Final Exam Flashcards

1
Q

Relief Printing

A
  • Flexographic or letterpress
  • raised rubber, plastic, wood or metal
  • Plastic Bags and six uses (separate card)
  • Johann Guttenberg, 1450
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2
Q

Intaglio Printing

A
  • Roto Gravure
  • Sunken Cylinder
  • More than one million impressions, high quality magazines, packaging, fake wood
  • Karl Kleach, 1875
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3
Q

Screen Printing

A
  • Silk Screen/Seriography
  • Stencil
  • T-shirts, irregularly shaped objects
  • Created in the orient, 1300’s
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4
Q

Lithographic Printing

A
  • Offset/”Stone writing”
  • Uses a flat plate that one part like H2O and ink
  • Business cards, memo pads, textbooks
  • Alois Senefelder, 1798
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5
Q

Electrostatic

A
  • Digital/non-impact
  • Drum that is positively charged, negatively charged ink
  • Xerox, quick copy
  • Chester Carlson, 1937
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6
Q

Printer’s Measurements

A

72 Point = 1 Inch
6 Picas = 1 Inch
12 points = 1 Pica

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7
Q

Uses for Printer’s Measurements

A

Inches are for page dimensions
Picas are for line length
Points are for type size

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8
Q

Film Structure

A

1) Anti-halationon Backing
2) Base + order of chemical development
3) Emulsion Silver Halides

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9
Q

Emulsion + Order of Chemical Development

A
  1. Developer (Base)
  2. Step Bath (Acid)
  3. Fix (Hardens)
  4. Wash at 68F or 20C
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10
Q

VDP

A

Variable Data Printing

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11
Q

Line Copy

A

Composed entirely of lines

ex. sketches

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12
Q

Continuous Tone Copy

A

Consists of images in a variety of tones

ex. photograph

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13
Q

Halftone Copy

A

A reproduction of continuous tone color in magazine or book

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14
Q

Halftone Screen

A

Uses dpi, lpi, ppi. For continuous color

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15
Q

Tint Screen

A

A tint that breaks solid areas into uniform series of dots. % of dotes for line copy.

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16
Q

Lithographic Plates

A

Consist of hydrophilic (accepts water) and hydrophobic areas (Repels water and accepts ink)

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17
Q

CTP plates

A

Computer to Plate (used in lab for notepads)

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18
Q

XXX

A

Gripper Margin

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19
Q

Press Overview

A

1) Feed
2) Registration
3) Print Unit
4) Delivery

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20
Q

Types of Cylinders of Offset Presses

A

1) Plate: Right reading
2) Blanket: soft rubber, wrong reading
3) Impression: Metal

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21
Q

Principle of Offset

A

Water and ink don’t mix

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22
Q

Duplicators

A

Any offset lithographic machine that can feed a maximum of 11x17 inches and minimum of 3x5. They can print 5,000 to 10,000 impressions per hour.

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23
Q

True Press

A

Is an 4-unit press and can feed a sheet size of 54x77 and a minimum sheet size of 11x17. Much larger unit

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24
Q

pH Scale

A

Metric scale that shows how acidic (14) or alkaline (0, vinegar) )substance are. It stand for the potential of hydrogen.

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25
Q

Successive Feeder (Gap)

A

Mechanical fingers pick up one sheet from the top of the pile and direct it into the registration unit

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26
Q

Stream Feeder (Overlap)

A

Overlaps sheets on the registration board and slows the rate of sheet movement significantly

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27
Q

Delivery Units

A

Gravity delivery: is the simpler or less dependable of the two designs

Chan Gripper Delivery: the most popular delivery unit; the press sheet is pulled through the printing and delivery unit to a different set of grippers on the chain of the delivery unit.

28
Q

Substrate

A

Any base material that receives an image

29
Q

Ink

A

Is pigments dispersed in a vehicle with additives

30
Q

Basic Ink Properties

A

1) Viscosity: Body of ink
2) Tack: Stickiness
3) Drying Quality

31
Q

Viscosity

A

High: Thick and Heavy, screen and offset

Low: light and fluid, flexographic and gravure

32
Q

Drying Quality

A

Hardens by:

1) Oxidation: combine with oxygen
2) Penetration: absorbed into the substrate
3) Evaporation: Most of the ink evaporates leaving emulsions onto the paper

33
Q

Rheology

A

Science of Flow

34
Q

Three Main Ingredients

A

1) Pigments: Black or White
2) Vehicles: Grouped by how they dry
3) Additives: Characteristics-wax, scuffing, dry
i. e: reducers, driers, binding varnish, waxes, cornstarch, anti-skinning agents

35
Q

Thixotropic Inks

A

Rubber based ink, heavy and stiff in can, fluid on press

36
Q

Trapping Inks

A

refers to the degree of ink transfer onto wet and dry ink films already on the substrate

37
Q

Transparent

A

Pigments that allow light to pass through, four process colors

38
Q

Opaque

A

Light can’t pass through

39
Q

PMS

A

Pantone Matching System: a universal method for specifying and mixing colors.

40
Q

Two Major Processes in Making Paper

A

Pulp Manufacturing, Mate paper

41
Q

Slurry

A

Cellulose fibers suspended in water

42
Q

Types of woods used to make paper

A

Softwoods: Coniferous

Hardwoods: Deciduous

43
Q

Fourdrinier Machine

A

1) Head box: Slurry is prepared in large mixing vat
2) Mix is poured onto a moving mesh screen
3) Drying End

44
Q

Grain

A

Cellulose fibers align in direction of screen movement

- Always fold with the grain if possible

45
Q

How to Weigh Paper

A

Substance weight and basic weight = weight of 500 sheets of paper in the parent size.

500 sheets=1 ream
M Weight = 1,000 sheets
C Weight=100 sheets

46
Q

Basic Size

A

Coarse paper: Industrial (corrugated)

Fine paper: Printing

Largest in the family of fine papers: book or offset

Writing/Cover/Bristol/Other: ???????????

47
Q

C1S

A

coated one side

48
Q

C2S

A

coated two side

49
Q

coated vs. uncoated paper

A

claylike material fills porous surface vs. open porus newsprint

50
Q

Ts’ai Lun

A

hand made modern made paper in AD 105 until 1798 automated Fourdrinier

51
Q

Uncoated paper

A

newsprint, ground wood

52
Q

Screen Printing

A

oldest form of printing originated in the orient

53
Q

Stencil

A

1) Hand-cut
2) Tush and glue
3) photographic

A- indirect: expose emulsion then put on mesh
B- direct: emulsion put directly on screen then exposed

54
Q

Screen Fabric

A

mono filment or multi filment

55
Q

How to squeegee

A

45 degree slant or angle drag

56
Q

2 color screen printing

A

Light color first

57
Q

Dimensionally Stable Screens

A

wood or metal

58
Q

Most Dangerous Area

A

Bindery

59
Q

Folding

A
  • Can be done parallel or right angle
  • Can be done by:
    1. Hand: bone
    2. Machine: knife
    3. Buckle: our lab
60
Q

Signature

A

a large single press sheet folded and trimmed to form a book.

61
Q

Bindings

A

1) Adhesive: (a. Padding b. Perfect c. Patent)
2) Side: (a. Staple/stitch/looseleaf b. comb: mechanical/wire c. side sewn
3) Saddle: (a. Wire stitch, b. self cover, c. case bound)

62
Q

Gravure Printing

A

jagged saw tooth edge to it

63
Q

Flexo Printing

A

halo edge

64
Q

Offset Printing

A

even edge

65
Q

Screen Printing

A

thick or varying ink deposit

66
Q

Digital Printing

A

splatter/spatter, even edge