JPS6056553A - Separating method and device of heat transfer medium - Google Patents

Abstract

PURPOSE:To prevent a transfer layer from floating with respect to an article to be transferred by separately removing a base film after thermal transfer while changing the direction at an angle of 90 deg. or larger, thereby avoiding a vertical force to the layer. CONSTITUTION:A separating blade of triangular section having an acute angle toward the moving direction of a transfer unit is arranged near the moving plane of the unit. In other words, a tape material on which thermal transfer medium (e.g., a magnetic layer) 7 is bonded in an island state on the base film 9 is pulled out from a supply reel 1, and a material 8 to be transferred and moved synchronously with the reel is heated and pressed by a hot press 6. Then, the film 9 is converted in the direction at 90 deg. or larger (preferably near 180 deg.), wound on the reel 2 through a guide roller provided on the film, while the material 8 to be transferred of the medium is moved to the next step. The width (l) of the blade is formed larger than the interval (d) of the medium 7.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a means for peeling off a base film from a transfer surface after thermal transfer of a thermal transfer medium to a transfer object.

Prior Art In the conventional foil stamping method, the base film of the thermal transfer medium is peeled off from the transfer surface by instantly moving the base film upward immediately after thermal transfer. In this case, when the adhesive strength between the base film and the transfer layer is strong, there is a drawback that the transfer layer lifts due to uncured adhesive.

Purpose The present invention was proposed in order to improve the defects of the above-mentioned prior art, and it is possible to remove the transfer layer without causing any lifting of the transfer layer in the step of peeling off the base film after thermal 111-photography. It is an object of the present invention to provide a method and apparatus capable of peeling off a base film from a transfer surface.

Structure The present invention provides: (1) Immediately after thermal transfer of a thermal transfer medium onto a transfer target, a method for peeling off a tape-shaped base film supporting a transfer layer from the transfer target, in which the stamp position of the hot press and the transfer target are separated. A peeling blade is installed between the base film winding side, which has an acute angle toward the transfer direction of the transfer object, and is along and close to the transfer plane of the transfer object. The film is placed along the surface of the peeling blade, the direction of the film is changed by at least 90 degrees, and then the transferred film is taken up via a guide bar, and after thermal transfer, at least A method for peeling a thermal transfer medium, characterized in that the base film and the material to be transferred are simultaneously pulled in the same direction so that the transfer speeds of the base film and the transfer target match at the position of the peeling blade.

(2) Immediately after the thermal transfer medium is thermally transferred to the transfer target, a device that peels off the tape-shaped base film supporting the transfer layer and the transfer target, the device including the stamp position of the pot press and the transferred base film. A peeling blade with a triangular cross section that has an acute angle toward the transfer direction of the transfer object and is close to and along the transfer plane of the transfer object is installed between the transfer foil base plate and the winding position. Said ilm! , 11
Along the acute-angled surface of the part blade, the direction of the transfer is made to exceed at least 90 degrees before being transferred to the winding side via the guide bar surface, and after thermal transfer, at least the peeling 1' l[i] A thermal transfer medium peeling device characterized in that both parts are pulled in the same direction at the same time so that the transfer speeds of the transferred base film and the transferred object match at the blade position.

One embodiment of this will now be made clear based on the description of the illustrated device.

FIG. 1 is a side view of the entire thermal transfer device, and in the figure, 1
1 is a magnetic tape supply reel, on which a magnetic layer 7 is wound inwardly on a base film 9, and a wave-like strip in which the magnetic layer 7 has been processed and pasted in an island shape in advance. Referring to FIG. 3, in the element H, the distance between the islands of the magnetic layer 7 (1 is "1" of the peeling blade 6 shown in the second diagram).
It will be longer than the flood.''

