公开(公告)号：CZ290806B6

公开(公告)日：2002-10-16

申请号：CZ164193

申请日：1992-01-28

Applicant: PROCTER & GAMBLE

Inventor： WEBER GERALD MARTIN ,  VINNAGE WILLIAM ROBERT JR ,  BENSON DOUGLAS HERRIN ,  SABATELLI DAVID ALBERT ,  RICHARDSON JAMES WILLIAM

IPC: A61F13/49 ,  A61F5/44 ,  A61F13/15 ,  A61F13/496 ,  B29C55/02 ,  B29C55/04 ,  B29C55/06 ,  B29C55/08 ,  B29C55/10 ,  B29C55/18 ,  B29C59/04 ,  B29K21/00 ,  B29L31/48 ,  B32B5/24 ,  B32B37/00

Abstract: In the present invention there is disclosed a method for stretching a zero strain stretch laminate web (1) to impart elasticity thereto in the direction of stretching, at least up to the point of initial stretching, said method comprising the steps of: (a) feeding a zero strain stretch laminate web (1) comprising a substantially untensioned first elastomeric ply (4a) intermittently secured to a substantially untensioned second ply comprising a continuous web which is elongatable, but which exhibits less elastic recovery than said first ply, between a pair of opposed pressure applicators having three-dimensional surfaces (23, 24, 510, 520), which are complementary to one another; (b) restraining the opposed peripheral edge portions (210, 220) of said second elongatable ply (5, 6) adjacent the portion (4a) of said zero strain stretch laminate web (1) to be incrementally stretched for permanent elongation thereof; and (c) restraining the opposed peripheral edge portions (5, 6) of said second elongatable ply to substantially prevent slippage or contraction thereof in a direction substantially parallel to the direction of stretching. Apparatus for stretching a laminate web comprises means for feeding the laminate web (1) containing a substantially untensioned first elastomeric ply (4a) being continuously or intermittently secured to a substantially untensioned second ply (5, 6), which is elongatable, but which exhibits less elastic recovery than said first elastomeric ply. Further web feeding means comprising laminating rolls (15), stabilizing rolls (16) and a side notching apparatus (60), further a pair of opposed pressure applicators. The apparatus also comprises retention means arranged opposite to peripheral marginal parts of the second elongatable ply (5, 6).

公开(公告)号：PE06572001A1

公开(公告)日：2001-06-29

申请号：PE0006982000

申请日：2000-07-14

Applicant: PROCTER & GAMBLE

Inventor： WEBER GERALD MARTIN ,  ADUWUSU KOFI ,  DESMARAIS THOMAS ALLEN ,  POLAT OSMAN ,  VALERIO DANIEL JOSEPH

IPC: F26B5/16 ,  C08J9/36 ,  F26B13/16 ,  F26B13/26

CPC classification number: F26B13/26 ,  F26B13/16

Abstract: DONDE EL PROCESO COMPRENDE: a) PROVEER UN MATERIAL DE ESPUMA, EN FORMA DE HOJA, DE LONGITUD INDETERMINADA QUE POSEE PRIMERA Y SEGUNDA SUPERFICIES OPUESTAS Y QUE TIENE POR LO MENOS UNA SUPERFICIE EXPUESTA, CAPILARES Y HUMEDAD CONTENIDA; b) PROVEER AL MENOS UN ELEMENTO DE DESAGUADO CAPILAR, TAL COMO UN FILTRO SINFIN; c) PONER EN CONTACTO EL ELEMENTO DE DESAGUADO CAPILAR CON LA SUPERFICIE EXTERNA DEL MATERIAL DE ESPUMA, POR MEDIO DE DOS CILINDROS QUE GIRAN AXIALMENTE Y QUE FORMAN UN DISPOSITIVO DE PELLIZCO ENTRE LOS MISMOS, DE MANERA QUE LA HUMEDAD DEL MATERIAL SEA ELIMINADA; Y, d) SECAR POR RECIRCULACION DE AIRE, EL MATERIAL DE ESPUMA. DICHOS CILINDROS TIENEN CAPILARES PERIFERICOS, LOS CUALES SON MANTENIDOS EN UN VACIO INFERIOR A LA PRESION DE PENETRACION DE LOS CAPILARES DEL MATERIAL DE ESPUMA

