EP0557577A1 - Cleaning cloths with rubber coating containing cellulose-microfibers - Google Patents
Cleaning cloths with rubber coating containing cellulose-microfibers Download PDFInfo
- Publication number
- EP0557577A1 EP0557577A1 EP92115867A EP92115867A EP0557577A1 EP 0557577 A1 EP0557577 A1 EP 0557577A1 EP 92115867 A EP92115867 A EP 92115867A EP 92115867 A EP92115867 A EP 92115867A EP 0557577 A1 EP0557577 A1 EP 0557577A1
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- European Patent Office
- Prior art keywords
- rubber
- weight
- cellulose
- microfibers
- coating
- 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
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0004—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using ultra-fine two-component fibres, e.g. island/sea, or ultra-fine one component fibres (< 1 denier)
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
- A47L13/16—Cloths; Pads; Sponges
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0043—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by their foraminous structure; Characteristics of the foamed layer or of cellular layers
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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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/903—Microfiber, less than 100 micron diameter
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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
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/647—Including a foamed layer or component
- Y10T442/652—Nonwoven fabric is coated, impregnated, or autogenously bonded
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
- Laminated Bodies (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
Description
Die Erfindung befaßt sich mit abriebfesten, porösen, hochsaugfähigen Reinigungstüchern aus Vliesstoff, wie sie zum Beispiel in DE-B 1 560 783 beschrieben sind. Dort wird ein mehrstufiges Herstellungsverfahren beschrieben, welches im wesentlichen umfaßt das zweimalige Imprägnieren mit dazwischengeschaltetem Trocknen eines Wirrfaservlieses, vorzugsweise aus hydrophilen Naturfasern, mit einer schaumförmigen, wäßrigen Bindemitteldispersion aus vulkanisierbarem Kautschuk, das beidseitige, flächige Beschichten des imprägnierten Faserflächengebildes mit einer koagulierbaren, geschäumten Kautschukdispersion, das anschließende Trocknen mit Vulkanisieren, Auswaschen der enthaltenen Porenbildner der Beschichtung und das erneute Trocknen.The invention is concerned with abrasion-resistant, porous, highly absorbent cleaning cloths made of nonwoven, as are described, for example, in DE-B 1 560 783. There, a multi-stage production process is described, which essentially comprises the double impregnation with intermediate drying of a random fiber fleece, preferably made of hydrophilic natural fibers, with a foam-like, aqueous binder dispersion made of vulcanizable rubber, the two-sided, surface coating of the impregnated fiber sheet rubber, with a coagulated, foamable, coagulated the subsequent drying with vulcanization, washing out the pore formers contained in the coating and drying again.
Die genannten Außenbeschichtungen aus Kautschuk sind biologisch nur sehr schwer abbaubar und nicht kompostierfähig. Ferner sind die Oberflächen solcher Reinigungstücher sehr klebrig an und weisen einen spürbar hohen Wischwiderstand auf. Dieses dem Kautschuk eigene Verhalten kann durch Aufstreuen von Talkum gemildert werden. Nach dem Auswaschen, was bei Reinigungstüchern bereits beim Erstgebrauch geschieht, ist das Talkum weitgehend entfernt und die Klebrigkeit wieder vorhanden. Diese kann so stark sein, daß im nassen Zustand zusammengefaltete Tücher nach dem Antrocknen so stark mit sich selbst verklebt sind, daß die Beschichtung bei gewaltsamen Trennen der verklebten Flächen beschädigt wird.The rubber outer coatings mentioned are very difficult to biodegrade and cannot be composted. Furthermore, the surfaces of such cleaning wipes are very sticky and have a noticeably high wiping resistance. This behavior inherent in the rubber can be alleviated by sprinkling talc. After washing out, which already happens with cleaning wipes when used for the first time, the talc is largely removed and the stickiness is present again. This can be so strong that, when dried, folded sheets are so strongly glued to themselves after drying that the coating is damaged if the bonded surfaces are separated by force.
Die Wasseraufnahmefähigkeit eines solches Tuches wird maßgeblich durch die in der Beschichtung vorhandenen Poren, durch die in diese hineinragenden und durch die zwischen den Beschichtungen befindlichen Fasern des Tuchmaterials bestimmt. Analoges gilt für die Bedruckbarkeit, also die Absorptionsfähigkeit für Druckfarben.The water absorption capacity of such a cloth is largely determined by the pores present in the coating, by the protruding into the coating and by the fibers of the cloth material located between the coatings. The same applies to printability, i.e. the absorption capacity for printing inks.
