JP2018192413A - Coating device and device for manufacturing sanitary article - Google Patents

Abstract

To provide a coating device that facilitates adjustment of an amount of application while saving a space.SOLUTION: A coating device includes: a coating agent supply part 551 for supplying a coating agent; a lip head 552 for applying the coating agent supplied from the coating agent supply part 551 to a belt-like sheet W to be coated; and a contact member 554 having a contact surface that moves in accordance with a transportation speed of the sheet W to be coated and comes into contact with the sheet W to be coated. The contact member 554 includes a number of communication holes for communicating the contact surface to a rear surface on a rear side of the contact surface. The lip head 552 is disposed on a rear surface side of the contact member 554 and coats the coating agent to the sheet W to be coated that moves on a contact surface side, through the communication holes from the rear surface side.SELECTED DRAWING: Figure 4

Description

  The present application relates to a coating apparatus for applying a liquid agent, and an apparatus for manufacturing a sanitary article from a papermaking body on which the liquid agent is applied by the coating apparatus.

  In the process of manufacturing sanitary products such as tissue paper and paper towels, a liquid agent such as a moisturizing agent or a fragrance is sometimes applied to the belt-like base paper to be conveyed. Conventionally, a gravure method is known as one method for applying a liquid agent to such a base paper (see, for example, Patent Document 1).

  In the gravure method, an object to be coated is passed between a gravure roll in which a plate surface (concave portion) is engraved on a peripheral surface and a backup roll arranged opposite to the gravure roll, and the gravure roll is transferred to the object to be coated. This is a method for transferring a liquid agent. In general, in such a gravure coating, the coating amount of the liquid agent (the thickness of the coating film) is changed by changing the rotation speed of the gravure roll.

Japanese Patent No.4676564

  However, the coating amount may not change linearly with respect to the rotation speed of the gravure roll. For this reason, there is a problem that it is difficult to adjust the coating amount in the gravure coating method. In addition, since the gravure roll and the backup roll are opposed to each other with the object to be coated interposed therebetween, there is a problem that it is difficult to save the space of the apparatus.

  This case has been developed in view of the above-described problems, and an object thereof is to facilitate the adjustment of the coating amount and realize space saving.

(1) A coating apparatus disclosed herein includes a coating agent supply unit that supplies a coating agent, and a slit that discharges the coating agent supplied from the coating agent supply unit onto a strip-shaped coated sheet. A lip head.
(2) The coated sheet is preferably a sanitary papermaking body.
(3) The sanitary ware manufacturing apparatus disclosed herein manufactures sanitary ware having a predetermined width direction dimension from a strip-shaped paper product conveyed in a stretched state. This manufacturing apparatus is provided with the application part which apply | coats a chemical | medical agent to the said papermaking body cut | judged by the said predetermined width direction dimension. Moreover, the said application part is the said coating apparatus, Comprising: The said chemical | medical agent is apply | coated to the said papermaking body as the said liquid agent.

  According to this case, the application amount can be easily adjusted while saving space.

It is a schematic diagram which shows the outline | summary of the process which manufactures the tissue paper which concerns on each embodiment. It is a schematic diagram which shows the paper machine which concerns on each embodiment. It is a schematic diagram which shows the lamination machine which concerns on each embodiment. It is a mimetic diagram showing a folding machine concerning each embodiment, and (A) is an XX arrow line view of (B). It is a flowchart which shows the procedure which manufactures the tissue paper which concerns on each embodiment. It is a figure which shows the modification of the folder based on each embodiment. It is a perspective view of the principal part of the coating apparatus which concerns on 1st Embodiment. It is a disassembled perspective view of the principal part of the coating apparatus which concerns on 1st Embodiment. It is sectional drawing of the principal part of the coating apparatus which concerns on 1st Embodiment. It is a disassembled perspective view of the application principal part of the coating device which concerns on the modification of 1st Embodiment. It is a disassembled perspective view of the application principal part of the coating apparatus which concerns on 2nd Embodiment.

A mode for carrying out this case will be described. The following embodiments are merely examples, and are not intended to exclude various modifications and application of techniques that are not explicitly described in the embodiments. Each configuration of this embodiment can be implemented with various modifications without departing from the spirit thereof. Further, it can be selected as necessary, and can be appropriately combined.
[I. First Embodiment]

The coating apparatus of each embodiment is incorporated in a manufacturing apparatus that manufactures sanitary products. The sanitary product manufactured by this manufacturing apparatus is a papermaking product.
A papermaking product is a product made from paper. Examples of the papermaking body include paper made from pulp fibers and non-woven fabric made from resin fibers. For example, the papermaking body includes sanitary articles such as sanitary paper such as tissue paper and paper towels as well as sanitary non-woven fabrics.

In the following embodiments, as an example of the above-described sanitary article, a sheet-like (sheet-like) tissue paper manufactured from a belt-like base paper (papermaking) to be conveyed is given.
In the following embodiment, upstream and downstream are defined based on the direction in which the base paper is transported (hereinafter abbreviated as “transport direction”). Further, for the base paper, three directions are defined: a longitudinal direction, a width direction, and a thickness direction. The longitudinal direction is a direction extending in a strip shape on the extending surface of the base paper. This longitudinal direction is along the conveying direction. The width direction is a direction orthogonal to the longitudinal direction on the extending surface of the base paper. The thickness direction is a direction orthogonal to both the longitudinal direction and the width direction.
In the description of the configuration of the present embodiment, the configuration of a manufacturing apparatus that is common or substantially common to the respective embodiments will be described, and then the coating apparatus according to the present embodiment will be described.

[1. manufacturing device]
The configuration of the apparatus for manufacturing tissue paper will be outlined.
As shown in FIG. 1, the tissue paper manufacturing apparatus is roughly divided into three parts P ₁ , P ₂ , and P ₃ .
In the first part P ₁ , a strip-shaped base paper W (papermaking body, sheet) is made (papermaking) by the papermaking machine 1 shown in FIG.

In the second part P ₂ , the base papers W made in the first part P ₁ are overlapped by the laminator 3 shown in FIG.
The base paper W after being superposed has a two-layer structure (so-called two-ply) and is different in structure from the single-layer base paper W before superposition (so-called one-ply), but considers readability. Simply referred to as “base paper W”.

In the third part P ₃ , the base paper W superimposed in the second part P ₂ is folded by the folding machine 5 shown in FIG.
Then, the base paper W is divided into predetermined transport direction dimensions. The base paper W until it is divided in this way is conveyed in a stretched state. Here, the “stretched state” means a state in which tension (tension) along the transport direction is applied and a state where the tension is stretched between the rolls. This base paper W is also stored in a state in which the tension applied during conveyance is maintained. From these, the base paper W from paper making to separation is kept in a state where tension is applied.

In the first part P ₁ , the stencil paper W is wound up. This paper W is conveyed to the second part P _2. Then, the base paper W is fed out. Similarly, in the second part P ₂ , the superposed base paper W is wound up. This paper W is conveyed to the third part P _3. Then, the base paper W is fed out.

That is, first volume preparative Part 15 (see FIG. 2) is provided downstream of the first part P _1, a first feeding part 30 (see FIG. 3) is provided upstream of the second part P _2. Further, the second volume collected by part 38 (see FIG. 3) is provided downstream of the second part P _2, the second feeding part 50 (see FIG. 4) is provided upstream of the third part P _3. Further, a first transport part P ₁₂ (first transport part) is provided between the first part P ₁ and the second part P _2, and a _second transport part between the second part P ₂ and the third part P ₃ is provided. A transport part P ₂₃ (second transport part) is provided.

