EP0531961A1 - Chiffon à base de polyoléfines - Google Patents

Chiffon à base de polyoléfines Download PDF

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Publication number
EP0531961A1
EP0531961A1 EP92115404A EP92115404A EP0531961A1 EP 0531961 A1 EP0531961 A1 EP 0531961A1 EP 92115404 A EP92115404 A EP 92115404A EP 92115404 A EP92115404 A EP 92115404A EP 0531961 A1 EP0531961 A1 EP 0531961A1
Authority
EP
European Patent Office
Prior art keywords
nonwoven web
wiping
microfibers
cleaning cloth
cloth according
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.)
Ceased
Application number
EP92115404A
Other languages
German (de)
English (en)
Inventor
Peter Wirz
Ulrich Kremer
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.)
GIZEH SPUNTEC VLIESSTOFFE GMBH
Original Assignee
Gizeh Spuntec Vliesstoffe GmbH
Silver Plastics GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19914130006 external-priority patent/DE4130006A1/de
Priority claimed from DE19924201055 external-priority patent/DE4201055A1/de
Application filed by Gizeh Spuntec Vliesstoffe GmbH, Silver Plastics GmbH and Co KG filed Critical Gizeh Spuntec Vliesstoffe GmbH
Publication of EP0531961A1 publication Critical patent/EP0531961A1/fr
Ceased legal-status Critical Current

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Classifications

    • 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
    • A47L13/17—Cloths; Pads; Sponges containing cleaning agents

