CP.17 Finishing Operations Xi’an University of Technology Prof.Dr.Cao Congjun

CP.17 Finishing

OperationsXi’an University of Technology

Prof.Dr.Cao Congjun

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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.