JP4752611B2 - Multi-layered laminated paper with crevices - Google Patents

Description

  The present invention relates to a multi-layered laminated paper which has been provided with at least three layers.

  It is necessary to prevent counterfeiting and alteration of valuables such as banknotes and securities. Examples of means for preventing forgery and alteration include squeezing and multilayered laminated paper. The penetration is given at the paper manufacturing stage. The penetration is usually a technique that cannot be confirmed with reflected light but can be confirmed with transmitted light. In addition, multilayer laminated paper is provided with an intermediate layer in order to provide an anti-counterfeiting element within the paper layer, and an optical, electrical or magnetic specific substance is applied to the intermediate layer to improve anti-counterfeiting. ing.

  For example, a sheet is inserted into an intermediate layer of multilayer laminated paper on an endless paper web of a paper machine, and sandwiched by multiple raw material laminar flows to form a multilayer wet web on the endless paper web, Is a multi-layered paper or a multi-layered paper in which letters or designs are formed by holes in the intermediate layer, which is formed by mixing or printing any one or more of specific optical, electrical or magnetic substances in advance. Techniques relating to laminated paper, a method for producing the same, and an apparatus for producing multilayered laminated paper are disclosed. In addition, it is described that black-and-white squeeze is given to the multi-layered laminated paper (Patent Document 1).

Japanese Patent Laid-Open No. 2003-13395 (first page, FIG. 1-9)

  However, if a multilayer laminated paper with an anti-counterfeiting element (printing, etc.) on an intermediate layer provided with a material that attenuates the amount of transmitted light, such as nonwoven fabric, is applied to the intermediate layer sheet, the clearance does not occur. When the applied multi-layered paper is observed with transmitted light, the amount of transmitted light of the multi-layered paper itself is attenuated by the sheet of the intermediate layer that attenuates the transmitted light. There was a problem that the sharpness of the container was lowered. In addition, the multi-layered laminated paper has a problem that peeling occurs from the interface between the intermediate layer sheet and the upper layer or the lower layer because the bonding force between the intermediate layer sheet and the upper layer or the lower layer is weak. Furthermore, there has been a problem that peeling of the intermediate layer from the inside of the sheet occurs.

  The present invention aims to solve the above-described problems. When a multilayer laminated paper composed of an upper layer, an intermediate layer, and a lower layer is creased, the amount of transmitted light is attenuated in the intermediate layer. Even when a non-woven fabric is provided, the clearness of penetration observed with transmitted light does not decrease, and there is no problem of peeling from the interface between the intermediate layer sheet and the upper or lower layer and the intermediate layer sheet. The present invention proposes a multi-layered laminated paper that is provided with a gap that can be provided with an anti-counterfeiting element in an area other than the opening of the sheet of the intermediate layer.

  The present invention relates to a multi-layered paper made of an upper layer, an intermediate layer made of non-woven fabric, and a lower layer, the multi-layered paper made of a slit applied to the upper layer and / or the lower layer and an opening made to the intermediate layer. And the opening is arranged corresponding to the area of the clearance applied to the upper layer and / or the lower layer.

  The present invention also relates to a multilayer laminated paper composed of an upper layer, an intermediate layer made of nonwoven fabric, and a lower layer, wherein the multilayer laminated paper is applied to the upper layer and / or the lower layer and the intermediate layer. An opening, and the opening is arranged corresponding to the area of the clearance applied to the upper layer and / or the lower layer and at least corresponding to the area other than the area of the clearance applied to the upper layer and / or the lower layer It is a multi-layered laminated paper with a squeeze, characterized in that one is placed.

  Further, the intermediate layer of the present invention is a multilayered laminated paper with a squeeze characterized in that any one or more of optical, electrical or magnetic specific substances are mixed or printed. is there.

  In addition, the opening of the present invention is a multi-layered laminated paper having a clearance applied to a region other than a region where one or more optical, electrical or magnetic specific substances are mixed or printed. It is.

  The present invention is a multi-layered laminated paper having at least three layers of clearance, and an opening is provided in an intermediate layer sheet in an area of the clearance to be applied to an upper layer and / or a lower layer. The upper layer paper material and the lower layer paper material in the crease area are integrated with each other because the intermediate layer sheet is not applied by the opening. Therefore, the area provided with the openings of the multi-layered laminated paper that has been creased is joined by the upper layer material and the lower layer material, so that the interface between the intermediate layer sheet and the upper or lower layer and It becomes difficult to peel the intermediate layer from the inside of the sheet.

  If an attempt is made to peel off forcefully, the multi-layered laminated paper is destroyed, so that forgery and tampering due to peeling can be prevented.

  Furthermore, since the sheet | seat of the intermediate | middle layer which consists of a nonwoven fabric which attenuate | damps the transmitted light amount is not given by the opening part in the area | region of penetration, the transmitted light amount is not attenuated by the intermediate layer. Therefore, the clearness of the penetration does not decrease when the multilayered laminated paper subjected to the penetration is observed with transmitted light, even though it is a multilayered laminated paper. In addition, the opening of the sheet of the intermediate layer is made of only fibers, so that it is easy to insert. The multi-layered laminated paper to which the penetration of the present invention has been applied has a marked improvement in the clearness of the penetration compared to the multi-layered laminated paper having no opening in the intermediate layer. As a matter of course, the multi-layered laminated paper that has been creased is provided with an intermediate layer sheet, so that an anti-counterfeiting element can be applied to a region other than the opening.

