Magnetite for Toner
Toner is powdery material used for copy machine, beam printer and fax machine
and it is exhausted material to be printed and adhered to paper. Magnetite for
toner is one of the core ingredients for toner which is black crystalline particle
with resin. Its average radius is 0.2~0.3㎛. It requires highly careful quality
control as a critical factor that determines toner?s main attributes such as
clearness, consumed quantity and efficiency of copying.
Saehan Media Co., Ltd started development of magnetite for toner in 2000 based
on composition technology of Iron Oxide for audio, video tape and quality system.
It succeeded in commercializing magnetite for toner in 2001 and now is extending
sales in the world diversifying products of magnetite for toner.
Magnetite for video tape
|
SMT-01S
|
SMT-01S is used to produce toner for laser
printer.
It generates high resolution due to its low coercive force and even magnetism
distribution. |
|
|
|
ITEMS
|
UNIT
|
DATA
|
|
Hc (Coercivity)
|
Oe
|
60
|
|
σs(Saturated Magnetization)
|
emu/g
|
85
|
|
σr (Remained Magnetization)
|
emu/g
|
5.0
|
|
AD (Apparent Density)
|
g/ml
|
0.75
|
|
OA (Oil Absorption)
|
ml/20g
|
2.72
|
|
pH
|
ml/g
|
6.0
|
|
BET (Specific Surface)
|
m2/g
|
8.5
|
|
Aver. Size
|
μm
|
0.3
|
|
SMT-2000
|
SMT-2000 has cubic type particles and is called
mid-coercive force magnetic body. |
|
|
|
ITEMS
|
UNIT
|
DATA
|
|
Hc (Coercivity)
|
Oe
|
100
|
|
σs(Saturated Magnetization)
|
emu/g
|
88
|
|
σr (Remained Magnetization)
|
emu/g
|
9.4
|
|
AD (Apparent Density)
|
g/ml
|
0.5
|
|
OA (Oil Absorption)
|
ml/20g
|
2.72
|
|
pH
|
-
|
8.0
|
|
BET (Specific Surface)
|
m2/g
|
4.7
|
|
Aver. Size
|
μm
|
0.3
|
|
SMT-02H
|
SMT-02H is high coercive force magnetic body
and it is used to produce toner for printers which is 50ppm and faster.
High coercive force allows toner to be developed stably even under magnetic
brush spinning fast and sensitized drum. |
|
|
|
ITEMS
|
UNIT
|
DATA
|
|
Hc (Coercivity)
|
Oe
|
125
|
|
σs(Saturated Magnetization)
|
emu/g
|
86
|
|
σr (Remained Magnetization)
|
emu/g
|
12.5
|
|
AD (Apparent Density)
|
g/ml
|
0.5
|
|
OA (Oil Absorption)
|
ml/20g
|
5.2
|
|
pH
|
-
|
8.0
|
|
BET (Specific Surface)
|
m2/g
|
8.0
|
|
Aver. Size
|
μm
|
0.24
|
Bag Specification of Magnetite for Toner
|
Type of Bag |
Weight per Bag |
Bags/pallet |
pallet/20ft |
weight/20ft |
CBM |
|
Paper bag |
25 kgs |
60 |
10 |
15 tons |
22.39m3 |
|
Jumbo bag |
500 kgs |
2 |
10 |
10 tons |
20.57m3 |
|