A tension is applied to the transported base paper W by being wound by the first part P ₁ and the second part P ₂ . In other words, the base paper W is pulled along the transport direction by winding the first part P ₁ and the second part P ₂ .
Hereinafter, each structure of the paper machine 1, the laminator 3, and the folder 5 will be described.

[1-1. Paper machine]
The configuration of the paper machine 1 will be described in detail with reference to FIG.
The paper machine 1 is a tissue machine that forms a strip-shaped base paper W from raw materials.
The paper machine 1 is provided with a paper making part 10 (paper making section) for making the base paper W. In addition, a first winding part 15 (first winding part) for winding the base paper W made by the paper making part 10 is also provided.

The paper making part 10 includes a wire part 11 for making a wet base paper W (wet paper) from a raw material, a press part 12 for pressing moisture from the wet base paper W, and a dryer for drying the base paper W compressed with water. Part 13 is subdivided into a calendar part 14 that increases the smoothness of the dried base paper W. The base paper W whose smoothness is increased by the calendar part 14 is taken up by the first take-up part 15.
Hereinafter, the parts 11, 12, 13, 14, and 15 of the paper machine 1 will be described in the order of the manufacturing process.

<Wire part>
The wire part 11 is provided with a head box H for injecting slurry as a raw material of the base paper W. A raw material liquid in which pulp fibers are suspended is used for the slurry.
The wire part 11 is provided with two types of wire belts B _T and B _C partially wound around the outer periphery of the forming roll _RT .

The wire belts B _T and B _C are mesh-like endless belts wound around a belt conveyance roll. The forming wire belt B _T is wound around the slurry on the opposite side (outer peripheral side) from the forming roll RT side, and the conveying wire belt B _C is formed on the forming roll _RT side (inner peripheral side) with respect to the slurry. Wrapped.
The slurry injected between the wire belts B _T and B _{C on} the outer periphery of the forming roll R _T is dehydrated, so that the wet base paper W is made.

As shown in FIG. 2, the headbox H, forming wire belt B _T side with the first injection port H _E1 for emitting a first raw material liquid (outer circumferential side), conveying the wire belt B _C side (inner circumferential side) And a second injection port _HE2 for injecting the second raw material liquid. The fiber length of the pulp in which the first raw material liquid is suspended is set shorter than that of the second raw material liquid.

Since the base paper W is made from the slurry when transported on the transported wire belts B _T and B _C , the pulp is oriented along the transport direction. Therefore, the base paper W has a tear strength directivity that is difficult to tear along the width direction and easy to tear along the longitudinal direction.
Base paper W is the delivery wire belt B _C, it is conveyed to the next press part 12.

<Press part>
The press part 12, the conveying belt B _A water-absorbent is provided wound on a belt conveyor roll. An endless belt made of a material that absorbs water (for example, felt) is used as the transport belt B _A.
Site upstream side of the conveying belt B _A is provided in a state that it is pressed against sheet W conveyed by the conveying wire belt B _C described above.

Of the belt transport roll, the roll conveyor wire belt B _C places is wound to bias against the base paper W, and built-in suction roll R _A suction mechanism M _S is provided for sucking the sheet W Yes. The suction roll R _A, the conveyance path of the sheet W is switched on the conveying belt B _A from the delivery wire belt B _C.
In urging portions of the conveyor wire belt B _C against sheet W, water is squeezed from the sheet W. The base paper W thus dehydrated is transported to the next dryer part 13 by the transport belt B _A.

<Dryer part>
The dryer part 13 is provided with a drying roll R _D (also referred to as “yankee roll”) that dries the base paper W.
_A downstream portion of the transport belt B _A is urged to the drying roll _RD via the base paper W. The base paper W transported by the transport belt B _A moves so as to stick to the outer peripheral surface of the rotating drying roll _RD . The drying roll _RD heats the cylinder surface by, for example, steam introduced into the cylinder, and dries the base paper W on the cylinder surface.

The dryer part 13, the doctor blade D _D is provided for peeling the dried sheet W from the drying roll R _D.
Doctor blade D _D is the cutting edge against the cylinder face of the drying roll R _D are disposed in abutting been posture. Doctor blade D _D is the base paper W is peeled from the drying roll R _D imparts crepe (crepe-like wrinkles). The base paper W is provided with a crepe having a mixture of densely gathered portions and loosely gathered portions.

Drying rolls R in accordance with the conveyance speed of the abutment angle or exfoliated sheet W of the doctor blade D _D for _D, crepe condition applied to the base paper W changes. Conversely, by controlling the conveying speed of the doctor blade D _D abutment angle and drying roll R _D fiberboard W peeled from, it is possible to adjust the state of crepe imparted to the base paper W .
The base paper W thus peeled from the drying roll _RD is conveyed to the next calendar part 14.

<Calendar part>
The calendar part 14 is provided with a pair of calendar rolls _RL . The calendar rolls _RL rotate at a speed corresponding to the transport speed of the base paper W, and are arranged to face each other with the transported base paper W sandwiched therebetween. The base paper W is compressed in the thickness direction between the calendar rolls _RL .
The base paper W that has been calendered in this way is conveyed to the next first winding part 15.

<First winding part>
The first winding part 15 is provided with a first winding roll R _W1 for winding the base paper W. The first original fabric roll W _R1 is wound band-shaped sheet W is produced on the roll R _W1 preparative first volume. The first winding part 15 can be said to be a first tension part (first tension part) or a first tension application part (first tension application part) because the base paper W is pulled and taken up.
In the following description, in order to prevent the semi-finished product (intermediate) first raw fabric roll W _R1 from being confused with the rolls constituting the device structure, the “first original fabric roll W _R1 ” is referred to as “first raw fabric W _R1. ".

[1-2. Laminating machine]
The configuration of the laminator 3 will be described in detail with reference to FIG.
The laminating machine 3 is a ply machine that superimposes the base papers W. In the laminating machine 3, two first original webs W _R1 and W _R1 are installed, and the raw papers W fed out from the first original webs W _R1 and W _R1 are laminated. That is, the base paper W has a two-layer structure.

The laminating machine 3 includes a first feeding part 30 (first feeding part) for feeding the raw paper W from each first raw fabric W _R1 and a second winding part 38 (second winding part) for winding the raw paper W. Thus, there is provided a lamination part 32 (lamination part) for overlapping the base papers W fed out by the first feeding part 30. The laminating machine 3 is provided with an engaging part 35 (engaging portion) for engaging two layers of base paper W overlapped by the stacking part 32, and a cutting part 36 (for cutting the engaged base paper W). A cutting section) is also provided. The laminating machine 3 is also provided with a wetting part 37 (wetting part) for wetting the base paper W in which two layers are engaged. A calendar part 33 is provided between the stacked part 32 and the engaging part 35.
Hereinafter, each part 30, 32, 33, 35, 36, 37, 38 of the laminating machine 3 will be described in the order of the manufacturing process.

<First delivery part>
In the first feeding part 30, two first feeding rolls R _U1 and R _U1 each having a first original fabric W _R1 are provided, and each base paper is provided from the first original roll W _{R1 of} the first feeding roll R _U1 . W is paid out.
The base paper W fed out in this way is conveyed to the next lamination part 32.

