Adhesive tapes and methods for splicing low surface energy substrates with flying splices are provided. An example adhesive tape comprises an adhesive layer and a backing adjacent to the adhesive layer. The adhesive layer comprises a first adhesive comprising a higher shear resistance, cohesive strength, and surface energy relative to a second adhesive, and the second adhesive comprises a higher tack for low surface energy substrates relative to the first adhesive. The second adhesive is different from the first adhesive. The second adhesive is adjacent to the first adhesive and there is substantially no overlap between the first adhesive and second adhesive.

Provided are adhesive tapes and methods of use. The adhesive tape provides a flying splice of fibrous materials. An example adhesive tape comprises an adhesive layer, a backing adjacent to the adhesive layer, and a non-adhesive mechanical fastener.

Provided are adhesive tapes for splicing metal materials and methods of splicing and processing the metal materials. The adhesive tape provides an end-to-end splice of metal sheets. An example adhesive tape comprises a first adhesive layer, a second adhesive layer, a carrier positioned between the first adhesive layer and the second adhesive layer, a backing comprising a material selected from the group consisting of woven polyester, polyester film, polyamide film, and any combination thereof; wherein the backing is positioned adjacent to the second adhesive layer, and a liner adjacent to and covering at least a portion of the first adhesive layer.

Splicing method and unit for a packaging machine, whereby a first film is spliced to a second film which is a spare film. The splicing is performed by means of an adhesive element with two opposing adhesive surfaces, one for each film, and a longitudinal adhering element. First an adhesive surface is adhered to the adhering element and said adhering element moves so that the other adhesive surface comes into contact with the second film and adheres to it. Then the adhering element is separated from said second film, the adhesive element being adhered to said second film, and the first film is caused to come into contact with said adhesive element already adhered to the second film.

A secondary battery electrode film and separator supply device configured to: replace a bobbin when an electrode separator is used up by automatically extracting an empty bobbin from a spool, mounting the empty bobbin on a side of a bobbin mount of a bobbin changer, changing the position of a new bobbin mounted on another side by rotating the bobbin mount 180 degrees, and then moving and mounting the new bobbin on the spool; automatically extracting an end of a wound electrode separator through vacuum suction and connecting the end to another electrode separator; and feed a replacing material roll to a moving spool, cut a finishing tap at an end of a material by a predetermined length, and then automatically connect a new separator end of the replacing material roll and an in-use separator end through taping.

One aspect of the present disclosure relates to an auto-splicing device for an electrode and an auto-splicing method, and more particularly, to an auto-splicing device for an electrode and an auto-splicing method, which can minimize connection defects between the running electrode and the new electrode, wherein the running electrode and the new electrode connected and supplied to the running electrode are aligned on the basis of their coating lines by using the auto-slicing device.

A splice tape is provided. The splice tape includes two internal support layers bonded at interface between opposing inner surfaces of the internal support layers. The support layers are formed utilizing a process and/or materials that ensure that the two internal support layers separate cleanly and consistently along the interface of the two internal support layers.

The present invention concerns a method for joining the ply of a reel of paper in depletion with the initial flap of a new reel, as well as an apparatus adapted for carrying out such a method.

Thanks to the method according to the present invention, and to the apparatus suitable for carrying it out, the joining of the reels takes place without using gluing means, like for example the double-sided tape used in known methods, avoiding the relative drawbacks, the adhesion between the plies of the reels to be joined taking place by electrostatic attraction.

An auto splicing apparatus of roll to roll feeding equipment includes first and second supply rolls in which component fabric of a single layer is wound in roll form and the component fabric is unwound from the first supply roll or the second supply roll along a predetermined transfer path including a pair of feeding rollers that are disposed at upper and lower sides, respectively, of the transfer path; a first cutter assembly that is installed to perform a first vertical rotation based on the transfer path between the first supply roll and the feeding roller and including a first fabric cutter and a first fabric absorption portion; and a second cutter assembly that is installed to perform a second vertical rotation based on the transfer path between the second supply roll and the feeding roller and including a second fabric cutter and a second fabric absorption portion.

The disclosed supply roll (5) comprises a roll core (6); flat material and/or strip material (8) being carried on the roll core (6) in a multitude of windings; and at least one functional marker (2). The at least one functional marker (2) is placed in a specified relative position at an externally arranged free end section (7) of the flat material and/or strip material (8) such that information about the relative position of the free end section (7) is optically identifiable by way of the at least one functional marker (2).