Abstract: A method for separating water and at least one lignin fraction, lignin derivatives, low-molecular carboxylic acids, sodium sulfate, or a mixture thereof from filtrates originating from a black liquor of a kraft process. Black liquor is concentrated to a solids content between 25 and 55 wt. %. A first separation step, polymer lignin with a number average of the molecular mass distribution of >6 kDa is precipitated and filtered out by lowering the pH value of the black liquor, a first filtrate is obtained which is acidified with sulfuric acid; a formed precipitate consisting of lignin is separated by means of filtration; a second acid filtrate is obtained, cooled to a temperature less than 10° C., a fraction consisting substantially of inorganic salts is crystallized out; the formed precipitate is filtered off, a third filtrate is obtained which contains low-molecular carboxylic acid-soluble lignin and groups of the inorganic salts.

Abstract: A water vapour-permeable and hot water-resistant paper made substantially of cellulose and of manufacturing additives required for cellulose production, such as pH-value adjusting agents based on acids and/or bases, the paper exclusively contains cellulose with fibre lengths of at least 2.0 mm as a length-weighted mean, in particular of at least 2.5 mm as a length-weighted mean, wherein the cellulose forming the paper is a cellulose ground to a consistency of 30-35% by high-consistency grinding and possibly to a consistency of 4-6% by low-consistency grinding, a proportion of fines in the paper is set at values smaller than 6.5% and the pH value is set in the pseudo-neutral range, in particular at values under 7.5, preferably at values between 6.6 and 7.4, and an elongation of the paper in the machine direction is ?3%.

Abstract: The invention relates to an apparatus, arrangement and method for packaging loaded goods (2) that are palleted or arranged on a pallet (1) by winding a paper web (3) around the goods helically whilst simultaneously unwinding the paper web (3) from a paper roll (4), comprising:—a rotary device (5) for rotating the pallet (1) and the loaded goods (2) located on the pallet (1) about a pallet rotational axis (6), —a roll holder (7) with at least one holding extension (8) for rotatably holding a paper roll (4) about a roll rotational axis (9), —an output device (10) for outputting the paper web (3) unrolled from the paper roll (4) in an output direction (11) pointing towards the rotary device (5) or the loaded goods (2), and—a lifting device (12) for changing the height (13) of the output of the paper web (3) from the output device (10), a pivoting device (14) with a pivoting carrier (16) pivotable about a pivot axis (15) being provided to tilt the output direction (11) of the paper web (3).

Abstract: A pallet outer packaging paper, to an outer packaging method using this pallet outer packaging paper as an outer packaging material, and to a method for producing such a pallet outer packaging paper. The pallet outer packaging paper comprises at least 70 wt. % cellulose fibres having a length-weighted average fibre length in accordance with ISO 16065-2:2014 of 1.8 mm to 2.8 mm, and has a bending stiffness in accordance with ISO 2493-1:2010, using a bend angle of 15° and a test bend length of 10 mm, of at most 35 mN in the machine direction and at most 30 mN in the transverse direction, and a bending stiffness index of at most 100 Nm6/kg3 in the machine direction and at most 80 Nm6/kg3 in the transverse direction, and a grammage of 50 g/m2.

Abstract: A packaging paper for sharp-edged objects and/or objects having unevenly arranged, protruding, substantially non-deformable elevations on at least one of the surfaces of the object, consisting of kraft pulp as the main constituent and fillers, starch, sizing agent and additional process aids. The packaging paper containing at least 95% primary pulp having a length-weighted average fiber length of at least 2.0 mm and cationic starch and other process aids. The packaging paper has an elongation at break in the machine direction (MD) according to ISO 1924-3:2005 of at least 6.0%, a puncture energy index according to DIN EN 14477:2004 at a test speed of 10.0 mm/min, measured on any side of the packaging paper, in the range of 30 to 75 mJ·m2/kg and a kappa number according to ISO 302:2015 of between 35 and 38.

Abstract: A tray package unit outer packaging paper (1), for packaging tray packing units (2), to a method for packaging tray packing units (2) using such a tray package unit outer packaging paper (1), to a method for producing same, and to use of an outer packaging material for packing a tray packaging unit (2). The tray package unit outer packaging paper (1) has a first face (3) and a second face (4) and is made of at least one aqueous suspension (5) comprising a cellulose material (6) and optionally additives (7). The first face (3) is compressed with a linear load of 80 kN/m to 500 kN/m. Additionally, the tray package unit outer packaging paper (1) has a wet tensile strength index, measured according to ISO 3781:2011, in the machine direction of at least 10 Nm/g auf.