  The best mode for carrying out the present invention will be described with reference to the drawings. However, the present invention is not limited to the best mode for carrying out the invention described below, and includes various other embodiments within the scope of the technical idea described in the scope of claims.

(Multi-layered laminated paper)
The present invention relates to a multilayer comprising a lower suspension-like paper layer obtained from a preceding paper stock, an intermediate layer provided with openings, and an upper suspension-like paper layer obtained from a rear stock on a papermaking net. It is a laminated paper, and the upper layer and / or the lower layer is creased, and the openings provided in the intermediate layer are arranged in the crease area applied to the upper layer and / or the lower layer, and are sequentially layered. It is a multi-layered laminated paper that has been formed by drying and formed into a gap. Multi-layered laminated paper with a lower layer is shown below.

  FIG. 1 shows a lower paper layer 1 having a clearance 5 made of a lower suspension paper layer obtained from a preceding paper material, a sheet 2 serving as an intermediate layer having an opening 4a, and a rear paper material. The upper layer paper layer 3 which consists of the obtained upper layer suspension-like paper layer is the multilayer laminated paper A1 to which the slot 5 was laminated | stacked one by one, and its sectional drawing.

  The opening 4a of the sheet 2 of the intermediate layer is disposed in a state of surrounding the region 5a of the clearance 5 of the lower paper layer 1. Here, the area 5a of the clearance 5 includes the entire area of the clearance 5 and the surrounding area. The paper of the upper paper layer 3 and the paper of the lower paper layer 1 in the area of the clearance 5 are the paper of the upper paper layer 3 which is a suspension because the sheet 2 of the intermediate layer is not applied by the opening 4a. The material enters the lower layer, the material of the lower paper layer 1 that is a suspension enters the upper layer, the area of the opening does not become a cavity, and the material of the upper paper layer and the material of the lower paper layer are integrated. The fibers are bonded together. Therefore, peeling due to the sheet 2 of the intermediate layer becomes difficult.

  Further, since the area of the opening including the area 5a of the clearance 5 is not provided with the sheet 2 of the intermediate layer, the basis weight of the stock of the upper paper layer and the lower paper layer is constant. The paper layer is slightly thinner than. Moreover, it will be in the state formed only in a fiber in the opening part 4a. Therefore, when the multi-layered laminated paper A1 with the clearance 5 is observed with transmitted light, the transmitted light amount is not attenuated by the sheet 2 of the intermediate layer that attenuates the transmitted light amount of a nonwoven fabric or the like. The penetration 5 can be clearly confirmed by the penetration made only with the fibers.

  FIG. 2 shows a lower layer paper layer 1 having a clearance 5 made of a lower suspension-like paper layer obtained from a preceding paper, an intermediate layer sheet 2 having openings 4a and 4b, and a rear sheet. The upper layer paper layer 3 which consists of the upper layer suspension-like paper layer obtained from a raw material is the multilayer laminated paper A2 to which the slot 5 was laminated | stacked one by one, and its sectional drawing.

  The opening 4a of the sheet 2 of the intermediate layer is disposed in a state of surrounding the region 5a of the clearance 5 of the lower paper layer 1. Here, the area 5a of the clearance 5 includes the entire area of the clearance 5 and the surrounding area. The opening 4b of the sheet 2 of the intermediate layer is formed in a specific area. Although only one opening 4b is formed in FIG. 2, a plurality of openings 4b may be provided. In addition, the position where the opening 4b is formed is a predetermined area other than the region when one or more of optical, electrical, or magnetic specific substances are mixed or printed on an intermediate layer sheet as described later. It is necessary to apply to the area of the position.

  The paper of the upper paper layer 3 and the paper of the lower paper layer 1 in the area of the clearance 5 are the paper of the upper paper layer 3 which is a suspension because the sheet 2 of the intermediate layer is not applied by the opening 4a. The material enters the lower layer, the material of the lower paper layer 1 that is a suspension enters the upper layer, the area of the opening does not become a cavity, and the material of the upper paper layer and the material of the lower paper layer are integrated. The fibers are bonded together. Furthermore, since the paper of the upper paper layer 3 and the paper of the lower paper layer 1 in the area of the gap 5 is not provided with the sheet 2 of the intermediate layer by the opening 4b, the paper of the upper paper layer 3 is the lower paper layer. The paper material of the lower paper layer 1 enters the upper layer, and the paper material of the upper paper layer and the paper material of the lower paper layer are integrated to bond the fibers. Therefore, peeling due to the sheet 2 of the intermediate layer becomes difficult.

