CA2145096A1 - Phosphate and chlorine-free detergent - Google Patents
Phosphate and chlorine-free detergentInfo
- Publication number
- CA2145096A1 CA2145096A1 CA 2145096 CA2145096A CA2145096A1 CA 2145096 A1 CA2145096 A1 CA 2145096A1 CA 2145096 CA2145096 CA 2145096 CA 2145096 A CA2145096 A CA 2145096A CA 2145096 A1 CA2145096 A1 CA 2145096A1
- Authority
- CA
- Canada
- Prior art keywords
- detergent
- weight
- sodium
- citric acid
- amphoteric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
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
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0047—Detergents in the form of bars or tablets
- C11D17/0065—Solid detergents containing builders
- C11D17/0073—Tablets
-
- 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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2086—Hydroxy carboxylic acids-salts thereof
-
- 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
- C11D1/02—Anionic 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
- C11D1/66—Non-ionic compounds
Landscapes
- 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)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Detergent Compositions (AREA)
Abstract
The novel environmentally friendly products based on detergent, non-ionic and/or anionic surface-active substances additionally contain amphoteric surfactants and citric acid or salts thereof and further auxiliaries. As a consequence of their high washing activity, very sparing amounts are used both for textile cleaning and for crockery cleaning.
Description
214S09~
Phoæphate- and chlorine-free deterqent With the increasing environmental consciousness of the population there is also an increase in the housewife's need for a detergent which i~ not damaging to the environment but has outst~n~;ng detergency perform-ance. There are likewise great increases in the statu-tory requirements in relation to the water protection regulations.
Currently various products which are c~mm~n~ed as "environmentally friendly" or "ecological" products are commercially available. However, most of these do not on closer ~min~tion meet the st~n~ds fixed by law or they do not give the desired wash results.
One object of the invention was therefore to develop a detergent which is phosphate- and chlorine-free and does not give rise to any other unwanted water pollution either but, at the same time, achieves good results for all the housewife's requirements in respect of fabric care, cl~n;ng power, spot removal etc. in machine washing and hand wA~h;n~.
Another object of the invention was to produce a phosphate- and chlorine-free detergent for dighw~Rh;ng machines which likewise sati~fies all the requirements of water protection and has the washing activity necessary to remove completely all soiling on crockery and cutlery without attacking the washed items.
It has been possible, surpri~ingly, to achieve both objects by a novel suitable combination of known compounds.
30The phosphate- and chlorine-free detergents and dishwashing composition~ according to the invention are defined in Claim 1.
A preferred composition for a textile detergent of this type contains, apart from the detergent sub-stances and citric acid, a component which enhances the wash efficiency (activator), alkali metal carbGnates to adjust the desired pH, alkali metal silicates, se~ues-trants, optical brighteners, enzymes and, where appropri-ate, dyes and perfume.
21~509~
Suitable detergent substances for textile deter-gents preferably comprise a combination of amphoteric and non-ionic and/or anionic surface-active substances. Thus, for example,it is possible to use aQ anionic surface-active substances products based on sodium lauryl sul-phates ~uch as the comm~rcial product "Texapon"
(Henkel AG) or natural soaps such as basic soap, or mixtures thereof. It is possible to use as non-ionic surface-active RubRtance known product3 based on ethoxy-lates of higher fatty alcohols, such a8 the "Lutensol8"of BASF and others, and fatty alcohols. Examples of suitable amphoteric surface-active substances are the products marketed, for example under the name "Ampholak"
by Berol Nobel AB. The detergent subRtances are advan-tageously pre~ent in a total amount of 10-50% by weight in the textile detergent according to the invention.
Thanks to this combination of detergent substances, the wash efficiency of the product does not depend on the washing temperature; this is all the more 80 since no bleach component i~ present, which exert its effect only at elevated temperatures, for example above 60C.
