METHOD FOR MANUFACTURING ABSORBENT ARTICLE

摘要

A method for manufacturing an absorbent article, the method including: while a lower bandlike member is transported in a transport direction, a process in which a cutting position is determined and an adhesion area is formed on each side of the cutting position of the lower bandlike member in the transport direction; a process in which leg elastic members are placed so that a part of each of the leg elastic members overlaps the adhesion area, the leg elastic members being stretched in a direction having a component parallel to the transport direction; a process in which an upper bandlike member is stacked on and adheres to the lower bandlike member and the leg elastic member on the adhesion area; a process in which the lower bandlike member and the upper bandlike member are folded on the center in the intersecting direction; a process in which a welded section on which the lower bandlike member and the upper bandlike member are to be welded to each other is formed on each side of the cutting position in the transport direction; a process in which and the lower bandlike member, the upper bandlike member and the leg elastic members are cut together on the cutting position, a lower exterior member and an upper exterior member which are shaped in the form of underpants are cut and separated, the leg elastic members which are stretched contract towards the adhesion area from positions at which the leg elastic members are cut, the contraction being performed while the leg elastic members shifting relative to the lower exterior member and the upper exterior member.

主权项

1. A method for continuously manufacturing an absorbent article,
the absorbent article being a pull-on absorbent article
that has a longitudinal direction and a transverse direction intersecting the longitudinal direction, andthat includes
a lower exterior member located on a side towards a wearer's garment,an upper exterior member stacked on the lower exterior member from a side towards a wearer's skin,an absorbent main body stacked on the upper exterior member from the side towards a wearer's skin, for absorbing excrement, the method, comprising: while a lower bandlike member and an upper bandlike member are transported in a transport direction that is along the transverse direction,
the lower bandlike member including the lower exterior members that continue in a band-like manner in the transverse direction,the upper bandlike member including the upper exterior members that continues in a band-like manner in the transverse direction, a process in which, when the lower exterior member and the upper exterior member are cut and separated from the lower bandlike member and the upper bandlike member,
a cutting position is determined, andan adhesion area is formed by putting adhesive on each side of the cutting position in the transport direction, of at least either one of the lower bandlike member and the upper bandlike member,
the cutting position being to serve as end sections of the lower exterior member and the upper exterior member in the transverse direction; a process in which
a plurality of leg elastic members are placed on at least either one of the lower bandlike member and the upper bandlike member so that a part of each of the leg elastic members overlaps the adhesion area,
the leg elastic members being stretched in a direction having a component parallel to the transport direction,the leg elastic members being provided along a leg opening of the pull-on absorbent article; a process in which
the lower bandlike member and the upper bandlike member are stacked such that the leg elastic members being sandwiched between the lower and upper bandlike members, andthe upper bandlike member adheres to the lower bandlike member and the leg elastic members on the adhesion area; a process in which
the lower bandlike member and the upper bandlike member are folded on a center portion in an intersecting direction so that the upper bandlike member is located inside the lower bandlike member,
the intersecting direction intersecting the transport direction; a process in which
a welded section on which the folded lower bandlike member and the folded upper bandlike member are to be welded to each other is formed on each side of the cutting position in the transport direction; a process in which
the lower bandlike member, the upper bandlike member and the leg elastic members are cut together on the cutting position,the lower exterior member and the upper exterior member which are shaped in the form of underpants are cut and separated from the lower bandlike member and the upper bandlike member,at least some of the plurality of leg elastic members that are stretched in the direction having the component parallel to the transport direction contract in the transport direction towards the adhesion area from positions at which the at least some of the plurality of leg elastic members are cut,
the contraction being performed while the at least some of the plurality of leg elastic members shifting relative to the lower exterior member and the upper exterior member, wherein the heat-welded section does not overlap the adhesion area within at least a partial area along the transport direction, adhesive is not applied on an area in the transport direction between the cutting position and the adhesion area, a plurality of the heat-welded sections are formed at intervals along the intersecting direction, a distance between two heat-welded sections that are formed adjacent in the intersecting direction is larger than a diameter of the leg elastic member, a length of each of the two heat-welded sections in the intersecting direction is shorter than half a distance between transverse end sections of two leg elastic members that are adjacent in the intersecting direction, a plurality of the adhesion areas are formed being aligned in the transport direction along the position on which the leg elastic members are placed, the plurality of the adhesion areas are formed at an interval so that a pair of the adhesion areas being adjacent in the transport direction overlap each other in the intersecting direction,
the interval being smaller than widths of the adhesion areas in the transport direction.