ES2238293T3 - COMPOSITION OF TREATMENT FOR CARE OF FABRICS AND A PROCEDURE TO TREAT FABRICS. - Google Patents

Abstract

A tissue care composition, comprising a radical photoinitiator with linkage breakage

Description

Composition of treatment for care of tissues and a procedure to treat tissues.

The present invention relates to a composition for the treatment of tissue care comprising a new system for the care of color and treatment of spots The present invention also relates to a process to treat tissues using the new system for the care of color and treatment of stains. The present invention furthermore refers to the use of the new color care system and stain treatment in the care treatment of tissues.

Background of the invention

The present invention deals with the treatment of tissues that take place after tissue use, in particular for the reverse degradation of tissues that occurs as a result of that use, for example of getting dirty and staining. Such treatments Tissue care is referred to herein. Treatments for tissue care include washing and ironing and application of non-detergent-based fabric care products, such as aerosol products. Attention has been devoted considerable to the components to include in compositions for the care of tissues that are specifically intended for care of color For example, these components may comprise dye transfer inhibitors, stain removers, inhibitors of photodecoloration, and fluorescence inhibitors.

European Patent Application No. 972001077 discloses a detergent composition for washing the tissue in which a specific polymer system is included to provide Stain remover advantages. International Patent Application No. PCT / EP97 / 07289 discloses tissue treatment compositions which comprise a material such as sunscreen to prevent damage from the sun to the color. WO95 / 13354 discloses compositions that comprise polymers such as PVPNO (N polyvinyl oxide pyridine) and N-vinyl copolymers pyrrolidone / N-vinyl imidazole as inhibitors of dye transfer The document EP-A-0035470 discloses a composition for textile treatment comprising a component photo whitening The photo whitener material has some effects against stains, but can also attack the dye.

The present inventors have also sought more components for color care and to treat stains that are suitable for incorporation into care compositions of tissues.

The present inventors have discovered that radical photoinitiator systems that work by mechanisms of link breakage can act as components for the care of color and remove stains in compositions for the care of tissues.

WO9612785 documents, US-A-3915974 and JP08239700A unveil each using materials that have initiation properties of the radical as perfume ingredients. All these materials they work by a mechanism of hydrogen abstraction in addition to by a link break mechanism.

The same radical photoinitiators are fine known and used in the unrelated fields of the polymerization, polymer crosslinking and curing reactions in materials.

Definition of the invention

The present invention provides by consequently a tissue care composition, which It comprises a radical photoinitiator with link breakage.

The present invention further provides a procedure for the treatment of tissue care, which includes treating the tissue with a radical photoinitiator with link breakage

The present invention further provides the use of a radical photoinitiator with link breakage in a procedure for tissue care treatment.

It has also been discovered that the photoinitiator radical of the present invention has the advantage of being stable in solution if kept in the dark. It was discovered that I don't know degrade spontaneously in storage.

In addition, it has been discovered that the photoinitiator radical of the present invention will act on stains without the need shake This has the advantage that they can be used in Simple application procedures. In addition, damage can be avoided to fabrics, such as fibrillation.

It has been discovered that the systems of radical photoinitiator according to the present invention are soluble or dispersible in a medium other than water and can be used in Dry cleaning only for garments.

Finally, it was discovered that the photoinitiator radical of the present invention can have an effect bactericide.

Detailed description of the invention Radical photoinitiators

Radical photoinitiators suitable for use in the present invention are components that produce radicals able to attack the spots in the tissue, in photoexcitation.

Radical photoinitiators with breakage of Link work according to the following reaction:

Y \ xrightarrow {\ textstyle {light}} {} Y * \ xrightarrow {\ textstyle {k2}} {} \ dot {R} _ {1} + \ dot {R} 2

K (2) is the velocity constant of the bond break reaction. Preferably, k (2) is greater of 10 6 s -1.

Initiating radicals with link breakage suitable can be selected from the following groups:

(a) alpha amino ketones, particularly those that they contain a benzoyl fraction, also called alpha amino acetophenones, for example 2-methyl 1- [4-phenyl] -2-morpholino-propan-1-one (trademark, Irgacure 907), (2-benzyl-2-dimethyl amino-1- (4-morpholinophenyl) -butan-1-one (trademark, Irgacure 369).

