10 Sep
2015
10 Sep
'15
1:32 p.m.
On Sep 10, 2015, at 2:40 PM, Sean Caron <scaron at
umich.edu> wrote:
I have a few old ... let's just say Hollerith cards ... LOL ... and the
stock feels a little reminiscent of that of a manilla folder or 3x5 card,
but slightly thicker. It's kind of an odd basis weight ... too heavy for
cheap folders, too light for expensive folders ... wouldn't be amenable to
running through a printer due to the rigidity ... so probably very few
applications for that particular grade of paper besides making Hollerith
cards ... I'm not totally surprised it would be hard to find these days.
Wikipedia mentions the thickness spec: 0.007 inches (180 ?m) thick. And it refers to ANSI
and ISO standards that specify the card in more detail, but of course those are the kind
of unfriendly standards that you have to pay for.
Card stock exists in a large number of varieties. It may be perfectly straightforward if
you look in a paper company catalog (the kind that supplies paper to print shops). For
example, with a quick look at Mohawk Paper company I see a dozen different papers.
Picking one of them ("Options") shows a very smooth paper in 13 different
thickness specs from .0036 to .0185 inches -- and .0069 is one of the choices listed.
paul