JP2003094590A - Method for laminating printing sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce wastes at the time of cutting a printing sheet of a continuous strip-like material without being apparent at a positional deviation of cutting in the case of cutting the sheet by laminating the sheet on a material to be coated and cutting the sheet in a desired length to a laminate. SOLUTION: A method for laminating the printing sheet comprises the steps of laminating the printing sheet 11 of the continuous strip-like material on a material 12 to be coated to an intermediate laminate 13, then shortly cutting the sheet to the short-sized laminate 10 of the desired length. When the printing sheet having a profile part of a printing pattern 1 becomes a cutting position C is used, the pattern is made to have a gradation region 1g which is changed in a longitudinal direction over both sides of the cutting position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing sheet laminating method for laminating continuous strip-shaped printing sheets on an adherend to produce a laminate of short products.

[0002]

2. Description of the Related Art A laminated sheet obtained by pasting a printing sheet on which a printed pattern representing a pattern, a character, an image, or the like is printed and then cut to a desired length is used for various purposes. For example, in a building material application, a printed sheet that is a decorative sheet is laminated on a wooden board, a resin board, or the like to finally obtain a laminate having a desired length. It is used for surface decoration of interior and exterior materials and fittings. For example, as a wall material, it is used as a wall panel or the like.

Here, FIG. 4 is a plan view (front view) conceptually showing an example of a laminate 20 and a printed pattern 1 thereof assuming a wall panel or the like for building materials. The printed pattern 1 of the vertically long laminated body 20 illustrated in the same drawing is a linear strip-like pattern which is continuous over the entire width on the lower side, and the lower contour of which is in contact with the lower cut end E of the laminated body 20. is there. In the wall surface of the building given as an example, such a strip-shaped printed pattern is also called a border pattern.

The laminated body 20 having the printed pattern shown in FIG. 4 can be mass-produced with high productivity by the laminating method conceptually illustrated in the explanatory view of FIG. Note that FIG.
5A is a side view and FIG. 5B is a plan view. In the stacking method shown in the figure, the stack 20 is formed by stacking a continuous strip-shaped print sheet 21 on which a printed pattern is formed on a continuous strip-shaped or a long-sized adherend 22 with a pressing roller 31 or the like to form an intermediate stack. Body 23
After that, the intermediate laminated body 23 is cut in the width direction of the printing sheet 21 by a cutter 32 or the like, so that a desired laminated body 20 having a shorter length than the intermediate laminated body can be obtained. Done.

[0005]

However, when the printed pattern on the laminated body is in contact with the cut edge E of the laminated body as shown in FIG. 4, there is a problem that the misalignment tends to be conspicuous.
Various types of misalignment include misalignment due to the accuracy of printing on the print sheet, misalignment due to expansion and contraction of the print sheet when laminated to the adherend, or misalignment when cutting the intermediate laminate after lamination. There are misalignments, and these misalignments have an overall effect on the final laminate.

The plan view of FIG. 6 is an explanatory view exaggeratedly showing the case where the positional deviation occurs in the laminated body. In the case of FIG. 6, at the cutting position C1 related to the stacked body 20a,
This is an example in which a margin F1 is formed between the printed pattern 1 on the laminated body 20a and the cutting edge E of the laminated body 20a because the printed pattern 1 is cut at a position slightly away from the printed pattern 1. Further, at the next cutting position C2 where the laminated body 20a and the next laminated body 20b are separated from each other, since a part of the printed pattern 1 of the next laminated body 20b is cut and cut, a part of the printed pattern is cut off. This is an example in which a defect F2 remains in the vicinity of the other cut end E1 (left side in the drawing) of the previous laminate 20a. In addition, the laminated body 2
0b is not conspicuous at the cutting position C2 because the band width of the band-shaped printed pattern 1 is slightly reduced.

If the printed pattern is a pattern that extends over both sides of the cut end of the laminate 20, the occurrence of such defects is not noticeable even if the positional deviation occurs. This is because, as shown in the plan view of FIG. 7, the print pattern divided into each laminate 20 at the cutting position C can be used as each print pattern 1. Therefore, even if the cutting position C is deviated, there is no room for a defect such as a margin. However, the printed pattern depends on the application, and as a practical matter, such a printed pattern cannot be applied to all the laminates in terms of design expression.

