DE19957693A1 - Clean room cleaning cloth - Google Patents

Clean room cleaning cloth

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Publication number
DE19957693A1
DE19957693A1 DE19957693A DE19957693A DE19957693A1 DE 19957693 A1 DE19957693 A1 DE 19957693A1 DE 19957693 A DE19957693 A DE 19957693A DE 19957693 A DE19957693 A DE 19957693A DE 19957693 A1 DE19957693 A1 DE 19957693A1
Authority
DE
Germany
Prior art keywords
clean room
cleaning cloth
continuous filaments
room cleaning
titer
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
DE19957693A
Other languages
German (de)
Other versions
DE19957693C2 (en
Inventor
Robert Groten
Gernot Buerger
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.)
Carl Freudenberg KG
Original Assignee
Carl Freudenberg 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
Priority to DE19957693A priority Critical patent/DE19957693C2/en
Application filed by Carl Freudenberg KG filed Critical Carl Freudenberg KG
Priority to JP2001542621A priority patent/JP2003515407A/en
Priority to KR10-2002-7006922A priority patent/KR100491846B1/en
Priority to ES00989869T priority patent/ES2226974T3/en
Priority to AU26672/01A priority patent/AU2667201A/en
Priority to DE50008157T priority patent/DE50008157D1/en
Priority to CNB008164746A priority patent/CN1158044C/en
Priority to PCT/EP2000/011584 priority patent/WO2001040558A2/en
Priority to EP00989869A priority patent/EP1234066B1/en
Priority to AT00989869T priority patent/ATE278827T1/en
Publication of DE19957693A1 publication Critical patent/DE19957693A1/en
Application granted granted Critical
Publication of DE19957693C2 publication Critical patent/DE19957693C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/016—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the fineness
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/10—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically
    • D04H3/105—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically by needling
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools, brushes, or analogous members
    • B08B1/143—
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H13/00—Other non-woven fabrics
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/009—Condensation or reaction polymers
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/10—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically
    • D04H3/11—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically by fluid jet
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/02—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/02—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling
    • D04H5/03—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling by fluid jet

Abstract

The invention relates to a clean-room cleaning cloth consisting of a microfilament nonwoven material with a substance weight of 30 to 300 g/m<2>. Said nonwoven material consists of melt-spun, aerodynamically drawn multi-component continuous filaments which are immediately arranged so as to form a nonwoven and which have a titer of 1.5 to 5 dtex. Optionally, at least 80 % of the multi-component continuous filaments can be split into micro-continuous filaments with a titer of 0.1 to 1.0 dtex after presetting and then set.

Description

Die Erfindung betrifft ein Reinraum-Reinigungstuch, bestehend aus einem Mikrofilament-Vliesstoff mit Flächengewichten von 30 bis 300 g/m2.The invention relates to a clean room cleaning cloth, consisting of a microfilament nonwoven fabric with basis weights of 30 to 300 g / m 2 .

