Method for production of diaper pants

Abstract

Method for producing disposable diaper-pants having openable and resealable side panels. Absorption bodies are applied on a continuous web of inner or outer coversheet material so that front portions and rear portions of adjacent diaper-pants blanks in a web are directed toward each other. A continuous web of outer or inner coversheet material is applied to and secured to the web with absorption bodies. Separate side panels connected to each other by a detachable and resealable connection are secured to side portions of the adjacent front portions or rear portions of the diaper pants. Each diaper-pants blank with side panels is cut from the web and folded about a transverse axis in the crotch with the front and rear edges lying against each other. The side panels of each blank are folded toward and secured to side portions of the rear or front portion which have no side panel.

What is claimed is:  
     
         1 . A method for production of disposable diaper pants or of a sanitary panty of the disposable type with openable and resealable side panels, the method comprising: 
 forming a web of interconnected diaper pants blanks, each diaper pants blank having an absorption body enclosed between an inner cover sheet of liquid-permeable material and an outer cover sheet of liquid-impermeable material and having a front portion and a rear portion and an intermediate crotch portion, by applying a row of absorption bodies being applied on a continuous web of inner or outer cover sheet material so that the front portions and the rear portions of adjacent diaper pants blanks in the web of interconnected diaper pants blanks are directed toward each other, thereafter applying a continuous web of outer or inner cover sheet material to the web with absorption bodies and secured to it in those parts thereof which lie outside the absorption bodies;    securing separate side panels connected to each other to the side portions of each of the adjacent front portions or each of the adjacent rear portions of the diaper pants blanks, each side panel comprising two parts which are connected to each other by means of a detachable and resealable connection;    cutting out individual diaper pants blanks having side panels from the web of interconnected diaper pants blanks;    folding each diaper pants blank about a transverse axis in the crotch portion so that the front and rear edges of the blank lie against each other; and    thereafter folding the side panels of each diaper pants blank in toward those side portions of either the rear portion or front portion which have no side panel and are secured thereto.    
     
     
         2 . The method according to  claim 1 , wherein the side panels are secured to the outer or inner cover sheet of the diaper pants blanks.  
     
     
         3 . The method according to  claim 1 , wherein the side panels are placed between the outer and inner cover sheets of the web of connected diaper pants blanks and are secured to both of these sheets.  
     
     
         4 . The method according to  claim 1 , wherein the side panels at least partially comprise an elastic material.  
     
     
         5 . The method according to  claim 1 , wherein the detachable and resealable connection, which connects the two parts of each side panel to each other, is a childproof connection.  
     
     
         6 . The method according to  claim 1 , wherein in addition to the detachable and resealable connection, each side panel also comprises a second childproof connection which is detachable and which is destroyed when the side panel is opened for the first time.  
     
     
         7 . A disposable diaper pants or a sanitary panty of the disposable type with a front portion, a rear portion and an intermediate crotch portion, the diaper pants or sanitary panty comprising: 
 an absorption body enclosed between an inner cover sheet of liquid-permeable material and an outer cover sheet of liquid-tight material; and    separate side panels which, on both sides of the absorption body, extend outside the inner and outer cover sheets and connect the front and rear portions of the diaper pants or sanitary panty to each other, so that the diaper pants or sanitary panty acquire a pants-like configuration with a waist opening and two leg openings,    each of the side panels being elastic and comprising two parts which are connected to each other by means of a detachable and resealable connection member.    
     
     
         8 . The diaper pants or sanitary panty according to  claim 7 , wherein the detachable and resealable connection comprises a childproof connection member.  
     
     
         9 . The diaper pants or sanitary panty according to  claim 7 , wherein in addition to the detachable and resealable connection, each side panel also comprises a second childproof connection, which is detachable and is destroyed upon opening the side panel for the first time.  
     
     
         10 . The diaper pants or sanitary panty according to  claim 7 , wherein the elastic side panels comprise parts of nonelastic material in those sections to which parts of the detachable and resealable connection are secured.  
     
     
         11 . The diaper pants or sanitary panty according to  claim 8 , wherein the force needed to open the childproof connection is greater than 4 N.  
     
     
         12 . The diaper pants or sanitary panty according to  claim 7 , wherein an overlap of the two parts of each side panel which are connected to each other by means of a detachable and resealable connection member protrudes beyond the connection member and forms a grip tab with an extent of 3-7 mm.  
     
     
         13 . The diaper pants or sanitary panty according to  claim 8 , wherein the force needed to open the childproof connection is greater than 6N.  
     
     
         14 . The diaper pants or sanitary panty according to  claim 8 , wherein the force needed to open the childproof connection is greater than 8N.  
     
     
         15 . The diaper pants or sanitary panty according to  claim 8 , wherein the force needed to open the childproof connection is greater than 10N and less than 20N.  
     
     
         16 . The diaper pants or sanitary panty according to  claim 8 , wherein the force needed to open the childproof connection is about 15N.  
     
     
         17 . The diaper pants or sanitary panty according to  claim 7 , wherein an overlap of the two parts of each side panel which are connected to each other by means of a detachable and resealable connection member protrudes beyond the connection member and forms a grip tab with an extent of 4-6 mm.