Abstract:
A thermally image record material such as a secure document is taught which is susceptible to rapid and bulk destruction of confidential or sensitive information by microwave or high energy absorption. The thermally responsive record material comprises a heat sensitive composition (1) applied onto a substrate (2) having provided thereon in proximity, to the heat sensitive composition (1) as a subcoat or undercoat or back side coating (3), a layer of particles of an energy receiver material (3) such as a microwave susceptor. Sensitive information imprinted on the record material (1) can be readily destroyed by microwave heating.
Abstract:
An edge cleaning device, a system for cleaning an outside edge of a movable, coated web, and a method of cleaning the outside edge of the movable, coated web include a unique combination of desirable features. An edge cleaner device is automatically positioned with respect to an outside edge of a movable, coated web, wherein the edge cleaner device is positioned upstream from a backing roller for operatively engaging an underside of the moving, coated web. A fluid jet from a nozzle assembly of the edge cleaner device is applied toward the underside and the outside edge of the moving, coated web. A scraper device can be operatively engaged with an upper surface of the moving web without contacting an upper surface of the backing roller and the collection device may be imparted with a vacuum to assist in the removal of excess coating collected by the edge cleaning device.
Abstract:
A coated paper stock having high moisture vapor barrier characteristics and ingredient compatible with recycling and repulping is disclosed comprising a substrate coated on at least one surface with a subcoat. The subcoat comprises a hydrolyzed amphoteric vegetable protein at at least 11 weight percent based on weight of the subcoat. A top coat is coated over said subcoat. The top coat consists essentially of a water-based dispersion of a film forming vinyl addition polymer, conjugated diene polymer or copolymer of either polymer, such as acrylic polymers, acrylic copolymers, polyvinyl acetate, polyvinyl alcohol, styrene acrylate copolymers, styrene butadiene copolymers, polyvinylidene chloride and polyvinylidene chloride copolymers. The top coat is substantially free of mineral pigments that interfere with the moisture vapor barrier characteristics. The vegetable protein is preferably a hydrolyzed amphoteric soybean protein with an average molecular weight less than 400,000 Daltons.
Abstract:
Disclosed is a security token that contains a magnetic information in registration with thermally generated information. Also disclosed are numerous security and authentication methods made possible using such token.
Abstract:
An identification label (14) for a roll of paper (10) and a method of making the label (14). The back of the label (14) has adhesive only in selected portions (18) corresponding to the central roll (12) of the paper. The label (14) adheres to the end of the roll but not the paper wound thereon. The central area (18) of the label is cut in a star pattern (20) to form triangular sections which adhere to the inside surface of the core (12). A method is also provided for labeling a product (10) rolled about a core (12) by adhering such a label (14).
Abstract:
A secure point of sale imageable substrate is disclosed comprising a heat sensitive recording material for recording confidential information. The heat sensitive recording material comprises a heat transmissive optically opaque paper support, a heat sensitive imaging layer coated on the paper support, a removable cover sheet, and a transparent layer or sheet positioned between the heat sensitive layer and the removeable cover sheet. A method for recording confidential information using such a secure point of sale imageable substrate is also disclosed.
Abstract:
The present invention teaches an improved process for preparing a population of microcapsules having a substantially uniform size distribution, especially useful for manufacture of carbonless paper. The improved process teaches use of membrane material having a pre-selected pore size in the capsule manufacture process. A core material is provided along with a receiving solution for receiving the core material. The receiving solution is a nonsolvent for the core material. The core material is passed under pressure through the membrane into a moving or turbulent receiving solution forming uniform droplets of core material dispersed in the receiving solution. Wall-forming material is added to the receiving solution for coating the core material droplets. The coating on the droplets is polymerized forming microcapsules. This novel process also lends itself to microcapsule formation in a continuous process.
Abstract:
Disclosed is a process for preparing a fibrous web. The fibrous web includes a microencapsulated material, such as a microencapsulated phase change material, adhered to the web. Preferably, the web is prepared in a melt-blowing or spun-bonding process. In the melt-blowing (12) process, cooling water (17) containing the microcapsules is used to cool melt blown fibers prior to collection on a collector (16). In the spun-bonding (21) process, microcapsules are applied in liquid suspension or in dry form to a heated web, for instance, after the web has been calendered (28, 29). The fibrous webs thus prepared have numerous uses, and are particularly suited to the manufacture of clothing.
Abstract:
A system and two methods is provided for forming electrically conductive pathways. These pathways can be connected with a microchip in order to form a radio frequency identification tag (24). A first method uses a thermal transfer ribbon (14), coated with a conductive material that is engaged with a receiver substrate (16). A thermal print head (18) will heat a composition on the thermal transfer ribbon in order to transfer it to the receiver substrate. This transfer composition forms the electrically conductive pathway or antenna. In an alternative method, a receiver substrate (16) is also heated by a thermal print head (18) to form an electrically conductive pathway (26).
Abstract:
The present invention relates to a thermal transfer image receiving sheet comprising a substrate sheet having a first surface and second surface; a non-separable transfer layer provided on at least a first surface of the substrate; optionally an intermediate layer is coated between the transfer layer and paper substrate. The non-separable transfer layer and optional intermediate layer are relatively permanently affixed to the substrate. The intermediate layer can comprise an oil absorptive pigment having an absorbance of at least 90 grams per square meter, and a binder composition comprising a water soluble carboxyalkyl starch or cellulose at from 0.1 to 25 percent by weight based on weight of the intermediate layer. The transfer layer comprises an oil absorptive pigment having an absorbance of at least 90 grams per square meter, and a binder composition comprising water soluble carboxyalkyl starch or carboxyalkyl cellulose at from 0.1 to 20 percent by weight based on weight of the transfer layer. The surface of the transfer image receiving sheet is fast drying to the touch.