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
  • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
  • C11D7/22—Organic compounds
  • C11D7/26—Organic compounds containing oxygen
  • C11D7/261—Alcohols; Phenols
  • C11D7/262—Alcohols; Phenols fatty or with at least 8 carbon atoms in the alkyl or alkenyl chain
• • 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
• • 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
  • C11D3/02—Inorganic compounds ; Elemental compounds
  • C11D3/12—Water-insoluble compounds
  • C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
  • C11D3/1246—Silicates, e.g. diatomaceous earth
• • 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
  • C11D3/22—Carbohydrates or derivatives thereof
  • C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
• • 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
  • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
  • C11D7/02—Inorganic compounds
  • C11D7/20—Water-insoluble oxides
• • 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
  • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
  • C11D7/22—Organic compounds
  • C11D7/26—Organic compounds containing oxygen
  • C11D7/261—Alcohols; Phenols
• • 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
  • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
  • C11D7/22—Organic compounds
  • C11D7/26—Organic compounds containing oxygen
  • C11D7/268—Carbohydrates or derivatives thereof

Definitions

• the present invention relates to a scatterable agent for dry cleaning of textiles, especially carpets.
• the subject of the present patent application is therefore a scatterable Dry cleaning agent for textiles, cellulose powder, colloidal Contains silicon dioxide and water.
• the agent contains above in addition, small amounts of surfactant and / or rollable particles made of porous, elastic material.
• the new cleaning agent has an exceptionally high cleaning performance and is characterized by a very low tendency to re-soiling of the textiles cleaned with it. Compared to conventional means is also the tendency to accumulate residues in multiple Use on the same textile material significantly less. Particularly surprising but is the unusual protection of the textile materials during of the cleaning process.
• a good cleaning effect is with scatterable Carpet cleaners are generally only achieved if they are after sprinkling with the help of brushes either manually or mechanically the carpet can be worked in so that it is as possible with all dirt-bearing Fibers come into contact. Brushing in the cleaning powder places special demands on strength due to the transmitted forces the carpet fibers. Surface roughening and loss Of carpet fibers can often not be avoided and can with multiple Use lead to visible damage to the textile material. This with all conventional means to a greater or lesser extent detectable damage to the textile material occurs when using the invention Funds on a much smaller scale.
• the cellulose powders suitable for the agents according to the invention are produced from commercially available cellulose, which is generally obtained from parts of plants, in particular from wood, by comminution with the aid of mechanical and / or chemical processes. Such powders, which are colorless and almost free of lignin and other impurities originating from the plant material, are commercially available in various finenesses.
• the finer qualities which have an average fiber length in the range from 50 to 400 micrometers, are preferably suitable.
• the average fiber thickness for these qualities is usually between 10 and 50 micrometers.
• the particle size of the cellulose powder can also be determined using a sieving method, for example using air jet sieving in accordance with DIN 53734.
• Cellulose powder which has the following particle size distribution (according to the aforementioned method) is therefore also preferred: less than 32 ⁇ m 40 ⁇ 7% by weight between 32 and 71 ⁇ m 35 ⁇ 5% by weight between 71 and 200 ⁇ m 24 ⁇ 4% by weight over 200 ⁇ m Max. 1% by weight
• Cellulose powder is preferably used in the agents according to the invention, those made from wood cellulose, especially hardwood cellulose were.
• a particularly preferred cellulose type is beech wood cellulose.
• those qualities are special preferred, which is done in a technically simple manner solely by mechanical means, i.e. by grinding.
• the proportion of cellulose powder in the agent according to the invention is preferably 36 to 55% by weight, in particular 39 to 52 wt .-%, based on the finished agent.
• the agents according to the invention contain colloidal silicon dioxide, also referred to as colloidal silica, as the second essential active ingredient.
• This material is commercially available as a colloidal aqueous solution with various concentrations, the silica particles being mostly stabilized in the solution by cationic or anionic surface charge.
• the solutions can contain further inorganic materials, in particular alkali and soluble salts. Examples of suitable commercial products are the types Ludox (R) and Syton (R) from Du Pont and Levasil (R) from Bayer.
• the solutions contain the silica in the form of mostly spherical individual particles which are hydroxylated on the surface and the size of which is in the majority of cases between about 7 and about 50 nanometers.
