Absorbent Core Card Body for Aesthetic Customization

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing card bodies for card-shaped data carriers lack sufficient absorbability to effectively incorporate mediums such as color materials or odors, which limits their aesthetic and functional customization options.

Innovation Solution

A card body with a composite layer structure comprising a core layer sandwiched between two cover layers, where the core layer is designed to absorb and incorporate mediums, providing properties like color, odor, or haptic effects.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If a traditional plastic card body is used, then the card structure is simple and manufacturing is easy, but the absorbability to incorporate mediums like color materials or odors is insufficient

Engineering Contradiction:

ImproveabsorbabilityVSAvoidcard body structure

Core Design Contradiction:

Quantity of substanceVSDevice complexity

Solution Approach 1:

The card body is divided into multiple functional layers: a base layer providing structural support, a core layer with absorbent material for incorporating mediums, and cover layers for protection. This segmentation allows each layer to specialize in its function, with the core layer's porous structure enabling medium absorption while the base layer maintains structural simplicity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The card body uses composite material construction combining a plastic base layer with a core layer containing absorbent material such as porous polymer, open-cell foam, or cellulose-based materials. This composite structure integrates the structural properties of plastic with the absorbent properties of the core layer material, achieving both structural integrity and medium incorporation capability.

Inventive Principle:

Principle #40Composite materials

2Adaptability or versatility

If color materials or odors are incorporated in the surface region, then the card body can be customized aesthetically, but wear in the surface region or edge region causes the properties to be lost

Engineering Contradiction:

Improveaesthetic customizationVSAvoiddurability of incorporated medium

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The absorbent core layer is nested between the base layer and the cover layers, creating a sandwich structure. This nesting protects the incorporated mediums (color materials, odors, haptic materials) within the core layer from direct exposure to wear and damage, as the cover layers act as protective barriers while still allowing the core layer to absorb and retain the mediums effectively.

Inventive Principle:

Principle #7Nested doll (Nesting)

3Quantity of substance

If the core layer is made highly absorbent to receive mediums, then the medium incorporation capability is enhanced, but the structural integrity and edge strength may be compromised

Engineering Contradiction:

Improvemedium incorporation capabilityVSAvoidedge strength

Core Design Contradiction:

Quantity of substanceVSStrength

Solution Approach 1:

The card body structure applies local quality by using different materials with different properties in different regions: the base layer and cover layers use durable, structurally strong materials to provide edge strength and structural integrity, while the core layer uses highly absorbent porous materials specifically in the region where medium incorporation is needed. This localized material selection optimizes each region for its specific function without compromising overall strength.

Inventive Principle:

Principle #3Local quality

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 card body achieves enhanced absorbability and durability, allowing for permanent incorporation of mediums that provide aesthetic and functional enhancements without compromising the card's surface or edge integrity.

Implementation Method 1

The core layer has at least one core layer section, which is adapted to receive a medium from an environment of the card body in order to incorporate the medium in the at least one core layer section

Methodology Applied

Scientific EffectAbsorption: Absorption (physical)

Data Source

PatentUS20250173540A1Card body with absorbent core and method for producing a card body with absorbent core

Publication Date: 2025.05.29 GIESECKE & DEVRIENT EPAYMENTS GMBH

AI summary

The present disclosure relates to a card body. The card body comprises a layer composite, which has a first cover layer, a second cover layer and a core layer. The core layer is arranged between the first cover layer and the second cover layer. The core layer has at least one core layer section, which is adapted to receive a medium from an environment of the card body in order to incorporate the medium in the at least one core layer section and provide a color effect on the core layer section.