SK5022000A3 - FABRIC TREATMENT PRODUCT AND TREATMENT METHOD OF GARMENTS BY THISì (54) PRODUCT - Google Patents

Abstract

A fabric treatment product containing a perfume which includes a mixture of fragrance materials, for the treatment of garments containing Spandex3 and other fibres, preferably after wearing thereof, to deposit fragrance materials to a greater extent on the Spandex3 fibres than on the other fibres. The fabric treatment product may be selected from a detergent composition for fabric washing, a pre-treatment composition, a rinse conditioner, or an additive composition for use with any of these.

Description

A composition for the treatment of textiles and a method for treating laundry and clothing with this composition

Technical field

The invention relates to a composition for the treatment of textiles containing spandex fibers.

BACKGROUND OF THE INVENTION

Nowadays, much of the laundry and clothing is made from fabrics that contain a mixture of fibers; some of them may be elastic fibers. The fabric then has the ability to stretch and return to its original state. Spandex fibers are usually used for this purpose. The US Federal Trade Commission has accepted the term spandex as a term denoting the type and designation of the fiber produced, in which the fiber-forming substance is a long-chain polymer consisting of at least 85% segmented polyurethane. A discussion of these fibers can be found in AJ Ultsee's History of Spandex Elastomeric Fibers, a chapter starting on page 278 of Man-Made Fibers: Their Origin and Development, edited by RV Seymour and RS Porter, published by Elsevier in 1993. Spandex Fibers are also referred to as elastane or elastane fibers.

Further descriptions of these fibers can be found under the heading Segmented Polyurethane on page 613 of Gordon J. Cook's Handbook of Textile Fibers, in the 5th edition of the Merrow Publishing Company, 1984. Further descriptions of elestans and their uses can be found in Synthesefasern: Grundlagen, Technology , Verarbeitung und Anwendung, B. von Falkei (ed.), Verlag Chemie (1981). Commercially available elastanes are well known; in particular, products traded under the name LYCRA® are known; LYCRA® is a registered trademark of DuPont de Nemours and Company. The patents relating to said fibers include U.S. Patents 5,000,899, 5,288,779, and 5,362,432.

Applying (depositing) perfume to clothing and other fabrics during washing has been known for many years. Perfume is built into detergents such as

- Detergent compositions for washing textiles and / or fabric softeners (fabric softeners).

Although the perfume serves in particular to cover the basic odor of said detergents and gives an unused composition an attractive odor, it is also retained on the fabrics treated with the wash.

Some perfumes have the ability to act as anti-odor agents (deodorants) against body odor, whether applied directly to human skin or included in laundry detergents. Such perfumes are described in EP-B-3172, US patent applications A-4,278,658, A-4,134,838, A-4,288,341 and A-4,289,641, A-5,482,635 and A-5,555,588.

It has now been found that many fragrances used in perfumery are capable of trapping and adhering to spandex fibers better than many other textile fibers.

SUMMARY OF THE INVENTION

The present invention provides a fabric care composition comprising a perfume composition which is a blend of fragrances and which is preferably deposited on spandex fibers, wherein the perfume composition comprises at least 50% by weight based on the total weight of the perfume blend selected from groups A and B:

Group A: hydroxyl group substances, which are alcohols, phenols or salicylates, which have an octanol / water partition coefficient (P), whose logic logarithm (logw P) is 2,5 or more, and which have a gas-chromatographic Kováts index according to a determination of polymethylsiloxane of at least 1050 as a non-polar stationary phase; and Group B: esters, ethers, nitriles, ketones or aldehydes having an octanol / water partition coefficient (P) of which the logarithm of the logarithm (log ™ P) is 2,5 or more and which have a gas chromatographic Kováts index as determined on polymethylsiloxane as a nonpolar stationary phase of at least 1300.

The invention includes a fabric care composition comprising a blend of fragrances to treat fabrics containing spandex and other fibers, preferably

- for treatment of used (worn) linen and clothing; the fragrances of the composition are deposited to a greater extent on spandex fibers than on other fibers.

In particular, the composition of the invention may be used to treat laundry or clothing prior to its first use. Accordingly, a fabric care composition comprising a perfume composition for treating fabrics containing spandex fibers with a perfume composition prior to the first wear of the fabric may be used in accordance with the present invention, thereby preserving the presence of fragrances on the laundry or clothing after use.

The invention likewise includes a method of treating and maintaining a textile product comprising spandex and other fibers, which comprises contacting the fabric of laundry or clothing with a perfume composition that is a mixture of fragrances to retain the fragrance on the fabric, and subsequently bringing the laundry or clothing in contact with a fabric care composition comprising a perfume composition which is also a mixture of fragrances to retain the entrapped fragrances on laundry or clothing.

