JP2012170656A - Method for producing tissue product, and the tissue product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently produce a toilet roll product imparted with a chemical liquid.SOLUTION: In this method for producing a tissue product, a primary web roll produced in paper making equipment is changed into a secondary web roll imparted with the chemical liquid and embossment in a ply machine, the secondary web roll is used and is folded in a multi-stand type inter-folder to obtain a tissue bundle, and the tissue bundle is stored in a storage box to finish as the tissue product.

Description

  The present invention relates to a method of manufacturing a tissue paper product by a multi-stand type interfolder and the tissue paper product.

  A box of tissue paper is generally obtained by stacking multiple tissue papers by folding them with an interfolder (folding equipment) and cutting them into a predetermined length to obtain a tissue paper bundle. It is manufactured by storing in a storage box (tissue carton).

  As examples of such interfolders, multi-stand type interfolders as disclosed in Patent Documents 1 and 2 below, and rotary interfolders as disclosed in Patent Documents 3 and 4 below are known. .

  The following is a conventional example of a manufacturing method using a multi-stand type interfolder. That is, a primary web roll (generally also called a jumbo roll) is manufactured by making a thin paper in a papermaking facility and winding it. Then, this primary web roll is set on a ply machine, and a plurality of primary webs are produced. The primary continuous sheet fed from the roll is overlapped and wound and slit (divided into the product width of the tissue paper product or a multiple of the width of the tissue paper product in the width direction) to produce a secondary raw roll made of a plurality of plies.

  After the secondary roll manufactured by the ply machine is taken out from the ply machine, the necessary number of rolls are set in the multi-stand type interfolder. Next, the secondary continuous sheet is fed out from the secondary web roll and fed to the folding mechanism, where it is stacked while being folded, and then cut into a predetermined length to form a tissue paper bundle and stored in the storage box.

  A manufacturing method using such a multi-stand type interfolder has a higher number of folding mechanisms (usually 80 to 120) than a manufacturing method using other folding equipment, and is therefore highly productive. Has advantages.

  Incidentally, in recent years, the demand for tissue paper products to which chemicals such as a moisturizing agent and a softening agent are applied has been increasing. For example, various manufacturing methods and equipment disclosed in the following Patent Documents 5 to 7 have been proposed. ing. Such tissue paper products are generally manufactured mainly by a rotary interfolder (for example, Patent Document 5 below). However, the rotary type interfolder has a drawback in that productivity is low because folding and cutting are simultaneously performed in the direction perpendicular to the processing direction.

  On the other hand, tissue paper products require “smoothness” as well as “softness (bulkyness, softness)” and “feeling of security (thickness, hand feeling) when biting the nose”. However, it is difficult to improve “softness (bulkyness, softness)” and “feeling of security when biting the nose (thickness, hand feeling)” with conventional manufacturing methods.

  For example, with a method that simply raises the rice paper weight of tissue paper and suppresses beating of raw materials, even if the thickness can be increased and the surface can be smoothed, "softness" cannot be expressed. When used, it becomes a hard touch.

  Therefore, some attempts have been made to increase thickness and softness. One example is to give emboss. Embossed products have a high-class feeling in terms of bulkiness, design, and surface smoothness, especially for consumers who want tissue paper products with a chemical solution. Often asked. However, since the embossing requires a separate embossing facility, the productivity is low, and the tissue paper product to which the above-described chemical solution is applied and the embossing is applied is extremely low in productivity.

  Conventionally, a steel match embossing type embossing device is provided in a rotary type interfolder, and folding is performed at a speed of 100 m / min. However, this manufacturing method is also low in productivity and high in cost.

US Patent No. 4052048 (Japanese Patent Publication No. 55-1215) JP 2006-240750 A JP 61-37668 A Japanese Patent Laid-Open No. 5-124770 Japanese Patent Application Laid-Open No. 2004-332034 Special table 2008-525103 gazette JP 2008-264564 A

  Therefore, the present inventors first considered that a tissue paper product to which a chemical solution was applied was manufactured by a manufacturing method using a multi-stand type interfolder that is more productive than a rotary interfolder. In addition, when manufacturing with a manufacturing method using a multi-stand type interfolder, if a chemical solution applying process and an embossing process are provided separately from the ply machine and the multi-stand type interfolder, the labor of transporting the raw material and a large equipment cost are required. There was a problem that it took.

  In addition, when a chemical solution application step and an emboss application step are provided in a multi-stand type interfolder, a line for manufacturing a tissue paper product for applying a chemical solution and embossing, and a line for manufacturing a tissue paper product for not applying a chemical solution and embossing It was necessary to separate it from.

  Therefore, the main problem of the present invention is a manufacturing method and equipment for tissue paper products using a multi-stand type interfolder, which can perform chemical application and emboss application at high speed at low cost, and chemical application It is in providing the manufacturing method and manufacturing equipment of the tissue paper product which can change the presence or absence of embossing, and embossing easily.

Means for solving the above problems and their effects are as follows.
[Invention of Claim 1]
A method for producing tissue paper products to which a chemical solution is applied,
As a ply machine for producing secondary rolls for tissue paper products continuously from primary rolls made and wound by papermaking equipment;
Laminating means for laminating a continuous sheet fed from a plurality of primary raw rolls along the continuous direction to form a laminated continuous sheet;
A chemical solution applying means for applying a chemical solution to the continuous sheet;
An embossing means for embossing the continuous sheet;
Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper products or a multiple of the width,
A winding means for winding the slit laminated continuous sheets on the same axis to form a secondary paper roll of the product width of the tissue paper product or a multiple of the width;
A large number of secondary raw rolls to which a chemical solution is applied, obtained by the ply machine, are set corresponding to the folding mechanism part of the multi-stand type interfolder. Each of the secondary continuous sheets from the anti-roll is fed into the folding mechanism part, the secondary continuous sheet is folded to obtain a laminated band stacked while crossing the side edges of each secondary continuous sheet,
Thereafter, the tissue paper bundle is cut by cutting at a predetermined interval in the flow direction, and the tissue paper bundle is stored in a storage box to obtain a tissue paper product.
The manufacturing method of the tissue paper product to which the chemical | medical solution was provided characterized by the above-mentioned.

[Invention of Claim 2]
A method for producing tissue paper products to which a chemical solution is applied,
As a ply machine for producing secondary rolls for tissue paper products continuously from primary rolls made and wound by papermaking equipment;
A stacking unit that stacks a primary continuous sheet fed from a plurality of primary rolls along the continuous direction to form a stacked continuous sheet;
A chemical solution applying means for applying a chemical solution to the laminated continuous sheet;
A ply peeling part where the laminated continuous sheet is separated into each continuous sheet;
An embossing means for embossing the continuous sheet separated at the ply peeling part;
A re-overlapping unit that laminates the continuous sheets separated by the ply peeling unit along the continuous direction to form a laminated continuous sheet;
Contact embossing means for applying contact embossing to the laminated continuous sheet laminated in the re-overlap part,
Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper products or a multiple of the width,
Winding means for winding each slit continuous laminated sheet on the same axis to form a secondary raw roll having a product width of tissue paper products or a multiple of the width of the tissue paper product, and in this order in the sheet flow direction Use;
A large number of secondary raw rolls to which a chemical solution is applied, obtained by the ply machine, are set corresponding to the folding mechanism part of the multi-stand type interfolder. Each of the secondary continuous sheets from the anti-roll is fed into the folding mechanism part, the secondary continuous sheet is folded to obtain a laminated band stacked while crossing the side edges of each secondary continuous sheet,
Thereafter, the tissue paper bundle is cut by cutting at a predetermined interval in the flow direction, and the tissue paper bundle is stored in a storage box to obtain a tissue paper product.
The manufacturing method of the tissue paper product to which the chemical | medical solution was provided characterized by the above-mentioned.

[Invention of Claim 3]
A method for producing tissue paper products to which a chemical solution is applied,
As a ply machine for producing secondary rolls for tissue paper products continuously from primary rolls made and wound by papermaking equipment;
A stacking unit that stacks a primary continuous sheet fed from a plurality of primary rolls along the continuous direction to form a stacked continuous sheet;
A ply peeling part where the laminated continuous sheet is separated into each continuous sheet;
A chemical solution applying means for applying a chemical solution to the continuous sheet separated at the ply peeling portion;
An embossing means for embossing the continuous sheet separated at the ply peeling part;
A re-overlapping unit that laminates the continuous sheets separated by the ply peeling unit along the continuous direction to form a laminated continuous sheet;
Contact embossing means for applying contact embossing to the laminated continuous sheet laminated in the re-overlap part,
Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper products or a multiple of the width,
Winding means for winding each slit continuous laminated sheet on the same axis to form a secondary raw roll having a product width of tissue paper products or a multiple of the width of the tissue paper product, and in this order in the sheet flow direction Use;
A large number of secondary raw rolls to which a chemical solution is applied, obtained by the ply machine, are set corresponding to the folding mechanism part of the multi-stand type interfolder. Each of the secondary continuous sheets from the anti-roll is fed into the folding mechanism part, the secondary continuous sheet is folded to obtain a laminated band stacked while crossing the side edges of each secondary continuous sheet,
Thereafter, the tissue paper bundle is cut by cutting at a predetermined interval in the flow direction, and the tissue paper bundle is stored in a storage box to obtain a tissue paper product.
The manufacturing method of the tissue paper product to which the chemical | medical solution was provided characterized by the above-mentioned.

[Invention of Claim 4]
A method for producing tissue paper products to which a chemical solution is applied,
As a ply machine for producing secondary rolls for tissue paper products continuously from primary rolls made and wound by papermaking equipment;
A stacking unit that stacks a primary continuous sheet fed from a plurality of primary rolls along the continuous direction to form a stacked continuous sheet;
A chemical solution applying means for applying a chemical solution to the laminated continuous sheet;
An embossing means for embossing the laminated continuous sheet;
Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper products or a multiple of the width,
Winding means for winding each slit continuous laminated sheet on the same axis to form a secondary raw roll having a product width of tissue paper products or a multiple of the width of the tissue paper product, and in this order in the sheet flow direction Use;
A large number of secondary raw rolls to which a chemical solution is applied, obtained by the ply machine, are set corresponding to the folding mechanism part of the multi-stand type interfolder. Each of the secondary continuous sheets from the anti-roll is fed into the folding mechanism part, the secondary continuous sheet is folded to obtain a laminated band stacked while crossing the side edges of each secondary continuous sheet,
Thereafter, the tissue paper bundle is cut by cutting at a predetermined interval in the flow direction, and the tissue paper bundle is stored in a storage box to obtain a tissue paper product.
The manufacturing method of the tissue paper product to which the chemical | medical solution was provided characterized by the above-mentioned.

[Invention of Claim 5]
A method for producing tissue paper products to which a chemical solution is applied,
As a ply machine for producing secondary rolls for tissue paper products continuously from primary rolls made and wound by papermaking equipment;
A stacking unit that stacks a primary continuous sheet fed from a plurality of primary rolls along the continuous direction to form a stacked continuous sheet;
An embossing means for embossing the laminated continuous sheet;
A chemical solution applying means for applying a chemical solution to the laminated continuous sheet;
Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper products or a multiple of the width,
Winding means for winding each slit continuous laminated sheet on the same axis to form a secondary raw roll having a product width of tissue paper products or a multiple of the width of the tissue paper product, and in this order in the sheet flow direction Use;
A large number of secondary raw rolls to which a chemical solution is applied, obtained by the ply machine, are set corresponding to the folding mechanism part of the multi-stand type interfolder. Each of the secondary continuous sheets from the anti-roll is fed into the folding mechanism part, the secondary continuous sheet is folded to obtain a laminated band stacked while crossing the side edges of each secondary continuous sheet,
Thereafter, the tissue paper bundle is cut by cutting at a predetermined interval in the flow direction, and the tissue paper bundle is stored in a storage box to obtain a tissue paper product.
The manufacturing method of the tissue paper product to which the chemical | medical solution was provided characterized by the above-mentioned.

[Invention of Claim 6]
A method for producing tissue paper products to which a chemical solution is applied,
As a ply machine for producing secondary rolls for tissue paper products continuously from primary rolls made and wound by papermaking equipment;
A stacking unit that stacks a primary continuous sheet fed from a plurality of primary rolls along the continuous direction to form a stacked continuous sheet;
A ply peeling part where the laminated continuous sheet is separated into each continuous sheet;
An embossing means for embossing the continuous sheet separated at the ply peeling part;
A re-overlapping unit that laminates the continuous sheets separated by the ply peeling unit along the continuous direction to form a laminated continuous sheet;
A chemical solution applying means for applying a chemical solution to the laminated continuous sheet laminated in the re-overlap part,
Contact embossing means for applying contact embossing to the laminated continuous sheet laminated in the re-overlap part,
Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper products or a multiple of the width,
Winding means for winding each slit continuous laminated sheet on the same axis to form a secondary raw roll having a product width of tissue paper products or a multiple of the width of the tissue paper product, and in this order in the sheet flow direction Use;
A large number of secondary raw rolls to which a chemical solution is applied, obtained by the ply machine, are set corresponding to the folding mechanism part of the multi-stand type interfolder. Each of the secondary continuous sheets from the anti-roll is fed into the folding mechanism part, the secondary continuous sheet is folded to obtain a laminated band stacked while crossing the side edges of each secondary continuous sheet,
Thereafter, the tissue paper bundle is cut by cutting at a predetermined interval in the flow direction, and the tissue paper bundle is stored in a storage box to obtain a tissue paper product.
The manufacturing method of the tissue paper product to which the chemical | medical solution was provided characterized by the above-mentioned.

[Invention of Claim 7]
A method for producing tissue paper products to which a chemical solution is applied,
As a ply machine for producing secondary rolls for tissue paper products continuously from primary rolls made and wound by papermaking equipment;
A stacking unit that stacks a primary continuous sheet fed from a plurality of primary rolls along the continuous direction to form a stacked continuous sheet;
A ply peeling part where the laminated continuous sheet is separated into each continuous sheet;
An embossing means for embossing the continuous sheet separated at the ply peeling part;
A chemical solution applying means for applying a chemical solution to the continuous sheet separated at the ply peeling portion;
A re-overlapping unit that laminates the continuous sheets separated by the ply peeling unit along the continuous direction to form a laminated continuous sheet;
Contact embossing means for applying contact embossing to the laminated continuous sheet laminated in the re-overlap part,
Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper products or a multiple of the width,
Winding means for winding each slit continuous laminated sheet on the same axis to form a secondary raw roll having a product width of tissue paper products or a multiple of the width of the tissue paper product, and in this order in the sheet flow direction Use;
A large number of secondary raw rolls to which a chemical solution is applied, obtained by the ply machine, are set corresponding to the folding mechanism part of the multi-stand type interfolder. Each of the secondary continuous sheets from the anti-roll is fed into the folding mechanism part, the secondary continuous sheet is folded to obtain a laminated band stacked while crossing the side edges of each secondary continuous sheet,
Thereafter, the tissue paper bundle is cut by cutting at a predetermined interval in the flow direction, and the tissue paper bundle is stored in a storage box to obtain a tissue paper product.
The manufacturing method of the tissue paper product to which the chemical | medical solution was provided characterized by the above-mentioned.