Definitions

  • the invention relates to a wipe and cleaning cloth for household and industry for holding solid particles and / or liquids of all kinds, made from a nonwoven web containing melt-blown thermoplastic materials, in particular polyolefins, microfibers and optionally surfactants, the nonwoven web being exemplary is solidified in partial areas.
  • Wipes made from nonwoven nonwovens are known, for example, from DE-PS 28 45 551 or DE-GM 76 08 660, EP-OS 0259692 or DE-OS 34 11 515, among others.
  • the basic suitability of nonwovens made of thermoplastic fibers, which are partially solidified by hot stamping, for example by means of embossing rollers for use as wipers with and without wetting agents, is already described in US Pat. No. 3,849,241 or US Pat. No. 3,978,185 or US Pat. No. 3,811 957 described in general terms. From this it is also known to make hydrophobic thermoplastic fibers inherently wettable by adding wetting agents. The manufacturing processes for nonwoven nonwoven webs are also described, for example, in US Pat. Nos. 3,795,571 and 3,704,198.
  • a large number of the known wipes are for selected applications for picking up selected dirt equipped, for example as a duster, as a washcloth, as an oil wiper or as a steel cleaning cloth or the like.
  • the dirt does not only appear in one form but mixed in all variants, namely as a mixture of dust, fats, water, food residues, liquids of all kinds, etc.
  • the invention has for its object to provide a wipe and cleaning cloth based on polyolefins for household and industry for picking up all kinds of dirt, which absorbs the dirt with as little lubrication as possible, has an antistatic and disinfectant effect and is inexpensive to produce.
  • Preferred polyolefin according to the invention is LLDPE, which has good strength and toughness, so that wipes made therefrom have good grip and softness, have good abrasion resistance and are still sufficiently lint-proof.
  • surfactants are preferably added, with the surfactants acting as antistatic agents or as disinfectants being the preferred ones.
  • the proportion of surfactants added depends on the surfactant selected and the desired effect.
  • Abrasion resistance and tear resistance are achieved to a sufficient extent by selected polyolefins in accordance with the characterizing features of claims 5 to 6.
  • the wiping and Cleaning cloth when equipped with higher basis weights of more than 100 to 200 g / m2 is not as stiff as the wipers made of a fleece made only of polypropylene fibers due to the LLDPE used.
  • surfactants can improve the wettability, the disinfectant and the antistatic properties of the wipe and cleaning cloth.
  • Surfactants are low- to medium-molecular amphiphilic surface-active compounds which contain at least one hydrocarbon radical with 8 to 20 carbon atoms as the hydrophobic part of the molecule and charged or uncharged polar groups as the hydrophilic part of the molecule.
  • cationic surfactants are preferred because of their disinfectant action, and anionic, nonionic or amphoteric surfactants are also used, alone or in mixtures with cationic surfactants.
  • the surfactants are preferably applied to the surface of the fibers or nonwoven web, for example in the manufacturing process of the nonwoven web either directly by spraying onto the fibers or by soaking the nonwoven web.
  • the anionic surfactants which can be used for the invention have negatively charged hydrophilic groups, such as carboxy, sulfonate, sulfate, phosphonate and phosphate groups. Soaps, alkylbenzenesulfonates, alkyl ether sulfates, alkanesulfonates and alkyl sulfates as well as lignin and petroleum sulfonates can be used. According to a preferred embodiment of the invention, a mixture of anionic surfactants based on fatty acid polyglycol esters and fatty alcohol phosphates is used. This not only improves the wettability of the wiping and cleaning cloth, but also prevents the wiping and cleaning cloth from becoming antistatically charged.
  • hydrophilic groups such as carboxy, sulfonate, sulfate, phosphonate and phosphate groups. Soaps, alkylbenzenesulfonates, alkyl ether sulfates, alkane
  • the nonionic surfactants used according to the invention have as a hydrophilic part of the molecule ether groups, especially oxoethylene groups, amine-N-oxide or sulfoxide functions.
  • Alkylphenol ethoxylates, fatty alcohol ethoxylates and fatty acid alkanolamides as well as ethene oxide-propene oxide block co-oligomers and long-chain amine N-oxides can be used.
  • a surfactant based on fatty alcohol ethoxylates is used as the nonionic surfactant.
  • amphoteric surfactants can also be used. These contain at least one zwitterionic group in one molecule, the carbo- and sulfobetaines each having an ammonium and a carboxy or sulfonic acid group and at least one hydrophobic part of the molecule being particularly important. Such surfactants are also predominantly biodegradable.
  • polyolefin fibers are oleophilic by default, depending on the desired degree of water wettability and antistatic activity, a corresponding proportion of surfactants, i.e. Provide wetting agents. It is also possible to equip the wiping and cleaning cloth according to the invention with an additional surfactant in such a way that the surfactant is added to one of the thermoplastics, in particular the LLDPE from which the fibers are produced, in accordance with the characterizing features of claim 7. The surfactant later becomes effective when the wipe is used by migration to the surface of the fibers.