It i8 po~Qible where appropriate to add NTA, in particular in the form of it~ trisodium salt as obtain-able, for example, from BASF as "Trilon". In an amount of up to 10% by weight it replaces the phosphates used ~ormerly and additionally acts as oxidation inhibitor.
Another crucial ingredient which should be mentioned iR citric acid or salts thereof. In an amount of 1-20% by weight it ensures the good ~olubility of the detergent and at the same time acts as se~uestrant.
The activator component preferably contains borates and/or perborate~ (commercially available sodium borate and/or perborate), and normally in an amount of 10-20% by weight.
Optical brighteners can furthermore serve to assist the activator component and are normally added in an amount of up to 1% by weight. The products obt~;n~hle under the name "Tinopal" from CIBA-GEIGY AG have proved very ~uitable for this purpo~e.
- 21~09~
Further auxiliaries which should be mentioned are, in particular, the following, who~e use in the stated amounts is to be rec~mm~n~ for textile deter-gents both for hand w~h;ng and machine wA~hing 1) Enzymes Various enzymes are c~mm~rcially available for use in detergents, and most of them act specifically on particular types of ~oiling. The proteases, in particular a mixture of savinase and esperase, or else alcalase, and lipases and aminolytic enzymes such as "Ter~myl", have proved outst~n~;n~ly suitable for the purpose of the present invention. The said enzymes, which are generally used in a total amount of 0.5-8% by weight, can be obtained from Novo Nordisk Industrie, Copenhagen.
Phoæphate- and chlorine-free deterqent With the increasing environmental consciousness of the population there is also an increase in the housewife's need for a detergent which i~ not damaging to the environment but has outst~n~;ng detergency perform-ance. There are likewise great increases in the statu-tory requirements in relation to the water protection regulations.
Currently various products which are c~mm~n~ed as "environmentally friendly" or "ecological" products are commercially available. However, most of these do not on closer ~min~tion meet the st~n~ds fixed by law or they do not give the desired wash results.
One object of the invention was therefore to develop a detergent which is phosphate- and chlorine-free and does not give rise to any other unwanted water pollution either but, at the same time, achieves good results for all the housewife's requirements in respect of fabric care, cl~n;ng power, spot removal etc. in machine washing and hand wA~h;n~.
Another object of the invention was to produce a phosphate- and chlorine-free detergent for dighw~Rh;ng machines which likewise sati~fies all the requirements of water protection and has the washing activity necessary to remove completely all soiling on crockery and cutlery without attacking the washed items.
It has been possible, surpri~ingly, to achieve both objects by a novel suitable combination of known compounds.
30The phosphate- and chlorine-free detergents and dishwashing composition~ according to the invention are defined in Claim 1.
A preferred composition for a textile detergent of this type contains, apart from the detergent sub-stances and citric acid, a component which enhances the wash efficiency (activator), alkali metal carbGnates to adjust the desired pH, alkali metal silicates, se~ues-trants, optical brighteners, enzymes and, where appropri-ate, dyes and perfume.
21~509~
Suitable detergent substances for textile deter-gents preferably comprise a combination of amphoteric and non-ionic and/or anionic surface-active substances. Thus, for example,it is possible to use aQ anionic surface-active substances products based on sodium lauryl sul-phates ~uch as the comm~rcial product "Texapon"
(Henkel AG) or natural soaps such as basic soap, or mixtures thereof. It is possible to use as non-ionic surface-active RubRtance known product3 based on ethoxy-lates of higher fatty alcohols, such a8 the "Lutensol8"of BASF and others, and fatty alcohols. Examples of suitable amphoteric surface-active substances are the products marketed, for example under the name "Ampholak"
by Berol Nobel AB. The detergent subRtances are advan-tageously pre~ent in a total amount of 10-50% by weight in the textile detergent according to the invention.
Thanks to this combination of detergent substances, the wash efficiency of the product does not depend on the washing temperature; this is all the more 80 since no bleach component i~ present, which exert its effect only at elevated temperatures, for example above 60C.
