WO2011118055A1 - Procédé de fabrication de rouleau secondaire entier pour article en papier pour l'hygiène, et procédé de fabrication d'article en papier pour l'hygiène - Google Patents

Procédé de fabrication de rouleau secondaire entier pour article en papier pour l'hygiène, et procédé de fabrication d'article en papier pour l'hygiène Download PDF

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Publication number
WO2011118055A1
WO2011118055A1 PCT/JP2010/063037 JP2010063037W WO2011118055A1 WO 2011118055 A1 WO2011118055 A1 WO 2011118055A1 JP 2010063037 W JP2010063037 W JP 2010063037W WO 2011118055 A1 WO2011118055 A1 WO 2011118055A1
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WIPO (PCT)
Prior art keywords
tissue paper
roll
chemical
chemical solution
continuous sheet
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PCT/JP2010/063037
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English (en)
Japanese (ja)
Inventor
知弘 花田
睦 石川
信義 佐々木
Original Assignee
大王製紙株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 大王製紙株式会社 filed Critical 大王製紙株式会社
Priority to CN201080065823.2A priority Critical patent/CN102869293B/zh
Priority to KR1020127026902A priority patent/KR101688259B1/ko
Publication of WO2011118055A1 publication Critical patent/WO2011118055A1/fr

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/16—Paper towels; Toilet paper; Holders therefor
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/16—Paper towels; Toilet paper; Holders therefor
    • A47K10/18—Holders; Receptacles
    • A47K10/20—Holders; Receptacles for piled sheets
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K7/00—Body washing or cleaning implements
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/50—Spraying or projecting
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/002—Tissue paper; Absorbent paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply

Definitions

  • the present invention relates to a method for manufacturing a secondary paper roll for tissue paper products used in a multi-stand type interfolder and a method for manufacturing tissue paper products.
  • tissue paper boxing products are obtained by stacking a plurality of continuous tissue papers by folding them with an interfolder (folding equipment) and cutting them into a predetermined length to obtain a tissue paper bundle. Is stored in a storage box (tissue carton).
  • interfolders include multi-stand type (multiple type) interfolders as disclosed in Patent Documents 1 and 2 below, and rotary interfolders as disclosed in Patent Documents 3 and 4 below. It has been known.
  • the following is a conventional example of a manufacturing method using a multi-stand type interfolder. That is, a primary web roll (generally also called a jumbo roll) is manufactured by making a thin paper in a papermaking facility and winding it.
  • this primary web roll is set on a ply machine, and a plurality of primary webs are produced.
  • the primary continuous sheet fed from the roll is overlapped and wound and slit (divided into the product width of the tissue paper product or a multiple of the width of the tissue paper product in the width direction) to produce a secondary raw roll made of a plurality of plies.
  • 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.
  • the secondary continuous sheet is fed out from the secondary web roll and fed to the folding mechanism, where it is stacked while being folded, and then cut into a predetermined length to form a tissue paper bundle and stored in the storage box.
  • a manufacturing method using such a multi-stand type interfolder is more productive than a manufacturing method using other folding equipment because it has a large number of folding mechanisms (usually 80 to 100). Has advantages.
  • tissue paper product coated with a chemical such as a moisturizer (usually also referred to as “lotion chemical”) has increased, and for example, a manufacturing method as disclosed in Patent Documents 5 to 7 below.
  • a chemical such as a moisturizer
  • Various facilities have been proposed.
  • tissue paper products containing such a lotion chemical are mainly manufactured by a rotary interfolder (for example, Patent Document 5 below).
  • the rotary type interfolder has a disadvantage that productivity is low because folding and cutting are simultaneously performed in a direction perpendicular to the processing direction.
  • the present inventors have considered manufacturing tissue paper products to which a chemical solution has been applied by a manufacturing method using a multi-stand type interfolder that is more productive than a rotary interfolder.
  • a manufacturing method using a multi-stand type interfolder if a chemical solution application step is provided separately from the ply machine or the multi-stand type interfolder, it takes time and labor to transfer the raw material and a large equipment cost. There is a problem.
  • the chemical solution application step is provided in the multi-stand type interfolder, it is necessary to separately provide a line for manufacturing a tissue paper product to which a chemical solution is applied and a line for manufacturing a tissue paper product to which no chemical solution is applied.
  • the main problem of the present invention is that production of secondary rolls for tissue paper products used in multi-stand type inter-folders is sufficient to make a minor modification of existing equipment without requiring major equipment modification. It is providing the manufacturing method of the secondary raw material roll for tissue paper products excellent in the property. Other problems will become apparent from the description of the effect column of the present invention described later.
  • a method for producing a secondary web roll for tissue paper products wherein a plurality of secondary web rolls for tissue paper products are continuously produced from the primary web roll, A lamination step in which a primary continuous sheet fed from a plurality of primary fabric rolls is laminated along the continuous direction to form a laminated continuous sheet; A primary chemical spraying step of applying a chemical in a sprayed state to each of the continuous sheets; Thereafter, a secondary chemical solution application step of applying a chemical solution to each continuous sheet by a flexographic printing method or a gravure printing method, A slitting process for slitting the laminated continuous sheet so as to have a product width of tissue paper products or a multiple of the width, A tissue paper product comprising: a winding step of winding each slit continuous sheet coaxially to form a plurality of secondary rolls having a product width of the tissue paper product or a multiple of the width of the tissue paper product. Manufacturing method for secondary raw fabric rolls.
  • tissue paper product according to claim 2 further comprising a contact embossing step for applying a line-shaped contact embossing for preventing delamination of the laminated continuous sheet between the second chemical solution applying step and the slitting step. Manufacturing method for secondary raw fabric rolls.
  • a number of secondary rolls for tissue paper products manufactured so as to have a product width of tissue paper products or multiple times the width of tissue paper products in the slit process in the manufacturing method according to the present invention are set in a multi-stand type interfolder at this latter stage.
  • 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 to be bundled with tissue paper. And stored in a storage box.
  • a secondary raw roll for tissue paper products is continuously produced from a primary raw roll, and in a so-called ply machine, a secondary chemical spraying step and a secondary by a flexographic printing method or a gravure printing method.
  • a chemical solution application process was incorporated to apply the chemical solution to the continuous sheet. Therefore, a minor modification of the existing papermaking equipment and the ply machine is sufficient without requiring a large equipment modification, and there is an advantage that a small investment equipment cost is sufficient.
  • the chemical spraying process and the chemical application process are incorporated in the ply machine. Switching to the tissue paper product without coating is simply excellent depending on whether or not the secondary paper roll for tissue paper product is coated with a chemical solution, and thus is excellent in productivity.
  • the production method of the present invention provides advantages such as equipment cost and coating amount management.
  • the processing speed of the ply machine is designed in accordance with the processing capability of the multi-stand type inter-folder. It is common to become. In that case, the production speeds of the chemical spraying process and the chemical coating process in the ply machine need to be performed at the same high speed of about 700 to 1100 m / min. In such a high-speed ply machine, for example, when a chemical solution is applied by a transfer method such as gravure, flexo, roll coating, a large amount of paper dust is generated mainly due to friction between the sheet running at high speed and the printing plate roll, It mixes in the coating chemical and its concentration changes, resulting in variations in coating amount.
  • a transfer method such as gravure, flexo, roll coating
  • the variation in the width application applied the first time can be offset by the variation in the second application, and as a result, there is little variation in the width direction.
