De-tackified labels extrusion process applied integrated label p

Details De-tackified labels extrusion process applied integrated label p De-tackified labels extrusion process applied integrated label p

1996-07-22

1998-12-15

Davis, Jenna

Stock material or miscellaneous articles

Layer or component removable to expose adhesive

Release layer

428 423, C09J 702

Patent

active

058493859

ABSTRACT:
In the manufacture of integrated labels it is desirable to apply pressure sensitive adhesive in a continuous manner, yet it is undesirable for active adhesive to be on one or more edges of the form since active adhesive can interfere with nip rollers upon entering a laser or other non-impact printer, or can otherwise interfere with proper operation of the printer. By using an adhesive--that is de-tackified by direct exposure to a sufficient type and dosage of electromagnetic radiation (such as a hot melt adhesive de-tackified by applying about 3000 mJ/cm.sup.2 total dosage of ultraviolet radiation)--that problem may be avoided. Apparatus for producing integrated labels with the adhesive at one or more edges being de-tackified may include a first conveyor for conveying sheets (either in stacked or single sheet form) in a first direction, and at least one ultraviolet radiation source mounted adjacent a side of the conveyor parallel to the first direction. A stacker, packaging device (such as a shrink wrap machine), 90.degree. conveyor, and/or turn table may also be utilized.

REFERENCES:
patent: 4151319 (1979-04-01), Sackoff
patent: 4286047 (1981-08-01), Bennett
patent: 5129682 (1992-07-01), Ashby
patent: 5340629 (1994-08-01), Rodighiero

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