It i8 po~Qible where appropriate to add NTA, in particular in the form of it~ trisodium salt as obtain-able, for example, from BASF as "Trilon". In an amount of up to 10% by weight it replaces the phosphates used ~ormerly and additionally acts as oxidation inhibitor.
Another crucial ingredient which should be mentioned iR citric acid or salts thereof. In an amount of 1-20% by weight it ensures the good ~olubility of the detergent and at the same time acts as se~uestrant.
The activator component preferably contains borates and/or perborate~ (commercially available sodium borate and/or perborate), and normally in an amount of 10-20% by weight.
Optical brighteners can furthermore serve to assist the activator component and are normally added in an amount of up to 1% by weight. The products obt~;n~hle under the name "Tinopal" from CIBA-GEIGY AG have proved very ~uitable for this purpo~e.
- 21~09~
Further auxiliaries which should be mentioned are, in particular, the following, who~e use in the stated amounts is to be rec~mm~n~ for textile deter-gents both for hand w~h;ng and machine wA~hing 1) Enzymes Various enzymes are c~mm~rcially available for use in detergents, and most of them act specifically on particular types of ~oiling. The proteases, in particular a mixture of savinase and esperase, or else alcalase, and lipases and aminolytic enzymes such as "Ter~myl", have proved outst~n~;n~ly suitable for the purpose of the present invention. The said enzymes, which are generally used in a total amount of 0.5-8% by weight, can be obtained from Novo Nordisk Industrie, Copenhagen.
2) Carboxymethylcellulose.
This agent, which gives the detached soil par-ticles in suspension and, when the detergent is in the form of tablets, additionally contributes to their rapid disintegration in the water, can be added in an amount of, normally, up to 8% by weight.
This agent, which gives the detached soil par-ticles in suspension and, when the detergent is in the form of tablets, additionally contributes to their rapid disintegration in the water, can be added in an amount of, normally, up to 8% by weight.
3) Zeolites, generally in an amount of 5-40% by weight to increase the complexing action for alkaline earth metal and metal ions in water. Suitable products are commer-cially available from Degussa.
4) Sodium carbonate and/or bicarbonate can be added in a total amount of 3-20% by weight in order to ~et the de~ired pH of about 10-12, preferably 10-11.
5) Fibre protecting agent~ and corrosion inhibitors:
sodium metasilicates and di~ilicates are preferably used as such in an amount of 5-15~ by weight.
sodium metasilicates and di~ilicates are preferably used as such in an amount of 5-15~ by weight.
6) Dyes, for example ultramarine, and perfumes in suffi-cient amounts if re~uired.
The most important advantage which can be men-tioned for the detergents according to the invention is the complete absence of phosphate~ and chlorine and of fillers. A~ a consequence of the very careful selection of the components and the amounts used, not only is all environmental pollution, e~pecially water pollution, reduced to an acceptable extent complying with the ~ 2145~g~
current strict regulations, but the product has such a concentrated wash efficiency that the dosage can be reduced to a fraction of the amounts recomm~n~ed for 80-called "concentrates". This in turn makes it possible to have ~maller packs and less packaging waste.
Textile detergents are produced from the above-mentioned ingredients in a simple ~nner. The ingredients are m; ~e~ together very thoroughly without adding 801-vents of any type. It is advantageous for the production of the detergents according to the invention not to mix the individual ingredients in arbitrary se~uence but to proceed, for example, as follows.
Fir~tly a mixture A which contains the amphoteric and, if present, the anionic surface-active ~ubstance~
together with stabilizing agents and agents enhancing the wash efficiency, such a~ sodium carbonate and/or sodium bicarbonate, ~odium silicate, carboxymethylcellulose and zeolite is produced.
On the other hand, mixture B is produced from the non-ionic ~urface-active substances with stabilizing agents and agents enhancing the wash efficiency, such as sodium carbonate/~odium bicarbonate, carboxymethylcellu-lose and zeolite.
