02-06-2022 дата публикации
Номер: US20220168153A1
Принадлежит:
Disclosed is a process for making a composite elastic tape, elastically extendable along its longitudinal direction, including: providing a tape of elastic material having a main elongation direction; providing first and second tapes of fibrous and porous material; cutting the tape of elastic material into strips along the direction; tensioning the strips of elastic material along the direction to elastically lengthen and distance them; arranging the first and the second tape of fibrous and porous material respectively above and below the tensioned, elastically elongated and spaced strips; and fixing the strips while being tensioned, elastically elongated and spaced, between the first and the second tape of fibrous and porous material in an undeformed condition, to make a composite elastic material shaped like a tape. Also disclosed is the composite elastic tape thus obtained, suitable for the waist region of a diaper as well as other products incorporating such tape. 1. Process for making a composite elastic tape comprising the steps of:providing a tape of elastic material having a main elongation direction;providing a first and a second tape of fibrous and porous material, of the process comprising:cutting said tape of elastic material into strips along said direction;tensioning said strips of elastic material along said direction so as to elastically lengthen them and distance them;arranging said first and said second tape of fibrous and porous material respectively above and below said tensioned, elastically elongated and spaced strips;fixing said strips while being tensioned, elastically elongated and spaced, between said first and said second tape of fibrous and porous material in an undeformed condition, to make a composite elastic material shaped like a tape.2. The process for making a composite elastic tape according to claim 1 , wherein said step of cutting said tape of elastic material comprises the step of cutting strips with a width of between 5 mm and ...
Подробнее
