The book's luxury hardcover processing technology (serial 3)

5. Locking head operation and requirements

Locking head refers to the process of cutting the upper and lower ends of the book by cutting the three sides of the book with a silk string to replace the plug cloth. Because the color of the silk cord used is generally two, help to lock the flower head. The flowers that are locked with silk cords are durable, beautiful and unique, and can match the books of Jinkou and Huakou. The following points are performed during operation.

1 Before operation, the 1.5-2mm thick cardboard is cut into square slats. Its length is about 10mm longer than the back of the book or the width of the back of the book. It is used as the bones of the lock head (as the role of the ribs in the plug cloth). The wire with a diameter of 1-1.5 mm was put on the needle and used.

2 In operation, firstly, a book block after pulling up the ridge (or square back) should be erected, with the top of the head or the cut of the foot pointing upwards, and then the flower head bones (cardboard strips) should be centered on the incision and connected with the back of the book. In the position, the slats of the muscles are flush with the back of the book, and then the bones are held by one hand and the other hand is locked by a needle with a thread.

Figure 8 lock the first step

3 When locking the flower head, insert the needle from the first post of the book block (Fig. 8-1), wear it to the nearest stitching line of the sewing line stitching, pull the rope to tie it, and then put the yarn of another color (don't wear it) The needle) is tightened and knotted with a needle thread and a cardboard cardboard lock (Fig. 8-2). When the lock is over 5, 6 posts, the stitching is fixed once and the connection is firm. When the last stitch is locked, it is still tied to the stitching line of the last post block book with the method of starting the head and leaving about 10mm of the rope head, after the locking of the flower head, the excess bone plates at the two ends are cut off. , complete the lock operation process (Figure 8-3, 8-4, 8-5).

The operation of the locking flower head requires: a. The length of the used wire rope is arbitrarily selected according to need, but it is not allowed to have a connector on the head of a book; b. The wire rope is loosely connected and the locking head is flush with no gaps, And so on; c. The width and thickness of the slats are the same, and there is no spillage, indentation and de-roping after the lock.

After locking the flower head book block, the adhesive book backing and sticky book backing paper are performed.

6. Sticky cheese paper operation and requirements

Sticky cheese paper refers to the processing of sticking a cylindrical paper on the back of the book that has finished the back of the book.

The function of the cheese paper is to firmly connect the book block and the book case, increase the strength of the back of the book, make the book form firm, not loose and deform and enhance the appearance grade. Caliper paper is commonly used for circular endorsers with a thickness of more than 30mm (300mm or less can be used).

1 cheese paper materials and specifications

The package paper is generally made of 100g/m2 kraft paper. This paper has good tensile strength, high strength and firmness. Its length is 4mm shorter than the book block, and its width is twice the back arc length plus 5mm sticky mouth (Figure 9-1).

Figure 9-1

2 cheese paste

First of all, cut the cut sticky paper with sticky adhesive and make it into a cylindrical shape (adhesive interface on one side), and then stick the adhesive interface on the back of the back of the book, and then stick the adhesive on the side of the back of the book. Stick firmly (Figure 9-2).

Fig. 9-2 A: Cloth or flower head rope B: Book block C: Book back cloth D: Book back paper E: Cheese paper

After the cheese paper sticks, the whole process of book block modeling is completed. When the book block is assembled with the book case, the exposed side of the packaged paper is coated with an adhesive and the middle diameter cardboard of the book case is glued to complete the processing of the packaged paper.

Fourth, luxury hardcover book shell processing technology

The luxury hardcover book shell processing mainly includes the cutting of the cardboard edge, the surface of the microdermabrasion, the padding of the padding, the hot red gold inlaying, and the making of bamboo.

1. Cut cardboard edge operation and requirements

In order to increase the artistic feeling of the book case, cardboard with a thickness of more than 3 mm can be cut in the front lip.

During the operation, the cardboard is cut to the front edge (more than 1-2mm) according to the specified size, and then cut into various patterns by knife cutting (Figure 10 shows four patterns). When the edge is cut, it is required that the knife is not skewed, the corners are smooth and the size of the cardboard is guaranteed.

