cp.17 finishing operations xi’an university of technology prof.dr.cao congjun
TRANSCRIPT
CP.17 Finishing
OperationsXi’an University of Technology
Prof.Dr.Cao Congjun
Q
Postpress: Finishing (postpress) is a segment of the print production flow in which the printed product is given its requested features of form and function.
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1. 简和策
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2. 卷轴装
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3. 经折装
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4. 旋风装
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5. 蝴蝶装
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6. 包背装
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7. 和合装
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8. 活页表头装
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9. 线装本
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10. 平装
11. 骑马装
12. 精装
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17.1 Process
Cutting folding Assembling
binding covering cutting
Book block process Book covering process
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1. Cutting ：
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Cutting forces on the blade with the swinging diagonal cut
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• Knife life:
The smaller the knife angle, the shorter the service
life of the knife, that is, the sharpness of the knife
quickly diminishes.
• Knife angle:
A soft cutting product requires a smaller knife
angle. Hard cutting material requires a larger knife
angle.
• Pressing force:
Great force is required for a soft cutting product.
Low force is required for a hard cutting product.
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2. Folding ： types of folded sheets
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• Folding machines• Folding machines
a. Knife folding
unit
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• Folding machines• Folding machines
b. Buckle folding unit
Knife shafts in a buckle plate folding unit
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Folded sheet
classification
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3. Assembling/Gathering ： Assembling is the production of a specific sequence of folded sheets, leaves, or webs into a loosely jointed block.
Basic principles for assembling signatures and leaves (individual sheets)
QStructure of a gatherer for single-layer blocks
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4. Binding
• Types of binding• Types of binding
Seam ：
Seamless ： perfect binding 无线装订
骑马订 saddle binding
三眼订Thread -Stitching
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A. Saddle bindingA. Saddle binding 成本低，速度快；不牢固；< 64 页的书、杂志、册子
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B. 铁丝订B. 铁丝订 书脊平整，成本低，效率高；订脚紧，不易翻阅；铁丝生锈造成脱页；< 100 页
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C. Thread -stitchingC. Thread -stitching
The thread-stitching of books is a block binding process where the connection of the inner sheet sections and the sheets to one another is primarily achieved by fabric threads.
Side-sewn binding
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Perfect binding Perfect binding
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Two-roller gluing unit
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5.Booking covering
6.cutting
7.QA & Packaging
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17.2 Edition binding
Book block process Cover process
Cover feeding
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17.2.1 Book block process
1. 裁切、折页、配贴、锁线订或无线胶订、切书
2. 压平：
3. 刷胶：书背刷胶、定型
4. 裁切：三面切书
5. 扒圆：将书芯加工成圆弧形 牢固书芯，便于阅读
6. 起脊：在书芯两面近书脊处压出凹痕。
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7. 刷胶、贴背（三粘）：
在书芯背上贴纱布、贴堵头布、贴书背纸。
• 刷胶、贴纱布• 刷胶、贴书签带和堵头布• 刷胶、贴书背纸
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17.2.2 Cover process
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17.2.3 Cover feeding
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17.3 packaging
Paper packaging
Foil packaging
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Books packaging
分摞、计数
包装线
码堆机
中间存储
集装箱
分发运输
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Paper packaging ： 80-120g/m2
Foil packaging ： PE 聚乙烯 / PVC 聚氯乙烯
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§17.4
Surface finishing
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Surface finishingSurface finishing
Glazing 上光 Waxing Coating Bronzing 烫金
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Homework
P435 Review questions 1,5,6,7,9,12.