  • the chemical solution is applied in a form in which the sheet is pressure-bonded between the printing plate roll and the impression cylinder roll, so that the fiber gap of the sheet is crushed and it is difficult to produce a bulk when made into a product. Moreover, this tendency becomes more prominent in the form in which the chemical solution is applied to the sheet in two steps.
  • the first chemical solution spraying step and the second chemical solution application step are applied twice.
  • the variation in the application in the width direction applied the first time can be offset by the variation in the application in the second time.
  • the application form has less variation in the width direction.
  • the first chemical solution is applied by chemical spraying.
  • the chemical spray does not generate friction in the pressure-bonded form of the sheet, and does not generate paper dust, and can be stably applied.
  • the fiber gap is not crushed, a bulky tissue paper can be obtained.
  • there is an effect that paper dust is suppressed by having appropriate moisture by the first chemical spray, and generation of paper dust is suppressed in the second transfer-type application.
  • the chemical solution application in the second chemical solution application step is performed by a flexographic printing method or a gravure printing method.
  • the flexographic printing system has the advantage that the application amount can be stabilized in response to the unevenness of the crepe paper even if the flexographic printing plate roll is made of resin and the processing speed is high, the number of anilox rolls, the cell capacity, By changing the number of lines and the vertex area ratio of the flexographic printing plate roll, there is an advantage that it is possible to easily cope with a wide range of chemical liquid viscosity and stabilize the coating amount.
  • coating process shall be a flexographic printing system using a doctor chamber.
  • the doctor chamber type is a film made by coating the chemical solution directly on the surface of the anilox roll (transfer concave roll), and it is difficult to mix paper powder and air into the chemical solution, and the characteristics of the chemical solution are easy to stabilize. And since the chemical
  • the gravure printing method is less convenient than the flexo printing method because the roll is made of metal. However, the gravure printing method is also used because it shows almost the same coating amount and coating stability in the width direction. it can.
  • the chemical solution application in the secondary chemical solution application process may be a roll coating method instead of the flexographic printing method or the gravure printing method. Hard to get.
  • (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
  • FIG. 1 It is a figure which shows a mode that the contact embossing is provided to the lamination
  • FIG. 1 It is a schematic block diagram which shows an example of a chemical
  • FIG. 1 It is a schematic diagram for demonstrating the derivation
  • FIG. 1 It is a schematic diagram for demonstrating the other derivation
  • a wet paper W is formed by supplying a pre-adjusted paper material from a head box 301 to a wire part 311 (forming process), and this wet paper W is fed into a felt 322 of a press part 321. After being transferred to, dehydration is performed by being sandwiched between a pair of dewatering rolls 323 and 324 (dehydration process).
  • the dehydrated wet paper W is attached to the surface of the Yankee dryer 331 partially covered with the Yankee dryer hood 332, dried, and peeled off by the doctor blade 333 to obtain the dry paper S1 (drying step).
  • the first winding means 341 having the winding drum 342 is used to dry the dry paper S1 so that the back surface of the dry paper S1 faces the shaft side of the primary raw roll JR.
  • a primary raw roll (commonly called “jumbo roll”) JR is formed by winding the paper S1 (first winding step).
  • the back surface of the dry paper S1 primary continuous sheets S11 and S12 described later
  • the back surface of the dry paper S1 means a surface (an anti-dryer surface) opposite to the surface that is in contact with the cylinder of the Yankee dryer 331.
  • a dispersant for example, a dry paper strength enhancer, a wet paper strength enhancer, a softener, a release agent, an adhesive, a pH adjuster such as caustic soda, an antifoaming agent, an antiseptic, a slime.
  • a pH adjuster such as caustic soda
  • an antifoaming agent such as an antiseptic
  • a slime for example, a dispersant, a dry paper strength enhancer, a wet paper strength enhancer, a softener, a release agent, an adhesive, a pH adjuster such as caustic soda, an antifoaming agent, an antiseptic, a slime.
  • Appropriate chemicals such as control agents and dyes can be added.
  • Smoothing processing can also be performed on the dry paper S1 peeled off by the doctor blade 333 by a calendar means (not shown).
  • the primary raw roll JR manufactured by the above-described manufacturing equipment / method is brought into the secondary raw roll manufacturing equipment X1 (ply machine X1) for tissue paper products according to the present invention, At least two or more primary fabric rolls JR and JR are set.
  • the ply machine X1 is a continuous sheet in which primary continuous sheets (S11, S12 in the illustrated example) fed from these primary raw rolls JR, JR are laminated along the continuous direction, and laminated in two plies in the illustrated example.
  • the ply means 51 is used as S2.
  • the ply means 51 is configured such that the surfaces of the primary continuous sheets S11 and S12 fed out from the pair of primary raw rolls JR are respectively the surfaces of the laminated continuous sheet S2.
  • the back surfaces of the sheets S11 and S12 can be respectively configured to be the surface of the laminated continuous sheet S2, and the back surface of one of the primary continuous sheets S11 and S12 is the surface of the laminated continuous sheet S2, and the other surface is It can also comprise so that it may become the surface of lamination
  • the primary continuous sheets S11 and S12 (dry paper S1) are in contact with the glossy surface of the Yankee dryer 331 during drying, and therefore have less fuzz as compared to the back surface and are smooth and soft to the touch.
  • the surfaces of the sheets S11 and S12 (dry paper S1) are respectively configured to be the surface of the laminated continuous sheet S2.
  • 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 products or a multiple of the width.
  • Winding means 56 is provided.
  • 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.
  • 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.
  • the soft calendar is a calendar using a roll coated with an elastic material such as urethane rubber
  • the chilled calendar is a calendar made of a metal roll.
  • the number of calendar means 52 can be changed as appropriate. If there are a plurality of installations, there is an advantage that even if the processing speed is high, it can be sufficiently smoothed.
  • calendar means 52 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.
  • the holding angle When arranged side by side in the horizontal direction, the holding angle becomes smaller, so the processing speed can be increased, and when arranged side by side in the vertical direction, the installation space can be reduced.
  • the holding angle means an angle while the sheet is in contact (a part of an arc of a cross section perpendicular to the axis) when viewed from the roll axis center (the same applies hereinafter).
  • 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 depending on the quality of tissue paper to be obtained, that is, paper thickness and surface properties.
  • the installation position of the calendar means 52 is not particularly limited, but is preferably subsequent to the ply means 51 and upstream of the primary chemical spraying means 40A and 40B.
  • the second chemical solution applying means 53A and 53B can be arranged after the contact embossing means 54, but the gap between the fibers to which the chemical solution is applied is crimped. Since it works, it is not a preferable form.
  • Medical spraying means Although it does not specifically limit as primary chemical
  • the types of spray nozzles in the nozzle spray device include an empty conical nozzle that sprays in an annular shape, a full conical nozzle that sprays in a circular shape, a full pyramid that sprays in a square shape, a full nozzle and a fan Type nozzles, etc., so that the chemical solution is uniformly sprayed in the width direction of the dry paper S2, the nozzle diameter, the number of nozzles, the nozzle arrangement pattern, the number of nozzle arrangements, or the spray distance, spray pressure, spray angle, In addition, the concentration and viscosity of the spray liquid can be appropriately selected and used.
