EP0223175A2 - Process for encapsulating textile-conditioning agents - Google Patents
Process for encapsulating textile-conditioning agents Download PDFInfo
- Publication number
- EP0223175A2 EP0223175A2 EP86115553A EP86115553A EP0223175A2 EP 0223175 A2 EP0223175 A2 EP 0223175A2 EP 86115553 A EP86115553 A EP 86115553A EP 86115553 A EP86115553 A EP 86115553A EP 0223175 A2 EP0223175 A2 EP 0223175A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- copolymer
- dispersion
- soluble
- protective colloid
- polymers
- 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.)
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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
- C11D17/0039—Coated compositions or coated components in the compositions, (micro)capsules
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31909—Next to second addition polymer from unsaturated monomers
- Y10T428/31913—Monoolefin polymer
- Y10T428/3192—Next to vinyl or vinylidene chloride polymer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31909—Next to second addition polymer from unsaturated monomers
- Y10T428/31928—Ester, halide or nitrile of addition polymer
Definitions
- the invention relates to a method for enveloping solid forms of textile - care products or their components which tend to cause interactions.
- textile care products are understood as detergents and washing aids.
- the detergents are all in solid form, that is to say for example in powder or particle form, for example as granules, as flakes, flakes, pasta, as hollow spheres, as porous spheres which may be loaded with liquid detergent constituents, as shaped bodies, for example as tablets. Understand bars, balls, blocks, rigid or flexible strips or fabrics, textile detergents or their components, provided they are used in an aqueous alkaline medium. This also applies analogously to agents in this form for cleaning hard surfaces, such as, for example, ceramic cleaning agents, household cleaning agents, cleaning or disinfecting agents for sanitary facilities.
- the washing aids include, for example, laundry pre-treatment and post-treatment agents, bleaching agents, detergency boosters, fabric softeners, dirt-repellent agents, discoloration inhibitors or the components of these agents, provided that they cause interfering interactions with one another or with other components of these agents, with the packaging materials, with the surrounding atmosphere or can lead to the skin of the user or if it should be wrapped for other reasons, for example to cover up an unpleasant smell, such as it Fat amine or fish oil derivatives attached, or for the preservation of volatile desired fragrances.
- a casing therefore generally serves to avoid loss of effectiveness, to improve the shelf life and to handle it, for example by avoiding clumping, becoming damp or sticky or skin irritation.
- the surface of the detergents and washing aids is covered at least to such an extent that the interfering interactions are avoided.
- the wrapping material itself must not have any disadvantageous properties and must release the washing and washing aids quickly and completely under conditions of use, that is to say in this case in alkaline washing liquors, in the temperature range from about 10 to 100.degree.
- This object is achieved by a process for coating solid forms of textile care products or their constituents, which tend to cause interactions, by applying dissolved or dispersed organic, film-forming polymers which are soluble in an aqueous alkaline medium.
- the polymers are applied, for example, by spraying, brushing, dipping, contacting with rollers which are wetted with the solutions or dispersions of the polymers, by pouring, by rolling, by knife coating and, if necessary, subsequent drying. If necessary, the application can be repeated to improve the desired effect.
- Suitable polymers are applied either as a real solution or as a dispersion.
- the polymers are selected on the basis that the polymers are present in the alkaline wash liquor either as a real solution or as a finely divided suspension before the end of the washing process. Accordingly, "insoluble” means that the polymers are insoluble or not soluble in water or in acidic or neutral washing or cleaning liquors are dispersible.
- Suitable polymers are, for example, polymers containing carboxyl groups, in particular copolymers, especially those based on vinyl esters.
- a particularly suitable copolymer based on vinyl esters is a copolymer made of vinyl acetate containing copolymerizable carboxylic acids. The amount of the copolymerized carboxylic acids is in the range from 2 to 10 mole percent, based on the copolymer.
- copolymers are water-insoluble and are therefore advantageously applied in the form of an aqueous dispersion.
- Particularly suitable copolymer dispersions contain a protective colloid and optionally emulsifiers, the protective colloid content being in the range from 0.5 to 7 percent by weight, based on the copolymer.
- Particularly stable copolymer dispersions are obtained with water-soluble polyacrylamide copolymers as a protective colloid.
