Lever Brothers Company, Division of Conopco, Inc.

Conopco, Inc.

Unilever Home and Personal Care Usa, Division of Conopco, Inc.

Unilever Home & Personal Care Usa, a Division of Conopco, Inc.

Christine Ann Overton

Frederick Edmund Stocker

Vijay Mukund Naik

Graeme Neil Irving

Karnik Tarverdi

Suresh Murigeppa Nadakatti

Peter Stewart Allan

Michael Andrew Browne

Paul Lloyd

John Martin Cordell

Sudhir Mani

John Colin Wahlers

In an apparatus and process for manufacturing a detergent bar, the bar comprises a first distinct zone comprising a first component and at least a second distinct zone comprising a second component. In an injection step, the first and second components are injected into the mould cavity via nozzle means having a first orifice through which the first component is injected. The second component is injected through a second orifice of the nozzle means. The first and second components solidify in the cavity to form the bar. The interface between the zones may be non-planar and/or such that the zones cannot be separated by a unidirectional cut. The first and second zones may respectively comprise detergent and a benefit agent. The first and second zones may differ in texture.

Apparatus for the production of a detergent bar

In an apparatus and process for manufacturing a detergent bar, the bar comprises a first distinct zone comprising a first component and at least a second distinct zone comprising a second component. In an injection step, the first and second components are injected into the mold cavity via nozzle means having a first orifice through which the first component is injected. The second component is injected through a second orifice of the nozzle means. The first and second components solidify in the cavity to form the bar. The interface between the zones may be non-planar and/or such that the zones cannot be separated by a unidirectional cut. The first and second zones may respectively comprise detergent and a benefit agent. The first and second zones may differ in texture.

Process and apparatus for the production of a detergent bar

Process for the production of a detergent bar

A detergent bar is made by (1) applying pressure to a detergent composition to deliver it to a substantially closed mold at a temperature less than 70&deg; C.; (2) ensuring the pressure on the composition at point of entry is greater than 29.4 psi under the action of an injector head for at least part of the time over which the composition enters the mold; (3) cooling in the mold to form bar; and (4) removing.

Bar made by delivering composition under pressure of injector head at entry to substantially closed mold

A process for forming detergent bars comprising applying pressure to a detergent composition contained within a mould cavity. The detergent composition in the mould is in a substantially fluid or semi-solid state and the mould is substantially full before the pressure is applied.

Process for the production of a detergent composition

A process for forming detergent bars by injection moulding in which a pressure is applied to a partially structured detergent composition to deliver it to a mould. The detergent composition can be delivered to the mould in a substantially semi-solid state, at a temperature below 70&deg; C. and at a pressure at the point of injection of greater than 20 psi. Apparatus for forming detergent bars according the invention are also described

Process for molding of a detergent composition

Growing community of inventors

Bebington, United Kingdom

Christine Ann Overton