  • the one-fluid spraying method applies pressure directly to the chemical liquid to be sprayed using compressed air and sprays mist droplets from the nozzle, or blows air into the nozzle from a fine hole opened on the side of the nozzle near the jet outlet. This is a method of sucking and spraying mist.
  • the two-fluid spraying method is mixed with a liquid sprayed with compressed air inside the nozzle, an internal mixing type that atomizes, mixed with a liquid sprayed with compressed air outside the nozzle, an external mixing type that atomizes, and atomized
  • Examples include a collision type system in which mist droplet particles collide with each other to further homogenize and atomize the mist droplet particles.
  • the rotor dampening coating device is a device that sends out the liquid to be sprayed onto a disk that rotates at high speed, and makes the liquid atomized by the centrifugal force of the disk, and controls the particle size of the droplets by changing the rotational speed of the disk.
  • the amount of spray liquid (applied amount) is controlled by changing the amount of liquid fed onto the disk.
  • the rotor dampening coating device has the advantage that a small amount of spray liquid can be uniformly applied to the paper surface while suppressing the scattering of mist droplets, and the adjustment of spraying speed, mist particle diameter, etc. is easy. is there.
  • the atomized particle diameter of the atomized chemical liquid is as small as possible.
  • the mist droplets are too fine, the mist droplets are swept away by the rebound of the sprayed air or the air accompanying the surface of the dry paper S2, and particularly when the traveling speed of the dry paper S2 is high, the mist drops are dry paper. It becomes difficult to adhere to the surface of S2.
  • the spray distance, spray pressure, spray angle, spray speed, and in the case of the two-fluid system the mixing ratio of the chemical liquid for spraying and the compressed air, the concentration and viscosity of the chemical liquid, etc.
  • mist droplets floating as mist without being applied to the surface of the dry paper S2 can be sucked and collected and sprayed again.
  • FIG. 28 shows an example of a chemical spraying means 40A, 40B of a nozzle type spray system, particularly a two-fluid system.
  • the chemical spraying means (devices) 40A and 40B are formed with a chemical solution passage 40a at the center and an air passage 40b around the chemical solution passage 40a, and the chemical solution ejected from the tip of the chemical solution passage 40a by the air discharged from the air passage 40b.
  • the liquid is atomized, and the chemical solution is sprayed in a substantially conical shape.
  • Reference numeral 40c denotes an external protective casing which protects the nozzle from paper dust and the like, and can clean the nozzle with air passing through the purge air passage 40d if necessary.
  • This kind of chemical spraying means 40A, 40B can be provided at one or more intervals in the width direction of the dry paper S2.
  • the mist droplets are washed away by the rebound of the sprayed chemical liquid or the air accompanying the surface of the dry paper S2, and the mist drops adhere to the dry paper S2 surface particularly when the dry paper S2 has a high traveling speed. It becomes difficult. Therefore, if necessary, as shown in FIG. 29, the air sprayed from the air supply path 40f formed in the casing 40e from the periphery of the chemical fluid spraying means (spray nozzle) 40A, 40B of the one-fluid system or the two-fluid system, When the spray chemical liquid from the chemical spray means (spray nozzles) 40A and 40B is surrounded, the chemical liquid can be suitably applied to the dry paper S2.
  • FIG. 30 shows an example of a rotor dampening coating apparatus 40X.
  • a rotating rotor 40o is provided in a cover storage chamber 40p provided as necessary, and a chemical solution is sprayed onto the dry paper S2 from an ejection port 40q of the rotating rotor 40o.
  • the amount of chemical applied to the dry paper S2 by the primary chemical spraying means 40A and 40B is desirably 0.5 to 1.5 g / m 2 , more preferably 0.7 to 1.2 g / m 2. It is said.
  • the amount of the chemical solution applied by the second chemical solution applying means 53A and 53B is also desirably 0.5 to 1.5 g / m 2, and more preferably 0.7 to 1.2 g / m 2 . Therefore, it is desirable that the total is 1.0 to 3.0 g / m 2 per ply.
  • the total of the two plies is preferably 2.0 to 6.0 g / m 2, and particularly preferably 2.5 to 5.0 g / m 2 .
  • the chemical solution used in the present invention is preferably the same for the primary chemical solution spraying means 40A and 40B and the secondary chemical solution application means 53A and 53B in order to achieve affinity.
  • the viscosity is preferably 1 to 700 mPa ⁇ s, particularly 50 to 400 mPa ⁇ s (40 ° C.) at 40 ° C. If it is less than 1 mPa ⁇ s, the chemical solution is likely to be scattered on rolls such as anilox rolls and printing plate rolls. Conversely, if it is more than 700 mPa ⁇ s, it tends to be difficult to control the amount of application to each roll or continuous sheet.
  • the chemical solution is particularly preferably an aqueous solution, and preferably contains 70 to 90% polyol, 1 to 15% moisture, and 0.01 to 22% functional chemical as its components.
  • Polyols include 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.
  • a drug that maintains the moisture retention of polyol as a functional drug one or more of a hydrophilic polymer gelling agent, collagen, hydrolyzed collagen, hydrolyzed keratin, hydrolyzed silk, hyaluronic acid or a salt thereof, ceramide, etc. Moisturizers such as any combination can be added.
  • functional agents include emollients such as fragrances and various natural extracts, vitamins, emulsifiers that stabilize compounding ingredients, antifoaming agents, antifungal agents, organic acids, etc.
  • emollients such as fragrances and various natural extracts
  • a deodorant can be appropriately blended.
  • a polyhydric alcohol such as glycerin or propylene glycol
  • the temperature at the time of applying the chemical solution is preferably 30 ° C. to 60 ° C., preferably 35 ° C. to 55 ° C.
  • the secondary chemical solution applying means 53B that directly applies the chemical solution to the primary continuous sheet S11 is the other second chemical solution applying means. It is desirable to apply more chemical solution than the next chemical solution application means 53A.
  • FIG. 24A is a cross-sectional view of the laminated continuous sheet S2 laminated on the two plies before chemical solution application (cross-sectional view cut in parallel with the MD direction).
  • a difference is provided in the amount of the chemical solution on both surfaces, and a large amount of the chemical solution is applied to the primary continuous sheet S11 side in the drawing.
  • the laminated layers are integrated by contact embossing CE and cut into the product width by the slit means 55 (FIG. 24B).
  • the laminated continuous sheet S2 is taken up by the take-up means 56 and is left to stand for infiltration of the chemical solution.
  • the primary continuous sheets S11 and S12 constituting the laminated continuous sheet S2 coated with the chemical solution by the secondary chemical solution application unit 53 mainly extend in the MD direction.
  • the primary continuous sheet S11 to which more chemical solution is applied has a higher elongation rate than the other primary continuous sheet S12, but the primary continuous sheets S11 and S12 are fixed to each other by contact embossing CE. Wrinkles occur on the surface of the extended primary continuous sheet S11 (24 (C)).
  • a difference is also provided in the crepe rate of the laminated continuous sheet S2 to be laminated, and if a base paper having a high crepe rate is used for the primary continuous sheet S11, a difference may be caused in the elongation rate between the primary continuous sheet S11 and the primary continuous sheet S12. it can.
  • the crepe is formed by the difference between the dryer speed and the winding speed after the base paper is dried by the Yankee dryer 115 and peeled off from the Yankee dryer 115 by the doctor blade 117.
  • the shape of this crepe is adjusted by sticking the paper to the Yankee dryer 115, but since there is some variation in this sticking and the fiber raw material is not evenly distributed, There is some variation in the three-dimensional crepe shape. This variation becomes more prominent as the crepe rate increases.
