Foam-Layer Recording Medium for Fast, Water-Resistant Stereoscopic Images
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Solution Overview
Problem
Existing methods for forming stereoscopic images are inadequate in terms of speed, temperature requirements, and water resistance, particularly in applications where high-speed printing at lower temperatures and exposure to water are necessary.
Innovation Solution
A recording medium comprising a substrate with a foam layer containing microcapsule-type foam particles, a water-insoluble thermoplastic resin, and polyvinyl alcohol, where the polyvinyl alcohol has a specific saponification degree and polymerization degree, and a controlled mass ratio with the resin, dispersed by a surfactant, enhances foamability and water resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high-speed printing is implemented, then productivity is improved, but water resistance deteriorates
Solution Approach 1:
The patent changes the chemical parameters of the foam layer by using polyvinyl alcohol with specific saponification degree (70-92%) and polymerization degree (1000-3000), and controlling the mass ratio of polyvinyl alcohol to thermoplastic resin (0.05-0.50). These parameter changes enable the foam layer to achieve both high-speed printing compatibility and water resistance without compromising either aspect.
Solution Approach 2:
The patent creates a composite foam layer combining polyvinyl alcohol, water-insoluble thermoplastic resin, and surfactant. This composite material structure allows the foam layer to simultaneously provide water resistance through the polyvinyl alcohol network and maintain printability at high speeds through the thermoplastic resin matrix, resolving the contradiction between productivity and reliability.
2Use of energy by moving object
If low temperature conditions are used, then energy consumption is reduced, but foam formation capability deteriorates
Solution Approach 1:
The patent modifies the chemical composition parameters of the foam layer by incorporating polyvinyl alcohol with specific saponification degree (70-92%) and polymerization degree (1000-3000), which changes the thermal and foaming characteristics. This enables effective foam formation at lower temperatures without sacrificing foam formation capability, thus reducing energy consumption while maintaining ease of manufacture.
Solution Approach 2:
The patent introduces surfactant as an intermediary substance in the foam layer that facilitates foam formation at lower temperatures. The surfactant acts as a mediator between the thermoplastic resin and polyvinyl alcohol, enabling stable foam structure formation without requiring high temperature conditions, thereby reducing energy consumption while maintaining manufacturing ease.
3Manufacturing precision
If foam layer permeation is enhanced, then stereoscopic image quality is improved, but water resistance deteriorates
Solution Approach 1:
The patent optimizes the parameters of polyvinyl alcohol (saponification degree 70-92%, polymerization degree 1000-3000) and the mass ratio of polyvinyl alcohol to thermoplastic resin (0.05-0.50). These parameter changes create a foam layer structure that achieves appropriate permeation for stereoscopic image formation while maintaining water resistance through the optimized polyvinyl alcohol network, resolving the contradiction between manufacturing precision and reliability.
Solution Approach 2:
The patent creates a composite foam layer with polyvinyl alcohol, water-insoluble thermoplastic resin, and surfactant. This composite structure provides a balanced permeation pathway for foam penetration while the polyvinyl alcohol network maintains water resistance. The synergistic combination allows the foam layer to be permeable enough for image formation yet resistant to water, resolving the contradiction between precision and reliability.
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
Enables high-speed stereoscopic image formation at lower temperatures with improved water resistance, ensuring clear unevenness expression and enhanced durability.
Implementation Method 1
a foam layer provided on the substrate and containing a microcapsule-type foam particle that foams by heat
Implementation Method 2
a polyvinyl alcohol which has a saponification degree of 70% or more and 92% or less and has a polymerization degree of 1,000 or less
Implementation Method 3
the thermoplastic resin is dispersed in the foam layer by a surfactant
Data Source
AI summary
A recording medium for stereoscopic image formation includes a substrate and a foam layer provided on the substrate and containing a microcapsule-type foam particle that foams by heat, a water-insoluble thermoplastic resin, and a polyvinyl alcohol. The thermoplastic resin is dispersed in the foam layer by a surfactant. The polyvinyl alcohol has a saponification degree of 70% or more and 92% or less and a polymerization degree of 1,000 or less. The mass ratio of the content (mass %) of the polyvinyl alcohol to the content (mass %) of the thermoplastic resin in the foam layer is 0.10 or more and 0.40 or less.