  • these wetting agents which act as internal surfactants can also provide cationic surfactants.
  • a preferred embodiment provides surfactants based on fatty alcohol ethoxylates, especially those with an additional antistatic effect. Polyolefins with incorporated surfactants are described, for example, in US Pat. No. 4,578,414.
  • a wiping and cleaning cloth with a good cleaning effect and disinfection is obtained using a nonwoven web with predominantly fibers from an LLDPE (linear low density polyethylene) and fibers made from a homopolymer of propylene and a cationic surfactant acting as a disinfectant in an amount of at least 1.0% by weight, based on the nonwoven web.
  • LLDPE linear low density polyethylene
  • the use of a mixture of fibers based on polyethylene and on the basis of polypropylene with a predominant proportion of polyethylene creates a very handy soft wipe that not only absorbs well on flat surfaces, but is also easy to insert into corners and holes.
  • 10 min are preferred as polypropylenes.
  • the microfibers used according to the invention, also referred to as fibers, are preferably smaller than 12 ⁇ , particularly less than 9 ⁇ , by known meltblowing processes. Surprisingly, it was found that the use of cationic surfactants not only improves the wettability of the wiping and cleaning cloth, but at the same time also achieves a disinfectant effect which the wiping and cleaning cloth retains in the long term.
  • the cationic surfactant is preferably applied to the surface of the fibers or nonwoven web, for example in the manufacturing process of the nonwoven web either directly by spraying onto the fibers or by soaking the nonwoven web.
  • the cationic surfactants which can be used for the invention have positively charged hydrophilic groups, in particular ammonium groups, but cationic surfactants with phosphonium or protonated amine N-oxide groups can also be used. Quaternary ammonium compounds with a long-chain alkyl radical, which also have a disinfectant effect, have proven to be particularly advantageous. However, it is also possible to use quaternary ammonium salts with two long-chain alkyl radicals which have a higher wetting action.
  • Quaternary ammonium salts which have surfactant properties are preferably used as cationic surfactants. Such connections are also referred to as invert soaps. These compounds are at the N atom usually three methyl groups or two methyl groups and a benzyl radical and a longer-chain aliphatic radical. The positively charged N atom with the methyl residues forms the hydrophilic, the longer-chain alkyl residue the hydrophobic part of the molecule. The N atom can also be part of a ring or replaced by a positively charged phosphorus atom. Mixtures with alkyl chains of different lengths can also be provided. Other structural elements, such as carboxylic acid ester groups, can also be incorporated in the hydrophobic residue.
  • invert soaps have a broad spectrum of antibacterial activity, which has proven to be particularly advantageous in the case of wiping and cleaning wipes, since these are used successively in a variety of places in the household, and thus at least partially with the wiping and cleaning wipe of the invention to transmit bacteria can be counteracted.
  • the wiping and cleaning cloths it is desirable that they have a particularly fluffy and voluminous shape.
  • the nonwoven web in which the fibers are solidified in parts by plasticizing and pressing together and in this way the nonwoven is given its compact and durable structure, the fleecy character of the nonwoven is reduced at the same time by calendering and embossing.
  • an addition of sodium carboxymethyl cellulose according to the characterizing features of claim ica is provided in the nonwoven web.
  • the nonwoven webs and thus the wiping cloths are preferably colored, whereby they can not only be printed, but also plain-colored, for example by adding suitable suitable colorants in customary amounts to the thermoplastic materials for the production of the fibers.
  • thermoplastic fibers of higher temperature resistance for example based on appropriate thermoplastic polyesters or linear polyaryl oxides, sulfides, sulfones, these fibers Higher temperature resistance up to 49% by weight, preferably up to 30% by weight, based on the total amount of fibers in the nonwoven web.
  • Mixtures of fibers made from LLDPE, polypropylene and high-temperature-resistant thermoplastic materials are also possible. As a result, the area of application of the wipers made from them is expanded as a result of higher heat resistance. Suitable high-temperature resistant plastics can be found in the characterizing part of claim 10.
  • Wipes made from a nonwoven web of meltblown microfibers with an average diameter of up to about 12 microns were made by meltblowing, for example using the process described in US Pat. No. 3,978,185 60% by weight fibers from LLDPE and 40% by weight fibers from a homopolymer of polypropylene.