- Such copolymer dispersions are known, for example, from German Patent No. 14 44 073. According to the teaching of this patent, the copolymer dispersions are used to stiffen textiles.
- a non-prepublished German patent application No. P 34 22 055.0 (D 7093) describes a textile care agent with washing-strengthening properties.
- This textile care product contains a mixture of detergent components that are embedded in organic, flexible, film-forming water-soluble polymers.
- the textile care agents described therein contain additives to improve the solubility of the film-forming polymers in the wash liquor.
- the active substances themselves improve the removal of greasy, pigment-like and bleachable soiling by supporting the tenside, bleaching and builder components.
- the textile care products are, for example, in particular in the form of soluble, flexible sheets, in which the film-forming polymer is essentially polyvinyl alcohol is made.
- the present method can therefore be used with particular advantage to improve the shelf life and manageability of textile care products in the form of soluble, flexible sheet-like structures, preferably based on polyvinyl alcohol, with washing-strengthening active ingredients embedded therein.
- An effective improvement in storage stability with excellent handling safety is achieved if an amount of 25 to 500 g per m surface of the sheet of copolymer is applied to the sheet.
- copolymers in the form of their aqueous dispersions are also suitable as coating material, for example the commercial product Vinnapas (R) dispersion DZN 220. This is a carboxyl group-containing polyvinyl acetate dispersion.
- the copolymer dispersions mentioned are applied to the flexible fabrics by single or multiple application using a roller impregnated or wetted with the aqueous dispersion and drying the application at 40 to 90 ° C.
- the fabrics protected against the absorption of water from the ambient air are much more stable in storage than non-enveloped fabrics.
- Another advantage of the wrapper is that the wrapped fabrics feel more comfortable when touched by the user.
- the flat structures are assessed by trained persons with regard to the appearance of the stored flat structures and the feeling when the flat structures are removed from the packaging by hand. Storage took place at 23 ° C and 5 0% relative humidity, at 30 ° C and 80% relative humidity and at 40 ° C and 20% relative humidity.
- a 30% by weight aqueous dispersion of a copolymer of vinyl acetate and crotonic acid in a weight ratio of 18.8: 1 with 2.5% by weight of a water-soluble polyacrylamide was used as the protective colloid for the coating.
- the water-insoluble copolymer clearly dissolved in dilute sodium hydroxide solution at a pH of 9.
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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)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Detergent Compositions (AREA)
- Artificial Filaments (AREA)
Abstract
In fester Form vorliegende Textilpflegemittel oder deren Bestandteile werden, wenn sie zu störenden Wechselwirkungen neigen, durch Applizieren von gelösten oder dispergierten organischen, in alkalischem Medium löslichen, filmbildenden Polymeren umhüllt. Geeignete Polymere enthalten insbesondere Carboxylgruppen und leiten sich bevorzugt von Vinylestern her. Die Carboxylgruppen stammen aus copolymerisierten Carbonsäuren, die etwa 2-10 Molprozent des Copolymerisats ausmachen. Von ihrer Herstellung her liegen die Copolymerisate zweckmäßigerweise als feinteilige Dispersion vor und enthalten ggf. ein Schutzkolloid und/oder einen Emulgator.Textile care products or their components in solid form, if they tend to cause interfering interactions, are coated by applying dissolved or dispersed organic, film-forming polymers which are soluble in an alkaline medium. Suitable polymers contain, in particular, carboxyl groups and are preferably derived from vinyl esters. The carboxyl groups come from copolymerized carboxylic acids, which make up about 2-10 mole percent of the copolymer. The copolymers are expediently present in their preparation as a finely divided dispersion and may contain a protective colloid and / or an emulsifier.
Description
Die Erfindung betrifft ein Verfahren zum Umhüllen von an sich zu störenden Wechselwirkungen neigenden festen Formen von Textil- - pflegemitteln oder deren Bestandteilen.The invention relates to a method for enveloping solid forms of textile - care products or their components which tend to cause interactions.
