Hardcover book processing technology tips

1, hand-rounded tactics

(1) Use a damp cloth to moisturize the back of the book (do not use a water brush) before hand-rounding, and wait until the glue is soft and then make a round.

(2) It is necessary to use the right hand to make a round. It should be 2/3 of the thickness of the book to reach the standard of the round potential. After finishing the round, the books are stacked neatly, and the top must be pressed to avoid deformation.

2. The 16-character principle to grasp by hand

(1) The clips must be accurately clamped and left unmoved, and the ridge height should be the same.

(2) When the ridge ridge should pay attention to 16 words, that is, "first chanting the middle, the force on both sides, first light and heavy, use both hard and soft", should not be rushed on both sides to find the ridge, be sure to make the book after the dumping on both sides And then squat on both sides.

(3) The book after the ridge should be placed underneath when stacked so as to avoid deformation of the spine due to compression after stacking.

3, after the sticky cloth is bent, the solution at both ends is hairy

The plug cloth purchased is soft and not stiff. Therefore, the plug must be filled with pulp before use. There are two kinds of over-sizing methods: When machining, the plug cloth is put into the adhesive and soaked in the entire disc. Then, the waste paperboard is wound around to dry, and then it is cut to the required length and then used. . After the plug cloth is dried, it will be very crisp and not cut at both ends.

4, the lining overflow glue control method

The phenomenon of squeegee overflow is now serious, resulting in tearing of the page and poor appearance quality. The lining overflowing glue is actually a result of low operating skills and is completely controllable. Solution: 1 The adhesive should be selected correctly so that the ring lining and the seal 2 and the seal 3 can be firmly bonded. 2 When operating, the brush adhesive should not be rubbed too much, so that one side can be coated; (3) When the lining is applied, first apply the back cloth position of the book, and then apply it step by step. When applying the trimming on the three sides, the brush should be lifted up and coated. The following will make the cut edge be coated with adhesive and overflow on the incision. According to the above requirements, it can solve the problem of scouring.

5, to solve the scouring after the three bread sticky way

There are many different appearances of lotus leaf-like phenomenon on the three sides of many hardcover book linings. The reason is that the texture of the cover material and the ring lining material are different, and the type of adhesive used is not suitable. When this phenomenon occurs, generally the cover is PVC coating type and film type, the required adhesive strength is higher (unlike paper, paint coating), and the bonding form is semi-attractive. Replaceable adhesive types, such as the use of ethylene-ethyl acetate, polypropylene or 502 glue and polyvinyl acetate emulsion can be used to achieve three-sided adhesive effect.

6, the hardcover book made after the ring lining wrinkled solution

The appearance of hill-like folds in the hardcover book liner is caused by the moisture of the adhesive penetrating the liner (or the book block) during the lining, and especially the strong moisture absorption of the coated paper is even more severe. Solution: 1 ring lining is best not to use coated paper, to use a square paper, the best impregnated with resin; 2 after lining the ring lining the middle pad a coated paper for the moisture barrier, the film toward the bottom of the paper towards In the above, the paper surface absorbs the moisture and the film is segregated so that the moisture does not permeate down into the book block.

7, hardcover book shell solution to the inconsistency

Hardcover book covers are unreliable and can cause severe separation of book covers and book blocks, as well as readers' reading. There are roughly two reasons for the inconsistency: one is that the width of the middle seam is small, and the other is when the viscoelastic liner is too wide. Solution: 1 The width of the middle seam should be designed according to standard data, that is, the width of the roundback midline should be the width of the slot (usually 6-7mm) plus a cardboard thickness; the width of the midrib should be the slot width plus two cardboard thicknesses. ; 2 glue sticking lining the sticky note on the signature should be (1.5 ± 0.5) mm, should not be too wide, wide to make the lift can not open, turn uneven; not too narrow, narrow the lock line is easy to be The needle is easily broken and causes defective products.

8, hardcover book shell upward warping solutions

The problem of hardcover book case warping is an old problem that affects the quality of hardcover books. It is mainly caused by unequal tension. That is, the external pull force is greater than the internal pull force, which causes the hardcover book case to warp outwardly, directly affecting the appearance quality of the hardcover book. Solution: 1 Select the appropriate cardboard, with gray cardboard, cardboard should be light, loose, very, flat; 2 when the lining can be applied in the adhesive when the brush in the seal two and three seal brush two, Saturate the water inside the paperboard so that the internal tension will increase after soaking. The pull force of the outer seal shall not increase, so that the inner and outer pull forces will be equal, or the inner pull force will be greater than the external force and will not warp outward; 3 If the book format is too large (eg More than eight hours), it is also possible to stick a piece of cover paper inside the wrapping two and three wrapping edges, so that the moisture in one layer of adhesive on the cover adds a layer of pulling force. Will not warp upwards.

9, the same version of the hot stamping after the pressure of the solution

When hot stamping book covers, in order to make the pressure the same often have to be hot on a cover a few times, that is, large-character stamping once, small-character stamping once, pattern hot stamping once, this wastes time and waste stamping materials. If you use the same kind of hot stamping material to burn a variety of graphics, you can use the following method of pad paper to solve the problem of paste and pattern caused by the same pressure and unequal stress, that is, the greater the hot stamping area, the greater the pressure (force). The larger the size, the smaller the hot stamping area, and the lower the pressure should be, so that no matter how much the image is hot, it can be completed at one time.

10, hot stamping velvet cover skateboard solution

The villi that cover the velvet cover are generally 2~3mm. When hot stamping, it is the easiest for the slide to cause the vignette to be blurred. This is also a problem that is difficult to solve in hot stamping. In the case of the velvet cover book case, two hot stamping methods can be used to solve the problem. That is, the first time no hot stamping material is used, only some gluing aids are applied on the woven wool that has been stamped. The fluff is overwhelmed, and the hot stamping material is placed a second time before hot stamping so that the desired hot stamping effect can be achieved.

11, hot stamping plastic cover can not produce a three-dimensional effect of the solution

Hot stamping soft plastic cover to produce a three-dimensional effect will also be hot twice, the first time the hot material put a good picture, and then a second press, that is, increase the pressure and then a hot stamping, three-dimensional effect Will come out. (Author: Wang Huai beads)