Classifications

• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
  • D06F39/02—Devices for adding soap or other washing agents
  • D06F39/024—Devices for adding soap or other washing agents mounted on the agitator or the rotating drum; Free body dispensers
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
  • A47L15/00—Washing or rinsing machines for crockery or tableware
  • A47L15/42—Details
  • A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
  • A47L15/4445—Detachable devices
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
  • B65D81/32—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging two or more different materials which must be maintained separate prior to use in admixture
  • B65D81/3261—Flexible containers having several compartments
  • B65D81/3272—Flexible containers having several compartments formed by arranging one flexible container within another
• • 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

Definitions

• the present invention relates to a product for the release of treatment agents into the washing liquid of an automatic washing machine or dishwasher in the form of a bag, which comprises at least one chamber containing a treatment agent.
• Conventional cleaning agents for dishwashers are widely known in the prior art. They consist essentially of the components alkali tripolyphosphate, alkali metasilicate and alkali carbonate.
• organic additives such as non-foaming surfactants, polycarboxylates (homopolymers of acrylic acid or copolymers with maleic acid), chlorine releasers (eg sodium dichloroisocyanurate) are used.
• Such cleaners are not only used for cleaning the dishes, but also in larger quantities for basic cleaning and degreasing of the dishwasher itself.
• the machine cleaner used for cleaning and degreasing the machine is added to the dishwasher in larger quantities that cannot be added to the metering chamber, the machine cleaner must be added to the interior of the dishwasher in powder form. If used improperly, when the powder was poured on the sieve inside the machine, the powder in the circulation pump would clump and cause high repair costs. This was also due to the powdery consistency of dust in the material, which leads to irritation of the respiratory tract when inhaled.
• the portioned cleaners offer several advantages over the loose powder, such as constant dosing, no or less dust formation, no or less skin contact, no or less clumping and no spilling of powder. There are two different solutions.
• sachets Another option for providing portioned cleaners is through the use of sachets.
• a sachet is described, for example, in DE-A-4011508, which discloses a textile detergent for a washing machine, the sachet consisting of insoluble, water-permeable fabric.
• the grain size distribution of the granular content is chosen so that the mesh size of the fabric is smaller than the grain size. The product can only be released after penetration by water.
• FR-A-2616796 sachets with liquid detergents are described.
• both embodiments of the detergent tablets have the disadvantage that the tablets have a delayed solubility, so that they only become fully effective slowly, whereas powdered detergents have a high dissolution rate.
• the tablet In the case of tablets which, due to their size, can be placed in the metering chamber of the machine, the tablet normally falls freely onto the inside of the dishwasher when the metering chamber is opened and dissolves there only slowly, since the water does not use much mechanical energy there.
• Tablets which due to their size can no longer be placed in the dosing chamber, are placed directly in the Cutlery basket or a separate holder. This means that part of the detergent is already dissolved in the pre-rinse cycle. This means that the tablet must be so hard that only a little substance is dissolved in the pre-rinse cycle and the main amount is available in the main rinse cycle. However, this increases the risk of caustic solution being carried over to rinse-aid, since it is difficult to precisely maintain the tablet's dissolving speed.
• the object of the present invention was to provide a portioned cleaner for the dishwasher, which is easy and safe to use and does not have the disadvantages mentioned above.
• the object of the invention is achieved by providing a product for releasing treatment agents into the washing liquid of an automatic washing machine or dishwasher, comprising a bag with at least one chamber containing a treatment agent, the chamber walls consisting of water-soluble film material with such water solubility that the treatment agent is released within the period up to the start of rinse aid according to the type of treatment agent.
• the bag according to the invention depending on its size, which can contain from 10 to 500 g of treatment agent depending on the intended use, can be placed in the dosing chamber or in the crockery basket.
• the bag can be taken up like a powder or granulate from the dosing chamber of the dishwasher. For larger bags, this is placed in the basket.
• the water solubility can be chosen arbitrarily so that the treatment agent is released at the beginning of the washing process in the pre-rinse cycle or during the hot rinse cycle.
• Water-soluble films based on synthetic or natural polymers such as starch, polyvinyl alcohol or modified polyvinyl alcohol, which can also be biodegradable, can be used as the bag material. The use of polyvinyl alcohol or acetylated polyvinyl alcohol is preferred.
• polyvinyl alcohol does not result in excessive foaming, which usually occurs in dishwashers when the alkali is circulated and which strongly inhibits or even prevents the detergent solution from being continuously fed onto the dishes, since the circulating pump only sucks in air or foam.
