EP0970181A1 - Pressed piece which disintegrates in liquids - Google Patents

Pressed piece which disintegrates in liquids

Info

Publication number
EP0970181A1
EP0970181A1 EP98916813A EP98916813A EP0970181A1 EP 0970181 A1 EP0970181 A1 EP 0970181A1 EP 98916813 A EP98916813 A EP 98916813A EP 98916813 A EP98916813 A EP 98916813A EP 0970181 A1 EP0970181 A1 EP 0970181A1
Authority
EP
European Patent Office
Prior art keywords
compact
cellulose
containing material
compact according
compacted
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.)
Granted
Application number
EP98916813A
Other languages
German (de)
French (fr)
Other versions
EP0970181B1 (en
Inventor
Josef Otto Rettenmaier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
J Rettenmaier and Soehne GmbH and Co KG
Original Assignee
Henkel AG and Co KGaA
J Rettenmaier and Soehne GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
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Application filed by Henkel AG and Co KGaA, J Rettenmaier and Soehne GmbH and Co KG filed Critical Henkel AG and Co KGaA
Publication of EP0970181A1 publication Critical patent/EP0970181A1/en
Application granted granted Critical
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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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/22—Carbohydrates or derivatives thereof
    • C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • 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
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/38—Products with no well-defined composition, e.g. natural products
    • C11D3/382—Vegetable products, e.g. soya meal, wood flour, sawdust
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/40—Products in which the composition is not well defined
    • C11D7/44—Vegetable products

Definitions

  • the invention relates to a compact of the type corresponding to the preamble of claim 1.
  • Amount of liquid or a certain amount of powder or granules should be put in the washing machine. Significant errors are possible here if the user uses too much or too little detergent, either accidentally or deliberately. Soiling is also due to the
  • the liquid is water in most cases, but the invention is not so limited. Rather, it can also be used with other liquids, for example alcohol or the like.
  • the invention has for its object to design a generic compact so that it quickly disintegrates after introduction into the liquid and releases the ingredients so that they can be distributed in the liquid.
  • the compact is designed so that a compact or a number of compacts contains the amount of ingredients required for a batch.
  • the portioning is carried out by adding one or more of these compacts, that is to say simply by counting, but no longer by metering in a certain amount of a liquid or free-flowing agent.
  • the compact must be such that it survives handling during transport, storage and metering without chipping and without substantial abrasion, but on the other hand dissolves in water with sufficient speed.
  • the disintegrant is provided in the form of the small-part cellulose-containing material, which, like a medical tablet, ensures that, on contact with the liquid, in particular the water, an increase in volume of the small-part particles within the mixture of the ingredients and the disintegrant in the Compact cracks occur, through which the water quickly penetrates into the interior of the compact and causes its disintegration.
  • the disintegrant contained in the compact in the form of the cellulose-containing material is of particular importance.
  • the detergents it was possible to produce usable compacts which would disintegrate in the water in the periods in question.
  • the small-scale cellulose-containing material is compacted before being added to the ingredients, for example the powder detergent.
  • the term "compacting" is intended to mean the exertion of pressure on the cellulose-containing material which compresses the volume of the cellulose-containing material without the fibers being destroyed.
  • the particles are said to have been deformed during the compaction, in contrast to the aggregation, in which there is only an attachment of the particles without a substantial change in their shape.
  • the compacting in this sense is said to increase before the disintegrant thus produced is admixed the ingredients. Then when the compact comes into contact with water or other liquid, the cellulose-containing material jumps from its compacted state back to a state with an open, relaxed volume. Whether this process is based on capillary or other forces can be left open. In any case, the increase in volume is much greater than that which results from pure swelling of the cellulose-containing material.
  • Granulate particles produced that form larger aggregates from a variety of starting particles. These larger aggregates, ie the granulate particles, are added to the ingredients, and the mixture is pressed into the compacts.
  • the "cellulose-containing materials" to be used as disintegrants according to the invention are said to be those in which the cellulose is at least predominantly chemically unchanged. It is known (see “Römpp-Chemie-Lexikon", 9th edition (1995), page 4990, keyword “detergent”) to add so-called graying inhibitors to detergents, ie dirt carriers which prevent the detached from the fiber of the laundry from the dirt Bring the liquor back onto the fiber and form a gray coating on it. Cellulose derivatives are used for these purposes, in particular carboxymethyl cellulose. However, this is a chemically modified cellulose that cannot function as a disintegrant.
  • An important dimension is the density of the compacted cellulosic material according to claim 6, because it is a measure of the suitable compression of the material, in which the right compromise between for Manageability sufficient strength of the compact and sufficient disintegration is present.
  • the compacted particles of the cellulose-containing material ie the granulate
  • the most appropriate particle size also depending on the size of the Compacts and indirectly also depends on the nature of the ingredients of the compact, insofar as, for example, different detergents have different compositions with different pressing and explosive properties.
  • the compact additionally comprises a proportion of small-part, non-compacted cellulose-containing material (claim 10).
  • this portion does not act as an explosive, it can develop a kind of wicking action in the pressed mass and be useful for the faster penetration of the water into the interior of the compact.
  • the proportion by weight of the non-compacted cellulose-containing material in the finished compact can be 1 to 3 percent (claim 11).
  • the compacted cellulose-containing material contained in the compact can have a coating with a swelling or thickening agent (claim 12).
  • Such agents are known per se as tablet disintegrants in the pharmaceutical sector (see “Römpp-Che- mie lexicon “9th edition (1995), page 4440, keyword” tablet disintegrant ").
  • the cellulose-containing material contained in the compact has a coating with a surfactant (claim 13), which can make up a weight fraction of 0.5 to 5.0 percent of the finished compact (claim 14) and in addition to that in powder detergent already contained surfactant in the compact.
  • the surfactant is said to promote the distribution of the liquid along the surface of the particles of the cellulosic material.
  • the dispersing properties of the cellulosic material can be increased if it is at least partially fibrillated, i.e. is broken down into bundles of a few parallel cellulose fibers each (claim 15).
  • the compacts should hold together only by pressing, but not via liquid, subsequently hardening components that would delay the disintegration of the compact in the liquid or water.