公开(公告)号：NO994562D0

公开(公告)日：1999-09-20

申请号：NO994562

申请日：1999-09-20

Applicant: PROCTER & GAMBLE

Inventor： WEBER GERALD MARTIN ,  YOUNG GERALD ALFRED ,  TAYLOR GREGORY WADE ,  LAVON GARY DEAN

IPC: A61F13/53 ,  A61F5/44 ,  A61F13/15 ,  A61F13/472 ,  A61F13/49

Abstract: Disclosed is a shaped absorbent core suitable for absorbing and retaining aqueous body fluids. The absorbent cores comprise a front panel and a back panel. The front and back panels are made from fluid absorbent material, and each has an inner end, an outer end, and two sides. The inner and outer ends of each front and back panel have a length, with the inner end of each being shorter than the outer length of each. The front and back panels may comprise multiple layers of absorbent material. The absorbent cores also comprise a center section made from fluid absorbent material having first and second ends. The first end of the center section is in fluid communication with the front panel by overlapping the front panel intermediate the front inner and outer ends, and the second end is in fluid communication with the back panel by overlapping the back panel intermediate the back inner and outer ends. A method of preparing a shaped absorbent core comprises the steps of providing at least one continuous rectilinear web of first absorbent material having a longitudinal axis and a pair of lateral edges defining a first width. A continuous rectilinear web of second absorbent material having a longitudinal axis and a pair of lateral edges defining a second width wider than the first width of the first absorbent material is formed with opposing generally arcuate notched areas in the lateral edges at spaced intervals along the web of second absorbent material. The web of second absorbent material is severed transversely along a line intersecting the opposed generally arcuate notched areas at spaced intervals to form sections having opposed notched ends The sections are then positioned such that the notched ends are spaced apart and overlap the continuous rectilinear web of first absorbent material, forming layers of absorbent material. Then the layers of absorbent material are severed transversely at a point intermediate the notched ends.

公开(公告)号：HK1006821A1

公开(公告)日：1999-03-19

申请号：HK98105429

申请日：1998-06-16

Applicant: PROCTER & GAMBLE

Inventor： WEBER GERALD MARTIN ,  VINNAGE WILLIAM ROBERT ,  BENSON DOUGLAS HERRIN ,  SABATELLI DAVID ALBERT ,  RICHARDSON JAMES WILLIAM

IPC: A61F5/44 ,  A61F13/15 ,  A61F13/49 ,  A61F13/496 ,  B29C55/02 ,  B29C55/04 ,  B29C55/06 ,  B29C55/08 ,  B29C55/10 ,  B29C55/18 ,  B29C59/04 ,  B29K21/00 ,  B29L31/48 ,  B32B5/24 ,  B32B37/00 ,  B29C ,  A61F

Abstract: An improved method and apparatus for incrementally stretching "zero strain" stretch laminate webs to impart elasticity thereto in the direction of initial stretching, at least up to the point of initial stretching. The "zero strain" stretch laminate material is formed of at least two plies of material which are either intermittently or substantially continuously secured to one another along at least a portion of their coextensive surfaces while in a substantially untensioned ("zero strain") condition. One of the plies is stretchable and elastomeric, while the second ply is elongatable, but not necessarily elastomeric. The second ply will, upon stretching of the laminate, be at least to a degree permanently elongated so that, upon release of the applied tensile forces, it will not return to its original undistorted configuration. This results in z-direction bulking of the laminate web when the applied tension is released as well as subsequent elastic extensibility in the direction of initial stretching, at least up to the point of initial stretching. In a particularly preferred embodiment of the present invention the opposed peripheral edge portions of the laminate web to be incrementally stretched are subjected to restraint to substantially prevent inwardly directed slippage or contraction thereof in a direction parallel to the direction of stretching. This maximizes the effectiveness of the incremental web stretching operation by forcing the "zero strain" stretch laminate web to undergo the fullest possible degree of elongation during the incremental stretching operation.

公开(公告)号：ZA9802572B

公开(公告)日：1998-10-01

申请号：ZA9802572

申请日：1998-03-26

Applicant: PROCTER & GAMBLE

Inventor： WEBER GERALD MARTIN ,  TAYLOR GREGORY WADE ,  YOUNG GERALD ALFRED ,  LAVON GARY DEAN

IPC: A61F13/53 ,  A61F5/44 ,  A61F13/15 ,  A61F13/472 ,  A61F13/49 ,  A61F ,  B32B

CPC classification number: A61F13/535 ,  A61F2013/4568 ,  A61F2013/530802

公开(公告)号：SG47592A1

公开(公告)日：1998-04-17

申请号：SG1996003000

申请日：1992-01-28

Applicant: PROCTER & GAMBLE

Inventor： WEBER GERALD MARTIN ,  BENSON DOUGLAS HERRIN ,  RICHARDSON JAMES WILLIAM ,  VINNAGE WILLIAM ROBERT JR ,  SABATELLI DAVID ALBERT