(b) alphahydroxy ketones, in particular alpha hydroxy acetophenones, for example (1- [4- (2-Hydroxyethoxy) -phenyl] -2-hydroxy-2-methyl-1-propan-1-one) (brand commercial, Irgacure 2959), 1-hydroxy-cyclohexyl-phenyl-ketone (trademark, Irgacure 184).

(c) phosphorus-containing photoinitiators, which include oxides and sulfides of monoacrylic and bisacil phosphine, for example oxide of 2-4-6- (trimethylbenzoyl) diphenyl phosphine oxide bis (2,4,6-trimethylbenzoyl) -phenyl phosphine (trademark, Irgacure 819).

(d) dialkoxy acetophenones

(e) alpha haloacetophenones

(f) trisacil phosphine oxides

Suitable radical photoinitiators are disclosed in WO9607662 (trisacil phosphine oxides), the US5399782 (phosphine sulfides), US5410060, EP-A-57474, EP-A-73413 (phosphine oxides), the EP-A-088050 documents, EP-A-0117233, EP-A-0138754, EP-A-0446175 and US4559371.

Suitable photoinitiators are revealed by example in document EP-A-0003002 on behalf of Ciba Geigy, the document EP-A-0446175 in the name of Ciba Geigy, GB2259704 in the name of Ciba Geigy (alkyl oxides bisacil phosphine), US4792632 (bisacil oxides phosphine), US5554663 in the name of Ciba Geigy (alpha amino acetophenones) and US5767169 (alkoxyphenyl oxides substituted on bisacil phosphine).

Radical photoinitiators are all analyzed in A.F. Cunningham, V. Desorby, K. Dietliker, R. Husler and D. G. Leppard, Chemia 48 (1994) 423-426.

Without wishing to be bound by theory, it prefers that all radical photoinitiators react to through its excited triplet states, to reduce the influence of the blocking effect.

Radical photoinitiators suffer adequately the reactions set forth above when excited by radiation included in the range of 290-800 nm. For example, the natural light of the sun, which understand the light in this region, it will be adequate to cause the radical photoinitiators suffer the reactions above described. Preferably, the radical photoinitiator has a maximum extinction coefficient in the ultraviolet range (290-400 nm) which is greater than 100 mol <-1> lcm <-1>. Suitably, the radical photoinitiator is a solid or a liquid at room temperature.

Suitably, the radical photoinitiator is without substantially color and gives some non-colored photo products to suffer one of the reactions outlined above.

Preferably, the compositions comprise sensors such as thioxanthones, for example as described in EP-A-0088050 documents, EP-A-0138754.

Preferred radical photoinitiator systems

The present inventors have discovered that radical photoinitiators that have a specific hydrophobicity, measured by the value of their log P, they have a preferred effect on particular. All materials to remove stains have also a tendency to attack the dye. The systems of radical preferred photoinitiator have a beneficial balance particularly between stain removal and the tendency To attack the dye.

Radical photoinitiators have a value of log P high, preferably, where the value of log P is the Octanol partition coefficient in water. It is preferred that radical photoinitiators have a logP measured at 25 ° C above 2.5 and more preferably above 4.0.

Tissue care compositions

The present invention is suitable for use in industrial or household fabric washing compositions, tissue conditioning compositions and compositions for both washing as for tissue conditioning (also called conditioning compositions for washing). The present invention can also be applied to compositions for the care of fabrics not based on industrial or household detergents, for example aerosol compositions.

Compositions for washing fabrics

The compositions for washing fabrics according to present invention may be in any suitable form, by example powder, tablet powders, detergent tablets solid or liquid

The compositions for washing fabrics according to present invention comprise a detergent material for washing tissues selected from anionic non-soap surfactants, nonionic surfactants, soap, amphoteric surfactants, bipolar surfactants and mixtures thereof.

Suitable anionic surfactants are fine. known to the person skilled in the art and include sulfonate of alkyl benzene, primary and secondary alkyl sulfates, in particular primary alkyl sulfates C 8 -C 15; alkyl ether sulfates; olefin sulfonates; alkyl xylene sulfonates; sulfosuccinates of alkyl; ether carboxylates; isothionates; sarcosinates; sulfonates of fatty acid esters and mixtures thereof. Be they generally prefer sodium salts.

