JP5855810B2 - Manufacturing method of tissue paper products - Google Patents

Description

  The present invention relates to a method for manufacturing tissue paper products using a multi-stand type interfolder.

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

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

The following is a conventional example of a manufacturing method using a multi-stand type interfolder. That is, a primary web roll (generally also called a jumbo roll) is manufactured by making sanitary thin paper in a papermaking facility and winding it, and then setting this primary web roll on a ply machine, The primary continuous sheet fed from the original fabric roll is overlapped and wound up and slit (divided into a product width of tissue paper or a multiple of the width of the tissue paper in the width direction) to produce a secondary original fabric roll composed 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, which is stored in a storage box. .
A manufacturing method using such a multi-stand type interfolder has a high productivity since it has a large number of folding mechanisms (usually about 80 to 100) compared to a manufacturing method using other folding equipment. Has the advantage.

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

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

  Moisturizing tissue paper, which is a tissue paper product to which chemicals have been applied, is currently said to be in demand at 800 tons / month, but the population and amount used continue to increase as the recognition rate of moisturizing tissue increases. Yes. For this reason, in order to cope with the increase in the population used and the amount used, it has become necessary to produce and supply to the market moisturized tissue paper differentiated in quality with a more productive facility.

Accordingly, there is a demand for production using a multi-stand type interfolder with higher productivity. The production capacity of the multi-stand type interfolder depends on the production capacity of the ply machine, which is the previous process, and the production capacity of the ply machine is designed based on the production capacity of the paper machine. In general, it is said that the production capacity of multi-stand type interfolders is a high-speed type with a production capacity of about 300 to 500 carton / min. It is necessary to produce a ply material with coating.
In the application and coating of so-called western paper for general coated paper and high-grade paper, blade coaters, gate roll coaters, etc. are employed and are operated at production speeds exceeding 1000 m / min. / M ^{2 is} a high-strength paper with a coating strength specialized in productivity. The sanitary thin paper, which is a crepe paper having a basis weight of about 10 to 25 g / m ² , has a relatively low strength and is easily stretchable with an elongation rate of 10 to 25%. When applying a general paper application method Was not suitable due to problems such as running out of paper.

Here, when applying a chemical solution to sanitary thin paper which is a crepe paper having a weight of about 10 to 25 g / m ² , an application using a printing coater such as a gravure printing method, a flexographic printing method, or the like A spray method can be used, but in order to carry out stable application corresponding to the unevenness of the crepe paper, the flexibility of the plate, prevention of chemical dispersion, easy adjustment of the application amount, etc. Flexographic printing is suitable because of requirements. However, until now, since there was no need for high-speed coating at 700 m / min or higher, research and investigation of a coating method for high-speed coating suitable for crepe paper with low strength and easy to stretch has not been made. However, the current coating speed was only about 100 to 250 m / min.

  In other words, in the gravure printing method, the gravure roll is made of metal and there is almost no application amount adjustment width in the width direction due to printing pressure, so there is no means for adjusting the application amount for the unevenness of the paper, and in the width direction. It is virtually impossible to apply uniformly. Further, the adhesion of the crepe paper to the metal gravure roll is low, and the chemical liquid that is not transferred to the paper remains on the gravure roll, and is easily scattered by the centrifugal force of the rotating roll. Furthermore, although the coating amount can be changed by changing the gravure roll itself, there is a drawback that the labor for replacing the roll is large.

On the other hand, in the spray method, there is an overlap allowance depending on the spray application angle, so in principle it is not possible to apply uniformly in the width direction, and scattering increases due to the influence of the wind accompanying the paper surface as the speed increases. Had.
Even when the flexo method is applied, there is no drawback in the above gravure method or spray method to apply moisture-containing chemicals to sanitary thin paper at a high speed. There have been problems such as a decrease in paper strength due to moisture in the drug due to water, a decrease in response to changes in draw due to elongation, tearing of paper during contact embossing, and winding slippage due to slipping of the coating surface.
In other words, in normal flexographic printing, the ink used is mainly composed of pigment, resin, and water, and the ink is transferred from the convex part of the resin plate to form an image on a part of the sheet. It is difficult to cause stretching, wrinkles, etc., and it is relatively easy to handle high-speed printing. However, when applying a chemical solution by flexographic printing, the chemical solution is composed mainly of a moisture-absorbing moisturizer such as glycerin, a surfactant, and moisture, and the chemical solution is transferred to both sides of the sheet. As strength reduction, elongation, wrinkles, etc. occur and the above-mentioned problems exist, there are difficulties in high-speed coating and processing in subsequent processes.

  Accordingly, the main problem of the present invention is that in a method for manufacturing tissue paper products using a multi-stand type interfolder, a chemical solution is applied at a high speed and uniformly with a sanitary thin paper having a low paper strength and a low weight, and for example, tearing or breaking due to contact embossing. An object of the present invention is to provide a method for manufacturing a secondary roll for tissue paper products that can prevent paper and rolls from being rolled and can be stably operated.

Means for solving the above problems and their effects are as follows.
[Invention of Claim 1]
Producing a plurality of secondary web rolls for setting in the multi-stand type interfolder from the primary web roll;
Set the secondary web roll in the multi-stand type interfolder, feed the secondary continuous sheet from the set secondary web roll, and fold it so that the side edges of the adjacent secondary continuous sheets are crossed together Laminating and producing a laminated strip,
Cutting the laminated strip, having a perforation on the upper surface, and opening the opening by breaking the perforation, and storing the opening in a storage box covered with a film having a slit. ,
When the uppermost tissue paper is pulled out from the slit, the next tissue paper is drawn out .
The process of manufacturing the said secondary raw fabric roll,
A lamination step of the laminated continuous sheet basis weight fed from a plurality of primary source roll is stacked along the primary continuous sheet of 10 to 25 g / m ² to the continuous direction,
70 to 90% by mass of moisture-retaining polyol, 1 to 15% by mass of moisture, 0.01 to 22% by mass of functional chemicals, and 1 to 700 mPa · s of chemical solution at 40 ° C. with respect to the laminated continuous sheet. A chemical solution application process to be applied;
A slitting process for slitting the laminated continuous sheet so as to be a product width of tissue paper or a multiple of the width,
A bonding step for forming a line-shaped bonding portion for preventing delamination for the laminated continuous sheet performed between the chemical solution coating step and the slit step;
Winding the slits each laminated continuous sheet coaxially to form a plurality of secondary rolls of tissue paper product width or multiple times the width simultaneously,
The chemical solution application step is a doctor chamber-type flexographic printing method in which a chemical solution is applied by a chemical solution application portion having a number of flexo resin plates of 10 to 60 lines , and each of the surfaces of the laminated continuous sheet A method for producing a tissue paper product, wherein a chemical solution is applied in a total amount of 1.5 to 5.0 g / m ² on both sides .

[Invention of Claim 2]
Between the chemical solution application step and the slit step, a lamination step is provided between the receiving roll and the roller, and a joining step for forming a line-shaped joining portion that prevents delamination on the lamination continuous sheet is provided,
The chemical solution applying step is a step of applying a chemical solution by at least two chemical solution applying units by a doctor chamber type flexographic printing method, where one chemical solution applying unit is located on the sheet side in contact with the roller, and the other chemical solution 2. The tissue paper product according to claim 1, wherein the applying part is located on the other sheet side, and an application amount of one chemical solution applying part is made smaller than an application amount of the other chemical solution applying part. Method.

[Invention of Claim 3]
2. A lotion agent, which is a chemical solution, is applied at a coating amount of 2.0 to 4.5 g / m ^{2 in} total on both sides while conveying a laminated continuous sheet at a speed of 900 m / min or more. Or the manufacturing method of the tissue paper product of Claim 2.

In the manufacturing method according to the present invention, many secondary paper rolls for tissue paper products manufactured so as to have a product width of tissue paper or a multiple of the width of tissue paper in the slit process are set in a multi-stand type interfolder in this subsequent stage. The Next, the secondary continuous sheet is fed out from the secondary raw roll set in the multi-stand type interfolder, sent to the folding mechanism, stacked while being folded, and then cut into a predetermined length and the tissue paper Make a bundle and store it in a storage box.
In this invention, a chemical | medical solution is provided with respect to the lamination | stacking continuous sheet which concerns on manufacture of the secondary raw material roll for tissue paper products. For this reason, compared with the case where a chemical | medical solution application | coating process is provided separately from a ply machine and a multi-stand type | system | group interfolder, while being able to hold down an installation cost and being able to reduce a manufacturing process, it leads to the efficiency at the time of manufacture. Moreover, when manufacturing the tissue paper product which does not provide a chemical | medical solution, since it is only necessary to abbreviate | omit a chemical | medical solution application | coating process from the manufacturing process of the secondary raw material roll for tissue paper products, switching of an installation can be performed easily.

  In the manufacturing process of the secondary raw material roll for tissue paper products according to the present invention, the chemical solution coating process is preferably performed after the laminating process and before the slitting process. Because, if the chemical solution application step is before the lamination step, equipment for applying the chemical solution to each primary continuous sheet must be provided, and on the other hand, after the slit step, the slit step Since the chemical solution is applied to the laminated continuous sheet divided into a plurality by the chemical solution, the chemical solution leaks from the slit portion, causing the roll to become dirty and cause paper breakage. If the chemical solution application process is performed between the laminating step and the slitting process, it is only necessary to prepare equipment for applying the chemical solution only to the laminated continuous sheet that is not divided by the slitting process. This is because the operation is stable because there is little paper break.

