Home Cosmetic Science Talk Formulating General Laundry strips (I think they’re green-washing)

  • Laundry strips (I think they’re green-washing)

    Posted by Margaret on December 23, 2023 at 3:22 pm

    Thanks for any help you can provide me in my quest to test a product I think is bogus!

    I want to do a comparison wash.

    I have been soaking a large piece of scrap fabric in coffee & soil. When the 1 week of soaking with daily mixing are up, I’ll dry the fabric then cut it into equal sizes for the test washes. I will use the same mass of laundry powder as the estimated mass of surfactants in the laundry strip. THIS IS WHAT I NEED HELP WITH…

    This is what I’ll have for my samples:

    1) CONTROL PIECE: UNwashed piece of dirty fabric

    2) a piece of fabric washed in cold water

    3) a piece of fabric washed in cold water and a laundry strip

    4) a piece of fabric washed in cold water using laundry detergent powder (equal in mass to the actual surfactants in the laundry strip)

    What do you think is the TOTAL % of surfactants in the laundry strip? Here is the list of ingredients, from their website (Tru Earth):

    CORN STARCH

    POLYVINYL ALCOHOL

    GLYCERIN

    SODIUM C14-C16 OLEFIN SULFONATE

    AQUA

    GLYCERYL COCOATE

    COCAMIDOPROPYLBETAINE

    CAPRYL GLUCOSIDE

    SODIUM GLUCONATE

    PARAFINUM LIQUIDUM

    POTASSIUM SORBATE

    LAURYL GLUCOSIDE

    C10-16 OLEFIN

    SODIUM CHLORIDE

    SODIUM SULFATE

    PhilGeis replied 4 months, 1 week ago 3 Members · 5 Replies
  • 5 Replies
  • Elliot

    Member
    December 23, 2023 at 8:42 pm

    <div>Have you tried weighing one and wetting it out to remove the surfs, then drying & weighing it?
    </div><div>

    The PVA coating on the dishwasher detergent pods I use doesn’t dissolve fast or completely, I cut them open & dispose of it or it clogs the drain.

    I’ve been wondering if that happens in people’s laundry with those strips.

    </div>

    • PhilGeis

      Member
      December 24, 2023 at 8:35 am

      What brand is that?

    • Margaret

      Member
      December 24, 2023 at 10:02 am

      I was given 2 of the strips, so I don’t want to risk losing one by trying your suggestion, though it’s a good one. Sorry!.

      The Tru Earth website shows the strip quickly dissolving when placed in a bowl of water, so it might not be a problem with anything gumming up like your dishwasher pods.

      I have heard the SAME THING about pods being a problem, i.e., NOT dissolving. I was dishes by hand & use laundry powder so I can’t comment on the pods problem myself.

  • Elliot

    Member
    December 24, 2023 at 11:00 am

    The brand is Full Circle Market. The detergent itself works quite well, and is unscented/no enzymes, (which make me itch), so I’m happy to use it, but do have to “peel” the pods.

    • PhilGeis

      Member
      December 28, 2023 at 7:14 am

      Maybe tell them Elliot. I know P&G would want to know if it was a problem with Tide pods

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