GE Plastics has recently developed a new white grade of its Ultem* polyetherimide(PEI)film.White Ultem WH217 film is pigmented for high opacity to ensure bar code labels can be read correctly-the film provides a print contrast ratio of 98 percent out of 100.In addition to helping saving label manufacturers the expense and time required to apply an opaque topcoat,Ultem WH217 film provides flame retardance that is lacking in competitive PEN films,and offers higher temperature resistance and better dimensional stability than poly-vinyl fluoride films.GE's Ultem WH217 film meets UL 94 VTMO flame requirements without the use of halogenated additives,enabling the material to comply with European RoHS standards.It offers excellent tear strength to prevent label damage during processing,and high temperature resistance for demanding applications.In addition,the smoothness of the surface of the film may improve the print quality of the label.
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