Method for manufacturing a thermal transfer printing sheet and printing method
By forming a color image layer and an adhesive layer of the transferred material on the transfer substrate, the problems of color saturation and concealment in heat transfer printing on small-sized, multi-variety fabrics and leather garments are solved, achieving high print reproducibility and sufficient flexible fixing, and improving the maintainability of the equipment and printing speed.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- RICOH CO LTD
- Filing Date
- 2024-09-11
- Publication Date
- 2026-06-05
AI Technical Summary
Existing technologies for heat transfer printing on small-sized, multi-variety fabrics and leather garments suffer from several drawbacks, including limited selection of printed object shapes, low white toner production rates, insufficient white coverage, reduced color saturation and brightness of color images, slow printing speed, and poor equipment maintainability.
A color image layer is formed on a transfer substrate using a color image layer forming apparatus, and an adhesive layer of the transferred material with a thickness of 40 μm or greater and 120 μm or less is formed in a single printing operation by electrophotography. White toners, including polyester resin, polyurethane resin and release agent, are used to improve the adhesion and flexibility of the image.
It achieves high printing reproducibility without reducing color saturation on dark-colored transfer materials, and can fully fix images on materials with large textures and flexibility, with sufficient flexibility and strength. It solves the problems of limited selection of printed object shape, insufficient white concealment and low productivity in traditional methods.
Smart Images

Figure CN122162095A_ABST