Nonionic surfactants are also good. known to the person skilled in the art and include alcohols primary and secondary ethoxylates, especially alcohols C 8 -C 20 aliphatic ethoxylates with a average of 1 to 20 moles of ethylene oxide per mole of alcohol, and more especially primary and secondary aliphatic alcohols C_ {10} -C_ {15} ethoxylates with an average of 1 to 10 moles of ethylene oxide per mole of alcohol. Surfactants Nonionic non-ethoxylated include alkyl polyglycosides, monoethers of glycerol and poly hydroxyamides (glucamide). Mixtures can be used of nonionic surfactants.

Detergent compositions suitable for use in domestic or industrial automatic fabric washers contain in general surfactant without anionic soap or non-surfactant ionic, or combinations of the two in an appropriate proportion, such as It will be known by experts in the field, optionally together with soap.

Many suitable active detergent compounds are available and fully described in the bibliography, by example in "Surface-Active Agents and Detergents ", Volumes I and II, by Schwartz, Perry & Berch

Anionic surfactant is present. suitably at a level between 0.5% by weight to 50% by weight, preferably 10% by weight-40% by weight based on The composition for tissue treatment. The surfactant does not ionic is properly present at a level of 1-20% by weight, preferably 5-15% in weigh.

The total amount of surfactant present It will depend on the end use sought and can be as high as 60% in weight for example in a fabric washing composition a hand. In compositions for machine washing of fabrics, it is an amount of between 5 to 40% by weight is generally appropriate.

Detergency adjuvants

The detergent compositions of the invention they will also generally contain one or more detergency builders. The total amount of the detergency adjuvant in the compositions will be adjusted in the range between 5 to 50% by weight, preferably between 10 to 60% by weight.

Inorganic adjuvants that may be present include sodium carbonate, if desired in combination with a crystallization point for calcium carbonate, as disclosed in GB1437950 (Unilever); aluminosilicates crystalline and amorphous, for example zeolites as disclosed in the GB1473202 (Henkel) and crystalline / amorphous aluminosilicates mixed as disclosed in GB1470250 (Procter &Gamble); and laminated silicates as disclosed in the document EP164514B (Hoeschst). Inorganic phosphate adjuvants, by example, sodium orthophosphate, pyrophosphate and tripolyphosphate are also suitable for use with this invention.

The detergent compositions of the invention preferably contain a metal aluminosilicate adjuvant alkaline, preferably sodium. Sodium aluminosilicates they can be incorporated in general in amounts of 10 to 70% by weight (anhydrous base), preferably 25 to 50% by weight.

The alkali metal aluminosilicate can be both alkaline and amorphous or mixtures thereof, which have the General Formula:

0.8-1.5 \ Na2O \ cdot Al_ {2} O_ {3} \ cdot 0.8-6 \ SiO_ {2}

These materials contain retained water and are require to have a calcium ion exchange capacity of at least 50 mg CaO / g. Preferred sodium aluminosilicates they contain 1.5-3.5 units of SiO2 (in the previous formula). Both amorphous and crystalline materials they can be prepared quickly by reaction between sodium silicate and sodium aluminate, as widely described in the bibliography.

Exchange detergency adjuvants Suitable crystalline sodium aluminosilicate ionic se described, for example, in GB1429143 (Procter & Gamble). Preferred sodium aluminosilicates of this type commercially available are well known, zeolites A and X, and mixtures thereof.

The zeolite may be commercially available as zeolite 4A widely used now in detergent powders for laundry. The zeolite adjuvant incorporated into the compositions of the invention may be maximum aluminum P zeolite (MAP zeolite) as described and claimed in EP384070A (Unilever). The zeolite MAP is defined as an alkali metal aluminosilicate of the zeolite P type that has a ratio of silicon to aluminum not exceeding 1.33, preferably within the range of 0.90 to 1.33, and more preferably within the range of 0.90 to 1.20.