  • TMP Thermo Mechanical Pulp
  • CTMP Chemo Thermo Mechanical Pulp
  • the dimensions of the compact under consideration are characterized by a largest dimension of approximately 1 to 10 cm, preferably 2 to 4 cm.
  • the invention also extends to a detergent in the form according to claim 20.
  • Fig. 1 shows a possible way of compacting cellulosic material
  • 2 shows a compacted granulate particle
  • Fig. 3 shows a detergent compact
  • a bed 1 of cellulose-containing material in the exemplary embodiment TMP, is fed to a pair of press rolls 2, into which a compacting takes place while compressing the volume of the individual particles and connecting them to form a type of coherent, compressed web 3.
  • 4 symbolizes the shredding of the web 3 into granules 5.
  • a single granule 5 is shown in FIG. 2. It contains a large number of finely divided TMP Parti- no 6, the particle size of which is about 50 ⁇ m, i.e. the
  • TMP material has a grain size distribution, the maximum of which is around 50 ⁇ m.
  • the individual very finely divided TMP particles 6 hold together through the pressure experienced in the pair of press rolls 2. At the same time, the individual particles 6 in the press nip have been compressed relative to their original shape, i.e. they have been compacted.
  • the granulate particles 5 in turn have a grain size distribution with a maximum at about 2 mm, i.e. the size of the granulate particles 5 is about 2 orders of magnitude larger than the size of the very finely divided TMP particles.
  • the granulate particles 5 may also contain non-compacted cellulose-containing particles 7, which are indicated by short, straight lines and which may have a coating with a surfactant in order to promote the penetration of the liquid, in particular the washing water.
  • the detergent composition itself is in the form of a powder / granule mixture.
  • the individual detergent particles are designated 8 in FIG. 3.
  • the detergent composition is mixed with the granulate particles 5 made of TMP, which are shown in FIG. 3 as small circles, and then pressed into a compact 10, which according to FIG. 3 is designed as a small cuboid with edge lengths of 2 to 3 cm.
  • TMP granulate particles 5 made of TMP
  • the pressing of the compacts 10 takes place in such a way that they do not crumble during handling, but that they disintegrate almost immediately when introduced into the liquid and release the detergent composition. This is caused by the granulate particles 5, which immediately regain their former shape in contact with the wash water, i.e. undo the compaction and thereby increase in volume. If there is a 20 percent increase in volume and the individual particle is, for example, 2 mm in size, an expansion of 0.4 mm occurs when it comes into contact with the water, which is sufficient to bond the composite of the Blowing the compacts 10 locally and releasing the detergent particles.
  • the granulate particles 5 themselves disintegrate in contact with the washing water, so that finally only the individual particles 6 and 7 of the cellulose-containing material are present, which are chemically essentially inert and also do not otherwise interfere with the washing process.

Abstract

The invention relates to a pressed piece consisting of ingredients in powder and/or granular form, which contains particles made of a material containing cellulose, particularly in compacted form, which act as an explosive agent. TMP and CTMP can be used as the cellulose-containing material.

Description

In Flüssigkeit zerfallender Preßling Liquid disintegrating compact
Die Erfindung bezieht sich auf einen Preßling der dem Oberbegriff des Anspruchs 1 entsprechenden Art.The invention relates to a compact of the type corresponding to the preamble of claim 1.
Die Darbietung in Form von Preßlingen dieser Art ist bei Spülmitteln bereits bekannt. Diese werden zur Erleichterung der Handhabung und der Dosierung in Form von sogenannten "Tabs" (von "Tabletten") angeboten, die Größe und Gestalt von Pralinen aufweisen und eine für einen Spülgang in der Spülmaschine ausreichende Menge an Spülmittel ent- halten. Obwohl die Spülmittel-Preßlinge durch das Pressen wie kleine Steine wirken, lösen sie sich, ohne eigentlich zu zerfallen, in strömendem warmem Wasser, von außen nach innen fortschreitend, rasch und vollständig auf, und zwar durch Lösung der Inhaltsstoffe in dem Wasser. Diese Eigen- schaft der Spülmittelpreßlinge ist auf die Zusammensetzung von Spülmitteln zurückzuführen, die keine stark unterschiedlichen Bestandteile und insbesondere keine unlöslichen Bestandteile enthalten. Das Problem einer einfach und sicher zu handhabenden Dosierung stellt sich nicht nur bei Spülmitteln, sondern auch bei anderen Stoffen, und zwar nicht nur im Haushalt, sondern auch im gewerblichen Bereich. Beispiele sind zum Beispiel FarbstoffZusammensetzungen für das Färben von Textilien, sonstige Chemikalien, aus denen Lösungen bestimmter Konzentrationen zu bereiten sind und insbesondere Waschmittel für textiles Waschgut, vorzugsweise im Haushalts- und Gewerbebereich, zum Beispiel Kleidungsstücke, Bett- und Tischwäsche, Handtücher und dergleichen. Waschmittel für diese Zwecke werden bisher nur in fließ- oder rieselfähiger Form in den Handel gebracht, also als Flüssigkeit und überwiegend als Pulver oder Granulat. Diese Form der Konfektionierung erfordert eine vom Anwender vorzunehmende Portionierung, d.h. es muß eine bestimmteThe presentation in the form of compacts of this type is already known for detergents. To facilitate handling and metering, these are offered in the form of so-called "tabs" (of "tablets"), which have the size and shape of chocolates and contain a sufficient amount of detergent for a wash cycle in the dishwasher. Although the detergent pellets appear like small stones when pressed, they dissolve quickly and completely in flowing warm water, progressively from the outside inwards, without actually disintegrating, by dissolving the ingredients in the water. This property of the detergent pellets can be attributed to the composition of detergents which do not contain any very different constituents and in particular no insoluble constituents. The problem of an easy and safe to use dosage arises not only with detergents, but also with other substances, not only in the household, but also in the commercial sector. Examples are, for example, dye compositions for dyeing textiles, other chemicals from which solutions of certain concentrations have to be prepared and in particular detergents for textile laundry, preferably in the household and commercial sectors, for example clothing, bed and table linen, towels and the like. So far, detergents for these purposes have only been on the market in flowable or free-flowing form, that is to say as a liquid and predominantly as powder or granules. This form of packaging requires a portioning to be carried out by the user, ie it must be specific
Menge Flüssigkeit oder eine bestimmte Menge Pulver oder Granulat in die Waschmaschine gegeben werden. Hierbei sind erhebliche Fehler möglich, wenn der Anwender zuviel oder zuwenig Waschmittel verwendet, sei es versehentlich, sei es absichtlich. Auch sind Verschmutzungen durch bei derAmount of liquid or a certain amount of powder or granules should be put in the washing machine. Significant errors are possible here if the user uses too much or too little detergent, either accidentally or deliberately. Soiling is also due to the
Dosierung des Waschmittels verschüttete Anteile häufig.Dosage of detergent often spills.
