Compatible with anionic, cationic and nonionic products and
preparation / bleaching chemicals.

Due to its powerful detergent activity and low foam property Finocon LF New advantageously replaces conventional scouring surfactants employed in batchwise and continuous preparation processes. Finocon LF New allows significant improvement in productivity. It is particularly useful in single-stage combined desize/scour/bleach operations for woven and knitted fabrics, terry-towelling and yarn packages.

On polyester –based fabrics, removal of synthetic sizing agents (especially acrylates which are used to facilitate the weaving operation on water-jet looms) pose a major problem. Finocon LF New expeditiously cleans out such polymers in short treatment times.

Technical notes on application

Amount required

Removal of grease, oil metal amnd graphite-containing impurities

Stain removal

Impurities with a high grease or oil contents should be treated locally before scouring with either undiluted Finocon EWN or a 1:1-1.5 aqueous solution. If metallic impurities and salts that cause hard water are present. It is advisable to add a suitable chelating agent. After stain removal the goods are scoured with an addition of 1.5-2% Finocon EWN

It is more economical to treat long yardages of badly soiled piece goods whatever the type of of fibre yan impregnating process.

Pad the goods with 20-40 g/l
Finocon EWN
After batching for 12-24 h the impurities can be washed out adding a detergent.

Woven and knitted goods and curtains containing metallic impurities

Liquor ratio 1: 25

0.5-1 g/l Finocon EWN
0.2-3 g/l oxalic acid
0.1-2 g/l chelating agent

30-45 min at 50-70ºC
Rinse
Neutralise

Pre-setting:

When pre-setting grease goods in the kier or continuous crabbing machine 0.5-1g/l Finocon EWN prevents caking of lubricants sizes and other impurities.
PES/WO goods (lose stock, tops yarn) that have been prescoured with Finocon EWN

Yarn scouring :

Yarn is scoured at 45-80ºC with 0.25-3 g/l Finocon EWN depending on the material, type of yarn, equipment and pH.

Removal of Lubricants that are difficult to wash out

Depending on the melting point of paraffin products and waxes, treatement temperatures of 70-90ºC may be necessary to remove such products from knit goods.

Amount required
Liquor ratio 1:5 - 1:25
0.5-1 g/l Finocon EWN

Impregnating process:

2-4 g/l Finocon EWN

Winch Beck
Liquor ratio 1: 20 – 1:40
0.25-0.5g/l soda ash
15-20 min at 98ºC

Jig
Liquor ratio 1:4 – 1:6
2-1 g/l Finocon EWN
0.01-0.2 g/l soda ash
15-20 min at 98ºC

Continuous open-width washer:

2.0-1 g/l Finocon EWN
1.5-2 g/l soda ash
Application at 98ºC
An addition of alkali improves washing off of the starch that has been decomposed.

Polyester:

Woven and knitted, textured and untextured and curtains Depending on their type lubricants may be removed more easily with an addition of alkali e.g. 1-2 g/l soda ash elevated scouring temperatures are required of relaxation of textured articles

Liquor ratio 1:25 – 1:40
0.5-1 g/l Finocon EWN
30 min at 40-60ºC

Continuous open-width washer :
1.5-2 g/l Finocon EWN
Temperature 70-80ºC

Beam Dyeing Process unit or jig
Liquor ratio 1:5 - 1:10
1.5 -2 .5 g/l Finocon EWN
30 min at 70-80ºC

Polyamide

Woven and knitted goods ,hosiery and yarn
Scouring is generally improved by adding
Soda ash (1-2 g/l) or caustic soda
38 Be (0.5-1 m/L)

Scouring

Winch Beck/paddle
Liquor ratio 1:3— 1:40
0.25 -0.5 g/l Finocon EWN

Material that has not been heat-set
15-30 min at 30-40ºC

Heat-set Material
15-30 min at 60-80ºC

Woven goods on the jig
Liquor ratio 1:4-1:6
1-1.5 Finocon EWN
2-3 passed at 60-80ºC