The two mixtures A and B are then combined and combined with the r~m~ining ingredient~, namely borate and/or perborate, enzymes, citric acid, optical brighteners and, where appropriate, perfume and dyes.
The free-flowing product obtained in this way has a general t~n~nCy to form agglomerates, and it is therefore advisable to process it to tablets which are used in a preferred dosage of 12 g/kg of dry laundry for machine w~ ~h i ng and hand w~ ~h i ng, The powder mixture can be compressed to tablet~
without further additives. This form has some advantages by comparison with free-flowing powder mixtures. Its dosage is con~iderably simpler, and the packaging, for example in the bliRter packs which are popular now, is imperme~hle to air and moisture, Qpace-Raving and environmentally friendly and makes it posRible for the ~ 50~
detergent to be used without being touched by the u~er.
The components are cho~en ~o that the tablet~ readily di~integrate on contact with water and ;mm~iately di~solve completely in the wARhin~ liquor, even at low temperatures. The tablet~ preferably have a weight of 12 g and a diameter of 30-32 mm and are advantageou~ly ~e~
directly to the laundry in the wash drum.
A large number of inveRtigation~ have shown that the compositions according to the invention not only meet all the requirements of the authoritie~ in respect of envil. -ntal and water protection, they contain no injurious ~ubstance~ what~oever and have proved to be entirely non-hazardou~ for the health of hllm~n~ and ~ni~-l~, aR long a~ the uAual precautionary measures and dosages as generally applied to work in the household are complied with.
The detergentA are non-damaging for all type~ of fabrics and fibres, take care even of the most delicate textiles, do not attack textile colours and result in surpriQing removal of ~oil and ~pots even in cold water, but even more so at temperatures of 40-60C. Comparative te~tQ with w~hing proces~es at 60C and 95C have ~hown that the laundry wa~ not cleaned better or more quickly on boiling.
- Inve~tigation~ are in progre~ into the disinfec-tant action of the detergents according to the invention.
A compo~ition which may be recomm~n~ed for the detergent~ i8 the following (in percentage~ by weight):
Detergent ~ubstance~
(amphoteric~ 5-15 preferably 8-12 Detergent ~ub~tance3 (non-ionic) 5-20 " 10-14 Sodium borate and/or perborate 10-20 "
Sodium carbonate and/or bicarbonate 3-20 " 1-15 Sodium meta~ilicate0.1-5 " 0.5-4 Sodium di~ilicate 1-10 '~ 4-8 NTA Na3 0-10 " 3-10 21~5~9~
CMC 0_7 n 1-4 Enzymes 0.5-8 ll 1-5 Optical brighteners 0-1 " 0.1-0.3 Citric acid or salts thereof 1-20 ll 5-15 Zeolites 5-40 ll 5-20 All guantitative data are based on the weight of the finished mixture.
The invention further~ore embraces a novel detergent for dishwA~h;n~ ~chines and is based on the same flln~Am~ntals~ is completely phosphate- and chlorine-free and achieves an excellent cle~ning power with m~; mllm care for crockery (even with delicate decora-tion), cutlery and gla~ses, and brilliant lustre.
A suitable composition comprises in % by weight:
Amphoteric surfactant 1-8 preferably 1-3 NTA Na3 20-30 " 10-25 Non-ionic surfactant 5-15 ll 2-8 Sodium metasilicate 5- 30 ll 7 - 25 Sodium carbonate 20-35 ll 15-30 Citric acid 10-30 " 18 - 25 Enzymes 5-12 " 6-10 Sodium percarbonate 0- 8 This composition can also advantageously be compressed without further additive to tablets which are preferably of 8 g, which are handy and readily soluble.
One tablet i~ placed in the powder compartment of the dishwA~h; ng machine.
The following examples illustrate the invention in detail without restricting it in any way. It is clear to the skilled person that additional auxiliaries may be added for particular requirements.