Returning to FIG. 1, reference numeral 2 denotes a winding reel for the transferred base film 9, to which preferably a film winding torque of an appropriate thickness is applied at all times. 3 and 3' are located just before the take-up reel 2, and 4 and 4' are the peeling reel D-/ which pinches the transferred base film 9 from both sides and rotates intermittently fCC10 to apply a tensile force to the film 9. Immediately after the downstream of the blade 6 (2), a roll rotates intermittently while sandwiching the transferred object 8 with the magnetic film (layer) 7 thermally transferred from both sides thereof, and transports the transferred object 8; 5 is a magnetic tape; The laminated material, which is placed between the base film take-up reel 2 and the base film take-up reel 2, is pressed and heated, and the base film 9, the magnetic film 7, and the transferred object 8 are stacked in this order and transferred. The hot press 6 is a triangular peeling blade with an acute angle in cross section, which transfers the magnetic film 7 attached to the film 9 side to the object 8 side. [] It is located between the rolls 4 and 4', its longitudinal direction extending perpendicularly to the direction of transfer of the transfer target 8, and along the plane of its bottom surface in the direction of transfer. Further, the acute angle of the peeling blade 6 is provided in the direction of transfer of the transfer target 8 (11 points).

Referring again to FIG. 2, the detailed structure of the peeling blade 6 is such that a blade with a triangular cross section with an acute apex angle is perpendicular to the conveying direction 11 of the transferred object and is perpendicular to the conveying direction 11 of the transfer object. A direction-changing par, preferably a roller, is pivotally supported parallel to the blade at -1:, yll+. After passing through the pot press position, the base film 9 passes through the bottom surface of the peeling blade 6 and is then bent along the acute angle of the blade to change its transport direction from 150 to 160 degrees.
After converting the transfer direction, it bends along the circumferential surface of the direction q1L conversion bar installed on the top of the blade 6, and then changes the transfer direction to 9 again.
0", the base film tension roll 3,
3' and is wound up by the base film take-up reel 2.

The device constructed as described above generally operates as follows. That is, after transferring the island-like sand layer 7 supported by the pace film A 9-A so as to face a predetermined position on the surface of the subject 8 where the new 'Ic layer 11 is to be coated, the two are overlapped and a hot film is applied from the base film 9 side. The magnetic layer 7 is pressed and heated by the press 5 to thermally transfer it to the transfer target 8 side, and then the hot press 5
is away from the thermal transfer position, the base film tension rolls 3, 3' rotate intermittently and the perspective film 9,
The thermal transfer laminated material consisting of the magnetic layer 7 and the transferred object 8 is transferred to the transferred object pulling rolls 4 and 4'. At this time, if the object to be transferred 8 is heavy, such as a bankbook, it may be difficult to transport it only by the tension of the base film, and in this case, the object to be transferred 8 may be transferred at a constant speed using another transfer device It is ff to take measures to do so. The same applies to continuous paper. Thermal transfer lamination A' is pulled by the base film 9 and passes through the bottom surface of the peeling blade 6, but only the base film 9 is oriented 150 to 160 degrees along its acute angle.
The magnetic layer 7 and the transferred object 8 are separated from the plane in the transport direction, and further changed direction along the circumferential surface of the direction changing bar installed on top of the magnetic layer 7 and the transfer target 8, and then transferred between the base film pulling rolls 3.3'. sandwiched between. As a result, at the tip of the peeling blade 6, among the laminated materials pulled by the base film 9, the laminated material consisting of the magnetic layer 7 and the transferred object 8 is transferred along the bottom surface of the peeling blade 6, and transferred to the transferred object pulling roll 4. , 4' side and further transferred, while the base fill t, 9 is turned 150 to 160 degrees from the surface of the laminated layer 4A at the acute angle part of the 9 huff L'-dro, and is pulled. When peeling the base film 9 from the surface of the material, there is no strong peeling action in the direction perpendicular to the base film peeling surface;
Since it is close to pulling in the opposite direction at 0°, the base film 9
As a result, the phenomenon of pulling up the magnetic layer 7 on the transfer target in the perpendicular direction does not occur, and therefore, even if the base film 9 has strong adhesive strength, the pock-like appearance on the surface of the transfer layer, which has been observed in the past, does not occur. There is no risk of bubbles forming.

