Ben, not that I'm truly concerned about the health aspects of ink or cement in papercrete,
I thought for accuracy I would reply to your post by quoting the Printer's National Fact
Sheet found at: http://www.pneac.org/sheets/litho/inks.cfm
"Soy- and vegetable-based inks were popular during the oil crisis in the early 1970s. But
as presses became faster, petroleum-based inks displaced slow-drying vegetable-based
inks. Now increased emphasis on improving worker safety and reducing environmental
emissions has sparked renewed interest in vegetable oil-based inks. Pure soy-based inks
cannot be used in the heatset process, however. As a result, soy-based oils still contain a
certain percentage of petroleum. The American Soybean Association (ASA) has developed
a "Soy Seal" certification program. Table 1 summarizes the percentages of soy content
necessary for qualification. Another disadvantage is that soy inks may still contain small
quantities of hazardous substances, and may have to be managed as hazardous waste."
See their website for the referrenced table.
Everything except pure water and oxygen gives you cancer it seems.
--- In papercreters@yahoogroups.com, BEN <bennyboyhou@...> wrote:
>
> As far as the ink is concerned, I was under the impression that most of the ink used
nowadays is made of vegetable products.
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