JP2013188380A - Method for producing tissue product and tissue product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively produce a tissue product to which a sizing agent is imparted.SOLUTION: A tissue product is obtained by forming a first material roll produced by papermaking facilities as a second material roll to which a sizing agent is applied by a ply machine, obtaining a folding stack of tissues by a multi-stand type inter folder using the second material roll, and storing the stack of tissues in a storage box.

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.

  In general, tissue paper boxing products are obtained by stacking a plurality of continuous tissue papers by folding them with an interfolder (folding equipment) and cutting them into a predetermined length to obtain a tissue paper bundle. Is stored 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.

  On the other hand, in tissue paper products, the demand for chemicals such as moisturizers and softeners is increasing. For example, various manufacturing methods and facilities disclosed in Patent Documents 5 to 7 below have been proposed. Yes. Such tissue paper products are generally manufactured by a rotary interfolder (for example, Patent Document 5 below). However, the rotary type interfolder has a disadvantage that productivity is low because folding and cutting are simultaneously performed in a direction perpendicular to the processing direction.

  By the way, viral infections such as influenza and viruses and pathogenic bacteria that cause infectious diseases are remarkably mutated and their epidemic time and infectivity change. Therefore, daily infection prevention is important.

  Since such viruses and pathogens are transmitted through body fluids such as runny nose and saliva of infected persons, hand washing, gargling, and wearing a mask are well known as means for preventing infection, so that they do not come into contact with viruses. It is common to make it.

  However, even when such non-infected persons take preventive measures, when infected persons blow their noses or wipe their mouths, the runny nose etc. quickly penetrates into tissue paper and adheres to the hands of infected persons. As a starting point, viruses can spread and cause epidemics of infectious diseases.

  Against this background, there is a demand for tissue paper that is less permeable to moisture and less likely to have a runny nose on the hand when used, and such products are also available on the market.

  Conventionally, the products in which the runny nose is difficult to adhere to the hand are roughly divided into two types. One of the manufacturing methods is to manufacture a raw roll in which several layers of a primary raw sheet manufactured in a papermaking facility are laminated, and transfer the raw roll to a separate off-machine coater, where a continuous sheet is transferred from the raw roll. After winding and coating one side with a water repellent or other chemical that suppresses moisture penetration, it is wound up again to produce a water repellent-supplied raw roll, which is transferred to a rotary interfolder and repelled. Folding while stacking with other primary raw sheets so that the liquid agent application surface becomes the middle layer (laminated inner surface), making it a multi-ply product with three or more layers (three plies or three layers) or more. Requires a simple manufacturing method. For this reason, the productivity is extremely low and the product is expensive. In addition, when an oily component such as silicones or paraffin is applied as a water repellent with an off-machine coater, the water repellent penetrates into other sheets and interferes with the water absorption of the tissue paper surface. For this reason, there is a problem that it becomes difficult to handle the processed raw material.

  On the other hand, as a technique for slowing the moisture permeability of tissue paper, it is known to add size to the entire paper layer by making a paper with a sizing agent in the papermaking raw material.

  However, this conventional technology has a very poor yield because the sizing agent flows out in the dehydration process, and the sizing agent affects the releasability from the Yankee dryer. The size effect cannot be adjusted, and a sufficient size effect that matches the penetration preventing property cannot be obtained.

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 JP 2006-068296 A JP-T-2002-519533

  Therefore, the present inventors first used a multi-stand type interfolder having a high productivity as compared with a rotary type interfolder for tissue paper products to which such a sizing agent was added as an external addition of a sizing agent. We thought about manufacturing with a manufacturing method.

  However, when manufacturing by a manufacturing method using a multi-stand type interfolder, if a sizing agent providing facility is provided separately from the ply machine or the multi-stand type interfolder, it takes time and labor for transferring the raw roll. On the other hand, production efficiency decreases.

  When the sizing agent application facility is installed in a multi-stand type interfolder, it is necessary to separate the line for manufacturing tissue paper products to which sizing agent is applied and the line for manufacturing tissue paper products to which sizing agent is not applied. Problems such as being unrealistic in a multi-stand type inner folder that requires a larger installation area than a folder were confirmed.

  Therefore, the main problem of the present invention is to improve the size effect of conventional general-purpose tissue paper, and to manufacture such tissue paper products at low cost and with high productivity using a multi-stand type interfolder. It is in providing the manufacturing method of tissue paper. Furthermore, it is providing the manufacturing method of the tissue paper product which is easy to design a sizing agent provision part freely.

Means for solving the above problems and their effects are as follows.
[Invention of Claim 1]
A method for producing a two-ply or three-ply tissue paper product to which a sizing agent is applied,
As a ply machine for producing secondary rolls for tissue paper products continuously from primary rolls made and wound by papermaking equipment;
Sizing agent applying means for applying a sizing agent to the primary continuous sheet fed from the primary raw roll,
Laminating means for laminating a primary continuous sheet along a continuous direction to form a laminated continuous sheet;
Contact embossing means for applying contact embossing 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 laminated continuous sheet coaxially to form a plurality of secondary rolls having a product width of tissue paper or multiple times the width thereof;
Are used in this order in the sheet flow direction, and each primary continuous sheet fed from the primary raw roll is supplied to the sizing agent applying means without being laminated;
A large number of secondary rolls each provided with a sizing agent obtained by the ply machine are set in correspondence with the folding mechanism of the multi-stand type interfolder. Each of the secondary continuous sheets from the raw roll is sent to the folding mechanism part, and the secondary continuous sheet is folded to obtain a laminated band stacked while crossing the side end portions 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.
A method for producing a tissue paper product provided with a sizing agent.

[Invention of Claim 2]
A method for producing a two-ply tissue paper product to which a sizing agent 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 sizing agent applying means for applying a sizing agent;
Laminating means for laminating a plurality of continuous sheets along the continuous direction to form a laminated continuous sheet;
Contact embossing means for applying contact embossing to the laminated continuous sheet;
Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper or a multiple of the width,
Winding means for winding each slit laminated continuous sheet coaxially to form a secondary raw roll of product width of tissue paper or a multiple of the width,
Is incorporated in the sheet flow direction,
And using a transport path that is supplied to the stacking means via the sizing agent applying means and a transport path that is supplied to the stacking means without passing through the sizing agent applying means;
A primary continuous sheet is fed out from each of two primary raw rolls, one of the primary continuous sheets is supplied to the laminating means via the sizing agent applying means, and the other primary continuous sheet is not passed through the sizing agent applying means. To the laminating means, the continuous sheet to which the sizing agent passed through the sizing agent applying means in the laminating means and the continuous sheet not passing through the sizing agent applying means are laminated and integrated,
A large number of secondary raw rolls to which a sizing agent is applied, obtained by the ply machine, are set corresponding to the folding mechanism part of the multi-stand type interfolder. Sending the secondary continuous sheet from the anti-roll to the folding mechanism part, folding the secondary continuous sheet and obtaining the laminated band stacked while crossing the side edge 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.
A method for producing a tissue paper product provided with a sizing agent.

[Invention of Claim 3]
A method for producing a three-ply tissue paper product to which a sizing agent 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 sizing agent applying means for applying a sizing agent;
Laminating means for laminating a plurality of continuous sheets along the continuous direction to form a laminated continuous sheet;
Contact embossing means for applying contact embossing to the laminated continuous sheet;
Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper or a multiple of the width,
Winding means for winding each slit laminated continuous sheet coaxially to form a secondary raw roll of product width of tissue paper or a multiple of the width,
Is incorporated in the sheet flow direction,
A conveying path that is supplied to the laminating means via the sizing agent applying means, and a conveying path that is supplied to the laminating means without passing through the sizing agent applying means, and from a primary material roll A continuous sheet of a different route fed to the laminating means;
The primary continuous sheet is fed out from each of the three primary raw rolls and supplied to the laminating means by different paths, and one or two of the primary continuous sheets are supplied to the laminating means via the sizing agent applying means, The continuous sheet to which the sizing agent has been applied via the sizing agent applying means and the continuous sheet that does not pass through the sizing agent applying means are laminated and integrated in the laminating means,
A large number of secondary raw rolls to which a sizing agent is applied, obtained by the ply machine, are set corresponding to the folding mechanism part of the multi-stand type interfolder. Sending the secondary continuous sheet from the anti-roll to the folding mechanism part, folding the secondary continuous sheet and obtaining the laminated band stacked while crossing the side edge 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.
A method for producing a tissue paper product provided with a sizing agent.