In a preferred embodiment of the present invention, the perfume composition used to treat laundry or clothing (or a combination of fragrances deposited on a fabric) is a deodorant perfume; then, according to an embodiment of the invention, a deodorant effect is produced or maintained on the laundry or clothing.

Various aspects of the present invention, preferred embodiments of the invention, and suitable materials are discussed in more detail below.

textiles

The laundry or clothing to which this invention relates are made of fabrics containing spandex and other fibers. It has already been mentioned that the term spandex refers to manufactured fibers in which the fiber-forming substance is a synthetic long-chain polymer compound consisting of at least 85% segmented polyurethane.

The polymer which is spun into spandex fibers is then a copolymer containing urethane bonds. Generally, said polymer comprises so-called soft (i.e. low melting point) segments, which may be

-4-polyalkylene ethers or polyesters and so-called hard (i.e., higher melting points) segments, which are partly derived from the reaction of an isocyanate and a chain extender, which is typically a diamine.

Said soft segments may be poly (tetramethylene) ethers optionally containing substituted tetramethylene glycol residues as described in U.S. Patent 5,000,899. Organic diisocyanates may be used which include common diisocyanates, for example diphenylmethane-4,4'-diisocyanate, also known as methylene bis (4-phenylisocyanate) or as MD1, 2,4-tolylene diisocyanate, methylene bis (4-cyclohexylisocyanate), isophorone diisocyanate, tetramethylene p-xylylene diisocyanate and the like. MDI is preferred.

Extenders are used to prepare the hard fiber segments, preferably including one or more ethylenediamines (EDA), 1,3-propylenediamine, 1,6-cyclohexanediamine, hydrogenated m-phenylenediamine (HPMD), 2-methylpentamethylenediamine (MPMD), and 1,2. -propyléndiamín. Most preferably, the chain extender is one or more of ethylenediamine, 1,3-propylenediamine and 1,4-cyclohexanediamine, optionally mixed with HPMD, MPMD and / or 1,2-propylenediamine.

Spandex fibers with poly (tetramethylene) ethers as soft segments are fibers from DuPont de Nemours International S.A. with the LYCRA® trademark of DuPont de Nemours and Company.

The spandex fibers are usually blended with other fibers, such as cotton, polyamide fibers, wool, polyester fibers and acrylic fibers, and processed into yarn, which is then processed into textile products. The spandex fiber content is usually in the range of from 0.5% to 50% by weight based on the weight of the yarn or fabric, but more often from 1% to 30% by weight.

Spandex fiber fabrics can be used on a wide variety of linen and apparel, including sportswear, underwear, knitwear and a variety of casual wear.

-5Flavors

It has been found that many of the fragrances are well retained or retained on spandex fibers. These substances include the following two groups of substances:

Group A fragrances:

hydroxyls, which may be alcohols, phenols or salicylates, having a partition coefficient (P, octanol / water, expressed as a logarithmic logarithm logarithm) of 2,5 or more and having a gas-chromatographic Kováts index (determined on polydimethylsiloxane as a nonpolar stationary phase of at least 10) .

Group B fragrances:

esters, ethers, nitriles, ketones or aldehydes having a partition coefficient (P, octanol / water, expressed by a logarithm of logwP) of 2,5 or more and having a gas-chromatographic Kováts index (determined on polydimethylsiloxane as the non-polar stationary phase) of at least 1300.

The octanol / water partition coefficient (or commonly its log P logarithm) is well known in the literature as an indicator of hydrophobicity and water solubility (see Hansch and Leo, Chemical Reviews 71, 526-616 (1971); Hansch, Quinlan and Lawrence, J. Organic Chemistry 33, 347-350 (1968)). Values of said coefficient, which are not available in the literature, can be determined directly or estimated approximately using mathematical algorithms. Software that allows such determination is commercially available, such as 'LogP' from Advanced Chemistry Design Inc.

A requirement of log ^ P of 2.5 or higher means that they are slightly hydrophobic.

The Kováts indexes are calculated from the retention time of gas-chromatographic measurements in relation to the retention time of the alkanes (see Kováts, Helv. Chim. Acta 41, 1945 (1958)). These indices, based on the use of the non-polar stationary phase, have been used in the perfumery industry for years as an indicator associated with the size of the molecule and the boiling point of the ingredients. An overview of the Kovacs indices in the perfumery industry is provided by T. Shibamoto in Capillary Gas Chromatography in Essential Oil Analysis, pp. 259-274, P.Sandra and C. Bicchi (eds.), Huethig (1987). A commonly used suitable non-polar phase is 100% dimethyl polysiloxane which is

6, available under various trade names such as HP-1 (Hewlett-Packard), CP Sil 5 CB (Chrompack), OV -1 (Ohio Valley), and Rtx -1 (Restek).

