Suspension of mother of pearl agent for liquid treatment composition

FIELD: chemistry.

SUBSTANCE: present invention relates to a physically stable suspension of an inorganic mother of pearl agent suitable for use in a liquid treatment composition containing: an inorganic mother of pearl agent; an organic solvent selected from a group consisting of glycerine, sorbite and mixtures thereof; and a rheology modifier containing non-polymeric crystalline hydroxy-functional material. The present invention also relates to a method of preparing the suspension.

EFFECT: improved physical stability and processing life of the suspension of the inorganic mother of pearl agent.

9 cl, 5 tbl, 1 ex

 

The technical FIELD

The present invention relates to a suspension suitable for use as a component of liquid compositions for processing.

Prior art

In the manufacture of liquid compositions for processing, the goal is to improve their technical and aesthetic characteristics. One way to improve the aesthetic characteristics of the liquid composition for treatment is giving her a pearl type.

Mother-of-pearl effect can be achieved by incorporating pearlescent agent in the liquid composition for treatment. Pearlescent agents include inorganic materials such as mica, bismuth oxychloride and titanium dioxide, and organic compounds such as metal salts of higher fatty acids, complex glycol esters of fatty acids and alkanolamide fatty acids. The present invention relates only to the use of inorganic pearlescent agents. Pearlescent agent may be purchased in the form of a powder, a suspension agent in a suitable suspendium agent or, in cases where the agent is a crystalline material, it can be obtained in situ.

Composition of detergent and pearlescent dispersions containing pearlescent agents of type complex glycol fatty acid ester, are disclosed in the following and is the source: US 4717501 (in the name of Kao); US 5017305 (in the name of Henkel); US 6210659 (in the name of Henkel); US 6835700 (name Cognis). Liquid compositions for treatment containing pearlescent agents are disclosed in US 6956017 (in the name of the Procter & Gamble). Liquid detergents for washing delicate garments, containing pearlescent agent, are disclosed in EP 520551 B1 (in the name of Unilever).

The present invention relates to a suspension containing inorganic pearlescent agent. The suspension described in WO 2007/111899 A2 (in the name of the Procter & Gamble), uses water as a carrier for pearlescent agent. However, applicants have found that the use of water as a carrier for pearlescent agent only provides up to six weeks of physical stability, after which the pearlescent agent begins to precipitate.

Suspension of inorganic pearlescent agent WO 2007/11189 is prepared using a batch process. A measured quantity of a suspension of inorganic pearlescent agent is then introduced into a continuous process used to obtain liquid compositions for processing. However, as mentioned above, inorganic pearlescent agents tend to settle out of suspension. This deposition creates problems when using continuous method for the preparation of liquid compositions for treatment, because there will be areas in which there may exist resorna pearl or may not be the pearl. One of the potential solutions to such problems may be an increase in the viscosity of suspensions. However, the final products should be of relatively low viscosity, especially at high shear loads, so that they can be transferred or used for processing. Therefore, the components of the liquid composition for processing the suspension should not have too high a viscosity. On the contrary, if the slurry has a low viscosity at low shear stress, particulate materials have a tendency to stand out from the suspension and the storage surface or deposited. This leads to the formation of undesirable non-homogeneous suspension in which the suspension is mother-of-pearl, and some transparent and homogeneous. It is obvious that such suspension will have undesirable effects on the aesthetic characteristics of the finished composition, which may be overly pearl or not pearl. In this case the applicant has found that a simple change in the viscosity of the suspension does not allow sufficiently to eliminate the problems described in this invention.

In addition, inorganic pearlescent agents are insoluble and without appropriate solution behave like wet sand, causing problems in the processing of suspensions. The behavior is similar to the wet sand, Usain is no mixing of the suspension and requires much effort from the equipment, used during blending.

The present invention provides for the suspension and the procedure for the preparation of suspensions, suitable for further processing in the liquid composition for processing. The present invention specifically relates to improved physical stability and technological life time (process lifetime) suspension of inorganic pearlescent agent, thereby improving the manufacturing process and quality improvement liquid composition for processing. The present invention also relates to the use of a combination of solvent and modifier rheology in suspensions of inorganic pearlescent agents to improve the physical stability and technological life time suspension. Applicants have discovered that water is replaced by glycerol or morbity solvent increases the physical stability of the suspension, and the suspension remains physically stable for at least 16 weeks. The present invention also relates to an optimized method of manufacturing a suspension of inorganic pearlescent agent, where the introduction of inorganic pearlescent agent is strictly monitored.

The INVENTION

In accordance with the present invention provides for the suspension of the inorganic pearlescent agent suitable for use in the LM is some compositions for the treatment, contains:

a) inorganic pearlescent agent,

b) an organic solvent selected from the group consisting of glycerol, sorbitol and mixtures thereof,

c) a rheology modifier.

The present invention also relates to a method for preparation of suspensions of inorganic pearlescent agent for use in the liquid compositions for processing, which includes stages:

a) combining an organic solvent selected from the group consisting of glycerol and sorbitol and mixtures thereof, and from 10% to 66% wt. 100% active substance is an inorganic pearlescent agent;

b) adding a modifier rheology and mixing; and

c) adding the rest of the inorganic pearlescent agent.

A DETAILED DESCRIPTION of the INVENTION

In the present invention, the term suspension is used to denote a liquid composition, which is typically liquid at ambient temperature and contains a water-insoluble solid dispersion materials or other solid substances.

