WO2019121311A1

WO2019121311A1 - Fragrance additive for laundry

Info

Publication number: WO2019121311A1
Application number: PCT/EP2018/084730
Authority: WO
Inventors: Joachim Leipold; Antje Schirmer; Frank BRUNECKER
Original assignee: Buck Group AG
Priority date: 2017-12-21
Filing date: 2018-12-13
Publication date: 2019-06-27
Also published as: DE102017130878A1

Abstract

The invention relates to a composition for treating laundry, said composition being provided in the form of a plurality of pastilles and comprising: 1 wt.% to 20 wt.% of fragrance oils, wherein one portion of the fragrance oils are free fragrance oils and one portion of the fragrance oils are encapsulated fragrance oils; at least 40 wt.% of at least one water-soluble carrier from the group formed of salts and mono-, di-, oligo- or polysaccharides; and 0.1 wt.% to 8.0 wt.% of at least one water-insoluble or substantially water-insoluble inorganic carrier; and less than 8 wt.% surfactants. The invention also relates to a method for fragrancing laundry, a method for producing laundry treatment compositions and the use thereof.

Description

Duftzusatz für WäscheScent additive for laundry

The present invention relates to an agent for additional scenting of laundry, its production and use and a scenting process.

Basically, detergents for laundry contain fragrances that give the laundry after washing a fresh smell. However, to some consumers, the perfuming of the detergents is too low, so they tend to overdose the detergent or fabric softener.

WO 2011/056938 already discloses compositions for the additional scenting of laundry in the form of a multiplicity of lozenges comprising 80% by weight to 91% by weight of polyethylene glycol, free perfumes and encapsulated perfumes.

The polyethylene glycol serves as a water-soluble carrier material for the free or encapsulated fragrance, so that the fragrance additive can be provided in easy-to-dose particle form. The carrier material dissolves completely on washing, without leaving unwanted residues or contaminating or discoloring the laundry. If desired, the fragrance additive particles may also contain dyes.

To prepare such lozenges, the solid components are melted and then the fragrances are added to the melt and then passed through a perforated plate, for example, so that pellets of the desired size are formed. The pastilles are then cooled to retain their shape.

The preparation of the known from the prior art requires expensive carrier materials.

In addition, this process requires a great deal of energy for heating and cooling. Also, the fragrances are damaged by the high temperatures.

From WO 99/21953 perfume moldings are known which can be incorporated into detergents and cleaners. These perfume moldings are granulated or press-agglomerated from a substantially anhydrous premix of 65% to 95% excipients, 5% by weight to 25% by weight perfume and optionally auxiliaries, whereby the granulation / press agglomeration only takes effect through the action of the mixing tools homogeneous plasticized mixture is obtained in which the perfume is finely divided incorporated into the carrier.

Suitable carriers are surfactants, surfactant compounds, sugars, silicates, zeolites, carbonates, sulfates and citrates. The perfume moldings have between 10% by weight and 88% by weight of surfactants and can be dyed. If desired, the perfume moldings can additionally be subsequently perfumed with perfume, so that both the laundry can be scented with the fragrance molded body and the fragrance molding itself smells. In principle, the perfume moldings should be able to be produced from a fragrance-containing, solid and essentially anhydrous premix by means of extrusion, tabletting or roll compaction.

The preparation of these perfume moldings is relatively expensive and the resulting mass is sticky, so that no hard free-flowing pastilles can be produced. In addition, the stained perfume moldings show only a pale color, the desired long-lasting scenting of the laundry is insufficient.

WO 2004/083356 A1 discloses a free-flowing solid fragrance composition which comprises 10% by weight to 20% by weight of perfume, 5% by weight to 10% by weight of particulate carrier materials such as Aerosil and water-soluble alkali metal or alkaline earth metal salts. The salts facilitate the meterability.

DE 10 2016 219 570 A1 (earlier application) teaches a process-friendly composition based on polyalkylene glycols for the production of enamel bodies, which can also be used for textile care.

