Why PUR adhesive is better than EVA adhesive for book binding?

There are a number of binding options, including Polyurethane Reactive (PUR), Ethylene Vinyl Acetate (EVA) hotmelt and Polyvinyl Acetate (PVA) cold emulsion adhesives, or Smythe sewing. PUR has only been in bookbinding since about 1989. PUR binding was first adapted by midsize trade binderies for producing many trade journals and annual reports due to short lead times using highly coated and cross-grained papers without sewing. These markets will continue to be the high users of PUR, but publishers are now recognising the benefits of PUR and are requesting the use of PUR binding to ensure quality and longevity to their products.

Why PUR?

Since its introduction, PUR use has increased dramatically. PUR is chosen over standard hotmelt adhesives for many reasons, the most important of which are its superior adhesion and the ability of a PUR-bound book to lie flat when open.

It is very important to understand the main differences of the two important binding technologies in the market today.

Different types of Glue


Advantages of PUR

1) Excellent flexibility and lay-flat quality.

2) Cold and heat resistance enabling books to be bound, stored and used in extremes of temperature.

3) PUR can bind varnished, UV-coated, carton, mylar and other stocks.

4) Impervious to print oils used in the digital print process and binding quality is unaffected by ink migration into the spine.

5) 40% to 60% better page pull results as compared to EVA Hotmelt.

6) Can handle recycled papers.

7) Handles cross-grained stocks better.

8) Square backbone: Because only a small amount of PUR needs to be used for binding, less adhesive is squeezed out when the cover station and side clinchers attach the cover and form the back.

9) PUR is also environmentally friendly due to its low VOC (Volatile Organic Compounds) and the working temperature is set at around 120°C while EVA is at around 170°C.

Advantages of EVA

1) Fast curing (in few seconds) & Quick turn-around time.

2) It is cheaper when compared to PUR glue.

3) Ease of operation, most often it is very easy to handle and maintain PUR gluing system as compared to Hotmelt gluing system.

4) Finished book can be easily handled.

5) Cleaning process of EVA binders is very simple/easy as compared to PUR binders. Most often it takes more time to clean PUR binders.

4) EVA Hotmelt glue still have their place in book-binding, especially when it comes to binding thread-sewn books, as the thicker glue allows for greater penetration into the spine area of the folded sections.


In summary, both processes are still widely used within print finishing. The question’ which is best’, probably needs to be replaced with the question ‘which is most suitable’, as the decision to use one over the other is very much job specific and would involve numerous considerations – from substrate used and thickness of the book, to the intended use of the product and any financial constraints to produce.

Amey Alshi

International Commercial Marketing

Duplo’s London Calling Rocks!!!!

Duplo’s London Calling Rocks!!!!

Duplo presents its fourth annual event London Calling Rocks on 6th and 7th November at o2, The British Music Experience.

We will be showcasing a host of new digital finishing solutions, Come and experience the mind boggling combination of Print and Music.

1) Duplo DBMi Duetto – Hybrid Saddle System (Recently Nominated for the International Print Technology Award 2012)

2) DC-745 – Cutting/Creasing System (Was awarded the Product of the Year 2012 by NAQP owners conference

3) DC-645i – Cutting/Creasing System

4) Digital System 445 pro – Low-Mid volume Digital Bookletmaker

5) Digital Sheet Feeder 2200 + Booklet Maker 120 – Low volume Digital Bookletmaker

6) DS-5000 Pro – High volume Digital Bookletmaker

7) KB-4000 – PUR Perfect Binder

Esko, Fujifilm, Vpress and Balreed will also be at the event, along with Fastback, Duplo’s latest partner, which will be binding books on its Fastback 20 in collaboration with a Balreed digital printer.

Non Duplo Products

1) ESKO Kongsberg iXE-10 – Digital Die-cutter

2) Konica Minolta Bizhub Pro C6000L – Digitial Press

3) Fujifilm Actuity LED 1600 – Wide-format LED UV Curing system

4) Fastback 20 – Desktop thermal binding system

5) Vpress Coreprint – Web2Print solution

Don’t miss the most happening event of the year!!! Register at http://www.duplolondoncalling.com/ 

Duplo International’s Success Story

I’m now approaching my 24th anniversary with Duplo International Ltd, having joined the business in June 1988. I’m rather proud to have been part of the team that has helped grow the business nearly ten-fold in that time.

The success of the business is due to the marriage of cutting edge product innovation & manufacturing, combined with first class sales & distribution. Duplo Corporation in Japan maintains a high level of innovation, producing products that meet the changing demands of our customers, those organisations producing printed products for their customers. Innovation is based on their possession of long and established work in this specialised field. Duplo have been tremendously successful in developing products that meet the needs of the ever changing digital print market. http://www.duplonet.co.jp/eng/welcome/

Over the past 25 years, Duplo International Ltd has developed an extensive distribution network, starting from its base in the UK, and then developing via distributors across the old European Common Market during the 1980’s, followed in the 1990’s by developing new relationships with the Eastern European countries after the fall of the Berlin Wall and exploring opportunities arising in Africa & the Middle East. We now have a network of distributors stretching across 70 countries. Looking back, the world seems a much smaller place than it was in the 1980’s!

