JPH01110462A - Paper seaming tape and method of its use - Google Patents

Abstract

PURPOSE:To efficiently perform paper seaming work by forming two or more holes linearly in a both-side adhesive tape, peeling bottom part mold releasing paper of the tape, adhesively attaching a point end of the following paper, peeling upper part mold releasing paper and adhesively attaching a rear end of the preceding paper. CONSTITUTION:A hole 5 or a cut-in line 6 is formed with an equal space being displaced to one side from the center line of a both-side adhesive tape 1. Peeling a bottom part mold releasing paper 4 of the tape 1, the tape 1 adhesively attaches both adhesive faces 2 in its wide width part to an end part 9 of the following paper 8 and narrow width part to the next bottom side layer 11 of the following paper 8. Next peeling upper part mold releasing paper 3, the adhesiveness of the narrow width part is eliminated by inorganic dust 12. Subse quently, the adhesive part 2 forces in its wide width part a rear end of the preceding paper 13 to be attached. When the preceding paper 13 pulls the follow ing paper 8, the tape 1 is cut in a line of the hole 5 (cut space in 6), and the following paper 8 is pulled out. In this way, adhesive work is surely and easily applied even to roll paper of large size.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a tape for splicing paper webs and a method of using the same, and more particularly relates to splicing paper webs for use in offset rotary presses, off-machine coating machines, etc. be.

BACKGROUND OF THE INVENTION A web of paper in a conventional offset rotary press or the like is continuously operated while being sequentially fed, and at that time, newly fed paper is spliced. Conventionally, for paper splicing, preparations (hereinafter referred to as "tailoring") are performed in advance on the ends as shown in FIGS. 4 to 6.

That is, the unwinding end 4 of the newly fed succeeding paper 401
02, in order to prevent the edge 402 from unraveling, cut the edge 402 of the paper in a figure 7 shape (or diagonally), and attach a number of marks on the cut edge at appropriate locations. A plurality of tabs 403 are glued together, and an adhesive tape 4 is placed on top of the tabs 403.
Paste 04.

The tab 403 has a strip shape as shown in FIGS. 5 and 6, and after gluing the edge 402 of the paper and the paper below it,
A notch 405 is formed.

Thereafter, an adhesive tape 404 is further pasted onto the tab 403 of the end portion 402.

After the above-mentioned tailoring, the following paper 401 is accelerated to the same speed as the preceding paper (not shown), and when the surface of the adhesive tape 404 is bonded to the preceding paper and rewound, the plural tabs 403 are removed at the notches 405. It is cut and only the end 402 is glued to the preceding paper and rewound is performed.

However, the conventional tailoring method described above requires work such as adhering a plurality of tabs 403 and pasting adhesive tape 404, which not only makes the work complicated, but also requires work such as adhering a plurality of tabs 403 and pasting adhesive tape 404.
The formation of a cut 405 in the paper, the application of the adhesive tape 404, etc. are characterized by considerable skill.In recent years, there has been a tendency for machines that use paper rolls to become faster and faster. As shown, the end between the tabs 403 is rolled up due to air resistance,
As a result, the tab 403 breaks, resulting in a failure in paper splicing.

If the number of tabs is increased in order to solve this problem, it is thought that the curling up of paper at the edges can be solved to some extent, but the increase in the number of tabs naturally increases the working time and poses a problem in workability.

A device for automating the tailoring work has also been proposed (Japanese Patent Application Laid-open No. 88758/1983).

62-88759), the device is complicated and expensive, and the risk of paper splicing failure at high speeds cannot be completely resolved.

Problems to be Solved by the Present Invention The present invention solves the problems of the conventional tailoring methods mentioned above, such as requiring skill, taking too much time, and risk of paper splicing failure at high speeds. It is an object of the present invention to provide a tape for splicing paper webs that can be improved and easily accomplished without using any complicated or expensive equipment, and a method for using the same.

Means for Solving the Problems The first invention of the present application is a paper splicing tape in which a plurality of linear holes and/or cuts are formed in a double-sided adhesive tape, and the second invention is an offset adhesive tape. In paper splicing using rotary presses, off-machine coating machines, etc., the adhesive layer on one side of the paper splicing tape, in which multiple holes and/or notches are formed in a straight line on double-sided adhesive tape, is attached to the center line of the multiple holes. Or, after aligning the score line with the edge of the paper edge of the succeeding paper and adhering it to the paper edge surface and the paper surface below it, the adhesiveness of the adhesive layer on the top of the tape adhered to the lower paper surface can be adjusted. After disappearing,
The remainder of the adhesive layer on the top of the edge of the paper is glued to the leading paper, and as the edge runs along with the running of the leading paper, the portion of the tape glued to the bottom paper is cut by a plurality of holes and/or notches. This is a method of using a paper splicing tape that is configured to be released and rewound.