  • the tissue paper that is the product has a different bulk feeling unless the chemical solution is applied (FIG. 25 ( A)).
  • the primary continuous sheet S11 extends at a higher elongation rate than the primary continuous sheet S12. Since it is fixed in parallel with the MD direction (not shown), the primary continuous sheet S11 corrugates and the bulk of the laminated sheet increases. (FIG. 25 (B)).
  • the secondary chemical solution application means 53 in the present invention a flexographic printing method or a gravure printing method is used.
  • the sheet processing speed is 100 to 1100 m / min, preferably 350 to 1050 m / min, and particularly preferably 450 to 1000 m / min. If it is less than 100 m / min, the productivity is low. On the other hand, if it is 1100 m / min or more, uneven coating tends to occur and the amount of chemical solution tends to increase.
  • the number of flexographic printing plate rolls is 10 to 60 lines, preferably 15 to 40 lines, and particularly preferably 20 to 35 lines. If the number of lines is less than 10, many coating irregularities occur.
  • the number of anilox rolls is 10 to 300, preferably 25 to 200, and more preferably 50 to 100. If the number of lines is less than 10, many coating irregularities occur. On the other hand, if the number of lines exceeds 300 lines, the paper dust tends to be clogged.
  • the anilox roll has a cell capacity of 10 to 100 cc, preferably 15 to 70 cc, particularly preferably 30 to 60 cc. If the cell capacity is less than 10 cc, a desired coating amount cannot be obtained. On the other hand, if the cell capacity is more than 100 cc, the amount of chemical solution scattered increases.
  • the flexographic printing method or the gravure printing method can stabilize the coating amount even when the processing speed is high, and can stably apply a wide range of chemical viscosity with one roll.
  • the means (calendar means 52 and contact embossing means 54 in the example of FIG. 11) arranged before and after the secondary chemical solution applying means 53 are arranged close to each other.
  • the laminated continuous sheet S2 is directly transferred from the front stage to the rear stage of the secondary chemical solution application unit 53, and does not pass through the secondary chemical solution application unit 53. Since it is only necessary to pass the laminated continuous sheet S2, the presence / absence of the chemical application can be easily switched.
  • the production facility X1 for the secondary paper roll for tissue paper product shown in FIG. 11 when producing the tissue paper product to which the chemical solution is not applied, as shown by a 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 secondary chemical solution applying means 53.
  • the chemical solution application unit 53A in the form of one of the doctor chambers has a doctor chamber 61A in which a chemical solution is placed facing a rotatable anilox roll 63A, and the anilox from the doctor chamber 61A.
  • the chemical solution is delivered to the roll 63A.
  • 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.
  • the chemical solution is applied from the printing plate roll 64A to the laminated continuous sheet S2 while applying pressure to the laminated continuous sheet S2 with the elastic roll 65A facing the printing plate roll 64A across the laminated continuous sheet S2. It has become.
  • medical solution application part 53A is located in the surface side of lamination
  • 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.
  • the chemical solution application section 53B in the form of the other doctor chamber has a doctor chamber 61B in which a chemical solution is placed facing the rotatable anilox roll 63B.
  • the chemical solution is delivered to the anilox roll 63B.
  • 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.
  • the chemical solution is applied from the printing plate roll 64B to the laminated continuous sheet S2 while applying pressure to the laminated continuous sheet S2 with the elastic roll 65B facing the printing plate roll 64B across the laminated continuous sheet S2. It has become.
  • medical solution application part 53B is located in the other surface side of the lamination
  • a supply pump (not shown) for applying a chemical solution to the doctor chamber 61B and a discharge supply pump (not shown) for returning the chemical solution from the doctor chamber 61B are also installed in the doctor chamber 61B. .
  • the chemical solution is applied to both surfaces of the laminated continuous sheet S2 from the chemical solution application unit 53A and the chemical solution application unit 53B.
  • the coating amount on the surface side of the laminated continuous sheet S2 facing the roller 54A by the chemical solution application unit 53A Can be 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 applying unit 53B.
  • the total coating amount on both sides is set to 2.5 to 5 g / m 2
  • the coating amount on the outer peripheral surface of the secondary raw roll R which is a ply raw roll is set to the secondary raw fabric.
  • the coating amount on the outer peripheral surface of the secondary raw roll R out of the total coating amount of the chemical solution on both sides of the paper is 20% or more and less than 50%.
  • the specific value varies within the above range because the optimum condition varies depending on the balance between the slip and quality of the secondary roll R, the thickness of the sheet, the permeability of the chemical, and the transferability.
  • the flexographic printing method allows the plate to be made of resin and is elastic, so that even if there are some irregularities on the sanitary thin paper, it can be adjusted by the printing pressure. Wrinkles are difficult to enter.
  • the coating amount can be stabilized even when the processing speed is high, and a wide range of chemical viscosity can be stably applied with one roll.
  • the application is also performed when the chemical solution to be used as a chemical solution is applied at a coating amount in the range described later while the laminated continuous sheet S2 is set to 700 m / min or more, preferably at a speed of 900 m / min or more.
  • the laminated continuous sheet S2 can be wound evenly and without meandering.
  • medical solution application means 53 accompanying this form are as follows.
  • a filtration device for paper powder and air contained in the chemical solution circulating in the application device such as a chemical solution tank.
  • the chamber-type secondary chemical solution applying means 53 it is necessary to install a filtration device for paper powder and air contained in the chemical solution circulating in the application device such as a chemical solution tank.
  • the chamber-type secondary chemical solution applying means 53 it is necessary to install a filtration device for paper powder and air contained in the chemical solution circulating in the application device such as a chemical solution tank.
  • the chamber-type secondary chemical solution applying means 53 When the chamber-type secondary chemical solution applying means 53 is used, paper dust and the like are reduced, so that the load on the filtration device is reduced.
  • it is desirable to stabilize the chemical viscosity by controlling the temperature of the chemical within the coating apparatus such as the doctor chamber 61A or 61B.
  • a heater can be installed in the intermediate tank and piping connected to the doctor chambers 61A and 61B
  • the moisture amount and variation in the width direction can always be checked using, for example, an infrared inspection machine.
  • brush rolls 69A and 69B having a large number of brushes are provided in contact with the printing plate rolls 64A and 64B, and the paper powder to which the printing plate rolls 64A and 64B are always attached is also provided. By scraping, clogging of the plate rolls 64A and 64B and the anilox rolls 63A and 63B can be prevented, and stable operation is possible.
  • the illustrated chemical solution supply apparatus 100 is shown as one of the two chemical solution application units 53A and 53B in the doctor chamber type flexographic printing system that constitutes the secondary chemical solution application means 53 described above.
  • the horizontal direction of the chemical solution supply apparatus 100 shown in FIG. 14 is defined as the X-axis direction, and the vertical direction is defined as the Y-axis direction.
  • the chemical solution supply apparatus 100 includes a storage tank 110 that stores the chemical solution L, an extrusion unit 120 that extrudes the chemical solution L in the storage tank 110, a doctor chamber 130 that stores the chemical solution L extruded from the extrusion unit 120, and a doctor chamber.
