AVCO-CATALYST PMC

CATALYST FOR RESIN FINISHING OF CELLULOSIC FABRICS

AVCO-CATALYST PMC is a catalyst used in resin finishing with DMDHEU and DMI resins.
The use of AVCO-CATALYST PMC enables lower curing temperatures or shorter fixation times than with usual catalysts.

SPECIFICATIONS:

Appearance Clear, colorless liquid
Chemical nature Aqueous solution containing organic and inorganic acid donors.
Density (g/cc) 1.20 – 1.25
Solubility Soluble in water at any ratio.
pH (10% sol.) 7 – 8
Compatibility 1. Is not compatible with alkaline products.

2. Is not compatible with phosphate and carbonate salts.

Storage stability When stored in closed original packages, shelf life is at least 12 months

PROPERTIES & USES:

1. Catalyst for glyoxal (DMDHEU) resins as well as for non-formaldehyde resins (DMI)

2. High buffering capacity at pH range of 5 – 6

3. Non–volatile preparation. Does not cause any corrosion to the stenter-frame or to other finishing ranges.

4. Liquid product can be dosed with automatic dosing machines.

5. Non-foaming at all.

6. Non-flammable and non-toxic, with very low irritating effect due to the very mild acidity.

7. Non-corrosive to fibers sensitive to mineral acids.

8. Can be used with non-ionic and cationic softeners and other finishing agents.

APPLICATION:

Add AVCO-CATALYST PMC to the resin finishing bath as the final component.

The recommended dosages the following:

Apply 50- 60% on the amount of DMDHEU type resins (AVCO-REZ ECO-CONC).

Apply 40% on the amount of non-formaldehyde resins of the DMI type (AVCO-REZ ZFF).

Finishing recipes:

1. Finishing recipe for 100% cotton with low content of free formaldehyde (<75 ppm)

AVCO-REZ ECO CONC 30 – 60 g/l

AVCO-SOFT PE 20 – 30 g/l

AVCO-ELASTOGUN MEC 20 – 30 g/l

AVCO-SOFT NIC 20 – 30 g/l

AVCO-CATALYST PMC 18 – 36 g/l

Pad, dry and cure at 150°C for 3 minutes.

It is possible to apply a fast curing process on dried fabrics:

I. Cure at 170°C for 45 seconds

II. Cure at 180°C for 30 seconds

 

2. Finishing recipe for 100% cotton with zero free formaldehyde

AVCO-REZ ZFF 80 – 160 g/l

AVCO-SOFT PE 20 – 40 g/l

AVCO-SUPERFINISH SNI 20 – 40 g/l

AVCO-CATALYST PMC 32 – 64 g/l

Pad, dry and cure in one step at 150°C for 3 minutes.

It is possible to apply a fast curing process on padded and pre-dried fabrics:

I. Cure at 150°C for 90 seconds.

II. Cure at 160°C for 60 seconds.

III. Cure at 170°C for 30 seconds.

Remark:

Fast curing processes at elevated temperatures depends on machine type, efficiency of

heat transfer in the oven compartments and on the type of fabrics processed

sensitivity to yellowing etc.