Die Technik der Darbietung in Preßlingen, die jeweils eine größere, zum Beispiel für einen Waschgang ausreichende Menge der Inhaltsstoffe enthalten, wäre auch für Waschmittel von großer Bedeutung, da sich dann die Dosierung auf ein Abzählen beschränken könnte und keine Wäge- oder Volumenmeßvorgänge notwendig wären. Die Waschmittel unterscheiden sich jedoch von den Spülmitteln dadurch, daß sie sich wesentlich schneller in der Waschflüssigkeit verteilen müssen und ihre Inhaltsstoffe nicht nach und nach abgegeben werden sollen. Auch enthalten die Waschmittel Bestandteile, die sich im Wasser nicht lösen. Die Unterschiede in der Struktur der Inhaltsstoffe haben dazu ge- führt, daß bisher den Spülmitteltabs vergleichbare Portionierungen bei Waschmitteln nicht möglich gewesen sind. Ähnliche Probleme liegen auch bei einer ganzen Reihe von anderen chemischen Inhaltsstoffen vor, die dosiert in eine Flüssigkeit eingebracht werden müssen.The technique of presentation in pellets, each containing a larger amount of the ingredients, for example sufficient for a wash cycle, would also be of great importance for detergents, since the dosage could then be limited to counting and no weighing or volume measurement processes would be necessary. However, the detergents differ from the detergents in that they have to be distributed much faster in the washing liquid and their ingredients should not be gradually released. The detergents also contain components that do not dissolve in the water. The differences in the structure of the ingredients have meant that portions of detergents comparable to the detergent tablets have not been possible up to now. Similar problems also exist with a whole range of other chemical ingredients that have to be dosed into a liquid.
Die Flüssigkeit ist in den meisten Fällen Wasser, doch ist die Erfindung darauf nicht beschränkt. Sie kann vielmehr auch bei anderen Flüssigkeiten, zum Beispiel Alkohol oder dergleichen Verwendung finden.The liquid is water in most cases, but the invention is not so limited. Rather, it can also be used with other liquids, for example alcohol or the like.
Der Erfindung liegt die Aufgabe zugrunde, einen gattungsgemäßen Preßling so ausgestalten, daß er nach dem Einbringen in die Flüssigkeit rasch desintegriert und die Inhaltsstoffe freisetzt, so daß sie in der Flüssigkeit verteilbar sind.The invention has for its object to design a generic compact so that it quickly disintegrates after introduction into the liquid and releases the ingredients so that they can be distributed in the liquid.
Diese Aufgabe wird durch die in Anspruch 1 wiedergegebene Erfindung gelöst.This object is achieved by the invention reproduced in claim 1.
Der Preßling wird so ausgelegt, daß ein Preßling oder eine Anzahl von Preßlingen die für einen Ansatz benötigte Menge an Inhaltsstoffen enthält. Die Portionierung geschieht durch Zugabe eines oder mehrerer dieser Preßlinge, also auf einfache Weise durch Abzählen, aber nicht mehr durch Zumessen einer bestimmten Menge eines flüssigen oder rie- seifähigen Mittels. Der Preßling muß so beschaffen sein, daß er die Handhabung beim Transport, bei der Lagerung und bei der Zumessung ohne Absplitterungen und ohne wesentlichen Abrieb übersteht, aber andererseits im Wasser sich mit hinreichender Schnelligkeit auflöst. Hierfür ist das Sprengmittel in Gestalt des kleinteiligen cellulosehalti- gen Materials vorgesehen, welches wie bei einer medizinischen Tablette dafür sorgt, daß beim Kontakt mit der Flüssigkeit, insbesondere dem Wasser, durch eine Volumenzunahme der kleinteiligen Partikel innerhalb der Mischung der Inhaltsstoffe und des Sprengmittels in dem Preßling Risse auftreten, durch die das Wasser rasch in das Innere des Preßlings eindringt und dessen Zerfall herbeiführt.The compact is designed so that a compact or a number of compacts contains the amount of ingredients required for a batch. The portioning is carried out by adding one or more of these compacts, that is to say simply by counting, but no longer by metering in a certain amount of a liquid or free-flowing agent. The compact must be such that it survives handling during transport, storage and metering without chipping and without substantial abrasion, but on the other hand dissolves in water with sufficient speed. For this purpose, the disintegrant is provided in the form of the small-part cellulose-containing material, which, like a medical tablet, ensures that, on contact with the liquid, in particular the water, an increase in volume of the small-part particles within the mixture of the ingredients and the disintegrant in the Compact cracks occur, through which the water quickly penetrates into the interior of the compact and causes its disintegration.
Wenn auch die Erfindung eine über den Bereich der Wasch- mittel hinausgehende Bedeutung hat, so sind die Waschmittel doch ein wichtiges Anwendungsbeispiel .Although the invention has an importance that goes beyond the field of detergents, detergents are an important example of use.
Die Herstellung von Preßlingen aus Waschmittel ist nicht einfach. Das Verpressen eines Waschpulvers zu einem eini- germaßen haltbaren Preßling, der sich trotzdem hinreichend rasch auflöst, ist bisher nicht möglich gewesen. Bei entsprechend hohen Preßdrücken läßt sich zwar ein fester Preßling herstellen, der aber in Wasser in den in Betracht kommenden Zeiträumen nicht zerfällt, um die Inhaltsstoffe freizugeben.The production of compacts from detergent is not easy. So far, it has not been possible to compress a washing powder into a somewhat durable compact which nevertheless dissolves sufficiently quickly. A solid compact can be produced at correspondingly high pressing pressures, but it does not disintegrate in water in the periods in question in order to release the ingredients.
