JPS63110293A - Detergent composition - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to detergent compositions, particularly detergent compositions capable of forming improved soil suspensions.

Efficient cleaning of soiled textiles depends on at least two factors: removing the soil from the object and forming a soil suspension, i.e. not redepositing the suspended soil on the textile. Known in the art.

It has previously been proposed that soil suspension improving substances should be added to detergent compositions. US Patent No. 30008
No. 30 (Fong et al.) discloses adding polyvinylpyrrolidone to detergent compositions to improve soil suspension. U.S. Patent No. 3,318,106 (ColHat
e) discloses a detergent composition containing a detergent active and a soil suspending agent mixture of sodium-carboxymethylcellulose and polyvinylpyrrolidone.

The inventors have now discovered that a surprising improvement in soil suspensions is obtained when a mixture of polyvinylpyrrolidone and a nonionic material, as described below, is present in a detergent composition.

Thus, according to the invention there is provided a detergent composition consisting of an anionic detergent active and polyvinylpyrrolidone, characterized in that the composition further comprises a nonionic substance having an IILI of 10,5 or less or a mixture thereof. do.

As disclosed in the prior art, polyvinylpyrrolidone is not a single independent compound, but is obtained in almost all degrees of polymerization. The degree of polymerization is most simply calculated as the average molecular weight. Generally, suitable soil suspending polyvinylpyrrolidone polymers are water soluble to at least 0.001% to 0.1%. Suitable polymers have a linear structure, from about 5,000 to about 100,000, preferably from about 15,000 to about 100,000
It has an average molecular weight in the range of about 50,000.

The level of polyvinylpyrrolidone in the detergent composition is preferably from 0.1 to 1% by weight, most preferably about 0.3%.
~0.5% by weight.

The composition includes a nonionic material having an IILIII of 10.5 or less, preferably in the range of 6 to 10, most preferably 8 to 9.5. The composition may further include a mixture of one or more nonionic materials. If the average +1LII of a mixture of nonionic substances is less than or equal to 10.5, then the mixture is
The IIL13 scale is a known measure of hydrophilic-lipophilic equilibrium in any compound.
nicSurfactants” Volume I. HL of mixtures of nonionic substances.
A method for determining B is also specified in this document.

Nonionic materials with lower It L B values are less hydrophilic than nonionic materials with higher HLB values.

Suitable nonionic compounds which can be used are in particular reactants of compounds with hydrophobic groups and reactive hydrogen atoms, such as aliphatic alcohols, acids, amides or alkylphenols and alkylene oxides, especially propylene oxide alone or in addition to ethylene oxide. Contains reactants with. Specific nonionic compounds generally include alkyl (
Cs-Cz□) phenol-ethylene oxide condensate,
Formed by condensation of aliphatic (C8-Cps) primary or secondary linear or branched alcohols with up to 40 EO of ethylene oxide, and by condensation of ethylene oxide with the reaction product of propylene oxide and ethylene diamine. It is a product that Other nonionic substances include long chain tertiary phosphine oxyto, dialkyl sulfoxide, C, -C2, fatty acids, C, -C2, fatty acids and
These include esters with m alcohols containing 3 carbon atoms, as well as C3°-CII+fatty alcohols.

Suitable non-ionic substances are alkoxyl adducts of aliphatic compounds selected from fatty alcohols, fatty acids, fatty esters, fatty amides and fatty amines. Aliphatic compounds contain at least 10 carbon atoms, and nonionic substances contain an average of less than 8 alkylene oxide groups in the molecule.

The alkylene oxide adducts of fatty alcohols useful in the present invention preferably have the following general formula:

R'0-0-(C,,lI2.0),H where RIo is at least 10 carbon atoms, most preferably 10-2
an alkyl or alkenyl group having 2 carbon atoms, y
is preferably less than or equal to X, for example from about 0.5 to about 3.5, and n is 2 or 3. Examples of such materials include molecular light and Cl3-C, which has about 3 ethylene oxide groups.
5yn-peronicΔ3 (I
C[), and lauryl alcohol 3EO, Empi
There are lan KB3 (Marchon), etc.

The alkylene oxide adducts of fatty acids useful in the present invention preferably have the following general formula:

R1'-C-0-(C,,,II□110), 1
1 where 110, n and y are as above. A preferred example is ESONAL 0334 (Dia
mondSbamrock).

Alkylene oxide adducts of fatty esters useful in this invention include adducts of mono-, di- or tri-esters of polyhydric alcohols containing 1 to 4 carbon atoms, such as coconut oil or tallow oil (triglycerides) 3EO (Stear
ine Dubois).