EP 2 007 863 B1 deals with methods for the largely stable packaging, in particular of enzymes, for use in liquid or gel detergents or cleaners and in particular relates to a granulate of a sensitive detergent or cleaning agent ingredient. The sensitive detergent or cleaning agent ingredient is mixed with a slurry of particulate carrier material and a polymeric binder that is so viscous under the granule manufacturing conditions that it sticks the remaining ingredients together.

A process for dyeing sodium carbonate is known from DE 102 43 329 B3.

The object of the present invention is to provide a simple and inexpensive to produce and visually appealing laundry treatment composition which provides for a long-lasting scenting and to provide a manufacturing method thereof.

This object is achieved by a laundry treatment composition having the features of claim 1.

The laundry treatment composition of the invention contains
1% by weight to 20% by weight of perfume oils, some of the perfume oils being free perfume oils and part of the perfume oils being encapsulated perfume oils, at least 40% by weight of at least one water-soluble carrier from the group of salts and mono-, di-, Oligo- or polysaccharides and between 0.1 wt.% And 8.0 wt.% Of at least one water-insoluble or substantially water-insoluble inorganic carrier and less than 8 wt.% Surfactants and is in the form of a variety of pastilles.

The scenting composition according to the invention, which in addition to free perfume oils also comprises encapsulated perfume oils which can be added in the form of an aqueous "slurry", can surprisingly be compacted in the form of pellets by roll compacting despite the high proportion of water in the aqueous slurry the lozenges are hard and do not stick together. The agent according to the invention is thus easy to portion.

In addition, the agent of the invention by the added encapsulated perfume oils also allows a delayed perfume delivery, the encapsulated perfume oils attract to the laundry fibers and then put on destruction of the capsules by rubbing o. Ä. the perfume oils free, so that the laundry even after storage in the closet after removing and wearing fresh smells.

The free perfume oils, which are generally dissolved in organic solvents, serve to scent the pastilles and the initial scenting of the laundry. Free perfume oils are all perfume oils that are released during the wash. These include the commonly used free perfume oils, but also perfume oils added in a water-soluble matrix.

In addition, the composition according to the invention can be produced cost-effectively owing to the high proportion of water-soluble carriers from the group of salts or mono-, di-, oligo- or polysaccharides. The water-soluble carriers, which are generally in crystalline form, also contribute to the fact that the formulation can be compacted by the rollers into pellets, the pellets are hard and do not stick. Another advantage of these water-soluble carriers is that dyes attract very well to their surfaces. Since these water-soluble carriers generally have no highly porous and thus strongly scattering surfaces, the colored carriers and therefore the entire composition are generally of brilliantly intense color.

The composition according to the invention additionally comprises at least one water-insoluble or essentially water-insoluble inorganic carrier which serves to absorb the perfume oils and reduces the stickiness.

As the water-soluble salts, alkali or alkaline earth salts of sulfuric acids, phosphoric acids, nitrogen acids, carbonic acid, halogen acids such as HCl, organic acids such as citric acid, succinic acid or tartaric acid or mixtures thereof are preferably selected. Particularly preferred are alkali metal chloride, alkali metal carbonate and alkali metal sulfate, in particular sodium chloride or sodium sulfate or a mixture thereof, since these salts lead to hard non-adhesive lozenges and are also available at low cost. Another advantage of the water-soluble salts is that dyes attract well to the salts.

The proportion of these salts in the composition may be up to 95% by weight, preferably between 40% by weight and 90% by weight and more preferably more than 50% by weight.

As water-soluble mono-, di-, oligo- or polysaccharides it is possible, for example, to use sucrose, maltose, glucose or starch or derivatives thereof which are inexpensive and with which non-adhesive pastilles are likewise produced.

The water-insoluble or substantially water-insoluble inorganic carriers are selected from the group of pyrogenic metal oxides, silica gels, aluminum silicates and inorganic ion exchange materials such as zeolites and serve in particular as a carrier material for the free and encapsulated perfume oils.

Preference is given to using pyrogenic metal oxides as water-insoluble or substantially water-insoluble inorganic carriers, which have a very large specific porous surface area and in particular serve as a carrier material for the free and encapsulated perfume oils. By absorbing the perfume oils, they simultaneously reduce the stickiness of the composition. In addition, the fumed metal oxides can bind water from the slurry of encapsulated perfume oils.

