WHAT IS DESIGN FOR PRINT?//FINISHING:BINDING//OUGD504

BINDING SCREWS:

Binding Screws

Definition: Used for binding loose sheets, pillar and post screws are used to secure the printed document.

What is it used for? Commonly used for product swatches, photo albums, bespoke brochures etc

At What Point do we do it? Binding Screws are a print finishing process (after printing).

How do we do it? The pages are gathered in order, drilled, and the pillars and posts are inserted until they meet - they are secure by screwing the pillar and post together..

More about... Interscrews are available in Brass, Nickel, Black or White Plastic. Available heights for book thicknesses are 2, 3.5, 6, 10, 12, 16, 20, and 25mm.

SMYTH SEWN

Construction: Smyth Sewn (also known as Section Sewn) book bindings are the highest quality book binding available on the market today. It is the hallmark of library quality, archival safe books because the pages are physically sewn into the book using binders thread and further reinforced with fabric backing and adhesive to create the most usable anddurable books available... 

Textbooks and books for libraries are typically Smyth Sewn because they stand up to years of wear and tear. Smyth Sewn bindings use thread to sew through folded signatures of a book. Signatures are made by printing on large sheets and then folding into groups of pages, usually 16 or 24 at a time. Each signature is sewn individually with threads going through each page several times. The threads are then tied off. All of the signatures are likewise attached together with thread creating what is called the book block. The book block is further strengthened using flannel and adhesive on the spine.

CASE BOUND:

Case binding is a traditional method of binding for books and registers. Cased-in books are made of greyboard and covered with printed and laminated paper. They can also be covered with material such as PVC coated paper, bookcloth, leathercloth or real leather.  The standard binding for a hard back book.  There are many different types of case binding but typically the inner pages are sewn together in sections  and then these are glued to end papers which are glued to the covers.

PUR BINDING:

PUR (polyurethane reactive) glue is the most durable binding glue available, offering design flexibility for any number of applications, including catalogues, instruction manuals and art books.

PUR allows us to successfully bind materials which would not have previously been attempted using conventional EVA (Ethylene Vinyl Acetate) hot melts.

PUR adhesives differ from conventional EVA hot melts in that they cure by crosslinking via a chemical reaction with moisture contained in the paper stock or surrounding air. Once cured, the adhesive's higher molecular weight provides a tough, pliable bond that is resistant to temperature extremes.

A common concern with perfect bound books is their stability in extremely hot or cold temperatures. PUR adhesive is impervious to temperature extremes. That means PUR-bound books can be used anywhere – from the hottest summer heat to the most harsh of winter conditions – without unwanted remelting or cold cracking.

The page pull strength of a PUR-bound book is more than 2.5 times that of a standard perfect-bound book using EVA adhesive. Books bound with PUR adhesive simply will not fall apart, even under heavy usage in the most demanding conditions.

The composition of PUR adhesive enables it to form a strong bond with the paper even in the presence of inks, coatings and varnishes. This is in contrast to EVA perfect binding, where these items must be removed from the spine area prior to binding. Another major advantage of PUR adhesive is its flexibility once cured.

COMB BOUND:

Comb binding (sometimes referred to as "cerlox or surelox binding") is one of many ways to bind pages together into a book. This method utilizes round plastic spines with 19 rings (for US Letter size) or 21 rings (for A4 size) and a hole puncher that makes rectangular holes. Comb binding is sometimes referred to as plastic comb binding or spiral comb binding.

To bind a document, the user first punches holes in the paper with a specialized hole punch. Pages must be punched a few at a time with most of these machines. If hard covers are desired, they must be punched as well. In bulk applications, a paper drilling machine may be used.

Then the user chooses a spine size that will match the document. Standard sizes are 3/16 inch (for 10 sheets of 20# paper) up to 2 inches (for 425 sheets). Spine lengths are generally 11 inches to match the length of letter-size paper.

The rings on the spine open and insert into the holes in the page, then rest against the body of the spine, resulting in a closure that can be opened again for making changes to the book.

COIL BINDING:

Coil binding, also known as spiral binding, is a commonly used book binding style for creating documents, reports, presentations and proposals. This binding style is known by a number of names including spiral coil, color coil, colorcoil, ez-coil, plastic coil, spiral binding, plastikoil and coilbind. Documents bound with helical coil (usually called spiral coil) can open flat on a desk or table and offer 360 degree rotation for easy note taking. This binding style is durable and is often used for documents that need to be mailed. Spiral coil binding spines are also available in more colors and sizes than other binding styles.