Abstract: A kraft paper having a pulp according to ISO 536 of between 60 g/m2 and 120 g/m2, a density of between 680 kg/m3 and 720 kg/m3, and a tensile strength index in the machine direction according to ISO 1924-3 of between 79 kNm/kg and 98 kNm/kg, the kraft paper optionally having a coating and/or an auxiliary element on at least one side. The kraft paper is made of a pulp having an average pulp fibre length of 2.2 mm to 2.7 mm with a minimum pulp content of at least 96% wt. %; a pore volume of the uncoated kraft paper is between 200 ?l/g and 220 ml/g; in the thickness direction of the paper, there are regions of different porosities; and at least one region has pores with a pore diameter of less than or equal to 0.3 ?m. The invention also relates to a paper sack.

Abstract: The invention relates to a kraft paper with an elongation at break in the machine direction of at least 7.5% and an elongation at break in the transverse direction of at least 7.5%, wherein the elongation at break in the machine direction and the elongation at break in the transverse direction differ by less than 2.5%, in particular by less than 1.5%, and the bending stiffness in the machine direction and the bending stiffness in the transverse direction equal at least 50 mN. The invention additionally relates to a packaging material, to a method for producing a packaging material, and to a method for producing a kraft paper.

Abstract: A tray package unit outer packaging paper (1), for packaging tray packing units (2), to a method for packaging tray packing units (2) using such a tray package unit outer packaging paper (1), to a method for producing same, and to use of an outer packaging material for packing a tray packaging unit (2). The tray package unit outer packaging paper (1) has a first face (3) and a second face (4) and is made of at least one aqueous suspension (5) comprising a cellulose material (6) and optionally additives (7). The first face (3) is compressed with a linear load of 80 kN/m to 500 kN/m. Additionally, the tray package unit outer packaging paper (1) has a wet tensile strength index, measured according to ISO 3781:2011, in the machine direction of at least 10 Nm/g auf.

Abstract: The invention relates to a method for producing paper sacks comprising the following steps: providing a tube section (2) that comprises at least a first paper layer (4) and a second paper layer (6), wherein the first tube section (2) has a first end (8) and an opposite second end (10), and a longitudinal extension which extends from the first end (8) to the second end (10), and the first end (8) is formed by the first paper layer (4) and the second end (10) by the second paper layer (6), forming a first base (12) at the first end (8) and forming a second base (14) at the second end (10).

Abstract: The invention relates to a method for waste-heat recovery comprising the following steps: providing a first process unit (10), which requires thermal energy, wherein the first process unit (10) comprises a heating burner (15, 16), which is fluidly connected to a fuel supply line (100, 101, 102) and to a combustion-air supply line (112, 113); providing a second process unit (20), in which thermal energy is generated, wherein the second process unit (20) comprises a combustion furnace (21), which is designed to burn waste materials (201) containing sulfur compounds; burning waste materials (201) containing sulfur compounds to generate hot combustion exhaust gas (210) which contains sulfur compounds; discharging the hot combustion exhaust gas (210) from the second process unit (20) and introducing the combustion exhaust gas (310) into a waste-heat recovery device (3) comprising a waste-heat exchanger (31, 32); transferring thermal energy from the combustion waste gas (310) by the waste-heat exchanger (31, 32) to

Abstract: A packaging paper for sharp-edged objects and/or objects having unevenly arranged, protruding, substantially non-deformable elevations on at least one of the surfaces of the object, consisting of kraft pulp as the main constituent and fillers, starch, sizing agent and additional process aids. The packaging paper containing at least 95% primary pulp having a length-weighted average fiber length of at least 2.0 mm and cationic starch and other process aids. The packaging paper has an elongation at break in the machine direction (MD) according to ISO 1924-3:2005 of at least 6.0%, a puncture energy index according to DIN EN 14477:2004 at a test speed of 10.0 mm/min, measured on any side of the packaging paper, in the range of 30 to 75 mJ·m2/kg and a kappa number according to ISO 302:2015 of between 35 and 38.

