JP2020069154A - Manufacturing method for tissue paper product - Google Patents

Abstract

To manufacture a tissue paper product of excellent quality of lotion tissue paper by downsizing carton height even when the number of sets of lotion tissue paper is relatively great and making it easy to pull out the lotion tissue paper.SOLUTION: A manufacturing method manufactures primary web rolls with a printing facility, manufactures secondary web rolls by plying up the manufactured primary web rolls by a winder, manufactures tertiary web rolls by coating the manufactured secondary web rolls with liquid chemical, processes the manufactured tertiary web rolls with a multi-stand type inter-folder, and boxes a laminate where a plurality of lotion tissue papers are laminated while folded in the way that a pull-out direction of the lotion tissue paper is a CD direction.SELECTED DRAWING: Figure 6

Description

  The present disclosure relates to methods of making tissue paper products.

  There is known a technique for appropriately setting the pullout resistance of the tissue paper from the carton.

JP 2012-24548A JP, 2014-28629, A

  However, in the conventional technology as described above, the carton height can be made compact even if the number of sets of lotion tissue paper is relatively large, the lotion tissue paper can be easily pulled out, and the quality of the lotion tissue paper (feeling and tearing) It is difficult to manufacture a tissue paper product having a good hardness (including pulling out) with good productivity.

  Therefore, in one aspect, the present invention realizes a compact carton height even when the number of sets of lotion tissue paper is relatively large, makes it easy to pull out the lotion tissue paper, and makes it difficult to tear the lotion tissue paper when it is pulled out. It is an object of the present invention to produce a tissue paper product having good paper quality (touch feeling, tear resistance (including pulling out time)) with good productivity.

  In one aspect, the following solution is provided.

(1) A method for manufacturing a tissue paper product, which is manufactured by stacking a plurality of sets of two-ply sheets of chemical-coated lotion tissue paper in a carton, which is a storage box having a substantially rectangular parallelepiped shape. hand,
The lotion tissue paper is
The basis weight per sheet ply is 12 g / m2 or more and 20 g / m2 or less,
The number of groups is 182 or more and 250 or less,
DCDT is 0.5 N / 25 mm or more and 2.3 N / 25 mm or less,
DMDT is 2.2 N / 25 mm or more and 4.7 N / 25 mm or less,
DMDT / DCDT is 1.9 or more and 4.4 or less,
Accommodated in the carton having a height of 65 mm or more and 95 mm or less,
3 to 15 sets of pull-out resistance from 0.61N to 1.30N,
The pull-out resistance of 3 to 20 pairs from the bottom is 0.15N or more and 0.60N or less,
The content of the chemical liquid per sheet ply is 1.7 g / m 2 or more and 3.7 g / m 2 or less,
The said manufacturing method manufactures the primary original fabric with a papermaking equipment, manufactures the secondary original fabric roll by plying up with the winder with respect to the produced primary original fabric, and produces the said secondary original fabric. The roll is coated with a chemical solution to produce a third original fabric, and the produced third original fabric is processed by a multi-stand type interfolder so that the lotion tissue paper can be pulled out in the CD direction. 1. A method of manufacturing a tissue paper product, which comprises box-packing a laminate in which a plurality of the lotion tissue papers are folded while being laminated.

  (2) In the configuration of (1) above, the storage period from the production of the secondary web to the coating is set to 24 hours or more and 504 hours or less.

  (3) In the configuration of (1) or (2), the storage time from the production of the third original fabric to the processing into a product is 12 hours or more and 504 hours or less.

(4) In the configuration according to any one of (1) to (3) above, the laminated body is formed in a state in which the first sheet of the lotion tissue paper is folded twice or more along the long side direction,
The first lotion tissue paper is folded so that the folding portion is located below the outlet of the carton.

(5) In the above configuration (4), the first lotion tissue paper extends from the lower end to the first side to the second side when viewed in the long side direction of the carton. The folded portion is folded back to the first side and the upper side, and the remaining folded back portion extends from the second side to the first side, and is folded back to the second side and the lower side at the second folded portion. ,
A second sheet of the lotion tissue paper extends from the second end to the first side when viewed in the long side direction of the carton, and is folded back to the second side and the upper side at the fourth folding portion. And
The lower end of the first sheet of the lotion tissue paper is located inside the fourth folding section, and the upper end of the first sheet of the lotion tissue paper and the second sheet of the lotion tissue paper are located inside the first folding section. Is characterized in that the upper end of is located.

(6) In the configuration of (4) above, the first sheet of the lotion tissue paper extends from the lower end to the first side to the second side when viewed in the long side direction of the carton. The folded portion is folded back to the first side and the upper side, and the remaining portion that is folded back extends from the second side to the first side, and the second folded portion is folded back to the second side and the upper side.
A second sheet of the lotion tissue paper extends from the second end to the first side when viewed in the long side direction of the carton, and is folded back to the second side and the upper side at the fourth folding portion. And
The lower end of the first lotion tissue paper is located inside the fourth fold, and the upper end of the second lotion tissue paper is located inside the first fold. The upper end of the first sheet is located on the uppermost side of the laminate.

(7) In the configuration of (4) above, the first sheet of the lotion tissue paper extends from the lower end to the first side to the second side when viewed in the direction of the long side of the carton. The folded portion is folded back to the first side and the upper side, and the remaining folded back portion extends from the second side to the first side, and is folded back to the second side and the lower side at the second folded portion. , The further remaining portion that has been folded back extends from the first side to the second side, and is folded back to the first side and the lower side at the third folding portion,
The second piece of the lotion tissue paper extends from the second side to the first side when viewed in the long side direction of the carton, and is folded back to the second side and the upper side at the fourth folding portion. , The remaining portion that has been folded back extends from the first side to the second side, and is folded back to the first side and the upper side at the fifth folding portion,
The lower end of the first sheet of the lotion tissue paper is located inside the fourth fold, the fifth fold is located inside the first fold, and the inside of the second fold is inside the fourth fold. The second upper end of the lotion tissue paper is located, and the third folding part is located inside the fifth folding part.

(8) In the configuration of (4) above, the first sheet of the lotion tissue paper extends from the second end to the first side from the lower end when viewed in the long side direction of the carton. The folded portion is folded back to the second side and the upper side, and the remaining portion that is folded back extends from the first side to the second side, and the second folded portion is folded back to the first side and the upper side. The further remaining portion that has been extended extends from the second side to the first side and is folded back to the second side and the lower side at the third folding portion, and the further remaining portion that has been folded back is the second portion. It extends from the side to the first side and is folded back to the first side and the lower side at the last folding part,
A second sheet of the lotion tissue paper extends from the second end to the first side when viewed in the long side direction of the carton, and is folded back to the second side and the upper side at the fourth folding portion. , The remaining portion that has been folded back extends from the first side to the second side, and is folded back to the first side and the lower side at the fifth folding portion,
The first fold is located inside the fourth fold, the fifth fold is located inside the second fold, and the fifth fold is above the fifth fold. The third fold and the last fold are located.

  (9) In any one of the above (1) to (8), the sizing agent is not blended in the papermaking process, and the addition amount of the wet paper strength agent is 0.05% with respect to pulp in comparison of solids. It is characterized by being 0.35% or less and FPR (fast path retention) being 35% or more and 93% or less.

  (10) In any one of the configurations (1) to (9), the lotion tissue paper has a content of the chemical liquid of 10% by mass or more and 22% by mass or less.

  (11) In the configuration of any of (1) to (10) above, the carton is characterized in that an upper space from one set from above the lotion tissue paper is 2 mm or more and 20 mm or less.

  In one aspect, according to the present invention, even if the number of sets of lotion tissue paper is relatively large, the carton height can be made compact, the lotion tissue paper can be easily pulled out, and the quality of the lotion tissue paper (feeling, tearing) can be obtained. It is possible to manufacture a tissue paper product having good dullness (including during withdrawal) with good productivity.

It is a perspective view of the tissue paper product of this invention. It is the perspective view which looked through the inside of the tissue paper product of the present invention. It is an explanatory view of various sizes of a drawer of a carton, and is a top view of a tissue paper product of the present invention. It is explanatory drawing of the measuring method of an upper space. It is explanatory drawing of the measuring method of drawing resistance. It is explanatory drawing of the measuring method of a static friction coefficient. It is drawing which shows an example of the machine winder used for manufacture of the lotion tissue paper of this invention. It is drawing which shows an example of the storage device used for manufacture of the lotion tissue paper of this invention. It is a schematic diagram showing a preferred example of how to fold. It is a schematic diagram showing a preferred example of how to fold. It is a schematic diagram showing a preferred example of how to fold. It is a schematic diagram showing a preferred example of how to fold. It is a schematic diagram showing a reference example of how to fold.

  Hereinafter, modes for carrying out the present invention will be described in detail.

<Lotion tissue paper>
FIG. 1A is a perspective view of a tissue paper product 7 including a lotion tissue paper 1 of the present invention. FIG. 1B is a perspective view in which the inside of the tissue paper product 7 of the present invention is seen through. In FIG. 1B, the lotion tissue paper 1 in the carton 20 is shown schematically in dotted lines.

The lotion tissue paper 1 is composed of a two-ply sheet, and is a base paper that is calendered and coated with a chemical solution (also referred to as “lotion chemical solution”). The lotion tissue paper 1 of the present invention is adjusted in paper thickness, basis weight per sheet ply, softness TS7, content of chemical liquid, and the like. The lotion tissue paper 1 of the present invention is housed in a carton 20 as shown in FIG. 1A. In the present invention, the longitudinal direction is a direction parallel to the outlet 21 of the carton 20, and the lateral direction is a direction orthogonal to the longitudinal direction. Further, with respect to the carton 20, the lotion tissue paper 1 and the like, the terms long side direction and short side direction are also used.
In the following description, unless otherwise specified, the characteristics of the lotion tissue paper 1 are the characteristics per lotion tissue (per two plies). Further, in the present specification, one sheet of lotion tissue paper 1 is synonymous with one set of lotion tissue paper 1.

[Paper thickness, basis weight]
The lotion tissue paper 1 of the present invention has a paper thickness of 0.50 mm / 10 sheets or more and 0.90 mm / 10 sheets or less, preferably 0.55 mm / 10 sheets or more and 0.82 mm / 10 sheets or less, More preferably, it is 0.60 mm / 10 sheets or more and 0.75 mm / 10 sheets or less. The above paper thickness indicates the paper thickness when 10 sheets of 1-ply sheets (5 sets of 2-ply sheets) are stacked. Here, as in the present invention, even if the number of sets of lotion tissue paper 1 is large, the height of the carton is made compact and the tactile sensation is improved. The upper space becomes large, making it difficult to pinch the tissue when pulling it out. If it is high, the number of sets is large and the carton 20 cannot be made compact. In this respect, by setting the paper thickness within the above range, it is possible to make the carton 20 compact while improving the touch.

In the lotion tissue paper 1 of the present invention, the basis weight per ply of the sheet is 12 g / m ² or more and 20 g / m ² or less, preferably 14 g / m ² or more and 19 g / m ² or less, and 16 g. / M ² or more and 18 g / m ² or less is more preferable. As in the present invention, when the lotion tissue paper 1 has a large number of sets and the carton height is made compact and the tactile sensation is improved, when the lotion content falls within a certain range and the basis weight becomes low, Since the pulp content of the product becomes small, the strength (particularly DMDT) becomes low, the number of paper breaks becomes large, and the productivity decreases. If the basis weight is high, the number of sets is large and the carton cannot be made compact. By setting the paper thickness of the lotion tissue paper 1 and the basis weight per ply of the sheet within the above range, softness and strength, compactness of the carton 20 and the number of sets can be compatible. The above-mentioned basis weight and paper thickness are those of the lotion tissue paper 1 itself, and mean the basis weight and paper thickness of the lotion tissue paper 1 in the state in which the chemical solution is applied.

[TS7]
In the lotion tissue paper 1 of the present invention, the maximum peak intensity (TS7) of the spectrum including 6500 Hz, which is automatically acquired by the software on the tissue softness measuring device TSA, is preferably 8 dBV2 rms or more and 15 dBV2 rms or less, and 9 dBV2 rms. It is more preferably 13 dBV 2 rms or less, and further preferably 10 dBV 2 rms or more and 12 dBV 2 rms or less. Like the present invention, the TS7 is an index of the softness of the lotion tissue paper 1 while the carton height is made compact and the tactile feel is good even if the number of sets of the lotion tissue paper 1 is large. When the amount is within the range of the present invention and the grammage is high, the pulp content per grammage is large, so that TS7 becomes high, the feel as a lotion tissue paper may be poor, and the carton height may not be compact. When TS7 is low, the tissue paper product 7 becomes too soft, and when the carton 20 having a large number of sets and a compact carton is used, the lotion tissue paper 1 may be easily torn when pulling out the lotion tissue paper from the carton. However, there are cases where the number of paper breaks increases during processing, resulting in poor productivity. By setting TS7 within the above range, the softness and strength (hardness to break) of the lotion tissue paper 1 are maintained in a well-balanced manner.

  Note that TS7 means the lotion tissue paper 1 itself, and means the TS7 of the lotion tissue paper 1 in the state in which the chemical solution is applied.

  The measuring method of TS7 using the tissue softness measuring apparatus TSA and the measuring apparatus used for this are described in detail, for example, in JP 2013-236904 A.

[Specific volume]
Specific volume of the lotion tissue paper of the present invention is preferably set per 3.0 cm ³ / g or more 5.7cm is ³ / g or less, 3.4cm ³ / g or more 5.2 cm ³ / g or less It is more preferable that it is not less than 3.6 cm ³ / g and not more than 4.7 cm ³ / g. The specific volume is calculated by dividing the paper thickness (per sheet (ply)) by the basis weight (per sheet (ply)). As in the present invention, even if the number of sets of lotion tissue paper 1 is large, the carton height is made compact and the tactile feel is good. Since there are many, the upper space becomes large and it may be difficult to pinch the tissue when pulling it out. If the specific volume is high, the number of sets is large and the carton 20 cannot be made compact. The specific volume can be adjusted, for example, by adjusting the basis weight and the paper thickness.

[Strength in the direction perpendicular to the pull-out direction (DMDT)]
The lotion tissue paper 1 of the present invention has a tensile strength (measured at a pulling speed of 300 mm / min) in the longitudinal direction in the dry direction according to JIS P 8113, DMDT (Dry Machine Direction Tensile strength) of 2.2 N / 25 mm or more and 4.7 N or more. / 25 mm or less, preferably 2.6 N / 25 mm or more and 4.0 N / 25 mm or less, and more preferably 3.0 N / 25 mm or more and 3.5 N / 25 mm or less. As in the present invention, even if the number of sets of lotion tissue paper 1 is large, the height of the carton is made compact and the tactile feel is good, but when DMDT is low, the lotion tissue paper 1 becomes too soft and is cut off during processing. And the productivity is poor. When the lotion content is within the range of the present invention and the grammage is high, the pulp content per grammage is large, so that the DMDT is high, the feel as a lotion tissue paper may be poor, and the carton height may not be compact. is there.

  By setting the DMDT within the above range, it is possible to improve the tactile feel of the lotion tissue paper 1 and reduce the possibility of breaking the paper.

[Strength in pull-out direction (DCDT)]
The lotion tissue paper 1 of the present invention has a lateral tensile strength (measured at a pulling rate of 300 mm / min) DCDT (Dry Cross Direction Tensile strength) of 0.5 N / 25 mm or more and 2.3 N / 25 mm or less. It is preferably 0.7 N / 25 mm or more and 1.7 N / 25 mm or less, more preferably 0.9 N / 25 mm or more and 1.3 N / 25 mm or less. Like the present invention, when the carton height is made compact and the tactile feel is good even when the number of sets of lotion tissue paper 1 is large, when the carton 20 having a large number of sets and a compact carton height is used, When the value of DCDT is small, the lotion tissue paper 1 becomes too soft and is easily broken when the lotion tissue paper 1 is pulled out, and when the value is large, the feel of the lotion tissue paper 1 tends to be poor. By setting the DCDT in the above range, it is possible to make the lotion tissue paper 1 have a good tactile sensation and to prevent the lotion tissue paper 1 from being easily torn when the tissue is pulled out.

[DMDT / DCDT]
The lotion tissue paper 1 of the present invention preferably has a DMDT / DCDT of 1.9 or more and 4.4 or less, more preferably 2.3 or more and 3.9 or less, and 2.7 or more and 3.5 or less. Is more preferable. When DMDT / DCDT has a low value, the lotion tissue paper 1 tends to be inferior in touch, but when the value is high, the lotion tissue paper 1 becomes too soft, and a carton 20 having a large number of groups and a compact carton height is used. When the tissue is open, it is easy to tear when pulling out the tissue, and more paper breaks are likely to occur during processing. In this respect, by setting DMDT / DCDT within the above range, the feel and productivity of the lotion tissue paper 1 can be improved.

[Tensile breaking elongation during DMDT measurement]
The lotion tissue paper 1 of the present invention preferably has a tensile elongation at break (hereinafter, also referred to as “longitudinal elongation”) of 11.1% or more and 19.0% or less when measured by DMDT after coating with a chemical solution. It is more preferably 0.1% or more and 17.5% or less, and further preferably 15.1% or more and 16.5% or less. Here, as in the present invention, even when the number of sets of lotion tissue paper 1 is large, the carton height is made compact and the tactile feel is good, and when the lotion content is within a certain range, calender treatment is strongly performed. Then, if the paper thickness is reduced, the paper thickness is reduced, so that the carton 20 can be made compact. However, if the paper thickness is reduced with a calendar, the specific volume becomes low, so that it becomes difficult for the lotion drug solution to uniformly permeate into the tissue, and the portion where the lotion drug solution permeates a lot is easily broken. Therefore, it is important to adjust the crepe ratio so that the longitudinal elongation is within a certain range. Therefore, when the vertical elongation is low, the lotion tissue paper 1 is likely to be torn, and when it is high, the paper thickness is high and the carton 20 is difficult to be compact when the number of sets is large. In this respect, by realizing the vertical elongation in the above range, it is possible to reduce the size of the carton 20 while preventing the lotion tissue paper 1 from being easily broken (uneven penetration of the chemical liquid). it can.

  It is advantageous to increase the crepe ratio of the base paper in order to realize the vertical elongation in the above range. For example, the crepe ratio of the base paper is preferably 15% or more and 36% or less, more preferably 18% or more and 32% or less, and further preferably 21% or more and 28% or less.