[Invention of Claim 4]
A method for producing a three-ply tissue paper product to which a sizing agent 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 first laminating means for laminating a plurality of continuous sheets along the continuous direction to form a laminated continuous sheet;
A sizing agent applying means for applying a sizing agent;
A second laminating means for laminating a plurality of continuous sheets along the continuous direction to form a laminated continuous sheet;
Contact embossing means for applying contact embossing to the laminated continuous sheet;
Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper or a multiple of the width,
Winding means for winding each slit laminated continuous sheet coaxially to form a secondary paper roll having a product width of tissue paper or a multiple of the width is incorporated in the sheet flow direction,
And a transport path supplied to the second stacking means via the first stacking means and the sizing agent applying means, and a supply path to the second stacking means without passing through the first stacking means and the sizing agent applying means. Having a transport path to be used;
The primary continuous sheet is fed out from each of the three primary raw rolls, and two primary continuous sheets are supplied to the second laminating means via the first laminating means and the sizing agent applying means, and one primary continuous sheet is supplied. A continuous sheet supplied to the second laminating means without passing through the first laminating means and the sizing agent applying means, and a continuous sheet to which the sizing agent is applied via the first laminating means and the sizing agent applying means in the second laminating means; The continuous sheet that does not go through the sizing agent application means is laminated to form a continuous sheet,
A large number of secondary raw rolls to which a sizing agent is applied, obtained by the ply machine, are set corresponding to the folding mechanism part of the multi-stand type interfolder. Sending the secondary continuous sheet from the anti-roll to the folding mechanism part, folding the secondary continuous sheet and obtaining the laminated band stacked while crossing the side edge 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.
A method for producing a tissue paper product provided with a sizing agent.

[Invention of Claim 5]
A method for producing a three-ply tissue paper product to which a sizing agent 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 first laminating means for laminating a plurality of continuous sheets along the continuous direction to form a laminated continuous sheet;
A sizing agent applying means for applying a sizing agent;
A second laminating means for laminating a plurality of continuous sheets along the continuous direction to form a laminated continuous sheet;
Contact embossing means for applying contact embossing to the laminated continuous sheet;
Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper or a multiple of the width,
Winding means for winding each slit laminated continuous sheet coaxially to form a secondary raw roll of product width of tissue paper or a multiple of the width,
Is incorporated in the sheet flow direction,
And a transport path that is supplied to the second stacking means via the sizing agent applying means without passing through the first stacking means, and the first route without passing through the sizing agent applying means via the first stacking means. 2 having a conveyance path supplied to the stacking means;
A primary continuous sheet is fed out from each of the three primary rolls, and two primary continuous sheets are supplied to the second laminating means via the first laminating means and not via the sizing agent applying means, and one primary continuous sheet is supplied. The sheet is supplied to the second laminating means via the sizing agent applying means without going through the first laminating means, and the sizing agent does not pass through the first laminating means and passes through the first laminating means in the second laminating means. And a continuous sheet laminated with a continuous sheet provided with a sizing agent via a sizing agent application means without passing through a first lamination means,
A large number of secondary raw rolls to which a sizing agent is applied, obtained by the ply machine, are set corresponding to the folding mechanism part of the multi-stand type interfolder. Sending the secondary continuous sheet from the anti-roll to the folding mechanism part, folding the secondary continuous sheet and obtaining the laminated band stacked while crossing the side edge 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.
A method for producing a tissue paper product provided with a sizing agent.

[Invention of Claim 6]
The method for producing a tissue paper product to which a sizing agent is applied according to any one of claims 1 to 5, wherein the sizing agent applying means applies a sizing agent to a position to be a laminated inner surface.

[Invention of Claim 7]
The manufacturing method of the tissue paper product to which the sizing agent of any one of Claims 1-6 which makes the provision amount of a sizing agent 0.05-10.0 g / m < ² >.

[Invention of Claim 8]
The tissue paper product to which the sizing agent according to any one of claims 1 to 7 is added, wherein a cationic wet paper strength enhancer is internally added to the primary continuous sheet, and the sizing agent is an anionic sizing agent. Manufacturing method.

[Invention of Claim 9]
The manufacturing method of the tissue paper product to which the sizing agent of any one of Claims 1-8 which provides a nonionic surfactant with a sizing agent in a sizing agent provision means.

[Invention of Claim 10]
The method for producing a tissue paper product provided with the sizing agent according to any one of claims 1 to 9, wherein the sizing agent applying means is a flexographic printing machine.

[Invention of Claim 11]
A tissue paper product manufactured by the method for manufacturing a tissue paper product to which the sizing agent according to any one of claims 1 to 10 is applied.

  In this invention, the secondary original fabric roll which wound up the lamination | stacking continuous sheet to which the size agent was provided in the manufacturing apparatus (ply machine) of the secondary original fabric roll for tissue paper products is manufactured.

  For this reason, compared with the case where a sizing agent providing means is provided separately from the interfolder and the ply machine, the equipment cost can be kept low. Moreover, when manufacturing the tissue paper product which does not provide a sizing agent, since it is not necessary to make a sizing agent providing means function in the manufacturing means of the secondary raw material roll for tissue paper products, it can switch manufacture easily.

  Moreover, since it decided to manufacture using a multi stand type inter folder, it becomes very high productivity.

  On the other hand, in the present invention, in the ply machine, since the sizing agent is externally added to the primary continuous sheet, it affects the peelability with a Yankee dryer as compared with the conventional method of internally adding the sizing agent to the papermaking raw material. The sizing agent content can be increased, and the yield can be improved. Furthermore, there is no fear that the rollers of the papermaking equipment and the papermaking net will become dirty.

  In the present invention, since the sizing agent is externally added to the continuous sheet as described above, the sizing agent is fixed on the surface of the pulp fiber in the surface layer portion of the primary continuous sheet. This is because the sizing agent has a hydrophilic group and a hydrophobic group, and when applied in the embodiment of the present invention, the hydrophilic group adheres to the pulp fiber (cellulose) and the hydrophobic group is oriented outward. Because. For this reason, in the present invention, a moisture permeation suppression site such as a runny nose is formed especially on the surface of the sizing agent application surface, and the opposite surface does not have such a suppression function, and the hydrophilicity of the pulp fibers inside the paper layer is maintained. Therefore, absorption speed and water retention are ensured. In particular, since there is a space on the inner surface of the laminate as two or more plies, the water retention is sufficiently ensured by maintaining the hydrophilic surface of the fiber on the non-sizing surface of each ply.

  In addition, by adding externally, it becomes possible to adjust the type of sizing agent to be applied, the amount to be applied, and the degree of penetration of the sizing agent, and it is suitable for tissue paper, especially nasal mucus with various viscosities depending on the physical condition and people. The application amount and the sizing agent type according to the present invention can be widely used. In particular, the low-viscosity nasal mucus that is common during cold is moderately suppressed from penetrating into the interior.

  Further, when the flexographic printing method is adopted as the sizing agent providing means, it is possible to sufficiently cope with the high-speed processing of the ply machine, and the productivity can be suitably increased. In addition, the sizing agent is transferred from the resin-based printing plate to the continuous sheet surface, and the degree of penetration into the continuous sheet is adjusted by the sizing agent type, application amount, chemical viscosity at the time of application, surface tension, etc. And the sizing agent can be effectively positioned particularly on the surface layer of the application surface.

  On the other hand, application of a sizing agent to an appropriate surface layer has the effect of reducing the surface energy of the application surface and reducing friction. That is, there is an effect of smoothing the tissue paper. Therefore, in the present invention, the smoothness of the tissue paper is also improved.

  This effect is also an effect that is markedly improved in the manufacturing method of the present invention. That is, in the present invention, the secondary continuous sheet provided with the sizing agent is folded by a multi-stand type interfolder. In the multi-stand type interfolder, pulling on the pull conveyor and compression in the thickness direction are performed, and the secondary continuous sheet is conveyed while being slid against the folded plate while being stretched. Then, along with the conveyance of the secondary continuous sheet peculiar to such a multi-stand type interfolder, the surface of the secondary continuous sheet is smoothed with a microscopic sizing agent surface located in a solid state, and the smoothness of the surface is improved.

  As described above, in the present invention, tissue paper provided with a sizing agent can be produced, and can be produced with particularly high productivity. Moreover, according to this invention, quality, such as smoothness of tissue paper, improves.

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 a 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 cross section of the lamination | stacking continuous sheet after sizing provision concerning 1st Embodiment. It is the schematic which shows the cross section of the other lamination | stacking continuous sheet after sizing provision concerning 1st Embodiment. It is the schematic which shows the cross section of another lamination | stacking continuous sheet after sizing provision concerning 1st Embodiment. It is the schematic which shows the cross section of another lamination continuous sheet after sizing provision concerning 1st Embodiment. It is the schematic which shows the example of a manufacturing method of the secondary original fabric roll in the ply machine concerning 2nd Embodiment. It is the schematic which shows the cross section of the lamination | stacking continuous sheet after sizing provision concerning 2nd Embodiment. It is the schematic which shows the cross section of the other lamination | stacking continuous sheet after sizing provision concerning 2nd Embodiment. It is the schematic which shows the cross section of another lamination | stacking continuous sheet after sizing provision concerning 2nd Embodiment. It is the schematic which shows the cross section of another lamination continuous sheet after sizing provision concerning 2nd Embodiment. It is the schematic which shows the 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 the manufacturing method of the secondary film roll in the ply machine concerning 4th 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 a figure which shows the measuring method of the MMD value of tissue paper.