Reinräume finden eine immer breitere Nutzung für die Herstellung, Untersuchung und Wartung von Präzisionserzeugnissen, bei denen es sehr wichtig ist, daß verschiedene Arbeitsschritte in einer Umgebung stattfinden, die weitestgehend frei von kleinen Partikeln ist. Die Verbesserungen bei der Herstellung von Hochtechnologie-Erzeugnissen wie mikroelektronischen Schaltkreisen, optischen oder pharmazeutischen Erzeugnissen stellen immer höhere Anforderungen an den Partikelgehalt der Reinräume, der typischer Weise für einen Reinraum der Klasse 100 im Bereich von bis zu 100 Teilchen in der Größe von ≧ 0,5 µm pro Kubikfuß Raumluft oder in der äquivalenten metrischen Reinheitsklasse M 3,5 von nicht mehr als 3530 Teilchen in der Größe von ≧ 0,5 µm pro Kubikmeter Raumluft [pro Million (parts per million - ppm) oder zunehmend in Teilchen pro Milliarde (parts per billion - ppb)] gefordert wird. Die integrierten Schaltkreise werden auf sogenannten "Wafern", dünnen Silizium-Einkristall-Scheiben hergestellt. Die integrierten Schaltkreise erfordern eine exakte elektrische Verbindung der Transistoren und der anderen elektrischen Bauelemente untereinander. Die einzelnen Schaltkreis- Bauelemente sind durch einen elektrisch leitfähigen Film mit einander verbunden, der aus aufgedampften Metall besteht. In dieser Filmschicht werden die Leiterbahnstrukturen durch einen Photo-Ätzprozeß erzeugt. Eine Isolationsschicht zwischen den darunterliegenden Halbleiterelementen und der aufgedampften Metallschicht gestattet eine elektrische Verbindung nur an den dafür vorgesehenen Stellen. Die Isolationsschicht wird auf der Oberfläche des "Wafers" aufgebracht, nachdem die einzelnen Bauelemente erzeugt, aber bevor der "Wafer" zur Herstellung der Leiterbahnstruktur mit dem leitfähigen Metall bedampft wird. Verunreinigungen wie Faserbruchstücke oder Staubteilchen können zu Kurzschlüssen zwischen den Bauelementen und damit zumindest zu einem teilweisen Ausfall der vorgesehenen Schaltkreisfunktionen führen. Deshalb besteht eine Grundforderung darin, alle Oberflächen und Werkstücke so frei wie möglich von diesen Verunreinigungen zu halten.Cleanrooms are increasingly used for manufacturing, Examination and maintenance of precision products where it is very it is important that various work steps take place in an environment that is largely free of small particles. The improvements in the Manufacture of high technology products such as microelectronic Circuits, optical or pharmaceutical products always pose higher requirements for the particle content of the clean rooms, the more typical Way for a class 100 clean room in the range of up to 100 particles in the size of ≧ 0.5 µm per cubic foot of indoor air or in the equivalent Metric purity class M 3.5 of no more than 3530 particles in the Size of ≧ 0.5 µm per cubic meter of indoor air [per million (parts per million - ppm) or increasingly in parts per billion (ppb)] is required. The integrated circuits are on so-called "wafers", thin silicon single crystal wafers. The integrated circuits require an exact electrical connection of the transistors and the others electrical components with each other. The individual circuit Components are interconnected by an electrically conductive film connected, which consists of evaporated metal. Be in this film layer  the conductor track structures are produced by a photo-etching process. A Insulation layer between the underlying semiconductor elements and the evaporated metal layer allows an electrical connection only to the designated places. The insulation layer is on the surface of the "Wafers" applied after the individual components were created, but before the "wafer" for producing the conductor track structure with the conductive metal is steamed. Impurities such as fiber fragments or dust particles can cause short circuits between the components and thus at least a partial failure of the intended circuit functions. Therefore, a basic requirement is all surfaces and workpieces to keep them as free as possible from these contaminants.