Substances with a low Kováts index tend to be volatile and do not retain well on many fibers.

It has been found that if the perfume substances have a partition coefficient as described above and at the same time a relatively high value of the Kováts index, the capture (retention) and retention on the spandex fibers tends to be more efficient than on the other fibers. In particular, the perfume composition comprises at least 50%, preferably at least 70% or 80% by weight of the substances of the two groups.

Compared to other fibers, the capture and retention (deposition and retention) on spandex has been found to be significantly better when these are substances from the above two groups having a Kováts index not higher than 1600. These subgroups of substances from groups A and B may be referred to as A 'and B'. It is preferred that the perfume composition comprises at least 10% by weight, more preferably at least 20% or 25% by weight thereof. In some preferred perfumes, the proportion of fragrances from groups A 'and B' together is at least 40% by weight.

Such fragrances are slightly volatile (i.e., transient between the volatile fragrances used as top notes and the low volatility substances typically used as a perfume base). Said medium volatile substances on non-spandex textile materials (such as cotton, polyamide and polyester) often do not appear at all after washing and drying or are not perceived in such a small amount at all.

The group A comprises alcohols of the formula ROH, wherein the hydroxyl group may be primary, secondary or tertiary and the R group is an alkyl or alkenyl group, optionally branched or substituted, cyclic or acyclic; said alcohols have a partition coefficient and Kovacs parameters as described above. Alcohols with a K50 index of 1050 to 1600 are typically monofunctional alkyl or arylalkyl alcohols having a molecular weight in the range of 150 to 230.

The group A also includes phenols having the general formula ArOH, wherein the Ar group represents a benzene ring which may be substituted by one or more

-7alkyl or alkenyl groups, or an ester moiety of -CO ₂ A, wherein A is a hydrocarbon radical; in which case said compound is a salicylate. The ArOH have a partition coefficient and a Kováts index as above. Said phenols having a Kovar index of 1050 to 1600 are typically monohydroxyl phenols having a molecular weight in the range of 150 to 210.

Particularly preferred is a subset of fragrances having a partition coefficient of 1000 or more, i.e. a log wP of 3 or more, and a Kovacs index of 1100 up to 1600.

The following table lists some examples of hydroxyl components that meet the Group A 'criteria listed above. Asterisks indicate substances in the table that are from a very preferred subgroup. Semi-trivial names used in basic texts known in the perfume industry have been used, in particular: Common Fragrance and Flavor Materials by Bauer, Garbe and Surburg, 2nd edition, VCH Publishing, 1990, and Parfume and Flavor Materials by Steffen Arctander, published by the author in two works (1969).

Examples of fragrances in Group A ': 1- (2'-tert-butylcyklohexyloxy) -butan-2-ol 3-methyl-5- ^(2, 2 ^', 3'-trimethyl-cyclopent-3-enyl) pentan-2-ol 4-methyl-3-decene-5-ol amyl salicylate * 2-ethyl-4- ^{(2, 2, 3, -trimetylcyklopent-3-enyl)} but-2-enol (Bangalol, TM) Borneo karvacroľ Citronelle 9-decene Dihydroeugenol dihydrolinaloľ dihydromyrcenol dihydroterpineol *

eugenol geraniol hydroxycitronalaľ isoamyl salicylate * izobutylsalicylát * isoeugenol linalool menthol * nerolidol nerol * para-tert-butyl cyclohexanol fenoxanil terpineol Tetrahydrogeraniol tetrahydrolinalol tetrahydromyrcenol thymol 2-Methoxy-4-methylphenol (Ultravanil, TM) (4-isopropyl-cyclohexyl) -methanol

A few examples of fragrances that are in Group A but have a Kovacs index of more than 1600 (i.e., are outside Group A '): Patchouli alcohol farnesol benzyl salicylate and hexyl salicylate.

Group B are esters of ketones, aldehydes, nitriles or ethers having an octanol-water partition coefficient of logwP of at least 2,5 and a Kováts index of at least 1 300 (non-polar phase).

Group B components generally have the formula RX in which X has a primary, secondary or tertiary position and is one of the following:

-9-COA, -OA, -CO ₂ A, -CN, or -CHO. The groups R and A are hydrocarbon, cyclic or non-cyclic and optionally substituted radicals. In some embodiments of the present invention, substances having a free hydroxy group are excluded in Category B; if a hydroxyl group is present, then said substance can only be considered as a group A substance. A typical example of a Category B substance with a Kováts index not exceeding 1600 (which may be referred to as a Group B 'substance) is single-functional compounds with molecular weights ranging from 160 to 230.