In addition, a bonding process for forming a line-shaped bonding portion for preventing delamination on the laminated continuous sheet exists between the chemical solution coating process and the slit process, but when performing this bonding process, The laminated continuous sheet is joined with the laminated continuous sheet sandwiched between the receiving roll and the roller.
In addition, as a joining process for preventing delamination with respect to the laminated continuous sheet, means such as crimping or adhesion may be used. However, the joining process is performed, for example, by providing line-shaped contact embossing on the laminated continuous sheet. It may be a contact embossing process. When such a contact embossing process exists between the chemical solution application process and the slit process, the contact embossing process is performed by sandwiching the laminated continuous sheet between the receiving roll and the roller. It will be embossed.

Here, when the contact embossing process as an example of the joining process is performed before the chemical solution application process, the chemical solution is applied in a state where the contact embossed portion and the non-applied portion of the laminated continuous sheet are formed. . For this reason, unevenness occurs in the amount of the chemical solution applied, a difference occurs in the elongation rate between the portion where the chemical solution is applied abundantly and the portion where the chemical solution is applied a little, and the tissue paper product becomes wrinkled and looks bad.
In addition, when the contact embossing step is after the slitting step, contact embossing is given to the laminated continuous sheet having a slit in the product width. As a result of (2 lines) contact embossing being performed, it becomes easier to cut the paper as compared with contact embossing with the full width of the line not slitting.

  On the other hand, the above-mentioned chemical solution application step is a step of applying a chemical solution by means of a medical solution application unit using a doctor chamber type flexographic printing method. In this chemical solution application step, for example, a roller used in a joining step which is a contact embossing step. Applying chemicals to each laminated continuous sheet from both sides of the laminated continuous sheet while reducing the coated amount of the sheet in contact with the roller on the opposite side relative to the coated amount of the other sheet not facing the roller ing. And, by winding each laminated continuous sheet slit in the slit step in the winding step coaxially with the side facing the roller as the outer peripheral side, the product width of the tissue paper or a plurality of secondary widths of the tissue paper A raw roll is formed at the same time.

Accordingly, by reducing the coating amount on the outer peripheral side of the winding drum used in the winding process to less than the coating amount on the inner peripheral surface, the secondary roll is wound without meandering during winding. be able to. In other words, since the amount of application to the surface in contact with the two winding drums used at the time of winding is reduced, this portion becomes resistance, making it difficult to slip between the two winding drums and winding without meandering It is possible to avoid the problem that the sanitary thin paper product which is wound around the drum at a high speed and becomes a secondary raw roll after the slit causes winding misalignment and becomes unusable.
On the other hand, for example, by reducing the coating amount on the surface side of the laminated continuous sheet facing the roller for contact embossing, which is a kind of bonding, with respect to the coating amount on the other surface side not facing the roller, There is an advantage that the paper is not easily torn during the contact embossing after the chemical solution coating process.

Here, the characteristics of the flexo printing method of the doctor chamber type used in the present invention will be described below while being compared with the two-roll flexo method.
In other words, in the doctor chamber type and the two-roll flexo system, the plate material forming the printing plate roll is resin, and it is possible to easily cope with paper irregularities by changing the printing pressure, and from anilox roll to printing plate roll Although there is an advantage that the transfer amount of the chemical solution is uniform in the width direction, the transfer amount from the anilox roll to the printing plate roll tends to be uniform in the width direction if the doctor chamber is used. In addition, these squeeze the chemical solution with anilox roll, so that the lotion agent that is a chemical solution is less scattered, the yield of the chemical solution is high, and the application amount can be changed by selecting the printing plate, Have both.

  On the other hand, the two-roll flexo system has an open system structure, which has the disadvantage that paper dust is easily mixed in, whereas the doctor chamber type has a closed structure, so the inside of the chamber can be There is an advantage that there is no mixing of paper powder. In addition, the two-roll flexo system has the disadvantage that air is likely to be mixed in with fountain rolls (dip rolls), while the doctor chamber type scrapes off the chemicals by the doctor in the chamber. As a result, the air is less embraced and the air is less mixed.

  As described above, in the two-roll flexo system, the change in the viscosity of the chemical solution due to the mixing of paper dust and air increases. As a result, it is necessary to frequently adjust the clearance between the printing plate roll and the sheet. There is a drawback of frequent replacement. On the other hand, the doctor chamber type has an advantage over the two-roll type that there is little change in the viscosity of the chemical solution due to mixing of paper dust and air, and the coating amount is stable in the flow direction and width direction of the sheet. .

On the other hand, along with the above, during the subsequent processing into a multi-stand type interfolder (8 hours or more), it becomes a chemical solution applied to the inner surface of the secondary raw roll. The lotion agent is transferred to the outer peripheral surface of the secondary raw roll, so that both outer surfaces have uniform surface properties and uniform tissue quality with no difference between the front and back sides. Furthermore, since a chemical | medical solution is provided to the wide lamination | stacking continuous sheet before a slit process, the application quantity of the width direction of a lamination | stacking continuous sheet is uniform, scattering of a lotion agent is low and a yield becomes high.
Therefore, as in the present invention, by using the doctor chamber type, the response accuracy of the coating amount adjustment is high and uniform in the width direction, and the meander of the secondary raw roll is eliminated, and the finishing efficiency is improved. . In addition, a uniform quality moisturizing tissue with little difference between the front and back sides can be obtained.

  As described above, according to the method for manufacturing tissue paper products according to the present invention, a chemical solution is uniformly applied at high speed on household paper with low paper strength, and for example, torn and paper break due to contact embossing, and roll deviation of the original fabric are prevented and stabilized. Will be able to operate.

  In addition, the chemical solution application step is a step of applying a chemical solution by at least two chemical solution application units by a doctor chamber type flexo method, and one chemical solution application unit is located on the side of the sheet in contact with the roller, and the other chemical solution application The part is located on the other sheet side, and the application amount of one chemical solution application part is smaller than the application amount of the other chemical application part. Along with this, the flexo type makes it possible to adjust the application amount with printing pressure even if there are some unevenness on the sanitary thin paper because the plate is resin and elastic, so it is like gravure printing Wrinkles are less likely to enter the laminated continuous sheet than when applied by a simple metal roll or spray method, and can be applied uniformly in the width direction.

  On the other hand, by using a doctor chamber type that applies flexographic printing, the coating amount can be stabilized even at high processing speeds, and one anilox can be set by setting the number of lines and area ratio of the printing plate. A wide range of liquid chemicals can be stably and uniformly applied with a roll. The number of lines of the flexographic resin plate when performing high-speed coating is 10 to 60 lines, preferably 15 to 40 lines, and particularly preferably 20 to 35 lines.

  In the present invention, in the chemical solution coating process, a doctor chamber type is applied so that the coating amount can be stabilized in the width direction and temporally (in the flow direction). By reducing the coating amount on the surface, the contact embossed portion can be prevented from being broken, and the same surface can be placed outside so as to come into contact with the winding drum, thereby preventing winding deviation. In addition, the stable application amount avoids making weak portions on the sanitary thin paper, enabling high-speed application and processing.

  In addition, there is a possibility that the application amount of the chemical solution changes in the width direction in response to changes in the external environment such as temperature changes, and it is necessary to adjust as needed. In other words, although the temperature of the chemical solution is controlled, if the application amount in the width direction varies due to external factors such as external temperature changes or the viscosity of the chemical solution due to paper dust or air contamination, Due to the difference in the elongation of the film, it may be considered that a winding slip or a defective shape of the original fabric is generated. In the case of gravure printing, it is difficult to make adjustments for improving winding deviation due to such excessive application. As a result, doctor chamber-type flexographic printing, which has a wide application amount adjustment range and is easy to adjust, is more advantageous than gravure printing.

Furthermore, if it is a doctor chamber type which can respond to high-speed printing, it is 1.0-7.0 g / m < ² > only by selecting a printing plate with respect to an anilox roll according to a chemical | medical solution physical property or a required coating amount. The amount of coating can be changed within a range of 1. Thus, not only the laminated continuous sheet is set to a speed of 700 m / min or more, but also a lotion agent to be used as a chemical solution is conveyed in a total of 1 on both sides while being conveyed at a speed of 900 m / min or more. Even when applied at a coating amount of 5 g to 5 g / m ² , the coating is uniform and the laminated continuous sheet can be wound without meandering.

