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In this task, you need to Translate Czech text to English.

Zp sob vroby absorp n ho materi lu se zv enou sorp n kapacitou obsahuj c ho celul zov vl kna zahrnuje o eten vl ken hydrofobn l tkou, v p tomnosti vody, maj c specifickou povrchovou plochu alespo 50 m.sup.2.n./g, uveden m t to l tky do kontaktu s vl kny, kter maj obsah su iny alespo 20 %.Output:
In the present invention there is disclosed a process for producing absorption material exhibiting increased sorptive capacity and cellulose fibers, wherein the process comprises treatment of the fibers with a hydrophobic compound in the presence of water, said hydrophobic compound having specific surface area at least 50 me2/g, and bringing this compound into contact with fibers having dry matter content of at least 20 percent.