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    • 5. 发明申请
    • PROCESS AND APPARATUS FOR MAKING CHANNELED ABSORBENT ARTICLES
    • US20220160550A1
    • 2022-05-26
    • US17440828
    • 2020-03-20
    • ONTEX BVONTEX GROUP NV
    • Thomas HEEGEAinas WEBERChristel MAILINGERManfred BREUDetlef VOLLRATHAlissa IDELSONChristoph WAGNER
    • A61F13/475A61F13/15A61F13/42A61F13/533A61F13/536A61L15/28A61L15/42A61L15/60D04H1/4291D04H1/54D04H3/007D04H3/14
    • A method for making an absorbent article comprising an absorbent core comprising one or more channels, the method comprising the steps of: i. providing a first endless moving surface comprising a plurality of molds, each mold comprising a non-porous insert therein, typically said insert having the inverse shape of said channel(s), wherein the molds are in fluid communication with an under-pressure source except for said insert; ii. feeding a first nonwoven web to said first endless moving surface and over one or more said molds; iii. depositing an absorbent material, comprising cellulose fibers and/or superabsorbent polymer particles, over at least a portion of said nonwoven web; iv. removing said absorbent material from areas of the nonwoven web corresponding to said insert; v. applying a second nonwoven web directly or indirectly over the absorbent material, or folding said first nonwoven web, such to sandwich said absorbent material between upper and lower layers of said nonwoven web(s); vi. joining said upper and lower layers together at least in the areas of the nonwoven web(s) corresponding to the insert to form an absorbent core having one or more channels substantially free of absorbent material; vii. optionally joining an acquisition distribution layer to said absorbent core, typically a skin facing surface of said upper layer; viii. optionally laminating said absorbent core and acquisition distribution layer between a liquid pervious topsheet and a liquid impervious backsheet; wherein step vi. comprises the step of selectively applying a first pressure onto the absorbent core, preferably only, in a central portion thereof and a second pressure, preferably only, along peripheral longitudinal side edges thereof miming opposite and parallel to each other and being outboard of said central portion, said central portion corresponding at least to a region of the core comprising said channel(s), and wherein said first and second pressures are successively applied along a machine direction (MD).
    • 8. 发明公开
    • SYSTEMS AND METHODS FOR DETECTING AND PROCESSING ABSORBENT ARTICLE DATA IN A PRODUCTION LINE
    • US20240180756A1
    • 2024-06-06
    • US18287883
    • 2022-04-20
    • ONTEX BVONTEX GROUP NV
    • Ainas WEBERThomas HEEGEAntonio TORRES SAAVEDRA
    • A61F13/15A61F13/84G05B13/02
    • A61F13/15772G05B13/027A61F2013/1578A61F2013/8491
    • A method for inspecting disposable absorbent articles, the method comprising: providing a controller comprising an inspection algorithm with a convolutional neural network; providing a sensor, preferably selected from the group consisting of an optical sensor, thermal sensor, and combinations thereof; the sensor being in data communication with the controller; providing a reference database, wherein the reference database comprises a plurality of pre-processed images of disposable absorbent articles and/or components thereof that have been labeled with one or more of: a feature or element of the article and/or component thereof; a non-acceptable defect within a feature or element of the article and/or component thereof; an acceptable defect within a feature or element of the article and/or component thereof; an acceptable faultless feature or element of the article and/or component thereof; and combinations thereof; and the method comprising the steps of: training the convolutional neural network preferably through a plurality of iterations or epochs: optionally validating the training, wherein the training step is repeated until a mean average precision score (MAP) of at least 0.9 is attained according to the formula (I) where Q is the number of queries: advancing one or more substrates through a converting process along a machine direction to form an array of absorbent articles; creating a plurality of images of said array of absorbent articles with the sensor; transmitting the images from the sensor to the controller; determining at least one of the properties for the labeled component with the inspection algorithm; cutting the substrate into discrete articles; and based on the determination of the least one of the properties for the labeled component, executing a control action, wherein the control action is selected from the group of automatic rejection of one or more articles, automatic machine-setting adjustment, a warning signal for machine maintenance scheduling. and a machine stop command.







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