Example 1 Textile detergent 100 kg of detergent powder were produced from the following ingredients (in kg):
, 2~4~09~
Component A B C
Amphoteric surfactants10 ("Ampholak") 5 Soap 5 Sodium carbonate 6.25 Sodium silicates 12.2 CMC 1.3 Zeolites 10.0 10 Optical brightener 0.2 NTA Na3 1.2 Non-ionic surfactants ("Dobanol") 6.4 Sodium carbonate 8.25 15 CMC 1.3 Zeolites 9.0 Optical brightener 0.2 NTA Na3 1.2 Sodium perborate 8.0 20 Enzymes 7.0 Citric acid 12.5 ComponentR A and B were thoroughly mixed singly and subsequently combined with the r~m~;n;ng ingredients of component C.
The re~ulting free-flowing powder is compressed in a customary way to 12 g tablets with a diameter of 30-32 mm. The dosage depend3 on the particular hardness of the water but is in general 1 12 g tablet per kg of dry laundry.
It is, of course, possible to vary the shape and weight of the tablets as desired.
Example 2 Dishwashing composition for automatic dish-washers To produce 100 kg of dishw~h;ng composition, the following ingredients were m;~e~ together and the result-ing homogeneous powder was compressed to 8 g tablets with a diameter of 2.8 cm:
Amphoteric ~urfactant~ ("Ampholak") 5 kg 2I45~9~
Non-ionic Rurface-active agent ("Lutenol") 3 kg Sodium carbonate 20 kg Sodium percarbonate 5 kg Sodium metasilicate 22 kg 5 Citric acid 20 kg NTA Na3 20 kg EnzymeR 5 kg The resulting tablets were packaged air-tight; on uRe, they are placed directly into the powder compartment of the machine. The dosage depends on the in~tructionQ of the machine manufacturer. Normally, 1 tablet iR ~uffi-cient for a normal w~h;ng cycle. The use of an addi-tional rinse aid may be advi~able when the water iR very hard, but is unnecessary in mo~t caReR.
The most important advantage which can be men-tioned for the detergents according to the invention is the complete absence of phosphate~ and chlorine and of fillers. A~ a consequence of the very careful selection of the components and the amounts used, not only is all environmental pollution, e~pecially water pollution, reduced to an acceptable extent complying with the ~ 2145~g~
current strict regulations, but the product has such a concentrated wash efficiency that the dosage can be reduced to a fraction of the amounts recomm~n~ed for 80-called "concentrates". This in turn makes it possible to have ~maller packs and less packaging waste.
Textile detergents are produced from the above-mentioned ingredients in a simple ~nner. The ingredients are m; ~e~ together very thoroughly without adding 801-vents of any type. It is advantageous for the production of the detergents according to the invention not to mix the individual ingredients in arbitrary se~uence but to proceed, for example, as follows.
Fir~tly a mixture A which contains the amphoteric and, if present, the anionic surface-active ~ubstance~
together with stabilizing agents and agents enhancing the wash efficiency, such a~ sodium carbonate and/or sodium bicarbonate, ~odium silicate, carboxymethylcellulose and zeolite is produced.
On the other hand, mixture B is produced from the non-ionic ~urface-active substances with stabilizing agents and agents enhancing the wash efficiency, such as sodium carbonate/~odium bicarbonate, carboxymethylcellu-lose and zeolite.
The two mixtures A and B are then combined and combined with the r~m~ining ingredient~, namely borate and/or perborate, enzymes, citric acid, optical brighteners and, where appropriate, perfume and dyes.
The free-flowing product obtained in this way has a general t~n~nCy to form agglomerates, and it is therefore advisable to process it to tablets which are used in a preferred dosage of 12 g/kg of dry laundry for machine w~ ~h i ng and hand w~ ~h i ng, The powder mixture can be compressed to tablet~
without further additives. This form has some advantages by comparison with free-flowing powder mixtures. Its dosage is con~iderably simpler, and the packaging, for example in the bliRter packs which are popular now, is imperme~hle to air and moisture, Qpace-Raving and environmentally friendly and makes it posRible for the ~ 50~
detergent to be used without being touched by the u~er.