Unter diesem Aspekt kommt dem in dem Preßling enthaltenen Sprengmittel in Gestalt des cellulosehaltigen Materials eine besondere Bedeutung zu. Bei den Waschmitteln ließen sich damit gebrauchsfähige Preßlinge herstellen, die in den in Betracht kommenden Zeiträumen im Wasser zerfallen.From this point of view, the disintegrant contained in the compact in the form of the cellulose-containing material is of particular importance. In the case of the detergents, it was possible to produce usable compacts which would disintegrate in the water in the periods in question.
Eine sehr wichtige Weiterbildung der Erfindung besteht darin, daß das kleinteilige cellulosehaltige Material, vor der Beimischung zu den Inhaltsstoffen, also zum Beispiel zu dem pulverförmigen Waschmittel, ko paktiert ist.A very important development of the invention is that the small-scale cellulose-containing material is compacted before being added to the ingredients, for example the powder detergent.
Der Ausdruck "Kompaktieren" soll hierbei die Ausübung eines Drucks auf das cellulosehaltige Material bedeuten, der das Volumen des cellulosehaltigen Materials zusammendrückt, ohne daß die Fasern zerstört werden. Die Partikel sollen also bei der Kompaktierung deformiert worden sein, im Gegensatz zur Aggregation, bei der lediglich eine Anlagerung der Partikel ohne wesentliche Änderung ihrer Gestalt gegeben ist. Die Kompaktierung in diesem Sinne soll vor der Beimischung des so erzeugten Sprengmittels zu den Inhaltsstoffen vorgenommen werden. Wenn dann der Preßling in Kontakt mit Wasser oder der sonstigen Flüssigkeit kommt, springt das cellulosehaltige Material aus seinem kompaktierten Zustand wieder in einen Zustand mit offenem, entspanntem Volumen auf . Ob dieser Vorgang auf kapillaren oder anderen Kräften beruht, kann dahinstehen. Jedenfalls ist die Volumenvergrößerung wesentlich stärker als diejenige, die bei einer reinen Quellung des cellulosehaltigen Materials entsteht.The term "compacting" is intended to mean the exertion of pressure on the cellulose-containing material which compresses the volume of the cellulose-containing material without the fibers being destroyed. The particles are said to have been deformed during the compaction, in contrast to the aggregation, in which there is only an attachment of the particles without a substantial change in their shape. The compacting in this sense is said to increase before the disintegrant thus produced is admixed the ingredients. Then when the compact comes into contact with water or other liquid, the cellulose-containing material jumps from its compacted state back to a state with an open, relaxed volume. Whether this process is based on capillary or other forces can be left open. In any case, the increase in volume is much greater than that which results from pure swelling of the cellulose-containing material.
Wichtig ist auch die Bereitstellung des cellulosehaltigen Materials als Granulat (Anspruch 4).It is also important to provide the cellulose-containing material as granules (claim 4).
Es werden also aus dem feinstteiligen, zum Beispiel gemah- lenen, Ausgangsmaterial bei oder nach der KompaktierungThis means that the finely divided, for example milled, raw material is used during or after compacting
Granulatpartikel hergestellt, die größere Aggregate aus einer Vielzahl von Ausgangsteilchen bilden. Diese größeren Aggregate, also die Granulatpartikel, werden den Inhaltsstoffen beigemischt, und es wird die Mischung zu den Preß- lingen verpreßt.Granulate particles produced that form larger aggregates from a variety of starting particles. These larger aggregates, ie the granulate particles, are added to the ingredients, and the mixture is pressed into the compacts.
Der Sinn dieser Maßnahmen besteht darin, daß das einzelne feinste Ausgangsteilchen des cellulosehaltigen Materials in Kontakt mit der Flüsskgiet zwar die gleiche relative Volumenvergrößerung erfährt wie ein größeres Aggregat, daß aber die absolute Volumenvergrößerung eines feinsten Aus- gangsteilchens zu gering ist, um in dem Material des Preßlings eine für die Rißbildung ausreichende lokale Ausdehnung zustandezubringen. In die Granulatpartikel addieren sich die Einzelbeträge zu einer makroskopischen lokalenThe purpose of these measures is that the individual finest starting particle of the cellulose-containing material in contact with the liquid has the same relative volume increase as a larger aggregate, but that the absolute volume increase of a very fine starting particle is too small to be in the material of the Bring compact local expansion sufficient for crack formation. In the granulate particles, the individual amounts add up to a macroscopic local one
Dehnung mit ausreichender Sprengwirkung.Elongation with sufficient explosive effect.
Die erfindungsgemäß als Sprengmittel einzusetzenden "cellulosehaltigen Materialien" sollen solche sein, in denen die Cellulose zumindest überwiegend chemisch unverändert noch vorhanden ist. Es ist bekannt (siehe "Römpp-Chemie-Lexikon" , 9. Auflage (1995), Seite 4990, Stichwort "Waschmittel") Waschmitteln sogenannte Vergrauungsinhibitoren zuzusetzen, d.h. Schmutzträger, die verhindern, daß der von der Faser des Waschguts abgelöste Schmutz aus der Flotte wieder auf die Faser aufzieht und auf dieser einen grauen Überzug bildet. Für diese Zwecke werden Cellulosederivate eingesetzt, insbesondere Carboxymethylcellulose . Es handelt sich hierbei aber um eine chemisch veränderte Cellulose, die eine Funktion als Sprengmittel nicht auszuüben vermag.The "cellulose-containing materials" to be used as disintegrants according to the invention are said to be those in which the cellulose is at least predominantly chemically unchanged. It is known (see "Römpp-Chemie-Lexikon", 9th edition (1995), page 4990, keyword "detergent") to add so-called graying inhibitors to detergents, ie dirt carriers which prevent the detached from the fiber of the laundry from the dirt Bring the liquor back onto the fiber and form a gray coating on it. Cellulose derivatives are used for these purposes, in particular carboxymethyl cellulose. However, this is a chemically modified cellulose that cannot function as a disintegrant.