Die vorliegende Erfindung hat zur Aufgabe, die mit geschäumtem Kautschuk beschichteten Oberflächen abriebfester, poröser, hochsaugfähiger Reinigungstücher der gattungsgemäßen Art bei Gebrauch im Griff angenehmer, bei der Trocknung weniger zusammenklebend, gleitfähiger und saugfähiger sowie bei der Herstellung leichter bedruckbar auszugestalten. Die biologische Abbaubarkeit und Kompostierbarkeit solcher Tücher soll ermöglicht werden.The object of the present invention is to make the surfaces coated with foamed rubber more abrasion-resistant, porous, highly absorbent cleaning cloths of the generic type more pleasant to use when in use, less adhesive when drying, more lubricious and absorbent and easier to print during manufacture. The biodegradability and compostability of such wipes should be made possible.
Die Lösung dieser Aufgabe besteht in der Verwendung von Cellulose-Mikrofasern in den geschäumten Kautschukbeschichtungen von Reinigungstüchern aus Vliesstoff. Dabei liegen diese Mikrofasern in Mengen von 20 - 100 Gew.-% vor, bezogen auf das Festkautschukgewicht der Beschichtung.The solution to this problem is the use of cellulose microfibers in the foamed rubber coatings of cleaning cloths made of nonwoven. These microfibers are present in amounts of 20-100% by weight, based on the solid rubber weight of the coating.
Beste Ergebnisse wurden mit Mengen von 20 - 50 Gew.-% erzielt.The best results have been achieved with amounts of 20-50% by weight.
Ferner wird ein unter Verwendung von Cellulose-Mikrofasern gemäß Anspruch 1 hergestelltes Wischtuch beansprucht.Furthermore, a wipe made using cellulose microfibers according to claim 1 is claimed.
Der hier verwendete Begriff "Cellulose-Mikrofasern" umfaßt mechanisch zerkleinerte Cellulose mit Faserlängen von 15 - 200 µm, vorzugsweise bis 60 µm. Diese Fasern bestehen aus natürlichem Zellstoff und sind im Handel erhältlich.The term "cellulose microfibers" used here includes mechanically comminuted cellulose with fiber lengths of 15-200 μm, preferably up to 60 μm. These fibers are made from natural pulp and are commercially available.
Unter "Kautschuk" sollen im folgenden alle Elastomere und -mischungen verstanden werden, die bestehen oder hergestellt sind aus Naturkautschuk, synthetischen NBR- oder SBR-Latices sowie aus Mischpolymerisaten von Butadien oder Isopren. Sie können selbstvernetzend sein oder nach herkömmlichen Verfahren vulkanisiert werden, wobei jedoch im Sinne dieser Erfindung bakterizid wirkende Hilfsstoffe vermieden werden, um die gute biologische Abbaubarkeit bzw. Kompostierbarkeit und Verrottbarkeit der Cellulose nicht zu beeinträchtigen.In the following, "rubber" is to be understood to mean all elastomers and mixtures which consist or are made from natural rubber, synthetic NBR or SBR latices and from copolymers of butadiene or isoprene. They can be self-crosslinking or vulcanized by conventional methods, but in the sense of this invention, bactericidal auxiliaries are avoided in order not to impair the good biodegradability or compostability and rotability of the cellulose.
Zunächst war nicht zu erwarten, daß die erfindungsgemäße Verwendung von Cellulose-Mikrofasern ein Reinigungstuch entstehen läßt, welches trotz des hohen Gehaltes an - dem Angriff von Mikroorganismen nur sehr schwer zugänglichem - Kautschuk biologisch abbaubar oder kompostierbar ist.Initially, it was not to be expected that the use of cellulose microfibers according to the invention would give rise to a cleaning cloth which, despite the high content of rubber, which is very difficult to access by microorganisms, is biodegradable or compostable.
