic protection while minimizing material loss during fabrication.
3Reliability
If sheet-based MTP materials are used, then protection performance is achieved, but manufacturing flexibility is limited
Solution Approach 1:
The patent changes the material form from rigid sheets to flexible rolls, fundamentally altering the handling and processing parameters. The roll form can be easily unrolled, positioned, and cut to match various vest shapes and sizes, providing manufacturing flexibility. This parameter change maintains protection performance through consistent material composition while enabling adaptation to different manufacturing requirements and product designs.
4Stability of the object's composition
If conventional lamination processes are used, then material integrity is achieved, but production efficiency decreases
Solution Approach 1:
The patent employs continuous lamination of aramid fabric with thermoplastic matrix in roll form, allowing uninterrupted processing. The continuous process maintains material integrity through consistent heating and pressing along the entire length, while significantly improving production efficiency by eliminating the stop-start nature of sheet-based processing. The continuous roll can be fed through lamination equipment without frequent handling and positioning changes, thereby increasing throughput while preserving composition stability.
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 material in roll form offers enhanced ballistic resistance, optimized waste management, and improved flexibility, allowing manufacturers without sheet-forming infrastructure to produce high-performance bullet-proof vests with reduced waste and equivalent protection to conventional sheet materials.
Implementation Method 1
lamination of a thermoplastic film or coating of a thermosetting resin, also more generically called matrix, on an aramid fabric in order to make it integral with said fabric
Implementation Method 2
direct continuous lamination of an aramid fabric (8) with one or more thermoplastic films (9)
Data Source
AI summary
A protective material in roll form comprising a laminate fabric with a matrix formed of one or more thermoplastic films; the fabric is advantageously an aramid fabric. The production method of the protective material comprises the direct lamination of a fabric with one or more thermoplastic films, by means of a continuous production line that operates at a temperature between 100 and 250° C. and a pressure from 5 to 60 bar, applied for a time of at least 30 seconds.