公开(公告)号：EP3044357A1

公开(公告)日：2016-07-20

申请号：EP14843549.8

申请日：2014-09-12

Applicant: Invista Technologies S.à.r.l.

Inventor： BIVIGOU-KOUMBA, Achille M. ,  LIU, Hong ,  BING-WO, Ronald D. ,  SMITH, Steven W.

IPC: D03D15/08 ,  D01F6/70 ,  D01F8/00

CPC classification number: D01F6/70 ,  A61F13/15593 ,  A61F13/4902 ,  D01F1/10 ,  D01F6/72 ,  D01F6/94 ,  D01F8/16

Abstract: An elastic fiber is provided that includes polyurethane and/or polyurethaneurea and an additive such as polystyrene, an acrylic polymer, polyvinylpyrrolidone, copolymers thereof, derivatives thereof, and combinations thereof. The elastic fiber is useful in laminate structures, such as disposable hygiene articles as wells as in knit, woven and nonwoven fabric constructions.

公开(公告)号：EP1784352B1

公开(公告)日：2011-01-26

申请号：EP05778489.4

申请日：2005-07-15

Applicant: INVISTA Technologies S.à.r.l.

Inventor： MANNING, Thomas, W., Jr. ,  BING-WO, Ronald D.

IPC: B65H49/16 ,  B65H57/14 ,  B65H51/32 ,  B65H59/38

CPC classification number: B65H49/16 ,  B65H49/32 ,  B65H51/32 ,  B65H57/14 ,  B65H59/388 ,  B65H2701/31 ,  B65H2701/319

Abstract: An apparatus and method for unwinding yams with: (1) a drive roll with a polished metal finish to ensure good fiber/metal contact; (2) a drive roll/separator roll combination that enables multiple wraps of yam on the drive roll; (3) pivoting yarn holding arms for the active and standby packages that provide for easier access to the packages on a frame; and (4) in combination with the pivoting yarn holding arms, one or more pivoting legs extending from a frame so that the apparatus has a relatively small footprint and simplified yarn threading/string-up as compared to background art OETO apparatus.

公开(公告)号：EP1784352A1

公开(公告)日：2007-05-16

申请号：EP05778489.4

申请日：2005-07-15

Applicant: INVISTA Technologies S.à.r.l.

Inventor： MANNING, Thomas, W., Jr. ,  MANNING, Thomas, W., Jr. ,  BING-WO, Ronald D.

IPC: B65H49/16 ,  B65H57/14 ,  B65H51/32 ,  B65H59/38

CPC classification number: B65H49/16 ,  B65H49/32 ,  B65H51/32 ,  B65H57/14 ,  B65H59/388 ,  B65H2701/31 ,  B65H2701/319

Abstract: An apparatus and method for unwinding yams with: (1) a drive roll with a polished metal finish to ensure good fiber/metal contact; (2) a drive roll/separator roll combination that enables multiple wraps of yam on the drive roll; (3) pivoting yarn holding arms for the active and standby packages that provide for easier access to the packages on a frame; and (4) in combination with the pivoting yarn holding arms, one or more pivoting legs extending from a frame so that the apparatus has a relatively small footprint and simplified yarn threading/string-up as compared to background art OETO apparatus.

公开(公告)号：EP2981642B1

公开(公告)日：2019-03-06

申请号：EP14779208.9

申请日：2014-04-02

Applicant: Invista Technologies S.à.r.l.

Inventor： BING-WO, Ronald D.

IPC: D02G3/32 ,  D06B3/36 ,  B65H59/38 ,  B65H63/04

公开(公告)号：EP2981642A1

公开(公告)日：2016-02-10

申请号：EP14779208.9

申请日：2014-04-02

Applicant: Invista Technologies S.à.r.l.

Inventor： BING-WO, Ronald D.

IPC: D02G3/32 ,  D06B3/36

CPC classification number: B65H59/388 ,  B65H63/04 ,  B65H2701/319

Abstract: A method for unwinding yarn is provided that allows for maximizing the draft of the yarn, while monitoring tension. The method includes providing a yarn package including elastic yarn; choosing a selected draft for said elastic yarn; unwinding the elastic yarn from the yarn package from a driven roll to yarn processing equipment at the selected draft which is determined by a ratio of a speed of the yarn at the yarn processing equipment to a speed of the driven roll; measuring tension in the elastic yarn; and providing an alarm when said tension reaches a critical level.