Mylar: A polyester film which displays Remarkable mechanical toughness and dimensional security. Prevalent substrate Employed in flexographic film printing.
Gripper edge: The top fringe of paper since it passes by way of a printing press. Also the entrance edge of a lithographic or wrap-close to plat that is certainly secured to front clam of plate cylinder.
Abrasion check: A check created to determine the opportunity to withstand the effects of rubbing and scuffing.
Hygroscopic: The power of a cloth to absorb or or else consider up moisture with the environment.
Lamination: A plastic film bonded by heat and stress to a printed sheet for defense or overall look.
Matrix: A mould in which kind is Solid in linecasting machines. In stereotyping, the paper mold or mat produced from a kind form.
Ionomer: Frequently refered to as Surlyn a polymer that comprises repeat models of both of those electrically neutral repeating units in addition to a fraction of ionized models (usually no more than 15 mole p.c) covalently bonded on the polymer spine as pendant moieties.
Alumina hydrate: Also called hydrate. A dog claw pain white, inorganic pigment utilized being an extender in inks and noted for its transparency.
Efflux cup: A straightforward viscometer including the Zahn, Shell or Hiccup, which give viscosity readings fast in terms of the volume of seconds required for the cup to vacant as a result of an orifice of recognised dimensions. Gravure/Flexographic/Display Elastic Elongation: The power of a fabric to extend without breaking.
Flange: The prolonged lip from the hand brake that retains the operator’s hand from sliding down and rubbing towards the roll.
Duplicating film: A film for generating positives from positives, and negatives from negatives. In color reproduction, a Exclusive film employed for producing duplicates of shade transparencies.
Alkali resistance: Property of an ink, coating or substrate in order that it resists film breakdown, shade change or colour bleed when printed content is subjected to Get hold of with alkaline components like cleaning soap or detergent.
Film Former: A variety of resin (binder) with traits of forming a tough, continual film; ordinarily refers to these kinds of plastics as ethyl cellulose, nitrocellulose, chlorinated rubber and vinyl Utilized in inks dog feel pain and coatings.
Blocking: The undesired adhesion of two or even more plies of fabric on the extent that surfaces turn into harmed or distorted, or even the inks or coatings transfer from just one floor to another when adjacent levels are divided.