  FIG. 3 shows a case where the multi-layered laminated paper A2 having the gap 5 is forcibly peeled off by hand. Fig.3 (a) shows the case where it peels from the interface of the sheet | seat of an intermediate | middle layer, and an upper layer or a lower layer. In the area of the opening 4a and the opening 4b, the paper material of the upper paper layer 3 enters the lower layer, the paper material of the lower paper layer 1 enters the upper layer, and the paper material of the upper paper layer and the paper material of the lower paper layer are integrated. Since the fibers are bonded to each other, the peeling prevention effect is improved. Therefore, when the multilayer laminated paper A2 is forcibly peeled off by hand, it is not peeled off in the area of the opening 4a and the opening 4b, and therefore it is broken in that area, so that it is peeled off cleanly. There is no. FIG.3 (b) shows the case where it peels from the inside of the sheet | seat of an intermediate | middle layer. In the area of the opening 4a and the opening 4b, the paper material of the upper paper layer 3 enters the lower layer, the paper material of the lower paper layer 1 enters the upper layer, and the paper material of the upper paper layer and the paper material of the lower paper layer are integrated. Since the fibers are bonded to each other, the peeling prevention effect is improved. Therefore, when the multilayer laminated paper A2 is forcibly peeled off by hand, it is not peeled off in the area of the opening 4a and the opening 4b, and therefore it is broken in that area, so that it is peeled off cleanly. There is no.

  The opening 4b applied to the sheet of the intermediate layer is provided at a predetermined position. As shown in FIG. 4, by providing the opening 4b of the multilayer paper A2 in the peripheral portion p (shaded area) of the multilayer paper, the effect of preventing the delamination of the upper layer or the lower layer described later is improved. In the case of forcibly peeling, the upper layer or the lower layer is destroyed.

  Further, since the area of the opening including the area 5a of the clearance 5 is not provided with the sheet 2 of the intermediate layer, the basis weight of the stock of the upper paper layer and the lower paper layer is constant. The paper layer is slightly thinner than. Moreover, it will be in the state formed only in a fiber in the opening part 4a. Therefore, when the multi-layered laminated paper A2 with the clearance 5 is observed with transmitted light, the transmitted light amount is not attenuated by the sheet 2 of the intermediate layer that attenuates the transmitted light amount of a nonwoven fabric or the like. The penetration 5 can be clearly confirmed by the penetration made only with the fibers. FIG. 5 shows a case where the multilayer laminated paper A2 with the gap 5 is observed with transmitted light. As shown in FIG. 5, the gap 5 can be confirmed in the opening 4a.

The sheet 2 of the intermediate layer of the multi-layered laminated papers A1 and A2 subjected to the penetration is a non-woven fabric. The nonwoven fabric is preferably rayon. Basis weight of the sheet is about 10 to 30 g / m ² is preferred. The width of the sheet 2 of the intermediate layer is not particularly limited as long as the openings 4a and 4b are provided. The thickness of a nonwoven fabric consists of about 20-100 micrometers.

  Further, the processing of the openings 4a and 4b of the sheet 2 of the intermediate layer is not particularly limited, and is performed by a processing device such as a laser irradiation device or a die cut. The shapes of the openings 4a and 4b are not particularly limited. As shown in FIG. 6, the shapes of the openings 4a and 4b can be formed by a triangle a, a star b, an ellipse c, a polygon d, or the like. The diameters of the openings 4a and 4b of the sheet 2 of the intermediate layer are preferably about 15 to 74 mm in view of the diameter of the clearance formed on the gift certificate or the like, and preferably about 15 mm or more for preventing peeling.

  As the squeeze 5, general white squeeze, black squeeze or black-and-white squeeze is applied. There is no particular limitation on the method for producing white, black or black and white, and it can be applied by a conventional production device such as a dandy roll or a press roll.

Naturally, a printed pattern can be given to the multilayer laminated paper A1 and A2 subjected to the squeezing by a general printing method. The printing method is not particularly limited.

  The lower suspension-like paper layer obtained from the preceding stock and the upper suspension-like paper layer obtained from the subsequent stock are not particularly limited. For example, plant fibers such as wood and cotton are used. Any pulp such as chemical pulp obtained by the KP method or SP method as a raw material, mechanical pulp such as GP, TMP, CTMP, CGP, and SCP, bleached pulp, and recycled recycled paper can be used.

  In any layer of the multi-layered laminated paper of the present invention, colored fibers or strips, colorless fluorescent fibers or strips, colored fluorescent fibers or strips, magnetic fibers or strips, metal strips It is possible to mix at least one of aluminum strips, fibers or strips having infrared absorption characteristics, fibers or strips having infrared reflection characteristics, thermochromic fibers or strips, and the like. Furthermore, a thread, a plurality of gaps, etc. can be applied. Further, the type or color of the paper material may be different between the paper material of the upper paper layer 3 and the paper material of the lower paper layer 1.

  In particular, the intermediate layer can be provided with an anti-counterfeiting element, and for example, any one or more of optical, electrical or magnetic specific substances can be mixed or printed. In addition, information such as characters and patterns may be given to the intermediate layer by a fine perforation group. Therefore, when the anti-counterfeit element is applied to the intermediate layer in this way, the opening applied to the intermediate layer needs to be applied to a region at a predetermined position other than the region where the anti-counterfeit element is applied.