[Chemical solution]
The lotion tissue paper 1 of the present invention contains a drug solution. The chemical liquid contains an aqueous component and an oily component, and preferably further contains water. In another aspect, the chemical liquid may contain only one of the aqueous component and the oil component. As in the present invention, even if the number of lotion tissue papers 1 is large, the height of the carton can be made compact and the touch feeling can be improved.

(Aqueous component)
Examples of the aqueous component include polyhydric alcohols (alcohols having a dihydric or higher hydroxyl group). More specifically, glycerin, diglycerin, ethylene glycol, propylene glycol, 1,3-butylene glycol, polyglycerin, polyethylene glycol, polypropylene glycol, sorbitol, xylitol, erythritol and the like can be mentioned. The polyhydric alcohols may be used alone or in combination of two or more. As in the present invention, even if the number of sets of lotion tissue paper 1 is large, the height of the carton can be made compact, and the tactile feeling can be improved. Can be

(Oil component)
Examples of the oily component include various silicone oils, liquid paraffin, mineral oils, waxes and the like. These components may be blended in one kind or in two or more kinds. These components contribute to the smoothness of the lotion tissue paper 1. In the present invention, this oily component is preferably silicone oil, and more preferably amino-modified silicone oil. As in the present invention, even if the number of sets of lotion tissue paper 1 is large, the height of the carton can be made compact, and the tactile feeling can be improved. Can be

(Chemical solution content (lotion content))
The chemical liquid content in the lotion tissue paper 1 of the present invention is preferably 10% by mass or more and 22% by mass or less, more preferably 12% by mass or more and 19% by mass or less, and 14% by mass or more and 17% by mass. The following is more preferable.

Further, the lotion tissue paper 1 of the present invention preferably has a chemical liquid content per ply of 1.7 g / m ² or more and 3.7 g / m ² or less, and 2.0 g / m ² or more and 3.2 g or less. / M ² or less, more preferably 2.3 g / m ² or more and 2.9 g / m ² or less.

  By setting the content of the chemical solution within the above range, the carton height can be made compact and the tactile sensation can be improved even if the number of sets of lotion tissue paper 1 is large as in the present invention. The tactile feeling of No. 1 can be made good, and even if a compact carton 20 having a large number of sets is used, it can be prevented from breaking when pulled out. Further, when the chemical liquid content is low, the feel of the lotion tissue paper 1 tends to be inferior, and when the chemical liquid content is high, it is possible to prevent the lotion tissue paper 1 from breaking during withdrawal even when a compact carton 20 having a large number of sets is used. .. By setting the content of the chemical solution within the above range, it is possible to reduce the possibility that the lotion tissue paper 1 is likely to be torn while improving the tactile sensation.

The content of the chemical liquid is determined by the following measuring method. 5 g of lotion tissue paper 1 is sampled, dried in a dryer (105 ° C.) for 120 minutes, then allowed to cool for 30 minutes in a desiccator, and the mass is measured. The measured mass at this time is m1. Next, Soxhlet extraction is carried out for 4 hours using the lotion tissue paper 1 whose mass has been measured and 150 ml of an extraction solvent (acetone: ethanol = 1: 1). The obtained extract is heated and concentrated on a hot water bath, dried in a dryer (105 ° C.) for 90 minutes, and then allowed to cool in a desiccator for 30 minutes, and the mass is measured. The measured mass at this time is m2. Then, using the obtained two measured masses m1 and m2, m2 / m1 × 100 (%) is defined as the chemical solution content (lotion content [%]). In addition, the basis weight per ply × the lotion content = the chemical solution content (the lotion content) (g / m ² ).

(Raw tissue paper)
The two-ply sheet that forms the lotion tissue paper 1 contains pulp as a main component, and preferably contains 50% by mass or more of pulp. Pulp that can be used to produce the lotion tissue paper 1 includes wood pulp, waste paper pulp, and non-wood pulp, but the lotion tissue paper 1 of the present invention may be composed of 100% wood pulp. In addition to wood pulp, waste paper pulp and non-wood pulp may be included. Examples of components other than pulp include fillers, synthetic fibers and natural fibers. In order to obtain the target quality, a wood pulp comprising 20% by mass or more and 50% by mass or less of bleached softwood kraft pulp (NBKP) and 50% by mass or more and 80% by mass or less of bleached hardwood kraft pulp (LBKP) is used as a raw material. More preferably, NBKP: 25% by mass or more and 45% by mass or less, and LBKP: 55% by mass or more and 75% by mass or less of wood pulp is more preferably used as a raw material, and NBKP: 30% by mass or more and 40% by mass or less. It is more preferable to use a wood pulp composed of the following and LBKP: 60% by mass or more and 70% by mass or less as a raw material.

  As a material of the above LBKP, a pulp produced from Eucalyptus genus, which is represented by Eucalyptus grandis and Eucalyptus globulus, is preferable. Further, up to about 50 parts by mass of waste paper pulp may be contained with respect to 100 parts by mass of wood pulp having the above pulp ratio. Since the quality of waste paper pulp varies greatly, and the quality of the product, especially the softness, is greatly affected when the blending ratio increases, the blending amount relative to the wood pulp is preferably 30 parts by mass or less, and 15 parts by mass or less. Is more preferable, 5 mass parts or less is more preferable, and it is most preferable not to mix waste paper pulp. The waste paper pulp is preferably derived from paper liquid beverage containers such as milk cartons.

In order to secure an appropriate strength to the lotion tissue paper 1, the strength can be adjusted by beating the pulp fibers after the raw materials are blended by an ordinary means. As the beating treatment for obtaining the target quality, the freeness (csf) of the seed box raw material is preferably 350 ml or more and 650 ml or less, preferably 400 ml or more and 600 ml or less, and more preferably 450 ml or more and 550 ml or less. A dry paper strengthening agent may be used, and a wet paper strength enhancing agent is preferably used.
By adjusting the above pulp composition and freeness, the carton height can be made compact and the tactile sensation can be improved even if the number of sets of lotion tissue paper 1 is large as in the present invention. When the lotion content is set, the feel of the lotion tissue paper 1 can be improved, and even if a large number of clips are inserted into the compact carton 20, the lotion tissue paper 1 is not easily torn when pulled out.

(Dimensions of lotion tissue paper (sheet width))
The sheet width (dimension in the long side direction of the carton 20) of the lotion tissue paper 1 of the present invention (see W5 in FIG. 1B) is preferably 170 mm or more and 255 mm or less, more preferably 190 mm or more and 245 mm or less, It is more preferably 210 mm or more and 235 mm or less. The size of the lotion tissue paper 1 may be adapted according to the size of the carton 20 (see W2 in FIG. 1A) and its properties (described later).
In addition, the sheet length of the lotion tissue paper 1 of the present invention (the dimension in the long side direction of the carton 20) is orthogonal to the sheet length, that is, the sheet length in the short side direction (the dimension before folding or the folded tissue). The dimension (in the unfolded state) is preferably 135 mm or more and 215 mm or less, more preferably 155 mm or more and 205 mm or less, and further preferably 175 mm or more and 195 mm or less. By adjusting the sheet width and the sheet length within the above ranges, the sheet width and length suitable for inserting a lot of clips of the lotion tissue paper 1 of the present invention into the carton 20 having the carton height of the present invention can be obtained. It becomes difficult to tear when it is pulled out.

[carton]
The lotion tissue paper 1 of the present invention is stored in a paper carton 20 which is a substantially rectangular parallelepiped storage box.

(Length of outlet)
The length of the outlet 21 of the carton 20 (the length of the slit 5 of the window film 4) (see W4 in FIG. 1A) is preferably 70 mm or more and 160 mm or less, more preferably 90 mm or more and 140 mm or less, More preferably, it is 105 mm or more and 125 mm or less.

  The length of the outlet 21 of the carton 20 (slit length of the window film 4) is 30% or more and 72% or less and 40% or more and 62% or less with respect to the dimension of the lotion tissue paper 1 in the long side direction. It is preferable that the content is 45% or more and 55% or less. By setting the size of the outlet 21 within the above range, the carton height can be made compact and the tactile sensation can be improved even if the number of sets of lotion tissue paper 1 is large as in the present invention. Can be pulled out more easily, tearing of the lotion tissue paper 1 at the time of pulling out is also reduced, and dropback (a phenomenon in which the lotion tissue paper 1 protruding from the outlet falls into the carton 20, It becomes difficult to pull out the tissue after the dropback).

  A length (see L1 in FIG. 1C) orthogonal to the center of the outlet 21 of the carton 20 in the long side direction (L0 = 126 mm as an example in FIG. 1C), and a position displaced from the center by 20% of L0 (in FIG. 1C). It is preferable that the average value of the total of three lengths L2, L3 (126 mm × 20% = shifted position of 25 mm) (see FIG. 1C) is 22 mm or more and 72 mm or less, and more preferably 30 mm or more and 62 mm or less. And more preferably 38 mm or more and 52 mm or less. With such a numerical range, even when the number of sets of lotion tissue paper 1 is large as in the present invention, the carton height is made compact and the tactile feel is good, and the lotion tissue paper 1 is more easily pulled out. The lotion tissue paper 1 is prevented from being torn when pulled out, and the dropback is also reduced.

  The thickness of the window film 4 is preferably 30 μm or more and 70 μm or less, more preferably 40 μm or more and 60 μm or less, and further preferably 45 μm or more and 55 μm or less. By setting the thickness of the window film 4 in the above range, the carton height can be made compact even when the number of lotion tissue papers 1 is large as in the present invention, and the touch feeling can be improved. 1, the draw-out property suitable for No. 1 is improved, and the dropback is reduced. In addition, the slit length and the thickness of the window film are the same as those of the lotion tissue paper 1 of the present invention and the carton 20 which is a substantially rectangular parallelepiped storage box that stores a plurality of sets of the lotion tissue papers 1 by stacking and folding them. It is obtained when used.

(Carton dimensions)
From the viewpoint of compactness, the dimension of the carton 20 in the long side direction (see W2 in FIG. 1A) is preferably 227 mm or more and 257 mm or less, more preferably 232 mm or more and 247 mm or less when the sheet width is 225 mm. More preferably, it is 235 mm or more and 242 mm or less. The dimensions of the carton 20 in the long side direction are as follows: the dimension of the carton 20 in the long side direction (see W2 in FIG. 1A) and the sheet width of the lotion tissue paper 1 (the dimension of the carton 20 in the long side direction) (see FIG. 1B). The dimensions of the carton 20 and the sheet can be determined so that the relationship with W5) is within the specified range.

  The relationship between the dimension of the carton 20 in the long side direction (see W2 in FIG. 1A) and the sheet width of the lotion tissue paper 1 (the dimension of the carton 20 in the long side direction) (see W5 in FIG. 1B) is W5 / W2 × 100. Is preferably 88% or more and 99% or less, more preferably 91% or more and 97% or less, and further preferably 93% or more and 96% or less. As in the present invention, when the lotion tissue paper 1 has a large carton height and a good tactile feel even when the number of sets is large, when a clip having a good tactile feel and a large number of sets is inserted into the compact carton 20. With the above range, the compactness of the carton 20 and the resistance to breakage when pulled out can be improved.

  From the viewpoint of compactness, the dimension of the carton 20 in the short side direction (see W3 in FIG. 1A) is preferably 95 mm or more and 130 mm or less, and more preferably 100 mm or more and 120 mm or less when the sheet length is 188 mm. More preferably, it is 105 mm or more and 115 mm or less. The dimension of the carton 20 in the short side direction is the dimension of the carton 20 in the short side direction (see W3 in FIG. 1A) and the sheet length of the lotion tissue paper 1 (the sheet length in the short side direction of the carton 20) (Fig. The dimensions of the carton 20 and the sheet can be determined so that the relationship with (not shown) falls within a specified range.

  The relationship between the dimension of the carton 20 in the short side direction (see W3 in FIG. 1A) and the sheet length of the lotion tissue paper 1 (sheet length in the short side direction of the carton 20) W7 (not shown) is W7 / (W3 X2) x100 is preferably 72% or more and 99% or less, more preferably 78% or more and 94% or less, and further preferably 81% or more and 90% or less. As in the present invention, when the carton height is made compact and the tactile feeling is good even when the number of sets of lotion tissue paper 1 is large, when inserting a clip having a good tactile feeling and a large number of sets into a compact carton, By setting it in the above range, the compactness of the carton 20 and the resistance to breakage when pulled out can be improved.

(Number of lotion tissues and carton height)
The number (groups) of lotion tissue papers 1 stored in the carton 20 is preferably 182 or more and 250 or less, more preferably 192 or more and 230 or less, and 202 or more and 210 or less. Is more preferable. If the number of sets is small, the replacement frequency is inferior, and if the number of sets is large, the lotion tissue paper 1 of the present invention in which the basis weight and the lotion content are within a certain range has a large clip (high), in which case the carton is It doesn't become compact.

  The height of the carton 20 (hereinafter, also referred to as “carton height”) (see H in FIG. 1A) is preferably 65 mm or more and 95 mm or less, and more preferably 69 mm or more and 85 mm or less from the viewpoint of compactness. And more preferably 73 mm or more and 80 mm or less. If the height of the carton 20 is low, the lotion tissue paper 1 of the present invention having a large number of sets will be difficult to pinch (difficult to pull out). Conversely, if the carton 20 is easy to pinch, the number of sets will be small and the replacement frequency will be poor.

  At this time, the height of the carton 20 per set (carton height / the number of sets) is preferably 0.32 mm or more and 0.46 mm or less, and more preferably 0.34 mm or more and 0.41 mm or less. , 0.36 mm or more and 0.40 mm or less is more preferable. In this way, by setting the number of lotion tissue papers 1 to be within a certain range and realizing the height of the carton 20 according to the number of lotion tissue papers 1 to be filled, one lotion tissue paper 1 (one set) Ease of pulling out and downsizing of the carton 20 can be effectively improved. As in the present invention, when the number of sets of lotion tissue paper 1 is large, the height of the carton is made compact and the tactile sensation is improved. When inserting a clip having a large number of sets into the compact carton 20, the range is within the above range. By doing so, it is possible to improve the ease of picking up the tissue paper product 7 (the ease of pulling out) and the compactness of the carton 20.

The height of the carton 20, the dimension in the long side direction, and the dimension in the short side direction are external dimensions. The basis weight of the carton 20 is preferably 300 g / ^{m 2} or more 510 g / ^{m 2} or less, 340 g / ^{m 2} or more 480 g / ^{m 2,} more preferably less, more preferably 380 g / ^{m 2} or more 450 g / ^{m 2} or less. The paper thickness (per sheet) of the carton 20 is preferably 370 μm or more and 630 μm or less, more preferably 420 μm or more and 590 μm or less, still more preferably 470 μm or more and 550 μm or less. Within the above range, when the clip of the lotion tissue paper 1 of the present invention, which has a large number of sets and is tactile, is inserted into the carton 20, the carton 20 is not crushed, and the drawability is improved, and the drawer is pulled out. It is also possible to make it hard to break at the time.

(Upper space)
In the carton 20, the upper space (see W6 in FIG. 1B) from one set (the first set) from above the lotion tissue paper 1 is preferably 2 mm or more and 20 mm or less, and more preferably 5 mm or more and 17 mm or less. It is more preferably 8 mm or more and 14 mm or less. Like the present invention, even if the number of lotion tissue papers 1 is large, the carton height is made compact and the tactile feeling is good. Conversely, if the upper space is large, the carton 20 is unlikely to be compact, and the lotion tissue paper 1 is difficult to pinch (difficult to pull out). By setting the upper space in the above range, it is possible to make both the ease of pulling out the lotion tissue paper 1 (the ease of pinching when pulling out the lotion tissue paper 1) and the compactness of the carton 20 compatible.

  The upper space is measured as follows. The lid related to the outlet 21 of the carton 20 is removed. Next, as shown in FIG. 2, a JIS 15 cm ruler 70 a (for example, straight scale silver manufactured by Shinwa Measurement Co., Ltd., material stainless steel, 10 g) is orthogonal to the slit 5 of the window film 4 in the center of the window film 4. To put. After that, a JIS 15 cm ruler 70b (for example, straight scale silver manufactured by Shinwa Measurement Co., Ltd., material stainless steel, 10 g) is inserted along the slit 5 of the window film 4 and the length of the sinking by its own weight is measured. The same measurement is performed at both ends of the slit 5, and the average value at three positions is taken as the upper space. The window film 4 may be made of a material (paper or the like) other than the film.

[Drawer resistance]
The carton 20 and the lotion tissue paper 1 preferably have 3 to 15 sets of pull-out resistance (resistance when pulled out from the carton 20) of 0.61 N or more and 1.30 N or less, and 0.71 N or more and 1.20 N or less. Is more preferable and 0.81N or more and 1.10N or less is still more preferable.

  Further, in the carton 20 and the lotion tissue paper 1, it is preferable that the lower 3 to 20 sets of pull-out resistance (the resistance when pulled out from the carton 20) is 0.15 N or more and 0.60 N or less, and 0.20 N or more and 0. It is more preferably 50 N or less, further preferably 0.25 N or more and 0.40 N or less. The measuring method of the drawing resistance is as follows.

  First, 6 boxes of carton 20 containing lotion tissue 1 are prepared. Two pieces of paper (20 mm in the MD direction and 20 mm in the CD direction) 20a of the carton 20 are collected from one box. In one of the remaining five boxes, gently pull out and remove the first two sets of lotion tissue 1. Next, as shown in FIG. 3, the paper piece 20a of the carton 20 is placed in the widthwise center of the sheet from the third set so that the inner surface of the carton hits the lotion tissue paper 1 and the upper edge of the lotion tissue paper 1 is cartoned. It is sandwiched between 20 pieces of paper 20a. The paper piece 20a of the carton 20 is sandwiched with a clip 50 (for example, double clip fore edge width 19 mm manufactured by TANOSEE). The clip 50 has a height (length) of 11 mm and a width of 19 mm, and the paper piece 20a has a length of 12 mm and a width of 20 mm. The size of the clip 50 and the size of the paper piece 20a are not limited to these. In the sandwiched state, the Tensilon tensile tester is used to pull up the lotion tissue paper 1 at a pulling speed of 1000 mm / min, and the maximum resistance value taken until the lotion tissue paper 1 is pulled out from the carton 20 is measured. Similarly, 4 to 15 pairs and 3 to 20 pairs from the bottom are measured in the same manner, and the average value of each is taken as the drawing resistance. The remaining 4 boxes are also measured in the same manner, and the average value of 5 boxes is taken as the resistance.

