Classifications

• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/0005—Other compounding ingredients characterised by their effect
  • C11D3/001—Softening compositions
  • C11D3/0015—Softening compositions liquid
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/88—Ampholytes; Electroneutral compounds
  • C11D1/94—Mixtures with anionic, cationic or non-ionic compounds
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/38—Cationic compounds
  • C11D1/62—Quaternary ammonium compounds
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/88—Ampholytes; Electroneutral compounds
  • C11D1/90—Betaines

Definitions

• the invention relates to fabric softener formulations containing hydrolyzable betaine ester derivatives in addition to liquid esterquat fabric softener formulations for the controlled release of surfactants, and a commercial process for improving the washing performance of detergents using the fabric softener formulations.
• cleaning requires the wetting of the items to be cleaned with the washing liquor and the rewetting of the solid or oily particle dirt. Wetting and rewetting are brought about by surfactants.
• the electrochemical double layer formed between fiber, dirt particles and surfactant is significantly increased by anionic surfactants and builders, which increases the repulsion between dirt and fiber.
• the detached liquid grease and oil dirt is solubilized by the micelles formed by the surfactants and thus kept in the wash liquor.
• Particle dirt is electrically charged by the adsorption of surfactants and dispersed in the wash liquor due to the repulsion of the individual particles, so that there is no redeposition on the fabric.
• Nonionic surfactants are generally used in detergent formulations because of their ability to remove greasy and oily dirt.
• cationic surfactants in detergent formulations, in particular also because of the additional textile care effects attributed to them and not exclusively as cleaning agents.
• Such additional effects that can be observed depending on the structure of the cationic surfactants are, for example, the softening (US Pat. No. 3,607,763), the antistatic (US Pat. No. 3,951,879; US Pat. No. 3,959,157) and the bacteriocidal (US Pat. No. 2,742,434) ; US-3 539 520; US-3 965 026) and the color-protecting effect or the improvement of the water absorption ability of the tissue treated with them.
• Basic detergent formulations are also known, in which selected nonionic and cationic surfactants are combined in order to achieve improved soil removal, as described in the patents US Pat. No. 4,239,660 or also US Pat. No. 4,260,529.
• No. 4,260,529 describes detergent formulations which, in addition to a biodegradable nonionic surfactant, contain betaine ester derivatives in the form of cationic ammonium salts.
• These detergent formulations for the main wash cycle are said to have a high washing effect if they are used in the alkaline pH range of expressly below 11 in the main wash cycle, so that hydrolysis of the surfactants used is prevented.
• Cationic surfactants with different structures are used as raw materials for fabric softeners.
• Ester compounds based on triethanolamine such as N-methyl, N, N-bis (beta-C ⁇ 4 - 18 -acyloxyethyl) -, N-beta-hydroxyethylammonium methosulfate, which are marketed under trade names such as Tetranyl® AT 75, are particularly widespread
• R is an optionally branched, optionally unsaturated radical, optionally containing a hydroxyl group or other heteroatom substituent, with 1 to 30 C atoms,
• X is a radical from the group -OC (O) -, - (O) CO-, -NH-C (O) -, - (O) C-NH, - (CH 3 ) NC (0) -, - ( 0) CN (CH 3 ) -, -S (0 2 ) -0-, -0-S (0 2 ) -, -S (0 2 ) -NH-, -NH-S (0 2 ) -, - S is (0 2 ) -N (CH 3 ) -, -N (CH 3 ) -S (0 2 ) -,
• R b , R c are independent of one another and are, if appropriate, branched alkyl radicals having 1 to 4 carbon atoms, where these may optionally contain heteroatom substituents,
• R d , R e are selected independently of one another from hydrogen (H), optionally branched alkyl radicals having 1 to 4 carbon atoms, optionally substituted aryl or benzyl radicals and also CH 2 COOH, CH 2 COOR, CH 2 CH 2 COOH, CH 2 CH 2 COOR,
