Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B24—GRINDING; POLISHING
  • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
  • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
  • B24D3/001—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as supporting member
  • B24D3/002—Flexible supporting members, e.g. paper, woven, plastic materials
  • B24D3/004—Flexible supporting members, e.g. paper, woven, plastic materials with special coatings
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B24—GRINDING; POLISHING
  • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
  • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B24—GRINDING; POLISHING
  • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
  • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
  • B24D11/02—Backings, e.g. foils, webs, mesh fabrics

Definitions

• the invention relates to a cleaning article comprising a base body consisting of a base of regenerated cellulose reinforced with cotton fibers.
• Such cleaning articles are known from DE 103 39 113 A1.
• the previously known cleaning articles are produced by the cellulose xanthate method. To produce cotton fibers are wetted with alkali and kneaded with viscose. Then Glauber's salt and colorants are added as needed and the mixture is then kneaded. The mass is then layered on a perforated steel strip and passed through a bath containing hot caustic soda. By treatment with dilute sulfuric acid and various washing baths, the lye is removed again. The cleaning article thus obtained is dried and formulated.
• Cleaning articles made by such process are also referred to as sponge cloths. They are characterized by having a high water absorption capacity, which can be up to 15 times their own weight.
• the invention has for its object to improve the cleaning performance of the cleaning article described above against firmly adhering dirt.
• the base body is provided at least on one side with an abrasive layer.
• the abrasive layer improves the cleaning performance of the cleaning article against firmly adhering soiling.
• the firmly adhering dirt is released by the abrasive layer from the surface to be cleaned and is taken up in the cleaning liquid, which is bound in the cleaning article, and thereby removed from the surface to be cleaned. Due to the large amount of water that can be absorbed by the cellulose-based cleaning article, a gentle cleaning even of sensitive surfaces.
• the abrasive layer may be made to be water-permeable, so that the water absorbed in the cleaning article can pass through the abrasive layer onto the surface to be cleaned.
• the abrasive layer may consist of a binder and scouring particles. In principle, it is difficult to attach scouring particles to a cellulose-based base body, since the cellulose, for example, can not be locally melted to improve adhesion. By contrast, the scouring particles are firmly bound by a binder.
• binders are based on phenol resin, acrylate-based or consist of a mixture of phenol and acrylate. Such binders are present in an aqueous solution, which partially penetrates into the body, causing a local swelling of the cellulose and firmly anchored after curing on the cellulose fibers.
• binders may consist of latex, melamine resin, nitrile rubber or polyurethane or of mixtures of the abovementioned.
• the scouring particles can be formed by mineral and / or organic scouring particles.
• a mineral abrasives for example, quartz, silicon carbide, aluminum oxide, corundum, glass.
• Other conceivable abrasives consist of lime, chalk, silica, nut shells or plastic granules based on polyurethane, polymethyl acrylate, polyacrylate, polycarbonate or rubber.
• Polyacrylate is particularly suitable for the abrasive cleaning of sensitive surfaces.
• the abrasive layer may comprise a thickener.
• the thickener prevents the liquid constituents of the abrasive layer from penetrating into the base body too quickly when applied to the base body due to its high water absorption capacity and before hardening.
• Thickeners which give thixotropic properties to the solution on which the abrasive layer is based are particularly advantageous. Such thixotropic properties can be processed particularly advantageously in the spray process.
• the solution is liquid by the action of shear forces in the spray apparatus and solidifies immediately after emergence, so that the solution has a high viscosity when hitting the base body which limits the penetration depth of the solution. As a result, an abrasive layer having a significant thickness can be achieved become.
• Methacrylic acid-based thickeners have such advantageous thixotropic properties.
• a base body consisting of a base of regenerated cellulose reinforced with cotton fibers is provided and provided with an abrasive layer.
• the abrasive layer can be sprayed on or printed on.
• the spraying is particularly easy to integrate into the manufacturing process and it is a high area performance possible.
• Application rates of the abrasive layer of 200 to 300 g / m 2 are conceivable.
• a printing paste is provided which contains a binder and a thickener, wherein the thickener is dosed in accordance with the printing process.
• the abrasives are evenly distributed in the printing paste. It is also possible to provide a printing paste without abrasives. These first print on the surface of the body and then spread on the wet printing paste abrasives, which are thus mainly bound to the surface of the printing paste.
• FIG. 1 shows a cleaning article according to the invention in a side view
• FIG. 1 shows a cleaning article 1, which consists of a base body 2.
• This basic body 2 in turn consists of a base of regenerated cellulose reinforced with cotton fibers.
• the main body is provided on one side 4 over its entire surface with an abrasive layer 3.
• the abrasive layer 3 consists of a binder 5 based on phenolic resin or acrylate provided with abrasives 6 based on glass particles or polyacrylate.
• a base body 2 consisting of a base of regenerated cellulose reinforced with cotton fibers is provided and provided with an abrasive layer 3.
• the abrasive layer 3 can be applied to the base body 2 by means of spraying or printing.
• the application of the abrasive layer 3 preferably takes place by means of spraying, the solution forming the abrasive layer 3 comprising a thickener based on methacrylate, so that the solution is thixotropic

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=40380570

Family Applications (1)

Country Status (3)

Families Citing this family (1)

Citations (4)

Family Cites Families (2)

• 2007
  • 2007-10-23 DE DE102007050902A patent/DE102007050902A1/de not_active Withdrawn
• 2008
  • 2008-10-20 WO PCT/EP2008/008857 patent/WO2009053013A1/de active Application Filing
  • 2008-10-20 EP EP08841998.1A patent/EP2219820B1/de active Active

Patent Citations (4)

Also Published As

Similar Documents

Legal Events