Thermal Transfer Sheet Peeling Layer Antimicrobial Adhesion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Thermal transfer sheets with antimicrobial properties suffer from poor adhesion between the substrate and transfer layer, leading to potential foil delamination, and existing solutions do not adequately address both antimicrobial efficacy and adhesion.
Innovation Solution
Incorporating antimicrobial particles with specific average particle sizes (1-8 μm) and content ranges (2.8-8 parts by mass) into the peeling layer of thermal transfer sheets and intermediate transfer media, enhancing both antimicrobial properties and adhesion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a transfer layer containing an inorganic antimicrobial agent is transferred onto a printed material, then the antimicrobial properties and durability of the printed material are improved, but the adhesion between the substrate and transfer layer deteriorates, causing foil delamination
Solution Approach 1:
The patent changes the particle size parameter of antimicrobial particles from conventional small sizes to specifically 1-8 μm, and adjusts the content parameter to 2.8-8 parts by mass per 100 parts by mass of resin material. These parameter changes optimize both adhesion strength and antimicrobial properties, resolving the contradiction between durability and foil adherence.
Solution Approach 2:
The patent creates a composite peeling layer by combining resin material with inorganic antimicrobial particles of specific size and content. This composite structure allows the resin to provide adhesion while the antimicrobial particles provide protective properties, achieving both strong foil adherence and effective antimicrobial action simultaneously.
2Reliability
If the antimicrobial particle content in the peeling layer is increased to improve antimicrobial properties, then the antimicrobial efficacy is enhanced, but the adhesion between substrate and transfer layer deteriorates
Solution Approach 1:
The patent establishes an optimal range for antimicrobial particle content (2.8-8 parts by mass per 100 parts by mass of resin material) rather than simply increasing it indefinitely. This parameter optimization ensures sufficient antimicrobial efficacy while maintaining adequate adhesion, resolving the contradiction between antimicrobial strength and foil adherence.
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 thermal transfer sheets and intermediate transfer media with improved antimicrobial properties and adhesion, resulting in durable and effective printed materials resistant to bacterial growth and delamination.
Implementation Method 1
the peeling layer containing a resin material and antimicrobial particles
Implementation Method 2
a thermal transfer sheet and a transfer-receiving article are used. The thermal transfer sheet includes a coloring layer containing a sublimation dye on a surface of a substrate. The method includes heating a back layer of the thermal transfer sheet to sublimate and transfer the sublimation dye
Data Source
AI summary
A thermal transfer sheet according to the present disclosure includes a first substrate and a transfer layer including at least a peeling layer, the peeling layer containing a resin material and antimicrobial particles, the antimicrobial particles having an average particle size in the range of 1 to 8 μm, and the peeling layer having a content of the antimicrobial particles in the range of 2.8 to 8 parts by mass per 100 parts by mass of the resin material.