Suspension of inorganic pearlescent agent of the present invention is suitable for use as a component of liquid compositions for the treatment, suitable for use in the wash or in the home. The term composition for washing understood as including all the liquid composition used in PR is conducting processing by washing, including cleaning and sleek or conditioning compositions. The term composition for hard surface processing is understood as including all liquid compositions used for treatment of hard surfaces, such as surfaces in the kitchen or in the bathroom, and dining and cooking utensils when washing dishes manually or by automatic devices.

Suspension pearlescent agent in accordance with the present invention for this application contains from 30% to 60% water. However, preferably, it contains no added free water. In those cases, when the slurry contains water, it is preferably present as a component of another ingredient suspension, such as a premix of rheology modifier.

Suspension of inorganic pearlescent agent of the present invention preferably has a viscosity of from 21000 to 65000 centipoise at 0.5 s-1and from 1000 to 3000 centipoise at 20-1. The viscosity can be determined by conventional methods. Viscosity in accordance with the present invention, however, is measured with a rheometer AR 550 company TA Instruments using a spindle of plate steel with a diameter of 40 mm and a gap of 500 μm. The viscosity at high shear rate at 20-1and the viscosity at a low shear rate at 0.5 s-1can be identified by logarithmica is some curve scan shear rate from 0.1 -1up to 25-13 minutes at 21°C.

The suspension according to the present invention preferably has a pH from 7 to 11, more preferably, from 7 to 9, when measured directly in suspension.

The temperature of the slurry during the manufacturing process and during storage, preferably, is below 35°C. In those cases where the rheology modifier is hydrogenated castor oil (HCO), temperature, and more preferably is in the range from 10°C to 30°C. the NSO has a low melting point and will lose activity modifier rheology during melting, causing instability of the suspension.

Pearlescent agent

Pearlescent agents in accordance with the present invention are inorganic crystalline or glassy, solid, transparent or semi-transparent connection, able to reflect and refract the light, creating a pearlescent effect. Typically, pearlescent agents are crystalline particles, insoluble in the composition in which they are included. Preferably, pearlescent agents have the form of thin plates or spheres. Areas in accordance with the present invention should be understood as having in common a spherical shape. Particle size is measured by the greatest diameter of the sphere. The plate cha the TIC two particle size (length and width) of at least 5 times greater than the third dimension (height or thickness). Crystals of other shapes, such as cubic or needle or other crystalline forms, do not show pearlescent effect. Many pearlescent agents such as mica, are natural minerals that have monoclinic crystals. The form seems to affect the stability of the agents. Spherical, even more preferably plate-like agents can be stabilized most successfully.

The mechanism of occurrence of mother-of-pearl effect described R.L.Crombie in International Journal of Cosmetic Science, Vol.19, page 205-214. Light reflected from the pearl plates or spheres arranged essentially parallel to each other at different levels in the composition, creates a sense of depth and brilliance. Some light is reflected pearlescent agent, and the rest of the light passes through the agent. When this light passes through a pearlescent agent, may pass through or be deflected. Reflected refracted light creates different colors, brightness and Shine. The smaller the particle size of the pearlescent agent and their size distribution, the easier they suspendida. However, with decreasing particle size of the pearlescent agent the effectiveness of the agent also decreases. Therefore, preferably, in the present invention pearlescent agent had a particle size of preferably from 5 to 32 micrometers, more preferably from 5 to 2 micrometers.

The suspension of the present invention, preferably contains from 1% to 35%, by weight of the suspension, 100% active substance is an inorganic pearlescent agent. More preferably, the slurry contains from 10% to 30%, more preferably from 10% to 20%, by weight of the suspension, 100% active substance is an inorganic pearlescent agent.

Pearlescent agents of the present invention are inorganic. Inorganic pearlescent agents provide both dynamic and static pearlescent effect. Under the dynamic mother-of-pearl effect means that the composition exhibits a pearlescent effect, when it is in motion. Under static pearlescent effect means that the composition exhibits a pearlescent effect when the composition is fixed.

Inorganic pearlescent agents

Inorganic pearlescent agents include materials selected from the group consisting of mica, mica coated with metal oxide, mica coated with silicon dioxide, mica coated with bismuth oxychloride, bismuth oxychloride, myristoleate, glass, glass coated with metal oxide, guanine, sequin (polyester or metal) and their mixtures.

Suitable mica include Muscovite or hydroxyphthalic potassium-aluminum. Plates of mica, preferably, p is opening a thin layer of metal oxide. Preferred metal oxides are selected from the group consisting of rutile, titanium dioxide, iron oxide(3), tin oxide, aluminum oxide and mixtures thereof.

Pearl effect such pearlescent agents arises from the interference between light rays reflected at angles of specular reflection from the upper and lower surfaces of the layer of metal oxide. The intensity of the coloring agents is reduced with the removal of the angle from the angle of mirror reflection and gives them a pearlescent appearance.

More preferably, the inorganic pearlescent agents are selected from the group consisting of mica and bismuth oxychloride, and mixtures thereof. More preferably, the inorganic pearlescent agents are mica. More preferably, pearlescent agent is a mica coated with metal oxide, more preferably, mica coated with titanium oxide, mica coated with bismuth oxychloride or mica coated with silicon dioxide, and mixtures thereof.

Commercially available suitable inorganic pearlescent agents are delivered by the company Merck under the trade names Iriodin, Biron, Xirona, Timiron Colorona, Dichrona, Candurin and Ronastar. Other commercially available inorganic pearlescent agents supplied by firms BASF (Engelhard, Mearl) under the trademarks Biju, Bi-Lite, Chroma-Lite, Pearl-Glo, Mearlite, and Ekart under the trademarks Prestige Soft Silver and Prestige Silk Silver Star.

Inorganic pearlescent agents, preferably introduced in the form of powder and are used for preparation of the suspension without the need for any additional stages of processing. The method of preparation of the suspension will be described in more detail later.

