METHOD OF PRODUCING CLOTH-LIKE MICROPOROUS LAMINATED MATERIAL FROM NONWOVEN FIBROUS CLOTH AND THERMOPLASTIC FILM PERMEABLE FOR AIR AND WET STEAM AND IMPERMEABLE FOR LIQUID Russian patent published in 2001 - IPC

Abstract RU 2161560 C2

FIELD: production of cloth-like microporous laminated materials permeable for air and wet steam but impermeable for liquid; applicable in manufacture of diapers, children training trousers, hygiene clothes, linen, etc. SUBSTANCE: method includes introduction of nonwoven fibrous cloth and thermoplastic film forming micropores into slot between rollers, regulation of compression force between cloth and film in slots for their joining and lamination of cloth surface with film to form laminated breadth; additional action on laminated breadth at ambient temperature by incremental drawing along line running in fact uniformly across laminated breadth and over its entire thickness to obtain cloth-like microporous laminated material. The other method, as distinct from said method, includes extrusion lamination of cloth surface by continuous extrusion into slot of extrudate forming micropores at temperature above point of its softening with subsequent drawing of laminated breadth in compliance with said method but by continuous introduction of it under conditions of flow line between rollers for incremental drawing to obtain cloth-like microporous laminated material. Produced material is permeable for air and wet steam but impermeable for liquid, is similar to cloth and produced feeling of soft nonwoven cloth. EFFECT: higher efficiency. 12 cl, 4 dwg, 1 tbl, 4 ex

Similar patents RU2161560C2

Title Year Author Number
TISSUE-EQUIVALENT BIODEGRADATING COMPOSITE MATERIAL AND METHOD FOR ITS MANUFACTURE 1998
  • Vu Paj-Chuan
  • Ehre Filipp
RU2194622C2
ELASTIC LAMINATED MATERIAL OF NONWOVEN FIBROUS CLOTH AND ELASTOMER FILM AND METHOD OF MANUFACTURING THEREOF 1994
  • Vu Paj-Chuan
RU2117581C1
LAMINATED MATERIAL OF STRETCHED OUT NONWOVEN FIBROUS CLOTH AND THERMOPLASTIC FILM AND METHOD OF MANUFACTURING THEREOF 1994
  • Vu Paj-Chuan
RU2117580C1
APPARATUS AND METHOD FOR LAMINATION OF NARROW NONWOVEN SHEETS BY POLYMER FILM, AND MATERIAL MANUFACTURED BY THIS METHOD 1996
  • Mortellite Robert M.
  • Mushaben Tomas G.
  • Preston Kevin U.
RU2156693C2
HIGH-SPEED METHOD TO MANUFACTURE ARTICLES MADE OF A MICROPOROUS FILM 1999
  • Vu Paj-Chuan
  • Kanchio Leopol'Do V.
  • Sharma Girish K.
RU2224772C2
AIR- AND STEAM-PERMEABLE BIODEGRADABLE FILMS AND A METHOD FOR MANUFACTURING THEREOF 2001
  • Vu Paj-Chuan
  • Rajl Tomas R.
RU2256673C2
DEVICE FOR PREVENTION OF FORMING OF PIN-HOLES IN ZONE LAMINATES (MODIFICATIONS) AND LAMINATE (MODIFICATIONS) 1999
  • Mushaben Tomas G.
RU2220854C2
MICROPOROUS AIR-PERMEABLE STRUCTURAL MATERIALS CONTAINING COATED WOVEN AND/OR NONWOVEN MATERIALS, AND METHOD OF PRODUCING SAID MATERIALS 2007
  • Dzhouns Gregori K.
  • Blehnd Dehvid G.
  • Mushaben Tomas G.
  • Dzherv Nikol' A.
RU2418820C2
MULTILAYERED MICROPOROUS FILMS AND THE METHOD OF THEIR PRODUCTION 2002
  • Dzhounz Gregori K.
  • Makamish Larri Kh'Jui
  • Vu Paj-Chuan
  • Lilli Kennet L.
  • Shelli Kristofer Aaron
  • Uehndorf Mark Ehndrju
RU2305632C2
METHOD AND EQUIPMENT FOR UNIFORM STRETCHING OF THERMOPLASTIC FILM AND PRODUCTS MANUFACTURED HEREBY 2005
  • Kanchio Leopol'Do V.
  • Mushaben Tomas G.
  • Mortellite Robert M.
  • U Paj-Chuan'
RU2349453C2

RU 2 161 560 C2

Authors

Vu Paj-Chuan

Sharma Girish K.

Kanchio Leopol'Do V.

Dates

2001-01-10Published

1997-02-10Filed