TEXTILE
FINISHING RESINS Resins used for textile finishing
are
nitrogen bearing chemicals such as urea-formaldehyde and melamine-formaldehyde.
They impart to the fabric such properties as crease resistance, dimensional
stability, firm handle, etc.
TYPE
APPLICATIONS/CHARACTERISTICS
DMEU
Provides crease resistance and firm handle to the fabric
Urea Formaldehyde
Provides crease resistance and shrinkage control on cotton,
rayon and polyester/cotton blend
Melamine Formaldehyde
Finishes for polyester, polyester/cotton, polyester/rayon
blends, controls shrinkage.
PAPER RESINS
RI Chem offers a cationic urea
resin which is added to the pulp system prior to sheet formation to improve
the dry and wet strengths of the paper. Sizing efficiency is also
improved. Thus wet breaks are greatly reduced. RI Chem also
offers a melamine-formaldehyde resin for improving the wet strength of
paper.
TYPE
APPLICATIONS
Cationic UF
Provides wet strength to paper
MF
Provides wet strength to paper
FOUNDRY RESINS
RI Chem's products for foundry
are the powder and liquid novolac and the furan type resins. The
powder novolac is used to provide tensile strength while the liquid novolac
is used in the cold and hot coating of sand in the manufacture of shell
molds and cores. The furan type resin, intended for large core or
mold production, is acid-catalyzed at ambient temperature.
TYPE
APPLICATIONS
Phenol-Formaldehyde
Cold and hot-air sand coating for shell core
Furan Resin
Acid-curing, no-bake binder for core/mold application
