Ink on Upholstery ? This can be a simple stain to get out or it can be the worst possible stain. It all depends upon the amount of ink. Typically there are two main types of ink stains. A line, usually caused by an accidental swiping of a pen across the surface of a fabric. The other type are blots and can be caused from either the dropping of a pen between cushions and left undetected for a period of time. This allows the tip of the pen to come in contact with the fabric and as a result ...