It is the schematic which shows the manufacturing equipment and manufacturing method of a primary web roll. 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 manufacturing equipment and manufacturing method of a secondary web roll. It is a principal part enlarged view of the periphery of the chemical | medical solution provision means shown in FIG. It is a figure which shows a mode that the contact embossing is provided to the lamination | stacking continuous sheet by the contact embossing means. It is a schematic block diagram of the chemical | medical solution supply apparatus of 2nd Embodiment. It is a schematic diagram for demonstrating the derivation | leading-out part of the chemical | medical solution supply apparatus in FIG. It is a schematic diagram for demonstrating the derivation | leading-out part of the chemical | medical solution supply apparatus of 3rd Embodiment. It is a schematic diagram for demonstrating the derivation | leading-out part of the chemical | medical solution supply apparatus of 4th Embodiment. It is a figure explaining the structure of the doctor chamber used with the chemical | medical solution supply apparatus of 2nd Embodiment, (A) shows the structure which has two introducing | transducing parts and one derivation | leading-out part, (B) is three introducing | transducing parts. (C) shows a structure in which the same number of introduction parts and derivation parts exist.

Next, an embodiment of the present invention will be described. In the figure, the arrow HD indicates the horizontal direction, and the arrow LD indicates the vertical direction.
[Method for producing primary roll]
An example of the manufacturing method of a primary fabric roll is demonstrated referring FIG.
As shown in FIG. 1, the wet paper W that has passed through the wire part is placed on the bottom felt 111 and transferred, and thereafter, sandwiched between the top felt 110 and the bottom felt 111, between the top roll 112 and the bottom roll 113. Passed and squeezed. Thereafter, the wet paper web W squeezed is attached to the surface of the Yankee dryer 115 via the touch roll 116 while being placed on the top felt 110. Then, the wet paper W is dried by the Yankee dryer 115, peeled off by the doctor blade 117, and then wound up to be a primary raw roll JR.
When making this paper, for example, adding a suitable agent such as a dispersant, a dry paper strength enhancer, a wet paper strength enhancer, a softener, a release agent, a coating agent, a pH adjuster such as caustic soda, an antifoaming agent, and a dye. can do.
In the method of manufacturing the primary raw roll, the smoothing process can be performed by the calendar means 118 after being peeled off by the doctor blade 117.

[Production facilities for secondary rolls for tissue paper products]
As shown in FIG. 11, the production facility X1 (ply machine X1) for the secondary paper roll for tissue paper products according to the present invention includes at least two primary web rolls JR manufactured by the above-described manufacturing method or the like. The ply means 51 is configured so that the primary continuous sheet S1 fed from the primary raw roll JR can be laminated along the continuous direction to form a laminated continuous sheet S2.

  A pair of chemical solution applying means 53 for applying a chemical solution to the laminated continuous sheet S <b> 2 flowing from the ply means 51 is provided at the subsequent stage of the ply means 51. Slit means 55 is arranged, which is composed of a plurality of cutters, and slits the laminated continuous sheet S2 transferred from the chemical solution applying means 53 so as to have a product width of tissue paper or a multiple width thereof. In the subsequent stage of the slit means 55, the laminated continuous sheet S2 slit by the slit means 55 is coaxially wound to form a plurality of secondary raw rolls R having a product width of tissue paper or a multiple of the width. A take-off means 56 is provided. Here, the winding means 56 has two winding drums 56A for guiding each slit continuous sheet S2 to the secondary raw roll R, and these two winding drums 56A are secondary. The laminated continuous sheet S2 is guided in contact with the outer peripheral surface of the raw roll R.

(Calendar means)
One or more calendering means 52 for calendering the laminated continuous sheet S2 may be provided in the production facility X1 for the secondary paper roll for tissue paper products.
The type of calendar in the calendar means 52 is not particularly limited, but is preferably a soft calendar or a chilled calendar for the purpose of improving the smoothness of the surface and adjusting the paper thickness. A soft calendar is a calendar using a roll coated with an elastic material such as urethane rubber, and a chilled calendar is a calendar made of a metal roll.
The number of calendar means 52 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.
When two or more calendar means 52 are installed, they can be arranged side by side in the horizontal direction, the up-down direction, or the diagonal direction, and these installation directions may 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. Note that the holding angle referred to here means an angle during which the sheet is in contact with the center of the roll axis (a part of a circular arc of a cross section perpendicular to the axis).
Paper making is also performed as control factors such as calendar type, nip line pressure, and number of nips in the calendar processing conditions, and these control factors are preferably changed as appropriate according to the required sheet quality, that is, the sheet thickness and surface properties.
Further, the installation position of the calendar means 52 is not particularly limited. However, the calendar means 52 is positioned after the ply means 51 and before the chemical solution applying means 53, or after the chemical solution applying means 53 and before the contact embossing means 54. Can do.

(Medicating means)
The chemical solution applying step for applying a chemical solution to the laminated continuous sheet S2 is performed by the chemical solution applying unit 53. Specifically, the chemical solution applying unit 53 includes two chemical solution applying units 53A and 53B in a doctor chamber format, respectively. The chemical solution is applied by these two chemical solution application portions 53A and 53B. And while conveying laminated | multilayer continuous sheet S2 at a speed | rate of 700 m / min or more, Preferably it is 900 m / min or more, the lotion agent used as a chemical | medical solution is 1.5g-5g in total of both surfaces by these chemical | medical solution provision means 53A, 53B. The coating amount is / m ² .
The coating amount was calculated from the difference between each sheet basis weight when the chemical solution after ply was not applied during operation and each sheet basis weight immediately after the corresponding application.
(Coating amount g / m ²⁾ = (basis weight g / m ² immediately after coating) - (the basis weight g / m ² in the case of not applying)
The coating amount of both surface layers or the total coating amount of both surfaces is the total coating amount per unit area of the plyed tissue paper sheet, and the coating amount of each sheet is added.

  That is, as shown in FIG. 11 and FIG. 12, the chemical solution application unit 53A in the form of one of the doctor chambers is arranged such that the doctor chamber 61A containing the chemical solution is opposed to the rotatable anilox roll 63A, The chemical solution is delivered from the doctor chamber 61A to the anilox roll 63A. Further, a printing plate roll 64A that is in contact with the anilox roll 63A and is also in contact with one surface of the laminated continuous sheet S2 is rotatably installed, and a chemical solution is delivered from the anilox roll 63A to the printing plate roll 64A. Further, while applying pressure to the laminated continuous sheet S2 with the impression cylinder 65A facing the printing plate roll 64A across the laminated continuous sheet S2, the chemical solution is applied from the printing plate roll 64A to the laminated continuous sheet S2. It has become.

  In the present embodiment, the chemical solution application portion 53A is positioned on the surface side of the laminated continuous sheet S2 that faces a roller 54A of a contact embossing means 54 described later and also faces the winding drum 56A. A supply pump (not shown) for applying a chemical solution to the doctor chamber 61A and a discharge supply pump (not shown) for returning the chemical solution from the doctor chamber 61A are installed in the doctor chamber 61A.

  On the other hand, as shown in FIG.11 and FIG.12, the chemical | medical solution provision part 53B made into the other doctor chamber form is arrange | positioned facing the rotatable anilox roll 63B in the doctor chamber 61B containing the chemical | medical solution, The chemical solution is delivered from the doctor chamber 61B to the anilox roll 63B. Further, a printing plate roll 64B that is in contact with the anilox roll 63B and is also in contact with the other surface of the laminated continuous sheet S2 is rotatably installed, and a chemical solution is delivered from the anilox roll 63B to the printing plate roll 64B. Yes. Further, while applying pressure to the laminated continuous sheet S2 with the impression cylinder 65B facing the printing plate roll 64B across the laminated continuous sheet S2, the chemical solution is applied from the printing plate roll 64B to the laminated continuous sheet S2. It has become.

  And in this Embodiment, this chemical | medical solution provision part 53B is located in the other surface side of the lamination | stacking continuous sheet S2 which is made not to oppose the roller 54A, and is also not made to oppose the above-mentioned winding drum 56A. A supply pump (not shown) for applying a chemical to the doctor chamber 61B and a discharge supply pump (not shown) for returning the chemical from the doctor chamber 61B are also installed in the doctor chamber 61B. .

  Accordingly, the chemical solution is applied to both surfaces of the laminated continuous sheet S2 from the chemical solution applying unit 53A and the chemical solution applying unit 53B. At this time, the coating amount on the surface side of the laminated continuous sheet S2 facing the roller 54A by the chemical solution applying unit 53A Is applied to the laminated continuous sheet S2 from both sides of the laminated continuous sheet S2, while reducing the amount of the liquid applied to the other surface side by the chemical liquid applying unit 53B.

However, the total coating amount on both sides is 1.5 to 5 g / m ² as described above, and the coating amount on the outer peripheral surface of the secondary web roll R which is a ply web roll is the secondary web roll R. The coating amount is less than the inner peripheral surface. Of the total application amount of the lotion agent on both sides of the paper, the application amount on the outer peripheral surface of the secondary raw roll R is preferably 20% or more and less than 50%, but the specific value is 2 Since the optimum conditions differ depending on the balance between the slip and quality of the next raw roll R, the thickness of the sheet, the permeability of the lotion agent, and the transferability, it varies within the above range.
Specifically, it is possible not only to change the coating amount on each side, but also to roughen the flexographic plate so that the number of lines of the flexographic plate is about 15 to 40 lines and the apex area ratio is about 20 to 40% so that the chemical solution does not scatter. By doing so, a dot pattern remains immediately after application, and an application part and an unapplication part can be instantaneously formed.

