EP1215278A1 - Zuführbare Tablettenkerne - Google Patents
Zuführbare Tablettenkerne Download PDFInfo
- Publication number
- EP1215278A1 EP1215278A1 EP01128882A EP01128882A EP1215278A1 EP 1215278 A1 EP1215278 A1 EP 1215278A1 EP 01128882 A EP01128882 A EP 01128882A EP 01128882 A EP01128882 A EP 01128882A EP 1215278 A1 EP1215278 A1 EP 1215278A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- core
- moldings
- preferred
- cores
- tablets
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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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
- C11D17/0047—Detergents in the form of bars or tablets
- C11D17/0065—Solid detergents containing builders
- C11D17/0073—Tablets
- C11D17/0078—Multilayered tablets
Definitions
- the present invention relates to a process for the production of moldings, in particular of detergent tablets.
- Detergent tablets are widely described in the prior art are becoming increasingly popular with consumers because of the simple dosage.
- Tableted cleaning agents have a number of products compared to powder products of advantages: They are easier to dose and handle and because of their compact structure Advantages in storage and transport.
- the developers are involved early on tablet-shaped products came up with the idea of different compositions Areas of the molded body certain ingredients only under defined conditions to be released in the washing or cleaning cycle in order to ensure cleaning success improve.
- In addition to those well known from pharmacy Core / shell tablets and ring / core tablets, in particular multi-layer molded articles prevailed today for many areas of washing and cleaning or hygiene Tobe offered.
- Multi-phase cleaning tablets for the toilet are described for example in EP 055 100 (Jeyes Group).
- This document discloses toilet block detergents which comprise a molded body of a slowly soluble detergent composition in which a bleach tablet is embedded.
- this document discloses the most varied forms of configuration of multiphase shaped bodies.
- the moldings are produced either by inserting a compressed bleach tablet into a mold and pouring the detergent composition into this tablet, or by pouring part of the detergent composition into the mold, followed by inserting the compressed bleach tablet and possibly subsequently pouring over it with another detergent composition.
- EP 481 547 also describes multi-phase detergent tablets which are to be used for automatic dishwashing.
- These shaped bodies have the shape of core / shell tablets and are produced by gradually compressing the components: first, a bleaching composition is pressed into a shaped body, which is placed in a matrix half-filled with a polymer composition, which is then filled with another polymer composition and is pressed to form a bleaching agent body provided with a polymer jacket. The process is then repeated with an alkaline detergent composition, so that a three-phase shaped body results.
- coated cores should both have a stable and adherent coating and should be able to be fed at high speeds. It has now been found that certain core shapes can then be precisely fed in large numbers and at high speeds.
- the invention relates to a method for producing detergent tablets, in the case of the prefabricated shaped body (“cores”), tabletting mixtures and / or prefabricated tablets (“base tablets”) are supplied, the cores have a biconvex shape, the convex surfaces being capped so that they each lead to a horizontal plateau.
- cores prefabricated shaped body
- base tablets prefabricated tablets
- the shape of the cores in the process according to the invention is chosen so that the vertical Cross-sectional area has at least two parallel lines (horizontal plateaus), which open to the sides in sloping, convex lines. Cores are therefore suitable with a biconvex shape, in which the top of the convex surface is at least each is partially removed.
- Preferred core shapes have a circular horizontal cut surface, so that preferred methods according to the invention are characterized in that the cores have a circular horizontal surface.
- the radii of curvature of the convex surfaces preferably match the size of the plateaus customized. Methods according to the invention are preferred here in which the radius of curvature the convex surfaces 0.5 to 5 times, preferably one to 3 times and in particular 1.5 to twice the diameter of the cores.
- the size of the plateau depends on the absolute size of the entire core. Methods according to the invention are preferred here, in which the diameter of the plateaus is 0.1 to 0.7 times, preferably 0.2 to 0.6 times, particularly preferably 0.25 to 0.5 times and in particular 0.3 to Is 0.4 times the diameter of the cores.
- the two convex surfaces can meet directly; but it is also possible that the connection is made via a vertical edge surface, which the core a wider Gives contact surface when in contact with other cores.
- the cores additionally have a vertical edge surface, the Height 0.1 to 0.9 times, preferably 0.2 to 0.7 times, particularly preferred 0.25 to 0.6 times and in particular 0.3 to 0.5 times the total tablet height is.
- a shaped body (“core”) is produced, which then either together with a particulate premix to one Multiphase tablet pressed or fed to a cavity of a pre-compressed molded body becomes.
- the method according to the invention also allows several to be pressed Core moldings together with one or more particulate premixes, whereby both of the recipe variability as well as of the optical differentiation the resulting molded body creates almost unlimited possibilities. Likewise, the dosing of several cores in several cavities of a basic shaped body possible without any problems.
- core molded article characterizes in the context of the present invention a molded body, which are supplied to the method according to the invention in a targeted manner can.
- this core molding differs from the particulate premix due to its larger spatial extension compared to the individual particles of the premix and on the other hand in that its placement in the matrix of Tablet press not in an arbitrary manner (i.e. in bulk like the particulate Premix), but in a defined and orderly movement.
- the mass of the core molding can vary on the overall molding.
- the mass of the core molding a) is more than 0.5 g, preferably more than 1 g and in particular more than 2 g.
- the core molding a) has a base area of at least 50 mm 2 , preferably of at least 100 mm 2 and in particular of at least 150 mm 2 .
- the core molding has a lower density than the entire end product of the process according to the invention.
- processes are preferred in which the core shaped body has a density below 1.4 gcm -3 , preferably below 1.2 gcm -3 and in particular below 1.0 gcm -3 .
