摘要:
A tampon comprises a compacted tampon blank, which in turn is formed by winding a liquid-permeable strip (23) and a string (20) of absorbent material placed thereon to a roll and inserting strip-parts (30, 31) which project from the sides of the string, inwardly of the innermost turn or winding of the roll. In the process of manufacturing the tampon, the strip (23) carrying the string can be wound around a first, tubular mandrel (26), and one strip-part (30) can be inserted into the mandrel through one open mandrel-end located adjacent the inner edge of the strip-part. A second tubular mandrel (32) is then inserted through the open end of the first mandrel and the first mandrel then withdrawn. With the second mandrel surrounded by the first, inserted strip-part (30) and located with an open end adjacent the inner edge of the other strip-part (31), the other strip-part is inserted into the second mandrel (32), which is then withdrawn from the thus formed tampon blank, which is thereafter compacted or compressed.
摘要:
A digital tampon (20) for feminine hygiene, having a round dome (33) and a recovery tape (24), consists of a blank which is shaped by winding up a length of continuous random fibre web and which is pressed to produce a preform having a fibre core, longitudinal ribs and longitudinal grooves. The longitudinal ribs are subsequently lightly pressed to the final shape of the tampon (20; 28). The preform, before being pressed to the final shape of the tampon (20), is shaped as a result of the separate, but simultaneous radial pressing of directly adjacent sectors of its entire circumferential surface to form a longitudinal groove and a longitudinal rib respectively on each sector of the circumferential surface. The fibre material is pressed radially to a lesser extent in the region of the end (22) provided with the recovery tape (24). The invention also relates to an apparatus for producing the tampon.
摘要:
An environmentally-friendly tampon assembly of the type which includes an inner sleeve (10), an outer sleeve (14) and an absorbent pledget (52) has inner and outer sleeves which are fabricated from a biodegradable, flushable material such as paper. The outer sleeve has an inwardly extending tang (48) for preventing movement of the pledget during retraction of the inner sleeve. The tang is also formed of biodegradable material, and may be formed of material which is from the same blank out of which the outer sleeve was formed. Six different methods of forming the outer sleeve and tang are disclosed.
摘要:
Tampon, especially for feminine hygiene, formed from an approximately cylindrical blank which is shaped by winding up a portion of length of tape-shaped nonwoven material, and the circumferential surface of which is pressed radially relative to the longitudinal mid-axis of the blank over an even number of at least 6 portions mutually adjacent in the circumferential direction of the winding blank, characterized in that only narrow strip-shaped portions of the circumferential surface of the winding blank, which are arranged at equal angular distances from one another, are pressed to produce a preform which, as seen in cross-section, consists of a central approximately circular fibre core (16) of high compression and buckling strength and of longitudinal ribs (17) of softer fibre structure and with a coarser capillary structure which extend radially outwards from the fibre core and which are separated from one another by outwardly open longitudinal grooves (18), and in that, accordingly, only the soft longitudinal ribs of the preform have been exposed to a low uniform pressure, radial relative to the longitudinal mid-axis of the preform, in such a way that the outer ends of the longitudinal ribs form a soft essentially smoothly cylindrical surface of smaller diameter, with the coarser capillary structure corresponding to the final form of the tampon being maintained (10).
摘要:
A transfer device (11) is arranged between a preforming device and a pressing device for pads (17). The long parallel webs of L-shaped pressing jaws (12, 13) have a gag corresponding to the diameter of the pad (17). The short webs of the pressing jaws are aligned with the other jaws. The width of the pressing jaws corresponds at least to the length of the pad (17) and of the drawback band. The transfer device (11) is movable according to a reciprocating motion, perpendicularly to the pressing jaws (12, 13); it has a conduit corresponding to the pressing device in an open position, as well as a gripping channel corresponding to the pressing device in a closed position. A pusher (24) aligned with the transport channel (21) and another pusher (27) aligned with a gripping channel and with the injection channel are connected to the transfer device (11). A cylindrical pusher (26) is arranged behind the pressing device. It may move in the pressing device in a closed position to eject the pad (17) outside the pressing device and put it in the gripping channel.
摘要:
In a tampon having a body of an absorbent material, the body has at least one zone in which expansion and/or absorption by the body of the tampon is limited.