The gathered sections of the book are milled; the single pages brought about by this are glued in the cover by means of cold glue.
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- The spine is more bendable than perfect bind hotmelt and perfect bind PUR.
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- The inside of the cover also has to be an uncoated paper kind.
- The spine of the cover bends when the book is used and results in unappealing wrinkles in the spine.
- The sensitivity for temperature of cold glue is less than that of hotmelt, but when used at a temperature less than five degrees ‘cold crack’ will occur. Until about one hundred degrees Celcius, there is no problem.
- About 20% more expensive than paperbound in perfect bind hotmelt.
- The time for cold glue to dry is about 24 hours.
SPINE GLUING
COLD GLUE
SPINE THICKNESS
From 2 to 60 mm
SIDE GLUING
Hotmelt till about 5 mm
GRAIN DIRECTION
Parallel to the spine
PAPER KIND BOOK BLOCK
Uncoated paper