- the process end product of the process according to the invention contains more than one Shaped core, the information given above preferably applies to all Core moldings individually, i.e. not for the sum of the core moldings, but for everyone individual.
- the core moldings are made in preferred process variants coated or treated with encapsulants. This can be done using common Methods of coating bodies are used, in particular that Immersing the body in or spraying the body with a solution of the coating materials.
- Methods are preferred which use solutions which are as concentrated as possible. Independently whether a dipping process or another type of application (spraying etc.) is selected, methods according to the invention are preferred in which the solution based on their weight at least 25% by weight, preferably at least 30 % By weight, particularly preferably at least 35% by weight and in particular at least 40 Wt .-% coating material contains.
- the substances are applied as a coating to the core molding, the substances e.g. sprayed on as a melt or in the form of a solution or dispersion or the mixture can be immersed in the melt, solution or dispersion or mixed in a suitable mixer. Coating too in a fluid bed apparatus is possible. When spraying, all are suitable for Pharmaceutical and food technology established processes for the production of coated Tablets, capsules and particles.
- the polymer suspension or solution is either sprayed discontinuously in small portions, the particles e.g. transported on a conveyor belt through a liquid veil and then in the Airflow can be dried or continuously while drying by the injected air flow in fluidized bed, fluidized bed or flight bed wrapping devices sprayed.
- the coating process is also conceivable if the coating syrups are used for coating materials are added in a sufficiently high concentration.
- the application a second layer may be carried out analogously.
- the aqueous solution can be further with water miscible volatile solvents are added.
- water miscible volatile solvents come in particular from the group of alcohols, ethanol, n-propanol and iso-propanol being preferred are. For cost reasons, ethanol and isopropanol are particularly recommended.
- aqueous solutions can be done in different ways are familiar to the expert.
- the solution can be created using a pump system a nozzle where the solution is atomized by the high shear forces becomes.
- the resulting spray mist can then be applied to the moldings to be coated are directed, which subsequently optionally with the help of suitable measures (e.g. blowing with heated air).
- suitable measures e.g. blowing with heated air
- a two-component nozzle used and used as carrier gas compressed air.
- Protecting oxidation or other interactions with the carrier gas can also other carrier gases such as nitrogen, noble gases, lower alkanes or ethers be used.
- Processes according to the invention are based on coating materials on their weight contain more than 20 wt .-% coating material in one Solvent or solvent mixture from the group water, ethanol, propanol, iso-propanol, n-heptane and their mixtures with the aid of inert blowing agents from the Group nitrogen, nitrous oxide, propane, butane, dimethyl ether and mixtures thereof sprayed onto the moldings.
- Solvent or solvent mixture from the group water, ethanol, propanol, iso-propanol, n-heptane and their mixtures with the aid of inert blowing agents from the Group nitrogen, nitrous oxide, propane, butane, dimethyl ether and mixtures thereof sprayed onto the moldings.
- suitable coating materials are (in particular water-soluble polymers) also waxes.
- waxes Under “Grow” a number of natural ones become or artificially obtained substances that are usually above 35 ° C without decomposition melt and relatively low viscosity a little above the melting point and are not stringy. They have a strongly temperature-dependent consistency and Solubility. According to their origin, the waxes are divided into three groups, the natural ones Waxes, chemically modified waxes and synthetic waxes.
- Natural waxes include, for example, vegetable waxes such as candelilla wax, Carnauba wax, Japanese wax, esparto grass wax, cork wax, guaruma wax, Rice germ oil wax, sugar cane wax, ouricury wax, or montan wax, animal waxes such as beeswax, shellac wax, walrus, lanolin (wool wax), or pretzel fat, Mineral waxes such as ceresin or ozokerite (earth wax), or petrochemical waxes such as Petrolatum, paraffin waxes or micro waxes.
- vegetable waxes such as candelilla wax, Carnauba wax, Japanese wax, esparto grass wax, cork wax, guaruma wax, Rice germ oil wax, sugar cane wax, ouricury wax, or montan wax
- animal waxes such as beeswax, shellac wax, walrus, lanolin (wool wax), or pretzel fat
- Mineral waxes
- the chemically modified waxes include hard waxes such as Montanester waxes, Sassol waxes or hydrogenated jojoba waxes.
- Synthetic waxes generally include polyalkylene waxes or Understand polyalkylene glycol waxes. Can also be used as coating materials Compounds from other classes of substances which meet the requirements mentioned with regard to the Meet softening point. Suitable synthetic compounds have been found for example higher esters of phthalic acid, especially dicyclohexyl phthalate, the is commercially available under the name Unimoll® 66 (Bayer AG). Suitable are also synthetically produced waxes from lower carboxylic acids and fatty alcohols, for example Dimyristyl Tartrate, which is sold under the name Cosmacol® ETLP (Condea) is available. Conversely, synthetic or semi-synthetic esters from lower are also Alcohols with fatty acids from native sources can be used.
- Tegin® 90 Goldschmidt
- Shellac for example Shellac-KPS-Dreiring-SP (Kalkhoff GmbH) is another Substance can be used.
- the waxes within the scope of the present invention are also, for example the so-called wax alcohols.
- Wax alcohols are higher molecular weight, water-insoluble fatty alcohols usually with about 22 to 40 carbon atoms.
- the Wax alcohols for example, come in the form of wax esters of higher molecular weight Fatty acids (wax acids) as the main component of many natural waxes.
- examples for Wax alcohols are lignoceryl alcohol (1-tetracosanol), cetyl alcohol, myristyl alcohol or Melissyl.
- the coating can optionally also contain wool wax alcohols, what is meant by triterpenoid and steroid alcohols, for example lanolin, that for example, is available under the trade name Argowax® (Pamentier & Co). Can also be used at least partially as part of the coating in the frame of the present invention but fatty acid glycerol esters or fatty acid alkanolamides optionally also water-insoluble or only slightly water-soluble Polyalkylene glycol.