Therefore, in order to manufacture the laminated body 20 having the printed pattern 1 illustrated in FIG. 4 so that even if the positional deviation occurs, it is not conspicuous and the appearance is not spoiled.
As shown in the plan view of FIG.
A cutting allowance (called a discarding plate or the like in the plate material) 24 is secured between 0 and stacking is performed. However, this stacking method is a desirable method in that the cutting margin, which is a stack of the printing sheet and the adherend, wastes resources, resulting in high cost, and a large amount of waste. There wasn't.

That is, an object of the present invention is to provide a laminate method in which a continuous strip printing sheet is laminated on an adherend to form an intermediate laminate, and then the laminate is cut into a desired short laminate.
Even if there is a printed pattern on the cutting edge, the positional deviation of the cutting is not noticeable, and the waste at the time of cutting is reduced.

[0010]

In order to solve the above problems, therefore, in the method for laminating printed sheets according to the present invention, a continuous strip-shaped printed sheet having a printed pattern is formed into a continuous strip-shaped or long strip-shaped printed sheet. After being laminated on an adherend to form an intermediate laminate, the intermediate laminate is cut in the width direction of the printing sheet,
In the method for obtaining a laminate of short products, when a print sheet in which a contour portion of a print pattern is at the cutting position is used, the print pattern has a gradation region that changes in the longitudinal direction across both sides of the cutting position. A patterned printed sheet was used.

By adopting such a method, even if there is a printed pattern on the cut end of the laminate, the positional deviation of the cutting is not noticeable, and the waste during cutting can be reduced. This is because the contour portion of the print pattern at the cutting position is used as a gradation area, and that portion is visually blurred. For this reason, if the deviation of the cutting position is within this gradation area, no margin is generated between the cutting edge of the laminate and the contour of the printed pattern when the cutting position is displaced in the direction far from the printed pattern. On the contrary, when the cutting position is shifted in the direction of entering the print pattern, a part of the print pattern that has entered the adjacent laminated body is a gradation region, and therefore even if the pattern exists, it is visually recognized. Because it is inconspicuous. Since such a gradation area is provided in the printed pattern, the positional deviation is not conspicuous without securing a cutting allowance, so that waste during cutting can be reduced.

Further, the method of laminating the printing sheets of the present invention is
In the above configuration, further, the printed pattern is a linear strip that is parallel to the width direction of the printed sheet and continuous over the entire width,
It was configured.

By adopting such a method, it is possible to make the positional deviation inconspicuous and to reduce the waste (cutting margin) at the time of cutting even in the above-mentioned printed pattern in which the positional deviation is particularly noticeable. In addition, since the printed pattern having such a geometrical characteristic gives a linear feeling and is adjacent to the cut end of the laminate, the positional deviation of the cut end becomes more noticeable.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

[Cutting Position and Printed Pattern] FIG. 1 is an explanatory view conceptually showing, in one form, the method for laminating printed sheets according to the present invention. 1A is a side view and FIG. 1B is a plan view. That is, in the method according to the present invention, a short object (single sheet)
The laminated body 10 of the above is obtained by laminating a continuous strip-shaped print sheet 11 on which a printed pattern is formed on an adherend 12 of a continuous strip or a long strip by a pressure bonding means such as a pressing roller 31 to form an intermediate laminated body 13. After that, the intermediate laminate 13 is attached to the printing sheet 1
By cutting in the width direction of 1 with a cutting means such as a cutter 32, a desired laminated body 10 having a shorter length than the intermediate laminated body 13 is obtained. However, in the present invention, when the print sheet whose contour portion is the cutting position C is used for the printed pattern 1, the gradation region that changes the printed pattern 1 in the longitudinal direction across both sides of the cutting position C is used. A printed sheet 11 with a pattern of 1 g is used. That is, the cutting position C is within the gradation area 1g of the print pattern 1. Then, even if there is a positional deviation due to a cutting error or the like, if it is within the gradation area, it can be made inconspicuous.