Aus den Dokumenten US 4,888,229 und US 5,229,181 sind gewebte oder gestrickte Reinigungstücher bekannt, die durch die spezielle Einfassung ihrer Kanten, die Freisetzung von Fusseln oder Faserbruchstücken verhindern sollen. Weiterhin sind aus den Dokumenten US 4,328,279 und 5,736,469 Reinraum-Reinigungstüchern bekannt, die aus Vliesstoffen bestehen. Auf die Oberfläche der die Vliesstoffe bildenden Fasern wird zur Verringerung der Menge an extrahierbaren Ionen oder zur Verringerung der elektrostatischen Aufladung eine chemische Schlichte aufgebracht. Die Dokumente US 5,320,900 und US 5,645,916 beschreiben Reinraum-Reinigungstüchern, die aus Fasermischungen bestehen und mittels einer Wasserstrahlbehandlung zu Vliesstoffen verfestigt wurden. Als Fasern werden synthetische Fasern wie Polyester und Zellulose- oder Zelluloseregeneratfasern angegeben. Nachteilig an den bekannten Reinraum-Reinigungstüchern ist, daß sie keinem Waschprozeß unterzogen werden können, ohne den die höchsten Reinraumklassen 10 oder besser, nicht erreicht werden kann. Deshalb können diese Klassen heute nur mit Geweben oder Gestricken kontinuierlicher Filamente bedient werden.From the documents US 4,888,229 and US 5,229,181 are woven or knitted cleaning wipes known by the special edging of their Edges that prevent the release of lint or fiber fragments should. Furthermore, US Pat. Nos. 4,328,279 and 5,736,469 Clean room wipes known, which consist of nonwovens. On the Surface of the fibers forming the nonwovens is used to reduce the Amount of extractable ions or to reduce electrostatic A chemical sizing is applied to the charge. The documents US 5,320,900 and US 5,645,916 describe clean room wipes that consist of fiber mixtures and by means of a water jet treatment Nonwovens were consolidated. Synthetic fibers such as Polyester and cellulose or regenerated cellulose fibers specified. Disadvantageous of the known clean room wipes is that they are not Washing process can be subjected to the highest without Clean room classes 10 or better cannot be achieved. Therefore can these classes today only with fabrics or knitted fabrics more continuously Filaments are operated.

Die Erfindung hat sich die Aufgabe gestellt, preiswertes, waschbares Reinraum- Reinigungstuch, welches den Anforderungen der Reinraumklasse 100 entspricht, sowie ein Verfahren zu seiner Herstellung anzugeben. Durch einen nachfolgenden Reinraumwaschprozess kann das erfindungsgemäße Reinraum- Reinigungstuch auf Mikrofilamentspinnvliesstoffbasis in der Reinraumklasse 10 oder besser Anwendung finden.The invention has set itself the task of inexpensive, washable clean room Cleaning cloth that meets the requirements of clean room class 100 corresponds, and to specify a process for its production. Through a subsequent clean room washing process, the clean room Cleaning cloth based on microfilament spunbond nonwoven in clean room class 10 or better apply.

Erfindungsgemäß wird die Aufgabe durch Reinraum-Reinigungstuch gelöst, welches aus einem Mikrofilament-Vliesstoff mit Flächengewichten von 30 bis 300 g/m2, wobei der Vliesstoff aus schmelzgesponnenen, aerodynamisch verstreckten und unmittelbar zu einem Vlies abgelegten Mehrkomponenten- Endlosfilamenten mit einem Titer 1,5 bis 5 dtex besteht und die Mehrkomponenten-Endlosfilamente zumindest zu 80% zu Mikro- Endlosfilamenten mit einem Titer von 0,1 bis 1,0 dtex gesplittet und verfestigt sind. Ein solches Reinraum-Reinigungstuch weist eine Oberflächenstruktur auf, in die Staubteilchen und Flüssigkeiten gut eindringen und darin festgehalten werden. Darüber hinaus liegen nur auf Grund der Bildung aus Endlosfilamenten nur sehr wenige Faserenden im Reinraum-Reinigungstuch vor. Es werden fusselfreie Reinigungstücher erhalten, deren Kanten nicht extra umgenäht oder eingefaßt werden müssen.According to the invention, the object is achieved by a cleanroom cleaning cloth, which consists of a microfilament nonwoven fabric with basis weights of 30 to 300 g / m 2 , the nonwoven fabric being melt-spun, aerodynamically stretched, and multi-component filaments with a titer of 1.5 that are deposited directly into a nonwoven fabric up to 5 dtex and the multi-component continuous filaments are at least 80% split and solidified into micro continuous filaments with a titer of 0.1 to 1.0 dtex. Such a clean room cleaning cloth has a surface structure into which dust particles and liquids penetrate well and are held therein. In addition, there are only very few fiber ends in the clean room cleaning cloth due to the formation of continuous filaments. Lint-free cleaning cloths are obtained, the edges of which do not have to be sewn or edged.

