Some Factors of Influencing Dye Sublimation Printing Quality

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Some Factors of Influencing Dye Sublimation Printing Quality 


heat transfer printing

(a) Sublimation ink

Sublimation heat transfer ink is that the key material for sublimation transfer technology principally composed of disperse dyes, binders, solvents and a little quantity of additives.

The dye ought to have smart sublimation fungibility and porosity. And to realize an explicit fastness index, relative molecular mass is 230 ~ 380, sublimation temperature is a hundred and eighty ° C ~ 240 ° C ordinarily used transfer printing dyes square measure anthraquinone dyes, group dyes and ion dyes.

The binder includes a little affinity with the dye, is simple to unleash the dye gas, and has appropriate printing suitableness, preservability, and warmth transferability. The ordinarily used binder is low body alkyl polyose, alkyl diameter alkyl polyose. (EHEC), long oil changed alkyd, and also the like. ordinarily used solvents square measure turpentine, terpineol, high boiling alkanol, aralkyl organic compound, cellosolve, and also the like.
digital transfer printing

(b) Temperature and time of heat press

The sublimation transfer method needs that the temperature be controlled among the vary of a hundred and eighty ° C to 230 ° C for concerning ten to thirty s, whereas taking note to the affordable mixing of temperature and time.

(c) Pressure

Pressure is additionally one in every of the vital parameters of the sublimation transfer method. Taking the material sublimation transfer printing as associate degree example, if the pressure is simply too little, the gap between the material and also the paper is giant, the yarn is spherical, and also the ink gas molecules touch the air in giant quantities to flee, leading to poor printing result and simple ink. Exudation, the lines become thicker, and also the pattern and pattern square measure blurred, and also the visual result is deteriorated;If the pressure is suitable, the gap between the flat cloth and also the paper is appropriate, the transfer color result is sweet, the pattern is obvious, and also the lines square measure sleek and fine:If the pressure is simply too giant, issues like defamation, fuzzing, and morphological amendment of the serious cloth square measure susceptible to occur, leading to defects like rough hand and surface coloration. Therefore, dominant the transfer pressure is essential to the written pattern, clear pattern, and visual effects.

(d) Others
In addition to the ink, temperature, time and pressure can have an effect on the standard of sublimation transfer, there square measure still some problems within the actual production method that merit our attention. First of all, the choice of paper, the provider with stable quality and high name is the initial selection of printing enterprises. during this respect, Nanking Feile has become the primary selection of the many enterprises, and also the word of mouth is apparent to all:Secondly, it's necessary to comprehend that the color of the dye ink before transfer (the pattern on the paper before heating and pressing) and also the color when transfer (the pattern transferred onto the fabric) square measure terribly completely different, and also the general dye ink seems like before transfer. Darker and boring, looking forward to extreme temperature around two hundred °C to revive true color, therefore it's necessary to perform proofing before printing production:Finally, throughout thermal transfer, ensure that the recent pressing surface, the paper and also the surface of the substrate square measure closely hooked up, and there's no gap. Otherwise, the transfer image could also be blurred.

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