WO2018159823A1

WO2018159823A1 - Sanitary tissue paper

Info

Publication number: WO2018159823A1
Application number: PCT/JP2018/008068
Authority: WO
Inventors: 宏彦加藤; 真一藁科
Original assignee: 大王製紙株式会社
Priority date: 2017-03-02
Filing date: 2018-03-02
Publication date: 2018-09-07
Also published as: TWI764992B; TW201833410A; JP6501988B2; JPWO2018159823A1

Abstract

Sanitary tissue paper having: a first sheet having a plurality of embossed convex sections and a plurality of embossed concave sections corresponding to the embossed convex sections, formed on the front and rear thereof; and a second sheet having a plurality of embossed convex sections and a plurality of embossed concave sections corresponding to the embossed convex sections, formed on the front and rear thereof. The first sheet and the second sheet are integrated in the sanitary tissue paper, having the formation surfaces of the embossed convex sections thereof facing in a nested manner. The first sheet has a first embossed section having a plurality of embossed convex sections and a plurality of non-embossed convex sections formed therein; and a first non-embossed section not having a plurality of embossed convex sections and a plurality of non-embossed convex sections formed therein. The second sheet has: a second embossed section having a plurality of embossed convex sections and a plurality of non-embossed convex sections formed therein; and a second non-embossed section not having a plurality of embossed convex sections and a plurality of non-embossed convex sections formed therein. The first non-embossed section faces the second embossed section. The second non-embossed section faces the first embossed section.

Description

Sanitary tissue paper

The present invention relates to sanitary thin paper.

Some sanitary thin paper such as kitchen paper has a laminated structure in which sheets of crepe paper or the like subjected to embossing are laminated. In conventional sanitary thin paper, each sheet is embossed to provide oil and moisture absorption performance, and a convex portion is formed on one surface, and a concave portion corresponding to the convex portion is formed on the other surface. . Then, by laminating these sheets, a space (embossed space) is formed between the laminated sheets, and the oil or the like absorbed in the embossed space is retained.

In addition, in this type of sanitary thin paper, in order to improve design and absorption performance (moisture and oil absorption, retention, absorption speed, etc.), each sheet has no embossed irregularities (non-embossed) facing each other. A non-embossed space is formed, and an oil component or the like is allowed to pass through the non-embossed space so that the absorption performance of the oil component or the like is enhanced.

For example, FIG. 2 of Japanese Patent Publication No. 6-28951 (Patent Document 1) shows a tip-to-tip format in which the tops of the convex portions of two embossed crepe papers are bonded to each other. Sanitary paper such as kitchen towels having the laminated structure is disclosed (see FIGS. 10 to 13).

In addition, in U.S. Pat. No. 8,409,404 (Patent Document 2), the top of the convex portion of one crepe paper is not the convex portion of the other crepe paper (as viewed from one facing crepe paper, a plurality of Disclosed is a kitchen paper having a nested type laminated structure in which convex portions are alternately arranged and bonded so as to be located at a portion surrounded by embossed convex portions (a portion where convex portions are not formed) (FIGS. 14 to 14). FIG. 17).

Furthermore, Japanese Unexamined Patent Application Publication No. 2008-208501 (Patent Document 3) discloses a kitchen paper provided with a line-shaped non-embossed space intersecting the inside (see FIGS. 10 to 17).

Japanese Patent Publication No. 6-28951 U.S. Pat. No. 8,409,404 JP 2008-208501 A

However, in the structure of Patent Document 1 (tip-to-tip type laminated structure), the strength in the lamination direction (thickness direction) tends to be low, and when using sanitary thin paper (for example, fried food on kitchen paper laid on a plate) There is a problem that the oil absorbed by the load oozes out (back through) on the back side of the sanitary thin paper (for example, a dish on which kitchen paper is placed) (see FIGS. 10 to 13).