  Next, embodiments of the present invention will be described below. 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 by the papermaking equipment example X1 shown in FIG.

  First, an appropriate chemical is added to the pulp slurry from the head box, 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 dry crepe. Let it be dry base paper S1 (primary continuous sheet described later) (drying step). Here, a soft creped paper suitable for tissue paper is obtained by using a dry crepe instead of a wet crepe in which creping is performed in a wet paper state.

  Then, the creped 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 axis side of the primary raw roll JR (so that it becomes the winding inner surface). ) To make a 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. Therefore, in consideration of this, the primary continuous sheet S1 is specifically based on the basis weight according to JIS P 8124. but, 10~30g / m ^2, preferably 11~25g / m ^2, more preferably from 12~20g / m ^2. 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. Furthermore, it becomes difficult to effectively prevent a runny nose from falling behind. On the other hand, if the basis weight exceeds 30 g / m ² , the tissue paper becomes too hard and the touch is deteriorated. The feeling of use becomes worse, especially when a runny nose is bitten.

  The paper thickness (measured with a dial thickness gauge manufactured by Ozaki Seisakusho) is 50 to 200 μm, preferably 60 to 140 μm, more preferably 130 to 180 μm.

  In the tissue paper according to the present invention, it is desirable that the paper thickness at the time of product is 120 to 400 μm, particularly 150 to 350 μm, and it is particularly desirable to achieve this by 2 to 3 plies. When the paper thickness of the primary continuous sheet S1 is used, the thickness can be set to the range when the tissue paper is manufactured. And if the paper thickness at the time of product is less than 120 μm, it will be difficult to achieve sufficient paper strength and the ability to prevent the runny nose from slipping through. If it exceeds 400 μm, it will feel stiff especially when biting a runny nose. And the feeling of use deteriorates.

The primary continuous sheet S1 has a crepe rate of 8 to 30%, preferably 10 to 22%. When the crepe rate is less than 8%, the tissue paper is easy to break at the time of subsequent processing and has little stretch and is not stiff. 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 papermaking) − (reel peripheral speed of the reel device in the winding means)} / (peripheral speed of the dryer during papermaking) × 100.

  Further, the primary continuous sheet S1 has a dry tensile strength (hereinafter also referred to as dry paper strength) defined in JIS P 8113 having a longitudinal direction of 2 to 100 to 700 cN / 25 mm, preferably 200 to 600 cN / 25 mm. Preferably, the lateral direction is 50 to 300 cN / 25 mm with 2 plies, preferably 70 to 270 cN / 25 mm, particularly preferably 100 to 200 cN / 25 mm. 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 methods such as changing the mixing ratio as appropriate 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.

  Here, in the tissue paper according to the present invention, the wet paper strength enhancer is preferably added internally because it is used for wiping body fluids such as a nose. As the wet paper strength enhancer, a cationic one such as polyamide polyamine epoxyhydrin resin is preferably used. In this case, the addition amount of the wet paper strength enhancer is desirably 5.0 to 20.0 kg / pulp t with respect to the pulp slurry. Furthermore, in consideration of the binding with an anionic or cationic amphoteric sizing agent described later, it is more preferable to set 7.0 to 18.0 kg / pulp t. More preferably, it is 9.0-15.0 kg / pulp t. In addition, if it is less than 5.0 kg / pulp t, the wet paper strength required for the tissue cannot be obtained, and at the same time, the fixing of the sizing agent is delayed and the effect of the sizing agent is not sufficiently exhibited. If the amount exceeds 20.0 kg / pulp t, a strong cationic wet paper strength enhancer collects fine fibers in the papermaking raw material, hardens the paper quality of the tissue, or anionic substances in the system including white water. There is a possibility of trapping and causing agglomerates to mix foreign matter into the sheet.

  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 tissue paper can be selected and used. Preferably, the raw material pulp is a blend of NBKP and LBKP. Moreover, although waste paper pulp may be mix | blended, the texture of the tissue paper obtained will deteriorate. Therefore, it is good to be comprised only from NBKP and LBKP of virgin pulp. As a blending ratio in that case, NBKP: LBKP = 25: 75 to 40:60 is desirable. Within this range, the balance between paper strength and softness will be excellent.

  Examples of chemicals to be added to the paper stock include the above-mentioned dry paper strength enhancer, wet paper strength enhancer, release agent, adhesive, pH adjuster, adhesive, defoaming agent, antiseptic, slime control agent, dye, 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, a secondary web roll R to which a sizing agent has been applied is produced by a ply machine X2 from a primary web roll JR produced by the papermaking equipment X1.

  In the first embodiment, as the ply machine X2, the sizing agent providing means 52, the laminating means 53, the contact embossing providing means 54, the slit means 55, and the winding means 56 are incorporated in this order, and the primary raw rolls JR, JR The secondary web roll R is manufactured using what is supplied to the sizing agent applying means 52 without laminating the primary continuous sheet fed out from the above.

Hereafter, each means and the process in each part are further explained in full detail.
(Sizing agent application process)
In the first embodiment, two primary web rolls JR and JR are set on the ply machine X2, and the primary continuous sheets (S11 and S12 in the illustrated example) fed from the primary web rolls JR and JR are stacked. Without being directed to the sizing agent applying means 52, the sizing agent is applied to the primary continuous sheet.

  The sizing agent applying means 52 can be composed of one or a plurality of sizing agent applying devices. In the illustrated example, two doctor chamber-type flexographic printing presses 52A and 52B are installed as sizing agent application devices in the middle of the conveying paths of the primary continuous sheets S11 and S12, and the primary continuous sheets S11 and S12 are provided on one side. A sizing agent is applied.

  However, the first embodiment is not limited to this, and the sizing agent application devices 52A and 52B are added with the sizing agent application devices 52A ′ and 52B ′ shown by the dotted lines in FIG. You may give to both sides.

  In addition, the sizing agent applying devices 52A and 52B in the illustrated example are modes in which the sizing agent is applied to the position that becomes the inner surface when the primary continuous sheets S11 and S12 are laminated by the laminating means 53 in the subsequent stage. As the sizing agent applying devices 52A ′ and 52B ′ indicated by the dotted lines in FIG. 2 instead of the agent applying devices 52A and 52B, when the primary continuous sheets S11 and S12 are stacked by the subsequent stacking means 53, You may give a sizing agent to the position which becomes.

  In 1st Embodiment, it is not limited to the example of illustration, It does not specifically limit about which surface a sizing agent is provided to all the primary continuous sheets S11 and S12, or on which surface.

  In order to prevent the sizing agent from being applied to one of the primary continuous sheets S11 or S12, for example, the apparatus of the sizing agent applying device 52A, 52B (52A ′, 52B ′) of one primary continuous sheet S11 or S12 is used. It is only necessary to stop and pass the paper without giving the size. Of course, the sizing agent applying device may not be provided only in the conveying path of one primary continuous sheet S11 or S12.

  In the first embodiment, by providing the laminating unit 53 at the subsequent stage of the sizing agent providing unit 52, the degree of freedom in designing the paper run from the primary raw rolls JR, JR to the sizing agent providing unit 52 is high. Further, the degree of freedom of installation of the sizing agent applying devices 52A constituting the sizing agent applying means 52 is high. As a result, for example, each primary continuous sheet S11, S12 is subjected to various selections such as applying a sizing agent with an appropriate sizing agent applying device or making a paper passing state without applying a sizing agent. It becomes possible to manufacture the secondary continuous sheet S2 having a sizing agent application pattern. That is, it is possible to increase the degree of freedom in designing the tissue paper provided with the sizing agent. Of course, if the sizing agent is not applied to all of the sizing agent applying devices 52A, and a simple sheet passing state is provided, the secondary raw roll R without applying the sizing agent can be manufactured.

  In addition, in the apparatus and method according to the first embodiment, for example, by appropriately arranging and starting the sizing agent application device, for example, a laminated continuous sheet in which the sizing agent is located on both outer surfaces of the sizing shown in FIG. The portion located is indicated by Sr. The same applies to the other figures), the laminated continuous sheet in which the sizing agent is located on both laminated inner surfaces shown in FIG. 14, the laminated continuous sheet in which the sizing agent is located on one inner surface shown in FIG. A laminated continuous sheet in the form of a laminated continuous sheet having a sizing agent located on one outer surface is produced. In the case where the sizing agent is applied to the inner surface of the laminate shown in FIGS. 14 and 15, the tissue paper has no sizing agent on the front and back surfaces, and liquid such as runny nose is rapidly absorbed and diffused on the tissue paper surface, and the liquid absorption speed is high. It becomes. Moreover, in the case where a sizing agent is applied to the outer surface of the laminate as shown in FIG. 13 and FIG.

  In the first embodiment, since the primary continuous sheets in a dry state are not stacked, sliding between the primary continuous sheets is prevented, so that generation of paper dust is small. This also has the effect of preventing paper dust contamination of the sizing agent applying means.

