4. FRAME
FRAME ARE MADE OF JOINING THE END
OF FOUR WALLS WITH EACH OTHER, & USED
FOR HOLDING THE SCREEN.
THESE WALLS OF FRAME ARE GENRALY
PREPARED BY TWO MATERIALS.
1. wood
2. metal {steel, aluminium}
6. SCREEN
SCREEN IS A PORUS MATERIAL, WHICH
ALLOWS THE INK TO PENITRATE BY PRESSURE
OF SQUEEGEE.
THE TWO BASIC CATEGORIES OF FABRIC
COMMANLY USE IN SCREEN PRINTING ARE_
1. MONOFILAMENT FABRICS
2. MULTIFILAMENT FABRICS
7. MONOFILAMENT FABRICS
THESE ARE MADE UP OF SINGLE STRENDS
OF SYNTHETIC FIBERS, WHICH ARE WOVEN
TOGETHER TO FORM A PORUS MESH.
EX_ 1. NYLON MESH
2.WIRE MESH
3.METALISED POLYESTER
8. MULTIFILAMENT FEBRICS
THESE ARE MADE UP OF MANY FINE
STRANDS TWISTED TOGETHER TO FORM A
SINGLE THREAD, WHICH ARE WOWEN
TOGETHER TO FORM A SCREEN MESH.
EX_ 1. SILK
2. POLYESTER
9. 4 HUMIDITY AFFECTED LESS
AFFECTED
AFFECTED NOT
AFFECTED
NOT
AFFECTED
5 STENTIAL
ADHERE
GOOD NOT SO
GOOD
GOOD GOOD
ADHERE
GOOD
ADHERE
6 REGISTRA
TION
NOT
GOOD
GOOD GOOD GOOD GOOD
COMPARISION OF SCREEN MESH
S NO. PROPERTY SILK POLYESTEA
FFECTEDR
GOOD
NYLON WIRE MESH METALISED
POLYESTER
1 Material NATURAL SYNTHETIC
(DECRON)
NYLON STAINLESS
STEEL WIRE
COATING OF
METAL OVER
POLYESTER.
2 Dimensional
stability
LESS HIGH LESS HIGH HIGH
3 TEMPERAT
URE
AFFECTED LESS
AFFECTED
AFFECTED NOT
AFFECTED
NOT
AFFECTED