Unlike edition binding equipment where hot animal glues are
used for the assembly of the case, library binders use cold
emulsion PVA adhesives for their automatic and manual case-making
equipment to enhance joint adhesion when the book block and
cover are being united.
The introduction of Mekatronics' MEK-A-CASE
led to a search for a suitable adhesive that would possess
the proper open time and tack characteristics that would optimize
the throughput of the machine. After extensive research and
testing, National Starch and Chemical Company, a division
of ICI Ltd., formulated HYTAK-555. This adhesive, with
an aggressive tack and proper open time characteristics, enables
users of the MEK-A-CASE to boost productivity by reducing
the dwell time of the turning-in operations. HYTAK-555
is also suitable for use on other automatic case-making machines
as well as for manual case making.