- wool wax alcohols what is meant by triterpenoid and steroid alcohols, for example lanolin, that for example, is available under the trade name Argowax® (Pamentier & Co).
- fatty acid glycerol esters or fatty acid alkanolamides optionally also water-insoluble or only slightly water-soluble Polyalkylene glycol.
- Water-soluble polymers in the sense of the invention are those polymers which are at room temperature are more than 2.5% by weight soluble in water.
- the coating of the core moldings can preferably be functionalized, i.e. give the molded body a certain resolution kinetics. It is through targeted choice of the Coating material also possible that the coating only to a predetermined Time or given conditions dissolves and the components of the core molding releases. Here in particular so-called LCST substances have been found Coating materials proven.
- LCST substances are substances that are active at low temperatures have better solubility than at higher temperatures. They are also called substances designated with the lower critical separation temperature. These substances are usually polymers. Depending on the application conditions, the lower critical Separation temperature between room temperature and the temperature of the warmest Application liquor, for example between 20 ° C, preferably 30 ° C and 100 ° C, especially between 30 ° C and 50 ° C.
- the LCST substances are preferably selected from alkylated and / or hydroxyalkylated polysaccharides, cellulose ethers, Polyisopropylacrylamide, copolymers of polyisopropylacrylamide and blends of these Substances.
- alkylated and / or hydroxyalkylated polysaccharides are methylhydroxypropylmethyl cellulose (MHPC), ethyl (hydroxyethyl) cellulose (EHEC), hydroxypropyl cellulose (HPC), methyl cellulose (MC), ethyl cellulose (EC), carboxymethyl cellulose (CMC), carboxymethyl methyl cellulose (CMMC), Hydroxybutyl Cellulose (HBC), Hydroxybutylmethyl Cellulose (HBMC), Hydrdoxyethylcellulose (HEC), Hydroxyethylcarboxymethylcellulose (HECMC), hydroxyethyl ethyl cellulose (HEEC), hydroxypropyl cellulose (HPC), hydroxypropyl carboxymethyl cellulose (HPCMC), Hydroxyethylmethylcellulose (HEMC), Methylhydroxyethylcellulose (MHEC), methyl hydroxyethyl propyl cellulose (MHEPC), methyl cellulose (MC) and propyl cellulose
- LCST substances are cellulose ethers and mixtures of cellulose ethers with carboxymethyl cellulose (CMC).
- CMC carboxymethyl cellulose
- Other polymers that have a lower critical Show separation temperature in water and which are also suitable are polymers of mono- or di-N-alkylated acrylamides, copolymers of mono- or di-N-substituted Acrylamides with acrylates and / or acrylic acids or mixtures of one another intertwined networks of the above (co) polymers.
- polyethylene oxide or copolymers thereof such as ethylene oxide / propylene oxide copolymers and graft copolymers of alkylated acrylamides with polyethylene oxide, polymethacrylic acid, Polyvinyl alcohol and copolymers thereof, polyvinyl methyl ether Proteins such as poly (VATGVV), a repeating unit in the natural protein Elastin and certain alginates.
- LCST lower critical separation temperature
- the invention core moldings used in addition to the LCST coating with a coated additional material, which at a temperature above the lower separation temperature the LCST substance is soluble or has a melting point above this temperature or has a delayed solubility, that is above the lower Demixing temperature of the LCST layer can be released.
- This layer serves the mixture of active ingredient and LCST substance before water or other media, that can dissolve them before heat treatment.
- This additional layer should not be liquid at room temperature and preferably has a melting point or softening point at a temperature equal to or above the lower critical
- the segregation temperature of the LCST polymer is. The is particularly preferably Melting point of this layer between the lower critical separation temperature and the temperature of the heat treatment.
- the LCST polymers and the further substance are mixed with one another and applied to the material to be encapsulated.
- the further substance preferably has a melting range that is between approximately 35 ° C and about 75 ° C. In the present case, this means that the melting range is within of the specified temperature interval occurs and does not denote the width of the Melting range.
- the above information on the mass, geometry and density of the core moldings can also be made for the end products of the process according to the invention, ie the moldings themselves.
- Processes are preferred here in which the mass of the entire shaped detergent or cleaning product is 10 to 100 g, preferably 15 to 80 g, particularly preferably 18 to 60 g and in particular 20 to 45 g, while the base area of the end products of the process is chosen in preferred processes is that the detergent tablets have a base area of at least 500 mm 2 , preferably at least 750 mm 2 and in particular at least 1000 mm 2 .
- the entire molded body has a density above 1.1 gcm -3 , preferably above 1.2 gcm -3 and in particular above 1.4 gcm -3 .
- the premix obtained in step c) of the invention Procedure is filled into the die, certain physical criteria enough.
- Preferred methods are characterized, for example, in that the Particulate premix in step c), a bulk density of at least 500 g / l, preferably has at least 600 g / l and in particular at least 700 g / l.
- the particle size of the premix filled in step c) is also preferably sufficient certain criteria: methods in which the particulate premix in step c) Particle sizes between 100 and 2000 ⁇ m, preferably between 200 and 1800 ⁇ m, particularly preferably between 400 and 1600 ⁇ m and in particular between 600 and 1400 ⁇ m, are preferred according to the invention. Another narrowed particle size in the premixes to be pressed can be used to obtain advantageous molded body properties can be set. In preferred variants for the invention In the method, the particulate premix filled in step c) has a particle size distribution at which less than 10% by weight, preferably less than 7.5% by weight and in particular less than 5% by weight of the particles larger than 1600 ⁇ m or smaller than 200 ⁇ m.