Um bei Waschmitteln, wenn diese zu einem Preßling ausreichender Festigkeit notwendige Pressung erfahren haben, die erforderliche rasche Auflösung zu erreichen, bedarf es nicht nur eines Sprengmittels besonderer Wirksamkeit, sondern auch eines solchen, welches sich chemisch beim Waschvorgang und auch anschließend nach der Wäsche auf dem Waschgut möglichst wenig bemerkbar macht. Beides wird durch die Verwendung des cellulosehaltigen Materials ins- besondere in kompaktierter Form als Sprengmittel gewährleistet. Das cellulosehaltige Material ist in Waschlösungen praktisch inert und tritt auf dem Waschgut praktisch nicht in Erscheinung.In order to achieve the required rapid dissolution in detergents, if they have been pressed to a compact of sufficient strength, not only a disintegrant of particular effectiveness is required, but also one which is chemically active during the washing process and also after washing on the Makes laundry as little noticeable as possible. Both are guaranteed by the use of the cellulose-containing material, especially in compact form as an explosive. The cellulose-containing material is practically inert in washing solutions and practically does not appear on the laundry.
Eine Teilchengröße des Ausgangsmaterials, welches nach demA particle size of the starting material, which after the
Kompaktieren in größeren Granulatpartikeln vorliegt, von 40 - 60 μm hat sich für Waschmittel als zweckmäßig erwiesen (Anspruch 5). Feinstteilige cellulosehaltige Ausgangsmaterialien dieser Kornfeinheit lassen sich mit noch trag- barem Zerkleinerungsaufwand herstellen und treten auf demCompacting in larger granulate particles, from 40 to 60 μm has proven to be expedient for detergents (claim 5). Finely divided cellulose-containing raw materials of this grain size can be produced with a still reasonable size reduction and appear on the
Waschgut praktisch nicht in Erscheinung.Laundry does not appear practically.
Eine wichtige Bemessung ist die Dichte des kompaktierten cellulosehaltigen Materials nach Anspruch 6, weil sie ein Maß für die geeignete Zusammenpressung des Materials darstellt, bei der der richtige Kompromiß zwischen für die Handhabbarkeit ausreichender Festigkeit des Preßlings und ausreichender Zerfallsbereitwilligkeit vorliegt.An important dimension is the density of the compacted cellulosic material according to claim 6, because it is a measure of the suitable compression of the material, in which the right compromise between for Manageability sufficient strength of the compact and sufficient disintegration is present.
Gemäß Anspruch 7 können die kompaktierten Partikel des cellulosehaltigen Materials, also das Granulat, eine Partikelgröße von 0,2 bis 6,0mm aufweisen, insbesondere von 0,3 bis 1,5mm (Anspruch 8), wobei die zweckmäßigste Partikelgröße auch von der Größe des Preßlings und indirekt auch von der Art der Inhaltsstoffe des Preßlings abhängt, insofern zum Beispiel verschiedene Waschmittel verschiedene Zusammensetzungen mit verschiedenen Preß- und Sprengeigenschaften aufweisen.According to claim 7, the compacted particles of the cellulose-containing material, ie the granulate, can have a particle size of 0.2 to 6.0 mm, in particular 0.3 to 1.5 mm (claim 8), the most appropriate particle size also depending on the size of the Compacts and indirectly also depends on the nature of the ingredients of the compact, insofar as, for example, different detergents have different compositions with different pressing and explosive properties.
Gemäß Anspruch 9 kann der Gewichtsanteil des kompaktierten cellulosehaltigen Materials an dem fertigen Preßling 3 bisAccording to claim 9, the proportion by weight of the compacted cellulose-containing material in the finished compact 3 to
6 Prozent betragen.6 percent.
Es kann sich auch empfehlen, daß der Preßling zusätzlich einen Anteil an kleinteiligem nicht-kompaktierten cellulo- sehaltigen Material umfaßt (Anspruch 10) .It can also be recommended that the compact additionally comprises a proportion of small-part, non-compacted cellulose-containing material (claim 10).
Dieser Anteil wirkt zwar nicht als Sprengmittel, kann aber in der gepreßten Masse eine Art Dochtwirkung entfalten und für das schnellere Vordringen des Wassers in das Innere des Preßlings nützlich sein.Although this portion does not act as an explosive, it can develop a kind of wicking action in the pressed mass and be useful for the faster penetration of the water into the interior of the compact.
Der Gewichtsanteil des nicht-kompaktierten cellulosehaltigen Materials an dem fertigen Preßling kann 1 bis 3 Prozent betragen (Anspruch 11) .The proportion by weight of the non-compacted cellulose-containing material in the finished compact can be 1 to 3 percent (claim 11).
Das in dem Preßling enthaltene kompaktierte cellulosehaltige Material kann eine Beschichtung mit einem Quell- bzw. Verdickungsmittel aufweisen (Anspruch 12).The compacted cellulose-containing material contained in the compact can have a coating with a swelling or thickening agent (claim 12).
Derartige Mittel sind für sich genommen als Tabletten- sprengmittel im Pharmabereich bekannt (siehe "Römpp-Che- mie-Lexikon" 9. Auflage (1995), Seite 4440, Stichwort "Tablettensprengmittel" ) .Such agents are known per se as tablet disintegrants in the pharmaceutical sector (see "Römpp-Che- mie lexicon "9th edition (1995), page 4440, keyword" tablet disintegrant ").
Weiterhin kann sich empfehlen, daß das in dem Preßling enthaltene cellulosehaltige Material eine Beschichtung mit einem Tensid aufweist (Anspruch 13), welches einen Gewichtsanteil von 0,5 bis 5,0 Prozent des fertigen Preßlings ausmachen kann (Anspruch 14) und zusätzlich zu dem im pulverförmigen Waschmittel schon enthaltenen Tensid in dem Preßling vorhanden ist. Das Tensid soll die Verteilung der Flüssigkeit entlang der Oberfläche der Partikel des cellulosehaltigen Materials fördern.It may further be recommended that the cellulose-containing material contained in the compact has a coating with a surfactant (claim 13), which can make up a weight fraction of 0.5 to 5.0 percent of the finished compact (claim 14) and in addition to that in powder detergent already contained surfactant in the compact. The surfactant is said to promote the distribution of the liquid along the surface of the particles of the cellulosic material.
