• 专利标题:   Producing non-woven elements, comprises depositing loose unbound fibers on movable surface and graphene and/or graphene oxide, and binding together loose un bound fibers to form structure of bound fibers.
  • 专利号:   EP3954818-A1, US2022049388-A1, CN114075714-A, EP3954818-B1, ES2939552-T3
  • 发明人:   GUALTIERI D, ANTONELLI G B
  • 专利权人:   FAMECCANICA DATA SPA, FAMECCANICA DATA SPA, FAMECCANICA DATA SPA, FAMECCANICA DATA SPA
  • 国际专利分类:   D04H001/407, D04H001/587, D04H001/64, D04H001/732, D01G023/00, D04H001/413, D04H001/425, D04H001/736, A61F013/15, D06M011/74
  • 专利详细信息:   EP3954818-A1 16 Feb 2022 D04H-001/407 202216 Pages: 12 English
  • 申请详细信息:   EP3954818-A1 EP189039 02 Aug 2021
  • 优先权号:   IT00019963

▎ 摘  要

NOVELTY - The method involves depositing loose unbound fibers on a movable surface and graphene and/or graphene oxide. The loose unbound fibers are binded together so as to form a structure of bound fibers in which a graphene and/or graphene oxide is incorporated. The loose unbound fibers and granular superabsorbent polymer are deposited onto the movable surface. The graphene and/or graphene oxide is incorporated into the granular superabsorbent polymer. The loose unbound fibers and graphene and/or graphene oxide by a mixing unit (26) before binding together the loose unbound fibers. USE - Method for producing non-woven elements (claimed) used for producing absorbent sanitary articles such as diapers and diaper-pants for children, incontinence pads for adults and sanitary towels for women. Uses include but are not limited to face protection masks, functionalized plasters for dressing wounds and/or lesions, heating plasters, sanitary bandages or bands, elements for packaging of products, articles for cleaning surfaces such as disposable cloths, napkins or other dust-catching articles. ADVANTAGE - The method enables producing discrete non-woven elements directly in the production line of absorbent sanitary articles starting from unbound fibers, thus avoiding the need to provide unwinders of raw materials from reels, and allowing different structures to be obtained that are bound in the required way without being restricted to the availability of suppliers of raw material in reels. The method allows the creation of elements with shaped structures that cannot be made using ATB nonwoven webs or other high loft webs. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) an apparatus for producing non-woven elements; and (2) a non-woven element. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of an apparatus for producing discrete non-woven elements. Fiber deposition unit (14) Fiber stock (16) Upper branch (20) Suction chamber (22) Mixing unit (26)