Unter Textilpflegemitteln werden im Rahmen dieser Erfindung Waschmittel und Waschhilfsmittel verstanden. Zu den Waschmitteln sind alle in fester Form, das heißt zum Beispiel in Pulver- oder Teilchenform, beispielsweise als Granulat, als Flocke, Schuppe, Nudel, als Hohlkugel, als poröse, gegebenenfalls mit flüssigen Waschmittelbestandteilen beladene Kugeln, als Formkörper, beispielsweise als Tablette, Riegel, Kugel, Block, starre oder flexible Streifen oder Flächengebilde, vorliegenden Textilwaschmittel oder deren Bestandteile zu verstehen, soweit sie in wäßrigem alkalischem Medium angewandt werden. Sinngemäß gilt dies auch für in dieser Form vorliegende Mittel zum Reinigen von harten Oberflächen, wie beispielsweise Ceschirreinigungsmittel, Haushaltsreinigungsmittel, Reinigungs- bzw. Desinfektionsmittel für sanitäre Einrichtungen. Zu den Waschhilfsmitteln zählen beispielsweise Wäsche-Vor- und Nachbehandlungsmittel, Bleichmittel, Waschkraftverstärker, Textilweichmacher, schmutzabweisende Mittel, Verfärbungsinhibitoren oder die Bestandteile dieser Mittel, soweit sie zu störenden Wechselwirkungen miteinander oder mit anderen Bestandteilen dieser Mittel, mit den Verpackungsmaterialien, mit der umgebenden Atmosphäre oder mit der Haut des Anwenders führen können oder soweit sie aus anderen Gründen zweckmäßigerweise umhüllt werden sollten, zum Beispiel zum Verdecken eines unangenehmen Geruchs, wie er beispielsweise Fettamin- oder Fischölderivaten anhaftet, oder zur Konservierung von flüchtigen erwünschten Duftstoffen. Eine Umhüllung dient also in der Regel der Vermeidung von Wirkungsverlusten, zur Verbesserung der Lagerfähigkeit und der Handhabung, indem beispielsweise Zusammenklumpen, Feucht- oder Klebrigwerden oder Hautirritationen vermieden werden. Durch die Umhüllung werden die Wasch- und Waschhilfsmittel oberflächlich mindestens so weitgehend bedeckt, daß die störenden Wechselwirkungen vermieden werden. Das Umhüllungsmaterial selbst darf seinerseits keine nachteiligen Eigenschaften haben und muß die Wasch- und Waschhilfsmittel unter Anwendungsbedingungen, das heißt in diesem Fall in alkalischen Waschlaugen, im Temperaturbereich von etwa 10 bis 100 C schnell und vollständig freigeben.In the context of this invention, textile care products are understood as detergents and washing aids. The detergents are all in solid form, that is to say for example in powder or particle form, for example as granules, as flakes, flakes, pasta, as hollow spheres, as porous spheres which may be loaded with liquid detergent constituents, as shaped bodies, for example as tablets. Understand bars, balls, blocks, rigid or flexible strips or fabrics, textile detergents or their components, provided they are used in an aqueous alkaline medium. This also applies analogously to agents in this form for cleaning hard surfaces, such as, for example, ceramic cleaning agents, household cleaning agents, cleaning or disinfecting agents for sanitary facilities. The washing aids include, for example, laundry pre-treatment and post-treatment agents, bleaching agents, detergency boosters, fabric softeners, dirt-repellent agents, discoloration inhibitors or the components of these agents, provided that they cause interfering interactions with one another or with other components of these agents, with the packaging materials, with the surrounding atmosphere or can lead to the skin of the user or if it should be wrapped for other reasons, for example to cover up an unpleasant smell, such as it Fat amine or fish oil derivatives attached, or for the preservation of volatile desired fragrances. A casing therefore generally serves to avoid loss of effectiveness, to improve the shelf life and to handle it, for example by avoiding clumping, becoming damp or sticky or skin irritation. The surface of the detergents and washing aids is covered at least to such an extent that the interfering interactions are avoided. The wrapping material itself must not have any disadvantageous properties and must release the washing and washing aids quickly and completely under conditions of use, that is to say in this case in alkaline washing liquors, in the temperature range from about 10 to 100.degree.
