JPH0410070Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a simultaneous copying type heat-sensitive recording sheet used in a thermal printer or the like.

[Prior Art] In recent years, thermal printers have been used in a wide range of fields such as industrial measuring equipment, medical measuring equipment, and office equipment due to their excellent performance of being inexpensive, easy to maintain, and easy to handle. For example, if a thermal printer uses a simultaneous copying type thermal recording sheet disclosed in Japanese Patent Publication No. 57-54318, it is possible to copy onto multiple sheets at the same time. This is extremely advantageous when handing over to someone else.

However, in the conventionally known simultaneous copying type thermosensitive recording sheet, as shown in FIG.
It is not only closely bonded by the pressure bonding layer 1b such as wax applied to the back side of the sheet 2 or the heat sensitive layer 2b containing wax applied to the surface of the base material 2a of the sheet 2, or both, but also has a heat conductive property. Since the thickness of the upper layer base material 1a is thin in order to improve the quality, it is extremely difficult to separate the sheets 1 and 2 after printing, and there is a problem that the sheets have poor handling properties.

[Problems to be solved by the invention] The present invention provides a widthwise cut in the upper layer of the heat-sensitive sheet in a simultaneous copying type heat-sensitive recording sheet in which a plurality of heat-sensitive sheets are laminated by pressure bonding. The problem to be solved is to improve the handling properties of a simultaneous copying type heat-sensitive recording sheet by making it easily peelable from the heat-sensitive sheet.

[Means for Solving the Problems] The simultaneous copying type heat-sensitive recording sheet of the present invention is a simultaneous copying type heat-sensitive recording sheet in which a plurality of heat-sensitive sheets having a heat-sensitive layer on the surface of a base material are laminated together under pressure. The above-mentioned problem is solved by providing the upper layer of the heat-sensitive sheet with widthwise cuts that reach the bottom surface of the heat-sensitive sheet.

[Function] Since the heat-sensitive recording sheet before printing is made up of a plurality of heat-sensitive sheets integrated by pressure lamination, it can be simultaneously copied onto a plurality of heat-sensitive sheets using a thermal printer or the like.

The simultaneously copied recording sheet is bent so that the upper layer heat-sensitive sheet side is convex, and the cut portion of the upper layer heat-sensitive sheet is naturally separated from the lower layer heat-sensitive sheet by the cut in the width direction that reaches the bottom surface of the upper layer heat-sensitive sheet. Therefore, it is possible to peel off the heat-sensitive sheets that have been laminated under pressure extremely easily.

[Embodiment] FIGS. 1 and 2 show an embodiment of the present invention. This simultaneous copying type thermosensitive recording sheet 10 consists of two layers of thermosensitive sheets 11 and 12 extending in the longitudinal direction. The heat-sensitive sheet 11 has a heat-sensitive layer 11b on the surface of a paper 11a constituting a base material, a pressure bonding layer 11c made of wax on the bottom surface, and a heat-sensitive sheet 1 as a lower layer.
2 has a thermosensitive layer 1 on the surface of paper 12a constituting the base material.
2b, and the sheets 11 and 12 are laminated by pressure bonding so as not to be easily peeled off by the pressure bonding layer 11c or the wax mixed in the pressure bonding layer 11c and the heat sensitive layer 12b, and the heat sensitive layers 11b and 12b.
is equipped with a coloring agent that develops color when heated.

The heat-sensitive sheet 11 is divided into many parts in the longitudinal direction of the sheet by a large number of cuts 13 in the width direction that reach the lower surface of the sheet 11. However, the shape of the cuts 13, . Depth 1
3, and can be easily cut by the notches 13.
1 may be provided in a part of the width direction.

Further, on the heat-sensitive sheet 10, a large number of sensor marks 14, . . . or sensor holes for positioning are provided at predetermined intervals in the longitudinal direction.

Therefore, the above-mentioned cuts 13, ... are the sheet 1.
After the notches 1 and 12 are pressed and laminated in the longitudinal direction, the recording sheet 10 in which the notches 13, . . . are engraved is wound into a roll.

FIG. 3 shows the peeling state of the heat-sensitive sheets 11 and 12 after the recording sheet 10 is simultaneously copied by a thermal printer. In the figure, reference numeral 16 is a thermal head of the printer, and 17 is a platen roll.

The thermal head 16 and platen roll 17 of the thermal printer print desired lines, characters,
The recording sheet 10 on which figures etc. are simultaneously copied is the third
As shown in the figure, when the heat-sensitive sheet 11 side is curved with a convex shape, the preceding notch 13 of the heat-sensitive sheet 11
Since the heat-sensitive sheet 11 is naturally peeled off from the heat-sensitive sheet 12, it is extremely easy to separate the heat-sensitive sheet 11 from the heat-sensitive sheet 12. Therefore, the heat-sensitive sheet 11 can be peeled off and cut by the notches 13 and delivered to a customer, etc., and the lower layer heat-sensitive sheet 12 can be rolled up again or folded to an appropriate width. A copy may be made for record purposes.

[Effect of the invention] The simultaneous copying type thermosensitive recording sheet of the present invention has a cut in the width direction that reaches the lower surface of the thermosensitive sheet in the upper layer, so that a peeling part can be created between the upper and lower thermosensitive sheets. As a result, the upper layer heat-sensitive sheet can be peeled off very easily, and the handling properties of the simultaneous copying type heat-sensitive recording sheet can be improved.

Further, since the upper layer heat-sensitive sheet can be easily cut by the above-mentioned cuts, even if the upper layer heat-sensitive sheet is continuous in the longitudinal direction, each piece can be separated.

[Brief explanation of the drawing]

1 and 2 show an embodiment of the present invention, FIG. 1 is an enlarged cross-sectional view taken along the line A-A in FIG. The explanatory diagram, FIG. 4, is an enlarged cross-sectional view of a conventional simultaneous copying type thermosensitive sheet. 10...Recording sheet, 11, 12...Thermosensitive sheet, 11b, 12b...Thermosensitive layer, 13...Notch.

Claims (1)

[Scope of utility model registration request] In a simultaneous copy type thermosensitive recording sheet in which a plurality of thermosensitive sheets having a thermosensitive layer on the surface of a base material are laminated by pressure, the upper thermosensitive sheet in the recording sheet is provided with a cut in the width direction that reaches the lower surface of the thermosensitive sheet. A simultaneous copying type heat-sensitive recording sheet characterized by: