Use of a non-woven fabric having a surface covered with microfiber for the preparation of cleaning devices

Abstract

There is described the use as textile material to produce cleaning devices of a “double-layer” non-woven fabric having a microfiber layer supported by a macrofiber layer wherein the layers are bonded by needle-punching and subsequent treatment of the microfiber surface with high pressure water jets.

1 . Method of producing from a textile material cleaning devices and/or medical textiles of a “double layer” non-woven fabric comprising a microfiber cleaning layer and a macrofiber supporting layer, said fabric being obtained by carrying out a first step of needle-punching of a mat formed by at least one layer of carded web of macrofibers and at least one layer of carded web of microfibers, and a subsequent step of treating the needle-punched mat with high pressure water jets, said needle-punching and treatment being performed from the same side on the free surface of the microfiber layer . 
     
     
         2 . The method according to  claim 1 , wherein the unit weight of the microfiber is equal to or less than 100 g/m 2 , preferably 70 g/m 2 , more preferably 40-70 g/m 2 . 
     
     
         3 . The method according to  claim 1 , wherein the surface of the microfiber layer comprises longitudinal bonding lines alternated with embossments or micro-embossments. 
     
     
         4 . The method according to  claim 1 , wherein the free surface of the macrofiber layer is coated with resins, preferably acrylic resins. 
     
     
         5 . The method according to  claim 1 , wherein the fibers of the macrofiber layer are made of viscose, polypropylene, nylon, rayon, cellulose, mixed viscose and polyester, cotton and the like, preferably formed by 70% of viscose and 30% of polyester, or by a 50/50 mixture of viscose/polyester; or they are formed by regenerated or recycled materials, for example 100% recycled PET, a mixture of 70% regenerated cellulose fibres and 30% recycled PET fibres. 
     
     
         6 . The method according to  claim 1 , wherein the microfibers are splittable fibres constituted by polyester/polyamide. 
     
     
         7 . The method according to  claim 1 , wherein the basis weight of macrofiber layer ranges from 100 g/m 2  to 400 g/m 2 , preferably comprised between 180 and 280 g/m 2 , more preferably comprised between 200 and 250 g/m 2 . 
     
     
         8 . Material in double-layer non-woven fabric as defined in  claim 1  having one of surfaces thereof covered with a microfiber layer. 
     
     
         9 . Cleaning devices and/or medical textiles comprising at least one textile material as defined in  claim 8 , preferably in form of mops, conventional floor cloths, cloths for glass and for any other type of surface, sponges, dry and/or moistened cloths for cleaning, or cloths for use in the medical sector where fabrics with different densities and compositions are required, an in all those applications in which the efficacy of microfiber is required.