DE2335044A1 - LAUNDRY DETERGENT - Google Patents

Description

Munich, July 1, 1973 C 717 - D / sta

Unilever N.V., Burgemeester s'Jacobplein 1, Rotterdam, the Netherlands

laundry detergent

The invention relates to detergents which have particular Y / ert when washing polyamides containing textiles bsv /. Own tissues.

It is known that some, made of synthetic material Tissue in the removal of oil / fat stains raise special probes from their surface. Polyamides, for example those that go under the name "nylon" in Are commercial show this problem, which is treated below under the term "soil release".

Certain condensation products of dicarboxylic acids, polyoxy-th7lengl.7kolen and a cycloaliphatic lactam or aliphatic dianine or salts thereof with a dicarboxylic acid are described in GB-PS 1 124 271, to which reference is made here in full, and as Textilbehandlungsnittel recommended the salts of hexamethylene diamine un <l Adipihsäure in Molv & rhältnis. 1: 1 (hereinafter referred to as "IIylcn" salt

OH'TI'.H "!" HI AC. HAKkUIIC »» '19 K IS ruiclt.nit.ICl HAMlU (O 11/130 IfDCR (RPATtMT MOMCHZN BATH ORIGINAL

is an example of salts that can be used in these condensation products. It was found j that these polymers can be used \ Šiden in connection with certain Ten to particularly good Cchmutzab- | to achieve solution properties with Polyariic! materi? .lien. These condensation products are obtained by the straightforward reaction of (a) an aliphatic dicarboxylic acid, (b) a hydroxypolyoxyalkylene compound which contains at least one polyoxyalkylene chain which consists of a large number of directly linked oxyalkyl radicals, and (c) one of aliphatic or cycloaliphatic ^ amino acids or lactams, aliphatic or cycloaliphatic diamines or salts thereof with the dicarboxylic acid (a), and mixtures of these amino acids or lactams and these diamines or salts thereof, or by joint reaction of ester- or amide-forming derivatives of the reactants (a), (b) and (c).

When fabrics containing polyamides are washed in wash liquors containing the mixtures according to the invention, the fabrics are modified so that then on Oil / Pett soiling formed on the fabric can be removed more easily during subsequent washing. The invention represents Detergent powders and liquids are available, both for the formation of a washing liquor, as well as by separate Addition of the two components, which must be present together, in situ prepared wash liquor used.

The invention relates to '.Vaschmittelpulver or liquids containing from about 0.1 to about 5 f> a condensation product as defined herein in combination with about 0.5 to about 20 ^ of a surfactant selected from the groups

(a) Ethoxylated alkylphenols in which the entire alkyl substituents Contain 6 to 12 carbon atoms, and the ethylene oxide (EO) in the molar ratio. from 6: 1 to 25: 1, based on d'as Alkylphenol, is present,

309834/1399

BATH ORIGINAL

(b) Condensation products from 5 to 20 (preferably 5 to 20): Get ethylene oxide with 1 oil of an aliphatic, straight chain or branched, unsaturated and saturated Aiko- j hols with 10 to 16 (preferably 12 to 15) carbon atoms and ί (Unsaturated) 18 carbon atoms, branched alcohols ι with 18 and 20 carbon atoms can also be used, and

(c) I. ionoethane oil amide with 10 to 14 carbon atoms in the alkyl chain, which condenses from 3 to 25, preferably 5 to 15, EQ units are.

The invention also relates to washing methods using the same Mixtures of polymers and special surfactants.

The preferred non-ionic surfactants are Nonylphenol, which is condensed with 7 to 12 EO units,

secondary C ₁₀ -AIkQhOIe, which are condensed with 3 "to 12 EO units,

secondary C _1n -AIkOhOIe, which condense with 5 to 15 EO-units-15 ·

are ized, and

primary C ₁₂ to C ₁ alcohols condensed with 8 to 15 EO units.

The detergents of the invention can also contain surfactants other than the aforementioned surfactants. It has been found that relatively small amounts of anionic surfactants, unlike certain soaps, can reduce the soil release effect achieved by the practice of the invention. For example, it has been found that the addition of up to 80 ^ _1, preferably not more than 40 ^ (based on the weight of the nonionic clayside), dodecylbenzenesulfonate can be tolerated, while still obtaining a useful technical effect. Bigger ones

309884/1399

BATH ORIGINAL

Fractions of non-ionic surfactants outside the definition can be tolerated. Other types of surfactants outside. ! According to the definition, for example non-ionic, anphoteric or `` zwitterionic surfactants '', can be present in relatively large quantities without a serious loss of the dirt-releasing properties occurring as a result. Thus, the use of a mixture of nonionic T ens id en., The genius containing both surfactants within and outside of the aforementioned definition, the soil release properties of the invention.