IPC: A61F5/44 ,  A61F13/15 ,  A61F13/496 ,  B29C55/02 ,  A61F13/49 ,  B29C55/04 ,  B29C55/06 ,  B29C55/08 ,  B29C55/10 ,  B29C55/18 ,  B29C59/04 ,  B29K21/00 ,  B29L31/48 ,  B32B5/24 ,  B32B37/00

Abstract: An improved method and apparatus for incrementally stretching "zero strain" stretch laminate webs to impart elasticity thereto in the direction of initial stretching, at least up to the point of initial stretching. The "zero strain" stretch laminate material is formed of at least two plies of material which are either intermittently or substantially continuously secured to one another along at least a portion of their coextensive surfaces while in a substantially untensioned ("zero strain") condition. One of the plies is stretchable and elastomeric, while the second ply is elongatable, but not necessarily elastomeric. The second ply will, upon stretching of the laminate, be at least to a degree permanently elongated so that, upon release of the applied tensile forces, it will not return to its original undistorted configuration. This results in z-direction bulking of the laminate web when the applied tension is released as well as subsequent elastic extensibility in the direction of initial stretching, at least up to the point of initial stretching. In a particularly preferred embodiment of the present invention the opposed peripheral edge portions of the laminate web to be incrementally stretched are subjected to restraint to substantially prevent inwardly directed slippage or contraction thereof in a direction parallel to the direction of stretching. This maximizes the effectiveness of the incremental web stretching operation by forcing the "zero strain" stretch laminate web to undergo the fullest possible degree of elongation during the incremental stretching operation.

公开(公告)号：DK0573587T3

公开(公告)日：1997-06-30

申请号：DK92907932

申请日：1992-01-28

Applicant: PROCTER & GAMBLE

Inventor： WEBER GERALD MARTIN ,  RICHARDSON JAMES WILLIAMSON

IPC: A61F5/44 ,  A61F13/15 ,  A61F13/496 ,  B29C55/02 ,  A61F13/49 ,  B29C55/06 ,  B29C55/08 ,  B29C55/10 ,  B29C55/18 ,  B29C59/04 ,  B29K21/00 ,  B29L9/00 ,  B32B5/24 ,  B32B37/00

Abstract: An improved method and apparatus for incrementally stretching "zero strain" stretch laminate webs to impart elasticity thereto in the direction of stretching, at least up to the point of initial stretching. The "zero strain" stretch laminate material is formed of at least two plies of material which are either intermittently or substantially continuously secured to one another along at least a portion of their coextensive surfaces while in a substantially untensioned ("zero strain") condition. One of the plies is stretchable and elastomeric, while the second ply is elongatable, but not necessarily elastomeric. The second ply will, upon stretching of the laminate, be at least to a degree permanently elongated so that, upon release of the applied tensile forces, it will not return to its original undistorted configuration. This results in z-direction bulking of the laminate web when the applied tension is released as well as subsequent elastic extensibility in the direction of initial stretching, at least up to the point of initial stretching. In a particularly preferred embodiment of the present invention, the mechanical stretching operation is carried out by passing said laminate web between multiple pairs of meshing corrugated rolls, each pair of rolls exhibiting a greater degree of meshing than the preceding pair, to sequentially stretch said web in stages. Sequentially stretching the web in the foregoing manner minimizes damage to the web.

公开(公告)号：NO180227C

公开(公告)日：1997-03-12

申请号：NO933046

申请日：1993-08-26

Applicant: PROCTER & GAMBLE

Inventor： BUELL KENNETH BARCLAY ,  WEBER GERALD MARTIN ,  MICK JAMES ROBERT ,  RICHARDSON JAMES WILLIAM

IPC: A61F5/44 ,  A61F13/15 ,  A61F13/49 ,  B29C55/02 ,  B29C55/04 ,  B29C55/06 ,  B29C55/08 ,  B29C55/10 ,  B29C55/18 ,  B29K21/00 ,  B29L31/48 ,  B32B5/04 ,  B32B31/16

Abstract: A "zero strain" stretch laminate web exhibiting a non-uniform degree of elasticity, as measured in the direction of elasticization at various points along an axis oriented substantially perpendicular to the direction of elasticization. Improved method and apparatus for non-uniformly stretching "zero strain" stretch laminate webs to impart elasticity thereto in the direction of stretching, at least up to the point of initial stretching are also disclosed. The "zero strain" stretch laminate material is formed of at least two plies of material which are either intermittently or substantially continuously secured to one another along at least a portion of their coextensive surfaces while in a substantially untensioned ("zero strain") condition. One of the plies is stretchable and elastomeric, while the second ply is elongatable, but not necessarily elastomeric. The second ply will, upon stretching of the laminate, be at least to a degree permanently elongated so that, upon release of the applied tensile forces, it will not return to its original undistorted configuration. This results in z-direction bulking of the laminate web when the applied tension is released as well as elastic extensibility in the direction of initial stretching, at least up to the point of initial stretching. In a particularly preferred embodiment of the present invention, the mechanical stretching of said laminate web is carried out by passing said laminate web between at least one pair of meshing corrugated rolls, the degree of meshing between said corrugated rolls being non-uniform about the periphery of said rolls, whereby said laminate web is subjected to non-uniform incremental stretching as it passes therebetween to produce a varying degree of elasticity in the resultant web.