  • thermoplastic polymers are extruded into filaments in separate extruders in air streams, then the filaments are drawn into fine fibers and comminuted by blowing, the fibers made of polypropylene being added to the air stream of the fibers made of LLDPE and when they meet, the turbulence generated by air streams ensures uniform mixing the fibers are made of LLDPE and polypropylene and this mixture is placed on a base to form a loose, non-woven fiber fleece and subsequently joined and embossed as it passes through calender rolls using pressure and heat.
  • polyethylene fibers For the polyethylene fibers, an LLDPE with a density of 0.945 g / cm3 and an MFI (190 / 2.16) of 25 g / 10 min was used, which is available, for example, as a commercial product from the Dow Chemical Company.
  • the polypropylene resin was an ultra-high-melt homopolymer of polypropylene with a melt flow rate, measured according to ASTM method D 1238 Condition L, of 400 dg / min, which corresponds to an MFI (230 / 2.16) of 400 g / 10 min, and a density of 0.9 g / cm3 used.
  • a fleece with a basis weight of 75 g / m2 was made from the thermoplastic fibers.
  • Example 1 the random fiber fleece was made from the loosely collected thermoplastic fibers prior to hot stamping with an anionic surfactant with antistatic effect suitable for the finishing of staple fibers, such as, for example, the agent available from Henkel under the trade name "BK 2105 (R)" , sprayed.
  • an anionic surfactant with antistatic effect suitable for the finishing of staple fibers, such as, for example, the agent available from Henkel under the trade name "BK 2105 (R)" , sprayed.
  • the surface of the nonwoven web is loaded with about 2% by weight, based on the weight of the nonwoven web, of surfactant.
  • the surfactants were applied from an aqueous 2% solution.
  • the nonwoven web is then hot stamped. It is also possible to subsequently spray an embossed nonwoven web with surfactant or to apply the surfactant from aqueous solutions, for example in an immersion bath or by application rollers.
  • the anionic surfactant "BK 2105 (R)” deals it is a mixture based on fatty acid polyglycol esters and fatty alcohol phosphates, which also act as antistatic agents.
  • the wipes and cleaning cloths which are made up from the nonwoven web in the usual sizes, wipe tables, floors, surfaces that are dirty and also contain greases, depending on the application in the household, cleanly and are also wettable with water and hold liquids.
  • the random-fiber fleece produced for the first exemplary embodiment and having a weight per unit area of 75 g / m 2 was sprayed with cationic surfactant "Zephirol (R)" from Bayer AG before hot stamping, so that the nonwoven web was covered by about 2% by weight on the weight of the nonwoven web, which contains surfactant on the surface.
  • the surfactant was applied from an aqueous 2% solution.
  • the nonwoven web is then hot stamped. It is also possible to subsequently spray an embossed nonwoven web with surfactant or to apply the surfactant from aqueous solutions, for example in an immersion bath or by application rollers. The solvent is then evaporated off.
  • the cationic surfactant "Zephirol (R)” is a quaternary ammonium compound based on alkylbenzyldimethylammonium chloride.
  • a random-fiber fleece was produced 100% from fibers from the LLDPE as in exemplary embodiment 1.
  • a fleece with a basis weight of 75 g / m2 was produced from the LLDPE fibers, the random fiber fleece from the loosely collected thermoplastic fibers being sprayed with the nonionic and APEO-free surfactant "Diadavin NSE (R)" from Bayer AG before hot stamping was so that the nonwoven web contains about 2.2% by weight, based on the weight of the nonwoven web, of surfactant.
  • the surfactant was applied from a 2% aqueous solution.
  • the nonwoven web is then hot stamped.
  • it is also possible here to spray an embossed nonwoven web with surfactant or the surfactant from aqueous solutions for example in an immersion bath or by application rollers to apply. The solvent is then evaporated off.
  • a wipe was produced according to Example 4, in which a random fiber fleece according to Example 1 is produced which contains 55% by weight melt-blown microfibers made from an LLDPE according to Example 1, 30% by weight melt-blown microfibers made from polypropylene according to Example 1 and Contains 15 wt .-% melt-blown microfibers made of polyphenylene sulfide.
  • the random fiber fleece was optionally pre-consolidated, for example by means of rollers, and sprayed with an aqueous 2.5% surfactant mixture of equal proportions BK 2105 and zephirol according to the preceding examples and then hot stamped by means of embossing rollers and consolidated with a binding pattern according to FIG. 1.
  • the wiping cloths are made up in the desired size from the nonwoven web thus obtained.
  • a surfactant of polyoxyethylene laurate was already incorporated into the LLDPE to be processed into the microfibers, and further surfactant on the tangled nonwoven fabric before hot stamping with an aqueous solution, 1.5%, sprayed with Zephirol.
  • the wipe obtained from the hot-stamped nonwoven web shows an increased service life in terms of clean wiping and wettability due to the depot effect of the surfactant in the LLDPE.