[Invention of Claim 8]
A method for producing tissue paper products to which a chemical solution is applied,
As a ply machine for producing secondary rolls for tissue paper products continuously from primary rolls made and wound by papermaking equipment;
A stacking unit that stacks a primary continuous sheet fed from a plurality of primary rolls along the continuous direction to form a stacked continuous sheet;
A ply peeling part where the laminated continuous sheet is separated into each continuous sheet;
Embossing and chemical solution applying means for applying embossing to the continuous sheet separated at the ply peeling part and applying the chemical solution,
A re-overlapping unit that laminates the continuous sheets separated by the ply peeling unit along the continuous direction to form a laminated continuous sheet;
Contact embossing means for applying contact embossing to the laminated continuous sheet laminated in the re-overlap part,
Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper products or a multiple of the width,
Winding means for winding each slit continuous laminated sheet on the same axis to form a secondary raw roll having a product width of tissue paper products or a multiple of the width of the tissue paper product, and in this order in the sheet flow direction Use;
A large number of secondary raw rolls to which a chemical solution is applied, obtained by the ply machine, are set corresponding to the folding mechanism part of the multi-stand type interfolder. Each of the secondary continuous sheets from the anti-roll is fed into the folding mechanism part, the secondary continuous sheet is folded to obtain a laminated band stacked while crossing the side edges of each secondary continuous sheet,
Thereafter, the tissue paper bundle is cut by cutting at a predetermined interval in the flow direction, and the tissue paper bundle is stored in a storage box to obtain a tissue paper product.
The manufacturing method of the tissue paper product to which the chemical | medical solution was provided characterized by the above-mentioned.

[Invention of Claim 9]
A method for producing tissue paper products to which a chemical solution is applied,
As a ply machine for producing secondary rolls for tissue paper products continuously from primary rolls made and wound by papermaking equipment;
A chemical solution applying means for applying a chemical solution to the primary continuous sheet fed from a plurality of primary raw rolls, and an embossing means for applying embossing;
The superposition part which laminates the continuous sheet along the continuous direction in the latter stage of the chemical solution application means and the emboss application means to form a continuous laminate sheet;
Contact embossing means for applying contact embossing to the laminated continuous sheet laminated at the overlapping portion;
Slitting means for slitting the laminated continuous sheet to which contact embossing has been applied so as to be a product width of tissue paper products or a multiple of the product width;
Winding means for winding each slit continuous laminated sheet on the same axis to form a secondary raw roll having a product width of tissue paper products or a multiple of the width of the tissue paper product, and in this order in the sheet flow direction Use;
A large number of secondary raw rolls to which a chemical solution is applied, obtained by the ply machine, are set corresponding to the folding mechanism part of the multi-stand type interfolder. Each of the secondary continuous sheets from the anti-roll is fed into the folding mechanism part, the secondary continuous sheet is folded to obtain a laminated band stacked while crossing the side edges of each secondary continuous sheet,
Thereafter, the tissue paper bundle is cut by cutting at a predetermined interval in the flow direction, and the tissue paper bundle is stored in a storage box to obtain a tissue paper product.
The manufacturing method of the tissue paper product to which the chemical | medical solution was provided characterized by the above-mentioned.

[Invention of Claim 10]
A tissue paper product manufactured by the method for manufacturing a tissue paper product to which the chemical solution according to any one of claims 1 to 9 is applied.

  The secondary roll for tissue paper products manufactured by the manufacturing method according to the present invention so as to have a product width of tissue paper products or a multiple of the width of tissue paper products by slitting means is set in a multi-stand type interfolder at a subsequent stage. Is done. Next, the secondary continuous sheet is fed out from the secondary raw roll set in the multi-stand type interfolder, sent to the folding mechanism, stacked while being folded, and then cut into a predetermined length and the tissue paper Make a bundle and store it in a storage box.

  In the present invention, a secondary raw roll obtained by winding a laminated continuous sheet to which a chemical solution and embossing are applied is manufactured in a production facility (ply machine) for a secondary raw roll for tissue paper products. For this reason, compared with the case where a chemical | medical solution provision means and an embossing provision apparatus are provided separately from a ply machine and a multi stand type interfolder, an installation cost can be restrained low. In addition, when manufacturing tissue paper products that do not apply chemicals or do not give embossing, it is only necessary to omit chemicals applying means and embossing means from the means for manufacturing secondary paper rolls for tissue paper products. Switching is easy.

  In addition, since a ply machine and a multi-stand type interfolder are used, extremely high productivity can be achieved.

  In addition, in the manufacturing method according to the present invention, since a ply machine incorporating an embossing means and a chemical solution applying means is used, a bulky and soft tissue paper is obtained in addition to moisture retention, flexibility and surface smoothness. .

  Furthermore, in the manufacturing method according to the present invention, when using a ply machine in which an embossing means is arranged after the chemical liquid application means, embossing can be applied to a continuous sheet having high humidity after the chemical liquid application. Since it can, it can be firmly embossed, so that tissue paper with embossed firmly can be obtained.

  Further, in the manufacturing method according to the present invention, when a ply machine is used in which a ply peeling part is provided in front of the embossing means, and a laminating means such as an overlapping part or a re-overlapping part is provided in the subsequent stage of the embossing means. In addition, a double-embossed tissue paper that is particularly excellent in surface smoothness, bulky and soft is obtained.

  Further, in the manufacturing method according to the present invention, when a ply machine that supplies a continuous sheet in a laminated state to the embossing means is used, there is an advantage that the continuous embossing of each continuous sheet is made and no separate contact embossing means is required. is there.

  On the other hand, in the manufacturing method according to the present invention, chemical application is performed before the slit. If the chemical solution applying means is behind the slit means, the chemical solution is applied to the laminated continuous sheet divided into a plurality of pieces by the slit means, so that the chemical solution leaks from the slit, causing roll dirt and paper breakage. When the chemical solution applying means is performed between the laminating means and the slit means, it is sufficient to prepare equipment for applying the chemical solution only to the laminated continuous sheet that is not divided by the slit means. There is little, and there is little paper break and operation is stable.

  On the other hand, in the manufacturing method according to the present invention, the contact embossing is performed before the slit of the laminated continuous sheet. If the contact embossing means is after the slitting means, contact embossing is applied to the laminated continuous sheet having the slit in the product width, and two (two lines) are provided at the end of the laminated sheet having the continuous product width. Since contact embossing is performed, it becomes easier to cut the paper than contact embossing at the full width.

It is the schematic which shows the manufacturing method of the primary web roll in papermaking equipment. It is the schematic which shows the example of the manufacturing method of the secondary original fabric roll in the ply machine concerning 1st Embodiment. It is the schematic which shows a contact emboss provision process. It is the schematic which shows an example of a multi stand type inter folder, and has shown the state seen from the front. It is the schematic which shows an example of a multi stand type inter folder, and has shown the state seen from the side. It is the schematic which shows an example of a multi stand type inter folder, and has shown the state seen from the front. It is a longitudinal cross-sectional view of the folded tissue paper. (A) It is a figure which shows a mode that the tissue paper bundle is accommodated in the storage box. (B) It is a partially broken figure which shows a mode that the tissue paper accommodated in the storage box is taken out. It is a principal part expansion perspective view of the site | part regarding a folding plate. It is a principal part expansion perspective view which shows how to fold a secondary continuous sheet (tissue paper). It is a principal part expansion perspective view which shows how to fold a secondary continuous sheet (tissue paper). It is a principal part expansion perspective view which shows how to fold a secondary continuous sheet (tissue paper). It is the schematic which shows the example of the manufacturing method of the secondary original fabric roll in the ply machine concerning 2nd Embodiment. It is the schematic which shows the other example of a manufacturing method of the secondary original fabric roll in the ply machine concerning 3rd Embodiment. It is the schematic which shows the example of a manufacturing method of the secondary original fabric roll in the ply machine concerning 4th Embodiment. It is the schematic which shows the other example of a manufacturing method of the secondary original fabric roll in the ply machine concerning 5th Embodiment. It is the schematic which shows the other example of the manufacturing method of the secondary film roll in the ply machine concerning 6th Embodiment. It is the schematic which shows the other example of the manufacturing method of the secondary raw fabric roll in the ply machine concerning 7th Embodiment. It is the schematic which shows the other example of the manufacturing method of the secondary raw fabric roll in another ply machine concerning 7th Embodiment. It is the schematic for demonstrating an example of a chemical | medical solution provision means. It is the schematic which shows an example of a doctor chamber type flexographic printing apparatus. It is the schematic for demonstrating the example of the derivation | leading-out part of a chemical | medical solution supply apparatus. It is the schematic for demonstrating the example of the other derivation | leading-out part of a chemical | medical solution supply apparatus. It is the schematic for demonstrating the example of another derivation | leading-out part of a chemical | medical solution supply apparatus. It is a figure explaining the structure of the doctor chamber used with a chemical | medical solution supply apparatus, Comprising: (A) shows the structure which has two introduction parts and one derivation | leading-out part, (B) is three introduction parts and two derivation | leading-out parts (C) shows a structure in which the same number of introduction portions and derivation portions exist. It is the schematic which shows an example of a 2 roll-type flexographic printing apparatus. It is the schematic which shows the example of chemical | medical solution provision by a chemical spray device. It is the other schematic which shows the example of chemical | medical solution provision by a chemical spray device. It is the schematic of the example of a chemical | medical solution spraying apparatus. It is the schematic of the other chemical | medical solution spraying apparatus example. It is the schematic of the example of a chemical | medical solution spraying apparatus of a rotor dampening system. It is the schematic which shows the example of chemical | medical solution provision by an inkjet type printer. It is the schematic which shows the ink head of an inkjet type printing apparatus. It is the schematic which shows a curtain coater. It is a figure which shows the measuring method of the MMD value of tissue paper. It is a schematic diagram which shows a chemical | medical solution penetration process.

  Next, an embodiment of the present invention will be described. In the figure, the arrow HD indicates the horizontal direction, and the arrow LD indicates the vertical direction.

“First Embodiment”
[Paper making process: Manufacturing method and manufacturing equipment for primary roll]
The primary raw roll JR (also referred to as jumbo roll) according to the present invention can be manufactured as follows using the papermaking equipment example X1 shown in FIG.

  First, an appropriate chemical is added from the head box to the pulp slurry, and a stock prepared in advance is supplied onto the wire of the wire part to form the wet paper W (forming step: not shown).

  Next, the wet paper web W is transferred to the bottom felt 31B of the press part 31 and then squeezed by passing between the top roll 32 and the bottom roll 33 while being sandwiched between the top felt 31T and the bottom felt 31B (dehydration). Process).

  After that, the wet paper web W that has been squeezed is attached to the surface of the Yankee dryer 35 via the touch roll 34 and dried after being put on the top felt 31T, and then scraped off by the doctor blade 36 to have a crepe. A base paper S1 (primary continuous sheet described later) is used (drying step).

  Then, the dry base paper S1 is wound by a winding means 38 having a winding drum 37 so that the back surface of the dry base paper S1 faces the shaft side of the primary raw roll JR (so that it becomes the winding inner surface). Take the primary roll roll JR (primary roll take-up step).

  The primary raw roll JR is different depending on the performance of the papermaking equipment X1, but generally has a diameter of 1000 to 5000 mm, a length (width) of 1500 to 9200 mm, and a winding length of 5000 to 80000 m.

  In addition, a calendar process (not shown) may be provided on the dry base paper S1 that has been scraped off by the doctor blade 36 before the primary raw material winding process to smooth the front and back surfaces.

  Here, the back surface of the dry base paper S <b> 1 means the surface opposite to the surface in contact with the cylinder of the Yankee dryer 35. Although depending on the presence or absence of the calendar process, the surface in contact with the mirror Yankee dryer is generally smoother and has better surface properties.

Here, the primary continuous sheet S1 constituting the primary raw roll JR is processed into tissue paper later, and has a basis weight substantially equal to that of the tissue paper constituting the final product. Therefore, considering this, the primary continuous sheet S1 specifically has a basis weight according to JIS P 8124 of 10 to 25 g / m ² , preferably 12 to 20 g / m ² , more preferably 13 to 16 g / m ² . To do. When the basis weight is less than 10 g / m ² , it is preferable in terms of the softness of the tissue paper, but it becomes difficult to secure an appropriate strength at the time of use, and processing in the subsequent multi-stand type interfolder is difficult. It becomes. On the other hand, if the basis weight exceeds 25 g / m ² , the tissue paper becomes too hard and the touch is deteriorated.

  The paper thickness (measured with a dial thickness gauge manufactured by Ozaki Seisakusho) is 80 to 250 μm, preferably 100 to 200 μm, more preferably 130 to 180 μm.

  The primary continuous sheet S1 has a crepe rate of 10 to 30%, preferably 12 to 25%, more preferably 13 to 20%. When the crepe rate is less than 10%, the paper is easy to break during subsequent processing, and the tissue paper does not stretch and has little elongation. On the other hand, if the crepe rate is more than 30%, it is difficult to control the tension of the sheet at the time of processing, and it becomes easy to break the paper.

Here, the crepe rate is expressed by the following equation.
Crepe rate: {(peripheral speed of the dryer during paper making) − (reel peripheral speed)} / (peripheral speed of the reel device in the winding means) × 100.

  Further, the primary continuous sheet S1 has a dry tensile strength (hereinafter also referred to as dry paper strength) specified in JIS P 8113 of 2 to 200 p-200 cN / 25 mm, preferably 250 to 600 cN / 25 mm. Preferably, it is 300 to 600 cN / 25 mm. On the other hand, it is desirable that the lateral direction is 100 to 300 cN / 25 mm, preferably 130 to 270 cN / 25 mm, particularly preferably 150 to 250 cN / 25 mm with 2 plies. If the dry tensile strength of the base paper is too low, troubles such as paper breakage and elongation at the time of production and use are likely to occur, and if it is too high, the touch becomes stiff when used.

  These paper strengths can be adjusted by a known method. For example, NBKP of raw material pulp that reduces the freeness (for example, about 30 to 40 ml) of paper stock by adding a dry paper strength enhancer to the stock or wet paper. Known techniques such as increasing the blending ratio (for example, 50% or more) can be appropriately combined.

  As the dry paper strength enhancer, starch, polyacrylamide, CMC (carboxymethyl cellulose) or a salt thereof such as sodium carboxymethyl cellulose, carboxymethyl cellulose calcium, carboxymethyl cellulose zinc and the like can be used. As the wet paper strength enhancer, polyamide polyamine epichlorohydrin resin, urea resin, acid colloid / melamine resin, thermally crosslinkable coating PAM, and the like can be used.

  When the dry paper strength enhancer is internally added, the addition amount can be set to about 0.5 to 1.0 kg / t by weight ratio to the pulp slurry.

  When the wet paper strength enhancer is internally added, the addition amount can be about 0.5 to 1.0 kg / t in terms of the weight ratio to the pulp slurry.

  Here, the paper material used as the raw material of the primary raw material roll (primary raw material sheet) will be described. The paper material is obtained by adding an appropriate chemical to a slurry (pulp slurry) containing pulp as a main raw material as a fiber raw material. .

  In the present invention, the raw material pulp is not particularly limited, and an appropriate raw material pulp used for toilet paper can be selected and used.

  Preferably, the raw material pulp is a blend of NBKP and LBKP. In addition, waste paper pulp may be blended, but it is compatible with the lotion chemical solution according to the present invention, log production in a winder can be suitably performed, and the texture of the resulting tissue paper is desirable, so virgin pulp It is preferable to be composed only of NBKP and LBKP. In this case, the blending ratio (JIS P 8120) is preferably NBKP: LBKP = 20: 80 to 80:20, and particularly preferably NBKP: LBKP = 30: 70 to 60:40.

  Examples of chemicals added to the paper stock include the above-mentioned dry paper strength enhancer, wet paper strength enhancer, release agent, adhesive, pH adjuster such as caustic soda, sticky agent, antifoaming agent, preservative, slime control agent In addition, these chemicals may be applied to the wet paper in an appropriate process.

