A machine for making absorbent sanitary articles which includes an absorbent pad in turn including one or more absorbent materials; the machine includes a line for feeding at least one continuous web of impermeable material and at least one unit for forming and applying a succession of absorbent pads along the continuous web of impermeable material and a device for detecting at least one between the weight, density profile (or weight profile) parameters of at least one of the absorbent materials defining the absorbent pad; the detecting device including at least one microwave resonator.

A process and an apparatus for producing hygienic absorbent articles provided with at least one refastenable side seam from a chain of articles being formed having a first elastic sheet and a second elastic sheet, wherein the process and the apparatus are configured to perform operations on one or both of the elastic sheets in a cross direction, that is, with the elastic sheets parallel to the machine direction.

The present disclosure relates to folding methods and apparatuses that operate to fold an advancing substrate in the cross direction along a central region to bring a second end region into a facing relationship with a first end region. In some embodiments, the second end region of the advancing substrate is folded around a folding axis 180 to bring the second end region into a facing relationship with the first end region. The folding axis may also be defined by an arc extending in the machine direction MD, wherein the second end region of the advancing substrate is helically folded toward the inside of the arc. A folding apparatus including a curved or arc-shaped folding axis may also be configured such the first and second web paths have substantially equal lengths.

Systems and processes herein may be configured to correlate manufacturing parameters and performance feedback parameters with individual absorbent articles manufactured by a converting apparatus. Embodiments of the systems herein may include inspection sensors configured to inspect substrates and/or component parts advancing along the converting line and communicate inspection parameters to a controller and historian. The systems may also include process sensors configured to monitor equipment on the converting line and communicate process parameters to the controller and historian. The systems herein may also be adapted to receive performance feedback parameters based on the packaged absorbent articles. The systems may correlate inspection parameters, process parameters, and/or performance feedback parameters with individual absorbent articles produced on the converting line. The controller may also be configured to perform various functions based on the performance feedback parameters.

The present disclosure relates to manufacturing elastomeric laminates that may include a first substrate, a second substrate, and an elastic material located between the first substrate and second substrate. Methods and apparatuses may be configured to automatically isolate elastic strands that may break during the assembly process. As discussed in more detail below, the apparatuses may include a snare member extending adjacent to and across a travel path of elastic materials in a converting process. Thus, during the manufacture process, stretched elastics strands may advance past the snare member without contacting the outer circumferential surface of the snare member before being joined with a substrate. In the event that an elastic strand breaks, an upstream end portion of the elastic strand may retract back toward the snare member, wherein the upstream end portion wraps partially or completely around the outer circumferential surface of the snare member.

The present disclosure relates to taped and pant articles comprising substantially identical chassis.

A machine for making absorbent sanitary articles, includes at least one cutting unit configured to divide a continuous web into segments intended for manufacturing an absorbent sanitary article; the anvil member see includes a drum, rotating about a respective axis of rotation, for retaining the continuous web and the segments obtained therefrom; the cutting member includes a first cutting roller and a second cutting roller, both acting in conjunction with the drum of the anvil member and each rotating about a respective axis of rotation.

A method is presented of forming protrusions in a portion of a substrate. The method may include providing a first device comprising an outer surface; providing a second device including a source of vibration energy; forming a nip between the source of vibration energy and the outer surface; conveying the substrate through the nip; forming the protrusions in the portion of the substrate in the nip using the source of vibration energy; and inspecting one or more characteristics of the substrate using a vision system.

A guiding device of an apparatus for producing sanitary articles for applying at least one thread onto a substrate intended for producing sanitary articles, wherein said guiding device is able to guide the thread quickly, accurately, and stably without being subject to wear and contamination problems, while ensuring reduced energy consumption. The present invention also relates to a method for applying a thread onto a substrate intended to produce sanitary articles.

A sensor system for detecting a property of or within an absorbent article. The system may comprise a first sensor and a first transmitter. The sensor may be disposed in or on the absorbent article. The sensor may have a first status and may be capable of changing to a second status. The first transmitter may be capable of sensing a change in status of the sensor from the first status to the second status. The first transmitter may be capable of checking the status of the sensor noncontinuously. The first transmitter may programmed to check the status of the first sensor at least every 5 minutes but not longer than every 2 hours.