  Here, the pull-out resistance of 3 to 15 sets from the top corresponds to the resistance of the tissue paper product 7 at the beginning of use, and the pull-out resistance of the lower 3 to 20 sets of resistance corresponds to the resistance at the end of use of the tissue paper product 7. .. If the resistance at the beginning of use is high, it will be difficult to pull out, and if the resistance at the end of use is low, dropback will occur. In this regard, by optimizing the resistance at the beginning of use and the resistance at the end of use as described above, the carton height is made compact and the tactile sensation is improved even if the number of sets of lotion tissue paper 1 is large as in the present invention. Among the favorable conditions, the lotion tissue paper 1 having a good tactile sensation can be easily pulled out at the beginning of use, and the occurrence of dropback can be reduced to facilitate the withdrawal.

[Static friction coefficient]
The carton 20 and the lotion tissue paper 1 preferably have a coefficient of static friction between the inner surface of the carton 20 and the lotion tissue paper 1 of 0.45 or more and 0.75 or less, and 0.50 or more and 0.70 or less. Is more preferable and 0.55 or more and 0.65 or less is still more preferable. Here, the coefficient of static friction is the coefficient of static friction between the lotion tissue paper 1 (as it is in two plies) and the inner surface of the carton 20. The method of measuring the coefficient of static friction is as follows.

  The above static friction coefficient can be measured using “Automatic friction tester NSF-100” manufactured by Nomura Shoji Co., Ltd. according to ISO 15359. According to ISO 15359, the static friction coefficient is measured three times using the same sample, and the first and third values are adopted. In the present invention, the first value is used.

  Specifically, it is measured as follows.

(1) First, the laminate of lotion tissue paper 1 is gently removed from the carton 20.

(2) Next, at the center of the bottom of the carton, a sample measuring 18 cm in the long side direction and 6 cm in the short side direction is cut and collected so that the inner surface of the carton (the surface in contact with the laminated body of the lotion tissue paper 1) becomes the measurement surface. Then, it is attached to the upper surface of the table 201 (see FIG. 4) of the measuring device 200. Some cartons have perforations or the like on the bottom of the carton, but in that case, measurement is performed with the perforations and the like included.

(3) Next, in the tissue laminate, the central portion (for example, when the number of sets is 210, the 105th set from the top is used. When wrinkles are contained in the 105th set, the number of sets is set to the front and back. Gently take one set (2 plies) of Lotion Tissue Paper 1) and put it in the original folded state (measure with four sheets stacked). Then, a sample of 18 cm × 6 cm is cut out and attached to the lower surface of the thread 202. At this time, the clip is made to be in the same direction as when inserting the clip into the carton with an actual machine, and both ends in the direction of 18 cm are cut out so as not to affect the measurement.

(4) When the table 201 is moved in the state where the sample of the carton and the sample of the lotion tissue paper 1 are brought into contact with each other after starting the measurement, the frictional force of the sample contact surface is limited with respect to the moving amount of the table 201. When the temperature reaches, the sample slips. The static friction coefficient is derived based on the value of the load cell 203 at this time. The static friction coefficient is measured three times using the same sample, but the first value is used. Then, the measurement is repeated 10 times and the average value is adopted.

  Here, as in the present invention, even when the number of sets of lotion tissue paper 1 is large, the height of the carton is made compact and the tactile sensation is improved, and the coefficient of static friction between the lotion tissue paper 1 and the inner surface of the carton 20 is improved. When the value is low (that is, the lotion content is small), the tactile sensation tends to be inferior, and when the value is high (that is, the lotion content is large), it becomes a snake state and is easily broken when pulled out. By setting the coefficient of static friction between the lotion tissue paper 1 and the inner surface of the carton 20 within the above range, the lotion tissue paper 1 has a good tactile sensation and also has a large number of groups and a good tactile sensation. When inserting 1 into the compact carton 20, the possibility of becoming a snake state can be reduced. It should be noted that the snake state means that when a clip (a laminated body of folded lotion tissue paper 1) is inserted into the carton 20, the laminated body becomes a snake state in the carton 20 (a state where the laminated body is vertically twisted in a side view). When the tissue is pulled out, it is easy to tear when the tissue is pulled out.

<Manufacturing method of lotion tissue paper>
The lotion tissue paper 1 of the present invention can be manufactured, for example, in the following order: (i) ply up and calendering, (ii) application and storage of a chemical solution, and (iii) interfolding.

(I) Ply-up and Calendar Processing FIG. 5 shows an example of the machine winder 100.

  Two primary rolls 11 (rolls after paper making) are set in the machine winder 100, and two plies are piled up so that the Yankee surface is on the outside. The original roll 12 is obtained. At this time, calendering may or may not be performed, but calendering is preferable.

  By the way, in the papermaking process, unlike the western paper, in the case of the lotion tissue paper 1 having a relatively low basis weight as described above, the retention is low. Therefore, when a sizing agent is added, the system is easily soiled and the productivity deteriorates. Cheap. When the FPR (first pass retention: primary yield rate) is low, the addition rate of the wet paper strength agent is increased when the primary web roll 11 for a relatively large coating amount as described above is made into paper. , The retention of the wet paper strength agent is low, and the inside of the system is easily soiled, and the productivity is likely to deteriorate. On the other hand, when the FPR is high, the formation is deteriorated, and when lotion is coated with a relatively large coating amount as described above, paper breakage occurs in a portion having a small amount of fibers, and the productivity is likely to deteriorate. The FPR is represented by FPR = {1- (concentration (mass%) of stock in white water dehydrated by wire) / (concentration (mass%) of stock in inlet)} × 100. .. That is, the FPR is the rate at which the raw materials in the paper stock accumulate on the wire. For example, the stock concentration of the inlet (the total concentration of the papermaking raw material (pulp) and other solid papermaking chemicals in the stock is 0.8% by mass, the concentration of the stock in the white water dehydrated by the wire is 0.3% by mass). In the case of, FPR = (0.8% -0.3%) / 0.8% × 100 = {1- (0.3% / 0.8%)} × 100 = 63%, that is, the raw material Of these, 63% will be paper, and 37% will be returned to raw materials instead of paper.

  In consideration of this point, in the papermaking process for forming the primary original roll 11, preferably, the sizing agent is not blended, and the addition amount (solid content) of the wet paper strength agent is higher than that of the pulp (solid content). ), 0.05% to 0.35% is preferable, 0.10% to 0.30% is more preferable, and 0.15 to 0.25% is further preferable. The FPR (first pass retention) is preferably 35% to 95%, more preferably 47% to 88%, even more preferably 60% to 82%.

(Ii) Application (Coating) and Storage of Chemical Solution The secondary original fabric roll 12 after calendering is coated with the chemical solution off-line by a chemical solution coating machine to obtain a third original fabric roll 13.

  By applying the chemical solution to the secondary original fabric roll 12 off-line, the chemical solution permeates into the tertiary original fabric roll 13 (see FIG. 6) to fix the secondary original fabric roll 13 by the storage period until processing as compared with online. It is also possible to apply a larger amount of the drug to the secondary original fabric roll 12 more uniformly than online.

  As a method of applying the chemical liquid to the secondary original fabric roll 12 off-line, a commonly used method, for example, inkjet printing, flexographic printing, gravure printing, roll coating, spray coating, or the like can be used, but it is flexographic printing. Preferably. In flexographic printing, a large amount of chemical liquid can be applied and the amount of application can be easily adjusted as compared with other printing methods.

  When the chemical solution is applied to the secondary original fabric roll 12, it is preferable to apply it to only one surface of the secondary original fabric roll 12 (either the inner winding side or the outer winding side). As a result, when wound up as the tertiary original fabric roll 13, the chemical solution applied to one surface of the tertiary original fabric roll 13 easily penetrates into the other surface in contact, and as a result, the secondary original fabric roll 12 It is possible to uniformly permeate and fix the chemical liquid into the third original fabric roll 13 rather than applying the chemical liquid to both the outer winding side and the inner winding side. In addition, it is possible to easily adjust the coating amount.

  By the way, in the storage period from the production of the secondary original fabric roll 12 (secondary original fabric) after the ply-up by the machine winder 100 to the coating, if the storage period is short, the effect of the wet paper strength agent is exhibited. It is difficult to cause a paper break when a lotion chemical solution having a relatively large coating amount is applied as described above. On the other hand, if the storage period is long, the difference in water content between the upper roll and the lower roll of the secondary original roll 12 becomes large, and the coating amount becomes uneven when a lotion chemical solution with a high coating amount is applied. The difference between

  In consideration of this point, the storage period from the production of the secondary original fabric roll 12 after the ply-up by the machine winder 100 to the coating is preferably 24 hours to 504 hours, more preferably 48 hours to 336 hours. 96 hours to 192 hours is more preferable.

By the way, the storage period of the third original fabric roll 13 (the storage time from the production of the third original fabric to the processing into a product) is relatively large as described above when the storage period is too short. When applying the lotion drug solution, the drug solution is not uniform, resulting in uneven quality. On the other hand, if the storage period is too long, when the lotion chemical liquid of a relatively large coating amount is applied as described above, the shape of the raw material collapses during storage, and stable production becomes impossible, resulting in poor productivity. In consideration of this point, the period for storing the third original fabric roll 13 is preferably 12 hours to 504 hours, more preferably 24 hours to 336 hours, and further preferably 96 hours to 192 hours.

  As a method of storing the third original roll 13, it is preferable to use the storage device described in Japanese Patent No. 5933384. FIG. 6 is a diagram showing an example of a storage device that stores the tertiary original fabric roll 13. For example, the wrapping film 111 is wound around the outer peripheral surface 13a of the third original fabric roll 13 coated with the chemical solution without any gap, and the tightening band 112 for tightening the outer peripheral surface 13a is wound on the wrapping film 111 and the third original fabric roll is wound. It is preferable to store the tertiary original roll 13 on the roll holder 113 on which the roll 13 is placed with the winding core horizontally installed with respect to the installation surface 117. According to this configuration, the outer peripheral surface 13a of the tertiary original fabric roll 13 is tightened not only by the wrapping film 111 but also by the tightening band 112. Morphological stability is dramatically increased. Therefore, as described above, when the lotion chemical liquid having a relatively large coating amount is applied, it is possible to effectively suppress the deformation of the third original fabric roll 13 after the application of the chemical liquid.

  The roll holder 113 has a receiving surface 114 that receives and holds the lower portion of the tertiary original fabric roll 13, and the receiving surface 114 is formed on a curved surface along the outer peripheral surface 13 a of the tertiary original fabric roll 13. Preferably. According to this structure, the lower portion of the tertiary original fabric roll 13 that is most easily deformed by its own weight is stably received and held by the curved receiving surface 114, so that the lower portion of the tertiary original fabric roll 13 is not deformed. Can be prevented. Thereby, the deformation of the third original fabric roll 13 can be suppressed more effectively, and the productivity becomes good.

  The roll holder 113 has a supporting portion 115 having a receiving surface 114 on the upper surface, and the supporting portion 115 is composed of a paper laminated plate in which a core material and face materials for preventing warpage of the core material are laminated. It is preferable that the face material forming the receiving surface 114 is provided on the upper surface of the above, while the face material is not provided on the lower surface of the support portion 115. According to this configuration, since the support portion 115 is made of a light paper laminated plate, it is possible to reduce the weight of the roll holder 113 and improve the handleability. Further, since there is no face material on the lower surface of the supporting portion 115 supporting the tertiary original fabric roll 13, when the load is applied from the tertiary original fabric roll 13, the supporting part 115 is favorably curved. On the other hand, if the lower surface of the support portion 115 has a surface material, the rigidity of the lower surface of the support portion 115 increases, so that the deformation of the lower surface of the support portion 115 is suppressed. In this respect, according to the above configuration, since the lower surface of the support portion 115 having no face material is favorably curved, the tertiary original roll 13 can be stored more stably. The roll holder 113 may have a leg portion 116 that floats and supports the support portion 115 from the installation surface 117.

(Iii) Interfolding process The lotion tissue paper 1 is obtained by processing the sheet of the third original roll 13 which is coated with a chemical solution and stored for a predetermined period.

  The processing of the third original fabric roll 13 can be performed by a known interfolder processing, and the sheets of the respective tertiary original fabric rolls 13 are folded and stacked, and alternately laminated to be processed, thereby pulling out in a pop-up type. It is preferred to obtain a possible lotion tissue paper. If the sheet can be pulled out in a pop-up manner, the sheet of each of the tertiary original rolls 13 may be folded at the center by V-shape folding or Z-shape folding. A preferred example of the folding method will be described later in detail with reference to FIGS. 7A to 7D.

  Examples of the interfolder include a rotary interfolder and a multi-stand interfolder. Here, particularly in the case of a multi-stand type interfolder, the take-out direction is the CD direction, which has weak strength, so that the tissue paper in a portion where a large amount of the chemical liquid has penetrated tends to be easily torn. In this respect, since the lotion tissue paper 1 of the present invention has the above-mentioned characteristics, it is possible to reduce the problem that the multi-stand interfolder easily breaks.

  Next, FIGS. 7A to 7D are schematic views showing a preferred example of folding, in which the upper portion of the clip 50 (first to fifth sheets from the top) is folded parallel to the long side direction of the carton 20. It is the schematic sectional drawing which looked at. FIG. 7E is a diagram showing a folding method according to a reference example. In FIG. 7A to FIG. 7D, one sheet (one set) of lotion tissue paper 1 is shown by one line for the sake of clarity. In the following description, the same reference numerals may be given to components that may be the same, and the description may be omitted. Further, in the following description, the “folded portion” is a concept including a folding line (vertex in cross section) when folded and a portion connected to the folding line. In the “mountain fold” and the “valley fold”, the fold method in which the outside is convex is the “mountain fold”, and the fold method in which the inside is convex is the “valley fold”. At this time, the "outer side" means that the lower surface SL of the main part of the lower side of the lotion tissue paper 1 (the part that is folded and becomes lower than the next lotion tissue paper 1) is taken out from the carton 20. The direction is upward.

  In the reference example, as shown in FIG. 7E, all lotion tissue papers 1-1P to 1-5P are folded only once (folded along the long side direction) and one lotion adjacent to each other in the vertical direction. The tissue papers 1-1P to 1-5P are folded in such a manner that the end portions of the tissue papers 1-1P to 1-5P are arranged between the upper and lower portions forming the other folded portion.

  On the other hand, in a preferred example of folding, as shown in FIGS. 7A to 7D, the first lotion tissue paper 1-1 is folded twice or more along the long side direction. Thereby, the ease of pulling out the first lotion tissue paper 1 from the slit 5 of the carton 20 (when taking out along the long side direction) is greatly improved as compared with the reference example.

  In a preferred example of folding, as shown in FIGS. 7A to 7D, the first lotion tissue paper 1-1 is folded such that the folding portion is located below the outlet 21 of the carton 20. The lower side of the outlet 21 is an area that overlaps the outlet 21 in a top view. As a result, when the first lotion tissue paper 1 is pulled out from the outlet 21 of the carton 20, the folded portion (at least 4 plies) is pulled out first, so that the first lotion tissue paper 1 is pulled out. It is possible to effectively improve the difficulty of breaking the time.

  Specifically, the example shown in FIG. 7A is an example in which the first sheet from the top (first sheet at the top) is folded inward. In this case, except for the first lotion tissue paper 1-1 (the second to fifth lotion tissue papers 1-2 to 1-5 in the figure) are folded in the same manner as the above-mentioned reference example. .. The first lotion tissue paper 1-1 has folding parts 700 and 702 that are mountain-folded along the long side direction. The folding part 700 is formed by being folded at about half the position in the short side direction, and is located below the folding part 702. The folded portion 702 is formed by being folded at a position of about 1/4 in the short side direction. The folded portion 702 is folded such that the end portion 70 is located inside the folded portion 700 (lower side than the upper portion forming the folded portion 700 in the vertical direction).

  In other words, in the example shown in FIG. 7A, the first lotion tissue paper 1-1 is viewed from the long side direction of the carton 20 (longitudinal direction of the slit 5), and from the lower end to the left side (the left side of the figure, the first 1 side example, hereinafter the same) extends from the right side (right side of the drawing, second side example, the same below), and is folded back to the left side and the upper side at the folding part 700 (one example of the first folding part), The remaining portion that has been folded back extends from the right side to the left side and is folded back to the right side and the lower side at a folding portion 702 (an example of a second folding portion). The second lotion tissue paper extends from the right side to the left side from the lower end when viewed in the direction of the long side of the carton 20, and is a normal center folded portion (an example of a fourth folded portion). It is folded back to the right and up. The lower end of the first sheet is located inside the normal center folded portion of the second sheet, and the end portion 70 (upper end) of the first sheet and the upper edge of the second sheet are located inside the folded portion 700.

  The example shown in FIG. 7B is an example in which the first sheet (topmost sheet) from the top is folded outward. In this case, other than the first lotion tissue paper 1-1A (the second to fifth lotion tissue papers 1-2 to 1-5 shown in the figure) are folded in the same manner as the above-mentioned reference example. .. The first lotion tissue paper 1-1A has a folded portion 700 that is mountain-folded along the long side direction and a valley portion 702A that is valley-folded along the long side direction. The folding part 700 is formed by being folded at about half the position in the short side direction, and is located below the folding part 702A. The folded portion 702A is formed by being folded at a position of about 1/4 in the short side direction. The folded portion 702A is folded such that the end portion 70 is located outside the folded portion 700 (upward in the vertical direction, above the upper portion forming the folded portion 700).

  In other words, in the example shown in FIG. 7B, the first lotion tissue paper 1-1A extends from the left side to the right side when viewed in the long side direction of the carton 20, and the folding part 700 (first Is folded back to the left side and the upper side at an example), and the rest of the folded portion extends from the right side to the left side, and is folded back to the right side and the upper side at a folded section 702A (an example of the second folded section). The second lotion tissue paper 1-2 extends from the right side to the left side from the lower end when viewed in the long side direction of the carton 20, and has a normal central folding part (fourth folding part). In one example), it is folded back to the right side and the upper side. Then, the lower end of the first sheet is located inside the normal folded portion of the second sheet, the upper end of the second sheet is located inside the folded portion 700, and the first lotion tissue paper 1-1A The end 70 (upper end) is located on the uppermost side of the clip.

  The example shown in FIG. 7C is an example in which the first sheet (topmost sheet) and the second sheet from the top are folded together. In this case, except for the first lotion tissue paper 1-1B and the second lotion tissue paper 1-2B (the illustrated third to fifth lotion tissue papers 1-3 to 1-5), It is folded in the same manner as the above-mentioned reference example. The first lotion tissue paper 1-1B has folded portions 700B and 704 (an example of first and second folded portions) that are mountain-folded along the long side direction, and valley-folded along the long side direction. It has a folded portion 706 (an example of a third folded portion). The folding part 700B is formed by being folded at a position of about 1/4 in the short side direction, and is located below the folding parts 704 and 706. The folded portion 704 is formed by being folded at a position of about ½ in the short side direction. The folded portion 706 is formed by being folded at a position of about 1/4 in the short side direction. The folded portion 704 is folded such that the end portion 70 is located inside the folded portion 700B (lower side than the upper portion forming the folded portion 700B in the vertical direction).

