CN1133058A

CN1133058A - Laundry detergent composition

Info

Publication number: CN1133058A
Application number: CN 94193807
Authority: CN
Inventors: D·C·哈力威; P·阿斯平; A·J·哈里森
Original assignee: Cussons International Ltd
Current assignee: Cussons International Ltd
Priority date: 1993-08-27
Filing date: 1994-08-30
Publication date: 1996-10-09
Also published as: AU7504894A; WO1995006098A1; GB9317803D0; PL304790A1

Abstract

The present invention provides a laundry detergent composition comprising at least one surface active agent and a polyvinylpyrrolidone having a molecular weight greater than 1,000,000. The high molecular weight PVP is particularly effective for scavenging dye during washing and preventing its redeposition on other garments in the same wash load. An optional further component is a cellulase.

Description

The detergent composition of laundry

The present invention relates to the detergent composition that a kind of laundry is used, but also do not get rid of its use when home laundry.

A problem that can run into when laundry operations is that dyestuff may be dissolved into the washing water from dress, is attached to one or more on other clothes and cause and stain then.If black or dark clothes is washed together with the light color (for example white) or the clothes of mixture colors, it is very serious that this problem just becomes, and it can cause significantly stains.

Known polyvinylpyrrolidone (PVP) introduced in the composition of the washing composition of using the laundry that it will play dye transfer inhibitor.

Therefore for example, WO-A-921859 has advised a kind of cleaning composition with protection color characteristics, and it contains molecular weight 5,000-1, and 000,000, reasonable is 5,000-50,000, preferably 8,000-15, the polyvinylpyrrolidone between 000.It also contains tensio-active agent and alkali cellulose enzyme in addition.WO-A9218597 further discloses the detergent composition of laundry usefulness, and it contains molecular weight is 5,000-22,000 polyvinylpyrrolidone.Also contain cellulase in the said composition.

We are surprised to find now, in the detergent composition of laundry usefulness, use the polyvinylpyrrolidone in laundry operations used of molecular weight greater than previous suggestion, and it can cause improving the color safe energy.

Therefore according to the present invention, provide a kind of detergent composition of the usefulness of doing washing, it contains a kind of tensio-active agent and molecular weight at least greater than 1,000,000 polyvinylpyrrolidone.

The mensuration of the molecular weight of the polyvinylpyrrolidone of Cai Yonging is to adopt Senak etc. at Journal of Liguid Chromatogragraphy in the present invention, 10 (6), the method for the disclosed SEC/LALLS of 1127-1150 (1987) (size of particles row band chromatograph/low angle laser spectrum analyser).We find molecular-weight average greater than 1,000, and 000 PVP removed dyestuff and prevents that on the clothes that deposition of dye washs at the same time be effective especially in when washing.

The molecular weight of polyvinylpyrrolidone preferably is at least 1,200,000, more preferably is at least 1,500,000.The molecular weight of PVP for example can be 1,500,000 to 4,000,000.More preferably, the PVP molecular weight is 2,000,000 to 4,000,000, for example 2,400,000 to 3,400,000, and particularly preferred molecular weight is about 2,900,000.

The example of the adopted PVP of possibility comprises K-120 (molecular weight is 2,540,000 to 3,220,000) and K-90 (molecular weight is 1,270,000 to 1,710,000), and these two kinds of PVP can buy from Europe ISP.

The PVP content that the typical case exists in composition is that 0.01 to 2.0% (weight) (for example is 0.05 to 2.0% (weight).

In the present invention, except PVP, other basal component is tensio-active agent.Preferred surfactants is negatively charged ion and/or nonionic surface active agent.Yet also may adopt two property ions or two surfacants.