The components are cho~en ~o that the tablet~ readily di~integrate on contact with water and ;mm~iately di~solve completely in the wARhin~ liquor, even at low temperatures. The tablet~ preferably have a weight of 12 g and a diameter of 30-32 mm and are advantageou~ly ~e~
directly to the laundry in the wash drum.
A large number of inveRtigation~ have shown that the compositions according to the invention not only meet all the requirements of the authoritie~ in respect of envil. -ntal and water protection, they contain no injurious ~ubstance~ what~oever and have proved to be entirely non-hazardou~ for the health of hllm~n~ and ~ni~-l~, aR long a~ the uAual precautionary measures and dosages as generally applied to work in the household are complied with.
The detergentA are non-damaging for all type~ of fabrics and fibres, take care even of the most delicate textiles, do not attack textile colours and result in surpriQing removal of ~oil and ~pots even in cold water, but even more so at temperatures of 40-60C. Comparative te~tQ with w~hing proces~es at 60C and 95C have ~hown that the laundry wa~ not cleaned better or more quickly on boiling.
- Inve~tigation~ are in progre~ into the disinfec-tant action of the detergents according to the invention.
A compo~ition which may be recomm~n~ed for the detergent~ i8 the following (in percentage~ by weight):
Detergent ~ubstance~
(amphoteric~ 5-15 preferably 8-12 Detergent ~ub~tance3 (non-ionic) 5-20 " 10-14 Sodium borate and/or perborate 10-20 "
Sodium carbonate and/or bicarbonate 3-20 " 1-15 Sodium meta~ilicate0.1-5 " 0.5-4 Sodium di~ilicate 1-10 '~ 4-8 NTA Na3 0-10 " 3-10 21~5~9~
CMC 0_7 n 1-4 Enzymes 0.5-8 ll 1-5 Optical brighteners 0-1 " 0.1-0.3 Citric acid or salts thereof 1-20 ll 5-15 Zeolites 5-40 ll 5-20 All guantitative data are based on the weight of the finished mixture.
The invention further~ore embraces a novel detergent for dishwA~h;n~ ~chines and is based on the same flln~Am~ntals~ is completely phosphate- and chlorine-free and achieves an excellent cle~ning power with m~; mllm care for crockery (even with delicate decora-tion), cutlery and gla~ses, and brilliant lustre.
A suitable composition comprises in % by weight:
Amphoteric surfactant 1-8 preferably 1-3 NTA Na3 20-30 " 10-25 Non-ionic surfactant 5-15 ll 2-8 Sodium metasilicate 5- 30 ll 7 - 25 Sodium carbonate 20-35 ll 15-30 Citric acid 10-30 " 18 - 25 Enzymes 5-12 " 6-10 Sodium percarbonate 0- 8 This composition can also advantageously be compressed without further additive to tablets which are preferably of 8 g, which are handy and readily soluble.
One tablet i~ placed in the powder compartment of the dishwA~h; ng machine.
The following examples illustrate the invention in detail without restricting it in any way. It is clear to the skilled person that additional auxiliaries may be added for particular requirements.
Example 1 Textile detergent 100 kg of detergent powder were produced from the following ingredients (in kg):
, 2~4~09~
Component A B C
Amphoteric surfactants10 ("Ampholak") 5 Soap 5 Sodium carbonate 6.25 Sodium silicates 12.2 CMC 1.3 Zeolites 10.0 10 Optical brightener 0.2 NTA Na3 1.2 Non-ionic surfactants ("Dobanol") 6.4 Sodium carbonate 8.25 15 CMC 1.3 Zeolites 9.0 Optical brightener 0.2 NTA Na3 1.2 Sodium perborate 8.0 20 Enzymes 7.0 Citric acid 12.5 ComponentR A and B were thoroughly mixed singly and subsequently combined with the r~m~;n;ng ingredients of component C.
