 | Impact Printing | | Any printing system where a micro processor controlled drives a ribbon into contact with the print surface (dot matrix) or the print surface into contact with the ribbon drum printer). |
| Impregnated Paper | | A general term for soft porous papers which are to be or impregnated with solutions or compounds of various types. Wet tensile strength and degree or rate of are important qualities. |
| Impression Cylinder | | In printing, the cylinder on a printing press against which paper picks up the impression from the inked plate in direct printing, or the blanket in offset printing. |
| Infra-Red | | Part of the electro-magnetic spectrum between the visible range and the radar range. Radiant heat is in this range, and infra-red heaters are much used in sheet thermoforming. |
| Inhibitor | | A substance which slows down chemical reaction. Inhibitors are sometimes used in certain adhesives to prolong its life or storage. |
| Initial Tack | | Adhesives usually have two adhesive stages: 1) Initial tack at which time it is sticky enough to hold parts together; (2) Set at which point the adhesives has firmly bonded them. |
| Injection Blow Molding | | A molding procedure whereby a heat softened plastic is forced from a cylinder into a relatively cool cavity which gives the article the desired shape. |
| Ink Fountain | | In printing presses, the device which stores and supplies ink the inking rollers. |
| Ink Jet | | A method of printing using liquid ink projected a drop at a time against a substrate. |
| Instron | | Test instrument used to determine tensile and adhesion values. |
| IR | | Infrared Scannable |