Particularly preferred is a subgroup of fragrances of group B 'having a Kováts index ranging from 1350 to 1600 and having a molecular structure with a ring, for example a phenyl ring or a cycloalkyl ring.

The table below lists some fragrances that meet the above criteria for Group B '. Asterisks denote substances from the subgroup of highly preferred substances.

Examples of Group B 'fragrances 1-Methyl-4- (4-methyl-3-pentenyl) -3-cyclohexene-1-carbaldehyde * 1- (5 ', 5'-dimethyl cyclohexenyl) pentene-1-one * 2-heptylcyklopentanón * 2-methyl-3- (4'-tert-butylphenyl) propionaldehyde 2-methylundecane 2-undecanol 2,2-dimethyl-3- (4'-ethylphenyl) propanal 3- (4'-isopropylphenyl) -2-methylpropanal 4-methyl-4-phenyl-pent-2-yl acetate * allyl cyclohexylpropionate * alylcyklohexyloxyacetát * ambrettolide * methylethylketone trimers (Azarbre ™) benzophenone * 3- (4'-tert-butylphenyl) propanal (Bourgeonal ™) caryophyllene *

c / 's-jasmonate * diethyl acetal citrate diethyl acetal lemon citronelylacetát Phenylethylbutyl ether (Cressanther ™) and damascone * β-damascone * Δ * damascone γ-decalactone * dihydroizojasmonát * dihydrojasmonate * dihydroterpinylacetát and dimethyl * diphenyl * methane * dodecanal dodecene-2-al dodekánnitril 1-ethoxy-1-phenoxyethane (Efetaal ™) S-1'-ethoxyethoxy-5''-dimethylocta-1.e-diene (Elintaal Forte ™) 4- (4'-Methylpent-3'-enyl) -cyclohex-3-enal (Empetaal ™) Ethyl tricyclo [5.2.1.0 ~ 2.6 ~] decane-2-carboxylate * 1- (7-Isopropyl-5-methylbicyclo [2.2.2] oct-5-en-2-yl) -1-ethanone * (Felvinone ™) Allyltricyclodecenylether * (Fleuroxene ™) tricyclodecenyl propanoate * (Florocyclene ™) γ-undecalactone * n-methyl-n-phenyl-2-methylbutanamide * (Gardamide ™) tricyclodecenyl isobutyrate * (Gardocyclene ™) geranyl

hexyl benzoate * α-ionone * β-ionone * izobutylcinamát * izobutylchinolín * izoeugenylacetát * 2,2,7,7-tetramethyltricycloundecan-5-one * (Isolongifolaone ™) tricyclodecenylacetate * (Jasmacyclene ™) 2-Hexylcyclopentanone (Jasmatone ™) 4-Acetoxy-3-pentyltetrahydropyran * (Jasmopyrane ™) Ethyl 2-hexyl acetate (Jessate ™) 8-isopropyl-6-methylbicyclo [2.2.2] oct-5-ene-2-carbaldehyde (MACE ™) methyl 4-isopropyl-1-methylbicyclo [2.2.2] oct-5-ene-2-carboxylate * methylcinnamate a-izometyljónon * metylnaftylketón * Nerolin γ-nonalactone nopyl acetate * para-tert-butylcyclohexyl 4-Isopropyl-1-methyl-2- [1'-propenyl] -benzene * (Pelargene ™) phenoxyethyl * fenyletylizoamyléter * fenyletylizobutyrát * tricyclodecenyl pivalate * (Pivacyclene ™) Phenylethyl pivalate (Pivarose ™) fenylacetylaldehydhexylenglykolacetáľ 2,4-Dimethyl-4-phenyl-tetrahydrofuran (Rhubafuran ™) rose acetone *

-12terpinylacetát

4-Isopropyl-1-methyl-2- [1'-propenyl] benzene (Verdoracine ™) yara * (4-isopropylcyclohexadienyl) ethyl formate

The following table gives examples of fragrances that meet the criteria of Group B but have a Kováts index of over 1 600 and are therefore outside Group B ':

Substances from Group B but outside Group B * amyl benzoate amylcinamylaldehyd amylcinamylaldehyde dimethyl acetal cinamylcinamát cyclamenaldehyde 1,2,3,5,6,7,8,8a-octahydro-1,2,8,8-tetramethyl-2-acetylnaphthalene (izo E super ™) Cyclo-1,13-ethylenedioxytridecane-1,13-dione (ethylenebrassylate) cyclopentadecanololide (Exaltoide ™) 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylcyclopenta [g] -2-benzopyran (Galaxolide ™) geranylfenylacetát hexylcinnamylaldehyd 6-Acetyl-1-isopropyl-2,3,3,5-tetramethylindane (Traseolide ™) 1,1'-N, N'-hexamethyl-e-acetyl-1,2,3,4-tetrahydronaphthalene (Tonalid ™)

It has already been stated that it is very advantageous to use a perfume composition having deodorant properties. Preferably, said perfume is a deodorizing perfume having a cotton odor reduction value of at least 0.25, preferably at least 0.5; the determination of the odor reduction value by the test is described below and is generally described in EP-A-147 191 and the corresponding US patent application

663 068.

