Phase Change Material Image Transfer Blanket Temperature Regulation
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Solution Overview
Problem
Image transfer products in printing processes face challenges with temperature variations and feed variations, leading to inconsistent print quality and performance issues due to factors like ambient temperature, substrate variations, and ink properties.
Innovation Solution
Incorporating phase change materials with specific melting points into the layers of image transfer products, such as printing blankets and sleeves, to regulate temperature and maintain consistent ink or toner transfer, combined with thermally conductive agents to enhance heat flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If phase change material is incorporated into the image transfer product, then temperature stability is improved, but device complexity increases
Solution Approach 1:
The patent incorporates a phase change material (PCM) with a melting point of 18-45°C into the image transfer product layers. The PCM absorbs excess heat when melting and releases heat when solidifying, automatically regulating the temperature of the image transfer product during printing operations without requiring external control systems.
Solution Approach 2:
The patent creates a composite structure by integrating the phase change material into one or more layers of the image transfer product, combining the functional properties of the base material with the thermal regulation properties of the PCM to achieve both structural integrity and temperature stability.
2Manufacturing precision
If phase change material is used to regulate temperature, then image transfer consistency is improved, but manufacturing complexity increases
Solution Approach 1:
The patent places the phase change material specifically within certain layers of the image transfer product rather than uniformly throughout, concentrating the thermal regulation function in strategic locations where temperature control is most critical for image transfer consistency.
3Temperature
If phase change material is incorporated into layers, then temperature regulation is improved, but material selection constraints increase
Solution Approach 1:
The patent specifies a melting point range of 18-45°C for the phase change material, allowing selection of different PCMs based on specific printing application requirements while maintaining effective temperature regulation across various printing conditions and substrate types.
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 use of phase change materials stabilizes the temperature of the image transfer products, ensuring consistent image transfer quality and improving print performance by absorbing and releasing energy, thus maintaining optimal operating conditions.
Implementation Method 1
Phase change materials are capable of latent heat storage as heat is absorbed or released when the material changes from solid to liquid and vice versa
Implementation Method 2
Phase change materials are capable of latent heat storage as heat is absorbed or released when the material changes from solid to liquid and vice versa
Implementation Method 3
combined with thermally conductive agents to enhance heat flow
Data Source
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AI summary
An image transfer product is provided which includes a phase change material (30) in one or more layers of the product to regulate the temperature of the product during printing operations. The image transfer product may be in the form of a printing blanket (10), printing sleeve (40), electrophotographic/xerographic transfer blanket, image transfer belt (60), or roller (50) which includes a print surface layer (12) and at least one layer underlying the printing surface layer. The phase change material may be included in any of the layers of the image transfer product, but is not present at the upper surface of the print surface layer. The phase change material may be in the form of a powder, fibers, capsules, or combinations thereof.