Therefore, according to the present embodiment, since the plate is a resin using the flexo format and is elastic, it can be adjusted by the printing pressure even if there is some unevenness on the sanitary thin paper. Wrinkles are less likely to enter the laminated continuous sheet S2 than when applied with a metal roll. On the other hand, by using a flexo format that applies flexographic printing, the coating amount can be stabilized even at high processing speeds, and a wide range of chemical viscosity can be stably applied with one roll. It becomes like this. Specifically, the lotion agent used as a chemical solution is applied at an application amount of 1.5 g to 5 g / m ² while the laminated continuous sheet S2 is set to 700 m / min or more, preferably at a speed of 900 m / min or more. Even in such a case, the laminated continuous sheet S2 can be wound up without being meandered and applied uniformly.

In addition, the base paper used in this embodiment is 1 ply, has a basis weight of 10 to 25 g / m ² , and a crepe rate of 10 to 30%. It is a sanitary thin paper having a paper strength of 100 to 300 cN / 25 mm and a wet paper strength of 50 to 150 cN / 25 mm.

  One or a plurality of the chemical solution applying means 53 of the present embodiment can be installed. When a plurality of chemical solution applying means 53 are installed, they may be arranged in the horizontal direction, the vertical direction, or the oblique direction, and these installation directions including the horizontal direction. May be arranged in combination. Since the holding angle is reduced when they are arranged in parallel in the horizontal direction, the processing speed can be increased, and when they are arranged in the vertical direction, the installation space can be reduced.

  The means (calendar means 52 and contact embossing means 54 in the example of FIG. 11) arranged before and after the chemical solution applying means 53 are preferably arranged close to each other. By doing so, when manufacturing a tissue paper product to which no chemical solution is applied, the laminated continuous sheet S2 is directly transferred from the front stage to the rear stage of the chemical solution applying unit 53, and the laminated continuous sheet S2 is not passed through the chemical solution applying unit 53. Since it only needs to flow, it is possible to easily switch the presence or absence of chemical application. For example, in the manufacturing equipment X1 for the secondary paper roll for tissue paper products shown in FIG. 11, when manufacturing the tissue paper products to which no chemical solution is applied, as shown by the two-dot chain line in FIG. It is only necessary to transfer directly from the means 52 to the contact embossing means 54 and to flow the laminated continuous sheet S2 without passing through the chemical solution applying means 53.

In addition, the following requirements are conceivable as the requirements of the accompanying chemical solution applying means 53.
In the two-roll flexo chemical solution application means, it is necessary to install a filter device for paper powder and air contained in the chemical solution circulating in the coating device such as a chemical solution tank. In the case of using the chemical solution applying means 53, it is not necessary to remove paper dust or the like, so that the load on the filtration device may be reduced. Furthermore, it may be necessary to control the temperature of the chemical solution within the coating apparatus such as the doctor chambers 61A and 61B to stabilize the viscosity of the chemical solution. However, a heater can be installed in the intermediate tank and piping connected to the doctor chambers 61A and 61B. . On the other hand, it is considered necessary to control the coating amount by the moisture content in the width direction of the laminated continuous sheet S2 during operation. For example, the moisture amount and variation in the width direction can always be checked using an infrared inspection machine or the like. .

(Medical solution)
About the chemical | medical solution to apply | coat, the viscosity of 1-700 mPa * s is desirable at 40 degreeC from a viewpoint of performing high-speed processing. If it is less than 1 mPa · s, the chemical solution is likely to be scattered on rolls such as anilox roll, printing plate roll, and gravure roll, and conversely if it is more than 700 mPa · s, it is difficult to control the amount applied to each roll or thin paper. Ingredients contain 70-90% polyol, 1-15% moisture, and 0.01-22% functional drug.

The polyol includes polyhydric alcohols such as glycerin, diglycerin, propylene glycol, 1,3-butylene glycol, polyethylene glycol, and derivatives thereof, and saccharides such as sorbitol, glucose, xylitol, maltose, maltitol, mannitol, and trehalose.
Functional agents include softeners, surfactants, inorganic and organic fine particle powders, oily components, and the like. Softeners and surfactants have the effect of imparting flexibility to the tissue and smoothing the surface, and anionic surfactants, cationic surfactants and zwitterionic surfactants are applied. Inorganic and organic fine particle powders have a smooth surface. The oil component has a function of improving lubricity, and higher alcohols such as liquid paraffin, cetanol, stearyl alcohol, and oleyl alcohol can be used.
In addition, as a functional agent, one of a hydrophilic polymer gelling agent, collagen, hydrolyzed collagen, hydrolyzed keratin, hydrolyzed silk, hyaluronic acid or a salt thereof, ceramide, etc. A moisturizing agent such as any combination can be added.
Deodorants such as flavors, emollients such as various natural extracts, vitamins, emulsifiers that stabilize compounding ingredients, antifoaming agents, antifungal agents, organic acids, etc. An agent can be appropriately blended. Furthermore, you may contain the antioxidant of vitamin C and vitamin E.
Of the above components, it is preferable to use a polyhydric alcohol such as glycerin or propylene glycol as a main component in order to stabilize the viscosity and coating amount of the chemical solution.
The temperature at the time of chemical solution application is preferably 30 ° C to 60 ° C, preferably 35 ° C to 55 ° C.

(Contact embossing means)
The production facility X1 for the secondary paper roll for tissue paper products can be provided with contact embossing means 54 for imparting contact embossing to the laminated continuous sheet S2. And the joining process for forming the contact embossing CE which is a line-shaped junction part which prevents delamination with respect to lamination | stacking continuous sheet S2 is performed by this contact embossing means 54. FIG.

Here, as shown in FIG. 13, the contact embossing means 54 includes a pressure drum 54B, which is a receiving roll, and a metal, hard roller 54A having fine convex portions 54C on the surface, with a predetermined pressure. The outer peripheral surfaces are in contact with each other while being rotatably installed. Then, with respect to the portion corresponding to the center in the width direction of the tissue paper product in the laminated continuous sheet S2, the laminated continuous sheet S2 is conveyed while sandwiching the laminated continuous sheet S2 between the convex portion 54C and the impression cylinder 54B that exist on each of the left and right. Thus, line-shaped contact embossing CE for preventing delamination along the continuous direction of the laminated continuous sheet S2 is applied to the laminated continuous sheet S2.
In addition, the winding means 56 mentioned above winds up the lamination | stacking continuous sheet S2 by making the surface on the side facing the roller 54A which performs this contact embossing CE into an outer peripheral side.

Thus, by providing the contact embossing CE, delamination of the laminated continuous sheet S2 formed by laminating a plurality of primary continuous sheets S1 is prevented. In addition, it is preferable that the contact embossing CE is formed so as to be positioned on both sides in the width direction of the tissue paper product so that the end portion of the tissue paper product is hardly delaminated.
The place where the contact embossing means 54 is installed is a stage after the chemical solution applying means 53 and a stage before the slit means 55.

Further, in this joining process, in the present embodiment, a metal and hard roller 54A having a fine convex portion 54C on the surface is used as a roller, but a line-shaped joint that prevents delamination from the laminated continuous sheet S2. For example, instead of the roller 54A, a roller having a fine needle-like member on the surface can be used as the roller.
Furthermore, the means for joining is not limited to the above example, and the tip shape of the convex portion may be a point, square, rectangular, circular, elliptical shape, etc. A tip having a slender linear shape or a thin and slanting linear shape may be used as the roller.
On the other hand, the arrangement of the protrusions may be equally spaced, but may not be staggered or evenly spaced. In addition to arranging the protrusions in a row and providing contact embossing continuously, It is also conceivable to arrange the parts in two or more rows. Then, a plurality of groups in which convex portions are arranged so as to provide a plurality of rows of contact embossing closely may be arranged to provide a plurality of contact embossing groups. In addition, as a joining process, you may join by other means, such as an ultrasonic wave, besides joining by applying a pressure mechanically as mentioned above.

(Primary continuous sheet)
The raw material pulp of primary continuous sheet S1 is not specifically limited, A suitable raw material pulp can be selected and used according to the use of tissue paper products. As raw material pulp, for example, wood pulp, non-wood pulp, synthetic pulp, waste paper pulp, and the like, more specifically, groundwood pulp (GP), stone ground pulp (SGP), refiner ground pulp (RGP), pressure type Mechanical pulp (MP), chemical mechanical pulp (CGP), semi-chemical pulp (such as ground pulp (PGW), thermomechanical pulp (TMP), chemithermomechanical pulp (CTMP), bleach chemithermomechanical pulp (BCTMP) Chemical pulp (SCP), kraft pulp (KP) such as hardwood bleached kraft pulp (LBKP), softwood bleached kraft pulp (NBKP), soda pulp (AP), sulfite pulp (SP), dissolved pulp (DP), etc. CP), nylon, rayon, polyester, polyvinyl alcohol Synthetic pulp made from (PVA) etc., deinked pulp (DIP), waste paper pulp such as waist pulp (WP), waste pulp (TP), cotton, flax, hemp, jute, manila hemp, ramie etc. One or several kinds of rag pulp, straw pulp, esparto pulp, bagasse pulp, bamboo pulp, kenaf pulp, and other auxiliary pulps such as bast pulp can be appropriately selected and used.