Es zeigte sich, daß mit zunehmender Menge an Cellulose-Mikrofasern, in der Literatur auch als "Cellulosepulver" oder "Pulvercellulose" bezeichnet, die Abbaubarkeit erleichtert wird. Man darf jedoch den Cellulosegehalt in der Kautschuk-Beschichtungsmasse nicht über die erfindungsgemäße Grenze erhöhen, da sonst die guten Eigenschaften eines Reinigungstuchs verlorengehen würden, insbesondere die Festigkeit, die Trocknungsfähigkeit und der tuchartige Griff.It was found that with an increasing amount of cellulose microfibers, also referred to in the literature as "cellulose powder" or "powder cellulose", the degradability is facilitated. However, the cellulose content in the rubber coating composition must not be increased beyond the limit according to the invention, since otherwise the good properties of a cleaning cloth would be lost, in particular the strength, the drying ability and the cloth-like feel.
Ohne den störenden Einfluß bakterizider Hilfsstoffe in der Kautschukbeschichtung wirken die Cellulosefasern offenbar als "Inseln" aus Naturstoff, welche den Nährboden und den Raum zum Ansiedeln von Bakterien darstellen und von wo aus der verstärkte, zersetzende Angriff auf den umgebenden Kautschuk erfolgt.Without the disruptive influence of bactericidal auxiliaries in the rubber coating, the cellulose fibers apparently act as "islands" made of natural material, which represent the breeding ground and the space for the settlement of bacteria and from where the intensified, decomposing attack on the surrounding rubber takes place.
Dieser Vorteil wird bei Beachtung der erfindungsgemäßen Mengengrenzen nicht mit dem Nachteil einer Minderung der Festigkeit der Beschichtung erkauft, wie dies z.B. bei Stärkezugabe zu Kunststoffolien zum gleichen Zweck in negativer Weise der Fall ist.If the quantity limits according to the invention are observed, this advantage is not bought with the disadvantage of reducing the strength of the coating, as is the case, for example, if starch is added to plastic films for the same purpose, this is the case in a negative way.
Als weiterer Vorteil ist die Oberfläche eines erfindungsgemäß ausgerüsteten Reinigungstuches weitaus weniger klebrig als ohne Beigabe von Cellulose-Mikrofasern. Damit entfällt dann auch, je nach Gehalt an Füllstoff, zum großen Teil bis vollständig die sonst übliche Bepuderung der Oberfläche mit Talkum, welche bisher zur Verbesserung der Gleiteigenschaften notwendig war.As a further advantage, the surface of a cleaning cloth equipped according to the invention is far less sticky than without the addition of cellulose microfibers. Depending on the filler content, the usual powdering of the surface with talcum powder, which was previously necessary to improve the sliding properties, is then largely or completely eliminated.
Prüfungen zur Naßverklebung ergaben, daß die erforderliche Kraft zur Trennung feucht zusammengelegter und sodann während der Trocknung verklebter, erfindungsgemäßer Tücher nur noch bis zu 1/4 derjenigen Kraft betrug, die aufgebracht werden mußte, um solcherart verklebte Tücher in einer analogen Ausgestaltung, jedoch ohne den Zusatz von Cellulose-Mikrofasern, voneinander zu trennen.Tests for wet gluing showed that the force required for separating wet cloths and then glued during drying, according to the invention, was only up to 1/4 of the force that had to be applied in order to glue cloths of this type in an analog design, but without the Addition of cellulose microfibers to separate them.
In gleicher Weise reduziert sich der Gleitwiderstand erfindungsgemäßer Tücher in feuchtem Zustand um über die Hälfte.In the same way, the sliding resistance of wipes according to the invention is reduced by more than half when wet.
Mit zunehmenden Cellulosegehalt verstärken sich die genannten Effekte.The effects mentioned increase with increasing cellulose content.
Die höhere Gleitfähigkeit bewirkt einen geringeren Widerstand beim Wischen vor allem auch im feuchten Zustand des Tuches; es ist so ein spürbar geringerer Kraftaufwand erforderlich.The higher lubricity results in less resistance when wiping, especially when the cloth is wet; so a noticeably less effort is required.
Die Dochtwirkung der Cellulose-Mikrofasern fördert, im Zusammenhang mit den offenen Poren der Kautschukbeschichtung, die Wasseraufnahmefähigkeit und Weiterleitung des Wassers in das Innere des Tuches.The wicking effect of the cellulose microfibers, in connection with the open pores of the rubber coating, promotes water absorption and the transmission of water into the interior of the cloth.
