File Name: light duty and heavy duty liquid detergent compostion .zip
- US5854195A - Light duty liquid cleaning compositions - Google Patents
- Formulating Liquid Laundry Detergents
- On-premise Laundry Chemicals
The present invention relates to aqueous heavy duty liquid laundry detergent compositions containing anionic surfactant, amine oxide semi-polar nonionic surfactant, and fatty acid. The composition is substantially free of alkyl benzene sulfonates. They preferably are clear, homogeneous, and stable liquids.
Greasy and oily soil stains are known to be one of the toughest cleaning problems for consumers in the laundry context. Current commercial laundry products attempt to address this problem through the use of conventional surfactant technology including anionic sulfate or sulfonate surfactants alkyl sulfates, alkyl polyethoxylate sulfates, alkyl benzene sulfonates or nonionic surfactants alcohol ethoxylates, polyhydroxy fatty acid amides. Other attempts have incorporated particular enzymes like lipolytic enzymes into a heavy duty liquid detergent matrix to attack these tough soils and stains.
Anionic surfactants including alkyl sulfates, alkyl polyethoxylate sulfates, alkyl benzene sulfonates are known having been disclosed in, e.
Patent No. Amine oxide semi-polar nonionic surfactants are well known in the detergent field, particularly in the light duty liquid hand-dishwashing area where high-sudsing surfactants are required, having been disclosed in, e. Patent 4,, Pancheri , issued February 23, ; U. Patent 5,, Borland et al , issued December 24, ; and U. Patent 5,,, Borland et al , issued December 10, Fatty acid is a known detergent composition ingredient having been disclosed in, e.
Patent 4,, Wertz et al , issued December 31, However, none of the above patents disclose, alone or in combination, the unique benefits provided by a detergent composition as set forth below. The composition must be substantially free of alkyl benzene sulfonates. The fatty acid component in combination with the amine oxide surfactant provides enhanced cleaning of fabrics, especially in the prescribed molar ratios. The present invention encompasses aqueous heavy duty liquid laundry detergent composition comprising, by weight of the composition:.
Preferred compositions herein comprise the amine oxide surfactant and fatty acid in a molar ratio of from about to about Other preferred compositions further comprise an auxiliary nonionic surfactant, a detergent builder and enzymes. When the composition is used full-strength on these stains before washing in a regular load of wash, i.
The heavy duty liquid laundry detergent compositions herein contain an anionic synthetic surfactant component, amine oxide semi-polar nonionic surfactant, fatty acid, and water as essential ingredients. The anionic surfactant component preferably contains alkyl polyethoxylate sulfates, and may contain other non-soap anionic surfactants, or mixtures thereof.
The composition herein and, therefore the anionic surfactant component, must be substantially free of alkyl benzene sulfonates. Generally speaking, anionic surfactants useful herein are disclosed in U. Useful anionic surfactants include the water-soluble salts, particularly the alkali metal, ammonium and alkylolammonium e.
Included in the term "alkyl" is the alkyl portion of aryl groups. Examples of this group of synthetic surfactants are the alkyl sulfates, especially those obtained by sulfating the higher alcohols Cg-Cjg carbon atoms such as those produced by reducing the glycerides of tallow or coconut oil.
Other anionic surfactants herein are the water-soluble salts of: paraffin sulfonates containing from about 8 to about 24 preferably about 12 to 18 carbon atoms; alkyl glyceryl ether sulfonates, especially those ethers of Cg. Particularly preferred anionic surfactants herein are the alkyl polyethoxylate sulfates of the formula.
Other preferred anionic surfactants are the non-ethoxylated Cj primary and secondary alkyl sulfates. Under cold water washing conditions, i. The anionic surfactant component herein must be substantially free of alkyl benzene sulfonates. Most preferably, the detergent compositions herein contain no alkyl benzene sulfonates.
These include alkylbenzene sulfonates in which the alkyl group contains from about 9 to about 15 carbon atoms, in straight chain or branched chain configuration, e. Especially troublesome are linear straight chain alkylbenzene sulfonates in which the average number of carbon atoms in the alkyl group is from about 11 to The amine oxide surfactant, however, has a stronger affinity to alkyl benzene sulfonates in forming the ion pair complexes than to fatty acid.