The re~ulting free-flowing powder is compressed in a customary way to 12 g tablets with a diameter of 30-32 mm. The dosage depend3 on the particular hardness of the water but is in general 1 12 g tablet per kg of dry laundry.
It is, of course, possible to vary the shape and weight of the tablets as desired.
Example 2 Dishwashing composition for automatic dish-washers To produce 100 kg of dishw~h;ng composition, the following ingredients were m;~e~ together and the result-ing homogeneous powder was compressed to 8 g tablets with a diameter of 2.8 cm:
Amphoteric ~urfactant~ ("Ampholak") 5 kg 2I45~9~
Non-ionic Rurface-active agent ("Lutenol") 3 kg Sodium carbonate 20 kg Sodium percarbonate 5 kg Sodium metasilicate 22 kg 5 Citric acid 20 kg NTA Na3 20 kg EnzymeR 5 kg The resulting tablets were packaged air-tight; on uRe, they are placed directly into the powder compartment of the machine. The dosage depends on the in~tructionQ of the machine manufacturer. Normally, 1 tablet iR ~uffi-cient for a normal w~h;ng cycle. The use of an addi-tional rinse aid may be advi~able when the water iR very hard, but is unnecessary in mo~t caReR.
Claims (5)
1. Phosphate- and chlorine-free detergent and dishwashing compositions based on detergent, non-ionic and/or anionic surface-active substances, characterized in that they additionally contain amphoteric surface-active substances, citric acid or salts thereof.
2. Detergent and dishwashing compositions according to Patent Claim 1, characterized in that they contain 5-15% by weight of amphoteric substances and 5-30% by weight of citric acid or salts thereof.
3. Detergent for textiles according to Patent Claim 1 or 2, characterized by the following composition in per cent by weight, based on the weight of the finished product:
Detergent substances (amphoteric) 5-15 preferably 8-12 Detergent substances (non-ionic) 5-20 " 10-14 Sodium borate and/or perborate 5-20 "
Sodium carbonate and/or bicarbonate 3-20 " 1-15 Sodium metasilicate 0.1-5 " 0.5-4 Sodium disilicate 1-10 " 4-8 NTA Na3 0-10 " 3-10 CMC 0-7 " 1-4 Enzymes 0.5-8 " 1-5 Optical brighteners 0-1 " 0.1-0.3 Citric acid or salts thereof 1-20 " 5-15 Zeolite 5-40 " 5-20
Detergent substances (amphoteric) 5-15 preferably 8-12 Detergent substances (non-ionic) 5-20 " 10-14 Sodium borate and/or perborate 5-20 "
Sodium carbonate and/or bicarbonate 3-20 " 1-15 Sodium metasilicate 0.1-5 " 0.5-4 Sodium disilicate 1-10 " 4-8 NTA Na3 0-10 " 3-10 CMC 0-7 " 1-4 Enzymes 0.5-8 " 1-5 Optical brighteners 0-1 " 0.1-0.3 Citric acid or salts thereof 1-20 " 5-15 Zeolite 5-40 " 5-20
4. Dishwashing composition according to Patent Claim 1 or 2, characterized by the following composition in per cent by weight, based on the weight of the finished product:
Amphoteric surfactant 1-8 preferably 1-3 NTA Na3 20-30 " 10-25 Non-ionic surfactant 5-15 " 2-8 Sodium metasilicate 5-30 " 7-25 Sodium carbonate 20-35 " 15-30 Citric acid 10-30 " 18-25 Enzymes 5-12 " 6-10 Na percarbonate 0-8
Amphoteric surfactant 1-8 preferably 1-3 NTA Na3 20-30 " 10-25 Non-ionic surfactant 5-15 " 2-8 Sodium metasilicate 5-30 " 7-25 Sodium carbonate 20-35 " 15-30 Citric acid 10-30 " 18-25 Enzymes 5-12 " 6-10 Na percarbonate 0-8