[Process in ply machine: manufacturing method and manufacturing equipment for secondary roll]
In the present invention, the primary web roll JR produced by the papermaking facility X1 is characteristically produced by the ply machine X2 illustrated in FIG. 2 as the secondary web roll R to which a chemical solution and embossing are applied.

  In the first embodiment, the ply machine X2 includes an overlapping portion 51, a chemical solution applying means 53, a ply peeling portion 57, an embossing means 60, a re-superposing portion 58, a contact embossing means 54, a slit means 55, The winding means 56 is provided in this order, and in the ply machine X2, a secondary raw roll R is obtained by applying embossing in the form of double embossing after applying chemicals. Hereafter, each means and the process in each part are further explained in full detail.

(Lamination means: Lamination process)
The ply machine X2 according to the first embodiment can set two or more primary rolls JR, and primary continuous sheets (S11, S12 in the illustrated example) fed out from the primary rolls JR, JR are as follows. In addition, it is configured to be supplied to an overlapping portion (stacking means) 51 that is stacked along the continuous direction to form a stacked continuous sheet S2. Here, the overlapping portion 51 is constituted by a guide roll or a pair of nip rolls, and the primary continuous sheets S11 and S12 are stacked.

  In the illustrated example, the surfaces of the primary continuous sheets S11 and S12 fed out from the primary raw rolls JR and JR are respectively the surfaces of the laminated continuous sheets S2 (here, the “surface” of the laminated continuous sheets is the laminated outer surface). (The front and back surfaces of the laminated continuous sheet S2). You may comprise so that the back surface of primary continuous sheet S11, S12 may become the surface of lamination | stacking continuous sheet S2, respectively, either one back surface of primary continuous sheet S11, S12 may become the surface of lamination | stacking continuous sheet S2, and the other surface May be the surface of the laminated continuous sheet S2, but the surfaces of the primary raw sheets S11 and S12 are in contact with the surface of the Yankee dryer 57 during drying, and are less fuzzy and smoother than the back surface. Since the touch is good, it is desirable that the surface of the primary continuous sheet (dry base paper S1) forms the front and back surfaces of the laminated continuous sheet S2.

  In the illustrated example, two primary web rolls JR are set and a so-called two-ply laminated continuous sheet is wound, but three sets, four sets of three-ply and four-ply laminated continuous sheets are wound. It is also possible to make it.

(Chemical solution application process)
In the first embodiment, the chemical application unit 53 is provided after the overlapping portion 51 of the ply machine X2, and a chemical application process for continuously applying a chemical to the laminated continuous sheet S2 is performed. ing.

  In order to apply a chemical solution to the laminated continuous sheet S2 by the ply machine X2, a chemical solution application means 53 such as flexographic gravure printing, spray coating, ink jet printing, curtain coater, air knife coater, etc. can be employed. However, flexographic printing is suitable because it can cope with the high speed of the ply machine X2, and the printing plate has flexibility, high speed compatibility, prevention of chemical dispersion, and easy adjustment of the coating amount. Spray coating, which is a non-contact type coating method in which a chemical solution is directly applied to the paper surface without using the printing plate roll or the like, in that the plate thickness is not reduced because the printing plate roll is not brought into contact with the paper surface. Work, ink jet printing and curtain coating are desirable. However, these non-contact coating methods are inferior in terms of high speed in terms of uniform application of the chemical solution and adjustment of the coating amount as compared with roll transfer type application means such as flexographic printing. Therefore, in the present invention, the roll transfer method is more preferable, and flexographic printing is most preferable overall.

  One or a plurality of chemical solution applying means 53 can be installed. In the illustrated example, two doctor chamber-type flexographic printing machines 53A and 53B are installed and a chemical solution is applied to both outer surfaces of the laminated continuous sheet S2. When a plurality of chemical solution applying means 53 are installed, they may be arranged side by side in the horizontal direction, the up-down direction, or the oblique direction, or these installation directions including the horizontal direction may be combined. Since the holding angle can be reduced by arranging them in the horizontal direction, the processing speed can be increased, and when they are arranged in the vertical direction, the installation space in the horizontal direction can be reduced.

The coating amount of the chemical solution is 0.3 to 5.0 g / m ² , preferably 1.0 to 3.9 g / m, and the total chemical coating amount of both outer surfaces (each surface serving as the outer surface of the tissue paper). ² , more preferably 2.0 to 2.4 g / m ² . If it exceeds 3.9 g / m ² , the paper may be cut off due to a decrease in paper strength or elongation, and the quality may be too sticky, and it may be difficult to process with the multi-stand type interfolder described later. Become. If it is less than 0.3 g / m ² , the difference in quality from uncoated products such as smoothness and moistness cannot be felt. More preferably, when it is 2.0 to 2.4 g / m ² , the sensory evaluation such as a feeling of thickness and a feeling of moistness is extremely excellent.

  In addition, when there is a difference in the amount of application to both application surfaces, since both application surfaces are in contact with each other during the time from the storage in the state of the secondary roll after application until the folding process, both The amount of the solution will be equalized and the difference between the two sides will be reduced.

  When the chemical solution is applied to only one side of the laminated continuous sheet S2, the chemical application surface is the surface located on the inner side of the secondary raw roll R in the laminated continuous sheet S2 (also referred to as the winding inner surface, the primary of the figure). (Surface of the continuous sheet S11 side) is good.This causes a difference between the front and the back when applying a chemical in the product, but hardly causes a winding slip.

  About the chemical | medical solution provided by the chemical | medical solution provision means 53 (chemical | medical solution provision process), 1-700 mPa * s is desirable for a viscosity at 40 degreeC. More preferably, it is 50-400 mPa * s (40 degreeC). If it is less than 1 mPa · s, the chemical solution is likely to scatter, and conversely if it is greater than 700 mPa · s, it becomes difficult to control the amount to be applied stably.

  The chemical solution used in the present invention is an aqueous lotion chemical solution, and its components include water and a polyol. In particular, it is desirable to contain 70 to 90% of polyol and 1 to 15% of water, and more desirably 0.01 to 22% of functional chemicals.

  Examples of the polyol include polyhydric alcohols such as glycerin, diglycerin, propylene glycol, 1,3-butylene glycol, polyethylene glycol, and derivatives thereof, and sugars such as sorbitol, glucose, xylitol, maltose, maltitol, mannitol, and trehalose. Can be mentioned.

  Among the above components, it is preferable to use a polyhydric alcohol such as glycerin or propylene glycol as a main component in order to stabilize the functional cost such as smoothness and moisturizing property, and the viscosity and applied amount of the chemical solution.

  Examples of the functional agent include softeners, surfactants, inorganic and organic fine particle powders, and oily components. Softeners and surfactants have the effect of imparting flexibility to the tissue and smoothing the surface, and anionic surfactants, cationic surfactants and zwitterionic surfactants are applied. Inorganic and organic fine particle powders have a smooth surface. The oil component has a function of improving lubricity, and higher alcohols such as liquid paraffin, cetanol, stearyl alcohol, and oleyl alcohol can be used.

  In addition, as a functional agent, one of a hydrophilic polymer gelling agent, collagen, hydrolyzed collagen, hydrolyzed keratin, hydrolyzed silk, hyaluronic acid or a salt thereof, ceramide, etc. A moisturizing agent such as any combination can be added.

  As functional agents, emollients such as various natural extracts, vitamins, emulsifiers that stabilize compounding ingredients, antifoaming agents, antifungal agents, organic acids and other deodorizing agents that suppress the foaming of chemicals and stabilize their application. It can mix | blend suitably. Furthermore, you may contain the antioxidant of vitamin C and vitamin E.

  The temperature at the time of chemical solution application is preferably 30 ° C to 60 ° C, preferably 35 ° C to 55 ° C.

  Here, there are various types of chemicals used for chemical coating type products, but water-based chemicals containing water and polyols according to the present invention, oil systems mainly containing water-insoluble wax, etc. and semi-solid at room temperature Broadly divided into chemicals. Aqueous chemicals are characterized by excellent handling and low cost and almost no degradation in water disintegration.

  In addition, aqueous chemicals have excellent affinity with the pulp fibers that make up the sheet when applied to the sheet, impregnate in the thickness direction of the sheet (also called the Z direction), and modify the entire sheet and its surface properties. Acts like On the other hand, the oil-based chemical solution mainly acts to coat the surface thereof, acts to improve the smoothness of the surface, and deteriorates water decomposability. On the other hand, since the aqueous chemical solution impregnates the sheet, the action of stretching the crepe applied to the sheet after coating is large and accompanied by a decrease in paper strength. However, the action of the oil-based chemical liquid is small.

  The present invention can produce a sufficient amount of such a water-based chemical solution stably and at high speed, and is moisturizing (moist), soft (soft), and smooth on the surface (smooth). ) And productivity.

(Ply peeling process)
The ply machine X <b> 2 according to the first embodiment is provided with a ply peeling portion 57 for separating the laminated continuous sheet S <b> 2 into the continuous sheets S <b> 11 and S <b> 12 after the chemical solution applying unit 53. The ply peeling unit 57 appropriately guides the continuous sheets S11 and S12 constituting the laminated continuous sheet S2 so as to be a paper run that is led to another device at the subsequent stage (in the present invention, the embossing devices 60A and 60B). It can be configured by providing a roller. In particular, it is not necessary to separately provide a peeling device for ply peeling.

  In the first embodiment, the continuous sheets S11 and S12 that are primarily ply peeled by the ply peeling portion 57 can be guided to different embossing devices 60A and 60B, respectively. Embossing can be separately applied to the sheets S11 and S12.

  Further, in the first embodiment, since the overlapping portion 51 and the chemical solution applying means 53 are provided in this order in the sheet flow direction in the preceding stage of the ply peeling portion 57, the stacked state in the chemical solution applying means 53 is provided. It is possible to easily apply a chemical solution to the front and back surfaces of the laminated continuous sheet S2 and to separately emboss each continuous sheet S11, S12 constituting the laminated continuous sheet S2 after applying the chemical solution. It becomes.

  In the example shown in the figure, since the two-ply laminated continuous sheet S2 in which the two primary continuous sheets S11 and S12 are overlapped at the overlapping portion is peeled off, each continuous sheet after the ply peeling portion is a single layer. Continuous sheet S11, S12, but when 3 sets or 4 sets of primary material rolls are set on the material roll support part and the laminated part is a 3 ply or 4 ply laminated continuous sheet, ply peeling The sheet can be separated into a continuous sheet having an appropriate number of layers, for example, divided into a continuous sheet of 1 ply (single layer) and a continuous sheet of 2 plies (two stacked or two stacked). Of course, in the case of 3 plies and 4 plies in the ply peeling portion, they may be ply peeled on each single-layer continuous sheet.

(Embossing process)
In the ply machine X2 according to the first embodiment, an embossing means 60 is provided at the subsequent stage of the ply peeling portion 57, and the chemical liquid is applied in a laminated state by the chemical liquid applying means 53 in the embossing means 60. Then, embossing is applied to each of the continuous sheets S11, S12 after applying the chemical solution formed by ply peeling at the ply peeling portion 57. In addition, the embossing here means embossing given to the entire paper surface for improving bulkiness, designability, and surface properties, unlike contact embossing for preventing delamination, and microembossing, macro It is called embossing or design embossing.

  In the first embodiment, the embossing means 60 is provided with two embossing devices 60A and 60B for embossing each of the continuous sheets S11 and S12 after the ply peeling portion 57. .

  Each embossing device 60 </ b> A, 60 </ b> B has an embossing roll 61 having an embossing projection on the peripheral surface and a nip roll 62 paired therewith, and a continuous sheet is passed between the embossing roll 61 and the nip roll 62. Thus, the embossed pattern on the peripheral surface of the embossing roll is transferred to the continuous sheet and embossed.

  On the other hand, a suitable embossing device 60 according to the present invention is one in which an embossing roll 61, also called a steel rubber system, is made of metal, and the nip roll 62 is an elastic nip roll 62 having at least a surface made of an elastic member such as rubber. is there. Such steel rubber embossing means is suitable for high-speed processing of the ply machine X2.

  On the other hand, in the first embodiment, the re-overlap portion 58 at the rear stage of the embossing means 60 is provided, and the continuous sheets S11 and S12 are laminated and integrated again by the re-overlap portion 58. . Therefore, when embossing is applied, the embossing roll is pressed against a surface that becomes a laminated outer surface (the outer surface of the laminated continuous sheet) when the layers are re-laminated at the re-overlap portion 58, so that an embossed recess is formed on the surface. It is desirable to make it. If it does in this way, a space | gap will be formed between the other continuous sheet | seat which the embossing convex part corresponding to the said embossing recessed part becomes a lamination | stacking inner surface, and will be laminated | stacked, and a bulky lamination | stacking continuous sheet will be formed.

  Furthermore, it is desirable that the surface with which the embossing roll 61 of each of the continuous sheets S11 and S12 contacts is the surface to which the chemical solution is applied by the preceding chemical solution applying means 53. As a result, the surface that will be the outer surface later, that is, the surface having the embossed depression pressed by the embossing roll becomes the outer surface (surface) of the laminated continuous sheet, and the laminated continuous sheet is excellent in surface smoothness.

  Here, the elastic nip roll 62 preferably has a Shore hardness of 40 to 60 degrees on the surface thereof. If the Shore hardness is too low, that is, if the surface of the elastic roll is too soft, the sheet or the sheet base may be broken, which may hinder high-speed operation of the ply machine. On the other hand, if the Shore hardness is too high, that is, if the surface of the elastic roll is too hard, there is a possibility that embossing does not enter.

  The nip pressure (also called emboss pressure or linear pressure) for embossing the continuous sheet is 5-30 kgf / cm, preferably 10-25 kgf / cm. If the nip pressure is too low, the effect that the emboss becomes clear may not be sufficiently exhibited. On the other hand, if the embossing pressure is too high, the continuous sheet may be torn off.

In the present invention, the emboss pattern, the emboss depth, the emboss density, the shape of each unit emboss constituting the emboss, and the embossed area are not particularly limited, but the emboss density is 30 to 100 / cm ² on the entire paper surface. Form of so-called micro embossing applied at a depth of 0.2-2.0 mm, embossing density 0.1-10 pieces / cm ² , embossing depth 0.3-2.5 mm The design embossing can be illustrated. Particularly preferred is the micro-embossing. Since the embossing depth is shallow and it is widely applied to the entire paper surface, it can be applied at high speed, and the high-speed mobility of the ply machine can be exhibited sufficiently.

  In the example shown in FIG. 2 of the above description, two embossing devices are provided and embossing is applied to each continuous sheet. However, in this embodiment, only one continuous sheet is provided with one embossing device. Embossing may be given. Also, different embossing patterns in each embossing device, for example, one embossing device that gives microembossing, another embossing device that gives microembossing (design embossing) It can be.

  In the case of 3 plies and 4 plies, embossing may be applied to each continuous sheet formed by the ply peeling portion, or embossing may be applied to some of the continuous sheets.

(Lamination means: re-lamination process)
The ply machine X2 according to the first embodiment has a re-overlapping unit 58 that re-stacks the continuous sheets S11 and S12 separated by the ply peeling unit 57 after the embossing unit 60, and each embossing unit. The continuous sheets S11 and S12 to which embossing is applied by the apparatus are supplied to the re-overlapping unit.

