Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: Methods of using computer based models for simulating the physical behavior of webs.

Abstract: 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.

Abstract: Methods of using computer based models for simulating the physical behavior of webs.

Abstract: Computer based methods for simulating rotational drag forces experienced by rotating objects.

Abstract: Localization of electrical device interfaces is disclosed. In one embodiment, a method is provided that comprises storing an embedded server in a location other than within the electrical device, and using the embedded server to present an interface for the electrical device to a user browser. In another embodiment, a system for supporting a browser-accessible interface for an electrical device is provided that comprises a computing device including a processing device and a memory, the memory including an embedded server that is configured to serve content pertinent to at least one of a status and a setting of the electrical device, and an electrical device including a memory that includes a reporting module that is configured to provide dynamic information about the electrical device to the embedded server of the computing device.

Abstract: An improved method for bonding webs. The method includes overlapping two webs, slitting the two webs, reoverlapping the two webs and bonding the two webs together. The steps of reoverlapping the two webs may be accomplished with a number of different types of devices including but not limited to: a bumpered roll, a notched roll, a crowned roll, a bowed roll, an out of plane roll, and variable speed rolls.

Abstract: The automatic registration control system of the present invention is a closed loop system including a driving mechanism for feeding a continuous web of disposable absorbent articles, such as diaper pads, toward a cutter. The cutter may separate completed pads from the web. A sensor is positioned along the manufacturing line, and preferably preceding the cutter, for detecting at least one preselected feature of each diaper pad and producing a detection signal when the feature passes by the sensor. A position resolver determines the angular position of the cutter at the moment when the preselected diaper feature is detected, and the average angular position is calculated from a predetermined number of cutter positions. The average cutter position is compared to and subtracted from a target cutter position to produce an error signal. The error signal is then converted into a control signal and supplied to a phase variator which adjusts the position of the cutter in response to the control signal.