In addition, the structure of Patent Document 2 (nested laminated structure) can reduce the contact area with the object to be used, but the embossed space in the sanitary thin paper is small compared to the tip-to-tip laminated structure. Therefore, even when the embossed space is slightly crushed when a load is applied during use, the oil content or the like is difficult to be absorbed, and the absorbed oil content oozes out (see FIGS. 14 to 17).

Furthermore, in the sanitary thin paper having a non-embossed space disclosed in Patent Document 3, since there are no columns due to the embossed convex portions in the non-embossed space, the strength against the load in the thickness direction is reduced. For this reason, in conventional sanitary thin paper with such a non-embossed space, regardless of the tip-to-tip type and the nested structure of the laminated structure, if a load is applied in the thickness direction, the non-embossed space is crushed and the oil absorption performance is reduced. There is a problem (see FIGS. 10 to 17).

In addition, although the strength in the thickness direction can be increased by reducing such non-embossed space, the diffusibility of oil or the like is reduced because the space volume of the non-embossed space is reduced. Moreover, since the area of the non-embossed part in each sheet is reduced, the design is lowered. Further, when there is an intersection where the non-embossed space intersects in the space sandwiched between the sheets, oil or the like stays in the intersection and the oil or the like is prevented from diffusing, so that the oil absorption performance further decreases.

An object of the present invention is to provide a sanitary thin paper excellent in absorption performance under load while maintaining diffusibility and design.

In order to solve the above-described problem, according to one embodiment, a first sheet in which a plurality of embossed convex portions and embossed concave portions corresponding to the embossed convex portions are formed on the front and back, an embossed convex portion, and the embossed convex portion A second sheet having a plurality of corresponding embossed recesses formed on the front and back sides, and the first sheet and the second sheet are integrated by making the formation surface of the embossed protrusions face each other in a nested manner The first sheet includes a first embossed portion in which a plurality of embossed convex portions and a plurality of non-embossed convex portions are formed, a plurality of embossed convex portions, and a plurality of non-embossed convex portions. And the second sheet includes a second embossed portion formed with a plurality of embossed convex portions and a plurality of non-embossed convex portions, and a plurality of embossed convex portions. And a plurality of non-embossed protrusions A second non-embossed portion that is not formed, the first non-embossed portion faces the second embossed portion, and the second non-embossed portion faces the first embossed portion. Sanitary tissue paper is provided.

According to one embodiment of the present invention, it is possible to provide a sanitary thin paper that is excellent in absorption performance under load while maintaining diffusibility and design.

It is a figure which shows the kitchen paper which concerns on embodiment (1st Embodiment) of this invention. (A) is a figure which shows the 1st sheet | seat which comprises the kitchen paper of FIG. 1, (B) is a figure which shows the 2nd sheet | seat laminated | stacked on the 1st sheet | seat of (A). 2A is an enlarged view of a portion surrounded by a line 3A in FIG. 2A, FIG. 2B is an enlarged view of a portion surrounded by a line 3B in FIG. 2B, and FIG. It is an enlarged view of the part enclosed by the 3C line | wire of FIG. 4A is a sectional view taken along line 4A-4A in FIG. 3A, FIG. 3B is a sectional view taken along line 4B-4B in FIG. 3B, and FIG. 3C is a sectional view taken along line 4C--4 in FIG. It is a 4C line sectional view. (A) is an enlarged view of a portion surrounded by line 5A in FIG. 2 (A), (B) is an enlarged view of a portion surrounded by line 5B in FIG. 2 (B), and (C) is It is an enlarged view of the part enclosed by the 5C line | wire of FIG. 5A is a cross-sectional view taken along line 6A-6A in FIG. 5A, FIG. 5B is a cross-sectional view taken along line 6B-6B in FIG. 5B, and FIG. 5C is a cross-sectional view taken along line 6C in FIG. FIG. It is a figure which shows the kitchen paper which concerns on embodiment (2nd Embodiment) of this invention. (A) is a figure which shows the 1st sheet | seat which comprises the kitchen paper of FIG. 7, (B) is a figure which shows the 2nd sheet | seat laminated | stacked on the 1st sheet | seat of (A). It is a figure explaining the measuring method of an oil absorption test. It is a figure which shows the kitchen paper which concerns on the comparative example 1. FIG. (A) is a figure which shows the 1st sheet | seat which comprises the kitchen paper of FIG. 10, (B) is a figure which shows the 2nd sheet | seat laminated | stacked on the 1st sheet | seat of (A). (A) is an enlarged view of a portion surrounded by a line 12A in FIG. 10, and (B) is an enlarged view of a portion surrounded by a line 12B in FIG. (A) is a sectional view taken along line 13A-13A in FIG. 12 (A), and (B) is a sectional view taken along line 13B-13B in FIG. It is a figure which shows the kitchen paper which concerns on the comparative example 2. (A) is a figure which shows the 1st sheet | seat which comprises the kitchen paper of FIG. 14, (B) is a figure which shows the 2nd sheet | seat laminated | stacked on the 1st sheet | seat of (A). (A) is an enlarged view of a portion surrounded by a line 16A in FIG. 14, and (B) is an enlarged view of a portion surrounded by a line 16B in FIG. (A) is a sectional view taken along line 17A-17A in FIG. 16 (A), and (B) is a sectional view taken along line 17B-17B in FIG.