  In particular, the raw material pulp is preferably a blend of NBKP and LBKP. Waste paper pulp may be blended as appropriate, but it may be composed only of NBKP and LBKP in terms of texture and the like, and the blending ratio (JIS P 8120) in that case is NBKP: LBKP = 2: 8-8: 2 is good, and NBKP: LBKP = 4: 6-7: 3 is particularly desirable.

The primary continuous sheet S1 has a basis weight according to JIS P 8124 of 10 to 25 g / m ² , preferably 12 to 20 g / m ^2, and more preferably 13 to 16 g / m ² . When the basis weight is less than 10 g / m ² , it is preferable in terms of softness, but an appropriate strength cannot be ensured. On the other hand, when the basis weight exceeds 25 g / m ² , it becomes too hard and the touch is deteriorated.
Further, the paper thickness (measured with a Peacock manufactured by Ozaki Seisakusho) is 80 to 250 μm, preferably 100 to 200 μm, more preferably 130 to 180 μm with 2 plies.

  The primary continuous sheet S1 preferably has a crepe rate of 10 to 30%, more preferably 12 to 25%, and particularly preferably 13 to 20%. When the crepe rate is less than 10%, it becomes a tissue paper product that is easy to break during processing and has little stretch and is not stiff. When the crepe rate is 30% or more, it becomes difficult to control the tension of the sheet during processing, and it becomes a tissue paper product in which wrinkles are generated or the touch is poor.

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

  These paper strengths can be adjusted by a known method. For example, a paper strength agent is internally added (added to a stage before the dryer part, for example, pulp slurry), and pulp freeness is reduced (for example, about 30 to 40 ml is reduced). The method of increasing the NBKP compounding ratio (for example, 50% or more) can be appropriately combined.

  As the dry paper strength agent, 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 agent, polyamide polyamine epichlorohydrin resin, urea resin, acid colloid / melamine resin, thermal crosslinkability imparting PAM and the like can be used. When the wet paper strength agent is internally added, the addition amount can be about 5 to 20 kg / t in weight ratio to the pulp slurry. In addition, when the dry paper strength agent is internally added, the addition amount can be about 0.5 to 1.0 kg / t by weight ratio to the pulp slurry.

[Production process of secondary roll for tissue paper products]
Next, an example of the manufacturing process of the secondary paper roll for tissue paper products according to the present invention will be described. The manufacturing process of the secondary paper roll for tissue paper products which concerns on this form can be performed using the manufacturing equipment X1 of the secondary raw material roll for tissue paper products mentioned above, for example.
As shown in FIG. 11, in the manufacturing process of the secondary paper roll for tissue paper products according to the present invention, the primary continuous sheet S <b> 1 fed out from the plurality of primary paper rolls by the ply means 51 along the continuous direction. The laminated continuous sheet S2 is laminated (laminating step), a chemical solution is applied to the laminated continuous sheet S2 by a pair of chemical solution applying means 53 (chemical solution applying step), and the laminated continuous sheet S2 is made of tissue paper by the slit means 55. The product is slit so as to have a product width or a multiple of the product width (slit process), and then the laminated continuous sheet S2 slit in the slit process is coaxially wound so that the product width of the tissue paper or a plurality of the multiple widths of the tissue paper is obtained. The secondary web roll R is formed by the winding means 56.

  In addition, in the manufacturing process of the secondary raw material roll for tissue paper products which concerns on this form, similarly to the manufacturing equipment X1 of the secondary raw material roll for tissue paper products mentioned above, it is a back | latter stage and a chemical | medical solution application | coating process A smoothing step of smoothing the laminated continuous sheet S2 with a pair of calendar means 52 can be provided in the preceding stage. In addition, a contact embossing step for performing line-shaped contact embossing for preventing delamination by the contact embossing means 54 on the laminated continuous sheet S2 can be provided after the chemical solution applying step and before the slitting step.

  In the manufacturing equipment or manufacturing process of the secondary paper roll for tissue paper products according to the present embodiment, the processing speed is 100 to 1100 m / min, preferably 300 to 1050 m / min, more preferably 450 to 1000 m. / Min. When it exceeds 1200 m / min, the frequency of the laminated continuous sheet S2 is increased, and in the chemical solution application process, uneven application of the chemical solution occurs due to non-uniformity in the width direction of the lotion agent on the surface of the printing plate roll or anilox roll. There is a possibility that lotion will be scattered more.

In the manufacturing equipment or manufacturing process of the secondary raw material roll for sanitary thin paper products according to the present embodiment, when the chemical solution is applied to both sides of the laminated continuous sheet S2, the total chemical application amount on both sides is 1.5 to It is a 5.0 g / m ^2, preferably is a 2.0 to 4.5 g / m ^2, and more preferably are 2.5~4.0g / m ^2. If it exceeds 5.0 g / m ² , the paper may be cut due to a decrease in paper strength or elongation, winding may occur when winding with a winding drum, or the quality may be too sticky. . If it is less than 1.5 g / m ² , the difference from the uncoated surface such as smoothness and moistness cannot be felt.

In addition, since there will be a difference between the front and back if there is a large difference in the coating amount on both coated surfaces, the coating amount on one side is preferably 20% or more and less than 50% of the whole. Since both coated surfaces are in contact with each other during the time (average between 8 hours and 24 hours) after being stored in the ply material after coating, the amount of both chemicals is gradually equalized. The front / back difference is improved.
When the chemical solution is applied only to one side of the laminated continuous sheet, the chemical solution is preferably applied to S1 because it is difficult to cause winding deviation. The coating amount is 1.5 to 5.0 g / m ² , preferably 2.0 to 4.5 g / m ² , more preferably 2.5 to 4.0 g / m ² .

[Multi-stand type inter folder]
A large number of secondary web rolls R manufactured in the above-described manufacturing equipment and manufacturing process for secondary paper rolls for tissue paper products are set in a multi-stand type interfolder. A tissue paper bundle is manufactured by unfolding and folding the next continuous sheet. Hereinafter, an example of the multi-stand type interfolder will be described.

  2 and 3 show an example of a 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. The secondary raw rolls R, R... Are set side by side in a direction (the horizontal direction in FIG. 2 and the front-to-back direction in FIG. 3) perpendicular to the illustrated plane. Each secondary web roll R has slits in the product width of the tissue paper in the manufacturing equipment and manufacturing process of the secondary paper roll for tissue paper products described above. Then it is wound and set in double width.

  The continuous belt-like secondary continuous sheets 3 </ b> A and 3 </ b> B unwound from the secondary raw roll R are guided by guide means such as guide rollers G <b> 1 and G <b> 1 and sent to the folding mechanism unit 20. Moreover, the folding mechanism part 20 is provided with the folding plate group 21 in which the required number of folding 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 known mechanism, for example, from US Pat. As shown in FIG. 5, this type of folding mechanism folds each continuous secondary continuous sheet 3A, 3B... In the Z-shape and is adjacent to the adjacent secondary continuous sheet 3A, 3B. Stack the ends together.

  FIGS. 7 to 10 show in detail the portions of the folding mechanism 20 that are particularly related to the folded plate P. FIG. In the folding mechanism unit 20, a pair of continuous secondary continuous sheets 3A and 3B are guided for each folded plate P. At this time, the continuous secondary continuous sheets 3A and 3B are guided by the guide round bar members G3 and G3 while being shifted in position so that the side end portions do not overlap each other.

  A continuous secondary continuous sheet that is overlapped on the lower side when guided by the folded plate P is defined as a first continuous secondary continuous sheet 3A, and a continuous secondary continuous sheet that is overlapped on the upper side is a second continuous sheet. As shown in FIGS. 5 and 8, these continuous secondary sheets 3A and 3B are second continuous secondary sheets 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. 5 and 10, the side end portion 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. 2, the laminated band 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 subsequent cutting means 41, 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. 6A. 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 paper 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. 6B 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.

Next, other forms of manufacturing equipment and manufacturing process of the secondary paper roll for tissue paper products will be described.
[Secondary fabric roll production equipment and production process for tissue paper products]
That is, a specific structure of the chemical solution applying unit applied in the above embodiment will be described in detail below.
The chemical supply unit 100 having a structure in which only one of the two chemical application units 53A and 53B by the doctor chamber type flexographic printing method constituting the chemical application unit 53 will be described in detail below. Needless to say, the other of 53B has the same structure. In addition, let the horizontal direction of the chemical | medical solution supply apparatus 100 shown in FIG. 14 be an X-axis direction, and let an up-down direction be a Y-axis direction.

That is, as shown in FIGS. 14 and 15, the chemical solution supply apparatus 100 is extruded from the storage tank 110 that stores the chemical solution L, the extrusion unit 120 that extrudes the chemical solution L in the storage tank 110, and the extrusion unit 120. The doctor chamber 130 for storing the chemical liquid L, the drawing portion 140 for drawing a part of the chemical liquid L stored in the doctor chamber 130 into the tank 110, and the chemical liquid L supplied from the doctor chamber 130 are transferred to the surface of the laminated continuous sheet S2. The chemical transfer unit 150 is configured to include a rotating unit 160 that wraps and rotates the laminated continuous sheet S2 around the circumferential surface, and the like.
Therefore, the above-described doctor chambers 61A and 61B are the doctor chamber 130 in the present embodiment, and the above-described impression cylinders 65A and 65B are the rotating unit 160 in the present embodiment.