Aus dieser Eigenschaft resultiert auch die sehr gute Bedruckbarkeit erfindungsgemäß ausgestatteter Wischtücher, da der Farbstoff rascher und tiefer in die Oberflächenbeschichtung eindringen kann. Die Behinderung der Penetrationsfähigkeit durch oberflächlich aufgebrachtes Talkum entfällt.This property also results in the very good printability of wipes equipped according to the invention, since the dye can penetrate the surface coating more quickly and more deeply. The hindrance to penetration by superficially applied talc does not apply.
Die Verbesserung der Farbechtheit ist signifikant, insbesondere im Vergleich mit den mit Talkum ausgerüsteten Beschichtungen, bei denen die Druckfarbe anteilweise auf dem Talkum sitzt anstatt auf dem eigentlichen Tuch.The improvement in color fastness is significant, especially in comparison with the coatings provided with talc, in which the printing ink sits partly on the talc instead of on the actual cloth.
Mit Cellulosefaser-Gehalten von 20 - 50 Gew.-%, bezogen auf das Festkautschukgewicht der Beschichtung, wurde ein Optimum an Materialeinsatz und den oben genannten Vorteilen erzielt. Die ebenfalls durch die Erfindung umfaßten Gehalte über 50 - 100 Gew.-% an Mikrofasern sind denkbar für Fälle, wo die biologische Abbaubarkeit bzw. Kompostierbarkeit noch weiter intensiviert werden soll.With cellulose fiber contents of 20-50% by weight, based on the solid rubber weight of the coating, an optimum use of materials and the advantages mentioned above were achieved. The contents of more than 50-100% by weight of microfibers, likewise encompassed by the invention, are conceivable for cases in which the biodegradability or compostability is to be intensified still further.
Die Herstellung des Basisvliesstoffs kann nach bekannten Verfahren erfolgen, wobei man insbesondere die Verfestigung der Fasern miteinander zweckmäßig durch Nadeln und/oder durch in die Fasermischung eingebrachte Bindefasern bewirken kann, die durch Einfluß von Hitze aktiviert werden. Auch die bekannte Verfestigung mit Kunststoffdispersionen oder mit Kautschuklatices ist möglich.The production of the base nonwoven can be carried out according to known methods, whereby in particular the fibers can be appropriately consolidated with one another by needles and / or by binding fibers introduced into the fiber mixture, which are activated by the influence of heat. The known solidification with plastic dispersions or with rubber latices is also possible.
Die Erfindung wird nun anhand der folgenden Beispiele näher erläutert:The invention will now be explained in more detail using the following examples:
Ein aus 30 Gew.-% Baumwolle, 50 Gew.-% Zellwolle und 20 Gew.-% Polyesterfasern bestehendes Wirrfaservlies wird in einem Nadelstuhl mechanisch vorgebunden, mit Imprägniermischung imprägniert und anschließend getrocknet. Die Imprägniermischung enthält Kautschuklatex, polymerisiert aus Butadien und Acrylnitril, Vulkanisationshilfsmittel, Tenside und Stabilisierungsmittel sowie Kochsalz als Porenbildner. Der Kochsalzgehalt entspricht dem Festgehalt an Kautschuk.A random fiber fleece consisting of 30% by weight of cotton, 50% by weight of cellulose and 20% by weight of polyester fibers is mechanically pre-bound in a needle chair, impregnated with an impregnation mixture and then dried. The impregnation mixture contains rubber latex, polymerized from butadiene and acrylonitrile, vulcanization aids, surfactants and stabilizers as well as table salt as a pore former. The salt content corresponds to the solid rubber content.
