SP-9500 was developed as a dual-cure emulsion for both the graphic and textile printer. SP-9500 is green in color and it has a solids content of 36% with 11,000 CPS for excellent print definition. SP-9500 is easy to reclaim and a pot life sensitized of 4-6 weeksr. Once SP-9500 is coated its screen life is 1 month under yellow safelights at room temperature.
Applications;
SP-9500 was developed for use with both graphic and textile printers.
Data Facts:
Green in color, this dual-cure emulsion offers 36% sensitized solids and 11,000 CPS sensitized viscosity. Excellent for graphic and plastisol inks. Once sensitized Photocure GFX emulsion should last 4-6 weeks. Photocure GFX will work well with mesh counts above 74 or higher.
Exposure Time Reference:
When using a 5-KW Metal Halide Exposure lamp on mesh counts from 86 to 110 as a guide set your exposure time between 120-140 seconds. On mesh counts of 200 to 300 allow 75 to 120 seconds exposure, and for mesh counts of 350 or more allow 50 to 65 seconds for exposure. Remenber, these exposure settings should only be used as a guide since exposure time will vary depending on equipment used, lamp life, type of emulsion, and applied coatings.
Coating Sequence:
It is not recommended to finish the last coating on the print side of the screen. Finish the last coating on the squeege side. If the coating ends on the print side, the E.O.M. thickness will decrease and go thinner on the print side. This will cause premature stencil breakdown and poor ink deposit.
Resolution and Hardness:
Some printers do underexpose the screen to have details of images resolved on the screen. Unless the number of printing impressions is very low, underexposed screens with poor hardness will cause many problems in the printing process, such as premature breakdown, more fish eyes, and pinholes, locking up emulsions with inks, ink cleaners, or other chemicals. It is important therefore, to locate and standardize a proper exposure time and a good hardness scale by mesh count and coating profiles.
Murakami SP-9500 dual-cure emulsion was developed for both the graphic and textile printer.