Figure 10 various styles of cardboard cut edges

2. Microdermabrasion operation and requirements

When leather is used as a cover, due to the thick leather thickness, when the shell is wrapped, there will be a convex edge on the cover, resulting in an uneven mark on the book block, so the edge of the cover must be edging.

During operation, the skin is cut to a certain standard and hard-sanded paper is used to cut the edges to a thin edge with a certain slope. The width of the edging is generally about 10mm.

3. Surface operations and requirements

Luxurious covers often use silk fabrics such as satin. In order to ensure that the fabric pattern does not deform, shrink, or handle the fabric, the fabric cover must be properly processed before processing. Generally, the large-format fabric cover is first combined with the paper, or the method of impregnating the resin with the cover is used to shrink and shape the product, and then paste the shell.

There are two ways to make flour: one is self-tanning, which is to apply large-size (generally full-open) paper (weight can be large or small, depending on the thickness needs) coated with adhesive (preferably with gluten slurry) Hang up on the paper board, dampen the fabric, and apply it to the adhesive-coated paper. Immediately, it is smoothed and glued. After drying, remove the flat clothing and then open the cover; the other type is machine tamping, ie, processing by the glutinous sticky factory. The machine is viscous, roller-type and flat type, and the large-volume type is roller type. The roller type is used to roll and stick and compound the roll material; the flat type is resin glue material, and it is flat and flat.

Operation requires: a. The selected adhesive viscosity is suitable, evenly applied, no spill, no flowers, to ensure that the fabric after the flat is smooth and soft, no bubble wrinkles; b. The paper size and fabric composite size is correct, does not expose the fabric edge, No curling.

4. Bamboo operation and requirements

The bamboo section refers to the bulging of the back of the book shell as the shape of the bamboo shape. The effect of bamboo is to make the book beautiful and to protect the waist from being worn.

There are two ways to make bamboo knots. One is to paste the shells, that is, to squeeze the bamboo knots after sticking on the middle diameter cardboard; the other is to temporarily fix a medium diameter cardboard on the back of the book block. After sticking the bamboo knots, cover the knots again (Figure 11-1). No matter which method is used, the book cover that sticks the bamboo knots must be squeezed with a special tool on the bamboo joint of the middle waist so that the bamboo knots will protrude and the solid shape will be packaged. The bamboo soft cover marks the length of the cut (ie, the length of the head and foot is longer) than the average hardcover size is about 7mm, leaving room for crowding and slightly protruding above and below the middle waist. After the shell is finished, the upper and lower sides of the box will be buckled inwards to cover the plug cloth or flower head line. This way, after processing, the book appears to be different from the general hardcover book, which is quite artistic (Figure 11). -2).

Fig. 11-1 A: Slub B: Rift C: Wrapped Book Shell E: Medium Diameter Cardboard

Figure 11-2: Bamboo on the back of a book

5. Sticky paper

Enclosed paper refers to the paper that is stuck in the edge of the cover of the bookcase. The function is to cover the problem that the thickness of the cover is high due to the large thickness of the cover material. The mark of the book block can be flattened and flattened. There are two specifications of the envelope paper, one is the specification of the linerless material, and its length is the length of the bookcase minus the width of the two envelopes plus the thickness of two paperboards, and the width is the width of the paperboard minus the width of one edging. A sheet of cardboard is thick; the other is a lined stock specification with the same length as the previous one, the width being the width of the board minus one edge and one line width plus one board thickness. The thickness of the cover paper should be determined depending on the thickness of the cover material. Generally, more offset paper is used.

There are two ways to operate, one is to apply a thin layer of adhesive to a certain size of the closed envelope paper, and stick it in the edge of the envelope; the other is not to paste The shell, leaving room for wrapping on the cut cardboard only, sticking the adhesive to the cardboard and sticking it to the cardboard.

Adhesive sealing paper requirements: a. Adhesive viscosity is appropriate, less smear and average, no spill does not spend; b. sealing paper sticky is not skewed, no wrinkle, no bubbles; c. must be closed after the paper is sticky Press flat to ensure it is flat and firm.