  • the drawing part 140 which draws a part of the chemical liquid L stored in 130 into the tank 110
  • the chemical liquid transfer part 150 which transfers the chemical liquid L supplied from the doctor chamber 130 to the surface of the laminated continuous sheet S2, and the laminated continuous sheet S2
  • a rotation unit 160 that is wound around the peripheral surface and rotated, and the like are included. Therefore, the above-described doctor chambers 61A and 61B are the doctor chamber 130 in the present embodiment, and the above-described elastic rolls 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.
  • 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).
  • 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.
  • 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.
  • 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 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.
  • 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.
  • the rotation direction of the rotation unit 160 is the r1 direction in FIG.
  • the rotation unit 160 may of course be configured to rotate in the r2 direction.
  • 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).
  • 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.
  • 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.
  • 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.
  • the adjustment valve 123 is operated to adjust the flow rate of the chemical liquid L.
  • 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.
  • 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 tubular joint 133a for leading out a part of the chemical liquid L introduced into the main body 131 is provided.
  • a detecting section 133 has a configured to include a hole 133b on the upper surface of the joint 133a of the outlet portion 133.
  • a hole 133 b is provided on the upper surface of the joint 133 a 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.
  • 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.
  • 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.
  • the chemical solution supply apparatus 200 of the third embodiment in the doctor chamber format will be described with reference to FIG.
  • 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.
  • 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.
  • differences from the doctor solution type embodiment 100 of the chemical solution supply apparatus 100 will be mainly described, and the same components are denoted by the same reference numerals and description thereof will be omitted. .
  • 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 part 133d is a cylindrical member whose upper end is 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the adjustment valve 123 is operated to adjust the flow rate of the chemical liquid L.
  • 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
  • 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.
  • 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.
  • the chemical solution supply apparatus 300 according to the fourth embodiment in the doctor chamber format will be described with reference to FIG.
  • the opening amount of the hole 133b is configured to be a fixed value, but in the chemical solution supply device 300 of the present embodiment, The opening amount can be adjusted.
  • differences from the chemical solution supply apparatus 100 of the doctor chamber type embodiment 2 and the chemical solution supply apparatus 200 of the embodiment 3 will be mainly described. Reference numerals are assigned and description is omitted.
  • 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.
  • 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).
  • 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.
  • 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.
  • 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.
  • 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.
  • the doctor chamber 130 includes the adjustment unit 133h that adjusts the opening amount of the hole 133j.
  • the opening amount of the hole 133j can be adjusted by the adjusting unit 133h.
  • 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.
  • 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.
  • FIG. It is good also as a structure like each example shown in.
  • 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. 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.
  • 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 central outlet unit 133.
  • 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
  • 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.
  • 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
  • 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.
  • 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.
  • 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 chemical application unit 53A which is one of the flexographic printing systems, is rotatably installed while a squeezing roll 62A, which is a dip roll, is immersed in a chemical solution tank 66A containing a chemical solution.
  • a squeezing roll 62A which is a dip roll
  • an anilox roll 63A is rotatably installed in contact with the squeezing roll 62A outside the chemical tank 66A, and the printing plate roll 64A in contact with the anilox roll 63A and in contact with one surface of the laminated continuous sheet S2 is rotatable.
  • the pressure is applied to the laminated continuous sheet S2 by the elastic rolls 65A that are opposed to each other with the laminated continuous sheet S2 interposed therebetween.
  • 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.
  • the other chemical application portion 53B in the flexographic printing format is rotatably installed while a squeezing roll 62B as a dip roll is immersed in a chemical liquid tank 66B containing the chemical liquid. ing.
  • an anilox roll 63B is rotatably installed in contact with the squeeze roll 62B outside the chemical tank 66B, and a printing plate roll 64B that is in contact with the anilox roll 63B and in contact with the other surface of the laminated continuous sheet S2 is also provided.
  • Pressure is applied to the laminated continuous sheet S2 with the elastic roll 65B that is rotatably installed and is opposed to the laminated continuous sheet S2.
  • the chemical solution application portion 53B is positioned on the other surface side of the laminated continuous sheet S2 that is not opposed to the roller 54A and is also not opposed to the winding drum 56A.
  • the chemical solution is applied to both surfaces of the laminated continuous sheet S2 from the chemical solution application unit 53A and the chemical solution application unit 53B.
  • the coating amount on the surface side of the laminated continuous sheet S2 facing the roller 54A by the chemical solution application unit 53A Can be 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 applying unit 53B.
  • the plate is a resin using the flexo format and is elastic, even if there are some irregularities in the laminated continuous sheet S2, it can be adjusted by the printing pressure. Wrinkles are less likely to enter the laminated continuous sheet S ⁇ b> 2 than when applied with such a metal roll.
  • the coating amount can be stabilized even when the processing speed is high, and a wide range of chemical viscosity can be stably applied with one roll. Specifically, even when the continuous chemical sheet S2 is conveyed at a speed of 700 m / min or more and the chemical solution is applied at a coating amount of 2.5 to 5 g / m 2 , the coating is uniform and meandering. It becomes possible to wind up the laminated continuous sheet S2.
  • the one-roll transfer format in the flexographic printing method is obtained by omitting the squeezing rolls 62A and 62B from the flexo two-roll transfer format described above.
  • the anilox rolls 63A and 63B are rotatably installed while being immersed in the chemical liquid tanks 66A and 66B, respectively.
  • a doctor blade (not shown) for scraping off the chemical solution on the surfaces of the anilox rolls 63A and 63B may be installed on the anilox rolls 63A and 63B.
  • Such a flexo 1-roll transfer format has the advantage that the maintenance is relatively easy, and the advantage that the state of contamination of the blades and foreign matters such as paper dust in the chemical solution can be easily observed.
  • 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.
  • a receiving roll 54B which is a metal roll or an elastic roll, and a metal, hard roller 54A having a fine convex portion 54C on the surface have a predetermined pressure.
  • the outer peripheral surfaces are in contact with each other, and are installed so as to be rotatable.
  • the laminated continuous sheet S2 is conveyed while sandwiching the laminated continuous sheet S2 between the convex portion 54C and the receiving roll 54B.
  • 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.
  • the winding means 56 mentioned above winds up the lamination
  • the contact embossing CE By providing the contact embossing CE in this way, delamination of the laminated continuous sheet S2 formed by laminating a plurality of primary continuous sheets (S11, S12 in the illustrated example) is prevented.
  • 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 location where the contact embossing means 54 is installed is not particularly limited, but it is a stage subsequent to the chemical solution applying means 53 and preceding the slit means 55, and a stage subsequent to the calendar means 52 and preceding the chemical solution applying means 53. Can be considered. That is, it suffices if it is located at a position after the calendar means 52 and before the slit means 55.
  • the contact embossing CE is applied within 0.3 to 2.5 seconds, preferably within 0.3 to 1.0 seconds after the chemical solution is applied to the laminated continuous sheet S2. It is also proposed to give If the time is less than 0.3 seconds, the chemical solution is not sufficiently absorbed by the base paper, so that the chemical solution adheres to the receiving roll 54B and the roller 54A and the paper is cut off, or the receiving roll 54B and the roller 54A are contaminated. If the time exceeds 2.5 seconds, the laminated continuous sheet S2 coated with the chemical solution is stretched, so that subsequent process wrinkles are less likely to occur, making it difficult to obtain a bulky tissue paper product. In addition, when the laminated continuous sheet S2 is fully stretched, there is no stretch that can cope with draw fluctuations, and the tensile strength is reduced due to moisture absorption and water absorption.