<Laminated part>
The laminate part 32, laminating roll R _P is provided with two sheet W is wound by superimposing a part of the outer periphery. Two of the base paper W is superimposed in a stacked roll R _P.
This way the imbricated sheet W is the one of the two surfaces facing outward from the first surface F ₁ (surface F _F of one of the base paper W), while the second surface F ₂ (the other of the base paper W Surface F _F ).
The base paper W laminated as described above is conveyed to the next calendar part 33.

<Calendar part>
As with the calendar part 14, the calendar part 33 is provided with two sets of calendar rolls R _L1 and R _L2 , and performs two-stage calendar processing on the base paper W.
The base paper W that has been calendered in this way is conveyed to the next engagement part 35.

<Engagement part>
The engagement part 35 is provided with an engagement roll _RC that engages a part of the base paper W in the thickness direction. The engaging roll R _C, convex roll R _C1 and receiving roll R _C2 are provided. The convex roll R _C1 and the receiving roll R _C2 rotate at a speed corresponding to the conveyance speed of the base paper W, and are arranged to face each other with the base paper W interposed therebetween. The convex roll R _C1 is provided with a convex portion on the outer periphery corresponding to the location along the edge of the base paper W. This convex part is abutted against the outer periphery of the receiving roll R _C2 and received.

The convex portion of the convex roll R _C1 is abutted against the outer periphery of the receiving roll R _C2 through the sheet W, a state in which the base paper W is entangled in the thickness direction. In other words, the two layers of the base paper W are engaged with each other, and the layers having the two-layer structure are integrally engaged with each other.
The outer periphery of the receiving roll R _C2 is made of metal, and a structure in which the convex portion of the convex roll R _C1 does not easily protrude toward the receiving roll R _{C2 with} respect to the base paper W is adopted. For this reason, the base paper W that has been subjected to the engagement process by the engagement part 35 has a concave portion on the convex roll R _C1 side (for example, a linear portion along the transport direction), and the receiving roll R _C2 side is substantially flat. Eggplant. Such an engagement structure is also referred to as “crimper” or “contactor embossing”, and is structurally different from embossing having unevenness on both sides.
The base paper W subjected to the engagement process as described above is conveyed to the next cutting part 36.

<Cutting part>
The cutting part 36 is provided with a slitter S for cutting the base paper W along the longitudinal direction. The slitter S can cut the base paper W into various widthwise dimensions according to the widthwise position of the cutting location. For example, the slitter S is provided with a blade (cutter) and a blade receiving roll provided so that the position in the width direction with respect to the base paper W can be adjusted.

In the cutting part 36, the cutting dimension of the base paper W is set to a predetermined width direction dimension.
The “predetermined width direction dimension” means a width direction dimension of the base paper W installed in the folding machine 5 (see FIG. 4). As the dimension in the width direction, a dimension of an end side (long side or short side) (that is, a product width) of the finished tissue paper, a dimension that is an integral multiple of this, and the like can be given.
Each base paper W cut to such a width direction dimension is conveyed to the next wet part 37.

<Wet part>
The wetting part 37 is provided with a device for wetting the base paper W. As this wetting device, here, sprayers A ₁ and A ₂ (multi-wetting section) for spraying water onto both sides F ₁ and F ₂ of the base paper W are exemplified (FIG. 3). Specifically, a first sprayer A ₁ that contains moisture on the first surface F ₁ of the base paper W and a second sprayer A ₂ that contains moisture on the second surface F ₂ of the base paper W are provided.
Since the wet part 37 contains water in the base paper W as described above to increase the degree of wetness, it can also be referred to as a humidification part (humidification part).
The base paper W containing water in this way is conveyed to the next second winding part 38.

<2nd winding part>
The second volume collected by part 38, similarly to the first volume preparative Part 15, the roll R _W2 preparative second volume for taking up the sheet W is provided. The second bulk roll W _R2 is produced on the roll R _W2 preparative second volume is wound band-shaped sheet W. In the second winding part 38, similarly to the first winding part 15, since the base paper W is wound while being pulled, the second tension part (second tension part) and the second tension application part (second tension) It can also be said to be an application unit. The second original fabric roll W _R2 is also abbreviated as “second original fabric W _R2 ” in order to prevent confusion with the roll forming the device structure.

[1-3. Folding machine]
The configuration of the folding machine 5 will be described in detail with reference to FIG.
The folder 5 is an interfolder that folds the base paper W. The folding machine 5 employs a so-called multi-stand type interfolder (also referred to as “multiple machine”), which corresponds to the number of sheets packed in the product state (the number of sheets accommodated in the tissue box). A number of second webs W _R2 are installed.

The folding machine 5 includes a second feeding part 50 (second feeding part) that feeds the base paper W from each second raw fabric W _R2 and a folding part 54 (folding part) that folds the base paper W. An application part 52 (application part) that applies the medicine to the base paper W after being fed by the feeding part 50 and before being folded by the folding part 54 is provided. The folding machine 5 is provided with an emboss forming part 51 (emboss forming portion) for forming (giving) unevenness (emboss) on the base paper W before the medicine is applied. The folding machine 5 is also provided with a dividing part 56 (dividing part) for dividing the base paper W folded by the folding part 54 and a packaging part 58 (packing part) for the base paper W divided by the dividing part 56. .

Two second raw fabrics W _R2 are installed (for example, juxtaposed) in one second feeding part 50. When a set of tissue is manufactured with two sheets that are packaged in a product state, each of the two second raw fabrics W _R2 installed in the second feeding part 50 has a two-layer structure. A pair of tissue (a state in which two base papers W are overlapped) is manufactured from the two raw fabrics W _R2 . That is, two sets of tissue are manufactured from one second feeding part 50. That is, the same number of second feeding parts 50 as the half of the total number of pairs of tissue (one box of tissue) packaged in a product state are installed.
The embossing part 51, the application part 52, and the folding part 54 are provided at a number of locations, like the second feeding part 50. On the other hand, the dividing part 56 and the packaging part 58 are provided at one location downstream of the folding machine 5.

Hereinafter, each part 50, 51, 52, 54, 56, 58 of the folding machine 5 will be described in the order of the manufacturing process.
The upstream parts 50, 51, 52 and 54 will be described in detail with reference to FIG. 4A, and the downstream parts 56 and 58 will be described in detail with reference to FIG. 4B.

<Second delivery part>
In the second feeding part 50, the second feed roll R _U2 of the second original fabric W _R2 is installed is provided, the base paper W is fed out from the second original fabric W _R2 of the second feed roll R _U2.
The base paper W fed out in this way is conveyed (derived) to the next emboss formation part 51.

<Emboss formation part>
The emboss forming part 51 forms irregularities on the base paper W cut to a predetermined width direction dimension (from this, the emboss forming part 51 can be said to be an “embossed part after cutting”).
The embossing part 51 is arranged opposite to each other pair of embossing rolls R _E for forming irregularities on the base paper W is across the sheet W. The peripheral surface of the embossing roll R _E, irregularities corresponding to the irregularities formed on the base paper W is engraved.
In embossing part 51, the unevenness of the embossing roll R _E is pressed against the sheet W, irregularities are formed on the base paper W.