FIG. 2 is a plan view conceptually explaining the relationship between the cutting position C and the printed pattern 1. As shown in the figure, in the present invention, the target print pattern 1 has a gradation changing direction D at the cutting position C in the contour portion thereof.
Gradation area 1 in which g (the direction of the double-headed arrow in the drawing) is the longitudinal direction (of the printing sheet) straddling both sides of the cutting position C
g is provided. Note that the print pattern 1 illustrated here is an example of a linear belt-like pattern that is parallel to the width direction of the print sheet 11 and is continuous over the entire width.

If the portion of the printed pattern 1 other than the gradation region 1g is called the non-gradation region 1n, the printed pattern 1 is composed of the gradation region 1g and the non-gradation region 1n. The "non" gradation area 1n in the present invention means a portion other than the gradation area 1g, and does not mean a so-called gradation-free portion. For example, in the gradation area 1g, while there is a gradation in which the density decreases toward the outside of the printed pattern,
On the contrary, in the non-gradation area 1n, there may be gradations whose density decreases toward the center of the printed pattern.

Of course, the density (hue, lightness, saturation, etc.) in the gradation area 1g increases or decreases because of the density of the print pattern 1 (more accurately, the non-gradation area 1n). This is an increase / decrease in a direction that continuously changes toward the density of the non-print pattern area N (see FIG. 2) that is an area. The density relationship between the printed pattern 1 and the non-printed pattern area N (more accurately, the vicinity of the portion in contact with the printed pattern 1) may be large or small (when the printed pattern 1 has a larger density than the non-printed pattern area). Since the printed pattern 1 has a lower density than the non-printed pattern N), in the gradation area 1g, both the case where the density increases and the case where the density decreases as the printed pattern 1 approaches the non-printed pattern area. It is possible.

Here, as a specific example of the printed pattern, an example of a decorative panel used for the inner wall of a house as a laminated body is as follows. The printed pattern 1 is horizontal and has a linear strip shape and is only on the lower cut end side. The width of the band is 120 mm, and the (gradation) width of the gradation region 1g is 10 mm or the like. Of course, this is just an example, and the present application is not limited to this numerical value. If the gradation width is 10 mm, if the center is set as the target cutting position, even if a positional deviation of ± 5 mm occurs in the longitudinal direction, it can be stopped within the gradation area, and the positional deviation is inconspicuous. However, even if the cutting position extends outside the gradation area, the effect is reduced because the gradation area exists, but the positional deviation is less noticeable than when there is no such area. It should be noted that the width of the gradation region that is preferable for making the positional deviation less noticeable differs depending on the use of the laminate, since the distance at which the gradation region is seen, the degree of attention, and the like may be set to an appropriate width according to those.

The target printed pattern 1 is, as shown in FIG. 1, of course a pattern in which the contour portion of the printed pattern 1 is in contact with all sides of the cutting edge E generated by cutting.
The contour of the printed pattern at a part of the cutting edge E, such as the printed pattern 1 composed of the divided straight lines in FIG. 3A or the zigzag printed pattern 1 composed of the plurality of separated straight lines illustrated in FIG. 3B. It may be a pattern that touches.

However, like the print pattern 1 illustrated in FIG. 1,
Since the pattern that is in contact with the entire width of the cutting edge E is most likely to be misaligned, such a printed pattern has a greater effect of the present invention. Further, as in the printed pattern 1 illustrated in FIG. 1, a linear belt-like pattern that is parallel to the width direction of the printed sheet 11 and continuous over the entire width has a stronger linear feeling, and thus the positional deviation is more likely to occur. It is easily noticeable, and the effect of the present invention is even greater with such a printed pattern. This is because such a printed pattern attracts people's eyes because the printed pattern is a design expression that gives an accent with stability and the like on the wall surface of the building, and thus the positional deviation is easily noticeable.

When the printed pattern 1 is in the form of a strip, the pattern shown in FIG.
As in the printed pattern 1 illustrated in (C), the width of the band may be non-uniform. FIG. 3C shows the case where the contour on the cutting position (cutting end E) side of the strip is a straight line and the other contour is a broken line. When the printed pattern is band-shaped in this way, various types of band shapes can be applied, but the band-shaped shape is a continuous straight line (the line formed by the band center line is a straight line and the band width Is a uniform strip), that is, in the case of a continuous linear strip, the positional deviation is most noticeable, and the effect of the present invention is the greatest in this linear strip printed pattern.