  Next, an example of alignment of the opening of the sheet of the intermediate layer and the clearance applied to the lower paper layer is shown.

  FIG. 7 is a diagram showing a cross-sectional view taken along the X-X ′ direction when a strip-shaped multi-layered paper manufactured by a multi-layered paper manufacturing apparatus according to the present invention to be described later is observed in the longitudinal direction. In this belt-like multilayer laminated paper B, an intermediate layer sheet 2 provided with an opening 4 includes a lower layer paper layer 1 composed of a lower suspension paper layer and an upper layer suspension obtained from a post paper. A configuration is shown in which the sheets are combined with the upper layer paper layer 3 made of a turbid liquid paper layer and formed integrally in multiple layers. A plurality of openings 4 are processed in advance in the longitudinal direction of the sheet 2 of the intermediate layer at predetermined intervals, or the sheet of the intermediate layer is supplied from an intermediate layer sheet supply device to be described later. The sheet of layers is processed at regular intervals by processing equipment.

  As shown in FIG. 7, the multi-layered laminated paper B is provided with a gap 5. The multilayer laminated paper B has an opening relative to the position r of the gap 5 (in the drawing, it is the position of one corner of the gap 5 but may be a center position if determined in advance). The position q (in the drawing, the position of one corner of the opening 4 is used, but if it is determined in advance, the center position or the like may be used) is defined as the position q of the opening in the longitudinal direction of the multilayer laminated paper B. The opening 4 is defined as a predetermined interval s at the position r of the slot 5, and is defined as a predetermined interval t between the position q of the opening and the position r of the slot 5 in the width direction, so that the slot 5 enters the opening 4. Is inserted and fixed. That is, the sheet 2 of the intermediate layer in which the opening 4 is processed has a predetermined interval s between the position q of the opening in the longitudinal direction of the multi-layered laminated paper B and the position r of the gap 5 or the position of the opening in the width direction. Either one or both of q and a predetermined interval t between the positions r of the gaps 5 are adjusted and inserted. Therefore, the opening 4 coincides with the position of the clearance 5.

(Modification 1)
As shown in FIG. 8, the multi-layered paper B has a register mark made up of white marks or a mark 6 by IJP (inkjet printer) as shown by a cross mark in a predetermined positional relationship with the gap 5. It is given to multiple places at regular intervals in the paper making direction. In the first modification, attention is paid to the register mark or the mark 6 by IJP. The multilayer laminated paper B has an opening position q (the position of one corner of the opening 4 in the drawing) with respect to the position v of the mark 6 (intersection center point of the cross mark). In this case, the center position or the like may be set as a predetermined interval s between the position q of the opening and the position v of the mark 6 in the longitudinal direction of the multilayer laminated paper B, and the position q and the mark of the opening in the width direction. The intermediate layer sheet 2 provided with the opening 4 is inserted and fixed so that the gap 5 enters the opening 4. That is, the sheet 2 of the intermediate layer in which the opening 4 is processed has a predetermined interval s between the position q of the opening in the longitudinal direction of the multi-layered paper B and the position v of the mark 6 or the position q of the opening in the width direction. And / or a predetermined interval t at the position v of the mark 6 is adjusted or inserted. Therefore, the opening 4 coincides with the position of the clearance 5.

  When the multi-layered paper B wound up by the winding device is cut, a predetermined interval is provided from the position of the side of the multi-layered paper to which the cut-off is applied to the position q of the opening. Cut so that.

(Manufacturing equipment)
Next, an apparatus for producing multilayer laminated paper of the best mode for carrying out the present invention will be described with reference to FIG. FIG. 9 is a diagram showing an overall configuration of a multilayer laminated paper manufacturing apparatus. In FIG. 9, the multi-layered laminated paper manufacturing apparatus 7 includes an endless paper-making wire 8 made of a net and circulated. The wire 8 is bridged between the driven pulley 9 and the driving pulley 10, and is supported by a plurality of supporting and guiding rolls arranged inside the wire 8 along the wire 8, and is guided. Has been circulating.

  From the upstream side to the downstream side of the upstream portion 11 of the wire 8 (movement start end portion on the upper surface of the wire), a lower layer paper supply tank 12, an intermediate layer sheet supply device 13, and an upper layer paper supply tank 14 are provided. They are sequentially arranged at intervals.

  The lower layer stock supply tank 12 and the upper layer stock supply tank 14 are filled with a lower suspension stock 15 and an upper suspension stock 16, respectively, and are appropriately supplied from a supply source (not shown). The liquid level is controlled to be maintained at a predetermined level. The lower suspension paper stock 15 and the upper suspension paper stock 16 are materials used as the raw material of the lower paper layer 1 and the upper paper layer 3, and are mainly composed of pulp fibers, water, and additives.

  In each of the downstream portions of the lower layer material supply tank 12 and the upper layer material supply tank 14, a lower sheet material sealing plate 17 and an upper layer material sealing plate 18 are arranged. The lower suspension paper stock 15 and the upper suspension suspension material 15 are placed on the wire 8 through the gaps between the lower paper stock sealing plate 17 and the upper paper stock sealing plate 18 and the wire 8, respectively. Paper stock 16 is supplied to enable papermaking.

