Unisil – SI

Technical Data Sheet

Product Description

Unisil – Slis a non-ionic polyethelene and silicone compound for a wide range of textile fabrics particularly cotton, polyester other synthetic fibers and their blends. It is a APEO/NPEO free product and conforms to Oeko-tex compliance.

How to Apply

The concentration of Unisil – Si in the finishing bath will depend on the degree of desired softness and type of fabrics. In most cases 10-30 g/l is used in the padding liquor, while 1-3% o.w.f. ratio can be also used by exhaustion on winches. jiggers and for sewing threads on yarn dyeing machine.

Features and Benefits

  • Improves sewability.
  • Provides soil resistance & crease recovery properties to the fabrics.
  • Increases the drape of the fabric.
  • ImprovesPermanent soft handle and smooth surface.
  • Provides luster to the fabric.
  • Is non-yellowing and does not change the shade on application.
  • Improves sanforising results.
  • Can influence the rubbing fastness of napthol & disperse dyed and printed fabric positively.

Physical Properties

Appearance :Milky White Emulsion Ionic character:Non-ionic pH 5.0-6.0


Unisil-SI may be applied alone or mixed with other finishing agents on padding or by exhaustion methods, on woven and knitted fabrics.

Precautions when in use

1. Ensure that the Unisil-Si solution is completely homogenous before using.
2. Clean inside of pad bath or exhaustion bath before applying this softener and keep the mangle clean during the process.

Storage and Handling

To ensure that the product quality is maintained, the container should be tightly sealed when not in use. Store at normal temperature and prevent prolonged exposure to extreme heat or freezing conditions, which may cause product separation. If separation does occur (thaw if frozen), stir the contents and use in the normal manner.

Product Safety

When considering the use of any UCI products in a particular application, review our latest Material Safety Data Sheets and ensure that the use you intend can be accomplished safely. For Material Safety Data Sheets and other product safety information, contact the UCI Sales Office nearest you. Before handling any other products mentioned in the text, you should obtain relevant product safety information and take necessary steps to ensure safety of use.

Garment washing process

Dosage 0.2-1.0% on the weight of fabric Liquor Ratio 1/10-1/20 Temperature Room temperature Time15-30 mins Drying 100-130°C

For Wrinkle free or easy care finish

20-50 g/l Unisil-SI 50-70 g/IUNIFIX-LFG 15-30 g/1 MAGNASOFT-1456 or NANOSIL-2459 or MAGNASOFT-1489

Exhaustion Process

Dosage 1-3% on the weight of fabric Liquor Ratio 1/10-1/20 Temp. Room temperature Time 15-30 mins Drying 100-130°C


20-50 g/l improves sewability @ 70-90% pick up 15-30 g/l improves abrasion resistance & tear strength of woven fabrics.