The detergents of the invention contain the other necessary ones or optional "components such as builders, for example Na.-triuntripolyphosphate, Sodium orthophosphate, sodium carbonate, Salts and esters of carbonated fatty acids, salts of nitrilotriacetic acid, Salts of ethylenediaminetetraacetic acid and phosphonate derivatives thereof, oxidized starches and polymers Builders, such as polycarboxylates: other surfactants, silicates (the may be included as builders), substances that improve the wearability of dirt, such as sodium carboxymethyl cellulose or Polyvinylpyrrolidone, fluorescent substances, germicides, enzymes or bleaches. The solid form of the agent is not subject to any Restriction; all known forms, such as pellets, powder, flakes or extruded moldings, are available. the Invention is also applicable to liquid funds.

In a preferred solid agent, the copolymer is formed with an organic, extrudable solid to form Beads mixed. This process is described in GB-PS 1 204.

Examples of agents according to the invention are described below. The following test is used to determine soil release efficiency used.

309884/1390

Test procedure

About 8 g of polyamide fabric ("bulked") or light, knotted shirt fabric is washed once in 1 liter of a wash liquor containing 0.05 $ of a surfactant from the defined range of surface-active substances or surfactants and 0.10 4> sodium tripolyphosphate . The laundry is measured in a Terg-0-Tometer (Manuf. United States Testing Go. Ltd., Hoboken NJ) both in the absence and in the presence of $ 0.0015 polymers! Carried out for 30 minutes at 5O ⁰ C and a water hardness of 24 H, followed by rinsing and drying.

Samples (about 1.0 g) of the treated fabric are soiled with about 0.035 g of dirty sump oil using a standard procedure. After about 15 minutes of aging, two soiled pieces are put together once in the Terg-O-Tometer in 1 liter of the same surface-active or. Surfactant system, as washed in the pre-treatment, 10 minutes at 50 ° C and a water hardness of 24 ⁰ H. Following rinsing and drying, the reflections of the stains are measured using an Elrepho reflectometer.

example 1

There is an oil pan oil soil removal test with polyamide fabric ("bulked ' ¹ ) using the method described and using a polymer prepared from 2 moles of adipic acid, 1 mole of polyoxyethylene glycol (molecular weight 2000) and caprolactam, the latter in an amount of 35 The Tennid used is a nonylphervol with 8 EO, and the content of the polymer in the wash liquor is 0.0015 ^c r Polyr.eren3U. ° Atzes washed specimen beträft 77?>, which is a P-on excellent chriutzablösungeeff ect indicating, while in the absence of the reflection Zunatz.es?> is only 23>. 5

3Q9884 / 1399

23350U

At SOJel 2

Example 1 is repeated using a polymer which consists of 2 LIoI adipic acid, 1IJoI polyoxyethylene glycol (TJolecular weight 1540), "nylon" -Sal3 in a "! Narrowness of 10 percent by weight, based on the total reactants, as well as caprolactan, which in one Henge of 42% by weight based on the final polymer is present, a reflection of 7 ^ f- is observed, if an excellent rust removal rate is indicated.

Example ^

Example 1 is repeated using Tonvlphenol nit 12EO as a Tennid. A reflection of 73 ? · Is achieved, compared to a reflection of 36 ?> For fabric that has been washed in the absence of the polymer additive.

Example 4

Example 2 is made using nonylphenol rit 12 EO as the Surfactant repeated. A reflection of 79 ^ is observed.

Further examples are summarized in Table I.

309834/1399

BATH ORIGINAL

to co

^; 3eir> piel Pol'Tieres polymer surfactant $ reflection control

as shown in example, $ rait polymers!

ι 5 1

! 6 2

7 1

■ 3 2

! 9 1

ho

ι | 12

0.0015 secondary 5 EO 79.0 27.5 0.0015 secondary
C ₁₅ -AICOHOL 5 EO 79.5 27.5 0.0015 secondary
C ₁₅ -AICOHOL 9 EO 79.5 26.5 0.0015 secondary
C ₁₅ -AICOHOL 9 EO 81.0 26.5 0.0015 secondary
C * alcohol 15th EO 73.5 30.5 0.0015 secondary
C ₁₅ alcohol 15th Έ0 73.5 30.5 0.0015 ■ orimärcr
C. _1-alcohol 9 EO 80.0 30.5 0.0015 primary 80.0 30.5

C .., - Alcohol 9 EO

Νί

Example 1 is repeated using sodium oleate as surfactant. The fabric washed in the presence of the polishing additive gives a reflection of 69 , while the fabric washed in the absence of the additive gives a reflection of 33 Λ>.

Examples showing the disruptive effect of anionic surfactants, which are not soaps, on the dirt removal properties are listed in Table II.

