Luxury hardcover craft (3)
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5. Lock head operation and requirements
The lock flower head refers to the process of sewing the wire on the upper and lower ends of the book back with the three-sided book core to replace the plug cloth. Because the color of the rope used is generally two, it is called the lock head. The flower head locked with silk rope is durable, beautiful and novel, and can be matched with the books of Jinkou and Huakou. The operation is divided into the following points.
1 Before the operation, the 1.5-2mm thick cardboard is cut into square slats, the length of which is longer than the back of the book or the width of the back of the book is about 10mm, which is used as the rib of the lock head (like the role of the line edge in the plug cloth). Then put the wire with a wire diameter of 1-1.5mm and put it on the needle for use.
2 When operating, firstly, the book block after the rounded ridge (or square back) is erected, the head or the foot cut is facing upward, and then the flower head bone (cardboard strip) is centered and placed on the cut and the back of the book. In the position, the ribs and slabs are flush with the back of the book, and then the hand is held by the hand and the other hand is locked with the needle of the wire rope.
3 When locking the flower head, take the needle from the first post of the book block, and wear it to the nearest pinhole of the lock stitch, tie the rope, and then tie the silk thread of another color (without the needle) and the needle thread. The rope and the cardboard strip lock are tightened and knotted. When each 5 or 6 posts are locked, the stitching stitches are tied once and firmly. When the last stitch is locked, the method of starting the head is still fastened to the staple line of the last book block, and a rope head of about 10 mm is left. After the flower head is locked, the excess rib strips at both ends are cut off. , complete the lock flower operation process
The operation of the lock flower head requires: a. The length of the wire rope used is optional as needed, but it is not allowed to have a joint on the flower head of a book; b. The wire rope of the wire rope is tight and uniform, and the flower head after the lock is flush and free of voids and ropes. Etc; c. The width and thickness of the ribs and slats are the same, and there is no overflow, indentation and disconnection at both ends after the lock.
After locking the book core of the flower head, the book backing and the backing paper are attached.
6. Sticky paper operation and requirements
Sticky cheese paper refers to the processing of sticking a cylindrical paper on the back of a book with a backing paper.
The function of the paper is to make the book block and the book cover firmly connected, increasing the strength of the book back, making the book firm, not loose and deforming and improving the appearance. Package paper is generally used for round endorsements with a thickness of 30mm or more (available below 300mm).
1 package paper materials and specifications
The paper is generally made of 100g/m2 kraft paper. This paper has good tensile strength, high strength and firm application. Its length is 4mm shorter than the book block, and the width is twice the length of the back of the book plus 5mm stick.
2 cheese paper paste
First, apply the adhesive to the adhesive label of the cut paper and make it into a cylindrical shape (adhesive interface on one side), and then apply the adhesive on the side of the adhesive interface and apply it on the top of the book back. ,cement.
A: Plug cloth or flower head rope B: Book block C: Book back cloth D: Book back paper E: cheese paper
After the cheese paper is glued, the whole process of the book core shape is completed. When the book core is combined with the book cover, the exposed side of the package paper is coated with an adhesive and adhered to the middle cover of the book cover to complete the processing of the package paper.
7. luxury hardcover book sealing process
The luxurious hardcover book cover processing mainly includes cutting cardboard edge, grinding leather surface, enamel pad waist, hot red gold inlay, and bamboo knot.
1. Cardboard edge operation and requirements
In order to increase the artistic sense of the book cover, in the case of cardboard with a thickness of 3mm or more, the shape of the edge can be cut at the front.
During operation, cut the cardboard to the front edge (more than 1-2mm) and then use a knife to grind it into various styles. When cutting the edge, the lower knife is required to be accurate and not skewed, the corners are smooth and the size of the cardboard is correct.
Various styles of chamfered cardboard
2. Microdermabrasion operation and requirements
When using the leather as the cover, due to the thick thickness of the dermis, when the paste is covered, the three sides of the cover will protrude, causing the book core to be uneven and printed, so the edging of the cover is performed.
During operation, the leather surface cut to a certain size is ground with hard sandpaper into a thin edge with a certain slope. The width of the edging is generally about 10 mm.
3. Kneading operation and requirements
The cover of the luxury suit is usually made of silk fabric such as satin. In order to ensure that the fabric pattern is not deformed, does not shrink, and is easy to process, the fabric cover must be properly treated before processing. Generally, the cover of the large-format fabric is first combined with the paper, or the resin is impregnated with the cover to make it shrink and set before the paste is sealed.
There are two ways to knead the dough: one is self-squeezing, which is about to apply large-size (usually full-open) paper (the weight can be large or small, according to the thickness), after applying the adhesive (preferably with gluten) Hang on the paste board, moisten the fabric and then apply it to the paper with the adhesive, and immediately smooth it. After drying, remove the flattening garment and then carry out the opening of the cover; the other is to use the machine to glue, that is, to be processed by the adhesive factory. The machine is viscous and split-rolled and flat. The large-volume type is rolled, the roll type is made of roll material, and the flat type is made of resin glue.
Operation requirements: a. The viscosity of the selected adhesive is suitable, uniform application, no spillage, no need to ensure that the fabric after the wart is flat and soft, no bubble wrinkles; b. The paper size and fabric composite size is correct, no fabric edge, Do not curl.
4. Do bamboo operation and requirements
The bamboo knot refers to the shape of the bamboo-shaped shape of the waist back of the book envelope. The role of the bamboo knot is to make the book beautiful and generous, and to protect the waist of the book from being worn.
There are two ways to make bamboo joints. One is made in the case of paste, that is, the shell is extruded after the knot is made on the medium-diameter cardboard; the other is to temporarily fix a medium-sized cardboard on the back of the book block. After sticking the bamboo knot, the cover will be squeezed out. No matter which method is used, the book cover of the stick-baked bamboo will be extruded on the bamboo section of the middle waist with a special tool to make the bamboo stick protruding, and the shape can be fixed before the shell can be wrapped. The soft cover of the bamboo knot indicates that the length (that is, the length of the head and the foot) should be slightly more than 7mm than the general hardcover size, leaving room for the squeezing section and slightly protruding at the upper and lower sides of the middle waist. Some, after the shell is finished, the upper and lower sides of the protrusion are fastened to the plug cloth or the flower head line, so that the processed book book looks different from the general hardcover book from the appearance, and has a sense of art.
A: Bamboo B: Middle seam C: Covered book case E: Medium diameter cardboard
5. Sticky paper
The seal paper refers to the paper stuck in the edge of the book cover. The function is to cover the problem that the edge of the cover is highly convex due to the large thickness of the cover material. The mark of the book core can be flattened to make the book core flat. There are two kinds of specifications for the seal paper. One is the unlined root specification. The size is longer than the length of the book case minus two sides and two sheets of cardboard. The width is the width of the cardboard minus one width of the package. One piece of cardboard is thick; the other is a lining of the same size, the length of which is the same as the previous one, the width is the width of the cardboard minus one hem and one lining width plus one cardboard thickness. The thickness of the cover paper should be determined according to the thickness of the cover soft material. Generally, more offset paper is used.
There are two ways to operate. One is to apply a thin layer of adhesive to the sealed paper cut according to a certain specification, and then stick it in the edge of the paste. The other is not to paste. The shell only leaves room for edging on the cut cardboard, and the seal paper is coated with adhesive and adhered to the cardboard.
Adhesive seal paper requirements: a. Adhesive viscosity is appropriate, the application is small and uniform, no spillage; b. The seal paper is not skewed, wrinkle-free, no bubbles; c. Flatten to ensure it is flat and firm.