MAP zeolite that has a proportion of silicon to aluminum not exceeding 1.07 is especially preferred, more preferably about 1.00. The ability to fix calcium of zeolite MAP is generally at least 150mg CaO per gram of anhydrous material

Organic adjuvants that may be present include polycarboxylate polymers such as polyacrylates, acrylic / maleic copolymers and acrylic phosphinates; monomeric polycarboxylates such as citrates, gluconates, Oxydisuccinates, glycerol mono-, di- and trisuccinates, carboxymethylosuccinates, carboxymethylximalonates, dipicolinates, hydroxyethyliminodiacetates, alkyl- and alkenylmalonates and succinates; and salts of sulfonated fatty acids. This list does not Try to be thorough.

Especially preferred organic adjuvants they are citrates, suitable used in amounts of 5 to 30% by weight, preferably from 10 to 25% by weight; and acrylic polymers, more especially acrylic / maleic copolymers, properly used in amounts of 0.5 to 15% by weight, preferably 1 to 10% in weight.

Adjuvants, both inorganic and organic, they are preferably in the form of alkali metal salts, in Special sodium salt.

Whitening components

The detergent compositions according to the invention they can also properly contain for example a system peroxy bleach, inorganic persalts or organic peroxyacids, capable of producing hydrogen peroxide in aqueous solution.

Suitable peroxy bleaching compounds include organic peroxides such as urea peroxide, and persales inorganic such as alkali metal perborates, percarbonates, perfosphates, persilicates and persulfates. Inorganic persales Preferred are sodium perborate monohydrate and tetrahydrate, and sodium percarbonate.

Especially preferred is sodium percarbonate which has a protective coating against destabilization by humidity. Sodium percarbonate that has a protective coating which comprises sodium metaborate and sodium silicate is disclosed in the document GB2123044B (Kao).

The compositions may further comprise a photo whitener system as described, for example, in the EP-A-0035470.

Fabric softening composition

The tissue treatment composition of the present invention may be a composition that conditions tissues or may comprise the tissue conditioner.

Fabric softening compound

The fabric softening compound is preferably a compound to soften cationic tissues not ionic or anionic.

The fabric softening compound can be a quaternary ammonium material comprising a head group polar and one or two alkyl or alkenyl chains. The compound for fabric softening can also be a compound to soften non-ionic tissues such as an oil to soften tissues, a silicone composition to soften tissues or an ester composition to soften tissues such as sugar esters.

Preferably in particular, the compound for fabric softening has two chains, long alkyl chain or alkenyl with an average chain length greater than C 14, more preferably each chain has an average length of chain greater than C 14, more preferably at least 50% of each long chain of alkyl or alkenyl group has a length of C_ {18} chain.

It is preferred that the long chain groups alkyl or alkenyl of the fabric softening compounds predominantly linear

It is more preferred if the softening compounds fabrics are substantially insoluble in water. The compounds for softening substantially water insoluble fabrics in the context of this invention as the softening compounds tissues that have a solubility of less than 1x10 -3% by weight in demineralized water at 20 ° C, preferably the compounds for Soften tissues have a solubility of less than 1x10 -4, plus preferably the fabric softening compounds have a solubility at 20 ° C in demineralized water of 1x10 -3 at 1x10 -6.

The well-known species of components of water-insoluble quaternary ammonium have the formula:

one

in which R 1 and R 2 they represent hydrocarbyl groups that have 12 to 24 atoms of carbon; R 3 and R 4 represent hydrocarbyl groups that they contain 1 to 4 carbon atoms; X is an anion, preferably selected from the halide, methyl sulfate and ethyl sulfate groups What are the preferred.

Representative examples of these softeners Quaternaries include di (tallow alkyl) dimethyl ammonium methyl sulfate; dihexadecyl dimethyl ammonium chloride; chloride di (hydrogenated tallow alkyl) dimethyl ammonium; chloride dioctadecyl dimethyl ammonium; di (hydrogenated alkyl tallow) dimethyl ammonium methyl sulfate; dihexadecyl diethyl ammonium chloride; di (coco alkyl) dimethyl ammonium chloride, disebo chloride alkyl dimethyl ammonium and di (hydrogenated tallow) chloride alkyl) dimethyl ammonium (Trademark Arquad 2HT).