People are a big part of our success and we have always been careful to recruit talented multi-lingual people from across all our territories. This ensures we have the best understanding of local markets and the needs of our customers. By investing in people with a broad range of talents in sales, marketing & engineering, we ensure the best possible support for our products and customers.

Financial stability & strength are an important element in a successful business. By re-investing in the business we have ensured we have the financial stability to carry stocks of product, available for immediate delivery to the network of distributors across our region. Financial stability also enables us to keep pushing into new markets, both in geographical terms and in the range of products we stock & distribute.

For any business, it is important to keep exploring the opportunities for growth. I believe we provide our customers with this same opportunity by supplying them with innovative products, allowing them to provide new services to their client base. Allied to our after sales service, investment in a Duplo machine is an investment for the future growth of a business.

Many years ago there was popular business adage ‘no one ever got fired for buying IBM’ such was the reputation of IBM for quality, innovation and support. Even today, in these difficult economic times, IBM continues to outperform the rest of the IT sector due.
Duplo aspires to the same reputation in the print industry. In troubled economic times, investing in a Duplo product is a great way for our customers to gain a competitive advantage.

Glyn Nutting
Financial Director



Duplo @Drupa2012

The very latest in Print Finishing Systems will be demonstrated at the Duplo International Stand B53 in Hall 13. (Also for more information follow the #DuploDrupa on Twitter). By increasing the company’s footprint at DRUPA 2012 by 50%, it gives an even greater breadth of finishing equipment and in particular three examples of Duplo’s newly launched DBMi Saddle System.

Duplo shares the space alongside its valued German distributor FKS and eye catching overhead signage indicate the sections for Bindery, Saddle Stitching and Digital Finishing.

Saddle Stitching

The new DBMi Saddle System (#DuploDBMi) provides Book production for both Digital and Offset presses and with fast “make-ready” times of approximately  60 seconds and book thicknesses up to 120 pages it accommodates a large variety of formats including the increasingly popular A4 landscape size, right down to formats as small as 90mm x 75mm. It incorporates the latest technology allowing the totally automatic set up of all book parameters to be accurately and precisely registered.


Digital Finishing

DC-745 Production Colour Finisher with Integrated Folding System is the latest multi-function finishing machine in Duplo’s range designed for high volume digital colour print.   Automated Precision is exemplified by the integrated control provided in one pass for cutting, creasing and perforating operations in one pass.  Also featured is slit-scoring which is very popular for professional quality greetings cards.    Duplo will be showing for the first time a number of further enhancements to the range which include Strike Perforation (for stop/start perforating ideal for tear -out coupons and tickets), Embossing and Die-Cutting, and the Integrated Folding System which is the final step in complete single pass production of folded leaflets, greetings cards and mailing pieces.


Digital System 5000 Pro – a high performance digital bookletmaker – accepts sets of sequential printed sheets directly from a digital press then creases, slits, stitches, folds and trims to produce a complete high quality finished booklet in one pass.

It includes the high speed 400 sheets a minute Document Sheet Feeder 5000 which can merge digital and offset, mono and colour printed pages into one complete booklet.    Popular with commercial printers producing high volumes of digital print, the combination of barcode control with job report and auditing features make this system particularly attractive for producing high-value personalised booklets such as financial investment, insurance and pension policies.


Ultra 200A is suitable for both digital and offset environments. When Gloss, Matt or Silk or Satin finishes are required then UV coating continues to be an increasingly popular and less expensive alternative to lamination. The heavy duty Ultra 200A is operated by a simple key pad control and offers many significant benefits, including a long internal conveyor for improved double sided coating quality, and a double sheet detection system. A fully automatic cleaning process and an enclosed UV lamp chamber provides for a quick and safe operation at all times.



The highlight in the Bindery Section is the new FKS PrintBind KB-4000PUR is a single clamp binder offering high quality, on-demand PUR binding. The KB-4000 utilises the benefits of both PUR and EVA Hotmelt glues. PUR is applied down the spine of the book providing a strong and durable finish. The book block is then side glued using the quick drying Hotmelt glue, allowing the operator to handle the book soon after being produced. The PUR binder features a closed tank system, as a result, no fumes are emitted and the PUR glue inside the system is preserved for longer.    http://www.duplointernational.eu/products/perfect-binders/kb-4000-pur

The DPB-500PUR binder offers an extremely high degree of accuracy and security for both Offset and Digital perfect bound books. The DPB-500 PUR incorporates a fully automatic process allowing the operator to simply access from one of 20 job memories, via the touch screen monitor. All book parameters are accurately positioned within 30 seconds providing maximum productivity and precision at all times. The DPB-500PUR can be programmed to accommodate a range of specifications including book thickness, side gluing and cover scoring.


