A coating composition for a heat sealable, inkjet printable image transfer material comprising:n40 to 90 wt.-%, based on the dry weight of the composition, of one or more binding agents comprising at least one cellulose-based binding agent,5 to 50 wt.-%, based on the dry weight of the composition, of one or more tackifiers comprising at least one rosin-based tackifier,5 to 50 wt.-%, based on the dry weight of the composition, of one or more plasticizers,optionally 0.1 to 10 wt.-%, based on the dry weight of the composition, of one or more organic or inorganic pigments and/or fillers, and optionally one or more components selected from the group comprising solvents, colorants and dyes, heat and/or ultraviolet light stabilizers, UV-absorbers, free radical scavengers, surfactants, dispersing aids, wetting agents, anti-foaming agents, de-aerators, rheological additives, substrate wetting and anti-cratering additives, ink fixing agents, flow improvers, antioxidants, brighteners, phosphorescence agents, cross-linking agents and mixtures thereof.
›2.↳ 1The coating composition according to claim 1, whereinnthe at least one cellulose-based binding agent is selected from the group consisting of cellulos…d2+7
The coating composition according to claim 1, whereinnthe at least one cellulose-based binding agent is selected from the group consisting of cellulose esters, cellulose ethers and mixtures thereof and/orthe at least one rosin-based tackifier comprises at least one fully or partially hydrogenated rosin or an ester thereof and/orthe at least one plasticizer is selected from the group consisting of optionally epoxidized oils, fatty acids as well as esters thereof, benzoates, glyceryl esters, esters of polycarboxylic acids with linear or branched aliphatic alcohols, (poly)glycol esters, sulfonamides, polymeric plasticizers and mixtures thereof.
›3.↳ 2The coating composition according to claim 2, wherein the at least one cellulose-based binding agent comprises mixed cellulose esters.d3+2
The coating composition according to claim 2, wherein the at least one cellulose-based binding agent comprises mixed cellulose esters.
›4.↳ 3The coating composition according to claim 3, wherein the mixed cellulose esters comprise a combination of different acyl groups selected from the gro…d4+1
The coating composition according to claim 3, wherein the mixed cellulose esters comprise a combination of different acyl groups selected from the group consisting of acetyl, butyryl, propionyl and trimellityl groups.
›5.↳ 4The coating composition according to claim 4, wherein the mixed cellulose esters are selected from the group consisting of cellulose acetate propionat…d5
The coating composition according to claim 4, wherein the mixed cellulose esters are selected from the group consisting of cellulose acetate propionate and cellulose acetate butyrate and mixtures thereof.
›6.↳ 2The coating composition according to claim 2, wherein the at least one rosin-based tackifier comprises at least one ester of a fully or partially hydr…d3
The coating composition according to claim 2, wherein the at least one rosin-based tackifier comprises at least one ester of a fully or partially hydrogenated rosin.
›7.↳ 2The coating composition according to claim 2, wherein the at least one rosin-based tackifier comprises at least one ester of a fully or partially hydr…d3
The coating composition according to claim 2, wherein the at least one rosin-based tackifier comprises at least one ester of a fully or partially hydrogenated rosin selected from the group consisting of ethyl, ethylene glycol, diethylene glycol, glyceryl, methyl, pentaerythrityl and triethylene glycol esters and mixtures thereof.
›8.↳ 2The coating composition according to claim 2, wherein the at least one rosin-based tackifier has a softening point in the range of from −50 to 150°…d3
The coating composition according to claim 2, wherein the at least one rosin-based tackifier has a softening point in the range of from −50 to 150° C.
›9.↳ 2The coating composition according to claim 2, wherein the at least one plasticizer is selected from the group consisting of epoxidized vegetable oils,…d3
The coating composition according to claim 2, wherein the at least one plasticizer is selected from the group consisting of epoxidized vegetable oils, oleates, caprates, tallates, glyceryl esters, (poly)glycol esters, alkyl azelates, alkyl citrates, alkyl glutarates, alkyl phthalates, alkyl trimellitates, alkyl adipates, alkyl sebacates, alkyl maleates, alkyl terephthalates, N-(n-butyl) benzene sulfonamide, polyesters of aliphatic dicarboxylic acids, and mixtures thereof.
›10.↳ 1The coating composition according to claim 1 further comprising one or more additional binding agents selected from the group comprising acrylic (co)p…d2
The coating composition according to claim 1 further comprising one or more additional binding agents selected from the group comprising acrylic (co)polymers, polyurethanes, polyvinyl alcohols, polyvinyl acetates, polyvinyl butyrals as well as blends, mixtures and copolymers thereof.
›11.↳ 1The coating composition according to claim 1 being present in the form of a coating layer, wherein the total thickness of the coating layer, including…d2
The coating composition according to claim 1 being present in the form of a coating layer, wherein the total thickness of the coating layer, including any optional additional layers, is in the range of from 5 to 100 μm.
