SOFT NONWOVEN WEBS AND METHODS OF MAKING THE SAME

• Main Authors: David A. PALZEWICZ, Tom R. BELAU, Timothy D. FERGUSON, Daniel M. NUSSBAUM
• Format: Patent
• Language: English; Spanish
• Published: 12.03.2020
• Subjects: BANDAGES, DRESSINGS OR ABSORBENT PADS; BRAIDING; COTTON-WOOL; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HUMAN NECESSITIES; HYGIENE; KNITTING; LACE-MAKING; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL; MEDICAL OR VETERINARY SCIENCE; NON-WOVEN FABRICS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PROSTHESES; TEXTILES; TREATMENT OR PROTECTION OF EYES OR EARS; TRIMMINGS; WADDING

Soft point bonded nonwoven webs, and methods of making the same, are described that utilize a pattern of small, discrete bond points in a sequent pattern that together form macro-elements. The macro-elements are themselves positioned and aligned within a pattern such that mechanical stretching operations on the point bonded nonwoven webs yields soft and bulky fabrics but with reduced incidence of tearing or rupturing of the individual bond points.Soft point bonded nonwoven webs, and methods of making the same, are described that utilize a pattern of small, discrete bond points in a sequent pattern that together form macro-elements. The macro-elements are themselves positioned and aligned within a pattern such that mechanical stretching operations on the point bonded nonwoven webs yields soft and bulky fabrics but with reduced incidence of tearing or rupturing of the individual bond points. An interlock for an enclosure can include a primary door activator with an activator arm, a secondary door activator, and a rotatable arrangement that links the primary and secondary door activators. The activator arm can block a primary door of the enclosure from being closed when the activator arm is in an open configuration. The activator arm can be configured to rotate with the rotatable arrangement in a first direction towards the open configuration as the primary door is opened, and in a second direction away from the open configuration as the primary door is closed. The secondary door activador can be configured to engage the rotatable arrangement to prevent rotation of the rotatable arrangement when the secondary door is open, and to permit rotation of the rotatable arrangement when the secondary door is closed. Se describen tramas no tejidas unidas por puntos blandos y métodos para fabricarlas, que usan un patrón de puntos de unión pequeños y discretos en un patrón secuencial que juntos forman macroelementos. Los macroelementos están posicionados y alineados dentro de un patrón tal que las operaciones de estiramiento mecánico en las tramas no tejidas unidas por puntos producen telas suaves y voluminosas, pero con una incidencia reducida de desgarre o ruptura de los puntos de unión individuales.