Vorzugsweise ist das Reinraum-Reinigungstuch eines, bei dem der Vliesstoff aus schmelzgesponnenen, aerodynamisch verstreckten und unmittelbar zu einem Vlies abgelegten Mehrkomponenten-Endlosfilamenten mit einem Titer 2 bis 3 dtex besteht und die Mehrkomponenten-Endlosfilamente zumindest zu 80 % zu Mikro-Endlosfilamenten mit einem Titer von 0,1 bis 0,3 dtex gesplittet und verfestigt sind.Preferably, the clean room wipe is one in which the nonwoven fabric is used made of melt-spun, aerodynamically stretched and immediately closed a multi-component filament with a titer 2 deposited up to 3 dtex and the multicomponent filaments at least 80 % split into continuous micro filaments with a titer of 0.1 to 0.3 dtex and are solidified.

Vorzugsweise ist das Reinraum-Reinigungstuch eines, bei dem das Mehrkomponenten-Endlosfilament ein Bikomponenten-Endlosfilament aus zwei inkompatiblen Polymeren, insbesondere einem Polyester und einem Polyamid, ist. Ein solches Bikomponenten-Endlosfilament weist eine gute Spaltbarkeit in Supermikro-Endlosfilamenten auf und bewirkt ein günstiges Verhältnis von Festigkeit zu Flächengewicht auf.Preferably, the clean room wipe is one that does Multi-component continuous filament a bicomponent continuous filament made of two incompatible polymers, especially a polyester and a polyamide,  is. Such a continuous bicomponent filament has good cleavage Super micro continuous filaments and creates a favorable ratio of Strength to basis weight.

Vorzugsweise ist das Reinraum-Reinigungstuch eines, bei dem die Mehrkomponenten-Endlosfilamente einen Querschnitt mit orangenartiger oder auch "Pie" genannten Multisegment-Struktur aufweisen, wobei die Segmente alternierend jeweils eines der beiden inkompatiblen Polymeren enthalten. Neben dieser orangenartigen Multisegment-Struktur der Mehrkomponenten- Endlosfilamente ist auch eine side-by-side (s/s) Anordnung der inkompatiblen Polymeren im Mehrkomponenten-Endlosfilament möglich, die vorzugsweise zur Erzeugung gekräuselter Filamente genutzt wird. Solche Anordnungen der inkompatiblen Polymeren im Mehrkomponenten-Endlosfilament haben sich als sehr gut spaltbar erwiesen.Preferably the clean room wipe is one in which the Multicomponent filaments a cross section with orange or also have a "segment" called a multi-segment structure, the segments alternately each contain one of the two incompatible polymers. In addition to this orange-like multi-segment structure of the multi-component Continuous filament is also a side-by-side (s / s) arrangement of the incompatible Polymers in the multi-component continuous filament possible, preferably for Generation of crimped filaments is used. Such arrangements of incompatible polymers in the multi-component continuous filament have proven to be proven to be easily cleavable.

Vorzugsweise ist das Reinraum-Reinigungstuch weiterhin eines, bei dem mindestens eines der das Mehrkomponenten-Endlosfilament bildenden inkompatiblen Polymeren ein Additiv, wie Farbpigmente, permanent wirkende Antistatika und/oder die hydrophilen oder hydrophoben Eigenschaften beeinflussende Zusätze maximal in den Mengen enthält, die den Anforderungen an die zulässigen Extrahierbarkeitswerte in Wasser und Isopropanol genügen. Das aus spinngefärbten Filamenten bestehende Reinraum-Reinigungstuch weist eine sehr gute Waschbeständigkeit auf. Weiterhin können durch die Zusätze statische Aufladungen vermindert bzw. vermieden und die Feuchtigkeits-Transporteigenschaften verbessert werden.The clean room cleaning cloth is preferably also one in which at least one of the multi-component continuous filament incompatible polymers an additive, such as color pigments, permanently acting Antistatic agents and / or the hydrophilic or hydrophobic properties influencing additives contains at most in the amounts that the Requirements for the permissible extractability values in water and Isopropanol is sufficient. The spun-colored filament Clean room cleaning cloth has a very good wash resistance. Static charges can also be reduced or avoided and the moisture transport properties are improved.

