JPS607626A - Method and apparatus for trimming transfer medium - Google Patents

Abstract

PURPOSE:To produce an island-like magnetic tape easily by bending a base film synchronously with the position of a half-pulled unnecessary film layer part to accelerate the peeling of the unnecessary film layer part and then removing the unnecessary part physically. CONSTITUTION:A magnetic film 1 turning its peeled layer 7 upwards is passed through between tension rolls 9, 9' and pulling rolls 10, 10' in the arrow direction and a trimming bar 12 to be rotated in the reverse direction against the advancing direction of the magnetic tape 1 by a rotary shaft 11 is formed between the tension rolls 9, 9' and the pulling rolls 10, 10'. The point 13 of the trimming bar 12 bends the base film sharply at a position close to the unnecessary part 3 of the layer-like film synchronously with the position of the layer- like film unnecessary part 3, so that the layer-like film unnecessary part 3 is floated from the leading end side of the advancing direction. Air is blown up to the unnecessary part 3 by an air flow nozzle 14 to peel and remove the unnecessary part 3. Thus, the island-like magnetic tape can be easily produced.

Description

[Detailed Description of the Invention] Length: 131m The present invention relates to a method and apparatus for trimming a transfer medium for producing a magnetic tape, which is used for pasting on forms, magnetic carts, etc. with gaps provided. It is.

Conventional technology Conventionally, the method of transferring magnetic tape to passbooks, forms, etc. is to remove the magnetic tape completely and temporarily paste it, then emboss it with a hot press, and after cooling, peel off the base film manually. Another method was to cut the tape to a predetermined size while temporary pasting it, and then perform the same operations as described above. In addition, there is a technique that uses transfer foil to transfer the foil to the hole 1 by embossing with a press, but it is difficult to produce a magnetic transfer medium in such a foil form due to the film-forming properties of the single magnetic layer. be.

In addition, there is a technology to create island-shaped labels by pasting another paper on a release paper via an adhesive layer, removing the release paper, and removing unnecessary parts. In the magnetic tape for transfer, which is the object of the present invention, the tensile strength and tear strength of the laminate on the base film are weak, making such processing difficult.

SUMMARY OF THE INVENTION The present invention aims to provide a method and apparatus for trimming a transfer medium, which can easily produce an island-shaped magnetic tape, as a means for solving the above-mentioned problems.

Figures 1 (a) to (c) are explanatory diagrams of the sequence of preliminary processing performed to make an island-shaped magnetic tape from an unprocessed magnetic tape. In order to remove trimming part 3 while leaving part 2, (b
) As shown in the figure, perform half-blanking along line 4,
Lifting is generated along the half-blanking line 4 on both sides of this trimming part (layered film unnecessary part) 3, and this part is rubbed by air blowing, brushing, etc., as shown in figure (c).
The purpose is to obtain an island-shaped magnetic tape having blank portions 5 by partially peeling off the film base layer.

That is, as shown in FIG. 2, the magnetic tape 1 has a layered film (release layer) 7 of a magnetic material laminated on a base film 6, but when half-cutted with a die roll or a flat blade, the layered film unnecessary portion 3 is removed. Partial lifting occurs on both side edges along the half-blanking line 4, so after making the lifted parts easier to peel off, use air blowing, friction with a brush, etc. to eliminate this layered film. The purpose is to remove part 3. Incidentally, if the layered film unnecessary portion 3 is subjected to the striation processing 8, this floating phenomenon will appear even more prominently.

The present invention aims to obtain an island-shaped magnetic tape by simply and reliably removing the layered film unnecessary portion 3 of the magnetic film 1 that has been half-cut.
This will be explained using figures.

In the apparatus according to the embodiment of the present invention, the magnetic film 1 is passed in the direction of the arrow between tension rolls 9, 9' and tension rolls 10 and 10' with the release layer 7 on top.

Tension rolls 9, 9' and tension rolls 10°10'
A trimming parr 12 which is rotated by a rotary shaft 11 in a direction opposite to the traveling direction of the magnetic tape 1 is provided at the opening of the magnetic tape 1.
The tip 13 bends the base film 6 near the layered film unnecessary part 3 at an acute angle in synchronization with the position of the layered film unnecessary part 3, thereby moving the layered film unnecessary part 3 of the magnetic film from the leading end side in the direction of travel. Float it up and attach air blow nozzle 1 to it.
The structure is such that the unnecessary part 3 of the layered film is peeled off by spraying a linear film.

In this embodiment, the layered film unnecessary portion 3 is removed by blowing air, or it is also possible to physically remove the lifted layered film unnecessary portion 3 by friction with a brush or the like.

According to the present invention, from the back side of the magnetic tape 1 where the layered film unnecessary part 3 has been partially cut out and floating has occurred, the layered film unnecessary part 3 is removed.
Trimming that moves up and down in synchronization with the position/<-12 tip 1
By bending the base film 3 more strongly, the one-layer film unnecessary part 3 is lifted above the base film 6, and this is removed by blowing air and peeling off by physical friction or the like.
Even in the case of a tape-shaped transfer medium whose transfer layer has low tensile strength and tear strength, it is possible to automatically create a transfer medium having non-transferred portions at regular intervals on a base film.

[Brief explanation of the drawing]

Figures 1 (a) to (c) are explanatory diagrams of the processing order of the magnetic tape, Figure 2 is a cross-sectional view of the magnetic tape after half-blanking, and Figure 3
The figure is a side view of an embodiment according to the present invention. It is. ■...Magnetic film, 2...Island-shaped portion, 3
... Layered film unnecessary part, 4... Half-blanking line, 1...
Magnetic film, 5...Blank area, 6...Base film layer, 7...Peeling layer, 9,9'...Tension roll, 10.10'...Tension roll, Pl...
Rotating shaft, 12...Trimming bar, 13...Tip,
14... Air nozzle. Agent Patent Attorney Makoto Kon

Claims (2)

[Claims] (1) A transfer medium consisting of a base film and a transfer layer,
Cut out the mold leaving the base film, and then cut out the die at regular intervals.
When peeling off the unnecessary portions of step 1 to produce an island-like transfer medium, after bending the base film in synchronization with the position of the half-cut unnecessary film layer portion to facilitate peeling off of the unnecessary film layer portion, A method for trimming a transfer medium that physically removes this unnecessary film layer portion. (2) A transfer medium consisting of a base film and a transfer layer,
When producing an island-shaped transfer medium by cutting out a die leaving the base film and peeling off unnecessary parts of a certain width at regular intervals, the front and back of the half-cut transfer medium are gripped by guide rolls to guide the movement. At the same time, a trimming bar is provided in between to push up and bend the base film at the same timing as the position of the unnecessary film layer to facilitate peeling of the unnecessary film layer, and then physically remove this unnecessary film layer. Transfer media trimming device.