Nestogen - AST | Hydrophilic Soil Release / Antistatic Agent

• Product Information

  Nestogen - AST is a hydrophilic polymer that can be applied on polyester fibre or fabric during processing.

   

• Key Features & Benefits

   

  Nestogen - AST when applied on polyester forms a durable polymer film that interacts readily with water imparting a hydrophilic finish. This polymer absorbs moisture from the atmosphere that does not allow static charges to build up on the polyester. This durable treatment imparts the following properties:

  • Inhibits formation of Static charge
  • Enhances wearer comfort drastically
  • Improves wetting action of polyester
  • SOIL RELEASE effect: This Makes polyester extremely easy to clean by releasing oil based stains and soils and preventing deposition of stains.

• Application

  A. By Exhaust (Yarn, Fabric & Garment)

  Set bath at 40 °C & pH: 5 - 6 with acetic acid.

  Add Nestogen - AST : 3-4% owf.

  Raise temperature to 60-80° C & run for 20-30 minutes.

  Dry the yarn/fabric/garment below 150° C.

   

  B. HPHT Dyeing (Yarn & Fabric)

  The preferred method of applying the product is during high-temperature dyeing with virtually no change in normal dyeing procedure.

  Set bath at 40° C & pH: 5-6 with acetic acid.

  Add Nestogen - AST  : 3-4% owf.

  Raise temperature to 60–65 °C.

  Add disperse dye stuff before reaching 80 °C.

  Keep the temperature at 80° C for 10-15 min for good exhaustion.

  Continue with the usual dyeing process.

  When dyeing heavy shades, raise temperature to 60° C and hold for 45 minutes, add dyestuffs, and continue with the usual dyeing process.

   

  Application Notes:

  Avoid drying temperature above 176 °C.

  Avoid bath pH >8.0.

  Avoid adding Nestogen - AST Copolymer after electrolytes or resins are in the mixing tank.

   

   

• Advantage

  Nestogen - AST Copolymer is a durable textile finish softener for polyester yarns and fabrics. It imparts soil-release, lubricity, antistatic properties and increased moisture absorbency to polyester fabrics.

  It is particularly effective on knit fabrics made from polyester yarns.

   

• Properties

  Type                              : Nonionic

  Chemical Nature           : Hydrophilic Polymer

  Appearance                  : Liquid, White dispersion

  pH                                 : Approx 6.5

  Solubility                       : Cold water dilutable in any ratio

  Compatibility                 : Stable to anionic, cationic, and nonionic additives

  Storage                         : Stable under normal conditions

   

• other Information

  There are two ways of imparting an antistatic finish. One method is to incorporate an antistat in melt spinning itself to produce a wash fast effect and the second method is to apply an antistatic agent during finishing. The second method is more commonly used.

   

  Antistatic agents mainly work by dissipating charge built up on the fabric. This effect is not a permanent one and results in reduced effectiveness over a period of time.

   

  Hydrophilicization of polyester is a more long-term solution to eliminating these inherent problems of polyester as it not only dissipates static charges but prevents them from forming in the surface in the first place.

   

  It also increases the wetting area by promoting a wicking action on surface. This imparts a SOIL RELEASE effect that counteracts the oil loving nature of polyester and prevents stain deposition. It also increases the contact angle between water and polyester allowing soils and stains to be released from the fibre surface.