Patent application number | Description | Published |
20100015273 | STRETCHING APPARATUS FOR WEB OF THERMOPLASTIC SYNTHETIC RESIN - A stretching apparatus for thermoplastic synthetic resin improved so as to ensure that a web can be easily stretched over its entire width. The stretching apparatus | 01-21-2010 |
20100065984 | METHOD FOR PRODUCING STRETCHABLE SHEET - A stretchable sheet having a large stretch amount is produced by increasing a drawing amount given to the nonwoven fabric. A method for producing the stretchable sheet from a nonwoven fabric containing a plurality of types of fibers, that is the nonwoven fabric having a longitudinal direction, a width direction and a thickness direction. The method includes a first drawing step of drawing the nonwoven fabric in the longitudinal direction by applying a tension in the longitudinal direction of the nonwoven fabric, and a second drawing step of drawing, in the longitudinal direction, the nonwoven fabric that has been drawn in the first drawing step with a plurality of teeth formed on outer circumferential faces of each of a pair of gear rolls, the drawing being performed by passing the nonwoven fabric through a gap between the gear rolls that rotate while the teeth are being engaged with one another. | 03-18-2010 |
20110042849 | METHOD OF MANUFACTURING STRETCHABLE SHEET - A method of producing a stretchable sheet which involves: passing a nonwoven fabric including a plurality of types of fibers through a gap between a pair of gear rolls and that rotate while a plurality of teeth and formed on an outer circumferential surface and of each of the pair of gear rolls and engage with one another; and drawing the nonwoven fabric in a circumferential direction of the gear rolls and by the teeth and. A circumferential velocity S of the gear rolls and is within a range of 50 to 300 m/min. A maximum value of distortion per unit time applied to the nonwoven fabric in the gap between the pair of gear rolls and is within a range of 5 to 100 sec | 02-24-2011 |
20130174965 | APPARTUS AND METHOD FOR ULTRASONIC PROCESSING OF A FIBROUS WEB - An apparatus and a method for ultrasonic processing improved so as to prevent a fibrous web from being disfigured due to the ultrasonic processing. In an apparatus to ultrasonically process a fibrous web running in a machine direction MD, a first mechanical element defined by one of an ultrasonic horn and an anvil and a second mechanical element defined by the other of the ultrasonic horn and the anvil are moved forward or backward in a direction crossing the machine direction MD so as to pass transversely across the fibrous web. | 07-11-2013 |
20140041783 | APPARATUS FOR MANUFACTURING ABSORBENT ARTICLE AND METHOD FOR MANUFACTURING ABSORBENT ARTICLE - An apparatus for manufacturing an absorbent article includes a guide member that guides an elastic member fed on a web configuring a component of the absorbent article and being conveyed in a continuous state. The guide member includes: an arm member having a tip portion that is a feeding position of the elastic member to the web, and a base portion separated from the tip portion; a first driving member that swings the arm member about the base portion of the arm member as a rotational axis; and a second driving member that performs a back and forth movement of the arm member and the first driving member in a first direction in which the tip portion is close to a contact point where the elastic member is in contact with the web, and a second direction in which the tip portion is separated from the contact point. | 02-13-2014 |
20140054128 | APPARATUS FOR MANUFACTURING ABSORBENT ARTICLE AND METHOD FOR MANUFACTURING ABSORBENT ARTICLE - An apparatus for manufacturing an absorbent article includes a guide member that guides an elastic member fed on a web configuring a component of the absorbent article and being conveyed in a continuous state. The guide member includes: an arm member having a tip portion that is a feeding position of the elastic member to the web, and a base portion separated from the tip portion; a first drive member that swings the arm member about the base portion of the arm member as a rotational axis; and a second drive member that performs a back and forth movement of the arm member and the first drive member along a cross direction that crosses a conveyance direction in which the web is conveyed. | 02-27-2014 |