The shape of the cutting position (cutting shape) may be a linear shape parallel to the width direction of the printing sheet (see FIG. 1) or another shape. For example, diagonal line, polygonal line,
For example, a curve.

[Other Printed Patterns] Also, other printed patterns may be present in one laminated body which is a fragile or printed sheet or a short product. For example, in FIG.
The laminated body 10 illustrated in (D) has, in addition to the printed pattern 1 targeted by the present invention, one continuous linear strip-shaped printed pattern 1A at the central portion in the vertical direction.

The other printed patterns are, for example, in the case of building materials such as wall materials, stone patterns, grain patterns, wood patterns, etc., or printed patterns expressing other patterns such as characters, figures and images. is there. Such a print pattern may be provided in the non-print pattern area N where the print pattern 1 targeted by the present invention is not formed, or in the print pattern 1 itself, or in both areas. You can When the print pattern 1 itself (inside) is provided, the non-gradation area or the gradation area can be provided. When it is provided in the gradation area, it is preferable to provide the same (pattern) pattern as the non-gradation area together with the non-gradation area, from the viewpoint that there is no sense of discontinuity. That is, the gradation area referred to in the present invention includes not only the density change as a solid pattern but also the density change accompanied by a pattern such as a pattern.

The print pattern and other print patterns targeted by the present invention may be appropriately selected from known forming methods and materials according to the application. For example, printing methods include gravure printing, silk screen printing, transfer printing,
For example, ink jet printing.

[Printing Sheet and Adherent] The printing sheet 11 is not particularly limited as long as it is a continuous strip, and may be appropriately used depending on the application. For example, the material, the shape, etc. are arbitrary. is there. Similarly, the adherend 12 is not particularly limited as long as it is a continuous strip or a long one, and a material according to the application may be appropriately used. For example, the material and the shape are arbitrary.

For example, taking the adherend as an example, the shape thereof is a plate, a sheet, a columnar body, or the like. As the sheet and the columnar article, a continuous strip-like article (extrusion molded article, etc.) may be used in addition to the long article. Specific examples of the material of the plate include acrylic resin,
Resin plates such as polyolefin resins, inorganic non-metal plates (cement plates, etc.), metal plates, wood plates, etc. Further, the plate may be a flat plate, a bent plate having an L-shaped cross section, a curved plate, or the like. Further, specific examples of the material of the sheet are resin sheets (films) of polyester resin, polyolefin resin, etc., paper, non-woven fabric, metal foil, or a laminated body or composite body thereof. Examples of the material of the columnar material include resin, metal, wood material, inorganic non-metal material and the like.

In the present invention, the "long product" for the adherend and the "short product" for the laminate have a certain standard length. It is not a thing, but a name for explicitly indicating the length relationship between the adherend and the laminate.

[Lamination of Printed Sheet on Adhesive] In order to adhere and laminate the printed sheet 11 on the surface of the adherend 12,
A known laminating method using roller pressure or the like may be used by appropriately using an adhesive or the like depending on the printing sheet, adherend, application, etc.

[Use of Laminate] The use of the laminate obtained in the present invention is not particularly limited. However, it is suitable for applications in which the feature of the present invention that the positional deviation is inconspicuous can be utilized.
Such applications include, for example, the inner and outer walls of buildings,
It is an interior / exterior material for a building such as door interior / exterior surfaces or a vehicle interior / exterior material. Specifically, for example, a wall panel, a partition, a door, or the like.

[0032]

EXAMPLES Next, the present invention will be described in more detail by way of examples.

[Example 1] A continuous strip-shaped transparent polyester resin sheet having a strip width of 120 mm over the entire width in the width direction, of which 10 mm in the downstream portion in the flow direction (on the right side in the drawing in the drawing) has a width of 10 mm. After forming a band-shaped sandy print pattern with dark brown color by gravure printing, which has a gradation area in which the gradation changes so that the density becomes lower toward the side (lower direction in the laminated body),
Further, a beige grain pattern was formed on the entire surface of the resin sheet by gravure printing to obtain a continuous strip-shaped printed matter. The strips (centers) of the strip-shaped printed pattern are 100 cm apart in the flow direction. Further, a white polyolefin resin sheet was attached to the back surface of this printed material by a dry lamination method using an adhesive for dry lamination, and a continuous strip-shaped printing sheet 11 was obtained as a decorative sheet.

