Tight supplies of hand-made inks led to the appearance of low-quality chemical inks on the market. Businesspeople soon realized that students didn't enjoy taking the time to grind their ink, and began offering bottled liquid inks.
也由於手工製墨條供不應求，市面上便出現了劣質化學墨，後來商家看到學生貪快不肯花功夫磨墨，又推出了罐裝墨汁。