- Narrower particle size distributions are further preferred here.
- the Step c) added particulate premix has a particle size distribution, more than 30% by weight, preferably more than 40% by weight and in particular more than 50 wt .-% of the particles have a particle size between 600 and 1000 microns.
- process step c) can also be carried out several times in succession - optionally interrupted by optional process steps d) - carry out so that one produces multilayered shaped bodies in a manner known per se by two or preparing several premixes which are pressed together.
- it can First pre-mixed, lightly pre-pressed to create a smooth and parallel to the Get molded bottom trending top, and after filling the second Premixed to the final molded article.
- Moldings can be precompressed after each addition of premix, before the molded body is finally pressed after the addition of the last premix.
- the end products of the method according to the invention can be predetermined Space shape and predetermined size can be made.
- This last embodiment covers the presentation form from tablets to compact cylinder pieces with one Ratio of height to diameter above 1.
- the molded body produced can assume any geometric shape, in particular concave, convex, biconcave, biconvex, cubic, tetragonal, orthorhombic, cylindrical, spherical, segment-like, disc-shaped, tetrahedral, dodecahedral, octahedral, conical, pyramidal, ellipsoid, five-, seven- and octagonal-prismatic and rhombohedral shapes are preferred.
- Completely irregular too Base areas such as arrow or animal shapes, trees, clouds, etc. can be realized. If the molded body produced has corners and edges, these are preferred rounded. As an additional optical differentiation, an embodiment with rounded Corners and chamfered (“chamfered”) edges preferred.
- the end products of the process according to the invention are produced by tableting; this method can optionally be used for the production of the core molding.
- methods of tableting according to the invention are preferred, which are characterized in that the compression in step a) and / or f) at compression pressures from 1 to 100 kNcm -2 , preferably from 1.5 to 50 kNcm -2 and in particular from 2 up to 25 kNcm -2 .
- a mandatory process step is, i.e. the method according to the invention falls into the group of tableting methods the core moldings can also be produced by other processes known to the person skilled in the art.
- a preferred way to get core moldings is through the ingredients melt and pour into molds where they solidify.
- This preferred Process in which the core moldings are produced in step a) by casting will always be an advantage where the ingredients of the core molding are fusible. Since certain meltable substances cause additional dissolution acceleration or ⁇ delay effects, is this manufacturing process preferred for the core moldings.
- sintering is another preferred method of manufacture the core molding.
- Corresponding processes in which the production of the shaped core body in step a) by sintering are also preferred.
- step f Further information on tableting for the production of core moldings in step a) of the inventive method are below in the detailed description of process step f).
- Another preferred production process for the core moldings a) is to provide this in the form of a capsule.
- Processes characterized by that the core molding is a capsule are also preferred embodiments of the present invention.
- the core moldings a) are produced certain substances common in washing or cleaning agents preferably in the Core moldings included.
- the method according to the invention is not limited to this. that only one type of core molding is used, all core molding contain the same active substance in the same amounts.
- a special feature occurs in the process according to the invention if only one core molding is transferred into the die: in the order of process steps a) -c) -d) -f) a tablet is obtained in which the core molding is on the top of the resulting Shaped body is localized. It can be beneficial for certain reasons first transfer a core molding into the empty die and then pre-mix it fill. This would correspond to a sequence of process steps a) -d) -c) -f), or in principle a method a) -b) -c) -f), in which step d) is dispensed with.
- Step d) is not carried out optionally, but is mandatory, steps c) and d) of the method according to the invention, if necessary, in reversed order be performed. This results in a shaped body in which the core shaped body adheres the bottom of the resulting molded body is located.
- the core molding a) contains surfactant (s) as an ingredient. These substances are described in detail below.
- Preferred levels of the core shaped body (s) of surfactant (s) are based on the individual core shaped body - at 0.5 to 80 wt .-%, preferably 1 to 70 wt .-% and in particular at 5 to 60% by weight.
- Processes according to the invention in which the core molding a) as an enzyme (e) ingredient contains are preferred according to the invention. These substances are also described in detail below.
- Preferred contents of the core molding (s) Enzyme (s) - based on the individual core moldings - are from 0.01 to 50% by weight, preferably 0.1 to 25% by weight and in particular 1 to 15% by weight.
- Processes which are characterized in that the core molding from step a) as Ingredient containing bleach and / or bleach activator (s) are also preferred.
- the representatives of these substance classes are also described in detail below.
- Preferred bleach contents of the core molding (s) are based on the individual core moldings - at 0.5 to 100% by weight, preferably at 1 to 90% by weight and especially at 5 to 80% by weight, while preferred levels of bleach activators in the range from 0.1 to 70% by weight, preferably from 0.5 to 50% by weight and in particular from 1 to 25% by weight.
- the Molded core a) as an ingredient disintegration aid and / or gas-generating systems contains.
- Preferred disintegration aid contents of the core molding (s) are - based on the individual core moldings - at 0.1 to 30% by weight, preferably 0.5 to 20% by weight and in particular 2.5 to 15% by weight, while shower systems advantageously in amounts of 1 to 80 wt .-%, preferably from 2.5 to 70% by weight and in particular from 5 to 60% by weight are used.
- shower systems advantageously in amounts of 1 to 80 wt .-%, preferably from 2.5 to 70% by weight and in particular from 5 to 60% by weight are used.
- shower systems advantageously in amounts of 1 to 80 wt .-%, preferably from 2.5 to 70% by weight and in particular from 5 to 60% by weight are used.
- shower systems advantageously in amounts of 1 to 80 wt .-%, preferably from 2.5 to 70% by weight and in particular from 5 to 60% by weight are used.