The system of organic solvent

The system solvent in combination with the rheology modifier is essential to ensure the physical stability of the suspension. Suitable solvents in accordance with this invention are organic solvents selected from the group consisting of glycerol and sorbitol and mixtures thereof. The solvent is typically present in amounts in the range from 10% to 50%, preferably from 20% to 40%, by weight of the suspension.

Glycerin is a colorless and viscous liquid, odorless. It has a sweet taste and low toxicity. Glycerol has three hydroxyl groups, which provides its solubility in water and its hygroscopic nature.

Sorbitol is a sugar alcohols having six hydroxyl groups, which provides its solubility in water and its hygroscopic nature.

Without wanting to be limited by theory, we can note that, as is, there is synergy between the solvent and the modifier rheology. In addition, it is believed that the ICI is EMA, containing these two elements provides greater elasticity in the system. This elasticity is manifested in the fact that the system or the grid is able to recover faster after application of shear load.

The rheology modifier

The suspension according to the present invention contains a rheology modifier. The overall goal of adding such a rheology modifier to the slurry of the present invention is to obtain a suspension, which would be suitable functional and aesthetically attractive taking into account such characteristics of the suspension, as the density, fluidity, physical stability, optical properties and/or performance characteristics of the suspension particles. Thus, the rheology modifier serves to provide suitable rheological characteristics of the slurry and performs this function without making the product any undesirable characteristics, such as unacceptable optical properties or undesirable separation of the phases. Under the rheological characteristics refer to the characteristics of the suspension flow under the application of load and deformation.

Component modifier rheology of suspensions pearlescent agent of the present invention may be characterized as "external" or "internal" modifier rheology. "External" rheology modifier, for the purposes of the present invention is a material the primary function of which is the change in the rheological characteristics of the liquid matrix. Usually, therefore, the external rheology modifier by itself will not provide any significant beneficial effect cleaning cloth or fabric care or any significant beneficial effect solubilization of the ingredient. External rheology modifier, thus, differs from the "internal" modifier rheology, which can also modify the rheology of the matrix, but which is introduced into the liquid product with some additional primary goal. Thus, for example, the preferred internal rheology modifier will anionic surfactants that can be used to modify the rheological properties of a suspension, but which are added to the suspension in the first place as a cleaning ingredient of the finished product.

Modifier rheology of suspensions of the present invention is used to create a liquid matrix suspension pearlescent agent having specific rheological characteristics. The main characteristic is that the matrix must be able to "liquefied shear". Razzhizhayuschiesya shear fluid has a viscosity that decreases with application to fluid shear stress. Therefore clicks the zoom, in the rest state, i.e. when storing or transporting the suspension liquid matrix suspension should have a relatively high viscosity. However, in the case of an application for suspension pearlescent agent, shear loads, such as during pouring, pumping or mixing of the suspension, the viscosity of the matrix should be reduced to such an extent that it was possible to easily carry out the dosing and mixing of the suspension.

One type of agent, rheology modifier, especially suitable for use in the suspension of the present invention, contains polimernye (except the usual alkoxysilane) crystal hydroxyquinoline materials that can form thread-like structuring system within a liquid matrix during crystallization in the matrix in situ. Such materials can be in General described as crystalline hydroxycobalamin fatty acids, esters of fatty acids or fatty waxes.

Specific examples of preferred crystalline hydroxyl-containing rheology modifiers include castor oil and its derivatives. Especially preferred are derivatives such as hydrogenated castor oil (HCO) and hydrogenated castor wax. Commercially available crystalline hydroxysteroid the e rheology modifiers based on castor oil include THIXCIN ®manufactured by Rheox, Inc. (currently Elementis).

Alternative commercially available materials are materials suitable for use as a crystalline hydroxyl-containing rheology modifiers. An example of a rheology modifier of this type is 1,4-di-O-benzyl-D-trait in R,R - and S,S-forms and any mixtures of optically active or not.

It is believed that all these crystalline hydroxycobalamin rheology modifiers described above, operate through the formation of thread-like structuring systems of crystallization in situ in the liquid matrix of the suspension according to the present invention or in the premix, which is used for formation of such a liquid matrix. Such crystallization is caused by heating the aqueous mixture of these materials to a temperature above the melting point of the rheology modifier, followed by cooling the mixture to room temperature with continuous stirring of the liquid.

Other types of rheology modifiers, in addition to polimernyh crystalline hydroxyl-containing rheology modifiers, described above, can be used in the suspensions of the present invention. Can also be used polymeric materials that provide the ability to liquefaction under the application of shear loads to the aqueous liquid matrix.

P is egodnya polymeric rheology modifiers include materials such as polyacrylates, polysaccharides or derivatives of polysaccharides. Derivatives of polysaccharides, typically used as rheology modifiers include materials polymer resins. Such resins include pectin, alginate, arabinogalactan (gum Arabic), carrageenan, Gellan gum, xanthan gum and guar gum.

In the case of use in the present invention the polymeric rheology modifiers preferred material of this type is Gellan gum. Gellan gum is heteropolysaccharide obtained by fermentation Pseudomonaselodea ATCC 31461. Gellan gum is commercially supplied by the firm CF Keico U.S., Inc. under the brand name KELCOGEL. The methods for the production of Gellan gum are described in U.S. patent No. 4326052; 4326053; 4377636 and 4385123.

In another preferred embodiment, the rheology modifier is a polyacrylate, unsaturated mono - or dicarboxylic acid and 1-30C alkyl ether complex (meth)acrylic acid. Such copolymers are delivered by the company a Noveon Inc. under the trademark Carbopol Aqua 30.