5. Composition according to any of Claims 1-4 in tablet form.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH2359/93-6 | 1993-08-06 | ||
| CH235993A CH686002A5 (en) | 1993-08-06 | 1993-08-06 | The phosphate-free detergent. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2145096A1 true CA2145096A1 (en) | 1995-02-16 |
Family
ID=4231961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2145096 Abandoned CA2145096A1 (en) | 1993-08-06 | 1994-08-05 | Phosphate and chlorine-free detergent |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0663944A1 (en) |
| AU (1) | AU7262294A (en) |
| CA (1) | CA2145096A1 (en) |
| CH (1) | CH686002A5 (en) |
| WO (1) | WO1995004804A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9422895D0 (en) * | 1994-11-14 | 1995-01-04 | Unilever Plc | Detergent compositions |
| ZA984570B (en) | 1997-06-06 | 1999-11-29 | Unilever Plc | Cleaning compositions. |
| DE19848458A1 (en) * | 1998-10-21 | 2000-04-27 | Henkel Kgaa | Combination of laundry or other detergent moldings containing alkylbenzenesulfonate and disintegration aid based on cellulose and packaging system has packaging with low water vapor transmission rate |
| EP3656838B1 (en) * | 2018-11-26 | 2021-05-12 | Global Cosmed Group spolka akcyjna | Liquid laundry detergent |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3442812A (en) * | 1965-11-26 | 1969-05-06 | Colgate Palmolive Co | Detergent bars |
| JPS5438122B1 (en) * | 1971-04-27 | 1979-11-19 | ||
| GB2172297B (en) * | 1985-02-28 | 1989-06-21 | Procter & Gamble | Mild detergent compositions |
| JP2608327B2 (en) * | 1989-04-07 | 1997-05-07 | 花王株式会社 | Bathroom cleaning composition |
| EP0448297A1 (en) * | 1990-03-19 | 1991-09-25 | Unilever Plc | Detergent compositions |
| CA2044093A1 (en) * | 1990-06-20 | 1991-12-21 | Charles E. Jones | Chlorine-free machine dishwashing detergent |
| US5061393A (en) * | 1990-09-13 | 1991-10-29 | The Procter & Gamble Company | Acidic liquid detergent compositions for bathrooms |
| SE467927B (en) * | 1990-12-21 | 1992-10-05 | Kommentus Ecogreen Ab | DETAILS CONTAINING TENSID AND COMPLEX PICTURES AND PROCEDURES FOR ITS PREPARATION |
| JPH06506716A (en) * | 1991-04-19 | 1994-07-28 | ザ、プロクター、エンド、ギャンブル、カンパニー | Granular laundry detergent compositions with improved solubility |
| SE9102381L (en) * | 1991-08-16 | 1992-10-19 | Kommentus Ecogreen Ab | MACHINE DISPLAY AND ITS MANUFACTURING |
| ZA934891B (en) * | 1992-07-24 | 1995-01-09 | Colgate Palmolive Co | Synthetic detergent total body care product |
| JP2511776B2 (en) * | 1992-10-02 | 1996-07-03 | 三洋化成工業株式会社 | Detergent composition |
-
1993
- 1993-08-06 CH CH235993A patent/CH686002A5/en not_active IP Right Cessation
-
1994
- 1994-08-05 EP EP94922815A patent/EP0663944A1/en not_active Withdrawn
- 1994-08-05 WO PCT/CH1994/000159 patent/WO1995004804A1/en not_active Application Discontinuation
- 1994-08-05 AU AU72622/94A patent/AU7262294A/en not_active Abandoned
- 1994-08-05 CA CA 2145096 patent/CA2145096A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| CH686002A5 (en) | 1995-11-30 |
| AU7262294A (en) | 1995-02-28 |
| EP0663944A1 (en) | 1995-07-26 |
| WO1995004804A1 (en) | 1995-02-16 |
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| Date | Code | Title | Description |
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| FZDE | Dead |