EVA Hot Melt Technology

How to Plan Your Work

This section guides you in choosing the paper and planning both the inner pages and cover to produce a high quality book. Fastbind Perfect Binding system means freedom from special supply. Here we tell you what you should consider when using your freedom and producing unique books.

Pocketbook and a printed cover carton

 

Fastbind Hot Melt EVA Technology  

Fastbind’s rotary EVA perfect binding system is a modern and unique solution to better binding quality in a cost efficient way.

  • The book block to be bound is inserted into the clamp equipped with stops which ensure accurate positioning and keep the block well knocked up. The clamp closes precisely to the block thickness and fixes it tightly.
  • The block is rotated spine up. The patented Fastbind paper grain opening system (PGO) breaks the paper surface and opens the paper fibre to increase the surface covered with adhesive.
  • The adhesive penetrates from above and is forced into the spine of the book, directly into the paper fibre and between fanned sheets providing strong adhesion.
  • The book block is rotated back into the starting position. The cover is placed and pressed strongly against the book spine from two sides by the unique folding bar, automatically adjusting to the book thickness. This operation both fastens the cover to the block and presses the sheets together, making the binding stronger.

Fastbind perfect binding

With Fastbind machines you can quickly and easily produce professional-quality hard covers and books with wrap-around covers or pads without cover. Thanks to the unique design, Fastbind machines combine high productivity required for larger print-runs with flexibility essential for smaller jobs. Fastbind equipment is exceptionally compact, silent, and easy to use.

Fastbind benefits:

  • Designed for digital environment
  • Fast - no adjustments needed
  • Silent to use
  • Odourless
  • Can use almost any paper
  • Virtually dustless

  • User friendly
  • Flexible: soft and hard covers, tape binding, lay-flat binding and pads from A6 to SRA3
  • Small footprint
  • High quality binding
  • Cost efficient
 

Choosing the Paper  

Pay attention to post-printing processes

  • Heavy coating means difficulties for collating and binding
  • For the book to be readable the paper shouldn't be too bright white (eyes get tired), but it should still reproduce the colors as well as possible.
  • Optimize the grammage and opacity (the text shouldn't show through)
  • Offset, laser and inkjet printing all set their specific demands to the paper.
  • Avoid too thin material as well as too thick for the cover

Pay attention to grain direction

Always, when it is possible, plan your print work so that the inner pages have long grain. This eases opening of the book.

The grain direction in the cover should be in the direction of the spine. This means choosing short grain card for the cover.

The grain direction comes originally from the paper mills process. Long grain inner sheets are easy to open as a book while short grain innersheets are not so easy.

Openability

 

Planning the Inner Pages 

Electronic collating is the main benefit of digital printing for book production. Design your work so that on one printing sheet you have always pages of only one page number.

The grain direction

  • The grain direction in the sheets should always be along the spine (long grain)
  • This way the book opens flat better
  • The book is neat and easier to handle

Margins at the edge which will be glued

  • Easier to read
  • The amount of silicon on the adhesive area is smaller
  • The amount of ink on the adhesive area is smaller
  • Minimum for the margin should be about 15 mm

Correct grain direction

Correct paper grain direction guarantees good openability.

 

A4 sized books

  • The content is usually printed straight on an A4 sized sheet so that the print out is immediately ready to be bound
  • It's also possible to print on a bigger sheet e.g. A3 size, but then the sheets of course have to be cut before binding to an A4 sized book.

A5 sized books

  • Very easy to get wrong grain direction as you can only get one A5 sheet out of a normal A4 sheet (copy paper usually has long grain)
 

Planning a Soft Cover 

When using card available in the standard assortment of the suppliers of copier & digital printing machinery it is better to design the print work to start from the corner of the page (not middle).

This allows you to make your nipping line for i.e. A4 format to stay in one place and allow Fastbind automatic nipping system to take care of the back cover nipping (scores according the size of the spine). You can bind thicknesses from 1 page to 40 mm and the paper can be up to A4+ size (320 mm).

Soft Cover Books

Size of the stock cover sheet for A4 or Letter sized book

  • for A4 size: 297 x 457 mm (grain direction 297 mm)
  • for Letter size: 11 x 17.7" (grain direction 11")

Material

  • thickness of the paper 160 - 260 g/m² (e.g. Executive covers are 121 lbs index)
  • coating only on the outside

Positioning on the sheet for an A4 or Letter sized book

  • the place to fold the front page is 210 mm from the front edge in A4 and 8½ inch (216 mm) in Letter size
  • starting point is the top and front edge of the front page

Size of the cover sheet for A5 (148x210) or Statement sized book:

  • 210 x 260 mm (grain direction 210 mm)
  • in United States the Statement size is very close to the European A5: it is 5½ × 8½ inches which equals 140 × 216 mm. Therefore the height of the cover sheet must be accordingly bigger.

Positioning on the sheet for an A5 or Statement sized book:

  • the place to fold the frontpage is 148.5 mm from the front edge. Starting point is the top and front edge of the front page.
  • in Statement size the folding starts 5½" (140mm) from the front edge.

Visual appearance

The thickness of the pages grows after digital printing. This needs to be considered when designing the cover layout. In Fastbind system the automatic thickness registration helps the designer considerably.

Front cover registration depending whether spine text is necessary – in Fastbind system one scoring line is enough – as Fastbind automatic nipping takes care of thickness. Using spine text in very thin books, however, still requires concentration while binding.

 

Binding Soft Covers 

Materials needed:

Three easy steps to binding soft cover books

Step 1: Inserting the cover and paper block


Inserting the cover and paper block

First insert the cover, then place the book block and align it against the paper guide. Hold the block against turntable with your left hand, push the clamp forward and lock it by lifting the clamp handle up with right hand.

Step 2: Roughening and gluing


Roughening and gluing

Turn the table over by pushing the operating handle up. For thin books, apply glue once or twice. For thick books or books with coated paper, roughen the book spine 1–3 times, then apply glue 2–3 times.

Step 3: Nipping


Nipping

Rotate the book block back into the starting position. Push the operating handle down firmly and hold for 5–7 seconds to press the spine and fold the cover. Pull the clamp open and remove the book by lifting the turntable slightly with the clamp handle.