  The sheet supply portion of the intermediate layer by the intermediate sheet supply apparatus 13 is provided on the downstream side of the lower layer material supply tank 12 and on the upstream side of the upper layer material supply tank 14, and the intermediate layer sheet 2 is connected to the wire. 8 is supplied toward the lower suspension-like paper layer 19 formed on the substrate 8. The intermediate layer sheet supply device 13 includes a position correction device 22 for correcting the insertion position of the intermediate layer sheet 2 processed with the intermediate layer sheet supply drum 20, the tension roll 21, and the opening 4 in the paper making direction. The position correction roll 25 is provided.

  A belt-like intermediate layer sheet 2 is wound around the intermediate layer sheet supply drum 20, and the intermediate layer sheet 2 is supplied while being fed toward the wire 8. As described above, the belt-shaped intermediate layer sheet is preliminarily provided with openings 4 at regular intervals in the longitudinal direction. However, when the opening 4 is not provided in the intermediate layer sheet, the intermediate layer sheet 2 is processed while being fed out from the intermediate layer sheet supply drum 20 toward the wire 8 and processed into the intermediate layer sheet. The openings 4 are machined by the device 34 at regular intervals in the longitudinal direction.

  The width of the belt-like intermediate layer sheet 2 supplied from the intermediate layer sheet supply device 13 is the lower layer suspension formed by being supplied from the lower material sealing plate 17 to the upper surface (conveying surface) of the wire 8. It is substantially the same as the horizontal width of the liquid paper layer 19, and is further supplied to the upper surface of the lower suspension-like paper layer 19 from the upper-layer paper-sealing plate 18, and is formed as an upper suspension-like paper layer 23. It is almost the same as the width of.

  The intermediate sheet position correcting device 22 includes a position controller 24 for controlling the position correcting roll 25. The position correction roll 25 has a predetermined interval between the position q of the opening 5 and the position r of the opening 5 in which the distance between the position r of the opening 5 and the position q of the opening is set in the longitudinal direction in advance. When it deviates from the space | interval s, the feed rate of the sheet | seat 2 of an intermediate | middle layer is adjusted, and the shift | offset | difference of the position of the opening part of a longitudinal direction is corrected. In the first modification, when the interval between the opening position q and the register mark or IJP mark position v deviates from a predetermined interval s between the opening position q and the mark position v set in advance in the longitudinal direction. Then, the shift of the position of the opening in the longitudinal direction is corrected by adjusting the feeding speed of the sheet 2 of the intermediate layer.

  The position correcting roll 25 is driven by a motor capable of speed control by a control signal from the position controller 24, and is constituted by a roll capable of feed control capable of positively increasing or decreasing the feed speed of the sheet 2 of the intermediate layer.

  The intermediate layer sheet supply drum 20 is not shown so that it can be moved in the longitudinal direction of its axis, that is, in the width direction of the intermediate layer sheet 2, so that the position of the intermediate layer sheet supply drum 20 can be adjusted in the width direction. It is configured to be adjusted by the sheet supply drum width direction position adjusting device of the intermediate layer. Thereby, the sheet feeding drum width direction position adjusting device for the intermediate layer is configured such that the interval between the opening position q and the position r of the clearance 5 is set in advance in the width direction. In the case where it deviates from the predetermined interval t of r, the sheet 2 of the intermediate layer is moved in the width direction with respect to the multi-layered paper B, and the deviation of the position of the opening in the width direction is corrected. In the first modification, when the interval between the opening position q and the register mark or IJP mark position v deviates from the predetermined interval t between the opening position q and the mark position v preset in the width direction. Then, the sheet 2 of the intermediate layer is moved in the width direction with respect to the multi-layered paper B, and the positional deviation of the opening in the width direction is corrected.

  A squeezing box 26 is arranged below the downstream portion of the wire 8 (moving terminal portion on the upper surface of the wire). In the downstream portion of the wire 8 in the paper making process, the water squeezing box 26 removes water contained in the lower suspension paper layer 19, the intermediate sheet 2, and the upper suspension paper layer 23. The water is sucked and squeezed.

  The multilayer laminated paper B formed with the wire 8 is guided by a guide roll (not shown) and wound up as a final product by a winding roll. A press roll is provided between the wire 8 and the winding roll from the upstream side. 27, a drying device 28 (indicated by an imaginary line in FIG. 9) and a misalignment detection device 29 are provided. The press roll 27 is used for the multi-layered laminated paper.

  The press roll 27 sandwiches the multi-layered paper B and feeds it further to the downstream roll side. The gap is formed by a well-known press roll 27 or tundee roll 31. The drying device 28 uses a known drying device.

