Antistatic Finish Final

download Antistatic Finish Final

of 7

Transcript of Antistatic Finish Final

  • 7/28/2019 Antistatic Finish Final

    1/7

    Hydrostat liq &

    Hydrostat BM liq

    Greatmagicians

    for Static

    ChargeDissipation

  • 7/28/2019 Antistatic Finish Final

    2/7

    Figure - 3 Triboelectric Series

    NEGATIVE

    POSITIVEASBESTOS

    GLASS

    HUMAN HAIR

    NYLON

    WOOL

    VISCOSE

    NYLON 6,6

    FURSILK

    LEAD

    ALUMINIUM

    PAPER

    COTTON

    STEEL

    SEALING WAX

    HARD RUBBERACETATENICKEL

    COPPER

    BRASS

    SILVER

    SYNTHETIC RUBBER

    POLYESTER

    ACRYLIC

    LEATHER

    PVCPOLYPROPYLENE

    TEFLON

    SILICONE RUBBER

    RULE - I

    The further apart the two materials are in the series the more easily static

    is generated.

    RULE - II

    The material on top is positive with respect to the material below it,

    which is negative.

    Log10 of fibre surface resistivity

  • 7/28/2019 Antistatic Finish Final

    3/7

    Log10 of fibre surface resistivity

  • 7/28/2019 Antistatic Finish Final

    4/7

    HYDROSTATBM LIQUID Nonionic polymeric product

    Coats the fibre and hence produces fluffiness in the fabric

    Reduces friction

    Lowers attraction between fibres and also reduces dust attraction.

    In case of fluff forming operations like Bio-polishing and bath mattreatments, reduces the fluff accumulation on the fabric surface. Thecoating aids dispersion and colloidal suspension of the fluff.

    Hydrostat BM Liquid when used along with Zycol Floc Liquid in subsequentwashing after enzyme treatment, enhances quick flocculation ensuringcomplete fluff removal.

    Application Method

    Padding HydrostatBM Liquid 5 - 20 gms/lit

    Pad with 70% pick-up and dry at 180C for 45 secs.

    Exhaust Hydrostat BM Liquid 1.0 - 3.0 %

    Treat at 50 - 70 C and pH 5.5 6.0 for 20 - 30 mins.

  • 7/28/2019 Antistatic Finish Final

    5/7

    ANTI-STATIC EFFECT

    By definition, static is a relativelyimmobile electric charge on a surfaceand commonly known as electrostaticcharge In a fiber-finish-guide surface

    system, three factors can be seen ascontrolling factors in generation of suchcharges. These are

    Charge transfer during surface contact

    Charge leakage across gap

    Charge flow along the surface

    The speed of electrostatic chargedissipation from the surface of polyesterfiber has been characterised forHydrostat BM.

    Static Honestometer

  • 7/28/2019 Antistatic Finish Final

    6/7

    STATIC CHARGE ESTIMATION RESULTSASTM D 4238 -95

    Dosages of

    Hydrostat BM Liq

    Untreated 1 % 2 % 3 %

    Total charge

    developed (volts)

    2300 420 250 10

    Half decay time

    (seconds)

    >200 10 5.6 0.1

    Instrument: Static Honestometer

    Charging volts : 10 KV

    Sample Distance : 15mm

    Relative Humidity : 45 5%

    Temperature : 27 2oC

  • 7/28/2019 Antistatic Finish Final

    7/7

    Application

    EXHAUST METHOD

    POLYESTER YARN

    Hydrostat BM Liquid 1.0 - 3.0 %

    Adjust pH 5 5.5, treat at 40- 60C for 20-30 mins., dry

    EXHAUST METHOD POLYESTER YARN

    Hydrostat Liquid 1.0 - 2.0 %

    Lubril HDR Paste 0.5- 2.0 %

    Adjust pH 5 5.5, treat at 40- 60C for 20-30 mins., dry