Heating module and system for dye sublimation

Abstract

The invention relates to a heating module for dye sublimation printing of an object, comprising a first heating plate, an infrared heating source and a metal mask, wherein the infrared heating source is arranged below the heating plate and emits a radiant ray; the metal mask can prevent the radiant ray emitted by the infrared heating source from directly projecting onto the object; the first heating plate preheats a transfer printing sheet to soften the transfer printing sheet and casting on the surface of the object; the infrared heating source can continue to heat the transfer printing sheet, so as to sublimate dyes to transfer on the surface of the object. According to the invention, the radiant ray can be prevented from directly projecting on the object, simultaneously the object can be uniformly heated, the time of dye transfer is shortened, and the transfer efficiency is raised.

Description

technical field [0001] The invention relates to a heating module and its system, in particular to a heating module and its system for dye sublimation printing. Background technique [0002] Thermal transfer printing involves the reverse patterning of one or more thermal transfer dyes onto a transfer sheet. The pattern is transferred to the surface of the object by thermal transfer (making the pattern contact the surface of the object and heating it). [0003] Traditional infrared heating sources will encounter many problems in thermal transfer technology. Generally speaking, the transfer sheet is pre-heated to be easily attached to the outer contour of the object. In order to heat the transfer sheet evenly, the transfer sheet must be arranged equidistantly from the infrared heating source. Because it is very difficult to effectively equidistantly place the transfer sheet from the infrared heating source, the transfer sheet will sometimes be too soft to adhere properly to o...

AI Technical Summary

Problems solved by technology

Because it is very difficult to effectively equidistantly place the transfer sheet from the infrared heating source, the transfer sheet will sometimes be too soft to adhere properly to objects with three-dimensional contours, and sometimes too rigid to properly coat the surface of 3D objects

In addition, if the radiation intensity emitted by the infrared heating source is too strong, the transfer sheet may be deformed due to the strong radiation.

[0004] Furthermore, because the general infrared heating source can quickly heat up to its preset temperature, the strong radiation emitted by the infrared heating source may cause damage to some fragile objects

However, if the predetermined temperature setting is lowered, the thermal transfer process will not have an economical production scale due to the low temperature

[0005] In addition, it is difficult for an infrared heating source to radiate heat to an object in a three-dimensional space, such as an upwardly protruding part, so that the temperature of the side surface or lower surface of the object may be higher than that of the top surface. lower

This phenomenon will cause the three-dimensional object and the transfer sheet to be heated unevenly. Due to the temperature difference, the quality of the dye transfer will become worse when the temperature of the object is lower, and the overall printing quality will be deteriorated.

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