- Especially the combination of shower systems with enzymes is preferred.
- the core molding a) as a water softener ingredient and / or contains complexing agents are also preferred.
- a water softener for example, ethylenediaminetetraacetic acid (EDTA), nitrilotriacetate (NTA) and related substances, but also ion exchangers and other complexing agents, as they are described in detail below, can be used with preference.
- the core moldings can optionally be coated or be treated with encapsulants.
- the core moldings are produced by a casting process, they preferably contain one or more meltable substance (s) with a melting point above of 30 ° C, preferred methods being characterized in that the in Step a) produced core moldings based on his / her weight at least 30 % By weight, preferably at least 37.5% by weight and in particular at least 45% by weight contains meltable substance (s) with a melting point above 30 ° C.
- the core molding (s) contains one or more substances with a Melting range between 30 and 100 ° C, preferably between 40 and 80 ° C and in particular between 50 and 75 ° C, contains / are included, are particularly preferred.
- the processing of the state of the melt in step a) is, however, according to the invention not the pouring, i.e. pouring and solidifying into molds, bound.
- melting can also be converted into core moldings by using the The melt is processed by suitable processes to form particulate material and this Particles subsequently pressed into core moldings. Process according to the invention, at which the manufacture of the core moldings by converting a melt into particulate Material and subsequent pressing is therefore preferred Embodiments of the present invention.
- fusible substances are used as the ingredient of the core moldings, they can be particulate Preparations are made by methods known per se, which in Within the scope of the present invention is preferred. The following are particularly useful Beating, pastilling or scaling.
- core molded article characterizes in the context of the present invention a molded body, which are supplied to the method according to the invention in a targeted manner can.
- this core molding differs from the particulate premix due to its larger spatial extension compared to the individual particles of the premix and on the other hand in that its placement in the matrix of Tablet press not in an arbitrary manner (i.e. in bulk like the particulate Premix), but in a defined and orderly movement.
- the mass of the core molding can vary on the overall molding.
- the mass of the core molding a) is more than 0.5 g, preferably more than 1 g and in particular more than 2 g.
- the core molding a) has a base area of at least 50 mm 2 , preferably of at least 100 mm 2 and in particular of at least 150 mm 2 .
- the core molding has a lower density than the entire end product of the process according to the invention.
- processes are preferred in which the core shaped body has a density below 1.4 gcm -3 , preferably below 1.2 gcm -3 and in particular below 1.0 gcm -3 .
- the process end product of the process according to the invention contains more than one Shaped core, the information given above preferably applies to all Core moldings individually, i.e. not for the sum of the core moldings, but for everyone individual.
- the above information on the mass, geometry and density of the core moldings can also be made for the end products of the process according to the invention, ie the moldings themselves.
- Processes are preferred here in which the mass of the entire shaped detergent or cleaning product is 10 to 100 g, preferably 15 to 80 g, particularly preferably 18 to 60 g and in particular 20 to 45 g, while the base area of the end products of the process is chosen in preferred processes is that the detergent tablets have a base area of at least 500 mm 2 , preferably at least 750 mm 2 and in particular at least 1000 mm 2 .
- the entire molded body has a density above 1.1 gcm -3 , preferably above 1.2 gcm -3 and in particular above 1.4 gcm -3 .
- the premix obtained in step c) of the invention Procedure is filled into the die, certain physical criteria enough.
- Preferred methods are characterized, for example, in that the Particulate premix in step c), a bulk density of at least 500 g / l, preferably has at least 600 g / l and in particular at least 700 g / l.
- the particle size of the premix filled in step c) is also preferably sufficient certain criteria: methods in which the particulate premix in step c) Particle sizes between 100 and 2000 ⁇ m, preferably between 200 and 1800 ⁇ m, particularly preferably between 400 and 1600 ⁇ m and in particular between 600 and 1400 ⁇ m, are preferred according to the invention. Another narrowed particle size in the premixes to be pressed can be used to obtain advantageous molded body properties can be set. In preferred variants for the invention In the method, the particulate premix filled in step c) has a particle size distribution at which less than 10% by weight, preferably less than 7.5% by weight and in particular less than 5% by weight of the particles larger than 1600 ⁇ m or smaller than 200 ⁇ m.
- Narrower particle size distributions are further preferred here.
- the Step c) added particulate premix has a particle size distribution, more than 30% by weight, preferably more than 40% by weight and in particular more than 50 wt .-% of the particles have a particle size between 600 and 1000 microns.
- process step c) can also be carried out several times in succession - optionally interrupted by optional process steps d) - carry out so that one produces multilayered shaped bodies in a manner known per se by two or preparing several premixes which are pressed together.
- it can First pre-mixed, lightly pre-pressed to create a smooth and parallel to the Get molded bottom trending top, and after filling the second Premixed to the final molded article.
- Moldings can be precompressed after each addition of premix, before the molded body is finally pressed after the addition of the last premix.
- it can also be completely an intermediate compression can be dispensed with, so that only after filling in the last premix or feeding the last shaped core body, the direct pressing takes place.
- the end products of the method according to the invention can be predetermined Space shape and predetermined size can be made.
- This last embodiment covers the presentation form from tablets to compact cylinder pieces with one Ratio of height to diameter above 1.
- the molded body produced can assume any geometric shape, in particular concave, convex, biconcave, biconvex, cubic, tetragonal, orthorhombic, cylindrical, spherical, segment-like, disc-shaped, tetrahedral, dodecahedral, octahedral, conical, pyramidal, ellipsoid, five-, seven- and octagonal-prismatic and rhombohedral shapes are preferred.
