Supply China A4 hardcover book printing pomotions


Supply China A4 hardcover book printing pomotions


A4 hardcover book printing pomotions

        A4 Hardcover Book Printing Quality Inspection Requirements

  1. Separate editions, especially foreign-funded factories print the same version of multiple books, no mixed editions, intent texts, logos, etc.

  2. No wrong printing is printed on the front and back sides, and the front and back sides are printed correctly. The overprint is accurate, and the error is ≤0.2mm.

  3. The printing hue is completely in accordance with the color draft provided by the customer? The R410 hue density meter made in Germany is used, and the color difference of the main picture is in the range of ± 3%.

  4. Printed, clipped and color printed on both sides.

  5. The text and pattern are clear and the gloss level is strong.

  6. The dots are full, 5% of the fine nets are not lost, the big dots are smooth and not muddy, and the dot increase value is ≤10%.

  7. No ink bars, water bars, ink skins, collapse characters, paste plates, etc.

  8. No dirt, focus, ghosting, dropped version, flying water, scratches, flying ink, deinking, etc.

  9. No extra corner film marks, clean layout, no stains, no powder marks, etc.

China A4 hardcover book printing

  Three common processes after A4 hardcover book printing.

  1. Making of book block

  The process of hardcover book block is the same as that of paperback book block in terms of folding, binding and bookbinding. In addition, special processing of the hardcover book core must also be performed. The main processes are: flattening, rounding, ridges, appliqués, applique heads, etc.

  (1) flatten

  Is performed on a dedicated book press. After the book core is compacted, its thickness is thinner than the original, and it is flat and solid, which is convenient for the next process.

  (2) Grilled

  Use a rounding machine to cut the back of the book into an arc shape, so that the book stickers of the entire book are staggered from each other, and an inner arc surface is formed at the incision for easy reading. The rounding can also make the book core stronger, and it can be easily connected with the book case, which improves the binding quality.

  (3) Ridge

  Is designed to prevent the rounded shape of the book heart from being deformed.

  (4) Gauze cloth

  Hold the gauze or hard paper on the spine of the book, and cover the stitches on the spine to make the spine stronger.

  (5) Decal head

  Also known as sticking the spine, weaving cotton cloth or other fabrics on the two ends of the back of the book heart makes the whole book more firmly connected and plays the role of decorating the heart of the book. Before applying the applique head, attach the bookmark tape to the gauze on the back.

  2, the making of book case

  (1) Whole book case

  Made of a complete cover material such as linen, cloth, paper or plastic, leather and other fabrics. It includes front seal, back seal and spine lining.

  The whole process of making a book case is as follows: firstly apply glue on the back of the selected fabric, put on the front seal, back seal cardboard and spine lining, and then fold 4 edges of the fabric, flatten and dry.

  (2) ingredients book case

  The is made of 3 fabrics: front seal, back seal, and back lining.

  The front and back seals are mostly made of cardboard or soft and thick paper. Glue is applied to the cloth strips with multiple back linings, and then the front and back seal cardboard is glued to the cloth strips. The back lining is then glued and folded. The cloth edge of the back. Finally, glue the cover paper coated with glue, fold the 4 edges, flatten and dry.

  3. Letter cover

  Book block and book case bonding

  The work of bonding the finished book heart and the book case together is called the upper case, which is the last process of making hardcover books.

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