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
  • C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
  • C11D17/041—Compositions releasably affixed on a substrate or incorporated into a dispensing means
  • C11D17/042—Water soluble or water disintegrable containers or substrates containing cleaning compositions or additives for cleaning compositions
  • C11D17/044—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
  • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
  • C11D17/0047—Detergents in the form of bars or tablets
  • C11D17/006—Detergents in the form of bars or tablets containing mainly surfactants, but no builders, e.g. syndet bar
• • 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
  • C11D3/0052—Gas evolving or heat producing compositions

Definitions

• the invention relates to a detergent concentrate for the production of ready-to-use aqueous detergent solutions in detergent storage tanks of cleaning machines, in particular high-pressure cleaners, spray extraction devices or the like.
• Previously known cleaning agent concentrates are either present in larger containers in highly concentrated aqueous solution, in some cases also in portions, or are offered packaged in powder or tablet form.
• the concentrated form of the cleaning agents is becoming more and more important compared to the sale of ready-to-use cleaning agent solutions, since a large part of the storage capacity and transport capacity as well as packaging material can be saved by selling the concentrates.
• detergent concentrates have the disadvantage that they require greater care in use so that the operators of the respective cleaning machines do not come into contact with the concentrate.
• the child-safe packaging of the cleaning agent concentrates is similarly problematic.
• the object of the invention is to propose a cleaning agent concentrate which can be handled easily and without endangering people, is easy to store and sufficiently robust for handling.
• This object is achieved according to the invention in a cleaning agent concentrate of the type described in the introduction in that the cleaning agent concentrate comprises a constituent which releases gas in contact with water and in that the cleaning agent concentrate is packaged in portions in a water-soluble envelope.
• a particular problem in the provision of a cleaning agent concentrate according to the invention results from the orientation of the cleaning agent concentrate for use in cleaning agent storage tanks of cleaning machines, in particular high-pressure cleaners and spray extraction devices or the like, in which solid particles have to be avoided with great care remain in the ready-to-use cleaning agent solutions, which lead relatively quickly to the clogging of metering devices, spray nozzles, etc. or at least impair the cleaning action of the machine.
• Water-soluble coatings for washing additives for washing textiles are known per se (cf. DE-A 34 15 880).
• water-soluble envelopes in the form of bags are used in order to increase the washing performance of detergents which contain so-called bleach activators to increase the bleaching effect and which increase the bleaching effect of per compounds, before the ingress of moisture and thus before premature deactivation protect the bleaching effect.
• bleach activators to increase the bleaching effect and which increase the bleaching effect of per compounds, before the ingress of moisture and thus before premature deactivation protect the bleaching effect.
• the coating has time to dissolve in the washing machine during the entire washing process, so that the problems to be expected in connection with high-pressure cleaners, spray extraction devices or the like are completely irrelevant here.
• the dissolving times which are given in the prior art for the washing additives in this connection, are at least 15 minutes at a temperature of 30 ° C. for the safe and complete dissolution of the washing additives. It must be taken into account that the washing liquor at Washing process is constantly kept in motion, which supports the dissolution of the covering to a considerable extent. In the fields of use provided for the cleaning agent concentrates according to the invention, water is often used at a temperature of only 15 to 18 ° C., with the result that significantly longer dissolution times would have to be observed for safety reasons.
• This gas-releasing component has the result that, as soon as the detergent concentrate inside the casing comes into contact with water, i.e. when the first leak in the casing is formed, gas is released which inflates and finally blows up the casing and thereby completely exposes the detergent concentrate to the surrounding water.
• the increased gas development that occurs leads to a stirring effect which greatly accelerates the dissolution of the water-soluble coating, but also of the other components of the concentrate.
• the detergent concentrates coated in portions according to the invention can be placed together with the coating in the cleaning tank, into which either water to the extent of the desired cleaning agent solution has already been placed or into which such a quantity of water is fed after the cleaning agent concentrates according to the invention have been introduced. Because of the coating, the detergent concentrate can be present in highly concentrated form.