The embossing part 51 employs a double-sided embossing system, and includes a first embossing roll R _E1 that forms irregularities on the first surface F ₁ and a second embossing roll R _E2 that forms irregularities on the second surface F _2. It is done. As illustrated in FIG. 4 (A), the unevenness of the first embossing roll R _E1 and the second embossing roll R _E2 at the location where the irregularity is formed on the base paper W (nip location of the embossing rolls R _E1 and R _E2 ). A double-sided embossing system is used in which the base paper W is pressed alternately with the unevenness.

However, a double-sided embossing method in which convex portions are abutted among the unevenness of the embossing roll may be used, or a single-sided embossing method in which only one embossing roll has unevenness may be used. In the single-sided embossing method, a rubber roll is used for the other embossing roll, and unevenness is formed on the surface opposite to the unevenness forming surface of the base paper.
Since the emboss formation part 51 forms an unevenness | corrugation in the base paper W and provides emboss, it can be said that it is an emboss provision part (emboss provision part).
The base paper W on which the irregularities are formed as described above is conveyed to the next coating part 52.

<Application part>
In the application part 52, the medicine is applied to the base paper W.
Examples of the drug include various liquid agents such as a moisturizer and a fragrance, a medical ingredient, a refreshing agent, and a pigment. For example, a moisturizing liquid (medicine) in which glycerin or sorbitol is dissolved in water is used as a functional chemical that enhances the moisturizing function of the base paper W.

The application part 52 is provided with two application parts 52A and 52B (multi-application parts) for applying both surfaces F ₁ and F ₂ of the base paper W, respectively. The first surface F ₁ of the base paper W is applied by the first application part 52A (first application part). The second surface F ₂ of the base paper W is applied by the second application part 52B (second application part).
In the application parts 52A and 52B, the application direction of the medicine to the base paper W is set to the same direction. In other words, the application parts 52A and 52B apply the medicine to the base paper W from a predetermined direction. Here, a predetermined direction related to drug application is exemplified from the lower side in the vertical direction (that is, drug application from below).

The application part 52 is provided with reversing rollers R _R1 and R _R2 (surface turning parts) for reversing the direction of the base paper W. Thus, the application directions on both sides F ₁ and F ₂ are downward in the application parts 52A and 52B, respectively. It faces (one direction) and enables the application described above.
The front / back reversing roller R _R1 is disposed between the second feeding part 50 and the first application part 52A, and the front / reverse reversing roller R _R2 is disposed between the first application part 52A and the second application part 52B.
FIG. 4A illustrates two front and back reversing rollers R _R1 and two front and back reversing rollers R _R2 . However, the number of the reversing rollers R _R1 and R _R2 may be set according to the transport path of the base paper W, the surrounding configuration, the required specifications, and the like, and may be one or more than three. .

The reversing rollers R _R1 and R _R2 reverse the direction of the base paper W as follows.
The base paper W immediately before entering the front / back reversing roller R _R1 has the first surface F ₁ facing upward and the second surface F ₂ facing downward. Subsequently, the directions of both surfaces F ₁ and F ₂ are reversed by the front and back reversing rollers R _R1 , the first surface F ₁ faces downward and the second surface F ₂ faces upward, and the first coating part 52A starts from the bottom. agent is applied to one surface F _1. Thereafter, the orientations of both surfaces F ₁ and F ₂ are reversed again by the front and back reversing rollers R _R2 , the first surface F ₁ faces upward and the second surface F ₂ faces downward, and the second coating part 52B starts from the bottom. agent is applied to two surfaces F _2.

Details of the coating part 52 will be described later.
The base paper W coated with the medicine as described above is conveyed to the next folding part 54.

<Folding part>
The folding part 54 employs a mechanism for folding the base paper W using the folding plate P as a folding mechanism (folding plate type, the folding form of the base paper W is a pop-up type).
The folding part 54 includes a folding plate P that folds the base paper W, and a separation roll that separates the inclined rolls CR _I1 and _CRI2 and the pair of base papers W and W that are arranged to intersect the width direction of the base paper W. Various transport rolls such as CR _S1 and CR _S2 are provided.

The folding part 54 folds the base paper W with the first surface F ₁ on the outside and the second surface F ₂ on the inside, and forms a fold by the folding plate P along the conveying direction of the base paper W.
The base paper W folded as described above is stacked with the base paper W folded through the other second feeding part 50, the embossing part 51, the coating part 52, and the folding part 54 that are arranged side by side. _I is conveyed to the next dividing part 56 by _I.

<Parting part>
The cutting part 56 is provided with a cutter C that cuts the base paper W along the width direction. The base paper W cut in this way is divided continuously in the longitudinal direction. By being divided in this way, the tension along the transport direction applied to the base paper W is released. From this, it can be said that the base paper W to which the medicine is applied is laminated and folded without being wound.
The first winding part 15 of the first part P ₁ , the second part P ₂ (parts 30, 32, 33, 35, 36, 38), the second transport part P ₂₃ , and the second delivery part 50 of the third part P ₃ Since the tension applied to the base paper W is held on the upstream side of the dividing part 56 such as the above, it can be said to be a tension holding part (tension holding part).

The cutter C can cut the base paper W into various dimensions in the conveyance direction according to the cutting timing (here, the vertical movement control interval). For example, the longer the cutting interval of the cutter C is, the longer the distance that the base paper W is transported after the cutting is, so that the base paper W having a long transport direction dimension is cut.
Since the cutting part 56 cuts the base paper W downstream of the cutting part 36 described above, it can be said to be a second cutting part. Conversely, the cutting part 36 can also be said to be the first cutting part.

The cutting dimension of the base paper W is set to a predetermined conveyance direction dimension.
The “predetermined transport direction dimension” means a dimension of an end side orthogonal to an end side of the completed tissue paper cut to the above-described predetermined width direction dimension. Specifically, the dimension set as the length of the edge along the longitudinal direction of the tissue box in the tissue paper is set as a predetermined transport direction dimension.
The base paper W (sheet-like sanitary article) divided by the dividing part 56 in this way is a tissue paper before packaging, and is conveyed to the next packaging part 58.

<Packaging part>
In the packaging part 58, the base paper W divided by the dividing part 56 is accommodated in a packaging carton 59 (tissue box).
When packaging is completed in this way, a boxed tissue paper is completed.

<Details of application part>
A detailed configuration of the application part 52 will be described.
As shown in FIG. 4 (A), each of the coating parts 52A and 52B is in a liquid state in addition to a transport unit 520M provided with reverse rollers R _R1 and R _R2 for transporting a base paper W that is a sheet to be coated. A coating agent supply unit 551 that pumps the chemical and supplies it to the downstream side, and a lip head 552 that is connected to the downstream of the coating agent supply unit 551 via a supply path 553 and applies the chemical as a coating agent to the base paper W. The coating apparatus 550 provided with these is equipped. In the coating apparatus 550 of this embodiment, a cylindrical hollow roll 554 is interposed between the base paper W and the lip head 552.

Coating material supply unit 551, detailed configuration is not shown, and the drug C _L a reservoir sill tank as coating agent, and a pump for pumping the medicament C _L in the tank, the lip head 552 supplying the drug _{C L.} Although drug C _L is a liquid, the liquid may be a foam agent which is a state of the bubbles (foam).

As shown in FIGS. 7 to 9, the lip head 552 is an elongated member of substantially uniform cross-section, passage agent _{C L} from coating material supply unit 551 is supplied (manifold) and 552b, the channel 552b and a slit 552a for discharging a drug _{C L.} The flow path 552b and the slit 552a extend in the longitudinal direction, and the lip head 552 is disposed in a non-rotating state so that the slit 552a faces a position close to the facing surface of the transported and moving base paper W. .