309884/1399

CD

Table II ■ Polymer | cvj polymer
content, io Surfactant
salary, i Surfactant example as in example 2 0.0015 0.05 secondary
C ₁₅ alcohol 9 EO 14th as in example 0.0015 0.045 secondary
C ₁₅ alcohol 9 EO ^15th CvJ 0.005 Dodecylbenzene
sulfonate as in example 0.0015 0.04 secondary
■ C ₁₅ -AIkOhOl 9 EO 16 CvI 0.01
* Dodecylbenzene
sulfonate as in example 0.0015 0.035 secondary
C ₁₅ -AIkOhOl 9 EO 17th 2 0.015 Dodecylbenzene
sulfonate as in example 0.0015 0.025 secondary
C ₁₅ -AIkOhOl 9 EO 18th 0.025 Dodeoylbenzene
sulfonate

io reflection control

with polymer le

80

61.5

40.5

23

24

25th

28

34.5

Example 19

An oil pan oil dirt detachment test is carried out with light, knotted polyamide-Hend fabric using the described: ·! I.Iethode and use of a polymer carried out by reacting 2 1.1 oil of adipic acid, 1 hol polyoxyethylene glycol (molecular weight 1000) and caprolactan, the latter being present in an amount of 40 percent by weight, based on the final polymer . The surfactant used is a secondary C .. (- alcohol with 9 Ξ0, and the content of polymers in the wash liquor is 0.003 · The reflection of the fabric washed in comparison to the polymer: i additive is 65.5 ?>, Which indicates a good dirt removal effect, while the reflection, in the absence of the additive, is 42.5 *? * .

Example 20

Example 19 is repeated using a polymer: the reaction of 2 I.lol adipic acid, 1 mol polyoxyethy! Lenglycol (molecular weight 1540), ^II nylon "-Sal2" in an amount of 10 percent by weight, based on the total reactants, and caprolactam in an amount of 42 percent by weight, based on the final polymer achieved reflection of 80 ^, indicating an excellent soil release effect, in contrast to 42.5?> for the washed in the absence of the polymeric additive tissue.

Other examples according to Example 19 are summarized in Table III.

309884/1399

BATH ORIGINAL

Tabel Ill Polyoxy
ethylene
glycol,
Get • MG
Polyoxy
ethylene • —11 - fo reflection • without Ca) example Adipine
TJoIe 1 1000 with
Polymers! 42.5 cn
CD 21 2 1 1540 Caprolactam, nylon salt, 62.5 42.5 22nd 2 1 1540 61.5 65 42.5 23 2 ... 1 1540 12.5. 71 42.5 (λ?
ο 24 2 1 2000 35.5 63 42.5 to
co 25th 2 1 2000 56 76.5 42.5 β » 26th 2 1 3000 29 74.5 42.5 27 2 1 3000 42.5 76 42.5 9 Ο . 2 1 1540 25th 71 4 ?, 5 co 29 2 1 1540 , 34.5 80 42.5 30th 2 1 600 ' 15 30 , 81 42.5 31 2 1 1540 42 10 72 42.5 32 1 1 1540 ■ 55 63.5 42.5 33 3 1 1000 53.5 67.6 42.5 34 3 52.2 64 55

- Al-

The following nonicrio ^ eiien Tenn: d.3 nird not in the defined KlansG included.

Hardened Tallow Fatty Acid 5 EO Hardened Tallow Fatty Acid 20 EO Hardened Tü'lr ^ l ^ ohol 10 BO Hardened Tal ^ i? .lkohol 18 SO Primary
primary

-Alcohol 5 EO Alcohol 13 EO

Reflection, ^Γ ' ! Oh/"! VJl J ^ it ToT 'HO ¹¹ PT 26, 32 30, 33 26th VJl 34 26th π 35 26 _r 32 23, 35

309884/1399

ι> i! A

Claims (2)

j " ** ~ 233504A Patents π ό r i \ ehe. 1 - Il Il ι -. ■. I. Ί. V / as chn itt egg powder or -flüsnigke lter ^1, about 0.1 "to. About 5 5 ^ a s defined herein in combination Koiidensationsprodukts nit about 0.5 bir · about 20 f> a T ens ids, a. unselected to the groups (a) Ethoxylated alkylphenols in which the total alkyl substituent Contains 6 to 12 carbon atoms, viid the ethylene oxide (EO) in Llolverhältris of 6; 1 to 25: 1 based on the Alkylphen oil, is present, (b) Condensation rates from 5 to 30 (preferably 5 to 20) Get ethylene oxide with 1 TToI of an aliphatic, straight chain or branched, unsaturated and saturated alcohol with 10 to 16 (preferably 12 to 15) carbon atoms and (unsaturated) 18 carbon atoms, branched alcohols with 18 and 20 carbon atoms also being able to be used, and (c) Tlonoethanolanides with 10 to 14 carbon atoms in the alkyl chain, condensed with 3 to 25, preferably 5 to 15, EO units Bind 2. Detergent according to claim 1, characterized in that the Surfactant from the groups ITonylphenol, condensed with 7 to 12 EO units, secondary O ₁ ^ alcohols condensed with 3 to 12 EO units, secondary C ^ alcohols condensed with 5 to 15 EO units, primary C _1P - to C ₁₄ -AlkOIe, condensed with 8 to 15 EO units, ιau s selected. 309884/1399