In the presence of alkyl benzene sulfonates and fatty acid, the amine oxide surfactant will form ion pairs with the alkyl benzene sulfonates over the fatty acid. The amine oxide semi-polar nonionic surfactant of the present invention comprise compounds and mixtures of compounds having the formula:. The above amine oxides are more fully described in U. Patent 4,, Pancheri , issued February 23, ; U.
Patent 5,,, Borland et al , issued December 10, , all which are incorporated herein by reference. The amine oxide surfactants wherein R 2 or R3 is ethylene oxide or propylene oxide can be produced by a standard oxidation reaction of the corresponding amine. The present invention contain from about 0. Fatty Acid. The fatty acid can also containing from about 1 to about 10 ethylene oxide units in the hydrocarbon chain. Suitable fatty acids are saturated and or unsaturated and can be obtained from nature sources such as plant or animal esters e.
Examples of suitable saturated fatty acids for use in the compositions of this invention include capric, lauric, myristic, palmitic, stearic, arachidic and behenic acid. Suitable unsaturated fatty acid species include palmitoleic, oleic, linoleic, linolenic and ricinoleic acid. Preferred compositions herein comprise the amine oxide surfactant and fatty acid in a molar ratio of from about 2: 1 to about 1 The weight ratio of synthetic anionic surfactant on an acid basis to nonionic surfactant is preferably from about to about , more preferably from about to about These surfactants are more fiilly described in U.
Patents 4,,, Barrat et al. Patent 4,,, Hughes, issued March 26, ; the alkylpolysaccharides in U. Patent 4,,, Llenado, issued January 21, ; and the polyhydroxy fatty acid amide surfactants in Irish Patent Application , published March 28, , all incorporated herein by reference. While all manner of detergent builders known in the art can be used in the present compositions, the type and level of builder should be selected such that the final composition has an initial pH of from about 7. Detergent builders are described in U.
Preferred builders for use in liquid detergents herein are described in U. A particularly preferred builder is citric acid. Enzymes can be included in the formulations herein for a wide variety of fabric laundering purposes, including removal of protein-based, carbohydrate-based, or triglyceride-based stains, for example, and for fabric restoration.
The enzymes to be incorporated include proteases, amylases, upases, and cellulases, as well as mixtures thereof. Other types of enzymes may also be included. They may be of any suitable origin, such as vegetable, animal, bacterial, fungal and yeast origin. In this respect bacterial or fungal enzymes are preferred, such as bacterial amylases and proteases, and fungal cellulases.
Particularly preferred compositions herein contain from about 0. Enzymes are normally incorporated at levels sufficient to provide up to about 5 mg by weight, more typically about 0. Stated otherwise, the compositions herein will typically comprise from about 0. Protease enzymes are usually present in such commercial preparations at levels sufficient to provide from 0. Suitable examples of proteases are the subtilisins which are obtained from particular strains of B.
The preparation of this enzyme and analogous enzymes is described in British Patent Specification No. The Netherlands. The cellulase usable in the present invention include both bacterial or fungal cellulase. Preferably, they will have a pH optimum of between 5 and 9. Suitable cellulases are disclosed in U.
Patent 4,,, Barbesgoard et al, issued March 6, , which discloses fungal cellulase produced from Humicola insolens and Humicola strain DSM or a cellulase producing fungus belonging to the genus Aeromonas, and cellulase extracted from the hepatopancreas of a marine mollusk Dolabella Auricula Solander.
Suitable cellulases are also disclosed in GB-A- 2. Suitable lipase enzymes for detergent usage include those produced by microorganisms of the Pseudomonas group, such as Pseudomonas stutzeri ATCC See also Upases in Japanese Patent Application 53,, laid open to public inspection on February 24, This lipase is available from Amano Pharmaceutical Co. Chromobacter viscosum var. Biochemical Corp.
A wide range of enzyme materials and means for their incorporation into synthetic detergent compositions are also disclosed in U. Patent 3,,, issued January 5, to McCarty et al. Enzymes are further disclosed in U. Patent 4,,, Place et al, issued July 18, , and in U. Patent 4,,, Hughes, issued March 26, , both. Enzyme materials useful for liquid detergent formulations, and their incorporation into such formulations, are disclosed in U.
Patent 4,,, Hora et al, issued April 14, Enzymes for use in detergents can be stabilized by various techniques. Enzyme stabilization techniques are disclosed and exemplified in U. Enzyme stabilization systems are also described, for example, in U. Patent 3,, Calcium ions are generally somewhat more effective than magnesium ions and are preferred herein if only one type of cation is being used.