Preferably, the rheology modifier of the present invention is an external modifier rheology. The rheology modifier selected from the group consisting of polimernyh crystalline hydroxyquinoline materials, polymeric rheology modifiers, and mixtures thereof. M is defecator rheology suspension gives the ability to liquefaction under the action of shear loads. Crystal hydroxyquinoline materials are rheology modifiers, forming a thread-like structuring system inside the matrix composition by in situ crystallization in the matrix. Polymer rheology modifiers, preferably, are selected from polyacrylates, polymeric resins, other nasality polysaccharides, and combinations of these polymeric materials.

Suspension pearlescent agent of the present invention, preferably contains from 40% to 80%, by weight suspension of inorganic pearlescent agent, rheology modifier. Preferably, from 40% to 60%, more preferably from 40% to 50%by weight suspension of inorganic pearlescent agent of the present invention.

Detergent surfactants

The suspension may also contain a surfactant. The specified surfactant may be or may not be a component of the rheology modifier. Surfactant used in the present invention as a detergent surfactant to the suspension of the dirt.

Used detergent surfactants may be anionic, nonionic, zwitterions, ampholytic or cationic type or may contain a compatible mixture of these types. More preferably, the surface-active in the society are selected from the group consisting of anionic, nonionic, cationic surfactants and mixtures thereof. Preferably, the composition is essentially not contain betaine surfactants. Detergent surfactants suitable for use in the present invention, is described in U.S. patent 3664961, Morris, issued may 23, 1972, the U.S. patent 3919678, Laughlin et al., issued December 30, 1975, the U.S. patent 4222905, Cockrell, issued September 16, 1980, and U.S. patent 4239659, Murphy, issued December 16, 1980, Preferred are anionic and nonionic surfactants.

Usable anionic surfactants can themselves be divided into several different types. For example, water-soluble salts of higher fatty acids, i.e. the "Soaps", are suitable anionic surfactants in the compositions of the present invention. These include Soaps of alkali metals such as sodium, potassium, ammonium and alkylammonium salts of higher fatty acids containing from about 8 to about 24 carbon atoms, preferably from about 12 to about 18 carbon atoms. Soap can be obtained by direct saponification of fats and oils or by the neutralization of free fatty acids. Particularly suitable are the sodium and potassium salts of the mixtures of fatty acids derived from coconut the oil and technical fat (tallow), i.e. sodium or potassium tallow and coconut soap.

Additional do not form Soaps, anionic surfactants suitable for use in the present invention include water-soluble salts, preferably salts of alkali metals and ammonium, the reaction products of organic compounds with sulfuric acid having in its molecular structure an alkyl group containing from about 10 to about 20 carbon atoms, and the group of ester sulfonic acid or sulfuric acid (the term "alkyl" includes alkyl portion of the acyl groups). Examples of this group of synthetic surfactants are (a) alkyl sulphates of sodium, potassium and ammonium, especially those produced by the sulfation of higher alcohols (C8-C18carbon atoms), such as obtained by recovery of the glycerides of tallow or coconut oil; b) alkylpolyoxyethylene sodium, potassium and ammonium, especially those in which the alkyl group contains from 10 to 22, preferably 12 to 18 carbon atoms, and polyethoxylate chain contains from 1 to 15, preferably 1-6 ethoxylated links; and (C) alkylbenzenesulfonate sodium and potassium, in which the alkyl group contains from about 9 to about 15 carbon atoms in the linear chain or branched chain configuration, for example, owned materialam type, described in U.S. patent 2220099 and 2477383. Especially valuable are linear unbranched alkylbenzenesulfonate, in which the average number of carbon atoms in the alkyl group is from about 11 to 13, abbreviated as denoted C11-C13The LAS.

Preferred nonionic surfactants are materials of the formula R1(OC2H4)n-OH, where R1represents a C10-C16alkyl group or a C8-C12alkylphenyl group and n has a value from 3 to about 80. Particularly preferred are the condensation products of C12-C15alcohols with from about 5 to about 20 moles of ethylene oxide per mole of alcohol, e.g., C12-C13alcohol, condensed with approximately 6.5 by moles of ethylene oxide per mole of alcohol.

Suspension of inorganic pearlescent agent of the present invention can contain from about 6% to 13%, by weight of the suspension, surface-active substances. Surfactant is particularly preferred ingredient in suspension, when the rheology modifier is a hydrogenated castor oil,

LIQUID COMPOSITION FOR PROCESSING

Suspension of inorganic pearlescent agent is preferably used as a component of the liquid composition for printing handling is key. Therefore, suspension, preferably to conform to a liquid composition for processing and to be suitable for processing with other components. Suitable components of the liquid composition for processing are listed and described in detail below.

Suspension of inorganic pearlescent material

The suspension described in detail above.

The rheology modifier

Liquid composition for processing, preferably, contains a rheology modifier, in addition to used in suspension pearlescent agent. Function and the choice of rheology modifier in liquid compositions for treatment similar to that already described for suspension.

Detergent surfactants

Liquid composition for processing, preferably, contains a detergent surfactant, in addition to used in suspension pearlescent agent. Function and the choice of detergent surfactants for liquid compositions for treatment similar to that already described for suspension.

Optional ingredients of the liquid composition for processing

The liquid composition for treatment may contain other ingredients selected from the following list of optional ingredients. If not specified in the description below, the "effective amount" of a particular auxil telego material for washing, preferably, comprises from 0.01%, more preferably from 0.1%, even more preferably from 1%to 20%, more preferably up to 15%, even more preferably up to 10%, even more preferably up to 7%, most preferably up to 5%, by weight of the detergent composition.