A first aspect of the present invention is a first sheet in which a plurality of embossed convex portions and embossed concave portions corresponding to the embossed convex portions are formed on the front and back, an embossed convex portion and an embossed concave portion corresponding to the embossed convex portion, Is a sanitary thin paper in which a plurality of second sheets are formed on the front and back sides, and the first sheet and the second sheet are integrated with the embossed protrusions facing each other in a nested manner. In the first sheet, the first embossed portion in which a plurality of embossed convex portions and the plurality of non-embossed convex portions are formed, and the plurality of embossed convex portions and the plurality of non-embossed convex portions are not formed. The second sheet includes a second embossed portion formed with a plurality of embossed convex portions and a plurality of non-embossed convex portions, a plurality of embossed convex portions, and a plurality of non-embossed portions. A second non-embossed protrusion is not formed. And a boss portion, said first non-embossed portion is facing the second embossed portion, said second non-embossed portion is facing the first embossed portion, a sanitary thin paper.

In this specification, sanitary thin paper is not particularly limited, and includes kitchen paper, tissue paper, dry type, wet type sanitary thin paper impregnated with water and chemicals. In addition, sanitary thin paper can be used for both home use and business use.

The well-known crepe paper used for sanitary thin paper can be used for the first sheet. An embossing convex part is a convex part formed in a 1st sheet | seat by embossing. An embossing recessed part is a recessed part formed in the 1st sheet | seat integrally with an embossing convex part. A non-embossing convex part shows the part in which the convex part enclosed by the several embossing convex part is not formed in a 1st sheet | seat.

The second sheet may be a known crepe paper used for sanitary thin paper, and may be made of the same material as the first sheet. An embossing convex part is a convex part formed in a 2nd sheet | seat by embossing. The embossed recess is a recess formed integrally with the embossed convex part on the second sheet. A non-embossed convex part shows the part in which the convex part enclosed by the several embossed convex part is not formed in a 2nd sheet | seat.

In the present specification, when the first sheet and the second sheet face each other in a nested manner, the embossed convex part of the second sheet is the embossed convex part of the second sheet. The non-embossed portion or the non-embossed convex portion surrounded by the embossed convex portion as viewed from the first sheet, and the top portion of the embossed convex portion of the second sheet is the first It is to make it face the part which is not an embossing convex part of a sheet | seat (the part which is not convex or is surrounded by the embossing convex part or a non-embossing convex part seeing from a 2nd sheet | seat). Moreover, you may adhere the top part of an embossing convex part to the non-embossing convex part which faces.