The preferred anionic surfactants surfactant is an anionic surfactant acid.Alkyl aryl sulphonic acid for example, lipid acid sulfonic acid, alkene sulfonic acid, aliphatic alcohol ester sulfuric acid, fatty methyl ester sulfonic acid and alkane sulfonic acid.Particularly preferred surfactant acid is to contain the alkyl group of 9-20 carbon atom and the alkyl aryl sulphonic acid or the alkylaryl sulfuric acid of sulfonic acid or sulfate group, and (comprising alkyl be moieties in the aromatic yl group) or by the alcohol that has 8-18 carbon atom chain is carried out the lipid acid sulfuric acid that sulfation obtains.Useful especially is linear alkyl benzene sulphonic acid, wherein the carbonatoms average out to 11 to 13 of alkyl.

The amount of anion surfactant between (for example 5% to 40%), preferably is selected in the low side of this scope preferably 1% to 4%.Therefore preferably 1% to 30% (weight), more preferably 5% to 25% (weight), for example 7% to 25% (weight) of the amount of anion surfactant.

Because nonionogenic tenside has good washing character, so it is also contained in this composition.Preferred nonionic is that HLB is lower than 13 water miscible fatty alcohol ethoxylate.Preferred nonionic is to contain C ₁₂-C ₁₈Straight chain primary alcohol, every mol of alcohol contains the 3-30 moles of ethylene oxide.

The amount of nonionogenic tenside is (for example 1% to 10%) (weight) preferably 1% to 15%.

Can adopt the blended tensio-active agent.

Very praise highly in the composition of washing composition and contain cellulase.Its effect when cotton fibre (pledge clothes and contain Mierocrystalline cellulose, for example) is to eliminate to produce microfibre on fiber.This has just prevented the clothes balling-up and has weakened luminous reflectanc.We find high molecular PVP used among the present invention, and (for example molecular weight is greater than 1,000,000) and cellulase have synergistic effect reducing on the reflection of light performance of fiber, and the protofibril that this reflection of light performance generates when being normal braiding by clothes causes.

The example of adoptable cellulase is those that enumerate in W0-A-9218589.In general, adopting the amount of cellulase is 0.05% to 4% (for example 1% to 4%) of composition weight.

The washing assistant that also contains 15% to 50% (weight) in the general composition.Preferred washing assistant is a phosphoric acid salt, particularly tripoly phosphate sodium STPP, orthophosphoric acid salt and pyrophosphate salt.The amount that can be included in the alkaline matter in the composition is for example 15% to 35%, and it plays a part on the performance useful in the laundry washing process.Preferred basic material is a yellow soda ash.

Following form has been listed in some specific example, other composition and the quantity that may exist in composition.

Component quantity example

Weighting agent 0-50% sodium sulfate

Anti redeposition agent 0.5-5% carboxymethyl cellulose

Resist 0-5% water glass

Sequestrant 0-5% EDTA

Spices＜1%

Optical brightener＜1%

The optional powdery of the form of detergent compound or granular according to the present invention.The specially suitable method of producing powdery or granular form is disclosed in EP-A-0353976 (Cussons).

Produce this composition for the program of using foregoing invention, in composition, need the blended solids to use fluidization process to mix earlier, then liquid is sprayed on the mixture.Caused the agglomeration of particle like this and formed from 2mm to particle less than the various size of 75um.

According to the present invention, the PVP amount that the preferred every liter of washings of typical composition uses is less than 100mgL ^-1, be more preferably less than 40mgL ^-1

According to the present invention, following Example is a kind of concrete combination.

Tripoly phosphate sodium STPP 40.000%

Light sodium carbonate 25.000%

Sodium sulfate 8.500%

Polyvinylpyrrolidone (K-120 is available from Europe ISP) 0.500%

Anti redeposition agent 2.500%

Nonionic (fatty alcohol ethoxylate) 4.000%

OBA 0.075％

Sequestrant 0.500%

Alkyl benzene sulphonate (ABS) 14.000%

Cellulase 0.500%

Spices and other batching 4.425%

The present invention is illustrated by following nonrestrictive examples

Example 1

Test three kinds of detergent composition, estimate them and postpone dyestuff soiled effect on cotton fibre.These groupization things below have been described in detail in detail.

