Archive: 2022年4月29日

FAQ, News

What is DTF ink printing?

Apr 29, 2022 by admin 0 Comments

(One). What is the DTF ink?

Check out the video of using DTF ink to give you a preliminary understanding of it.

YouTube player
DTF ink working process video.

DTF ink working process:

1. Prepare a printing film. Make sure the printing side up.

There is a layer of coating on the surface of the film. The function of the coating is to absorb ink and hold the ink, making the picture sharp. Meanwhile, the coating is a kind of flexible layer, when you stretch it, it will not break.

Step 1 - Preparing the Printing Film
Step 1 – Preparing the Printing Film

2. Printing colourful pictures, and then printing white colour to cover the picture.

Because of the working step 1‘s film, in the working step 2, you can get a sharp picture. meanwhile, the white colour ink will be covered the surface of the colourful picture. White colour is very important in this technology. It will be the background of the picture on the black/dark T-shirts, to make the colours shinny. White ink also is flexible to bear stretch. And the “wet/not dry” white ink has the function of loading “hot melt powder” in the next step.

Step 2 - Film Printing DTF Ink
Step 2 – Film Printing DTF Ink

3. Spray hot melt adhesive powder on the wet white ink surface.

Hot melt powder is the biggest new part of this technology. Previously, we use hot melt powder in the silk screen’s white. The function of hot melt powder is “glue”, sticking the layer of the picture to the textile. When you heat this kind of powder, it will turn to liquid, and turn sticky. But in a normal environment temperature, it is a solid powder.

Step 3 - Sprinkle with Hot Melt Powder
Step 3 – Sprinkle with Hot Melt Powder

4. Bake the hot melt adhesive to a melted state, at about 80-150 °C, 3-25 Min.

So, after step 4, you get a beautiful picture, with a layer of white background, and then a layer of “glue” background. And more importantly, the “glue” is not sticky at a normal environment temperature. You can roll it up to send to customers, to store there.

Step 4 - Melt and Dry the Hot Melt Powder
Step 4 – Melt and Dry the Hot Melt Powder

5. Heat press at about 150-170 °C, 8-15 seconds.

In step 5, you can cut down the film, without caring about the shape of the picture edge, put it on the surface of cotton textile, press and heat. And then you can peel down the layer of film (without coating), and leave the picture on the textile.

Step 5 - Heat Press the Patterned Film
Step 5 – Heat Press the Patterned Film

6. Peel down the substrate.

Step 6 - Peel off the film after cooling
Step 6 – Peel off the film after cooling

7. You will get a finished product.

Step 7 - Get the Finished Product
Step 7 – Get the Finished Product

(Two). Compare with DTG, DTF technology has two big improvements:

  • The picture on the surface of the textile is very shiny and bright. Even on black textile.
  • It is designed for cotton textile, but not only works on. Theoretically, it can work on all kinds of textiles, such as cotton T-shirts, jeans, sweaters… You can try more and more different material textiles.

DTF ink is for cotton T-shirts, with flexible pictures, can do big-scale industrial use.

Our DTF process has reached the maturity stage after many tests
Our DTF process has reached the maturity stage after many tests

(Three). If you have more questions, you can message us.

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Corporate philosophy
FAQ, News

What is the DTF UV ink printing?

Apr 28, 2022 by admin 1 Comments

DTF UV printing is for hard substrates, like gift pictures.

DTF UV Printing Product Show
DTF UV Printing Product Show
YouTube player

(One). What is DTF UV ink?

There are 2 methods For DTF UV ink printing.

  • Old method: AB film printing. The process is as follows:
    1. Take out A film, which with glue on the surface, and usually it is A4 or A3 size, can not in a roll.
    2. Peel down the surface of A film, expose the glue surface, and then layout the glue surface on the flatbed printer, firm the four corners to the printer flatbed.
    3. Print white colour, and then CMYK colourful pictures.
    4. Cover B film and laminate.
    5. Use cutter equipment (or cut with scissors by hand) along the edge of the picture.
    6. Take out a picture from A film, stick the product surface, and peel down B film.
  • New method: improved method, print glue direct from the print head.
    1. Take out A film which with a layer of coating to absorb ink, without glue on.
    2. Print glue, and then white, and then CMYK for pictures, and then glossy. So, one printer with at least 4 heads.
    3. Roll up the printed film. Send to the customer, anytime he wants to use it, peel one picture from the film, and stick it on the surface of a product.
YouTube player

This glue direct printing DTF UV can do industrial printing, and the printer is very cheap. We can have good wishes for this. But the glue printing by head is still a big challenge and difficult to improve.
DTF UV printing only works on hard product surfaces. It is for small logo printing. Does not require any plate making, can do small quantity printing. Very fast printing, customer send job, wait half hour, then he can take the finished product away. This kind of printing job with very high-profit margin.

