2018 Shows Papel Texano at the 2018 Austin Book, Paper & Photo Show
Humor Papel Texano Handmade Paper Laughs at Papermaking
'Cinque 'Cinque Tooth Chalk and Pastel Handmade Paper
advanced work, but need much more...
Gallery Papel Texano Handmade Paper Gallery
Tools Papel Texano Handmade Paper Tools and Toys
the rest still under dust, sorry...
Meanwhile, visit the Etsy Papel Texano page
- Making medieval moulds in the 21st century
- what you wanted to know but didn't dare ask about making paper pulp with a garbage disposal
- Printing and Papermaking Top Press
what you wanted to know but didn't dare ask about making paper pulp with a garbage disposal
I follow another papermaker's lead in calling this contraption based on a kitchen under-the-sink garbage disposal a hydropulper. A few inches in size, a garbage disposal "looks" a bit like a very, very small industrial paper mill hydropulper and "behave" in a rather similar way to these devices that can be the size of a very large room.
The role of an industrial hydropulper is to break apart clumps of cooked cellulose fiber, lignin and other substances, by using strong shear forces produced by water turbulence happening in an enclosure with circulating water between blade-like elements closely fitting inside a sieve. Hydro-shearing, if you were wondering. The sieve is static, the "blades" rotate, powerful pumps force flow of the slurry.
As the blades move, edges match and then miss apertures in the sieve. High, fast changes in water pressure takes place, any clumps get pulled all over, particles get separated, fibrils hydrated.
Good pulp happens.
A garbage disposal has an outside cylinder static sieve-like element, and a rotating plate with perforations and two or more "teeth" attached. Similar high shear fast changes of pressure happen as this plate rotates at high speed. The "teeth" plus the water pump effect taking place by the fast rotation delivers the desired intense turbulence that is meant to break apart clumps while pushing the slurry away from the device.
Industrial hydropulpers are the tool of choice to manufacture over 99.99% of paper pulp made in the world, essentially wood sulphite.
Western paper, for centuries made from rags, initially depended on a machine called a stamper, consisting of large wood hammers "stamping" pulp within containers.
A garbage disposal is not a one-to-one replacement to the Hollander beater. Just like the Hollander is not a replacement to the medieval stamper, a hydropulper cannot do well or at all certain things a Hollander or a stamper can, while it is possible that, in certain circumstances, a hydropulper is better than a Hollander.
Probably the main advantage of a hydropulper is the price: a good quality garbage disposal is available for about $300 USD, while the cheapest Hollander is almost 10 times more expensive, I believe that a Critter (a great tool, by the way) goes for about $2,500, plus shipping from NZ.
Another major advantage of the YamaPulper is the kind of container it can be part of. My earliest models connected to a 13-gallon Rubbermaid tote plastic bin, my current one powers a 40-gallon yard waste bin. Meaning, 40 gallons of furnish per run, about 2 lbs. of dry half-stuff. Yup, same same garbage disposal unit since day one (well, it has issues by now, more details later).
Probably the main advantage of a Hollander is its versatility as to fiber sources: even a Critter can chew through many things that would choke a garbage disposal silly. But, for making paper out of half-stuff (often called "linters"), it's hard to beat the YamaPulper from a Return on Investment point of view.
Must do maintenance
Copper pipe, fan
to reduce knots and grapeshot
Printing and Papermaking Top Press
By the way, , the wooden press is shared with you for the "LOLs", as I heartily and in the strongest fashion dis-recommend a car-jack press made out of wood. Those things are DANGEROUS. 6 tons is a lot, 20 tons is a LOT (this was 20), and if something goes wrong, it will essentially explode, sending splinters who knows where.
Don't try this at home, capisce?
A today famous papermaker has told me about blowing up a car-jack wooden press in the early days as an intern...
Since I do have some good friends that know way more about hacking tools than I ever will, when they saw my wooden press they were saying that they expected me to show up any day with either three eyes or else only one... That helped me realize, when I eventually got into printing "for real" and then papermaking, that I needed a purpose built frame for a press, that then I added platens to - originally the platens that has been part of my wooden press.
So, don't do it.
Yet even I must admire that hinged system with counterweights that allowed easy access to firm platens,
I survived probably in part due to having been assigned a heavy-duty guardian angel when I was a rugby player (only explanation how anyone can survive that game), and managed to keep it for the duration.
In 2015 I acquired and made modifications to a steel press, for printing, and the next year I "got it" that I was to make paper if I wanted to be able to afford good paper for printing.
BTW, the pressure was too much for some parts, that bent.
What I use now is reinforced, and is still dangerous, only to be attempted if you have an excellent idea of what you're doing, and totally on your own responsibility, I don't know you, and don't want to...
With that out of the way, a picture of my current press. Admire the plastic liner to rescue water, very little, but some, as I use a vacuum table to couch. My paper is merely damp when going into the press, and I mostly press to make the paper stronger, give it good "crackle", and tto exture the surface, as I am all about 'Cinque Tooth lately. Of course it is always good to remove as much water as possible before going into the drier.