公开(公告)号：NO180227B

公开(公告)日：1996-12-02

申请号：NO933046

申请日：1993-08-26

Applicant: PROCTER & GAMBLE

Inventor： BUELL KENNETH BARCLAY ,  WEBER GERALD MARTIN ,  MICK JAMES ROBERT ,  RICHARDSON JAMES WILLIAM

IPC: A61F5/44 ,  A61F13/15 ,  A61F13/49 ,  B29C55/02 ,  B29C55/04 ,  B29C55/06 ,  B29C55/08 ,  B29C55/10 ,  B29C55/18 ,  B29K21/00 ,  B29L31/48 ,  B32B5/04 ,  B32B31/16

Abstract: A "zero strain" stretch laminate web exhibiting a non-uniform degree of elasticity, as measured in the direction of elasticization at various points along an axis oriented substantially perpendicular to the direction of elasticization. Improved method and apparatus for non-uniformly stretching "zero strain" stretch laminate webs to impart elasticity thereto in the direction of stretching, at least up to the point of initial stretching are also disclosed. The "zero strain" stretch laminate material is formed of at least two plies of material which are either intermittently or substantially continuously secured to one another along at least a portion of their coextensive surfaces while in a substantially untensioned ("zero strain") condition. One of the plies is stretchable and elastomeric, while the second ply is elongatable, but not necessarily elastomeric. The second ply will, upon stretching of the laminate, be at least to a degree permanently elongated so that, upon release of the applied tensile forces, it will not return to its original undistorted configuration. This results in z-direction bulking of the laminate web when the applied tension is released as well as elastic extensibility in the direction of initial stretching, at least up to the point of initial stretching. In a particularly preferred embodiment of the present invention, the mechanical stretching of said laminate web is carried out by passing said laminate web between at least one pair of meshing corrugated rolls, the degree of meshing between said corrugated rolls being non-uniform about the periphery of said rolls, whereby said laminate web is subjected to non-uniform incremental stretching as it passes therebetween to produce a varying degree of elasticity in the resultant web.

公开(公告)号：NZ241762A

公开(公告)日：1995-04-27

申请号：NZ24176292

申请日：1992-02-27

Applicant: PROCTER & GAMBLE

Inventor： WEBER GERALD MARTIN ,  VINNAGE WILLIAM ROBERT ,  BENSON DOUGLAS HERRIN ,  SABATELLI DAVID ALBERT ,  RICHARDSON JAMES WILLIAM

IPC: A61F5/44 ,  A61F13/15 ,  A61F13/496 ,  B29C55/02 ,  B29C55/04 ,  A61F13/49 ,  B29C55/06 ,  B29C55/08 ,  B29C55/10 ,  B29C55/18 ,  B29C59/04 ,  B29K21/00 ,  B29L31/48 ,  B32B5/24 ,  B32B37/00 ,  D06C3/00

Abstract: An improved method and apparatus for incrementally stretching "zero strain" stretch laminate webs to impart elasticity thereto in the direction of initial stretching, at least up to the point of initial stretching. The "zero strain" stretch laminate material is formed of at least two plies of material which are either intermittently or substantially continuously secured to one another along at least a portion of their coextensive surfaces while in a substantially untensioned ("zero strain") condition. One of the plies is stretchable and elastomeric, while the second ply is elongatable, but not necessarily elastomeric. The second ply will, upon stretching of the laminate, be at least to a degree permanently elongated so that, upon release of the applied tensile forces, it will not return to its original undistorted configuration. This results in z-direction bulking of the laminate web when the applied tension is released as well as subsequent elastic extensibility in the direction of initial stretching, at least up to the point of initial stretching. In a particularly preferred embodiment of the present invention the opposed peripheral edge portions of the laminate web to be incrementally stretched are subjected to restraint to substantially prevent inwardly directed slippage or contraction thereof in a direction parallel to the direction of stretching. This maximizes the effectiveness of the incremental web stretching operation by forcing the "zero strain" stretch laminate web to undergo the fullest possible degree of elongation during the incremental stretching operation.