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Printing Processes.
Code: 205 |
Teaching Scheme
hrs/week |
Examination Scheme |
Theory |
Practical |
Theory
Marks |
Duration |
UT Marks |
Pr. Marks |
TW Marks |
2 |
6 |
80 |
4 hrs. |
20 |
30 |
20 |
Rationale:
This course aims at creating a foundation among entry-level students.
It introduces common concepts frequently used in the printing industry
such as image carrier, reproduction, photography, design, various
printing techniques and finishing processes. After completion of
this course, a student can understand the flow of a printing job,
its important raw materials as well as the merits of the processes
of any particular job.
| Lesson
No 1: Types of originals
Theory
|
Marks |
Hours |
| 1.1 |
Line drawing, Continuous tone, Reflection and Transmission
copy
|
2 |
1 |
1.2 |
Properties of light (Hue, Value, Chroma)
Additive & Subtractive theory with application.
|
4 |
2 |
1.3 |
Camera: - Horizontal camera, enlarger
Scanners: - Drum, Flatbed- Function & application.
Photo sensitive films: - Orthochromatic & panchromatic
films- structure
Chemicals: - Developer, stop bath and fixer- Function
|
6 |
3 |
Lesson No 2: Letter Press.
Theory.
|
Marks |
Hours |
| 2.1 |
Introduction to type alloy, properties of metal
|
2 |
1 |
2.2 |
Image carriers
a} Type set matter b} block: line and halftime.
|
2 |
1 |
2.3 |
Machines
a} Platen to Platen b} Platen to cylinder c} Cylinder to
cylinder
Brief idea of inking system.
|
6 |
2 |
2.4 |
Limitations of Process |
2 |
1 |
| Lesson
No 3: Litho offset image carriers.
Theory.
|
Marks |
Hours |
| 3.1 |
Plate making metals & need for graining.
|
3 |
1 |
| 3.2 |
Light sources, effect of exposure
|
3 |
1 |
| 3.3 |
Types of plates- Wipe on, deep etch, P.S. plate-negative
& positive working
|
4 |
2 |
| 3.4 |
Plate making materials, chemicals, whirler,
printing down frame |
2 |
1 |
| Lesson
No 4: Lithographic offset machines
Theory.
|
Marks |
Hours |
| 4.1 |
Sheet fed machine units- feeding, inking, damping, printing
& delivery unit.
Definition of perfecting
|
5 |
2 |
4.2 |
Web machine- Difference between sheet fed &web fed.
Configuration-Blanket to Blanket, Common impression cylinder,
Stack, Inline
|
5 |
2 |
4.3 |
Limitations of offset process.
Waterless offset concept.
|
2 |
1 |
| Lesson
No 5: Screen-printing.
Theory.
|
Marks |
Hours |
| 5.1 |
Introduction- cloth, clamp, screen stretching, squeegee,
off contact.
|
2 |
1 |
| 5.2 |
Stencil- Direct, indirect
Screen printing- Manual operation.
|
2 |
1 |
5.3 |
Applications and limitations.
|
2 |
1 |
| Lesson
No 6: Flexography
Theory.
|
Marks |
Hours |
| 6.1 |
Machine parts, working.
|
3 |
1 |
| 5.2 |
Machine types- Inline, stack, and common impression cylinder
|
2 |
1 |
5.3 |
Applications
|
1 |
1 |
| Lesson
No 7: Gravure.
Theory.
|
Marks |
Hours |
| 7.1 |
Machine parts, working.
|
2 |
1 |
| 5.2 |
Cylinder preparation by electromechanical engraving
|
3 |
1 |
5.3 |
Applications
|
1 |
-- |
| Lesson
No 8: Non-impact printing
Theory.
|
Marks |
Hours |
| 8.1 |
Xerography & inkjet.
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4 |
2 |
| Lesson
No 9: Binding
Theory.
|
Marks |
Hours |
| 9.1 |
Different types of binding-side sewing/ stitching, centre
sewing/stitching,
Perfect binding.
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3 |
2 |
| Lesson
No 10 Paper
Theory.
|
Marks |
Hours |
| 10.1 |
Types, Properties.
|
3 |
1 |
| Lesson
No 11 Ink
Theory.
|
Marks |
Hours |
| 11.1 |
Types, ink ingredients.
|
4 |
2 |
Reference books:
1) Handbook of printing processes- GATF
2)
Modern printing processes
3)
Survey of printing processes- Krishnamurthy
4)
Printing Technology- Delmar publication
Practicals- Printing processes
Design – Roman letters, Letterhead preparation, Collection
of printed products.
Camera - Introduction to parts of process camera, chemicals.
Negative & positive making.
Composing – Introduction to type case, composition of
visiting card, letterhead
Block making – Demonstration of line & half tone
block.
Letterpress – Introduction to furniture, chase locking,
printing using single page forme & half tone block on light
platen machine.
Plate making – Introduction to plate making equipments,
chemicals & terms – lay out, gripper margin, centre
mark, cutting marks, trimming allowance, back registration. Preparation
of P.S. positive plate.
Offset – Introduction of magnifying glass, micrometer,
line, half tone & solid printing. Safety measures. Functions
of feeder, inking, dampening, printing, delivery. Plate fixing.
Printing of line job.
Screen-printing – Screen making materials & chemicals.
Registration methods.
. Binding – Brief idea of binding materials, tools, and
machines. Different styles of binding. Preparation of tear-off
pad.
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