Agents to care for fabrics, to create useful effects

In accordance with a preferred embodiment of compositions according to the present invention, they contain an agent to care for fabrics, creating a useful effect. Used here has the meaning of "agent to care for fabrics, creating a useful effect"refers to any material that can provide beneficial effects of fabric care, such as fabric softener, protection dyeing, reduction of rolling knots/RuslanaTube, protection from drying, making nesminaemosti, etc. for items of clothing and fabrics, especially cotton and have a high cotton content items of clothing and fabrics, in the case of applying a sufficient amount of material on the garment/fabric. Non-limiting examples of agents for the care of fabrics, to create useful effects include cationic surfactants, silicones, polyolefin waxes, latex, oil derivatives sugars, cationic polysaccharides, polyurethanes, fatty acids and mixtures thereof. Suitable number of agents is offering to care for fabrics, create useful effects, in case of their presence in the composition to be processed is in certain versions up to about 30% by weight of the composition, more typically from 1% to 20%, preferably from 2% to 10%.

Additive enhancing detergency

Liquid compositions for treatment may optionally contain additives that enhance detergency. Suitable additives that enhance the cleaning action, described below.

Suitable polycarboxylate additives that enhance detergency, include cyclic compounds, particularly alicyclic compounds, such as described in U.S. patent 3923679; 3835163; 4158635; 4120874 and 4102903.

Other suitable additives that enhance detergency, include simple ether hydroxypolycarboxylic, copolymers of maleic anhydride with ethylene or simple vinylmation ether, 1,3,5-trihydroxybenzene-2,4,6-trisulfonic acid and carboxymethylcysteine acid, various salts of alkali metals, ammonium and substituted ammonium polixeni acids, such as ethylenediaminetetraacetic acid, nitrilotriacetic acid, and polycarboxylate, such as malletova acid, succinic acid, accidentally acid, primulina acid benzene-1,3,5-tricarboxylic acid, carboxymethylcysteine acid and its soluble salts.

Citrate add the and, enhance detergency, such as citric acid and its soluble salts (particularly sodium salt), are polycarboxylate additives that enhance detergency, especially important for liquid detergent compositions intended for washing heavily soiled items, due to their availability from renewable resources and their ability to degradation by biological. Oxidisability are also particularly suitable for use in such compositions and combinations.

Also suitable for use in liquid compositions for treatment are 3,3-dicarboxy-4-oxa-1,6-hexandiol and related compounds disclosed in U.S. patent 4566984, Bush, issued on January 28, 1986 Suitable additives that enhance the cleaning action, on the basis of succinic acid include5-C20alkyl - and alkenylamine acids and their salts. Especially preferred compound of this type is dodecanesian acid. Specific examples succinate additives that enhance detergency, include: laurylamine, ministranci.net, polymethylacrylate, 2-dodecenylsuccinic (preferred), 2-pentadecanolide etc. Laurylamine are the preferred reinforcing detergency additives belonging to the group and described in EP-A-0200263 published 5 noyabrya,

Specific examples of nitrogen-containing, not containing phosphorus of aminocarboxylate include ethylenediaminetetra acid and its salts (ethylenediaminedisuccinate, EDDS), ethylenediaminetetraacetic acid and its salts (ethylenediaminetetraacetate, EDTA) and diethylenetriaminepentaacetic acid and its salts (diethylenetriaminepentaacetate, DTPA). Other suitable polycarboxylate disclosed in U.S. patent 4144226, Crutchfield et al., issued March 13, 1979, and in U.S. patent 3308067, Diehl, issued March 7, 1967 Cm. also Diehl, U.S. patent 3723322. Such materials include water-soluble salts of Homo - and copolymers of aliphatic carboxylic acids, such as maleic acid, taconova acid, musicanova acid, fumaric acid, konitova acid, Tarakanova acid and metromanila acid.

System bleach

The bleach system, suitable for use in liquid compositions for processing, contains one or more bleaching agents. Non-limiting examples of suitable bleaching agents are selected from the group consisting of catalytic metal complexes, activated sources of peroxides, bleaching activators, tools that enhance whitening, fotohuvilistele, bleaching enzymes, the initiators of free radicals and hypohalite (hyohalite) bleach.

Flavor

The flavors, the pre is respectfully, part of the liquid compositions for processing. The flavoring ingredients can be pre-blended to create a chord of flavor before adding the detergent composition of the present invention. Used here meaning the term "flavouring" covers the individual ingredients of the flavor and chords flavors. More preferably, the liquid composition for treatment contain microcapsules flavoring. The flavoring microcapsules include aromatic raw materials, encapsulated in a capsule made from materials selected from the group consisting of urea and formaldehyde, melamine and formaldehyde, phenol and formaldehyde, gelatin, polyurethane, polyamides, ethers of cellulose, cellulose ethers, polymethacrylate and mixtures thereof, most preferably, flavor encapsulated in a shell of melamine and formaldehyde. Methods of encapsulation are shown in "Microincapsulation: methods and industrial applications", edited by Benita and Simon (Marcel Dekker Inc., 1996),

Typical examples of the ingredients, flavors and chords flavors are disclosed in U.S. patent 5445747; U.S. patent 5500138; U.S. patent 5531910; U.S. patent 6491840; and U.S. patent 6903061.

The system solvent liquid composition for processing

The system solvent in the liquid compositions for treatment is otki, unlike suspensions, can be a solvent system containing one water only or a mixture of organic solvents with water. Preferred organic solvents include 1,2-propandiol, ethanol, glycerin, dipropyleneglycol, methylpropanol and mixtures thereof. Can also be used other lower alcohols, With1-C4alkanolamine, such as monoethanolamine and triethanolamine. The solvent system may be missing, for example, in anhydrous solid versions of the invention, but more typically are present in amounts in the range from 0.1% to 98%, preferably from at least 10% to 95%, more often from 25% to 75%.