The pyrogenic metal oxides used are preferably porous silica, pyrogenic alumina, fumed silica, silica gel or other aerogels. The pyrogenic metal oxides can be hydrophilic or hydrophobic and thus also partially or completely alkylated.

An advantage of silica gels is that they also act as release agents.

The fumed metal oxides have very large surfaces of more than 50 m ² / g, in particular an inner surface of up to 1,000 m ² / g, and are suitable carriers for the perfume oils.

The composition furthermore contains between 0.1% by weight and 8% by weight of the inorganic carriers, preferably pyrogenic metal oxides, preferably between 0.25% by weight and 6% by weight and particularly preferably between 1.5% by weight and 3, 5% by weight of inorganic carriers, in particular pyrogenic metal oxides, in particular aluminum oxide or silica.

The perfume oil is available both as a free perfume oil, as well as encapsulated perfume oil. By combining free and encapsulated perfume oil, the laundry can be scented both immediately during and after the washing process, as well as for a longer period after the washing process.

The fact that in the composition of the invention, the majority of the perfume oils on the water-insoluble or substantially water-insoluble inorganic carriers, in particular the fumed metal oxides, adsorbed and incorporated into the porous structures, free-flowing, very compact, non-sticky powders are formed.

The proportion of free perfume oils in the composition is between 0.5% by weight and 6% by weight, preferably between 1% by weight and 5% by weight and more preferably between 1.5% by weight and 4% by weight.

Encapsulated perfume oils, in particular as micro- or nanocapsules, are added for a delayed release of perfume, since such capsules often burst only under certain conditions, such as rubbing, and release the perfume oil. The capsules are stored in the washing process only in the fiber of the laundry, and then be present after drying the laundry as a brittle balls. As soon as the laundry is moved, for example, when removing the garment from the wardrobe, bursting a variety of capsules and releases the fragrances, so that the laundry smells of freshness and thus smells again after the used laundry smell.

As material for the capsule walls of the encapsulated perfume oils, for example, melamine-formaldehyde polymers, polyurethane, gelatin, polyamides or polyureas are used.

Surprisingly, it has been found that the capsule walls of the encapsulated perfume oils are not or not significantly damaged during roll compaction. One possible explanation could be the hydrated state of the capsule walls at the time of roll compaction. As a result, the capsule walls do not burst due to the high pressure. Only after the water has completely escaped after drying the laundry, the capsules are mechanically fragile.

In addition, it is also possible to use perfume oils in water-soluble capsules, which release their scent in particular during the washing process. For example, starch and its derivatives are suitable as material for the water-soluble, encapsulated perfume oils. The proportion of encapsulated perfume oil in the composition is between 0.5% by weight and 6% by weight, preferably between 1% by weight and 5% by weight and more preferably between 1.5% by weight and 4% by weight.

If the encapsulated perfume oils are used as slurry, the concentration information refers to the slurry.

The ratio of free to encapsulated perfume oil is between 4: 1 and 1: 4, preferably between 2: 1 and 1: 2, and more preferably between 1.5: 1 and 1: 1.5.

In a particularly preferred variant, the composition according to the invention comprises 1% by weight to 6% by weight of free and 1% by weight to 6% by weight of encapsulated perfume oils, preferably between 1.5% by weight and 4% by weight, and between 1% by weight. 5% by weight to 4% by weight of encapsulated perfume oils.

The composition according to the invention generally has a proportion of free water through the encapsulated perfume oils present in aqueous slurry solution.

The composition of the invention can not be melted below 100 ° C, so that it is not suitable for the production of enamel bodies.

Surprisingly, despite the level of free water, this composition can be compressed into hard, non-stick pastilles by roll compaction, tablet presses, or other suitable compaction technique.

The composition is compactable at room temperature. It is not extruded and not heated during compaction.

The proportion of free polar solvents, in particular water, in particular in the form of the water in the slurry, in the composition can be between 0.5% by weight and 8% by weight of water, preferably between 1% by weight and 2% by weight of water ,

The composition may further preferably comprise from 0.001% to 3% by weight, preferably between 0.5% and 1.5% by weight of dyes, for example quinoline yellow.

