D21H19/48

CELLULOSIC LAMINAR ELEMENT, METHOD FOR OBTAINING SAID ELEMENT AND RECEPTACLE MADE USING SAID CELLULOSIC LAMINAR ELEMENT
20220412009 · 2022-12-29 ·

The present invention relates to a method for producing a coated cellulosic laminar element for disposable food and/or drinks service packaging and containers, comprising the following steps: (a) performing a first application of an aqueous dispersion of an ethylene compound and an acrylic compound on a single side of the cellulosic laminar element; (b) drying the dispersion applied in a); (c) performing, after the drying, a second application of the ethylene compound and acrylic compound to the ethylene compound and acrylic compound applied in a) on the same side; (d) drying the dispersion applied in c). The present invention also relates to a cellulosic laminar element and to a disposable foods and/or drinks service packaging and containers obtained by means of the method of the present invention.

CELLULOSIC LAMINAR ELEMENT, METHOD FOR OBTAINING SAID ELEMENT AND RECEPTACLE MADE USING SAID CELLULOSIC LAMINAR ELEMENT
20220412009 · 2022-12-29 ·

The present invention relates to a method for producing a coated cellulosic laminar element for disposable food and/or drinks service packaging and containers, comprising the following steps: (a) performing a first application of an aqueous dispersion of an ethylene compound and an acrylic compound on a single side of the cellulosic laminar element; (b) drying the dispersion applied in a); (c) performing, after the drying, a second application of the ethylene compound and acrylic compound to the ethylene compound and acrylic compound applied in a) on the same side; (d) drying the dispersion applied in c). The present invention also relates to a cellulosic laminar element and to a disposable foods and/or drinks service packaging and containers obtained by means of the method of the present invention.

Paperboard for packaging of liquid and/or frozen food

The present invention discloses a paperboard for packaging of liquid and frozen food, comprising a dispersion coating as the only barrier layer on its outside/print side. It has surprisingly been found that a dispersion coating comprising latex and pigment applied on the outside/print side of a paperboard for liquid and/or frozen food may serve as the only barrier against moisture arising from condensation.

Method for producing paper

A method for producing a paper, which includes applying at least one of ionizing radiation and plasma to at least one of a paper base and a compound (A) selected from: a compound having a carbon-carbon unsaturated bond and containing no fluorine atom in a molecular structure, and a compound containing no fluorine atom in a molecular structure in which radicals are generated by irradiation of an electron beam to the compound, to introduce a layer formed from the compound (A) on a surface of the paper base.

PAPER FOR TRANSFER PATTERN PRINTING
20230073763 · 2023-03-09 ·

The invention relates to a transfer paper (4) for use for transferring a print of ink onto a fabric, said transfer paper comprising: i) a base paper (2); ii) an additive (8) comprising a starch component, and a binding agent; wherein said starch component being a starch selected from the group comprising: unmodified starch or a modified starch or a mixture thereof; and wherein said binding agent being a binding agent selected from the group comprising: an alkyl ketene dimer, a tall oil/fumaric acid copolymer, a styrene/acrylate copolymer and an alkenyl succinic anhydride and a mixture thereof; wherein said base paper (2) comprises an amount of said additive by being impregnated therewith; and wherein said base paper (2) having a water uptake as defined by a Cobb-45 value of 10-100 g/m.sup.2 and a having a Gurley porosity of 10-140 seconds. The present invention furthermore relates to uses of the transfer paper (4).

PAPER FOR TRANSFER PATTERN PRINTING
20230073763 · 2023-03-09 ·

The invention relates to a transfer paper (4) for use for transferring a print of ink onto a fabric, said transfer paper comprising: i) a base paper (2); ii) an additive (8) comprising a starch component, and a binding agent; wherein said starch component being a starch selected from the group comprising: unmodified starch or a modified starch or a mixture thereof; and wherein said binding agent being a binding agent selected from the group comprising: an alkyl ketene dimer, a tall oil/fumaric acid copolymer, a styrene/acrylate copolymer and an alkenyl succinic anhydride and a mixture thereof; wherein said base paper (2) comprises an amount of said additive by being impregnated therewith; and wherein said base paper (2) having a water uptake as defined by a Cobb-45 value of 10-100 g/m.sup.2 and a having a Gurley porosity of 10-140 seconds. The present invention furthermore relates to uses of the transfer paper (4).

Method for making hydrophobic barriers requiring UV-light treatment

Provided is a method of patterning a substrate. The method includes depositing, in a first predetermined pattern, hydrophobic material on a first surface of a hydrophilic substrate. The method includes permeating the hydrophobic material through a thickness of the substrate. The method includes exposing the hydrophobic material to UV-light and sufficiently solidifying the permeated hydrophobic material. The sufficiently solidified hydrophobic material forms a liquid-impervious barrier that separates the substrate into at least one discrete region.

Method for making hydrophobic barriers requiring UV-light treatment

Provided is a method of patterning a substrate. The method includes depositing, in a first predetermined pattern, hydrophobic material on a first surface of a hydrophilic substrate. The method includes permeating the hydrophobic material through a thickness of the substrate. The method includes exposing the hydrophobic material to UV-light and sufficiently solidifying the permeated hydrophobic material. The sufficiently solidified hydrophobic material forms a liquid-impervious barrier that separates the substrate into at least one discrete region.

METHOD FOR PRODUCING AN AQUEOUS POLYMER DISPERSION FROM VINYLAROMATIC COMPOUND AND CONJUGATED ALIPHATIC DIENE
20220033550 · 2022-02-03 ·

The present invention relates to a process for producing an aqueous polymer dispersion by free-radically initiated aqueous emulsion polymerization, by polymerizing, in an aqueous medium, (a) 40 to 75 parts by weight of at least one vinylaromatic compound and (b) 24.9 to 59.9 parts by weight of at least one conjugated aliphatic diene (c) 0.1 to 10 parts by weight of at least one monomer comprising acid groups and (d) 0 to 20 parts by weight of at least one other monoethylenically unsaturated monomer, the amounts of the monomers (a) to (d) adding up to 100 parts by weight, in a monomer feed process in the presence of a free-radical initiator, with the proviso that the vinylaromatic compound is metered in under polymerization conditions in a continuous mass flow over a period of at least 120 minutes, the metering of the conjugated aliphatic diene is started at a time at which at least 5% and not more than 30% of the vinylaromatic compound has already been metered in in a continuous mass flow and optionally, the polymerization is initiated in an aqueous polymerization mixture comprising up to 5% of the vinylaromatic compound and comprising no aliphatic diene, and also to the aqueous polymer dispersions produced by the process and to the use of these as a binder, adhesive, sizing agent for fibers, for the production of coatings or for the production of a paper coating slip.

Hydrophobic coated paper substrate for polymer emulsion topcoats and method for making same

A hydrophobic coated paper substrate formed from a paper substrate of paper fibers and internal sizing agent, a surface size layer of one or more surface sizing starches, optionally one or more non-starch hydrophobic surface sizing agents, and optionally one or more paper pigments, on at least one surface of the paper substrate, and at least one hydrophobic pigmented coating layer of a paper pigment component and a hydrophobic pigment binder component on at least one surface size layer. Also a method for preparing such coated paper substrates.