Integrated
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IBIS ISG-100 Cold-Glue Binding System

The Smart-binder may be supplied as model SB-3 which also includes IBIS’s unique ISG cold-glue binding system.

The Smart Label-binder, used to produce ECL booklets, normally uses ISG cold-glue binding when making Pharma ECLs but may use either ISG gluing or conventional wire stitching when making other types of ECLs, such as Agro-Chem.

ISG cold-glue binding produces a “stitchless” book which has better lay-flat qualities than a wire-stitched booklet, as illustrated in the photo below. The lay-flat difference is less pronounced when making thin booklets.

Booklets with ISG cold-glue and conventional stitching
Booklets with ISG cold-glue (left) and conventional stitching (right)

ISG Cold-glue applicaton nozzle on the Smart-binder
ISG Cold-glue applicaton nozzle on the Smart-binder

The ISG cold-glue ‘nozzle’ applies a row of cold-glue ‘dots’ (or a continuous glue line) to the inside of each folded sheet as it passes through the Smart-binder folder. A light sensor detects each dot of cold-glue and stops the Smart-binder immediately if the nozzle is blocked to ensure only correctly bound booklets are produced. Sheets are then collected on top of each other (on the saddle) and pressed together tightly when they reach the stitching station (the stitching heads are inhibited when cold-gluing, or replaced with a pressing ‘anvil’).

ISG Cold-Glue binding system, ISG-100
Outer sheet opened
No visible
bind method
Very tight fold
ISG glue dots
between sheets
(not visible unless
sheets are torn
apart and
inspected closely)

The many advantages of ISG cold-gluing over conventional wire-stapling include:

  • ISG glue gives higher page pull strength on the outer and inner sheets
    Note:The paper bond strength when using ISG gluing is linked to the integrity of the paper surface. Higher strength results from more absorbent papers. Certain toners may weaken the bond strength if applied to the same area as the ISG glue (the sheet fold)
  • ISG gluing results in a tighter fold, particularly on thicker books. This is because wire stapling tends to ‘open up ‘ the book and the moisture in the cold-glue softens the paper fibers and helps give a tighter ‘set’ to the fold
  • The ISG gluing process allows the number of pages in the book to be changed between minimum and maximum on-the-run without any adjustment (wire stitching requires stitch head pressure adjustments)
  • ISG gluing allows the book format size to be changed without adjustment (wire stitch heads may have to be moved to a different position when changing book lengths)
  • The ISG cold-glue is a “maintenance-free” system which is easy to operate than wire stitch heads
  • Cold-glued books can be recycled more easily than books containing wire staples
  • Glue binding avoids any child safety (finger damage) issues relating to the edges of wire staples
  • Glued books can sometimes be mailed directly, unlike wire-stapled books
  • ISG cold-glue costs approximately the same in consumable material costs (on a ‘per book’ basis) as wire stitches (and much less than hot-melt EVA adhesives used for conventional ‘perfect-binding’)
IBIS ISG Cold-Glue binding system, ISG-100
Thick-book cross-section comparisons:
Wire-stitching versus ISG cold-gluing
Wire
staples
ISG
cold-glue
between
sheets
1) Stitch/fold/trim
process
(conventional
booklet-maker)
2) Individual
sheet folding prior
to wire-stitching
(all Smart-binders)
3) Individual sheet folding
prior to ISG cold-gluing
(Smart-binder SB-3 and usually SLB)

For the recommended glue to be used with the ISG-100 system view the ISG glue: info & specs datasheet. If an alternative glue is used then it must have a similar specification.