did recycling important for the plastic 

recycling is very important, whether it's plastic or not. 

In response to the answer below, all plastics can be recycled. However due to the costs of the collection, sorting and recycling of them from householders, it isn't generally economically viable.

Whether or not most plastic can be recycled - most of it isn't. There are many many types and many mixtures. Use the link 'Plastics Recycling' on the left to find out more.