• the detergent concentrates coated in portions according to the invention also have the advantage that the detergent can be metered precisely for predetermined tank contents, so that an optimum cleaning effect can be achieved with minimal use of detergent. Exact dosing is no longer a problem even for inexperienced consumers.
• the cleaning agent concentrate can be presented both in liquid, viscous or dry form, care being taken in the case of liquid or flowable form. the must that the detergent concentrate does not attack the water-soluble coating and create leaks.
• the concentrate is preferably used as a dry substance.
• the dry substance can be packed in powder form or, and this is preferred, in tablet form in the water-soluble casing.
• the tablet form has the advantage over the loose powder form that it is even more compact and can be combined more easily into larger containers.
• the casing made of water-soluble material can be a water-soluble coating applied to the tablets.
• the wrapper will preferably be a type of film packaging, the film again being preferably transparent and thereby allowing the condition of the tablets and / or powder to be visually checked.
• Envelopes are advantageous, for example, in which a deep-drawn packaging lower part with recesses for receiving the portioned detergent concentrate, in particular in tablet form, is provided, whereupon the lower part is sealed with a cover film.
• the casing can be shrunk onto the concentrate in a further step by heat treatment.
• the film packaging is preferably first loosely placed around a tablet and welded and then shrunk onto the cleaning agent concentrate, so that there is close contact between the film packaging and the cleaning agent concentrate.
• This contact as well as the coating applied to the tablets ensure that the dissolving process takes place at the greatest possible speed, since as soon as a leak is formed in the casing, the internal cleaning agent concentrate immediately comes into contact with the outside. water. This is followed by a practically instantaneous bursting of the casing by the gas released from the detergent concentrate or its gas-releasing component.
• Any water-soluble polymer material which forms films, in particular with thicknesses of e.g. 10 to 100 ⁇ m, can be processed.
• Suitable are e.g. Gelatin-based films, although in some cases their limited storage stability can cause problems.
• the coating is preferably based on water-soluble polyvinyl alcohol or derivatives thereof or, for example, PVA / vinyl acetate resin blends or mixtures with other polymers, such as e.g. Polyacrylic acid (see e.g. DE 31 48 931 C) is produced.
• PVA / vinyl acetate resin blends or mixtures with other polymers such as e.g. Polyacrylic acid (see e.g. DE 31 48 931 C) is produced.
• PVA / vinyl acetate resin blends or mixtures with other polymers such as e.g. Polyacrylic acid (see e.g. DE 31 48 931 C) is produced.
• PVA / vinyl acetate resin blends or mixtures with other polymers such as e.g. Polyacrylic acid (see e.g. DE 31 48 931 C) is produced.
• PVA / vinyl acetate resin blends or mixtures with other polymers such as e.g. Polyacrylic acid (see e.g.
• the PVA material can be selected in such a way that, after dissolution in the water, it has a cleaning-supporting effect in that the dissolved PVA material increases the dirt-carrying capacity of the further cleaning agent components.
• the gas-releasing constituent of the detergent concentrate can be present in the detergent concentrate in a proportion of up to 90% by weight or more, based on the total weight of the detergent concentrate. Frequently, however, substantially smaller proportions of the gas-releasing constituent are sufficient to ensure an adequate stirring action and thus dissolution rate for the coating. With additions below approx. 20% by weight, depending on the nature of the gas-releasing constituent, the stirring action in the surrounding rice is sometimes insufficient. more - get the solvent solution. At least 30% by weight of the gas-releasing component is preferably used.
• the gas releasing component should normally develop 5 liters of gas or more per 100 g of detergent concentrate. Preference is given to admixing the gas-releasing constituent, so that a gas evolution of about 7 1 to about 15 1 per 100 g of detergent concentrate is observed.
• a gas-releasing component is preferably used, in which the released gas is carbon dioxide.
• carbon dioxide-releasing constituents are preferably used which comprise a water-soluble acid and a water-soluble carbonate, the acid preferably being selected from citric acid in anhydrous form or its monohydrate form or acid salts thereof and the carbonate preferably being selected from sodium carbonate and Sodium bicarbonate.
• the gas-releasing component is preferably selected so that it releases cleaning-assisting substance in the gas-releasing reaction, in particular complex-forming ligands. From this point of view too, citric acid is preferably used as the water-soluble acid in the gas-releasing system described above.
