As a popular digital printing process, white ink heat transfer is widely used in personalized customization fields such as clothing, shoes and hats, pillows, and handbags.
However, in the actual operation process, the problem of unclean powder shaking of the heat transfer film is often encountered, which not only affects the appearance of the product, but also affects the delivery quality of the order.
Today we will list six reasons why the white ink heat transfer film powder is not shaken cleanly, and provide you with solutions.
Situation1 | Pattern edge powder
01 Ink Problems
If the concentration of white ink is too low, ink flow may occur, and the water in the white ink will seep beyond the edge of the pattern, causing excess hot melt powder to stick to the edge of the pattern when shaking the powder.
You can observe that if there are water stains around the printed film pattern before powdering, it may be caused by low ink concentration.
Solution: ① Make sure the white ink is shaken evenly before adding it, and change to better quality ink; ② Increase the baking temperature before sprinkling powder.
02 environmental problems
When the humidity of the operating environment is higher than 70%, it will affect the drying speed and drying effect of white ink, causing the consumables to become damp and sticky.
Solution: Add a dehumidifier or choose a printing device with a multi-stage drying system.
03 DTF film is damp
If the humidity is too high or the consumables are not stored properly and get damp, the unused DTF film on the machine will also be easily damp, which will cause the film to stick to powder.
Solution: Turn on the printer drying system to dry the moisture of the DTF film.
Situation two | Blank area with powder/large area with powder
04 Hot melt powder is damp
When hot melt powder is damp, it will form lumps and cause sticking. When using it, a large area of powder sticks when printing.
Solution: Do a good job of moisture-proofing the hot melt powder and store it according to the storage conditions of consumables. For the hot melt powder that has been damp in the machine, it is recommended to clean it up as soon as possible and replace it with normal hot melt powder to avoid losses.
05 DTF film quality problem
If the DTF film is sticky and the problem can be solved by replacing it with another type of DTF film, it is a quality problem of the DTF film itself.
Solution: It is recommended to replace the matching DTF film, and the manufacturer's matching consumables can be selected.
Situation three | Other reasons
06 Machine design problem
If the above factors are excluded and there is still unclean hot melt powder on the DTF film, it may be a design problem of the powder shaking machine.
Functions such as powder shaking force control, multi-stage drying design, and baking temperature control can effectively solve the problem of sticky powder.
Baocai 5 Printheads DTF printer, together with the extended version of the powder shaking machine, the two complement each other, and its design is perfect.
Baocai powder shaking machine is equipped with a front guide plate, and pre-baking before powdering can effectively reduce the powder residue outside the pattern of the DTF film;
With an extended oven, two-stage independent heating, and a customized lamp solution, the baking is more uniform, effectively solving problems such as water and oil return, and improving production quality;
The mesh belt feeding method is adopted, equipped with a strong turbine suction, which greatly facilitates the feeding operation and reduces the waste of DTF film.
Equipped with Baocai RIP software, the spot color channel is generated with one key, and the layout is automatically arranged with one key, which effectively improves production efficiency.
The root of many problems often lies in the details. Whether it is the careful selection of printers, DTF films, inks, or strict control of the operating environment, every link is crucial and cannot be ignored to ensure the quality of DTF transfer printing and complete the order delivery with high quality and efficiency.
Guangdong Baocai has focused on the research and development and manufacturing of digital printing equipment and consumables for 14 years, and is committed to providing the industry with more low-cost, high-quality digital printing solutions and professional and worry-free after-sales service.
Welcome to contact Baocai to customize digital printing solutions for you.
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