Bag Sealing Tape, and Banding Device and Banding Method Using the Bag Sealing Tape

Abstract

An objective of the present invention is to provide a bag sealing tape which can be repeatedly used without damaging a banded object such as a bag or the like when the object is opened, and which does not have to be separated for disposal; and a banding device and a banding method using the bag sealing tape. The bag sealing tape of the present invention includes adhesion zones and non-adhesion zones, and the adhesion zones are disposed on the surface of a base film in a stepping stone manner in a length direction of the base film.

1 . A bag sealing tape comprising adhesion zones and non-adhesion zones, wherein adhesion layers forming the adhesion zones are adhered to a surface of a base film in a stepping stone manner in a length direction of the base film. 
     
     
         2 . The bag sealing tape according to  claim 1 , wherein when two of the adhesion layers are adhered together, a peeling strength (A) required for separating the two is smaller than an adhesion strength (B) between one of the adhesion layers and the base film. 
     
     
         3 . The bag sealing tape according to  claim 2 , wherein the peeling strength (A) is from 0.1 to 10 N/10 mm. 
     
     
         4 . The bag sealing tape according to  claim 1 , wherein a ratio of a length of one of the adhesion zones to a length of one of the non-adhesion zones in the length direction of the bag sealing tape is from 9:1 to 1:1.5. 
     
     
         5 . The bag sealing tape according to  claim 1 , wherein when one the non-adhesion zones having a cutting reference position is cut at the cutting reference position to obtain a first non-adhesion zone and a second non-adhesion zone, a length (h 1 ) of the first non-adhesion zone and a length (h 2 ) of the second non-adhesion zone are both lengths holdable by a user. 
     
     
         6 . The bag sealing tape according to  claim 1 , wherein each of the adhesion zones is a zone traversing the base film in a width direction thereof. 
     
     
         7 . A banding device using a bag sealing tape which includes non-adhesion zones, and adhesion zones that are disposed on a surface of a base film in a stepping stone manner in a length direction of the base film, the banding device comprising:
 a tape holder for holding the bag sealing tape which is wound;   cutting means; and   a cutting reference position adjusting mechanism, wherein when one of the non-adhesion zones of the bag sealing tape is cut by the cutting means to obtain a first non-adhesion zone and a second non-adhesion zone, the cutting reference position adjusting mechanism adjusts a cutting reference position such that a difference (h 1 -h 2 ) between a length (h 1 ) of the first non-adhesion zone and a length (h 2 ) of the second non-adhesion zone becomes a length recognizable as a holding part by a user after the cutting, and the cutting means is means for cutting the bag sealing tape, which has a cutting reference position adjusted by the cutting reference position adjusting mechanism, at the cutting reference position after the adjusting.   
     
     
         8 . The banding device according to  claim 7 ,
 the cutting reference position adjusting mechanism including a gear shaped winding roller, a retention section, and a piston mechanism disposed at the retention section, wherein   the bag sealing tape is arranged so as to envelop a gear of the winding roller, and a tip portion of the gear of the winding roller abuts the retention section via the bag sealing tape enveloping the tip portion of the gear, and   the piston mechanism is a mechanism for adjusting, in a state where the tip portion of the gear abuts the retention section, the bag sealing tape, which is enveloping the tip portion of the gear, to a cutting reference position by urging the bag sealing tape in a direction of a trough portion of the gear.   
     
     
         9 . The banding device according to  claim 8 , further comprising a holding mechanism at a position preceding the winding roller, wherein
 the holding mechanism holds the non-adhesion portions of the bag sealing tape, and functions as a stopper for controlling an amount of movement of the bag sealing tape.   
     
     
         10 . A banding method using a bag sealing tape which includes non-adhesion zones, and adhesion zones that are disposed on a surface of a base film in a stepping stone manner in a length direction of the base film, the method comprising:
 (1) a drawing step of drawing out, from a tape holder holding the bag sealing tape which is wound, the bag sealing tape by a cutting reference position adjusting mechanism;   (2) a banding step of guiding the drawn bag sealing tape to a gear shaped winding roller which includes a trough portion for guiding an object to be banded, and guiding and banding the to-be-banded object while pressing thereof against the trough portion via the guided bag sealing tape; and   (3) a cutting step of cutting one of the non-adhesion zones by cutting means disposed at a position following the winding roller to obtain a first non-adhesion zone and a second non-adhesion zone, such that a difference (h 1 -h 2 ) between a length (h 1 ) of the first non-adhesion zone and a length (h 2 ) of the second non-adhesion zone becomes a length recognizable as a holding part by a user.   
     
     
         11 . The banding method according to  claim 10 ,
 the cutting reference position adjusting mechanism including a gear shaped winding roller, a retention section, and a piston mechanism disposed at the retention section, wherein   the bag sealing tape is arranged so as to envelop a gear of the winding roller, and a tip portion of the gear of the winding roller abuts the retention section via the bag sealing tape enveloping the tip portion of the gear, and   the piston mechanism is a mechanism which adjusts, in a state where the tip portion of the gear abuts the retention section, the bag sealing tape, which is enveloping the tip portion of the gear, to a cutting reference position by forward and backward urgings of the bag sealing tape in a direction of a trough portion of the gear.