• the cleaning-supporting effect of the substances released in the gas elimination reaction can, in certain cases, for example in the case of sanitary cleaners, be completely sufficient in the cleaning effect, so that it is entirely conceivable within the scope of the present invention to use the contents of the casing exclusively or essentially to be formed exclusively from the gas-releasing component. If the material forming the covering can then further increase the dirt-carrying capacity of the cleaning solution after its dissolution, such an embodiment is even more versatile.
• citric acid is preferably used in a molar ratio to hydrogen carbonate of at least 1: 3 or in a molar ratio to the carbonate component of at least 2: 3.
• the detergent concentrate according to the invention preferably comprises as washing-active substances up to 40% by weight of non-ionic surfactants.
• non-ionic surfactants are alkyl polyethylene glycol ethers based on linear C 10 -C 1 g fatty alcohols, C 1 3-C 15 oxo alcohols reacted with ethylene oxide, liquid alkyl polyethylene glycol ethers based on fatty alcohol, alkyl glycosides and alkyl polyglycosides.
• the detergent concentrate can comprise up to 40% by weight of anionic surfactants as washing-active substances, preferred anionic surfactants being sodium alkylbenzenesulfonate and fatty alkyl ether sulfates.
• the cleaning agent concentrate can contain up to 10% by weight of binder as tablet auxiliary, and in the event that the tablets are packaged with a covering in the form of a coating of a thermoformed film with deco film or a shrink-wrapped film are already, relatively small proportions of binder are sufficient to give, together with the casing, a sufficiently stable tablet shape which sufficiently withstands the mechanical stress from production, packaging, transportation to use on site in the cleaning device.
• suitable binders are polyvinyl pyrrolidone, polyethylene glycols and carboxymethyl cellulose.
• the cleaning agent concentrate can contain up to 40% by weight of builder, in particular in the form of phosphates, silicates, carboxylates and / or NTA.
• the cleaning agent concentrate can contain up to 5% by weight of foam inhibitors, in particular in the form of silicone oils, phosphoric acid esters and paraffin oils.
• solubilizers which can be up to 20% by weight, in particular in the form of sodium cumene sulfonate.
• the cleaning agent concentrate in cleaning agents can contain the usual fragrances, dyes and / or fillers.
• the cleaning agent concentrate according to the invention is particularly suitable for use in the production of ready-to-use cleaning agent solutions in the cleaning agent storage tanks of high-pressure cleaners, spray extraction devices, window washer devices, etc.
• FIG. 1 shows a perspective view of an embodiment of a cleaning agent concentrate according to the invention
• Figure 2 is a side view of the embodiment of
• FIG. 1 shows an embodiment of a cleaning agent concentrate according to the invention, designated overall by the reference numeral 10, hereinafter referred to briefly as a tablet, which comprises a water-soluble casing 12 and, in the casing, a detergent concentrate compact 14.
• the covering 12 lies tightly against the compact 14 and is preferably shrunk onto it. In this way, as soon as a leak has occurred somewhere in the casing 12, the water can directly hit the compact 14 and thus start the gas elimination reaction with the subsequent bursting open of the casing 12.
• An alternative which is equivalent to shrinking on the film is provided by packaging the tabletted detergent concentrates in tablet or powder form in the depressions of a thermoformed film, a plurality of regularly arranged depressions initially being formed in a film web to accommodate the detergent concentrate portions.
• the detergent concentrate is added in portions to the wells and then sealed with a cover film.
• the individual coated cleaning agent portions can then be separated by a punching or cutting process or grouped in groups in card form, but can be separated, for example, via weakening lines in the thermoforming film, put together to form the sales container and provided with an outer packaging.
• the detergent components contained in the casing it may be achieved by adding foam inhibitors that, on the one hand, only a small foam volume is formed during the dissolving process and when released gas is released, so that the detergent storage tank is not foamed, while the solutions on the other hand, when used in the cleaning devices, can be adjusted to be highly foaming or non-foaming, as desired. All desirable foam effects from high-foaming to non-foaming can thus be set while simultaneously checking the volume of foam formation during the dissolving process of the tablet 10 or the cleaning agent concentrate including the coating in the storage tank.
• the amount of outer packaging made of cardboard, for example, as well as the transport volume and storage volume are reduced by approx. 90% compared to conventional cleaning agents.
• the use of the cleaning agent concentrates according to the invention leaves significantly less waste than that of conventional agents, since not only is the outer packaging dimensioned significantly smaller from the outset, but also because the wrapping of the individual portions of the cleaning agent concentrate Dissolve trates and form a component of the cleaning solution and possibly even strengthen the cleaning effect by increasing the dirt-carrying capacity.
