A process for sealing a first water-soluble polyvinylalcohol film to a second water-soluble polyvinylalcohol film.

Water-soluble films, water-soluble unit dose articles, and related methods of making and using the same.

A portion unit of a cleaning agent, having a cleaning agent composition and a chamber which receives the cleaning agent composition and includes a chamber wall that delimits the chamber and has a layer thickness D. The chamber includes a main volume and at least one auxiliary volume, and the cleaning agent composition can freely enter the at least one auxiliary volume from the main volume and vice versa, wherein the chamber wall is formed in a transition region between the main volume and the at least one auxiliary volume in a substantially stepped manner. The invention additionally relates to a method for producing such a portion unit.

Water-soluble films, water-soluble unit dose articles, and related methods of making and using the same.

A laundry bead molding mold is disclosed, including a first mold cavity and a second mold cavity which are separated from each other and could be filled with detergent or detergent additives to meet different washing demands. The first mold cavity has two opposite side walls at a certain angle, which could ensure the shape of the bead product is a preset shape. The mold could be used to mold a laundry bead having at least two cavities, and could obtain a multifunctional laundry bead, has a simple structure and a high yield of the formed bead. A laundry bead formed by the mold is also disclosed, including a plurality of beads, which facilitates the washing process. A laundry bead molding method is also disclosed.

A portion unit of a cleaning agent, having a cleaning agent composition and a chamber which receives the cleaning agent composition and includes a chamber wall that delimits the chamber and has a layer thickness D. The chamber includes a main volume and at least one auxiliary volume, and the cleaning agent composition can freely enter the at least one auxiliary volume from the main volume and vice versa, wherein the chamber wall is formed in a transition region between the main volume and the at least one auxiliary volume in a substantially stepped manner. The invention additionally relates to a method for producing such a portion unit.

A method for producing a portion unit of a detergent by inserting a base element made from a first film portion into a deep-drawing mold that forms a holding volume from the first film portion, the holding volume having a plurality of chambers spaced apart from one another; pouring at least one detergent composition into the chambers; placing a cover element made from a second film portion onto the filled chambers; connecting the cover element to the base element, which forms a film wrapping, sealing seams being formed between adjacent wall portions of the chambers; removing the portion unit from the deep-drawing mold, wherein the outside of the film wrapping is then wetted at least in the region of the adjacent wall portions and, by pressure being exerted, the sealing seams are compressed and the adjacent wall portions are brought into contact with one another and interconnected.

A laundry bead molding mold is disclosed, including a first mold cavity and a second mold cavity which are separated from each other and could be filled with detergent or detergent additives to meet different washing demands. The first mold cavity has two opposite side walls at a certain angle, which could ensure the shape of the bead product is a preset shape. The mold could be used to mold a laundry bead having at least two cavities, and could obtain a multifunctional laundry bead, has a simple structure and a high yield of the formed bead. A laundry bead formed by the mold is also disclosed, including a plurality of beads, which facilitates the washing process. A laundry bead molding method is also disclosed.

A method for producing a portion unit of a detergent by inserting a base element made from a first film portion into a deep-drawing mold that forms a holding volume from the first film portion, the holding volume having a plurality of chambers spaced apart from one another; pouring at least one detergent composition into the chambers; placing a cover element made from a second film portion onto the filled chambers; connecting the cover element to the base element, which forms a film wrapping, sealing seams being formed between adjacent wall portions of the chambers; removing the portion unit from the deep-drawing mold, wherein the outside of the film wrapping is then wetted at least in the region of the adjacent wall portions and, by pressure being exerted, the sealing seams are compressed and the adjacent wall portions are brought into contact with one another and interconnected.

An example system comprises a water-soluble unit dose article comprising a fibrous non-woven sheet shaped to form a sealed internal compartment and a granular laundry detergent comprised within the internal compartment. The sheet comprises fibres which comprise polyvinyl alcohol polymer. The granular laundry detergent comprises perfume particles. The system also comprises sealing jaws, whereby at least one of the sealing jaws is a heated sealing jaw. A top seal of the internal compartment is sandwiched between the jaws. A first of said jaws comprises a flat portion along a longitudinal direction of the seal. The flat portion has a flat portion width along a direction perpendicular to the longitudinal direction of the seal. The flat portion width has a dimension of more than 3 times and of less than 20 times a thickness of the water-soluble fibrous non-woven sheet.