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Dtf Hot Stamping Program To Pay Attention To Several Points

Coating Offset Stamping Process

 

The dope keratin stamping process is to print the water-based dope ink and white ink directly on the medium of PET film, the printer is connected to the spreader, the PET film is printed and then passed through the spreader, the hot melt glue powder is sprinkled on the corresponding pattern, and finally dried and the fixed color is wound up in one step. And there is no restriction on the fabric, a wider range of applications, and no color loss or peeling in water washing.

 

With the mass production and practical application of different printers in the market, new problems have slowly started to appear. Below we analyze and summarize the various emerging problems and response options for you.

 

The first emerging problem is: after the patterned drying, the transfer process in the transfer failure, the pattern can not firmly stick to the fabric. Many printer users are analyzing and studying what is the reason. In fact, the reason is very simple, responsible for the task of bonding only hot melt powder. That must be his responsibility. But why sometimes it can stick, and sometimes it can not stick?

 

For this problem, our R & D department repeatedly researches, experiments, analyses. A little experience was gained. We think there are two reasons for the failure of the transfer. The first is the problem of DTF hot melt powder. The choice of hot melt powder for digital printing powder, sticky powder, shaking powder and the final press has a vital role. The good or bad of the DTF hot melt powder directly determines the success or failure of your customers in the final transfer. Therefore, you must be careful in the choice of dtf hot melt powder, the proportion of dtf hot melt powder in the entire digital printing supplies is very small. Do not cause greater losses to reduce the cost of this!

 

How to choose the hot melt powder?

 

The second reason to decide is the transfer of the fabric and the size of the pattern and application scenario. The flatness of different fabrics is very different. For example, cotton fabric flatness is good, density, the use of general ordinary hot melt powder is easy to hot press success, because the hot melt powder in the unit area and cotton fabric bonding area is large, no gaps. The amount of bonding, solidity is naturally much better. On the contrary, for example; in polo shirts, sunscreen clothing, and other mesh knitted fabrics, due to the uneven surface, and even intervals, some do not have a waxy layer on the surface, and hot melt powder is not bonded. At this time, it is not appropriate to use ordinary hot melt adhesive powder, which can not achieve the ideal adhesive strength.

 

For this problem, we have done a lot of work and finally found a solution: different hot melt powder for different fabrics. First of all, for pure cotton fabrics or fabrics with good flatness, you can use ordinary hot melt powder for digital printing. The adhesiveness is sufficient to cope with the requirements of firmness. For grid-like fabrics or other fabrics that should not be bonded, you must decisively change the hot melt powder, or in the complete pattern can not avoid the end failure.

 

For the type of fabric that should not be bonded, we have developed a high viscosity hot melt powder for digital printing. This hot melt powder has strong adhesion. It can do a good job of bonding to fabrics that are not easy to bond, but the disadvantages are also obvious. Adhesion is strong, then the feel is hard, the feel and stickiness need to choose one of the two. For the transfer of small patterns, LOGO, etc. choosing it is possible, but for large areas of the pattern, you can not choose it. Application scenes such as hat logo pattern, LOGO, small letters or text, etc.

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