TPU hot-melt powder

What is DTF Hot Melt Powder?

DTF hot melt powder, one of the most essential consumables in DTF printing, is often powdered on the back of water ink by powder shaker or manual power. Without the presence of DTF hot melt powder, along with DTF ink and DTF PET film, the DTF printing process cannot be successfully completed.

Characteristics of DTF hot melt powder

DTF hot melt powder has become popular in printing business because of its unique characteristics: temperature resistance, abrasion resistance, humidity resistance, acid alkali resistance, corrosion resistance and heat resistance. In addition to this, DTF hot melt powder is water-proof, which effectively prolongs the lifespan of products.

  1. Temperature resistance.Under the temperature from -50℃ to 180℃,the performance of DTF hot melt powder will not be influenced, guaranteeing the stability and usage lifespan of products.
  2. Abrasion resistance. DTF hot melt powder is of excellent abrasion resistance. It is durable and stretch-resistant.
  3. Humidity resistance. DTF hot melt powder has a large amount of thermoplastic polymer that can absorb moisture effectively , maintaining the product stability for a long time.
  4. Acid alkali resistance. DTF hot melt powder can resist the corrosion of strong acid and alkali, prevent the corrosion effectively.
  5. Corrosion resistance. DTF hot melt powder is able to prevent the products from the corrosion of oxidant and oil.
  6. Heat resistance. DTF hot melt powder is of excellent heat resistance, making it can withstand high temperature.
DTF Powder
DTF Powder

Differences between traditional hot melt powder and DTF hot melt powder

Traditional hot melt powder does not require curing, unlike DTF hot melt powder. The main reason for this is that the ink used in traditional hot transfer does not contain excessive glycerin and water. However, in digital hot transfer, curing is necessary to prevent the occurrence of Ink oil return phenomenon.

The particles of traditional hot melt powder are typically larger, usually ranging from 120-150um. In contrast, DTF hot melt powder particles are often softer and fall within the range of 80-160um.

The ingredients vary slightly between traditional hot melt powder and DTF hot melt powder. Traditional hot melt powder allows for the selection of different powder components to achieve varying levels of fastness, feel, and tension. On the other hand, DTF hot melt powder is made of high-purity TPU powder. This high-purity TPU DTF hot melt powder offers excellent resilience, stretch resistance, and is less prone to cracking and deformation.

Classifications of DTF hot melt powder

Generally speaking, DTF hot melt powder can be classified into the following types: soft DTF powder, rough DTF powder, anti-stretch DTF powder, anti-sublimation DTF powder and easy-to-peel DTF powder.

  1. Soft DTF powder. The particle size is about 80-170um. The soft DTF powder melts easily and leaves a soft and smooth finish after transfer. It is suitable for use on smooth and flat fabrics like T-shirts, sweaters, and polo shirts.
  2. Rough DTF powder. The particle size is 120-250um. After transferring, the hand feel of this type of DTF powder is not soft relatively. It is suitable for rough fabrics, such as denim, non-woven fabrics, and linen.
  3. Anti-stretch DTF powder. This powder is very fine and easy to melt. The finished product is stretch-resistant. So it is suitable for stretch fabric.
  4. Anti-sublimation DTF powder. It is used to block clothing colors or patterns that may be visible through transfer, suitable for dark fabrics.  
  5. Easy-to-peel DTF powder. As the name shows, using easy-to-peel DTF powder, even with ordinary cold peel DTF film can also achieve instant tearing without waiting.
Classifications
Features
Soft DTF Powder
Particle size 80-170um, easy to melt, soft and smooth after the transfer, suitable for smooth and flat fabrics, such as T-shirts, sweaters, sweaters, polo shirts
Rough DTF Powder
Particle size: 120–250, easy to melt. After transferring, the hand feel is obvious. It is suitable for rough fabrics, such as denim, non-woven fabrics, and linen.
Anti-stretch DTF Powder
This powder is very fine and easy to melt, the transfer finished product is stretch-resistant and suitable for stretch fabric
Anti-sublimation DTF powder
It is used to block clothing colors or patterns that may be visible through transfer. And it is easy to melt, making it suitable for dark fabrics.
Easy-to-Peel DTF powder
Using easy-to-peel DTF powder, even with ordinary cold peel DTF film can also achieve instant tearing without waiting.

Advantages of DTF hot melt powder

  1. DTF hot melt powder can be applied in different fields, not only in DTF printing. Hot stamping, flocking printing, woven and non-woven interlining, shoe lining, shoulder lining and other industries all can use DTF hot melt powder.
  2. DTF Hot Melt Powder is is not only effective but also safe and non-toxic when used correctly with the appropriate safety equipment. In addition, the DTF hot melt powder offers an eco-friendly solution by generating less waste compared to alternative bonding methods. The surplus powder can be absorbed and processed by purifier, resulting in minimal environmental impact.
  3. It is very easy to use DTF hot melt powder. If you have powder shaker machine, you can pour the powder into the machine. And then the powder shaker machine will shake the powder to the film surface automatically. At the same time, the powder shaker machine will cure the powder quickly. While if you do not own a powder shaker, you can apply the powder to the surface of film by yourself.
  4. As mentioned above,the characteristics of DTF film make it durable, high temperature resistant, anti-stretch. It is also of excellent adhesion and wash ability.

How to store DTF hot melt powder

DTF hot melt powder must be sealed in time after use, otherwise the hot melt powder will be condensed into blocks due to moisture, and the powder will not be uniform when spreading, affecting the transfer effect.

In summary, the quality of DTF hot melt powder plays a crucial role in the printing performance as an essential part of DTF printing. When choosing a DTF hot melt powder, it is important to prioritize a qualified and reliable option. As a professional in the digital printing field, SUBLISTAR offers excellent DTF hot melt powder along with reliable after-sales service, making it a great choice.

FAQ

How long does it take for DTF hot melt powder to cure?

With the help of powder shaker machine or seperate curing oven, DTF powder can be cured in a quick time. It will not take you too much time to cure the powder.

Yes, a heat press machine can also cure the DTF hot melt powder.

No. The DTF powder is special for DTF printing. If you use other hot melt powder, that will influence printing result and damage the printer.

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