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
  • C11D17/06—Powder; Flakes; Free-flowing mixtures; Sheets
• • 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
  • C11D3/37—Polymers
  • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
  • C11D3/3761—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in solid compositions
• • 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 invention relates to a powdery cleaning agent and a method for producing the same according to the preamble of claims 1 and 2 respectively.
• Such a cleaning agent or manufacturing method is disclosed by British patent application 21 94 972.
• a powder detergent for textile surfaces is known.
• a gel-like polymer mixed with water, cellulose and other active substances is used as the carrier material.
• the gel is formed from a mixture of water, active ingredient solution and cellulose.
• the cellulose (organic particles) form components of the hydrogel former.
• No mechanical cleaning agent is provided there.
• a further disadvantage of this embodiment is that the active ingredients in the gel only have a very small effect on textile fibers to be cleaned, since the active ingredients are dissolved in the interior of the particles.
• US-A-4 440 661 describes a cleaning agent in which the organic fibers are embedded in a resin.
• the production of the cellulose powder is also very wastewater-intensive and, despite the introduction of new pulping processes for the production of cellulose, is extremely polluting.
• a reduction in the cellulose content in known powder detergents leads to products which, when incorporated into a carpet, for example, “filler”, are significantly poorer to clean, are difficult to vacuum and last a long time Require dry periods. The products are then no longer "free-flowing".
• the object of the invention is to provide a powdery cleaning agent for textile surfaces which saves raw materials while achieving the highest possible cleaning performance and at the same time manages without or with only a small proportion of substances classified as hazardous to health or environmentally compatible.
• the highly absorbent, subsequently swollen polymer particles - so-called superabsorbers - are used together with organic fiber particles, which fiber particles are attached to the surface of the polymer particles.
• the highly absorbent, swollen polymer particles create the necessary volume and surface area thanks to a high proportion of water bound in the polymer particles. This can severely limit the consumption of valuable raw materials, especially bleached cellulose.
• the backing material or the absorbent material is fully available to the carpet surface. It tends to agglomerate so that it does not "silt up" in the carpet.
• the organic fiber particles are deposited on the surface of the swollen polymer particles. They are therefore very well distributed and only a small amount of organic fiber particles is required.
• the cleaning agent can be set to "wet” or “dry” in a simple manner, as will be explained in more detail below.
• the polymer particles consist of a polyacrylate.
• a polyacrylate has become known in particular under the trade name “Favor”, sold by Stockhausen, Krefeld.
• Such highly absorbent polymers as also described in the reference “general nonwoven report 4- 1984, pages 178 to 182", can absorb several times their own weight in aqueous liquids. This forms a gel, the nature of which can vary.
• Such highly absorbent polymers do not release the aqueous liquid, ie generally ordinary water that they have taken up, or only to a relatively small extent even under pressure.
• the gel has the nature of a granular mass (caviar structure).
• very small polymer particles with a spherical structure are formed, with a diameter of approximately 10 to 1,000 ⁇ m in the swollen state. This results in a very large surface area.
• the organic fibers can have a diameter of 5 to 30 ⁇ m and a length of 50 to 400 ⁇ m. These are preferably cellulose fibers.
• the procedure is such that water is added to the powder of sodium polyacrylate (or of the polyacrylic acid mentioned) until it is saturated.
• the polyacrylate swells and develops mentioned caviar structure.
• One gram of polyacrylate can absorb many times its weight in water, for example up to 100 g.
• the polyacrylate no longer releases water even under pressure.
• the "wet" setting can be made.
• the swollen polyacrylate is then stirred with the cellulose fibers that attach to the surface of the polyacrylate particles.
• the powder obtained in this way is then mixed with the necessary detergent, usually an aqueous surfactant solution.
• a solvent is optionally added and, if appropriate, further additives such as fragrances.
• Such a powdered cleaning agent can contain 5 to 75 percent by weight of swollen acrylate, preferably 25 to 35 percent by weight. Furthermore, 10 to 50 percent by weight of organic fibers, in addition to cellulose also linters and chemically or mechanically modified cellulose and similar substances. The proportion is preferably between 25 and 35 percent by weight, a cellulose powder with a grain spectrum of 50 to 350 ⁇ m being used. It can also contain about 5 to 35 percent by weight of water, preferably 20 to 25 percent by weight. 0 to 20 percent by weight, preferably again 5 to 15 percent by weight, can be organic solvents, e.g. B. methoxypropanol or aromatic-free gasoline. 0 to 7 percent by weight can be a surfactant or a surfactant mixture.
• organic solvents e.g. B. methoxypropanol or aromatic-free gasoline.
• 0 to 7 percent by weight can be a surfactant or a surfactant mixture.
• anionic, non-ionic, cationic or amphoteric surfactant It is specifically an anionic, non-ionic, cationic or amphoteric surfactant. This proportion is preferably 0.5 to 2 percent by weight. Finally, 0 to 5 percent by weight, preferably 0 to 2 percent by weight, are further customary Auxiliaries and fragrances, such as preservatives, antistatic agents, etc.
• the above formulations for a quantity of 150 kg are produced approximately as follows (values for formulation I in brackets): First the acrylic dispersion is mixed from 0.23 kg (0.04 kg) Favor CT and 44.78 kg (7.46 kg) water. Depending on the desired viscosity of the dispersion, it can also be diluted with water from the active ingredient solution.
• the components of the drug solution [33.43 kg (47.30 kg) water; 7.50 kg (7.50 kg) surfactant solution; 0.08 kg (0.08 kg) defoamer; 0.15 kg (0.23 kg) antistatic; 0.15 kg (0.15 kg) perfume oil; 1.50 kg (1.50 kg) of isopropanol and 0.30 kg (0.30 kg) of preservative] are mixed in a separate tank.

Applications Claiming Priority (4)

Publications (2)

Family

ID=25879888

Family Applications (1)

Country Status (10)

Cited By (1)

Families Citing this family (17)

Family Cites Families (5)

• 1989
  • 1989-08-24 DE DE3927975A patent/DE3927975A1/de not_active Withdrawn
• 1990
  • 1990-03-26 DK DK90105745.5T patent/DK0392248T3/da active
  • 1990-03-26 ES ES90105745T patent/ES2064510T3/es not_active Expired - Lifetime
  • 1990-03-26 DE DE59007418T patent/DE59007418D1/de not_active Expired - Fee Related
  • 1990-03-26 EP EP90105745A patent/EP0392248B1/de not_active Expired - Lifetime
  • 1990-03-26 AT AT90105745T patent/ATE112799T1/de not_active IP Right Cessation
  • 1990-03-27 CA CA002013120A patent/CA2013120A1/en not_active Abandoned
  • 1990-03-29 AU AU52371/90A patent/AU5237190A/en not_active Abandoned
  • 1990-04-03 KR KR1019900004558A patent/KR970007576B1/ko not_active IP Right Cessation
  • 1990-04-12 JP JP2095225A patent/JP2802319B2/ja not_active Expired - Fee Related
• 1995
  • 1995-08-10 HK HK128395A patent/HK128395A/xx not_active IP Right Cessation

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