  Then, the continuous sheets each provided with embossing (illustrated example) in the re-overlap portion 58, or the continuous sheet provided with embossing and the continuous sheet not provided with embossing are laminated again, so-called double. A laminated continuous sheet having an embossed form is formed. That is, taking into consideration the chemical application by the chemical application unit 53, the laminated continuous sheet S2 to which the chemical is applied and the double embossing is applied is formed.

  Here, the specific configuration of the re-overlap portion 58 is the same as that of the overlap portion 51 in the above-described stacking step. That is, the re-overlapping unit 58 is configured by a guide roll or a pair of nip rolls, and stacks the continuous sheets S11 and S12.

  In the illustrated example, as described in the emboss application step, the chemical application surface of each of the continuous sheets S11 and S12 and the emboss concave surface (the surface in contact with the emboss roll) are respectively the surfaces of the stacked continuous sheets S2 (here, the layers are laminated). The “front surface” of the continuous sheet refers to the front and back surfaces of the laminated continuous sheet S2 that is the outer surface of the laminated sheet) and is supplied to the re-overlapping unit 58.

  Thereby, it becomes a lamination | stacking continuous sheet S2 which has a moderate space | gap between each continuous sheet, is bulky, and the surface is smooth.

  Note that both the overlapping portion and the re-overlapping portion in the ply machine X2 are the stacking means. In the first embodiment, the substantial stacking means is the re-overlap portion 58.

(Contact embossing process)
The ply machine X2 according to the first embodiment has the contact embossing means 54 at the rear stage of the re-overlap portion, and the laminated continuous sheet to which the chemical solution is applied and the emboss is applied is supplied to the contact embossing means 54. The

  As shown in FIG. 3, the contact embossing means 54 includes a receiving roll 54B, which is a metal roll or an elastic roll, and a metal, hard roller 54A having a fine convex portion 54C on the surface, with a predetermined pressure. The outer peripheral surfaces are in contact with each other while being rotatably installed. Then, with respect to the portion corresponding to the center in the width direction of the width L1 of the tissue paper product in the laminated continuous sheet S2, the laminated continuous sheet S2 is sandwiched between the convex portion 54C and the receiving roll 54B. By conveying the sheet, the line-shaped contact emboss CE for preventing delamination along the continuous direction of the laminated continuous sheet S2 is applied to the laminated continuous sheet S2.

  Note that the laminated continuous sheet S2 is wound up by the subsequent winding means 56 with the surface on the side facing the roller 54A to which the contact embossing CE is applied as the outer peripheral side.

  By providing the contact embossing CE in this way, delamination of the secondary continuous sheet S2 formed by laminating a plurality of primary continuous sheets (S11, S12) is prevented.

  Moreover, in this contact embossing process 54, although the metal-made hard roller 54A which has the fine convex part 54C on the surface was used as the roller 54A in this embodiment, delamination is prevented with respect to the secondary continuous sheet S2. It is only necessary to form a line-shaped joining portion. For example, instead of the roller 54A, a roller having a fine needle-like member on the surface can be used as the roller.

  Furthermore, the means for joining is not limited to the above example, and the tip shape of the convex portion may be a point, square, rectangular, circular, elliptical shape, etc. A tip having a slender linear shape or a thin and slanting linear shape may be used as the roller.

  On the other hand, the arrangement of the protrusions may be equally spaced, but may not be staggered or evenly spaced. In addition to arranging the protrusions in a row and providing contact embossing continuously, It is also conceivable to arrange the parts in two or more rows. Then, a plurality of groups in which convex portions are arranged so as to provide a plurality of rows of contact embossing closely may be arranged to provide a plurality of contact embossing groups. In addition, as a joining process, you may join by other means, such as an ultrasonic wave, besides joining by applying a pressure mechanically as mentioned above.

  In the first embodiment, since it is a form of double embossing, when this contact embossing is not performed, it is very desirable to provide contact embossing because the continuous sheet is likely to be displaced.

(Slit process and winding process)
The ply machine X2 according to the first embodiment has a slit means 55 at the subsequent stage of the contact embossing means 54, and the laminated continuous sheet S2 to which the chemical solution is applied and the emboss is applied and the contact emboss is applied is the slit means. 55 is supplied.

  The slit means 55 includes a plurality of roll cutters and receiving portions arranged in parallel in the width direction of the laminated continuous sheet S2. In the slit means 55, the laminated continuous sheet S2 is the width of tissue paper or a multiple thereof. It is slit so as to have a width.

  Then, the slit laminated continuous sheet S2 is guided and wound up by the winding means 56 to form a secondary raw roll R. At this time, each laminated continuous sheet that has been slit is wound coaxially, and a plurality of secondary raw rolls R having a product width of tissue paper or a multiple of the width are simultaneously formed. Here, the winding means 56 has two winding drums 56A for guiding each slit laminated continuous sheet to the secondary raw roll R, and these two winding drums 56A are the secondary raw rolls. The laminated continuous sheet S2 is guided in contact with the outer peripheral surface of the roll R.

  Thus, the secondary raw roll R according to the present invention is formed.

(Calendar process)
On the other hand, in the ply machine X2 according to the present invention, one or more calendar parts 52 are provided between the overlapping part 51 and the winding part 56, and the laminated continuous sheets S2 and S3 can be calendered. . In the illustrated example, it is preferably provided after the overlapping portion 51 and before the chemical solution applying means 53. Thus, it is desirable to provide the calendar means 52 at a position before applying the chemical solution and before applying the emboss.

  The type of calendar in the calendar unit 52 is not particularly limited, but is preferably a soft calendar or a chilled calendar for reasons of improving the smoothness of the surface and adjusting the paper thickness. The soft calendar is a calendar using a roll coated with an elastic material such as urethane rubber, and the chilled calendar is a calendar made of a metal roll.

  The number of calendar parts can be changed as appropriate. If there is a plurality of installations, it has the advantage that it can be sufficiently smoothed even if the processing speed is high. On the other hand, one installation has the advantage that installation is possible even if the space is small.

  When two or more calendar parts are installed, they can be arranged side by side in the horizontal direction, the up-down direction, or the oblique direction, and these installation directions can be combined. When arranged side by side in the horizontal direction, the holding angle becomes smaller, so the processing speed can be increased, and when arranged side by side in the vertical direction, the installation space can be reduced. The holding angle referred to here means an angle during which the sheet is in contact with the roll as viewed from the center of the roll axis (a part of an arc of a cross section perpendicular to the axis) (hereinafter the same).

  Paper making is also performed as control factors such as the calendar type, the nip line pressure, and the number of nips in calendar processing, and these control factors are preferably changed as appropriate according to the quality of tissue paper to be obtained, that is, the paper thickness and surface properties.

(Other processes)
Here, in the ply machine X2 in the present invention, when manufacturing the secondary raw roll R, the processing speed is 350 to 1100 m / min, preferably 700 to 1100 m / min, more preferably 900 to 1000 m / min. Is desirable. If it is less than 350 m / min, it cannot be said that the productivity is sufficient. On the other hand, if it exceeds 1100 m / min, stable production becomes difficult. In particular, 700 m / min, more preferably 900 m / min, is preferable in terms of increasing productivity, such as supply to the subsequent multi-stand type interfolder and sufficient stock management. When it is 1000 m / min or less, the stability is more excellent.

  A processing speed of at least 350 m / min, usually 700 m / min or more, and preferably 900 m / min or more is an extremely high processing speed in terms of the productivity of conventional toilet rolls.

  When the example of the manufacturing method of the secondary material roll in the ply machine X2 according to the first embodiment described above is taken, the embossing is applied by the embossing means 60 after the chemical liquid applying means 53, so that the embossing is performed by the chemical liquid application. There is no collapse. Moreover, since embossing is provided to the continuous sheet with high humidity after chemical | medical solution provision, embossing is provided firmly.

  Furthermore, since it is a so-called double embossing mode in which each continuous sheet is superposed after embossing is applied to each continuous sheet, there is a gap between the continuous sheets, high water retention between the sheets, and soft and bulky It becomes a laminated continuous sheet. Moreover, since each continuous sheet is in a free state in a portion other than the portion joined by contact embossing, it becomes a soft laminated continuous sheet.

  Since the chemical solution applying means is arranged after the overlapping portion and the chemical solution is applied in a stacked state, it is possible to apply a uniform chemical solution to each surface.

  And since the secondary raw fabric roll of this characteristic is manufactured, the tissue paper product excellent in the said characteristic using this can be manufactured.

  In the ply machine X2 according to the first embodiment, predetermined means (calendar means 52 and contact embossing means 54 in the example of FIG. 2) arranged before and after the chemical solution giving means 53 and the embossing giving means 60 are provided. When manufacturing tissue paper products that are not provided with chemicals and embossing by arranging them close to each other or by providing appropriate guide rolls, the laminated continuous sheet S2 is bypassed by the chemical application unit 53 and the embossing unit. Can be transported directly.

  If it does in this way, it will become possible to change the presence or absence of a chemical | medical solution and embossing easily only by conveying lamination | stacking continuous sheet S2 without letting the chemical | medical solution provision means 53 and the embossing provision means 60 pass. For example, in the ply machine X2 shown in FIG. 2, when manufacturing a tissue paper product to which no chemical solution is applied, the laminated continuous sheet S2 is directly transferred from the calendar means 52 to the contact embossing means 54, and the ply peeling part 57 and the chemical solution applying means 53 are transferred. The paper run is configured to flow the laminated continuous sheet S2 without passing through the embossing means 60.

  On the other hand, in the present invention, when there is a difference in the chemical application amount on each outer surface of the sheet, there is a concern that the texture on both sides of the tissue paper is different and the feeling of use is different. The surface of the primary continuous sheets S11 and S12 having different chemical application amounts is kept in a state of being opposed to each other by being left in the state of a roll before the time to be processed in a multi-stand type interfolder or the like. Therefore, as shown in FIG. 36, the chemical component between the continuous sheets is gradually transferred (gray arrow in the figure), and the difference is gradually reduced during seasoning. In addition, the white arrow in FIG. 36 shows the osmosis | permeation direction of a chemical | medical solution component.

[Process and storage process in multi-stand type interfolder]
A large number of secondary fabric rolls R manufactured by the above-described ply machine X2 are set in a multi-stand type interfolder, a secondary continuous sheet is drawn out from the set secondary fabric roll R, folded and stacked. A tissue paper bundle is produced. Hereinafter, an example of the multi-stand type interfolder will be described.

  4 to 6 show an example of the multi-stand type interfolder. Reference numeral 2 in the figure denotes secondary raw rolls R, R... Set on a secondary raw roll support portion (not shown) of the multi-stand type interfolder 1. These secondary raw rolls R, R... Are set side by side in the direction (the horizontal direction in FIG. 4 and the front-to-back direction in FIG. 5) in which the required number is perpendicular to the illustrated plane. Each secondary raw roll R has slits in the width of tissue paper product in the above-described manufacturing equipment and manufacturing method of the secondary raw roll for tissue paper products. It is wound and set in double width.

  The continuous belt-like secondary continuous sheets 3A and 3B unwound from the secondary raw roll R are guided by guide means such as guide rollers G1 and G1 and fed into the folding mechanism section 20. Further, the folding mechanism section 20 is provided with a folded plate group 21 in which a necessary number of folded plates P, P... Are arranged in parallel as shown in FIG. For each folded plate P, guide rollers G2, G2 and guide round bar members G3, G3 for guiding a pair of continuous secondary continuous sheets 3A or 3B are respectively provided at appropriate positions. Further, below the folded plates P, P..., A conveyor 22 is provided that receives and conveys the laminated band 30 that is stacked while being folded.

  A folding mechanism using this type of folded plates P, P... Is a mechanism known from, for example, US Pat. As shown in FIG. 7, this type of folding mechanism folds each continuous secondary continuous sheet 3A, 3B... Into a Z-shape and side ends of adjacent secondary continuous sheets 3A, 3B. Stack the parts together.

  9 to 12 show in detail the portions of the folding mechanism 20 that are particularly related to the folded plate P. FIG. In the folding mechanism unit 20, a pair of continuous secondary continuous sheets 3A and 3B are guided for each folded plate P. At this time, the continuous secondary continuous sheets 3A and 3B are guided by the guide round bar members G3 and G3 while being shifted in position so that the side end portions do not overlap each other.

  A continuous secondary continuous sheet that is overlapped on the lower side when guided by the folded plate P is defined as a first continuous secondary continuous sheet 3A, and a continuous secondary continuous sheet that is overlapped on the upper side is a second continuous sheet. As shown in FIGS. 7 and 10, these continuous secondary sheets 3A and 3B are the second continuous secondary continuous sheet 3A of the first continuous secondary continuous sheet 3A. The side end e1 that does not overlap the sheet 3B is folded back to the upper side of the second continuous secondary continuous sheet 3B by the side plate P1 of the folded plate P, and as shown in FIGS. The side end e2 of the continuous secondary continuous sheet 3B that does not overlap with the first continuous secondary continuous sheet 3A is folded downward so as to be drawn under the folded plate P from the slit P2 of the folded plate P. . At this time, as shown in FIGS. 7 and 12, the side end e3 (e1) of the continuous secondary continuous sheet 3A stacked while being folded in the upstream folded plate P is second from the slit P2 of the folded plate P. Are guided between the folded portions of the continuous secondary sheet 3B. In this way, each continuous secondary continuous sheet 3A, 3B... Is folded into a Z-shape and the side edges of adjacent continuous secondary continuous sheets 3A and 3B are crossed together. In some cases, when the top tissue paper is pulled out, the side edge of the next tissue paper is pulled out.

  As shown in FIG. 4, the laminated strip 30 obtained by the multi-stand type interfolder 1 as described above is cut (cut) at a predetermined interval in the flow direction FL by the cutting means 41 at the subsequent stage, and the tissue is cut. The tissue paper bundle 30a is stored in the storage box B in the subsequent equipment as shown in FIG. 8A.

  Thus, the tissue paper product according to the first embodiment is manufactured.

  In the multi-stand type interfolder 1 as described above, the paper direction of the laminated strip 30 is the vertical direction (MD direction) along the flow direction FL, and the horizontal direction along the direction orthogonal to the flow direction. Direction (CD direction). For this reason, the direction of the tissue paper constituting the tissue paper bundle 30a obtained by cutting the laminated band 30 into a predetermined length is the extension of the folded portion of the tissue paper as shown in FIG. The vertical direction (MD direction) is along the existing direction, and the horizontal direction (CD direction) is along the direction orthogonal to the extending direction of the folded portion of the tissue paper.

  FIG. 8B shows an example of a product in which the tissue paper bundle 30a is stored in the storage box B. A perforation M is provided on the upper surface of the storage box B, and a part of the upper surface of the storage box B is broken by the perforation M so that the upper surface of the storage box B is opened. The opening is covered with a film F having a slit at the center, and the tissue paper T can be taken out through the slit provided in the film F.

  By the way, as described above, the direction of the paper of the tissue paper constituting the tissue paper bundle 30a is the horizontal direction (CD direction) along the direction orthogonal to the extending direction of the folded portion of the tissue paper. As shown in (b), when pulling out the tissue paper T from the storage box B, the pulling direction is along the lateral direction (CD direction) of the tissue paper T.

“Second Embodiment”
Next, a second embodiment of the present invention will be described with particular reference to FIG. This embodiment is a mode in which a part of the steps in the ply machine X2 is different from that of the first embodiment. [Paper making process: manufacturing method and manufacturing equipment of primary raw roll] and [process and storing process in multi-stand type interfolder] are the same as those in the first embodiment, and are as described above.