• colloidal silica solutions dry on their own, depending on the particle size, solids with specific surfaces (BET method) between 100 and 300 m 2 / g result.
• the colloidal silicas are preferably added to the cellulose powder and the other constituents in the form of their colloidal solution. Those colloidal silicas whose individual particles are stabilized by anionic surface charges and which in particular contain sodium ions as counterions are particularly preferred.
• the amount of colloidally dissolved silicon dioxide in the agents according to the invention is preferably 0.1 to 10% by weight, in particular 1.5 to 5% by weight, calculated as an anhydrous active substance and based on the complete agents according to the invention.
• the Agents according to the invention also other powdered adsorbents, such as them are known per se for such dry cleaning agents, if this is desirable to achieve special additional effects.
• adsorbents are bentonite, diatomaceous earth, zeolite and starch and plastic foam powder, such as ground polyurethane foam.
• additional adsorbent which also acts as a volume generator, ground foam glass (perlite) has proven itself. The amount of this additional adsorbent is chosen in any case so that the Properties of the funds can not be changed adversely. Your salary is therefore always below the content of the agents according to the invention Cellulose powder, preferably it is less than 50% by weight, in particular less than 30 wt .-%, based on the content of cellulose powder.
• the agents according to the invention contain in the simplest case, only water as an impregnating liquid.
• the amount of this Liquid is measured so that it is still from the solid components the means, d. that is, especially from cellulose powder and thus the spreadability of the funds is guaranteed.
• the water content, which results from the amount of water added during production and the water already contained in the raw materials is preferably 35 to 70, especially 40 to 60 percent by weight.
• the soaking liquid can also, if for special reasons It seems appropriate to contain other auxiliaries and additives, for example for increasing the cleaning effect or preservation of the finished agent are advantageous.
• the liquid contain organic solvents. Suitable as organic solvents both water-miscible and water-immiscible solvents, as far as they do not attack the textiles and are sufficiently volatile are in order after applying the agent to the textiles in the desired Time to evaporate. Furthermore, the choice of solvents to ensure that they are sufficiently high in the finished product mixture Have flash points and are toxicologically safe.
• Alcohols for example Isopropanol, acetone, ethers of mono- and diethylene glycol and mono-, di- and Tripropylene glycol with boiling points between 120 ° C and petrol with a boiling range of 130 to 200 ° C, as well as mixtures of these solvents.
• Monoalcohols with 2 to 3 carbon atoms and their are preferred Mixtures used.
• the proportion of organic solvents is usually not more than 20% by weight, in particular 2 to 10% by weight on all detergents.
• the agents according to the invention can be surfactants as cleaning-active Contain additives, these surfactants preferably from the classes the anionic and nonionic surfactants. While already without Excellent surface cleaning can be achieved by adding surfactants the addition of surfactants improves the removal of fatty stains will. In general, a surfactant addition of up to 10% by weight is sufficient. out; the agents preferably contain 0.05 to 5% by weight, in particular 0.1 up to 3% by weight, based on the total weight of the agent, of surfactants. Out of the large number of known surfactants, such substances are particularly suitable, which together with the contained adsorbents and optionally other non-volatile components of the agent into a solid, dry brittle residue.
• Suitable nonionic surfactants for the agents according to the invention in particular addition products of 1 to 30, preferably 4 to 15 mol Ethylene oxide or mixtures of ethylene oxide and propylene oxide to one mole a compound with 10 to 20 carbon atoms from the group of alcohols, Alkylphenols, carboxylic acids and carboxamides.
• a compound with 10 to 20 carbon atoms from the group of alcohols, Alkylphenols, carboxylic acids and carboxamides are well suited also the condensation products known under the name alkyl glycosides from reducing sugars and long-chain alcohols.
• addition products of ethylene oxide with long-chain are preferred primary or secondary alcohols, such as.
• B. fatty alcohols or oxo alcohols as well as the alkyl polyglucosides composed of glucose and fatty alcohols with 1 to 3 glucose units per molecule and 8 to 18 carbon atoms in Alkyl group.
• Suitable anionic surfactants are, in particular, those of sulfate or Sulfonate type, but other types such as soaps, long chain N-acyl sarcosinates, Salts of long chain sulfosuccinic acid esters or salts of ether carboxylic acids, such as those obtained from long-chain alkyl or alkylphenyl polyglycol ethers and chloroacetic acid are available.
• the anionic surfactants are preferably used in the form of the sodium salts, however, the lithium salts can also offer advantages.