Landscapes

  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
EP92115404A 1991-09-10 1992-09-09 Chiffon à base de polyoléfines Ceased EP0531961A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19914130006 DE4130006A1 (de) 1991-09-10 1991-09-10 Wisch- und putztuch
DE4130006 1991-09-10
DE19924201055 DE4201055A1 (de) 1992-01-17 1992-01-17 Wisch- und putztuch auf basis von polyolefinen
DE4201055 1992-01-17

Publications (1)

Publication Number Publication Date
EP0531961A1 true EP0531961A1 (fr) 1993-03-17

Family

ID=25907153

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92115404A Ceased EP0531961A1 (fr) 1991-09-10 1992-09-09 Chiffon à base de polyoléfines

Country Status (2)

Country Link
EP (1) EP0531961A1 (fr)
FR (1) FR2680963A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001030128A1 (fr) * 1999-10-26 2001-05-03 The Dow Chemical Company Article de sequestration de salissures
WO2001040558A2 (fr) * 1999-11-30 2001-06-07 Carl Freudenberg Kg Chiffon de nettoyage pour salle blanche
WO2004047606A1 (fr) * 2002-11-25 2004-06-10 Unilever Plc Article d'essuyage
DE10361066A1 (de) * 2003-12-22 2005-07-14 Carl Freudenberg Kg Reinigungstuch
US7229956B2 (en) 2000-09-25 2007-06-12 Reckitt Benckiser (Uk) Limited Anti-static cleaning wipes
EP1084226B2 (fr) † 1998-05-30 2013-07-24 Kimberly-Clark Worldwide, Inc. Materiau sorbant

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4307143A (en) * 1977-10-17 1981-12-22 Kimberly-Clark Corporation Microfiber oil and water pipe
EP0047797A2 (fr) * 1980-09-15 1982-03-24 Firma Carl Freudenberg Tissu de nettoyage
GB2151272A (en) * 1981-11-24 1985-07-17 Kimberly Clark Ltd Absorbent microfibre web
EP0152883A2 (fr) * 1984-02-17 1985-08-28 The Dow Chemical Company Fibres mouillables en polyoléfine et produits les contenant
EP0239080A2 (fr) * 1986-03-24 1987-09-30 Kimberly-Clark Corporation Fibres élastomères, nappes fibreuses élastomères, nappes composites élastomères et composition apte à l'extrusion à base de copolymères d'éthylène-vinyle
WO1990005771A1 (fr) * 1988-11-15 1990-05-31 Sheridan Christopher H Chiffon de nettoyage sensiblement sec

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2768461B2 (ja) * 1987-05-30 1998-06-25 ユニチカ株式会社 ポリエチレンとポリプロピレンのブレンド構造体からなる繊維及びその繊維を用いた不織布

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4307143A (en) * 1977-10-17 1981-12-22 Kimberly-Clark Corporation Microfiber oil and water pipe
EP0047797A2 (fr) * 1980-09-15 1982-03-24 Firma Carl Freudenberg Tissu de nettoyage
GB2151272A (en) * 1981-11-24 1985-07-17 Kimberly Clark Ltd Absorbent microfibre web
EP0152883A2 (fr) * 1984-02-17 1985-08-28 The Dow Chemical Company Fibres mouillables en polyoléfine et produits les contenant
EP0239080A2 (fr) * 1986-03-24 1987-09-30 Kimberly-Clark Corporation Fibres élastomères, nappes fibreuses élastomères, nappes composites élastomères et composition apte à l'extrusion à base de copolymères d'éthylène-vinyle
WO1990005771A1 (fr) * 1988-11-15 1990-05-31 Sheridan Christopher H Chiffon de nettoyage sensiblement sec

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 13, no. 137 (C-582)9. Dezember 1988 & JP-A-63 303 109 ( UNITIKA LTD ) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1084226B2 (fr) † 1998-05-30 2013-07-24 Kimberly-Clark Worldwide, Inc. Materiau sorbant
WO2001030128A1 (fr) * 1999-10-26 2001-05-03 The Dow Chemical Company Article de sequestration de salissures
WO2001040558A2 (fr) * 1999-11-30 2001-06-07 Carl Freudenberg Kg Chiffon de nettoyage pour salle blanche
WO2001040558A3 (fr) * 1999-11-30 2001-10-25 Freudenberg Carl Fa Chiffon de nettoyage pour salle blanche
US7229956B2 (en) 2000-09-25 2007-06-12 Reckitt Benckiser (Uk) Limited Anti-static cleaning wipes
WO2004047606A1 (fr) * 2002-11-25 2004-06-10 Unilever Plc Article d'essuyage
DE10361066A1 (de) * 2003-12-22 2005-07-14 Carl Freudenberg Kg Reinigungstuch

Also Published As

Publication number Publication date
FR2680963A1 (fr) 1993-03-12

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