  The storage tank 110 is a tank that stores the chemical liquid L therein, and an extrusion hose 121 of the extrusion unit 120 described later and a drawing hose 141 of the drawing unit 140 are inserted into the liquid layer.

The extruding unit 120 includes, for example, an extrusion hose 121 inserted into the storage tank 110, a supply pump 122 that extrudes the chemical liquid L stored in the storage tank 110 and supplies the chemical liquid L to the doctor chamber 130, and the chemical liquid L generated by the supply pump 122. And an adjustment valve 123 for adjusting the extrusion amount (flow rate).
The extrusion hose 121 is a hose having one end inserted into the storage tank 110 and the other end connected to the introduction part 132 of the doctor chamber 130, and functions as a flow path for transporting the chemical liquid L in the storage tank 110. The supply pump 122 is attached to the extrusion hose 121 and is driven by a drive motor (not shown) to pressurize and feed the chemical L in the storage tank 110 to the doctor chamber 130. The adjustment valve 123 adjusts the flow rate of the chemical liquid L pushed out by the supply pump 122 by opening and closing the valve.

For example, the pull-in unit 140 includes a pull-in hose 141 inserted into the storage tank 110 and a suction pump 142 that pulls the chemical L into the storage tank 110.
The draw-in hose 141 is a hose having one end inserted into the storage tank 110 and the other end connected to a lead-out part 133 of a doctor chamber 130 described later, and transports the chemical L derived from the lead-out part 133 to the storage tank 110. Functions as a flow path.
The suction pump 142 is attached to the drawing hose 141 and is driven by a drive motor (not shown) to suck the chemical liquid L led out from the lead-out unit 133 and discharge it to the storage tank 110 (outside).

  Therefore, in the present embodiment, the supply pump that applies the chemical liquid to the doctor chambers 61A and 61B described above is the supply pump 122 that extrudes the chemical liquid L stored in the storage tank 110 and supplies it to the doctor chamber 130. In this embodiment, the discharge supply pump for returning the chemical solution from the doctor chambers 61A and 61B is the suction pump 142 that draws the chemical solution L into the storage tank 110.

  The doctor chamber 130 is disposed adjacent to an anilox roll 151 to be described later, and includes a main body part 131 that stores the chemical L, an introduction part 132 that connects the extruding part 120 and the main body part 131, a retracting part 140, and a main body part 131. And a derivation unit 133 that connects the two.

The main body portion 131 is a main body portion of the doctor chamber 130 and includes a storage portion 131a and blades 131b and 131c.
The storage part 131 a is open at the end on the anilox roll 151 side, is connected to the introduction part 132 and the lead-out part 133, and supplies the chemical solution L stored inside to the anilox roll 151. A part of the chemical liquid L introduced into the storage part 131a from the introduction part 132 is led out through the lead-out part 133 so that the supply amount to the anilox roll 151 is constant. Has been.
Therefore, the above-described anilox rolls 63A and 63B are anilox rolls 151 in the present embodiment.
The blades 131b and 131c are provided so as to come into contact with the anilox roll 151, and perform the throttling of the chemical liquid L in a state of being pressed against the anilox roll 151.

  The introduction part 132 is a tubular joint that has one end connected to the main body part 131 and the other end connected to the extrusion hose 121 of the extrusion part 120, and connects the extrusion part 120 and the main body part 131. The chemical liquid L thus made can be introduced into the storage part 131 a of the main body part 131.

As shown in FIGS. 14 and 15, the lead-out part 133 is configured to include a joint 133a, a hole 133b, and a tube 133c.
The joint 133 a is a tubular joint that has one end connected to the main body portion 131 and the other end connected to the drawing hose 141 of the drawing portion 140 to connect the drawing portion 140 and the main body portion 131.

The hole 133b is an opening formed on the upper surface of the joint 133a and having a predetermined diameter.
That is, since the hole 133b is provided in the joint 133a, the chemical liquid L in the joint 133a comes into contact with the outside air. Therefore, even when the chemical liquid L is circulated by discharging a part of the chemical liquid L introduced from the introduction part 132 (derived from the outlet part 133) and circulating the chemical liquid L, the hole 133b causes the suction of the chemical liquid L. Since the chemical liquid L comes into contact with the outside air and the internal pressure can be brought close to the external pressure, fluctuations in the internal pressure in the doctor chamber 130 can be suppressed.
The hole 133b may be formed on the upper surface of the main body 131 so as to communicate with the storage portion 131a, for example, as long as the internal pressure fluctuation in the doctor chamber 130 is suppressed.

The tube 133c is a transparent or translucent tube-like member having a lower end connected to the hole 133b and extending upward. Therefore, when discharging a part of the chemical liquid L introduced from the introduction part 132 and circulating the chemical liquid L, it is visually confirmed whether the chemical liquid L flows into the tube 133c through the hole 133b. Can do.
That is, when the inflow into the tube 133c is confirmed, the amount of the chemical liquid L stored in the storage portion 131a is excessive (the chemical liquid L is in an oversupply state with respect to the anilox roll 151). ) Therefore, the user who has visually confirmed the excessive state can solve the excessive state by, for example, adjusting the extrusion amount (flow rate) of the chemical liquid L by operating the adjustment valve 123. .
Since the tube 133c is hollow and the upper end side is in contact with the outside air, the operation of the hole 133b is not offset.

The chemical transfer unit 150 includes, for example, an anilox roll 151 to which the chemical solution L is supplied from the doctor chamber 130, and a printing plate roll 152 provided between the anilox roll 151 and a rotation unit 160 described later. The
That is, the above-described printing plate rolls 64A and 64B are used as the printing plate roll 152 in this embodiment.

The anilox roll 151 is provided so as to come into contact with the blades 131b and 131c of the doctor chamber 130, and is configured such that the chemical liquid L supplied from the opening of the storage portion 131a of the doctor chamber 130 is adsorbed on the peripheral surface.
Further, since the anilox roll 151 has a cylindrical shape and is configured to be rotatable about an axis orthogonal to the XY plane, the chemical liquid L adsorbed on the peripheral surface as described above is rotated by the printing plate roll. 152 can be transferred.

The printing plate roll 152 has a cylindrical shape whose peripheral surface is made of a rubber material, and the peripheral surfaces (points P1 and P2 shown in FIG. 14) are wound around the anilox roll 151 and the rotation unit 160 (the periphery of the left and right ends). The continuous sheet S2) is provided so as to contact the peripheral surface of the continuous sheet S2), and is configured to be rotatable around an axis orthogonal to the XY plane.
Therefore, the plate roll 152 rotates in the r2 direction when the rotating portion 160 that contacts the left end rotates in the r1 direction, and rotates the anilox roll 151 that contacts the right end in the r1 direction. That is, the printing plate roll 152 can acquire the chemical liquid L adsorbed on the peripheral surface of the anilox roll 151 at the point P2, transport it to the point P1 by rotation in the r2 direction, and transfer it to the laminated continuous sheet S2. it can.
Therefore, even if the chemical liquid L adsorbed by the anilox roll 151 remains in a layered manner on the peripheral surface of the anilox roll 151, the chemical liquid L is transferred to the peripheral surface of the printing plate roll 152, so that the chemical liquid is applied to the laminated continuous sheet S2. L can be transferred uniformly.

The rotation unit 160 is provided adjacent to the printing plate roll 152, and rotates around an axis orthogonal to the XY plane (for example, r1 direction in FIG. 14) when a driving force is applied from a motor (not shown) or the like. It is a cylindrical member that is configured to be capable of gripping the laminated continuous sheet S2 on the peripheral surface. Therefore, the rotating unit 160 rotates in the r1 direction so as to wind the supplied laminated continuous sheet S2 around the peripheral surface and rotate the printing plate roll 152 and the anilox roll 151 to convey them to the point P1 position. At the time, the chemical liquid L can be transferred from the printing plate roll 152.
In addition, although the rotation direction of the rotation unit 160 is the r1 direction in FIG. 14, the rotation unit 160 may of course be configured to rotate in the r2 direction. In this case, the anilox roll 151 and the printing plate roll 152 rotate in the directions opposite to those in FIG. 14 (that is, the anilox roll 151: r2 direction, the printing plate roll 152: r1 direction).

  Next, the circulation operation of the chemical liquid L by the chemical liquid supply apparatus 100 according to the present embodiment will be described.

First, the supply pump 122 is driven, the chemical liquid L is extruded from the storage tank 110, and supplied to the storage part 131 a of the main body part 131 through the extrusion hose 121 and the introduction part 132 of the doctor chamber 130.
Next, the rotation unit 160 is rotated to supply the chemical solution L in the storage unit 131a to the anilox roll 151, and the chemical solution L is transferred onto the laminated continuous sheet S2 via the printing plate roll 152.
In addition, the suction pump 142 is driven, and a part of the chemical liquid L in the storage part 131 a is discharged and circulated toward the storage tank 110 through the outlet part 133. At this time, the internal pressure fluctuation in the doctor chamber 130 is suppressed by the outside air contact through the hole 133b in the joint 133a of the outlet 133.
Further, when the inflow of the chemical liquid L into the tube 133c is confirmed during the circulation, the adjustment valve 123 is operated to adjust the flow rate of the chemical liquid L.

