Types And Properties Of Paper, Card And Boards Flashcards
How is paper made
Vegetable fibres in wood are carefully extracted to make a 95% water based pulp. This is then filtered to get the fibres and refined through rollers to achieve a basic form of paper
What are the factors of choosing a type of paper or card for a specific product
Price Finish Strength Brightness, how white it is Thickness
How can you give paper a smoother finish
Spray it with a coating such as China clay or chalk
How do change the absorbency of paper
Add a sizing agent which increases the ability to accept ink
What affect does laminating have
Laminating layers of thinner card to make a board can give it a whole range of properties such as thickness and strength
How is paper measured
In gsm, grams per square meter.
Up to 220 gsm, after that its considered card
How is card measured
Card is measured in microns, 1mm is 1000 microns
What is virgin paper
Paper that is new and Unrecycled. It is usually stronger and whiter than recycled paper
Why is virgin paper used for food products
Less likely to be contaminated with anything dangerous
Advantages of recycled paper
Better for environment, less deforestation
Energy saved as less raw materials need processing
Makes companies see more green, goods for public relations
What is corriflute
A plastic board with a fluted inside, it is strong and water resistant and can have vinyl stickers applied and can be printed on using flexography, unlike paper based board. Used for sale signs at houses
What is duplex
A foam based board with various finishes. Used for advertising by cinemas and shops
Why is carton board so useful
It’s strong so good for packaging, it can be cut, creased, folded and glues easily. It can also be printed using main printing processes and can have most finishes applied making it ideal for designers
What is cartonboard
A multilayer/ laminated material with at least 3 layers and usually has a white coating to make printing better
