Roll With a Means for Holding Windings

Abstract

The invention relates to a roll including a sheet (F) made of a flexible material, such as an absorbent fibrous material, formed by winding the sheet around a winding axis while creating a hole in the center and that presents a first set ( 10 ) of windings bonded to each other. The roll is characterized by the fact that it includes a second set ( 20 ) of windings that are not bonded to each other, between the center hole and the first set ( 10 ). The roll, according to the invention, holds up well throughout its use and is easily placed into service, in particular in the case of a roll of the center pull type.

1 - 13 . (canceled) 
     
     
         14 . A roll comprising a sheet of flexible material wound around a winding axis with a hole in a center of the roll and including a first set of windings bonded to each other and a second set of windings not bonded to each other wherein the second set is positioned between the center hole and the first set. 
     
     
         15 . The roll according to  claim 14 , wherein the flexible material is an absorbent fibrous material. 
     
     
         16 . The roll according to  claim 15 , wherein the second set comprises windings in a number greater than or equal to 2. 
     
     
         17 . The roll according to  claim 14 , wherein the first set comprises windings in a number greater than or equal to 2. 
     
     
         18 . The roll according to  claim 14 , further comprising a plurality of the second set which are noncontiguous and separated from each other by non bonded windings. 
     
     
         19 . The roll according to  claim 14 , wherein the first set incorporates a bonding agent. 
     
     
         20 . The roll according to  claim 19 , wherein the bonding agent as applied to a winding of the roll can vary in application according to at least one parameter including nature of the bonding agent, quantity of the bonding agent, position of the bonding agent, or surface or shape covered by the bonding agent. 
     
     
         21 . The roll according to  claim 19 , wherein the bonding agent is a liquid substance. 
     
     
         22 . The roll according to  claim 21 , wherein the liquid substance is chosen from the group consisting of water or an aqueous adhesive. 
     
     
         23 . The roll according to  claim 14 , wherein the roll further comprises tight winding to define a dense roll. 
     
     
         24 . The roll according to  claim 14 , wherein the roll allows unwinding of the sheet through the center of the roll. 
     
     
         25 . The roll according to  claim 24 , wherein a free end of a first winding from the hole in the center extends from the side of the roll. 
     
     
         26 . The roll according to  claim 14 , wherein the windings in the first set are bonded together by a bonding means permitting separation of one winding from another upon unwinding. 
     
     
         27 . The roll according to  claim 26 , wherein the bonding means comprises water. 
     
     
         28 . The roll according to  claim 26 , wherein the bonding means comprises an aqueous adhesive substance. 
     
     
         29 . The roll according to  claim 14 , wherein the roll allows unwinding of the sheet tangentially from the roll. 
     
     
         30 . The roll according to  claim 14 , wherein the windings in the first set are bonded together by a bonding means permitting separation of one winding from another upon unwinding. 
     
     
         31 . The roll according to  claim 30 , wherein the bonding means comprises water. 
     
     
         32 . The roll according to  claim 30 , wherein the bonding means comprises a watery adhesive substance. 
     
     
         33 . The process of manufacturing a roll according to  claim 14 , comprising the steps of winding the sheet around a winding axis and applying a bonding agent to bond the windings of the first set to each other, and thereafter forming a predetermined number of windings of the second set. 
     
     
         34 . The process of manufacturing a roll according to  claim 33 , wherein the flexible material is an absorbent fibrous material. 
     
     
         35 . The process according to  claim 34 , wherein the step of applying of the bonding agent comprises projecting a liquid substance onto the sheet. 
     
     
         36 . The process according to  claim 34 , wherein the roll allows unwinding of the sheet through the center of the roll. 
     
     
         37 . The process according to  claim 36 , comprising the step of withdrawing a free end of a first winding from the hole in the center and positioning it so that it extends from the side of the roll. 
     
     
         38 . The process according to  claim 37 , wherein the free end of the first winding is withdrawn from the hole in the center and positioned it so that it extends from the side of the roll by means of a perforate tube to which vacuum is applied. 
     
     
         39 . The process according to  claim 35 , wherein a plurality of the second set are noncontiguous and separated from each other by non-bonded windings. 
     
     
         40 . The process of manufacturing a roll according to  claim 35 , where the second set comprises windings in a number greater than or equal to 2. 
     
     
         41 . The process of manufacturing a roll according to  claim 14 , comprising winding the sheet around a winding axis and applying a bonding agent to non-permanently bond the windings of the first set to each other, and forming a predetermined number of windings of the second set. 
     
     
         42 . The process according to  claim 41 , wherein the step of applying of the bonding agent comprises projecting a liquid substance onto the sheet. 
     
     
         43 . The process of manufacturing a roll according to  claim 42 , wherein the flexible material is an absorbent fibrous material. 
     
     
         44 . The process according to  claim 43 , wherein the roll allows unwinding of the sheet through the center of the roll. 
     
     
         45 . The process according to  claim 44 , comprising the step of withdrawing a free end of a first winding from the hole in the center and positioning it so that it extends from the side of the roll. 
     
     
         46 . The process according to  claim 45 , wherein the free end of the first winding is withdrawn from the hole in the center and positioned it so that it extends from the side of the roll by means of a perforate tube to which vacuum is applied. 
     
     
         47 . The process according to  claim 46 , wherein a plurality of the second set are noncontiguous and separated from each other by non-bonded windings.