  Of course, in any sizing agent application mode, the effect of improving the productivity of tissue paper to which the sizing agent is applied and which has a high anti-back-through property can be obtained.

  Here, when installing the sizing agent applying device on both surfaces of one primary continuous sheet S11 (S12), each device may be arranged in parallel in the horizontal direction, the vertical direction, or the diagonal direction. You may arrange | position combining these installation directions included. 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.

  On the other hand, the sizing agent application according to the present invention is preferably performed using the above-mentioned doctor chamber type flexographic printing machine, but flexographic printing, gravure printing, spray coating, and inkjet printing can also be employed. However, flexographic printing and ink jet printing are suitable for the reason that the application amount can be easily adjusted and that the sizing agent can be suitably applied to the mode of positioning on the paper surface. Flexo printing is suitable from the standpoint of high-speed processing of the ply machine X2 and prevention of chemical solution scattering. Spray coating that is a non-contact type application form that directly applies sizing solution to the paper surface without using the printing plate roll or the like in that the printing plate roll or the like is not brought into contact with the paper surface. Inkjet printing is suitable. However, spray coating is difficult to apply uniformly with chemicals and adjusting the coating amount compared to a roll transfer type applying means such as flexographic printing and an ink jet type, and is inferior in terms of high-speed compatibility. Accordingly, in the present invention, flexographic printing is most desirable overall, and ink jet printing is then suitable.

(About sizing agent)
On the other hand, the sizing agent according to the present invention preferably exhibits an effect in a neutral region. Examples of particularly suitable sizing agents are alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), neutral rosin sizing agent, styrenic sizing agent, acrylic sizing agent, and olefin sizing agent. These sizing agents have excellent fixability to pulp fibers and stable sizing properties. After application to paper, they fix to pulp fibers and develop a size effect over time, preventing the penetration of water such as runny nose. Develops and stabilizes especially after commercialization.

  In addition, sizing agents are roughly classified into four types: cationic, anionic, amphoteric and nonionic, but are not particularly limited in the present invention. When a dry base paper (S1) is made in the paper making process, when a cationic wet paper strength agent is used, if the sizing agent is anionic, it reacts with the cationic wet paper strength agent in the paper. This increases the fixing rate of paper. It should be noted that the addition of 0.1 to 2.0 kg / pulp t of sulfuric acid band (aluminum) or the like as a fixing aid together with the cationic wet paper strength agent makes it easier for the effect of the anionic sizing agent to appear. .

  In the case of a cationic amphoteric sizing agent, an anionic pulp fiber is bonded to a cation group of the sizing agent, and a cationic wet paper strength agent fixed on the pulp fiber is sized. Since it binds to the anionic group of the agent, the sizing agent is easily fixed.

  In order not to include a cationic substance such as a cationic wet paper strength agent in papermaking in order to develop characteristics such as improving water disintegration, or in the case of using a small amount, a cationic sizing agent is directly bonded to pulp fibers. To produce an effect.

  As the sizing agent in the present invention, those which form an excessive film such as starch solution and polyacrylamide are not desirable. Since the resin adheres to the surface, the sheet becomes hard or has a rough surface, and the quality of tissue paper that is originally required cannot be maintained.

  In the present invention, it is not desirable to use a water repellent such as wax, stearic acid or silicone resin. Although these are agents that suppress moisture penetration, they are not suitable for the present invention because they have high water repellency and suppress water absorption of tissue paper more than necessary.

  On the other hand, in this invention, surfactant can be provided with respect to primary continuous sheet S11, S12 with a sizing agent. When a surfactant is added, a soft paper with a feeling of thickness is obtained. Thus, when providing surfactant, it is desirable that it is a nonionic surfactant especially. The nonionic surfactant, when applied to the primary continuous sheets S11 and S12, has an effect of penetrating into the paper layer and improving the hydrophilicity and water retention of the paper layer inner region, and is a sizing agent that remains in the surface layer region. The combined use enhances the effect of preventing a runny nose from falling through.

  In addition, in providing surfactant with a sizing agent, surfactant can be mix | blended in the size chemical | medical solution containing a sizing agent, and it can provide with respect to primary continuous sheet S11, S12 in the said sizing agent provision means 52. FIG. . In addition, when mixing and apply | coating a sizing agent and surfactant, the combination which does not raise | generate aggregation, a viscosity, etc. is required for each other.

  In the present invention, the sizing agent can be diluted with water at an arbitrary magnification to adjust the viscosity and can be applied. In order to fully develop the size effect of the present invention, in flexographic transfer, the halftone dot area ratio of the flexographic plate is set high and the viscosity of the drug is lowered to uniformly coat the surface of the tissue paper. It is important that substantially no uncovered surface pulp fibers remain.

  In addition, as for the sizing chemical | medical solution provided by the sizing agent provision means 52 (sizing agent provision process), it is desirable for a viscosity to be 1-100 mPa * s at 40 degreeC. More preferably, it is 1-50 mPa * s (40 degreeC). When it is less than 1 mPa · s, the sizing chemical solution is likely to scatter, and when it is greater than 100 mPa · s, it is difficult to control to obtain a stable application amount.

  Moreover, the temperature of the size chemical | medical solution at the time of sizing provision is 30 to 60 degreeC, Preferably it is good to set it as 35 to 55 degreeC.

The application amount of the sizing agent is 0.05 to 10.0 g / m ² , preferably 0.1 to 5.0 g / m ² , more preferably 0.2 to 4.0 g / m ² . If it exceeds 4.0 g / m ² , the possibility of deteriorating the liquid absorbency of absorbing nasal fluid and the like necessary for tissue paper increases. If the amount is less than 0.05 g / m ² , the improvement in the permeation preventing properties such as runny nose due to the sizing agent will not be sufficiently exhibited. In addition, the provision amount said here is the total amount (total amount) of the sizing agent provided to each primary continuous sheet, and is the amount in the laminated sheet.

  In addition, when giving to each primary continuous sheet, or when giving to both surfaces of a primary continuous sheet, the application amount in each application position does not need to be the same. However, in consideration of a difference in transportability of the primary continuous sheet, it is preferable that the difference between the application positions is within 20%.

(Lamination means: Lamination process)
The ply machine X <b> 2 according to the first embodiment includes a stacking unit 53 configured by an appropriate guide roll or a pair of nip rolls after the sizing agent providing unit 52. In the laminating means 53, the primary continuous sheets S11 and S12 are laminated along the continuous direction to form a laminated continuous sheet S2.

  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) are supplied to the laminating means 53.

  The back surface of the primary continuous sheets S11 and S12 may be the surface of the laminated continuous sheet S2, respectively, or the back surface of one of the primary continuous sheets S11 and S12 is the surface of the laminated continuous sheet S2, and the other surface is You may make it become the surface of lamination | stacking continuous sheet S2. However, since the surfaces of the primary raw sheets S11 and S12 are in contact with the surface of the Yankee dryer 57 at the time of drying, the surface of the primary continuous sheet (dried base paper S1) is less smooth and softer than the back surface. It is desirable to laminate so that the surface may constitute the front and back surfaces of the laminated continuous sheet S2.

(Contact embossing process)
The ply machine X2 according to the first embodiment includes the contact embossing means 54, and the laminated continuous sheet S2 to which the sizing agent is applied is supplied to the contact embossing means 54. 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. And with respect to the portion corresponding to the center in the width direction of the product width L1 of the tissue paper in the laminated continuous sheet S2, the laminated continuous sheet S2 is sandwiched between the convex part 54C that exists on each of the left and right 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.

  The continuous continuous sheet S2 is wound up by the subsequent winding means 56 with the surface 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 laminated continuous sheet S2 formed by laminating a plurality of primary continuous sheets (S11, S12) is prevented.

  Further, in the contact embossing step 54, in the illustrated example, a metal and hard roller 54A having a fine convex portion 54C on the surface is used as the roller 54A, but delamination is applied to the secondary continuous sheet S2. For example, a roller having a fine needle-like member on the surface can be used as a roller instead of the roller 54A.

  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.

(Slit process and winding process)
The ply machine X <b> 2 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 S <b> 2 to which a sizing agent is applied and to which contact embossing is applied is supplied to the slit means 55. .

  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 a product width of tissue paper or a plurality thereof. It is slit to double the 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 the slit laminated continuous sheets 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, although not shown, one or more calender parts are provided between the laminating means 53 and the take-up part 56 to calender the laminated continuous sheet S2. it can.

  The type of calendar in the calendar part is not particularly limited, but it is preferably a soft calendar or a chilled calendar for the purpose 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 it can be installed 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.

  By performing the calendar process, the surface of the tissue paper becomes smooth, and the smoothness is improved by itself. In particular, in the present invention, the sizing agent is uniformly applied to the paper surface (surface layer portion), and the smoothness can be further improved.

(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.

  At least the processing speed of 350 m / min or more, usually 700 m / min or more, and preferably 900 m / min or more is an extremely high processing speed.

