ES2245788T3 - PERFUME SUPPLY SYSTEM. - Google Patents

Abstract

A SUITABLE PERFUME VEHICLE IS DESCRIBED FOR USE IN DETERGENT COMPOSITIONS, IN PARTICULAR IN NON-SOAPY DETERGENT COMPOSITIONS, CONTAINING A SOLID INSOLUBLE MINERAL VEHICLE IN WATER, A PERFUME COMPOSITION AND A PERFUME PERFUME PERFUME. THE PERFUME VISCOSIZER IS PREFERRED POLYETHYLENE GLYCOL WITH A MOLECULAR WEIGHT FROM 400 TO 20000.

Description

Perfume supply system.

The present invention relates to a carrier of perfume for use in detergent compositions, in particular in non-soapy detergent compositions, to the use of said perfume carriers to perfume detergents and detergent compositions containing said perfume carrier.

The bars or tablets for washing, preferably non-soapy washing bars, are prepared usually by mixing at high temperatures (90 ° C approximately) of compositions containing minerals, surfactants (detergents) and perfumes. Said mixture is extruded, of convenient form at high temperature, for example 80 ° C approximately.

Perfume is a key ingredient of compositions because it strongly determines the first choice of consumer. Due to the high preparation temperatures of bars for washing, part of the perfume is lost by evaporation in The manufacturing plant. A way to limit the loss of perfume is to design said perfume using perfumery materials with a low vapor pressure This mode of preparation is not completely satisfactory, since it does not completely eliminate losses of perfume and greatly limits the variety of the palette or range of fragrances used by the perfumer to create perfumes

The present invention in one aspect relates to perfume-containing carriers that limit perfume loss during the manufacture of detergent compositions, in particular non-soapy detergent compositions, especially washing bars, that is, bars composed of detergent, and / or improve perfume storage stability of detergent compositions, in particular compositions of non-soapy detergent, especially powdered detergents and washing bars mentioned above. This effect allows a Improved perfume supply in fresh detergent products prepared and in bars and powders for washing stored at high temperatures and in high humidity conditions.

Numerous techniques have been used to improve the improved supply of perfume to factories.

Techniques of microencapsulated (USP Patent No. 4,145,184, USP Patent No. 4,234,627, USP Patent No. 4,096,072, USP Patent No. 4,402,856, WO 92/18601). The technique is satisfactory, but the Costs are high.

Perfumes can also be included in a non-water soluble matrix (USP Patent No. 4,152,272).

Other methods consist of adsorption of perfumes on various porous substrates such as silica, zeolite, clay or polymers Thus, USP Patent No. 4,539,135 discloses a carrier containing perfume for use as an additive of mixed together with a certain detergent composition or additive for a washing solution separated from the detergent composition. Said carrier consists essentially of discrete particles that contain at least 90% by weight of clay, in particular bentonite and / or zeolite, and less than 5% by weight of compounds surfactant detergent and a perfume, which is in a liquid state to room temperature and is adsorbed and / or absorbed by said particles In addition, WO94 / 28107 discloses a perfume delivery composition in the form of particles that comprise a solid, water insoluble porous carrier comprising a natural or synthetic zeolite that has a nominal pore size of at least 6 Angstrom, a perfume that is incorporated releasable (trapped) in the pores of said zeolite carrier for providing a perfumed zeolite and a matrix coated in said scented zeolite comprising a water soluble composition in which said perfume is substantially insoluble. The mentioned matrix forms a protective barrier that traps and maintains the perfume inside the pores of the zeolite. This matrix includes between 0% and 80% by weight of at least one solid polyol containing more than 3 hydroxyl groups and from 20% to 100% by weight of a diol or fluid polyol in which the perfume is substantially insoluble and in which the solid polyol is substantially soluble. The polyol or diol is selected from the group consisting of glycerol, ethylene glycol, and diglycerol.

Such embodiments do not solve the problem of Perfume losses due to evaporation during the production of detergent compositions at elevated temperatures, as has been noted earlier in this document. Therefore the objective of the present invention is to disclose a carrier of perfume for detergent compositions, in particular for non-soapy detergent compositions, having a low rate of loss of perfume, especially at high temperatures, for example when washing bars or powder detergents are produced and / or stored.