- Completely irregular too Base areas such as arrow or animal shapes, trees, clouds, etc. can be realized. If the molded body produced has corners and edges, these are preferred rounded. As an additional optical differentiation, an embodiment with rounded Corners and chamfered (“chamfered”) edges preferred.
- the end products of the process according to the invention are produced by tableting; this method can optionally be used for the production of the core molding.
- methods of tableting according to the invention are preferred, which are characterized in that the compression in step a) and / or f) at compression pressures from 1 to 100 kNcm -2 , preferably from 1.5 to 50 kNcm -2 and in particular from 2 up to 25 kNcm -2 .
- step f) of the process according to the invention is an imperative process step, ie the process according to the invention falls into the group of tableting processes
- the core moldings can also be produced by other processes known to the person skilled in the art.
- a preferred way to get core moldings is to melt the ingredients and pour them into molds where they solidify.
- This preferred method, in which the core moldings are produced in step a) by casting, will always be of advantage where the contents of the core moldings are meltable. Since additional dissolution acceleration or ⁇ retardation effects can be brought about with certain fusible substances, this production process is preferred for the core moldings. Where the use of fusible matrix substances is prohibited for material or recipe reasons, sintering is another preferred method for producing the core moldings. Corresponding processes in which the core moldings are produced in step a) by sintering are also preferred.
- step f Further information on tableting for the production of core moldings in step a) of the inventive method are below in the detailed description of process step f).
- Another preferred production process for the core moldings a) is to provide this in the form of a capsule.
- Processes characterized by that the core molding is a capsule are also preferred embodiments of the present invention.
- the core moldings a) are produced certain substances common in washing or cleaning agents preferably in the Core moldings included.
- the method according to the invention is not limited to this. that only one type of core molding is used, all core molding contain the same active substance in the same amounts.
- a special feature occurs in the process according to the invention if only one core molding is transferred into the die: in the order of process steps a) -c) -d) -f) a tablet is obtained in which the core molding is on the top of the resulting Shaped body is localized. It can be beneficial for certain reasons first transfer a core molding into the empty die and then pre-mix it fill. This would correspond to a sequence of process steps a) -d) -c) -f), or in principle a method a) -b) -c) -f), in which step d) is dispensed with.
- Step d) is not carried out optionally, but is mandatory, steps c) and d) of the method according to the invention, if necessary, in reversed order be performed. This results in a shaped body in which the core shaped body adheres the bottom of the resulting molded body is located.
- the core molding a) contains surfactant (s) as an ingredient. These substances are described in detail below.
- Preferred levels of the core shaped body (s) of surfactant (s) are based on the individual core shaped body - at 0.5 to 80 wt .-%, preferably 1 to 70 wt .-% and in particular at 5 to 60% by weight.
- Processes according to the invention in which the core molding a) as an enzyme (e) ingredient contains are preferred according to the invention. These substances are also described in detail below.
- Preferred contents of the core molding (s) Enzyme (s) - based on the individual core moldings - are from 0.01 to 50% by weight, preferably 0.1 to 25% by weight and in particular 1 to 15% by weight.
- Processes which are characterized in that the core molding from step a) as Ingredient containing bleach and / or bleach activator (s) are also preferred.
- the representatives of these substance classes are also described in detail below.
- Preferred bleach contents of the core molding (s) are based on the individual core moldings - at 0.5 to 100% by weight, preferably at 1 to 90% by weight and especially at 5 to 80% by weight, while preferred levels of bleach activators in the range from 0.1 to 70% by weight, preferably from 0.5 to 50% by weight and in particular from 1 to 25% by weight.
- the Molded core a) as an ingredient disintegration aid and / or gas-generating systems contains.
- Preferred disintegration aid contents of the core molding (s) are - based on the individual core moldings - at 0.1 to 30% by weight, preferably 0.5 to 20% by weight and in particular 2.5 to 15% by weight, while shower systems advantageously in amounts of 1 to 80 wt .-%, preferably from 2.5 to 70% by weight and in particular from 5 to 60% by weight are used.
- shower systems advantageously in amounts of 1 to 80 wt .-%, preferably from 2.5 to 70% by weight and in particular from 5 to 60% by weight are used.
- shower systems advantageously in amounts of 1 to 80 wt .-%, preferably from 2.5 to 70% by weight and in particular from 5 to 60% by weight are used.
- shower systems advantageously in amounts of 1 to 80 wt .-%, preferably from 2.5 to 70% by weight and in particular from 5 to 60% by weight are used.
- Especially the combination of shower systems with enzymes is preferred.
- the core molding a) as a water softener ingredient and / or contains complexing agents are also preferred.
- a water softener for example, ethylenediaminetetraacetic acid (EDTA), nitrilotriacetate (NTA) and related substances, but also ion exchangers and other complexing agents, as they are described in detail below, can be used with preference.
- the core moldings can optionally be coated or be treated with encapsulants.
- base molding denotes a molding, which receives one or more cavities during its manufacturing process in which one or more core moldings can be inserted.
- the shape of the cavity (s) can also be freely selected within wide limits. For reasons Process economics have through holes, the openings of which are adjacent to one another lie opposite surfaces of the molded body, and troughs with an opening proven on one side of the molded body.
- the cavity has the Form a through hole, the openings of which are located at two opposite Molded surfaces are located.
- the shape of such a through hole can be chosen freely, with molded bodies are preferred in which the through hole circular, elliptical, triangular, rectangular, square, pentagonal, hexagonal, has heptagonal or octagonal horizontal sections.
- Completely irregular too Hole shapes such as arrow or animal shapes, trees, clouds, etc. can be realized.
- the shaped bodies in the case of square holes, those with rounded holes Corners and edges or with rounded corners and chamfered edges preferred.