The opening width of the slit 552a is variably configured by an adjustment mechanism (not shown). For example, the lip piece 552c constituting one edge of the slit 552a is configured to be movable in a direction away from or approaching the lip piece 552d constituting the other edge of the slit 552a to drive the movable lip piece 552c. The opening width can be made variable.
7 to 9, the opening width of the slit 552a is shown large for convenience, but this opening width is set to be smaller than that shown in the figure. Opening width in accordance with the viscosity etc. of the agent C _L, viscosity is low enough minutely set.

  The hollow roll 554 has a hollow interior 554h, and a large number of fine holes (communication holes) 554a that connect the circumferential surface (inner circumferential surface) of the hollow interior 554h and the roll circumferential surface (outer circumferential surface) 554c of the hollow roll 554. doing. The direction of the rotation axis of the hollow roll 554 is oriented so as to cross the longitudinal direction of the lip head 552, that is, in the conveyance direction of the base paper W (here, orthogonal) to the outside of the lip head 552. Installed.

The hollow roll 554 is arranged so that a part of the cylindrical roll peripheral surface 554c slightly enters the transport path of the base paper W, and functions as a contact surface in contact with the base paper W. The hollow roll 554 is rotationally driven by a driving device (not shown) so that the peripheral speed of the roll peripheral surface 554c becomes a speed corresponding to the transport speed of the base paper W. At this time, the peripheral speed of the roll peripheral surface 554c may be matched with the transport speed of the base paper W, but it is not necessary to match exactly.
Agent _{C L} discharged from the slit 552a of the lip head 552, since it is fed from the micropores 554a to the roll peripheral surface 554c, roll on the opposite surface of the base paper W that is transported through the transportation path in contact with the roll peripheral surface 554c Transfer coating is performed from the peripheral surface 554c.

Thus, what interposed hollow roll 554 between the base paper W and the lip head 552, the drug C _L discharged from the slit 552a directly contacting the lip head 552 to the opposing surfaces of the base paper W When applied to the base paper W, the lip head 552 does not move with respect to the base paper W that is transported and moved. Therefore, the opposing surface of the base paper W comes into sliding contact with the lip head 552, and the opposing surface of the base paper W is in contact with the lip head 552. This is to avoid the possibility of being damaged by friction. Therefore, if the contact surface of the lip head 552 with the opposite surface of the base paper W is smooth and the surface of the base paper W is not likely to be damaged even if slidably contacted, the hollow roll 554 is omitted and the lip head 552 is attached to the base paper W. Direct contact may be made.

[2. Production method]
A method for manufacturing tissue paper using the above-described manufacturing apparatus will be described.
In this method, as shown in FIG. 5, first, the first process (steps S10 and S15) corresponding to the manufacturing method of the paper machine 1 is performed. Then, the 1st conveyance process (step S20) which conveys the 1st original fabric W _R1 wound up with the paper machine 1 to the laminating machine 3 is implemented.
Then, the 2nd process (Steps S30-S38) corresponding to the manufacturing method of lamination machine 3 is carried out. Then, the second transportation process for transporting the second original fabric W _R2 taken up by the laminating machine 3 to the folding machine 5 (step S40) is performed.
Thus, the conveyance process which moves the raw fabrics W _R1 and W _R2 is performed between the processes of the first process, the second process, and the third process.
And the 3rd process (Steps S50-S58) corresponding to the manufacturing method of folding machine 5 is carried out.

In the first process, a papermaking process (step S10) corresponding to the manufacturing method of the papermaking part 10 is performed. In the paper making process, the base paper W in a wet state is dried from the raw material slurry, and crepe is applied to the base paper W.
And the 1st winding process (step S15) which winds up the base paper W by the 1st winding part 15 is implemented. This first winding process can be said to be a first tension process or a first tension applying process, following the alias of the first winding part 15.

In the second process, a first feeding process (step S30) for feeding the base paper W by the first feeding part 30 is performed. Subsequently, a stacking step (step S32) is performed in which the base paper W is overlapped by the stacking part 32.
Then, after calendering the base paper W with the calendar part 33, an engaging step (step S35) for engaging the base papers W with the engaging part 35 is performed. Thereafter, a cutting step (step S36) is performed in which the base paper W is cut into a predetermined width direction dimension by the cutting part 35.

Then, a wetting process (step S37) for wetting the cut base paper W is performed. In the wetting step, moisture is contained in both surfaces F ₁ and F ₂ of the base paper W. Further, following the alias of the wet part 37, the wet process can be said to be a humidification process.
And the 2nd winding process (step S38) which winds up the base paper W of a two-layer structure by the 2nd winding part 20 is implemented. The second winding process can also be referred to as a “second tension process” or a “second tension application process” following the alias of the second winding part 38.

In the third step, a second feeding step (step S50) for feeding the raw paper W by the second feeding part 50 is performed. Then, the embossing forming step of forming irregularities on the base paper W with an embossing roll R _E (step S51) is performed. This embossing process forms an unevenness on the base paper W that has been cut to a predetermined width direction dimension, so it can be said to be an “embossing process after cutting”. In addition, the embossing process can be called an “embossing process” because the embossing process is performed by forming irregularities on the base paper W.

Then, an application process (step S52) is performed in which the medicine is applied to the base paper W by the application part 52. Specifically, a multi-coating process (step S52) is performed in which the medicine is applied to both surfaces F ₁ and F ₂ of the base paper W.
In this multi-coating process, first, a first surface turning process (step S522) is performed in which the direction of the base paper W is reversed by the front and back reversing rollers R _R1 . Then, the first coating step of coating the drug on the first surface F ₁ of the base paper W the first coating part 52A (step S524) is performed.

Thereafter, a second surface turning step (step S526) is performed in which the orientation of the base paper W is reversed again by the front and back reversing rollers R _R2 . Then, the second applying step of applying an agent to the second surface F ₂ of the base paper W at the second coating part 52B (step S528) is performed.
In addition, since the 1st surface turning process and the 2nd surface turning process change the surface which apply | coats a chemical | medical agent, it can also be said to be a surface change process.

Subsequently, a folding step (step S54) of folding the base paper W by the folding part 54 is performed.
Thereafter, a dividing step (step S56) is performed in which the base paper W folded by the dividing part 56 is divided into a predetermined conveyance direction dimension.
In this way, the base paper W is folded and stacked without winding the base paper W coated with the medicine.

Then, the base paper W (tissue paper) is packaged in a carton 59.
The tissue paper is manufactured in such a procedure.

[3. Action and effect]
[3-1. Coating equipment]
Since the coating apparatus 540 disclosed in the present embodiment is configured as described above, the following operations and effects can be obtained.

The lip coating with lip head 552, since applying the agent C _L to the base paper W while extruded at a discharge pressure of a predetermined or more from the slit 552a formed in a very narrow, suppressed the coating amount of the drug C _L, it is possible to avoid excessive application of the pharmaceutical C _L.
Therefore, the application amount can be easily adjusted while saving space without particularly increasing the size of the apparatus.

Since the opening width of the slit 552a is configured to be variable, the application amount can be easily adjusted by adjusting the opening width of the slit 552a.
Incidentally, the coating material supply unit 551, equipped with a supply amount adjustment unit that adjusts the supply amount of the agent C _L, may be to adjust the coating amount.
May be adjusted to supply the amount of drug C _L instead the adjustment of the opening width of the slit 552a, may be adjusted to supply the amount of drug C _L in addition to the adjustment of the opening width of the slit 552a.