Substantive to the fabric and colouring dye

The dye is generally defined as acid, basic, reactive, disperse, direct, VAT, sulphur or solvent dyes, etc. For liquid compositions for treatment are preferred direct dyes, acid dyes and reactive dyes, and most preferred are direct dyes. Direct dyes are a group of water-soluble dyes, which are directly absorbed by the fibers from an aqueous solution containing an electrolyte, presumably due to selective adsorption. In the system color index Color Index) direct the e (directive) dyes represent different planar, highly conjugated molecular structure containing one or more anionic sulphonate groups. Acid dyes are a group of water-soluble anionic dyes that are applied from the acid solution. Reactive dyes are a group of dyes containing reactive groups capable of forming covalent bonds with specific parts of molecules of natural or synthetic fibers. From the point of view of chemical structure suitable noun in relation to fabric dyes for use according to the present invention can be azo compounds, stilbene, oxazine and phthalocyanines.

Suitable noun in relation to fabric dyes for use in the present invention include the compounds listed in the Color Index as direct violet dyes, direct blue dyes, acid violet dyes, acid blue dyes.

Tint dye is included in detergent compositions for washing in a quantity sufficient to allow the effect of coloring fabrics that are washed in a solution containing detergent.

The encapsulated composition

The composition for treatment according to the present invention and, thus, its suspension can be encapsulated in vodorastvorimihkh. Water-soluble film may be made of polyvinyl alcohol or other suitable options, including carboxymethyl cellulose, cellulose derivatives, starch, modified starch, sugars, PEG, waxes or combinations thereof.

In another embodiment, the water-soluble film may contain other excipients, such as a copolymer of vinyl alcohol and a carboxylic acid. U.S. patent 7022656 B2 (Monosol) describes such compositions of the films and their benefits.

Water-soluble film can also contain additional comonomers. Suitable further comonomers include sulfonates and ethoxylates. An example of a preferred sulfonic acid is 2-acrylamide-2-methyl-1-propanesulfonic acid (AMPS). Suitable water-soluble film for use in the context of the present invention is commercially available under the trademark M™ from the company Mono-Sol (Indiana, US). Water-soluble film of the present invention may also contain ingredients other than the polymer or polymeric material. For example, it may be useful to add plasticizers, such as glycerol, ethylene glycol, diethylene glycol, propane diol, 2-methyl-1,3-propane diol, sorbitol and their mixtures, additional water, repusively additives, fillers, defoamers, emulsifying/disperser the participating agents and/or agents, caking. It may be useful to bag or water-soluble film themselves contain detergent, which should be additionally delivered to the washing solution, for example, organic polymeric soil release agents, dispersants, inhibitors of dye transfer. Optionally, the surface of the film bag can be powdered finely dispersed powder to reduce friction. Examples of suitable fine-grained powders are sodium aluminosilicate, silicon dioxide, talc and amylose. The encapsulated packets can be manufactured using any conventional known methods. More preferably, the bags are produced using methods of thermoforming with horizontal filling.

Other excipients

Examples of other suitable cleaning auxiliary materials include, without limitation, alkoxysilane benzoic acid or their salts, such as trimethoxybenzoic acid or its salt (TMWA); stabilization system of enzymes, chelating agents, including aminocarboxylate, aminophosphonate, not containing nitrogen phosphonates and not containing phosphorus and carboxylates chelating agents, inorganic additives that enhance detergency, including inorganic additives that enhance detergent action is s, such as zeolites, and water-soluble organic additives that enhance detergency, such as polyacrylates, acrylate/maleate copolymers and the like, agents, scavengers, including fixing agents for anionic dyes, complexing agents for anionic surfactants and mixtures thereof; foaming system containing hydrogen peroxide and catalase; optical brighteners or phosphors; soil release polymers; dispersants; anogenital; dyes; colorants; serving as a filler salts such as sodium sulfate; girotropnye substances, such as toluensulfonate, kumulantami and naphthalenesulfonate; photoactivity; hydrolyzable surfactants; preservatives; antioxidants; antishrink agents; agents for giving nesminaemosti; germicide; fungicides; colored sequins; colored beads, spheres or extrudates; sunscreen; fluorinated compounds; clay; luminescent agents or chemiluminescent agents; corrosion protection agents and/or agents to protect equipment; sources of alkalinity or other agents to adjust pH; soljubilizatory; processing AIDS; pigments; scavengers of free radicals and mixtures thereof. Suitable materials include substances described in U.S. patents№№5705464, 5710115, 5698504, 5695679, 5686014 and 5646101. The mixture is vspomogatelny substances can be prepared mixture of the above components in any proportion.

Preparation of suspension

The suspension of the present invention is obtained by mixing the ingredients with each other. However, the order and the amount of added inorganic pearlescent agent are important factors, and inorganic pearlescent agent should be added in two parts. This method involves the following stages:

a) combining an organic solvent selected from the group consisting of glycerol, sorbitol and mixtures thereof, and from 10% to 66%, by weight, 100% active substance is an inorganic pearlescent agent;

b) adding a modifier rheology and mixing; and

c) adding the rest of the inorganic pearlescent agent.

Inorganic pearlescent agents are insoluble and without appropriate solution behave like wet sand, causing problems in the processing of suspensions. Behavior similar to wet sand, makes a stirring suspension and requires significant effort on the part of the equipment used in the process of mixing. The addition of inorganic pearlescent agent two portions allows to obtain recyclable and homogeneous suspension. When the first addition of inorganic pearlescent agent add pic is Adina from 10% to 66% by weight of the inorganic pearlescent agent and stirred.

