Cosmetic formulations
AssigneeThe Boots Company PLC
InventorsRosemary Collins, Sandra Cox
Life of this patent
Estimating the term…
Abstract
A novel process for the manufacture of a lipstick is described which comprises melting a combination of colour pellets together with a measured amount of an oil blend with mixing to give a lipstick base composition and moulding said base composition into a lipstick of a predetermined colour. A colour pellet comprises: 1-50% by weight of a wax component; b) 30-65% by weight of an oil component; and c) 10-35% by weight of a pigment and/or a pearlising agent. A kit of parts suitable for implementing the process is described. The process is particularly suitable for the clean and efficient manufacture of lipsticks, of a wide range of colour, at the point of sale.
Claims10
A process for the manufacture of a lipstick comprising the steps of
- melting a combination of color pellets with a measured amount of an oil blend to form a melted product;
- mixing the melted product to form a homogeneous lipstick base composition;
- and
- moulding said base composition into a lipstick of a predetermined color;
- wherein each color pellet comprises
- a) 1-50% by weight of a wax component comprising as least one cosmetically acceptable wax selected from the group consisting of a plant wax, a vegetable wax, a paraffin wax, an animal wax, and a synthetic wax,
- b) 30-65% by weight of an oil component selected from the group consisting of at least one cosmetically acceptable oil and at least one cosmetically acceptable fat, said cosmetically acceptable oil being selected from the group consisting of a natural oil, a synthetic ester, a fatty oil and a fatty alcohol, and said cosmetically acceptable fat being selected from the group consisting of an animal fat, a vegetable fat and a mineral fat, and
- c) 10-35% by weight of at feast one member selected from the group consisting of a pigment and a pearlising agent;
- and
- wherein the oil blend comprises a mixture of more than one cosmetically acceptable oils selected from the group consisting of natural oils, synthetic esters, fatty oils and fatty alcohols and wherein the lipstick further comprises at least one ingredient selected from the group consisting of gloss modifiers texture modifiers, moisturizing agents, soothing agents, conditioners, vitamins, sunscreens, preservatives, and antioxidants.
A process for the manufacture of a lipstick comprising the steps of
- melting a combination of color pellets with a measured amount of an oil blend to form a melted product;
- mixing the melted product to form a homogeneous lipstick base composition;
- and
- moulding said base composition into a lipstick of a predetermined color;
- wherein each color pellet consists essentially of
- a) 1-50% by weight of a wax component comprising as least one cosmetically acceptable wax selected from the group consisting of a plant wax, a vegetable wax, a paraffin wax, an animal wax, and a synthetic wax,
- b) 30-65% by weight of an oil component selected from the group consisting of at least one cosmetically acceptable oil and at least one cosmetically acceptable fat, said cosmetically acceptable oil being selected from the group consisting of a natural oil, a synthetic ester, a fatty oil and a fatty alcohol, and said cosmetically acceptable fat being selected from the group consisting of an animal fat, a vegetable fat and a mineral fat,
- c) 10-35% by weight of at least one member selected from the group consisting of a pigment and a pearlising agent, and
- d) at least one ingredient selected from the group consisting of gloss modifiers texture modifiers, moisturizing agents, soothing agents, conditioners, vitamins, sunscreens, preservatives, and antioxidants;
- and
- wherein the oil blend comprises a mixture of more than one cosmetically acceptable oils selected from the group consisting of natural oils, synthetic esters selected from the group consisting of pentaerythritol tetracaprylate and pentaerythritol tetracaprate, fatty oils and fatty alcohols.
Dependencies are inferred from the claim text.