The fatty amide alkylene oxide adducts 1~ useful in the present invention preferably have the following general formula.

where RIG is an alkyl or alkenyl group having at least 10 carbon atoms, most preferably 10 to 22 carbon atoms, n is 2 or 3, and X and 2 are a total of 4
．． 0 or less, preferably from about 0.5 to about 3.5, with the proviso that one of X and Z may be zero. Examples of such materials include tallow monoethanolamide and jetanolamide and corresponding coconut and soybean compounds.

The alkylene oxide adducts of fatty amines useful in the present invention preferably have the following general formula:

Here, 110 and n are as described above, and x and 2 are preferably 4.0 or less in total, most preferably about 0.5 to 2.
It is about 3.5. Examples of such substances include lEt
bomeen T12 (tallow amine 2EO commercially available from YaKZO), Optameen PC5 (coconut alkylamine 5EO) and Crodametl, 0
2 (Oleylamine 2EO, commercially available from Croda Chemicals), and the like.

The total level of polyvinylpyrrolidone and non-ionic materials in the detergent composition is preferably about 0.1% by weight of the composition.
The range is from about 5% by weight, most preferably from about 0.3% to about 3% by weight.

Improvements in soil suspensions are achieved at all mixing ratios of polyvinylpyrrolidone material and non-ionic monomer. Preferably, the weight ratio of polyvinylpyrrolidone to non-ionic material in the detergent composition is from about 8:2 to about 2:8, most preferably about 6
;4 to about 4:6.

Anionic detergent actives can be soaps or non-soap (synthetic) anionic materials. Anionic detergent actives 11 are commercially available and are described in the literature, eg 5chu+artz.

“5surfaceΔc” by Perry and Bercb
Live 8gentsand DeLergenLs
”, Volume I and ■.

The synthetic anionic detergent actives useful in this invention are water-soluble alkali metal salts of sulfates and sulfonates having alkyl groups containing from about 8 to about 22 carbon atoms, where the term alkyl refers to higher acyl. Includes the alkyl portion of the group. Examples of suitable synthetic anionic detergent compounds are sodium and potassium alkyl sulfates, in particular compounds obtained by sulfating higher (C,-C,,') alcohols prepared, for example, from tallow or coconut oil;
-C2°) Lithium and potassium benzenesulfonates, especially linear secondary alkyl CC,. -〇5. ) Sodium benzene sulfonate; sodium alkyl glyceryl ether sulfates, especially ethers of higher alcohols derived from tallow or coconut oil and synthetic alcohols derived from petroleum; coconut oil fat monoglyceride sulfates and sodium sulfonates; higher (C1C18) fatty alcohols Soot, lithium and potassium salts of sulfuric acid esters of reaction products with alkylene oxides, especially ethylene oxide; reaction products of fatty acids such as coconut oil fatty acids esterified with isethionic acid and neutralized with sodium hydroxide; Sodium and potassium salts of fatty acid amide of methyltaurine; Compounds derived by reacting α-olefin (Cs-Cz.) with sodium bisulfite and paraffins are reacted with S02 and Ch, and then hydrolyzed with a base. alkane monosulfonates, such as compounds derived by producing random sulfonate salts; fatty acid esters sulf 1; sodium and potassium salts of nates; water-soluble salts of dialkyl esters of sulfosuccinic acids; especially C+o-C2°α- Olefin sulfonate refers to a material formed by reacting an olefin, such as an olefin, with SOI, followed by neutralization and hydrolysis of the reaction product. Suitable anionic detergent compounds are (C+biC+s) sodium alkylbenzene sulfonate and (C+s-C+a) sodium alkyl sulfate.

Mixtures of anionic compounds may be used in detergent compositions.

Although certain amounts of amphoteric or dipolar detergent compounds can also be used in the compounds of the present invention, this is generally undesirable due to its relatively high cost. When amphoteric or dipolar detergent compounds are used, small amounts are usually present in the composition based on the more commonly used anionic detergent compounds.

Effective amounts of detergent active compounds used in the compositions generally range from 5 to 40%, preferably up to 30%, by weight of the composition.

The detergent compositions of the present invention may further contain from about 5 to about 90% detergent bilgoux, which can be inorganic and ruder or organic bilgoux.