• polyvinyl alcohol as the film material is also preferred for the reason that the polyvinyl alcohol of the film is completely biodegraded in the sewage treatment plant and is completely non-toxic. This makes the environmentally friendly formulation of the portioned while using the above-mentioned detergent composition Reinerers greatly upgraded ecologically. At the same time, waste is significantly reduced compared to the individual packaging of tablets, for example, and the dangers in the household when using the cleaner are also minimized.
• a composition consisting of is used as the preferred treatment agent for cleaning dishes
• water-soluble alkali silicate with a ratio of silicon dioxide to alkali oxide of greater than 1: 1, 0 - 50% by weight alkali carbonate, 2 to 20% by weight of polymeric sequesters or dispersants, preferably of the polycarboxylate type, in particular homopolymers of acrylic acid or copolymers with other organic acids or ethers which contain vinyl groups, 0 - 40% by weight alkali salts of organic acids with sequestering action on calcium ions such as polycarboxylic acids, in particular citric acid or acids obtained fermentatively from sugar, in particular gluconic acid.
• a boron-free, oxygen-based bleaching agent from the group of peroxo compounds or peroxohydrates or mixtures thereof, which release hydrogen peroxide in the water
• a bleach activator from the group of compounds which liberate reactive peracids, in particular peracetic acid, under the action of hydrogen peroxide
• enzymes or enzyme mixtures from the group of hydrolases, in particular proteases, amylases and lipases 0.5 - 5% by weight of a low-foaming, non-ionic or anionic surfactant, the sum of the individual components being 100% by weight.
• amorphous sodium disilicate with SiO2: Na2O from 1.9: 1 to 2.1: 1, 10 - 40% by weight, in particular 25-35% by weight, sodium carbonate, 3 - 10 wt.%, In particular 4-8 wt.%, Polyacrylate maleate (7: 3) as sodium salt, 3 - 10% by weight, in particular 4-7% by weight, sodium gluconate, 5 - 25% by weight, in particular 5-15% by weight, sodium percarbonate, 0 - 15 wt.%, In particular 3-7 wt.%, TAED (tetraacetylethylene diamine), 0-2% by weight, in particular 0.2-0.5% by weight, of HEDP (hydroxyethane-1,1-diphosphonic acid) as the sodium salt, 0 - 5% by weight mixture of stabilized enzymes, in particular proteases, amylases and lipases, 0 - 5% by weight of low-foaming, i
• the silicates and carbonates serve as mild alkalis to improve dirt removal by swelling, and the silicates also as corrosion protection.
• the pH of the cleaner can be adjusted between about 9.5 and 11.5 and buffered.
• Both the polycarboxylates or other polymers mentioned and the organic acids or their salts serve primarily to bind the water hardness, which can still be present in the dishwasher despite the ion exchanger.
• the polymeric material of the bag itself like the other polymers, also contributes to the dispersion of solids, e.g. Spinach particles, at.
• the bleaching system consists of the active oxygen donor from the group of the per compounds, the activator, such as TAED and the stabilizer, preferably from the group of the phosphates.
• the activator such as TAED
• the stabilizer preferably from the group of the phosphates.
• nitrogen bases can also be used as complexing agents for iron and heavy metals as in the case of glycine derivatives are even biodegradable.
• These stabilizer compounds delay the decomposition of the active oxygen compounds catalyzed by the metal ions by complexing the metal ions.
• the oxygen carrier In the case of polyvinyl alcohol as film material, the oxygen carrier must be boron-free, since the borates react with the polyvinyl alcohol to form poorly soluble complexes, which has a negative effect on the solubility of the bag.
• the low-foaming surfactants contribute to cleaning performance through their defoaming effect and the solubilization of fats.
• the enzymes have a very specific effect on food residues. Starch residues are targeted by the amylase and protein residues by the protease. Since they show strong effects even in extremely small quantities and are biodegradable, they contribute to the low environmental impact of the portioned cleaner. The same applies to lipase, which can be used for better degreasing.
• the bag according to the invention has a larger capacity of approx. 250 g
• the product according to the invention can suitably be used for cleaning and degreasing the machine itself.
• the compositions mentioned above can be used as cleaning agents.
• the bag according to the invention can also be used for cleaning washing machines.
• the descaling treatment agents primarily free the heating elements of the washing machine, whereas the alkaline cleaners remove the so-called fat lice.
• the latter are deposits of constituents of the detergents, grease and hardness formers of the water, which often result from underdosing of the detergents.
• the product comprises a second chamber containing a second treatment agent, which can be adjacent to, separated from or contained in the first chamber via a common seam.
• the inner bag can also be completely separated from or attached to the outer bag.
• An integrated construction, created by folding, is also possible.
• the second chamber can be present in a separate, additional third chamber, separate from the first chamber.
• the water solubilities of the chamber walls of the two chambers are expediently so different that the dissolution of the respective chamber wall and the release of the treatment agent contained therein take place at different times in the course of the cleaning process before the rinse process begins.