  Moreover, in the example shown in FIG. 7C, the second lotion tissue paper 1-2B is left-right inverted in the left-right direction of the figure with respect to the lotion tissue paper 1-1A described above. Specifically, the second lotion tissue paper 1-2B is folded in a mountain shape along the long side direction 800 (an example of a fourth folded portion) and is folded in a valley direction along the long side direction. 802 (an example of a fifth folded portion). The folding part 800 is formed by being folded at about half the position in the short side direction, and is located below the folding part 802. The folded portion 802 is formed by being folded at a position of about 1/4 in the short side direction. The folded portion 802 is folded such that the end portion 80 is located outside the folded portion 800 (upward in the vertical direction, above the upper portion forming the folded portion 800).

  Further, in the example shown in FIG. 7C, the first lotion tissue paper 1-1B and the second lotion tissue paper 1-2B have the lower end 71 of the lotion tissue paper 1-1B. -2B inside the folded part 800, the folded part 802 of the lotion tissue paper 1-2B is located inside the folded part 700B of the lotion tissue paper 1-1B, and the upper end of the lotion tissue paper 1-2B. 80 is located inside the folded portion 704 of the lotion tissue paper 1-1B, and the folded portion 706 of the lotion tissue paper 1-1B is located inside the folded portion 802 of the lotion tissue paper 1-2B. Folded into

  In other words, in the example shown in FIG. 7C, the first lotion tissue paper 1-1B extends from the left side to the right side from the end portion 71 (lower end) when viewed in the long side direction of the carton 20, and is folded. The portion 700B is folded back to the left side and the upper side, and the remaining portion that is folded back extends from the right side to the left side, and is folded back to the right side and the lower side at the folding portion 704, and the further remaining portion is folded back. Extends from the left side to the right side and is folded back to the left side and the lower side at the folding portion 706. The second lotion tissue paper 1-2B is viewed from the long side direction of the carton 20, and from the lower end, It extends from the right side to the left side, is folded back to the right side and the upper side at the folding part 800, and the rest of the folded back portion is extended from the left side to the right side and is folded back to the left side and the upper side at the folding part 802. The first end 71 (lower end) is located inside the folding part 800, the folding part 802 is located inside the folding part 700B, and the second end 80 (upper end) is located inside the folding part 704. ) Is located, and the folding part 706 is located inside the folding part 802.

  The example shown in FIG. 7D is another example in which the first and second sheets from the top are folded twice or more. In this case, other than the first lotion tissue paper 1-1C and the second lotion tissue paper 1-2C (the illustrated third to fifth lotion tissue papers 1-3 to 1-5), It is folded in the same manner as the above-mentioned reference example. The first lotion tissue paper 1-1C has a folded portion 708 that is valley-folded along the long side direction, folded portions 710 and 712 that are mountain-folded along the long side direction, and along the long side direction. And a folded portion 714 folded in a valley. The folded portion 708 is formed by being folded at a position of less than ¼ in the short side direction, and is located below the folded portions 710 to 714. The distance from the apex (fold line) of the folded portion 708 to the apex (fold line) of the folded portion 710 is approximately 1/2 in the short side direction, and the folded portion 712 is formed so as to be located near the center of the carton 20. It The second lotion tissue paper 1-2C has folding parts 800C and 804 that are mountain-folded along the long side direction. The folded portion 800C is formed by being folded at a position of about ½ in the short side direction. The folded portion 804 is formed by being folded at a position of about 1/4 in the short side direction. The folded portion 804 is folded such that the end portion 80 is located inside the folded portion 710 (lower side than the upper portion forming the folded portion 710 in the vertical direction).

  In other words, in the example illustrated in FIG. 7D, the first lotion tissue paper 1-1 extends from the right side to the left side from the lower end when viewed in the long side direction of the carton 20, and the folded portion 708 (first Of the folding part), and the remaining part of the folded back part extends from the left side to the right side, and is folded to the left side and the upper side of the folding part 710 (an example of the second folding part). The folded back remaining portion extends from the right side to the left side, is folded back rightward and downward at a folding portion 712 (an example of a third folding portion), and the folded back remaining portion is Extends from the right side to the left side, and is folded back to the left side and the lower side at a folding portion 714 (an example of the last folding portion). Further, the second lotion tissue paper 1-2C extends from the right side to the left side from the lower end when viewed in the long side direction of the carton 20, and is folded at the folded portion 800C (an example of the fourth folded portion) on the right side. Moreover, the remaining part that is folded back to the upper side extends from the left side to the right side, and is folded back to the left side and the lower side at the folding part 804 (an example of the fifth folding part). The folding part 708 is located inside the folding part 800C, the folding part 804 is located inside the folding part 710, and the folding parts 712 and 714 are located above the folding part 804.

Here, as described above, even in the case of the lotion tissue paper 1 that is compact, has a large number of sets, and has a large coating amount, by realizing the folding method shown in FIGS. You can improve the difficulty of breaking. That is, in the case of the usual folding method as shown in FIG. 7E, when pulling out the first set from the top, one set (two plies) is pulled out. On the other hand, in the case of the folding method shown in FIG. 7A (substantially the same in the case of the folding methods shown in FIGS. 7B to 7D), the folding portion 702 needs to be pulled out, and therefore the folding portion 702 The upper side and the lower side of the folded portion 702 are pinched together and pulled out. Therefore, four plies, which is twice as large as that in FIG. 7E, are pulled out, and the strength is also improved. As a result, in the case of the folding method shown in FIG. 7A (substantially the same in the case of the folding methods shown in FIGS. 7B to 7D), compared to the case of the folding method shown in FIG. 7E, the first lotion tissue It is possible to effectively improve the resistance to tearing when the paper 1 is pulled out. In the example shown in FIG. 7C, the first lotion tissue paper 1-1B and the second lotion tissue paper 1-2B are pulled out at the same time, and 6 plies, which is three times that in FIG. 7E, is used. It will be pulled out, and the strength will be further improved.
<Summary of usefulness of tissue paper products and lotion tissues>
By the way, since lotion tissues are generally high-grade products, the paper thickness is often increased, and in order to improve the appearance, they are generally placed in a high (large) carton. .

  However, in recent years, from the viewpoint of physical distribution, storage location, size of shelves in sales floors, etc., compact products having a large capacity have been preferred.

  In this respect, in the case of ordinary tissue paper, the carton can be made compact by reducing the paper thickness with a calendar.

  Also, in the case of ordinary tissue paper, the tissue paper and the carton have a low friction coefficient, so that the clip can be inserted into the carton relatively easily.

  On the other hand, in the case of lotion tissue paper, the coefficient of static friction between the lotion tissue paper and the inner surface of the carton is high, and when the clip is inserted into the carton, the clip is likely to be in a snake state and easily broken when pulled out. ..

  Even in the case of lotion tissue paper, if the basis weight is made low and the clip volume is made low, the snake state is less likely to occur, but the feel of lotion tissue paper is poor.

  In this respect, according to the tissue paper product 7 of the present invention, as described above, the basis weight can be set in the above range, and the static friction coefficient can be kept in the above range, so that the tactile feel is good. It is possible to reduce the possibility that the clip will be in a snake state when the clip 50 is inserted into the carton 20 while maintaining the basis weight such that

  Here, the lotion tissue paper folded by the rotary type interfolder is softly folded in the sheet (the density of the clip is low), so that when the clip is inserted into the carton, it is unlikely to be in a snake state. However, the lotion tissue paper folded by the rotary interfolder, on the other hand, becomes bulky because it is softly folded, and the carton cannot be made compact.

  On the other hand, in the case of lotion tissue paper folded with a multi-stand type interfolder, it can be folded firmly (the density of clips is high), so the carton height can be made compact, but when the clip is inserted into the carton, the clip is in a snake state. It is easy to become. This is a problem when folding lotion tissue paper.

  In this respect, according to the tissue paper product 7 of the present invention, as described above, even when the lotion tissue paper 1 is folded by the multi-stand type interfolder, the static friction coefficient can be adjusted within the above range, so that the carton 20 can be adjusted. It becomes difficult for the clip 50 to be in a snake state when it is inserted into. As a result, it is possible to reduce the possibility of the clip becoming a snake state when inserting the clip into the carton while making the carton height compact.

  Further, in the case of lotion tissue paper 1, if the paper thickness is reduced with a calendar, the specific volume becomes low, so it becomes difficult for the lotion to permeate the tissue evenly, and the chemical liquid becomes non-uniform (the portion with a large amount of chemical liquid is less. Part comes out). As a result, the strength of the portion where a large amount of the chemical liquid has penetrated is weakened, and the lotion tissue paper 1 is easily broken. In particular, in the case of a multi-stand type interfolder, since the take-out direction is the weak CD direction, the portion where a large amount of the chemical has penetrated is likely to break.

  On the other hand, according to the tissue paper product 7 of the present invention, as described above, the tensile breaking elongation (longitudinal elongation) at the time of DMDT measurement after coating the chemical liquid is adjusted to a predetermined range, so that the chemical liquid is uniform. It becomes easy to penetrate into. As a result, it is possible to solve a problem (easiness of breakage) caused by uneven penetration of the chemical liquid.

  That is, according to the tissue paper product 7 of the present invention, it is possible to reduce the problem that the paper is easily torn even if the paper thickness is relatively low within the range where the tactile sensation due to the reduction of the basis weight is not impaired. If the paper thickness can be made relatively low, the carton height can be made compact even if the number of sets is relatively large.

  Thus, according to the tissue paper product 7 of the present invention, despite the relatively large number of sets, the carton height is relatively low and compact, the sheet is relatively difficult to tear, and the tactile feel is relatively good. A lotion tissue 1 can be included.

  Also, with respect to the lotion tissue paper 1, even if the number of sets is relatively large, it is possible to contribute to downsizing of the carton height, the sheet is relatively difficult to tear, and the touch feeling is relatively good.

  By the way, when the coating amount of the chemical liquid on the lotion tissue paper 1 is set relatively high as described above, if the paper thickness is too low on the calendar, it feels flickering. In addition, since the strength is low, when the lotion tissue paper 1 is compressed by the pull unit when processed by the multi-stand type interfolder, the paper is likely to tear. For example, when the first lotion tissue paper 1 is folded from the top, the first lotion tissue paper 1 and the second lotion tissue paper 1 are folded (for example, in FIG. 7B, the folded portion on the first sheet). 702A and a portion of the second sheet that contacts the folded portion 702A) are torn along the MD direction.

  On the other hand, if the compression in the pull unit is weakened, tearing of the paper is suppressed, but the clip becomes bulky, and when the clip is inserted into the carton, it may not be inserted.

  Further, when the content of the chemical liquid is relatively high as described above, when the online coating is performed as in Japanese Patent No. 4676564 (coating is performed when the ply is made into two plies with a winder), the paper is easily broken and the productivity is increased. Is rather worse.

  On the other hand, according to the tissue paper product 7 of the present invention, as described above, even when the coating amount of the chemical liquid is relatively large, the clip insertion direction (DMDT), the drawing direction (DCDT), the strength ratio (DMDT). By setting / DCDT) within a certain range by beating or the like, it is possible to improve the quality (touch feeling, resistance to tearing).

  In addition, by using the third original roll 13 of offline coating, wrinkles such as online coating (folding with an interfolder while coating as in JP 2016-60982) are less likely to occur, and the paper thickness ( The volume of the clip) can be set within a certain range.

  Further, by using the third original roll 13 for offline coating, it is possible to reduce paper breakage during coating and improve productivity.

  Further, by appropriately setting the storage period from the production of the secondary original roll 12 (secondary original fabric) after the ply-up by the machine winder 100 to the coating as described above, the disconnection at the time of coating can be achieved. It is possible to reduce unevenness in the coating amount while reducing the amount of paper.

  Further, by appropriately setting the period for storing the third original fabric roll 13 (the storage time from the production of the third original fabric to the processing into a product) as described above, unevenness in the coating amount can be reduced. At the same time, the collapse of the shape of the original fabric during storage can be reduced, and the productivity becomes good.

  Therefore, according to the present invention, even if the number of sets is large, it is possible to efficiently manufacture (produce) so as to be compact and to have good quality (feeling and resistance to tearing).

  Hereinafter, the present invention will be described in detail with reference to examples. The present invention is not limited to the examples shown below.

<Examples 1 to 33, Comparative Examples 1 to 16>
As shown in Tables 1 to 4, a plurality of types of lotion tissue papers (hereinafter abbreviated as “tissues”) having different basis weights, paper thicknesses, specific volumes, etc. are manufactured, and a monitor (human The following evaluations by Each tissue was stacked in a predetermined number of sets with a multi-stand type interfolder so that the tissue was pulled out in the CD direction, and housed in various cartons.

  And the softness of the tissue, uneven texture, difficulty in tearing the tissue (including when pulling out), ease of pulling out when pulling out the tissue (upward pulling resistance, that is, starting to use), no dropback (lower pulling resistance) That is, after use, ease of pinching when pulling out tissue (upper space), replacement frequency (number of sets), compactness of carton (carton height), each productivity (dirt in the system during paper making process, paper making process) The effect of the wet paper strength agent to be blended, paper breakage at the time of coating due to deterioration of texture, good original fabric shape after coating, and paper breakage due to reduction in strength) was evaluated in five levels.

  The basis weight of the sheet was measured as follows.

  Sheet basis weight: Measured according to JIS P 8124 and converted per sheet.

  Paper thickness: Measured using a thickness gauge (dial thickness gauge "PEACOCK" manufactured by Ozaki Seisakusho Co., Ltd.). The measurement conditions were a measurement load of 250 gf, a probe diameter of 30 mm, a sample was placed between the probe and the measuring table, and the gauge was read when the probe was lowered at a speed of 1 mm or less per second. In addition, one measurement was performed by stacking ten 1-ply sheets (5 sets of two-ply sheets), and the measurement was repeated 10 times to average the measurement results. Moreover, when the paper thickness of the carton was measured, it was performed with one sheet.

  The basis weight, paper thickness, strength, pull-out resistance, etc. were measured after maintaining the equilibrium state under the temperature and humidity conditions (23 ± 1 ° C., 50 ± 2% RH) specified in JIS P 8111.

  The following evaluations were carried out by 20 monitors.

  Tissue sensation: Tissue sensation (softness) when the tissue pulled out from the carton was used by unfolding (blowing nose, wiping dirt, etc.) and voluminous sensation when held in hands were evaluated. In addition, unevenness in touch was evaluated.

  Difficulty in tearing when the tissue is pulled out: The difficulty in breaking when the tissue was pulled out from the carton was evaluated.

  No dropback: At the end of use, the tissue was evaluated for dropback when used.

  Ease of pulling out tissue when pulling out tissue: The ease of pinching when pulling out the first set of tissue from the carton was evaluated.

  Replacement frequency (set number): The replacement frequency of the tissue paper product was evaluated.

  Carton compactness: The carton (tissue paper product) compactness was evaluated.

  Each productivity was evaluated by actual production (trial production).

  The evaluation was "3", which was equivalent to the conventional product, "4" when it was slightly better, and "5" when it was better. Similarly, "2" means inferior to "3", and "1" means remarkably inferior. If the evaluation is 3 to 5, there is no problem.

  From Table 1 to Table 4, according to the present invention, the texture of the tissue, uneven texture, resistance to tearing when pulling out the tissue, ease of pulling out when pulling out the tissue, no dropback, ease of pinching when pulling out the tissue. It can be seen that a tissue having good exchange frequency, compactness of carton, and productivity was obtained.

1 Lotion Tissue paper 4 Window film 5 Slit 7 Tissue paper product 12 Secondary original roll 13 Third tertiary roll 20 Carton 21 Drawer 700B Folding part 704 Folding part 706 Folding part 800 Folding part 802 Folding part

  The present disclosure relates to methods of making tissue paper products.

  There is known a technique for appropriately setting the pullout resistance of the tissue paper from the carton.

JP 2012-24548A JP, 2014-28629, A

  However, in the conventional technology as described above, the carton height can be made compact even if the number of sets of lotion tissue paper is relatively large, the lotion tissue paper can be easily pulled out, and the quality of the lotion tissue paper (feeling and tearing) It is difficult to manufacture a tissue paper product having a good hardness (including pulling out) with good productivity.

  Therefore, in one aspect, the present invention realizes a compact carton height even when the number of sets of lotion tissue paper is relatively large, makes it easy to pull out the lotion tissue paper, and makes it difficult to tear the lotion tissue paper when it is pulled out. It is an object of the present invention to produce a tissue paper product having good paper quality (touch feeling, tear resistance (including pulling out time)) with good productivity.

  In one aspect, the following solution is provided.

(1) A method for manufacturing a tissue paper product, which is manufactured by stacking a plurality of sets of two-ply sheets of chemical-coated lotion tissue paper in a carton, which is a storage box having a substantially rectangular parallelepiped shape. hand,
The lotion tissue paper is
The basis weight per sheet ply is 12 g / m2 or more and 20 g / m2 or less,
The number of groups is 182 or more and 250 or less,
DCDT is 0.5 N / 25 mm or more and 2.3 N / 25 mm or less,
DMDT is 2.2 N / 25 mm or more and 4.7 N / 25 mm or less,
DMDT / DCDT is 1.9 or more and 4.4 or less,
Accommodated in the carton having a height of 65 mm or more and 95 mm or less,
3 to 15 sets of pull-out resistance from 0.61N to 1.30N,
The pull-out resistance of 3 to 20 pairs from the bottom is 0.15N or more and 0.60N or less,
The content of the chemical liquid per sheet ply is 1.7 g / m 2 or more and 3.7 g / m 2 or less,
The said manufacturing method manufactures the primary original fabric with a papermaking equipment, manufactures the secondary original fabric roll by plying up with the winder with respect to the produced primary original fabric, and produces the said secondary original fabric. The roll is coated with a chemical solution to produce a third original fabric, and the produced third original fabric is processed by a multi-stand type interfolder so that the lotion tissue paper is pulled out in the CD direction. 1. A method of manufacturing a tissue paper product, which comprises box-packing a laminate in which a plurality of sets of the lotion tissue paper are laminated while being folded.

