AVCO – CATALYST SIDP

SPECIAL CATALYST TO REMOVE SILICONE DEPOSITS AND STAINS
AVCO-CATALYST SIDP is a special depolymerization catalyst with excellent dispersing properties toward crosslinked or linear polysilixane polymers. The catalyst is decomposing the polymer back- bone to smaller entities, which can be dispersed in water and removed from the substrate.

SPECIFICATION:

Appearance Yellowish viscous liquid.
Chemical nature Blend of ammonium quaternary derivative and surfactants.
Compatibility Is not compatible with anionic products.
Density 1.0 g/cc
Ionicity Cationic / nonionic
pH (10% sol.) 5 – 6
Solubility Soluble in water.
Storage
  1. Keep in cool place, do not store in direct sun.
  2. Keep container tightly closed.
Viscosity 2000 – 2500 mPa.s

PROPERTIES & USES:

  1. AVCO-CATALYST SIDP is decomposing and dispersing all kinds of poly-siloxane
    polymers used in textile finishing processes, such as amino modified silicone
    softeners and Spandex lubricants.
  2. The product removes un-wanted silicones from treated textiles and from textile
    dyeing and finishing machines.
  3. Suitable for removing silicone contamination from all types of natural and
    synthetics fibres such as cotton, viscose, polyester and polyacrylics.
  4. Enable re-dyeing of textiles treated with silicone finishes.
  5. Suitable for removing silicone deposits from dyeing and finishing machine parts.
  6. AVCO-CATALYST SIDP treatment can be applied as a preventative routine for keeping
    the dyeing machines free from silicone polymer deposits.
  7. Use of AVCO-CATALYST SIDP for removing silicone spots from dyed fibres should be
    pre-checked in the lab before application, some dyes are sensitive to the product
    due to its cationic nature, and the alkaline conditions needed for the process.

APPLICATION:

  1. AVCO-CATALYST SIDP is used for stripping silicone polymers from textile fabrics and-textile machines under hot alkaline conditions.
  2. Use of high temperatures will reduce duration of the treatment.
  3. The process has some influence on the shades of dyed fabrics. Check in the lab before use the stripping-off of the silicone contamination and the redying possibilities after it.
Following are some examples for using the product:
  • Stripping silicone contamination from cotton knit goods.
    1. Load fabric into jet dyeing machine at liquor ratio of 1:10 up to 1:15.
    2. Use the following recipe:
      AVCO-CATALYST SIDP -3 – 10% o.w.g
      Caustic – soda (50%) -1 – 3 cc/l
    3. Raise temperature to 85 – 90°C and treat for 60 minutes.
    4. Rinse with water.
    5. Acidify with 1 – 1.5 g/l acetic acid (60%).
    6. Overflow and rinse well.
    7. Re-dye the fabric to a darker shade.
  • Cleaning silicone deposits from jet dyeing machines.
    1. Fill machine with water.
    2. Apply the following recipe:
      AVCO-CATALYST SIDP -3 – 5 g/l
      Caustic – soda (50%) -2 – 4 g/l
    3. Treat at 85 – 90°C for 30 minutes neutralize with acetic acid.
    4. Drop liquor and rinse with cold water.