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OwnerMagnus Falk, Anna Manssoninventors
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A method for providing a wire for forming a patterned fiber web, a wire which has been provided by means of the method according to the invention and a patterned fiber web formed on the wire (100) according to the invention, which comprises a plurality of threads (101, 102, 103, 104, 105, 106) arranged in a wire structure with a plurality of drainage opening (107, 108, 109) and a patterning area (110) substantially in the plane of the wire, intended for the forming. In the method a number of the threads (103, 104, 105) are given a permanent deformation for forming one or several pattern creating surfaces (111) within the patterning area (110) at the forming. The invention may be applied in relation to production of soft tissue paper, wet pressed non woven materials, air laid non woven materials, or at the production of hydraulically patterned or entangled non woven materials. The patterned fiber webs may be converted to toilet paper, paper towels, household paper, facial tissues, napkins, wet napkins, handkerchiefs, dry towels for infants, flannels, wipes for industrial cleaning and the like. The fiber web or the webs may also be converted to or be a part of other sanitary articles, such as nappies, sanitary napkins, panty liners and incontinence guards.
A method for providing a wire for forming a patterned fibre web, said wire (100) comprising a plurality of threads (101, 102, 103, 104, 105, 106) arranged in a wire structure with a plurality of drainage openings (107, 108, 109) and a patterning area (110) substantially in the plane of the wire, intended for the forming, wherein a number of the threads (103, 104, 105) are given a permanent deformation for forming one or several pattern creating surfaces (111) at the forming within the patterning area (110), and the index of density (A0−Ad)/A0 of the wire (100) within the pattern creating surfaces (111) is between 0 and 1, whereby A0 is the area of an individual wire opening before the deformation and Ad is the area after the deformation.
A wire for forming a patterned fibre web, said wire (100;
A patterned fibre web, formed on a wire (100) comprising a plurality of threads (101, 102, 103, 104, 105, 106) arranged in a wire structure and a patterning area (110), whereby the fibre web (118) at least shows one pattern (119, 119′) deviating from the wire structure, wherein the pattern (119, 119 ′) has been created by pattern creating surfaces (111) formed by means of a permanent deformation of a number of the threads (103, 104, 105) within the patterning area (110), and which within the patterning area (110) comprises first sections with a first basis weight unaffected of the pattern creating surfaces (111), and second sections with a second basis weight affected of the pattern creating surfaces, which is lesser than the first basis weight, and wherein the pattern (119, 119 ′) comprises one or several infinitely variable changeovers from the first basis weight to the second basis weight.
Dependencies are inferred from the claim text.