• the pulverulent and solid detergent components are mixed with one another and the liquid detergent components, if any, are sprayed thereon.
• This raw powder can then already be packaged in portions in envelopes, the weight of the portion pack in the range of individual grams being up to several kilograms and more.
• the detergent powder prepared above is pressed into tablets by means of a tableting press in accordance with the predetermined amount.
• the usual tablet sizes are 5, 10, 20 g, etc.
• the tablets are packaged with a water-soluble film and thermally welded and shrink-wrapped, so that the casing 12, as shown in FIGS. 1 and 2, lies closely against the tablet compact 14.
• the usual tablet sizes go up to 1000 g and tablet diameters of up to 30 cm are very easy to handle.
• a film made of PVA material (Vivinol BS10F from Alcam) with a thickness of 40 ⁇ m is used. Similar good results are achieved with Vivinol AS5F (40 ⁇ m thick) from the same manufacturer. Even faster dissolving speeds for the film are obtained with the Vivinol AS15F film, which is only 25 ⁇ m thick.
• the cleaning agent concentrate according to the invention can be used, for example, in the cleaning of cars, motorcycles, garden tools, garden furniture, sports equipment, stone and metal surfaces, glass, porcelain, plastics and painted surfaces.
• the high-pressure cleaner tank is normally filled with one liter of water, two 10 g tablets with the composition of Table 1 are metered in, the dissolution time is waited for a few minutes (in the present example, 4 to 5 minutes at 40 ° C. warm water), and then cleaning can then be started.
• the cleaning liquid formed is metered into the spray jet of the high-pressure cleaner, which can generally be varied from 0-100% for metering in the conventional devices by means of a metering regulating device on the high-pressure cleaning device.
• Another typical application for the cleaning agent concentrates according to the invention is formed by the spray extraction devices, in which, for example, 2 tablets 10 with a weight of 20 g and a recipe as listed in Tables 2 and 3 are mixed with 8 liters of water.
• a tablet of 20 g according to the recipe in Table 2 gives approx. 1.2 1 CO2
• the tablets according to the invention for spray extraction cleaning are produced as above in connection with the high-pressure cleaner tablets.
• the areas of application for the cleaning agents in Tables 2 and 3 are in particular in the field of spray extraction cleaning of textile coverings, blended fabrics and fully synthetic fibers e.g. of carpets, upholstered furniture, car seats etc.
• the spray extraction device tank is filled with the necessary amount of water (8 liters in the previous example).
• the necessary number of detergent tablets is added and after the dissolving time, which lasts only minutes (in the case of the recipe according to Table 2, approx. 10 min in 40 ° C warm water and according to Table 3 approx. 4 min in 40 ° C warm water) with the spray extraction cleaning, in which case the cleaning solution is used in undiluted form.
• a further area of application is that of window washing devices, with tablets of 5 g size preferably being used here because of the normally smaller dimensions of the storage tank.
• the 5 g dosage of the cleaning agent concentrate is sufficient for a quantity of 250 ml of water and is listed in detail in Table 4.
• the dissolution time in water at 30 ° C is 3 min. This 5 g tablet releases approx. 0.6 1 CO 2 ⁇ gas during the dissolving process.
• This cleaning tablet can also be produced as described above in connection with high-pressure cleaning tablets.
• the storage tank of the cleaning device first being refilled with tempered water (in the previous example 250 ml of water), a detergent tablet of 5 g being metered in, a few minutes for dissolving the detergent concentrate according to the invention wait together with the wrapping and then start cleaning.
• the ready-to-use cleaning solutions prepared from the cleaning agent concentrates according to the invention described above have a cold stability of up to 0 ° C. and a heat stability of up to 50 ° C.

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• 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)
• Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
• Saccharide Compounds (AREA)

Priority Applications (8)

Applications Claiming Priority (1)

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Cited By (15)

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Citations (4)

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• 1996
  • 1996-03-22 DK DK96910924T patent/DK0888448T3/da active
  • 1996-03-22 ES ES96910924T patent/ES2151154T3/es not_active Expired - Lifetime
  • 1996-03-22 AU AU53975/96A patent/AU724055B2/en not_active Ceased
  • 1996-03-22 EP EP96910924A patent/EP0888448B1/de not_active Expired - Lifetime
  • 1996-03-22 WO PCT/EP1996/001259 patent/WO1997035955A1/de active IP Right Grant
  • 1996-03-22 DE DE59605732T patent/DE59605732D1/de not_active Expired - Lifetime
  • 1996-03-22 AT AT96910924T patent/ATE195336T1/de active
• 1998
  • 1998-09-18 NO NO984347A patent/NO984347L/no not_active Application Discontinuation

Patent Citations (4)

Non-Patent Citations (1)

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