  The position deviation detection device 29 includes a position detector 30 and a position deviation discriminator 32. The position detector 30 is a detecting means that can detect a transmitted light image having a CCD camera or the like, and uses transmitted light from a light table 33 arranged on the opposite side of the multilayer laminated paper B to be detected. By detecting the position r of the scraping 5 and the position q of the opening, the distance between the two is measured, and this is sent as an electric signal to the misregistration discriminator 32. In the first modification, the register mark or IJP mark position v and the opening position q are detected.

  The misalignment discriminator 32 includes an interval between the position q of the opening sent from the position detector 30 and the position r of the clearance 5, and the position q of the opening in the longitudinal direction and the clearance 5 set in advance. The position controller determines the magnitude and direction of the deviation between the predetermined interval s of the position r and / or the position q of the opening in the width direction and the predetermined interval t of the position r of the squeeze 5 and detects the deviation. 24. In the first modified example, the distance between the position q of the opening and the position v of the mark 6 by the register mark or IJP, the predetermined distance s between the position q of the opening in the longitudinal direction and the position v of the mark 6 set in advance, and / or Alternatively, in this example, the magnitude and direction of the deviation between the position q of the opening in the width direction and the predetermined interval t between the position v of the mark 6 are determined, and the data of the positional deviation information is sent to the position controller 24.

(Production method)
The manufacturing method of the multi-layered laminated paper subjected to the penetration is sequentially described below.

  The lower suspension-like stock 15 in the lower stock supply tank 12 passes from the lower stock supply tank 12 through the gap between the lower stock supply plate 17 and the wire 8 to the upper surface of the wire 8 being circulated. Supply. The lower suspension paper layer 19 supplied on the wire 8 is sent in the paper making direction as the lower suspension paper layer 19.

  The belt-shaped intermediate layer sheet 2 in which the openings 4 are processed is continuously supplied from the intermediate layer sheet supply device 13 to the upper surface of the lower suspension-like paper layer 19. However, when the opening 4 is not previously processed in the intermediate layer sheet, the intermediate layer sheet 2 is fed from the intermediate sheet supply drum 20 while being fed out toward the wire 8. The openings 4 are provided by the processing device 34 at regular intervals in the longitudinal direction. Then, the belt-like intermediate layer sheet 2 overlaps with the lower suspension paper layer 19 while being fed in the paper making direction on the wire 8, and the lower suspension paper stock 15 is a fiber of the intermediate layer sheet 2. The pulp fibers of the lower suspension-like stock 15 and the fibers of the sheet 2 of the intermediate layer are entangled with each other.

  Next, the upper suspension paper stock 16 in the upper stock supply tank 14 passes through the gap between the upper stock supply sealing plate 18 and the wire 8 from the upper stock supply tank 14 and forms a lower suspension suspension. It is supplied to the upper surface of the sheet 2 of the belt-like intermediate layer that is overlapped with the pulp fibers of the stock 15. Then, the upper suspension paper stock 16 overlaps with the intermediate sheet 2 while being sent in the paper making direction as the upper suspension paper layer 23 on the wire 8, and the upper suspension stock 16. Enters between the fibers of the sheet 2 of the intermediate layer. In this manner, the lower layer suspension material 15, the intermediate layer sheet 2 in which the opening 4 is processed, and the upper layer suspension material 16 are sequentially supplied onto the wire 8 and stacked in multiple layers. And make paper. In addition, in the region where the opening 4 of the sheet 2 of the intermediate layer is provided, the fibers of the lower suspension-like stock 15 and the fibers of the upper suspension-like stock 16 are intertwined and entangled with each other. Lamination paper B is made.

  The multilayered laminated paper B passes through the squeezing box 26 and is subjected to the pouring 5 by the press roll 27. The squeeze 5 is applied at a predetermined interval s between the position q of the opening and the position r of the squeeze 5 in the longitudinal direction of the multilayer laminated paper B from the position q of the opening. To do. By adjusting in this way, the gap 5 is disposed in the opening 4. That is, the clearance 5 is formed by controlling the rotation speed of the press roll and the like in consideration of the wire feed speed and the position of the opening in the sheet of the intermediate layer. However, in actuality, when the sheet of the intermediate layer is inserted, the position q of the opening is set to the position q of the opening in the longitudinal direction set in advance with respect to the position r of the planned clearance 5 and the position of the clearance 5. Since the predetermined interval s of r and / or the position q of the opening in the width direction may deviate from the position of the predetermined interval t between the position r of the clearance 5, it is necessary to correct the shift position as described later.

  The multilayer laminated paper B formed in this way is further dried by passing through a drying apparatus to be completed as a final product. Then, in the middle of sending the multi-layered paper B as a product to the winding device, the positional deviation detecting device 29 causes the position r of the multi-layered paper interleaving 5 and the position q of the opening to be actually measured. With respect to the interval, a predetermined interval s between the position q of the opening in the longitudinal direction and the position r of the clearance 5 and / or a predetermined interval t between the position q of the opening in the width direction and the position r of the clearance 5 are set. The amount of misalignment is detected, and misalignment information is also generated and sent to the position controller 24 of the position correcting device 22.