Other preferred softeners contain joints esters or amide, for example those available under the names Accosoft 580, Varisoft 222 and Stepantex.

Compounds to soften preferred tissues in particular they are insoluble quaternary ammonium materials in water comprising a compound having two alkyl groups or C 12-18 alkenyl connected to the molecule by at least one ester bond. It is more preferred if the ammonium material Quaternary has two ester bonds present. The material of quaternary ammonium bound to the preferred ester for use in the Invention can be represented by the formula:

\melm{\delm{\para}{(CH _{2} ) _{n} -T-R _{2} }}{N}{\uelm{\para}{R ^{1} }}

^{+} --- (CH_{2})_{n}-T-R^{2}

\hskip3cm

X^{-}R2 ---

 \ melm {\ delm {\ para} {(CH2) _ {n} -TR2}} {N} {\ uelm {\ para} {R1}}} 

<+> --- (CH2) n -TR2

 \ hskip3cm 

X -

\uelm{C}{\uelm{\dpara}{O}}

--- O o ---

\uelm{O}{\uelm{\dpara}{O}}

--- C --- ; X^{-}es cualquier anión adecuado y n es un número entero entre 0-5. El cloruro de di(etil éster) dimetil amonio (DEEDMAC) es preferido en particular.wherein each R 1 group is independently selected from C 1-4 alkyl, hydroxyalkyl or C 2-4 alkenyl groups; and wherein each R2 group is independently selected from C8-28 alkyl or alkenyl groups; T is ---

 \ uelm {C} {\ uelm {\ dpara} {O}} 

--- Or or ---

 \ uelm {O} {\ uelm {\ dpara} {O}} 

--- C --- ; X - is any suitable anion and n is an integer between 0-5. Di (ethyl ester) dimethyl ammonium chloride (DEEDMAC) is particularly preferred.

A second type of quaternary ammonium material Preferred may be represented by the formula:

\melm{\delm{\para}{CH _{2} OOCR _{2} }}{C}{\uelm{\para}{OOCR ^{2} }}

H

\hskip3cm

X^{-}(R 1) 3 N + --- (CH 2) n ---

 \ melm {\ delm {\ para} {CH2OOCR2}} {C} {\ uelm {\ para} {OOCR2}}} 

H

 \ hskip3cm 

X -

in which R_ {1}, n, X <-> and R2 are as defined previously.

It is advantageous for environmental reasons that the Quaternary ammonium material is biologically degradable.

Preferred materials of this class, such as 1.2 bis chloride [hardened tallow oyloxy] -3-trimethyl ammonium propane and its preparation procedures are, for example, described in US4137180 (Lever Brothers). These materials comprise preferably small amounts of the corresponding monoester as described in US 4137180 for example chloride 1-tallow hardened-oyloxy-2-hydroxy Propane trimethylammonium.

The tissue conditioning agent can be also a quat polyester (PEQ) as described in the document EP0638639 (Akzo).

Other ingredients

The compositions of the invention may also contain one or more optional ingredients, selected between pH buffering agents, perfume vehicles, fluorescent, dyes, hydrotropes, antifoaming agents, anti-redeposition agents, enzymes, brightening agents optical, opacifying, anti-dry agents, anti-wrinkle agents, anti-brand agents, germicides, fungicides, anti-corrosion agents, drape agents, antistatic agents and helpers for iron.

The present invention may be in the form of a diluted or concentrated aqueous solution or suspension, for example as It is described in WO97 / 15651, WO95 / 27769. Alternatively, the fabric conditioning composition may be in the form of a powder to use in the rinse cycle of a Automatic washing-machine. Alternatively, the composition tissue conditioner may be in the form of a sheet that comprises the compositions for use in a rotary dryer, by example as described in the document WO95 / 27777.Alternatively, the conditioning composition of tissues may be in the form of a non-aqueous concentrate substantially as described in the patent application International No. PCT / EP99 / 00497.

The detergent compositions for washing fabrics according to the present invention may further include directly the conditioning material for washing, such as a cationic tissue conditioner.

