JP4085581B2 - Recording medium and manufacturing method thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a recording medium having a feature on a cut end face of a sheet. In particular, the present invention relates to a recording medium in which paper dust does not adhere to the cut end surface of the cut paper, the paper feeding and image recording are performed well, and nozzle clogging does not occur.
[0002]
[Prior art]
FIG. 3A is a diagram showing a cutting state when a sheet is cut by a guillotine cutting machine, and FIG. 3B is a diagram showing a large sheet (hereinafter referred to as “base paper”) of eight recording media. It is the figure which showed the cutting state when cutting to a magnitude | size. Conventionally, normally used size paper such as A4, B4, A3, etc., is a cutting machine using a single-edged cutting blade as shown in FIG. It was cut by the machine. However, when recording a large number of sheets using the cut paper, the paper feed may be misaligned or may not function at all in severe cases. In addition, white spots may appear in recorded characters and images.
[0003]
[Problems to be solved by the invention]
Accordingly, the present inventors have investigated the cause of the problem and found that the following occurs, which causes the above problems. As shown in FIG. 3A, the cutting blade (single blade) 31 of the guillotine cutting machine is a surface parallel to the cutting direction, that is, a surface perpendicular to the surface of the paper to be cut (hereinafter referred to as “right-angled blade surface”). 32 and a surface (hereinafter referred to as “inclined blade surface”) 33 inclined with respect to the cutting direction. The end surfaces of the sheets P, P cut by the single blade 31 are an end surface (right angle end surface) (a) in contact with the right angle blade surface 32 and an end surface (inclined end surface) (b) in contact with the inclined blade surface 33. In the case of cutting, as shown in FIG. 3B, a right-angled end face A and an inclined end face B were generated on the four sides of each of the cut sheets A to H. In the right-angled end surface A, the cut end surface and the cutting blade surface are substantially parallel, the end surface is hardly affected by the blade surface, and the end surface is a surface substantially perpendicular to the paper surface. On the other hand, in the inclined end face b, since the slanted blade surface pushes the cut end surface, the corner on the side where the blade enters is crushed to become a sag angle, and the corner on the side where the blade comes off is rubbed and dragged by the blade surface. The paper fibers thus protruded in a “burr shape” or adhered to the inclined end face b as paper dust 34.
[0004]
In order to perform recording using such paper, when the paper is transported to a paper feeding device or a printing device, the paper comes into contact with or is rubbed with a member for positioning or transporting. It has been found that the paper dust 34 attached to the inclined end face b often falls, or even fibers that protrude in the form of burrs that did not fall under normal handling often fall as paper dust 34. .
[0005]
By the way, in the paper feeding device, in order to perform paper feeding and paper separation, the frictional force between the paper and each member is used. However, if the paper dust that has fallen adheres to these members, the paper dust becomes a lubricant. As a result, it was found that the original function of each member was impaired, and in particular, the influence on the sheet feeding force was great and the function was not performed at all. Also, in printing and copying machines, ink and toner get on the paper dust when the paper dust re-adheres to the paper surface, and white spots are generated when the paper dust falls off, resulting in loss of print quality and copy quality. It was found that there was a problem that Further, it has also been found that the printing apparatus has a problem that the fallen paper dust adheres to the nozzles of the print head and hinders ink ejection.
[0006]
The present invention has been made in view of the above-described problems, and an object of the present invention is to prevent paper dust from being generated from the paper so that the paper can be fed satisfactorily and white spots can be prevented. It is an object to provide a recording medium capable of recording with good image quality and to eliminate the adhesion of paper dust that hinders ink ejection, and to provide a method for manufacturing such a recording medium.
[0007]
[Means for Solving the Problems]
The present invention is characterized in that all the end faces of the paper form a right-angle end face, and the base paper is cut so as to form all the end faces of the paper by the right-angle blade face of the guillotine cutting machine cutting blade. It is characterized by that.
[ 0008 ]
A recording medium manufacturing method according to the present invention is a method of manufacturing a plurality of recording media by cutting a base paper perpendicularly to the surface of the base paper with a guillotine cutter, and a plurality of recording media arranged in a plurality of columns and a plurality of rows. And a first step of cutting the base paper in such a state that the right-angled blade surface of the cutting blade hits from the outside along the outer periphery of the rectangle of the size of the aggregate formed by the cutting portions existing between the recording media, A second step of cutting a rectangle of the size of the aggregate along each row or a width obtained by adding a margin to each row, each row or each by an inclined blade surface of the cutting blade at the time of cutting in the second step Cut the cut-off part in a state where the right-angle blade surface of the cutting blade hits from the outside along the width corresponding to the cut-off part from the inclined end surface formed on one side of the rectangle with the width of the cut line added to the row In the third and third steps of cutting and removing Cut the cut rectangles along the width of each row or line along the width of each row plus the width of the cut line, and cut from the inclined end face on one side of each cut sheet obtained from the fourth step. All of the end faces are right-angled end faces, comprising a fifth step of cutting and removing the cutting edge part in a state where the right-angled blade surface of the cutting blade hits from the outside along the inner side by the width corresponding to the part. A method for manufacturing a recording medium.
