Hårdpärmsbindning

Hårdpärmsbindning, often referred to as case binding or hardcover binding, is a bookbinding technique characterized by the use of rigid protective covers. The pages of the book are typically sewn together in signatures, which are then glued to a lining material to form a text block. This text block is then attached to the front and back covers. The covers themselves are usually made of thick cardboard, known as binder's board, which is then covered with a variety of materials such as cloth, paper, or leather. This covering material is folded over the edges of the board and glued down, creating a durable and protective enclosure for the book's content.

The construction of a hardback book involves several steps. After the text block is assembled, it is often "milled" or "roughed" at the spine to create a surface for the glue to adhere to. Endpapers are then glued to the first and last pages of the text block, which will later be attached to the inside of the covers. The spine of the text block is usually reinforced with materials like mull or super, a type of open-weave cloth, to add strength and stability. Finally, the text block is adhered to the prepared hard covers using adhesive, and the book is pressed to ensure a strong bond. This method results in a book that is robust, long-lasting, and capable of withstanding significant use, making it a preferred choice for publications intended for durability, such as reference books, art books, and collector's editions.