Composition A (the present invention)

Tripoly phosphate sodium STPP 31% (weight)

Yellow soda ash 27% (weight)

Sodium sulfate 12.5%

Sodium bicarbonate 13%

Sodium carboxy methyl cellulose 4%

Alkyl benzene sulphonate (ABS) 8%

Polyvinylpyrrolidone (K-120 is available from ISP) 0.5%

Cellulase 0.7T (available from Novo) 0.35%

Spices, antifoam agent, EDTA 1.65%

The nonionogenic tenside 2% of ethoxylation

Composition B (contrast)

It is identical with composition A, but uses the PVPHP50 available from BASF to replace PVPK-120.According to manufacturer's instructions, the HP50 molecular weight is 40,000.

Composition C (contrast)

That buys on the market neither contains the also washing composition of cellulase not of PVP.

Program

The composition of enumerating more than the mensuration suppresses (Solophenyl Blue GL) dyestuff and goes up sedimentary effect at white cotton fabric (bleaching through flushing).By in JefferiesRotadyer rotation stainer, pressing the condition of following setting, in the presence of dyestuff, fabric is washed and realize this program.Adopt this program to be because use the dyestuff of known quantity to do experiment, its result is than being in the suds released dye and that other fabric is intersected the repeatability of the dyeing fabric that dyes is strong.

The amount composition A 7g/L that uses

Composition B 7g/L

Composition C 10g/L

Fiber is 1: 10 to the ratio of liquid

Test thread-100% white cotton fiber is through flushing and bleaching.

Water hardness-tap water (CaCO ₃Be 30ppm).

Washing time-in Jefferies rotation stainer, washed rinse-added and dry 1 hour altogether.(employing roller dryer) wash temperature-40 and 60 ℃.Dyestuff is 1: 1 and 0.5: 1 with the ratio of PVP.

The result

Measure Cielab L and b value (being brightness and Lan Du) with ICS/Texacon Micromatch MM2000 reflexometer.The results are shown in Table 1.

Table 1

The detergent washing temperature L value b value of dyestuff/PVP

Ratio

A 40℃ 1∶1 91.160 +0.096B 40℃ 1∶1 90.354 -1.118C 40℃ 1∶1 80.980 -11.716A 40℃ 0.5∶1 92.352 +1.368B 40℃ 0.5∶1 92.201 +1.119C 40℃ 0.5∶1 85.964 -6.719A 60℃ 1∶1 87.934 -4.148B 60℃ 1∶1 86.390 -5.558C 60℃ 1∶1 77.976 -14.413A 60℃ 0.5∶1 91.051 -0.412B 60℃ 0.5∶1 8*** -1.046C 60℃ 0.5∶1 83.150 -9.326

Explain

The high more expression fabric of L value-L value is white more.

B value-b value negative indication fabric more is blue more.

Result obviously expression composition of the present invention can provide than higher L value of other Comparative composition and lower b value.Show that composition that composition and those comparative group that the present invention takes to contain the PVP of higher molecular weight contain low-molecular-weight PVP compares in that to suppress dyestuff more effective aspect the deposition again.

Example 2

Test six kinds of detergent composition, determining molecular weight is greater than 1,000, and 000 PVP and cellulase are in the effect that reduces aspect the fabric reflective.Detergent composition is as follows:

Composition no

1 2 3 4 5 6

Sodium bicarbonate 30% 30% 30% 30% 30% 30%

Tripoly phosphate sodium STPP 30% 30% 30% 30% 30% 30%

Dodecylbenzene 10% 10% 10% 10% 10% 10%

Sulfonic acid

Sodium phosphate 30% 28.57% 29.3% 29.3% 27.87% 27.87%

Cellulase 0.7T-1.43%--1.43% 1.43%

PVP?HP50 - - 0.7％ - 0.7％ -

PVP?K-120 - - - 0.7％ - 0.7％

Test is carried out in the following manner, and the black cotton goods are washed in the washing composition that does not contain PVP and cellulase in advance.

