Sublimation Dyeing Method Using Carrier for Hard-to-Dye Resin Bodies
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Solution Overview
Problem
Existing methods for dyeing resin bodies, such as the dip dyeing and vapor deposition transfer methods, face challenges with uneven coloration and require multiple time-consuming steps, especially when dyeing specific resin materials that are difficult to color.
Innovation Solution
A method involving a dyeing base body with a sublimable dye and a solid sublimable carrier, where the dyeing base body is printed using an inkjet printer and then heated to sublimate and deposit the dye and carrier onto the resin body, ensuring even fixation and preventing local concentration of the carrier.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the vapor deposition transfer dyeing method is used to dye resin bodies, then the operation environment is improved and dyeing is facilitated, but the resin body may turn out with undesired color or irregular color
Solution Approach 1:
The patent introduces a carrier substance as an intermediary between the sublimable dye and the resin body. The carrier facilitates the transfer of dye by forming a complex with the dye during sublimation, ensuring uniform distribution and preventing direct contact issues that cause irregular coloration. This mediator approach resolves the contradiction by maintaining ease of vapor deposition while achieving uniform color results.
Solution Approach 2:
The patent modifies the physical and chemical parameters of the dyeing system by using sublimable dyes with specific molecular structures and controlling temperature gradients during the dyeing process. By adjusting these parameters, the dye sublimates uniformly and deposits evenly on the resin body, preventing irregular coloration while maintaining the simplicity of the vapor deposition method.
2Adaptability or versatility
If the dip dyeing method using carrier is used to dye resin bodies, then dyeing of hard-to-dye resin bodies is achieved, but the process requires many steps including deposition of carrier and dyeing, causing much time and effort
Solution Approach 1:
The patent combines the carrier deposition step and the dyeing step into a single integrated vapor deposition process. The sublimable dye and carrier are applied simultaneously to the resin body through heating, eliminating the need for separate carrier deposition and subsequent dyeing steps. This merging approach maintains the versatility of carrier-based dyeing for hard-to-dye materials while significantly reducing process time and complexity.
Solution Approach 2:
The patent implements a continuous vapor deposition process where the sublimable dye and carrier are transferred from the heating source to the resin body in a continuous manner. This continuous action eliminates the intermittent steps required in traditional dip dyeing methods, maintaining the effectiveness of carrier-mediated dyeing while reducing overall process time through uninterrupted dye transfer.
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 effortless and preferable dyeing of resin bodies with hard-to-dye materials, achieving uniform coloration and reducing the complexity and time required for the dyeing process.
Implementation Method 1
heating the dyeing base body; sublimating and depositing the sublimable dye and the sublimable carrier
Implementation Method 2
heating the resin body which has been deposited with the sublimable dye and the sublimable carrier
Data Source
AI summary
Dyeing method includes a first step of obtaining a dyeing base body by adhering a base body with a sublimable dye and a sublimable dye carrier, a second step of placing the dyeing base body obtained in the first step to face a resin body and heating the dyeing base body so that the sublimable dye and the sublimable dye carrier which have been adhered on the dyeing base body are sublimated and deposited on the resin body, and a third step of heating the resin body having been deposited with the sublimable dye and the sublimable dye carrier to be fixed with the sublimable dye and the sublimable dye carrier.