A coated paperboard is disclosed which includes a barrier coating containing substantially no fluorochemical or wax, exhibiting good resistance to oil and grease, no tendency toward blocking, the coated paperboard being fully repulpable as well as compostable. The coated paperboard may further have a printable coating on a surface opposite from the barrier coating.

The present disclosure relates a cost-effective manufacturing method of barrier-based paperboard and paper webs which are recyclable and repulpable and which embody heat-sealing properties and blocking resistance. To incorporate said properties of the paperboard, the method involves several steps like, paper substrate preparation, pre-treatment of the same followed by coating a base barrier coating, a barrier coating, a heat-sealing coating, and a shield coating, and finally culminating in post-treatment of the paperboard and ending up by winding the board in rolls for marketability.

The present disclosure relates a cost-effective manufacturing method of barrier-based paperboard and paper webs which are recyclable and repulpable and which embody heat-sealing properties and blocking resistance. To incorporate said properties of the paperboard, the method involves several steps like, paper substrate preparation, pre-treatment of the same followed by coating a base barrier coating, a barrier coating, a heat-sealing coating, and a shield coating, and finally culminating in post-treatment of the paperboard and ending up by winding the board in rolls for marketability.

The present invention relates to a coated paper comprising a base paper and a barrier layer applied thereto, the barrier layer comprising at least one polymer, the polymer comprising an at least partly saponified polyvinyl alcohol and/or an at least partly saponified polyvinyl alcohol copolymer, each of which has an onset temperature of less than 210 C. determined by DSC.

The present invention relates to a coated paper comprising a base paper and a barrier layer applied thereto, the barrier layer comprising at least one polymer, the polymer comprising an at least partly saponified polyvinyl alcohol and/or an at least partly saponified polyvinyl alcohol copolymer, each of which has an onset temperature of less than 210 C. determined by DSC.

An application device and method for coating a fibrous material web, in particular a paper, packaging or board web. The application device has an application nozzle for applying a coating medium, in particular a starch solution, to a moving surface and the application nozzle has an outlet gap which extends in the width direction of the application nozzle for producing a film of coating medium or a curtain of coating medium. The application nozzle has a gap width across its width direction that may be varied by profiling devices.

An application device and method for coating a fibrous material web, in particular a paper, packaging or board web. The application device has an application nozzle for applying a coating medium, in particular a starch solution, to a moving surface and the application nozzle has an outlet gap which extends in the width direction of the application nozzle for producing a film of coating medium or a curtain of coating medium. The application nozzle has a gap width across its width direction that may be varied by profiling devices.

The present invention relates to a method for manufacturing a barrier film comprising highly refined cellulose, said method comprising: a) providing a highly refined cellulose pulp suspension comprising highly refined cellulose pulp having a Schopper-Riegler (SR) number in the range of 40-98 as determined by standard ISO 5267-1 and a content of fibers having a length >0.2 mm of at least 7 million fibers per gram based on dry weight, at a consistency in the range of 0.1-1.5 wt %; b) forming a web of the highly refined cellulose pulp suspension and dewatering the web in a paper machine former on a wire to a consistency of at least 5 wt % to obtain a substrate web, wherein the white water removed from the pulp contains 2-25 wt %, preferably 5-20 wt % and more preferably at least 5-15 wt % of the solids of the highly refined cellulose pulp suspension provided in step a); c) optionally further dewatering and optionally drying the substrate web; d) coating the optionally further dewatered and optionally dried substrate web with a coating suspension comprising cellulose fines or microfibrillated cellulose to obtain a coated web; and e) dewatering and/or drying the coated web to obtain a barrier film comprising highly refined cellulose.

The present invention relates to a method for manufacturing a barrier film comprising highly refined cellulose, said method comprising: a) providing a highly refined cellulose pulp suspension comprising highly refined cellulose pulp having a Schopper-Riegler (SR) number in the range of 40-98 as determined by standard ISO 5267-1 and a content of fibers having a length >0.2 mm of at least 7 million fibers per gram based on dry weight, at a consistency in the range of 0.1-1.5 wt %; b) forming a web of the highly refined cellulose pulp suspension and dewatering the web in a paper machine former on a wire to a consistency of at least 5 wt % to obtain a substrate web, wherein the white water removed from the pulp contains 2-25 wt %, preferably 5-20 wt % and more preferably at least 5-15 wt % of the solids of the highly refined cellulose pulp suspension provided in step a); c) optionally further dewatering and optionally drying the substrate web; d) coating the optionally further dewatered and optionally dried substrate web with a coating suspension comprising cellulose fines or microfibrillated cellulose to obtain a coated web; and e) dewatering and/or drying the coated web to obtain a barrier film comprising highly refined cellulose.

The application relates to a coated paper comprising a base paper and at least one coating applied directly or indirectly onto the base paper, wherein the coating comprises a) at least one natural wax and/or at least one carboxylic acid component; and b) at least one natural resin; wherein the permeability of the coated paper for at least one gas is reduced compared to the base paper. Furthermore, the application relates to the coating used for producing the coated paper, the production method, and the packaging produced therefrom.