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Cyanotype printed bag , is it safe for swallow, lick the cotton

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Hello there , We printed our acetate negatives on to bags with cyanotype and I want to ask you is it hundred percent safe to use these bags after washing , if we swallow , lick or put food in it ?
 
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loccdor

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How about sewing an inner synthetic/waterproof liner for the bag to separate the food from the chemicals? You could use a material like Mylar which would help keep food warm as well.
 

mcfitz

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Andrew I suspect it's a problem of non-English origin of the question.

I think the question pertains to using cyanotype printed bags for food storage first of all, then by extension, eating what is stored in them.

Just a hunch on my part, as I believe the OP has made it clear several times he makes a great effort to ask questions in English, which is not his mother tongue.
 

Dan Fromm

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Andrew I suspect it's a problem of non-English origin of the question.

I think the question pertains to using cyanotype printed bags for food storage first of all, then by extension, eating what is stored in them.

Just a hunch on my part, as I believe the OP has made it clear several times he makes a great effort to ask questions in English, which is not his mother tongue.
Y'know, there are several free translation packages that claim to be able to translate Turkish to English and English to Turkish.. For example, https://www.deepl.com/en/translator and https://translate.google.com/

I don't know Turkish, so can't report on how well either package handles it. I've used both to get material from Dutch and German to English, now use Google Translate. It used to be terrible, is much better now. I use both to check my translations from French and Spanish to English. Most on topics with specialized vocabularies (think poorly documented regional dialects), neither package has worked consistently well for me.
 

bdial

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As a medical grade chemical, prussian blue has some medical uses, but that doesn’t make it safe outside of that context.
Using the bag to transport packaged food is probably ok, and other dry foods that will be washed, or have a skin that will be discarded before eating are likely ok. Otherwise it’s probably best to avoid direct contact with food items.

Here is one article i found with google, https://biologyinsights.com/is-prussian-blue-toxic-its-safety-as-a-pigment-and-medicine/
 
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