  The ply machine X2 according to the second embodiment applies a chemical solution in a non-laminated state to each of the continuous sheets S11 and S12 constituting the laminated continuous sheet S2, and further gives an emboss in the non-laminated state. And it is the aspect which is set as the secondary original fabric roll R which laminated | stacked after that and wound up the lamination | stacking continuous sheet S2 to which the chemical | medical solution and embossing were provided. That is, the point which provides a chemical | medical solution in a non-laminate state is a point different from 1st Embodiment.

  In the ply machine X2 according to the second embodiment according to the example shown in FIG. 13, the overlapping portion 51, the ply peeling portion 57, the chemical solution applying means 53, the embossing means 60, the re-overlaying portion 58, and the contact embossing means. 54, the slit means 55, and the winding means 56 are provided in this order, and in the ply machine X2, after the chemical solution is applied, embossing is applied in the form of double embossing to obtain a secondary raw roll R.

  In the ply machine X2 according to the second embodiment, each of the continuous sheets S11 and S12 is configured to be supplied with the chemical solution supplied to the chemical solution application unit 53, and the chemical application surface is a subsequent layer of re-lamination. When it is set as the laminated continuous sheet S2 in the process, the surface becomes the outer surface of the laminated continuous sheet S2.

  In the second embodiment, the same effect as in the first embodiment can be obtained. Moreover, in the second embodiment, there is an advantage that the chemical application condition is easily different between the continuous sheets S11 and S12.

  In the second embodiment, each of the primary solution sheets S11 and S12 unwound from the primary material roll JR is directly provided to each chemical solution applying device 53A without the overlapping portion 51 and the ply peeling portion 57. , 53B. In this case, the re-overlapping unit 58 becomes a stacking unit that replaces the overlapping unit 51. However, in the case where the overlapping portion 51 and the ply peeling portion 57 are provided, it is not necessary to separately configure the supply path by a guide roller or the like to the chemical solution applying means for the primary continuous sheet unwound from each primary raw roll. This is advantageous in terms of space reduction.

  Even in the second embodiment, since it is a form of double embossing, when this contact embossing is not performed, the continuous sheet is likely to be displaced, and it is extremely desirable to provide such contact embossing.

“Third embodiment”
Next, a third embodiment of the present invention will be described with particular reference to FIG. This embodiment is also a mode in which some processes in the ply machine X2 are different from the first embodiment. [Paper making process: manufacturing method and manufacturing equipment of primary raw roll] and [process and storing process in multi-stand type interfolder] are the same as those in the first embodiment, and are as described above.

  The ply machine X2 according to the third embodiment includes an overlapping portion 51, a chemical solution applying unit 53, an emboss applying unit 60, a slit unit 55, and a winding unit 56 in this order. Later, embossing is applied in a so-called single embossing manner to form a secondary raw roll R.

  That is, the point which does not have the ply peeling part 57, the re-overlapping part 58, and the contact embossing means 54, and the point which provides embossing in a lamination | stacking state are especially different points from 1st Embodiment.

  In the third embodiment, the laminated continuous sheet S2 laminated in the overlapping portion 51 is supplied in this order to the chemical solution applying unit 53 and the emboss applying unit 60, and both the chemical solution application and the emboss application are in a laminated state. This is performed for the continuous sheet S2. Therefore, the embossing aspect in the third embodiment is a so-called single embossing aspect. That is, it is an aspect in which the convex portion of the embossing roll is pressed only from one side of the laminated continuous sheet S2, and only the embossed concave corresponding to the convex portion of the embossing roll is formed on one side of the laminated continuous sheet S2 after embossing. Further, only the embossed convex portion corresponding to the embossed concave portion is present on the opposite surface. The embodiment of single embossing is excellent in that the ply machine X2 is operated at high speed in order to give embossing to the laminated continuous sheet S2 in a laminated state with relatively strong paper strength. Moreover, the lamination integration of the primary continuous sheets S11 and S12 constituting the laminated continuous sheet S2 is enhanced. For this reason, joining of each continuous sheet S11 and S12 is maintained, without performing contact embossing. In addition, about the specific structure and conditions of embossing, the structure similar to the structure shown in 1st Embodiment may be sufficient.

  On the other hand, in the third embodiment, as described above, in the laminated continuous sheet S2 after embossing, only one embossed concave corresponding to the embossed convex is formed on one surface, and the other surface corresponds to the embossed concave. This is an embodiment in which only embossed convex portions exist, and the surface characteristics of each surface are different. In the third embodiment, regarding the chemical application in the chemical application unit 53, the chemical application amount on the surface in contact with the nip roll in the subsequent emboss application unit 60 is increased in relation to the difference in characteristics of each surface. It is desirable that the nip roll contact surface (the surface having the embossed convex portion) be wound so that the winding outer surface becomes the winding outer surface during winding by the winding means 56. If it does in this way, after winding up to the secondary original fabric roll R, a chemical | medical solution will become easy to spread | diffuse in the sheet | seat which comprises a winding layer and an embossing convex part formation surface, and the winding slippage of the secondary original fabric roll R , It will be difficult to lose shape.

  Even in the case of taking the example of the method of manufacturing the secondary raw roll R in the ply machine X2 according to the third embodiment as described above, the embossing is applied after the chemical application unit 53, so that the embossing may be lost due to the application of the chemical. Absent. Moreover, since embossing is provided to the continuous sheet with high humidity after chemical | medical solution provision, embossing is provided firmly. Since the chemical solution applying means 53 is arranged at the subsequent stage of the overlapping portion 51 and the chemical solution is applied in a stacked state, it is possible to apply a uniform chemical solution to each surface. And since the secondary raw fabric roll of this characteristic is manufactured, the tissue paper product excellent in the said characteristic using this can be manufactured.

“Fourth Embodiment”
Next, a fourth embodiment of the present invention will be described with particular reference to FIG. This embodiment is also a mode in which some processes in the ply machine X2 are different from the first embodiment. [Paper making process: manufacturing method and manufacturing equipment of primary raw roll] and [process and storing process in multi-stand type interfolder] are the same as those in the first embodiment, and are as described above.

  The ply machine X2 according to the fourth embodiment includes an overlapping portion 51, an embossing means 60, a chemical liquid applying means 53, a slit means 55, and a winding means 56 in this order. Embossing is given before in the form of single embossing to form a secondary raw roll.

  In the fourth embodiment, as understood from FIG. 15, the front-rear relationship between the chemical solution applying unit 53 and the emboss applying unit 60 in the third embodiment is changed.

  Similarly to the third embodiment, the fourth embodiment is also a single embossing mode. Therefore, the chemical application in the chemical application unit 53 is performed on the surface in contact with the nip roll 62 in the previous emboss application unit 60. It is desirable to increase the amount and wind the winding means 56 so that the nip roll contact surface (the surface having the embossed convex portion) becomes the winding outer surface during winding.

  The fourth embodiment also has the same effect as that of the third embodiment. However, in this embodiment, the emboss tends to collapse because the chemical solution is applied after embossing. However, since the collapse of the emboss is caused by the extension of the embossed portion, the fourth embodiment has an advantage that the smoothness of the surface on the convex surface of the emboss is improved because the emboss is collapsed.

“Fifth Embodiment”
Next, a fifth embodiment of the present invention will be described with particular reference to FIG. Note that this embodiment is also a mode in which some processes in the ply machine X2 are different from the first embodiment. [Paper making process: manufacturing method and manufacturing equipment of primary raw roll] and [process and storing process in multi-stand type interfolder] are the same as those in the first embodiment, and are as described above.

  In the ply machine X2 according to the fifth embodiment, the continuous sheets S11 and S12 constituting the laminated continuous sheet S2 are embossed in a non-laminated state, and then laminated to form the laminated continuous sheet S2. This is a mode in which a chemical solution is applied in the state of the laminated continuous sheet S2 and a secondary raw roll R is wound around the laminated continuous sheet S2 to which the chemical solution and embossing are applied. That is, the front-rear relationship between the chemical solution application and the emboss application is generally different from the first embodiment.

  The ply machine X2 according to the fifth embodiment includes an overlapping portion 51, a ply peeling portion 57, an embossing means 60, a re-overlaying portion 58, a chemical solution applying means 53, a contact embossing means 54, a slit means 55, a winding means. The take-up means 56 is provided in this order.

  In the fifth embodiment, the continuous sheets S11 and S12 after the ply peeling are supplied to the embossing devices 60A and 60B constituting the embossing device 60, and then the re-superposition unit 58 and the laminated continuous sheets S2 and Thereafter, the chemical solution is applied to the laminated continuous sheet S2 by the chemical solution applying means 53.

  In the form shown in the figure, although the overlapping portion 51 and the ply peeling portion 57 are provided, the primary continuous sheets S11 and S12 unwound from the primary raw roll JR are not directly provided. You may make it supply to embossing apparatus 60A, 60B. In this case, the re-overlapping unit 58 replaces the overlapping unit 51.

  The fifth embodiment is a so-called double embossing mode in which each continuous sheet S11, S12 is superposed after embossing is applied to each continuous sheet S11, S12, so there is a gap between the continuous sheets and high water retention between the sheets. It becomes a soft and bulky laminated continuous sheet. Moreover, since each continuous sheet is in a free state in a portion other than the portion joined by contact embossing, it becomes a soft laminated continuous sheet.

  Since the chemical solution applying means is arranged after the overlapping portion and the chemical solution is applied in a stacked state, it is possible to apply a uniform chemical solution to each surface.

  And since the secondary raw fabric roll of this characteristic is manufactured, the tissue paper product excellent in the said characteristic using this can be manufactured.

  Moreover, since a chemical | medical solution is provided after embossing similarly to 4th Embodiment, it exists in the tendency for embossing to collapse. However, in the fifth embodiment, since the chemical solution is applied to the concave embossed surface by double embossing, the collapse of the embossing has little influence.

  Since this embodiment is also a double embossing mode, it is extremely desirable to provide contact embossing.

“Sixth Embodiment”
Next, a sixth embodiment of the present invention will be described with particular reference to FIG. This embodiment is also a mode in which some processes in the ply machine X2 are different from the first embodiment. [Paper making process: manufacturing method and manufacturing equipment of primary raw roll] and [process and storing process in multi-stand type interfolder] are the same as those in the first embodiment, and are as described above.

  A ply machine X2 according to the sixth embodiment shown in FIG. 17 includes an overlapping portion 51, a ply peeling portion 57, an embossing means 60, a chemical solution applying means 53, a re-superposing portion 58, a contact embossing means 54, and a slit. Means 55 and winding means 56 are provided in this order, and in such a ply machine X2, embossing is applied in the form of double embossing after the chemical solution is applied to form a secondary material roll.

  In the sixth embodiment, as can be understood from FIG. 17, the front-rear relationship between the chemical solution applying unit 53 and the embossing applying unit 60 in the second embodiment is changed.

  Also in the sixth embodiment, the overlapping portion 51 and the ply peeling portion 57 can be omitted, and the re-overlapping portion can be replaced with the overlapping portion.

  In the illustrated example, the continuous sheets S11 and S12 are temporarily laminated after embossing, and are peeled again before the chemical solution applying means 53, but this is not necessarily required.

  The sixth embodiment has the same effects as the fifth embodiment.

“Seventh Embodiment”
Next, a seventh embodiment of the present invention will be described with particular reference to FIGS. This embodiment is also a mode in which some processes in the ply machine X2 are different from the first embodiment. [Paper making process: manufacturing method and manufacturing equipment of primary raw roll] and [process and storing process in multi-stand type interfolder] are the same as those in the first embodiment, and are as described above.

  In the seventh embodiment, the embossing provision means 60 also serves as the chemical solution provision means 53. A ply machine X2 according to the sixth embodiment shown in FIGS. 18 and 19 includes an overlapping portion 51, a ply peeling portion 57, an embossing means 60 (chemical solution applying means 53), a re-overlaying portion 58, and contact embossing. A means 54, a slit means 55, and a winding means 56 are provided in this order, and embossing is provided in the ply machine X2 in the form of double embossing to form a secondary raw roll R. In the seventh embodiment, each embossing device 60A directly does not have the overlapping portion 51 and the ply peeling portion 57, and each of the primary continuous sheets S11 and S12 unwound from the primary material roll JR is directly provided. , 60B.

  In the seventh embodiment shown in FIG. 18, a chemical solution is roll-transferred to the nip roll 62 of each embossing device constituting the embossing device 60, and the chemical solution is applied simultaneously with the embossing. In the seventh embodiment shown in FIG. 19, the chemical liquid is applied simultaneously with embossing by spraying the chemical liquid onto the embossing roll 61 and transferring the chemical liquid. In addition, you may roll-transfer a chemical | medical solution to an embossing roll.

  Since the seventh embodiment is a so-called double embossing mode in which each continuous sheet is superposed after embossing is applied to each continuous sheet, there is a gap between the continuous sheets, and there is high water retention between the sheets. It becomes a soft and bulky laminated continuous sheet. Moreover, since each continuous sheet is in a free state in a portion other than the portion joined by contact embossing, it becomes a soft laminated continuous sheet.

  And since the secondary raw fabric roll of this characteristic is manufactured, the tissue paper product excellent in the said characteristic using this can be manufactured.

“Specific examples of chemical application means in ply machines”
The specific example of the chemical | medical solution provision means (chemical | medical solution provision process) 53 in the ply machine X2 common to each said embodiment is further explained in full detail below.

[Flexo printing]
An example in which a flexographic printing machine is used as the chemical solution applying means 53 will be described with reference to FIGS. Since flexographic printing uses a resin-based elastic printing plate, even if there is a slight unevenness of the crepe on the surface of the laminated continuous sheet S2 or each of the continuous sheets S11, S12 (hereinafter referred to as unit laminated continuous sheet S2 etc.) The pressure can be adjusted and coating without unevenness is possible. In particular, even when high speed coating is performed at 700 m / min or higher, and even 900 m / min, wrinkles are unlikely to enter into the laminated continuous sheet S2 after chemical application. In addition, one roll can handle a wide range of chemical viscosities, providing advantages in terms of management and equipment maintenance, and improving productivity.

  Here, when the chemical solution is applied to the laminated continuous sheet S2 or the like at a high speed in the ply machine X2, the number of flexographic printing plate rolls is 10 to 60 lines, preferably 15 to 40 lines, and particularly preferably 20 to 35 lines. And If the number of wires is less than 10, a lot of coating unevenness occurs. On the other hand, if the number of wires exceeds 60, paper dust tends to clog.

  The number of lines of anilox roll is 10 to 300 lines, preferably 25 to 200 lines, particularly preferably 50 to 100 lines. If the number of lines is less than 10, many coating irregularities occur during high-speed coating, and if the number of lines exceeds 300 lines, paper dust tends to clog. The anilox roll has a cell capacity of 10 to 100 cc, preferably 15 to 70 cc, particularly preferably 30 to 60 cc. If the cell capacity is less than 10 cc, a desired coating amount cannot be obtained. On the other hand, if the cell capacity is more than 100 cc, the amount of chemical solution scattered increases.

  Here, in the present invention, it is important that the chemical solution can be stably applied in the chemical solution application step, and the number of lines of the printing plate roll and the aniloc roll related to the operation stability is important. In addition, as a system for transferring the chemical liquid stored in the storage tank to the anilox roll, an appropriate method such as a doctor chamber type or a touch roll type is adopted. Examples of forms employing these flexographic printing methods will be described in further detail below.

  Flexographic printing is excellent in that a chemical solution can be applied very stably at the above-described high processing speed in the ply machine X2.

(Example embodiment of doctor chamber system)
An example in which the doctor chamber format in the flexo printing is applied to the present invention will be described with reference to FIGS.