• R f is a branched and / or substituted and / or cyclic hydrocarbon radical with 1 to 10, preferably 2 or 3 hydrocarbon atoms or a styrene radical or optionally composed of ethylene, propylene, butylene or styrene radicals or one of the radicals, or one of the said radicals containing block copolymer or randomly built polymer,
• R 9 is an optionally branched, optionally cyclic hydrocarbon radical with 1 to 30 C atoms, optionally containing double bonds,
• Z is a radical from the group nitrogen atom, oxygen atom, -0C- (0) -, -NH-C (O) -, - (CH 3 ) NC (0) -,
• k and 1 are independently 1 to 4, where k is preferably 2 or 3 and 1 is preferably 1,
• m has a value of 0 to 30, preferably 1 to 10, in particular 3 to 7 and
• the heteroatom substituents of the radical R a can comprise an amino group and / or a sulfonic acid group.
• the radical R a of the betaine ester derivatives preferably comprises a long-chain alkyl radical with 7 to 21 C atoms, in particular a long-chain alkyl radical with 9 to 17 C atoms.
• Y according to formula (II) is preferably a substituted nitrogen atom or phosphorus atom, and the radicals R b and R c are simultaneously —CH 3 .
• radicals R d and R e can be H at the same time.
• X is -C (0) -NH- or C (O) -N (CH 3 ) -.
• R is preferably an ethylene radical or a propylene radical
• Y should preferably be a substituted nitrogen atom according to formula (II).
• R 9 is preferably the residue of a fatty alcohol based on natural fatty acids which can be prepared by known processes.
• Fatty acids for the production of fatty alcohols - individually or in mixtures - are fatty acids such as caproic acid, caprylic acid, capric acid, 2-ethylhexanoic acid, lauric acid, myristic acid, palmitic acid, palmitoleic acid, isostearic acid, stearic acid, hydroxystearic acid (ricinoleic acid), dihydroxystearic acid, oleic acid , Linoleic acid, petrolesic acid, elaidic acid, arachic acid, behenic acid and erucic acid, gadoleic acid and the technical mixtures resulting from the pressure splitting of natural fats and oils, such as oleic acid, linoleic acid, linolenic acid, and in particular coconut fatty acid, rapeseed oil fatty acid, soybean oil fatty acid, sunflower oil fatty acid, and tall oil fatty acid. In principle, all fatty acids with a similar chain distribution are suitable.
• the content of these fatty acids or fatty acid esters in unsaturated fractions is - if necessary - adjusted to a desired iodine number by the known catalytic hydrogenation processes or achieved by mixing fully hydrogenated with non-hydrogenated fat components.
• the iodine number is the amount of iodine which is taken up by 100 g of the compound to saturate the double bonds.
• the soft laundry formulations have a content of at least 1% by weight, particularly 1 to 10, very particularly 2 to 5, of at least one of the betaine ester derivatives mentioned, together 5 to 20% by weight, particularly 13 to 20, of one or more esterquat Fabric softeners, and the rest up to 100% by weight of customary auxiliaries and additives and, if appropriate, water.
• the auxiliaries and additives are preferably selected from nonionic and ionic dispersants, (C 1 to C 5 ) alkanols, ethylene glycol, propylene glycol, polyglycol, and also their derivatives, ethoxylated or propoxylated phenol, benzyl alcohol, isopropanol, isobutanol with a medium Degree of alkoxylation of> 2.5 to 3.5 and dyes and perfume oils and in particular in a proportion of up to 5% by weight, especially 1 to 3.
• nonionic and ionic dispersants C 1 to C 5 alkanols, ethylene glycol, propylene glycol, polyglycol, and also their derivatives, ethoxylated or propoxylated phenol, benzyl alcohol, isopropanol, isobutanol with a medium Degree of alkoxylation of> 2.5 to 3.5 and dyes and perfume oils and in particular in a proportion of up to 5% by weight, especially 1 to 3.
• the laundry softener formulations according to the invention contain betaine ester derivatives with an excellent substantivity and can thus, once drawn onto the fiber, be regarded as a carrier of an ionic and nonionic surfactant which controls them, that is to say releases them on the next wash.
• non-ionic surfactants can be fixed on textile fibers for the subsequent wash cycle by temporarily incorporating them into a cationic compound.