Das erfindungsgemäße Verfahren zur Herstellung eines Reinraum- Reinigungstuchs besteht darin, daß Mehrkomponenten-Endlosfilamente aus der Schmelze ersponnen, aerodynamisch verstreckt und unmittelbar zu einem Vlies abgelegt werden, gegebenenfalls eine Vorverfestigung erfolgt und der Vliesstoff durch Hochdruck-Fluidstrahlen verfestigt wie gleichzeitig in Mikro- Endlosfilamente mit einem Titer von 0,1 bis 1,0 dtex vorzugsweise mit einem Titer von 0,1 bis 0,3 dtex gesplittet wird. Das so erhaltene Reinraum- Reinigungstuch ist sehr gleichmäßig hinsichtlich seiner Dicke, es weist eine isotrope Fadenverteilung auf, besitzt keine Neigung zum Delaminieren und ist durch hohe Modulwerte ausgezeichnet.The method according to the invention for producing a clean room Cleaning cloth is that multi-component filaments from the Melt spun, aerodynamically stretched and immediately to a fleece are stored, if necessary a pre-consolidation takes place and the nonwoven solidified by high pressure fluid jets as at the same time in micro  Continuous filaments with a titer of 0.1 to 1.0 dtex, preferably with a Titer from 0.1 to 0.3 dtex is split. The clean room thus obtained Cleaning cloth is very even in terms of its thickness, it has one isotropic thread distribution, has no tendency to delaminate and is distinguished by high module values.

Vorteilhafterweise wird das Verfahren zur Herstellung des Reinraum- Reinigungstuches in der Weise durchgeführt, daß die Verfestigung und Splittung der Mehrkomponenten-Endlosfilamente dadurch erfolgt, daß der Vliesstoff mehrfach mindestens einmal auf jeder Seite mit Hochdruck- Wasserstrahlen beaufschlagt wird. Das Reinraum-Reinigungstuch weist dadurch eine gute Oberfläche und einen Splittungsgrad der Mehrkomponenten- Endlosfilamente < 80% auf. Das erfindungsgemäße Reinraum-Reinigungstuch zeichnet sich überdies durch seine gute spezifische Wasseraufnahme und eine geringe Trockenzeit aus.Advantageously, the process for producing the clean room Cleaning cloth carried out in such a way that the solidification and Splitting of the multicomponent filaments takes place in that the Nonwoven fabric at least once on each side with high pressure Water jets is applied. The clean room cleaning cloth points thereby a good surface and a degree of splitting of the multi-component Continuous filaments <80%. The clean room cleaning cloth according to the invention is also characterized by its good specific water absorption and a low drying time.

Erfindungsgemäß ist das Reinraum-Reinigungstuch als Wisch- oder Staubtuch mehrfach einsetzbar.According to the invention, the clean room cleaning cloth is a wipe or dust cloth reusable.

Vorzugsweise genügt das Reinraum-Reinigungstuch den Ansprüchen industrieller Reinraumwaschbarkeit und kann für die Reinraumklasse 10 oder besser Anwendung finden. The clean room cleaning cloth preferably meets the requirements industrial clean room washability and can be used for clean room class 10 or find better application.  

Beispiel 1example 1

Aus einem Polyethylenterephthalat-Poly(hexamethylendiaminadipad) (PET- PA66)-Bikomponenten-Endlosfilament wird ein "Pie"-Filamentflor mit einem Flächengewicht von 57 g/m2 erzeugt und einer Wasserstrahlvernadelung mit Drücken bis 250 bar beidseitig unterzogen. Die Bikomponenten- Endlosfilamente weisen nach der Wasserstrahlvernadelung, die zu einer gleichzeitigen Splittung der Ausgangsfilamente führt, einen Titer von ca. 0,1 dtex auf.A "pie" filament pile with a basis weight of 57 g / m 2 is produced from a polyethylene terephthalate poly (hexamethylene diamine adipad) (PET-PA66) bicomponent filament and subjected to water jet needling at pressures of up to 250 bar on both sides. After the water jet needling, which leads to simultaneous splitting of the starting filaments, the bicomponent continuous filaments have a titer of approx. 0.1 dtex.