The present invention discloses means economic and, in particular, simple to overcome the inconveniences and disadvantages of the prior art.

The following aspects make up the present invention:

In one aspect, the present invention relates to compositions, in particular granular compositions, which allow an improved perfume supply when introduced in detergents, in particular non-soap detergents, as per example washing bars or powder detergents.

Said aspect of the present invention encompasses a perfume carrier suitable for use in compositions of detergent, in particular detergent compositions not Soaps, which consist of a solid mineral insoluble in water, is that is, an inorganic carrier, a perfume (composition) and an agent Water and perfume soluble perfume viscosifier.

The role of the solid carrier ("the mineral") It is mainly to produce solid granules by adsorption of a perfume / viscosifying agent mixture. It is usually present from 20% to 90%, preferably from 50% to 90% of a solid carrier selected among the materials in Gross normally used in detergent products. The material of the solid carrier can be silica, or silicate, in particular a clay, a phosphate or a mixture thereof. The bearers Preferred solids consist of bentonite, bentonite / tripolyphosphate sodium (STPP), zeolite, bentonite / zeolite, bentonite / silica.

The term "zeolite" refers to any crystalline aluminosilicate material of natural or synthetic origin having a zeolite structure, for example with the following formula:

(Na 2 O) x. Al_ {2} O_ {3}. (SiO_ {2}) and. zH 2 O

A preferred zeolite is the Zeolite A produced by Degussa under the trade name of HAB A40.

Bentonite is a clay, for example the marketed under the trade name Laundrosil DGA by Süd Chemie or Mineral Colloid by Benton Clay Company.

Silica is, for example, the one produced by Taste under the trade name Supernat 22S.

Sodium tripolyphosphate is a material in common gross used in detergent products; its purpose is mainly the formation of calcium ion complexes. A appropriate material is that produced by Albright and Wilson under the trade name Empiphos STPP.

The term "perfume" means the mixture required of any perfume material of synthetic origin and / or natural, which is appropriate for perfuming bars of soap and detergents May contain (small amounts of) solvents and usual diluents intended for this purpose. He Polyethylene glycol is an example of such solvents.

The term "perfume composition", such as used in connection with the present invention, refers to solutions of scented materials.

In the context of the present invention, "perfume" and "perfume composition" will be used indistinctly.

The role of the perfume viscosifying agent is increase the viscosity of the perfume in an amount that decreases its evaporation and provide greater stability. For this purpose you can be used between 1% and 60% polyethylene glycol, especially with a molecular weight between 400 and 20000, more preferably between 2000 and 10000

Perfume wearers are prepared preferably in the form of granules by spraying a mixture of the viscosifying agent and the perfume on the solid carriers in a granulator, or simply mixing the perfume / perfume viscosifying agent compound with solid carriers.

The appropriate concentrations (% weight / weight) of The components in perfume carriers are the following:

Carrier solid 20-90 50-90 40-60 Agent viscosifier 0.1-20 0.2-5 0.5-3 Fragrance 1-60 5-50 10-40

An effective amount of the perfume carrier of the present invention, especially 0.5-20% approximately, it must be present in the finished product, so that the concentration of the perfume in the final product must be conveniently from about 0.1 to 4%, preferably between 0.1 and 2%.

The detergent composition contains between 4% and 80% of a detergent and between 0.5% and 20% of a carrier of perfume according to the present invention. The composition of detergent has a perfume concentration between 0.1% and 4%, in particular between 0.1 and 2%. Said detergent composition in the form of bars for washing with said composition is carried out through a process that includes the steps of:

a) mixing of the usual components of a detergent composition and a perfume carrier according to the present invention, and

b) extrusion of said mixtures.

Example 1

Perfume carriers were prepared with the following compositions:

Ingredients B2 Bentonite 10 Zeolite 70 Polyethylene Glycol 4000 one Fragrance 19

B2 was added to a bar composition for washing and a powder detergent composition to reach the 0.15% perfume level in the final compositions and produced bars for washing and washing powder, respectively.