  As described above, according to the chemical liquid supply apparatus 100 according to the present embodiment, the storage tank 110 that stores the chemical liquid L, and the extrusion liquid 121 stored in the main body 131 of the doctor chamber 130 are used to store the chemical liquid L stored in the storage tank 110. And a suction pump 142 that sucks the chemical liquid L stored in the main body 131 of the doctor chamber 130 and discharges it to the storage tank 110 (external) via the pull-in hose 141. The chamber 130 connects the extrusion hose 121 and the main body 131, connects the introduction portion 132 for introducing the chemical L supplied by the supply pump 122 into the main body 131, and connects the drawing hose 141 and the main body 131. A guide provided with a tubular joint 133a for extracting a part of the chemical liquid L introduced into the main body 131. It includes a section 133, and configured with a hole 133b on the upper surface of the joint 133a of the outlet portion 133.

That is, in the chemical solution supply apparatus 100, the hole 133b is provided on the upper surface of the joint 133a of the outlet portion 133. Therefore, when a part of the chemical liquid L in the main body 131 is discharged using the suction pump 142, the chemical liquid L comes into contact with the outside air through the hole 133 b, and therefore, the inside of the doctor chamber 130 caused by the operation of the suction pump 142. Internal pressure fluctuation can be suppressed. Further, in the present invention, since the suction pump 142 is used when part of the chemical liquid L is discharged, there is no need for a flow path for the natural dropping of the chemical liquid L, and the installation position of the tank 110 is also a special doctor chamber 130. It is not limited to the upper part or the like.
Therefore, it can be said that the chemical solution supply device 100 is a chemical solution supply device 100 that can suppress the internal pressure fluctuation in the doctor chamber 130 when sucking out the chemical solution L from the doctor chamber 130 and can be installed in a space-saving as much as possible.

  The doctor chamber 130 includes a transparent or translucent tube 133c having a lower end connected to the hole 133b and extending upward.

That is, when part of the chemical liquid L introduced from the introduction part 132 is discharged and the chemical liquid L is circulated, it is visually confirmed whether the chemical liquid L flows into the tube 133c through the hole 133b. Can do. Therefore, when the inflow into the tube 133c is confirmed, the amount of the chemical liquid L stored in the storage portion 131a is excessive (the chemical liquid L is in an oversupply state with respect to the anilox roll 151). ) Therefore, the user who has visually confirmed the excessive state can solve the excessive state by, for example, operating the adjustment valve 123 to adjust the flow rate of the chemical liquid L.
Further, by providing the tube 133c with the upper end (free end) facing downward, it is possible to prevent foreign matters such as paper dust from entering the hole 133b.

[Manufacturing equipment and manufacturing process of secondary roll for third tissue paper product]
Next, the chemical solution supply apparatus 200 of the present embodiment will be described with reference to FIG.
In the chemical solution supply device 100 of the second embodiment, the chemical solution L is oversupplied to the anilox roll 151 by visually confirming the inflow of the chemical solution L into the tube 133c connected to the hole 133b. However, the chemical solution supply apparatus 200 according to the present embodiment is configured to automatically determine whether or not the state has been reached and to notify the user of the determination result.
In the following description of the chemical solution supply apparatus 200, differences from the chemical solution supply apparatus 100 of the second embodiment will be mainly described, and the same components are denoted by the same reference numerals and description thereof will be omitted.

  As shown in FIG. 16, the lead-out part 233 of the present embodiment includes a joint 133a, a hole 133b, a cylindrical part 133d provided above the hole 133b, and a sensor part attached to the cylindrical part 133d. 133e.

  The cylindrical portion 133d is a cylindrical member that has a lower end fixedly connected to the peripheral surface of the hole 133b by welding or the like and extends upward.

The sensor unit 133e includes a sensor 133f provided in the cylindrical portion 133d, and a notification unit 133g attached to the sensor 133f and performing notification in conjunction with detection of the sensor 133f.
The sensor 133f 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 the reflected light from the detected object, and reflects the reflected light from the light receiving element. Based on the amount of received light, the sensor detects whether the height of the chemical liquid L flowing into the cylindrical portion 133d has reached the height position (y1 shown in FIG. 16) where the sensor 133f is provided.
For example, the notification unit 133g is a speaker or the like, and when the sensor 133f detects that the height of the chemical liquid L flowing into the cylindrical portion 133d has reached the height position where the sensor 133f is provided, The user is notified by voice.

That is, when part of the chemical liquid L introduced from the introduction part 132 is discharged and the chemical liquid L is circulated, the sensor 133f determines whether or not the chemical liquid L flowing into the cylindrical part 133d has reached the height position. By detecting, it is possible to determine whether or not the amount of the chemical liquid L stored in the storage unit 131a is excessive (the chemical liquid L is in an excessive supply state with respect to the anilox roll 151). And, when the excessive state is reached, the user can know the fact by the notification unit 133g, for example, by operating the adjustment valve 123 to adjust the extrusion amount (flow rate) of the chemical liquid L, It becomes possible to eliminate the excessive state.
Since the cylindrical portion 133d is hollow and the upper end side is in contact with the outside air, the action of the hole 133b is not offset.

  Next, the circulation operation of the chemical liquid L by the chemical liquid supply apparatus 200 according to the present embodiment will be described.

First, the supply pump 122 is driven, the chemical liquid L is extruded from the storage tank 110, and supplied to the storage part 131 a of the main body part 131 through the extrusion hose 121 and the introduction part 132 of the doctor chamber 130.
Next, the rotation unit 160 is rotated to supply the chemical solution L in the storage unit 131a to the anilox roll 151, and the chemical solution L is transferred onto the laminated continuous sheet S2 via the printing plate roll 152.
In addition, the suction pump 142 is driven, and a part of the chemical liquid L in the storage part 131 a is discharged and circulated toward the storage tank 110 via the outlet part 233. At this time, fluctuations in the internal pressure in the doctor chamber 130 are suppressed in the joint 133a of the lead-out part 233 through outside air contact in the hole part 133b.
Further, during the circulation, the sensor 133f detects that the height of the chemical liquid L flowing into the cylindrical portion 133d has reached the height position where the sensor 133f is provided, and the notification portion 133g notifies the user. When the effect is notified, the adjustment valve 123 is operated to adjust the flow rate of the chemical liquid L.

  As described above, according to the chemical solution supply apparatus 200 according to the present embodiment, the doctor chamber 130 has a cylindrical cylindrical portion 133d that has a lower end connected to the peripheral surface of the hole 133b and extends upward, and a cylindrical shape. A sensor 133f that detects whether the height of the chemical liquid L that is provided in the portion 133d and flows into the cylindrical portion 133d has reached a predetermined height position (a height position where the sensor 133f is provided), and a sensor 133f Thus, a notification unit 133g is configured to notify when it is detected that the height of the chemical liquid L flowing into the cylindrical portion 133d has reached the predetermined height position.

  That is, according to the chemical solution supply device 200, the same effect as the chemical solution supply device 100 is exhibited, and when the chemical solution L is circulated, the chemical solution L is applied to the anilox roll 151 by the sensor 133f and the notification unit 133g. It is possible to automatically determine whether or not the battery has reached an oversupply state, and to notify the user of the determination result, so that the burden on the user himself to perform the state determination is reduced.

[Fourth raw material roll production equipment and production process for tissue paper products]
Next, the chemical solution supply apparatus 300 of this embodiment will be described with reference to FIG.
In the chemical liquid supply apparatus 100 of the second embodiment and the chemical liquid supply apparatus 200 of the third embodiment, the opening amount of the hole 133b is configured to be a fixed value, but in the chemical liquid supply apparatus 300 of the present embodiment, The opening amount can be adjusted.
In the following description of the chemical liquid supply apparatus 300, differences from the chemical liquid supply apparatus 100 of the second embodiment and the chemical liquid supply apparatus 200 of the third embodiment will be mainly described. Reference numerals are assigned and description is omitted.

  As shown in FIG. 17, the lead-out part 333 of the present embodiment includes a joint 133a, a cylindrical part 133d, a sensor part 133e, and an adjustment part 133h attached to the cylindrical part 133d. . The adjusting unit 133h is, for example, a needle valve, and includes a hole 133j as an opening formed on the upper surface of the joint 133a, and a valve main body 133i that adjusts the opening amount of the hole 133j.

The hole 133j has a shape in which an opening having a predetermined diameter is surrounded by an orifice.
The valve body 133i is disposed above the opening of the hole 133j, and includes a needle shaft (not shown) whose tip is tapered and can be moved up and down. The needle shaft is moved up and down to change the orifice of the hole 133j. It is comprised so that the opening amount of the hole 133j can be adjusted according to the opening degree at the time of contacting.