The first sheet further has a first embossed portion and a first non-embossed portion. A plurality of embossed convex portions and a plurality of non-embossed convex portions are formed on the first embossed portion. On the other hand, neither the plurality of embossed convex portions nor the plurality of non-embossed convex portions are formed on the first non-embossed portion.

Further, the second sheet further has a second embossed portion and a second non-embossed portion. In the second embossed portion, a plurality of embossed convex portions and a plurality of non-embossed convex portions are formed. On the other hand, neither the plurality of embossed convex portions nor the plurality of non-embossed convex portions are formed on the second non-embossed portion.

In the first aspect, the first embossed portion on the first sheet so that the first non-embossed portion faces the second embossed portion and the second non-embossed portion faces the first embossed portion. And a first non-embossed portion, and a second embossed portion and a second non-embossed portion are formed on the second sheet.

In such a configuration, since the non-embossed portions do not face each other between the first sheet and the second sheet, a non-embossed space (non-embossed space between the first sheet and the second sheet). An embossed portion is formed by facing each other, and a space that is easily crushed by a load in the thickness direction is not formed. Therefore, in the first aspect, the strength in the thickness direction with respect to the load can be increased, and the absorption performance at the time of the load can be improved (for example, the breakthrough of oil or the like can be reduced).

Further, in a structure in which the non-embossed portion arranged on the first sheet and the non-embossed portion arranged on the second sheet do not face each other, the non-embossed portion is arranged dispersed in the sanitary thin paper. Oil and the like are easily diffused through the non-embossed portion. Therefore, according to the first aspect, even if there is no non-embossed space, the diffusibility of absorbed oil or the like is maintained, and a decrease in absorption speed can be suppressed.

Further, there is no non-embossed space between the first sheet and the second sheet, and naturally there is no intersection (a part where oil or the like tends to stay) where the non-embossed space intersects. Therefore, in the first aspect, it is possible to improve the diffusibility of the oil and the like and reduce the breakthrough of the oil and the like.

In addition, in sanitary thin paper, the non-embossed space becomes a part that exhibits design, so that if there is no non-embossed space, the design tends to decrease. However, in the first aspect, since the non-embossed portions are dispersed and arranged in the sanitary thin paper, the design can be maintained even if there is no non-embossed space.

In the first aspect, since the first sheet and the second sheet are stacked in a nested manner, the contact area with the sanitary thin paper can be reduced. Even under load, the space inside the sanitary thin paper is hard to collapse. In addition, the absorption speed can be maintained and the absorption performance under load can be maintained without providing a non-embossed space between the first sheet and the second sheet. Therefore, according to the 1st aspect, basic weight and paper thickness can be made small and the thickness of sanitary thin paper can be made thin.

In the second aspect of the present invention, the first sheet and the second sheet each have two or more sheet areas, and the first sheet includes the first area. A region having a non-embossed portion and a region not having the first non-embossed portion are formed, and the region having the second non-embossed portion is formed in the sheet region of the second sheet. 2 is a sanitary thin paper that is formed so as not to overlap the region having the first non-embossed portion and the region having the second non-embossed portion. is there.

In this specification, having two or more sheet regions means that when the sanitary thin paper is divided into arbitrary dimensions in a state where the first sheet and the second sheet are laminated, the divided range is two. That means there are more. Each sheet region can be distinguished into two or more regions.

In the second mode, the regions having the first non-embossed portion and the regions having the second non-embossed portion are arranged so as not to overlap in each of the regions thus divided. Therefore, even when non-embossed portions exist in a plurality of regions, the non-embossed portions do not face each other between the first sheet and the second sheet (a non-embossed space is not formed). Thereby, in the 2nd aspect, since the area of the embossed part formed in each sheet | seat increases and the intensity | strength of the thickness direction with respect to a load can be maintained, the absorption performance at the time of a load can be improved. Moreover, even if there is no non-embossed space, it is possible to suppress a decrease in dispersibility of oil and the like, and to maintain design.

According to a third aspect of the present invention, the pattern of the first non-embossed portion facing the second embossed portion and the pattern of the second non-embossed portion facing the first embossed portion are further provided. , 90 ° × n rotational symmetry (n is an odd number), sanitary thin paper.

