Abstract:
Disclosed herein are water-soluble films including a polyvinyl alcohol (PVOH) polymer and a combination of at least three plasticizers. The combination of plasticizers includes dipropylene glycol as a first plasticizer, a sugar alcohol such as sorbitol as a second plasticizer, and a polyol such as glycerin as a third plasticizer. When the PVOH polymer and plasticizers are blended in particular proportions and/or selected with regard to various criteria related to physical and chemical film properties, the resulting water-soluble film formed from the PVOH resin blend exhibits beneficial combinations four) of aged tensile strength, aged melting transition delta elevation, aged adhesion value, and/or resistance to seal peeling, which provide strong film seals that retain their water-solubility characteristics.
Abstract:
A stain removal device adapted to at least partially surround a stain located on a fabric to activate in a targeted manner includes a shell comprising a wall with an inner surface, an outer surface, a rim defining an aperture in the shell, the rim being defined by the inner and outer surfaces and the inner surface defining a shell cavity, at least one opening extending through the wall of the shell between the inner and outer surfaces of the shell, a dispensable cleaning agent at least partially disposed within the shell cavity, and an attachment portion at least partly coupled to the shell. The attachment portion is configured to removably couple the stain removal device to a fabric or article of clothing such that the rim of the shell contacts the fabric and at least partially surrounds a stain located on the fabric. So configured, the dispensable cleaning agent may activate in a targeted manner relative to the stain during a wash cycle.
Abstract:
Disclosed herein are water-soluble films and resulting packets including a water-soluble film coated by a powder, wherein the powder includes a mixture of a powdered lubricant and an active agent. Optionally, the active agent may be encapsulated, e.g. microencapsulated, for release of the active agent through mechanisms including, but not limited to, mechanical rupture, melt, ablation, dissolution, diffusion, biodegradation, or pH-controlled release. Active ingredients described include enzymes, oils, flavors, colorants, odor absorbers, fragrances, pesticides, fertilizers, activators, acid catalysts, metal catalysts, ion scavengers, bleaches, bleach components, fabric softeners and combinations thereof. Examples of packet fills include laundry detergents, bleach and laundry additives, fabric care, dishwashing, hard surface cleaning, beauty care, skin care, other personal care, and foodstuffs.
Abstract:
A web of cleaning products and a method of manufacturing the same is disclosed. The web includes a carrier sheet having a plurality of depressions each filled, and in direct contact with, at least one cleaning composition. A plurality of internal lids that correspond with the plurality of depressions are sealed to the carrier sheet in a manner covering the plurality of depressions. Additionally, a plurality of external lids that correspond with the plurality of internal lids are sealed to the carrier sheet and cover the plurality of internal lids. The carrier sheet and external lids may be made of a water-resistant material, and the internal lids may be made of a water-soluble material. In one embodiment, the internal lids may be omitted, and instead the depressions be filled with water-soluble pouches, each of which contains a respective dose of a cleaning composition.
Abstract:
A product container (10) including a protective housing (12) and a web (14) of unit dose products (40) is disclosed. The web is arranged in a hollow interior (32) of the protective housing. The web includes a plurality of water-soluble or otherwise degradable (e.g., UV degradable) pouches (40) removably attached to a flexible carrier sheet. Each of the water-soluble pouches contains at least one cleaning composition (44). The web is either formed in a roll or a z-folded configuration with a plurality of folds. Also disclosed is a product container including a protective sleeve (212) filled with a plurality of water-soluble pouches (216). Each of the water-soluble pouches contains at least one cleaning composition (234) and forms a friction fit with one or more interior walls of the water-insoluble protective sleeve. A re-sealable plug (222, 224) is arranged to cover an open end of the water-insoluble protective sleeve.
Abstract:
Disclosed herein are capsules for delayed release of an active ingredient contained therein, in particular water-soluble capsules for delayed release of water-sensitive, gas-generating compositions into an aqueous liquid medium. The delayed release capsules incorporate one or more gas-relief pinholes for gas-generating water-sensitive compositions contained in the capsules, such as inorganic bleach or other alkaline compositions intended for delayed release into a wash medium during a laundry cycle. The pinholes permit gas generated within the capsule due to exposure to environmental water vapor to escape from the capsule interior, preventing pressure build-up and capsule deformation during storage. The pinholes are sized to prevent or otherwise substantially limit the passage of liquids when submerged in a liquid medium (e.g., liquid water in an aqueous liquid medium). Related articles and methods for delivering the capsules in combination with a detergent or other laundry composition are also disclosed.
Abstract:
Disclosed herein are sealing solutions for sealing water-soluble films, in particular aqueous mixtures including one or more polymeric solvents such as polyols. Aqueous sealing solutions including a relatively dilute solvent for one or more polymeric components of the water-soluble film (e.g., water-soluble polymeric components thereof, such as polyvinyl alcohol (PVOH)) can exhibit one or more benefits, including a reduction in dissolution of the film by the sealing solution and an increase in seal strength. Also disclosed are sealed articles formed with the sealing solutions, for example water-soluble packets containing various liquid or solid compositions.
Abstract:
Water-soluble articles such as films, which can be made resistant to contact with small amounts of water, and methods of making the same are disclosed. The water-soluble article is formed from a water-soluble film-forming composition, such as polyvinyl alcohol, and includes a salt that is distributed more closely to at least one of the surfaces than throughout its thickness.