Additional stability can be provided by the presence of various other art- disclosed stabilizers, especially borate species. See Severson, U. Typical detergents, especially liquids, will comprise from about 1 to about 30, preferably from about 2 to about 20, more preferably from about 5 to about 15, and most preferably from about 8 to about 12, millimoles of calcium ion per liter of finished composition.
This can vary somewhat, depending on the amount of enzyme present and its response to the calcium or magnesium ions. The level of calcium or magnesium ions should be selected so that there is always some minimum level available for the enzyme, after allowing for complexation with builders, fatty acids, etc.
US5854195A - Light duty liquid cleaning compositions - Google Patents
The present invention relates to aqueous heavy duty liquid laundry detergent compositions containing anionic surfactant, amine oxide semi-polar nonionic surfactant, and fatty acid. The composition is substantially free of alkyl benzene sulfonates. They preferably are clear, homogeneous, and stable liquids. Greasy and oily soil stains are known to be one of the toughest cleaning problems for consumers in the laundry context. Current commercial laundry products attempt to address this problem through the use of conventional surfactant technology including anionic sulfate or sulfonate surfactants alkyl sulfates, alkyl polyethoxylate sulfates, alkyl benzene sulfonates or nonionic surfactants alcohol ethoxylates, polyhydroxy fatty acid amides. Other attempts have incorporated particular enzymes like lipolytic enzymes into a heavy duty liquid detergent matrix to attack these tough soils and stains.
Formulating Liquid Laundry Detergents
This application is a continuation in part application of U. This invention relates to a light duty liquid cleaning composition which imparts mildness to the skin and is designed in particular for dishware and which is effective in removing grease soil and in leaving unrinsed surfaces with a shiny appearance. In recent years all-purpose liquid detergents have become widely accepted for cleaning hard surfaces, e.
It is conventional practice, for example, to rate the performance of a liquid dishwashing formulation … View formulation details; Manual Dishwashing Liquid, mild - View formulation details; Mild Dishwashing Liquid - Preservatives : Key biocidal ingredients to Preserve liquid detergents A call to secure their future availability A. Mildness Detergents which have such direct exposure to human skin must be mild. Detergents are commonly available as powders or concentrated solutions. A preferred formulation incorporates a three component mixture: an anionic surfactant, a nonionic surfactant, and an amido amine oxide to provide a detergent … As a detergent … Manuel.
Kanerva's Occupational Dermatology pp Cite as. Household, personal, and industrial products contain detergents which play an important role in everyday life. The most important ingredients of detergents are surfactants which display surface-tension-lowering properties so water can expand to wet surface, increasing washing effectiveness. Chemically, surfactants are amphiphilic molecules with a lipophilic tail and a hydrophilic head.
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On-premise Laundry Chemicals
For those applications where an automated system is appropriate, or powdered products are required, Pariser offers a time tested line of product programs specifically tailored to the safe, effective and economical processing of dress and casual shirt washing applications. Along with a variety of bleach components, Pariser offers effective complex enzyme systems as well as specialized degreasing adjuncts that remove ground in dirt and stains, brighten colors, and sanitize. Finishing agents inclusive of liquid and powder synthetic and natural starches allow for the superior look and feel that shirt processors require in this competitive marketplace. Pariser representatives will tailor appropriate wash formulae that minimize utility and time consumption while providing maximum results and reduced rewash. A highly concentrated liquid alkalinity builder for commercial and institutional laundry applications. A carefully selected blend of citrus terpines, anionic and non-ionic biodegradable synthetic detergents.
ingredients normally found in conventional powder Light duty laundry liquid detergents. Heavy-duty liquid detergents involves a sound.
Handbook of Detergents Formulation Download Books Detergent Formulation - ShinadtDetergent Formulation. Detergents are substances that cut off particles of fat and pus from other fabrics or other objects. The first substance made as a detergent was soap.
The present invention relates generally to a liquid detergent composition and more particularly to a heavy-duty liquid detergent composition having relatively small amounts of anionic surfactants, at least one viscosity-enhancing agent and a liquid carrier, and which is substantially free of nonionic surfactants. Surfactants promote and facilitate the removal of stains and soil from fabrics laundered in wash solutions formed from such liquid detergents and water. Typically, these laundry detergents have both nonionic and anionic surfactant components. Nonionic surfactant components, which are relatively expensive components of liquid detergents, are generally added to detergents to remove stains and soil, particularly to remove oil and grease.