Research in deinking agents for paper now is backward and is inclined to synergistic mixture. The variety of deinking agents is little and mainly is anionic type. Many deinking agents must be imported from Euramerican developed countries.

• 目前，我国在造纸脱墨剂的研制方面比较落后，主要偏重于复配，脱墨剂品种单一、陈旧，多为阴离子型，仅有少部分为非离子型，大量需从欧美发达国家进口，近几年来，新型脱墨剂的专利主要以日本为主。