In the context of the present invention, it has surprisingly been possible to provide intensively colored laundry pastilles. The hitherto known colored compositions with fumed metal oxides are only weakly colored and, when using quinoline yellow, even so pale that virtually no color is recognized.

According to the invention, a bright, brilliant color of the composition is obtained by applying or dispersing the dyes dissolved or present as a pigment in the first step onto the water-soluble carrier material and only then adding the pyrogenic metal oxides. The free or encapsulated perfume oil can already be present in the first step, but it can also be contacted after the dye solution has been applied to the water-soluble carrier materials, for example the salt, with the water-soluble carrier material.

As a result of this process procedure, the dye initially absorbs on the water-soluble carrier, and the perfume oils are then adsorbed after addition of the pyrogenic metal oxides, in particular on the pyrogenic metal oxides. The adsorption of the dyes on the fumed metal oxides, which leads to the unwanted color fading, is thereby minimized.

It is also possible to work with hydrophobic dyes (e.g., fat red, fat blue, etc.). In this case, the introduced perfume oil on the salt matrix serves as a solvent for the dye and distributes it homogeneously over the salt surface.

The surfactant content of the formulation is preferably less than 5% by weight, in particular less than 3% by weight, and particularly preferably the composition is surfactant-free. Basically, the addition of surfactants leads to a certain stickiness. Especially with masses to be extruded, surfactants are used as plasticizing and extrusion aids. As a result, although a certain cohesion and a certain stickiness are obtained in the mass to be extruded. However, in the production of pastilles which are to be free-flowing, the stickiness of the composition is undesirable because otherwise the pastilles would not be free-flowing. Therefore, the formulation according to the invention has a low level of surfactant or no surfactants, and the pastilles are not extruded, but prepared by roll compaction.

This is also advantageous, since small amounts of surfactant allow the production of label-free products (within the meaning of the GHS).

Unless the surfactant-free composition in roll compaction does not exhibit the desired compaction and the pastilles would tend to "disintegrate" or "crumble", a small amount of surfactant may be added to increase tack.

The surfactants may be selected from the group of anionic, nonionic, cationic or amphoteric surfactants or mixtures thereof, anionic surfactants are preferred.

In principle, all known anionic surfactants are suitable. Among the anionic surfactants are, in particular, the alkyl sulfates such as sodium lauryl sulfate, alkyl ether sulfates, alkylbenzenesulfonates, fatty alcohol sulfates and fatty alcohol ether sulfates, the sulfonates such as the alkyl sulfonates, the olefinsulfonates, the alkoxyalkanesulfonates, the alkylarylsulfonates, the sulfate esters, the alkylcarbonates, alkylethercarboxylates, the fatty acid taurides, the alkyl isethionates and the like Mixture preferred.

Furthermore, the composition may also contain hydrotropes, e.g. Sodium cumene sulphate (e.g., Eltesol SC 93 from Rhodia), excipients such as e.g. Polyacrylic acid, polyethylene glycol 4000-6000, calcium carbonate, microcrystalline cellulose, ethyl cellulose or starch.

The proportion of binders in the composition may be between 0% by weight and 20% by weight, preferably 5% by weight to 17.5% by weight and more preferably 7.5% by weight to 12.5% by weight.

If desired, the composition may also contain release agents such as magnesium stearate, talc, silica gel or glycerol monostearate.

Also disinfectants and / or biocides, especially for use in sports textiles, may be included in the lozenges. Also, the pastilles may contain enzymes, fluorophores, odor absorbers such as e.g. Neutraroma (DROM) or Odorstopp (Givaudan) are incorporated or contain other conventional additives.

Essential in the addition and the amount of all these possible additives is that the composition continues to be compactable and the pastilles obtained remain free flowing and not sticky.

The laundry composition consists of a variety of pastilles, as these are easy to dose. The lozenges are characterized by the fact that they are water-soluble, little or no sticking, are hard and can have a high perfume oil part. A symmetrical or asymmetrical combination of two forms can also be produced by means of roll compaction. Likewise, for example, figurative forms are possible, as far as they can be produced by means of roll compaction.

