Manufacturers who currently process hardcover books generally have shell machines and hardcover linkage production lines. However, when small-scale enterprises produce small-volume hardcover books, they cannot invest huge sums of money to automate production. When receiving small-volume orders from tenders and classmates, they can only rely on existing equipment for processing. Due to the limitations of processing conditions, they can only be strictly controlled in each process according to quality standards. Products that do not meet quality standards and requirements must Can not flow down the process, and strictly control on-site quality management. The following writer talks about the points of processing hardcover books.
Raw material control
1. Use of cardboard
Should be selected for hardcover books and albums produced by the book shell cardboard, and storage time should reach more than six months. This paperboard has a small shrinkage and can reduce the possibility of deformation during the manufacture of the book case. When cutting material in the paper cutter, add 2mm margin to each side of the finished product size. After hair samples are cut out, the beveled edges are processed into light edges to eliminate the oblique edges generated by the single-knife cutting and reduce the edge after the edge is cut. Bubbles and edging are skewed. The length of the cardboard is 6mm long for the book block and 2mm wide for the book block.
2. Use of medium diameter paper
Generally choose 80 ~ 240g/m2 paper. If the paper is cut in the longitudinal direction and it is the length of the medium-diameter paper, it will prevent the back of the book from being uneven after it shrinks. The length of the medium-diameter paper and the length of the book cover are the same, and the width is the length of the back of the book after the round ridge is rounded (the endorsement is the width of the book plus 2 times the thickness of the paperboard).
3. Use of auxiliary materials
(1) The plug cloth is first sizing with starch. The position of the adhesive plug should be correct and not be skewed; the edges and edges of the plug should be exposed on the outer edge of the upper and lower end of the book block, and be parallel to the incision; after the paste is straight, it must be firmly bonded and the margins are the same. Its length is 1mm wider than the back of the book.
(2) gauze sizing gauze. Its length is 22-26mm shorter than the book block. The width is 40mm thicker than the book block.
(3) Book back paper is generally made of offset paper of 100 to 120 g/m2 so that the longitudinal stripes run along the upper and lower sides of the back of the book to facilitate segmentation.
(4) The book core tape uses a 5-8mm wide silk fabric tape. The diagonal length of the book block is a long ribbon, which is generally 15mm on the back of the book.
4. Use of cover material
The customer's requirement for the use of all kinds of paint-paper fabrics is: the length is 30mm, and the width is 2 times the width of the paperboard plus the width of the medium-diameter paper plus 44mm (the edge size is 15mm). After the materials are prepared, the stampings are used to prepare the shells after the stamping, so as to prevent the cardboard from unevenness due to brushing after the shells are made, resulting in the shortage of the stamps, wild gold and brightness.
Book block processing control
The structure of various book blocks is different, and the method and procedure for modeling are not exactly the same. However, the basic processing such as back brushing, sticky gauze, adhesive plug cloth, and sticky paper backing are basically the same. After the first few processes, it enters the flattening process.
Flatten
Because the book block is pressed, it can eliminate stress, close the needle and make the back of the book flat and rectangular. Press the root of the book block tightly and fold the edge of the folded product book block to prevent steps after the book is finished. And each book is inspected at this time, with multiple posts and less posts, and the responsibility mark of the test is written on the back of the book so that the book block is free from mistakes. During the flattening, the book block after the sewing line is banged, laid flat, placed properly, and the pressure is appropriate, so that the book block has a consistent degree of solidity, that is, the thickness of the book back is uniform, and the phenomenon of shrinking, stressing, and rolling is prevented.
2. The first brush
After the book block is bundled, it is brushed with thin adhesive material on the back of the book to form a flexible film, so that the book block is basically shaped so that no misalignment occurs in the next process, and the first brushing is completed. .
Raw material control
1. Use of cardboard
Should be selected for hardcover books and albums produced by the book shell cardboard, and storage time should reach more than six months. This paperboard has a small shrinkage and can reduce the possibility of deformation during the manufacture of the book case. When cutting material in the paper cutter, add 2mm margin to each side of the finished product size. After hair samples are cut out, the beveled edges are processed into light edges to eliminate the oblique edges generated by the single-knife cutting and reduce the edge after the edge is cut. Bubbles and edging are skewed. The length of the cardboard is 6mm long for the book block and 2mm wide for the book block.
2. Use of medium diameter paper
Generally choose 80 ~ 240g/m2 paper. If the paper is cut in the longitudinal direction and it is the length of the medium-diameter paper, it will prevent the back of the book from being uneven after it shrinks. The length of the medium-diameter paper and the length of the book cover are the same, and the width is the length of the back of the book after the round ridge is rounded (the endorsement is the width of the book plus 2 times the thickness of the paperboard).
3. Use of auxiliary materials
(1) The plug cloth is first sizing with starch. The position of the adhesive plug should be correct and not be skewed; the edges and edges of the plug should be exposed on the outer edge of the upper and lower end of the book block, and be parallel to the incision; after the paste is straight, it must be firmly bonded and the margins are the same. Its length is 1mm wider than the back of the book.
(2) gauze sizing gauze. Its length is 22-26mm shorter than the book block. The width is 40mm thicker than the book block.
(3) Book back paper is generally made of offset paper of 100 to 120 g/m2 so that the longitudinal stripes run along the upper and lower sides of the back of the book to facilitate segmentation.
(4) The book core tape uses a 5-8mm wide silk fabric tape. The diagonal length of the book block is a long ribbon, which is generally 15mm on the back of the book.
4. Use of cover material
The customer's requirement for the use of all kinds of paint-paper fabrics is: the length is 30mm, and the width is 2 times the width of the paperboard plus the width of the medium-diameter paper plus 44mm (the edge size is 15mm). After the materials are prepared, the stampings are used to prepare the shells after the stamping, so as to prevent the cardboard from unevenness due to brushing after the shells are made, resulting in the shortage of the stamps, wild gold and brightness.
Book block processing control
The structure of various book blocks is different, and the method and procedure for modeling are not exactly the same. However, the basic processing such as back brushing, sticky gauze, adhesive plug cloth, and sticky paper backing are basically the same. After the first few processes, it enters the flattening process.
Flatten
Because the book block is pressed, it can eliminate stress, close the needle and make the back of the book flat and rectangular. Press the root of the book block tightly and fold the edge of the folded product book block to prevent steps after the book is finished. And each book is inspected at this time, with multiple posts and less posts, and the responsibility mark of the test is written on the back of the book so that the book block is free from mistakes. During the flattening, the book block after the sewing line is banged, laid flat, placed properly, and the pressure is appropriate, so that the book block has a consistent degree of solidity, that is, the thickness of the book back is uniform, and the phenomenon of shrinking, stressing, and rolling is prevented.
2. The first brush
After the book block is bundled, it is brushed with thin adhesive material on the back of the book to form a flexible film, so that the book block is basically shaped so that no misalignment occurs in the next process, and the first brushing is completed. .
ZHEJIANG JIAHE BAMBOO TECHNOLOGY CO., LTD , https://www.zhuart-bamboo.com