  In this example, two flexographic printing machines 91A and 91B are used to apply chemicals to the front and back surfaces of the laminated continuous sheet S2 or the continuous sheets S11 and S12.

  In each of the printing machines 91A and 91B, doctor chambers 92A and 92B containing a chemical solution are arranged to face the rotatable anilox rolls 93A and 93B, and the chemical solution is transferred from the doctor chambers 92A and 92B to the anilox rolls 93A and 93B. It is supposed to be handed over. Further, printing plate rolls 94A and 94B that are in contact with the anilox rolls 93A and 93B and are also in contact with one surface of the laminated continuous sheet S2 and the like are rotatably installed, and the chemical solution is transferred from the anilox rolls 93A and 93B to the printing plate rolls 94A and 94B. Is to be handed over. Then, while applying pressure to the laminated continuous sheet S2 and the like with the elastic rolls 95A and 95B facing the printing plate rolls 94A and 94B with the laminated continuous sheet S2 and the like interposed therebetween, the laminated continuous sheets are applied from the printing plate rolls 95A and 95B. Apply chemicals to S2 etc.

  Each of the doctor chambers 92A and 92B is connected to a storage tank 98 for storing the chemical liquid L via a supply hose 96 and a return hose 97, and constitutes a part of the chemical liquid circulation path (hereinafter, each printing machine 91A and 91B). For explaining the same structure, one of them may be written in parentheses as in the doctor chamber 91A (91B)). The storage tank 98 can be shared by the doctor chambers 92A and 92B. Although not shown, the temperature of the chemical solution is monitored and controlled in a coating device such as a paper powder or air filtration device, doctor chamber 92A or 92B contained in the chemical solution circulating in the chemical solution circulation path, and the viscosity of the chemical solution is stabilized. Intermediate tanks and piping heaters can be installed.

  The chemical solution is supplied from the storage tank 98 to the doctor chamber 91 </ b> A (91 </ b> B) by the supply pump 99 through the supply hose 96 by pressure supply, and the extrusion amount (flow rate) of the chemical solution is adjusted by opening / closing the adjustment valve 100. The Further, the return of the chemical solution from the doctor chamber 91A (91B) to the storage tank 98 is performed by the suction pump 101 via the return hose 97.

  The doctor chamber 91A (91B) includes a chamber portion 102 and blades 103 and 104 in which a chemical solution is stored. The chamber portion 102 is open at the end on the anilox roll 93A (93B) side, and is connected to a supply hose 96 and a return hose 97 via connecting portions 105 and 106. During the chemical solution circulation, the chemical solution L is stored and supplied to the anilox roll 93A (93B). On the other hand, the blades 103 and 104 are provided so as to come into contact with the anilox roll 93A (93B), and the chemical solution L is squeezed while being pressed against the anilox roll 93A (93B), so that the chemical solution to the anilox roll 93A (93B) is drawn. The supply amount is constant.

  On the other hand, as shown in FIG. 22, a hole 106 a that is an opening portion having a predetermined diameter is formed on the upper surface of the connection portion 106 between the return hose 97 that serves as a return path for the chemical solution L and the chamber portion 102. Even if the chemical liquid L in the connecting portion comes into contact with the outside air through the hole 106a and the chemical liquid L is sucked by the suction pump 101, the chemical liquid L comes into contact with the outside air so that the internal pressure in the chamber portion 102 can be brought close to the external pressure. It is configured. Thereby, the internal pressure fluctuation in the doctor chamber is suppressed. Note that the hole 106a may be formed so as to communicate with the upper surface of the chamber 102, for example, as long as fluctuations in the internal pressure of the chamber 102 are suppressed. The hole 106 a may be provided on the side surface as long as it is above the liquid level of the chemical solution L in the chamber portion 102.

  The hole 106a is provided with a determining means for determining excessive supply of the chemical solution to the chamber 102. The discriminating means can be, for example, a transparent or translucent tube-like member 106b extending upward with the hole 106a side as the lower end, and in the process of circulating the chemical liquid L, the chemical liquid L passes through the hole in the tube. It can be visually confirmed whether or not it flows into 106b. When inflow into the tube 106b is confirmed, the amount of the chemical solution stored in the chamber portion 102 is excessive (the chemical solution L is in an oversupply state with respect to the anilox roll 91A (91B)). Can be grasped. Therefore, the user who visually confirms the excessive state can eliminate the excessive state by, for example, adjusting the extrusion amount (flow rate) of the chemical liquid L by operating the adjustment valve 100. Since the tube 106b is hollow and the upper end side is in contact with the outside air, the operation of the hole 106a is not canceled out.

  In addition, by providing the upper end (free end) of the tube 106b downward, it is possible to prevent foreign matters such as paper dust from entering the hole 106b. In addition, an air filter may be installed at the upper end or the hole of the tube 106b to prevent foreign matters such as paper dust from entering.

  Note that the oversupply state of the chemical liquid L to the chamber unit 102 may be automatically determined, and the determination result may be notified to the user.

  In this example, as shown in FIG. 23, a sensor 106d is attached to a cylindrical portion 106c in which the peripheral edge of the hole portion 106a is extended upward, and a determination result is notified from the notification portion in response to a signal from the sensor 106d. .

  The sensor 106d includes, for example, a light emitting element (not shown) that emits light toward the detected body and a light receiving element (not shown) that receives the reflected light from the detected body, and reflects the reflected light from the light receiving element. Based on the amount of received light, it is detected whether or not the height of the chemical liquid L flowing into the cylindrical portion 106c has reached the height position (y1 shown in FIG. 22) where the sensor 06d is provided.

  For example, the notification unit 106e is a speaker or the like, and when the sensor 106d detects that the height of the chemical liquid L flowing into the cylindrical unit 106c has reached the height position where the sensor 106d is provided, The user is notified by voice.

  In this example, when an excessive state is reached, the user can know the fact by the notification unit 106e, and by operating the adjustment valve 100 to adjust the extrusion amount (flow rate) of the chemical liquid L, It becomes possible to eliminate the excessive state.

  Furthermore, as shown in FIG. 24, in addition to the automatic discrimination function, the determination of the oversupply state of the chemical solution L to the chamber portion 102 includes the adjustment portion 106f having a needle valve structure having a needle valve and an orifice in the cylindrical portion 106c. It can be configured to adjust the amount of opening of the portion of the hole 106b that comes into contact with the outside air. Thus, by adjusting the substantial opening amount of the hole portion 106b by the adjusting portion 106f, the opening amount of the hole portion 106b can be appropriately adjusted according to the internal pressure fluctuation amount in the chamber portion 102. . Therefore, when the height of the chemical liquid L flowing into the cylindrical portion 106c reaches the detection position by the sensor 103e, not only the adjustment of the extrusion amount of the chemical liquid L is dealt with, but also the hole 106b of the adjusting portion 106f By adjusting the substantial opening amount, it is possible to improve the air venting capability of the hole 106b (expand the contact area with the outside air) and suppress the internal pressure fluctuation in the chamber portion 102. Thereby, the ejection of the chemical liquid L from the chamber portion 102 due to the internal pressure fluctuation and the suction of the chemical liquid L on the anilox roll 93A (93B) to the doctor chamber 92A (92B) side are suitably prevented, and the circulation of the chemical liquid L is prevented. Is promoted.

  On the other hand, in the doctor chamber type flexographic printing machine, the anilox roll 93A (93B) is provided so as to contact the blades 103 and 104 of the doctor chamber 92A (92B), and the opening of the chamber portion 102 of the doctor chamber 92A (92B) is provided. It is configured such that the chemical liquid L to be supplied is adsorbed on the peripheral surface.

  The printing plate roll 94A (94B) has a cylindrical shape whose peripheral surface is made of a resin material such as a rubber material, and the peripheral surfaces (points P1 and P2 shown in FIG. 4) are anilox rolls 93A (93B) and The elastic rolls 95A (95B) are provided so as to come into contact with the peripheral surface of the laminated continuous sheet S2 or the like wound around the elastic rolls 95A (95B), and are configured to be rotatable.

  The printing plate roll 94A (94B) rotates in the r2 direction when the elastic roll 95A (95B) rotates in the r1 direction, and rotates the anilox roll 93A (93B) in contact with the right end in the r1 direction. The printing plate roll 94A (94B) acquires the chemical solution L adsorbed on the peripheral surface of the anilox roll 93A (93B) at a point P2, conveys it to the point P1 by turning in the r2 direction, and the laminated continuous sheet S2 or the like. Transcript to. Even if the chemical solution L adsorbed by the anilox roll 93A (93B) remains unevenly in a layered manner on the peripheral surface of the anilox roll 93A (93B), it is transferred to the peripheral surface of the plate roll 94A (94B). The chemical liquid L can be uniformly transferred to the laminated continuous sheet S2.

  The elastic roll 95A (95B) is a columnar member that is provided adjacent to the printing plate roll 94A (94B) and rotates by applying a driving force from a motor (not shown) or the like, and is laminated on the peripheral surface. The continuous sheet S2 is configured to be gripped. Therefore, the elastic roll 95A (95B) is rotated in the r1 direction so as to wind the supplied laminated continuous sheet S2 and the like around the peripheral surface and rotate the printing plate roll 94A (94B) and the anilox roll 93A (93B). The liquid L can be transferred from the printing plate roll 94A (94B) at the point of time when it is moved to the point P1 position.

  Although the direction of rotation of the elastic roll 95A (95B) is the r1 direction in FIG. 21, it may of course be configured to rotate in the r2 direction. In this case, the anilox roll 93A (93B) and the printing plate roll 94A (94B) are rotated in directions opposite to those in FIG. 16 (that is, the anilox roll 93A (93B): r2 direction, the printing plate roll 94A (94B): r1 direction). Move.

  Here, in the example shown in FIG. 21, only one supply hose 96 and one return hose 97 are connected to the chamber portion 102, but it is preferable that the chemical solution L in the width direction in the chamber portion 102 be uniform. The structure shown to 25 (A)-(C) can be illustrated. FIG. 25A shows a width direction D of a doctor chamber 92A (92B) in which an outer frame is formed in a wide rectangular shape along an anilox roll 93A (93B) that is formed wide and rotates around a rotation axis R0. This is an example of a structure in which a supply hose 96 is connected to a portion near the left and right ends of each, and a return hose 97 is connected to the center. FIG. 25B is a structural example in which three supply hoses 96 and two return hoses 97 are alternately connected at equal intervals in the width direction D. FIG. 25C is a structural example in which the supply hose 96 is connected to a plurality of locations near the upper side of the chamber portion 102 and the return hose 97 is connected to a plurality of locations near the lower side.

(Embodiment example of 2-roll transfer system)
Next, an example in which a two-roll transfer format in flexographic printing is applied will be described with reference to FIG. Also in this embodiment, two flexographic printing machines 91C and 91D are used to apply the chemical liquid L to the front and back surfaces of the laminated continuous sheet S2. In each of the printing machines 91C and 91D, dip rolls 92C and 92D, which are rotatable squeezing rolls, are immersed in the chemical liquid tanks 98C and 98D containing the chemical liquid L, and the dip rolls 92C and 92D are outside the chemical liquid tanks 98C and 98D. Are in contact with the rotatable anilox rolls 93C and 93D, and the amount of the chemical solution is appropriately adjusted, and the amount of the chemical solution is delivered to the anilox rolls 93C and 93D. Since the chemical solution L is transferred to the anilox rolls 93C and 93D through the dip rolls 92C and 92D, it is called a two-roll transfer system. Here, the dip rolls 92C and 92D serve to take up the chemical liquid L from the chemical liquid tanks 98C and 98D and adjust the excessive chemical liquid so as not to be transferred to the anilox rolls 93C and 93D.

  The anilox rolls 93C and 93D are in contact with the printing plate rolls 94C and 94D, and deliver the chemical liquid L transferred from the dip rolls 92C and 92D to the printing plate rolls 94C and 94D. The plate rolls 94C and 94D are rotatably installed, are in contact with the anilox rolls 93C and 93D, and are also in contact with one surface of the laminated continuous sheet S2, etc., and the elastic rolls 95C, The liquid L is applied to the laminated continuous sheet S2 and the like while applying pressure to the laminated continuous sheet S2 and the like at 95D.

  In this two-roll transfer method, a doctor blade may be provided for the anilox rolls 93C and 93D. In this case, the chemical solution L can be applied uniformly, and the chemical solution L is scattered from the anilox rolls 93C and 93D. However, on the other hand, high-speed coating has the disadvantage of increasing the frequency of care and replacement of the doctor blade.

  Although not shown in the chemical liquid tanks 98C and 98D, a paper powder and air filtering device included in the chemical liquid, a piping heater for monitoring and controlling the temperature of the chemical liquid, and stabilizing the chemical liquid viscosity, a laminated continuous sheet A sensor or the like for monitoring the moisture content and variation in the paper width direction using an infrared inspection machine or the like for managing the coating amount with the moisture content in the width direction such as S2 can be installed.

(Embodiment of 1 roll transfer type)
Next, a description will be given of an example of a case in which the one-roll transfer format in the bullet printing is applied to the present invention. In this example, the dip roll is omitted from the above-described two-roll transfer format (the drawing is omitted). In this case, each anilox roll is rotatably installed while being immersed in the chemical solution tank. For these anilox rolls, a doctor blade for scraping off the chemical solution on the anilox roll surface is installed. Such a flexo 1-roll transfer format has the advantage that the maintenance is relatively easy, and the advantage that the state of contamination of the blades and foreign matters such as paper dust in the chemical solution can be easily observed.

[Gravure printing]
In the present invention, a gravure printing machine can be used as the chemical solution applying means 53. Specific examples of the gravure printing machine include a direct gravure coater or an offset gravure coater. When the gravure printing is adopted, the number of gravure rolls is 40 to 160 lines, preferably 60 to 140 lines, and particularly preferably 80 to 120 lines. If the number of lines is less than 40 lines, the amount of chemical solution scattered increases, whereas if the number of lines exceeds 160 lines, paper dust tends to be clogged.

[Spray coating]
An example in which the spray coating apparatuses 110 and 110 are used as the chemical solution applying step (chemical solution applying means) 53 will be described with reference to FIGS. In this embodiment, as shown in FIG. 27, spray coating apparatuses 110 and 110 can be provided so that the chemical solution is applied to the front and back surfaces of the laminated continuous sheet S2 or the like. In order to do this, as shown in FIG. 27, a form in which a paper run is designed to be sprayable on the front and back surfaces of the laminated continuous sheet S2 and the like from the side, and a form of spraying on the front and back surfaces of the laminated continuous sheet S2 and the like The form which designs a paper run so that it may spray on front and back from the upper part can be illustrated. Of course, it is possible to take a form in which the laminated sheets such as the laminated continuous sheet S2 are once peeled and sprayed on each continuous sheet and then laminated again.

  In spray coating, since the surrounding chemical solution is likely to scatter, it is preferable to provide a hood 53F that covers the chemical solution application means 53 in order to prevent influence on other processes.

  Here, specifically, the spray coating can employ a nozzle spraying method, a rotor dampening spraying method, or the like. The types of nozzles for spraying in the nozzle type spray method include empty cone-type nozzles that spray in an annular shape, full-cone nozzles that spray in a circular shape, full-pyramid types that spray in a square shape, full-length nozzles, fan-type nozzles, etc. The nozzle diameter, the number of nozzles, the nozzle arrangement pattern, the number of nozzle arrangements, or the spray distance, spray pressure, spray angle, and spray so that the chemical liquid is sprayed uniformly in the width direction of the secondary continuous sheet. The concentration and viscosity of the liquid can be appropriately selected and used.

