Why would you call something “plant based” when it uses a lot of plastic which after short time degrades and exposes it to the environment?

    • zarkanian@sh.itjust.works
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      2 hours ago

      I think everything labeled “plant butter” is vegan, whereas “margarine” can contain both plant and animal fats. I don’t think that’s regulated, but I think that’s how those terms are used in practice. I always check the labels just to be sure, of course.

  • BenchpressMuyDebil@szmer.info
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    5 hours ago

    Yeah I’ve had it with Will’s Vegan Shoes. They use https://www.viridis-leather.it/faq.html and say it’s “bio-based leather” but if you go to the link:

    Is it recycled, recyclable or biodegradable?

    No, it’s not but it expresses its sustainable content because it’s mainly produced using by-products from corn and wheat instead of petrolium based products. Bio polyols always available as renewable resources.

    Which type of PU is Viridis® made of?

    43 % of PU made using polyols coming from corn and wheat, 31 % of normal PU.

  • Luccus@feddit.org
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    5 hours ago

    YSK: Cellulose can be made extremely durable and water resistent. The wallet I’ve been using for a decade now is made of cellulose. The stitching was kinda bad from the start, so I’ve had to repair it once. But the material itself is still holding stong. And it feels nice and is very grippy.

    • Paragone@lemmy.world
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      4 hours ago

      “TreeLeather” or something like that, was 1 brand of the cellulose “leather” stuff…

      _ /\ _

  • Pipster@lemmy.blahaj.zone
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    6 hours ago

    I do hobby-level leatherworking and I’m all here for real non-animal leathers but yeah, basically all of them, cactus, mango, pineapple leaf etc. all just get put on a PU backing…

    I got excited for cork leather at one point but turns out that is also either PU backed or fabric backed (which is better but doesn’t really work as a direct replacement for leather, especially structurally).

    There are a few I’m more excited for and I would love to get hold of but they still seem either experimental or used directly by the makers for their own finished products. Most are fungus based, so one is SCOBY leather, basically the big blob of microorganisms used to make kombucha can be grown in big flat sheets, dried and treated to make a leathery material but I’ve not seen many applications of it yet…

    But mushroom/mycelial leather is the one I’m most hopeful for. Not only do some of them look like real leather but the random ‘grain’ of the mycelium has the potential to ape the natural fibrous grain of leather that gives it its strength. That is the one I’m really excited for.

  • GarboDog@lemmy.world
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    9 hours ago

    No hate, but leather and pb leather is gross to us idk how people like it. The texture is eugh

  • Tattorack@lemmy.world
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    9 hours ago

    But… Isn’t actual leather plant based?

    Cow eats grass. Cow grows from eating grass. Cow ded. Make leather from cow.

    From grass to cow to leather. Leather is made of grass. Leather is plant based.

  • Treczoks@lemmy.world
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    11 hours ago

    Because it is made from plant based materials? Like some LEGO parts are nowadays made from plant based materials.

    Plants -> Ethanol -> Plastic

    • barnacul@lemmy.world
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      7 hours ago

      Polyurethane is made by (among other steps) mixing paint thinner and phosgene gas. It’s a nasty dangerous process.

      The only time plants are involved is when they mix in some fiber pulp at the end.

      Plant based plastics exist, but they are not polyurethane.

      • la508@lemmy.world
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        6 hours ago

        I can’t stress enough how much heavy lifting the phrase “among other steps” is doing here.

  • ZoDoneRightNow@kbin.earth
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    11 hours ago

    I would assume that if polyurethane is marketed as plant based it would actually need to be made from vegetable oils instead of fossil fuels no? Would be false advertising otherwise

  • Spacenut@lemmy.world
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    19 hours ago

    I don’t really understand all the hate/cynicism towards vegan leather. Like yeah obviously plastic is bad for the environment, but raising cows and dumping thousands of tons of chromium into rural waterways for the tanning process aren’t good either. Leather is actually far worse for the environment by some metrics.

    Plus there’s the fact that most leather is sealed with plastic/acrylic to increase its longevity anyway, unless you’re buying something wicked expensive.

        • Paragone@lemmy.world
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          4 hours ago

          Chromium-based tanning is only 1 kind of tanning, but yeah, chromium’s one of those chemicals which needs to be limited more-carefully, among our ecologies.

          Vegetable-based tanning also exists, & I’m no expert, so there could be multiple way I don’t know about.

          _ /\ _

    • 𝕱𝖎𝖗𝖊𝖜𝖎𝖙𝖈𝖍@lemmy.world
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      16 hours ago

      And it’s fucking terrible compared to real leather. It’ll start flaking or cracking after a year, it’s fucking dangerous around fire, it offers no fucking insulation or protection, it’s shit.

      A lot of novice fire performers will grab it thinking it’s the same as real leather, and we always have to pull them aside and give em a talk

      • Mirror Giraffe@piefed.social
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        4 hours ago

        I had a pair of boots that I used 9 months a year in Swedish climate for roughly 10 years without a hitch. They also went for hikes in Costa Rica and across India and Nepal. At the end they looked worn but were still functional as I swapped them out for another pair of vegan leather boots.

        I’ve had other vegan shoes that lasted a lot shorter but that can be said about my animal skin shoes as well.

        Modern bio-leather causes about 10% off the emissions leather does and doesn’t have the same tanning process which is extremely toxic.

        Not saying that vegan is strictly better, but rumours of it’s crappiness are severely out of date.

    • OrteilGenou@lemmy.world
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      19 hours ago

      Technically if they are organic matter compressed over eons into polycarbons, they’re still dinosaurs, so not vegan