  (2) In the configuration of (1) above, the storage period from the production of the secondary web to the coating is set to 24 hours or more and 504 hours or less.

  (3) In the configuration of (1) or (2), the storage time from the production of the third original fabric to the processing into a product is 12 hours or more and 504 hours or less.

(4) In the configuration according to any one of (1) to (3), the laminated body is formed in a state where the first set of the lotion tissue paper is folded twice or more along the long side direction,
The first set of the lotion tissue paper may be folded such that the folding portion is located below the outlet of the carton.

(5) In the configuration of (4) above, the first set of the lotion tissue paper extends from the lower end to the first side to the second side when viewed in the long side direction of the carton. The folded portion is folded back to the first side and the upper side, and the remaining folded back portion extends from the second side to the first side, and is folded back to the second side and the lower side at the second folded portion. ,
The second set of lotion tissue paper extends from the second side to the first side from the lower end when viewed in the long side direction of the carton, and is folded back to the second side and the upper side at the fourth folding portion. And
The lower end of the first set of the lotion tissue paper is located inside the fourth folding part, and the upper end of the first set of the lotion tissue paper and the second set of the lotion tissue paper are located inside the first folding part. Is located at the upper end of.

(6) In the configuration of (4) above, the first set of the lotion tissue paper extends from the lower end to the first side to the second side when viewed in the direction of the long side of the carton. The folded portion is folded back to the first side and the upper side, and the remaining portion that is folded back extends from the second side to the first side, and the second folded portion is folded back to the second side and the upper side.
The second set of lotion tissue paper extends from the second side to the first side from the lower end when viewed in the long side direction of the carton, and is folded back to the second side and the upper side at the fourth folding portion. And
The lower end of the first set of the lotion tissue paper is located inside the fourth folding portion, the upper end of the second set of the lotion tissue paper is located inside the first folding portion, and The upper end of the first set is located on the uppermost side of the laminate.

(7) In the configuration of (4) above, the first set of the lotion tissue paper extends from the lower end to the first side to the second side when viewed in the direction of the long side of the carton. The folded portion is folded back to the first side and the upper side, and the remaining folded back portion extends from the second side to the first side, and is folded back to the second side and the lower side at the second folded portion. , The further remaining portion that has been folded back extends from the first side to the second side, and is folded back to the first side and the lower side at the third folding portion,
The second set of lotion tissue paper extends from the second side to the first side from the lower end when viewed in the long side direction of the carton, and is folded back to the second side and the upper side at the fourth folding portion. , The remaining portion that has been folded back extends from the first side to the second side, and is folded back to the first side and the upper side at the fifth folding portion,
The lower end of the first set of the lotion tissue paper is located inside the fourth fold, the fifth fold is located inside the first fold, and the inside of the second fold is inside the fourth fold. The upper end of the second set of the lotion tissue paper is located, and the third folding part is located inside the fifth folding part.

(8) In the configuration of (4) above, the first set of the lotion tissue paper extends from the lower end to the first side as viewed from the long side direction of the carton, and The folded portion is folded back to the second side and the upper side, and the remaining portion that is folded back extends from the first side to the second side, and the second folded portion is folded back to the first side and the upper side. The further remaining portion that has been extended from the second side to the first side is folded back to the second side and the lower side at the third folding portion, and the further remaining portion that has been folded back is the first portion. It extends from the side to the second side, and is folded back to the first side and the lower side at the last folding part,
The second set of lotion tissue paper extends from the second side to the first side from the lower end when viewed in the long side direction of the carton, and is folded back to the second side and the upper side at the fourth folding portion. , The remaining portion that has been folded back extends from the first side to the second side, and is folded back to the first side and the lower side at the fifth folding portion,
The first fold is located inside the fourth fold, the fifth fold is located inside the second fold, and the fifth fold is above the fifth fold. The third fold and the last fold are located.

  (9) In any one of the above (1) to (8), the sizing agent is not blended in the papermaking process, and the addition amount of the wet paper strength agent is 0.05% with respect to pulp in comparison of solids. It is characterized by being 0.35% or less and FPR (fast path retention) being 35% or more and 93% or less.

  (10) In any one of the configurations (1) to (9), the lotion tissue paper has a content of the chemical liquid of 10% by mass or more and 22% by mass or less.

  (11) In the configuration of any of (1) to (10) above, the carton is characterized in that an upper space from one set from above the lotion tissue paper is 2 mm or more and 20 mm or less.

  In one aspect, according to the present invention, even if the number of sets of lotion tissue paper is relatively large, the carton height can be made compact, the lotion tissue paper can be easily pulled out, and the quality of the lotion tissue paper (feeling, tearing) can be obtained. It is possible to manufacture a tissue paper product having good dullness (including during withdrawal) with good productivity.

It is a perspective view of the tissue paper product of this invention. It is the perspective view which looked through the inside of the tissue paper product of the present invention. It is an explanatory view of various sizes of a drawer of a carton, and is a top view of a tissue paper product of the present invention. It is explanatory drawing of the measuring method of an upper space. It is explanatory drawing of the measuring method of drawing resistance. It is explanatory drawing of the measuring method of a static friction coefficient. It is drawing which shows an example of the machine winder used for manufacture of the lotion tissue paper of this invention. It is drawing which shows an example of the storage device used for manufacture of the lotion tissue paper of this invention. It is a schematic diagram showing a preferred example of how to fold. It is a schematic diagram showing a preferred example of how to fold. It is a schematic diagram showing a preferred example of how to fold. It is a schematic diagram showing a preferred example of how to fold. It is a schematic diagram showing a reference example of how to fold.

  Hereinafter, modes for carrying out the present invention will be described in detail.

<Lotion tissue paper>
FIG. 1A is a perspective view of a tissue paper product 7 including a lotion tissue paper 1 of the present invention. FIG. 1B is a perspective view in which the inside of the tissue paper product 7 of the present invention is seen through. In FIG. 1B, the lotion tissue paper 1 in the carton 20 is shown schematically in dotted lines.

The lotion tissue paper 1 is composed of a two-ply sheet, and is a base paper that is calendered and coated with a chemical solution (also referred to as “lotion chemical solution”). The lotion tissue paper 1 of the present invention is adjusted in paper thickness, basis weight per sheet ply, softness TS7, content of chemical liquid, and the like. The lotion tissue paper 1 of the present invention is housed in a carton 20 as shown in FIG. 1A. In the present invention, the longitudinal direction is a direction parallel to the outlet 21 of the carton 20, and the lateral direction is a direction orthogonal to the longitudinal direction. Further, with respect to the carton 20, the lotion tissue paper 1 and the like, the terms long side direction and short side direction are also used.
In the following description, unless otherwise specified, the properties of the lotion tissue paper 1 is Ru characteristics der of per set lotion tissue paper 1 (per 2 plies).

[Paper thickness, basis weight]
In lotion tissue paper of the present invention, the sheet thickness is, 0.50 mm / 5 or more sets 0.90 mm / 5 pairs or less, preferably not more than 0.55 mm / 5 or more sets 0.82 mm / 5 pairs, and more preferably 0.60 mm / 5 or more sets 0.75 mm / 5 pairs less. The above paper thickness indicates the paper thickness when 5 sets of 1 set of 2 ply lotion tissue papers are stacked. Here, as in the present invention, even if the number of sets of lotion tissue paper 1 is large, the height of the carton is made compact and the tactile sensation is improved. The upper space becomes large, making it difficult to pinch the tissue when pulling it out. If it is high, the number of sets is large and the carton 20 cannot be made compact. In this respect, by setting the paper thickness within the above range, it is possible to make the carton 20 compact while improving the touch.

In the lotion tissue paper 1 of the present invention, the basis weight per ply of the sheet is 12 g / m ² or more and 20 g / m ² or less, preferably 14 g / m ² or more and 19 g / m ² or less, and 16 g. / M ² or more and 18 g / m ² or less is more preferable. As in the present invention, when the lotion tissue paper 1 has a large number of sets and the carton height is made compact and the tactile sensation is improved, when the lotion content falls within a certain range and the basis weight becomes low, Since the pulp content of the product becomes small, the strength (particularly DMDT) becomes low, the number of paper breaks becomes large, and the productivity decreases. If the basis weight is high, the number of sets is large and the carton cannot be made compact. By setting the paper thickness of the lotion tissue paper 1 and the basis weight per ply of the sheet within the above range, softness and strength, compactness of the carton 20 and the number of sets can be compatible. The above-mentioned basis weight and paper thickness are those of the lotion tissue paper 1 itself, and mean the basis weight and paper thickness of the lotion tissue paper 1 in the state in which the chemical solution is applied.

[TS7]
In the lotion tissue paper 1 of the present invention, the maximum peak intensity (TS7) of the spectrum including 6500 Hz, which is automatically acquired by the software on the tissue softness measuring device TSA, is preferably 8 dBV2 rms or more and 15 dBV2 rms or less, and 9 dBV2 rms. It is more preferably 13 dBV 2 rms or less, and further preferably 10 dBV 2 rms or more and 12 dBV 2 rms or less. Like the present invention, the TS7 is an index of the softness of the lotion tissue paper 1 while the carton height is made compact and the tactile feel is good even if the number of sets of the lotion tissue paper 1 is large. When the amount is within the range of the present invention and the grammage is high, the pulp content per grammage is large, so that TS7 becomes high, the feel as a lotion tissue paper may be poor, and the carton height may not be compact. When TS7 is low, the tissue paper product 7 becomes too soft, and when the carton 20 having a large number of sets and a compact carton is used, the lotion tissue paper 1 may be easily torn when pulling out the lotion tissue paper from the carton. However, there are cases where the number of paper breaks increases during processing, resulting in poor productivity. By setting TS7 within the above range, the softness and strength (hardness to break) of the lotion tissue paper 1 are maintained in a well-balanced manner.

  Note that TS7 means the lotion tissue paper 1 itself, and means the TS7 of the lotion tissue paper 1 in the state in which the chemical solution is applied.

  The measuring method of TS7 using the tissue softness measuring apparatus TSA and the measuring apparatus used for this are described in detail, for example, in JP 2013-236904 A.

[Specific volume]
Specific volume of the lotion tissue paper of the present invention is preferably set per 3.0 cm ³ / g or more 5.7cm is ³ / g or less, 3.4cm ³ / g or more 5.2 cm ³ / g or less It is more preferable that it is not less than 3.6 cm ³ / g and not more than 4.7 cm ³ / g. The specific volume is calculated by dividing the paper thickness (per sheet (ply)) by the basis weight (per sheet (ply)). As in the present invention, even if the number of sets of lotion tissue paper 1 is large, the carton height is made compact and the tactile feel is good. Since there are many, the upper space becomes large and it may be difficult to pinch the tissue when pulling it out. If the specific volume is high, the number of sets is large and the carton 20 cannot be made compact. The specific volume can be adjusted, for example, by adjusting the basis weight and the paper thickness.

[Strength in the direction perpendicular to the pull-out direction (DMDT)]
The lotion tissue paper 1 of the present invention has a tensile strength (measured at a pulling speed of 300 mm / min) in the longitudinal direction in the dry direction according to JIS P 8113, DMDT (Dry Machine Direction Tensile strength) of 2.2 N / 25 mm or more and 4.7 N or more. / 25 mm or less, preferably 2.6 N / 25 mm or more and 4.0 N / 25 mm or less, and more preferably 3.0 N / 25 mm or more and 3.5 N / 25 mm or less. As in the present invention, even if the number of sets of lotion tissue paper 1 is large, the height of the carton is made compact and the tactile feel is good, but when DMDT is low, the lotion tissue paper 1 becomes too soft and is cut off during processing. And the productivity is poor. When the lotion content is within the range of the present invention and the grammage is high, the pulp content per grammage is large, so that the DMDT is high, the feel as a lotion tissue paper may be poor, and the carton height may not be compact. is there.

  By setting the DMDT within the above range, it is possible to improve the tactile feel of the lotion tissue paper 1 and reduce the possibility of breaking the paper.

[Strength in pull-out direction (DCDT)]
The lotion tissue paper 1 of the present invention has a lateral tensile strength (measured at a pulling rate of 300 mm / min) DCDT (Dry Cross Direction Tensile strength) of 0.5 N / 25 mm or more and 2.3 N / 25 mm or less. It is preferably 0.7 N / 25 mm or more and 1.7 N / 25 mm or less, more preferably 0.9 N / 25 mm or more and 1.3 N / 25 mm or less. Like the present invention, when the carton height is made compact and the tactile feel is good even when the number of sets of lotion tissue paper 1 is large, when the carton 20 having a large number of sets and a compact carton height is used, When the value of DCDT is small, the lotion tissue paper 1 becomes too soft and is easily broken when the lotion tissue paper 1 is pulled out, and when the value is large, the feel of the lotion tissue paper 1 tends to be poor. By setting the DCDT in the above range, it is possible to make the lotion tissue paper 1 have a good tactile sensation and to prevent the lotion tissue paper 1 from being easily torn when the tissue is pulled out.

[DMDT / DCDT]
The lotion tissue paper 1 of the present invention preferably has a DMDT / DCDT of 1.9 or more and 4.4 or less, more preferably 2.3 or more and 3.9 or less, and 2.7 or more and 3.5 or less. Is more preferable. When DMDT / DCDT has a low value, the lotion tissue paper 1 tends to be inferior in touch, but when the value is high, the lotion tissue paper 1 becomes too soft, and a carton 20 having a large number of groups and a compact carton height is used. When the tissue is open, it is easy to tear when pulling out the tissue, and more paper breaks are likely to occur during processing. In this respect, by setting DMDT / DCDT within the above range, the feel and productivity of the lotion tissue paper 1 can be improved.

[Tensile breaking elongation during DMDT measurement]
The lotion tissue paper 1 of the present invention preferably has a tensile elongation at break (hereinafter, also referred to as “longitudinal elongation”) of 11.1% or more and 19.0% or less when measured by DMDT after coating with a chemical solution. It is more preferably 0.1% or more and 17.5% or less, and further preferably 15.1% or more and 16.5% or less. Here, as in the present invention, even when the number of sets of lotion tissue paper 1 is large, the carton height is made compact and the tactile feel is good, and when the lotion content is within a certain range, calender treatment is strongly performed. Then, if the paper thickness is reduced, the paper thickness is reduced, so that the carton 20 can be made compact. However, if the paper thickness is reduced with a calendar, the specific volume becomes low, so that it becomes difficult for the lotion drug solution to uniformly permeate into the tissue, and the portion where the lotion drug solution permeates a lot is easily broken. Therefore, it is important to adjust the crepe ratio so that the longitudinal elongation is within a certain range. Therefore, when the vertical elongation is low, the lotion tissue paper 1 is likely to be torn, and when it is high, the paper thickness is high and the carton 20 is difficult to be compact when the number of sets is large. In this respect, by realizing the vertical elongation in the above range, it is possible to reduce the size of the carton 20 while preventing the lotion tissue paper 1 from being easily broken (uneven penetration of the chemical liquid). it can.

  It is advantageous to increase the crepe ratio of the base paper in order to realize the vertical elongation in the above range. For example, the crepe ratio of the base paper is preferably 15% or more and 36% or less, more preferably 18% or more and 32% or less, and further preferably 21% or more and 28% or less.

[Chemical solution]
The lotion tissue paper 1 of the present invention contains a drug solution. The chemical liquid contains an aqueous component and an oily component, and preferably further contains water. In another aspect, the chemical liquid may contain only one of the aqueous component and the oil component. As in the present invention, even if the number of lotion tissue papers 1 is large, the height of the carton can be made compact and the touch feeling can be improved.

(Aqueous component)
Examples of the aqueous component include polyhydric alcohols (alcohols having a dihydric or higher hydroxyl group). More specifically, glycerin, diglycerin, ethylene glycol, propylene glycol, 1,3-butylene glycol, polyglycerin, polyethylene glycol, polypropylene glycol, sorbitol, xylitol, erythritol and the like can be mentioned. The polyhydric alcohols may be used alone or in combination of two or more. As in the present invention, even if the number of sets of lotion tissue paper 1 is large, the height of the carton can be made compact, and the tactile feeling can be improved. Can be

(Oil component)
Examples of the oily component include various silicone oils, liquid paraffin, mineral oils, waxes and the like. These components may be blended in one kind or in two or more kinds. These components contribute to the smoothness of the lotion tissue paper 1. In the present invention, this oily component is preferably silicone oil, and more preferably amino-modified silicone oil. As in the present invention, even if the number of sets of lotion tissue paper 1 is large, the height of the carton can be made compact, and the tactile feeling can be improved. Can be

(Chemical solution content (lotion content))
The chemical liquid content in the lotion tissue paper 1 of the present invention is preferably 10% by mass or more and 22% by mass or less, more preferably 12% by mass or more and 19% by mass or less, and 14% by mass or more and 17% by mass. The following is more preferable.

Further, the lotion tissue paper 1 of the present invention preferably has a chemical liquid content per ply of 1.7 g / m ² or more and 3.7 g / m ² or less, and 2.0 g / m ² or more and 3.2 g or less. / M ² or less, more preferably 2.3 g / m ² or more and 2.9 g / m ² or less.

  By setting the content of the chemical solution within the above range, the carton height can be made compact and the tactile sensation can be improved even if the number of sets of lotion tissue paper 1 is large as in the present invention. The tactile feeling of No. 1 can be made good, and even if a compact carton 20 having a large number of sets is used, it can be prevented from breaking when pulled out. Further, when the chemical liquid content is low, the feel of the lotion tissue paper 1 tends to be inferior, and when the chemical liquid content is high, it is possible to prevent the lotion tissue paper 1 from breaking during withdrawal even when a compact carton 20 having a large number of sets is used. .. By setting the content of the chemical solution within the above range, it is possible to reduce the possibility that the lotion tissue paper 1 is likely to be torn while improving the tactile sensation.

The content of the chemical liquid is determined by the following measuring method. 5 g of lotion tissue paper 1 is sampled, dried in a dryer (105 ° C.) for 120 minutes, then allowed to cool for 30 minutes in a desiccator, and the mass is measured. The measured mass at this time is m1. Next, Soxhlet extraction is carried out for 4 hours using the lotion tissue paper 1 whose mass has been measured and 150 ml of an extraction solvent (acetone: ethanol = 1: 1). The obtained extract is heated and concentrated on a hot water bath, dried in a dryer (105 ° C.) for 90 minutes, and then allowed to cool in a desiccator for 30 minutes, and the mass is measured. The measured mass at this time is m2. Then, using the obtained two measured masses m1 and m2, m2 / m1 × 100 (%) is defined as the chemical solution content (lotion content [%]). In addition, the basis weight per ply × the lotion content = the chemical solution content (the lotion content) (g / m ² ).