- Shaped bodies with a rectangular or square base can be made and circular holes as well as round shaped bodies with octagonal holes, with no limit to the variety of possible combinations are set.
- Shaped articles with a hole are particularly preferred in which the shaped body base area and the hole cross-section have the same geometric shape, for example Shaped body with a square base and a centrally integrated square Hole.
- the moldings can also assume any geometric shape in this embodiment, in particular concave, convex, biconcave, biconvex, cubic, tetragonal, orthorhombic, cylindrical, spherical, segment-like, disc-shaped, tetrahedral, dodecahedral, octahedral, conical, pyramidal, ellipsoid, five-, seven- and octagonal-prismatic and rhombohedral shapes are preferred.
- Base areas such as arrow or animal shapes, trees, clouds, etc. can be realized. If the molded body has corners and edges, these are preferably rounded. As additional optical differentiation is an embodiment with rounded corners and chamfered (“chamfered”) edges are preferred.
- the shape of the trough can also be chosen freely, with molded bodies being preferred which have at least one trough a concave, convex, cubic, tetragonal, orthorhombic, cylindrical, spherical, segment-like, disc-shaped, tetrahedral, dodecahedral, octahedral, conical, pyramidal, ellipsoid, five-, seven- and octagonal-prismatic as well as rhombohedral shape.
- Completely irregular too Trough shapes such as arrow or animal shapes, trees, clouds, etc. can be realized.
- troughs are with rounded corners and edges or with rounded corners and chamfered edges preferred.
- Shape of the trough adapted to the horizontal cross-sectional area of the core molding In particularly preferred embodiments of the method according to the invention Shape of the trough adapted to the horizontal cross-sectional area of the core molding.
- the size of the trough or through hole compared to the total Shaped body depends on the intended use of the shaped body and according to the size of the second part to be inserted into the cavity. Depending on, whether a smaller or larger amount of active substance should be contained can The size of the cavity vary. Cleaning agents are independent of the intended use preferred, in which the volume ratio of the base molding to the cavity is 2: 1 to 100: 1, preferably 3: 1 to 80: 1, particularly preferably 4: 1 to 50: 1 and in particular 5: 1 to 30: 1.
- Shaped bodies in which the Area of the opening (s) of the cavity (s) 1 to 25%, preferably 2 to 20%, particularly preferably 3 to 15% and in particular 4 to 10% of the total surface of the shaped body accounts.
- the core moldings can completely fill the cavity; but it is also possible that the core moldings only partially touch the wall of the cavity with their outer surface. Also, the top of the cores need not be flush with the top of the trough, so that the cores can also protrude from the trough.
- Preferred processes are characterized in that the base moldings produced in step ii) have at least one cavity in which the core moldings are at least partially contained.
- ingredients in the core molding (s) or the tableting mixture or the base molding have no limits, so that all ingredients of detergents or cleaning agents can be contained in the end products of the process, for example anionic, non-ionic, cationic or amphoteric surfactants, builders, bleaching agents, bleach activators, bleaching catalysts, silver protection agents, enzymes, optical brighteners, dyes and fragrances, cobuilders, polymers, disintegration aids, soil release compounds, corrosion inhibitors, etc.
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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)
Abstract
Description
Es wurde nun gefunden, daß sich bestimmte Kernformen auch dann in großen Stückzahlen und mit hohen Geschwindigkeiten präzise zuführen lassen.
Wo sich der Einsatz schmelzbarer Matrixsubstanzen aus stofflichen oder rezepturellen Gründen verbietet, ist die Sinterung ein weiteres bevorzugtes Verfahren zur Herstellung der Kernformkörper. Entsprechende Verfahren, bei denen die Herstellung der Kernformkörper in Schritt a) durch Sintern erfolgt, sind ebenfalls bevorzugt.
Bezüglich der Auswahl und/oder Verteilung der Inhaltsstoffe in dem/den Kernformkörper(n) bzw. der Tablettiermischung oder dem Basisformkörper sind dem Fachmann keinerlei Grenzen gesetzt, so daß sämtliche Inhaltsstoffe von Wasch- oder Reinigungsmitteln in den Verfahrensendprodukten enthalten sein können, beispielsweise anionische, nichtionische, kationische oder amphotere Tenside, Gerüststoffe, Bleichmittel, Bleichaktivatoren, Bleichkatalysatoren, Silberschutzmittel, Enzyme, optische Aufheller, Farb- und Duftstoffe, Cobuilder, Polymere, Desintegrationshilfsmittel, soil-release-Verbindungen, Korrosionsinhibitoren usw..
Claims (8)
- Verfahren zur Herstellung von Wasch- oder Reinigungsmitteltabletten, bei dem vorgefertigte Formkörper ("Kerne") Tablettiermischungen und/oder vorgefertigten Tabletten ("Basisformkörpern") zugeführt werden, dadurch gekennzeichnet, daß die Kerne eine bikonvexe Form besitzen, wobei die konvexen Flächen gekappt sind, so daß sie jeweils in ein horizontales Plateau münden.
- Verfahren nach Anspruch 1, gekennzeichnet durch die Schrittea) Herstellung von Kernformkörpern, die Aktivsubstanz enthalten,b) optionales Einlegen eines oder mehrerer Kernformkörper aus Schritt a) in eine Matrize einer Tablettenpresse,c) Einfüllen mindestens eines teilchenförmigen Vorgemischs in die Matrize der Tablettenpresse,d) Zuführen mindestens eines Kernformkörpers aus Schritt a) in die Matrize der Tablettenpresse,e) optionale ein- oder mehrfache Wiederholung der Schritte c) und/oder d),f) Verpressen zu Formkörpern.