In this specification, the pattern of a non-embossed part is the outline shape of the non-embossed part formed in the other sheet | seat seen from the one sheet | seat in which the embossed part which faced was formed. The 90 ° × n rotational symmetry means that when the pattern is rotated 90 ° × n around the virtual axis, the rotated pattern overlaps with the pre-rotation pattern.

In addition, the shape of the pattern is not particularly limited, and any shape such as a circle, a triangle, a quadrangle, a polygon, a cross, and a heart can be adopted. Further, the number of figures constituting the pattern is not limited to one, and it may be constituted by a plurality of figures, and the plurality of figures may have different shapes.

By forming a non-embossed portion having a pattern having such a rotationally symmetric positional relationship on the first sheet and the second sheet, the non-embossed portion is provided between the first sheet and the second sheet. It can be arranged regularly (the non-embossed part can exhibit a geometric pattern throughout the sanitary thin paper). Therefore, according to the 3rd aspect, even if there is no non-embossing space, the fall of dispersibility, such as an oil component, can further be suppressed and design property can be maintained.

In the fourth aspect of the present invention, a pattern of the first non-embossed portion facing the second embossed portion and a pattern of the second non-embossed portion facing the first embossed portion are further provided. It is a sanitary thin paper that is line symmetric. In this specification, the line symmetry means that when a pattern is inverted about an imaginary straight line, the pattern after inversion overlaps the pattern before inversion.

The non-embossed portion is also formed between the first sheet and the second sheet by forming the non-embossed portion having a pattern having such a line symmetrical positional relationship on the first sheet and the second sheet, respectively. Can be arranged regularly. Therefore, according to the 4th aspect, the fall of dispersibility, such as an oil component, can further be suppressed, and design property can be maintained.

The fifth aspect of the present invention is sanitary thin paper in which at least one of the first non-embossed portion and the second non-embossed portion does not have an intersection. In the present specification, having no intersecting portion means that there is no intersecting portion in the non-embossed portion in each sheet, or the non-embossed portions do not intersect with each other.

By adopting such a configuration, in the fifth aspect, a portion in which oil or the like in the non-embossed portion may stay is not formed. Therefore, according to the fifth aspect, it is possible to further improve the diffusibility of the oil and the like, and to further reduce the breakthrough of the oil and the like.

The sixth aspect of the present invention is a sanitary thin paper in which the area ratio of the first non-embossed portion and the second non-embossed portion is 3 to 16%. In this specification, the area ratio of a non-embossed part is a ratio of the area of the non-embossed part which occupies in the sheet surface where a non-embossed part is formed. When the area ratio of the non-embossed portion is less than 3%, there is a possibility that sufficient dispersibility of oil or the like cannot be obtained. Moreover, when the area ratio of a non-embossed part exceeds 13%, since there are few embossing convex parts, sufficient intensity | strength with respect to the thickness direction at the time of a load may not be obtained. The area ratio of the non-embossed portion formed on each sheet is preferably 5 to 13%, more preferably 6 to 11%.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, in this specification, in order to understand easily, the reduced scale of each member in each figure may differ from the actual. In addition, portions common to the drawings may be denoted by the same reference numerals and description thereof may be omitted.

FIG. 1 is a view showing a kitchen paper according to an embodiment (first embodiment) of the present invention. 2A is a view showing a first sheet constituting the kitchen paper of FIG. 1, and FIG. 2B is a second sheet laminated on the first sheet of FIG. 2A. FIG.

1 and 2, the kitchen paper 100 includes a crepe paper 10 and a crepe paper 20. The aspect of the kitchen paper 100 is not particularly limited. For example, a roll type in which strip-shaped kitchen paper in which perforation lines for cutting are arranged at appropriate intervals is wound around a paper tube, or a pickup type, pop-up A laminated type in which sheet kitchen paper is folded and laminated, which is referred to as an equation or the like, can be used. The kitchen paper 100 is an example of the sanitary thin paper of the present invention, and the

crepe papers

10 and 20 are examples of the first and second sheets constituting the sanitary thin paper of the present invention.