The present inventors have found that, compared to conventional fabrics such as cotton, polyamide and polyester spandex-free fabrics, the deodorizing effect of the perfume increases when spandex fibers are present in the fabric. Said enhanced deodorizing effect may be determined by a odor reduction test adjusted to use one perfume instead of different perfumes and to change the test fabric.

Determination of odor reduction value

The odor reduction value of the deodorant perfume is determined by this test by assessing the efficacy of the perfume after application to the fabric and then contacting the fabric with the axilla (armpit) of a group of humans; After the chosen time of exposure of the fabric samples in the axilla, skilled artisans evaluate the samples by smell. The evaluation can calculate the odor reduction value, which is a measure of the effectiveness of the perfume deodorizing effect tested.

A perfume-treated fabric is first prepared. The selected fabric is cut into pieces of 20 x 20 cm; similarly the control - comparative. fabric. The fabrics are washed in a drum-type washing machine with front opening and insertion; a conventional non-perfumed washing powder, consisting of the following components:

component: Weight parts: sodium dodecylbenzenesulfonate 9.0 C ₁₃ . ₁₅ alcohol 7 EO 4.0 sodium tripolyphosphate 33.0 sodium silicate 6.0 sodium carboxymethylcellulose 1.0 magnesium silicate 1.0 ethylenediaminetetraacetic acid 0.2 sodium sulfate 15.0 Water 10.8

The fabric pieces are then rinsed with cold water and finally dried. The fabric squares prepared in this way are untreated fabrics, i.e., perfume-free fabrics, free of other deodorants, textiles and without other water-soluble substances, which could adversely affect the course of the odor reduction assay.

Untreated fabric pieces are divided into two groups; one part is no longer washed and represents a comparative test procedure series. A second portion of the fabric pieces is washed again in said scrubber using the same scouring powder, in addition to which 0.2% by weight of the perfume tested has been added. After rinsing with cold water, the fabric pieces were dried again. The pieces prepared in this way are test fabrics, i.e. fabrics to which perfume has been applied.

If this test is used to assess the performance of the perfume composition, the comparative and test pieces of the fabric are of the same material, suitably 100% cotton linen; the untreated fabric is again used for comparison without further washing. However, the assay may also be used to evaluate other effects, for example, to assess the perfume capture on various fabrics; then the test fabrics will be different from the comparative fabrics and both fabrics will be washed in the same manner using a perfumed washing powder.

In the second step, a self-assessment is performed. A team of 3 white women between 20 and 40 years of age shall be selected for consideration; the judges are able to properly rank the odor levels of a series of standard aqueous isovaleric acid solutions (listed below) and are able to label the odors with a numerical rating) according to the intensity of the odor of the solutions. The judges will numerically evaluate the body odor of the canvas worn by the man in the armpit for a specified period of time.

A 40-member group of white men aged 20-55 who exposed the fabric participated in this trial. This group was determined by a selection of persons who were found not to produce an unusually strong body odor and do not have a stronger odor in one armpit than in the other. Persons who produce an unusually strong body odor, for example as a result of a diet, including the consumption of curry or garlic, have not been selected for this group.

Two weeks before the start of the trial, a group of judged men used exclusively unpumped, non-deodorant soap for washing, and participants had

-15 prohibited from using any kind of deodorant or antiperspirant. After this period, a group of 40 men was randomly divided into two groups of 20.

The fabric test and comparative pieces were then affixed to 40 pure cotton or polyester / cotton shirts in the armpit area such that in 20 baskets the fabric comparative pieces were affixed in the left armpit area and the fabric test pieces were affixed to the right armpit area. In the second group, the placement of the pieces of fabric was reversed.

the men wore 5 hours shirts with attached pieces of fabric; during this time, each of the above men performed their normal work without unnecessary exercise.

After the 5 hour exposure time and the shirt stripping, the inserts were loosened; exposed fabric samples were placed in polyethylene bags and subsequently evaluated by a group of experienced reviewers.

The odor intensity of each piece of fabric was evaluated by all three assessors; the assessors were not informed of which are the test and

Which comparative pieces of fabric or what mark the sample gives the second co-judge? The assessor smelled each fabric sample and awarded its mark according to the odor strength on a scale of 0 to 5, with 0 representing no odor and 5 representing a very strong odor.

