Abstract: A postal card or mailer construction comprising a cover sheet adhered to a base sheet is provided which is simple to manufacture and print by automated systems and which is capable of providing hidden confidential information to an addressee. Upon receipt, the addressee can readily peel back the cover sheet and read the confidential information. Through the use of a releasable adhesive, once delaminated, all surfaces of the postal card construction have nontacky surfaces, permitting easy handling and storage by the recipient. The construction includes a base sheet, a cover sheet overlying the base sheet, and a releasable adhesive securing a first surface of the cover sheet to a first surface of the base sheet such that the cover sheet and base sheet are readily separable. The releasable adhesive contains therein a first color former composition which, when exposed to a second color developer composition, forms a distinctive color.

Abstract: A laminate construction is provided which includes a backing sheet, a face sheet covering at least a portion of the backing sheet, and a releasable adhesive securing the face sheet to the backing sheet. The construction also includes first and second compositions which, when combined, form a distinctive color. The compositions are so arranged in the construction so that the application of an imaging force to the face sheet causes the compositions to combine and produce a color in the area beneath the imaging force. The face sheet can be peeled away to provide a nontacky label or the like, while a duplicate copy of the information printed onto the face sheet remains on the backing sheet. The construction may also include one or more intermediate plied which provide additional copies of the information.

Abstract: A plurality of sheets are attached together by one or a plurality of thin films or layers of tough flexible material. A film may attach two sheets together firmly or in a releasable manner to permit relative movement between the sheets. In one form of the invention, each film or layer of flexible material is attached by self-bonding to the sheets between which the film or layer is disposed. In another form of the invention, each film is self-bonded to only one sheet and a plurality of films are attached together to attach a plurality of sheets together. The film may carry image transfer material on a complete surface thereof or on a portion thereof, in addition to serving as attachment means for adjacent sheets. In another form of this invention, the film serves only as a means for attachment of adjacent sheets, one to the other.

Abstract: A continuous business sheet or paper-like web carries image transfer means which is supported by a thin plastics film or layer of tough flexible carrier material. The film or layer of carrier material is removably attached to the sheet and may be removed from the sheet before or after use of the transfer material. Thus, when desired, the transfer material is removed from the business sheet by removal of the carrier material and the business sheet is thus freed from the transfer material and from any problems which may be associated therewith.

Abstract: A continuous business sheet or paper-like web carries image transfer means which is supported by a thin plastics film or layer of tough flexible carrier material. The film or layer of carrier material is removably attached to the sheet and may be removed from the sheet before or after use of the transfer material. Thus, when desired, the transfer material is removed from the business sheet by removal of the carrier material and the business sheet is thus freed from the transfer material and from any problems which may be associated therewith.