Nama : Rachman Affandi
Study : Graphic art 3A
A)Answer the
question below referring to the reading text above!
1. What is the title of reading text
above?
2. How do you knowabout rubber or
photopolymer in this printing method?
3. How many rollers involved in this
printing technology?
4. What is the function of doctor blade
in this printing system?
5. Who is the inventor of that printing
technology?
Answer
1. Flexographic printing
2. Rubber or photopolymer are main
material to make plates in flexographic printing method
3. There are three rollers (a meter
roll, a roller with the plate attached, impression roll)
4. Doctor blade function is scraped ink
5. Inventor is bibby (1890 in England)
B) Sentence
Building
Please
describe in descriptive writing the picture below based on the 5W1H question
and answer(what,when,where,why,who and how)
WHAT :
that is the offset printing methode, offset is a undely use printing,
technique, where the image inked and transpired to rubber sheet cylinder and
than to the surface to be printed.
WHEN :
we use offset printing when we wont print , with small order or high order
because if you order just a fiew,you can use sheeted offset printing.but if the
order high you can make web offet
WHERE :
the offset machine are placed in a small or big room, dependent on need like a
one color, two color or four color.
WHY : we
used offset printing because that’s the most stabil printing technique which we
can get quick result aand spend a little money.
WHO : is
the inventor of the offset printing?
HOW : to
make print good?
C. Know
ledge of printing process
2. A
print shop does an unchanged repeat print of a sheet-fed job several months
after the original run, although the same press is used for printing and the
same output data are used for imaging, color repduction is different from the
original job, name at leats 5 possible causes for the differences in color,
what could have changed in the process.
Answer
·
Any
equipment and respond to color with different languages
·
Any
equipmentof different color space
·
Effect
to room light
·
Perception
of different color each person
3. What
information can you determine from the ink acceptance result ? Name three
factors that have an effect on ink acceptance?
Answer
·
Ink
viscosity level ( the viscosity of ink to low or high can effect to ink flow in the machine)
·
Dampening
system unit (this control the acid can make the ink patched to the other place
before come to surface printing media
·
Roll control unit (because if the setting of
roll unit is to high can make ink cant come to plate cylinder
4. PDF
data are very well known for data exchange in graphic industry, name three
benefits by using PDF technology ! what is meaning of PDF?
Answer
PDF
(Portable Data Format) is FORMAT UNIVERSAL and can save image,font dan vector
in one file
7.explain briefly the different
values you can measure with a densitometer and a spectrophotometer in printing
·
spectrophotometer
is an instrument that can measure the absolute value of spectral reflectance
(reflectivity) and transmission and color objects
·
densitometer
is a device that can measure light levels and the ratio (density) which is
reflected by the object
8.
Assign the following products in the
left side to the printing process in the right side (multiply answers are
possiblefor some products)
|
No
|
Products
|
answers
|
|
1.
|
Newspaper
|
Web offset (heat set)
|
|
2.
|
Magazines
|
Web offset (cold set)
|
|
3.
|
Can (food)
|
gravures
|
|
4.
|
Art publication
|
Sheetfed printing
|
|
5.
|
Folded boxes for cosmetics
|
Gravure / flexographic printing
|
|
6.
|
Books/novel
|
Sheetfed printing
|
|
7.
|
drink boxes (composite material)
|
gravure
|
|
8.
|
Flags
|
Screen printing
|
|
9,
|
Cigarette boxes
|
Sheetfed printing
|
|
10.
|
Display boxes
|
Sheetfed printing
|
|
11.
|
Advertising brochures (flyers)
|
Sheetfed printing
|
|
12.
|
Advertising insert for magazines
|
Web offset (cold set)
|
|
13.
|
Shrink label
|
Screen printing
|
|
14.
|
Spray cans
|
gravure
|
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