Diese Aufgabe wird durch ein Verfahren zum Umhüllen von an sich zu störenden Wechselwirkungen neigenden festen Formen von Textilpflegemitteln oder deren Bestandteilen durch Applizieren von gelösten oder dispergierten organischen, in wäßrigem alkalischem Medium löslichen, filmbildenden Polymeren gelöst. Das Applizieren der Polymeren erfolgt beispielsweise durch Besprühen, Bestreichen, Tauchen, In-Kontaktbringen mit Rollen, die mit den Lösungen oder Dispersionen der Polymeren benetzt sind, durch Begießen, durch Aufwalzen, durch Rakeln und erforderlichenfalls anschließendes Trocknen. Im Bedarfsfalle kann das Applizieren zur Verbesserung der erwünschten Wirkung wiederholt werden. Geeignete Polymere werden entweder als echte Lösung oder als Dispersion appliziert.This object is achieved by a process for coating solid forms of textile care products or their constituents, which tend to cause interactions, by applying dissolved or dispersed organic, film-forming polymers which are soluble in an aqueous alkaline medium. The polymers are applied, for example, by spraying, brushing, dipping, contacting with rollers which are wetted with the solutions or dispersions of the polymers, by pouring, by rolling, by knife coating and, if necessary, subsequent drying. If necessary, the application can be repeated to improve the desired effect. Suitable polymers are applied either as a real solution or as a dispersion.
Die Auswahl der Polymeren wird nach dem Gesichtspunkt vorgenommen, daß die Polymeren vor Ende des Waschvorgangs in der alkalischen Waschlauge entweder als echte Lösung oder als feinverteilte Suspension vorliegen. Dementsprechend bedeutet "unlöslich", daß die Polymeren in Wasser oder in sauren oder neutralen Wasch- oder Reinigungslaugen nicht löslich oder nicht dispergierbar sind. Geeignete Polymere sind beispielsweise Polymere mit einem Gehalt an Carboxylgruppen, insbesondere Copolymere, vor allem solche auf Basis von Vinylestern. Ein besonders geeignetes Copolymerisat auf Basis von Vinylestern ist ein Copolymerisat aus Vinylacetat mit einem Gehalt an copolymerisierbaren Carbonsäuren. Die Menge der einpolymerisierten .. Carbonsäuren liegt im Bereich von 2 bis 10 Molprozent, bezogen auf das Copolymerisat. Derartige Copolymerisate sind wasserunlöslich und werden daher zweckmäßigerweise in Form einer wäßrigen Dispersion appliziert. Besonders geeignete Copolymerisat--Dispersionen enthalten ein Schutzkolloid und gegebenenfalls Emulgatoren, wobei der Gehalt an Schutzkolloid im Bereich von 0,5 bis 7 Gewichtsprozent, bezogen auf das Copolymerisat, liegt. Besonders stabile Copolymerisat-Dispersionen erhält man mit wasserlöslichen Polyacrylamid-Copolymerisaten als Schutzkolloid. Derartige Copolymerisat-Dispersionen sind beispielsweise aus der deutschen Patentschrift Nr. 14 44 073 bekannt. Nach der Lehre dieser Patentschrift werden die Copolymerisat-Dispersionen zum Versteifen von Textilien verwendet.The polymers are selected on the basis that the polymers are present in the alkaline wash liquor either as a real solution or as a finely divided suspension before the end of the washing process. Accordingly, "insoluble" means that the polymers are insoluble or not soluble in water or in acidic or neutral washing or cleaning liquors are dispersible. Suitable polymers are, for example, polymers containing carboxyl groups, in particular copolymers, especially those based on vinyl esters. A particularly suitable copolymer based on vinyl esters is a copolymer made of vinyl acetate containing copolymerizable carboxylic acids. The amount of the copolymerized carboxylic acids is in the range from 2 to 10 mole percent, based on the copolymer. Such copolymers are water-insoluble and are therefore advantageously applied in the form of an aqueous dispersion. Particularly suitable copolymer dispersions contain a protective colloid and optionally emulsifiers, the protective colloid content being in the range from 0.5 to 7 percent by weight, based on the copolymer. Particularly stable copolymer dispersions are obtained with water-soluble polyacrylamide copolymers as a protective colloid. Such copolymer dispersions are known, for example, from German Patent No. 14 44 073. According to the teaching of this patent, the copolymer dispersions are used to stiffen textiles.