  In the case where the alignment is not performed by squeezing, the actual gap between the register mark or IJP mark position v and the opening position q is detected by the misalignment detection device 29 in the middle of being sent to the winding device as a product. For a predetermined distance s between the opening position q in the longitudinal direction and the mark position v and / or the amount of deviation from the predetermined position t between the opening position q in the width direction and the mark position v. The detected position deviation information is generated and sent to the position controller 24 of the position correction device 22.

  The position controller 24 receives the positional deviation information and controls the position correction roll 25 to control the feeding of the intermediate sheet 2. That is, the position correction roll 25 can increase or decrease the feeding speed of the belt-shaped intermediate layer sheet 2 by adjusting the feeding speed via a motor according to a command from the position controller 24. Therefore, with respect to the position of the opening 4 provided in the intermediate sheet 2, the relative position in the papermaking direction with respect to the lower suspension-like paper layer 19 can be adjusted. When the position correcting roll 25 deviates from the predetermined interval s, the interval between the position q of the opening in the longitudinal direction and the position r of the clearance 5 or the interval between the position q of the opening and the mark position v by the register mark or IJP. Is adjusted to a predetermined interval s between the position q of the opening in the longitudinal direction and the position r of the clearance 5 or the position q of the opening and the position v of the mark in the longitudinal direction. Thus, the displacement of the position of the opening in the longitudinal direction is corrected.

  The intermediate layer sheet supply drum 20 is not shown so that it can be moved in the longitudinal direction of its axis, that is, in the width direction of the intermediate layer sheet 2, so that the position of the intermediate layer sheet supply drum 20 can be adjusted in the width direction. The intermediate layer can be adjusted by a sheet supply drum width direction position adjusting device. The sheet feeding drum width direction position adjusting device for the intermediate layer, when deviating from the predetermined interval t, is the interval between the position q of the opening in the width direction and the position r of the clearance 5 or the position q of the opening and the register mark or IJP. Of the intermediate layer so that the interval between the mark positions v by the predetermined position t between the opening position q in the width direction and the position r of the clearance 5 or the opening position q and the mark position v is set in advance. The sheet 2 is moved in the width direction to correct the position shift of the opening in the width direction. By adjusting in this way, the gap 5 is disposed in the opening 4.

  The multi-layered laminated paper can be made to have different color, basis weight, or fiber configuration by changing the stock characteristics of the raw material stored in the lower layer stock supply tank 12 or the upper layer stock supply tank 14. The color can be adjusted by operations such as different types of fibers, mixing of pigments and dyes, bleaching or unbleaching. The basis weight can be adjusted by adjusting the raw material concentration and the raw material discharge section. The fiber configuration can be adjusted by changing the fiber type, blending ratio, fiber length, beating degree, and the like.

  EXAMPLES Hereinafter, although this invention is demonstrated further in detail using an Example, the content of this invention is not limited to the range of these Examples.

Example 1
The multi-layered laminated paper subjected to the penetration of Example 1 was produced using the multi-layered laminated paper manufacturing apparatus shown in FIG. First, the beating degree of the softwood bleached kraft pulp was adjusted to 550 ml of Canadian Standard Freeness, and the lower layer suspension-like stock 15 was obtained. The lower-layer suspension-like stock 15 passes through the gap between the lower-layer stock-supplying plate 17 and the wire 8 from the lower-layer stock-supply tank 12, and the lower-layer suspension-like stock 15 is circulated through the wire 8 being circulated. The lower suspension paper stock 15 supplied to the upper surface and supplied onto the wire 8 was sent as a lower suspension paper stock 19 in the paper making direction.

Next, a basis weight of 20 g / m ² , a thickness of 87 μm, and made of a wound nonwoven fabric in which an opening is formed in advance, which is made of rayon fiber having high air permeability that is below the measurement limit according to the air permeability test method of JIS. The intermediate layer sheet 2 is set on an intermediate layer sheet supply drum 20 made of nonwoven fabric, and an opening is previously formed on the upper surface of the lower suspension-like paper layer 19 from the intermediate layer sheet supply device 13 made of nonwoven fabric. An intermediate layer sheet 2 made of a processed belt-shaped nonwoven fabric was continuously supplied. The size of the opening was 50 mm long and 50 mm wide. The opening to be processed in advance was processed with a laser irradiation apparatus at a wavelength of 10.6 μm. Further, the intermediate layer sheet 2 made of non-woven fabric is mixed with fluorescent fibers to form a magnetically printed portion. The opening provided in the sheet 2 of the intermediate layer made of nonwoven fabric is formed in a region other than the region of the printed portion printed by magnetism.

  On the upper surface of the sheet 2 of the intermediate layer made of a strip-shaped non-woven fabric layered with the pulp fiber of the lower-layer suspension-like stock 15, the upper-layer suspension in which softwood unbleached kraft pulp is adjusted to 570 ml of Canadian standard freeness. The upper stock material 16 was fed from the upper stock supply tank 14 through the gap between the upper stock plug 18 and the wire 8.