Tissue care products not based on detergents

The present invention can also be used in fabric care products not based on detergents. By For example, the product may comprise the disposal system of Stains as the main ingredient. For example, the non-detergent based compositions may comprise solutions of the stain removal system of the present invention in a suitable solvent, such as isopropanol, alcohol, etc. The compositions may comprise atomizer compositions or aerosol. They can be in the form of bars, pills, compositions for touches, for example absorbed in sponges to apply on the surface, etc.

The present invention will be further described. by example only with reference to examples following.

Examples

All quantities are in percentage or parts by weight unless otherwise indicated.

The following radical initiators are used in The present examples. They are commercially available under trademarks set forth below by Ciba Specialty Chemicals

Irgacure 369 - 1- [4- (2-hydroxy ethoxy) -phenyl] -2-hydroxy-2-methyl-1-propan-1-one (log P = 2.9, measured at 25 ° C).

Irgacure 819 - bis oxide (2, 4, 6-trimethyl benzoyl) -phenyl phosphine (log P = 5.8, measured at 25 ° C).

Irgacure 2959 - (1- [4- (2-Hydroxyethoxy) -phenyl] -2-hydroxy-2-methyl-1-propan-1-one (log P = 0.84, measured at 25 ° C).

Example 1

Very stained tissues with stains set out in table 1 were obtained from a supplier commercial (Equest, the spots took three days when sealed). The stained tissues were then treated with ethanol solutions containing several radical photoinitiators and were placed in a WOM Atlas S3000 Climatometer (trademark) for 12 minutes (at a power level of 0.35 w / m2 at 340 nm). The results in the change of reflectance at 460 nm (R (460 nm)) measured using a Spectraflash SF60 reflectometer (trademark) are shown in table 4.

The following regimes of treatment:

Treatment 1 - no immersion

Treatment 2 - place the stained tissue in ethanol, remove and dry, located in a Climatometer for 12 minutes, moistened with water.

Treatment 3 - place in the ethanol it contains 0.20% by weight of Irgacure 2959 (trademark), remove and dry, place in WOM, moistened with water, for 12 minutes.

Treatment 4 - place in the ethanol it contains 0.20% by weight of Irgacure 819 (trademark), remove and dry, place in a Climatometer for 12 minutes.

The results are shown in Table 1.

       \ vskip1.000000 \ baselineskip
    

TABLE 1

2

In general, radical initiators lead to an increase in reflectance at 460 nm of a variety of spots That is, radical initiators effectively bleach tissue stains.

Example 2

The procedure of example 1 was repeated, using treatments 1, 2 and 4 except that the magnitude of Irgature 819 (trade mark) in ethanol. The results are showed in table 2.

       \ vskip1.000000 \ baselineskip
    

TABLE 2

3

The results show that the bleaching of spots can be obtained at very low weight levels in the tissue of radical photoinitiator

Example 3

The following experiment was carried out to compare the effect of different radical initiator systems on stains and dye. A variety of stained cotton clothes are acquired from Equest as before. The ones were isolated photoinitiators at various tissue weight levels (ept) in the stained clothes of ethanol. The ethanol was then evaporated, the tissues they were moistened with demineralized water and placed in a Atlas S3000 air conditioner (commercial brand) for 12 minutes of irradiation (power = 0.35 w / m2 at 340 nm). The reflectance to 460 nm was measured for stained clothes and for a piece of tissue unstained to give ΔE values. The values are compared with a control in which the spots had followed the same treatment, except that the ethanol did not contain initiator radical. It is seen, as in example 1, that the initiators were particularly good whitening curry, Bolognese, β-carotene and chili. Tables 3 and 4 show the average reduction in ΔE in the control for these four spots for Irgacure 2959 and 819 (trademark) to several tissue weight levels.

To calculate how they harm unfavorably the initiators the dyes, the experiments were repeated above except Veebee printed fabric The of Arrogate England, which was used instead of stained fabric. In this case, the ΔE values represent the damage of the dye. 16 were tested different dyes and the average dye damage measure is give in tables 3 and 4.