[ 0009 ]
The recording medium manufacturing method according to the present invention is a method of manufacturing a plurality of recording media by cutting a base paper perpendicularly to the surface of the base paper with a guillotine cutting machine, and a plurality of sheets arranged in a plurality of columns and a plurality of rows. First cutting the base paper in such a state that the right-angled blade surface of the cutting blade hits from the outside along the outer periphery of the rectangle of the size of the aggregate formed by the recording medium and the cutting portion existing between the recording media A step, a second step of cutting a rectangle of the size of the aggregate along each line or a width obtained by adding a cutting portion to each row, and by cutting the inclined blade surface of the cutting blade in each row or each row in the second step Cut and remove the cutting edge from the inclined end surface formed on one side of the rectangle with the width of the cutting edge along the inside corresponding to the width of the cutting edge so that the cutting edge of the cutting blade hits from the outside. 3rd process, 3rd 4th step of cutting the rectangle of each row width cut in the step along the width of each column or each column plus a margin, and an inclined end surface existing on one side of each cut sheet obtained from the 4th step All the end faces are characterized by comprising a fifth step of cutting and removing the cutting edge part in a state where the right-angled blade surface of the cutting blade hits from the outside along the inner side by the width corresponding to the cutting edge part from A manufacturing method of a recording medium which is an end face.
[ 0010 ]
Further, the method for producing a recording medium according to the present invention is characterized in that the base paper has an ink receiving layer at least on the surface of the substrate, whereby a recording medium with good character / image recording is obtained. can get.
[ 0011 ]
The recording medium manufacturing method according to the present invention is characterized in that the recording medium is for inkjet recording, and a usable recording medium can be obtained without ink clogging due to paper dust.
[ 0012 ]
DETAILED DESCRIPTION OF THE INVENTION
In the following, the present invention will be described in more detail with reference to the drawings. FIG. 1 is a diagram showing the first to third steps in one embodiment of the manufacturing method of the present invention, and FIG. 2 shows the fourth and fifth steps in one embodiment of the manufacturing method of the present invention. FIG. 3 is a diagram illustrating a sheet cutting state in a conventional recording medium manufacturing method.
[ 0013 ]
In FIG. 1A, in order to obtain eight recording media 2 from the base paper 1, the recording media 2 arranged in four columns and two rows and the “cutting portion” 3 required between the recording media 2 are shown. The “cutting portion” 3 obtained by the first step of cutting the base paper 1 in such a state that the right-angle blade surface of the cutting blade hits from the outside along each side of the rectangle having the width and length formed by An assembly 4 of recording media 2 having is shown. Each end face of the rectangular outer periphery of the assembly 4 obtained in the first step is a right-angle end face (A).
[ 0014 ]
In FIG. 1 (b), a state in which the right-angled blade surface of the cutting blade hits the first row along the cutting line (solid line) 5 between the first row and the second row. The “separated portion” 3 is further provided along one side of the four-sheet binding body 7A and the four-sheet binding body 7A of the recording medium 2 having the “separation portion” 3 therebetween obtained by the second step of cutting the assembly 4. A state in which a four-sheet spelling body 7B having “” is obtained is shown. The two four-sheet binding bodies 7A and 7B of the recording medium 2 obtained by the second step are such that the outer peripheral end face of one four-sheet binding body 7A is a right-angle end face (A), whereas the other As for the outer peripheral end surface of the four-sheet binding body 7B, only the side formed by the cutting in the second step is an inclined end surface (b).
[ 0015 ]
Next, in FIG. 1C, along the cutting edge (broken line) 6 that is the inner side of the width of the “cutting portion” along the inclined end surface (B) of the four-sheet binding body 7B having the inclined end surface (B). Two quadruple binding bodies 7A obtained by the third step of cutting with the right-angled blade surface of the cutting blade hitting from the outside are shown. By cutting in the third step, two four-sheet binding bodies 7A whose outer peripheral end faces are all right-angle end faces (A) are obtained.
[ 0016 ]
In FIG. 2 (d), it is obtained by a fourth step of cutting the two four-sheet binding bodies 7 </ b> A along the cutting line (solid line) 5 in a state where the right-angled blade surface of the cutting blade hits the left side. Eight sheets are shown. Of the 8 sheets obtained by the cutting in the fourth step, 2 sheets (2A) are recording media whose outer peripheral end faces are all right end faces (A), but the remaining 6 sheets (2B) are the second ones. The recording medium has a “cutting portion” 3 whose sides formed by cutting in four steps are inclined end faces (b).
[ 0017 ]
FIG. 2 (e) next shows the inclined end faces (b) of the six recording media 2 </ b> B having the “cutting portion” 3 whose one side is the inclined end face (b) obtained in the fourth step. 6 recording media obtained by the fifth step of cutting along the cutting line (broken line) 6 on the inner side by the width of “cutting line” 6 in a state where the right-angled blade surface of the cutting blade hits from the outside. 2A is shown. The six recording media 2A obtained by the cutting in the fifth step all have an outer peripheral end face that is a right end face (A).
