Discharge screen printing is becoming ever popular in today’s market. This blog is focused on discharge and dye discharge printing. This is an innovation on screen printer industry. There is difference between digital printer and the screen printer. For example, digital printer can print on the flatbed, but screen printer not. That is a digital flatbed printer here.  
Here is the details of the discharge water based screen printing. DSPS Discharge needs to be activated by Discharge Agent which is a powder that is mixed into the discharge ink 6-10%.  You should only activate as much discharge as you will need to print at a given time as it does have a life span of about 6-8 hours once mixed.  Discharge Agent is a powder and can be ordered by the pound here.
To add dye into your discharge use the Ryonet EnviroLine PC 301 Pigment Inks.  PC stands for pigment concentrate and are mixed at a ratios between 5-15% (typically about 10%) into the activated discharge base. PC pigments are available in quantities of 4, 8, and 16 ounces.
PC Pigments: Mix 10% or less pigment with 100% discharge binder making sure to mix pigment into binder before mixing in the discharge agent.
Discharge Agent: Should be mixed 10% into 100% discharge binder (by weight).  
PRINTING: Once discharge agent is mixed into the discharge binder (with or without pigment) print directly on fabric, flash cure and print Matsui 301 Eco-Series inks directly on top (wet on wet).
Under Basing: An under base can also be accomplished by printing discharge ink, which discharges the dye from the fabric, flashing, and over printing wet on wet w/ RC Ink.  For the ultimate brilliance and soft hand results try our premixed White Discharge which has white pigment mixed in into the discharge leaving a discharged white under base.
Curing Options: Water based inks cure differently from standard plastisol inks.  While plastisol inks cure with infrared once reaching 320 degrees, water based inks cure best with air movement and heat.  Air movement is preferred to drive water out of the ink and blow away steam so heat can cure water base pigment properly. Without hot air movement across the ink, water based inks will take much longer to cure.  In good air flow, water based inks can cure in under 1 minute while it may take 2.5 to 3 minutes in a standard infrared dryer. (Paper can be allowed to air dry)
CLEAN UP:Card off excessive ink and dispose of in trash.  Use Spray way Water Base Screen Opener to break down ink then wipe residue from screens, screen frames, squeegees and any surfaces in contact with ink. Left over residue can also be washed in the sink with water after soaking.
FINISHING: It is highly recommended to wash and dry garments or fabrics before packaging and shipping.