• Particularly suitable surfactants of the sulfate type are the sulfuric acid monoesters of long-chain primary alcohols of natural and synthetic origin with 10 to 20 carbon atoms, ie of fatty alcohols, such as, for. B. coconut fatty alcohols, tallow fatty alcohols, oleyl alcohol or the C 10 -C 20 oxo alcohols and those of secondary alcohols of these chain lengths.
• the sulfuric acid monoesters of the aliphatic primary alcohols, secondary alcohols or alkylphenols ethoxylated with 1 to 6 mol of ethylene oxide come into consideration.
• These surfactants are also known as ether sulfates. Sulfated fatty acid alkanolamides and sulfated fatty acid monoglycerides are also suitable.
• the surfactants of the sulfonate type are primarily sulfosuccinic acid monoesters and diesters with 6 to 22 carbon atoms in the alcohol parts, the alkylbenzenesulfonates with C 9 -C 15 -alkyl groups and the esters of alpha-sulfofatty acids, e.g. B. the alpha-sulfonated methyl or ethyl esters of hydrogenated coconut, palm kernel or tallow fatty acids.
• alkanesulfonates which are obtainable from C 12 -C 18 -alkanes by sulfochlorination or sulfoxidation and subsequent hydrolysis or neutralization or by bisulfide addition to olefins
• olefinsulfonates which are mixtures of alkene and hydroxyalkanesulfonates and disulfonates, such as they are obtained, for example, from long-chain monoolefins with a terminal or internal double bond by sulfonation with gaseous sulfur trioxide and subsequent alkaline or acidic hydrolysis of the sulfonation products.
• Particularly preferred surfactants are the olefin sulfonates, which are preferably in Amounts of 0.1 to 1 wt .-% are used in the recipes, in particular but the fatty alcohol sulfates and fatty alcohol ether sulfates, which are preferred be used in amounts between 0.1 and 5 wt .-%.
• the agents of this invention can other auxiliary materials common in textile and carpet cleaning agents and additives in a small amount.
• auxiliary materials common in textile and carpet cleaning agents and additives in a small amount.
• examples of such agents are antistatic components, optical brighteners, re-soiling reducing substances, improving spreadability and spreadability Additives, preservatives and perfume.
• antistatic components e.g., antistatic, optical brighteners, re-soiling reducing substances, improving spreadability and spreadability Additives, preservatives and perfume.
• waxes or oils e.g., a waxes or oils to bind dust to add.
• these auxiliaries and additives as a whole not more than 5% by weight used; preferably the content is not more than 2% by weight, based on the total agent.
• auxiliary As a particularly preferred auxiliary are in the invention Detergents larger rollable particles made of porous elastic material to look at, which consist in particular of sponge material.
• This Particles have a longest dimension between about 1 and 50, preferably between about 1 and 10 mm, the dimensions in the other two Spatial directions that are perpendicular to each other and along this length, at least 10%, in particular at least 20% of this greatest length.
• These rollable particles can be regular or act irregularly shaped bodies. It is crucial that the form is so is designed that the body when incorporating the carpet cleaning agent can roll under the brush passed over the carpet.
• the rollable particles can consist of different materials. Rollable particles that predominantly up to completely made of viscose, natural sponge or open-pored plastic foam consist. It is preferable to produce the rollable particles from larger pieces of material that are cut or ground be crushed to the desired size. Foamed is preferred Material, nonwoven or fabric, used as the starting material. In a The rollable particles are particularly preferred from viscose sponge flakes.
• the rollable particles combine during the cleaning process with fluff and fibers that have deposited on the carpets and can then be easily removed from the carpet surface along with these will.
• the content of rollable particles can in the invention Be relatively small, since only a few particles are sufficient, to achieve the desired effect. So the share of rollable is Particles in the agents preferably about 0.1 to 10 wt .-%, in particular 0.1 to 1 wt .-%, based on the total agent.
• the preparation of the agents presents no problems, so that technically simple, mostly one-step processes can be used.
• simple mixing devices such as paddle or drum mixers are used, in which cellulose powder and possibly other solid components submitted and then moving with the liquids, if necessary contain other components dissolved, sprayed.
• cellulose powder and possibly other solid components submitted and then moving with the liquids, if necessary contain other components dissolved, sprayed.
• Mechanics and composition can be used in this way finely divided or in more or less agglomerated form but the composition always ensures that even the agglomerated forms on the textiles without major mechanical Effort disintegrate easily.
• flaky agglomerates the flowability of the agents can be dampened up to very hesitant flowing products, as preferred for certain applications will.
• the bulk density of the agents can be in the manufacturing process by To a certain extent influence the choice of more or less compact agglomerates.
