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n. Greetings card bag - Crystal clear display bags manufactured from high clarity polypropylene film (polypropylene is similar in appearance to cellophane but is a plastic not a paper based material).
n. Polypropylene - A tough, lightweight rigid plastic made by the polymerization of high-purity propylene gas in the presence of an organometallic catalyst at relatively low pressures and temperatures.
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Shopping > Packaging > greetings card bags
Shopping > Packaging > greetings card bags
Shopping > Packaging > greetings card bags
Shopping > Packaging > greetings card bags
Shopping > Packaging > greetings card bags > presentation and retail bags
shopping > packaging > greetings card bags > discount greetings card bags
Shopping > Packaging > greetings card bags > presentation and retail bagsGreeting cards can be traced back as early as the ancient Chinese which used to exchange messages to celebrate the New Year. The Egyptians also exchanged greetings but in form of papyrus scrolls. During the 14th century it is know that the Germans have created New Year's greetings engraved in wood and handmade paper Valentines were being exchanged in many parts of Europe.
It was only in the 18th century that greeting cards ceased to be an expensive hand-made gift to a popular and economical way of send friends and family your wishes and messages. When exchanging presents it could be said that the gift card is just as important than a present and cannot be left behind.
Greeting cards are printed on quality paper and are normally rectangular in shape and folded in half. Manufactured with a printed message inside but also sold as blank so you can write your won message. A picture is also printed on the front side of the greeting card with designs for birthday cards, Christmas cards, New Year's cards, wedding cards pretty much any event. In recent days greeting cards can also be sent via the internet and are known as an E-Card
Polypropylene is one of those rather versatile polymers out there. It serves double duty, both as a plastic and as a fiber. As a plastic it's used to make things like dishwasher-safe food containers. It can do this because it doesn't melt below 160oC, or 320oF. Polyethylene, a more common plastic, will anneal at around 100oC, which means that polyethylene dishes will warp in the dishwasher. As a fiber, polypropylene is used to make indoor-outdoor carpeting, the kind that you always find around swimming pools and miniature golf courses. It works well for outdoor carpet because it is easy to make coloured polypropylene, and because polypropylene doesn't absorb water, like nylon does.
Polypropylene is a thermoplastic polymer, made by the chemical industry and used in a wide variety of applications, including food packaging, textiles, plastic parts and reusable containers of various types, thermal pants and shirts made for the military, laboratory equipment, loudspeakers, automotive components, and polymer banknotes.
Most commercial polypropylene has an intermediate level of crystallinity between that of low density polyethylene (LDPE) and high density polyethylene (HDPE); its Young's modulus is also intermediate. Although it is less tough than HDPE and less flexible than LDPE, it is much less brittle than HDPE. This allows polypropylene to be used as a replacement for engineering plastics.
