"Traditional PURs develop initial bond strength through a lowering of temperature in the same way as hotmelt. There is no chemical cure so they're left somewhat weak until they cure," said a Henkel spokesman.
The glue's chemical make-up allows Dual Cure to begin bonding immediately after exposure to the correct UV wavelength.
The process means it reaches 80% strength in minutes, so that the book can be handled and finished immediately at speeds of up to 10,000bph. Opening up PUR to areas where only dispersion and EVA hotmelt glues could traditionally be used.
According to the firm, the cost of converting to running Dual Cure, around 20,000 (30,000), and the consumables costs are comparible to that of conventional PUR systems.
Story by Darryl Danielli
Have your say in the Printweek Poll
Related stories
Latest comments
"Great, maybe now they can increase their 'on-time delivery' rate, because lately it has been shocking."
"I'll give it a week Ray!. I'm sure you won't be able to sit twiddling your thumbs for too long. Thanks for the support you've given over the years, always accommodating and willing..."
"And here's me thinking they bought the Docklands Light Railway."
Up next...
'Nonstop' production and enhanced efficiency
Cimpress agrees biggest investment yet with HP
Print inspired names
Houses on former Bath Press site go up for sale as construction begins
Instrumental in shaping strategy, culture and commercial success
Denmaur's Doug Jessop sets retirement date
Newco managing cash 'judiciously'