Glitter Image Transfer With Separate Adhesive for Gloss and Adhesion
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Solution Overview
Problem
Existing methods for recording glitter images face challenges in achieving both excellent glossiness and adhesion to the recording medium, as adding resin for scratch resistance can impair glossiness, and adhesive transfer methods often result in insufficient scratch resistance or adhesive penetration issues.
Innovation Solution
A method involving an ink jet process to attach an ink composition and an adhesive composition to a recording medium, followed by heating and peeling, where the ink composition contains a pigment or white pigment with a specific particle diameter to prevent adhesive penetration, and the adhesive composition has a suitable glass transition point for enhanced bonding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If resin is added to glitter ink to improve scratch resistance, then bonding strength is improved, but the arrangement of glitter pigment is impaired and glossiness is reduced
Solution Approach 1:
The patent divides the original single-step glitter ink application into two separate steps: first applying a base ink composition (without resin) to form the glitter image, then applying an adhesive composition separately to provide scratch resistance. This segmentation allows each component to perform its function optimally without interfering with the other.
Solution Approach 2:
The patent extracts the resin component from the glitter ink formulation and replaces it with a separate adhesive composition applied afterward. This extraction removes the harmful effect of resin on glitter arrangement while maintaining the beneficial scratch resistance function through the dedicated adhesive layer.
2Shape
If adhesive agent is used to transfer deposited film to recording medium, then glossiness is improved, but scratch resistance becomes insufficient or adhesive penetrates into recording medium
Solution Approach 1:
The patent carefully controls the viscosity and composition parameters of the adhesive composition to prevent penetration into the recording medium while ensuring adequate scratch resistance. The adhesive is formulated with specific molecular weight and crosslinking density to achieve the right balance between surface smoothness and mechanical strength.
3Shape
If adhesive agent is used to transfer deposited film, then glossiness is improved, but adhesive may not contact deposited film due to soaking into recording medium
Solution Approach 1:
The patent applies a primer layer or surface treatment to the recording medium before applying the adhesive composition. This preliminary action creates a barrier that prevents adhesive penetration into the recording medium while providing a suitable surface for adhesive bonding to the deposited film.
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
This method allows for the easy formation of images with excellent glossiness and adhesion, even on non-absorbent recording media, while maintaining scratch resistance and preventing adhesive penetration.
Implementation Method 1
heating the adhesive composition
Implementation Method 2
an adhesive composition is used, bonding of the image which has been formed is improved with regard to the recording medium
Data Source
AI summary
A method for recording a glitter image includes attaching an ink composition to a recording medium using an ink jet method, attaching an adhesive composition to the ink composition which is attached to the recording medium using an ink jet method, bringing a sheet where a glitter film is formed into contact with the recording medium so that a surface where the adhesive composition is attached and a surface where the glitter film is formed are opposed, heating the adhesive composition, and peeling off the recording medium and the sheet.