(Raw tissue paper)
The two-ply sheet that forms the lotion tissue paper 1 contains pulp as a main component, and preferably contains 50% by mass or more of pulp. Pulp that can be used to produce the lotion tissue paper 1 includes wood pulp, waste paper pulp, and non-wood pulp, but the lotion tissue paper 1 of the present invention may be composed of 100% wood pulp. In addition to wood pulp, waste paper pulp and non-wood pulp may be included. Examples of components other than pulp include fillers, synthetic fibers and natural fibers. In order to obtain the target quality, a wood pulp comprising 20% by mass or more and 50% by mass or less of bleached softwood kraft pulp (NBKP) and 50% by mass or more and 80% by mass or less of bleached hardwood kraft pulp (LBKP) is used as a raw material. More preferably, NBKP: 25% by mass or more and 45% by mass or less, and LBKP: 55% by mass or more and 75% by mass or less of wood pulp is more preferably used as a raw material, and NBKP: 30% by mass or more and 40% by mass or less. It is more preferable to use a wood pulp composed of the following and LBKP: 60% by mass or more and 70% by mass or less as a raw material.

  As a material of the above LBKP, a pulp produced from Eucalyptus genus, which is represented by Eucalyptus grandis and Eucalyptus globulus, is preferable. Further, up to about 50 parts by mass of waste paper pulp may be contained with respect to 100 parts by mass of wood pulp having the above pulp ratio. Since the quality of waste paper pulp varies greatly, and the quality of the product, especially the softness, is greatly affected when the blending ratio increases, the blending amount relative to the wood pulp is preferably 30 parts by mass or less, and 15 parts by mass or less. Is more preferable, 5 mass parts or less is more preferable, and it is most preferable not to mix waste paper pulp. The waste paper pulp is preferably derived from paper liquid beverage containers such as milk cartons.

In order to secure an appropriate strength to the lotion tissue paper 1, the strength can be adjusted by beating the pulp fibers after the raw materials are blended by an ordinary means. As the beating treatment for obtaining the target quality, the freeness (csf) of the seed box raw material is preferably 350 ml or more and 650 ml or less, preferably 400 ml or more and 600 ml or less, and more preferably 450 ml or more and 550 ml or less. A dry paper strengthening agent may be used, and a wet paper strength enhancing agent is preferably used.
By adjusting the above pulp composition and freeness, the carton height can be made compact and the tactile sensation can be improved even if the number of sets of lotion tissue paper 1 is large as in the present invention. When the lotion content is set, the feel of the lotion tissue paper 1 can be improved, and even if a large number of clips are inserted into the compact carton 20, the lotion tissue paper 1 is not easily torn when pulled out.

(Dimensions of lotion tissue paper (sheet width))
The sheet width (dimension in the long side direction of the carton 20) of the lotion tissue paper 1 of the present invention (see W5 in FIG. 1B) is preferably 170 mm or more and 255 mm or less, more preferably 190 mm or more and 245 mm or less, It is more preferably 210 mm or more and 235 mm or less. The size of the lotion tissue paper 1 may be adapted according to the size of the carton 20 (see W2 in FIG. 1A) and its properties (described later).
In addition, the sheet length of the lotion tissue paper 1 of the present invention (the dimension in the long side direction of the carton 20) is orthogonal to the sheet length, that is, the sheet length in the short side direction (the dimension before folding or the folded tissue). The dimension (in the unfolded state) is preferably 135 mm or more and 215 mm or less, more preferably 155 mm or more and 205 mm or less, and further preferably 175 mm or more and 195 mm or less. By adjusting the sheet width and the sheet length within the above ranges, the sheet width and length suitable for inserting a lot of clips of the lotion tissue paper 1 of the present invention into the carton 20 having the carton height of the present invention can be obtained. It becomes difficult to tear when it is pulled out.

[carton]
The lotion tissue paper 1 of the present invention is stored in a paper carton 20 which is a substantially rectangular parallelepiped storage box.

(Length of outlet)
The length of the outlet 21 of the carton 20 (the length of the slit 5 of the window film 4) (see W4 in FIG. 1A) is preferably 70 mm or more and 160 mm or less, more preferably 90 mm or more and 140 mm or less, More preferably, it is 105 mm or more and 125 mm or less.

  The length of the outlet 21 of the carton 20 (slit length of the window film 4) is 30% or more and 72% or less and 40% or more and 62% or less with respect to the dimension of the lotion tissue paper 1 in the long side direction. It is preferable that the content is 45% or more and 55% or less. By setting the size of the outlet 21 within the above range, the carton height can be made compact and the tactile sensation can be improved even if the number of sets of lotion tissue paper 1 is large as in the present invention. Can be pulled out more easily, tearing of the lotion tissue paper 1 at the time of pulling out is also reduced, and dropback (a phenomenon in which the lotion tissue paper 1 protruding from the outlet falls into the carton 20, It becomes difficult to pull out the tissue after the dropback).

  A length (see L1 in FIG. 1C) orthogonal to the center of the outlet 21 of the carton 20 in the long side direction (L0 = 126 mm as an example in FIG. 1C), and a position displaced from the center by 20% of L0 (in FIG. 1C). It is preferable that the average value of the total of three lengths L2, L3 (126 mm × 20% = shifted position of 25 mm) (see FIG. 1C) is 22 mm or more and 72 mm or less, and more preferably 30 mm or more and 62 mm or less. And more preferably 38 mm or more and 52 mm or less. With such a numerical range, even when the number of sets of lotion tissue paper 1 is large as in the present invention, the carton height is made compact and the tactile feel is good, and the lotion tissue paper 1 is more easily pulled out. The lotion tissue paper 1 is prevented from being torn when pulled out, and the dropback is also reduced.

  The thickness of the window film 4 is preferably 30 μm or more and 70 μm or less, more preferably 40 μm or more and 60 μm or less, and further preferably 45 μm or more and 55 μm or less. By setting the thickness of the window film 4 in the above range, the carton height can be made compact even when the number of lotion tissue papers 1 is large as in the present invention, and the touch feeling can be improved. 1, the draw-out property suitable for No. 1 is improved, and the dropback is reduced. In addition, the slit length and the thickness of the window film are the same as those of the lotion tissue paper 1 of the present invention and the carton 20 which is a substantially rectangular parallelepiped storage box that stores a plurality of sets of the lotion tissue papers 1 by stacking and folding them. It is obtained when used.

(Carton dimensions)
From the viewpoint of compactness, the dimension of the carton 20 in the long side direction (see W2 in FIG. 1A) is preferably 227 mm or more and 257 mm or less, more preferably 232 mm or more and 247 mm or less when the sheet width is 225 mm. More preferably, it is 235 mm or more and 242 mm or less. The dimensions of the carton 20 in the long side direction are as follows: the dimension of the carton 20 in the long side direction (see W2 in FIG. 1A) and the sheet width of the lotion tissue paper 1 (the dimension of the carton 20 in the long side direction) (see FIG. 1B). The dimensions of the carton 20 and the sheet can be determined so that the relationship with W5) is within the specified range.

  The relationship between the dimension of the carton 20 in the long side direction (see W2 in FIG. 1A) and the sheet width of the lotion tissue paper 1 (the dimension of the carton 20 in the long side direction) (see W5 in FIG. 1B) is W5 / W2 × 100. Is preferably 88% or more and 99% or less, more preferably 91% or more and 97% or less, and further preferably 93% or more and 96% or less. As in the present invention, when the lotion tissue paper 1 has a large carton height and a good tactile feel even when the number of sets is large, when a clip having a good tactile feel and a large number of sets is inserted into the compact carton 20. With the above range, the compactness of the carton 20 and the resistance to breakage when pulled out can be improved.

  From the viewpoint of compactness, the dimension of the carton 20 in the short side direction (see W3 in FIG. 1A) is preferably 95 mm or more and 130 mm or less, and more preferably 100 mm or more and 120 mm or less when the sheet length is 188 mm. More preferably, it is 105 mm or more and 115 mm or less. The dimension of the carton 20 in the short side direction is the dimension of the carton 20 in the short side direction (see W3 in FIG. 1A) and the sheet length of the lotion tissue paper 1 (the sheet length in the short side direction of the carton 20) (Fig. The dimensions of the carton 20 and the sheet can be determined so that the relationship with (not shown) falls within a specified range.

  The relationship between the dimension of the carton 20 in the short side direction (see W3 in FIG. 1A) and the sheet length of the lotion tissue paper 1 (sheet length in the short side direction of the carton 20) W7 (not shown) is W7 / (W3 X2) x100 is preferably 72% or more and 99% or less, more preferably 78% or more and 94% or less, and further preferably 81% or more and 90% or less. As in the present invention, when the carton height is made compact and the tactile feeling is good even when the number of sets of lotion tissue paper 1 is large, when inserting a clip having a good tactile feeling and a large number of sets into a compact carton, By setting it in the above range, the compactness of the carton 20 and the resistance to breakage when pulled out can be improved.

(Number of lotion tissues and carton height)
The number (groups) of lotion tissue papers 1 stored in the carton 20 is preferably 182 or more and 250 or less, more preferably 192 or more and 230 or less, and 202 or more and 210 or less. Is more preferable. If the number of sets is small, the replacement frequency is inferior, and if the number of sets is large, the lotion tissue paper 1 of the present invention in which the basis weight and the lotion content are within a certain range has a large clip (high), in which case the carton is It doesn't become compact.

  The height of the carton 20 (hereinafter, also referred to as “carton height”) (see H in FIG. 1A) is preferably 65 mm or more and 95 mm or less, and more preferably 69 mm or more and 85 mm or less from the viewpoint of compactness. And more preferably 73 mm or more and 80 mm or less. If the height of the carton 20 is low, the lotion tissue paper 1 of the present invention having a large number of sets will be difficult to pinch (difficult to pull out). Conversely, if the carton 20 is easy to pinch, the number of sets will be small and the replacement frequency will be poor.

At this time, the height of the carton 20 per set (carton height / number of sets) is preferably 0.32 mm or more and 0.46 mm or less, and more preferably 0.34 mm or more and 0.41 mm or less. , 0.36 mm or more and 0.40 mm or less is more preferable. In this way, by setting the number of lotion tissue papers 1 to be within a certain range and realizing the height of the carton 20 according to the number of lotion tissue papers 1 contained, it is easy to pull out one set of lotion tissue papers 1 and the carton. The compactness of 20 can be effectively improved. As in the present invention, when the number of sets of lotion tissue paper 1 is large, the height of the carton is made compact, and the tactile feel is good. When inserting a clip with a large number of sets into the compact carton 20, the range is within the above range. By doing so, it is possible to improve the ease of picking up the tissue paper product 7 (the ease of pulling out) and the compactness of the carton 20.

The height of the carton 20, the dimension in the long side direction, and the dimension in the short side direction are external dimensions. The basis weight of the carton 20 is preferably 300 g / ^{m 2} or more 510 g / ^{m 2} or less, 340 g / ^{m 2} or more 480 g / ^{m 2,} more preferably less, more preferably 380 g / ^{m 2} or more 450 g / ^{m 2} or less. The paper thickness (per sheet) of the carton 20 is preferably 370 μm or more and 630 μm or less, more preferably 420 μm or more and 590 μm or less, still more preferably 470 μm or more and 550 μm or less. Within the above range, when the clip of the lotion tissue paper 1 of the present invention, which has a large number of sets and is tactile, is inserted into the carton 20, the carton 20 is not crushed, and the drawability is improved, and the drawer is pulled out. It is also possible to make it hard to break at the time.

(Upper space)
In the carton 20, the upper space (see W6 in FIG. 1B) from one set (the first set) from above the lotion tissue paper 1 is preferably 2 mm or more and 20 mm or less, and more preferably 5 mm or more and 17 mm or less. It is more preferably 8 mm or more and 14 mm or less. Like the present invention, even if the number of lotion tissue papers 1 is large, the carton height is made compact and the tactile feeling is good. Conversely, if the upper space is large, the carton 20 is unlikely to be compact, and the lotion tissue paper 1 is difficult to pinch (difficult to pull out). By setting the upper space in the above range, it is possible to make both the ease of pulling out the lotion tissue paper 1 (the ease of pinching when pulling out the lotion tissue paper 1) and the compactness of the carton 20 compatible.

  The upper space is measured as follows. The lid related to the outlet 21 of the carton 20 is removed. Next, as shown in FIG. 2, a JIS 15 cm ruler 70 a (for example, straight scale silver manufactured by Shinwa Measurement Co., Ltd., material stainless steel, 10 g) is orthogonal to the slit 5 of the window film 4 in the center of the window film 4. To put. After that, a JIS 15 cm ruler 70b (for example, straight scale silver manufactured by Shinwa Measurement Co., Ltd., material stainless steel, 10 g) is inserted along the slit 5 of the window film 4 and the length of the sinking by its own weight is measured. The same measurement is performed at both ends of the slit 5, and the average value at three positions is taken as the upper space. The window film 4 may be made of a material (paper or the like) other than the film.

[Drawer resistance]
The carton 20 and the lotion tissue paper 1 preferably have 3 to 15 sets of pull-out resistance (resistance when pulled out from the carton 20) of 0.61 N or more and 1.30 N or less, and 0.71 N or more and 1.20 N or less. Is more preferable and 0.81N or more and 1.10N or less is still more preferable.

  Further, in the carton 20 and the lotion tissue paper 1, it is preferable that the lower 3 to 20 sets of pull-out resistance (the resistance when pulled out from the carton 20) is 0.15 N or more and 0.60 N or less, and 0.20 N or more and 0. It is more preferably 50 N or less, further preferably 0.25 N or more and 0.40 N or less. The measuring method of the drawing resistance is as follows.

First, 6 boxes of carton 20 containing lotion tissue 1 are prepared. Two pieces of paper (20 mm in the MD direction and 20 mm in the CD direction) 20a of the carton 20 are collected from one box. For one of the remaining five boxes, gently pull out and remove the first two sets of lotion tissue 1. Next, as shown in FIG. 3, the paper piece 20a of the carton 20 is placed in the widthwise center of the sheet from the third set so that the inner surface of the carton hits the lotion tissue paper 1 and the upper edge of the lotion tissue paper 1 is cartoned. It is sandwiched between 20 pieces of paper 20a. The paper piece 20a of the carton 20 is sandwiched by a clip 50 (for example, a double clip with a width of 19 mm manufactured by TANOSEE). The clip 50 has a height (length) of 11 mm and a width of 19 mm, and the paper piece 20a has a length of 12 mm and a width of 20 mm. The size of the clip 50 and the size of the paper piece 20a are not limited to these. In the sandwiched state, a tensilon tensile tester is used to pull up the lotion tissue paper 1 at a pulling speed of 1000 mm / min, and the maximum resistance value taken until it is pulled out from the carton 20 is measured. Similarly, the fourth set from the top to the third set from the bottom are measured in the same manner, and the average value of each of the 4 to 15 sets from the top and the 3 to 20 sets from the bottom is taken as a drawing resistance. The remaining 4 boxes are also measured in the same manner, and the average value of 5 boxes is taken as the resistance.

  Here, the pull-out resistance of 3 to 15 sets from the top corresponds to the resistance of the tissue paper product 7 at the beginning of use, and the pull-out resistance of the lower 3 to 20 sets of resistance corresponds to the resistance at the end of use of the tissue paper product 7. .. If the resistance at the beginning of use is high, it will be difficult to pull out, and if the resistance at the end of use is low, dropback will occur. In this regard, by optimizing the resistance at the beginning of use and the resistance at the end of use as described above, the carton height is made compact and the tactile sensation is improved even if the number of sets of lotion tissue paper 1 is large as in the present invention. Among the favorable conditions, the lotion tissue paper 1 having a good tactile sensation can be easily pulled out at the beginning of use, and the occurrence of dropback can be reduced to facilitate the withdrawal.

[Static friction coefficient]
The carton 20 and the lotion tissue paper 1 preferably have a coefficient of static friction between the inner surface of the carton 20 and the lotion tissue paper 1 of 0.45 or more and 0.75 or less, and 0.50 or more and 0.70 or less. Is more preferable and 0.55 or more and 0.65 or less is still more preferable. Here, the coefficient of static friction is the coefficient of static friction between the lotion tissue paper 1 (as it is in two plies) and the inner surface of the carton 20. The method of measuring the coefficient of static friction is as follows.

  The above static friction coefficient can be measured using “Automatic friction tester NSF-100” manufactured by Nomura Shoji Co., Ltd. according to ISO 15359. According to ISO 15359, the static friction coefficient is measured three times using the same sample, and the first and third values are adopted. In the present invention, the first value is used.

  Specifically, it is measured as follows.

(1) First, the laminate of lotion tissue paper 1 is gently removed from the carton 20.

(2) Next, at the center of the bottom of the carton, a sample measuring 18 cm in the long side direction and 6 cm in the short side direction is cut and collected so that the inner surface of the carton (the surface in contact with the laminated body of the lotion tissue paper 1) becomes the measurement surface. Then, it is attached to the upper surface of the table 201 (see FIG. 4) of the measuring device 200. Some cartons have perforations or the like on the bottom of the carton, but in that case, measurement is performed with the perforations and the like included.

(3) Next, in the tissue laminated body, the central part (for example, when the number of sets is 210, the 105th set from the top is used. Gently take one set (2 plies) of Lotion Tissue Paper 1) and return it to the original folded state (measure with 2 sets (4 plies) ). Then, a sample of 18 cm × 6 cm is cut out and attached to the lower surface of the thread 202. At this time, it should be in the same direction as when inserting the clip into the carton with an actual machine, and both ends in the direction of 18 cm should be cut off so as not to affect the measurement.

(4) When the table 201 is moved in the state where the sample of the carton and the sample of the lotion tissue paper 1 are brought into contact with each other after starting the measurement, the frictional force of the sample contact surface is limited with respect to the moving amount of the table 201. When the temperature reaches, the sample slips. The static friction coefficient is derived based on the value of the load cell 203 at this time. The static friction coefficient is measured three times using the same sample, but the first value is used. Then, the measurement is repeated 10 times and the average value is adopted.