  The multilayer laminated paper passed through the squeezing box 26 and was subjected to the pouring 5 by the press roll 27. The relationship between the position of the opening and the position of the squeeze 5 is such that a predetermined interval between the position of the opening and the position of the squeeze 5 in advance in the longitudinal direction and the width direction so that the squeezing is performed in the opening. It was made to become the predetermined space | interval of the position of the opening part set in advance, and the position of the crease 5. Furthermore, it passed through the inside of the drying apparatus and was dried to complete a multi-layered laminated paper. The wound multi-layered paper was cut at a predetermined position to obtain a multi-layered paper having a sheet cut. The interleaving area of the multi-layered laminated paper that has been subjected to the interleaving is that the sheet of the intermediate layer made of non-woven fabric is not applied by the opening, and the basis weight of the upper and lower stocks is constant. The paper layer was thinner than the area. Moreover, it was the state formed only with the fiber in the opening part. When the multi-layered laminated paper with the penetration was observed with transmitted light, the penetration was clearly confirmed.

  In addition, in the region of the opening, since the paper material of the upper paper layer and the paper material of the lower paper layer are bonded to each other with the fibers entangled with each other, it is difficult to peel off due to the intermediate layer sheet made of nonwoven fabric. Furthermore, as a result of trying to peel, the upper layer or the lower layer of the multilayer laminated paper was destroyed from the region of the opening.

  Next, when the multi-layered laminated paper having the openings shown in Table 1 is used to peel off each multi-layered laminated paper, the upper layer or the lower layer of the multi-layered laminated paper is destroyed. The size of the opening was tested. The shape of the opening was circular and square, and the test was performed.

  As shown in Table 1, when the upper layer or lower layer of the multi-layered paper is destroyed, it is evaluated as ◯. When the upper layer or lower layer of the multi-layered paper is destroyed by the sample, and when it is not destroyed It evaluated as (triangle | delta) and evaluated as x when the upper layer or lower layer of the multilayer laminated paper peeled without destroying. As shown in Table 1, the upper layer or the lower layer of the multi-layered laminated paper was broken without forming a clear delamination by forming the opening with a diameter of 15 mm or more.

It is the multilayer laminated paper A1 in which the insertion was given, and its sectional drawing. It is the multilayer laminated paper A2 to which the insertion was given, and its sectional drawing. It is a figure which shows the case where the multilayer laminated paper A2 to which the penetration was given is forcibly peeled by hand. It is a figure which shows the case where the opening part 4b of multilayer laminated paper A2 is provided in the peripheral part of multilayer laminated paper. It is a figure which shows the case where the multilayer laminated paper A2 to which the penetration was given is observed with transmitted light. It is a figure which shows the example of the shape of the opening part. It is a figure which shows the X-X 'cross section when the strip | belt-shaped multilayer laminated paper B is observed in a longitudinal direction. It is a figure which shows the example in which the register | resistor mark which consists of white crease, or the mark 6 by IJP is provided to the multiple places at fixed intervals in the papermaking direction. It is a figure which shows the manufacturing apparatus of the multilayer laminated paper of the best form for implementing this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lower layer paper layer 2 Middle layer sheet 3 Upper layer paper layer 4, 4a, 4b Opening part 5 Clearing area 6 Clearing area 6 Register mark or mark by IJP 7 Multi-layer stitching device 8 Wire for paper making 9 Pulley for driven DESCRIPTION OF SYMBOLS 10 Pulley for drive 11 Upstream part of wire 12 Lower layer stock supply tank 13 Sheet supply device of intermediate layer 14 Upper layer stock supply tank 15 Lower layer suspension stock 16 Upper layer suspension stock 17 Lower layer stock Seal plate 18 Upper layer stock plate 19 Lower suspension paper layer 20 Intermediate layer sheet supply drum 21 Tension roll 22 Position correction device 23 Upper suspension paper layer 24 Position controller 25 Position Correction roll 26 Squeezing box 27 Press roll 28 Drying device 29 Misalignment detection device 30 Position detector 31 Tandy roll 32 Misalignment discriminator 33 Table 34 Processing equipment A1, A2 Multi-layered laminated paper B with multi-plying p Multi-ply laminated paper p Multi-plying peripheral part q Position of opening r Position of piling s Predetermined interval t width in the longitudinal direction Predetermined spacing in the direction v Mark position

Claims (3)

A multi-layered paper made of an upper layer, an intermediate layer made of non-woven fabric, and a lower layer, wherein the multi-layered paper is made of a slit applied to the upper layer and / or the lower layer and an opening made to the intermediate layer And the opening is disposed in a state of surrounding the area of the clearance applied to the upper layer and / or the lower layer. A multi-layered paper made of an upper layer, an intermediate layer made of non-woven fabric, and a lower layer, wherein the multi-layered paper is made of a slit applied to the upper layer and / or the lower layer and an opening made to the intermediate layer The opening is arranged in a state surrounding the region of the clearance applied to the upper layer and / or the lower layer, and in a region other than the region of the clearance applied to the upper layer and / or the lower layer. A multi-layered laminated paper with a squeeze, characterized in that at least one is arranged correspondingly.   3. The multi-layered paper with a gap according to claim 1 or 2, wherein the intermediate layer is mixed or printed with one or more of optical, electrical or magnetic specific substances. Laminated paper.

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