Ink is not simply a colored liquid added to a printer.
Every printing process requires an ink formulation designed for a specific printhead, printing surface, curing method and production workflow. DTF ink, sublimation ink, DTG ink and UV ink may all produce full-color images, but they cannot be used interchangeably.
Using the wrong ink can cause:
Poor color output
Weak adhesion
Printhead clogging
Ink separation
Failed curing
Damaged ink lines
Short product life
Permanent printer damage
For a custom printing business, choosing the correct ink is therefore just as important as choosing the printer itself.
This guide explains how the main types of digital printing ink work, which materials they support, why white ink requires special maintenance and why printer ink, media, RIP software and color profiles must be treated as one complete system.
| Tip de cerneală | Main printing process | Typical colorant or curing method | Cele mai bune aplicații |
|---|---|---|---|
| Cerneală DTF | Direct-to-film transfer | Heat-transfer pigment ink | Cotton, polyester, blends and dark apparel |
| Cerneala de sublimare | Dye-sublimation transfer | Disperse dye | Polyester and polymer-coated products |
| DTG ink | Direct-to-garment printing | Water-based pigment ink | Cotton garments and selected treated fabrics |
| Cerneală UV | UV flatbed and UV DTF printing | Cerneală tratabilă cu UV | Acrylic, glass, metal, plastic, wood and coated surfaces |
| Standard dye ink | Documents and photographs | Water-soluble dye | Paper and photo media |
| Standard pigment ink | Documents and fine-art printing | Pigment particles | Paper, labels and archival prints |
| Solvent ink | Sign and graphics printing | Solvent-carried colorant | Vinyl, banners and outdoor signage |
The four most relevant types for a personalized printing business are DTF, sublimation, DTG and UV ink.
Although formulations differ, inkjet ink usually contains several functional components.
The colorant creates the visible color.
It may be:
Pigment particles
Dissolved dyes
Disperse dyes
UV-curable color components
Pigments remain as very small solid particles in the formulation. Dyes are dissolved or dispersed and interact differently with the final material.
The carrier helps move the ink through the ink system and printhead.
Depending on the ink technology, the carrier may be primarily:
Water
Solvents
Glycols
UV-curable liquid components
Binders help the colorant attach to the printing surface.
They influence:
Adeziune
Flexibilitate
Gloss
Scratch resistance
Rezistenta la spalare
Senzație de suprafață
Additives control properties such as:
Surface tension
Viscosity
Drying behavior
Foam control
Ink flow
Storage stability
Nozzle performance
Small formulation differences can significantly affect how an ink behaves inside a printhead. This is one reason inks from different systems should not be mixed casually.

DTF ink is designed for direct-to-film transfer printing.
The ink is printed onto a specially coated PET film rather than directly onto the garment. After printing, hot-melt adhesive powder is applied and cured. The completed design is then transferred to the fabric using a heat press.
Professional DTF systems commonly use five ink channels:
Cyan
Magenta
Galben
Negru
Alb
Un flux de lucru tipic DTF include:
Printing the color layer onto coated PET film
Printing a white ink layer
Aplicarea pudrei adezive topibile la cald
Curing the powder
Positioning the transfer on the garment
Heat pressing the transfer
Decojirea filmului purtător
Completing a finishing press when required
The ink, film, adhesive powder and pressing conditions must work together.
You can learn more about the complete material system in EraSmart’s Ghid de consumabile DTF.
DTF transfers can commonly be used on:
Bumbac
Poliester
Amestecuri bumbac-poliester
Pânză
Lână
Denim
Îmbrăcăminte lejeră
Hainele închise la culoare
The white ink underbase allows the color layer to remain visible on black, navy, red and other dark fabrics.
DTF ink supports:
Full-color graphics
White printing
Dark garment decoration
Detalii fine
Small-batch production
Multiple fabric types
Custom gang sheets
Flexible apparel workflows
DTF ink also introduces several challenges:
White ink requires circulation and maintenance.
Ink must match the PET film and powder.
Incorrect curing can weaken adhesion.
Poor-quality ink may increase nozzle problems.
Large solid designs may produce a more noticeable surface feel.
The printer should not remain idle without proper maintenance.

Sublimation ink is a dye-based ink formulated for heat transfer onto polyester or polymer-coated products.
The design is first printed onto sublimation paper. During heat pressing, the disperse dye becomes mobile and enters the polyester fiber or compatible coating. After cooling, the color becomes part of the material.
