A multilayer detergent tablet containing an outer layer, a barrier layer and an inner layer. The tablet releases sequentially ingredients contained in the outer layer and ingredients contained in the inner layer. The time interval between the release of the outer layer ingredients and the release of the inner layer ingredients is controlled by the particular choice of an ingredient for the barrier layer and the relative thicknesses of the inner layer, the barrier layer and the outer layer. The tablet is able to separate in time the dissolution of incompatible ingredients such as an enzyme and a chlorine bleach. The tablet also provides sequential release of a dishwashing composition and a rinse aid composition such that cleaning is accomplished prior to the release of the rinse aid.

Machine dishwashing detergent tablets

An article comprising a water soluble container containing a multiple use amount of a pelletized functional composition such as a fabric treatment composition, a warewashing composition, a laundry composition, a pot and pan presoak composition, a silverware presoak composition, a floor cleaner composition, a rinse additive composition, a disinfectant composition, a sanitizer composition, a general purpose cleaner composition, etc. The article may be optionally enclosed in a water impervious outerwrap. A method for using the article by placing the article inside a dispenser wherein the article is contacted with water having a sufficient temperature and pressure to dissolve the water soluble bag and the pelletized functional material contained therein in order to form a solution.

Article comprising a water soluble bag containing a multiple use amount of a pelletized functional material and methods of its use

The invention proposes to dispense a substance from a container (1) filled with a single portion of a substance. The container comprises a preformed deformable body, preferably made of sheet material, defining a filling cavity which body has an opening (6) and an integral planar circumferential rim (5) surrounding said opening, which opening is closed by a cover sheet (7) which is sealed to the circumferential rim (5) by means of a circumferential sealing seam (10). The container with the substance is opened by making use of the deformability of the cover sheet (7). A support surface supports the cover sheet (7) except at the position of a recess (10b). The recess (10b) is positioned at least over a part of the circumferential sealing seam. Upon compression of the container body the substance is pressurized and the cover sheet (7) bulges out into the recess (10b) such that the sealing seam (10) is broken at the location where the bulge is formed resulting in the container being open.

Dispensing of a substance

A method for forming solid cleaning agents starts with hydrated forms of salts that generally have considerably lower melting points in their hydrated forms The hydrated salt cleaning agents are heated to form a melted cleaning suspension Additional ingredients can be mixed into the melted cleaning suspension These additional ingredients can be selected from the group consisting of nonionic surfactants, anionic surfactants, alkaline builders, multivalent metal sequestering agents, active enzymes, soil suspending agents, defoamers, oxygenated solvents, fragrances, optical brighteners and colorants An alternative method involves the formation of a mixture of powder or granular cleaning composition components These components include at least 15 percent by weight of a moderate melting point cleaning additive A receptacle with the cleaning components is heated to a temperature above the melting point of the moderate melting point cleaning additive After sufficient time, the heating is stopped, and the mixture solidifies into a solid cleaning composition A class of novel solid cleaning compositions comprise at least 15 percent a hydrated melt salt cleaning agents The solid cleaning compositions can have additional additives

Solid cleaning compositions based on hydrated salts

A dispenser (10) for dispensing flowable materials has a container (12) having an outer wall (16) and a membrane (34) collectively defining a first chamber (18) configured to contain a flowable material. The membrane (34) extends from the outer wall (16) at an angle. The membrane (34) has a thickness and a weld seam (40), and the weld seam (40) has a thickness less than the thickness of the membrane (34).

Dispenser and process

The present invention relates to a self-closing liquid dispensing package comprising a liquid container (10) and a self-closing flat channel valve (20) in liquid communication with liquid container, wherein the liquid container comprises a reservoir portion (13) for containing liquid. The reservoir portion is made of a thermoformed thermoplastic material. In one prefered embodiment of the present invention, the self-closing flat channel valve (20) comprises a first sheet member and a second sheet member (21, 22) wherein the sheets are substantially planar, are indexed face-to-face, and are sealed together along their longitudinal edges, wherein the sheet members are sufficiently flexible to arch away from each other to form a flow channel (25) therethrough to permit a flow of contained liquid in response to external pressure applied to the liquid container, and wherein at least one of the sheet members is sufficiently resilient to return the sheet members to their original planar position when the external pressure is released. In another preferred embodiment of the present invention, the self-closing flat channel valve (20) is in liquid communication with the container via a connection portion wherein the connection portion comprises a stiffening crease (50). The package of the present invention is useful for multiple use of various liquid product having a wide range of viscosity.

Self-closing liquid dispensing package

A liquid rinse aid for use in automatic dishwashing machines comprises a low foaming ethoxylated nonionic surfactant, an organic chelating agent, a hydrotrope-water solubilizing system and 0.1-10%, by weight of the rinse aid, of magnesium, zinc, tin, bismuth or titanium ions, added in the form of a water soluble salt.

Rinse aid composition

A detergent tablet comprising an alkaline salt is provided with a coating of a hydrated salt having a melting point in the range from 30° C. to 95° C. The coating is applied in the form of a melt of the hydrated salt so that a good coating is formed without the need for lengthy drying times. Preferred materials for the coating are sodium acetate trihydrate, sodium metaborate tetrahydrate and sodium orthophosphate dodecahydrate.

Detergent tablet coating

In accordance with the present invention there is provided a package (1) having a closed position and an open position. The package (1) has a cover (10) and a base (20) including a peripheral wall (22). The peripheral wall (22) abuts against the cover when the package (1) is in its closed position so as to define an interior compartment (30). The package (1) also includes a hinge (50) connecting the base (20) and the cover (10) together along the back portion of the package which allows the cover to pivot around the hinge placing the package in its open position. The hinge is located along the exterior of the peripheral wall and includes a downwardly extending hinge arm (70) connected to the cover. The hinge arm (70) is connected to the base by a pin (55) which allows the cover and the hinge arm to pivot around the pin. The hinge arm has an outer surface (71) which makes frictional contact with the base as the hinge arm is pivoted so that the cover can pivot to a desired angle with respect to the base and remain stationary. In a preferred embodiment, the hinge arm (70) contacts the base (20) along a flexible contact area (27) on the peripheral wall and the outer surface on the hinge arm has a profiled outer surface (72) which makes greater frictional contact with the base as the cover is pivoted to greater angles with respect to the base.

Hinged package having an adjustable cover

Polygonal canister (1) with an integrated dosing device (13) designed in such a way that, when a build-up of such canisters is made, protection of the individual dosing devices is ensured, great stability of the build-up is achieved and cube efficiency for storing or transportation is maximized.

Easily stackable polygonal canister with integrated dosing device

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