For further information contact

Samantha Mee

International Marketing Communications Manager

Email: Samantha.Mee@duplointernational.com

Trends in the Print Industry

To say the print industry is changing is an euphemism. Today when you say printer people think that you are referring to the little device that sits on their desk at home or in the office that produces beautiful photo quality colour. This is one of the benefits of improving technology. It also means that putting an image on paper can be done by just about anybody easily at the click of a couple of buttons. Of course this is one of the reasons why Kodak is no longer the high flying company that it once was. Digital photography made taking pictures easy, printing them and putting them into a pretty album has become easy too.

As technology makes processes easier adding value for customers becomes more challenging. Add to that the worst recession known to mankind and you have the perfect recipe for major change in industry. The production of paper for print has dropped by 30% over the last 4 years. The Print business’s problems were caused largely by not understanding the internet and its associated revolution of computing and communications, and not adapting to a different collection of marketplaces and decision-makers with new needs and new agendas.

 What will happen next? Doing nothing is only an option if you want to go the way of the Dodo. Getting creative with print, and lets face it most people can’t tell how it has been printed these days and they don’t really care as long as it looks good, means that finishing will be where you add value.

Deskilling of the labour force, especially in print, has meant that manufacturers have all had to make machines that are easy to use. I’m happy to say that Duplo have been at the forefront of this drive. Drupa 1995 was when they launched the world’s first self-setting stitcher folder, which could change size fully automatically in less than 60 seconds and was accurate to within 0.2mm. Technology has moved on, especially with the advent of the print run of one. No wastage on set up and fast changeover are a given. More complex tasks are now done without the need for operator intervention. Cutting, slitting and creasing all in one pass, fully automatic set-up from a barcode on the sheet and with image shift recognition. What is more you can integrate folding and skip perfing all in one pass and with zero operator intervention.

Why is this good? Finishing is where you can add value to your image, and when it is your digital press operator doing the finishing as well, you’re adding value at no extra cost. Not convinced? Imagine receiving 25 business cards on an SRA3 sheet and told to cut them yourself?  A print that isn’t finished is virtually worthless! And when all Printers have understood this they might stop paying premium prices for the easy bit: printing.


Robin Greenhalgh

Chairman, Duplo International

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Am I a Twit?

This was my conundrum – am I being a Twit to enter the world of twitter, or am I a Twit to avoid the whole area of social media?

Would it be another drain on my time, as I grapple with all the new contacts and scratch my head to create catchy messages, or will it open up a whole new valuable resource?

Being somewhat old school, I was also concerned about security – could someone steal my identity and what about legal issues? Would I fall foul of the law inadvertently?

In the end I decided if it was good enough for the BBC and far more eminent people to use, it must be something to at least try for myself.

A colleague showed me how to find the Twitter site and l logged in my details. Next I had to find five other Twitter accounts to start me off. It was as easy as that. Now I have to start the creative part and this article is my first step to try and help others who might have felt as I did. So if you would like to share your thoughts and business experiences with me we can set forth and begin our journey together.

From a new Twitter recruit.

Kind regards,

Nina Laverock

Marketing Communications Manager


With Drupa 2012, the Print ‘Olympic ‘event coming up in a few months I thought it would be a good idea to analyse the  role of ‘Events’ within the print industry in this multi-media world of today.

First I would like to clarify what I mean by ‘Events’. Effectively I am thinking about exhibitions like IPEX and Drupa plus manufacturer led events including open houses in showrooms and focussed events in outside venues.

Events /Exhibitions have changed dramatically since I first started to tread the floors in the NEC and Dusseldorf Messe. Customers can now access information on products and services very easily via the web. No longer do they visit exhibitions on a ‘fact finding’ tour picking up hundreds of brochures.

Typically customers know what type of product or service they want and they have narrowed their choice down to 2 or 3 options and are coming for final verification. Or they have seen something interesting, say a new technology, in the printing press and come along to see it for themselves.

So exhibitions have changed. Basically people who are either in the buying cycle or are looking what is coming to plan their future strategy come to events. Let’s be honest everyone is too busy just to pop along anymore just because.

At Duplo we focus on one thing when we plan events. Making sure that our potential customers know what we are showing and talking about. Our customers can then make an informed decision if they need to attend. This is why for our latest open house (titled ‘The Event’ by chance) like our London Calling annual event we use extensive PR, prominent outside back page advertising, direct mail, email blasts and most importantly sale managers visits to inform our customers what we are doing.

So are Events important? In a word YES! I still have not yet met a printer who has bought a piece of hardware who has not wanted to see it first, test it, run jobs on it and most importantly meet the organisation who will service the machine afterwards. I think I have a few mores miles to tread in exhibition halls.

Tony Lock

Managing Director Duplo UK