Catching Clouds – Making Kozo Tissue

Last PAQ meeting I had the privilege of running the group’s Hollander Beater, processing my most recently cooked and cleaned paper mulberry pulp. In the past I have hand-beaten it, but was determined to give the mechanised processing a try (to see if I could).

The pulp floofed up into delicious clouds of softly frayed pulp after a few hours circulating in the beater. I took the beaten pulp home, rinsed it a couple of times and then pressed it into pulp storage sheets. I ladled 3 x 2L scoops of pulp into my old A3 mould and deckle, smoothing it off with my hands, then added them to my press, couching between. The batch made 6 such sheets.

After pressing, these pulp sheets were set to dry over the next week – when dry they are storage stash stable.

For the tissue session, I re-hydrated one of these sheets in a tall bucket, tearing it up until it was finely shredded. I then agitated it with my electric drill and a paint-stirrer attachment until it was separate and fluffy again. I brought the bucket of pulp and most of my sheet forming equipment to the PAQ meeting last Sunday and set up a bit of a production line.

I have a large vat (so I can easily move my A3 frame in it), and half-filled it with water. Then added 2 scoops of pulp to the water in the vat, along with half a bottle (about 100ml) of pre-prepared Methyl Cellulose (MC) gel and about 200ml of strained Okra mucilage. The MC was to act as an internal size for the paper (to help with the strength and crispness). The Okra mucilage acted as a suspension aid to keep the pulp from quickly sinking to the bottom of the vat.

After a thorough mix to fluff up and evenly distribute the relatively sparce pulp in the water, I was able to pull sheets by catching the “clouds” that so delicately hung in the water.

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