Function The present invention has the above configuration, and the first invention has a simple structure in which a plurality of holes and/or cuts are formed in a straight line in a double-sided adhesive tape. Although the positions where the holes are formed are not particularly limited, the positions of the center lines of the plurality of holes are desirably shifted from the center of the tape width. The shape of the multiple holes drilled is not limited to circles but squares.

Various shapes such as hexagonal and large rectangular shapes can be used, but it is desirable that the plurality of holes have the same shape and size.

Furthermore, the spacing between multiple holes is determined by the thickness of the adhesive layer of the adhesive tape.
tensile, tear strength and applied web tension;
It can be appropriately selected depending on the tear strength and the like.

In addition, instead of the plurality of holes, linear perforations or slit-like cuts may be formed, and if necessary, both the plurality of holes and the cuts may be formed.

To use such a tape, first peel off the release paper at the bottom of the tape, and then line the center line of the multiple holes of the tape or the edge of the V-shaped or diagonally cut paper of the following paper. Match the score lines and glue one side to the paper edge surface and the other side to the underlying paper surface. In this case, it is desirable to apply a wide portion of the tape on the surface of the paper edge to ensure sufficient adhesion to the preceding paper.

Note that although the first invention describes a paper splicing tape in which release paper is laminated on both adhesive layer surfaces, release paper is not necessarily required on both adhesive layer surfaces. Alternatively, release paper for the upper part may be laminated and wound up so that the release paper also serves as release paper for the adhesive surface of the lower part.

Next, the part of the upper release paper that is adhered to the paper surface below the tape, that is, the upper release paper up to the center line of the plurality of holes or the score line, is cut off or folded back, and its exposed adhesive surface is removed. Erase the stickiness of only the part.

The adhesive can be removed using inorganic powders such as calcium carbonate,
It is sufficient to attach powder such as clay.

However, the removal of stickiness is not limited to the attachment of inorganic powder, and may be removed by applying an organic solvent or the like. Further, if necessary, the part of the release paper where the adhesiveness is to be removed may not be subjected to a release process and may be bonded.

After preparing the edge of the succeeding paper as described above, to join the paper, peel off the remaining part of the upper release paper to expose the adhesive surface, rotate it at the same speed as the preceding paper, and rotate it at the same speed as the preceding paper. Glue the sticky side to the leading paper. In this case, the upper adhesive surface that is adhered to the lower paper surface has lost its adhesive properties, so there is no risk of it adhering to the preceding paper.

The paper edge of the trailing paper adheres to the leading paper and starts running with the leading paper, and at the same time, the paper edge is pulled by the tensile force of the leading paper, and as a result, the adhesive tape is broken from the multiple holes or notches. The edges of the paper are separated and rewound smoothly.

That is, the present invention adheres the tape of the first invention to the paper edge of the following paper and gives the tape the same function as a conventional tab, thereby achieving slight double-sided adhesiveness without using any conventional tab. Since only the tape is pasted, work efficiency can be greatly improved compared to conventional methods. For example, conventionally the time required for the tailoring is about 10 minutes even for an expert, but in the present invention, a diameter of about 5 minutes is sufficient.

In addition, since the tabs used in conventional tailoring are attached at appropriate intervals, there is a problem that the edges of the paper without the tabs are rolled up during high-speed operation, but in the present invention, the edge of the paper is rolled up. Since the paper is covered with tape, there is no risk of the edges of the paper being rolled up.
There are almost no failures in paper splicing.

Embodiment FIGS. 1 and 2 are an embodiment of the first invention, and FIG. 3 is an explanatory diagram of the second invention. Hereinafter, the present invention will be explained in detail based on these drawings. explain.

A paper splicing tape (hereinafter referred to as car tape) 1 according to the first invention has an upper release paper 3 and a lower release paper 4 laminated on both sides of a double-sided adhesive tape 2, respectively.

Further, the tape 1 is provided with a plurality of holes 5 along its length. The plurality of holes 5 are formed offset to the left or right from the center of the width of the tape 1, and are formed in a straight line at equal intervals. In the illustrated example, the plurality of holes 5 are circular, but the shape is not necessarily limited to a circle, but it is desirable that the holes 5 have the same shape and the same size.

Furthermore, in the illustrated example, notches 6 such as perforations or cuts are formed along the center line between the plurality of holes 5;
The cut 6 is not necessarily required. Note that the reference numeral 7 in FIG. 1 is an adhesive layer formed on the double-sided adhesive tape 2.