- Verfahren nach Anspruch 1, gekennzeichnet durch die Schrittei) Herstellung von Kernformkörpern, die Aktivsubstanz enthalten,ii) Herstellung von Basisformkörpern,iii) An- oder Einfügen bzw. ―kleben eines oder mehrerer Kernformkörper an bzw. in einen Kernformkörper.
- Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß die in Schritt ii) hergestellten Basisformkörper mindestens eine Kavität aufweisen, in der die Kernformkörper mindestens anteilsweise enthalten sind.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Kerne eine kreisrunde Horizontalfläche besitzen.
- Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Wölbungsradius der konvexen Flächen das 0,5- bis 5-fache, vorzugsweise das ein- bis 3-fache und insbesondere das 1,5- bis zweifache des Durchmessers der Kerne beträgt.
- Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Durchmesser der Plateaus das 0,1- bis 0,7-fache, vorzugsweise das 0,2- bis 0,6-fache, besonders bevorzugt das 0,25- bis 0,5-fache und insbesondere das 0,3- bis 0,4-fache des Durchmessers der Kerne beträgt.
- Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Kerne zusätzlich eine vertikale Randfläche besitzen, deren Höhe das 0,1- bis 0,9-fache, vorzugsweise das 0,2- bis 0,7-fache, besonders bevorzugt das 0,25- bis 0,6-fache und insbesondere das 0,3- bis 0,5-fache der gesamten Tablettenhöhe beträgt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2000162262 DE10062262A1 (de) | 2000-12-14 | 2000-12-14 | Zuführbare Tablettenkerne" |
DE10062262 | 2000-12-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1215278A1 true EP1215278A1 (de) | 2002-06-19 |
Family
ID=7667084
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP01128882A Withdrawn EP1215278A1 (de) | 2000-12-14 | 2001-12-05 | Zuführbare Tablettenkerne |
Country Status (2)
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EP (1) | EP1215278A1 (de) |
DE (1) | DE10062262A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008057739A1 (de) * | 2008-11-17 | 2010-05-20 | Buck-Chemie Gmbh | Beschichteter Reinigungsmittelformförper |
EP3591029A1 (de) * | 2018-07-02 | 2020-01-08 | Dalli-Werke GmbH & Co. KG | Waschmitteltabletten mit konvexer struktur |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015215135A1 (de) | 2015-08-07 | 2017-02-09 | Henkel Ag & Co. Kgaa | WC-Stein und WC-Körbchen |
Citations (8)
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---|---|---|---|---|
EP0055100A1 (de) * | 1980-12-18 | 1982-06-30 | Jeyes Group Limited | Toilettenreinigungsmittelblöcke |
EP0481547A1 (de) * | 1990-10-17 | 1992-04-22 | Unilever N.V. | Detergenstabletten für Geschirrspülmaschinen |
WO1999006522A1 (en) * | 1997-08-02 | 1999-02-11 | The Procter & Gamble Company | Detergent tablet |
WO1999027067A1 (en) * | 1997-11-26 | 1999-06-03 | The Procter & Gamble Company | Detergent tablet |
WO1999027063A1 (en) * | 1997-11-26 | 1999-06-03 | The Procter & Gamble Company | Multi-layer detergent tablet having both compressed and non-compressed portions |
WO2000044869A1 (en) * | 1999-01-26 | 2000-08-03 | Unilever Plc | Detergent tablets |
DE10003429A1 (de) * | 1999-03-03 | 2000-09-07 | Henkel Kgaa | Wasch- oder Reinigungsmittelportion mit kontrollierter Wirkstofffreisetzung |
WO2001042416A1 (de) * | 1999-12-10 | 2001-06-14 | Henkel Kommanditgesellschaft Auf Aktien | Pressverfahren für mehrphasige formkörper |
-
2000
- 2000-12-14 DE DE2000162262 patent/DE10062262A1/de not_active Ceased
-
2001
- 2001-12-05 EP EP01128882A patent/EP1215278A1/de not_active Withdrawn
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0055100A1 (de) * | 1980-12-18 | 1982-06-30 | Jeyes Group Limited | Toilettenreinigungsmittelblöcke |
EP0481547A1 (de) * | 1990-10-17 | 1992-04-22 | Unilever N.V. | Detergenstabletten für Geschirrspülmaschinen |
WO1999006522A1 (en) * | 1997-08-02 | 1999-02-11 | The Procter & Gamble Company | Detergent tablet |
WO1999027067A1 (en) * | 1997-11-26 | 1999-06-03 | The Procter & Gamble Company | Detergent tablet |
WO1999027063A1 (en) * | 1997-11-26 | 1999-06-03 | The Procter & Gamble Company | Multi-layer detergent tablet having both compressed and non-compressed portions |
WO2000044869A1 (en) * | 1999-01-26 | 2000-08-03 | Unilever Plc | Detergent tablets |
WO2000044870A1 (en) * | 1999-01-26 | 2000-08-03 | Unilever Plc | Detergent tablets |
DE10003429A1 (de) * | 1999-03-03 | 2000-09-07 | Henkel Kgaa | Wasch- oder Reinigungsmittelportion mit kontrollierter Wirkstofffreisetzung |
WO2001042416A1 (de) * | 1999-12-10 | 2001-06-14 | Henkel Kommanditgesellschaft Auf Aktien | Pressverfahren für mehrphasige formkörper |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008057739A1 (de) * | 2008-11-17 | 2010-05-20 | Buck-Chemie Gmbh | Beschichteter Reinigungsmittelformförper |
EP3591029A1 (de) * | 2018-07-02 | 2020-01-08 | Dalli-Werke GmbH & Co. KG | Waschmitteltabletten mit konvexer struktur |
Also Published As
Publication number | Publication date |
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DE10062262A1 (de) | 2002-07-04 |
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