What are the characteristics of the photosensitive glue thickness on the screen printing plate for thermal transfer forward and reverse?

What are the characteristics of the photosensitive glue thickness on the screen printing plate for thermal transfer forward and reverse?
There is no obvious difference in the thickness characteristics of the photosensitive glue on the screen printing screens of thermal transfer forward and reverse, but in actual application, it will be adjusted according to the specific situation. The following are some common characteristics:
Related to the fineness of the pattern: If the pattern to be printed is relatively fine, whether it is a forward or reverse process, the thickness of the photosensitive glue needs to be controlled, which is generally thinner, usually around 0.05-0.15mm. This is because a thinner photosensitive glue layer can better present the details of the pattern, avoiding problems such as blurred edges and thicker lines caused by too thick glue layers, which affect the accuracy of the pattern after transfer. For example, when printing some thermal transfer patterns with small text or delicate lines, a thin photosensitive glue layer is needed to ensure the clarity of the pattern.
Related to the characteristics of the ink: If the ink used has good fluidity and low viscosity, in order to ensure sufficient ink adsorption and transfer effect, the thickness of the photosensitive glue can be appropriately thinner, generally 0.1-0.2mm. For inks with higher viscosity, a slightly thicker photosensitive adhesive layer may be required, such as 0.15 - 0.25mm, to better carry and transfer the ink. For example, when using silicone ink for thermal transfer, a slightly thicker photosensitive adhesive layer is usually selected due to the higher viscosity of silicone ink.
Related to the substrate: When the surface of the substrate is relatively smooth, such as metal, plastic and other materials, the thickness of the photosensitive adhesive can be relatively thin, about 0.1 - 0.2mm, so that the transferred pattern can better fit the surface of the substrate, improve adhesion and clarity. If the surface of the substrate is relatively rough, such as cloth, leather, etc., in order to make the pattern transfer to the substrate completely and evenly, the thickness of the photosensitive adhesive may need to be appropriately increased to 0.15 - 0.3mm to compensate for the uneven surface of the substrate.
In addition, the number of screens will also affect the choice of photosensitive adhesive thickness. High mesh screen is suitable for thinner photosensitive adhesive layer to ensure mesh transparency; low mesh screen can be matched with slightly thicker photosensitive adhesive to prevent ink leakage. At the same time, different thermal transfer process requirements, printing equipment and operator experience will also affect the choice of photosensitive adhesive thickness.