The four key aspects of hardcover book printing

First, the printing process

1 point version: In particular, foreign-funded factories print 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 The hue of printing is fully in line with the guest's provision of the color draft: The use of the German R410 hue density meter, the main picture color difference in the ± 3% range.

4 characters, clear patterns, a strong sense of gloss level.

5 Printed on the front and back, clipped and clipped.

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.

Second, the text

The inner liner is consistent with the three sides of the shell floats: the book block is generally smaller than the hull 3 mm 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.

Third, appearance factors

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.

Fourth, feel

The book has a heavy sense, the book slot has a sense of sag, turning the front and rear hull face 180 ° no sound, the pellicle book book slot and the liner paper appear false glue phenomenon.

In addition, in addition to the quality of the binding process described above, the hardcover book must be centered on the two ends of the hole, and the hole should be flush and free of burrs. The closing position should be 1mm and the wire should not exceed the book block. This can give people a sense of simplicity in modern beauty, but it also combines the exquisite feel of modern craftsmanship.

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