Next, as shown in FIG. 1, the continuous strip-shaped printing sheet 11 is used as an adherend 12 of a long material and has a length of 400.
cm, width 80 cm, attached to a wood board with a polyurethane adhesive to form an intermediate laminate 13, and then the intermediate laminate 13 is formed into a straight line parallel to the width direction of the printing sheet and with a printed pattern. The middle portion of the gradation region in the flow direction was cut as a cutting position target to obtain a laminate 10 having a length of 100 cm. No cutting allowance was provided. The obtained laminated body 10 has a continuous linear strip-shaped printed pattern 1 having the entire width in the width (horizontal) direction at the lower cutting edge E as illustrated in FIG. 1 (B). The lower side of the printed pattern 1 was in contact with the cut edge E, but no margin was generated and the positional deviation was not noticeable. On the other hand, the cut portion 1ga of the gradation area in the above-mentioned printed pattern was also slightly in the form of a continuous linear strip at the upper cut edge, but it was not noticeable.

[Example 2] Contrary to Example 1, a transparent polyester resin sheet was attached to the surface side of a lower polyolefin resin sheet on which a pattern was printed to form a continuous strip similar to that of Example 1. A printed sheet was prepared, and a laminate was prepared in the same manner as in Example 1 except that this printed sheet was used without cutting margin. The positional deviation of the obtained laminated body was not conspicuous as in Example 1.

[0036]

(1) According to the printing sheet laminating method of the present invention, even if there is a printed pattern on the cut end of the laminated body, the positional deviation of the cutting is not noticeable. Further, even if the cutting allowance is not secured, the positional deviation is not conspicuous, so that waste during cutting can be reduced. (2) In particular, if the strip-shaped printed pattern is a straight strip that is parallel to the width direction of the print sheet and continuous over the entire width, the positional deviation is particularly noticeable, but even in such a case, , Misalignment is not noticeable. Also,
Even if the cutting allowance is not secured, the positional deviation is not noticeable, so it is possible to reduce waste during cutting.

[Brief description of drawings]

FIG. 1 is an explanatory view conceptually explaining a method of laminating printed sheets according to the present invention.

FIG. 2 is a plan view conceptually illustrating a relationship between a cutting position and a printed pattern according to the present invention.

FIG. 3 is a plan view illustrating various examples of printed patterns to which the present invention is applied.

FIG. 4 is a plan view (front view) conceptually explaining an example of a printed pattern in a laminated body in which printing sheets are laminated.

FIG. 5 is an explanatory view conceptually explaining a conventional method of stacking printed sheets.

FIG. 6 is a plan view conceptually explaining a defect due to a positional shift in the conventional stacking method.

FIG. 7 is a plan view illustrating an example of a printed pattern in which misalignment is not noticeable by a conventional stacking method.

[Fig. 8] In order to make the positional deviation inconspicuous by the conventional lamination method,
The top view which explains notionally an example which secures a cutting allowance.

[Explanation of symbols]

1 print pattern 1A Print patterns not covered 1g gradation area 1ga gradation area division 1n non-gradation area 10 stacks 11 printed sheets 12 Adherend 13 Intermediate laminate 20, 20a, 20b laminate 21 Printing sheet 22 Adherend 23 Intermediate laminate 24 Cutting fee 31 pressing roller 32 cutters C, C1, C2 cutting position Change direction of Dg gradation E, E1 cut end F1, F2 defective N Non-printed pattern area

Claims (2)

[Claims] 1. A continuous strip printing sheet having a printed pattern formed thereon is laminated on an adherend of a continuous strip or a long strip to form an intermediate laminate, and the intermediate laminate is formed on the printing sheet. In the method for obtaining a laminate of short products by cutting in the width direction at the time of using a printing sheet in which the contour portion of the printed pattern is at the cutting position, the printed pattern is spread across both sides of the cutting position. A method for laminating printed sheets, which uses a printed sheet having a pattern having gradation regions that change in the longitudinal direction. 2. The printed pattern is a linear strip that is parallel to the width direction of the printed sheet and continuous over the entire width.
A method for laminating a printing sheet as described above.