unit 1 Papers and Boards Flashcards by lydia wilkinson

What is paper made from?

Cellulose fibres from plants

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What are the sources of Cellulose fibres?

flax, hemp, straw, cotton, bamboo, wood

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What does the best cellulose fibres come from?

Wood due too quality of the fibres length and strength.

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What goes into making paper?

chipped wood
acetic acid
fillers
brightening agent
lots of water

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How to get wood free pulp?

the solution is heated to 140 degrees which produces a fibrous liquid known as pulp. The water is filtered then reused.

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What are paper qualities?

Whiteness
Opacity
Strength
Absorbency
Finish
Cost

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What are the five ingredients of paper that can be tweaked?

source of cellulose fibres
fillers that smooth the finish
sizing agents
calendaring process
additional finishes

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What are sizing agents?

Chemicals added to the pulp to reduce absorbency

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What is internal sizing?

added to the pulp and affects papers quality and the papers ability to run smoothly through machines

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What is surface sizing?

added to improve strength, reduce absorbency and improves print ability

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What are the two main coating finishes

Clay
Polyethylene

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What does coated paper do?

reduce ink absorption

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What is uncoated paper?

not treated with any sealant and allows fast absorption of water or ink.

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What are the names of paper and board finishes?

Matte
Satin
Gloss
Felt
Textures

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What does a matte finish do?

smooth, dull in appearance and good for any high quality print job

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What does a satin finish do?

low reflective levels than gloss paper but more than matte paper

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What does a gloss finish do?

a shiny higher quality coated paper

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What does Felt, wove and velum finishes do?

smooth textures

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What is the elmendorf tear test?

It calculates how much force is used to CONTINUE a tear in sample

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What is another way to measure the strength of paper and boards?

subject them to an impact force

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What is die cutting?

paper and board can be cut, scored, perforated and creased in one action with a die cutter

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How does a die cutter work?

metal rules or blades are embedded in the desired shape in the laser cut plywood form

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What is creasing?

Make a line that is permanently present after material has been creased

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What is folding?

to create a shape

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What is scoring?

the same process as cutting but the blade doesn't go all the way through the material

What are perforations?

Small cuts in paper to allow for portions to be folded or torn off with accuracy

What are the tools used for cutting and scoring?

Safety rule cutting mat scalpel for cutting blunt edge knife

What is the process used to make shapes in, or out of cards and boards called?

die cutting

What are the advantages of using die cutting?

quicker per item, cheap running costs, sharper cuts, all the same consistency

How is papers weight measured?

grams per square meter

What are paper based materials that weigh more that 220gsm classified as?

boards

What is board measured in?

microns

What are the three series of paper sizes?

A, B or C

What is A series of paper used for?

standard trimmed paper stock

What are the B series used for?

alternative sizes often used in industry

What are the C series used for?

envelopes

What are commercial untrimmed sizes of paper?

RA series being 105% of A series SAR series being 115% of A series

What is corrugated card?

one or two flat outer layers, and a corrugated medium

What are the properties of corrugated card?

flexible, good strength Shock absorbing, light weight, good for packing

What are the different corrugated or fluted boards like?

single wall: 3000 - 5000 double wall 6000 - 10000 triple wall 12000 - 15000

What makes a good package?

The outer layer can be printed on Readily available in different sizes fully recyclable cheap

What is tracing paper?

good for overlaying or transferring images relatively hard and strong usually around 40-120 acid is used to treat paper

What are the properties of layout paper?

off white colour not as strong as tracing good for tracing ideas often used in a sketch pad takes pencil well

What are the properties of bleed proof paper?

It does not allow ink or solvent based pens to bleed 70gsm

What are the properties of cartridge paper?

takes various drawing media well slightly textured finish

What are the properties of water colour paper?

Absorbent with stand large amounts of water matte finish

What are the three types of photo paper?

Inkjet paper Laser paper Photographic paper

What are the properties of inkjet paper?

has non-porous surface so image stays sharp

What are the properties of laser paper?

has surface coating designed to permit the plastic particles in toner to melt and bond onto the surface of the paper

What are the photographic paper properties?

has a photosensitive coating, reacts to light and the image develops over short time

What are mount board properties?

structurally strong available in wide range of colours normally has a white core good making final models

What are bleached card properties?

Used for packaging and greeting cards holds print well

What are duplex board properties?

The top layer is normally white It is food safe it folds cuts and prints well

What are the properties of foil backed and laminated card?

Foil create and impermeable layer of protection Polyethylene is uses as a food safe liner

What are Tetra-Paks six layers?

74% paperboard 22% polyethylene 4% aluminium foil

What are the benefits of Tetra-Pak?

Perfect for storage of liquid foods and beverages Foil layer insulates and protects Contents remain sterile for a long time

What are the properties metal effect card?

matte and shiny gloss tones laminated versions

What are the properties of molded paper pulp?

Economical limited print ability

List the suitability of producing vehicle signage using a digital printed image

Full colour Large format Costly Limited UV resistance

List the suitability of producing vehicle signage using a plotter cut vinyl

Limited range of colours Only simple text good resistance to UV light Can be scaled without loosing quality

What is the construction of a foam board?

made with a polystyrene foam core and a kraft paper facing liners.

Why is foam board is a suitable material for the manufacture of an architectural model

lightweight material easily cut

Discuss the environmental issues of using embossing as a chosen print finish

can be easily recycled can be on FSC certified papers, card

Describe the process of die cutting

a steel cutter blades is folded and shaped into the profile or shape

The environmental impact of cardboard

100% recycled material Trees used for corrugated cardboard Water and air pollution is greater when producing cardboard

unit 1 Papers and Boards Flashcards

(66 cards)