UL

an abbreviation for Underwriters Laboratory. This organization approves label materials for electrical product applications. They also approve label materials for ladders. Label materials designated as U.L. approved were tested and found to meet specific requirements. The least stringent approval is called type L and classification marker approval. U.L. tests samples against stainless steel panels to make sure that attempted removal will result in label destruction. U.L. also approves label materials for specific applications and substrates.

U.L. Approved

a group of pressure sensitive constructions that have been approved by Underwriters Laboratory for certain applications.

UCC

Uniform Code Council, formerly Uniform Product Code Council; the organization which administers the UPC and other retail standards. Address: 8163 Old Yankee Road, Suite J, Dayton, OH 45458.

UCS

Uniform Container Symbol.

ultimate adhesion

the maximum adhesion available from a pressure sensitive adhesive determined by the force necessary to remove a strip of tape from a surface after an extended period of time.

ultraviolet

the zone of invisible radiations beyond the violet end of the visible light spectrum. UV is the abbreviation. UV wavelengths are shorter than visible slight and have more energy that can cause degradation.

un-bleached

paper or pulp which has not been treated with bleaching agents.

Uncoated Litho

a roll pressure sensitive face stock which does not have a clay printing coating. The print surface is relatively rough and print quality is not as high as with clay coated face stocks.

uncoated paper

could have two meanings. It could represent any paper that does not have adhesive. It could also represent a type of paper that does not have any clay coating. All of the paper is made from pulp. The meaning would depend on the context in which it is used. See also coated paper.

under-run

production or delivery that is less than the quantity ordered by the customer. Over-run is the opposite. All of Technicote products have published shipment tolerances. Product is not considered under-run or over-run unless the difference exceeds those tolerances.

Underwriters Laboratory

the full name for U.L. See UL

untrimmed

paper rewound without slitting off a trim edge.

UPC

Universal Product Code, the standard bar code symbol for retail food packages in the United States. It encodes a 12-digit number assigned to specific consumer units of general trade items. The first 6 digits are assigned by the UCC. The next 5 digits are assigned by the manufacturer. The final digit is a check digit.

UPCC

Universal Product Carton Code; a standard administered by the UCC.

USS

Uniform Symbol Specification. The current series of symbology specifications published by AIM; currently includes USS-I 2/5, USS-39, USS-93, USS-Codabar and USS-128. USS-I 2/5. There is no inter-character gap in a continuous code.

UTT

an abbreviation for uncoated thermal transfer. See also CTT, Thermal Transfer CTT, thermal transfer and Thermal Transfer UTT.

UV resistance

the ability of any material to withstand extended exposure to sunlight without degradation, hardening or discoloring.

UV varnish

lacquer or varnish usually applied over the printed web used as a protective layer that is cured by exposure to a high intensity ultra violet light source