Heat Transfer System Ink Ribbon Winding Pattern Disturbance
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Solution Overview
Problem
Conventional heat transfer systems using thermal-sublimation-type ink ribbons face difficulties in preventing identification of printed personal information from ink omission parts, as the base layer lacks a dye-receiving function, leading to insufficient ink transfer and potential color mixing issues.
Innovation Solution
A heat transfer system that includes a base layer with an ink layer and a back surface layer, where the first heating element transfers ink to a transfer-receiving body in a first pattern, and the second heating element transfers ink to the back surface layer in a second pattern, using a controller to manage the heating elements and potentially incorporating a back surface layer with phosphate ester or isocyanate-series curing agents to enhance ink transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ink is transferred to the base layer inside the ink layer in the second pattern using a thermal-sublimation-type ink ribbon, then the first pattern can be disturbed, but sufficient ink cannot be transferred because the base layer lacks dye-receiving function
Solution Approach 1:
The invention divides the base layer into multiple layers: a first base layer (original base layer) and a second base layer (newly added layer with dye-receiving function). This segmentation allows the second base layer to specifically receive dye for the second pattern without interfering with the first pattern, while the first base layer maintains its original function. The two-base-layer structure resolves the contradiction by providing dedicated dye-receiving capability where needed while preserving the original base layer's properties.
Solution Approach 2:
The invention applies local quality by adding dye-receiving functionality specifically to the second base layer that comes into contact with the ink ribbon, while the first base layer retains its original characteristics. This localized enhancement of dye-receiving ability in only the necessary region (the layer contacting the ink ribbon) allows sufficient ink transfer for pattern disturbance without requiring the entire base layer structure to be modified, thus resolving the contradiction between ink transfer capability and pattern disturbance effectiveness.
2Quantity of substance
If the dye-receiving function of the ribbon back surface layer is enhanced, then ink transfer to the base layer is improved, but dye is transferred again to a dye layer of a different screen color, causing mixing of colors
Solution Approach 1:
The invention segments the base layer into two distinct layers with different functions: the first base layer maintains heat resistance and structural support, while the second base layer provides dye-receiving functionality. This segmentation prevents color mixing because the second base layer is positioned between the ink ribbon and the first base layer, capturing dye transfer before it can reach the first base layer and cause unwanted color mixing with existing dye layers.
Solution Approach 2:
The second base layer acts as an intermediary layer between the ink ribbon and the first base layer. It receives dye from the ink ribbon through heat transfer while preventing direct contact between the dye and the first base layer, thereby serving as a mediator that enables ink transfer without causing color mixing with other dye layers on the first base layer.
3Temperature
If a heat-resistant back surface layer is provided on the base layer, then the ink ribbon can be heated with a thermal head, but the dye-receiving function cannot be provided to this back surface layer
Solution Approach 1:
The invention segments the base layer structure into two functional layers: the first base layer provides heat resistance for thermal head operation, while the second base layer (added between the ink ribbon and first base layer) provides dye-receiving capability. This segmentation resolves the contradiction by assigning different functional properties to different layers, allowing both heat resistance and dye-receiving function to coexist in the overall base layer structure.
Solution Approach 2:
The invention resolves the contradiction by adding a new dimension to the base layer structure - a second base layer positioned between the ink ribbon and the first base layer. This dimensional addition (creating a multi-layer structure) allows the system to simultaneously achieve heat resistance (from the first base layer) and dye-receiving capability (from the second base layer), which cannot be achieved in a single-layer structure.
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
Prevents identification of printed personal information by creating an ink omission part in the second pattern that disrupts the first pattern, ensuring secure handling of thermal-sublimation-type ink ribbons by transferring ink as a whole to the back surface layer, thereby improving printing quality and security.
Implementation Method 1
a first heating element heating the ink ribbon from the back surface layer side on a downstream side of the sending part so as to transfer ink in the ink layer to the transfer-receiving body in a first pattern
Implementation Method 2
a second heating element near the winding part, configured to heat the ink ribbon after the ink is transferred from the back surface layer side to transfer ink in the ink layer to the back surface layer inside the ink layer in a second pattern that is different from the first pattern
Implementation Method 3
an ink layer being on one surface of the base layer and containing a thermal migratory dye
Data Source
AI summary
A heat transfer system is provided with a first heating element that transfers ink in an ink layer to a transfer-receiving body in a first pattern, a winding part that winds an ink ribbon having ink transferred therein on the downstream side of the first heating element in such a manner that a back surface layer is positioned outside the ink layer, a second heating element that transfers ink in the ink layer to the back surface layer inside the ink layer in a second pattern near the winding part, and a controller that controls the heating elements, and the controller controls the first heating element to transfer ink corresponding to the first pattern by transferring a portion of the ink layer, and controls the second heating element to transfer ink corresponding to the second pattern by transferring the ink layer as a whole.