# US 11,305,571 B2 · Film for sheet fed printing, sheets formed from such film and labels formed from such sheets > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,305,571 B2 - Document ID: US11305571B2 - Status: Granted - Kind: B2 - Application number: 16/580,704 - Filed: 2019-09-24 - Published: 2020-01-16 - Granted: 2022-04-19 - Earliest claimed: 2014-04-30 - Assignees: Taghleef Industries Inc. - Applicants: Taghleef Industries Inc. - Inventors: Bruce S. Marks - Web page: https://patentgrep.com/patent/US11305571B2 ## CPC - B41M 5/52: Macromolecular coatings - B32B 27/08: of synthetic resin - B32B 27/18: characterised by the use of special additives - B32B 27/20: using fillers, pigments, thixotroping agents - B32B 27/32: comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)} - B41M 5/504: {Backcoats} - B41M 5/508: {Supports} - B41M 5/5218: {characterised by inorganic additives, e.g. pigments, clays} - B41M 5/5254: {characterised by the use of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers} - G09F 3/02: Forms or constructions (layered products B32B) - B32B 2250/242: All polymers belonging to those covered by group B32B27/32 - B32B 2255/10: on synthetic resin layer or on natural or synthetic rubber layer - B32B 2264/10: Inorganic particles - B32B 2264/102: Oxide or hydroxide - B32B 2264/12: Mixture of at least two particles made of different materials - B32B 2307/518: bi-axially - B32B 2307/746: Slipping, anti-blocking, low friction - B32B 2307/75: Printability - B32B 2519/00: Labels, badges - B41M 5/502: {characterised by structural details, e.g. multilayer materials (supports, backcoats or intermediate layers for thermal dye transfer donor and receiver sheets B41M5/41, B41M5/42)} - B41M 2205/34: Both sides of a layer or material are treated, e.g. coated - B41M 2205/36: Backcoats; Back layers - G09F 2003/0201: {Label sheets intended to be introduced in a printer, e.g. laser printer} - G09F 2003/0226: {Carrier sheet} - G09F 2003/0257: {Multilayer} - B41M: PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING, (correction of typographical errors B41J; processes for applying transfer pictures or the like B44C1/16; fluid media for correction of typographical errors by coating C09D10/00; printing textiles D06P) - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS ## Abstract A plurality of plastic sheets to be fed into a high speed printer for forming printed labels and similar articles and a stack of printed labels formed form the sheets. Each of the sheets or labels includes a core layer and opposed, upper and lower outer skin layers. The upper outer skin layer includes a polyolefin polymer as the predominant component, by weight, thereof and is capable of receiving printed indicia thereon. The core layer includes a polyolefin polymer as the predominant component, by weight, of the core layer; preferably a high crystallinity polypropylene homopolymer. The lower outer skin layer includes a polyolefin polymer as the predominant component by weight therein; the improvement wherein the lower outer skin layer includes a blend of organic and inorganic antiblocking agents or a blend of inorganic antiblocking agents; the blend including less than 10%, by weight, of the lower outer skin layer. ## Claims ### Claim 1 A sheet configured to be fed into a high speed printer for forming printed labels or other printed sheet material, said sheet comprising: an upper outer skin layer comprising a first polyolefin polymer as a predominant component by weight thereof and being effective to receive printed indicia from the high speed printer; a lower out skin layer; and a core layer between the upper outer skin layer and the lower outer skin layer, said core layer comprising a second polyolefin polymer as the predominant component, by weight, of the core layer, wherein said lower outer skin layer comprises: a third polyolefin polymer as the predominant component by weight thereof; talc in an amount of 1% to 5% by weight of the lower outer skin layer; silica in an amount of at least 0.25% by weight of the lower out skin layer; polymethylmethacrylate (PMMA) in an amount of 0.25% to 5% by weight of the lower outer skin layer; and a maleic anhydride-modified polypropylene homopolymer. ### Claim 2 (depends on 1) Printed labels cut from the sheet of claim 1 and maintained in a stack to be individually fed from the stack for use in labeling articles. ### Claim 3 (depends on 1) A stack comprising more than one plastic sheet of claim 1, said stack including adjacent leading and trailing plastic sheets, said stack being assembled such that the leading plastic sheets are directed through the high speed printer prior to adjacent, trailing sheets, and said lower outer skin layer of the leading plastic sheets are at least in partial engagement with said upper outer skin layer of the adjacent trailing plastic sheet. ### Claim 4 (depends on 3) The stack of claim 3, said stack being assembled such that said leading and adjacent trailing sheets are retained in the stack from which the leading sheets and adjacent trailing sheets are fed into and through the high speed printer in a shingled arrangement wherein distal ends of the lower outer skin layers of the leading sheets engage upper proximal outer skin layers of the trailing sheets. ### Claim 5 A plurality of labels in a stack, each label of the plurality of labels comprising: an upper outer skin layer comprising a first polyolefin polymer as a predominant component by weight thereof and being effective to receive printed indicia from the high speed printer; a lower out skin layer; and a core layer between the upper outer skin layer and the lower outer skin layer, said core layer comprising a second polyolefin polymer as the predominant component, by weight, of the core layer, wherein said lower outer skin layer comprises: a third polyolefin polymer as the predominant component by weight thereof; talc in an amount of 1% to 5% by weight of the lower outer skin layer; silica in an amount of at least 0.25% by weight of the lower outer skin layer; polymethylmethacrylate (PMMA) in an amount of 0.25% to 5% by weight of the lower outer skin layer; and a maleic anhydride-modified polypropylene homopolymer. ### Claim 6 (depends on 1) The sheet of claim 1, wherein each of the first polyolefin polymer, the second polyolefin polymer and the third polyolefin polymer is a polypropylene homopolymer or a copolymer of polypropylene and 2% by weight or less of ethylene. ### Claim 7 (depends on 1) The sheet of claim 1, wherein the amount of talc in the lower outer skin layer is 1.75% by weight of the lower outer skin layer; the amount of silica in the lower outer skin layer is 0.25% by weight of the lower outer skin layer; the amount of PMMA in the lower outer skin layer is 0.25% by weight of the lower outer skin layer; and the maleic anhydride-modified polypropylene homopolymer is present in an amount of 5% by weight of the lower outer skin layer. ### Claim 8 (depends on 5) The plurality of labels of claim 5, wherein each of the first polyolefin polymer, the second polyolefin polymer and the third polyolefin polymer is a polypropylene homopolymer or a copolymer of polypropylene and 2% by weight or less of ethylene. ### Claim 9 (depends on 5) The plurality of labels of claim 5, wherein the amount of talc in the lower outer skin layer is 1.75% by weight of the lower outer skin layer; the amount of silica in the lower outer skin layer is 0.25% by weight of the lower outer skin layer; the amount of PMMA in the lower outer skin layer is 0.25% by weight of the lower outer skin layer; and the maleic anhydride-modified polypropylene homopolymer is present in an amount of 5% by weight of the lower outer skin layer.