  Here, as in the present invention, even when the number of sets of lotion tissue paper 1 is large, the height of the carton is made compact and the tactile sensation is improved, and the coefficient of static friction between the lotion tissue paper 1 and the inner surface of the carton 20 is improved. When the value is low (that is, the lotion content is small), the tactile sensation tends to be inferior, and when the value is high (that is, the lotion content is large), it becomes a snake state and is easily broken when pulled out. By setting the coefficient of static friction between the lotion tissue paper 1 and the inner surface of the carton 20 within the above range, the lotion tissue paper 1 has a good tactile sensation and also has a large number of groups and a good tactile sensation. When inserting 1 into the compact carton 20, the possibility of becoming a snake state can be reduced. It should be noted that the snake state means that when a clip (a laminated body of folded lotion tissue paper 1) is inserted into the carton 20, the laminated body becomes a snake state in the carton 20 (a state where the laminated body is vertically twisted in a side view). When the tissue is pulled out, it is easy to tear when the tissue is pulled out.

<Manufacturing method of lotion tissue paper>
The lotion tissue paper 1 of the present invention can be manufactured, for example, in the following order: (i) ply up and calendering, (ii) application and storage of a chemical solution, and (iii) interfolding.

(I) Ply-up and Calendar Processing FIG. 5 shows an example of the machine winder 100.

  Two primary rolls 11 (rolls after paper making) are set in the machine winder 100, and two plies are piled up so that the Yankee surface is on the outside. The original roll 12 is obtained. At this time, calendering may or may not be performed, but calendering is preferable.

  By the way, in the papermaking process, unlike the western paper, in the case of the lotion tissue paper 1 having a relatively low basis weight as described above, the retention is low. Therefore, when a sizing agent is added, the system is easily soiled and the productivity deteriorates. Cheap. When the FPR (first pass retention: primary yield rate) is low, the addition rate of the wet paper strength agent is increased when the primary web roll 11 for a relatively large coating amount as described above is made into paper. , The retention of the wet paper strength agent is low, and the inside of the system is easily soiled, and the productivity is likely to deteriorate. On the other hand, when the FPR is high, the formation is deteriorated, and when lotion is coated with a relatively large coating amount as described above, paper breakage occurs in a portion having a small amount of fibers, and the productivity is likely to deteriorate. The FPR is represented by FPR = {1- (concentration (mass%) of stock in white water dehydrated by wire) / (concentration (mass%) of stock in inlet)} × 100. .. That is, the FPR is the rate at which the raw materials in the paper stock accumulate on the wire. For example, the stock concentration of the inlet (the total concentration of the papermaking raw material (pulp) and other solid papermaking chemicals in the stock is 0.8% by mass, the concentration of the stock in the white water dehydrated by the wire is 0.3% by mass). In the case of, FPR = (0.8% -0.3%) / 0.8% × 100 = {1- (0.3% / 0.8%)} × 100 = 63%, that is, the raw material Of these, 63% will be paper, and 37% will be returned to raw materials instead of paper.

  In consideration of this point, in the papermaking process for forming the primary original roll 11, preferably, the sizing agent is not blended, and the addition amount (solid content) of the wet paper strength agent is higher than that of the pulp (solid content). ), 0.05% to 0.35% is preferable, 0.10% to 0.30% is more preferable, and 0.15 to 0.25% is further preferable. The FPR (first pass retention) is preferably 35% to 95%, more preferably 47% to 88%, even more preferably 60% to 82%.

(Ii) Application (Coating) and Storage of Chemical Solution The secondary original fabric roll 12 after calendering is coated with the chemical solution off-line by a chemical solution coating machine to obtain a third original fabric roll 13.

  By applying the chemical solution to the secondary original fabric roll 12 off-line, the chemical solution permeates into the tertiary original fabric roll 13 (see FIG. 6) to fix the secondary original fabric roll 13 by the storage period until processing as compared with online. It is also possible to apply a larger amount of the drug to the secondary original fabric roll 12 more uniformly than online.

  As a method of applying the chemical liquid to the secondary original fabric roll 12 off-line, a commonly used method, for example, inkjet printing, flexographic printing, gravure printing, roll coating, spray coating, or the like can be used, but it is flexographic printing. Preferably. In flexographic printing, a large amount of chemical liquid can be applied and the amount of application can be easily adjusted as compared with other printing methods.

  When the chemical solution is applied to the secondary original fabric roll 12, it is preferable to apply it to only one surface of the secondary original fabric roll 12 (either the inner winding side or the outer winding side). As a result, when wound up as the tertiary original fabric roll 13, the chemical solution applied to one surface of the tertiary original fabric roll 13 easily penetrates into the other surface in contact, and as a result, the secondary original fabric roll 12 It is possible to uniformly permeate and fix the chemical liquid into the third original fabric roll 13 rather than applying the chemical liquid to both the outer winding side and the inner winding side. In addition, it is possible to easily adjust the coating amount.

  By the way, in the storage period from the production of the secondary original fabric roll 12 (secondary original fabric) after the ply-up by the machine winder 100 to the coating, if the storage period is short, the effect of the wet paper strength agent is exhibited. It is difficult to cause a paper break when a lotion chemical solution having a relatively large coating amount is applied as described above. On the other hand, if the storage period is long, the difference in water content between the upper roll and the lower roll of the secondary original roll 12 becomes large, and the coating amount becomes uneven when a lotion chemical solution with a high coating amount is applied. The difference between

  In consideration of this point, the storage period from the production of the secondary original fabric roll 12 after the ply-up by the machine winder 100 to the coating is preferably 24 hours to 504 hours, more preferably 48 hours to 336 hours. 96 hours to 192 hours is more preferable.

By the way, the storage period of the third original fabric roll 13 (the storage time from the production of the third original fabric to the processing into a product) is relatively large as described above when the storage period is too short. When applying the lotion drug solution, the drug solution is not uniform, resulting in uneven quality. On the other hand, if the storage period is too long, when the lotion chemical liquid of a relatively large coating amount is applied as described above, the shape of the raw material collapses during storage, and stable production becomes impossible, resulting in poor productivity. In consideration of this point, the period for storing the third original fabric roll 13 is preferably 12 hours to 504 hours, more preferably 24 hours to 336 hours, and further preferably 96 hours to 192 hours.

  As a method of storing the third original roll 13, it is preferable to use the storage device described in Japanese Patent No. 5933384. FIG. 6 is a diagram showing an example of a storage device that stores the tertiary original fabric roll 13. For example, the wrapping film 111 is wound around the outer peripheral surface 13a of the third original fabric roll 13 coated with the chemical solution without any gap, and the tightening band 112 for tightening the outer peripheral surface 13a is wound on the wrapping film 111 and the third original fabric roll is wound. It is preferable to store the tertiary original roll 13 on the roll holder 113 on which the roll 13 is placed with the winding core horizontally installed with respect to the installation surface 117. According to this configuration, the outer peripheral surface 13a of the tertiary original fabric roll 13 is tightened not only by the wrapping film 111 but also by the tightening band 112. Morphological stability is dramatically increased. Therefore, as described above, when the lotion chemical liquid having a relatively large coating amount is applied, it is possible to effectively suppress the deformation of the third original fabric roll 13 after the application of the chemical liquid.

  The roll holder 113 has a receiving surface 114 that receives and holds the lower portion of the tertiary original fabric roll 13, and the receiving surface 114 is formed on a curved surface along the outer peripheral surface 13 a of the tertiary original fabric roll 13. Preferably. According to this structure, the lower portion of the tertiary original fabric roll 13 that is most easily deformed by its own weight is stably received and held by the curved receiving surface 114, so that the lower portion of the tertiary original fabric roll 13 is not deformed. Can be prevented. Thereby, the deformation of the third original fabric roll 13 can be suppressed more effectively, and the productivity becomes good.

  The roll holder 113 has a supporting portion 115 having a receiving surface 114 on the upper surface, and the supporting portion 115 is composed of a paper laminated plate in which a core material and face materials for preventing warpage of the core material are laminated. It is preferable that the face material forming the receiving surface 114 is provided on the upper surface of the above, while the face material is not provided on the lower surface of the support portion 115. According to this configuration, since the support portion 115 is made of a light paper laminated plate, it is possible to reduce the weight of the roll holder 113 and improve the handleability. Further, since there is no face material on the lower surface of the supporting portion 115 supporting the tertiary original fabric roll 13, when the load is applied from the tertiary original fabric roll 13, the supporting part 115 is favorably curved. On the other hand, if the lower surface of the support portion 115 has a surface material, the rigidity of the lower surface of the support portion 115 increases, so that the deformation of the lower surface of the support portion 115 is suppressed. In this respect, according to the above configuration, since the lower surface of the support portion 115 having no face material is favorably curved, the tertiary original roll 13 can be stored more stably. The roll holder 113 may have a leg portion 116 that floats and supports the support portion 115 from the installation surface 117.

(Iii) Interfolding process The lotion tissue paper 1 is obtained by processing the sheet of the third original roll 13 which is coated with a chemical solution and stored for a predetermined period.

  The processing of the third original fabric roll 13 can be performed by a known interfolder processing, and the sheets of the respective tertiary original fabric rolls 13 are folded and stacked, and alternately laminated to be processed, thereby pulling out in a pop-up type. It is preferred to obtain a possible lotion tissue paper. If the sheet can be pulled out in a pop-up manner, the sheet of each of the tertiary original rolls 13 may be folded at the center by V-shape folding or Z-shape folding. A preferred example of the folding method will be described later in detail with reference to FIGS. 7A to 7D.

  Examples of the interfolder include a rotary interfolder and a multi-stand interfolder. Here, particularly in the case of a multi-stand type interfolder, the take-out direction is the CD direction, which has weak strength, so that the tissue paper in a portion where a large amount of the chemical liquid has penetrated tends to be easily torn. In this respect, since the lotion tissue paper 1 of the present invention has the above-mentioned characteristics, it is possible to reduce the problem that the multi-stand interfolder easily breaks.

Next, FIG 7A~ Figure 7D is a schematic diagram showing a preferred example of the folding way, the folding way of the upper (5 pair in the first set from the top) of the clip 50, extend parallel to the longitudinal axis of the carton 20 It is a schematic sectional drawing which looked at. FIG. 7E is a diagram showing a folding method according to a reference example. In FIGS. 7A to 7D, for the sake of clarity, the set of lotion tissue papers 1 is shown by one line. In the following description, components that may be the same may be denoted by the same reference numerals, and description thereof may be omitted. Further, in the following description, the “folded portion” is a concept including a fold line (vertex in cross-sectional view) when folded and a portion connected to the fold line. In the "mountain fold" and the "valley fold", the fold method in which the outside is convex is the "mountain fold", and the fold method in which the inside is convex is the "valley fold". At this time, the “outer side” means when the lower surface SL of the main portion of the lower side of the lotion tissue paper 1 (the part that is folded and is below the next lotion tissue paper 1) is taken out from the carton 20. The direction is upward.

  In the reference example, as shown in FIG. 7E, all lotion tissue papers 1-1P to 1-5P are folded only once (folded along the long side direction) and one lotion adjacent to each other in the vertical direction. The tissue papers 1-1P to 1-5P are folded in such a manner that the end portions of the tissue papers 1-1P to 1-5P are arranged between the upper and lower portions forming the other folded portion.

On the other hand, in a preferred example of folding, as shown in FIGS. 7A to 7D, the first set of lotion tissue paper 1-1 is folded twice or more along the long side direction. As a result, the ease of pulling out the first set of lotion tissue paper 1 from the slit 5 of the carton 20 (when taking out along the long side direction) is greatly improved compared to the reference example.

In a preferred example of folding, as shown in FIGS. 7A to 7D, the first set of lotion tissue paper 1-1 is folded so that the folding portion is located below the outlet 21 of the carton 20. The lower side of the outlet 21 is a region that overlaps the outlet 21 in a top view. As a result, when the first set of lotion tissue paper 1 is pulled out from the outlet 21 of the carton 20, the folded portion (at least 4 plies) is pulled out first, so that the first set of lotion tissue paper 1 is pulled out. It is possible to effectively improve the difficulty of breaking the time.

Specifically, the example shown in FIG. 7A is an example in which the first set (topmost first set ) from the top is folded inward. In this case, other than the first set of lotion tissue paper 1-1 (the second to fifth set lotion tissue papers 1-2 to 1-5) are folded in the same manner as the above-described reference example. . The first set of lotion tissue paper 1-1 has folding parts 700 and 702 that are mountain-folded along the long side direction. The folding part 700 is formed by being folded at about half the position in the short side direction, and is located below the folding part 702. The folded portion 702 is formed by being folded at a position of about 1/4 in the short side direction. The folded portion 702 is folded such that the end portion 70 is located inside the folded portion 700 (in the vertical direction, below the upper portion forming the folded portion 700).

In other words, in the example shown in FIG. 7A, the first set of lotion tissue paper 1-1 is viewed from the long side direction of the carton 20 (longitudinal direction of the slit 5), and from the lower end to the left side (the left side of the drawing, the first 1 side example, hereinafter the same) extends from the right side (right side of the drawing, second side example, the same below), and is folded back to the left side and the upper side at a folding part 700 (an example of the first folding part), The remaining portion that has been folded back extends from the right side to the left side and is folded back to the right side and the lower side at a folding portion 702 (an example of a second folding portion). In addition, the second set of lotion tissue paper extends from the right side to the left side from the lower end when viewed in the long side direction of the carton 20, and is a normal central folded portion (an example of a fourth folded portion). It is folded back to the right and up. The second set of usually central 1st group of the lower end inside the folded portion of the specific position when the first set of end 70 (the upper end) and a second set of upper inside of the folded portion 700 is located.

Example shown in FIG. 7B is an example of folded first set from the top (most first set above) outward. In this case, other than the first set of lotion tissue paper 1-1A (the second to fifth set lotion tissue papers 1-2 to 1-5) are folded in the same manner as the above-described reference example. . The first set of lotion tissue paper 1-1A has a folded portion 700 that is mountain-folded along the long side direction and a valley portion 702A that is valley-folded along the long side direction. The folding part 700 is formed by being folded at about half the position in the short side direction, and is located below the folding part 702A. The folded portion 702A is formed by being folded at a position of about 1/4 in the short side direction. The folded portion 702A is folded such that the end portion 70 is located outside the folded portion 700 (upward in the vertical direction, above the upper portion that forms the folded portion 700).

In other words, in the example shown in FIG. 7B, the first set of lotion tissue paper 1-1A extends from the left side to the right side as viewed from the long side direction of the carton 20, and then the folded portion 700 (first Of the folded part) and the rest of the folded part extends from the right side to the left side, and is folded back to the right side and the upper side at the folded part 702A (an example of the second folded part). The second set of lotion tissue paper 1-2 extends from the right side to the left side from the lower end when viewed in the long side direction of the carton 20, and has a normal central folding part (fourth folding part). In one example), it is folded back to the right side and the upper side. The second set of usually central folding portion the lower end inside of the first set of located, and positions the upper end inside of the second set of folds 700, the first set of the lotion tissue paper 1-1A The end 70 (upper end) is located on the uppermost side of the clip.

The example shown in FIG. 7C is an example in which the first set (the first set at the top) and the second set from the top are folded together. In this case, other than the first set of the lotion tissue paper 1-1B and second set of lotion tissue paper 1-2B (lotion tissue paper 1-3～1-5 from third set shown to 5th group) is It is folded in the same manner as the above-mentioned reference example. The first set of lotion tissue paper 1-1B is folded along the long side and folded along the long side to form folded portions 700B and 704 (an example of first and second folded portions), and is folded along the long side. It has a folded portion 706 (an example of a third folded portion). The folded portion 700B is formed by being folded at a position of about 1/4 in the short side direction, and is located below the folded portions 704 and 706. The folded portion 704 is formed by being folded at a position of about ½ in the short side direction. The folded portion 706 is formed by being folded at a position of about 1/4 in the short side direction. The folded portion 704 is folded such that the end portion 70 is located inside the folded portion 700B (lower side than the upper portion forming the folded portion 700B in the vertical direction).

In the example shown in FIG. 7C, the second set of lotion tissue paper 1-2B is left-right inverted in the left-right direction of the figure with respect to the lotion tissue paper 1-1A described above. Specifically, the second set of lotion tissue paper 1-2B is folded along the long side direction (folded portion 800 (an example of the fourth folded portion)) and folded along the long side direction. 802 (an example of a fifth folded portion). The folding part 800 is formed by being folded at about half the position in the short side direction, and is located below the folding part 802. The folded portion 802 is formed by being folded at a position of about 1/4 in the short side direction. The folded portion 802 is folded so as to be located outside the folded portion 800 (upper side than an upper portion forming the folded portion 800 in the vertical direction).

In the example shown in FIG. 7C, the lotion tissue paper 1-1B of the first set and the lotion tissue paper 1-2B of the second set have the lower end 71 of the lotion tissue paper 1-1B. -2B inside the folded portion 800, the lotion tissue paper 1-2B folded portion 802 is located inside the lotion tissue paper 1-1B folded portion 700B, the upper end of the lotion tissue paper 1-2B. 80 is located inside the folded portion 704 of the lotion tissue paper 1-1B, and the folded portion 706 of the lotion tissue paper 1-1B is located inside the folded portion 802 of the lotion tissue paper 1-2B. Folded into

In other words, in the example shown in FIG. 7C, the first set of lotion tissue paper 1-1B extends from the left side to the right side from the end 71 (lower end) when viewed in the long side direction of the carton 20, and is folded. The portion 700B is folded back to the left side and the upper side, and the remaining portion that has been folded back extends from the right side to the left side. Extends from the left side to the right side and is folded back to the left side and the lower side at the folding portion 706. The second set of lotion tissue paper 1-2B is viewed from the long side direction of the carton 20, and from the lower end, It extends from the right side to the left side, is folded back to the right side and the upper side at the folding part 800, and the rest of the folded back portion extends from the left side to the right side and is folded back to the left side and the upper side at the folding part 802. The end 71 (lower end) of the first set is located inside the folding part 800, the folding part 802 is located inside of the folding part 700B, and the end part 80 (upper end) of the second set is inside the folding part 704. ) Is located, and the folding part 706 is located inside the folding part 802.

The example shown in FIG. 7D is another example in which the first set and the second set from the top are folded twice or more. In this case, other than the first set of the lotion tissue paper 1-1C and second set of lotion tissue paper l-2C (lotion tissue paper 1-3～1-5 from third set shown to 5th group) is It is folded in the same manner as the above-mentioned reference example. The first set of lotion tissue paper 1-1C has a folded portion 708 that is valley-folded along the long side direction, folded portions 710 and 712 that are mountain-folded along the long side direction, and along the long side direction. And a folded portion 714 folded in a valley. The folded portion 708 is formed by being folded at a position of less than ¼ in the short side direction, and is located below the folded portions 710 to 714. The distance from the apex (fold line) of the folded portion 708 to the apex (fold line) of the folded portion 710 is approximately 1/2 in the short side direction, and the folded portion 712 is formed so as to be located near the center of the carton 20. It The second set of lotion tissue paper 1-2C has folding parts 800C and 804 that are mountain-folded along the long side direction. The folded portion 800C is formed by being folded at a position of about ½ in the short side direction. The folded portion 804 is formed by being folded at a position of about 1/4 in the short side direction. The folded portion 804 is folded such that the end portion 80 is located inside the folded portion 710 (lower side than the upper portion forming the folded portion 710 in the vertical direction).