When phosphorus-containing inorganic detergent builders are present, examples of such builders include water-soluble salts, especially alkali metal pyrophosphates, orthophosphates, polyphosphates and phosphonates. Specific examples of inorganic phosphates include l-lipolyphosphoric acid, phosphoric acid, and sodium and potassium hexametaphosphates.

Examples of non-phosphorus inorganic detergent builders, when present, include water-soluble alkali metal carbonates, bicarbonates, silicates and crystalline and amorphous aluminosilicates. Specific examples include sodium carbonate (with or without calcite seeds), potassium carbonate, bicarbonate and sulfur and potassium silicates.

Examples of organic detergent builders, when present, include alkali metal, ammonium and substituted ammonium polyacetyl-1, carboxylates, polycarboxylates, polyacetyl hydroxyl-1 and polyhydroxysulfone-1. There is. Specific examples include sodium, potassium, lithium, ammonium and ammonium salts of ethylenediaminetetoacetic acid, nitrilotriacetic acid, oxydisuccinic acid, meli-t-a, benzene polycarboxylic acid and citric acid with direct substituents.

The detergent composition of the present invention may further contain any of the conventional additives.
Such materials may be included in those commonly used in textile cleaning detergent compositions. Examples of these additives are foam booster oxygen-releasing bleaches such as sodium perborate and sodium percarbonate, peracid bleach precursors, chlorine-releasing bleaches,
fabric softeners, inorganic salts such as sodium sulfate, and additives that are generally present in very small quantities such as fluorescent agents, fragrances, fungicides, and colorants.

It is also desirable to include in the detergent compositions of the invention a certain amount of alkali metal silicates, especially sodium ortho, meta or preferably neutral or alkali silicates. Such alkali metal silicate accounts for at least about 1 part by weight of the composition.
%, preferably from about 3% to about 15%, is advantageous in reducing corrosion of metal parts within the washing machine, as well as providing processing benefits and - most improved powder properties. It is. Higher alkali ortho and metasilicates may be used in smaller amounts within this range and may be used in admixture with neutral or alkali silicates.

In order to provide powders with superior physical properties, it is generally desirable to include structural materials such as succinic acid and/or other dicarboxylic acids, sucrose, and polymers in the detergent compositions of the present invention.

The detergent compositions of the invention can be produced in the form of a powder, a liquid base I. having a viscosity of more than 1000+*Pas at a shear rate of 21 s-' or bar.

The detergent powder compositions of the present invention may be manufactured using conventional manufacturing methods commonly used or proposed in the manufacture of textile cleaning detergent powder compositions. The method consists of spray drying or spray cooling after slurry formation, followed by dry dosing of unstable ingredients that are not suitable for formulation prior to the drying or heating step. Other conventional methods such as noodling, granulation, mixing by fluidization in a fluidized bed may be used if desired. Such methods are well known to those skilled in the art of producing laundry detergent powder compositions.

In use, the detergent compositions of the invention are particularly suitable for cleaning synthetic textiles.

The invention will now be further illustrated by means of non-limiting examples.

and 11 A detergent composition having the composition shown below was prepared. The mixture of xylated nonionic materials used in this composition had an HLB value of 9.0.

In practice, the detergent composition was compared to detergent composition C containing a 1-xylated nonionic material having an IILII value of 11.8.

^ 13CD DOB113 9.0 9
．． 0 9.0 9.0Synperonic ^7
1.0 1.0 4.0 4.0Synpc
ronic ^3 3.03.0--
STP 23.0 2
3.0 23.0 23.0 Alkali silicate
6.0 6.0 6.0 6.0 Sodium sulfate
33.033.033.033.0 carbonic acid)・Lium 5.0 5. Q 5.0 5.0 Sodium metaborate 6.9 6.9 6.9 6.9S
okalau Il! ”50 0,5 0
Treatment baths of compositions Δ, B, c and D by dissolving polyvinylpyrrolidone in a liquid having 0.5 0 water residual residual residual 3 and equal to a dosage level of 5 g/l. was prepared.

Each of the compositions was used to clean a fabric mixture consisting of 5 pieces of clean cotton double-sided stockinette fabric, 5 pieces of clean bonded polyester fabric, and 5 pieces of soiled fabric. Each piece of cloth is 7.5cm
It was set to 7.5 cm. These experiments were carried out at 24°C at 40°C.
Performed in laboratory equipment in Fi+ water 11.

The cleaning process was repeated six times for each composition using the same cotton and polyester cloths and fresh soiled cloths.

After washing, the fabric was rinsed and then tumble dried.

