Unica is a

vulcanised Vulcanization (British: Vulcanisation) is a range of processes for hardening rubbers. The term originally referred exclusively to the treatment of natural rubber with sulfur, which remains the most common practice. It has also grown to include ...

lump paper material. It was (and to some extent still is) used to make boxes. The most famous product is probably a

lunch box A lunch box (alt. spelling lunchbox) refers to a hand-held container used to transport food, usually to work or to school. It is commonly made of metal or plastic, is reasonably airtight and often has a handle for carrying. In the United ...

. But unica has also been used to make suitcases, helmets, buttons, shoes and, during the

Second World War World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the World War II by country, vast majority of the world's countries—including all of the great power ...

it was even used to make fuel tanks for Swedish aeroplanes. Many unica products were made by AB Tidan in

Mariestad Mariestad () is a locality and the seat of Mariestad Municipality, Västra Götaland County, Sweden. It had 16,611 inhabitants in 2019. Until 1997 it was the capital of the former Skaraborg County and an episcopal see in the Church of Sweden b ...

. Nowadays unica boxes are made by Alstermo BrukAlstermo Bruk
/ref> in

Småland Småland () is a historical province () in southern Sweden. Småland borders Blekinge, Scania, Halland, Västergötland, Östergötland and the island Öland in the Baltic Sea. The name Småland literally means ''Small Lands''. The Latinized ...

, Sweden.

References

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