The lozenges are preferably in the form of cylinders, tablets, pills, lenses, hemispheres, half lenses, pillows or a similar shape. In general, the diameter of a lozenge is between 0.6 mm to 30 mm, in particular 2 mm to 10 mm and particularly preferably 3 mm to 8 mm. The average weight of a troche is generally between 1 mg and 3 g, and preferably between 10 mg and 1 g, and more preferably between 50 mg and 750 mg.

The volume of a troche is generally between 0.01 cm ³ and 1 cm ³ , preferably 0.3 cm ³ to 0.5 cm ³ .

The hardness of the pastilles should be at least 1.5 N, preferably at least 2.5 N and particularly preferably at least 3.0 N.

The pastilles are easy to dose. Depending on the desired scenting, between 1 g and 30 g, preferably between 10 g and 25 g, of the pastilles are added during a wash cycle. The lozenges are well soluble in water.

The pellets have a bulk density of 0.4 g ∙ ml ^-1 to 1.1 g ∙ ml ^-1 , preferably 0.6 g ∙ ml ^-1 to 1.0 g ∙ ml ^-1 .

The pastilles are not transparent. They can be white or colored, preferably they are "gaudy" colorful.

The lozenges are well soluble in water. At a temperature of 25 ° C and an air pressure of 1013 hPa, the pastilles dissolve in 100 times the mass of water with stirring (400 rpm) in less than 30 minutes, preferably in less than 20 minutes, and more preferably in less than 15 minutes up.

In a preferred variant, part of the mass of the water-soluble carrier is brought into contact with a first dye solution in the first step, the first dye solution, for example yellow, being applied to the water-soluble carrier particles. This colored "starting granulate" can now be mixed with the remaining mass of the (non-colored) water-soluble carrier and then further processed accordingly, i. the perfume oils are added. Only then does the addition of the water-insoluble or substantially water-insoluble carrier take place. In the last step, if desired, the other possible ingredients such as surfactants, binders, release agents, etc. are added. If this flowable composition is then compacted between two rollers, colorful speckled pastilles can be obtained.

The pastilles are not pastes. The lozenges are not hydrogels and are not hydrophobic gels.

The lozenges are not sticky and therefore do not stick together in the Dosierbehältnis, so they can be easily dosed.

They are free-flowing.

The lozenges are completely dissolved during a wash cycle.

The invention also relates to the use of the laundry treatment composition consisting of a plurality of pastilles for use alone or in addition to laundry detergents and / or fabric softeners in manual or automatic textile care. Generally, between 1 g and 50 g of lozenges are used for a cleaning or scenting operation. The lozenges can be added both to cold wash water and to hot / hot wash water, that is to say temperatures of at least 60 ° C.

The invention and further advantageous embodiments and developments thereof are described in more detail below with reference to examples and explained. The features to be taken from the description can be applied individually according to the invention or to several in any combination according to the invention.

I. Erfindungsgemäße WäschebehandlungspastillenI. Laundry treatment pastes according to the invention

1. Herstellung1. Production

The composition of the formulations V1 to V4 according to the invention is compiled in Table 1 below .

Tabelle 1Table 1

		V1V1	V2V2	V3V3	V4V4
Chemischer NameChemical name	Funktionfunction	Gew.%Wt.%	Gew.%Wt.%	Gew.%Wt.%	Gew.%Wt.%
C12-Fettalkohol-sulfat Na-Salz C12 fatty alcohol sulphate Na salt	Bindemittel, TensidBinder, surfactant	55
Na-Cumol- sulfonat Na cumene sulfonate	Hydrotro- pikumHydrotro- pikum	1010
NaClNaCl	Wasserlös- licher Träger water- soluble licher carrier	3333	4242	4444	89,989.9
Na₂SO₄ Na ₂ SO ₄	Wasserlös- licher Trägerwater- soluble licher carrier	2828	3939	4242
Polyethylen- glykol 6000 polyethylene glycol 6000	Bindemittelbinder	3,53.5	3,53.5	3,53.5
amorphe Kieselsäure amorphous silica	Wasserun- löslicher TrägerWasserun- soluble carrier	33	33	33	33
Polyacrylsäure polyacrylic acid	Bindemittelbinder	55	55
Stärke Strength	Bindemittelbinder	55
Magnesium- stearat Magnesium- stearate	Trennmittelrelease agent	0,50.5	0,50.5	0,50.5	0,10.1
freies Parfümölfree perfume oil		33	33	33	33
gekapseltes Parfüm (als Slurry)encapsulated perfume (as a slurry)		33	33	33	33
Farbstoffdye		11	11	11	11
Summetotal		100100	100100	100100	100100
Härte [N]Hardness [N]		5±25 ± 2	3±13 ± 1	3±13 ± 1	2±12 ± 1
Auflösezeit [Minuten] (0,25 Gew.% Lösung der Pastillen, 23 °C unter Rühren)Dissolution time [minutes] (0.25% by weight solution of pastilles, 23 ° C. with stirring)		1515		2020

