Sublimation Transfer Coating for Full-Color Cotton Printing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing printing processes for fabric substrates face challenges in transferring high-quality images without bleeding or running, and achieving good matteness and release of ink from the substrate.
Innovation Solution
A method involving the use of a specialty coating on a recording medium, which includes a binder, silicone release agent, humectant, and wetting agent, applied using specific ratios and methods, followed by deposition of ink using a piezoelectric inkjet printer, and subsequent transfer to fabric using a powder adhesive and hot-pressing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional printing processes are used on fabric substrates, then the printing process is simple, but the image quality deteriorates with bleeding and running
Solution Approach 1:
The patent introduces a specialty coating layer on the recording medium as an intermediary between the ink and fabric substrate. This coating contains silicone release agents and binders that prevent ink bleeding while facilitating clean transfer to the fabric, thereby improving image quality without requiring complex printing equipment
Solution Approach 2:
The specialty coating is applied to the recording medium before printing occurs. This preliminary action prepares the surface to control ink flow and prevent bleeding during the printing process, enabling high-quality images using standard printing equipment
2Manufacturing precision
If conventional ink transfer methods are used, then the process is straightforward, but the ink release from substrate is poor
Solution Approach 1:
The specialty coating acts as a mediator that facilitates ink release from the recording medium to the fabric substrate. The silicone release agents in the coating reduce adhesion to the recording medium while the binders ensure proper transfer, achieving excellent ink release without complicating the manufacturing process
Solution Approach 2:
The patent modifies the surface properties of the recording medium through the specialty coating, changing parameters such as surface energy and adhesion characteristics. This enables controlled ink release during the transfer process while maintaining process simplicity
3Manufacturing precision
If standard printing coatings are used, then the coating application is simple, but the image matteness is poor
Solution Approach 1:
The specialty coating is a composite material containing binders, silicone release agents, and other functional components in specific ratios. This composite formulation provides both good matteness and easy application, resolving the contradiction between image quality and process simplicity
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 ensures high-quality image transfer with good matteness and release, allowing for launderable, touch-friendly, and stretchable images on fabric substrates without bleeding or cracking, suitable for various fabric types including cotton and blends.
Implementation Method 1
the selected printer is an ink jet printer using piezoelectric actuation to deposit the inks on the recording medium
Implementation Method 2
subsequent transfer to fabric using a powder adhesive and hot-pressing
Data Source
AI summary
A method for transferring an image to a fabric, including providing a recording medium; coating the recording medium with a specialty coating including a silicone release agent, a silicone emulsion catalyst, and a binder; printing an image on the recording medium including the specialty coating, the image being printed using a sublimation ink; adhering a powder adhesive to the image printed on the recording medium while the image is in a wet state; transferring the recording medium including powder adhesive and image to the fabric; and hot-pressing the powder adhesive and image to the fabric to adhere the powder adhesive and image to the fabric.