Laminate Recording Body Structure for Tamper-Resistant Embedded Markers
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Solution Overview
Problem
Existing recording members in articles such as product tags, logo plates, or accessories are susceptible to being easily removed, posing challenges for forgery prevention and tamper prevention.
Innovation Solution
A laminate structure with a base material, intermediate layer, and overlay layer, incorporating a recording member with a color development layer, where the layers are bonded by fusion or heat-curable adhesive, and featuring a housing portion that is a through hole or recess, ensuring integration and difficulty in removing the recording member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a recording member is simply placed on an article surface, then it is easy to apply and manufacture, but it can be easily removed posing forgery and tamper risks
Solution Approach 1:
The recording member is nested within a housing portion formed in the intermediate layer of the laminate. This housing structure physically encapsulates the recording member, making it difficult to remove while maintaining integration with the base material and overlay layer, thereby preventing forgery and tampering.
Solution Approach 2:
The base material, intermediate layer, and overlay layer are bonded together through fusion bonding to form an integrated laminate structure. This merging of multiple layers creates a unified construction that securely holds the recording member and prevents easy removal, enhancing forgery prevention.
2Strength
If layers are bonded by fusion, then bonding strength is high preventing removal, but manufacturing process becomes more complex
Solution Approach 1:
The fusion bonding process utilizes thermal energy and pressure parameters to bond the base material, intermediate layer, and overlay layer together. By controlling temperature and pressure parameters during manufacturing, strong bonds are achieved while maintaining process feasibility for industrial production.
3Reliability
If a through hole housing portion is used, then recording member is securely held, but manufacturing precision requirements increase
Solution Approach 1:
The housing portion is formed as a through hole in the intermediate layer, creating a nested structure that physically contains the recording member. This design securely holds the recording member in place while the intermediate layer provides structural support and positioning.
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 structure enhances forgery prevention by making it difficult to detach the recording member from the article, improving mechanical reliability and maintaining the integrity of the colored state change mechanism.
Implementation Method 1
the base material and the intermediate layer are bonded to each other by fusion, and the intermediate layer and the overlay layer are bonded to each other by fusion
Implementation Method 2
the base material and the intermediate layer are bonded to each other by a heat-curable adhesive, and the intermediate layer and the overlay layer are bonded to each other by a heat-curable adhesive
Implementation Method 3
the recording member includes a color development layer containing a coloring compound having an electron donating property, a developer having an electron accepting property
Data Source
AI summary
A recording body that makes it difficult to take out a recording member therefrom. The recording body includes an exterior material covering at least a part of a surface of a laminate. The laminate includes a base material, an intermediate layer having a housing portion, a recording member provided in the housing portion, and an overlay layer. The housing portion is in a part of a plane of the intermediate layer. The housing portion is a through hole penetrating the intermediate layer in a thickness direction thereof or a recess recessed in the thickness direction of the intermediate layer. The recording member includes a color development layer containing a coloring compound having an electron donating property, a developer having an electron accepting property, and a matrix resin. The base material, the intermediate layer, and the overlay layer contain the same type of resin material and are bonded by fusion.