When the peeling of a predetermined length of the base film 9 is completed, that is, when the tension rolls 3 and 3' rotate intermittently until the end of the transfer foil magnetic layer 7 reaches the tip of the blade 6, the following new 7: c? The base film supporting the iXt air layer 7 is rewound from the supply reel 1 side and occupies the stamp position of the pot press 5, and at the same time, a new transfer target 8 is transferred in accordance with the position of the magnetic layer 7 and set in a fixed position. is °C1
Preparations for the next thermal transfer process are completed.

Meanwhile, by the base film tension rolls 3, 3',
Transfer foil base film 9 pulled up from the stamp position
are wound one after another on a take-up reel to which a weak winding torque is applied.

On the other hand, downstream of the peeling blade 6, the transferred object 8 supporting the magnetic layer 7 is conveyed and discharged from the apparatus while being held between constantly rotating tension rolls 4.about.4'.

In the above embodiment, the condition [1>u] was determined because it is necessary to apply the hot press 5 to any edge portion of the magnetic layer 7.

Through the steps described above, one cycle of thermal transfer operation is completed.

Effects In the conventional thermal transfer method, when trying to separate the base film and transfer layer after C1 thermal transfer, applying force in the direction perpendicular to the transfer surface will cause pock-like bubbles to form on the surface of the transfer layer due to uncured adhesive. 7:c may occur, and stable thermal transfer could not be performed. By adopting the method of the present invention, the peeling angle between the transfer layer and the base film can be maintained at about 150 to 160 degrees at all times, so when the base film is peeled off, a force is generated that pulls the transfer layer in the direction perpendicular to the transfer surface. Therefore, there is no possibility that bubbles as described above will be generated on the surface of the transfer layer.

According to the device of the present invention, the peeling blade is small and has a simple structure, and the peeling blade is small and has a simple structure.
Since the base film is peeled off by the controller with only the transfer speed, the entire apparatus becomes simple.

Furthermore, whether the object to be transferred is continuous or sheet-like, it is possible to carry out heat transfer, copying, and peeling.

The method of the present invention is suitable for implementation in a thermal transfer device for magnetic passbooks or magnetic slips.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view of an apparatus according to an embodiment of the present invention, FIG. 2 is an enlarged perspective view of a peeling blade, and FIG. 3 is a plan view of a base film supporting a transfer layer. 3.3'...Base film tension roll 4.4'.
...Tension of transferred object [1-Rule 5... Hot press 6... Peeling play F7... Magnetic layer 8... Transferred object 9... ...Base Film Agent Patent Attorney Makoto Kon

Claims (1)

[Claims] (11 Immediately after thermal transfer of a thermal transfer medium to a transfer target, in a method of peeling off the transfer target from the tape-shaped base film supporting the φJ: photographic layer, the hot press stamp position and A peeling blade is installed between the transfer foil head and the soil removal side, which has an acute angle toward the transfer direction of the transfer object, and is along and close to the transfer plane of the transfer object. After thermal transfer, the transferred base film is aligned with the surface of the peeling blade, the direction of transfer is changed over at least 90'', and then the transferred base film is directed toward the transferred film winding side via a guide bar, and after thermal transfer, A method for peeling a thermal transfer medium, characterized in that the base film and the transfer target are simultaneously pulled in the same direction so that the transfer speeds of the base film and the transfer target match at least at the peeling blade position I6. 1n transferred to the transfer body with heat i1t7g
Afterwards, it is a device that peels off the tape-shaped base film supporting the transfer layer from the transferred object, and is used to transport the transferred object between the stamp position of the pot press and the transferred base film/winding position. A peeling blade having an acute angle in the direction and having a triangular cross section along and close to the transfer plane of the transfer body is installed, and the transferred base film is aligned with the acute angle surface of the peeling blade, and the The transfer direction is changed by at least 90 degrees before being transferred to the take-up side via the guide bar surface, and after thermal transfer, the transferred base film and the transferred object are separated at least at the peeling blade position. A peeling device for a thermal transfer medium, characterized in that both strips are pulled in the same direction at the same time so that the transfer speed matches that of the strip.