Dieses so mechanisch und chemisch vorgebundene Basismaterial wird anschließend beidseitig mit einer wärmesensiblen und verschäumten Kautschukdispersion bestrichen, die ein Mischpolymerisat aus Butadien, Acrylnitril und Methacrylsäure, nichtbakterizide Vulkanisationshilfsmittel, Tenside und Stabilisierungsmittel sowie 30 Gew.-%, bezogen auf das Kautschukfestgewicht der Beschichtung, Cellulose-Mikrofasern mit einer Faserlänge von etwa 30 µm enthält. Diese Fasern sind im Handel erhältlich, z.B. unter der Bezeichnung Arbocell BE 600/30 der Firma J. Rettenmaier & Söhne GmbH & Co. in Ellwangen-Holzmühle.This mechanically and chemically bonded base material is then coated on both sides with a heat-sensitive and foamed rubber dispersion, which is a copolymer of butadiene, acrylonitrile and methacrylic acid, non-bactericidal vulcanization aids, surfactants and stabilizing agents and 30% by weight, based on the solid rubber weight of the coating, Contains microfibers with a fiber length of about 30 microns. These fibers are commercially available, e.g. under the name Arbocell BE 600/30 from J. Rettenmaier & Söhne GmbH & Co. in Ellwangen-Holzmühle.
Nach dem Trocknen und Vulkanisieren werden die wasserlöslichen Bestandteile mit Wasser ausgewaschen und das Fertigprodukt endgetrocknet.After drying and vulcanizing, the water-soluble components are washed out with water and the finished product is finally dried.
Das nach Zuschneiden in geeignete Formatgrößen zum Reinigen von Fenstern, Möbeln, Sanitäreinrichtungen, Kraftfahrzeugen und anderen Flächen geeignete Tuchmaterial enthält auf 100 Gewichtsteile der oben genannten Basis-Fasermischung 170 Gewichtsteile Kautschukvulkanisat, davon je 60 Gewichtsteile als Streichmischung auf jeder Seite aufgebracht. Diese Mischung hat einen Gehalt von je 30 Gew.-% Cellulose-Mikrofasern, bezogen auf den in ihr enthaltenen Kautschuk.After cutting into suitable format sizes for cleaning windows, furniture, sanitary facilities, motor vehicles and other surfaces, the cloth material contains 170 parts by weight of rubber vulcanizate per 100 parts by weight of the above-mentioned basic fiber mixture, 60 parts by weight of which are applied as a coating mixture on each side. This mixture has a content of 30% by weight of cellulose microfibers, based on the rubber it contains.
Gegenüber Tüchern, die in gleicher Weise, jedoch ohne Zusatz von Cellulose-Mikrofasern hergestellt sind, zeichnet sich das so hergestellte Reinigungstuch durch vorteilhafte Eigenschaften aus:Compared to wipes that are produced in the same way, but without the addition of cellulose microfibers, the cleaning wipe thus produced is characterized by advantageous properties:
Geringere Naßverklebung (feuchtes Tuch wird übereinandergelegt und dann getrocknet), ausgedrückt als Trennkraft in N/50 mm Streifenbreite:
Die Wischkraft, ausgedrückt in N/500 cm², sinkt ebenfalls bei Einsatz von Cellulose-Mikrofasern in der Kautschuk-Beschichtung, verglichen mit Wischflächen des Standes der Technik:
Nach vier Wochen zeigten in feuchte Erde eingegrabene Proben von Wischtüchern gemäß Beispiel 1 bereits deutliche Zersetzungserscheinungen, während ein nicht mit Cellulose-Mikrofasern ausgerüstets, sonst analog aufgebautes Tuch keine Verrottungsspuren aufwies.After four weeks, samples of wipes according to Example 1 buried in moist earth already showed clear signs of decomposition, while a cloth not equipped with cellulose microfibers, which was otherwise constructed analogously, showed no signs of rotting.
Ein aus 80 Gew.-% Zellwolle und 20 Gew.-% Polypropylen bestehendes Wirrfaservlies wird in einen Nadelstuhl mechanisch vorgebunden und in einem Erhitzungsaggregat auf so hohe Temperaturen erhitzt, daß die Polypropylenfasern durch Erweichen oder Schmelzen die benachbarten Zellwollfasern verkleben und ein vorgebundenes Basismaterial entsteht. Das Erhitzungsaggregat kann ein Hitzetunnel und/oder ein Kalander mit beheizbaren Walzen sein.A non-woven fabric consisting of 80% by weight of cellulose and 20% by weight of polypropylene is mechanically bound in a needle chair and heated in a heating unit to such high temperatures that the polypropylene fibers stick to the neighboring cellulose fibers by softening or melting and a pre-bound base material is produced. The heating unit can be a heat tunnel and / or a calender with heatable rollers.
Dieses so vorgebundene Basismaterial wird anschließend beidseitig mit einer wärmesensiblen und verschäumten Kautschukdispersion wie in Beispiel 1 bestrichen.This base material pre-bound in this way is then coated on both sides with a heat-sensitive and foamed rubber dispersion as in Example 1.
Der Vorteil dieser Ausführungsvariante ist, daß das Basismaterial vollkommen frei von bakterizid wirkenden Chemikalien ist, nicht nur die Kautschukbeschichtung.The advantage of this variant is that the base material is completely free of bactericidal chemicals, not just the rubber coating.
Ein Basismaterial, hergestellt wie in Beispiel 2, wird nur einseitig mit einer wärmesensiblen und verschäumten Kautschukdispersion wie in Beispiel 1 bestrichen.A base material, produced as in Example 2, is coated on only one side with a heat-sensitive and foamed rubber dispersion as in Example 1.
Der Verzicht auf eine zweite beschichtete Seite hat den weiteren Vorteil, daß das Gewichtsverhältnis von - als Nährboden für Bakterien dienender - Cellulose zu Kautschuk noch günstiger ist, so daß durch diese Zusammensetzung des Systems dessen Angreifbarkeit für Mikroorganismen und damit die Verrottbarkeit und Kompostierbarkeit weiter gefördert werden.Dispensing with a second coated side has the further advantage that the weight ratio of cellulose to rubber, which serves as a breeding ground for bacteria, is even more favorable, so that this composition of the system further promotes its vulnerability to microorganisms and thus rot and compostability .
Claims (3)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4205547A DE4205547C1 (en) | 1992-02-24 | 1992-02-24 | |
| DE4205547 | 1992-02-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0557577A1 true EP0557577A1 (en) | 1993-09-01 |
| EP0557577B1 EP0557577B1 (en) | 1995-08-30 |
Family
ID=6452402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92115867A Expired - Lifetime EP0557577B1 (en) | 1992-02-24 | 1992-09-17 | Cleaning cloths with rubber coating containing cellulose-microfibers |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5300248A (en) |
| EP (1) | EP0557577B1 (en) |
| AT (1) | ATE127176T1 (en) |
| DE (2) | DE4205547C1 (en) |
| DK (1) | DK0557577T3 (en) |
| ES (1) | ES2077316T3 (en) |
| GR (1) | GR3017673T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6764988B2 (en) | 2001-04-18 | 2004-07-20 | Kimberly-Clark Worldwide, Inc. | Skin cleansing composition incorporating anionic particles |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4422373A1 (en) * | 1994-06-27 | 1996-01-04 | Henkel Ecolab Gmbh & Co Ohg | Mop cover for a floor mopping device |
| DE19600844A1 (en) * | 1996-01-12 | 1997-07-17 | Heidelberger Druckmasch Ag | Cleaning device for directly produced printing formes |
| US6153136A (en) * | 1997-10-17 | 2000-11-28 | Board Of Supervisors Of Louisiana State University And Agricultural And Mechanical College | Process for manufacturing cellulosic microfibers |
| US6550639B2 (en) | 2000-12-05 | 2003-04-22 | S.C. Johnson & Son, Inc. | Triboelectric system |
| US20050003178A1 (en) * | 2003-04-21 | 2005-01-06 | Detert James W. | Apparatus and methods for the attachment of materials to polyurethane foam, and articles made using them |
| CN103102547B (en) * | 2013-01-28 | 2014-10-08 | 南京理工大学 | XNBR (Carboxy Terminated Nitrile Rubber) vulcanized rubber containing bacterial cellulose whisker and preparation method of XNBR vulcanized rubber |
| DE102018129439A1 (en) * | 2018-11-22 | 2020-05-28 | Carl Freudenberg Kg | Cleaning textile |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2069327A (en) * | 1980-02-18 | 1981-08-26 | Freudenberg Carl Kg | Cleaning cloths |
| EP0047797A2 (en) * | 1980-09-15 | 1982-03-24 | Firma Carl Freudenberg | Cleaning cloth |
