It comes as part of a £40m investment in the Kennedy Way-based company and has been welcomed by Northern Ireland's political leaders as a major boost.First Minister Peter Robinson, DUP, said: "Today's £40m investment by Delta Print & Packaging creating 100 new jobs is good news for the local economy and reinforces the company's 30 year commitment to invest and re-invest in Belfast."Investment such as this helps Northern Ireland to meet the challenges we have set within our Economic Strategy - to improve Northern Ireland's economic competitiveness through export-led growth and to increase employment opportunities and prosperity for all."Sinn Féin deputy First Minister Martin McGuinness said: "This is a significant boost for our local manufacturing sector and for west Belfast. Delta Print & Packaging generate annual wages and salaries of £8m a year to the local economy and this announcement is good news for existing and potential employees and other local businesses."Delta designs and manufactures printed carton packaging primarily for the retail food, consumer electronics, household goods, dairy, pharmaceutical and food service sectors.The firm has already increased staff from 169 to 200 recently in preparation for the newly announced investment. Staff levels will then rise to 269.As well as creating new jobs, the investment will see the company extend its factory and install state-of-the-art machinery to enable it to increase capacity and efficiency.Terry Cross of Delta said: "We are making this major investment in response to opportunities to grow sales across a number of existing customer accounts, in particular with McDonalds, as well as acquiring new accounts."Invest NI's support has been vital in enabling us to invest in custom-built, high-technology plant and machinery, extend the factory at Kennedy Way and recruit and train 100 new staff including European Sales and Marketing Personnel, which will give us the infrastructure to take the company to the next level."