In der nicht vorveröffentlichten deutschen Patentanmeldung Nr. P 34 22 055.0 (D 7093) ist ein Textilpflegemittel mit waschkraftverstärkenden Eigenschaften beschrieben. Dieses Textilpflegemittel enthält ein Gemisch aus Waschmittelbestandteilen, die in organische, flexible, filmbildende wasserlösliche Polymere eingebettet sind. Neben den eigentlichen waschkraftverstärkenden Wirkstoffen enthalten die dort beschriebenen Textilpflegemittel Zusätze zur Verbesserung der Löslichkeit der filmbildenden Polymeren in der Waschlauge. Die Wirkstoffe selbst verbessern die Entfernung von fettigen, pigmentartigen und bleichbaren Verschmutzungen durch Unterstützung der Tensid-, Bleich- und Builderbestandteile. Die Textilpflegemittel werden beispielsweise insbesondere in Form von löslichen, flexiblen Flächengebilden, bei denen das filmbildende Polymere im wesentlichen Polyvinylalkohol ist, hergestellt. Bei längerer Lagerung an feuchter Luft neigen manche dieser Textilpflegemittel bei gewissen Lagerungsbedin- - gungen unter Aufnahme von Luftfeuchtigkeit zum Feuchtwerden und zum Klebrigwerden. Mit besonderem Vorteil läßt sich daher das vorliegende Verfahren zur Verbesserung der Lagerfähigkeit und Handhabbarkeit von Textilpflegemitteln in Form von löslichen, flexiblen Flächengebilden, vorzugsweise auf der Basis von Polyvinylalkohol, mit darin eingebetteten waschkraftverstärkenden Wirkstoffen anwenden. Eine wirksame Verbesserung der - Lagerstabilität bei ausgezeichneter Handhabungssicherheit wird erzielt, wenn man auf die Flächengebilde eine Menge von 25 bis 500 g pro m Oberfläche der Flächengebilde an Copolymerisat appliziert. Außer den bereits genannten Copolymerisaten nach der deutschen Patentschrift Nr. 14 44 073 sind auch andere Copolymerisate in Form ihrer wäßrigen Dispersionen als Umhüllungsmaterial geeignet, beispielsweise das Handelsprodukt Vinnapas (R) - Dispersion DZN 220. Hierbei handelt es sich um eine carboxylgruppenhaltige Polyvinylacetat-Dispersion. Die genannten Copolymerisat-Dispersionen werden auf die flexiblen Flächengebilde durch ein- oder mehrfache Applikation mittels einer mit der wäßrigen Dispersion getränkten oder benetzten Rolle und Trocknen des Auftrags bei 40 bis 90 °C aufgetragen. Die dadurch vor der Aufnahme von Wasser aus der Umgebungsluft geschützten Flächengebilde sind wesentlich lagerstabiler als nicht umhüllte Flächengebilde. Ein weiterer Vorteil der Umhüllung ist, daß sich die umhüllten Flächengebilde bei der Berührung durch den Anwender angenehmer anfühlen.A non-prepublished German patent application No. P 34 22 055.0 (D 7093) describes a textile care agent with washing-strengthening properties. This textile care product contains a mixture of detergent components that are embedded in organic, flexible, film-forming water-soluble polymers. In addition to the actual detergent-enhancing active ingredients, the textile care agents described therein contain additives to improve the solubility of the film-forming polymers in the wash liquor. The active substances themselves improve the removal of greasy, pigment-like and bleachable soiling by supporting the tenside, bleaching and builder components. The textile care products are, for example, in particular in the form of soluble, flexible sheets, in which the film-forming polymer is essentially polyvinyl alcohol is made. When stored in moist air for a long time, some of these textile care products tend to become damp and sticky under certain storage conditions when they absorb humidity. The present method can therefore be used with particular advantage to improve the shelf life and manageability of textile care products in the form of soluble, flexible sheet-like structures, preferably based on polyvinyl alcohol, with washing-strengthening active ingredients embedded therein. An effective improvement in storage stability with excellent handling safety is achieved if an amount of 25 to 500 g per m surface of the sheet of copolymer is applied to the sheet. In addition to the copolymers already mentioned according to German Patent No. 14 44 073, other copolymers in the form of their aqueous dispersions are also suitable as coating material, for example the commercial product Vinnapas (R) dispersion DZN 220. This is a carboxyl group-containing polyvinyl acetate dispersion. The copolymer dispersions mentioned are applied to the flexible fabrics by single or multiple application using a roller impregnated or wetted with the aqueous dispersion and drying the application at 40 to 90 ° C. The fabrics protected against the absorption of water from the ambient air are much more stable in storage than non-enveloped fabrics. Another advantage of the wrapper is that the wrapped fabrics feel more comfortable when touched by the user.