  • 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.
  • a roller having a fine needle-like member on the surface can be used as the roller.
  • 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.
  • the arrangement of the protrusions may be equally spaced, but may not be staggered or evenly spaced.
  • the protrusions in a row and continuously providing contact embossing, 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.
  • a tension control means 57 for controlling the tension of the laminated continuous sheet S2 may be provided between the secondary chemical solution applying means 53 and the contact embossing means 54.
  • the tension control means 57 is formed of a cylindrical roll and can be moved up and down in accordance with the bending state of the laminated continuous sheet S2. Further, when the tension control means 57 is provided, it is also proposed to arrange the calendar means 52 before the secondary chemical solution applying means 53 and after the tension control means 57.
  • the calendar roll 52A is separated from the receiving roll 52B by a distance equal to or greater than the paper thickness of the laminated continuous sheet S2 to form the laminated continuous sheet S2.
  • it is also proposed to pass through without performing a smoothing process second manufacturing equipment and manufacturing method for a secondary raw roll for tissue paper products).
  • the raw material pulp of primary continuous sheet S11, S12 is not specifically limited, According to the use of tissue paper products, an appropriate raw material pulp can be selected and used.
  • the raw material pulp include wood pulp, non-wood pulp, synthetic pulp, and waste paper pulp. More specifically, ground pulp (GP), stone grand pulp (SGP), refiner grand wood pulp (RGP), and processed pulp.
  • the raw material pulp is preferably a blend of NBKP and LBKP.
  • Waste paper pulp may be blended as appropriate, but in terms of texture and the like, it may be composed only of NBKP and LBKP.
  • the primary continuous sheets S11 and S12 have 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 .
  • the basis weight is less than 10 g / m 2 , it is preferable in terms of softness, but an appropriate strength cannot be ensured.
  • the basis weight exceeds 25 g / m 2 , it becomes too hard and the touch is deteriorated.
  • the paper thickness (measured with a Peacock manufactured by Ozaki Seisakusho) is 80 to 250 ⁇ m, preferably 100 to 200 ⁇ m, more preferably 130 to 180 ⁇ m per ply.
  • the primary continuous sheets S11 and S12 preferably have a crepe rate of 10 to 30%, more preferably 12 to 25%, and particularly preferably 13 to 20%.
  • 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.
  • the crepe rate is more than 30%, it is difficult to control the tension of the sheet at the time of processing, and the paper tends to be cut off, and wrinkles occur after production, resulting in a poor-looking tissue paper product.
  • the primary continuous sheets S11 and S12 have 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.
  • the lateral direction is preferably 300 to 600 cN / 25 mm, while the transverse direction is 100 to 300 cN / 25 mm, preferably 130 to 270 cN / 25 mm, particularly preferably 150 to 250 cN / 25 mm with two plies. If the dry tensile strength of the base paper is too low, troubles such as paper breakage and elongation at the time of production and use are likely to occur, and if it is too high, the touch becomes stiff when used.
  • paper strengths can be adjusted by a known method.
  • a dry paper strength enhancer is internally added (added to a stage before the dryer part, for example, pulp slurry) to reduce pulp freeness (for example, about 30 to 40 ml).
  • a method of increasing (for example, 50% or more) the NBKP compounding ratio can be appropriately combined.
  • 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.
  • 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.
  • the addition amount can be about 5 to 20 kg / t by weight ratio to the pulp slurry. Further, when the dry paper strength agent is internally added, the addition amount can be about 0.5 to 1.0 kg / t in terms of the weight ratio to the pulp slurry.
  • laminated continuous sheet S2 are laminated in the continuous direction to form a laminated continuous sheet S2 (lamination step), and a chemical solution is applied to the laminated continuous sheet S2 by a pair of primary chemical spray application means 40 (primary chemical solution spraying step). Then, a chemical solution is applied by a pair of secondary chemical solution application means 53 (secondary chemical solution application step), and the laminated continuous sheet S2 is made to have a product width of tissue paper products or a multiple of the width by the slit means 55. Next, the laminated continuous sheet S2 slit in the slit process is wound up coaxially, and the product width of the tissue paper product or a plurality thereof. A plurality of secondary master roll R of width, formed by the winding means 56.
  • a smoothing step of smoothing the laminated continuous sheet S2 with a pair of calendar means 52 can be provided in the preceding stage.
  • 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.
  • the processing speed is 100 to 1100 m / min, preferably 350 to 1050 m / min, more preferably 450 to 1000 m. / Min. If it is less than 100 m / min, the productivity is low. On the other hand, if it exceeds 1100 m / min, the frequency of the laminated continuous sheet S2 is increased, and the chemical solution application process does not transfer the chemical solution of the plate roll or anilox roll. Since it tends to be stable, uneven coating may occur.
  • the gravure printing method is, for example, as shown in FIG.
  • the dip roll 71 picks up a certain amount of chemical solution from the chemical solution storage tray 70, and the chemical solution remaining in the cell of the dip roll 71 is transferred to the gravure roll 72.
  • the chemical liquid transferred to the gravure roll 72 is simultaneously transferred to the surface of the laminated sheet S2 using the impression cylinder 74 as a backup while being scraped off by the scraping blade 73.
  • the dot density of the gravure roll 72 can be selected as appropriate.
  • Multi-stand type inter folder A large number of secondary raw rolls R manufactured by the manufacturing equipment and manufacturing method for secondary paper rolls for tissue paper products described above are set in a multi-stand type interfolder, and the secondary raw rolls R are set to the secondary raw rolls R. A tissue paper bundle is manufactured by unfolding and folding the next continuous sheet.
  • the multi-stand type interfolder will be described.
  • FIG. 2 and 3 show an example of the multi-stand type interfolder.
  • Reference numeral 2 in the figure denotes secondary raw rolls R, R... Set on a secondary raw roll support portion (not shown) of the multi-stand type interfolder 1.
  • 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 raw roll R has slits in the width of tissue paper product in the above-described manufacturing equipment and manufacturing method of the secondary raw roll for tissue paper products. It is wound and set in double width.
  • the continuous belt-like secondary continuous sheets 3A and 3B unwound from the secondary raw roll R are guided by guide means such as guide rollers G1 and G1 and sent to the folding mechanism section 20.
  • the folding mechanism unit 20 is provided with a folded plate group 21 in which a necessary number of folded plates P, 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.
  • a conveyor 22 is provided that receives and conveys the laminated band 30 that is stacked while being folded.
  • a folding mechanism using this kind of folded plates P, P... is a mechanism known from, for example, US Pat. As shown in FIG. 5, this type of folding mechanism folds each continuous secondary continuous sheet 3A, 3B... Into a Z-shape and side edges of adjacent secondary continuous sheets 3A, 3B. Stack the parts together.
  • FIGS. 7 to 10 show in detail the portions of the folding mechanism 20 that are particularly related to the folded plate P.
  • 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.
  • 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. .
  • 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.
  • the folded portions of the continuous secondary sheet 3B are guided between the folded portions of the continuous secondary sheet 3B.
  • 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.
  • the side edge of the next tissue paper is pulled out.
  • 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.
  • 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) 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
  • 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.
  • 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.
  • the pulling direction is along the lateral direction (CD direction) of the tissue paper T.
  • the contact embossing means 54 can also be installed between the calendar means 52 and the secondary chemical solution applying means 53.
