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
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/02—Anionic compounds
  • C11D1/04—Carboxylic acids or salts thereof
  • C11D1/10—Amino carboxylic acids; Imino carboxylic acids; Fatty acid condensates 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
  • C11D1/88—Ampholytes; Electroneutral 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
  • C11D3/0005—Other compounding ingredients characterised by their effect
  • C11D3/0031—Carpet, upholstery, fur or leather cleansers

Definitions

• the present invention relates to a detergent composition suitable for use in the cleaning of pile fabrics such as carpets, rugs, upholstery, tapestries, cushion and other fabric coverings for floors, walls and furniture.
• the pile fabrics For removal of the dirt and soil which are present in such pile fabrics, the pile fabrics have been treated by dry-cleaning or by wiping with a floor-cloth wetted with a detergent solution.
• said detergent composition is dissolved in water and the resulting aqueous solution is applied to the surface of the fabrics to be cleaned by suitable means. Thereafter, by moving a brushing appliance backwards and forwards on the fabrics, rich foams are produced. The dirt and water soluble or oily soil are loosened and occluded in the foam, and then the produced foams are wiped off or sucked up to achieve the cleaning purpose.
• the detergent of the present invention forms a crystalline non-sticky deposit on the fabrics, which deposit can be readily removed by use of a vacuum cleaner, a sweeper or some similar equipment. Therefore, the cleaning of the pile fabrics may be conveniently achieved without removing them from their usual position. Also, the detergent of the present invention gives high brightness and smoothness to the cleaned fabrics without impairing their elasticity.
• the similar alkali metal salts of N-acyl acidic amino acids having acyl groups other than lauroyl and stearoyl groups, such as N-myristoyl or N-palmytoyl are not suitable as detergents for pile fabrics because the monoalkali metal salts are hardly soluble in water while the dialkali metal salts are soluble in water but are deficient in foaming property.
• the monolithium, monosodium .and monoammonium salts of N-lauroyl acidic amino acids and the dilithium, disodium and diammonium salts of N-stearoyl acidic amino acids of the present invention have good water solubility and good foaming power that are comparable to the commercially available control samples and are markedly superior to the control samples with respect to non-stickiness of the powdery particles formed when a detergent solution was evaporated to dryness. Also, detergent solutions for cleaning pile fabrics are required to permeate the fabrics as little as possible, unlike the detergent materials for use in cleaning clothes. In view of this point, dilithium, disodium and diammonium salts of N-stearoyl acidic amino acids are superior compared with the control samples.
• EXAMPLE 2 2.9 kg. of the diammonium salt of N-hydrogenated tollowyl L-glutamic acid and 0.7 'kg. of ditriethanolamine salt of N-cocoyl** L-glutamic acid were dissolved in water to prepare 18 l. of detergent solution. This solution was diluted with water to about 1% and then used to treat soiled carpets as in Example 1. The carpets were allowed to dry, the powdery deposit retained on the carpets was less sticky than a deposit of a control sample, and removed completely by a vacuum cleaner.
• EXAMPLE 3 EXAMPLE 4 125 g. of monosodium N-lauroyl-L-aspartate and 75 g. of monolithium N-lauroyl-DL-aspartate were dissolved in water to prepare 1 l. of solution. The solution was diluted with water to 1%. Soiled carpets were treated with this solution in the same manner as in Example 3. After drying, the residue of detergent retained on the carpets was non-sticky and in powdery form and was easily removed by a vacuum cleaner. The carpets treated thus were well cleaned with brightness and softness.
• EXAMPLE 5 A mixture of 100 g. of monolithium N-distilled cocoyl- L-glutamate, 90 g. of dilithium N-distilled cocoyl-L-glutamate and g. of lithium lauryl sulphate was dissolved in water to prepare 1 l. of solutidn. The solution was diluted with Water to 1% and then applied to the soiled carpets as in Example 3. After drying, the powdery detergent retained on the carpets was good and the carpets became clean.
• EXAMPLE 6 A mixture of 200 g. of diammonium N-semi-hydrogenated tallowyl-L-glutamate, g. of sodium-DL-alanimate and g. of triethanolamine salt of lauryl sulphuric acid was dissolved in water to prepare 1 l. of solution. The solution was diluted with water to 1% and then apthe carpet became clean.
• Hydrogenated tallowyl means acyl residue of hydrogenated tallow fatty acid.
• Cocoyl means the acyl residue of coconut oil fatty acid.
• the soiled carpet was treated with the solution as in Example 3.
• the carpet cleaned had a luster and became clean.
• EXAMPLE 8 30 kg. of powdery monosodium N-cocoyl-L-glutamate was mixed with 0.6 kg. of powdery sodium lauryl sulphate and the mixture was dissolved in warm water of 40 C. to prepare 150 1. solution. The solution was diluted with water to 1%, and then the soiled carpet was treated with the solution according to the same manner as in Example 1. The carpet was allowed to dry and the powdery state of detergent retained on the carpet was good. The carpet became clean.
• a method of cleaning a fabric of soil which comprises applying to said fabric a foam of an aqueous solution of a monoalkali metal or monoammonium salt of N-lauroyl glutamate or N-lauroyl aspartate, or of a dialkali metal or diammonium salt of N-stearoyl glutamate or N-stearoyl aspartate, the alkali metal in said salts being lithium or sodium, the amount of said foam being sufficient to occlude said soil, and thereafter removing said foam from said fabric.

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)
• Detergent Compositions (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=12751665

Family Applications (1)

Country Status (5)

Cited By (1)

Families Citing this family (2)

• 1970
  • 1970-06-01 JP JP45046596A patent/JPS4833962B1/ja active Pending
• 1971
  • 1971-05-26 GB GB07345/71A patent/GB1293887A/en not_active Expired
  • 1971-05-28 DE DE19712126588 patent/DE2126588A1/de active Pending
  • 1971-05-28 US US00148236A patent/US3761223A/en not_active Expired - Lifetime
  • 1971-06-01 FR FR7119801A patent/FR2093966B1/fr not_active Expired

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