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    • 3. 发明申请
    • Paper Bag and Method for Producing a Paper Bag
    • 纸袋和纸袋生产方法
    • US20150321439A1
    • 2015-11-12
    • US14705488
    • 2015-05-06
    • Mondi AG
    • Uwe VogelskampHans-Joachim Wichmann
    • B31F1/07B65D30/00B65D33/00
    • B31F1/07B31B70/88B31F2201/0715B31F2201/0725B31F2201/0738B31F2201/0758B65D31/00B65D33/004Y10T428/1307
    • In the case of a paper bag having a bag wall (1), which separates an inner bag space from an outer space and has at least one visible side (1a) visible from the outer space and an invisible inner side (1b) of a paper layer which is provided with an embossment (9) in the form of at least one symbol, good visibility of the embossment (9) is combined with gentle treatment of the paper fibers of the paper layer by virtue of the fact that the embossment (9) the embossment (9) is embodied in the form of a surface (10) which is elevated with respect to a plane (12) adjacent to the embossment (9) on the visible side (1a) and, corresponding thereto, as a depression which is present with respect to a plane of the inner side adjacent to the embossment (9) on the inner side (1b), that the elevated surface (10) on the visible side (1a) is connected to the plane (12) of the visible side (1a) by means of a connecting wall (11), and that the transition of the elevated surface (10) to the connecting wall (11) and the transition of the connecting wall (11) to the plane (12) of the visible side (1a) have a rounded form, and that the thickness of the paper layer in the region of the embossment (9) is at most 20% smaller than the thickness of the paper layer in the plane (12) adjacent to the embossment (9). An embossment (9) of this type is preferably produced by virtue of the fact that the embossment (9) is formed by guiding the bag wall (1) between an embossing tool (1) and a pressure-exerting tool (3) provided with an elastically compliant surface (5), the embossing tool (2) having the at least one symbol (4) in a depressed formation, such that the paper layer is pressed into the symbol (4) of the embossing tool (1) into the pressure-exerting tool (3) during the embossing operation.
    • 在具有袋壁(1)的纸袋的情况下,其将内袋空间与外部空间分离并且具有从外部空间可见的至少一个可见侧(1a)和不可见的内侧(1b), 设置有至少一个符号形式的压花(9)的纸层,通过与纸层的纸纤维的温和处理结合,凸起(9)的良好的可视性由于浮雕( 9)压花(9)以相对于可见侧(1a)上与压花(9)相邻的平面(12)升高的表面(10)的形式实施,并且对应于其形成为 相对于在内侧(1b)上与压花(9)相邻的内侧的平面存在的可见侧(1a)上的升高表面(10)连接到平面(12)的凹陷, 的可见侧(1a),并且升高的表面(10)到连接的壁(11)的过渡 11(11)和连接壁(11)到可见侧(1a)的平面(12)的过渡具有圆形,并且压花(9)区域中的纸层的厚度为 比与压花(9)相邻的平面(12)中的纸层的厚度小至多20%。 这种类型的浮雕(9)优选地是由于压花(9)通过在压印工具(1)和施加压力工具(3)之间引导袋壁(1)而形成的, 弹性柔顺表面(5),所述压花工具(2)在凹陷结构中具有至少一个符号(4),使得所述纸层被压入所述压花工具(1)的符号(4)中, 在压花操作期间施加压力的工具(3)。