[Process and storage process in multi-stand type interfolder]
A large number of secondary raw rolls R, R... Manufactured by the ply machine X2 are set in a multi-stand type interfolder, a secondary continuous sheet is drawn out from the set secondary raw roll R, folded and stacked. The tissue paper bundle is manufactured by the above. 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 product width of the tissue paper in the above-described manufacturing equipment and manufacturing method for the secondary paper roll for tissue paper products, and is a multiple of the product width of the tissue paper. In the illustrated example, it is wound and set in double width.

  The continuous belt-like secondary continuous sheets 3A and 3B fed out 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 main folding mechanism unit 20, a pair of continuous secondary continuous sheets 3 </ b> A and 3 </ b> B 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.

  As described above, according to the first embodiment, it is possible to manufacture a secondary raw roll that is wound with a two-layer laminated secondary continuous sheet S2 to which a sizing agent is applied. Therefore, a two-ply tissue paper provided with a sizing agent can be produced at low cost and high productivity.

“Second Embodiment”
Next, a second embodiment of the present invention will be described with particular reference to FIG.
The second embodiment is 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. Hereinafter, differences from the first embodiment will be described.

  In the second embodiment, three-ply tissue paper is manufactured, and three primary rolls are set on the ply machine X2. The ply machine X2 according to the second embodiment also includes a sizing agent providing unit 52, a stacking unit 53, a contact embossing unit 54, a slit unit 55, and a winding unit 56 in this order.

  In the illustrated example, the ply machine X2 is supplied to the sizing agent applying unit 52 without the primary continuous sheets fed from the primary raw rolls JR, JR, JR being stacked. In the illustrated example, sizing agent application devices 52A (52A ′), 52B (52C), and 52C (52C ′) are provided in the middle of the conveyance paths of the primary continuous sheets S11, S12, and S13. A sizing agent is applied to the film, and then laminated by a laminating means to form a laminated continuous sheet S2.

  Here, in the second embodiment as well, the sizing agent is applied to all of the primary continuous sheets S <b> 11, S <b> 12, and S <b> 13 or to which surface it is applied, as in the first embodiment.

  As in the first embodiment, by appropriately selecting whether or not to provide a sizing agent application device in the conveyance path of each primary continuous sheet S11, S12, S13, or in which aspect the application is provided in any aspect. Free design is possible. In order not to apply the sizing agent to the predetermined primary continuous sheet, for example, the sizing agent applying devices 52A, 52B, and 52C (52A ′, 52B ′, and 52C ′) of the predetermined primary continuous sheet S11, S12, or S13. ) May be made to stop the sizing and pass the paper, or the sizing agent applying device may not be provided only in the conveyance path of the predetermined primary continuous sheet S11, S12 or S13.

  Other configurations are the same as those of the first embodiment. In the second embodiment, the thickness, water absorption, and water retention by three plies are improved.

  In the second embodiment, for example, a laminated continuous sheet in which a sizing agent is applied to all three layers shown in FIG. 18, a laminated continuous sheet in which a sizing agent is applied only to the middle layer shown in FIG. 19, and FIG. A laminated continuous sheet in which a sizing agent is applied only to both outer layers shown, a laminated continuous sheet in which a sizing agent is applied to one outer layer and an intermediate layer, and the like shown in FIG. 21 can be manufactured.

  In the second embodiment, for example, a tissue paper made of a laminated continuous sheet in which a sizing agent is applied only to the primary continuous sheet S12 that is the middle layer shown in FIG. 19 and no sizing agent is applied to the primary continuous sheets S11 and S13 that are the outer layers. Has a high absorption rate and diffusibility of bodily fluids such as runny nose in the outer layer ply, and also has excellent penetration properties.

  As described above, also according to the second embodiment, a secondary web roll wound with the laminated continuous sheet S2 provided with a sizing agent can be manufactured, and this is used to fold tissue paper products in a multi-stand type interfolder. It becomes possible. In particular, in the second embodiment, three-ply tissue paper to which a sizing agent is applied can be produced at low cost and high productivity.

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

  3rd Embodiment is a form which manufactures 3 ply tissue paper similarly to 2nd Embodiment, sets each three primary fabric rolls to the ply machine X2, and each continuous which comprises lamination | stacking continuous sheet S2 The sheet is composed of three primary continuous sheets S11, S12, and S13.

  In the third embodiment, the ply machine X2 has the first stacking means 51 in the preceding stage of the sizing agent applying means 52, and the second stacking means 53 in the subsequent stage of the sizing agent applying means 52, and the three primary raw materials Of the primary continuous sheets S11, S12, and S13 fed from the rolls JR, JR, and JR, two primary continuous sheets S11 and S12 are stacked by the first stacking unit 51, and then do not pass through the sizing agent applying unit 52. Is supplied to the second laminating means 53, and one primary continuous sheet S13 is supplied to the second laminating means 53 via the sizing agent applying means 52 without passing through the first laminating means 51. .

  Also in the third embodiment, the installation mode and the number of installations of the sizing agent application device constituting the sizing agent application unit 52 are not limited. A mode in which only the sizing agent application device 52A in FIG. 22 is installed, a mode in which only the sizing agent application device 52A ′ indicated by a dotted line, or a mode in which both are installed can be taken.

  In the third embodiment, when manufacturing a three-ply tissue paper, the primary material rolls JR, JR, and JR reach the stacking means 53 at the subsequent stage of the sizing agent applying means 52 as in the second embodiment. Since there is no need to transport the primary continuous sheets S11, S12, and S13 separately, there is an advantage in terms of space.

  Furthermore, in the third embodiment, the path of supplying two primary continuous sheets S11 and S12 by the first stacking means 51 and supplying them to the second stacking means 53 without passing through the sizing agent applying means 52 is the sizing agent. This is the same as a line for producing a secondary raw roll for producing a normal two-ply tissue paper that does not impart the above. That is, there is a merit that it can be manufactured in common with the production line of tissue paper having the most versatile 2-ply and no sizing agent.

  Of course, the tissue paper provided with the sizing agent can be manufactured at low cost and high productivity, as in the first and second embodiments.

“Fourth Embodiment”
Next, a fourth embodiment of the present invention will be described with particular reference to FIG.
The ply machine X2 according to the fourth embodiment is also a mode in which some processes are different from those of the third 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 in the first to third embodiments, and are as described above.

  4th Embodiment is a form which manufactures 3 ply tissue paper similarly to 3rd Embodiment, sets the three primary fabric rolls to the ply machine X2, and each continuous which comprises lamination | stacking continuous sheet S2 In this configuration, the sheet is composed of three primary continuous sheets S11, S12, and S13.

  In the fourth embodiment, the ply machine X2 has the first stacking means 51 in the preceding stage of the sizing agent applying means 52, the second stacking means 53 in the subsequent stage of the sizing agent applying means 52, and the three primary raw rolls JR. , JR, JR out of the primary continuous sheets S11, S12, S13, the two primary continuous sheets S11, S12 are stacked by the first stacking means 51, and then passed through the sizing agent applying means 52. The first continuous sheet S13 is supplied to the second stacking unit 53 without passing through the first stacking unit 51 and the sizing agent applying unit 52.

  Also in the fourth embodiment, the installation mode and the number of installations of the sizing agent applying device constituting the sizing agent applying unit 52 are not limited. A mode in which only the sizing agent application device 52A in FIG. 23 is installed, a mode in which only the sizing agent application device 52A ′ indicated by the dotted line is installed, and a mode in which both are installed can be taken.

  In the fourth embodiment, when manufacturing a three-ply tissue paper, it is not necessary to separately transport a primary continuous sheet from each primary raw roll to the laminating means as in the third embodiment. There is an advantage in terms of space, and the tissue paper provided with the sizing agent can be manufactured at low cost and high productivity, as in the first to second embodiments.

"Specific example of sizing agent application means in ply machine"
A specific example of the sizing agent applying means (sizing agent applying step) 53 in the ply machine X2 common to the above embodiments will be described in further detail below. Here, the primary continuous sheets S11, S12, and S13 are not distinguished and are denoted by reference numeral S1.

[Flexo printing]
An example in which a flexographic printing machine is used as the sizing agent providing means 52 will be described with reference to FIGS.
Flexographic printing uses a resin-based elastic printing plate, so even if there are some irregularities of the crepe on the surface of the primary continuous sheet S1, it can be adjusted with the printing pressure and can be applied evenly, especially 700m / Min. Or more, even if high-speed coating is performed at 900 m / min, wrinkles are unlikely to enter the primary continuous sheet S1 after the sizing agent is applied. 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 sizing agent is applied to the primary continuous sheet S1 at 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. To do. 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 sizing agent can be stably applied in the sizing agent applying 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 the sizing agent can be applied extremely stably at the high processing speed exemplified above in the ply machine X2.