That is, since the opening amount of the hole 133j can be adjusted by the adjusting unit 133h, when the chemical liquid L is circulated, the opening amount of the hole 133j is changed according to the amount of fluctuation of the internal pressure in the doctor chamber 131. Can be adjusted appropriately. Therefore, for example, when the sensor part 133e detects that the height of the chemical liquid L flowing into the cylindrical part 133d has reached the height position where the sensor 133f is provided, the adjustment liquid 123 is operated to operate the chemical liquid L. In addition to coping with adjusting the amount of extrusion, the adjustment of the opening amount of the hole portion 133j by the adjusting portion 133h increases the air bleeding ability by the hole portion 133j (expands the contact area with the outside air). It is also possible to take measures to suppress the internal pressure fluctuation in the doctor chamber 130.
That is, by suppressing the internal pressure fluctuation, it is possible to suitably prevent ejection of the chemical liquid L from the doctor chamber 130 caused by the internal pressure fluctuation, suction of the chemical liquid L on the anilox roll 151 to the doctor chamber 130 side, and the like. Circulation of the chemical liquid L is promoted.

  Next, the circulation operation of the chemical liquid L by the chemical liquid supply apparatus 300 according to the present embodiment will be described.

First, the supply pump 122 is driven, the chemical liquid L is extruded from the storage tank 110, and supplied to the storage part 131 a of the main body part 131 through the extrusion hose 121 and the introduction part 132 of the doctor chamber 130.
Next, the rotation unit 160 is rotated to supply the chemical solution L in the storage unit 131a to the anilox roll 151, and the chemical solution L is transferred onto the laminated continuous sheet S2 via the printing plate roll 152.
In addition, the suction pump 142 is driven, and a part of the chemical L in the storage part 131a is discharged toward the storage tank 110 through the lead-out part 333 and circulated. During the circulation, the sensor 133f detects that the height of the chemical liquid L flowing into the cylindrical portion 133d has reached the height position where the sensor 133f is provided, and the notification unit 133g notifies the user. In such a case, it can be dealt with by operating the adjusting valve 123 or adjusting the opening amount of the hole 133j by the adjusting portion 133h.

  As described above, according to the chemical solution supply apparatus 300 according to the present embodiment, the doctor chamber 130 includes the adjustment unit 133h that adjusts the opening amount of the hole 133j.

  That is, according to the chemical solution supply device 300, the same effect as the chemical solution supply device 100 is exhibited, and the opening amount of the hole 133j can be adjusted by the adjusting unit 133h. When the pressure is circulated, the internal pressure fluctuation in the doctor chamber 130 can be more suitably suppressed by appropriately adjusting the opening amount of the hole 133j in accordance with the internal pressure fluctuation amount in the doctor chamber 131.

  On the other hand, in the chemical solution supply apparatus of each of the above embodiments, the doctor chamber 130 has a structure including only one introduction portion 132 connected to the extrusion hose 121 and one introduction portion 132 connected to the extrusion hose 121. For example, FIG. It is good also as a structure like each example shown in.

  For example, in FIG. 18A, the doctor chamber 130 in the width direction D near the left and right ends of the doctor chamber 130 formed with a wide rectangular shape along the anilox roll 151 that is formed wide and rotates around the rotation axis R0. It is set as the structure which has the introduction part 132 connected to the extrusion hose 121 in each location. And it is also set as the structure where the one lead-out part 133 connected with the drawing hose 141 exists in the center part of this doctor chamber 130. FIG.

  That is, in the example shown in FIG. 18 (A), the two extrusion hoses 121 are connected to the two introduction portions 132, respectively, and the chemical solution L is supplied from the vicinity of the left and right ends of the doctor chamber 130. The fresh chemical solution L can be supplied into the doctor chamber 130 on average, and the remaining chemical solution L is led out from the doctor chamber 130 from the lead-out portion 133 at the center.

  In FIG. 18B, the doctor chamber 130 is formed in a wide rectangular shape and is formed in a wide rectangular shape along the anilox roll 151 that rotates about the rotation axis R0. It is set as the structure which has the introduction part 132 connected to the extrusion hose 121 in the location and the location of a center part, respectively. And it is also set as the structure where the two derivation | leading-out parts 133 connected to the drawing hose 141 exist in the location near the right-and-left of the width direction D of this doctor chamber 130, respectively.

  That is, in the example shown in FIG. 18B, two lead-out parts 133 are arranged between the three introduction parts 132, respectively, and the three extrusion hoses 121 each have three introduction parts 132. By supplying the chemical liquid L from the vicinity of the left and right ends and the center of the doctor chamber 130, the fresh chemical liquid L from the storage tank 110 can be supplied into the doctor chamber 130 on the average, and the two outlets 133 are further connected. The excess chemical solution L is led out from the doctor chamber 130.

  On the other hand, in FIG. 18C, the doctor chamber 130 has an equal interval along the width direction D in which the outer frame is formed in a wide rectangular shape along the anilox roll 151 that is formed wide and rotates around the rotation axis R0. And it is set as the structure which has the introducing | transducing part 132 connected to the extrusion hose 121 in the several places near the upper side of a figure, respectively. And it is also set as the structure where the several extraction part 133 connected to the drawing hose 141 exists in the location near the lower side of the figure of the doctor chamber 130 adjacent to each introduction part 132, respectively.

  That is, in the example illustrated in FIG. 18C, the chemical liquid L is supplied from the extrusion hose 121 to the plurality of introduction portions 132 arranged along the width direction D of the doctor chamber 130, and each of the introduction portions 132 is provided. The surplus chemical liquid L is led out from the doctor chamber 130 from a plurality of the outlets 133 adjacent to each other. Therefore, also in this example, the fresh chemical liquid L from the storage tank 110 can be supplied into the doctor chamber 130 on average, and the surplus chemical liquid L from the derivation unit 133 is led out from the doctor chamber 130.

The scope of the present invention is not limited to the above embodiment, and various improvements and design changes may be made without departing from the spirit of the present invention.
For example, in the chemical solution supply apparatus 100, when the tube 133c is not provided, an air filter may be installed on the upper portion of the hole 133b so as to prevent foreign matters such as paper dust from entering the hole 133b. . Further, the hole 133b may be provided on the side surface of the main body 131 as long as it is above the liquid level of the chemical liquid L in the reservoir 131a.

  The present invention can be applied to the production of a secondary roll for tissue paper products used in a multi-stand type interfolder.

51... Ply means (lamination process)
52 ... Calendar means (smoothing process)
53 ... Chemical solution application means (chemical solution application step)
53A: Chemical solution application unit 53B ... Chemical solution application unit 54: Contact embossing means (contact embossing process)
54A ... Roll 55 ... Slit means (slit process)
56 ... Winding means (winding process)
S1 ... primary continuous sheet S2 ... laminated continuous sheet JR ... primary raw roll R ... secondary raw roll

Claims (3)

Producing a plurality of secondary web rolls for setting in the multi-stand type interfolder from the primary web roll;
Set the secondary web roll in the multi-stand type interfolder, feed the secondary continuous sheet from the set secondary web roll, and fold it so that the side edges of the adjacent secondary continuous sheets are crossed together Laminating and producing a laminated strip,
Cutting the laminated strip, having a perforation on the upper surface, and opening the opening by breaking the perforation, and storing the opening in a storage box covered with a film having a slit. ,
When the uppermost tissue paper is pulled out from the slit, the next tissue paper is drawn out .
The process of manufacturing the said secondary raw fabric roll,
A lamination step of the laminated continuous sheet basis weight fed from a plurality of primary source roll is stacked along the primary continuous sheet of 10 to 25 g / m ² to the continuous direction,
70 to 90% by mass of moisture-retaining polyol, 1 to 15% by mass of moisture, 0.01 to 22% by mass of functional chemicals, and 1 to 700 mPa · s of chemical solution at 40 ° C. with respect to the laminated continuous sheet. A chemical solution application process to be applied;
A slitting process for slitting the laminated continuous sheet so as to be a product width of tissue paper or a multiple of the width,
A bonding step for forming a line-shaped bonding portion for preventing delamination for the laminated continuous sheet performed between the chemical solution coating step and the slit step;
Winding the slits each laminated continuous sheet coaxially to form a plurality of secondary rolls of tissue paper product width or multiple times the width simultaneously,
The chemical solution application step is a doctor chamber-type flexographic printing method in which a chemical solution is applied by a chemical solution application portion having a number of flexo resin plates of 10 to 60 lines , and each of the surfaces of the laminated continuous sheet A method for producing a tissue paper product, wherein a chemical solution is applied in a total amount of 1.5 to 5.0 g / m ² on both sides . Between the chemical solution application step and the slit step, a lamination step is provided between the receiving roll and the roller, and a joining step for forming a line-shaped joining portion that prevents delamination on the lamination continuous sheet is provided,
The chemical solution applying step is a step of applying a chemical solution by at least two chemical solution applying units by a doctor chamber type flexographic printing method, where one chemical solution applying unit is located on the sheet side in contact with the roller, and the other chemical solution 2. The tissue paper product according to claim 1, wherein the applying part is located on the other sheet side, and an application amount of one chemical solution applying part is made smaller than an application amount of the other chemical solution applying part. Method. 2. A lotion agent, which is a chemical solution, is applied at a coating amount of 2.0 to 4.5 g / m ^{2 in} total on both sides while conveying a laminated continuous sheet at a speed of 900 m / min or more. Or the manufacturing method of the tissue paper product of Claim 2.

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