Die Dispergiereigenschaften des cellulosehaltigen Materi- als können gesteigert werden, wenn dieses zumindest teilweise fibrilliert ist, d.h. bis auf Bündel aus jeweils wenigen parallelliegenden Cellulosefasern zerkleinert ist (Anspruch 15) .The dispersing properties of the cellulosic material can be increased if it is at least partially fibrillated, i.e. is broken down into bundles of a few parallel cellulose fibers each (claim 15).
Zur Erzielung einer ausreichenden Dispergierbarkeit, d.h. eines alsbaldigen Zerfalls des Preßlings nach dem Einbringen in die Flüssigkeit, empfiehlt es sich ihn aus einer Mischung der pulverförmigen oder granulatartigen Inhaltsstoffe mit dem kleinteiligen cellulosehaltigen Material trocken bzw. erdfeucht zu pressen.To achieve sufficient dispersibility, i.e. In the event of an immediate disintegration of the compact after it has been introduced into the liquid, it is advisable to press it dry or earth-moist from a mixture of the pulverulent or granular ingredients with the small-scale cellulose-containing material.
Die Preßlinge sollen also nur durch die erfolgte Pressung zusammenhalten, nicht aber über flüssige, anschließend erhärtende Anteile, die den Zerfall des Preßlings in der Flüssigkeit bzw. dem Wasser verzögern würden.The compacts should hold together only by pressing, but not via liquid, subsequently hardening components that would delay the disintegration of the compact in the liquid or water.
Bei den Entwicklungsarbeiten haben sich besonders zwei Arten von cellulosehaltigem Material ausgezeichnet, nämlich TMP (= Thermo Mechanical Pulp) (Anspruch 17) und CTMP (= Chemo Thermo Mechanical Pulp) (Anspruch 18). Es sind dies zwei Arten von sogenanntem Holzstoff. Bei dem TMP-Verfahren werden Holzschnitzel unter Dampfdruck bei ca. 130°C in Druckrefinern zu TMP zerfasert. Bei der Verwendung von Chemikalien in der Holzschnitzelvordämpfung ergibt sich CTMP (siehe "Römpp-Chemie-Lexikon" 9. Auflage (1995), Seite 3207, Stichwort "Papier").In the development work, two types of cellulose-containing material have distinguished themselves, namely TMP (= Thermo Mechanical Pulp) (claim 17) and CTMP (= Chemo Thermo Mechanical Pulp) (claim 18). These are two types of so-called wood pulp. In the TMP process, wood chips are shredded to TMP under pressure at approx. 130 ° C in pressure refiners. The use of chemicals in wood chip pre-damping results in CTMP (see "Römpp-Chemie-Lexikon" 9th edition (1995), page 3207, keyword "paper").
Bei den Holzstoffen TMP und CTMP hat zwar eine gewisse Auslaugung des Materials stattgefunden, doch sind die Lignine, Harze und sonstigen Holzbegleitstoffe nicht vollständig entfernt, insbesondere nicht so vollständig wie bei der Celluloseherstellung. Es handelt sich also bei diesen Holzstoffen um cellulosehaltige Materialien, die noch einen Rest des Holzcharakters behalten haben.With the wood pulp TMP and CTMP a certain leaching of the material has taken place, but the lignins, resins and other wood accompanying substances have not been completely removed, in particular not as completely as in the cellulose production. So these wood pulps are cellulose-containing materials that have retained some of their wood character.
Die vorgenannten beiden Materialien haben sich als Sprengmittel für die in Rede stehenden Preßlinge als besonders wirksam erwiesen, insbesondere in kompaktiertem Zustand. Weder reine Holzprodukte wie Holzmehl oder Holzfasern noch reine Cellulose sind in ihrem Sprengverhalten vergleichbar. Bei den "mittelbehandelten" Produkten TMP und CTMP liegt ein deutliches Wirkungsmaximum vor.The aforementioned two materials have proven to be particularly effective as disintegrants for the compacts in question, in particular in a compacted state. Neither pure wood products such as wood flour or wood fibers nor pure cellulose are comparable in their blasting behavior. The "medium-treated" products TMP and CTMP have a clear maximum effect.
Die in Betracht kommenden Abmessungen des Preßlings sind durch eine größte Abmessung von etwa 1 bis 10 cm, vorzugsweise 2 bis 4 cm gekennzeichnet.The dimensions of the compact under consideration are characterized by a largest dimension of approximately 1 to 10 cm, preferably 2 to 4 cm.
Die Erfindung erstreckt sich auch auf ein Waschmittel in der Konfektionierungsform nach Anspruch 20.The invention also extends to a detergent in the form according to claim 20.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung schematisch dargestellt.In the drawing, an embodiment of the invention is shown schematically.
Fig. 1 zeigt eine mögliche Art der Kompaktierung von cellulosehaltigem Material; Fig. 2 zeigt eine kompaktierte Granulatpartikel;Fig. 1 shows a possible way of compacting cellulosic material; 2 shows a compacted granulate particle;
Fig. 3 zeigt einen Waschmittelpreßling.Fig. 3 shows a detergent compact.
Gemäß Fig. 1 wird eine Schüttung 1 aus cellulosehaltigem Material, in dem Ausführungsbeispiel TMP einem Preßwalzenpaar 2 zugeleitet, in welche eine Kompaktierung unter Zusammendrückung des Volumens der einzelnen Partikel und unter Verbindung derselben zu einer Art zusammenhängender, verdichteter Bahn 3 erfolgt. 4 symbolisiert das Zerkleinern der Bahn 3 zu einem Granulat 5.According to FIG. 1, a bed 1 of cellulose-containing material, in the exemplary embodiment TMP, is fed to a pair of press rolls 2, into which a compacting takes place while compressing the volume of the individual particles and connecting them to form a type of coherent, compressed web 3. 4 symbolizes the shredding of the web 3 into granules 5.