(Example embodiment of doctor chamber system)
An example in which a doctor chamber format in flexographic printing is applied to the present invention will be described with reference to FIGS.
In this example, an example in which two flexographic printing machines 91A and 91B are used to apply a sizing agent to the front and back surfaces of the primary continuous sheet S1 will be described. When applying to one side, only one of the two printing presses described should be used.

  In each of the printing presses 91A and 91B, doctor chambers 92A and 92B containing a sizing solution containing a sizing agent are disposed opposite to the rotatable anilox rolls 93A and 93B. The doctor chambers 92A and 92B to the anilox roll 93A. , 93B is delivered with size chemicals. 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 primary continuous sheet S1 are rotatably installed, and the size chemicals are 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 primary continuous sheet S1 with the elastic rolls 95A, 95B facing the printing plate rolls 94A, 94B across the primary continuous sheet S1, the printing plate rolls 95A, 95B are applied to the primary continuous sheet S1. Apply size chemical.

  Each of the doctor chambers 92A and 92B is connected to a storage tank 98 for storing the size chemical liquid L via a supply hose 96 and a return hose 97, and constitutes a part of the size chemical liquid circulation path (hereinafter, each printing machine 91A). , 91B may be described 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 size chemical solution is monitored and controlled in a coating device such as a paper powder or air filtration device or doctor chamber 92A or 92B contained in the size chemical solution circulating in the size chemical solution circulation path. An intermediate tank and piping heater can be installed to stabilize the viscosity.

  The size 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 size chemical solution is determined by opening / closing the adjustment valve 100. Adjusted. In addition, the size chemical solution is returned from the doctor chamber 91 </ b> A (91 </ b> B) to the storage tank 98 through the return hose 97 by the suction pump 101.

  In addition, the doctor chamber 91A (91B) includes a chamber portion 102 and blades 103 and 104 in which a size 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 sizing chemical solution circulation, the sizing 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 size chemical solution L is squeezed while being pressed against the anilox roll 93A (93B), so that the size to the anilox roll 93A (93B) is obtained. Keep the chemical supply rate constant.

  On the other hand, as shown in FIG. 26, a hole 106 a that is an opening portion of 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 size chemical liquid L and the chamber portion 102. Even if the size chemical liquid L in the connecting portion comes into contact with the outside air by the hole 106a and the size chemical liquid L is sucked by the suction pump 101, the size chemical liquid L comes into contact with the outside air, and the internal pressure in the chamber portion 102 is brought close to the external pressure. It is configured to be able to. 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 106a may be provided on the side surface as long as it is above the liquid surface of the size chemical solution L in the chamber portion 102.

  The hole 106a is provided with a discriminating means for discriminating excessive supply of the size chemical liquid to the chamber 102. The discriminating means may be, for example, a transparent or translucent tube-like member 106b extending upward with the hole 106a side as a lower end. In the process of circulating the size chemical L, the size chemical L is passed through the hole. It can be visually confirmed whether or not it flows into the tube 106b. When the inflow into the tube 106b is confirmed, the amount of the size chemical stored in the chamber portion 102 is excessive (the size chemical L is in an oversupply state with respect to the anilox roll 91A (91B). ) Therefore, the user who has visually confirmed the excessive state can eliminate the excessive state by, for example, adjusting the extrusion amount (flow rate) of the size 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 size 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. 27, a sensor 106d is attached to a cylindrical portion 106c in which the peripheral edge of the hole 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 object and a light receiving element (not shown) that receives reflected light from the detected object, and receives the reflected light from the light receiving element. Based on the amount, it is detected whether or not the height of the size chemical liquid L flowing into the cylindrical portion 106c has reached the height position (y1 shown in FIG. 27) where the sensor 06d is provided.

  The notification unit 106e is, for example, a speaker or the like, and when the sensor 106d detects that the height of the size chemical liquid L flowing into the cylindrical portion 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 the adjustment valve 100 is operated to adjust the extrusion amount (flow rate) of the size chemical liquid L. It becomes possible to eliminate the excessive state.

  Furthermore, as shown in FIG. 28, in addition to the automatic discrimination function, the determination of the oversupply state of the size chemical L to the chamber portion 102 is performed in addition to the adjustment portion 106f of the needle valve structure in which the cylindrical portion 106c includes a needle valve and an orifice. And the opening amount of the portion of the hole portion 106b that is in contact with the outside air can be adjusted. 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 size chemical liquid L flowing into the cylindrical portion 106c reaches the detection position by the sensor 106e, not only is the amount of extrusion of the size chemical liquid L adjusted, but also the hole formed by the adjustment unit 106f. By adjusting the substantial opening amount of 106b, it is possible to increase the air bleeding capability of the hole portion 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 size chemical liquid L from the inside of the chamber portion 102 due to the internal pressure fluctuation, the suction of the size chemical liquid L on the anilox roll 93A (93B) to the doctor chamber 92A (92B) side, etc. are suitably prevented. L circulation 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. The size chemical liquid L supplied more is configured to be 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 roll 95 </ b> A (95 </ b> B) is provided so as to contact the peripheral surface of the primary continuous sheet S <b> 1 wound around the elastic roll 95 </ b> A (95 </ b> B) and is 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 sizing chemical L adsorbed on the peripheral surface of the anilox roll 93A (93B) at the point P2, and conveys it to the point P1 by turning in the r2 direction, thereby conveying the primary continuous sheet S1. Transcript to. Even when the sizing liquid 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 printing plate roll 94A (94B). Thus, the size chemical L can be uniformly transferred to the primary continuous sheet S1.

  The elastic roll 95A (95B) is a columnar member that is provided adjacent to the printing plate roll 94A (94B) and rotates when a driving force is applied by a motor or the like (not shown). The continuous sheet S1 is configured to be gripped. Therefore, the elastic roll 95A (95B) is rotated in the r1 direction so as to wind the supplied primary continuous sheet S1 around the circumferential surface and to rotate the printing plate roll 94A (94B) and the anilox roll 93A (93B). Then, the size chemical L can be transferred from the printing plate roll 94A (94B) at the time when it is conveyed to the point P1 position.

  The direction of rotation of the elastic roll 95A (95B) is the r1 direction in FIG. 25, but 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. 25, only one supply hose 96 and one return hose 97 are connected to the chamber portion 102. However, in order to make the size chemical solution L in the width direction in the chamber portion 102 uniform, The structure shown to FIG. 29 (A)-(C) can be illustrated. FIG. 29A 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. 29B 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. 29C 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, a description will be given with reference to FIG. 30 of an example in which the two-roll transfer format in the flexographic printing is applied. Also in this embodiment, two flexographic printing machines 91C and 91D are used to apply the size chemical L to the front and back surfaces of the primary continuous sheet S1. In each printing machine 91C, 91D, dip rolls 92C, 92D, which are also squeezing rolls, are immersed in sizing chemical tanks 98C, 98D containing sizing chemical liquid L, and these dip rolls 92C, 92D are sized chemical liquid tanks 98C. , 98D, which is in contact with the anilox rolls 93C, 93D, which can be rotated outside, and the amount of the size chemical liquid is appropriately adjusted, and the amount of the size chemical liquid is delivered to the anilox rolls 93C, 93D. Since the size drug 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 play a role of taking up the size chemical liquid L from the size chemical liquid tanks 98C and 98D and adjusting the excessive size 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 transfer the sizing 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, are also in contact with one surface of the primary continuous sheet S1, and are opposed to the elastic rolls 95C and 95D facing each other with the primary continuous sheet S1 interposed therebetween. Then, the size chemical solution L is applied to the primary continuous sheet S1 while applying pressure to the primary continuous sheet S1.

  In this two-roll transfer system, a doctor blade may be provided for the anilox rolls 93C and 93D. In this case, the size chemical solution L can be applied uniformly, and the size chemical solution L is scattered from the anilox rolls 93C and 93D. However, in high-speed coating, there is a demerit that the frequency of care and replacement of the doctor blade is increased.

  Although not shown in the size chemical liquid tanks 98C and 98D, a paper heater for filtering paper dust and air contained in the size chemical liquid, a pipe heater for monitoring and controlling the temperature of the size chemical liquid, and stabilizing the size chemical liquid viscosity In addition, 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 by the moisture content in the width direction of the primary continuous sheet S1 or the like 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 size chemical solution tank. For these anilox rolls, a doctor blade that scrapes off the sizing 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 wear state of the blade and the mixed state of foreign matters such as paper dust in the size chemical solution can be easily observed.

[Gravure printing]
In the present invention, a gravure printing machine can be used as the sizing agent providing means 52. 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 sizing agent applying step (sizing agent applying means) 52 will be described with reference to FIGS. In this embodiment, as shown in FIG. 31, spray coating apparatuses 110 and 110 can be provided so that the size chemical solution is applied to the front and back surfaces of the primary continuous sheet S1. In order to do this, as shown in FIG. 31, a paper run is designed so that spraying is possible on the front and back surfaces of the primary continuous sheet S1 from the side, a mode of spraying the top and bottom surfaces of the primary continuous sheet S1 from above and below, The form which designs a paper run so that it may spray on the front and back from can be illustrated.

