Sca Hygiene Products Ab

G.d.m, Inc.

Anders Norder

Ralph Dovertie

Matteo Piantoni

Alberto Perego

Robert Perneborn

Henrik Carlén

Marcus Lehto

Luca Aiolfi

Patrik Hallberg

Sofia Richardson

Lisa Palmqvist

Henrik Carlen

A method for automatic preventive maintenance of a non-contact printing unit in a production line for absorbent articles such as diapers, sanitary napkins, panty liners, incontinence pads or similar is disclosed. The production line includes a plurality of production units including the non-contact printing unit. The method includes initiating automatic preventive cleaning of the non-contact printing unit upon production stop in the production line not caused by the non-contact printing unit. Also, a system arranged for initiating automatic preventive cleaning of a non-contact printing unit in a production line for absorbent articles is disclosed.

Method and system for automatic preventive maintenance of a non-contact printing unit

A method for synchronized positioning of a web for manufacturing products. The method includes feeding the web into a production apparatus at a first speed; processing in the production apparatus, with the web being fed forward at a second speed; and detection of each synchronization mark for positioning the respective motif in a predetermined position on each product. The method includes the following steps: generation of a reading of the actual value of a virtual master function upon the detection, which includes a cyclic clock where the number of cycles per product includes an integer; comparison between the actual value and the expected value of the virtual master function; and stretching of the web in response to any deviation between the actual value and the expected value, with the aim of minimizing the deviation.

Method and arrangement for synchronized positioning of at least one essentially continuous material web based on a virtual master function

A method for detection of a synchronizing mark () being used in synchronized positioning of at least one essentially continuous material web (), for manufacturing products () that have printed motifs () or similar processed elements, which material web () is intended to be divided into a nominal division length (L) and has synchronizing marks () with a periodicity (L), which method includes: detection of the respective synchronizing mark () for positioning the respective motif () in a predetermined position on the respective product (), which detection is carried out along a predetermined in the machine direction longitudinal section () of the material web (), and detection of the synchronizing mark () by distinguishing its color or color combination from colors or color combinations in the rest of said section (). An arrangement for such detection, and an absorbent product.

Method and arrangement for detection of a synchronizing mark being used in synchronized positioning of at least one essentially continuous material web

A method for producing diaper component parts () from strip material (), wherein the strip material () is fed continuously, by means of conveying means (), along a straight path (P) extending through a number of work stations () synchronized with one another; and wherein, along the path (P), the strip material () is secured to the conveying means () so that all points of the strip material () travel at the same speed.

Method for producing diaper component parts from strip material

Growing community of inventors

Lindome, Sweden

Anders Norder