October 2003
Crosslinker for the formaldehyde-free, easy-care finishing of textiles composed of cellulosic fibers and their blends with synthetic fibers.
Nature
Dimethyldihydroxyethylene urea
Physical Form
Clear, slightly yellowish aqueous liquid
Storage
When stored correctly, in the original, sealed containers at
temperatures between 5
°
C (40
°
F) and 30
°
C (86
°
F), Fixapret
NF has a shelf life of at least 6 months. Once containers have
been opened, the contents should be used up as soon as
possible. Containers should always be closed tightly again after
product has been taken out.
In very seldom cases, the product may crystallize out slightly
during storage at lo w temperatures. However, these crystals
can be redissolved by warming the product up slightly or by
adding water and stirring.
Properties
Solubility
Can be infinitely diluted with cold water
pH
~4.2
Density
Specific gravity ~1.22 (~ 10.2 lbs. per gallon)
Compatibility
Fixapret NF is compatible with most finishing agents. If several
products are to mixed together, it is advisable to conduct
preliminary tests to check their compatibility.
Application
Fields of
application and
finish effects
Easy-care finishing of woven and knitted fabrics composed of
cellulosic fibers and their blends with synthetic fibers
-
Embossed, schreiner and chintz finishes
-
Formaldehyde free
-
Very soft handle
-
Good wash-and-ware effects
-
The finish effects have good fastness to washing and are fast
to dry cleaning.
-
Good stability to hydrolysis
-
Very good stability to chlorine in washing treatments
Fixapret NF is applied by the padding process at room
temperature. The liquor uptake should be around 60-90%,
depending on the type of fabric.
Amounts used
Cotton
40-120 g/l Fixapret NF
Rayon
80-180 g/l Fixapret NF
Polyester/Cotton
30-100 g/l Fixapret NF
Polyester/Rayon
50-150 g/l Fixapret NF
Catalyst
The best finishing effects are obtained with Condensol NAmounts: approximately 30% Catalyst on weight of the resin Recommended Amounts used
Guideline Recipe
Pre-cure
I. Apparel, Knitgoods (Cotton, PES/Cotton)
60 - 120 g/l Fixapret® NF 20 - 36 g/l Condensol N
2 g/l Kieralon® JET B Conc. 15 - 80 g/l Siligen® VN
5 - 10 g/l Siligen® SIN Liquor pickup 70-75%
Dry as usual
Cure according to above curing guidelines
II.Woven Shirting Material (Cotton)
60 - 140 g/l Fixapret® NF 20 - 42 g/l Condensol N
2 g/l Kieralon® JET B Conc. 15 - 80 g/l Siligen® VN
5 - 10 g/l Siligen® SIN Liquor pickup 75%
Dry as usual
Cure according to curing guidelines
III. Blouse Material (Rayon
100 - 80 g/l Fixapret® NF 30 - 55 g/l Condensol N
2 g/l Kieralon® JET B Conc. 15 - 80 g/l Siligen® VN
10 - 20 g/l Siligen® SIN Liquor pickup - 80%
Dry as usual
Guideline Recipe
Post-cure
IV.Apparel, Knitgoods (Cotton, PES/Cotton)
100 - 150 g/l Fixapret® NF 30 - 45 g/l Condensol® N
2 g/l Kieralon® JET B Conc. 15 - 80 g/l Siligen® VN
5 - 10 g/l Siligen® SIN Liquor pickup 60-70%
Dry as usual
Cure 10-15 minutes at 310oF (155°C)
For higher crease
retention
Post-cure
90 - 100 g/l Fixapret® NF 10 - 15 g/l Fixapret® ECO 30 - 35 g/l Condensol N
2 g/l Kieralon® JET B Conc. 15 - 80 g/l Siligen® VN 5 - 10 g/l Siligen® SIN Liquor pickup 60-70% Dry as usual Cure 10-15 minutes at 310oF (155°C)
Additional
Information
To prevent odor formation and obtain optimum finish effects, alkaline material should be adjusted to a slightly acid pH before finishing.
In contrast to catalysts that contain magnesium chloride, no odor formation is likely when Condensol N is used. Any whitening agents used should be stable in the acid pH range.
Safety
When using this product, the information and advice given in our Safety Data Sheet should be observed. Due attention should also be given to the precautions necessary for handling chemicals.
We know of no ill effects that could have resulted from usingFixapret NF for the purpose for which it is intended and from processing it in accordance with current practice.
According to the experience that we have gained over many years and other information at our disposal, Fixapret NF does not exert any harmful effects on health, provided that it is used properly, due attention is given to the precautions necessary for handling chemicals, and the information and advice given in our Material Safety Data Sheet are observed.