DTF printing：How to choose hot melt adhesive powder for white ink heat transfer
Choosing hot melt adhesive powder suitable for white ink heat transfer is a key step to ensure the quality of the final effect. There are many types of hot melt adhesive powder, each type has its specific properties and scope of application. Here are a few important factors to consider when choosing hot melt adhesive powder for white ink heat transfer:
1. Adhesion strength: Choose hot melt adhesive powder with high adhesion strength to ensure that the heat transfer can be firmly attached to the fabric and will not fall off easily even after multiple washings.
2. Melting point: Different hot melt adhesive powders have different melting points. It is important to choose a melting point range that suits your heat transfer machine and fabric to ensure that the hot melt adhesive can melt and solidify at the appropriate temperature without damaging the fabric.
3. Particle size: The particle size of the hot melt adhesive powder directly affects the detail performance of the heat transfer.
Hot melt powder is divided into: coarse powder, medium powder and fine powder.
Hot melt powder has different particle sizes, coarse powder is 250-400um, medium powder is 80-250um, and fine powder is 0-80um, which have different functions.
For example, coarse powder is mainly used for flocking transfer.
Medium powder is mainly used for white ink heat transfer powder shaking process, with uniform particles, suitable for machine powdering and manual powdering. Sprinkled on the heat transfer film through the powder shaking process, it requires no fine powder residue, good water washing fastness, and no clogging of the net.
The fine powder is mainly used to disperse in the glue. The glue made by hot melt powder has the characteristics of high water resistance, fast drying speed, and no effect on the color of ink.
4. Flexibility: Highly flexible glue powder can ensure that the fabric after the heat transfer is completed maintains good comfort and elasticity, especially for parts that need to be bent frequently, such as the elbows or knees of clothes.
5. Transparency: For white ink heat transfer, choosing hot melt glue powder with high transparency can ensure the bright and true color of the pattern, making the final effect more beautiful.
6. Environmental performance: Considering environmental protection and user health, it is also very important to choose non-toxic and environmentally friendly hot melt adhesive powder. Make sure that the selected adhesive powder meets the relevant safety and environmental standards.
In short, choosing hot melt adhesive powder suitable for white ink heat transfer requires comprehensive consideration of multiple factors such as bonding strength, melting point, particle size, flexibility, transparency, and environmental performance. The right choice can greatly improve the quality and durability of heat transfer and ensure the beauty and practicality of the final product.