In other words, in the example shown in FIG. 7D, the first set of lotion tissue paper 1-1 extends from the lower end to the right side to the left side when viewed in the long side direction of the carton 20, and the folded portion 708 (first Of the folding part), and the remaining part of the folded back part extends from the left side to the right side, and is folded to the left side and the upper side of the folding part 710 (an example of the second folding part). The folded back remaining portion extends from the right side to the left side, is folded back rightward and downward at a folding portion 712 (an example of a third folding portion), and the folded back remaining portion is extends to the right side from the left side, are folded on the left side and the lower side at the bending portion 714 (an example of the last folded portion). In addition, the second set of lotion tissue paper 1-2C extends from the right side to the left side from the lower end when viewed in the long side direction of the carton 20, and is on the right side at the folded portion 800C (an example of the fourth folded portion). Further, the remaining part that is folded back to the upper side extends from the left side to the right side, and is folded back to the left side and the lower side at the folding part 804 (an example of the fifth folding part). The folding part 708 is located inside the folding part 800C, the folding part 804 is located inside the folding part 710, and the folding parts 712 and 714 are located above the folding part 804.

Here, as described above, even in the case of the lotion tissue paper 1 that is compact, has a large number of sets, and has a large coating amount, by realizing the folding method shown in FIGS. You can improve the difficulty of breaking. That is, in the case of the usual folding method as shown in FIG. 7E, when pulling out the first set from the top, one set (two plies) is pulled out. On the other hand, in the case of the folding method shown in FIG. 7A (substantially the same in the case of the folding methods shown in FIGS. 7B to 7D), the folding portion 702 needs to be pulled out, and therefore the folding portion 702 The upper side and the lower side of the folded portion 702 are pinched together and pulled out. Therefore, four plies, which is twice as large as that in FIG. 7E, are pulled out, and the strength is also improved. As a result, in the case of the folding method shown in FIG. 7A (substantially the same in the case of the folding methods shown in FIGS. 7B to 7D), as compared with the folding method shown in FIG. 7E, the first lotion tissue It is possible to effectively improve the resistance to tearing when the paper 1 is pulled out. In the example shown in FIG. 7C, the first set of lotion tissue paper 1-1B and the second set of lotion tissue paper 1-2B are to be pulled out at the same time, and 6 plies which is three times as large as that in FIG. 7E is used. It will be pulled out, and the strength will be further improved.
<Summary of usefulness of tissue paper products and lotion tissues>
By the way, since lotion tissues are generally high-grade products, the paper thickness is often increased, and in order to improve the appearance, they are generally placed in a high (large) carton. .

  However, in recent years, from the viewpoint of physical distribution, storage location, size of shelves in sales floors, etc., compact products having a large capacity have been preferred.

  In this respect, in the case of ordinary tissue paper, the carton can be made compact by reducing the paper thickness with a calendar.

  Also, in the case of ordinary tissue paper, the tissue paper and the carton have a low friction coefficient, so that the clip can be inserted into the carton relatively easily.

  On the other hand, in the case of lotion tissue paper, the coefficient of static friction between the lotion tissue paper and the inner surface of the carton is high, and when the clip is inserted into the carton, the clip is likely to be in a snake state and easily broken when pulled out. ..

  Even in the case of lotion tissue paper, if the basis weight is made low and the clip volume is made low, the snake state is less likely to occur, but the feel of lotion tissue paper is poor.

  In this respect, according to the tissue paper product 7 of the present invention, as described above, the basis weight can be set in the above range, and the static friction coefficient can be kept in the above range, so that the tactile feel is good. It is possible to reduce the possibility that the clip will be in a snake state when the clip 50 is inserted into the carton 20 while maintaining the basis weight such that

  Here, the lotion tissue paper folded by the rotary type interfolder is softly folded in the sheet (the density of the clip is low), so that when the clip is inserted into the carton, it is unlikely to be in a snake state. However, the lotion tissue paper folded by the rotary interfolder, on the other hand, becomes bulky because it is softly folded, and the carton cannot be made compact.

  On the other hand, in the case of lotion tissue paper folded with a multi-stand type interfolder, it can be folded firmly (the density of clips is high), so the carton height can be made compact, but when the clip is inserted into the carton, the clip is in a snake state. It is easy to become. This is a problem when folding lotion tissue paper.

  In this respect, according to the tissue paper product 7 of the present invention, as described above, even when the lotion tissue paper 1 is folded by the multi-stand type interfolder, the static friction coefficient can be adjusted within the above range, so that the carton 20 can be adjusted. It becomes difficult for the clip 50 to be in a snake state when it is inserted into. As a result, it is possible to reduce the possibility of the clip becoming a snake state when inserting the clip into the carton while making the carton height compact.

  Further, in the case of lotion tissue paper 1, if the paper thickness is reduced with a calendar, the specific volume becomes low, so it becomes difficult for the lotion to permeate the tissue evenly, and the chemical liquid becomes non-uniform (the portion with a large amount of chemical liquid is less. Part comes out). As a result, the strength of the portion where a large amount of the chemical liquid has penetrated is weakened, and the lotion tissue paper 1 is easily broken. In particular, in the case of a multi-stand type interfolder, since the take-out direction is the weak CD direction, the portion where a large amount of the chemical has penetrated is likely to break.

  On the other hand, according to the tissue paper product 7 of the present invention, as described above, the tensile breaking elongation (longitudinal elongation) at the time of DMDT measurement after coating the chemical liquid is adjusted to a predetermined range, so that the chemical liquid is uniform. It becomes easy to penetrate into. As a result, it is possible to solve a problem (easiness of breakage) caused by uneven penetration of the chemical liquid.

  That is, according to the tissue paper product 7 of the present invention, it is possible to reduce the problem that the paper is easily torn even if the paper thickness is relatively low within the range where the tactile sensation due to the reduction of the basis weight is not impaired. If the paper thickness can be made relatively low, the carton height can be made compact even if the number of sets is relatively large.

  Thus, according to the tissue paper product 7 of the present invention, despite the relatively large number of sets, the carton height is relatively low and compact, the sheet is relatively difficult to tear, and the tactile feel is relatively good. A lotion tissue 1 can be included.

  Also, with respect to the lotion tissue paper 1, even if the number of sets is relatively large, it is possible to contribute to downsizing of the carton height, the sheet is relatively difficult to tear, and the touch feeling is relatively good.

By the way, when the coating amount of the chemical liquid on the lotion tissue paper 1 is set relatively high as described above, if the paper thickness is too low on the calendar, it feels flickering. In addition, since the strength is low, when the lotion tissue paper 1 is compressed by the pull unit when processed by the multi-stand type interfolder, the paper is likely to tear. For example, when the first set of lotion tissue paper 1 is folded from the top, the first set of lotion tissue paper 1 and the second set of lotion tissue paper 1 are folded (for example, in FIG. 7B, the folded portion of the first set) . 702A and a portion of the second set that contacts the folded portion 702A) are torn along the MD direction.

  On the other hand, if the compression in the pull unit is weakened, tearing of the paper is suppressed, but the clip becomes bulky, and when the clip is inserted into the carton, it may not be inserted.

  Further, when the content of the chemical liquid is relatively high as described above, when the online coating is performed as in Japanese Patent No. 4676564 (coating is performed when the ply is made into two plies with a winder), the paper is easily broken and the productivity is increased. Is rather worse.

  On the other hand, according to the tissue paper product 7 of the present invention, as described above, even when the coating amount of the chemical liquid is relatively large, the clip insertion direction (DMDT), the drawing direction (DCDT), the strength ratio (DMDT). By setting / DCDT) within a certain range by beating or the like, it is possible to improve the quality (touch feeling, resistance to tearing).

  In addition, by using the third original roll 13 of offline coating, wrinkles such as online coating (folding with an interfolder while coating as in JP 2016-60982) are less likely to occur, and the paper thickness ( The volume of the clip) can be set within a certain range.

  Further, by using the third original roll 13 for offline coating, it is possible to reduce paper breakage during coating and improve productivity.

  Further, by appropriately setting the storage period from the production of the secondary original roll 12 (secondary original fabric) after the ply-up by the machine winder 100 to the coating as described above, the disconnection at the time of coating can be achieved. It is possible to reduce unevenness in the coating amount while reducing the amount of paper.

  Further, by appropriately setting the period for storing the third original fabric roll 13 (the storage time from the production of the third original fabric to the processing into a product) as described above, unevenness in the coating amount can be reduced. At the same time, the collapse of the shape of the original fabric during storage can be reduced, and the productivity becomes good.

  Therefore, according to the present invention, even if the number of sets is large, it is possible to efficiently manufacture (produce) so as to be compact and to have good quality (feeling and resistance to tearing).

  Hereinafter, the present invention will be described in detail with reference to examples. The present invention is not limited to the examples shown below.

<Examples 1 to 33, Comparative Examples 1 to 16>
As shown in Tables 1 to 4, a plurality of types of lotion tissue papers (hereinafter abbreviated as “tissues”) having different basis weights, paper thicknesses, specific volumes, etc. are manufactured, and a monitor (human The following evaluations by Each tissue was stacked in a predetermined number of sets with a multi-stand type interfolder so that the tissue was pulled out in the CD direction, and housed in various cartons.

  And the softness of the tissue, uneven texture, difficulty in tearing the tissue (including when pulling out), ease of pulling out when pulling out the tissue (upward pulling resistance, that is, starting to use), no dropback (lower pulling resistance) That is, after use, ease of pinching when pulling out tissue (upper space), replacement frequency (number of sets), compactness of carton (carton height), each productivity (dirt in the system during paper making process, paper making process) The effect of the wet paper strength agent to be blended, paper breakage at the time of coating due to deterioration of texture, good original fabric shape after coating, and paper breakage due to reduction in strength) was evaluated in five levels.

  The basis weight of the sheet was measured as follows.

  Sheet basis weight: Measured according to JIS P 8124 and converted per sheet.

Paper thickness: Measured using a thickness gauge (dial thickness gauge "PEACOCK" manufactured by Ozaki Seisakusho Co., Ltd.). The measurement conditions were a measurement load of 250 gf, a probe diameter of 30 mm, a sample was placed between the probe and the measuring table, and the gauge was read when the probe was lowered at a speed of 1 mm or less per second. In addition, one measurement was performed by stacking five pairs of two-ply lotion tissue papers, and the measurement was repeated 10 times to average the measurement results. Moreover, when the paper thickness of the carton was measured, it was performed with one sheet.

  The basis weight, paper thickness, strength, pull-out resistance, etc. were measured after maintaining the equilibrium state under the temperature and humidity conditions (23 ± 1 ° C., 50 ± 2% RH) specified in JIS P 8111.

  The following evaluations were carried out by 20 monitors.

  Tissue sensation: Tissue sensation (softness) when the tissue pulled out from the carton was used by unfolding (blowing nose, wiping dirt, etc.) and voluminous sensation when held in hands were evaluated. In addition, unevenness in touch was evaluated.

  Difficulty in tearing when the tissue is pulled out: The difficulty in breaking when the tissue was pulled out from the carton was evaluated.

  No dropback: At the end of use, the tissue was evaluated for dropback when used.

  Ease of pulling out tissue when pulling out tissue: The ease of pinching when pulling out the first set of tissue from the carton was evaluated.

  Replacement frequency (set number): The replacement frequency of the tissue paper product was evaluated.

  Carton compactness: The carton (tissue paper product) compactness was evaluated.

  Each productivity was evaluated by actual production (trial production).

  The evaluation was "3", which was equivalent to the conventional product, "4" when it was slightly better, and "5" when it was better. Similarly, "2" means inferior to "3", and "1" means remarkably inferior. If the evaluation is 3 to 5, there is no problem.

  From Table 1 to Table 4, according to the present invention, the texture of the tissue, uneven texture, resistance to tearing when pulling out the tissue, ease of pulling out when pulling out the tissue, no dropback, ease of pinching when pulling out the tissue. It can be seen that a tissue having good exchange frequency, compactness of carton, and productivity was obtained.

1 Lotion Tissue paper 4 Window film 5 Slit 7 Tissue paper product 12 Secondary original roll 13 Third tertiary roll 20 Carton 21 Drawer 700B Folding part 704 Folding part 706 Folding part 800 Folding part 802 Folding part

Claims (11)

A lotion tissue paper coated with a chemical solution is a method of manufacturing a tissue paper product, which is manufactured by stacking a plurality of sets of two-ply sheets as one set and packing them in a carton that is a substantially rectangular parallelepiped storage box,
The lotion tissue paper is
The basis weight per sheet ply is 12 g / m ² or more and 20 g / m ² or less,
The number of groups is 182 or more and 250 or less,
DCDT is 0.5 N / 25 mm or more and 2.3 N / 25 mm or less,
DMDT is 2.2 N / 25 mm or more and 4.7 N / 25 mm or less,
DMDT / DCDT is 1.9 or more and 4.4 or less,
Accommodated in the carton having a height of 65 mm or more and 95 mm or less,
3 to 15 sets of pull-out resistance from 0.61N to 1.30N,
The pull-out resistance of 3 to 20 pairs from the bottom is 0.15N or more and 0.60N or less,
The content of the chemical liquid per sheet ply is 1.7 g / m ² or more and 3.7 g / m ² or less,
The said manufacturing method manufactures the primary original fabric with a papermaking equipment, manufactures the secondary original fabric roll by plying up with the winder with respect to the produced primary original fabric, and produces the said secondary original fabric. The roll is coated with a chemical solution to produce a third original fabric, and the produced third original fabric is processed by a multi-stand type interfolder so that the lotion tissue paper can be pulled out in the CD direction. 1. A method of manufacturing a tissue paper product, which comprises box-packing a laminate in which a plurality of the lotion tissue papers are folded while being laminated.   The method for producing a tissue paper product according to claim 1, wherein the storage period from the production of the second original fabric to the coating is 24 hours or more and 504 hours or less.   The method for producing a tissue paper product according to claim 1, wherein the storage time from the production of the third original fabric to the processing into a product is 12 hours or more and 504 hours or less. The first sheet of the lotion tissue paper is folded twice or more along the long side direction to form the laminated body,
The method for manufacturing a tissue paper product according to any one of claims 1 to 3, wherein the first lotion tissue paper is folded such that a folding portion is located below an outlet of the carton. The first piece of the lotion tissue paper extends from the first side to the second side from the lower end when viewed in the long side direction of the carton, and is folded back to the first side and the upper side at the first folding portion. , The remaining portion that has been folded back extends from the second side to the first side, and is folded back to the second side and the lower side at the second folding portion,
A second sheet of the lotion tissue paper extends from the second end to the first side when viewed in the long side direction of the carton, and is folded back to the second side and the upper side at the fourth folding portion. And
The lower end of the first sheet of the lotion tissue paper is located inside the fourth folding section, and the upper end of the first sheet of the lotion tissue paper and the second sheet of the lotion tissue paper are located inside the first folding section. The method for manufacturing a tissue paper product according to claim 4, wherein the upper end of the tissue paper is located. The first piece of the lotion tissue paper extends from the first side to the second side from the lower end when viewed in the long side direction of the carton, and is folded back to the first side and the upper side at the first folding portion. , The remaining portion that has been folded back extends from the second side to the first side, and is folded back to the second side and the upper side at the second folding portion,
A second sheet of the lotion tissue paper extends from the second end to the first side when viewed in the long side direction of the carton, and is folded back to the second side and the upper side at the fourth folding portion. And
The lower end of the first lotion tissue paper is located inside the fourth fold, and the upper end of the second lotion tissue paper is located inside the first fold. The method for manufacturing a tissue paper product according to claim 4, wherein the upper end of the first sheet is located on the uppermost side of the laminate. The first piece of the lotion tissue paper extends from the first side to the second side from the lower end when viewed in the long side direction of the carton, and is folded back to the first side and the upper side at the first folding portion. , The folded back remaining portion extends from the second side to the first side, and is folded back toward the second side and the lower side at the second folding portion, and the folded back remaining portion is , Extends from the first side to the second side, and is folded back to the first side and the lower side at the third folding portion,
The second piece of the lotion tissue paper extends from the second side to the first side when viewed in the long side direction of the carton, and is folded back to the second side and the upper side at the fourth folding portion. , The remaining portion that has been folded back extends from the first side to the second side, and is folded back to the first side and the upper side at the fifth folding portion,
The lower end of the first sheet of the lotion tissue paper is located inside the fourth fold, the fifth fold is located inside the first fold, and the inside of the second fold is inside the fourth fold. The method for manufacturing a tissue paper product according to claim 4, wherein the second upper end of the lotion tissue paper is located, and the third folded portion is located inside the fifth folded portion. The first sheet of the lotion tissue paper extends from the second side to the first side when viewed in the long side direction of the carton, and is folded back to the second side and the upper side at the first folding portion. , The folded back remaining portion extends from the first side to the second side, and is folded back toward the first side and the upper side at the second folding portion, and the folded back remaining portion is moved to the second side. From the side to the first side, and is folded back to the second side and the lower side at the third folding portion, and the further remaining part of the folded back extends from the second side to the first side, and finally It is folded back to the first side and the lower side at the folding part of
A second sheet of the lotion tissue paper extends from the second end to the first side when viewed in the long side direction of the carton, and is folded back to the second side and the upper side at the fourth folding portion. , The remaining portion that has been folded back extends from the first side to the second side, and is folded back to the first side and the lower side at the fifth folding portion,
The first fold is located inside the fourth fold, the fifth fold is located inside the second fold, and the fifth fold is above the fifth fold. The method for producing a tissue paper product according to claim 4, wherein the third fold and the last fold are located.   In the papermaking process, no sizing agent is added, the amount of addition of the wet paper strength agent is 0.05% or more and 0.35% or less based on the solid content, and the FPR (fast path retention) is The method for producing a tissue paper product according to any one of claims 1 to 8, which is 35% or more and 93% or less.   The said lotion tissue paper is a manufacturing method of the tissue paper product of any one of Claims 1-9 whose content of the said chemical | medical solution is 10 mass% or more and 22 mass% or less.   The method for producing a tissue paper product according to any one of claims 1 to 10, wherein an upper space from one set of the lotion tissue paper is 2 mm or more and 20 mm or less in the carton.

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