Hydrogenated castor oil is the preferred rheology modifier. In cases when, as a rheology modifier is used hydrogenated castor oil, preferably prepared using a batch process premix hydrogenated castor oil and surfactants. The water is heated to a temperature of from 80°to 98°C. Surfactant is then added to the solution and the pH adjusted to 7-8 by using a suitable agent, pH adjustment, for example, NaOH and buffer. The rheology modifier based on hydrogenated castor oil is dispersed in the solution at a temperature above the melting point of the rheology modifier and the mixture emuleret. The premix is then crystallized by cooling the emulsion at the rate of 1±0.2°C/min to the end point of 25°C.

Add gradually the rest of the inorganic pearlescent agent and stirred.

The mixing rate of the suspension pearlescent agent depends on the composition of the suspension: a greater percentage of the pearlescent agent requires a higher mixing speeds compared to a smaller percentage pearlescent agent. To ensure mixing and incorporating pearlescent agent in the composition must be sufficient and constant speed of paramashiva the Oia. However, the magnitude of the shear loads in the process must be maintained at a minimum level to prevent the destruction of the grid created by the rheology modifier.

EXAMPLES

The following non-limiting examples illustrate the present invention. The percentages are given by weight, unless otherwise indicated.

Viscosity in accordance with the present invention is measured by using a rheometer AR 550 company TA Instruments using a spindle of plate steel with a diameter of 40 mm and a gap of 500 μm. The viscosity at high shear rate (HSV), measured at 20-1and the viscosity at low shear rate (LSV) at 0.5-1can be defined on a logarithmic curve scan shear rate from 0.1-1up to 25-13 minutes at 21°C.

Example 1

In the Example 1, examples A-D are examples of the suspension of the present invention.

AndInD
Mica10,0010,0025,0030,00
Water30,4048,64 30,4030,40
Glycerin50,0026,0035,0030,00
The rheology modifier1,602,561,601,60
Surfactant6,4010,246,406,40
NaOH (50%)1,602,561,601,60
Only100,00100,00100,00100,00
LSV, SP21013299343268131386
HSV, SP110112971756 1821

Suspension And

A detailed description of an example method of manufacturing a suspension As shown in the table below. The table represents the process in time. The addition of inorganic pearlescent agent on two main stages indicated in the table as follows: 1st addition mica (10-66% by weight of the inorganic pearlescent agent) stages and the 2nd addition of mica (the remaining weight of the inorganic pearlescent agent) as stages.

The lot size is 1100 grams and a diameter of chemical glass equal to 140 mm Type impeller stirrer with inclined blades, the impeller diameter is 100 mm Clearance (mm) represents the distance from the bottom of the chemical glass to the impeller and can be measured using any measuring device, such as a measuring device (meter) or line.

td align="left">
StageTime (min)Stirring speed (rpm)Clearance (mm)The amount added of the compound (g)The rate of addition (kg/min/m2)
the addition of glycerin0
1st addition mica12001060,39
increase speed1,540010
1st addition mica24001012,240,80
1st addition mica34001012,560,82
1st addition mica3,5400106,040,78
mixing3,540010
mixing4 10010
the addition of a rheology modifier5,520010
increase speed6,525010
the addition of a rheology modifier7,525010
mixing820010
mixing925010
The 2nd addition of mica102501013,60,88
The 2nd addition of mica113001016,41,07
The 2nd addition of mica123001015,51,01
The 2nd addition of mica12,530010151,95
The 2nd addition of mica13,53001013,250,86
mixing1425010
mixing1725010

Suspension

A detailed description of an example method of manufacturing the suspension in the table below. The table represents the process in time. The addition of neo the organic pearlescent agent on two main stages indicated in the table as follows: 1st addition mica (10-66% by weight of the inorganic pearlescent agent) stages and the 2nd addition of mica (the remaining weight inorganic pearlescent agent) as stages.

The lot size is 1100 grams and a diameter of chemical glass equal to 140 mm Type impeller stirrer with inclined blades, the impeller diameter is 100 mm Clearance (mm) represents the distance from the bottom of the chemical glass to the impeller and can be measured using any measuring device, such as a measuring device or line.

StageTime (min)Stirring speed (rpm)Clearance (mm)The amount added of the compound (g)The rate of addition (kg/min/m2)
the addition of glycerin
1st addition mica12001013,10,85
1st addition mica230010 15,30,99
1st addition mica2,5300108,31,08
the addition of a rheology modifier3,530010
the addition of a rheology modifier5,530010
mixing620010
mixing720010
increase speed7,5350
The 2nd addition of mica8 3001014,70,95
The 2nd addition of mica94001014,30,93
The 2nd addition of mica104001017,41,13
The 2nd addition of mica1140010the 13.40,87
The 2nd addition of mica124001013,90,90
mixing1330010
mixing1530010

Suspension

Detailed description of example methods for the and manufacturing suspension in the table below. The table represents the process in time. The addition of inorganic pearlescent agent on two main stages indicated in the table as follows: 1st addition mica (10-66% by weight of the inorganic pearlescent agent) stages and the 2nd addition of mica (the remaining weight of the inorganic pearlescent agent) as stages.