Ein einzelnes Granulatkorn 5 ist in Fig. 2 dargestellt. Es enthält eine größere Anzahl von feinstteiligen TMP Parti- kein 6, deren Partikelgröße etwa 50 μm beträgt, d.h. dasA single granule 5 is shown in FIG. 2. It contains a large number of finely divided TMP Parti- no 6, the particle size of which is about 50 μm, i.e. the
TMP Material hat eine Korngrößenverteilung, deren Maximum bei etwa 50 μm liegt. Die einzelnen feinstteiligen TMP- Partikel 6 halten durch die in dem Preßwalzenpaar 2 erfahrene Pressung zusammen. Gleichzeitig sind die einzelnen Partikel 6 in dem Preßspalt gegenüber ihrer Ursprungsgestalt zusammengedrückt worden, d.h. sie haben eine Kompaktierung erfahren.TMP material has a grain size distribution, the maximum of which is around 50 μm. The individual very finely divided TMP particles 6 hold together through the pressure experienced in the pair of press rolls 2. At the same time, the individual particles 6 in the press nip have been compressed relative to their original shape, i.e. they have been compacted.
Die Granulatpartikel 5 haben ihrerseits eine Korngrößen- Verteilung mit einem Maximum bei etwa 2 mm, d.h. die Größe der Granulatpartikel 5 liegt um etwa 2 Größenordnungen über der Größe der in ihr enthaltenen feinstteiligen TMP Partikel.The granulate particles 5 in turn have a grain size distribution with a maximum at about 2 mm, i.e. the size of the granulate particles 5 is about 2 orders of magnitude larger than the size of the very finely divided TMP particles.
Gemäß Fig. 2 können in der Granulatpartikel 5 auch noch nicht kompaktierte cellulosehaltige Partikel 7 enthalten sein, die durch kurze grade Striche angedeutet sind und die eine Beschichtung mit einem Tensid aufweisen können, um das Eindringen der Flüssigkeit, insbesondere des Wasch- wassers zu fördern. Die Waschmittelzusammensetzung liegt ihrerseits als Pulver/Granulat-Gemisch vor. Die einzelnen Waschmittelpartikel sind in Fig. 3 mit 8 bezeichnet. Die Waschmittelzusammensetzung wird mit den Granulatpartikeln 5 aus TMP, die in Fig. 3 als kleine Kreise dargestellt sind, vermischt und sodann zu einem Preßling 10 verpreßt, der gemäß Fig. 3 als kleiner Quader mit Kantenlängen von 2 bis 3 cm ausgebildet ist. Es kommen aber auch alle anderen Formen in Betracht, zum Beispiel kleine Kreisscheiben oder derglei- chen.According to FIG. 2, the granulate particles 5 may also contain non-compacted cellulose-containing particles 7, which are indicated by short, straight lines and which may have a coating with a surfactant in order to promote the penetration of the liquid, in particular the washing water. The detergent composition itself is in the form of a powder / granule mixture. The individual detergent particles are designated 8 in FIG. 3. The detergent composition is mixed with the granulate particles 5 made of TMP, which are shown in FIG. 3 as small circles, and then pressed into a compact 10, which according to FIG. 3 is designed as a small cuboid with edge lengths of 2 to 3 cm. However, all other shapes are also possible, for example small circular disks or the like.
Die Pressung der Preßlinge 10 erfolgt so, daß sie bei der Handhabung nicht zerbröckeln, daß sie aber beim Einbringen in die Flüssigkeit praktisch augenblicklich zerfallen und die Waschmittelzusammensetzung freigeben. Dies wird durch die Granulatpartikel 5 bewirkt, die im Kontakt mit dem Waschwasser sofort ihre frühere Gestalt zurückgewinnen, d.h. die Kompaktierung rückgängig machen, und dadurch an Volumen zunehmen. Wenn es sich um eine 20-prozentige Volu- menszunahme handelt und die einzelne Partikel beispielsweise 2 mm groß ist, entsteht bei der Kontaktierung mit dem Wasser eine Dehnung von 0,4 mm, die ausreicht, um den nur durch die trockene Pressung herbeigeführten Verbund des Preßlings 10 lokal zu sprengen und die Waschmittel- partikel freizusetzen. Auch die Granulatpartikel 5 selbst zerfallen im Kontakt mit dem Waschwasser, so daß darin schließlich nur noch die einzelnen Partikel 6 und 7 des cellulosehaltigen Materials vorhanden sind, die chemisch im wesentlichen inert sind und auch sonst keine Störung des Waschvorgangs erzeugen. The pressing of the compacts 10 takes place in such a way that they do not crumble during handling, but that they disintegrate almost immediately when introduced into the liquid and release the detergent composition. This is caused by the granulate particles 5, which immediately regain their former shape in contact with the wash water, i.e. undo the compaction and thereby increase in volume. If there is a 20 percent increase in volume and the individual particle is, for example, 2 mm in size, an expansion of 0.4 mm occurs when it comes into contact with the water, which is sufficient to bond the composite of the Blowing the compacts 10 locally and releasing the detergent particles. The granulate particles 5 themselves disintegrate in contact with the washing water, so that finally only the individual particles 6 and 7 of the cellulose-containing material are present, which are chemically essentially inert and also do not otherwise interfere with the washing process.

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Preßling aus pulver- und/oder granulatförmigen Inhaltsstoffen, der nach dem Einbringen in Flüssigkeit zur alsbaldigen Auflösung/Dispergierung unter Freigabe seiner Inhaltsstoffe bestimmt ist, gekennzeichnet durch ein eingemischtes Sprengmittel aus kleinteili- gem cellulosehaltigen Material.1. Compact from powdery and / or granular constituents which, after being introduced into liquid, is intended for immediate dissolution / dispersion with the release of its constituents, characterized by a mixed-in disintegrant made of small-cellulosic material.
2. Preßling nach Anspruch 1, dadurch gekennzeichnet, daß die Inhaltsstoffe eine Waschmittelzusammensetzung sind.2. Compact according to claim 1, characterized in that the ingredients are a detergent composition.
3. Preßling nach Anspruch 1 oder 2 , dadurch gekennzeichnet, daß das cellulosehaltige Material vor dem Beimischen zu den Inhaltsstoffen kompaktiert ist.3. compact according to claim 1 or 2, characterized in that the cellulose-containing material is compacted before admixing with the ingredients.