›12.↳ 1The coating composition according to claim 1, wherein the at least one rosin-based tackifier has a Gardner color of equal to or less than 7.d2
The coating composition according to claim 1, wherein the at least one rosin-based tackifier has a Gardner color of equal to or less than 7.
›13.↳ 1The coating composition according to claim 1, having a haze of equal to or less than 10%.d2
The coating composition according to claim 1, having a haze of equal to or less than 10%.
›14.↳ 1An article comprising a coating composition according to claim 1 in form of at least one heat sealable, inkjet printable layer.d2+9
An article comprising a coating composition according to claim 1 in form of at least one heat sealable, inkjet printable layer.
›15.↳ 14The article according to claim 14, wherein said article comprises a multilayer coating stack comprising one or more additional layers in addition to t…d3+1
The article according to claim 14, wherein said article comprises a multilayer coating stack comprising one or more additional layers in addition to the heat sealable, inkjet printable layer, positioned under said heat sealable, inkjet printable layer which additional layers are transferable together with the heat sealable, inkjet printable layer.
›16.↳ 15The article according to claim 15, wherein said additional layers are selected from the group comprising additional ink receiving layers, additional a…d4
The article according to claim 15, wherein said additional layers are selected from the group comprising additional ink receiving layers, additional adhesive layers, protective layers, primer layers, layers to adapt gloss, roughness or feel of the outer surface of the transferred coating stack, layers for enhancing the mechanical and/or thermal resistance of the multilayer coating stack and combinations thereof.
›17.↳ 14The article according to claim 14, wherein said article is a heat sealable, inkjet printable image transfer material, comprising the at least one heat…d3+5
The article according to claim 14, wherein said article is a heat sealable, inkjet printable image transfer material, comprising the at least one heat sealable, inkjet printable layer or the multilayer coating stack over a temporary carrier layer which temporary carrier layer is optionally coated with one or more release layers.
›18.↳ 17The article according to claim 17, wherein said temporary carrier layer comprises a substrate selected from the group consisting of paper, metal films…d4
The article according to claim 17, wherein said temporary carrier layer comprises a substrate selected from the group consisting of paper, metal films and foils, plastic films and foils, nonwoven fabrics and composites and combinations thereof and said release layer, if present, is a silicone-based release layer and said additional layers, if present, are located between the temporary carrier layer or the release layer, if present, and the heat sealable, inkjet printable layer.
›19.↳ 17A method for applying graphical information to a surface of an object comprising the steps of:nproviding a heat sealable, inkjet printable image trans…d4+3
A method for applying graphical information to a surface of an object comprising the steps of:nproviding a heat sealable, inkjet printable image transfer material according to claim 17,applying graphical information to the heat sealable, inkjet printable coating composition by inkjet printing,positioning the heat sealable, inkjet printable image transfer material over the surface of the object,applying heat and/or pressure to the outer surface of the heat sealable, inkjet printable image transfer material to affix it to the surface of the object,removing the temporary carrier layer from the heat sealable, inkjet printable coating composition or the multilayer coating stack, respectively,wherein the steps of applying graphical information to the heat sealable, inkjet printable coating composition and of removing the temporary carrier layer may be independently carried out before or after the heat sealable, inkjet printable material is affixed to the surface of the object by heat and/or pressure.
›20.↳ 19The method according to claim 19, further comprising one or more additional steps of modifying the outer surface of the heat sealable, inkjet printabl…d5+1
The method according to claim 19, further comprising one or more additional steps of modifying the outer surface of the heat sealable, inkjet printable image transfer material, preferably by calendering, embossing, engraving, grooving and/or stamping before, while and/or after the heat sealable, inkjet printable image transfer material is affixed to the object.
›21.↳ 20The method according to claim 20, wherein the step of affixing the inkjet printable image transfer material to the surface of the object is carried ou…d6
The method according to claim 20, wherein the step of affixing the inkjet printable image transfer material to the surface of the object is carried out using a roll laminator or a heat press.
›22.↳ 19The method according to claim 19, wherein the step of affixing the inkjet printable image transfer material to the surface of the object is carried ou…d5
The method according to claim 19, wherein the step of affixing the inkjet printable image transfer material to the surface of the object is carried out at a temperature in the range of from 60 to 170° C. and/or at a pressure in the range of from 1 to 20 bar.
›23.↳ 14The article according to claim 14, wherein said article is an object having applied said at least one heat sealable, inkjet printable layer or said mu…d3
The article according to claim 14, wherein said article is an object having applied said at least one heat sealable, inkjet printable layer or said multilayer coating stack over at least a part of its surface(s), wherein the surface(s) comprise(s) a material selected from the group consisting of paper, cardboard, glass, metal, stone, ceramics, porcelain, plastics, rubber, wood, woven and nonwoven fabrics and mixtures and composites thereof.
›24.↳ 1A method of making a coating composition according to claim 1, comprising the steps of providing a mixture comprising at least one cellulose-based bin…d2
A method of making a coating composition according to claim 1, comprising the steps of providing a mixture comprising at least one cellulose-based binding agent, at least one rosin-based tackifier and at least one plasticizer in at least one solvent.