The dyes were as follows:

4

The measurement of stains that is removed is divided in measuring the damage to the dye to give a value benefit / harm that is a measure of how the initiator to stains than to dye. It can be seen that Irgacure 819 (trademark) that has a log P over 2.5 is much more specific against stains that Irgacure 2959 (trademark) which has a log P below 2.5. This is true in particular to low levels (0-0.02% ept), where Irgacure 819 (trademark) gives great benefits when bleaching stains but very small damage to the dye.

TABLE 3

5

TABLE 4

6

It should be noted that where the experiments using dry cloth much less damage was observed in the dye. However, bleaching of the spots is also reduced.

Examples 4 and 5

The following base powder was prepared:

sulfonate of linear sodium benzene alkyl (LAS) - 23.60%

tripolyphosphate sodium - 19.22%

sodium silicate - 4.81%

sodium sulfate - 28.59%

calcite - 10.30%

products secondary - 1.08%

Water - 12.49%

In Example 4, 1 gram of this base powder is mixed closely with 0.024 g of Irgacure 819. The final product Contains 2.3% by weight of Irgacure 819. In Example 5, 1 gram of base powder was mixed closely with 0.024 g of Irgacure 369. The final product also contains 2.3% by weight of Irgacure 369.

In each example, the mixture of base powder and Radical photoinitiator was dissolved in 400 grams of water at 40 ° C. Be They prepared three batches of cotton clothes. Each contained tissue to make sheets that weighed 16.1 grams in total and combed cotton which weighed 10 grams in total. All the clothes were white. For each lot, both types of clothes were cut into four pieces. The lots are then washed in the prepared solution for about 5 minutes. A piece of cotton to make sheets and a piece of combed cotton They were removed and dried. The washing solution was discarded and the cotton it was rinsed in 600 grams of cold water. A piece of cotton for make sheets and combed cotton were removed and dried. The first rinse solution was discarded. It took a second Rinse afterwards with 600 grams of water. Again, a piece of cotton to make sheets and a piece of combed cotton is They took out.

The pieces of cotton to make sheets and combed cotton that were taken out at each stage were analyzed to see how much initiator had been deposited in the tissue. This was measured measuring the reflectance of dry clothes at 320 nm using a Spectraflash SF60 reflectance spectrometer (trademark). The following results were obtained:

TABLE 5 Linens

7

TABLE 6 Combed cotton

8

In all cases, the reflectance of the clothes washed with powder compositions containing the initiator radical is less than the control composition that does not contain radical initiator This is because the radical initiator of Irgacure absorbs more strongly at 320 nm reducing reflectance. Changes in the reflectance measure were considerable in the interference level of this type of measurements and confirm the deposit of the initiators.

Examples 4 and 5 demonstrate that radical photoinitiators of a laundry composition could deposit in the tissue.

Example 6

The following formulation of rinse conditioner:

HEQ 1 - 4%

Fragrance - 0.3%

Irgacure 819 (trademark) - 0.66%

Water - up 100%

1 HEQ = 1.2 bis [ tallow hardenedyloxy] -3-trimethylammonium propanochloride, from Hoechst.

3 grams of this rinse conditioner will dissolved in 600 grams of cold water. 18 grams of cotton for make sheets were placed in it for 5 minutes. At the end of this time, the cotton was removed and dried. The reflectance spectrum of cotton to make sheets was studied at 320 nm using a Spectraflash SF60 reflectometer (trade mark).

It was calculated for the reflectance results that approximately 0.003% of the photoinitiator had been issued radical (based on tissue weight).

Example 7

The following experiment was done to analyze the pH effect on the effects of radical photoinitiators.

The procedure of Example 6 was repeated except that Irgacure 819 (trademark) was isolated from ethanol in tissues stained at 0.1% by weight of tissues. For each stain, they were taken samples separately and then moistened with a solution variable pH buffer. The resulting tissues were irradiated during 12 minutes in the Atlas S3000 Climatometer (commercial brand). The average variation of reflectance at 460 nm after Treatment is shown in the table. The average reflectance at 460 nm for the four treatments was 46.5. You can see that the radical initiators give an improvement in reflectance in a wide pH range

TABLE 7

9

Example 8

The experiments of example 3 were repeated, using Lucerin TPO-L (oxide 2, 4, 6-trimethylbenzoylethoxyphenylphosphine, from BASF) and, for separate Irgacure 184 (1-hydroxy-cyclohexyl-phenyl-ketone of Ciba) at 0.02 and 0.2% ept. The results are shown in table 8 from below:

TABLE 8

eleven

Example 9

White stained polyester clothing (Veebee Tech) it was treated with initiators as in the previous examples and a Good cleaning effect, on the control. A small damage was seen in Dyed polyester clothes.

