Method of making menstrual napkins

Claim 3

The method of claim 1 including disposing a thin, flexible fluid impermeable membrane adjacent one face of an exterior ply of said web prior to said cutting step and bonding said membrane to said exterior ply by said injecting and cooling steps.

Claim 4

A process for making multiple ply tissue paper absorptive menstural napkins comprising: Combining continously multiple plies of thin tissue paper in confronting plural layers to form a first wide web, cutting simultaneously through all said multiple plies of said first web to provide multiple first napkins each having plural, nesting planar absorptive plies and forming in each of said first napkins two apertures each said aperture having associated therewith a single leaf detent of plural substantially coaxial layers, each of said first napkins having said two apertures disposed at opposite ends thereof; combining continuously additional multiple plies of thin paper sheets into confronting planar layers to form a second wide web simultaneously cutting through all plies of said second web to provide multiple second napkins having plural nesting planar absorptive plies and simultaneously forming in each of said second napkins two apertures each having associated therewith a single leaf-detent having plural substantially coxial confronting tissue layers; disposing at least one of said first napkins in confronting relationship with one of said second napkins with said apertures coinciding to provide a multiple napkin pair; simultaneously injecting of hot melt adhesive into each one of the afore said apertures of said napkin pair and cooling said adhesive in said apertures to provide plural solid plugs of adhesive, said adhesive being adapted to be tack free at human body temperature, said solid plugs of adhesive bonding said multiple ply napkin pairs Together.

Claim 5

A process for making multiple ply tissue paper absorptive menstural napkins comprising: Combining continously multiple plies of thin tissue paper in confronting plural layers to form a first wide web, cutting simultaneously through all said multiple plies of said first web to provide multiple first napkins each having plural, nesting planar absorptive plies and forming in each of said first napkins two apertures each said aperture having associated therewith a single leaf detent of plural substantially coaxial layers, each of said first napkins having said two apertures disposed at opposite ends thereof; combining continuously additional multiple plies of thin paper sheets into confronting planar layers to form a second wide web simultaneously cutting through all plies of said second web to provide multiple second napkins having plural nesting planar absorptive plies and simultaneously forming in each of said second napkins two apertures each having associated therewith a single leaf-detent having plural substantially coxial confronting tissue layers; disposing at least one of said first napkins in confronting relationship with one of said second napkins with said apertures coinciding to provide a multiple napkin pair; simultaneously injecting of hot melt adhesive into each one of the afore said apertures of said napkin pair and cooling said adhesive in said apertures to provide plural solid plugs of adhesive, said adhesive being adapted to be tack free at human body temperature, said solid plugs of adhesive bonding said multiple ply napkin pairs Together.

Claim 6

The method of claim 3 including disposing a thin, flexible fluid impermeable membrane in confronting planar relationship with an exterior ply of one said wide webs prior to said cutting steps, said injecting and cooling steps including bonding of said membrane to said exterior ply.