Home > Documents > Application Notes > Print Room
Click Here for Printer Friendly Version
Foamtec Logo
Print Room Cleaning Technique
Best Known Method

OBJECTIVE:

TO INCREASE PRINTER PERFORMANCE BY COMPLETELY ELIMINATING FIBERS, REDUCING CROSS CONTAMINATION AND REDUCING THE NUMBER OF DUMMY SUBSTRATES NEEDED TO ESTABLISH AN EFFECTIVE PRINT
 
Vacuum Chamber: DSP AND PSE PRINTERS
Vacuum Chamber Process Residue: RESIDUAL PASTE LEFT BEHIND ON STENCILS, SCREENS AND PRINTING UTENSILS
Vacuum Chamber Components: PRINTER STENCILS, SCREENS, SHIELD PLATE, WIPER ARM, SPATULA AND ANY OTHER EQUIPMENT USED DURING PRINT RUN
 
  Solvent: IPA and thinner
Vacuum Chamber Products:
  • (1) HT4669 UltraSORB® Foam Wiper
PRINT ROOM CLEANING TECHNIQUE PROCEDURE:
CLEANING PRINTER EQUIPMENT:
View “How to” instructional videos at http://www.foamtecintlwcc.com/video/
Step 1: Using proper procedure and safety guidelines; remove all items from printer that are required to be cleaned and replaced in between print runs
Step 2: Remove excess paste from all utensils using appropriate spatula and deposit paste back into properly labeled paste container
Step 3: Apply a fair amount of isopropyl alcohol onto one UltraSORB® Foam Wiper but ENSURE NOT TO OVERLOAD IPA to where it is dripping (See Fig 1)
Wet Foam Wiper using IPA          Do Not Over-saturate the Wiper
Fig 1: Apply sufficient amount of IPA to foam wiper, but NOT dripping with solvent, to PREVENT wiper from sticking while wiping utensils
     
 
Step 4: Fold UltraSORB® Wiper into ¼’s (quarters) and proceed to gently wipe paste from all utensils
Step 5: Refold foam wiper over to expose all clean sides of the wiper and apply more solvent as necessary to effectively remove paste 
 
Step 6: Repeat steps 3 & 4 as necessary to effectively remove paste from printer equipment.  Tech will be able to clean all printer utensils with 3 UltraSORB® Foam Wipers

Reuse partially dirty wiper for initial wiper of next cleanarrow

Fig 2: This particular foam wiper can still be used as initial wiper for next equipment clean
WIPING DOWN PRINTER:
Step 7:

Apply sufficient amount of isopropyl alcohol onto one UltraSORB® Foam Wiper

 
Step 8: Fold foam wiper into ¼’s (quarters) and proceed to gently wipe paste from all areas within printer that is required to be cleaned (See Fig 3)
 
Fold UltraSORB in quarters
Fig 3: UltraSORB® Foam Wiper folded into quarters
 
Step 9: Repeat steps 1 & 2 as necessary to effectively remove paste from printer
 
NOTE: RECOMMEND WIPING EXCESS PASTE FROM LOADED SCREEN WITH ONE ULTRASORB® FOAM WIPER PRIOR TO PLACING INTO SCREEN WASH
 
WIPING CLEAN SCREEN WHEN PLACED INTO PRINTER:
 
NOTE: THIS REQUIRES VERY LITTLE SOLVENT
 
Step 10: Fold UltraSORB® Foam Wiper into ¼’s (quarters)
 
Step 11: Using a squeeze bottle, apply a single line of solvent ½ inch down from top of foam wiper
 
Step 12: In a smooth back-to-front motion proceed to wipe the underneath side of the clean screen, covering the entire screen (See Fig 4)
 
Wipe the underside in a front to back motion
Fig 4: Underneath side of screen; front-to-back wiping motion
 
Step 13 Refold wiper exposing the driest-side of the foam wiper
 
Step 14: While applying gentle pressure, repeat wiping the underside of the screen with a smooth front-to-back motion
 
NOTE: THIS PARTICULAR TECHNIQUE WILL REDUCE THE NUMBER OF DUMMY PRINTS NEEDED TO BE RUN PRIOR TO ESTABLISHING AN EFFECTIVE PRINT