In the assessment of odor, a reference set of standard aqueous isovaleric acid solutions was used as a judgment aid; individual solutions correspond to marks 1, 2, 3, 4 and 5:

mark odor level concentration of aqueous isovaleric acid solution (ml.dm ³ ) 0 odorless 0 1 slight odor 0,013 2 distinct odor 0,053 3 medium odor 0.22 4 strong odor 0.87 5 very strong odor 3.57

-16The marks assigned to each judge were averaged for each piece of canvas. The average score of the fabric test pieces was compared to the average score of the untreated fabric comparator pieces, and this comparison resulted in an odor reduction value.

As a check that persons were suitably selected for the test group, the criterion was that the average score after exposure to untreated fabric should be between 2.5 and 3.0.

Preferred deodorant perfumes are perfumes whose odor reduction value is at least 0.50, or 0.70 or 1.00. The higher the minimum value, the more effective the fragrance test is than the deodorant. It should also be noted that consumers who are not trained as assessors may see a reduction in the smell of soiled laundry such as shirts, blouses and underwear when self-assessment, if the odor reduction value is at least 0.30; the higher this value is above that level, the more pronounced the deodorizing effect of the perfume will be.

The choice of a combination of fragrances to achieve a deodorant effect is explained in patents, for example, in the aforementioned U.S. Pat. No. 4,304,679. Other methods of selection include U.S. Patents 5,482,635 and 5,554,588, which have also been mentioned.

Said selections may be made by selecting substances with preferred values of partition coefficients and Kovacs indexes as discussed above.

U.S. Patent No. 5,501,805 discloses perfume compositions formed by a combination of fragrances, wherein the composition is formulated as a deodorant fragrance with a faint odor. Said fragrance perfumes may also be used in the present invention.

Fabric care products

The fabric care composition used as a carrier for depositing perfume for laundry or clothing after wearing may be any of the following:

detergent for textiles, prewash for use on selected items of laundry or clothing before washing,

-17 prewashing agent for use to soak whole items of laundry or clothing before washing, rinse aid (fabric softener for rinse aid) to soften washed textile products during rinse, laundry additive for use with any of the aforementioned detergent, fabric softener which is placed together with the fabrics when they are dried, or as a spray for direct use on dry linen or clothes.

Said fabric care compositions may take various forms including powder form, lump form, stick form, tablet, foam, gel, liquid form, spray form; they may also take the form of fabric softeners for insertion into a tumble dryer together with the laundry. The amount of perfume in said products may range from 0.1% to 10% by weight. The incorporation of perfume into products of the above-mentioned types is known and one of the known methods can be used to incorporate the perfume of the present invention. The perfume can be incorporated directly into the composition, or the perfume can be absorbed on the carrier and the mixture of the carrier and the perfume can then be blended into the textile adjuvant. The second process is suitably applied to solid textile auxiliaries and carriers in particulate systems are used.

Fabric care compositions also include perfume carriers to be placed close to or between the laundry or clothing, for example, in cloth cabinets or linen, wherein the perfume is deposited on the clothing and laundry by diffusion through air or by direct contact with the clothing. Said perfume carrier may contain up to 40% by weight of the perfume. They preferably consist of a solid carrier, for example in the form of a powder, beads, strips or pieces of porous material, which are (are) impregnated or saturated with the perfume composition.

The perfumed laundry detergent composition of the present invention will normally contain a detergent surfactant in an amount of 2 to 50%, preferably 5 to 40% by weight, based on the composition and builder in an amount of 5 to 80% by weight. with respect to the mixture. The remainder of the composition up to 100% may consist of additives known as laundry detergent additives

-18 products, including bleaching agents. For example, one or more soaps or non-soap-based anionic, cationic, nonionic, amphoteric or zwitterionic surfactants or combinations thereof may be used as surfactants. Preferred useful surfactants are soaps and synthetic non-soap anionic and nonionic compounds. Mixtures of surfactants, such as mixed anionic or mixed anionic and nonionic compounds, are often used in detergent compositions.

Builders are substances whose task is to soften hard water by dissolving or otherwise removing the hardness of the water formed by calcium salts and, to a lesser extent, magnesium salts. The most common water-soluble activating additive is sodium tripolyphosphate. Another water-soluble inorganic activating additive is sodium carbonate, which is generally used together with crystallization seeds to accelerate the precipitation of calcium carbonate. Commonly used insoluble inorganic builders are zeolites and layered silicates. Organic builders such as sodium citrate and polyacrylate may also be used.

Some detergents, typically liquid, are formulated to contain from 5 to 50% by weight of surfactant, but little or no laundry detergent adjuvant.