Preßling nach Anspruch 3, dadurch gekennzeichnet, daß das aus feinstteiligem Ausgangsmaterial kompaktierte cellulosehaltige Material in dem Preßling als Granulat vorliegt . Compact according to claim 3, characterized in that the cellulose-containing material compacted from very finely divided starting material is present in the compact as granules.
5. Preßling nach einem der Ansprüche 2 bis 4 , dadurch gekennzeichnet, daß bei einer Waschmittelzusammensetzung die Teilchengröße des Ausgangsmaterials 20 bis 200 μm, vorzugsweise 40 μm bis 60 μm beträgt.5. compact according to one of claims 2 to 4, characterized in that in a detergent composition the particle size of the starting material is 20 to 200 microns, preferably 40 microns to 60 microns.
6. Preßling nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß das kompaktierte Granulat eine Dichte von 0,5 bis 1,5 g/cm3 aufweist.6. compact according to claim 4 or 5, characterized in that the compacted granules have a density of 0.5 to 1.5 g / cm 3 .
7. Preßling nach einem der Ansprüche 3 bis 6, dadurch gekennzeichnet, daß das kompaktierte Granulat des cellulosehaltigen Materials eine Partikelgröße von 0,2 bis 6,0 mm aufweist.7. compact according to one of claims 3 to 6, characterized in that the compacted granulate of the cellulose-containing material has a particle size of 0.2 to 6.0 mm.
8. Preßling nach Anspruch 7, dadurch gekennzeichnet, daß das kompaktierte Granulat des cellulosehaltigen Materials eine Partikelgröße von 0,4 bis 1,5 mm aufweist.8. compact according to claim 7, characterized in that the compacted granulate of the cellulose-containing material has a particle size of 0.4 to 1.5 mm.
9. Preßling nach einem der Ansprüche 3 bis 8, dadurch gekennzeichnet, daß der Gewichtsanteil des kompaktierten cellulosehaltigen Materials an dem fertigen Preßling 3 bis 6 Prozent beträgt.9. compact according to one of claims 3 to 8, characterized in that the proportion by weight of the compacted cellulose-containing material in the finished compact is 3 to 6 percent.
10. Preßling nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß er zusätzlich einen Anteil an kleinteiligem nicht-kompaktierten cellulosehaltigen Material umfaßt .10. compact according to one of claims 1 to 9, characterized in that it additionally comprises a proportion of small-sized non-compacted cellulose-containing material.
11. Preßling nach Anspruch 10, dadurch gekennzeichnet, daß der Gewichtsanteil des nicht-kompaktierten cellulosehaltigen Materials an dem fertigen Preßling 1 bis 3 Prozent beträgt.11. compact according to claim 10, characterized in that the proportion by weight of the non-compacted cellulose-containing material in the finished compact is 1 to 3 percent.
12. Preßling nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß das in dem Preßling enthaltene cellulosehaltige Material eine Beschichtung mit einem Quell- bzw. Verdickungsmittel aufweist.12. Compact according to one of claims 1 to 11, characterized in that that contained in the compact cellulosic material has a coating with a swelling or thickening agent.
13. Preßling nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß das in dem Preßling enthaltene cellulosehaltige Material eine Beschichtung mit einem Tensid aufweist.13. Compact according to one of claims 1 to 12, characterized in that the cellulose-containing material contained in the compact has a coating with a surfactant.
14. Preßling nach Anspruch 13, dadurch gekennzeichnet, daß der Preßling das Tensid in einem Gewichtsanteil von 0,5 bis 2,0 Prozent des fertigen Preßlings enthält.14. compact according to claim 13, characterized in that the compact contains the surfactant in a weight fraction of 0.5 to 2.0 percent of the finished compact.
15. Preßling nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, daß der Preßling fibrilliertes cellu- losehaltiges Material enthält.15. Compact according to one of claims 1 to 14, characterized in that the compact contains fibrillated cellulose-containing material.
16. Preßling nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß der Preßling aus einer Mischung der pulverförmigen oder granulatartigen Inhaltsstoffe mit dem kleinteiligen, cellulosehaltigen Material trocken bzw. erdfeucht gepreßt ist.16. Compact according to one of claims 1 to 15, characterized in that the compact is pressed dry or earth-moist from a mixture of the pulverulent or granular ingredients with the small-scale, cellulose-containing material.
17. Preßling nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, daß das cellulosehaltige Material TMP17. Compact according to one of claims 1 to 16, characterized in that the cellulose-containing material TMP
(Thermo Mechanical Pulp) ist.(Thermo Mechanical Pulp) is.
18. Preßling nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, daß das cellulosehaltige Material CTMP (Chemo Thermo Mechanical Pulp) ist.18. Compact according to one of claims 1 to 16, characterized in that the cellulose-containing material is CTMP (Chemo Thermo Mechanical Pulp).
19. Preßling nach einem der Ansprüche 1 bis 18, dadurch gekennzeichnet, daß die größte Abmessung des Preßlings 1 bis 10 cm, vorzugsweise 2 bis 4 cm beträgt. 19. Compact according to one of claims 1 to 18, characterized in that the largest dimension of the compact is 1 to 10 cm, preferably 2 to 4 cm.
20. Waschmittel für textiles Waschgut als ein Sprengmittel enthaltender fester, jedoch in Wasser zerfallender Formkörper. 20. Detergent for textile laundry as a solid, but disintegrating water-containing shaped body.
EP98916813A 1997-03-11 1998-02-28 Pressed piece which disintegrates in liquids Expired - Lifetime EP0970181B1 (en)

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DE19709991A DE19709991C2 (en) 1997-03-11 1997-03-11 Detergent compact and process for its manufacture
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PCT/DE1998/000589 WO1998040462A1 (en) 1997-03-11 1998-02-28 Pressed piece which disintegrates in liquids

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DE59801528D1 (en) 2001-10-25
DE19709991A1 (en) 1998-09-17
WO1998040462A1 (en) 1998-09-17
EP0970181B1 (en) 2001-09-19
DK0970181T3 (en) 2002-01-28
US7008912B1 (en) 2006-03-07
PT970181E (en) 2001-12-28
ES2165155T3 (en) 2002-03-01
DE19709991C2 (en) 1999-12-23
DE19758811B4 (en) 2008-12-18
ATE205875T1 (en) 2001-10-15

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