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Does too high temperature affect the thermal transfer ink?

Views: 31     Author: Site Editor     Publish Time: 2021-07-12      Origin: Site


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What is the relationship between ink and thermal transfer? The principle of thermal transfer is to stamp the pattern by heating and pressing, which is a new type of printing method. The thermal transfer ink can print the pattern on special paper. It needs to transfer the pattern to the substrate at high temperature. The two are indispensable to each other, so do you know why the ink needs to be effective at high temperatures?


Advantages of thermal transfer: The transfer pattern is colorful and rich in layers, and its effect is comparable to that of printing. It is durable, and the pattern will not fall off, crack or fade. No plate making, very personalized.

Advantages of thermal transfer ink printing: excellent printability, non-toxic ink, low odor, good adhesion, non-sticky; good toughness, good fastness, abrasion resistance and washing resistance. It can reach three levels of light fastness, the ink does not crack, has good elasticity, good hand feeling, good ink leveling and viscous, environmentally friendly, low odor, and can meet export requirements. The light fastness is high, and the color is more ordinary and bright.


What effect does the high heat transfer temperature have on the ink?

Dye-sublimation ink dyes need to have good sublimation transfer and permeability, and reach a certain fastness index after being transferred to the fabric. Generally, disperse dyes with small molecular weight and moderate dispersion temperature are used. Anthraquinone dyes are commonly used in transfer printing dyes. , Azo dyes and cationic dyes. Commonly used binders include low-viscosity ethyl cellulose, ethyl hydroxyethyl cellulose, etc. The binders require low affinity with dyes and can easily release dye gas under high temperature. Commonly used solvents include turpentine, terpineol, high boiling point alkanols, cellosolves, and so on. A small amount of auxiliary additives to improve the performance of the ink itself, such as dryness, viscosity, etc. Hot-melt adhesive inks generally require dyes to be uniformly dispersed in the adhesive layer in the molten state under the action of high temperature and to be well colored on the fabric.

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