As C12 fatty alcohol sulfate Texapon K12P (Cognis) was used as Na-cumene sulfonate Eltesol SC 93 (Rhodia), as an amorphous silica Cab-O-Sil EH 5 (Cabot), as the polyacrylic acid Sokalan PA 30 CL (BASF), as magnesium stearate Ligamed MF-2-V (Peter Greven), as free perfume oil Mountain Fresh 55 (Givaudan), as encapsulated perfume Spark HD Caps (Givaudan) and as dye Sandolan Turquoise E-AS 1% in NaCl.

For the preparation of the specified dye mixture was first
10 g of an aqueous solution of 10% by weight of dye and 90% by weight of water drummed onto 90 g of sodium chloride, wherein the dye is absorbed onto the surface of the salt and colors it with a strong hue. This dye premix was used for all experiments.

In the preparation according to any of formulas V1 to V4, the dye-sodium chloride premix is then applied to the remaining water-soluble carriers, i. the mixture of sodium sulfate and sodium chloride, drummed.

The free and encapsulated perfume oils can already be present at this first step or added subsequently. At this time, the composition has some stickiness and moisture.

In the next step, the pyrogenic metal oxides are then added. The free and encapsulated perfume oils are predominantly adsorbed on the metal oxides and the tack disappears as the addition of the pyrogenic metal oxides increases. Subsequently, if necessary, further substances such as binders, release agents, disinfectants, etc. are added.

Now, this composition is compacted by roller compacting in pastille form.

The lozenges obtained are hard and not sticky and do not crumble / crumble.

2. Waschversuch2. washing test

For a washing test, 20 g of lozenges according to the invention were used in accordance with V1 of Table 1 in a household laundry at 40 ° C.

After drying the laundry, it smells pleasantly fresh. In the case of tangling or rubbing of the textiles, the fragrance impression is significantly intensified, since the mechanical stress causes the capsules to burst open around the perfume oils and release the fragrances.

3. Härtemessung3. Hardness measurement

The hardness measurements were carried out with the PCE-FG 20SD pressure force meter from PCE Instruments (PCE Germany GmbH) and the included "Stempel" stainless steel measuring tip with a punch diameter of d = 7.9 mm. For defined positioning, the pressure force measuring device was mounted on PCE Instruments PCE-FTS50 test stand (PCE Deutschland GmbH) to ensure an exact vertical displacement.

The hardness measurement was carried out on lenticular pastilles with a diameter of 8 mm and a height of 5 mm at 20 ° C, which were prepared under a contact pressure of 2.2 N / mm ² .

For hardness measurement, the measuring punch was positioned just above the sample surface and the measuring punch moved downwards (lowering speed 2 mm / s) and the maximum measured force value was stored before breaking the tablet. The temperature during the measurement was 23 ° C. In order to take into account possible inhomogeneities caused by the production process, 20 tablets were arbitrarily selected for each recipe and their hardness was determined. The hardness value is then the arithmetic mean of the determined individual values.

II. VergleichsversuchII. Comparative experiment

For comparison, the formulations Dup1 to Dup3 from WO 99/21953 were readjusted and tried to compact the compositions there by means of a roller. For this purpose, tests are first made by default on a hydraulic press in order to assess the stickiness and compactability,

The compositions obtained were sticky in these tests, stuck to the stamp and could not be pressed in the form of free-flowing pastilles.