  In spray coating, since the surrounding chemicals are likely to scatter, it is preferable to provide a hood 52F that covers the sizing agent providing means 52 in order to prevent the 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, the spray pressure, the spray angle, and the spray so that the size chemical solution is sprayed uniformly in the width direction of the primary 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. Among these, the one-fluid spraying method applies pressure directly to the size chemical liquid to be sprayed using squeezed air and sprays mist droplets from the nozzle, or air enters 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 has the advantage that a small amount of spray liquid can be applied uniformly to the surface while suppressing the spraying of mist droplets, and the spraying speed and particle size of the mist can be easily adjusted. There is.

  In order to spray-coat the size chemical liquid uniformly on the surface of the primary continuous sheet S1, it is preferable that the atomized particle diameter of the atomized size chemical liquid is 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 primary continuous sheet S1, and the mist droplets are difficult to adhere to the surface of the primary continuous sheet S1. Therefore, in the spray coating method, the spray distance, the spray pressure, the spray angle, and the spray speed are added, and in the case of the two-fluid method, the mixing ratio of the size chemical solution and the compressed air for spraying, the concentration of the size chemical solution, Viscosity, etc. can be adjusted as appropriate to adjust the particle size to suit the coating conditions, and if the influence of the accompanying air is large during spraying, a suction device or baffle plate (rectifier plate) for removing the accompanying air The above-described hood and the like, and a charged electrode (electrostatic spraying method) that improves the adhesion of the mist to the primary continuous sheet S1 by applying high voltage to the tip of the spray nozzle to charge the mist droplet particles. May be added.

  The mist droplets floating as mist without being coated on the surface of the primary continuous sheet S1 can be sucked and collected and sprayed again.

  FIG. 33 shows a chemical spraying device 110 of a nozzle type spray system, particularly a two-fluid system. This device 110 is formed with a chemical solution passage 110A at the center and an air passage 110B around it, and atomizes the size chemical solution L ejected from the tip of the chemical solution passage 110A with the air discharged from the air passage 110B. Yes, the size drug solution 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 spraying device 110 can be provided at one or more intervals in the width direction of the primary continuous sheet S1.

  As described above, since the mist droplets are swept away by the rebound of the sprayed chemical liquid or the air accompanying the primary continuous sheet S1, and the mist droplets are less likely to adhere to the surface of the primary continuous sheet S1, as shown in FIG. Size chemical solution surrounding the sprayed chemical solution from the chemical solution spraying means (spray nozzle) by air 110G ejected from the air supply passage formed in the casing 153E from the periphery of the chemical solution spraying means (spray nozzle) of the type or two-fluid type Can be suitably applied to the primary continuous sheet S1.

  FIG. 35 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 high speed, and the sizing liquid L is sent into the fluid chamber 120B, and the sizing liquid in the fluid chamber is released from the ejection unit 120C by centrifugal force. To form fine 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 inkjet printing machine 130 is used as the sizing agent application step (sizing agent application means) 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 sizing solution L is connected to an ink jet head 132 via a supply path 131, and an ink jet is supplied from the tank by a supply pump (not shown). A size chemical is supplied to the head 132.

  A plurality of nozzle holes 134 are linearly arranged in a portion facing the primary continuous sheet S1, which is a material to be applied, of the inkjet head 132 so as to correspond at least to the width of the primary continuous sheet S1. A nozzle plate 133 is arranged.

  Here, the distance from the nozzle hole 134 to the primary continuous sheet S1 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 extremely 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, when applying the size chemical solution 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 a size chemical solution for ejection 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 sizing 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 controls the piezoelectric element as necessary. By applying a voltage to the sizing solution, the sizing solution is ejected from the nozzle holes 134 all at once, and accordingly, the sizing solution is applied over the entire width of one surface of the primary continuous sheet S1. 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, the more preferable conditions for applying the sizing agent by adopting the ink jet printing method are that 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).

Next, the tissue paper product (Example) manufactured with the manufacturing method of the tissue paper product concerning embodiment of this invention was contrasted with the comparative example.
The example in Table 1 is a two-ply tissue paper manufactured by the manufacturing method according to the first embodiment manufactured by the ply machine X2 shown in FIG. Examples A1 to A3, A5 to A7 have the structure shown in FIG. 13, and Example A4 has the structure shown in FIG.
Examples in Table 2 are three-ply tissue paper manufactured by the manufacturing method according to the second embodiment manufactured by the ply machine X2 shown in FIG. Example B1 has the structure shown in FIG. 20, Example B2 has the structure shown in FIG. 21, and Examples B3 to B9 have the structure shown in FIG.
In addition, Comparative Example A1 in the table is a non-moisturizing two-ply general-purpose tissue paper that is not provided with lotion chemicals, and Comparative Examples A2 to A3 are non-humidifying systems that are not provided with lotion chemicals. It is a commercial product of high-priced, high-ply, two-ply tissue paper. Comparative Example B1 is a commercial product of a high-priced three-ply tissue paper that is a non-moisturizing system to which a lotion chemical or the like is not applied, and has a high weight and a high paper thickness.

The physical properties, composition, etc. in each example are as shown in the table. The details are as follows.
Rice tsubo: Measured according to JIS P 8124 (1998). For the two-ply tissue products in Table 1, the average tsubo of each 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) (according to JIS P 8118 (1998)). ).
Density: The product density is the paper thickness of tissue paper (2 ply) by “PEACOCK G type”, which is a value obtained by doubling the rice paper product basis weight adjusted under JIS P 8111 conditions (C) (D) 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 by using “Universal Tensile Compression Tester TG-200N” manufactured by Minebea Co., Ltd.
Softness: Measured based on the handle ohm 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: average deviation MMD of the coefficient of static friction. 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 for measuring the MMD value, as shown in FIG. 38A, 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. 38A). 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). 38A schematically shows the friction element 212, and FIG. 38B shows an enlarged view of a portion surrounded by a dashed line in FIG. 38A.
Moisture content: Measured according to JIS P 8127 after being in an equilibrium state under the environment of JIS P 8111 (1998).
Amount to be applied: The amount to be applied indicates the content of the sizing component in a dry state (absolutely dry) included in the unit area of tissue paper in the standard state of JIS P 8111. Specifically, in the applied chemical solution The content of components other than moisture shall be indicated. The unit area of the tissue paper is an area of the plyed sheet viewed from a viewpoint perpendicular to the plane, and does not mean the total area of each plyed sheet and its front and back surfaces.
Chemical solution content rate: The chemical solution content rate is the moisture content in the chemical solution contained in the tissue paper product of the predetermined mass, with the tissue paper product of the predetermined mass adjusted under the conditions of JIS P 8111 as the denominator (A) (g). The ratio of (B) (g) divided by (A) is expressed as (%), with the mass (B) (g) excluding ## EQU1 ## as a molecule. (Chemical solution content%) = (B) ÷ (A) × 100 (%)
The water absorption is the “water absorption” described in JIS S3104, and is obtained by measuring the number of seconds for absorbing a certain amount of water on the tissue surface. The surface on both sides of the tissue is measured 5 times, and the average of the total 10 measurements is expressed in seconds.
Sensory evaluation: With respect to Examples and Comparative Examples, Table 1 was subjected to sensory evaluation based on the following criteria for 74 consumers, with respect to softness, smoothness, thickness, moist and sticky. In Table 2, sensory evaluation was conducted on 69 persons.
The criteria for sensory evaluation was that all the results of Comparative Example A1 (non-moisturizing two-ply general-purpose tissue paper to which no chemical solution was applied) were “3”, and those that felt “excellent” were “5” "4" for those who felt "excellent", "3" for those who felt "equivalent to the standard", "2" for those who felt "inferior", "notably inferior" “1” was assigned to those who felt that. Furthermore, the presence or absence of a sticky feeling was also evaluated, and the evaluation criteria were “◯” for “little sticky” and “x” for “obviously sticky”.
Evaluation of strike-through: Place a larger 2-ply sheet on the saucer of a glass petri dish and dent the center. 0.1 cc of water is gently dropped into the depression, and after 30 seconds, the degree of penetration is visually confirmed from below the petri dish. If there was an infiltrated part, “X”, and if there was no infiltrated part, “○”.

As can be seen from the results in each table, the tissue paper product to which the sizing agent is applied by the ply machine according to the present invention has reduced moisture permeability and higher “back-through evaluation” than the comparative example.
Moreover, although it seems to be the effect which gave the sizing agent to the outer surface side, it was shown that it has the paper quality which is excellent in smoothness. It was also shown that there was no sticky feeling seen in moisturizing tissue. Regarding the factors that have particularly good smoothness, the applied sizing agent is fixed to the pulp fiber, the orientation of the hydrophilic group and the hydrophobic group is advanced, the surface energy of the tissue surface is reduced, and the smoothness is smoothed. Conceivable.
In addition, as understood from the examples, it was found that tissue paper products with sufficient quality can be obtained and productivity is excellent even when the application speed is 900 m / min. Furthermore, it was found that the higher the speed, the better the feeling of thickness.

