In recent years, the development of bookbinding materials has been extremely rapid. The types and styles have increased extremely rapidly, and new types of materials have gradually increased. Among them are the cover materials and adhesive materials.
Cover material
The cover is an indispensable part of book binding. While the book binding technology and equipment are constantly updated, the cover materials used for book binding have also evolved from the original to more than 10 kinds.
(1) Fabric and paper blending (top)
After the paper is mixed with cotton, silk (embroider, brocade, velvet, silk, etc.), hemp, and a small portion of chemical fiber, then a hard (or soft) paperboard paste is used to make the book case. Hardcover book cover (or shell).
(2) Dermis
After processing with animal skins (mainly sheepskins), soft fabrics of various colors are made, then glued together with cardboard to make high-grade shell material (also can be made into soft noodles without cardboard), used for luxury Hardcover, high-end albums, high-end booklet cover processing.
(3) paint coating
The cover material made of nitrocellulose varnish coated on fabric or paper is a substitute for the leather cover. It is often used as an ordinary hardcover book, booklet, letter of appointment, certificate cover. However, due to the contamination of this material, it has been used less frequently in recent years.
(4) Plastics
PVC-based, a small part of the cover material made of polystyrene, divided into two kinds of soft and hard, soft plastic used in this book cover, a variety of documents cover, the outer cover of student books and hardcover cover processing. Hard plastic is used very little and is mainly used to make the cover of this volume.
(5) Paper Coatings
The cover of the film cover has been used very much in recent years. There are two kinds of split film and matt film. About 60% of paperback covers are covered with cover film. In the hardcover book, the proportion of paper covered with coated film is also Gradually increased.
(6) PVC coating
The cover material made of polyvinyl chloride emulsion coated on plastic or paper and embossed (multiple colors), the binding cover for PVC used for binding is mainly paper-based, and the cover is coated with PVC after coating the cover with PVC. Hardcover book shell (or directly attached to the book to make soft surface hardcover).
(7) Resin impregnation and non-impregnation
Commonly known as pattern paper, it is a cover material made by impregnating, coating, glazing, applying water, and pressing different patterns into the base paper. It can be used for the processing of various volumes of books, books, etc., which are especially suitable for hardcover ring linings.
(8) Dipping and coating
It is a relatively high-end cover material. After soaking and dyeing the base paper, a layer of polyvinyl chloride is coated on the surface of the base paper. It is mainly used for hard cover processing and can be used as a leather effect.
(9) Resin adhesive composite fabric and paper
It is a cover material that is a composite of paper and fabric resin. This cover material can be printed in four colors on one side of the fabric and is a more upscale hardcover cover material.
(10) PVC frosted
The PVC material surface Fengding a layer of fluff, such as the skin of the cover material. This kind of material can be real and can be processed like a genuine leather. It can be used on the covers of hardcover books and hardcover books.
(11) Regenerated leather
The recycled leather is made of recycled leather, resin, pigment, etc., which is made of leather as the cover material. It can be used instead of leather to make the cover. It has more leather varieties, brighter color, beautiful appearance and cheaper price.
(1 2) Metal and paper composites
After the metal powder is slurried and coated on the surface of the paper, the surface of the material is generous in color, elegant and beautiful. It can be used for the covers of ancient books, and can also be used as covers for modern high-grade hardcover publications.
(1 3)UV Polishing
In recent years, the cover of UV printing and coating has gradually increased. This is one of the important processes for development. UV coating is divided into all UV, partial UV and film plus local UV coating and other processes, can be used for a variety of cover framing, its processing is convenient, effective, beautiful appearance and application.
(14) Paper and cardboard are the most common cover materials. The commonly used paper is 80-200g/m2, but it is not suitable for hardcover covers. In recent years, paper jams (250 to 400 g/m2) have been used more and more as cover materials because they are smoother than paper.
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