Beispiel 2Example 2

Aus einem Polyethylenterephthalat-Poly(hexamethylendiaminadipad) (PET- PA66)-Bikomponenten-Endlosfilament wird ein (s/s)-Filamentflor mit einem Flächengewicht von 65 g/m2 erzeugt und einer Wasserstrahlvernadelung mit Drücken bis 250 bar beidseitig unterzogen. Die Bikomponenten- Endlosfilamente weisen nach der Wasserstrahlvernadelung, die zu einer gleichzeitigen Splittung der Ausgangsfilamente führt, einen Titer von ca. 1,0 dtex auf.A (s / s) filament pile with a basis weight of 65 g / m 2 is produced from a polyethylene terephthalate poly (hexamethylene diamine adipad) (PET-PA66) bicomponent filament and subjected to water jet needling at pressures of up to 250 bar on both sides. The bicomponent continuous filaments have a titer of approx. 1.0 dtex after the water jet needling, which leads to a simultaneous splitting of the starting filaments.

Beispiel 3Example 3

Aus einem Polyethylenterephthalat-Poly(hexamethylendiaminadipad) (PET- PA66)-Bikomponenten-Endlosfilament mit einem Gewichtsverhältnis von PET zu PA66 von 60 zu 40 wird ein (s/s)-Filamentflor mit einem Flächengewicht von 80 g/m2 erzeugt und einer Wasserstrahlvernadelung mit Drücken bis 250 bar beidseitig unterzogen. Die Bikomponenten-Endlosfilamente weisen nach der Wasserstrahlvernadelung, die zu einer gleichzeitigen Splittung der Ausgangsfilamente führt, einen Titer von ca. 0,8 dtex und eine gekräuselte Filamentstruktur auf.A (s / s) filament pile with a basis weight of 80 g / m 2 is produced from a polyethylene terephthalate poly (hexamethylene diamine adipad) (PET-PA66) bicomponent filament with a weight ratio of PET to PA66 of 60 to 40 and water jet needling subjected to pressures up to 250 bar on both sides. After the water jet needling, which leads to simultaneous splitting of the starting filaments, the bicomponent continuous filaments have a titer of approximately 0.8 dtex and a crimped filament structure.

Beispiel 4Example 4

Aus einem Polyethylenterephthalat-Poly(caprolactam) (PET-PA6)- Bikomponenten-Endlosfilament wird ein (PIE)-Filamentflor mit einem Flächengewicht von 70 g/m2 erzeugt und einer Wasserstrahlvernadelung mit Drücken bis 250 bar beidseitig unterzogen. Die Bikomponenten- Endlosfilamente weisen nach der Wasserstrahlvernadelung, die zu einer gleichzeitigen Splittung der Ausgangsfilamente führt, einen Titer von ca. 0,1 dtex auf. A (PIE) filament pile with a basis weight of 70 g / m 2 is produced from a polyethylene terephthalate poly (caprolactam) (PET-PA6) bicomponent filament and subjected to water jet needling at pressures of up to 250 bar on both sides. After the water jet needling, which leads to simultaneous splitting of the starting filaments, the bicomponent continuous filaments have a titer of approx. 0.1 dtex.