[Micromatch equipped with an IV filter
mat-ch) using a reflectance spectrophotometer at 460n
The reflectance of the treated test fabric at m was determined. 460 nm for untreated polyester and cotton fabrics for comparison purposes.
The reflectance values were measured. The value of ΔR* is the difference in reflectance between the washed and untreated fabric. The value of N/S (K is the absorption coefficient and S is the scattering coefficient) of the treated polyester fabric was also determined. i K/S is proportional to the weight of colored substance present. The value of K/S is given by the relational expression /5-(1-R)2/2R(
R is the reflectance of the fabric at 460 nm for these examples.

According to the method described above, cotton and polyester fabrics were treated with detergent composition A, 13. along with the soiled test fabric. Washed with C and D.

The value of ΔR460' was determined and the average of the two sets of moisture values is shown below.

and 1 Takumi L Reflectance loss data of polyester cloth (-ΔR46Q*)
L and L± W l q Source 1 5.
1 4.2 3.0 1.82 4.8
3.8 4.3 1.93 5.2 3.7
5.9 2.14 6.4 3.6 7
．． 2 2.25 7.5 3', 8 8.6
2.76 8.7 3.6 9.9 2
．． 7 Example 2 Reflectance loss data of cotton cloth (-ΔR46°*)
D B Ri N1 2.4
2.8 2.1 3.42 2.8 2
．． 9 3.1 3.73 3.9 4.1
4.0 4.24 4.5 4.7 3.
9 4.75 5.0 5.0 4.7
' 5.28 5.1 5.2 5.1
5.5 As is clear from the results of Examples 1 and 2, detergent compositions containing ethoxylated nonionic substances with PvP and IILD of less than 10.5 have a significant effect on staining and turbidity of polyester fabrics. Gives amazing improvements.

A dry polyester cloth and a soiled test cloth were washed with detergent compositions B, B, C and D according to the method described above. The mean (Ii, co) of the 2Ml measurements was determined. These results were used to determine the difference between the detergent compositions in the absence of PVP and the detergent compositions in which PVP was present. /S ratio was determined.

Cleaning number of F marks D/, CII/△1
1.9 2.62 1.1
2.23 0.9 1.94
0.9 1.75 0.
9 15 6 0.9 As is clear from the results above 1.4, [)Vll and IIL less than 10.5
Does soil suspension occur when polyester fabrics are washed with detergent compositions containing ethoxylated nonionic substances with B? Significant improvements will be made.

Note: 1. DOBS 113 (Shell Chemica
ls) is a sodium alkylbenzenesulfonate in which the entire alkyl group contains 10 to 15 carbon atoms.

2,5ynperonic^7 (ICI) is an alcohol ethoxylated with an average of 7 ethylene oxide groups per molecule.

3,5ynperonic 83 (ICI) is an alcohol ethoxylated with an average of three ethylene oxide groups per molecule.

4,5okalan 1IP50 (BASF) is a vinylpyrrolidone polymer with an average molecular i 40000.

5. Regarding water hardness, "'FH'" used in the text is the molar concentration of free hard water ions X10-'.

6. STP is sodium tripolyphosphate.

Claims (8)

[Claims] (1) A detergent composition comprising an anionic detergent active and polyvinylpyrrolidone, further having an HL of 10.5 or less.
A detergent composition characterized in that it contains a nonionic substance having B or a mixture thereof. (2) The ratio of polyvinylpyrrolidone to nonionic substance is 8:
2. A detergent composition as claimed in claim 1 in the range of 2 to 2:8. (3) The molecular weight of polyvinylpyrrolidone is 15,000 to 5
The detergent composition according to claim 1, wherein the detergent composition is within the range of 0,000. (4) Level of polyvinylpyrrolidone is 0.3-0.5
A detergent composition according to claim 1, wherein the % by weight range is within the range of % by weight. (5) The detergent composition of claim 1, wherein the total level of polyvinylpyrrolidone and nonionic material is within the range of 0.1 to 5% by weight. (6) A detergent composition according to claim 1, wherein the level of anionic detergent active is within the range of 5 to 40% by weight. (7) the nonionic substance is an alkoxylate adduct of an aliphatic compound selected from fatty alcohols, fatty acids, fatty esters, fatty amines, and fatty amides and having at least 10 carbon atoms, the adduct being on average less than 8 per molecule; A detergent composition according to claim 1, containing an alkylene oxide group. (8) A method for removing soil from textiles and reducing redeposition of removed soils, said method comprising washing the textile with a detergent composition according to claim 1.