# US 11,077,693 B2 · Hot-stamping foil and print equipped with laminated optical decoration > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,077,693 B2 - Document ID: US11077693B2 - Status: Granted - Kind: B2 - Application number: 16/653,411 - Filed: 2019-10-15 - Published: 2020-02-06 - Granted: 2021-08-03 - Earliest claimed: 2017-04-21 - Assignees: Toppan Printing Co., Ltd. - Applicants: Toppan Printing Co., Ltd. - Inventors: Hanako Yamamoto - Web page: https://patentgrep.com/patent/US11077693B2 ## CPC - B41M 5/38214: {Structural details, e.g. multilayer systems (composition of individual layers B41M5/42)} - B44C 1/1729: {Hot stamping techniques} - B41M 5/392: Additives, other than colour forming substances, dyes or pigments, e.g. sensitisers, transfer promoting agents - B41M 5/5254: {characterised by the use of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers} - 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) - B44C: PRODUCING DECORATIVE EFFECTS (processes for applying liquids or other fluent materials to surfaces, in general B05D; shaping of plastics or substances in a plastic state B29C; printing processes to produce transfer pictures B41M3/12; thermographic duplication or marking methods B41M5/00); MOSAICS; TARSIA WORK (imitation of mosaic or tarsia work patterns B44F11/04); PAPERHANGING {(labels G09F; multi-step processes for making paper labels or tags B31D1/02)} ## Abstract A hot-stamping foil which is transferred to a transfer target by applying a transfer thermal pressure, including: a carrier that is a base film or a coated base film; a laminated optical decoration having a laminated optical structure formed on the carrier; a sinking control layer which contains a soft resin and a deformation limiting agent and is formed on the laminated optical structure; and an adhesive layer which is formed on the sinking control layer, wherein the adhesive layer contains a resin component which contains a thermoplastic resin having a glass transition temperature lower than room temperature and defines the thickness of the adhesive layer, and spacer particles which have a particle size larger than the thickness of the adhesive layer and some of which protrude from the resin component, and wherein the spacer particles sink into the sinking control layer after transfer thermal pressing. ## Claims ### Claim 1 A hot-stamping foil which is transferred to a transfer target by applying a transfer thermal pressure, comprising: a carrier that is a base film or a coated base film; a laminated optical decoration having a laminated optical structure formed on the carrier; a sinking control layer which contains a soft resin and a deformation limiting agent and is formed on the laminated optical structure; and an adhesive layer which is formed on the sinking control layer, wherein the adhesive layer contains a resin component which contains a thermoplastic resin having a glass transition temperature lower than room temperature and defines a thickness of the adhesive layer, and spacer particles which have a particle size larger than the thickness of the adhesive layer and a portion of which protrude from the resin component, and wherein the spacer particles sink into the sinking control layer after transfer thermal pressing. ### Claim 2 (depends on 1) The hot-stamping foil according to claim 1, wherein the deformation limiting agent contains at least one of inorganic powder fillers having a particle size smaller than the thickness of the adhesive layer and a high glass transition temperature polymer. ### Claim 3 (depends on 1) The hot-stamping foil according to claim 1, wherein the average particle size of the spacer particles is larger than a total thickness which is a sum of the thickness of the adhesive layer and a thickness of the sinking control layer, and is equal to or smaller than twice the total thickness. ### Claim 4 (depends on 1) The hot-stamping foil according to claim 1, wherein a sinking amount of the spacer particles after the transfer thermal pressing is equal to or greater than 20% and equal to or greater than 60% of a sinking amount of the spacer particles during overload thermal pressing. ### Claim 5 (depends on 1) The hot-stamping foil according to claim 1, wherein the deformation limiting agent is a vinyl chloride-vinyl acetate copolymer. ### Claim 6 (depends on 1) The hot-stamping foil according to claim 1, wherein the soft resin is an acid-modified polyolefin resin. ### Claim 7 (depends on 6) The hot-stamping foil according to claim 6, wherein the acid-modified polyolefin resin is a copolymer resin of polyethylene and (meth)acrylic acid. ### Claim 8 (depends on 1) The hot-stamping foil according to claim 1, wherein the soft resin is an acrylic resin. ### Claim 9 (depends on 1) The hot-stamping foil according to claim 1, wherein the sinking control layer contains a silanol bond. ### Claim 10 (depends on 1) The hot-stamping foil according to claim 1, wherein the sinking control layer contains a urethane bond. ### Claim 11 (depends on 1) The hot-stamping foil according to claim 1, wherein the deformation limiting agent contains a high glass transition temperature polymer, wherein the high glass transition temperature polymer and the soft resin are separated into two phases, and wherein the high glass transition temperature polymer has a continuous phase, and a glass transition temperature of the high glass transition temperature polymer is equal to or higher than a glass transition temperature of the soft resin. ### Claim 12 (depends on 1) The hot-stamping foil according to claim 1, wherein the adhesive layer contains powder fillers having a smaller particle size than the thickness of the adhesive layer. ### Claim 13 A hot-stamping foil which is transferred to a transfer target by applying a transfer thermal pressure, comprising: a carrier that is a base film or a coated base film; a laminated optical decoration having a laminated optical structure formed on the carrier; a sinking control layer which is formed on the laminated optical structure; and an adhesive layer which is formed on the sinking control layer, wherein the adhesive layer contains a resin component which defines a thickness of the adhesive layer; and spacer particles which have a particle size larger than the thickness of the adhesive layer and a portion of which protrude from the resin component, and wherein a sinking amount of the spacer particles after the transfer thermal pressing is equal to or greater than 20% and equal to or greater than 60% of a sinking amount of the spacer particles during overload thermal pressing. ### Claim 14 (depends on 13) The hot-stamping foil according to claim 13, wherein the adhesive layer contains powder fillers having a smaller particle size than the thickness of the adhesive layer. ### Claim 15 (depends on 13) The hot-stamping foil according to claim 13, wherein the sinking control layer contains a vinyl chloride-vinyl acetate copolymer resin. ### Claim 16 (depends on 15) The hot-stamping foil according to claim 15, wherein the sinking control layer further contains an acid-modified polyolefin resin. ### Claim 17 (depends on 15) The hot-stamping foil according to claim 15, wherein the sinking control layer further contains a copolymer resin of polyethylene and (meth)acrylic acid. ### Claim 18 (depends on 13) The hot-stamping foil according to claim 13, wherein the sinking control layer contains a silanol bond. ### Claim 19 (depends on 13) The hot-stamping foil according to claim 13, wherein the sinking control layer contains a urethane bond. ### Claim 20 (depends on 13) The hot-stamping foil according to claim 13, wherein the sinking control layer is formed of a resin having a melting point. ### Claim 21 (depends on 20) The hot-stamping foil according to claim 20, wherein the melting point is equal to or smaller than 120° C. ### Claim 22 (depends on 20) The hot-stamping foil according to claim 20, wherein the sinking control layer contains fillers. ### Claim 23 (depends on 20) The hot-stamping foil according to claim 20, wherein the adhesive layer contains an acrylic pressure-sensitive adhesive. ### Claim 24 (depends on 1) A print equipped with a laminated optical decoration in which the laminated optical decoration is thermally transferred to a print using the hot-stamping foil according to claim 1.