The basic process includes:
Printing a mirrored design onto sublimation paper
Positioning the paper on the product
Fixing it with heat-resistant tape
Applying the required heat, time and pressure
Removing the transfer paper
Allowing the product to cool
The exact pressing conditions depend on the ink, paper, blank, coating and heat press. There is no single universal setting for every sublimation product.
Sublimarea funcționează cel mai bine pe:
Cămăși albe din poliester
Light-colored polyester garments
Coated ceramic mugs
Pahare acoperite
Mousepad-uri
Phone case inserts
Fete de perna din poliester
Coated aluminum panels
Chestii
Coasters
Photo gifts
Sublimation dye needs polyester or a compatible polymer coating.
Ordinary cotton does not provide the same dye-binding structure. A sublimated design on untreated cotton may appear weak and may not provide acceptable wash durability.
Sublimation ink is transparent and normally does not include white ink.
The color of the product remains visible underneath the design. This is why sublimation performs best on white or light surfaces.
Sublimation can provide:
Gradienți netede
Photo-quality output
No raised transfer layer
Strong durability on compatible materials
Full-color gift products
Low material consumption
Easy personalization
Its limitations include:
Restricted material compatibility
Poor visibility on dark products
No white ink
Dependence on coating quality
Potential ghosting if paper moves
Color variation caused by incorrect ICC profiles or pressing conditions
For a more detailed business comparison, see Imprimare DTF vs imprimare prin sublimare.
DTF and sublimation are both heat-transfer processes, but the inks behave differently.
| Comparaţie | Cerneală DTF | Cerneala de sublimare |
|---|---|---|
| Ink category | Heat-transfer pigment ink | Disperse dye ink |
| Printing medium | Coated PET film | Hârtie de sublimare |
| Cerneală albă | Da | Nu |
| Pulbere adezivă | Necesar | Nu este necesar |
| Best fabrics | Bumbac, poliester și amestecuri | Poliester |
| Hainele închise la culoare | Suitable | Generally unsuitable |
| Coated hard products | Limitat | Highly suitable |
| Senzație de suprafață | Rămâne un strat de transfer | Dye becomes part of the material |
| Printer maintenance | Higher because of white ink | Generally lower |
| Main products | Îmbrăcăminte | Apparel and personalized gifts |
The correct choice depends more on the product than on which ink is “better.”
Choose DTF for dark cotton apparel, hoodies, uniforms and tote bags. Choose sublimation for polyester garments, mugs, mousepads and coated photo gifts.

DTG stands for direct-to-garment printing.
Unlike DTF, DTG ink is printed directly onto the garment. The printed fabric is then heat-cured to fix the ink.
DTG systems commonly use water-based pigment inks in:
Cyan
Magenta
Galben
Negru
Alb
A typical DTG workflow includes:
Preparing the garment
Applying pretreatment when required
Drying or pressing the pretreatment
Loading the garment onto the platen
Printing directly onto the fabric
Heat curing the printed garment
DTG is commonly used for:
Premium cotton T-shirts
Detailed artwork
Photographic shirt printing
One-off custom garments
Small-batch fashion products
Designs requiring a softer feel on cotton
| Comparaţie | Cerneală DTF | DTG ink |
|---|---|---|
| Printed onto | Film PET | Îmbrăcăminte |
| Pulbere adezivă | Necesar | Nu este necesar |
| Pretreatment | Usually not applied to the garment | Often required |
| Fabric range | Broad | Strongest on suitable cotton |
| Fluxul de lucru | Transfer production and pressing | Direct printing and curing |
| Storage of prints | Transfers can be produced in advance | Garment is printed directly |
| Fine cotton feel | Bun | Often softer on suitable garments |
You can explore the differences further in EraSmart’s DTG printer vs DTF printer guide.

UV ink is designed to cure under ultraviolet light.
Instead of drying primarily through evaporation or being heat-transferred into a fabric, UV-curable ink changes into a solid printed layer when exposed to the printer’s UV LED lamps.
Mimaki explains that UV ink cures and adheres directly to the substrate under UV radiation. UV systems can print on non-absorbent materials such as plastic, glass and metal, and different hard or flexible formulations are available for different applications.
A UV printer may use:
Cyan
Magenta
Galben
Negru
Alb
Varnish or clear ink
Primer in supported systems
Light cyan and light magenta in some configurations
Depending on the printer and fixture, UV ink may be used on:
Acril
Sticlă
Metal
Lemn
Plastic
Piele
ceramică
Carcase de telefon
Produse promotionale
Signs
Ambalaj
Panouri plate
White UV ink can be used as:
An underbase beneath color
A backing layer on transparent material
A standalone white design
Part of multilayer printing
Clear or varnish ink can create:
Gloss effects
Spot highlights
Textured surfaces
Raised details
Protective visual effects
Read EraSmart’s UV ink guide for CMYK, white and varnish for a more detailed explanation.