The lot size is 1100 grams and a diameter of chemical glass equal to 140 mm Type impeller stirrer with inclined blades, the impeller diameter - 100 mm

StageTime (min)Stirring speed (rpm)Clearance (mm)The amount added of the compound (g)The rate of addition (kg/min/m2)
the addition of glycerin0
1st addition mica12501016,61,08
1st addition mica 22501014,70,95
1st addition mica32501014,00,91
1st addition mica42501016,31,06
1st addition mica52501011,40,74
1st addition mica62501020,6of 1.34
mixing630010
mixing6,525010
the addition of a rheology modifier7,530010
the addition of a rheology modifier8,530010
mixing930010
mixing9,520010
mixing1020010
The 2nd addition of mica112501016,81,09
The 2nd addition of mica122501017,5 1,14
The 2nd addition of mica133001011,80,77
The 2nd addition of mica143001013,80,90
The 2nd addition of mica153001013,60,88
The 2nd addition of mica163001015,30,99
The 2nd addition of mica173001016,61,08
The 2nd addition of mica183501014,30,93
The 2nd addition of mica19 3501013,60,88
The 2nd addition of mica203501016,41,07
The 2nd addition of mica213501010,80,70
The 2nd addition of mica223501022,41,45
mixing22,540010
mixing23,530010
mixing2520010
mixing26 20010

Suspension D

A detailed description of an example method of manufacturing a suspension of D in the table below. The addition of inorganic pearlescent agent on two main stages indicated in the table as follows: 1st addition mica (10-66% by weight of the inorganic pearlescent agent) stages and the 2nd addition of mica (the remaining weight of the inorganic pearlescent agent) as stages.

The lot size is 30 kg and the diameter of the tank is equal to 390 mm Type impeller stirrer with inclined blades, the impeller diameter - 250 mm Clearance (mm) represents the distance from the bottom of the tank to the impeller and can be measured using any measuring device, such as a measuring device or line.

StageStirring speed (rpm)Clearance (mm)The amount added of the compound (g)The rate of addition (kg/min/m2)
the addition of glycerin10060
1st addition mica1006029800,80
mixing10060
the addition of a rheology modifier10060
mixing150100
The 2nd addition of mica19015056001,20
mixing190150

The dimensions and values disclosed here should not be construed as strictly limited to these precise numerical values. Instead, unless otherwise specified, each such dimension shall be defined as the specified value, and are functionally equivalent in erval, surrounding this value. For example, the size, disclosed as "40 mm"must mean "about 40 mm".

1. Physically stable suspension of inorganic pearlescent agent suitable for use in liquid compositions for treatment containing:
a) inorganic pearlescent agent;
b) an organic solvent selected from the group consisting of glycerol, sorbitol and their mixtures; and
c) a rheology modifier containing polimerny crystalline hydroxyquinoline material.

2. Physically stable suspension according to claim 1, characterized in that the inorganic pearlescent agent is selected from the group consisting of mica or bismuth oxychloride, more preferably, mica coated with metal oxide, more preferably, mica coated with TiO2, mica coated with bismuth oxychloride or mica coated with silicon dioxide and mixtures thereof.

3. Physically stable suspension according to claim 1, characterized in that it further contains an anionic surfactant selected from the group consisting of C11-C18alkylbenzenesulfonates (LAS), C10-C20branched and statistical alkyl sulphates (AS), C10-C18alkylalkoxysilane (AExS), where x has a value in the range 1-30, branched alkyl sulphates with an average chain length razvetvlennye is alkylalkoxysilane with an average chain length C10-C18alkylalkoxysilane containing 1-5 atoxigenic links, modified Las (MLAS), C12-C20complex methylethylacetate (MES), C10-C18alpha reincorporate (AOS), C6-C20sulfosuccinates and mixtures thereof.

4. Physically stable suspension according to claim 1, characterized in that it further contains a nonionic surfactant selected from the group consisting of C9-C18alkylethoxylates, C6-C12alkylphenolethoxylates, C12-C18alcohol and the condensation products of C6-C12of alkyl phenols with ethylene oxide/propylenoxide the copolymers, C14-C22branched alcohols with an average chain length of C14-C22branched alkylalkoxysilane with an average chain length of alkylpolyglycoside, amides of fatty PolicyKit, poly(oxyalkylene) alcohols with terminal ether groups, ester sorbitan and fatty acids (C12-18) and mixtures thereof.

5. Physically stable suspension according to claim 1, characterized in that the weight of the solvent present is from about 10% to about 50% by weight suspension of inorganic pearlescent agent, more preferably, from about 20% to about 40% by weight suspension of inorganic pearlescent agent.

6. The physical and stable suspension according to claim 1, characterized in that the inorganic pearlescent agent is present in amount from about 1% to about 35% by weight suspension of inorganic pearlescent agent, more preferably, from about 10% to about 30%, and more preferably, from about 10% to about 20%, by weight suspension of inorganic pearlescent agent.

7. Physically stable suspension according to claim 1, wherein the rheology modifier is present in an amount of from about 40% to about 80% by weight suspension of inorganic pearlescent agent, more preferably, from about 40% to about 60%, and more preferably, from about 40% to about 50%, by weight suspension of inorganic pearlescent agent.

8. Physically stable suspension according to claim 1, wherein the rheology modifier is present in the form of a premix hydrogenated castor oil and a surfactant, with surfactant, preferably, is present in amount from about 6% to about 13% by weight of the premix of the rheology modifier.

9. A method of manufacturing a suspension according to claim 1, intended for use in detergent compositions, including the stage at which:
i) combine the organic solvent with from about 10% to about 66% by weight of inorganic pearlescent agents is a, this pearlescent agent is a 100% active substance;
ii) was added with stirring, a rheology modifier containing polimerny crystalline hydroxyquinoline material to the organic solvent and pearlescent agent; then
iii) add the remainder of the inorganic pearlescent agent under stirring.



 

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