In particular, the type and production conditions of the raw paper W, may change the conveying speed of the sheet W, the supply amount required of the agent C _L is changed in accordance with the transport speed, in this case, required supply quantity Adjustment to the supply amount corresponding to can be easily performed.

Since applying the drug C _L from below the base paper W, excessive application of the pharmaceutical C _L into the base paper W is suppressed. Therefore, the coating amount can be easily adjusted.
Since some properties of the drug C _L may be assumed that a very small risk of dripping, in this case, the drug C _L instead to apply the lower base paper W or in addition, the base paper agents C _L It may be applied to W from above. When applying the agent C _L from both above and below the base paper W, simultaneously from both the upper and lower sheet W, or can be coated with the agent C _L to the base paper W by shifting in the conveying direction, reversing the operation of the base paper W is unnecessarily Become.

Between the lip head 552 and the base paper W, hollow roll 554 rotating at a peripheral speed in the conveyance speed of the sheet W is interposed, drug C _L discharged from the slit 552a of the lip head 552, the base paper W Is applied to the opposing surface F ₁ or F ₂ of the base paper W from the roll peripheral surface 554 c of the hollow roll 554 that is in contact with the base paper W while moving, so that the opposing surface of the base paper W is in direct contact with the lip head 552. The risk of being damaged by friction can be avoided.

  In the present embodiment, a hollow roll 554 that rotates at a peripheral speed along the conveying speed of the base paper W is interposed between the lip head 552 and the base paper W, but between the lip head 552 and the base paper W. The member may be a member (contact member) having a contact surface that contacts the base paper W while moving according to the conveyance speed of the base paper W, and corresponds to, for example, a liquid-permeable wire (net) provided in the paper machine. You may do it.

In this embodiment, the outer periphery of the lip head 552 is formed on a cylindrical surface along the inner peripheral surface of the hollow roll 554 in the vicinity of the tips of the lip pieces 552c and 552d, but as shown in FIG. The outer periphery of 562 may be formed in a cylindrical shape all around the slit 562a. In other words, the lip head 562 is constituted by a roll body, the roll body 562, a flow path 562b drug C _L extending in the axial direction flows, drug C through extending Mashimashi passage and communicating axially A slit 562a for discharging _L is formed. In this case, the cylindrical outer peripheral surface of the lip head 562 can be configured to support the hollow roll 554 in sliding contact with the cylindrical inner peripheral surface of the hollow roll 554.

[3-2. manufacturing device]
Since the tissue paper manufacturing method and manufacturing apparatus disclosed in the present embodiment are configured as described above, the following operations and effects can be obtained.

Hereinafter, operations and effects mainly relating to the production method will be described.
(1)
In a conventional manufacturing method in which a medicine is applied to a base paper in a laminating machine, a number of processes including a winding process and a feeding process are performed from the chemical application to the division and packaging of the base paper.

On the other hand, in this manufacturing method, the medicine is applied to the base paper W by the folding machine 5 downstream of the laminating machine 3. Therefore, since the winding process and the feeding process are not set, the number of processes from the application of the medicine to the base paper W to the packaging is suppressed from the number of processes of the conventional manufacturing method described above.
Therefore, the period during which the base paper W is wet and tension is applied can be suppressed. In this way, the period during which the base paper W tends to grow is shortened. Therefore, the thickness reduction of the base paper W can be suppressed. Therefore, the thickness of the tissue paper can be ensured, and the touch and texture can be enhanced. In this way, the quality of tissue paper can be improved.

By the way, in a conventional manufacturing method in which a medicine is applied to a base paper before being cut into a predetermined width direction dimension, it is difficult to apply a different medicine to each of the cut base paper as long as a kind of medicine is used. If the medicines are separately applied to each width direction region to be cut on the base paper, different medicines are applied to the base paper after cutting, but the mechanism for applying the medicine is complicated.
On the other hand, in this manufacturing method, the chemical | medical agent is apply | coated to the base paper W after the cutting | judging to a predetermined width direction dimension. Therefore, if various medicines are used properly for each folder 5, the tissue paper can have various functions with a simple configuration.

  Since the folding machine 5 is composed of various devices intricately arranged, it is difficult to secure a space for installing a new device when a drug is applied by the folding machine 5 as described above. On the other hand, if the coating apparatus 550 described above is applied in the coating process, space can be saved, and therefore, the incorporation into the folding machine 5 can be facilitated. Therefore, for example, it is possible to incorporate the coating apparatus 520 into an existing folder without significant design changes.

Here, the physical properties when the base paper W is wet will be described.
When the base paper W is wetted, the crepe-shaped wrinkles that form a crepe are unwound, and the entanglement of the fibers weakens due to a decrease in the hydrogen bonding force (intermolecular force). In other words, the base paper W has a physical property that gradually elongates as moisture penetrates. Even when the moisture of the medicine permeates the base paper W, the state in which the base paper W easily expands with time as described above is caused.

  If the wet and easy-to-extend state continues after being cut into a predetermined conveyance direction dimension in the dividing step, that is, after the tension in the conveyance direction is released, the base paper W is stretched. It is not absorbed or eliminated by the tension, and may cause wrinkles and twists. In particular, since the application process to the dividing process is a short period in which the folding process is performed, wetting of the base paper W due to the application of the drug tends to cause wrinkles and twists.

On the other hand, in this manufacturing method, a wetting process for wetting the base paper W before applying the medicine is set. The base paper W before the drug is applied can be easily stretched by this wetting process, and can be stretched in advance by the tension in the transport direction applied to the base paper W in this state. Therefore, generation of wrinkles and twists on the base paper W can be suppressed. Therefore, the quality of tissue paper can be improved.
(2) In this manufacturing method, since both surfaces F ₁ and F ₂ are wetted with respect to the base paper W, the base paper W to which the medicine is applied can be reliably stretched in advance. Therefore, generation of wrinkles and twists on the base paper W can be reliably suppressed.

(3) As described above, in the application process of the present manufacturing method, since the multi-application process for applying the medicine to both surfaces F ₁ and F ₂ of the base paper W is set, the amount of medicine applied to the base paper W is ensured. be able to. Therefore, the function added to the tissue paper can be enhanced.
Between the first application process and the second application process in which both surfaces F ₁ and F ₂ are applied in the multi-application process, a second surface turning process is set. Therefore, it is possible to employ a coating method in which the application direction of the medicine to the base paper W is limited to one direction. Specifically, the method of coating from below can be applied to both the first coating step and the second coating step.

(4) If the drug is applied to only one side of the overlapped base paper or if only one side is wetted, the base paper may be wrinkled or twisted due to the difference in the degree of stretching between the layers. There is. When the base paper layers are engaged, there is a concern about the occurrence of larger wrinkles and twists.
On the other hand, in the present manufacturing method, the both sides F ₁ and F _{2 of} the base paper W subjected to the engagement treatment are wetted in the wetting process and applied in the coating process. Can be suppressed. From this point, the quality of tissue paper can be ensured.

  (5) The base paper W to which the crepe is imparted in the paper making process is freed from the crimped wrinkles that form the crepe by wetting due to the chemical application in the coating process. By applying the medicine and embossing as described above to the base paper W having a precondition that is easy to stretch as described above, generation of wrinkles and twists on the base paper W can be suppressed.