DTF and UV printing are designed for different product categories.
| Comparaţie | Cerneală DTF | Cerneală UV |
|---|---|---|
| Primary products | Fabric and apparel | Hard and semi-rigid products |
| Metoda de întărire | Powder curing and heat pressing | UV LED curing |
| Transfer medium | Film PET | Usually direct printing |
| Cerneală albă | Da | Commonly available |
| Lac | Normally no | Available on supported systems |
| Cotton garments | Suitable through transfer | Generally not the main application |
| Acrylic and metal | Not the main use | Suitable |
| Senzație de suprafață | Flexible transfer layer | Cured ink film |
UV DTF is a separate process that uses UV ink to print onto an adhesive film system before transferring the graphic to a hard product.
To avoid confusing these technologies, see UV DTF vs textile DTF vs UV flatbed printing.

White ink behaves differently from standard CMYK ink.
White formulations contain dense pigment to create opacity. These particles are more likely to settle when the printer remains idle or when the ink is not circulated correctly.
Potential problems include:
Reduced white density
Nozzle loss
Ink separation
Uneven underbase
White ink mist
Deflected droplets
Clogged ink paths
Printer manufacturers therefore use features such as:
Circulație de cerneală albă
Automatic stirring
Scheduled head refresh
Cartridge or ink-pack agitation
Guided cleaning cycles
The correct procedure depends on the printer model. Follow the machine manual rather than applying a generic maintenance schedule.
For practical prevention steps, read how to prevent white ink clogging.
Two ink bottles may appear to contain the same CMYK colors, but their formulations may differ in:
Viscosity
Surface tension
Pigment size
Dye concentration
Resin chemistry
Drying behavior
Curing requirements
pH
Printhead compatibility
Mixing incompatible inks may cause:
Chemical reactions
Sediment
Gel formation
Ink separation
Color shifts
Blocked dampers
Damaged printheads
Unstable white ink
Never combine:
DTF ink and sublimation ink
UV ink and water-based ink
DTG ink and UV ink
Cleaning solution and ink without an approved procedure
Different brands merely because the colors appear similar
Even two products labeled “DTF ink” may not be suitable for mixing.
Before changing ink, confirm whether the printer requires:
Complete draining
Flushing solution
New dampers
New ink lines
New ICC profiles
Printer recalibration
EraSmart’s Ghid de compatibilitate cu cerneala DTF explains the checks that should be completed before switching ink.
An ICC profile or RIP ink curve controls how color data is converted into printer output.
The final result depends on the combination of:
Imprimantă
CHEAD
Cerneală
Media
Rezoluţie
Pass mode
Densitatea cernelii albe
Setări RIP
Curing or pressing conditions
Changing the ink can change:
Densitatea culorii
Gray balance
Total ink limit
Black generation
Saturation
Drying behavior
White underbase requirements
A profile created for one ink, film and printer combination may not reproduce the same colors after any component is changed.
This is why apparently identical CMYK values can produce different printed results.
For additional color-management guidance, see cum să imprimați culorile corecte.
First identify whether the machine is:
DTF
Sublimare
DTG
Plată UV
UV DTF
Eco-solvent
Standard aqueous inkjet
Do not select ink based only on bottle size or color.
Verifica:
Printer model
Printhead model
Ink channel configuration
Ink delivery system
Manufacturer specifications
A compatible printhead does not automatically mean the entire printer is compatible with the ink.
Choose the ink based on what you intend to produce.
Use DTF ink for:
Îmbrăcăminte din bumbac
Hainele închise la culoare
Hanorace
Genți de tote
Fabric transfers
Use sublimation ink for:
Cămăși din poliester
Căni
Pahare
Mousepad-uri
Coated photo products
Use DTG ink for:
Direct garment printing
Premium cotton T-shirts
Detailed one-off apparel
Use UV ink for:
Acril
Sticlă
Metal
Plastic
Carcase de telefon
Rigid promotional products
For DTF, verify compatibility among:
Cerneală
Film PET
Pulbere adezivă
Profil RIP
Echipament de întărire
Setări prese de căldură
For sublimation, verify:
Cerneală
Hârtie
Profil ICC
Acoperire goală
Pressing settings
For UV printing, verify:
Ink hardness or flexibility
Substrate
Primer
Cerneală albă
Lac
UV lamp settings
Always follow the label, user manual and safety data sheet supplied with the ink.
