The printing of polyolefin materials often encounters the problem of ink shedding. The main reason is that it is composed of non-polar molecules. The printer will first choose a special polyolefin ink. If the adhesion of the ink does not meet the requirements, then Consider pre-treating the product surface, and flame treatment is a common and effective method.
The most suitable products for flame treatment are some cylindrical plastic bottles, and the effect is satisfactory no matter whether solvent-based ink or UV ink is used. The flame treatment machine for plastic bottles is composed of a flame generating device and a conveyor belt. The conveyor belt is often equipped with a rotatable support cone. The bottle can be inserted into the cone and enter the flame treatment head with the conveyor belt. The inside of the flame treatment head is filled with compressed air and Combustible gas, after ignition, sprays out a flame with pressure, which can oxidize the surface of the bottle. For automatic screen printing machines, flame treatment devices have almost become a standard configuration.
SF250B Cylinder bucket Flame treatment Machine//Usage and characters
Guide
Mainly used for pre-treatment of polyethylene and polypropylene plastic products;
The better ink adhesion is available after the pre-treatment;
Cylinder bottles made by PP PE fit.;
The normal use of the flame treatment Machine in addition to prepare compressed air, but also to prepare a combustible gas, the machine itself an excuse to set the compressed air and combustible gas;
Mainly used for the surface pretreatment of PE and PP plastic products;
Micro motor imported from Japan, stepless speed timing mode is adequate for different workpiece requirement;
The machine is two sides equipped with baffle-boards to improve the heat efficiency;
Advanced gushing nozzle is design generates a good combustion result, it is a product that saves energy;
According to the size of your product that is to be printed, replace the taper support to meet the different requirement of workpiece
Application︰
Before printing, PP and PE materials usually use pre-press treatment to improve the adhesion of the ink. There are many kinds of pre-press treatments, such as flame treatment, high-frequency treatment, plasma treatment, and chemical oxidation treatment. The flame treatment is the most widely used. It uses the jet flame to perform instantaneous high temperature oxidation treatment on the surface of the material, introduce polar molecules, and promote the combination with ink molecules. For plastic barrels with a relatively large diameter, the flame treatment machine needs a larger supporting chassis and a wider transmission width. A separate flame treatment machine is used in combination with a semi-automatic screen printing machine, while a fully automatic screen printing machine is specially installed with a flame treatment unit at the position before printing to realize the integration of flame treatment and screen printing.