  • the manufacturing method of the secondary raw material roll for tissue paper products using such manufacturing equipment X3 of the secondary raw material roll for tissue paper products is as follows. As shown in FIG. 20, in the method for manufacturing a secondary paper roll for tissue paper products according to the present embodiment, a primary continuous sheet (S11, S12 in the illustrated example) fed from a plurality of primary paper rolls by the ply means 51.
  • laminated continuous sheet S2 laminated continuous sheet S2
  • laminated continuous sheet S2 is smoothed by a pair of calendar means 52 (smoothing step), and the smoothed lamination is performed.
  • Contact embossing is applied to the continuous sheet S2 by the contact embossing means 54 (contact embossing process), and a pair of primary chemical spraying means 40 and secondary chemical liquid application are applied to the laminated continuous sheet S2 provided with contact embossing.
  • the chemical solution is applied by means 53 (chemical solution application step), and the laminated continuous sheet S2 is applied to the tissue paper product 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 wound coaxially to produce a product width of the tissue paper product or a plurality of product widths of the product.
  • the secondary web roll R is formed by the winding means 56.
  • the laminated continuous sheet S2 is directly transferred from the contact embossing means 54 to the slit means 55, and the primary It is only necessary to flow the laminated continuous sheet S2 without passing through the chemical spraying means 40 and the secondary chemical application means 53.
  • the chemical application steps 40 and 53 are installed between the ply means 51 and the calender means 52, and the calender means 52 is used as a step between the secondary chemical application means 53 and the contact embossing means 54. It can also be installed.
  • the manufacturing method of the secondary raw material roll for tissue paper products using such manufacturing equipment X4 of the secondary raw material roll for tissue paper products is as follows. As shown in FIG. 21, in the manufacturing method of the secondary paper roll for tissue paper products which concerns on this form, the primary continuous sheet (S11, S12 in the example of illustration) which is drawn
  • the laminated continuous sheet S2 is slit by means 55 so as to have a product width of tissue paper product or a multiple of the width (slit process), To a plurality of secondary master roll R of product width or a multiple width of tissue paper product wound laminated continuous sheet S2, the slit coaxially slitting step, formed by the winding means 56.
  • stacking continuous sheet S2 is transferred to the calender means 52 from the ply means 51, and chemical
  • a pair of calendar means 52 can be arranged along the vertical direction, and a pair of secondary chemical solution applying means 53 can be arranged along the vertical direction.
  • the manufacturing method of the secondary raw material roll for tissue paper products using such manufacturing equipment X5 of the secondary raw material roll for tissue paper products is as follows. As shown in FIG.
  • the primary continuous sheet (S11, S12 in the example of illustration) paid out from the several primary raw material roll by the ply means 51 Is laminated along the continuous direction to form a laminated continuous sheet S2 (lamination step), and the laminated continuous sheet S2 is smoothed by a pair of calendar means 52 (smoothing step), and the laminated continuous sheet S2
  • a chemical solution is applied by the pair of primary chemical solution spraying means 40 and the secondary chemical solution application means 53 (chemical solution application process)
  • contact embossing is applied to the laminated continuous sheet S2 by the contact embossing means 54 (contact embossing process).
  • the laminated continuous sheet S2 slit in the slitting process is wound up coaxially, and the product width of the tissue paper product or a plurality of secondary raw rolls R having a plurality of widths thereof are taken up by the winding means 56.
  • the laminated continuous sheet S2 is directly transferred from the calendar means 52 to the contact embossing means 54, and the chemical solution application means. It is only necessary to flow the laminated continuous sheet S2 without passing through 40, 53.
  • tissue paper product (Example) was manufactured by setting in a multi-stand type interfolder.
  • Example 1 the primary chemical solution spraying by the rotor dampening method is performed, and then the secondary chemical solution application by the flexographic printing method is performed.
  • Primary chemical spray 1.0 g / m 2 per side.
  • Secondary chemical application 1.0 g / m 2 per side. Accordingly, the chemical application amount in the total of two plies is 4.0 g / m 2 .
  • Example 2 the primary chemical solution spraying by the rotor dampening method is performed, and then the secondary chemical solution application by the flexographic printing method is performed.
  • Secondary chemical application 1.4 g / m 2 per side.
  • the chemical application amount in the total of two plies is 4.0 g / m 2 .
  • the primary chemical solution spraying by the rotor dampening method is performed, and then the secondary chemical solution application by the flexographic printing method is performed.
  • Primary chemical spray 1.6 g / m 2 per side.
  • Secondary chemical solution application : 0.4 g / m 2 per side.
  • the chemical application amount in the total of two plies is 4.0 g / m 2 .
  • the primary chemical solution spraying by the nozzle method is performed, and then the secondary chemical solution application by the flexographic printing method is performed.
  • the chemical application amount in the total of two plies is 4.0 g / m 2 .
  • Example 5 the first chemical solution spraying by the rotor dampening method is performed, and then the second chemical solution application by the gravure printing method is performed.
  • the chemical application amount in the total of two plies is 4.0 g / m 2 .
  • the chemical solution was applied only once by the flexographic printing method with a ply machine without applying the two-step chemical solution.
  • the coating amount is 2.0 g / m 2 per side, and the chemical application amount in the total of two plies is 4.0 g / m 2 .
  • the primary chemical solution was applied by a flexographic printing method on a ply machine at a coating amount of 1.0 g / m 2 per side (2.0 g / m 2 on both sides), followed by flexo printing.
  • the secondary chemical solution application by the method is performed by a two-step application method in which the application amount is 1.0 g / m 2 per side (2.0 g / m 2 on both sides).
  • the chemical application amount in the total of two plies is 4.0 g / m 2 .
  • the pulp composing the base paper was NBKP 30% and LBKP 70%. Further, a crepe rate of 19% was used.
  • medical solution of the same composition was prepared so that a viscosity might be 110 mPa * s (40 degreeC).
  • Reference Example 1 is a non-humidifying general-purpose tissue paper marketed by the applicant, and Reference Example 2 is a lotion-type tissue paper marketed by the applicant, while Reference Example 3 and Reference Example 4 are commercially available from other companies. Because it is a product, it contains unknown content.
  • Paper thickness Measured using a dial thickness gauge (thickness measuring instrument) “PEACOCK G type” (manufactured by Ozaki Seisakusho) under the conditions of JIS P 8127 (1998).
  • Product density The product density is the paper (2 ply) of tissue paper by “PEACOCK G type”, which is a doubled value (C) of the tissue paper product tsubo conditioned under JIS P 8111 conditions. The value is divided by the thickness (D), and the unit is expressed in g / cm 3 and three decimal places.
  • Dry tensile strength Measured according to the tensile test method of JIS P 8113 (1998).
  • Wet tensile strength Measured according to JIS P 8135 (1998).
  • Elongation rate Measured using “Universal Tensile and Compression Tester TG-200N” manufactured by Minebea Co., Ltd.
  • Softness Measured based on the handle ohmmeter method according to JIS L 1096 E method. However, the test piece was 100 mm ⁇ 100 mm in size, and the clearance was 5 mm. The measurement was performed 5 times each in the vertical direction and the horizontal direction with 1 ply, and the average value of all 10 times was defined as one decimal point and expressed in units of cN / 100 mm.
