Reply To: Chidushim on Daf Yomi Shabbos 30

שבת קט’ו,א

The Sefer Maishv Davar (2,80) from the Netziv discusses what is considered holy to require burrial. He says that they should be sanctified for permanency. Therefore invitations and photocopies should not have to be burried as they are created for disposal after use and they should be able to be recycled separately.