Das folgende Beispiel demonstriert die Wirkungsweise des erfindungsgemäßen Verfahrens. Textilpflegemittel nach der Patentanmeldung Nr. P 34 22 055.0 in Form von Flächengebilden mit den durchschnittlichen Maßen 260 x 150 x 1,4 mm und der folgenden Zusammensetzung:
Als Copolymerisat wurde eine 30-Gew.-%ige wäßrige Dispersion eines Copolymeren aus Vinylacetat und Crotonsäure im Gewichtsverhältnis von 18,8 : 1 mit 2,5 Gew.-% eines wasserlöslichen Polyacrylamids als Schutzkolloid für die Umhüllung verwendet. Das wasserunlösliche Copolymerisat löste sich in verdünnter Natronlauge bei einem pH-Wert von 9 klar auf.A 30% by weight aqueous dispersion of a copolymer of vinyl acetate and crotonic acid in a weight ratio of 18.8: 1 with 2.5% by weight of a water-soluble polyacrylamide was used as the protective colloid for the coating. The water-insoluble copolymer clearly dissolved in dilute sodium hydroxide solution at a pH of 9.
Andere geeignete Polymere lösten sich in verdünnter Natronlauge bei pH-Werten zwischen 7 und 11 auf. Die Löslichkeit der Polymeren in alkalischem Milieu wurde in einem Trübungsmesser Typ 1222 der Firma Dr. B. Lange, Berlin mit Hilfe eines pH-Meters der Firma Knick, Berlin ermittelt, indem man den pH-Wert feststellte, bei dem die Trübung der Dispersion nach Verdünnen mit der dreifachen Menge Wasser durch die Zugabe von 0,5n Natronlauge einen Wert von 20 % unterschreitet. Dieser pH-Wert wird als Maß für die Alkalilöslichkeit definiert. Im Rahmen dieser Erfindung geeignete, in Waschlaugen lösliche Polymere weisen eine Alkalilöslichkeit im pH-Wert-Bereich von 7 bis 11, insbesondere von 8 bis 10 auf. Die Ergebnisse nach zweiwöchiger Lagerung nichtumhüllter Waschzusätze und der nach dem erfindungsgemäßen Verfahren umhüllten Waschzusätze sind in der folgenden Tabelle 1 aufgeführt. Bewertet wurden das Aussehen der flächigen Proben und das Gefühl beim Berühren mit der Hand; beide Kriterien wurden als "Oberflächenbeschaffenheit" benotet.
Ähnliche Ergebnisse erhielt man mit Waschzusätzen, die man nach dem erfindungsgemäßen Verfahren in gleicher Weise mit einer handelsüblichen carboxylgruppenhaltigen Polyvinylacetat-Dispersion "Vinnapas (R)-Dispersion DZN 220" der Firma Wacker, München, umhüllt hatte.Similar results were obtained with washing additives which had been coated in the same way with a commercially available carboxyl group-containing polyvinyl acetate dispersion "Vinnapas (R) dispersion DZN 220" from Wacker, Munich.