  (6) In this production method, irregularities are formed in the embossing process before the chemical is applied to the base paper W, and the confounding of the fibers in the base paper W is strengthened by the irregularities. That is, the entanglement is strengthened in advance with respect to the base paper W in which the entanglement between the fibers is weakened by the chemical application. Therefore, the generation | occurrence | production of the wrinkles and twist with respect to the base paper W can be suppressed. Moreover, generation | occurrence | production of a wrinkle and a twist can be suppressed by the base paper W being previously extended in the thickness direction by the unevenness | corrugation formed in an emboss formation process. Therefore, the quality of tissue paper can be improved.

In this manufacturing method, irregularities are formed on the base paper W after cutting into a predetermined width direction dimension. Therefore, if an embossing roll having various uneven patterns is properly used for each folder 5, various uneven patterns can be formed on the tissue paper with a simple configuration.
(7) The above-described operations and effects can also be obtained by this manufacturing apparatus.

[II. Second Embodiment]
Next, a second embodiment will be described.
In the present embodiment, as shown in FIG. 11, a transfer roll 574 is interposed between the lip head 572 of the coating apparatus 570 and the base paper W, and the transfer roll 574 corresponds to the transport speed of the base paper W. the agent C _L discharged from the lip head 572 while rotating at a peripheral speed transferred to the base paper W. Except for this point, the configuration is the same as in the first embodiment.

  That is, the transfer roll 574 is disposed below the base paper W that is transported along the transport path. The transfer roll 574 is arranged so that a part of the cylindrical roll peripheral surface (outer peripheral surface) 574 c slightly enters the transport path of the base paper W, and functions as a contact surface in contact with the base paper W. The transfer roll 574 is rotationally driven by a driving device (not shown) so that the peripheral speed of the roll peripheral surface 574c becomes a speed corresponding to the transport speed of the base paper W. At this time, the peripheral speed of the roll peripheral surface 574c may be matched with the transport speed of the base paper W, but it is not necessary to be strictly matched.

A lip head 572 is provided below the transfer roll 574.
Lip head 572, similar to the lip head 552 of the first embodiment, an elongated member of substantially uniform cross-section, passage agent _{C L} from coating material supply unit 551 is supplied with (manifold) 572b, the flow path 572b and a lip-shaped slits 572a for discharging a drug C _L of the inner. The flow path 572b and the slit 572a are extended in the longitudinal direction. Lip head 572, a slit 572a is, are disposed so as to face the position close to the transfer roll 574, the agent _{C L} discharged from the slit 572a is supplied to the roll peripheral surface 574c of the transfer roll 574.

7 to 9, the opening width of the slit 572a is also shown large for convenience in FIG. 11, but this opening width is set to be smaller than shown. Opening width in accordance with the viscosity etc. of the agent C _L, viscosity is low enough minutely set.
Also in the lip head 572, the opening width of the slit 572a may be configured to be variable like the lip head 552.

In the present embodiment, the supply amount of the agent C _L discharged to the roll peripheral surface 574c of the transfer roll 574 (thickness), and a doctor (coating amount adjuster) 575 to adjust immediately prior to transferring the sheet W . Incidentally, Dr. 575 scrapes agent _{C L} of the roll circumferential surface 574c of the transfer roller 574 at its tip. Thereby, thereby making it possible to avoid excessive application of the pharmaceutical C _L.

The roll peripheral surface 574c of the transfer roll 574 configured capable of retaining a drug C _L is applied. On the roll peripheral surface 574c of the transfer roll 574 of this embodiment, a large number of fine recesses (not shown) are provided. Since a large number of minute recesses to retain the drug C _L supplied from the lip head 552, the supply of the drug C _L from the lip head 552 to roll peripheral surface 574c of the transfer roll 574 can be stabilized. Instead of providing a large number of fine recesses, or in addition to providing the recesses, the roll peripheral surface 574c of the transfer roll 574 may be formed of a rubber material.

With the above configuration, in the present embodiment, an agent C _L after having supplied from the lip head 552 to the transfer roll 574, since the transfer from the transfer roll 574 to the base paper W, stable coating amount of the drug C _L into the base paper W Can be made.

That is, the roll peripheral surface 574c of the transfer roll 574, it is possible to impart a structure capable of retaining a drug C _L discharged from the lip head 552, thereby reliably supplying medication C _L to the roll peripheral surface 574c Can be held.
In roll peripheral surface 574c of the transfer roller 574 of the present embodiment, since a number of minute concave portions (not shown) is provided, the agent C _L is held in a fine recess.
Even when the roll peripheral surface 574c of the transfer roller 574 is formed of a rubber material, drug C _L to the roll peripheral surface 574c is held by the adsorption of having the rubber material.

In this embodiment, configure the opening width of the slit 572a variably, the coating material supply unit 551, and either have a supply amount adjusting unit which adjusts a supply amount of the drug C _L, these one or The application amount can be adjusted by both.

[III. Others]
Finally, other modifications will be described.

Hereinafter, the modification concerning the apparatus and method which manufacture a papermaking body is explained in full detail.
The wetting step of the second step may be set before the base paper is cut into a predetermined width direction dimension or before the base paper is engaged with the two layers as long as the medicine is applied to the base paper. The wetting step is not limited to the second step, and may be set to the first step or the third step. In the third step, the wetting step may be set after the second feeding step, or in the first step, the wetting step may be set before the first winding step.
The first sprayer A ₁ and the second sprayer A ₂ may be separately arranged in two of the various wet processes described above. That is, the step of wetting the first surface of the base paper and the step of wetting the second surface of the base paper may be set independently, or these steps may be set separately.

Either the first sprayer A ₁ or the second sprayer A ₂ may be omitted, and either the first application part 52A or the second application part 52B may be omitted. That is, one of both surfaces of the base paper is wetted by a wetting process (single-sided wet process) or a wet part (single-sided wet part), and the other of both sides of the base paper is applied by a coating process (single-sided coating process) or coating part (single-sided coating part). You may apply a medicine to. In this way, by moistening both sides of the base paper by sharing it with the wetting step and the coating step, it is possible to suppress the occurrence of wrinkles and creases compared to a manufacturing method in which only one side of the base paper is subjected to a wet treatment or a chemical application. it can.

The embossing process may be set after the medicine is applied to the base paper. In this case, unevenness is formed in the embossing process on the base paper W whose fiber entanglement has been weakened by applying the chemical. The concavo-convexity of the fibers in the base paper W is reinforced by the unevenness. Therefore, generation of wrinkles and twists on the base paper W can be suppressed. Furthermore, since the fiber entanglement of the base paper W on which the unevenness is formed is weakened, the unevenness can be clearly formed according to the embossing process performed after the coating process. Thereby, the appearance of the base paper W and the wiping property by the base paper W can also be improved.
If the above-described coating apparatus 550, 570 is applied in the coating process before the embossing process, the amount of chemicals applied to the base paper is stabilized, so that generation of wrinkles and twists is suppressed before the embossing process, Unevenness can be formed more appropriately in the embossing process.

  Conversely, the embossing process may be set before the medicine is applied to the base paper. For example, you may cut, after forming an unevenness | corrugation in the base paper laminated | stacked in the lamination machine. Since such an emboss formation process and an emboss formation part form unevenness in the base paper before being cut into a predetermined width direction dimension, an emboss formation process before cutting (embossing process before cutting) or an emboss formation part before cutting It can be said that (embossing part before cutting), or in a paper machine, irregularities may be formed on the dried base paper and then wound up. In these cases, it is only necessary to provide one emboss forming part for the above-mentioned many emboss forming parts, which contributes to reduction in apparatus cost and improvement in manufacturing efficiency.