(Two). What’s the main difference if using DTF UV printing

  • The printer should have at least 4 heads, one for glue, one for white, one for CMYK, and one for varnish.
  • The film is used for DTF UV printing.
  • The glue is special, should have good adhesion, and be friendly enough to printer head. Usually, glue is not friendly enough for the print head.
  • CMYK and varnish are normal UV ink.

(Three). If you have more questions, you can message us.

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Corporate philosophy
Machines and Materials needed for DTF Ink Printing
FAQ

How to evaluate a DTF ink?

Apr 21, 2022 by admin 3 Comments ,

(One). What is a DTF ink? Is it a normal pigment ink?

Product introduction of DTF printing ink
Product introduction of DTF ink

DTF (direct to film) printing ink is a kind of special pigment ink. If you use normal pigment ink on DTF printing, it will not work well. This kind of DTF ink has very good adhesion with cotton textile, and it has special components to make good flexibility.
DTF ink has very wide compatibility with different textile types. It has a very big market in the clothes market.

YouTube player
The use process of DTF ink

(Two). What is needed for a DTF printing? What do you need for DTF printing?

  1. A water-based printer with good function in printing on film.
  2. A shake powder and baker equipment,
  3. DTF ink,
  4. PET film,
  5. Hot melt powder.
Tools and materials needed for DTF printing
Tools and materials needed for DTF printing

(Three). How to evaluate a DTF ink?

  1. The fluency of white ink. We can print 10 square meters, in 100% ink droplets, to get less than 5 pin breaks.
  2. The fluency of CMYK and other colours. We can print 10 square meters, in 100% ink droplets, to get less than 5 pin breaks.
  3. When the printer is holding from working, how long can it do, to keep the ink printing out the all nozzle hole without cleaning? Need more than 0.5 hours.
  4. How is white ink coverage in 60%, 70%, 80%, 90%, 100%. White ink is good with strong covering power, and not good with weak covering power.
  5. Will white ink appears a little blue or yellow? It should be pure white.
  6. How flexible is white ink on stretch? The more flexible the ink, the better.7.
  7. Is the white grainy? It’s not good to have a grainy feel, but it’s good to be flat.
  8. White wrinkled, peeling is not good, fine and smooth is very good.
  9. The compatibility of white ink and film: It is good when white ink can adapt to more kinds of films; it is not good if it can only adapt to a few kinds of PET films.
Surface effect of hot melt powder after hot melting
Surface effect of hot melt powder after hot melting
  1. The compatibility of CMYK colours ink and film.
  2. If white ink flow ink or water on the film, which is not good white ink, or not good compatible on white and other colours.
  3. Printing environment temperature and humidity range. The larger, the better. Normal operating temperature: 20-30℃, Operating humidity:40-60%.
  4. What is the colour of the pictures? Is it bright? Are the colours a wide gamut? Are the colours true colours?
  5. Can the colour block of each colour be pure and clean and true? If there is any ripple. Mean ink is not compatible with the film. Or printer waveform does not match the ink.
  6. If the printed picture gets oiled surface after several days? It means ink with more oil, or the inside of the ink layer is not totally dried. Can adjust the baker equipment to avoid this.
  7. What is the colourfastness to dry rub, wet rub and high-temperature washing? Normally, 4-5 grade is good for clothes standard.
Print the test effect picture
DTF ink print the test effect picture
YouTube player
DTF ink Printing effect display

(Four). If you want to know how to evaluate PET film, hot melt powder, shake and baker machine, and printers for DTF printing, you can message us.

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Corporate philosophy

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mail : kyna@superinks.com
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