Claims (13)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853540833 DE3540833A1 (en) | 1985-11-18 | 1985-11-18 | METHOD FOR COVERING TEXTILE CARE PRODUCTS |
DE3540833 | 1985-11-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0223175A2 true EP0223175A2 (en) | 1987-05-27 |
EP0223175A3 EP0223175A3 (en) | 1989-07-05 |
Family
ID=6286273
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86115553A Withdrawn EP0223175A3 (en) | 1985-11-18 | 1986-11-10 | Process for encapsulating textile-conditioning agents |
Country Status (5)
Country | Link |
---|---|
US (1) | US4752408A (en) |
EP (1) | EP0223175A3 (en) |
JP (1) | JPS62119300A (en) |
DE (1) | DE3540833A1 (en) |
ES (1) | ES2003514A6 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0291198A2 (en) * | 1987-05-14 | 1988-11-17 | The Clorox Company | Films from PVA modified with nonhydrolyzable anionic comonomers containing additives |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4759956A (en) * | 1987-05-22 | 1988-07-26 | Lever Brothers Company | Process for encapsulating particles using polymer latex |
US6818606B1 (en) | 1999-06-16 | 2004-11-16 | Kao Corporation | Article for use in washing in sheet form |
US6258767B1 (en) * | 2000-04-26 | 2001-07-10 | Colgate-Palmolive Co. | Spherical compacted unit dose softener |
US6664226B2 (en) * | 2000-04-26 | 2003-12-16 | Colgate-Palmolive Co | Spherical compacted unit dose softener |
Citations (5)
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GB983243A (en) * | 1960-11-07 | 1965-02-17 | Colgate Palmolive Co | Detergent briquettes |
DE1809836A1 (en) * | 1967-11-28 | 1969-08-28 | Ciba Geigy | Preparation containing an optical brightening agent |
US3772215A (en) * | 1969-06-13 | 1973-11-13 | Nat Patent Dev Corp | Water soluble entrapping of a fragrance |
US4115292A (en) * | 1977-04-20 | 1978-09-19 | The Procter & Gamble Company | Enzyme-containing detergent articles |
EP0164703A2 (en) * | 1984-06-14 | 1985-12-18 | Henkel Kommanditgesellschaft auf Aktien | Additive for washing |
Family Cites Families (2)
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DE1444073A1 (en) * | 1963-04-11 | 1968-10-17 | Henkel & Cie Gmbh | Preparations for stiffening textiles |
MX151028A (en) * | 1978-11-17 | 1984-09-11 | Unilever Nv | IMPROVEMENTS IN INSOLUBLE BAG BUT PERMEABLE TO WATER THAT HAS A DISPERSIBLE PROTECTIVE LAYER OR SOLUBLE IN WATER, WHICH CONTAINS A PARTICULATE DETERGENT COMPOSITION |
-
1985
- 1985-11-18 DE DE19853540833 patent/DE3540833A1/en not_active Withdrawn
-
1986
- 1986-10-09 US US06/916,908 patent/US4752408A/en not_active Expired - Fee Related
- 1986-11-10 EP EP86115553A patent/EP0223175A3/en not_active Withdrawn
- 1986-11-17 ES ES8603058A patent/ES2003514A6/en not_active Expired
- 1986-11-18 JP JP61275070A patent/JPS62119300A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB983243A (en) * | 1960-11-07 | 1965-02-17 | Colgate Palmolive Co | Detergent briquettes |
DE1809836A1 (en) * | 1967-11-28 | 1969-08-28 | Ciba Geigy | Preparation containing an optical brightening agent |
US3772215A (en) * | 1969-06-13 | 1973-11-13 | Nat Patent Dev Corp | Water soluble entrapping of a fragrance |
US4115292A (en) * | 1977-04-20 | 1978-09-19 | The Procter & Gamble Company | Enzyme-containing detergent articles |
EP0164703A2 (en) * | 1984-06-14 | 1985-12-18 | Henkel Kommanditgesellschaft auf Aktien | Additive for washing |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0291198A2 (en) * | 1987-05-14 | 1988-11-17 | The Clorox Company | Films from PVA modified with nonhydrolyzable anionic comonomers containing additives |
EP0291198A3 (en) * | 1987-05-14 | 1990-03-28 | The Clorox Company | Films from pva modified with nonhydrolyzable anionic comonomers in the form of pouches containing cleaning compositions |
Also Published As
Publication number | Publication date |
---|---|
DE3540833A1 (en) | 1987-05-21 |
US4752408A (en) | 1988-06-21 |
JPS62119300A (en) | 1987-05-30 |
ES2003514A6 (en) | 1988-11-01 |
EP0223175A3 (en) | 1989-07-05 |
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