  Moreover, about the method of atomizing in a nozzle type spraying apparatus, it can select and use two types, a 1 fluid system or a 2 fluid system. Of these, the one-fluid spraying method applies pressure directly to the chemical liquid to be sprayed using compressed air and sprays mist droplets from the nozzle, or blows air into the nozzle from a fine hole opened on the side of the nozzle near the jet outlet. This is a method of sucking and spraying mist. In addition, the two-fluid spraying method is mixed with a liquid sprayed with compressed air inside the nozzle, an internal mixing type that atomizes, mixed with a liquid sprayed with compressed air outside the nozzle, an external mixing type that atomizes, and atomized Examples include a collision type system in which mist droplet particles collide with each other to further homogenize and atomize the mist droplet particles.

  On the other hand, with the rotor dampening spraying method, the liquid to be sprayed is sent out onto a disk that rotates at high speed, and the liquid is made into fine mist by the centrifugal force of the disk. The amount of spray liquid (coating amount) is controlled by changing the amount of liquid delivered onto the disk. Is. Rotor dampening coating device can apply a small amount of spray liquid evenly on the surface of pigment coated paper while suppressing scattering of mist droplets, and can adjust the spraying speed and particle size of mist. There is an advantage that is easy.

  In order to spray the chemical solution uniformly on the surface of the laminated continuous sheet S2, etc., the atomized particle size of the atomized chemical solution is preferably as small as possible. However, if the mist droplets are too fine, the mist droplets are swept away by the rebound of the sprayed air or the air accompanying the surface of the laminated continuous sheet S2, etc., and the mist droplets are less likely to adhere to the surface of the laminated continuous sheet S2. For this reason, in the spray coating method, the spray distance, spray pressure, spray angle, spray speed, in addition, in the case of the two-fluid method, the mixing ratio between the chemical liquid for spraying and the compressed air, the concentration and viscosity of the chemical liquid, etc. Can be adjusted to a particle size suitable for coating conditions, and if the influence of the accompanying air is great during spraying, a suction device or baffle plate (rectifying plate) for removing the accompanying air, the above-mentioned In addition, a charging electrode (electrostatic spray method) is added to improve the adhesion of mist to pigment coated paper by applying high voltage to the tip of the spray nozzle and charging the mist droplet particles. May be.

  Mist droplet particles floating as mist without being coated on the surface of the secondary continuous sheet can be sucked and collected and sprayed again.

  FIG. 29 shows a nozzle type spraying method, particularly a two-fluid type chemical spraying device 110. This device 110 has a chemical liquid passage 110A at the center and an air passage 110B around it, and atomizes the chemical liquid L ejected from the tip of the chemical liquid passage 110A by the air discharged from the air passage 110B. The chemical liquid L is sprayed in a substantially conical shape. 110C is an external protective casing that protects the nozzle from paper dust and the like, and allows the nozzle to be cleaned by air passing through a purge air passage if necessary. This kind of chemical | medical solution spraying apparatus 110 can be provided in the width direction of lamination | stacking continuous sheet S2 grade | etc., With one or more intervals.

  As described above, the sprayed chemical solution is rebounded or the mist droplets are pushed away by the air accompanying the surface of the laminated continuous sheet and the mist drops are less likely to adhere to the surface of the laminated continuous sheet S2, etc. The liquid chemical or the two-fluid liquid chemical spraying means (spray nozzle) is surrounded by the chemical liquid spraying means (spray nozzle) by the air 110G ejected from the air supply path formed in the casing 153E. Can be suitably applied to the laminated continuous sheet S2.

  FIG. 31 is an example of a rotor dampening spray device 120. In the rotor dampening spraying device 120, the fluid chamber 120B having the ejection unit 120C is rotated at a high speed, the chemical liquid L is sent into the fluid chamber 120B, and the chemical liquid in the fluid chamber is discharged from the ejection unit 120C by centrifugal force. It becomes a mist. The mist droplet diameter is controlled by changing the rotation speed of the fluid chamber 120B, and the spray liquid amount (applied amount) is controlled by changing the liquid feed amount to the fluid chamber. The rotor dampening spray device has the advantage that a small amount of spray liquid can be uniformly applied to the sheet surface while suppressing the spraying of mist droplets, and the adjustment of the spray speed, the particle size of the mist, etc. is easy. is there.

  The rotor dampening device 120 of the main body in the illustrated example is preferably provided with a shutter 120E that opens and closes the spray port 120D, and the presence or absence of spraying can be controlled by opening and closing the shutter 120E. .

[Inkjet printing]
An example in which the ink jet printing machine 130 is used as the chemical coating application process (chemical application unit) 53 will be described with reference to FIGS.

  The ink jet printing machine 130 in the illustrated example has a structure in which a tank (not shown) containing a chemical L is connected to an ink jet head 132 via a supply path 131, and the ink jet head is supplied from the tank by a supply pump (not shown). An aqueous chemical solution is supplied to 132.

  A plurality of nozzle holes 134 are linearly arranged in a portion of the inkjet head 132 facing the laminated continuous sheet S2 and the like to be applied, at least corresponding to the width of the laminated continuous sheet S2 and the like. A nozzle plate 133 is disposed.

  Here, the distance from the nozzle hole 134 to the laminated continuous sheet S2 and the like is preferably 1 to 10 mm, more preferably 1 to 3 mm. In the ink jet printing method, since the amount of liquid droplets ejected from each nozzle hole 134 is extremely small, it is easily affected by the environment of the surrounding airflow. However, if it is set to 1 to 10 mm, more preferably 1 to 3 mm, the influence is remarkably small. . The interval between paper and nozzles in a general full color printer is 1 to 1.5 mm. Since human eyes are sensitive to differences in brightness and expression of gradation, the accuracy of dot positions is required to be within several μm in order to obtain sufficient color expression by subtractive color mixing of 4 to 6 colors. On the other hand, with the aqueous chemical solution application of the present invention, the dot position accuracy is within 100 μm, and sufficiently uniform application quality can be obtained.

  In the inkjet head 132, a plurality of ejection units 135 are arranged corresponding to the respective nozzle holes, and each ejection unit 135 includes a fluid chamber 136 for temporarily storing an aqueous chemical solution to be ejected from the nozzle holes 134. And a diaphragm 137 disposed at a portion facing the nozzle plate 133 with the fluid chamber 136 interposed therebetween, a piezoelectric element that is disposed outside the fluid chamber 136 in contact with the diaphragm 137 and formed by a piezoelectric element or the like. And an element (not shown).

  A control device 138 is connected to the piezoelectric element via wiring, and a voltage is applied from the control device 138 to the piezoelectric element at a predetermined interval.

  With this structure, the aqueous chemical solution supplied from the tank to the inkjet head 132 is sent into the fluid chamber 136 that exists corresponding to each nozzle hole 134, and the control device 138 operates the piezoelectric element as necessary. By applying a voltage to the water, the aqueous chemical solution is ejected from the nozzle holes 134 all at once, and accordingly, the chemical solution is applied over the entire width of one side of the laminated continuous sheet S2, etc. Become.

  Also, the compressed air 135 is configured to feed into the inkjet head 132 of the present embodiment, and the droplets ejected from the ejection unit 135 are configured to be directed from the nozzle holes 134 to the sheet S3 through the compressed air, It is configured to prevent paper dust from clogging the nozzle holes.

  In the above-described embodiment, the structure in which the piezo element is employed in the on-demand system as the ink jet format has been described. However, a thermal jet type may be employed. Further, instead of the on-demand method, a continuous-type injection device capable of continuous injection may be employed. However, the on-demand system by electronic control is preferable, and this makes it easy to change the applied amount in the width direction and the flow direction.

  Here, in the present embodiment, more preferable conditions for applying the chemical solution by adopting the ink jet printing method are as follows: the particle velocity of the ink droplet from the nozzle hole is about 5 to 20 m / second, and the volume of one ink droplet is 5 ~ 50 pl / piece.

  Furthermore, it is desirable that the ink droplets be applied at intervals of 20 to 200 μm in the flow direction and the width direction. Thereby, even if the application amount increases or decreases, substantially uniform application is possible. The nozzle interval in the width direction is 128 to 1080 dpi (5-42 lines / mm, 128 dpi × 1 stage to 360 dpi × 3 stages).

For example, when the processing speed is 250 m / min, the ink droplet ejection speed is 5 × 10 ^{4 with} a particle velocity of ink droplets of 10 m / second, a capacity of one ink droplet of 10 pl / piece, and a nozzle spacing of 1080 dpi in the width direction. It is about dot / second / line.

[Curtain coating]
An example in which the curtain coater 150 is used as the chemical solution application step (chemical solution application means) 53 will be described. As the curtain coater 150, for example, a conventionally known curtain coater shown in FIG. 34 can be used. In addition, since the curtain coater hangs the film of the chemical solution, when coating on the front and back surfaces of the secondary continuous sheet S2, etc., the paper run should be placed so that the front and back surfaces of the secondary continuous sheet S2, etc. are positioned above. Design and apply on each side.

  In the curtain coater 150 shown in FIG. 34, the aqueous chemical solution L prepared in advance is sent from the coating solution storage tank to the coater head 151 by a feed pump or the like. The interior of the coater head 151 includes a manifold 151a and a slit 151b, each of which is finished with high precision. The supplied pseudo-adhesive is filled in the manifold 151a, and further, in a narrow gap that passes when the pseudo-adhesive is sent to the slit 151b, the influence of the dynamic pressure due to the liquid feed pump feeding is reduced, and the pressure distribution in the width direction is reduced. It is made uniform and flows out from the lip 152 to form a vertical curtain film 153L.

  The vertical curtain film 153L having a uniform profile in the width direction comes into contact with the continuously running secondary continuous sheet S2 and the like, and is applied to the secondary continuous sheet S2 and the like. Here, the edge guide 154 does not exceed the width of the coater head 151, and further exceeds the width of the secondary continuous sheet S2, etc., and the vertical curtain film is formed beyond the equal width of the secondary continuous sheet S2. The reason why the vertical curtain film 153L is formed beyond the width of the secondary continuous sheet S2 or the like is to prevent thick coating of the chemical solution L at both ends of the vertical curtain film 153L. The chemical liquid L flowing down beyond the width of the secondary continuous sheet S2 or the like is collected in the liquid receiving tank 155, returned to the coating liquid storage tank, and then applied again. Further, even when the secondary continuous sheet S2 or the like is cut and the coating is interrupted, the chemical liquid L is configured to be collected in the liquid receiving tank 155.

  The air flow accompanying the secondary associative sheet S2 and the like is shielded at the contact portion (hereinafter referred to as “coating portion”) between the secondary continuous sheet S2 and the like that are continuously running and the vertical curtain film 153L. A wind shielding plate 156 is provided to allow the vertical curtain film 153L to reach the secondary continuous sheet S2 and the like without being disturbed by the air flow. Further, the conveyance direction of the secondary continuous sheet S2 and the like is changed by the roll 157 immediately before the coating unit, thereby minimizing the influence of the air accompanying the secondary continuous sheet S2 and the like on the coating unit. It is configured as follows. In addition, in order to apply in a stable state, the height from the secondary continuous sheet S2 or the like to the outflow part at the lower part of the coater head 151 is required to some extent, but the height suitable for stability is 60 to 300 mm, Preferably it is 100-250 mm, More preferably, it is 120-180 mm.

Next, the tissue paper products (Examples) manufactured by the tissue paper product manufacturing method according to each embodiment were compared with the comparative examples.
Table 1 shows a comparison between examples and comparative examples according to the manufacturing method according to the first embodiment manufactured by the ply machine X2 shown in FIG.
Table 2 shows a comparison between an example by the manufacturing method according to the second embodiment manufactured by the ply machine X2 shown in FIG. 13 and a comparative example.
Table 3 shows a comparison between an example of the manufacturing method according to the third embodiment manufactured by the ply machine X2 shown in FIG. 14 and a comparative example.
Table 4 shows a comparison between an example by the manufacturing method according to the fourth embodiment manufactured by the ply machine X2 shown in FIG. 15 and a comparative example.
Table 5 shows a comparison between an example of the manufacturing method according to the fifth embodiment manufactured by the ply machine X2 shown in FIG. 16 and a comparative example.
Table 6 shows a comparison between examples and comparative examples according to the manufacturing method according to the sixth embodiment manufactured by the ply machine X2 shown in FIG.
Table 7 shows a comparison between an example of the manufacturing method according to the seventh embodiment manufactured by the ply machine X2 shown in FIG. 18 and a comparative example.
Table 8 shows a comparison between examples and comparative examples according to the manufacturing method according to the seventh embodiment manufactured by the ply machine X2 shown in FIG.
Moreover, about the comparative example in a table | surface, the comparative example A1 is a commercial item of the non-humidification type general-purpose tissue paper, and the comparative examples A2-A3 are the non-humidity type, and the commercial item of the high-grade type tissue paper having a high paper thickness. It is.

The physical properties, composition, etc. in each example are as shown in the table. The details are as follows.
Measured according to JIS P 8124 (1998). In the case of a two-ply tissue product, the average weight of a 2-ply sheet is listed.
Paper thickness: Measured under the condition of JIS P 8111 (1998) using a dial thickness gauge (thickness measuring instrument) “PEACOCK G type” (manufactured by Ozaki Seisakusho) (JIS P 8118 (1998)) According to the above).
Product density: The product density is the paper (2 ply) of tissue paper by “PEACOCK G type”, which is a doubled value (C) of the tissue paper product tsubo conditioned under JIS P 8111 conditions. The value is divided by the thickness (D), and the unit is expressed in g / cm ³ and three decimal places.
Dry tensile strength: Measured according to the tensile test method of JIS P 8113 (1998).
Wet tensile strength: Measured according to JIS P 8135 (1998).
Elongation rate: Measured using Minebea Co., Ltd. “Universal Tensile and Compression Tester TG-200N”.
Softness: Measured based on the handle ohmmeter method according to JIS L1096 E method. However, the test piece was 100 mm × 100 mm in size, and the clearance was 5 mm. The measurement was performed 5 times each in the vertical direction and the horizontal direction with 1 ply, and the average value of all 10 times was defined as one decimal point and expressed in units of cN / 100 mm.
MMD is an average deviation MMD of the static friction coefficient. MMD is one of the indices of smoothness. The smaller the numerical value, the smoother, and the larger the numerical value, the less smooth. As a method of measuring the MMD value, as shown in FIG. 35A, a tension of 20 g / cm is applied to the contact surface of the friction element 212 in a predetermined direction (downwardly rightward in FIG. 35A). While being brought into contact with the surface of the tissue paper 211, which is the measured sample, at a contact pressure of 25 g, it is moved 2 cm at a speed of 0.1 cm / s in the same direction as the direction in which the tension is applied. The friction coefficient at this time was measured using a friction feeling tester KES-SE (manufactured by Kato Tech Co., Ltd.), and the value obtained by dividing the friction coefficient by the friction distance (movement distance = 2 cm) was defined as the MMD value. The friction element 212 includes 20 piano wires P having a diameter of 0.5 mm adjacent to each other, and has a contact surface formed so that the length and the width are both 10 mm. The contact surface is formed with a unit bulging portion whose tip is formed of 20 piano wires P (curvature radius 0.25 mm). 35 (a) schematically shows the friction element 212, and FIG. 35 (b) shows an enlarged view of a portion surrounded by a one-dot chain line in FIG. 35 (a).
Moisture content: Measured according to JIS P 8111 (1998).
Chemical liquid application amount ... Chemical liquid application amount indicates the content of chemical liquid components in a dry state (absolutely dry) included in the unit area of tissue paper in the standard state of JIS P 8111. The content of components other than moisture in the chemical solution shall be indicated.
Chemical liquid content ratio: Chemical liquid content ratio is a chemical liquid contained in a predetermined mass of tissue paper product with the tissue paper product having a predetermined mass conditioned under JIS P 8111 as the denominator (A) (g). The ratio of (B) divided by (A) is expressed as (%), with the mass (B) (g) excluding the moisture of (b) as a molecule. (Chemical solution content%) = (B) ÷ (A) × 100 (%)
Sensory evaluation: Sensory evaluation based on the following criteria was performed for 87 consumers, with respect to softness, smoothness, thickness and moistness. The evaluation criteria are “3” for all non-humidifying general-purpose tissue papers to which no chemicals are applied, and “5” for those that felt “excellent”, “excellent”. "4" for what I felt, "3" for what I felt "equivalent to the standard", "2" for what I felt "inferior", "1" for what I felt "notably inferior"" Furthermore, regarding the tissue-applied tissue paper, the presence or absence of a sticky feeling was also evaluated, and the evaluation criteria were “◯” for “not sticky” and “x” for “sticky”.

