The white ink heat transfer process has been deeply loved by industry manufacturers. Many manufacturers are troubled by not knowing how to choose consumables after purchasing a white ink heat transfer printer. Indeed, there are many types of consumables for white ink heat transfer printers on the market, especially TPU hot melt powder. So, will you choose TPU hot melt powder?

First of all, we will let you know what TPU hot melt powder is.

TPU hot melt powder looks ordinary, but it is actually a kind of glue. Glue is an intermediate connecting two materials, and there are many kinds, mostly in water. Hot melt powder appears in powder form.

In fact, TPU hot melt powder is not only used in the white ink heat transfer process, but also widely used.

TPU hot melt powder is used in the printing of various textiles, leather, paper, wood and other materials and the configuration of various adhesives. The glue made with it has the characteristics of water resistance, high fastness, fast drying speed, not easy to block the net, and does not affect the color of the ink, which is a new type of environmentally friendly material.

So, what is the role of TPU hot melt powder in the white ink heat transfer process? How is it applied in the white ink heat transfer process?

After the white ink heat transfer printer has finished printing the color part of the pattern, a layer of white ink will be attached to it. Then, through the powder sprinkling function and powder shaking function in the white ink heat transfer shaker, the TPU hot melt powder is evenly sprinkled on the layer of white ink. Because the white ink is liquid and wet, it will automatically stick to the TPU hot melt powder. Where there is no ink, the powder will not stick. Then, enter the arch bridge or crawler transmission, dry the pattern ink and fix the TPU hot melt powder on the white ink. In this way, the finished product of a white ink heat transfer pattern is completed.

After that, the pattern is pressed and fixed on other fabrics such as clothes through an ironing machine. Lay the clothes tiled, place the finished white ink heat transfer product up in position, melt the TPU hot melt powder with the appropriate temperature, pressure and time, and stick the pattern and clothes together to fix the pattern on the clothes. In this way, the customized clothes processed by the white ink heat transfer process are completed.

And there are many types of TPU hot melt powder.

First of all, there are coarse powder, medium powder, and fine powder . The coarse powder particles are larger, the thickness is higher, and the feel is hard. It is suitable for coarse-grained cotton and linen or denim such as cotton and linen tote bags, denim clothes, school bags, etc.; the medium powder particles are smaller, soft to the touch, water-resistant, suitable for general cotton and polyester fabrics, medium and low elastic fabrics such as T-shirts, sweaters, sportswear, environmental protection bags, etc.; while the fine powder is smaller than the medium powder particles, it is suitable for T-shirts, sweaters, and sportswear, and can also be marked with very small washing water labels and marks.

Secondly, there are also mesh numbers. The larger the mesh number, the more fine TPU hot melt powder can be used on fabrics. At present, the most commonly used TPU hot melt powders on the market are 60, 80, 90, and 120 mesh.

Is the larger the mesh size of the fine powder the best? Manufacturers must keep in mind when choosing consumables, not the more expensive the better, but the more suitable the better . Choose the right consumables according to your own fabrics to maximize the use of consumables, otherwise the cost of consumables will be wasted.

In addition, according to TPU hot melt powder, there are high temperature powder and low temperature powder. General TPU hot melt powder needs to be ironed at high temperature to melt and fix it on clothes. And TPU hot melt low temperature powder can be ironed at low temperature, which is more convenient. TPU hot melt high temperature powder is resistant to high temperature washing. Of course, general TPU hot melt powder will not fall off in our daily life water temperature washing.

Finally, TPU hot melt powder is also divided into color . The most common is white hot melt powder, which is basically used by most manufacturers. There is also black hot melt powder, which is more commonly used on black fabrics.

Therefore, when choosing TPU hot melt powder, you must first understand its function, and then choose the appropriate TPU hot melt powder according to the type of fabric.