• the agents usually have bulk densities in the range of 200 up to 350 g / l, with the result that relatively large volumes per Area unit can be applied. This makes it easier if the remedies are sprinkled on carpets by hand, an even one Distribution.
• the cleaning of the textiles and carpets takes place in such a way that the cleaning agents according to the invention are sprinkled onto the textiles manually or with the aid of a suitable scattering device and then rubbed into the textiles more or less intensively, for example with the aid of a sponge or a brush.
• training times 0.5 to 2.5 minutes, preferably 0.5 to 1.5 minutes per square meter are chosen.
• the textiles are allowed to dry until the cleaning agents that combine with the dirt have turned into dry residues. These residues are then removed from the textiles mechanically, for example by brushing or vacuuming.
• 2 to 150 g / m 2 are used by the agents according to the invention depending on the fullness of the textiles and depending on the degree of soiling, but larger amounts can also be applied in places to remove individual stains.
• Application rates of 10 to 100 g / m 2 are customary for cleaning carpets.
• the entire process can be carried out largely manually, for example in the household, but there is also the possibility of rubbing in and, if necessary, further steps using suitable machines, for example combined spreading and brushing machines, so that the process is equally suitable for use suitable in the commercial sector.
• Cellulose powder and optionally viscose flakes were placed in a paddle mixer submitted and premixed.
• the aqueous was separated Cleaning liquid from the other components without the colloidal silica made in a mixing container. This liquid was then sprayed onto the adsorbent while moving the paddle mixer further, before the silica solution was then sprayed on. It in all cases, slightly damp but free-flowing products were created.
• the cellulose powder used was the Arbocel (R) B 800 X from J. Rettenmaier & Söhne, which, according to the manufacturer, has an average fiber length of 200 ⁇ m and an average fiber thickness of 20 ⁇ m, and the following sieving parameters for air jet sieving: less than 32 ⁇ m 40% by weight less than 71 ⁇ m 75% by weight less than 200 ⁇ m 99.5% by weight
• Ludox HS 40 (R) from Du Pont was used as colloidal silica in the examples. It is a colloidal aqueous solution with 40% by weight SiO 2 , in which the silica particles are negatively charged and stabilized with sodium ions.
• the viscose flakes used in some examples were a product of the company Beli-Chemie GmbH, which can be used as Suction flakes for absorbing spilled liquids is offered.
• the Material has a bulk density of approximately 90 g / l.
• the cleaning performance was checked on pieces of carpet, which were provided with artificial soiling.
• carpet material served a light gray polyamide loop carpet that was in pieces of size 122.5 x 79 cm in a laboratory dirt drum with the addition of 1500 g Steel balls for 30 minutes with 15 g of test soil from the laundry research institute Krefeld (consisting of 85% by weight of the screened content a vacuum cleaner bag and 15% by weight from a standard mixture Kaolin, quartz powder, iron oxide and soot).
• Krefeld Consisting of 85% by weight of the screened content a vacuum cleaner bag and 15% by weight from a standard mixture Kaolin, quartz powder, iron oxide and soot.
• the piece of carpet was then suctioned off thoroughly and for further experiments in three evenly sized pieces about 40 cm wide divided.
• the cleaning tests were carried out on partial areas of approximately 0.25 square meters on the soiled carpet pieces in such a way that 25 g of cleaning powder were sprinkled uniformly and then worked into the area by brushing.
• a medium-hard brush with polypropylene bristles was used as the tool, with which the surface was worked evenly with strong lines from different directions for about 25 seconds.
• the evaluation was carried out using the Micro Color color difference measuring device from Dr. Long using the CIELAB method (DIN 6074).
• the three-dimensional color representation in the form of the L *, a *, and b * diagram is used, the brightness (L *), also known as the gray value, being located on the vertical axis of the three-dimensional color body.
• the cleaning result for the individual example formulations is indicated by how many units the value L * was determined lighter or darker than when cleaning with agent A used as standard.
• Tables 1 to 3 below show the composition of the individual agents used for the experiments in percentages by weight, the information relating to active substance. The excellent effectiveness of agents 1 to 15 according to the invention is evident from the results.
• Examples A B 1 2nd 3rd 4th 5 Cellulose powder 43.0 50.0 52.0 43.0 43.0 43.0 46.0 colloidal SiO 2 1.60 2.40 2.40 3.20 3.20 C 12/18 fatty alcohol sulfate sodium (Texapon (R) K12) 6.00 1.00 1.00 3.00 1.00 2.00 Olefin Sulfonate Na (Hostapur (R) OS) 0.80 Ethanol 2.00 7.00 7.00 7.00 4.00 Low-aromatic petrol (Isopar (R) M) 1.50 Viscose flakes 0.25 0.25 0.25 0.25 0.25 0.25 0.25 Water, perfume, preservatives 54.7 43.75 43.15 46.35 44.35 45.55 44.55 Cleaning, L 0 -1.3 0.4 1.4 0.5 2.0 1.1 Re-

