Logo wfk - Testgewebe GmbH

Greying Tests

Ballast soil for redeposition/greying tests

„ Soil makes a difference! “

What is true for stain removal testing is even more true for assessing soil redeposition or rather: whiteness maintenance performance. Existing ballast soil systems with total soil quantities as for single wash tests may be used for such testing, but appear to require too many wash cycles to obtain significant results. An ideal redeposition test system replicates‚ ’real’ greying levels with less wash cycles:
„Accelerate don’t exaggerate!“

For some time now, the detergent industry has been searching for a greying test system that can be used to evaluate greying and whiteness maintenance effects within just a few wash cycles. To find the right solution was a challenge but in cooperation and with the expertise of the member companies of the wfk group we developed some greying donor products.

  • Placeholder

    wfk GBS 2020

    Greying Ballast soil wfk GBS 2020 (light greying level, comparable with wash and wear tests), 100% cotton, 24 swatches/pack.

    Simple test with A.I.S.E. standard load, whiteness tracers and wfk GBS 2020, which in just as few as 3 washes, mimics the whiteness performance observed in wash & wear tests.

    SKU: 10998

  • Placeholder

    wfk Greying swatch-2023

    Greying Ballast soil wfk Greying Swatch-2023 (strong greying level for good differentiation after a few wash cycles), 100% cotton swatch in a sock, sales unit: 1 piece.

    Simple test with A.I.S.E. standard load, whiteness tracers and wfk greying swatch-2023, which in just as few as 4 to 6 washes (to be confirmed/under development), mimics the whiteness performance.

    SKU: 10991-2023

 

The A.I.S.E. working group recommends using a combination of one wfk product and one CFT product for good results after only 5 wash cycles: Flyer

  • Placeholder

    AISE/IKW new greying Set

    CFT-Greying Sock/wfk Greying Swatch-2023, pack of 10 Sets

    SKU: AISE/IKW-new-greying

    385,00