Didn’t your mother told you not to play with printer cartridges? I am glad that you have come to the right place for answers. First of all do not try to wash the jacket in water. That might worsen the situation. There are some ink removing products which are easily available here like: ink removing cloths, ink removing liquids. So don’t worry just go through this link to choose one which best suits you.
http://www.printcountry.com/printer_...l_products.htm