The form in which the base paper is reversed at the time of double-sided application of the medicine is not limited to the form in which the base paper is reversed in the direction orthogonal to the vertical plane, but may be a form in which the base paper changes to various postures. For example, it may be reversed using a reversing roller that is inclined with respect to the width direction so that the base paper is twisted.
The base paper may be superimposed on three layers (three plies) or more. Conversely, one layer of tissue paper may be manufactured by omitting the lamination step. In this case, the engagement step is also omitted.

  As long as the coating process for applying the drug to the base paper is set after the cutting process, the other processes except the paper making process and the wetting process may be omitted. For example, the second application step may be omitted to manufacture a single-sided tissue paper. In this case, the surface turning process is also omitted. Further, the tissue paper may be continuously manufactured by omitting the winding process, the transporting process, and the feeding process. According to such an in-line manufacturing method, the production efficiency of tissue paper can be increased.

Other types such as a long net type and a circular net type may be used for the wire part, and a multi-cylinder (cylinder dryer) roll may be used for the dryer part.
Alternatively, as shown in FIG. 6, a rotary interfolder may be used for the folder 5 ′. In this folding machine 5 ′, a set of base papers W ′ and W ′ are folded and stacked, and a fold along the width direction of the base paper W ′ is formed. Thus, according to the folding machine 5 'on which a set of base papers W', W 'is installed, the number of application units installed can be reduced as compared with the above-described multi-stand type folding machine 5. The apparatus cost can be reduced.

DESCRIPTION OF SYMBOLS 1 Paper machine 3 Laminating machine 5,5 'Folding machine 10 Paper making part (paper making part)
15 First winding part (first winding part)
30 First payout part (first payout part)
32 Lamination part
35 Engagement part (engagement part)
36 Cutting part (Cutting part)
37 Wet part (wet part)
38 Second winding part (second winding part)
50 Second delivery part (second delivery part)
51 Embossing part (embossing part)
52 Application part (application part)
52A First application part (first application part)
52B Second application part (second application part)
54 Folding part (folding part)
56 Dividing part (dividing part)
520M Conveying unit 550, 570 Coating device 551 Coating agent supply unit 552, 572 Lip head 552a, 552a Slit 552c, 552d Lip piece 554 Hollow roll 554h Hollow interior 554c Roll peripheral surface (outer peripheral surface)
554a Fine hole (communication hole)
C _L agents 574 transfer roll 574c roll circumferential surface (outer circumferential surface)
575 Doctor (Coating amount adjustment part)
A _1, A ₂ atomizer C cutter D _D doctor blade D _G1 doctor blade D _G2 doctor blade F _F surface F _B backside F ₁ first surface F ₂ second side P ₁ first part P ₂ second part P ₃ third Part P ₁₂ First conveying part P ₂₃ Second conveying part R _C Engagement roll R _D Drying roll R _E Embossing roll R _E1 First embossing roll R _E2 Second embossing roll R _O1 Offset roll R _P Laminating roll R _R1 Reversed Roller R _R2 Reversed roller R _T Forming roll R _U1 , R _U2 Feeding roll R _W1 , R _W2 Winding roll S Slitter W, W 'Base paper (papermaking)
W _R1 first fabric (roll)
W _R2 2nd roll (roll)

Claims (14)

A coating agent supply section for supplying the coating agent;
And a lip head having a slit for discharging the coating agent supplied from the coating agent supply unit onto a strip-shaped coated sheet. A contact member having a contact surface that moves according to the conveying speed of the coated sheet and contacts the coated sheet;
The contact member has a plurality of communication holes that communicate the contact surface and a back surface on the back side of the contact surface;
The said lip head is arrange | positioned at the said back surface side of the said contact member, and applies the said coating agent to the said to-be-coated sheet which moves the said contact surface side through the said communicating hole from the said back surface side. Coating equipment. The contact member is a hollow roll having a hollow interior and rotating in accordance with a conveyance speed, the outer peripheral surface being the contact surface, the inner peripheral surface being the back surface, the outer peripheral surface and the inner peripheral surface. A plurality of communication holes communicating with
The said lip head is arrange | positioned in the said hollow inside, The said coating agent was applied to the said to-be-coated sheet which moves the said outer peripheral surface side through the said communicating hole from the said inner peripheral surface side. Coating equipment. The coating agent, which is interposed between the lip head and the coated sheet and is rotated according to the conveying speed of the coated sheet, is transferred to the coated sheet while being rotated. The coating apparatus according to claim 1, comprising a transfer roll. The coating apparatus according to claim 4, wherein a large number of fine concave portions are provided on an outer peripheral surface of the transfer roll. The coating apparatus according to claim 4, wherein an outer peripheral surface of the transfer roll is formed of a rubber material. The lip head is constituted by a roll body,
The roll body has a flow path that extends in the axial direction and through which the coating agent flows, and the slit that extends in the axial direction and communicates with the flow path. The coating apparatus described in item 1. The said lip head is arrange | positioned under the said to-be-coated sheet conveyed, The coating described in any one of Claims 1-7 which apply | coats the said coating agent to the lower surface of the said to-be-coated sheet. apparatus. The coating apparatus according to claim 1, wherein an opening width of the slit is configured to be variable. The coating apparatus according to claim 1, wherein the coated sheet is a sanitary papermaking body. An apparatus for producing a sanitary product having a predetermined width direction dimension from a belt-shaped paper product conveyed in a stretched state,
An application unit for applying a drug to the papermaking body cut to the predetermined width direction dimension;
A dividing part that divides the papermaking body on which the medicine is applied in the application part into predetermined conveyance direction dimensions;
The application unit is equipped with the coating apparatus according to claim 10,
Laminate without folding the sheet coated with the drug, fold,
Sanitary ware manufacturing equipment. An apparatus for producing a sanitary product having a predetermined width direction dimension from a belt-shaped paper product conveyed in a stretched state,
An application unit for applying a drug to the papermaking body cut to the predetermined width direction dimension;
An emboss forming part for forming irregularities on the papermaking body on which the drug is applied in the application part,
The application unit is equipped with the coating apparatus according to claim 10,
The sheet to which the embossing has been applied in the embossing unit is stacked without being wound, and is folded.
Sanitary ware manufacturing equipment. An apparatus for producing a sanitary product having a predetermined width direction dimension from a belt-shaped paper product conveyed in a stretched state,
An application unit for applying a drug to the papermaking body cut to the predetermined width direction dimension;
An embossing portion for forming irregularities on the papermaking body before the drug is applied to the papermaking body at the application portion,
The application unit is equipped with the coating apparatus according to claim 10,
The sheet coated with the drug in the application unit is stacked without being wound, and folded.
Sanitary ware manufacturing equipment. An apparatus for producing a sanitary product having a predetermined width direction dimension from a belt-shaped paper product conveyed in a stretched state,
An application unit for applying a drug to the papermaking body cut to the predetermined width direction dimension;
A wet part for wetting the papermaking body before the drug is applied to the papermaking body at the application part,
The application unit is equipped with the application device according to claim 10,
The sheet coated with the drug in the application unit is stacked without being wound, and folded.
Sanitary ware manufacturing equipment.

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