The substance left,called pulp,can be stored until you are ready to make paper.

VOA: special.2009.07.06

They invented the paper machine so they could mass-produce paper-- it didn't have to be handmade anymore-- and they invented wood pulp paper so it didn't have to be made out of cloth anymore.

于是人们发明了造纸机从而可以大量生产纸-,而不再需要手工制作-,后来人们还发明了木浆纸,所以后来不再用布料来制纸。

耶鲁公开课 - 金融市场课程节选

When you are ready, the pulp is mixed with water again.

VOA: special.2009.07.06

Then the pulp is poured into a special box or mold.

VOA: special.2009.01.26

Then the pulp is poured into a mold.

VOA: special.2009.07.06

The books were to be turned into pulp. More history texts were burned the following day at another demonstration in Simferopol,the capital of Crimea.

VOA: standard.2010.03.17

In a protest against him on Monday in the city of Lviv, Ukraine's Congress of Young Nationalists collected old Soviet history books to turn them into pulp.

VOA: standard.2010.03.17