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PDF FILE -
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| PDF FILE - VARNISHING AND UV VARNISHING - BOX LEARNING EXERCISE |
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VARNISHING
Fine varnish can be sprayed on to the surface of card. When dry this
gives a gloss finish and helps protect the printing underneath. The
printing and colour work must be completed before this process takes
place. Also, folding a package takes place after the varnish has been
applied.
Different types of varnish are available. The most popular are oil and
water based varnishes. In either case, the varnish takes at least two
hours to dry. This may be a disadvantage especially if the card is being
used for a package - as it means it can not be folded straight away. |
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ULTRA VIOLET VARNISHES
Special varnishes dry almost straight away if they are exposed to ultra
violet light. (UV light). The varnish is sprayed on to the paper / card
in the same way as other varnishes. However, after spraying the card
passes underneath UV lights which dries the varnish almost
instantaneously.
One disadvantage is that this type of machinery is expensive to
purchase. However, it produces an excellent gloss finish to the card /
paper. |
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Varnish is applied to card packaging in order to give
it a gloss finish. It offers little protecting to the package and
usually applied to give a ‘shine’ to the card. Varnish is also applied
to pages of magazines so that they also have a gloss finish and gives
the paper a quality feel. |
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QUESTIONS:
1. Draw a diagram to represent the
application of varnish to card.
2. Explain why varnishing is applied
to card and paper. |
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CLICK HERE FOR
DRAWING AND SHADING TECHNIQUES INDEX PAGE |
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