3D Sticker Rigid Thermoformable Layer and Repositionable Adhesive
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Solution Overview
Problem
Existing three-dimensional thermoformed structures for promotional and aesthetic purposes are limited by their flexibility, which requires anchoring methods like grommets and ropes, and lack support for long-term outdoor use and repositionability, especially when featuring electronic components.
Innovation Solution
A three-dimensional sticker with a rigid thermoformable plastic layer, a flexible ink layer, and a repositionable adhesive layer, thermoformed into a shape with an anchor region for attachment and an elevated region for electronic integration, allowing repositioning and maintaining shape without deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flexible material is used for the banner, then it can be rolled up for storage or transport, but it requires grommets and rope or cord for anchoring and cannot provide rigid support for three-dimensional structures
Solution Approach 1:
The banner is segmented into a rigid support structure layer and a flexible display layer. The rigid layer provides structural support for three-dimensional elements, while the flexible layer maintains rollability for storage and transport.
Solution Approach 2:
The banner uses composite construction combining rigid materials (for structural support) with flexible materials (for display and rollability). This allows the banner to simultaneously provide three-dimensional structure support and remain portable.
2Reliability
If grommets and rope or cord are used for anchoring, then the banner can be attached to display sites, but the attachment method is limited and does not allow repositioning
Solution Approach 1:
The anchoring system transitions from static mechanical attachment (grommets and rope) to a dynamic adhesive system that allows the banner to be repositioned, removed, and reattached to different surfaces while maintaining secure attachment.
3Ease of manufacture
If adhesive is applied only on the flat portion of the label, then the label can be applied to containers, but there is no support beneath the raised three-dimensional area causing shape deformation when peeled
Solution Approach 1:
Adhesive is pre-applied to the entire back surface of the label including beneath the raised three-dimensional area, before the label is applied to the container. This preliminary adhesive coverage ensures uniform support and prevents shape deformation during removal and repositioning.
4Strength
If a rigid material is used for the sticker, then it provides structural support and maintains shape, but it cannot wrap around curved surfaces
Solution Approach 1:
The sticker has different mechanical properties in different regions: the rigid layer provides structural support and shape maintenance in flat areas, while the flexible layer allows conforming to curved surfaces. This local differentiation of material properties resolves the contradiction between rigidity and flexibility.
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 solution provides a rigid, repositionable, and weather-resistant three-dimensional sticker that can integrate electronics and maintain its shape during repositioning, addressing the limitations of flexibility and support in existing technologies.
Implementation Method 1
an adhesive layer comprising a repositionable adhesive adhered to the rigid main sheet
Implementation Method 2
a flexible/stretchable ink layer adhered the main sheet
Data Source
AI summary
A three-dimensional sticker is disclosed that includes a body. The body has the following components: a rigid main sheet constructed from a thermoformable plastic layer, and a flexible/stretchable ink layer adhered the main sheet. Additionally, the body may employ an adhesive layer comprising a repositionable adhesive adhered to the rigid main sheet and a thermoformable release liner detachably adhered to the adhesive layer. The body is thermoformed into a three-dimensional shape with an anchor region and an elevated region. The anchor region is substantially planar and defines an anchor plane, and the elevated region is outside of the anchor plane. The adhesive layer and release liner may be present in the anchor region and elevated region. Additionally, the three-dimensional sticker may comprise a multi-part construction wherein the parts can be separated from each other for easier transport and installation.