Roll of paperband

Abstract

Roll of paperband usable in paper web cutting and turn-up systems or in baling includes an elongate multi-ply board having a center portion and side portions, each having an inside and outside edge portions and the inside edge portion being defined by a longitudinal first groove. Each side portion is folded to dispose same in contact with center portion. The paperband includes upper and lower transverse undulations to enable the board to be formed into a roll of paperband without materially affecting its tensile strength. The side edge portions may be located closely adjacent each other without any overlap therebetween so that a longitudinal line of weakness is formed therebetween or may overlap and render weakened edge portions. An adhesive coats the outer surface thereof when the paperband is used for baling.

1 . A roll of paperband adaptable for use in paper web cutting and tun-up systems or for use in baling, said paperband comprising: 
 an elongate multi-ply board having upper and lower surfaces, and a center portion and spaced reduced side portions, each said side portion having an inside edge portion and an outside edge portion, each said inside edge portion being defined by an elongate longitudinal first groove between said center portion and respective said side portion, each said side portion being folded about respective said groove to dispose each said side portion in contact with an adjacent portion of said center portion, said side portions being located generally medially of said center portion, said paperband including transverse undulations to enable said multi-ply board to be formed into a roll or paperband without materially affecting its tensile strength.    
   
   
       2 . The roll of paperband as defined in  claim 1  wherein said side edge portions are located closely adjacent each other without any overlap therebetween so that a longitudinal line of weakness is formed therebetween.  
   
   
       3 . The roll of paperband as defined in  claim 1  further including an adhesive layer between each said side edge portion and said center portion.  
   
   
       4 . The roll of paperband as defined in  claim 1  further including an adhesive coating one surface of said paperband when said paperband is used for baling.  
   
   
       5 . The roll of paperband as defined in  claim 1  wherein said undulations are provided on said upper and lower surfaces of said paperband.  
   
   
       6 . The roll of paperband as defined in  claim 1  wherein said undulations are defined by parameters that are selected to increase or decrease stiffness and stretchability of said paperband.  
   
   
       7 . The roll of paperband as defined in  claim 1  wherein said paperband includes an outer surface, further including an adhesive coating on said outer surface of said paperband.  
   
   
       8 . The roll of paperband as defined in  claim 3  wherein each said ply of said board is formed of cellulose fibers and said adhesive is water-soluble.  
   
   
       9 . The roll of paperband as defined in  claim 1  wherein said side edge portions are in abutment with each other.  
   
   
       10 . A roll of paperband adaptable for use in paper web cutting and turn-up systems or for use in baling, said paperband comprising: 
 an elongate multi-ply grade board having upper and lower surfaces, and a center portion and spaced reduced side portions, each said side portion having an inside edge portion and an outside edge portion, each said inside edge portion being defined by an elongate longitudinal first groove between said center portion and respective said side portion, each said side portion being folded about respective said groove to dispose each said side portion in contact with an adjacent portion of said center portion, said side edge portions being located generally medially of said center portion to be located closely adjacent each other without any overlap therebetween so that a longitudinal line of weakness is formed therebetween to provide for longitudinal bending of said paperband about said line when said paperband is pulled from a track assembly, said paperband including transverse undulations to enable said multi-ply board to be formed into a roll of paperband without materially affecting its tensile strength.    
   
   
       11 . The roll of paperband as defined in  claim 10  further including a coating of adhesive for securing said folded side portions to said center portion.  
   
   
       12 . The roll of paperband as defined in  claim 10  further including an adhesive coating on one surface of said paperband when said paperband is used for baling.  
   
   
       13 . The roll of paperband as defined in  claim 10  wherein said board is formed on a multi-ply board manufacturing machine.  
   
   
       14 . The roll of paperband as defined in  claim 12  wherein each said ply of said board is formed of cellulose fibers and said adhesive is water-soluble.  
   
   
       15 . The roll of paperband as defined in  claim 10  wherein said side edge portions are in abutment with each other when said paperband is used for baling.  
   
   
       16 . A roll of paperband as defined in  claim 10  wherein said corrugations are formed to shorten the length of said paperband to provide a shock-absorbing function to minimize tearing of said paperband when tensile force is applied to said paperband.  
   
   
       17 . A roll of paperband adaptable for use in paper web cutting and turn-up systems or for use in baling, said paperband comprising: 
 an elongate multi-ply board having upper and lower surfaces, and a center portion and spaced reduced side portions, each said side portion having upper and lower surfaces and an outside edge portion, each said side portion being foldable to dispose each said side portion in contact with an adjacent portion of said center portion, said paperband including transverse undulations to enable said multi-ply board to be formed into a roll of paperband without materially affecting its tensile strength and to allow for lengthening of said paperband when tensile force is applied to said paperband.    
   
   
       18 . The roll of paperband as defined in  claim 17  wherein one said side portion is folded to place said upper surface of said one side portion onto said central portion, another said side portion is folded to place said lower surface of said another side portion onto said center portion, said side portions being folded so that a pair of spaced generally parallel longitudinal lines of weakness are formed closely adjacent respective said outside edge portion of each said side portion.  
   
   
       19 . The roll of paperband as defined in  claim 17  wherein said side portions are foldable to overlap so that a pair of spaced generally parallel longitudinal lines of weakness are formed closely adjacent respective said outside edge portion of said side portion.  
   
   
       20 . The roll of paperband as defined in  claim 17  further including a first longitudinal groove formed in said upper surface of said board closely adjacent one said side portion and a second longitudinal groove formed in said lower surface of said board, closely adjacent another said side portion.  
   
   
       21 . The roll of paperband as defined in  claim 20  wherein said one side portion is foldable about said first groove to place said upper surface of said one side portion onto a portion of said upper surface of said center portion, said another said side portion is foldable about said second groove to place said lower surface of said another side portion onto a portion of said lower surface of said center portion.  
   
   
       22 . The roll of paperband as defined in  claim 20  wherein said side portions are foldable over said center portion to provide a three-layer portion of said paperband located medially thereof and a two-layer portion of said paperband laterally of said three-layer portion of said paperband to provide a pair of spaced longitudinal lines of weakness where said three-layer portion is adjacent respective two-layer portion.  
   
   
       23 . The roll of paperband as defined in  claim 22  wherein said side portions are folded in a manner to provide substantially planar upper and lower surfaces for said paperband.