  • Coefficient of static friction Measured by the following method according to JIS P 8147 (1998). Stick the tissue paper peeled on one ply to the acrylic plate so that the front side of the paper is on the outside. Wrap tissue paper around a 100 g weight with 2 plies and place it on the tissue on the acrylic plate. Tilt the acrylic plate and measure the angle at which the weight slides down. The angle is measured 8 times, the average angle is calculated, and the tangent value is taken as the static friction coefficient.
  • MMD is an average deviation MMD of the static friction coefficient. MMD is one of the indices of smoothness. The smaller the numerical value, the smoother, and the larger the numerical value, the less smooth. As a method for measuring the MMD value, as shown in FIG.
  • a tension of 20 g / cm is applied to the contact surface of the friction element 212 in a predetermined direction (downward and rightward in FIG. 23A). While being brought into contact with the surface of the tissue paper 211, which is the measured sample, at a contact pressure of 25 g, it is moved 2 cm at a speed of 0.1 cm / s in the same direction as the direction in which the tension is applied.
  • the friction element 212 includes 20 piano wires P having a diameter of 0.5 mm adjacent to each other, and has a contact surface formed so that the length and the width are both 10 mm.
  • the contact surface is formed with a unit bulging portion whose tip is formed of 20 piano wires P (curvature radius 0.25 mm).
  • FIG. 23 (a) schematically shows the friction element 212
  • FIG. 23 (b) shows an enlarged view of a portion surrounded by a dashed line in FIG. 23 (a).
  • Moisture content Measured according to JIS P 8124 (1998).
  • Chemical solution content The chemical solution content indicates the content of the chemical component in the dry state (absolutely dry) contained in the unit area of tissue paper in the standard state of JIS P 8111.
  • the content of components other than moisture in the chemical solution shall be indicated.
  • the unit area of the tissue paper is an area of the plyed sheet viewed from a viewpoint perpendicular to the plane, and does not mean the total area of each plyed sheet and its front and back surfaces.
  • Chemical liquid content ratio is a chemical liquid contained in a predetermined mass of tissue paper product with the tissue paper product having a predetermined mass conditioned under JIS P 8111 as the denominator (A) (g).
  • the ratio of (B) divided by (A) is expressed as (%), with the mass (B) (g) excluding the moisture of (b) as a molecule.
  • tissue-coated tissue paper is also evaluated for the presence or absence of a sticky feeling, and the evaluation criteria are “ ⁇ ” for “less sticky” and “ ⁇ ” for “obviously sticky”. did.
  • variation in sensory evaluation refers to whether each sensory evaluation is stable in the width direction and the flow direction, in the width direction and the flow direction of the sheet, and the sampling position of the sample provided to the 87 consumers. It was investigated by correlation. The evaluation is based on the stability in the width direction and the flow direction of each sensory evaluation in Comparative Example 1, and in the case of Comparative Example 1, “1” is excellent, “2” is excellent, and “3” is remarkably excellent. ".
  • Example 1 to Example 5 the production of paper dust is less at the production site than in the flexo-type two-stage application of Comparative Example 2, It was found that stable production was possible. Further, in the comparison between the example and the comparative example 1, it can be seen that the example has less variation in sensory evaluation. Although there is little variation in the sensory evaluation in the flexographic two-stage coating of Comparative Example 2, when compared with the flexographic two-stage coating of Comparative Example 2, the “thickness” is highly evaluated. In comparison between Examples 1 to 5, it can be seen that the application amount in the primary chemical solution spraying means and the secondary chemical solution application means is preferably 0.5 to 1.5 g / m 2 .
  • invention 1 A method for producing a secondary web roll for tissue paper products, wherein a plurality of secondary web rolls for tissue paper products are continuously produced from the primary web roll, Laminating means for laminating a primary continuous sheet fed from a plurality of primary raw rolls along the continuous direction to form a laminated continuous sheet; A primary chemical solution spraying means for applying a chemical solution in a sprayed state to each of the continuous sheets; Thereafter, a secondary chemical solution applying means for applying a chemical solution to each continuous sheet by a flexographic printing method or a gravure printing method, Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper products or a multiple of the width, Tissue paper product comprising winding means for winding each slit continuous sheet coaxially to form a product width of the tissue paper product or a plurality of secondary raw rolls of multiple widths thereof. Secondary roll roll manufacturing equipment.
  • tissue paper product according to claim 2 further comprising contact embossing means for applying line-shaped contact embossing for preventing delamination of the laminated continuous sheet between the secondary chemical solution applying means and the slit means.
  • contact embossing means for applying line-shaped contact embossing for preventing delamination of the laminated continuous sheet between the secondary chemical solution applying means and the slit means.
  • invention 5 The apparatus for producing a secondary raw roll for tissue paper products according to the first aspect, wherein the application of the first chemical solution is by a nozzle spray method.
  • invention 7 A plurality of the secondary web rolls obtained by the invention of any one of the above inventions are prepared, and these are arranged along the line direction in a multi-stand type interfolder, and a plurality of secondary rolls fed out from each secondary web roll The secondary continuous sheet is transported along the continuous direction and stacked while being folded in the transport process, and then a predetermined number of laminated sheets are cut to a predetermined length to form a tissue paper bundle, and this stack is placed in a storage box.
  • An apparatus for producing tissue paper products characterized by storing.
  • the present invention can be applied to the manufacture of secondary rolls for tissue paper products used in multi-stand type interfolders and the manufacture of tissue paper products using multi-stand type inter-folders.

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Abstract

L'invention concerne un procédé de fabrication destiné à fabriquer un rouleau secondaire entier pour article en papier pour l'hygiène qui est mis en œuvre dans une plieuse à multi-étapes, et qui présente une excellente productivité simplement au moyen de modifications mineures d'un équipement existant, sans que ce dernier nécessite d'importantes modifications. Plus précisément, l'invention concerne un procédé de fabrication de rouleau secondaire entier pour article en papier pour l'hygiène qui comporte : une étape de stratification (51) dans laquelle est formée une feuille stratifiée continue (S2) par la stratification de feuilles primaires continues (S11, S12) alimentées depuis une pluralité de rouleaux primaires entiers (JR) suivant une direction de continuité des feuilles; une étape de vaporisation de solution chimique primaire (40A, 40B) dans laquelle une solution chimique est déposée sous forme de vaporisation sur la feuille stratifiée continue (S2); puis, une étape d'application de solution chimique secondaire (53A, 53B) dans laquelle il y a application selon une technique d'impression flexographique ou d'impression hélio; une étape de découpe (55) dans laquelle est découpée la feuille stratifiée continue (S2) de manière à obtenir la largeur ou plusieurs fois la largeur d'un article en papier pour l'hygiène; et une étape de bobinage (56) dans laquelle est formée une pluralité de rouleaux secondaires entiers (R) ayant la largeur ou plusieurs fois la largeur de l'article en papier pour l'hygiène, par bobinage coaxial de chaque feuille stratifiée continue (S2) ainsi découpée.
PCT/JP2010/063037 2010-03-26 2010-08-02 Procédé de fabrication de rouleau secondaire entier pour article en papier pour l'hygiène, et procédé de fabrication d'article en papier pour l'hygiène WO2011118055A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201080065823.2A CN102869293B (zh) 2010-03-26 2010-08-02 薄页纸制品用二次纸卷的制造方法和薄页纸制品制造方法
KR1020127026902A KR101688259B1 (ko) 2010-03-26 2010-08-02 티슈페이퍼 제품용 2차 원단 롤의 제조방법 및 티슈페이퍼 제품의 제조방법

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