JPH0730620Y2 - Roll of image receiving paper - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a take-up roll of image-receiving paper having a hole for detecting the end used for heat-sensitive melting transfer, heat-sensitive sublimation transfer and the like.

[Prior Art] The image-receiving paper used for heat-melt transfer or heat-sublimation transfer is
Sheets are cut and supplied in a bundle of a fixed number,
Alternatively, it is supplied as a so-called winding roll by winding it on a cylindrical core as it is long. This take-up roll is made by adhering one end of the image-receiving paper to a cylindrical core made of vinyl chloride and then taking it up, but it is necessary to detect the end of the take-up roll when it is used in a printer. is there.

As the method, there is adopted a method of detecting the torque of the bonded portion of the image receiving paper to know the end portion, or providing a detection line with a red tape between the end portions, for example. The detection method has a problem that the torque cannot be detected when the bonded part is peeled off.
Also, if a line for detection is provided with tape, there is a problem that wrinkles due to adhesion occur as the number of processes in the factory increases, so by providing a hole for detection, it is possible to reliably detect this using a photoelectric tube sensor. Then, the end part is known.

[Problems to be Solved by the Invention] However, in the method of forming the hole for detecting the end, it is necessary to remove the paper piece produced by punching,
When the removal is insufficient and the paper piece remains between the image receiving papers, there is a problem in that the image receiving paper is wound and a streak is generated at a portion overlapping the paper receiving piece. Further, there is a problem that streaks due to steps are similarly generated due to the formed holes.

Then, when the printer is loaded in a printer and unwound, it has a problem that the portion where the streaks occur does not transfer accurately and the pattern becomes unclear. Moreover, the generated lines did not give a good impression to the appearance.

The present invention has been made in view of such a problem that a conventional take-up roll of image-receiving paper having a hole for detecting the trailing end has, and an object thereof is to remove a paper piece caused by punching. (EN) Provided is a winding roll of image receiving paper which is unnecessary and does not generate a streak due to a step even when the winding is unwound during use.

[Means for Solving the Problems] In order to achieve the above object, the image-receiving paper take-up roll of the present invention is configured such that one end of the image-receiving paper is adhered to a cylindrical core and then the image-receiving paper is wound around the core. In the winding roll of the image receiving paper produced by the above method, a circular portion formed by a circular cut leaving a part of the circumference is provided near the end of the image receiving paper, and the winding inner portion of the circular portion and the winding portion are wound. It is characterized in that a portion which overlaps the circular portion is adhered with an adhesive before one round of taking.

[Operation] The image-receiving paper take-up roll configured as described above is loaded into a printer for use. Then, when the winding is sequentially unwound and approaches the end portion and reaches the circular portion, the circular portion is adhered to the portion overlapping with the circular portion one round before the winding, so that the circular portion remains without being cut. The portion is broken by the force that tries to unwind, and the circular portion is left behind in the portion overlapping the circular portion one round before winding. As a result, the portion from which the circular portion has been removed serves as a hole for detecting the end of the image receiving paper in the winding roll.

[Embodiment] Next, an embodiment of the present invention will be described. FIGS. 1 to 3 show a take-up roll of image receiving paper as one embodiment of the present invention, and FIG. 1 shows the image receiving paper as a core. FIG. 2 is a perspective view showing a state in which winding is started, FIG. 2 is an enlarged view of a circular portion which is removed and serves as a hole for detecting the end, and FIG. 3 shows a state in which the winding roll of the image receiving paper is unwound to the end of the image receiving paper. It is a perspective view.

As shown in FIG. 1, one end of the image receiving paper 1 is adhered to a cylindrical core 2 made of vinyl chloride and then wound around the core 2. 3 is the core 2 and the receiving paper 1
Is a cutout notch for loading a take-up roll formed by winding up the printer into a printer. Reference numeral 4 is a circular cut, and as shown in FIG.
The circular portion 5 is formed on the image receiving paper 1 by the cut 4. Adhesive is applied to the upper surface of the circular portion 5 as seen in FIG. 1, and when the image receiving paper 1 is wound up, the circular portion 5 is formed in the portion overlapping the circular portion one round before winding. It is designed to be glued.

When the take-up roll of the image receiving paper is loaded into the printer and used, and is unwound to the end of the image receiving paper 1, as shown in FIG. 3, the circular portion 5 adheres to the portion overlapping with the circular portion 5 after one round of unwinding. And left behind. And the circular part 5
The circular hole 6 formed by removing the is used as a hole for detecting the end. That is, the presence or absence of the photoelectric tube sensor is detected to cause the printer to recognize that the end of the image receiver sheet 1 has come.

[Advantages of Device] Since the present invention is configured as described above, it has the following effects.

Since the hole for detecting the end is not punched out but only a circular cut leaving a part of the circumference is formed, the removal processing of the paper piece becomes unnecessary.

In addition, the circular part is adhered to the corresponding position after one round when unwinding, and the hole for detecting the terminal end is not formed in the image receiving paper only when it is left unwound when unwinding. As in the case where the holes are formed, no streaks are formed when the image receiving paper is wound due to the stepped portions of the holes. Further, the punched-out piece of paper does not remain between the image receiving sheets, and therefore, the streak caused by the remaining piece does not occur.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which the image receiving paper starts to be wound around the core, FIG. 2 is an enlarged view of a circular portion which is removed and serves as a hole for detecting the end, and FIG. 3 is a winding roll of the image receiving paper. It is a perspective view showing the state where it was unraveled to the end. 1 ... Image receiving paper, 2 ... Core, 3 ... Notch notch, 4 ... Notch, 5 ... Circular part, 6 ... Hole for end detection

Claims (1)

[Scope of utility model registration request] 1. A take-up roll for an image-receiving paper produced by adhering one end of the image-receiving paper to a cylindrical core and then winding the image-receiving paper around the core. A circular portion formed by a circular cut leaving a portion is provided, and a winding inner portion of the circular portion and a portion that overlaps with the circular portion one round before winding are adhered with an adhesive. Take up roll of image receiving paper.