Commercial nitrocellulose is generally damped with alcohol or water to prevent the danger of
           fire accident. These damping materials, however, act as obstacles for nitrocellulose to be applied
           in urethane resin based formulation due to their incompatiblity. Nitrocellulose can gives necessary
           hardness, drying speed, and excellent dispersibility to the soft urethane formulation and when it
           is successfully applied by removing alcohol and/or water, a wide range of application becomes
           possible, e.g. coating material for high-performance magnetic tape.

           Magnetic tapes are made by applying a coating material containing magnetic iron powder to a
           polyester film substrate. Extremely fast drying speed and highly uniform dispersion of the powder
           are very essential for its process. Our alcohol free nitrocellulose chip HC/HM series can meet these
           requirements and is recognized as the best binder for high-perfomance magnetic tapes.

           This property of alcohol free and extremely low in water content also allows SwanCel a various
           application to the urethane based industry and expands its demands constantly.





Designation
Volatile
content
Wetting agent
Moisture
content
Remarks
Anone*
Toluene
HC - 1/16
30 2%
17.0
~
26.0
5.0
~
10.0
1.0% or less
Audio tape coating /
Video tape back coating
HC - 1/4
HC - 1/2
HC - 1

           * Anone : Cyclohexanone





Designation
Volatile
content
Wetting agent
Moisture
content
Remarks
MIBK*
Toluene
HM - 1/32
30 2%
4.0

~

12.0
16.0

~

26.0
1.0% or less
Higher dry speed
than Anone type
HM - 1/16
HM - 1/4
HM - 1/2
HM - 1

           * MIBK : Methyl isobutyl ketone