Landscapes

• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Engineering & Computer Science (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Wood Science & Technology (AREA)
• Organic Chemistry (AREA)
• Health & Medical Sciences (AREA)
• Emergency Medicine (AREA)
• Inorganic Chemistry (AREA)
• Molecular Biology (AREA)
• Detergent Compositions (AREA)
• Chemical Or Physical Treatment Of Fibers (AREA)
• Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=6521189

Family Applications (1)

Country Status (6)

Families Citing this family (14)

Family Cites Families (9)

• 1994
  • 1994-06-22 DE DE4421784A patent/DE4421784A1/de not_active Withdrawn
• 1995
  • 1995-06-13 EP EP95924222A patent/EP0766725B1/de not_active Expired - Lifetime
  • 1995-06-13 DK DK95924222T patent/DK0766725T3/da active
  • 1995-06-13 US US08/765,859 patent/US5746777A/en not_active Expired - Fee Related
  • 1995-06-13 AT AT95924222T patent/ATE170549T1/de not_active IP Right Cessation
  • 1995-06-13 WO PCT/EP1995/002288 patent/WO1995035358A1/de active IP Right Grant
  • 1995-06-13 DE DE59503446T patent/DE59503446D1/de not_active Expired - Fee Related

Also Published As

Similar Documents

Legal Events