Entering the bookstore nowadays, a wide variety of books are displayed in front of readers. Most of them are paperback books, riding staples, board papers, etc. The most striking ones are hardcover books.
In order to meet the needs of customers in the market, there are more and more materials used in hardcover bookcases, including paper materials, fabrics, leather materials, leather materials, and PVC materials. The binding styles include string, wireless, and round Ridges, side ridges, soft leather shells, hard leather shells, hardcover books, etc., are overwhelming and can not be put down. With the continuous improvement of people's pursuit of beauty, the book is not only limited to its content value, but also related to its print binding quality. Books that read or make a collection have already linked beautiful arts, exquisiteness, and practical reading.
1. print
1 point version, especially foreign-funded factories printing the same version of a number of books , no mixed version, leaving intentions text, signs and so on.
2 The front and back sides are printed without any misprints. The front and back sides are printed on the right side, and overprinting is accurate. The error is ≤ 0.2mm.
3 Printing Hue is fully compliant with the guest's provision of color reproduction. The German R410 Hue Densitometer is used. The main picture color difference is within ±3%.
4 Printed on the front and back, clipped and clipped.
5 text, pattern clear, glossy layered sense.
6 outlets are full, 5% fine nets are not lost, large points are smooth and clean, outlets increase ≤10%.
7 There are no ink bars, water bars, ink skins, dislodging words, pastes, etc.
8 No dirt, focus, ghosting, copying, flying water, scratching, flying ink, deinking, etc.
9 There is no extra corner line film mark, the layout is clean without stains, no traces of powder, etc.
2. Exterior
Founder, no stains, no flowers, no wrinkles, paste level, no blistering, no damage, ridges in the middle, the length and thickness of the plug cloth do not skew, round ridge from the circular degree is generally greater than the book The thick 5-6mm, the spine of the spine is commensurate with the arc of the book.
3. Text
The inner liner is aligned with the three sides of the shell shell. The book block is generally smaller than the shell 3mm without skew, the spine and the book mouth are plain, the ridge does not appear trumpet, no knife, oblique, book block and hull center No drop position, pinhole no glue, no breaks in the string line, line loose, stains, no size page, page order chaos, glue height between posts and posts 1-3mm, no empty plastic, false sticky.
4. Feel
The book has a sense of realism, the book slot has a sense of sag, turning the front and rear hull face 180 ° no sound, the pelt surface book book trough and the liner paper appear false glue phenomenon.
In addition to the hardcover book in addition to the quality of the relevant processes of the above binding, punching holes must be centered, the hole is flush, no burrs, the closing position is 1mm, and the iron wire does not exceed the book block. In this way, there is no lack of simplicity in modern beauty, but also the exquisite modern craftsmanship.