Tabelle der Eigenschaften Table of properties

Claims (11)

1. Reinraum-Reinigungstuch bestehend aus einem Mikrofilament-Vliesstoff mit Flächengewichten von 30 bis 300 g/m2, wobei der Vliesstoff aus schmelzgesponnenen, aerodynamisch verstreckten und unmittelbar zu einem Vlies abgelegten Mehrkomponenten-Endlosfilamenten mit einem Titer von 1,5 bis 5 dtex besteht und die Mehrkomponenten- Endlosfilamente gegebenenfalls nach einer Vorverfestigung zumindest zu 80% zu Mikro-Endlosfilamenten mit einem Titer von 0,1 bis 1,0 dtex gesplittet und verfestigt sind.1. Clean room cleaning cloth consisting of a microfilament non-woven fabric with weights per unit area of 30 to 300 g / m 2 , the non-woven fabric consisting of melt-spun, aerodynamically stretched and immediately deposited multi-component filaments with a titer of 1.5 to 5 dtex and the multicomponent continuous filaments are optionally split and solidified at least 80% into micro continuous filaments with a titer of 0.1 to 1.0 dtex after pre-consolidation. 2. Reinraum-Reinigungstuch nach Anspruch 1, dadurch gekennzeichnet, daß der Vliesstoff aus schmelzgesponnenen, aerodynamisch verstreckten und unmittelbar zu einem Vlies abgelegten Mehrkomponenten-Endlosfilamenten mit einem Titer von 2 bis 3 dtex besteht und die Mehrkomponenten-Endlosfilamente gegebenenfalls nach einer Vorverfestigung zumindest zu 80% zu Mikro-Endlosfilamenten mit einem Titer von 0,1 bis 0,3 dtex gesplittet und verfestigt sind.2. Clean room cleaning cloth according to claim 1, characterized in that the nonwoven fabric is melt-spun, aerodynamically stretched and immediately deposited into a fleece Multi-component continuous filaments with a titer of 2 to 3 dtex exists and the multicomponent filaments optionally after pre-consolidation with at least 80% of micro continuous filaments a titer of 0.1 to 0.3 dtex are split and solidified. 3. Reinraum-Reinigungstuch nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Mehrkomponenten-Endlosfilament ein Bikomponenten-Endlosfilament aus zwei inkompatiblen Polymeren, insbesondere einem Polyester und einem Polyamid, ist.3. Clean room cleaning cloth according to claim 1 or 2, characterized characterized in that the multi-component continuous filament Continuous bicomponent filament made of two incompatible polymers, in particular a polyester and a polyamide. 4. Reinraum-Reinigungstuch nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Mehrkomponenten-Endlosfilamente einen Querschnitt mit orangenartiger Multisegment-Struktur aufweisen, wobei die Segmente alternierend jeweils eines der beiden inkompatiblen Polymeren enthalten und/oder eine "side-by-side"-Struktur besitzen. 4. Clean room cleaning cloth according to one of claims 1 to 3, characterized characterized in that the multi-component continuous filaments one Have cross-section with orange-like multi-segment structure, wherein the segments alternately one of the two incompatible ones Contain polymers and / or have a "side-by-side" structure.   5. Reinraum-Reinigungstuch nach Anspruch 3, dadurch gekennzeichnet, daß die beiden Seiten des Reinigungstuch eine unterschiedliche Segment-Struktur besitzen.5. Clean room cleaning cloth according to claim 3, characterized in that the two sides of the cleaning cloth are different Own segment structure. 6. Verfahren zur Herstellung von Reinraum-Reinigungstuch nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß Mehrkomponenten- Endlosfilamente aus der Schmelze ersponnen, aerodynamisch verstreckt und unmittelbar zu einem Vlies abgelegt werden, eine gegebenenfalls Vorverfestigung erfolgt und der Vliesstoff durch Hochdruck-Fluidstrahlen verfestigt sowie gleichzeitig in Mikro-Endlosfilamente mit einem Titer von 0,1 bis 1,0 dtex gesplittet wird.6. Process for the production of clean room cleaning cloth according to one of the Claims 1 to 5, characterized in that multi-component Continuous filaments spun from the melt, aerodynamically stretched and deposited directly into a fleece, one if necessary Pre-consolidation takes place and the nonwoven fabric by high pressure fluid jets solidified and at the same time in micro continuous filaments with a titer of 0.1 to 1.0 dtex is split. 7. Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß die Verfestigung und Splittung der Mehrkomponenten-Endlosfilamente dadurch erfolgt, daß der Vliesstoff mindestens einmal von jeder Seiten mit Hochdruck-Fluidstrahlen beaufschlagt wird.7. The method according to claim 6, characterized in that the Solidification and splitting of the multi-component continuous filaments in that the nonwoven fabric at least once from each side is subjected to high pressure fluid jets. 8. Verfahren nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß die Färbung der Mehrkomponenten-Endlosfilamente durch Spinnfärben vorgenommen wird.8. The method according to claim 6 or 7, characterized in that the Coloring the multi-component continuous filaments by spin dyeing is made. 9. Verfahren nach Anspruch 5 und 6, dadurch gekennzeichnet, daß zwei Spinnbalken eingesetzt werden, von denen einer Mehrkomponenten- Endlosfilamente mit einer "Pie"-Segmentstruktur und der andere mit einer "side-by-side"-Segmentstruktur erzeugt.9. The method according to claim 5 and 6, characterized in that two Spinning beams are used, one of which is multi-component Continuous filaments with a "pie" segment structure and the other with one "Side-by-side" segment structure created. 10. Verwendung eines Reinraum-Reinigungstuchs nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß es als Wisch- oder Staubtücher mehrfach einsetzbar ist. 10. Use a clean room cleaning cloth according to one of the Claims 1 to 9, characterized in that it as a wiping or Dusters can be used multiple times.   11. Verwendung eines Reinraum-Reinigungstuchs nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß es den Ansprüchen industrieller Reinraumwaschbarkeit genügt und für die Reinraumklasse 10 oder besser Anwendung finden kann.11. Use a clean room cleaning cloth according to one of the Claims 1 to 9, characterized in that it meets the claims industrial cleanroom washability is sufficient and for the cleanroom class 10 or better can be used.
DE19957693A 1999-11-30 1999-11-30 Cleanroom Cleaning Cloth Expired - Fee Related DE19957693C2 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
DE19957693A DE19957693C2 (en) 1999-11-30 1999-11-30 Cleanroom Cleaning Cloth
EP00989869A EP1234066B1 (en) 1999-11-30 2000-11-21 Clean-room cleaning cloth
ES00989869T ES2226974T3 (en) 1999-11-30 2000-11-21 CLEANING CLOTH FOR CLEAN ENCLOSURES.
AU26672/01A AU2667201A (en) 1999-11-30 2000-11-21 Clean-room cleaning cloth
DE50008157T DE50008157D1 (en) 1999-11-30 2000-11-21 CLEAN ROOM CLEANING CLOTH
CNB008164746A CN1158044C (en) 1999-11-30 2000-11-21 Clean-room cleaning cloth
JP2001542621A JP2003515407A (en) 1999-11-30 2000-11-21 Cleaning cloth for clean room
KR10-2002-7006922A KR100491846B1 (en) 1999-11-30 2000-11-21 Clean-room cleaning cloth and a method for producing it
AT00989869T ATE278827T1 (en) 1999-11-30 2000-11-21 CLEANROOM CLEANING CLOTH
PCT/EP2000/011584 WO2001040558A2 (en) 1999-11-30 2000-11-21 Clean-room cleaning cloth

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DE19957693A DE19957693C2 (en) 1999-11-30 1999-11-30 Cleanroom Cleaning Cloth

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JP (1) JP2003515407A (en)
KR (1) KR100491846B1 (en)
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AT (1) ATE278827T1 (en)
AU (1) AU2667201A (en)
DE (2) DE19957693C2 (en)
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CN1402621A (en) 2003-03-12
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EP1234066A2 (en) 2002-08-28
WO2001040558A3 (en) 2001-10-25
AU2667201A (en) 2001-06-12
KR20020054358A (en) 2002-07-06
KR100491846B1 (en) 2005-05-27
CN1158044C (en) 2004-07-21
ES2226974T3 (en) 2005-04-01
WO2001040558A2 (en) 2001-06-07
JP2003515407A (en) 2003-05-07
ATE278827T1 (en) 2004-10-15
EP1234066B1 (en) 2004-10-06

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