• one or more further quaternary ammonium compounds can be contained in the fabric softening agents according to the invention.
• Quaternary ammonium compounds in this sense can be described, for example, by the general formula (III):
• R -CH 3 , -CH 2 CH 3 , -CH 2 -CH (R 4 ) -OR 1 , -CH 2 -CH (R 5 ) -OR 2 , wherein R 4 , R 5 are identical or different H, - Are CH 3 ,
• B is an anion of a quaternizing agent, in particular dimethyl sulfate, diethyl sulfate, methyl chloride.
• the method according to the invention for improving the washing performance of detergents provides for the following steps:
• a post-treatment of the clean laundry according to step (B) can also be carried out exclusively with betaine ester formulations alone.
• the subsequent washing process is carried out analogously (C).
• the required pH values are set by means of a neutralization step with sufficient amounts of inorganic, but preferably conventional, organic mono- or polybasic acids. It is also advantageous for Applications of soft laundry formulations using appropriate buffer substances instead of acids.
• a wash cycle usually means that the dry or damp soiled laundry is placed in the washing machine and cleaned with the added detergent and the washing mechanism.
• the detergents customary in the prior art only wet the dirt on the textile fibers from the outside. There are initially no surfactant molecules between the textile fibers and the dirt particles.
• the soft feel was checked on commercially available cotton terry fabrics.
• aqueous fabric softener formulations were produced from commercially available esterquats (for example Rewoquat® WE 18) and in the formulations 2 to 11 according to the invention using additives, the additives according to the formulations 2 to 11 generally in 2% by weight based on the finished fabric softener, in the case of recipes 3 and 6 in
• formulations according to the invention with the additions of the betaine ester derivatives Ia-f should ideally have a neutral behavior with regard to the soft hand of the treated tissue. A negative effect on the soft grip led to a devaluation in the overall assessment.
• the use concentration of all fabric softener formulations was 0.025% by weight for the evaluation of the fabric handle.
• the fabric softeners were dosed both with the usual concentration of 0.025% by weight active content and with an excessive concentration of 0.075% by weight.
• Both the commercially available "monitors” (standardized, soiled test textiles) were used, as well as specially pretreated ones.
• the specially pretreated were initially the one at Subject to the usual pre-washing process from EMPA and, in addition, the residual alkalinity resulting from the washing cycle was eliminated in a neutralization step.
• this step is easily programmable in an industrial washing system, it can be manually switched in with the usual washing programs in a standard household washing machine. It is necessary to avoid premature hydrolysis of the betaine ester derivatives according to the invention.
• the "monitors" were treated with a fabric softener.

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• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Organic Chemistry (AREA)
• Detergent Compositions (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Applications Claiming Priority (3)

Publications (2)

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• 2002
  • 2002-04-20 DE DE10217705A patent/DE10217705A1/de not_active Withdrawn
• 2003
  • 2003-04-15 EP EP03718759A patent/EP1497402B1/fr not_active Expired - Lifetime
  • 2003-04-15 DE DE50306660T patent/DE50306660D1/de not_active Expired - Fee Related
  • 2003-04-15 WO PCT/EP2003/003912 patent/WO2003089558A1/fr active IP Right Grant
  • 2003-04-15 AT AT03718759T patent/ATE355353T1/de not_active IP Right Cessation
  • 2003-04-15 CA CA002482998A patent/CA2482998A1/fr not_active Abandoned
  • 2003-04-15 AU AU2003222815A patent/AU2003222815A1/en not_active Abandoned
• 2004
  • 2004-10-19 US US10/967,777 patent/US7056878B2/en not_active Expired - Fee Related

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