公开(公告)号：US20240122768A1

公开(公告)日：2024-04-18

申请号：US18485467

申请日：2023-10-12

Applicant: GDM S.p.A

Inventor： Matteo PIANTONI ,  Alessandro ZAVALLONI ,  Paolo CARUANA

IPC: A61F13/15 ,  B65H43/04 ,  G05B19/418

CPC classification number: A61F13/15772 ,  A61F13/15739 ,  A61F13/15764 ,  B65H43/04 ,  G05B19/41875 ,  A61F2013/1578 ,  A61F2013/15796 ,  A61F2013/15853 ,  B65H2301/542 ,  B65H2553/42 ,  B65H2801/57

Abstract: A production line of absorbent sanitary articles and method of predictive detection of defects of absorbent sanitary articles, wherein it is provided to: detect current values of operating parameters which are indicative of the current operation of at least one production device adapted to perform respective production operations on the absorbent sanitary articles being processed along the production line; perform a comparison between the current values of the detected operating parameters and respective predetermined reference values; in the presence of at least one anomalous operating parameter that does not comply with the respective predetermined reference values, identify, among a plurality of possible malfunctioning causes of the line, at least one current malfunctioning cause responsible for the at least one anomalous operating parameter; and make a prediction of any defects in the absorbent sanitary articles being processed along the line starting from the at least one current malfunctioning cause identified.

公开(公告)号：US20230265588A1

公开(公告)日：2023-08-24

申请号：US18040229

申请日：2021-08-03

Applicant: GDM S.P.A.

Inventor： Paolo CARUANA ,  Francesco Giardini ,  Matteo PIANTONI ,  Marco ROSANI ,  Alessandro ZAVALLONI

IPC: D04H1/56 ,  D04H1/4291 ,  D04H1/70 ,  D04H1/407 ,  D01D5/098 ,  A24C5/46

CPC classification number: D04H1/565 ,  D04H1/4291 ,  D04H1/70 ,  D04H1/407 ,  D01D5/0985 ,  A24C5/465

Abstract: A method for making a composite web comprises the steps of



melt blowing a first flow of thermoplastic material including said first thermoplastic material towards at least one collecting suction surface moving in a feed direction;
dispensing a flow of particulate material including a particulate material towards the collecting suction surface in such a way as to intercept the first flow of thermoplastic material in an intercept zone; the first flow of thermoplastic material and the flow of particulate material intercept each other in the intercept zone at an intercept angle of between 1 and 90 sexagesimal degrees, preferably between 15 and 40 sexagesimal degrees.