Texturized Printable Coating Anchoring Granules
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Solution Overview
Problem
Texturized substrates with granules on printable surfaces face challenges in ink adhesion and print quality due to granules dusting off, leading to reduced print quality and undesirable build-up on printing equipment.
Innovation Solution
A texturized printable paper coating comprising a starch component, calcium carbonate particles, metal oxide porous microparticles, and polymeric microparticles, applied in specific weight percentages and sizes to create a durable, porous surface that retains texture and allows for effective ink adhesion and printing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If granules are used within the printable surface to provide texture, then textured appearance is achieved, but granules dust off during printing causing poor print quality and build-up on printing equipment
Solution Approach 1:
The patent uses a coating composition as an intermediary material that bonds granules to the substrate. This coating acts as a mediator between the granules and the substrate, preventing granule dusting while maintaining texture. The coating contains binders and adhesion promoters that securely attach granules to the printable surface, eliminating the dusting problem that occurs with direct granule application.
Solution Approach 2:
The patent employs a composite coating material consisting of multiple components including binders, adhesion promoters, and granules. This composite structure combines the texturizing function of granules with the bonding function of the coating matrix, creating a stable textured surface that prevents granule loss during printing while maintaining print quality.
2Ease of operation
If coating is made porous to accept ink therethrough, then ink absorption is improved, but granule adhesion becomes difficult to maintain
Solution Approach 1:
The patent utilizes porous coating materials that allow ink to penetrate through the coating while maintaining structural integrity. The porous structure provides capillary channels for ink absorption while the coating matrix maintains sufficient density and bonding strength to prevent granule dusting, resolving the contradiction between ink absorption and granule adhesion.
Solution Approach 2:
The patent optimizes the physical and chemical parameters of the coating, including porosity, particle size distribution, and binder composition. By carefully controlling these parameters, the coating achieves the right balance between being porous enough for ink absorption and having sufficient structural strength to maintain granule adhesion during the printing process.
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 coating provides improved printability without dusting during printing, retains texture post-printing, and ensures high-quality images by securely anchoring particles and allowing ink absorption, addressing the issues of granule dusting and print quality.
Implementation Method 1
a texturized printable coating on the first surface of the base sheet. The texturized printable coating includes a starch component; a plurality of first calcium carbonate particles
Implementation Method 2
a plurality of metal oxide porous microparticles
Implementation Method 3
allows ink absorption
Implementation Method 4
a plurality of polymeric microparticles having an average particle size of that is 0.07 μm to 1 μm
Data Source
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AI summary
A texturized printable paper, along with methods of its formation and use, is provided. The texturized printable paper may include a base sheet having a first surface and a second surface, and a texturized printable coating on the first surface of the base sheet. The texturized printable coating may include a starch component; a plurality of first calcium carbonate particles having an average particle size of about 12 µm to about 50 µm; a plurality of oxide microparticles; and a plurality of polymeric microparticles having an average particle size of that is about 0.1 µm to about 1 µm.