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WO2007111990A3 - Method and apparatus for forming an absorbent core - Google Patents

Method and apparatus for forming an absorbent core Download PDF

Info

Publication number
WO2007111990A3
WO2007111990A3 PCT/US2007/007222 US2007007222W WO2007111990A3 WO 2007111990 A3 WO2007111990 A3 WO 2007111990A3 US 2007007222 W US2007007222 W US 2007007222W WO 2007111990 A3 WO2007111990 A3 WO 2007111990A3
Authority
WO
WIPO (PCT)
Prior art keywords
absorbent core
tow
based absorbent
core composite
forming
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2007/007222
Other languages
French (fr)
Other versions
WO2007111990A2 (en
Inventor
John J Walter
John D Litvay
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2007111990A2 publication Critical patent/WO2007111990A2/en
Publication of WO2007111990A3 publication Critical patent/WO2007111990A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F2013/530481—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials
    • A61F2013/530569—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials characterized by the particle size

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

An apparatus and a method for making an absorbent core from a tow-based absorbent core composite. The tow-based absorbent core composite is made using a forming apparatus. The tow-based absorbent core composite is fed into a crimping device. The crimping device generates a pattern on the tow-based absorbent core composite. The tow-based absorbent core is cut into absorbent cores using a cutting device. The apparatus excludes a set of calender rolls used for compressing the tow-based absorbent core composite. The method eliminates a step of compressing the tow-based absorbent core composite using the set of calender rolls.
PCT/US2007/007222 2006-03-24 2007-03-24 Method and apparatus for forming an absorbent core Ceased WO2007111990A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US78545506P 2006-03-24 2006-03-24
US60/785,455 2006-03-24

Publications (2)

Publication Number Publication Date
WO2007111990A2 WO2007111990A2 (en) 2007-10-04
WO2007111990A3 true WO2007111990A3 (en) 2008-04-24

Family

ID=38541627

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/US2007/006866 Ceased WO2007111872A2 (en) 2006-03-24 2007-03-20 Absorbent product containing sap powder
PCT/US2007/007222 Ceased WO2007111990A2 (en) 2006-03-24 2007-03-24 Method and apparatus for forming an absorbent core

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/US2007/006866 Ceased WO2007111872A2 (en) 2006-03-24 2007-03-20 Absorbent product containing sap powder

Country Status (1)

Country Link
WO (2) WO2007111872A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2078477B1 (en) * 2008-01-14 2011-07-27 Recticel Body supporting structure
US20120062687A1 (en) * 2010-09-13 2012-03-15 Polycom, Inc. Systems and methods for scheduling shared program content videoconferencing
CN111249069B (en) * 2020-02-29 2025-08-08 浙江振宇吸水材料科技有限公司 A glue-free reverse absorption water-absorbing core and its preparation process

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040102125A1 (en) * 2002-11-27 2004-05-27 Morman Michael Tod Extensible laminate of nonwoven and elastomeric materials and process for making the same
US20050147711A1 (en) * 2002-01-16 2005-07-07 John Walter Method and apparatus for forming tow-based absorbent structures with a single casing sheet

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050147711A1 (en) * 2002-01-16 2005-07-07 John Walter Method and apparatus for forming tow-based absorbent structures with a single casing sheet
US20040102125A1 (en) * 2002-11-27 2004-05-27 Morman Michael Tod Extensible laminate of nonwoven and elastomeric materials and process for making the same

Also Published As

Publication number Publication date
WO2007111990A2 (en) 2007-10-04
WO2007111872A2 (en) 2007-10-04

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