The comparative experiment was continued with the strongly adhesive fragments which were removable from the press. These sticky fragments dissolved very slowly in water. The dissolution time of a 0.25 wt.% Aqueous solution of the fragments at 23 ° C with stirring (700 revolutions / minute) took 55 minutes for the formulations DUP 1 to DUP3.

Claims

Composition for the treatment of laundry, which composition is in the form of a plurality of lozenges and comprises:

1% to 20% by weight of perfume oils, part of the perfume oils being free perfume oils and part of the perfume oils encapsulated perfume oils,

at least 40% by weight of at least one water-soluble carrier from the group of the salts and the mono-, di-, oligo- or polysaccharides and

0.1% by weight to 8.0% by weight of at least one water-insoluble or essentially water-insoluble inorganic carrier

and less than 8 wt% surfactants.
A composition according to claim 1, characterized in that the water-insoluble or substantially water-insoluble inorganic carriers are selected from the group of pyrogenic metal oxides, silica gels, aluminum silicates and inorganic ion exchange materials such as zeolites.
Composition according to any one of the preceding claims, characterized in that the composition contains between 1% and 10% by weight and preferably between 2% and 5% by weight of encapsulated and between 1% and 10% by weight and preferably between 2% by weight and 5% by weight of unencapsulated perfume oils.
Composition according to one of the preceding claims, characterized in that the encapsulated perfume oils in the form of an aqueous slurry, preferably an aqueous slurry having at least 30 % By weight of water, to be added.
Composition according to any one of the preceding claims, characterized in that the composition comprises between 0.01% and 1% by weight of dyes.
Composition according to any one of the preceding claims, characterized in that the water-soluble carrier is crystalline.
Composition according to one of the preceding claims, characterized in that the salts are selected from the group of inorganic salts, preferably the alkali and alkaline earth salts of sulfuric acids, phosphoric acids, nitrogen acids, carbonic acid, halogen acids or mixtures thereof, in particular alkali chlorides or sulfates, particularly preferred Sodium chloride or sodium sulfate and the mono-, di-, oligo- or polysaccharides from the group of furanoses, pyranoses and their oligo- and polymers, the natural carbohydrates, preferably the sucrose and the amylase / starch are selected and / or the proportion of the water-soluble carriers up to 95% by weight, preferably between 40% by weight and 90% by weight and particularly preferably more than 50% by weight.
Composition according to one of the preceding claims, characterized in that the proportion of water-insoluble or substantially water-insoluble inorganic metal oxides, in particular of the pyrogenic metal oxides, in the composition preferably between 1 wt.% And 5 wt.% And particularly preferably between 1.5 wt. % and 3.5 wt.% And the pyrogenic metal oxides are selected in particular from the group of aluminas and silicic acid.
Composition according to any one of the preceding claims, characterized in that it comprises less than 5% by weight, preferably less than 3% by weight and more preferably less than 1% by weight or no surfactants.
Composition according to any one of the preceding claims, characterized in that the composition does not melt below 100 ° C.
Composition according to one of the preceding claims, characterized in that the pastilles are pressed by means of a roll compacting or by means of a tablet press or another compacting device.
A composition according to any one of the preceding claims, characterized in that the hardness measured at lenticular pastilles made with a diameter of 8 mm and a height of 5 mm under a pressure of 2.2 N / mm² is at least 2N.
Use of a laundry treatment composition consisting of a multiplicity of pastilles according to one of the preceding claims, characterized in that the pastilles are used alone or in addition to laundry detergent and / or softener in manual or automatic textile care.
Process for producing the laundry treatment composition according to any one of Claims 1 to 10, characterized in that the water-soluble carriers, if appropriate together with the free and encapsulated perfume oils, are brought into contact with an aqueous dye solution, the dyes being present on the surface of the water-soluble carrier and only then the water-insoluble or substantially water-insoluble inorganic carrier, in particular the pyrogenic metal oxides, are added.
A process for scenting laundry, characterized in that the laundry treatment composition according to any one of claims 1 to 10 is added at a washing temperature between 15 ° C and 60 ° C.