Example 10

Fatty tomato stains were produced smearing a tomato paste (Traditional Ragú food recipe Van den Bergh, ingredients: tomatoes, sunflower oil, onion, salt, sugar, dextrose, garlic powder, basil, parsley, extract spice, citric acid, CaCl2) in cotton to make sheets and They were left on the air for 1 day. The stained clothes were washed in a linitest under the following conditions: each jar contained 12 g of clothes, (of which 6 g were stained), 240 ml of water, 0.34 g of borax, 1.44 g of liquid detergent. At 40 degrees C, 20 minutes, and without rinsing. The clothes were dried in the rotary dryer, then they were placed in a WOM for 6 minutes.

Detergent liquids of Coco5E0 (a non-ionic surfactant - from Clariant), SDS (sodium dodecyl sulfate - an anionic surfactant), CTAC (cetyl chloride trimethyl ammonium - a cationic surfactant), Arquad 2HT (a cationic surfactant - from Akzo Nobel), with 0.1% Lucerin TPO-L and 10% ethanol by weight of the formulation; he rest was water. The amount of surfactant in each formulation is give in the table:

12

The results are shown below, in all the cases the samples containing the initiator give values of Δ lower (remove stains better) than the control.

13

Example 11

Formulation L1 of example 10 was made using Irgacure 819 instead of TPO-L. They got good benefits of stain removal versus control.

Example 12

A detergent composition was produced that contained 15.3% of an anionic surfactant, 10% ethanol, 0.1% of Lucerin TPO-L, the rest water. Surfactants anionic were LAS, and SDS.

They were analyzed using the wash protocol of example 10, both showed a large increase in profit in the irradiation when removing stains, compared to a control only of water. This indicated that the initiator was effective from washing. The benefits for a stain of β-carotene and pepper from Spain.

Example 13

Liquid Persil was purchased in Ireland and added to the product 0.01% by weight of Lucerin TPO-L. At washing, rinsing and irradiation of stained clothing with β-carotene, it was seen that the spots much more if the initiator was present.

Example 14

The initiators, benzoin, dimethoxyphenylacetophenone, methyl benzoin ether, and ethyl ether of Benzoin (from Aldrich) were applied separately from ethanol to cotton fabric stained with β-carotene. Be bleached all the spots. As expected the initiators with higher log P values did less damage to the dye.

Claims (12)

1. A tissue care composition, comprising a radical photoinitiator with link breakage. 2. The composition of claim 1, being a composition for conditioning tissues, comprising the composition plus fabric conditioner. 3. The composition of claim 2, being a conditioner to rinse. 4. The composition of claim 1, being a composition for washing fabrics, the composition comprising also laundry detergent. 5. The composition of claim 4, in the that the laundry detergent is selected from non-soap anionic, non-ionic, amphoteric surfactants and bipolar and mixtures thereof. 6. The composition of claims 4 or 5, which also comprises an adjuvant material. 7. The composition of any of the claims 1 to 6, wherein the radical photoinitiator is select from the group consisting of alpha amino ketones, preferably alpha-amino acetophenones, alpha-hydroxy ketones, preferably alpha-hydroxy acetophenones, oxides and sulfides of monoacrylic and bisacil phosphine, dialkoxy acetophenones, alphahalo acetyl fenones, trisacil phosphine oxides and mixtures thereof. 8. The composition of any claim precedent, in which the radical photoinitiator is excited by light substantially in the range 296-460 nm. 9. A procedure for the treatment of tissue care that involves treating the tissue with a radical photoinitiator with link breakage. 10. A method according to claim 9, in which tissue treatment takes place during a stage of tissue washing. 11. A method according to claim 10, in which the treatment takes place during a rinsing stage of tissues, in the presence of tissue conditioner. 12. Use of radical photoinitiators with broken link in a procedure for care treatment of tissues.