WINDING CORES FOR MATERIAL ROLLS HAVING HIGH ROLL STRAIN ENERGY, AND METHOD FOR MAKING SAME
    2.
    发明授权
    WINDING CORES FOR MATERIAL ROLLS HAVING HIGH ROLL STRAIN ENERGY, AND METHOD FOR MAKING SAME 有权
    卷芯材料全为生产高ROLLENFORMÄNDERUNGSSENERGIE及加工辊

    公开(公告)号:EP2244964B1

    公开(公告)日:2012-06-20

    申请号:EP09709069.0

    申请日:2009-01-14

    IPC分类号: B65H75/10

    摘要: Winding cores for elastically stretched or shrinkable materials are designed to significantly reduce the amount of roll strain energy developed during winding. This is accomplished by building into the core an energy-absorbing zone (220) that can be collapsed by a substantial amount and in a relatively controlled fashion over a substantial period of time under the influence of a continued radially inward pressure exerted by the roll of wound material. The energy-absorbing zone is formed by one or more collapsible layers (100) having repeated atomic regions (105) projecting out of a plane of the sheet and each defining a plurality of normal vectors (108a, 108b, 108c, 108d) in different sub-regions of the atomic region, wherein the normal vectors, when projected onto the two-dimensional plane of the sheet, are in a plurality of different directions in the plane.

    CORES FOR PRESSURE-SENSITIVE ADHESIVE TAPE, AND METHODS FOR MAKING SAME
    3.
    发明公开
    CORES FOR PRESSURE-SENSITIVE ADHESIVE TAPE, AND METHODS FOR MAKING SAME 审中-公开
    用于压敏胶带和工艺磁芯用于生产

    公开(公告)号:EP2001782A2

    公开(公告)日:2008-12-17

    申请号:EP07757021.6

    申请日:2007-02-15

    IPC分类号: B65H75/10 B65H75/50

    摘要: A core for pressure-sensitive adhesive tape comprises a structural portion such as a wound paperboard tube, and a polymer film ply wrapped about the outer surface of the structural portion and adhered thereto. The polymer film ply has a release coating on its outer surface to allow an adhesive tape wound onto the core to readily and cleanly release from the core during unwinding. The polymer film ply has a lap joint between its opposite edges. The lap joint can be ultrasonically welded during formation of the tape core. Alternatively, the release coating along the underlying edge of the lap joint is removed by a solvent prior to formation of the lap joint.

    WINDING CORES FOR MATERIAL ROLLS HAVING HIGH ROLL STRAIN ENERGY, AND METHOD FOR MAKING SAME
    5.
    发明公开
    WINDING CORES FOR MATERIAL ROLLS HAVING HIGH ROLL STRAIN ENERGY, AND METHOD FOR MAKING SAME 有权
    卷芯材料全为生产高ROLLENFORMÄNDERUNGSSENERGIE及加工辊

    公开(公告)号:EP2244964A1

    公开(公告)日:2010-11-03

    申请号:EP09709069.0

    申请日:2009-01-14

    IPC分类号: B65H75/10 D06B23/04

    摘要: Winding cores for elastically stretched or shrinkable materials are designed to significantly reduce the amount of roll strain energy developed during winding. This is accomplished by building into the core an energy-absorbing zone (220) that can be collapsed by a substantial amount and in a relatively controlled fashion over a substantial period of time under the influence of a continued radially inward pressure exerted by the roll of wound material. The energy-absorbing zone is formed by one or more collapsible layers (100) having repeated atomic regions (105) projecting out of a plane of the sheet and each defining a plurality of normal vectors (108a, 108b, 108c, 108d) in different sub-regions of the atomic region, wherein the normal vectors, when projected onto the two-dimensional plane of the sheet, are in a plurality of different directions in the plane.

    ACTIVATABLE ADHESIVE WEBS AND ARTICLES MADE THEREFROM
    7.
    发明公开
    ACTIVATABLE ADHESIVE WEBS AND ARTICLES MADE THEREFROM 审中-公开
    活化的粘性纤维绒及由其制成的物体

    公开(公告)号:EP1549721A2

    公开(公告)日:2005-07-06

    申请号:EP03770738.7

    申请日:2003-10-10

    IPC分类号: C09J1/02 C09J7/04 B31C3/00

    CPC分类号: C09J1/02 C09J7/21 C09J7/35

    摘要: The present invention relates to activatable webs having fibrous substrates coated with activatable adhesive and methods of forming the webs into articles by indirectly activating the adhesive using microwave energy. The activatable web may further include a protective coating of a material that is compatible with the adhesive. One or more activatable webs can be formed into the shape of an article such as by wrapping the activatable webs around a mandrel. The activatable webs can be subjected to microwave energy shortly before being formed into the shape of the article or while they are held in the appropriate shape. The microwave energy is absorbed by moisture retained within the fibrous substrate, which becomes heated. The heated moisture activates the adhesive, causing it to bond to any webs in which the activatable web has been brought into contact and to stiffen.