General best practices include:
Store ink in its original sealed container.
Keep it away from direct sunlight.
Avoid extreme heat or freezing.
Keep the bottle clean before opening.
Do not return used ink to the original container.
Record the opening date.
Use older stock first.
Follow the stated expiration date.
Wear suitable protective equipment.
Keep ink away from children and food areas.
Review the relevant safety data sheet.
Do not apply one universal shelf-life rule to every ink. Storage life varies by formulation, packaging and manufacturer.
Cauzele posibile includ:
Dried ink
Settled white pigment
Air in the ink line
Expired ink
Contaminated dampers
Incorrect maintenance
Cauzele posibile includ:
Profil ICC incorect
Low ink density
Incorrect media
Poor curing
Low-quality coating
Settled pigment
Incorrect print mode
Cauzele posibile includ:
Wrong ink technology
Incompatible surface
Missing primer
Incorrect curing
Incorrect film coating
Contaminated material
Cauzele posibile includ:
Different pigment or dye characteristics
Old ink remaining in the system
Profil ICC incorect
Changed white ink density
Different media response
Cauzele posibile includ:
Incompatible ink
Poor storage
Mixed formulations
Long idle periods
Insufficient white ink circulation
Incorrect cleaning solution
Contamination
A matched ink system usually provides the lowest operational risk because the printer, ink delivery system, RIP profile and maintenance procedure have been tested together.
This can help improve:
Consistența culorii
Nozzle stability
White ink performance
Adeziune
Suport tehnic
Depanare
Warranty clarity
The lowest-priced ink is not necessarily the lowest-cost ink to operate.
A cheaper bottle can become expensive if it causes:
Failed prints
Wasted film
Damaged garments
Excessive cleaning
Shortened printhead life
Production downtime
Evaluate ink by total production cost rather than bottle price alone.
DTF, sublimation, DTG and UV ink are different chemical and production systems.
DTF ink is a heat-transfer pigment system designed for PET film, adhesive powder and fabric pressing.
Sublimation ink uses disperse dye to color polyester fibers and polymer-coated products.
DTG ink is printed directly onto prepared garments and then heat-cured.
UV ink cures under UV LED light and creates a durable printed layer on many rigid or non-absorbent materials.
None of these inks should be substituted based only on color or appearance.
Before purchasing ink, confirm:
Printer technology
Printer model
CHEAD
Ink channel configuration
Media
Metoda de întărire
Profil RIP
Aplicație
Supplier support
The best ink is not simply the one that produces the brightest test print. It is the ink that provides stable jetting, predictable color, reliable adhesion and repeatable production throughout the life of the printer.
EraSmart provides DTF, DTG, UV and UV DTF printing solutions for different custom printing workflows. Explore the EraSmart DTF printer range or review the UV printer guide to choose a printing system suited to your materials and business model.
No. DTF ink is a heat-transfer pigment ink used with coated PET film and adhesive powder. Sublimation ink uses disperse dye and is transferred from paper into polyester or a polymer coating.
No. Sublimation ink does not provide the white underbase, film behavior or adhesive workflow required for textile DTF production.
No. DTF pigment ink is not designed to diffuse into polyester in the same way as sublimation dye.
Commercial DTF inks are commonly formulated as aqueous heat-transfer pigment inks, but users should confirm the specification and safety data sheet of the exact product.
White ink creates an opaque underbase beneath CMYK colors, allowing designs to remain vivid on dark and colored garments.
Sublimation relies on transparent dyes entering polyester or a polymer coating. White areas normally come from the white product surface itself.
White ink contains dense pigment for opacity. The pigment can settle when the ink is not circulated or agitated according to the printer’s maintenance requirements.
Mixing is not recommended unless compatibility has been explicitly confirmed. Differences in chemistry, viscosity and pigment behavior can cause instability or printhead damage.
It often does. Different ink formulations can alter color density, gray balance, saturation and total ink limits.
Choose according to your products:
DTF for cotton and dark apparel
Sublimation for polyester and coated gifts
DTG for direct premium garment printing
UV for hard and promotional products
imprimantă UV
Imprimantă DTF
Imprimantă DTG
Mașină de presă de căldură
Imprimantă publicitară
Cuptor DTF
Presă fierbinte
Mașină de sculptură
Transfer de căldură cu cană
Mașină de laminare
Cerneală tipografică
Carcasă pentru telefonul mobil
Produs de sticlă
Curățarea lichidului
Tampon de bumbac
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