Measure the L value of each fabric with ICS/Texacon Micromatch MM2000 type light-reflectance apparatus (after above-mentioned twice washing).

Then fabric is respectively washed in the composition of 1-6 10 times.Washing is carried out in Tergotometer, and wash temperature is 40 ℃, and agitator speed is 90rpm washing time 30min.Every kind of detergent composition usage quantity is 10gL ^-1, water hardness is CaCO ₃30ppm.

Survey the L value of each fabric after the washing again.Calculate the Δ L value of each fabric with following formula,

ΔL＝L ₂-L ₁

L ₂It is the L value of 10 washing back fabrics.

L ₁It is the L value of fabric before 10 washings.

The results are shown in table 2.

Positive Δ L value representation black fabric has shoaled, and promptly Δ L value is big more, and it is grey more that fabric becomes.Otherwise the negative value of Δ L is represented fabric and is become black more.Except the 6th kind of composition, positive Δ L value shows that the detergent composition that is numbered 1-5 has increased the gray scale of fabric, has only to be numbered 6 composition and to have obtained negative Δ L value, and it shows that reflectance has diminished.

These results show that significantly adopting PVP K-120 and cellulase 0.7T to combine can obtain synergistic effect.

Table 2 composition no L 1+0.916 2+0.236 3+0.116 4+0.246 5+0.276 6-0.659

Claims

1. the detergent composition of a laundry contains at least a tensio-active agent and molecular weight greater than 1,000,000 polyvinylpyrrolidone.

2. the composition of claim 1, wherein the molecular weight of polyvinylpyrrolidone is 1,200,000 at least.

3. the composition of claim 2, wherein the molecular weight of polyvinylpyrrolidone is 1,500,000 at least.

4. the composition of claim 3, wherein the molecular weight of polyvinylpyrrolidone is 1,500, and 000 to 4,000, between 000.

5. the composition of claim 4, wherein the molecular weight of polyvinylpyrrolidone is 2,400, and 000 to 3,400, between 000.

6. arbitrary composition of claim 1 to 5, wherein the content of polyvinyl pyridine alkane ketone in composition is 0.01% to 2.0% (weight).

7. arbitrary composition of claim 1 to 6, wherein tensio-active agent comprises a kind of anion surfactant.

8. the composition of claim 7, wherein anion surfactant is an alkyl aryl sulphonic acid.

9. the composition of claim 8, wherein anion surfactant is a linear alkyl benzene sulphonic acid, wherein the carbon atom mean number of alkyl is 11 to 13.

10. arbitrary composition of claim 7 to 9, wherein the content of anion surfactant is 1% to 40%.

11. arbitrary composition of claim 1 to 10, wherein tensio-active agent comprises a kind of nonionogenic tenside.

12. the composition of claim 11, wherein nonionogenic tenside is water-soluble fatty alcohol ethoxylate, and its HLB is lower than 13.

13. the composition of claim 11 or 12, wherein the content of nonionogenic tenside is 1% to 15% (weight).

14. arbitrary composition of claim 1 to 13 wherein contains cellulase.

15. the composition of claim 11, wherein the content of cellulase is 0.05% to 4% of composition weight.

16. the composition of claim 1 to 15 wherein comprises a kind of washing assistant.

17. the composition of claim 16, wherein the content of washing assistant is 15% to 50% (weight).

18. the composition of claim 16 or 17, wherein washing assistant is a tripoly phosphate sodium STPP.

19. arbitrary composition of claim 1 to 18 wherein contains alkaline matter.

20. the composition of claim 19, alkaline matter wherein is a yellow soda ash.

21. be Powdered or granular arbitrary composition in the claim 1 to 20.