Clean release laminate construction with latent image

Details Clean release laminate construction with latent image Clean release laminate construction with latent image

B - Operations, Transporting

41

M

42/1

B41M 5/165 (2006.01) G09F 3/02 (2006.01)

Patent

CA 1328169

Abstract of the Disclosure The present invention provides a laminate construction including a backing sheet, which may be in the form of a continuous web, and a face sheet covering at least a portion of the backing sheet. A releasable adhesive secures a first or lower surface of the face sheet to a first or upper surface of the backing sheet such that the face sheet and backing sheet are readily separable. The releasable adhesive contains therein a first composition which, when subjected to an imaging force, forms a latent image on both of the first surfaces of the face and backing sheets. This latent image may be developed at a later time by contacting the image with a second composition which, when exposed to the first composition, forms a visible image. In the laminate, the face sheet may be imprinted with legible and/or covert information. The covert information may be duplicated on the underside of the face sheet or on one or more intermediate sheets as well as a backing sheet. The face sheet can then be readily peeled from the construction and be used as a label, tag, form, or the like. The underlying sheets retain the same information as the face sheet. The covert or latent information can be developed at a later time to produce a visible image. All elements of the construction have nontacky surfaces, permitting easy handling and storage.

605311

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