Classifications

• • 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)
• • 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
• • 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
• • 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
• • 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

Definitions

• 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.
• a multi-stage production process is described, which essentially comprises the two 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 the subsequent drying with vulcanizing, washing out the pore formers contained in the coating and drying again.
• 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 restored. 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.
• 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.
• printability i.e. the absorption capacity for printing inks.
• 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.
• the solution to this problem consists in the provision of cleaning cloths made of nonwoven according to claim 1. These microfibers are present in amounts of 20-100% by weight, based on the solid rubber weight of the coating.
• cellulose microfibers used here includes mechanically comminuted cellulose with fiber lengths of 15-200 »m, preferably up to 60» m. These fibers are made from natural pulp and are commercially available.
• 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 context of this invention, bactericidal auxiliaries are avoided in order not to impair the good biodegradability or compostability and rotability of the cellulose.
• the cleaning cloth according to the invention would be biodegradable or compostable despite the high content of rubber, which is very difficult to attack by microorganisms.
• cellulose microfibers also referred to in the literature as "cellulose powder” or “powder cellulose"
• the degradability is facilitated.
• 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.
• the cellulose fibers 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 nutrient medium and the space for the settlement of bacteria and from where the intensified, decomposing attack on the surrounding rubber takes place.
• the surface of a cleaning cloth equipped according to the invention is far less sticky than without the addition of cellulose microfibers.
• the usual powdering of the surface with talc which was previously necessary to improve the sliding properties, is then largely or completely eliminated.
• the higher lubricity results in less resistance when wiping, especially when the cloth is wet; so a noticeably less effort is required.
• 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.
• the improvement in color fastness is significant, in particular in comparison with the coatings provided with talc, in which the printing ink sits partly on the talc instead of on the actual cloth.
• 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.
• 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.
• 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 as well as 30% by weight, based on the solid rubber weight, of the coating.
• 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 as well as 30% by weight, based on the solid rubber weight, of the coating.
• 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 as well as 30% by weight, based on the solid rubber weight, of the
• the cloth material After being cut 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.
• the cleaning wipe thus produced is characterized by advantageous properties:
• the wiping force expressed in N / 500 cm2, also drops when cellulose microfibers are used in the rubber coating, compared to wiping surfaces of the prior art: without cellulose with cellulose Window cloth (240 g / m2) 18th 8th Car towel (280 g / m2) 22 10th
• a random fiber fleece 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.
• 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.
• the advantage of this design variant is that the base material is completely free of bactericidal chemicals, not just the rubber coating.
• 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.
• 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 .

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)

Applications Claiming Priority (2)

Publications (2)

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ID=6452402

Family Applications (1)

Country Status (7)

Cited By (1)

Families Citing this family (7)

Citations (1)

Family Cites Families (15)

• 1992
  • 1992-02-24 DE DE4205547A patent/DE4205547C1/de not_active Expired - Fee Related
  • 1992-09-17 AT AT92115867T patent/ATE127176T1/de active
  • 1992-09-17 ES ES92115867T patent/ES2077316T3/es not_active Expired - Lifetime
  • 1992-09-17 EP EP92115867A patent/EP0557577B1/de not_active Expired - Lifetime
  • 1992-09-17 DK DK92115867.1T patent/DK0557577T3/da active
  • 1992-09-17 DE DE59203474T patent/DE59203474D1/de 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/el unknown

Patent Citations (1)

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