  As described above, according to the present invention, it is possible to produce a tissue paper having a high “prevention of back-through” effect with high production efficiency, and the tissue paper provided with a sizing agent on the outer surface is excellent in smoothness as compared with a general-purpose product, It was shown that there was no stickiness that would occur when a moisturizing chemical solution was applied, inferior to high-end products.

52 ... 1st lamination | stacking means 53 ... Size agent provision means (size agent provision process)
54 ... Laminating means (second laminating means) (lamination 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 roll roll R ... Secondary roll roll

Claims (11)

A method for producing a two-ply or three-ply tissue paper product to which a sizing agent is applied,
As a ply machine for producing secondary rolls for tissue paper products continuously from primary rolls made and wound by papermaking equipment;
Sizing agent applying means for applying a sizing agent to the primary continuous sheet fed from the primary raw roll,
Laminating means for laminating a primary continuous sheet along a continuous direction to form a laminated continuous sheet;
Contact embossing means for applying contact embossing 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 laminated continuous sheet coaxially to form a plurality of secondary rolls having a product width of tissue paper or multiple times the width thereof;
Are used in this order in the sheet flow direction, and each primary continuous sheet fed from the primary raw roll is supplied to the sizing agent applying means without being laminated;
A large number of secondary rolls each provided with a sizing agent obtained by the ply machine are set in correspondence with the folding mechanism of the multi-stand type interfolder. Each of the secondary continuous sheets from the raw roll is sent to the folding mechanism part, and the secondary continuous sheet is folded to obtain a laminated band stacked while crossing the side end portions 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.
A method for producing a tissue paper product provided with a sizing agent. A method for producing a two-ply tissue paper product to which a sizing agent 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 sizing agent applying means for applying a sizing agent;
Laminating means for laminating a plurality of continuous sheets along the continuous direction to form a laminated continuous sheet;
Contact embossing means for applying contact embossing to the laminated continuous sheet;
Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper or a multiple of the width,
Winding means for winding each slit laminated continuous sheet coaxially to form a secondary raw roll of product width of tissue paper or a multiple of the width,
Is incorporated in the sheet flow direction,
And using a transport path that is supplied to the stacking means via the sizing agent applying means and a transport path that is supplied to the stacking means without passing through the sizing agent applying means;
A primary continuous sheet is fed out from each of two primary raw rolls, one of the primary continuous sheets is supplied to the laminating means via the sizing agent applying means, and the other primary continuous sheet is not passed through the sizing agent applying means. To the laminating means, the continuous sheet to which the sizing agent passed through the sizing agent applying means in the laminating means and the continuous sheet not passing through the sizing agent applying means are laminated and integrated,
A large number of secondary raw rolls to which a sizing agent is applied, obtained by the ply machine, are set corresponding to the folding mechanism part of the multi-stand type interfolder. Sending the secondary continuous sheet from the anti-roll to the folding mechanism part, folding the secondary continuous sheet and obtaining the laminated band stacked while crossing the side edge 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.
A method for producing a tissue paper product provided with a sizing agent. A method for producing a three-ply tissue paper product to which a sizing agent 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 sizing agent applying means for applying a sizing agent;
Laminating means for laminating a plurality of continuous sheets along the continuous direction to form a laminated continuous sheet;
Contact embossing means for applying contact embossing to the laminated continuous sheet;
Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper or a multiple of the width,
Winding means for winding each slit laminated continuous sheet coaxially to form a secondary raw roll of product width of tissue paper or a multiple of the width,
Is incorporated in the sheet flow direction,
A conveying path that is supplied to the laminating means via the sizing agent applying means, and a conveying path that is supplied to the laminating means without passing through the sizing agent applying means, and from a primary material roll A continuous sheet of a different route fed to the laminating means;
The primary continuous sheet is fed out from each of the three primary raw rolls and supplied to the laminating means by different paths, and one or two of the primary continuous sheets are supplied to the laminating means via the sizing agent applying means, The continuous sheet to which the sizing agent has been applied via the sizing agent applying means and the continuous sheet that does not pass through the sizing agent applying means are laminated and integrated in the laminating means,
A large number of secondary raw rolls to which a sizing agent is applied, obtained by the ply machine, are set corresponding to the folding mechanism part of the multi-stand type interfolder. Sending the secondary continuous sheet from the anti-roll to the folding mechanism part, folding the secondary continuous sheet and obtaining the laminated band stacked while crossing the side edge 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.
A method for producing a tissue paper product provided with a sizing agent. A method for producing a three-ply tissue paper product to which a sizing agent 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 first laminating means for laminating a plurality of continuous sheets along the continuous direction to form a laminated continuous sheet;
A sizing agent applying means for applying a sizing agent;
A second laminating means for laminating a plurality of continuous sheets along the continuous direction to form a laminated continuous sheet;
Contact embossing means for applying contact embossing to the laminated continuous sheet;
Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper or a multiple of the width,
Winding means for winding each slit laminated continuous sheet coaxially to form a secondary paper roll having a product width of tissue paper or a multiple of the width is incorporated in the sheet flow direction,
And a transport path supplied to the second stacking means via the first stacking means and the sizing agent applying means, and a supply path to the second stacking means without passing through the first stacking means and the sizing agent applying means. Having a transport path to be used;
The primary continuous sheet is fed out from each of the three primary raw rolls, and two primary continuous sheets are supplied to the second laminating means via the first laminating means and the sizing agent applying means, and one primary continuous sheet is supplied. A continuous sheet supplied to the second laminating means without passing through the first laminating means and the sizing agent applying means, and a continuous sheet to which the sizing agent is applied via the first laminating means and the sizing agent applying means in the second laminating means; The continuous sheet that does not go through the sizing agent application means is laminated to form a continuous sheet,
A large number of secondary raw rolls to which a sizing agent is applied, obtained by the ply machine, are set corresponding to the folding mechanism part of the multi-stand type interfolder. Sending the secondary continuous sheet from the anti-roll to the folding mechanism part, folding the secondary continuous sheet and obtaining the laminated band stacked while crossing the side edge 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.
A method for producing a tissue paper product provided with a sizing agent. A method for producing a three-ply tissue paper product to which a sizing agent 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 first laminating means for laminating a plurality of continuous sheets along the continuous direction to form a laminated continuous sheet;
A sizing agent applying means for applying a sizing agent;
A second laminating means for laminating a plurality of continuous sheets along the continuous direction to form a laminated continuous sheet;
Contact embossing means for applying contact embossing to the laminated continuous sheet;
Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper or a multiple of the width,
Winding means for winding each slit laminated continuous sheet coaxially to form a secondary raw roll of product width of tissue paper or a multiple of the width,
Is incorporated in the sheet flow direction,
And a transport path that is supplied to the second stacking means via the sizing agent applying means without passing through the first stacking means, and the first route without passing through the sizing agent applying means via the first stacking means. 2 having a conveyance path supplied to the stacking means;
A primary continuous sheet is fed out from each of the three primary rolls, and two primary continuous sheets are supplied to the second laminating means via the first laminating means and not via the sizing agent applying means, and one primary continuous sheet is supplied. The sheet is supplied to the second laminating means via the sizing agent applying means without going through the first laminating means, and the sizing agent does not pass through the first laminating means and passes through the first laminating means in the second laminating means. And a continuous sheet laminated with a continuous sheet provided with a sizing agent via a sizing agent application means without passing through a first lamination means,
A large number of secondary raw rolls to which a sizing agent is applied, obtained by the ply machine, are set corresponding to the folding mechanism part of the multi-stand type interfolder. Sending the secondary continuous sheet from the anti-roll to the folding mechanism part, folding the secondary continuous sheet and obtaining the laminated band stacked while crossing the side edge 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.
A method for producing a tissue paper product provided with a sizing agent.   The method for producing a tissue paper product to which a sizing agent is applied according to any one of claims 1 to 5, wherein the sizing agent applying means applies a sizing agent to a position to be a laminated inner surface. The manufacturing method of the tissue paper product to which the sizing agent of any one of Claims 1-6 which makes the provision amount of a sizing agent 0.05-10.0 g / m < ² >.   The tissue paper product to which the sizing agent according to any one of claims 1 to 7 is added, wherein a cationic wet paper strength enhancer is internally added to the primary continuous sheet, and the sizing agent is an anionic sizing agent. Manufacturing method.   The manufacturing method of the tissue paper product to which the sizing agent of any one of Claims 1-8 which provides a nonionic surfactant with a sizing agent in a sizing agent provision means.   The method for producing a tissue paper product provided with the sizing agent according to any one of claims 1 to 9, wherein the sizing agent applying means is a flexographic printing machine.   A tissue paper product manufactured by the method for manufacturing a tissue paper product to which the sizing agent according to any one of claims 1 to 10 is applied.

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