• the water solubility of the chamber walls can be influenced, for example, by the chamber walls of the two chambers being made of water-soluble film material with different thicknesses and / or of different polymers or mixtures thereof. In this way it can be achieved, for example, that the content of the first chamber is carried out with cold water Pre-rinse and the contents of the second chamber are only released in the course of the actual cleaning step carried out with hot water.
• the film material used can have a thickness of 1 ⁇ m to 2 mm.
• a decalcifying agent can then be used as the ingredient in the first chamber, for example, which is selected from the group consisting of citric acid, urea phosphate and sulfamic acid or other solid inorganic or organic acids or acid salts.
• any form of direct contact with the cleaner is avoided in the formulation with the composition given above as a result of the alkali reduction using the following procedure. No dust is released and the respiratory tract is not irritated.
• a product according to the invention can accordingly be provided with two chambers, the decalcifier being packed in the chamber made of cold water-soluble film and the alkaline basic cleaner in the chamber made of hot water-soluble film.
• the decalcifying agent works in the pre-rinse cycle, whereas the alkaline cleaner only works when the main rinse cycle heats up.
• the decalcifying agent works in the pre-rinse cycle
• the alkaline cleaner only works when the main rinse cycle heats up.
• a corresponding result can also be achieved when using two separate bags, each of which comprises chambers made of different film materials with different ingredients.
• the water-soluble adhesives which can usually be used in this field can be used as the adhesive for the film material forming the chamber.
• Sodium carboxymethyl cellulose is mentioned as an example of a suitable water-sensitive adhesive.
• a product according to the invention is provided, which is characterized in that the bag comprising at least one chamber is connected to one or more bags comprising at least one chamber via film areas which have tear-off areas between adjacent bags, which may or may not be perforated, and which allow the individual bags to be separated from one another. The consumer can thus easily portion the amount of treatment agent.
• the recipe from Example II is packed with 250 g in sachets made of cold water-soluble polyvinyl alcohol with a wall thickness of 40 m ⁇ .
• the alkalinity of the cleaner is adjusted so that the film material is not affected.
• a machine with heavy deposits of food residues in the sieve of the circulation pump is treated as follows: At the beginning of the main wash cycle without items to be washed, the machine is opened and the original sealed bag is placed in the upper basket. After closing, the water is immediately circulated again and the contents of the bag practically at first contact with water released and evenly distributed. After the program has ended, the sieve is free of leftovers.
• a parallel test with the same powder, which is improperly poured directly onto the sieve leads to the fact that the cleaner hardens in the suction hose of the circulation pump and a repair is necessary.
• Example 1 The same bag material as in Example 1) is filled with 250 g of citric acid. With the same procedure as in 1), limescale deposits are removed in the machine, especially on the heating elements.
• a combination pack When connecting the dishwasher to cold water, a combination pack can be used, which is made up of different foils.
• the bag from 2) serves as a descaler.
• the cleaner as in 1) is in a bag made of a polyvinyl acetate, which is only partially converted to polyvinyl alcohol. This can affect the water solubility.
• the degree of conversion is chosen so that the film only dissolves completely from a temperature of 45 ° to 50 ° C.
• the wall thickness is approx. 100 m ⁇ so that the bag does not burst open prematurely and the product is released.
• a dishwasher with leftovers in the sieve and limescale deposits on the heating elements is treated as follows: The two separate bags (a descaler and a cleaner) are placed unopened next to each other in the upper basket. Then a 65 ° C program with pre-rinse chosen. This is the normal program for the Siemens dishwasher type Lady Plus 260 used. In the pre-rinse cycle with cold water (inlet approx. 17 ° C), the bag with the citric acid dissolves and the lime on the heating elements is removed. The bag with the alkaline cleaner is only slightly dissolved. The acidic solution is pumped off and fresh water for the main wash cycle runs in. After the circulation and heating have started, the second pouch with the cleaner opens when it reaches approx. 40 ° to 50 ° C. Now the alkaline cleaner can attack the leftovers in the sieve. Result: The machine is descaled and cleaned of food residues in one operation. This saves water and energy compared to separate use.
• recipe I can advantageously be used, since the more stable perborate is present as oxygen bleach. However, since part of the protease is used up by the bag material, the removal of the oatmeal is somewhat worse. If mixture I uses polyvinyl alcohol as the bag material, you will find slimy residues in the machine and on the dishes.
• the cleaning performance of formulation I was determined using pouches made of starch, the others using pouches made of polyvinyl alcohol which was soluble in cold water.
• the dosage was 25 g.
• the reference cleaner according to the DIN 44990 standard achieved a cleaning index of 3.98.

Applications Claiming Priority (2)

Publications (1)

Family

ID=6884955

Family Applications (1)

Country Status (2)

Cited By (44)

Families Citing this family (4)

Citations (4)

• 1992
  • 1992-10-17 DE DE9214065U patent/DE9214065U1/de not_active Expired - Lifetime
• 1993
  • 1993-09-29 EP EP93115693A patent/EP0593952A1/fr not_active Ceased

Patent Citations (4)

Also Published As

Similar Documents

Legal Events