Detergents usually contain additives; additives include, but are not limited to, alkali metal silicate, peroxygen or chlorine bleach, fabric release agents, heavy metal sequestrants, fabric reject agents (antiredeposition agents), e.g., carboxymethylcellulose, enzymes, enzyme stabilizers softening agents, including emollients, fluorescent brighteners, antifoams, or inverted foam enhancers and fillers such as sodium sulfate.

Prewashing agents for soaking soiled fabrics prior to the main wash may contain 5 to 80% by weight detergent adjuvant and little or no surfactant. These compositions then often contain enzymes.

The perfume content of the detergent or prewash will generally be in the range of 0.1 to 2% by weight, based on the weight of the composition.

The fabric softener compositions may contain from 1 to 40% by weight of the fabric softener composition; it can be a textile softening agent, or it can also be a highly concentrated product-concentrate. Textile softening agents are often non-ionic or cationic organic compounds comprising at least one alkyl, alkenyl or acyl group having 8 or more carbon atoms; said organic compounds include, but are not limited to:

(a) quaternary ammonium and imidazolinium compounds and the corresponding tertiary amines and imidazolines containing at least one, preferably two, C ₈ to C 30 alkyl or alkenyl groups; they also include alkyl groups containing an ether, ester, carbonate or amide bond, ethoxylated derivatives and analogs of such compounds, and also include compounds with more than one tertiary or quaternary nitrogen atom;

b) aliphatic alcohols, esters, amines or carboxylic acids of C ₈ to C 30 alkyl, alkenyl or acyl, vrtátane sorbitan esters and polyhydric alcohol;

c) silicones, mineral oils and polyols, such as polyethylene glycol.

Many textile fabric softeners are disclosed in U.S. Pat. No. 4,137,180 and EP-A-239,910.

Textile fabric softeners to be added to the rinse fluid are often in the form of aqueous dispersions of a softener additive in water. They can also be made in powder form.

The amount of perfume in the fabric softener compositions and powders is usually 0.1 to 2% by weight. The preferred level of perfume may vary depending on the concentration of the softening agent and market requirements.

The amount of perfume in highly concentrated fabric softener compositions may range from 0.1 to 10% by weight, preferably 2 to 8% by weight.

The fabric softener belts are designed to be placed in a tumble dryer along with wet, rinsed linen. The fabric softener products comprise textile

A softening agent, which may be the aforementioned nonionic compound, a soap and / or a fatty acid, which melts at the temperatures reached in the laundry dryer. The softening additive is applied to the porous web. May contain silicone oil. The amount of perfume in such products is usually from 2 to 10% by weight, based on the total weight of the composition.

Another form of fabric care product is a liquid carrier containing perfume and in a container from which the composition is dispensed, for example, by spray. This type of spray can be marketed as a refreshing spray for clothing. In these products, the perfume content is in the range of 0.1 to 10% by weight, based on the weight of the entire liquid composition.

The compositions of the invention can be used to maintain the presence of perfume on the laundry and garment whose fabrics have been treated with perfume during the manufacturing process before the garment is first worn. Said treatment of the laundry and clothing prior to wearing may be carried out by treating the yarn from which the textile product is made in the next process, or by treating the textile fabric in the form of a fabric or piece of fabric from which the laundry or clothing has not yet been manufactured, or or clothes that have not been worn yet. These perfumes are preferably deposited in the composition of the invention.

Refining is a manufacturing step in the manufacture of woven fabrics to improve the touch properties and surface appearance. The fabric is typically treated with an aqueous solution containing a fabric softener or other fabric to be retained on the fabric in an amount of up to about 3% by weight relative to the fabric. The aqueous solution may contain a perfume such that its entrapped amount on the fabric is about 0.001 to 1% by weight relative to the fabric.

Treatment with the perfume composition is carried out in the conventional processing of the fabric by other finishing means, particularly in a wet condition, when the yarn or fabric comes into contact with the finishing agent to improve the touch properties and appearance.

In the conventional fabric refining step, fabrics may be used which include resins to impart stiffness, durability or permanent non-iron treatment to the fabric, flame retardants, textile brighteners, anti-steaming agents, fabrics

-21 imparting dirt and stain retention and water repellent properties to the fabric.

Usually, a conventional technique well known in the textile industry, such as carbonation and suction, is used for application.

DETAILED DESCRIPTION OF THE INVENTION

Example 1

The example describes the deposition of perfume on spandex fibers. A mixture of perfume ingredients (perfume mixture) is prepared and added to the unfumed but otherwise all laundry detergent-containing ingredients to achieve a perfume concentration of 0.5% by weight.