Next, to explain how to use the tape 1, after cutting the back end 9 of the trailing paper 8 in a V shape or diagonally, peel off the lower release paper and paste it along the end 9. . In this case, as shown in FIG. 3a, the notches 6 of the plurality of holes 5 made in the tape 1 are aligned with the edge 10 of the end portion 9, and one of the widths of the tape 1 is aligned with the surface of the end portion 9. Then, attach the other side to the surface of the lower paper 11.

Next, the tape 1 attached to the surface side of the lower paper 11
Partially peel off the upper part of the release paper 3 up to the notch 6, and
This is separated at the notch 6 as shown by the dotted line in Figure b. However, in this case, the upper release paper 3 may be folded in at the notch 6 without being separated.

By doing this, the upper part of the paper 11 on the lower side of the tape 1 is covered with the adhesive layer 7 of the double-sided adhesive tape 2.
Since the surface of the adhesive layer 7 is exposed, the adhesive layer 7 is coated with an inorganic powder 12 such as calcium carbonate or clay to eliminate the tackiness of the adhesive layer 7, as shown in FIG. 3C.

After preparing the edge of the succeeding paper as described above, when splicing the paper, peel off the remaining part (dotted line part) of the release paper 3 at the top of the tape 1 as shown in Fig. 3d, and remove the adhesive on the paper edge 9. The layer 7 is exposed, and in this state, the subsequent paper 8 is accelerated and rotated at the same speed as the preceding paper, and the exposed adhesive layer 7 is removed as shown in FIG. 3e.
Paste it on the preceding paper 13.

As a result, the paper end 9 of the trailing paper 8 begins to run together with the leading paper 13, and at the same time, the tape 1 is separated at the plurality of holes 5 and the notches 6 and is smoothly rewound, as shown in FIG. 3F.

In this case, in the second invention, since the upper adhesive layer 7 on the lower paper surface 11 side has completely lost its adhesiveness, the paper edge 9 of the succeeding paper 8 is pasted to the preceding paper 13. At this time, there is no possibility that this part will adhere to the leading paper 13, and therefore, when the paper end 9 starts running together with the leading paper 13, the tape 1 will be reliably glued to the plurality of holes 5 and notches 6 by the tensile force caused by the running of the leading paper 13. It can be cut at the , allowing for smooth paper joining.

As mentioned above, the invention significantly improves workability by pasting only the tape 1 without bonding multiple tabs as in the past, and making the tape 1 have the same function as the conventional tabs. The work time required by skilled workers can be cut in half.

Further, in the present invention, since the tape 1 is attached to all the edges of the succeeding paper 8, there is no problem of the edges of the paper curling up during high-speed operation, and failures in paper splicing can be eliminated.

Effects of the Invention As described above, the first invention is a double-sided adhesive tape with a plurality of holes drilled in a straight line, and has a simple structure and is easy to handle.

Furthermore, by using the first invention, the second invention eliminates the need for gluing multiple tabs together, which has been considered indispensable in the past. Since this can be accomplished without failure, the efficiency of paper splicing work can be greatly improved.

[Brief explanation of the drawing]

Figure 1 is a sectional view of an embodiment of the first invention, Figure 2 is a plan view of the same, Figure 3 az f is an explanatory diagram of an embodiment of the second invention, and Figure 4 is a conventional paper. An explanatory diagram of the sewing method when joining,
Figure 5 is a side view of conventional tab installation, Figure 6 is a plan view of the same,
FIG. 7 is an explanatory diagram of paper curling at the trailing paper edge. 1: Tape, 2: Double-sided adhesive tape, 3: Upper release paper, 4
: Lower release paper, 5: Hole, 6: Notch, 7: Adhesive layer, 8
following paper, 9: paper edge, 10: paper edge, 11: lower paper, 12: inorganic powder, 13: leading paper.

Claims (2)

[Claims] (1) A paper splicing tape characterized by having a plurality of linear holes and/or cuts formed in a double-sided adhesive tape. (2) In paper splicing on offset rotary presses, off-machine coating machines, etc., double-sided adhesive tape has multiple holes and/or
Or, paper splicing tape with cuts formed in it was adhered to the paper edge surface and the paper surface below it by aligning the center line of the multiple holes or the cut line with the edge of the paper edge of the succeeding paper. After that, after the adhesive layer on the upper part of the tape adhered to the surface of the lower paper has lost its adhesiveness, the remaining adhesive layer on the upper part of the edge of the paper is adhered to the preceding paper, and at the same time as the edge runs along with the preceding paper, 1. A method of using a paper splicing tape, characterized in that the part of the tape adhered to the side paper is cut with a plurality of holes and/or incisions.