The storage stability of the products with respect to products with the same formulation but in the that the perfume was introduced into the detergent product with a 0.2% level (B1) and stored at room temperature. The B2 products were stored for 2 weeks at 43 ° C (for the powder composition) and 55 ° C (for washing bars). The Products were evaluated by olfactory tests. Be They found the following results:

Formulation with Bar stability for Stability Detergent washed in powder 0.2% perfume no protected B1 Good Good 0.15% perfume protected B2 Equivalent to B1 Equivalent to B1

From these results it can be concluded that the use of the perfume carrier in accordance with this invention improves perfume stability when products materials are stored at high temperatures, i.e. recorded perfume losses at high temperatures.

Example 2

Perfume-bearing granules were prepared with The following composition:

Ingredients R1 Bentonite 10 STPP 70 Polyethylene Glycol 4000 one Fragrance 19

The granules were introduced in a detergent powder to reach a perfume concentration of 0.15% in the final product, that is, a product with protected perfume. Be evaluated the performance of the perfume under different conditions by an olfactory test, as shown below, with respect to a reference product, that is to say a pattern, containing 0.2% of unprotected perfume.

The evaluation was carried out by a panel trained composed of 10 people. The products were evaluated with a scale of 0 to 4, 0 being the worst score and 4 the best.

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The following results were obtained:

Formulation with After clarifying In washed Pure 0.2% perfume no protected Reference 3 3 3 0.15% perfume protected R1 3.25 3.25 3.40

These results show that the perfume Protected had better performance.

Claims (15)

1. Perfume carrier appropriate for the use in detergent compositions, in particular non-soapy detergent compositions, consisting of a water-insoluble solid mineral carrier, a composition of perfume and a soluble perfume viscosifying agent in said fragrance. 2. Perfume carrier according to claim 1, in which the solid carrier material is silica, a silicate, in particular a clay, a phosphate or a mixture of same. 3. Perfume carrier, according to any of the claims 1 or 2, wherein the solid carrier material is bentonite, a mixture of bentonite with zeolite or a mixture of bentonite with sodium tripolyphosphate, or a mixture of bentonite with silica. 4. Perfume carrier, according to any of the claims 1 to 3, wherein said perfume contains organoleptic active ingredients of natural origin and / or synthetic. 5. Perfume carrier, according to any of the claims 1 to 4, wherein the viscosifying agent of perfume is polyethylene glycol with a molecular weight between 400 and 20,000 6. Perfume carrier, according to any of the claims 1 to 5, wherein the solid carrier is present in an amount between 20% and 90%, preferably between 50% and 90%. 7. Perfume carrier, according to any of the claims 1 to 6, wherein the viscosifying agent of perfume is present in an amount between 0.1% and 20%, preferably between 0.2% and 5%. 8. Perfume carrier, according to any of the claims 1 to 7, wherein the perfume composition is present in an amount between 1% and 60%, preferably between 5% and 50%, more preferably between 10% and 40%. 9. Perfume carrier, according to any of the claims 1 to 8, wherein the detergent composition is in the form of bars or powder, in particular in the form of bars for washed. 10. Perfume carrier, according to any of the claims 1 to 9, carried out by a process that comprises spraying a mixture of viscosifying agent of perfume and perfume on the solid carrier, preferably in a granulator, or the mixture of a mixed compound of the agent Perfume and perfume viscosifier with solid carrier. 11. Detergent composition containing between Approximately 4% and 80% of a detergent and between 0.5% and 20% approximately of a perfume carrier according to any of the claims 1 to 10. 12. Detergent composition, according to claim 11 having a perfume concentration between 0.1% and about 4%, in particular between 0.1% and 2% approximately. 13. Bar Detergent Composition for washing with a composition according to claim 11 or 12 carried out through a process that includes the steps of: a) mixing of the usual components of a detergent composition and a perfume carrier according to any of claims 1 to 10, and b) extrusion of said mixtures. 14. Use of a perfume carrier, according to any one of claims 1 to 10, to perfume detergents, in particular in the form of bars or powder, especially to achieve a concentration of perfume between the 0.1% and 4% approximately, in particular between 0.1% and 2% approximately, in the final product. 15. Method for perfuming a detergent or a detergent composition comprising the step of adding a carrier, as defined in any one of claims 1 to 10, to a detergent or detergent composition.