Gas filled crosslaminate and method and apparatus for its manufacture

    公开(公告)号:US10046546B2

    公开(公告)日:2018-08-14

    申请号:US14844848

    申请日:2015-09-03

    Abstract: Crosslaminates of thermoplastic films have at least one of the films formed as a fluted structure, and two films are laminated to one another in such a manner that pockets are formed which contain gas. The pockets allow passage of gas between at least two adjacent flutes, whereby the product has an improved handle, and bags formed of the laminate have good stacking properties when filled with coarse particulates. The flute pitch is generally no more than 3 mm, while the pocket length is less than 50 mm. The bonding method involves spot bonding between the films, achieved by adhering the films together between crown portions of bosses on one film with molten material on the other film under a low pressure process, for instance achieved by provision of air pressure through adaptation of production apparatus, for instance die portions.

    Bag
    27.
    发明授权
    Bag 有权

    公开(公告)号:US09969534B2

    公开(公告)日:2018-05-15

    申请号:US14926334

    申请日:2015-10-29

    CPC classification number: B65D33/28 B65F1/0006

    Abstract: The bag may include a draw tape that may be used to cinch closed the opening of the bag. The draw tape may include an elastic characteristic and may be smaller in size than the peripheral distance about the opening. The draw tape in its natural contracted state may partially constrict the opening. However, the draw tape may be stretched or expanded to enable a user to dilate the opening and fold the periphery of the opening over the rim of the canister. The draw tape may then recover or constrict to grip about the rim of the receptacle to hold the bag to the canister. In one embodiment, the bag may include a pattern proximate the bag opening to allow the bag opening to be stretched over the rim of the canister.

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