Ink-Receiving Layer Composition for Decorative Members
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Solution Overview
Problem
Conventional decorative members face issues with ink adhesion to base layers, leading to poor print quality and emission of harmful materials like formaldehyde, which can harm human health.
Innovation Solution
A decorative member design incorporating an ink-receiving layer composed of an acrylic emulsion, a metal salt, and organic or inorganic particles, applied between the base layer and printing layer to enhance adhesion and durability while minimizing harmful emissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a polyolefin resin is stacked on both sides of the paper base layer, then the base layer becomes more durable and water-resistant, but the ink adhesion deteriorates and the printing layer becomes blurry or erodes
Solution Approach 1:
An ink-receiving layer is introduced as an intermediary between the polyolefin resin-coated base layer and the printing layer. This intermediate layer has specific surface properties that enable it to receive and hold the printing ink effectively, while being applied on top of the water-resistant base layer, thus preserving both water resistance and printing accuracy.
2Ease of manufacture
If conventional materials are used in the decorative member, then the manufacturing process is simple, but harmful materials like formaldehyde are emitted
Solution Approach 1:
The chemical composition parameters of the ink-receiving layer are specifically adjusted by selecting materials that do not contain or emit formaldehyde. The layer uses alternative compounds with different chemical properties that achieve the same functional purpose (ink reception and adhesion) without the harmful emissions, thus changing the material parameters to eliminate toxicity while maintaining manufacturability.
3Device complexity
If the ink is applied directly on the base layer with polyolefin resin coating, then the manufacturing process is simplified, but the printing layer spreads or erodes due to poor adhesion
Solution Approach 1:
The ink-receiving layer serves as a mediator between the polyolefin resin-coated base layer and the printing layer. It provides a suitable surface for ink adhesion and prevents the printing layer from spreading or eroding, thereby improving printing durability without significantly complicating the overall structure.
4Manufacturing precision
If an ink-receiving layer is added between the base layer and printing layer, then the printing accuracy and adhesion are improved, but the manufacturing process becomes more complex
Solution Approach 1:
The decorative member structure is segmented into distinct functional layers: the base layer with polyolefin resin coating for water resistance, the ink-receiving layer for ink adhesion and reception, and the printing layer for design expression. This segmentation allows each layer to be optimized for its specific function, improving printing accuracy while keeping the manufacturing process manageable through clear functional division.
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 significantly improves printability and durability of decorative members while eliminating harmful emissions, ensuring better product quality and safety.
Implementation Method 1
an ink-receiving layer disposed between the base layer and the printing layer and formed of a composition including an acrylic emulsion, a metal salt, and an organic particle or inorganic particle
Data Source
AI summary
The present invention relates to: an ink-receiving layer composition for a decorative member, the composition comprising an acrylic emulsion, a metal salt, and organic particles or inorganic particles; a decorative member comprising a base layer, a printing layer formed on the base layer, and an ink-receiving layer disposed between the base layer and the printing layer and formed of a composition comprising an acrylic emulsion, a metal salt, and inorganic particles; and a method for manufacturing a decorative member, the method comprising a step for preparing a base layer in a flat state, a step for coating a composition comprising an acrylic emulsion, a metal salt, and organic particles or inorganic particles on the base layer, a step for drying or UV curing the coated composition to form an ink-receiving layer, and a step for forming a printing layer on the ink-receiving layer.