[ 0018 ]
In the eight recording media obtained in the first to fifth steps, since the outer peripheral end surfaces are all right-angled end surfaces, paper dust does not adhere to all the end surfaces of the recording media, and the fibers are not Since it does not protrude in the form of burrs from all end faces of the recording medium, even if the recording medium is transported to the paper feeding device and the printing device, paper dust does not fall from the recording medium, and transport is also possible. This is done well, and no white spots occur in the recorded image. Furthermore, the nozzles are not clogged by the scattered paper dust.
[ 0019 ]
The method for manufacturing eight recording media arranged in four columns and two rows from the base paper has been described above. However, a recording medium arranged in many columns and many rows using the same cutting method has been described. Can be cut.
[ 0020 ]
Examples of the “base paper” in the present invention include a sheet obtained by cutting a continuous sheet into a length of about 1 to 2 m, or a sheet in which an ink receiving layer, a glossy layer and the like are formed on the sheet.
[ 0021 ]
【The invention's effect】
In the present invention, as described above in detail, since all end faces of the recording medium form right-angle end faces, paper dust does not adhere to all end faces, and fibers are burred from all end faces. Therefore, even if the recording medium is transported to the paper feeding device and the printing device, paper dust does not fall from the recording medium, and the recording is performed well. There is no white spot. In addition, the nozzles are not clogged by the scattered paper powder, and other excellent effects can be obtained.
[Brief description of the drawings]
FIG. 1 is a diagram showing first to third steps in an embodiment of a recording medium manufacturing method of the present invention.
FIG. 2 is a diagram showing fourth and fifth steps in an embodiment of the recording medium manufacturing method of the present invention.
FIGS. 3A and 3B are diagrams illustrating a cutting state of a sheet in a conventional recording medium manufacturing method, wherein FIG. 3A is a diagram illustrating a state where the sheet is cut by a guillotine cutting machine, and FIG. 3B is a cut sheet; It is a figure which shows the kind of cut surface of an edge part.
[Explanation of symbols]
1 Base paper 2 Recording medium 3 Cutting margin 4 Aggregate 5 Cut line (solid line)
6 Cut line (broken line)
7A Four-sheet binding body 7B Four-sheet binding body 31 having a margin on one side Single-edged blade 32 Right-angled blade surface 33 Inclined blade surface 34 Paper dust

Claims (4)

  In a method of manufacturing a plurality of recording media by cutting a base paper perpendicularly to the surface of the base paper with a guillotine cutting machine, a plurality of recording media arranged in a plurality of rows and a plurality of rows, and a cut-off portion existing between the recording media A first step of cutting the base paper in such a state that the right-angled blade surface of the cutting blade hits from the outside along the outer periphery of the rectangle of the aggregate size formed by Or the 2nd process of cutting along the width which added the margin part to each row, the rectangle of the width which added the margin part to each row or each row by the inclined blade surface of the cutting blade at the time of the cutting in the second step In the third step and the third step of cutting and removing the cutting portion in a state where the right-angled blade surface of the cutting blade hits from the outside along the inner side by a width corresponding to the cutting portion from the inclined end surface formed on one side Cut the rectangle of each column width into each row or A fourth step of cutting along the width of each row along the width of the cut portion, and a cutting blade along the inner side by the width corresponding to the cut portion from the inclined end surface present on one side of each cut paper obtained from the fourth step A method for producing a recording medium, wherein all the end faces are right-angled end faces, comprising a fifth step of cutting and removing a cutting margin in a state where the right-angled blade faces come into contact with the outside.   In a method of manufacturing a plurality of recording media by cutting a base paper perpendicularly to the surface of the base paper with a guillotine cutting machine, a plurality of recording media arranged in a plurality of rows and a plurality of rows, and a cut-off portion existing between the recording media A first step of cutting the base paper in a state in which the right-angled blade surface of the cutting blade hits from the outside along the outer periphery of the rectangle of the size of the aggregate formed by the above, each row of rectangles of the size of the aggregate The second step of cutting along the width of each row along the width of the cut portion, forming on one side of the rectangle of the width obtained by adding the cut portion to each row or each row by the inclined blade surface of the cutting blade at the time of cutting in the second step Each of the rows cut in the third step and the third step of cutting and removing the cutting portion in a state where the right-angled blade surface of the cutting blade hits from the outside along the inner side by the width corresponding to the cutting portion from the inclined end surface A rectangle of width 4th step of cutting along the width of each row plus the cut-off portion, cutting along the inner side by the width corresponding to the cut-off portion from the inclined end surface present on one side of each cutting paper obtained from the 4th step A method for producing a recording medium, comprising: a fifth step of cutting and removing a cutting margin in a state where a right-angled blade surface of the blade hits from the outside, wherein all end surfaces are right-angled end surfaces.   3. The method for producing a recording medium according to claim 1, wherein all of the end faces are right-angle end faces, wherein the base paper has an ink receiving layer at least on the surface of the substrate.   The manufacturing method of the recording medium whose all end surfaces in any one of Claims 1-3 are right-angled end surfaces for the said recording media for inkjet recording.

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