Abstract: Transparent paper consisting of a coated or chemically treated kraft paper, wherein the kraft paper is formed from a bleached, low-consistency and possibly high-consistency pulp beaten with a beating degree of at least 38° SR, which is formed to an extent of at least 30%, and at most 60% of softwood pulp and to an extent of at least 35%, of hardwood pulp, and optionally further fibrous materials, 0.5 to 2.5% cationic starch, processing aids, 0.1 to 0.4% sizing agent and optionally up to 4% fillers, and wherein the kraft paper is mechanically surface-treated with further substances selected from PEG, glycerol, polyvinyl alcohol or mixtures of two or more thereof, and starch, as well as methods for producing transparent paper and forming a kraft pulp.

Abstract: The invention relates to a method for producing a paper web which is suitable for and/or designed to form a layer, in particular the core layer of a laminated board, by impregnating the paper web with a resin and subsequently curing the resin, comprising:—a first paper layer (1) made of a first material (3), and—a second paper layer (2) which is connected to the first paper layer (1) over the surface thereof and which is made of a second material (4), wherein—the first material (3) of the first paper layer (1) has a higher degree of absorbency for the resin than the second material (4) of the second paper layer (2). The invention is characterized in that—the second paper layer (2) is provided with an agent (5) for increasing the absorbency for the resin.

Abstract: A packaging bag has a bag body formed from a flat web and has a first front wall and a second front wall as well as a stand-up bottom formed in a bottom section by folding and gluing the front walls. The flat web has a varnish coating on an outside of the bag body, wherein the first front wall has an adhesive region free of the varnish coating in the bottom section of the bag body.

Abstract: A packaging bag includes a web having a front wall, a rear wall projecting beyond the front wall on an open top bag edge, stacking openings disposed in the section of the rear wall projecting beyond the front wall, the web being formed at least in part of paper. The front wall and the rear wall have chamfered corners at a bottom bag edge opposite the top bag edge.

Abstract: The invention relates to an apparatus, arrangement and method for packaging loaded goods (2) that are palleted or arranged on a pallet (1) by winding a paper web (3) around the goods helically whilst simultaneously unwinding the paper web (3) from a paper roll (4), comprising:—a rotary device (5) for rotating the pallet (1) and the loaded goods (2) located on the pallet (1) about a pallet rotational axis (6),—a roll holder (7) with at least one holding extension (8) for rotatably holding a paper roll (4) about a roll rotational axis (9),—an output device (10) for outputting the paper web (3) unrolled from the paper roll (4) in an output direction (11) pointing towards the rotary device (5) or the loaded goods (2), and—a lifting device (12) for changing the height (13) of the output of the paper web (3) from the output device (10), a pivoting device (14) with a pivoting carrier (16) pivotable about a pivot axis (15) being provided to tilt the output direction (11) of the paper web (3).

Abstract: A pallet outer packaging paper, to an outer packaging method using this pallet outer packaging paper as an outer packaging material, and to a method for producing such a pallet outer packaging paper. The pallet outer packaging paper comprises at least 70 wt. % cellulose fibres having a length-weighted average fibre length in accordance with ISO 16065-2:2014 of 1.8 mm to 2.8 mm, and has a bending stiffness in accordance with ISO 2493-1:2010, using a bend angle of 15° and a test bend length of 10 mm, of at most 35 mN in the machine direction and at most 30 mN in the transverse direction, and a bending stiffness index of at most 100 Nm6/kg3 in the machine direction and at most 80 Nm6/kg3 in the transverse direction, and a grammage of 50 g/m2.

Abstract: A film composite for film packaging, having a cover film composed of a polyolefin and a barrier layer, wherein the cover film has an imprinting, at least in part, on a side that faces the barrier layer. An equalization layer is arranged between the cover film and the barrier layer, which layer borders, at least in part, on the imprinting, wherein the equalization layer is formed from a hardened material on the basis of polyurethane.

Abstract: Surface sizing agents for paper and/or cardboard contain lignin and lignin sulfonates and at least one further surface-finishing substance, wherein it contains 0.1 to 50% by weight, preferably 5 to 20% by weight of a lignosulfonate source, 0.1 to 50% by weight, preferably 5 to 25% by weight of lignin, in particular kraft lignin and at least one further surface-finishing substance selected from the group of hydroxylated polymers, such as starch, PVOH, natural or synthetic hydrophobic materials, such as tall oil, tall oil soap or refined products thereof or hydrophobic materials, such as synthetic or natural waxes, styrenes, butadiene, acrylates, alkyl ketene dimer and oils thereof, such as AnKD, alkenyl succinic acid anhydride and the remainder water as a solvent and/or suspending agent, as well as processes for the production and use of the surface sizing agent.