| EP0076888A2 (en) * | 1981-10-14 | 1983-04-20 | Firma Carl Freudenberg | Absorbent flat product, and process for its manufacture |
| EP0117458A2 (en) * | 1983-02-26 | 1984-09-05 | Firma Carl Freudenberg | Method of making voluminous fibrous textile fabrics |
| EP0357496A2 (en) * | 1988-09-02 | 1990-03-07 | Colgate-Palmolive Company | Wiping cloth |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1706294A (en) * | 1925-04-11 | 1929-03-19 | Isadore M Jacobsohn | Aircraft covering |
| US2459874A (en) * | 1947-03-14 | 1949-01-25 | Du Pont | Coating composition and sheets coated therewith |
| US3119714A (en) * | 1960-08-03 | 1964-01-28 | Joseph R Ehrlich | Impregnated and/or coated cloth, filaments, fibers or the like |
| DE1560783C3 (en) * | 1964-12-31 | 1975-04-17 | Fa. Carl Freudenberg, 6940 Weinheim | Process for the production of abrasion-resistant, porous and highly absorbent nonwovens |
| DE2926882A1 (en) * | 1979-07-03 | 1981-01-22 | Prato Commerz S P A | Non-woven fabric impregnation with emulsion-de-stabiliser - before applying acrylic! latex emulsion to form coagulated coating preventing hair emergence |
| US4328279A (en) * | 1981-01-29 | 1982-05-04 | Kimberly-Clark Corporation | Clean room wiper |
| US4468428A (en) * | 1982-06-01 | 1984-08-28 | The Procter & Gamble Company | Hydrophilic microfibrous absorbent webs |
| US4678698A (en) * | 1983-04-12 | 1987-07-07 | Minnesota Mining And Manufacturing Company | Contact lens cleaning article |
| US4567093A (en) * | 1983-04-25 | 1986-01-28 | Achilles Corporation | Rubber coated fabric |
| US5198292A (en) * | 1988-06-15 | 1993-03-30 | International Paper Company | Tack cloth for removing solid particles from solid surfaces and method for its manufacture |
| US5206087A (en) * | 1990-02-28 | 1993-04-27 | Director-General Of Agency Of Industrial Science And Technology | Biodecomposable or biodisintegrable moldable material |
-
1992
- 1992-02-24 DE DE4205547A patent/DE4205547C1/de not_active Expired - Fee Related
- 1992-09-17 DE DE59203474T patent/DE59203474D1/en not_active Expired - Lifetime
- 1992-09-17 DK DK92115867.1T patent/DK0557577T3/en active
- 1992-09-17 AT AT92115867T patent/ATE127176T1/en active
- 1992-09-17 ES ES92115867T patent/ES2077316T3/en not_active Expired - Lifetime
- 1992-09-17 EP EP92115867A patent/EP0557577B1/en not_active Expired - Lifetime
-
1993
- 1993-02-24 US US08/021,819 patent/US5300248A/en not_active Expired - Lifetime
-
1995
- 1995-10-06 GR GR950402777T patent/GR3017673T3/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2069327A (en) * | 1980-02-18 | 1981-08-26 | Freudenberg Carl Kg | Cleaning cloths |
| EP0047797A2 (en) * | 1980-09-15 | 1982-03-24 | Firma Carl Freudenberg | Cleaning cloth |
| US4525411A (en) * | 1980-09-15 | 1985-06-25 | Firma Carl Freudenberg | Cleaning cloth |
| EP0076888A2 (en) * | 1981-10-14 | 1983-04-20 | Firma Carl Freudenberg | Absorbent flat product, and process for its manufacture |
| EP0117458A2 (en) * | 1983-02-26 | 1984-09-05 | Firma Carl Freudenberg | Method of making voluminous fibrous textile fabrics |
| EP0357496A2 (en) * | 1988-09-02 | 1990-03-07 | Colgate-Palmolive Company | Wiping cloth |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6764988B2 (en) | 2001-04-18 | 2004-07-20 | Kimberly-Clark Worldwide, Inc. | Skin cleansing composition incorporating anionic particles |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4205547C1 (en) | 1993-01-21 |
| GR3017673T3 (en) | 1996-01-31 |
| US5300248A (en) | 1994-04-05 |
| EP0557577B1 (en) | 1995-08-30 |
| ATE127176T1 (en) | 1995-09-15 |
| DK0557577T3 (en) | 1995-12-04 |
| ES2077316T3 (en) | 1995-11-16 |
| DE59203474D1 (en) | 1995-10-05 |
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