Secure Laminate Joint Design for Booklet Inserts
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Summary
Problems
Existing security booklet inserts with plastic components face challenges in creating a reliable and secure joint between elastic and plastic layers, as they rely solely on lamination, which lacks durability and integrity for secure attachment.
Innovation solutions
A multilayer laminate sheet design where an internal elastic layer extends beyond other layers to form an elastic attachment part, joined using coupling elements like threads or rivets that are laminated to ensure a secure and seamless integration, with personalized signs for enhanced security features.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If layers are joined together by lamination only, then the manufacturing process is simple, but the joint reliability and security are insufficient
Why choose this principle:
The patent combines multiple joining methods (lamination and stitching with coupling elements) into a hybrid joining system. The elastic layer is both laminated to the plastic layers and stitched through them with coupling elements, creating a composite joining approach that leverages both adhesive bonding and mechanical interlocking for enhanced reliability.
Principle concept:
If layers are joined together by lamination only, then the manufacturing process is simple, but the joint reliability and security are insufficient
Why choose this principle:
The patent uses a composite joining approach combining organic materials (thread/coupling elements) with inorganic materials (lamination adhesive). This composite joining system integrates different material properties to achieve both strength and flexibility in the joint between elastic and plastic layers.
Application Domain
Data Source
AI summary:
A multilayer laminate sheet design where an internal elastic layer extends beyond other layers to form an elastic attachment part, joined using coupling elements like threads or rivets that are laminated to ensure a secure and seamless integration, with personalized signs for enhanced security features.
Abstract
An insert for a booklet, the insert having a form of a multilayer laminate sheet, wherein one internal elastic layer (130) extends beyond the other layers (110, 120, 125, 126, 127) to form an elastic attachment part (132) for attaching the insert to the booklet. The internal elastic layer (130) is joined with at least one other layer of the laminate by at least one coupling element (140, 141, 142, 160) extending through the joined layers, wherein the external surface of the coupling element (140, 141, 142, 160) does not extend above the external surface of the external layers (110, 120).