The DTF workflow involves the creation of steam and vapor, a natural byproduct of the water-based inks and hot melting powder application. This gaseous output is something you'll want to manage, as you don't want it billowing into your work environment.

Why You Need a DTF Air Purifier

For those using a separate oven for DTF transfer preparation, a dedicated DTF air purifier is often necessary. These vacuum-powered devices come with flexible hose attachments, allowing you to configure your workspace effectively. Look for purifiers equipped with charcoal and HEPA filters to maintain air purity and a clear, fog-free work area.

What are the fumes in DTF transfer?

Smoke is a mixture of gaseous, liquid and solid substances and air containing a large amount of heat generated by the thermal decomposition of substances during the combustion reaction. It is composed of ash from the complete or incomplete combustion of extremely small carbon black particles and other combustion decomposition products of combustibles. 

The composition and quantity of smoke depend on the chemical composition of the combustibles and the combustion conditions such as the temperature during combustion and the supply of oxygen. 

Under the conditions of complete combustion, the smoke components produced by the combustion of substances are mainly carbon dioxide, carbon monoxide, water vapor, etc.; under the conditions of incomplete combustion, there are not only the above combustion products, but also organic compounds such as alcohol and ether. 

When substances with a high carbon content burn under insufficient oxygen conditions, a large number of carbon particles are produced. Usually, smoke is mainly composed of droplet particles at low temperatures, that is, the smoldering stage, and the smoke is white or bluish white. When the temperature rises to the ignition stage, a large number of free carbon particles are produced due to dehydration reaction, which are often black or gray-black. 

The flow and diffusion speed of smoke is related to the temperature and flow direction of smoke. The diffusion flow speed of smoke in the horizontal direction is generally 0.3 m/s to 0.8 m/s. The vertical diffusion velocity of smoke is relatively high, usually 1m/s to 5m/s. 

In stairwells or pipe shafts, the smoke flow velocity can reach 6m/s to 8m/s due to the pull force generated by the chimney effect. The harm of smoke to the human body is mainly due to the suffocation caused by the harmful gases produced by combustion, the stimulation of human organs, and the effect of high temperature.

The role of a DTF Air Purifier

Principle of waste gas purification:

The internal filtration system of the DTF air purifier absorbs smoke and organic waste gas to achieve the purpose of smoke, dust and odor removal.

The filtration system of the DTF air purifier consists of three parts of the logistics chemical filter element:

1. Pre-filter layer: The F7-level coarse filter cotton with large dust holding capacity is used to first absorb the larger dust particles and oil fume particles in the smoke to protect the main filter layer. Most of the visible particles in the smoke are effectively intercepted, and tiny particles and harmful gases pass through to the main filter layer.

2. Main filter layer: It is composed of HEPA high-efficiency filter mesh, with a purification rate of 99.97% for 0.3μm particles, and most of the tiny particles (including some bacteria) passing through the pre-filter layer are intercepted and adsorbed, and the remaining organic waste gas enters the gas adsorption layer.

3.Gas adsorption layer: It is composed of molecular sieves, activated carbon and oxidants, etc., which decompose and adsorb organic waste gas (harmful gas).

The DTF air purifiers sold on the market generally have low noise, high temperature resistance, light weight, easy to move, super strong filtration absorption, and can filter fine particles.

Conclusion

At TEXTEK, all our products go through rigorous testing and certification to ensure the safety of both manufacturing staff and end customers. Our customers usually purchase DTF air purifier together with DTF printer. Especially for studios and processing plants with high production demand and non-stop production all day long, they need a matching DTF air purifier to ensure the production environment.

DTF air purifier occupies a small area and is inexpensive. It can purify air and odor during DTF printing, reduce environmental pollution, and avoid damage to the respiratory system of workers. It is a product worth buying and investing in, helping DTF printing to develop sustainably and healthily in the long term.
 

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