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The most commonly used material is a heavy weight vinyl known as PVC (polyvinyl chloride). The weights of the different banner substrates range from as light as 9 ounces per square yard (310 g/m 2) to as heavy as 22 oz/sq yd (750 g/m 2), and may be double- or single-sided.
In the early 1970s, the carcinogenicity of vinyl chloride (usually called vinyl chloride monomer or VCM) was linked to cancers in workers in the polyvinyl chloride industry. Specifically workers in polymerization section of a B.F. Goodrich plant near Louisville, Kentucky , were diagnosed with liver angiosarcoma also known as hemangiosarcoma , a ...
In the 1960s, further innovations, increasing demand, and new kinds of adhesives were produced, and self-adhesive labels began to be manufactured on a large scale to a worldwide market. [1] In the 1970s self-adhesive labels and stickers became mainstream products and were popularized in the form of car decals, bumper stickers, and collectable ...
Originally named the National Alliance of Bill Posters and Billers of America, in 1908 it became the International Alliance of Bill Posters and Billers of America. By 1925, it had 6,000 members. [1] [2] The union affiliated to the new AFL-CIO in 1955, and adopted its final name, but by 1957 its membership had fallen to 1,600. [3]
Adhesives may be broadly divided in two classes: structural and pressure-sensitive. To form a permanent bond, structural adhesives harden via processes such as evaporation of solvent (for example, white glue), reaction with UV radiation (as in dental adhesives), chemical reaction (such as two part epoxy), or cooling (as in hot melt).
The Verified-Accredited Wholesale Distributors (VAWD) program was established in 2004 to help protect the public from the threat of counterfeit drugs. [1] The VAWD program was developed and is administered by the National Association of Boards of Pharmacy (NABP). [ 1 ]
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