  As can be seen from the results of the table, the softness of the example of the present invention is lower than that of the comparative example, the MMD is equal to or lower than the other examples, and the moisture content is high. Therefore, it was shown that it has a smooth, soft and moist paper quality.

  Moreover, in the sensory evaluation, the tissue paper according to the present invention has an excellent thickness feeling, and has a softness, smoothness, moist feeling equal to or higher than that of the moisturizing tissue, and the sticky feeling seen in the moisturizing tissue. It turns out that it can be reduced.

  In particular, it was also found from the examples that according to the present invention, tissue paper products with sufficient quality can be obtained even at an application speed of 900 m / min, and the productivity is excellent.

51 ... Overlapping part (lamination means) (lamination process)
52 ... Calendar means (smoothing process)
53 ... Chemical solution applying means (chemical solution applying step)
54 ... Contact embossing means (contact embossing process)
55 ... Slit means (slit process)
56 ... Winding means (winding process)
S11, S12 ... Continuous sheet S2 ... Laminated continuous sheet JR ... Primary raw roll R ... Secondary raw roll

Claims (10)

A method for producing tissue paper products to which a chemical solution is applied,
As a ply machine for producing secondary rolls for tissue paper products continuously from primary rolls made and wound by papermaking equipment;
Laminating means for laminating a continuous sheet fed from a plurality of primary raw rolls along the continuous direction to form a laminated continuous sheet;
A chemical solution applying means for applying a chemical solution to the continuous sheet;
An embossing means for embossing the continuous sheet;
Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper products or a multiple of the width,
A winding means for winding the slit laminated continuous sheets on the same axis to form a secondary paper roll of the product width of the tissue paper product or a multiple of the width;
A large number of secondary raw rolls to which a chemical solution is applied, obtained by the ply machine, are set corresponding to the folding mechanism part of the multi-stand type interfolder. Each of the secondary continuous sheets from the anti-roll is fed into the folding mechanism part, the secondary continuous sheet is folded to obtain a laminated band stacked while crossing the side edges of each secondary continuous sheet,
Thereafter, the tissue paper bundle is cut by cutting at a predetermined interval in the flow direction, and the tissue paper bundle is stored in a storage box to obtain a tissue paper product.
The manufacturing method of the tissue paper product to which the chemical | medical solution was provided characterized by the above-mentioned. A method for producing tissue paper products to which a chemical solution is applied,
As a ply machine for producing secondary rolls for tissue paper products continuously from primary rolls made and wound by papermaking equipment;
A stacking unit that stacks a primary continuous sheet fed from a plurality of primary rolls along the continuous direction to form a stacked continuous sheet;
A chemical solution applying means for applying a chemical solution to the laminated continuous sheet;
A ply peeling part where the laminated continuous sheet is separated into each continuous sheet;
An embossing means for embossing the continuous sheet separated at the ply peeling part;
A re-overlapping unit that laminates the continuous sheets separated by the ply peeling unit along the continuous direction to form a laminated continuous sheet;
Contact embossing means for applying contact embossing to the laminated continuous sheet laminated in the re-overlap part,
Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper products or a multiple of the width,
Winding means for winding each slit continuous laminated sheet on the same axis to form a secondary raw roll having a product width of tissue paper products or a multiple of the width of the tissue paper product, and in this order in the sheet flow direction Use;
A large number of secondary raw rolls to which a chemical solution is applied, obtained by the ply machine, are set corresponding to the folding mechanism part of the multi-stand type interfolder. Each of the secondary continuous sheets from the anti-roll is fed into the folding mechanism part, the secondary continuous sheet is folded to obtain a laminated band stacked while crossing the side edges of each secondary continuous sheet,
Thereafter, the tissue paper bundle is cut by cutting at a predetermined interval in the flow direction, and the tissue paper bundle is stored in a storage box to obtain a tissue paper product.
The manufacturing method of the tissue paper product to which the chemical | medical solution was provided characterized by the above-mentioned. A method for producing tissue paper products to which a chemical solution is applied,
As a ply machine for producing secondary rolls for tissue paper products continuously from primary rolls made and wound by papermaking equipment;
A stacking unit that stacks a primary continuous sheet fed from a plurality of primary rolls along the continuous direction to form a stacked continuous sheet;
A ply peeling part where the laminated continuous sheet is separated into each continuous sheet;
A chemical solution applying means for applying a chemical solution to the continuous sheet separated at the ply peeling portion;
An embossing means for embossing the continuous sheet separated at the ply peeling part;
A re-overlapping unit that laminates the continuous sheets separated by the ply peeling unit along the continuous direction to form a laminated continuous sheet;
Contact embossing means for applying contact embossing to the laminated continuous sheet laminated in the re-overlap part,
Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper products or a multiple of the width,
Winding means for winding each slit continuous laminated sheet on the same axis to form a secondary raw roll having a product width of tissue paper products or a multiple of the width of the tissue paper product, and in this order in the sheet flow direction Use;
A large number of secondary raw rolls to which a chemical solution is applied, obtained by the ply machine, are set corresponding to the folding mechanism part of the multi-stand type interfolder. Each of the secondary continuous sheets from the anti-roll is fed into the folding mechanism part, the secondary continuous sheet is folded to obtain a laminated band stacked while crossing the side edges of each secondary continuous sheet,
Thereafter, the tissue paper bundle is cut by cutting at a predetermined interval in the flow direction, and the tissue paper bundle is stored in a storage box to obtain a tissue paper product.
The manufacturing method of the tissue paper product to which the chemical | medical solution was provided characterized by the above-mentioned. A method for producing tissue paper products to which a chemical solution is applied,
As a ply machine for producing secondary rolls for tissue paper products continuously from primary rolls made and wound by papermaking equipment;
A stacking unit that stacks a primary continuous sheet fed from a plurality of primary rolls along the continuous direction to form a stacked continuous sheet;
A chemical solution applying means for applying a chemical solution to the laminated continuous sheet;
An embossing means for embossing the laminated continuous sheet;
Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper products or a multiple of the width,
Winding means for winding each slit continuous laminated sheet on the same axis to form a secondary raw roll having a product width of tissue paper products or a multiple of the width of the tissue paper product, and in this order in the sheet flow direction Use;
A large number of secondary raw rolls to which a chemical solution is applied, obtained by the ply machine, are set corresponding to the folding mechanism part of the multi-stand type interfolder. Each of the secondary continuous sheets from the anti-roll is fed into the folding mechanism part, the secondary continuous sheet is folded to obtain a laminated band stacked while crossing the side edges of each secondary continuous sheet,
Thereafter, the tissue paper bundle is cut by cutting at a predetermined interval in the flow direction, and the tissue paper bundle is stored in a storage box to obtain a tissue paper product.
The manufacturing method of the tissue paper product to which the chemical | medical solution was provided characterized by the above-mentioned. A method for producing tissue paper products to which a chemical solution is applied,
As a ply machine for producing secondary rolls for tissue paper products continuously from primary rolls made and wound by papermaking equipment;
A stacking unit that stacks a primary continuous sheet fed from a plurality of primary rolls along the continuous direction to form a stacked continuous sheet;
An embossing means for embossing the laminated continuous sheet;
A chemical solution applying means for applying a chemical solution to the laminated continuous sheet;
Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper products or a multiple of the width,
Winding means for winding each slit continuous laminated sheet on the same axis to form a secondary raw roll having a product width of tissue paper products or a multiple of the width of the tissue paper product, and in this order in the sheet flow direction Use;
A large number of secondary raw rolls to which a chemical solution is applied, obtained by the ply machine, are set corresponding to the folding mechanism part of the multi-stand type interfolder. Each of the secondary continuous sheets from the anti-roll is fed into the folding mechanism part, the secondary continuous sheet is folded to obtain a laminated band stacked while crossing the side edges of each secondary continuous sheet,
Thereafter, the tissue paper bundle is cut by cutting at a predetermined interval in the flow direction, and the tissue paper bundle is stored in a storage box to obtain a tissue paper product.
The manufacturing method of the tissue paper product to which the chemical | medical solution was provided characterized by the above-mentioned. A method for producing tissue paper products to which a chemical solution is applied,
As a ply machine for producing secondary rolls for tissue paper products continuously from primary rolls made and wound by papermaking equipment;
A stacking unit that stacks a primary continuous sheet fed from a plurality of primary rolls along the continuous direction to form a stacked continuous sheet;
A ply peeling part where the laminated continuous sheet is separated into each continuous sheet;
An embossing means for embossing the continuous sheet separated at the ply peeling part;
A re-overlapping unit that laminates the continuous sheets separated by the ply peeling unit along the continuous direction to form a laminated continuous sheet;
A chemical solution applying means for applying a chemical solution to the laminated continuous sheet laminated in the re-overlap part,
Contact embossing means for applying contact embossing to the laminated continuous sheet laminated in the re-overlap part,
Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper products or a multiple of the width,
Winding means for winding each slit continuous laminated sheet on the same axis to form a secondary raw roll having a product width of tissue paper products or a multiple of the width of the tissue paper product, and in this order in the sheet flow direction Use;
A large number of secondary raw rolls to which a chemical solution is applied, obtained by the ply machine, are set corresponding to the folding mechanism part of the multi-stand type interfolder. Each of the secondary continuous sheets from the anti-roll is fed into the folding mechanism part, the secondary continuous sheet is folded to obtain a laminated band stacked while crossing the side edges of each secondary continuous sheet,
Thereafter, the tissue paper bundle is cut by cutting at a predetermined interval in the flow direction, and the tissue paper bundle is stored in a storage box to obtain a tissue paper product.
The manufacturing method of the tissue paper product to which the chemical | medical solution was provided characterized by the above-mentioned. A method for producing tissue paper products to which a chemical solution is applied,
As a ply machine for producing secondary rolls for tissue paper products continuously from primary rolls made and wound by papermaking equipment;
A stacking unit that stacks a primary continuous sheet fed from a plurality of primary rolls along the continuous direction to form a stacked continuous sheet;
A ply peeling part where the laminated continuous sheet is separated into each continuous sheet;
An embossing means for embossing the continuous sheet separated at the ply peeling part;
A chemical solution applying means for applying a chemical solution to the continuous sheet separated at the ply peeling portion;
A re-overlapping unit that laminates the continuous sheets separated by the ply peeling unit along the continuous direction to form a laminated continuous sheet;
Contact embossing means for applying contact embossing to the laminated continuous sheet laminated in the re-overlap part,
Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper products or a multiple of the width,
Winding means for winding each slit continuous laminated sheet on the same axis to form a secondary raw roll having a product width of tissue paper products or a multiple of the width of the tissue paper product, and in this order in the sheet flow direction Use;
A large number of secondary raw rolls to which a chemical solution is applied, obtained by the ply machine, are set corresponding to the folding mechanism part of the multi-stand type interfolder. Each of the secondary continuous sheets from the anti-roll is fed into the folding mechanism part, the secondary continuous sheet is folded to obtain a laminated band stacked while crossing the side edges of each secondary continuous sheet,
Thereafter, the tissue paper bundle is cut by cutting at a predetermined interval in the flow direction, and the tissue paper bundle is stored in a storage box to obtain a tissue paper product.
The manufacturing method of the tissue paper product to which the chemical | medical solution was provided characterized by the above-mentioned. A method for producing tissue paper products to which a chemical solution is applied,
As a ply machine for producing secondary rolls for tissue paper products continuously from primary rolls made and wound by papermaking equipment;
A stacking unit that stacks a primary continuous sheet fed from a plurality of primary rolls along the continuous direction to form a stacked continuous sheet;
A ply peeling part where the laminated continuous sheet is separated into each continuous sheet;
Embossing and chemical solution applying means for applying embossing to the continuous sheet separated at the ply peeling part and applying the chemical solution,
A re-overlapping unit that laminates the continuous sheets separated by the ply peeling unit along the continuous direction to form a laminated continuous sheet;
Contact embossing means for applying contact embossing to the laminated continuous sheet laminated in the re-overlap part,
Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper products or a multiple of the width,
Winding means for winding each slit continuous laminated sheet on the same axis to form a secondary raw roll having a product width of tissue paper products or a multiple of the width of the tissue paper product, and in this order in the sheet flow direction Use;
A large number of secondary raw rolls to which a chemical solution is applied, obtained by the ply machine, are set corresponding to the folding mechanism part of the multi-stand type interfolder. Each of the secondary continuous sheets from the anti-roll is fed into the folding mechanism part, the secondary continuous sheet is folded to obtain a laminated band stacked while crossing the side edges of each secondary continuous sheet,
Thereafter, the tissue paper bundle is cut by cutting at a predetermined interval in the flow direction, and the tissue paper bundle is stored in a storage box to obtain a tissue paper product.
The manufacturing method of the tissue paper product to which the chemical | medical solution was provided characterized by the above-mentioned. A method for producing tissue paper products to which a chemical solution is applied,
As a ply machine for producing secondary rolls for tissue paper products continuously from primary rolls made and wound by papermaking equipment;
A chemical solution applying means for applying a chemical solution to the primary continuous sheet fed from a plurality of primary raw rolls, and an embossing means for applying embossing;
The superposition part which laminates the continuous sheet along the continuous direction in the latter stage of the chemical solution application means and the emboss application means to form a continuous laminate sheet;
Contact embossing means for applying contact embossing to the laminated continuous sheet laminated at the overlapping portion;
Slitting means for slitting the laminated continuous sheet to which contact embossing has been applied so as to be a product width of tissue paper products or a multiple of the product width;
Winding means for winding each slit continuous laminated sheet on the same axis to form a secondary raw roll having a product width of tissue paper products or a multiple of the width of the tissue paper product, and in this order in the sheet flow direction Use;
A large number of secondary raw rolls to which a chemical solution is applied, obtained by the ply machine, are set corresponding to the folding mechanism part of the multi-stand type interfolder. Each of the secondary continuous sheets from the anti-roll is fed into the folding mechanism part, the secondary continuous sheet is folded to obtain a laminated band stacked while crossing the side edges of each secondary continuous sheet,
Thereafter, the tissue paper bundle is cut by cutting at a predetermined interval in the flow direction, and the tissue paper bundle is stored in a storage box to obtain a tissue paper product.
The manufacturing method of the tissue paper product to which the chemical | medical solution was provided characterized by the above-mentioned.   A tissue paper product manufactured by the method for manufacturing a tissue paper product to which the chemical solution according to any one of claims 1 to 9 is applied.

Images