The prepared perfume powder was used to wash test pieces of cloth that had not been treated with any perfume. The cloths were pure cotton and others were a blend of 95% cotton and 5% spandex. After washing, the cloths were rinsed and then air dried overnight. The perfume was extracted from the dry cloth with an organic solvent and the extracts were determined by gas chromatography for the contents of the perfume. If the concentrations of the perfume ingredients in the spandex canvas extracts were 5 to 20 times higher than the pure cotton canvas, the result was referred to as a slight increase (M). If the concentration of the perfume ingredients was 20-fold or higher, the result was designated as a high increase (H) and if the concentration of the perfume ingredients was less than 5-fold or not measurable, it was reported as low (L). The results obtained are:

component K ' log P increase Group Boisamrén Forte 1 714 5.5 M B benzylacetone 1 206 2.0 M - citronellol 1 206 3.6 H A ' 2,6-dimethyl-heptan-2-ol 975 2.9 L - jasmacyklén 1 394 2.9 H B ' methyl salicylate 1 167 2.3 L -

2-phenylethanol 1 087 1.4 L - terpinyl 1 331 4.0 H B ' tetrahydrogeraniol 1 180 3.6 H A ' tetrahydrolinalol 1 083 3.5 H A ' tonalide 1 840 6.4 M B Yara 1 416 3.2 H B '

* Measured on OV-1 polydimethylsiloxane (Ohio Valley) as a stationary phase using capillary gas chromatography, ** measured or determined using logP software from ACD Inc.

Example 2

Two perfume mixtures contained individual components from the following groups:

perfume Group A Group B from the subgroup A ' from group A but not from subgroup A ¹ from the subgroup B ' from group B but not from subgroup B ¹ A 35.1% 4.5% 46.6% 5.0% B 41,8% 0 43.8% 7.5% C 27.6% 4.0% 29.0% 21,2%

Perfumes A, B, and C were used in the odor reduction assay using 95% cotton and 5% spandex canvas pieces. A non-perfumed laundry powder and a pure cotton test cloth were used as a comparative control. Test results:

Perfume A Perfume B Perfume C Average grade in file 1.04 1.29 1.57 mark in the comparison file 2.46 2.46 2.46 odor reduction value 1.42 1.17 0.89 relative odor reduction ratio in% of the comparative mark 57.7% 47.4% 36.1%

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Claims (8)

PATENT CLAIMS A fabric care composition comprising a perfume composition which is a mixture of fragrances and which is preferably deposited on spandex fibers, characterized in that the perfume composition comprises at least 50% by weight, based on the total weight of the perfume composition, of fragrances, selected from groups A and B: Group A: hydroxyl group substances, which are alcohols, phenols or salicylates, which have an octanol / water partition coefficient - P, whose decimal logarithm - logw P is 2,5 or more, and which have a gas chromatographic Kováts index as determined by polymethylsiloxane as a non-polar stationary phase of at least 1050; and Group B: esters, ethers, nitriles, ketones or aldehydes having an octanol / water partition coefficient - P, whose logarithmic logarithm of logio P is 2,5 or more, and which have a gas chromatographic Kováts index as determined on polymethylsiloxane as non-polar a stationary phase of at least 1300. Composition according to claim 1, characterized in that the perfume composition contains at least 10% by weight, based on the weight of the composition, of fragrances selected from the groups of: Group A ': hydroxyl group substances, which are alcohols, phenols or salicylates, which have an octanol / water partition coefficient (P) of which the logarithm of the logarithm (log ₁₀ P) is 2,5 or more and which have a gas-chromatographic Kováts index (as determined on polymethylsiloxane as the non-polar stationary phase) in the range 1050 to 1600, and Group B ': esters, ethers, nitriles, ketones or aldehydes having a partition coefficient (P) in the octanol / water environment, whose logarithm (logio P) I ^t of 2.5 or higher, and a gas chromatographic Kovats with the index (as determined on polymetylsiloxáne as non-polar stationary phase) of 1300 to 1600 values. -243. The composition according to claim 1 or 2, characterized in that it is a detergent. The composition according to claim 3, characterized in that it is selected from the group: laundry detergents, prewash means, rinse means and textile belts for fabric softening. Composition according to claim 4, characterized in that it is a detergent comprising a surfactant in an amount of from 2% to 50% by weight, based on the weight of the composition and an activating additive in an amount of from 5% to 80% by weight, based on the weight of the composition. . A composition according to claim 1 or 2, characterized in that it is in the form of a spray. Composition according to claim 1 or 2, characterized in that it is in the form of a solid carrier impregnated with a perfume composition. A method of treating laundry and clothing comprising spandex and other fibers, comprising contacting the laundry or clothing with a fabric care composition according to any one of the preceding claims 1 to 7. A method according to claim 8 for maintaining the presence of deposited fragrances on the laundry or clothing, characterized in that the laundry or clothing has been contacted with the perfume composition of any one of claims 1 to 7 during treatment.