The crepe paper 10 is a paper whose raw material is pulp. As the pulp composition, a known composition in kitchen paper can be used. For example, the blending ratio of the pulp can be 50% by mass or more, preferably 90% by mass or more, and more preferably 100% by mass. The crepe paper 20 can also be the same paper as the crepe paper 10.

The pulp composition is, for example, an appropriate ratio of softwood pulp such as NBKP (conifer kraft pulp) or NUKP (unleaved softwood pulp) and broadleaf pulp such as LBKP (hardwood kraft pulp) or LUKP (hardwood unbleached pulp). Can be used. In particular, it is preferable that the softwood pulp has a greater pulp composition than the hardwood pulp. The ratio of coniferous pulp to hardwood pulp is preferably 50:50 to 80:20.

The

crepe paper

10 and 20 is paper having a basis weight of 15 to 30 g / m ^{2 based on} JIS P 8124 (1998). When the basis weight of the

crepe papers

10 and 20 is adjusted within this range, sufficient liquid diffusibility is obtained when a liquid such as water or oil touches the paper surface, and particularly high water absorption performance is obtained. Moreover, when the basis weight is within this range, flexibility and followability when used as kitchen paper can be obtained.

Here, the kitchen paper according to the present embodiment (first embodiment) will be described in more detail. 3A is an enlarged view of a portion surrounded by a line 3A in FIG. 2A, and FIG. 3B is an enlarged view of a portion surrounded by a line 3B in FIG. 2B. FIG. 3C is an enlarged view of a portion surrounded by line 3C in FIG. 4A is a cross-sectional view taken along line 4A-4A in FIG. 3A, and FIG. 4B is a cross-sectional view taken along line 4B-4B in FIG. 3B. ) Is a cross-sectional view taken along line 4C-4C of FIG. 5A is an enlarged view of a portion surrounded by a line 5A in FIG. 2A, and FIG. 5B is an enlarged view of a portion surrounded by a line 5B in FIG. 2B. FIG. 5C is an enlarged view of a portion surrounded by line 5C in FIG. 6A is a cross-sectional view taken along line 6A-6A in FIG. 5A, FIG. 6B is a cross-sectional view taken along line 6B-6B in FIG. 5B, and FIG. FIG. 6C is a sectional view taken along line 6C-6C in FIG.

The crepe paper 10 has a plurality of embossed protrusions EC1 and a plurality of embossed recesses ED1 corresponding to the embossed protrusions EC1 on the front and back of the crepe paper 10 (see FIGS. 3 and 5). The top of each embossed convex part EC1 (or the opening of the embossed concave part ED1) has a quadrangular shape in plan view (see FIGS. 3 and 5). Further, the side surface of the embossed protrusion EC1 (or the embossed recess ED1) is formed with a taper (not shown) from the bottom of the embossed recess ED1 toward the opening.

The embossed convex part EC1 is formed on one surface of the crepe paper 10 by pressing a convex emboss roll (not shown) against the crepe paper 10 by a known steel rubber embossing method. On the other hand, the embossed recess ED1 is formed on the other surface of the crepe paper 10 as an embossed recess corresponding to the embossed protrusion EC1 (see FIGS. 3 to 6).

The crepe paper 10 has an embossed portion 30 and a non-embossed portion 50. The embossed portion 30 is formed with a plurality of embossed convex portions EC1 and a plurality of non-embossed convex portions NE1. On the other hand, the non-embossed portion 50 is not formed with any of the plurality of embossed convex portions EC1 and the plurality of non-embossed convex portions NE1 (see FIGS. 2 to 6).

Here, the non-embossed convex portion NE1 indicates a portion where the convex portion surrounded by the plurality of embossed convex portions EC1 is not formed (see FIGS. 3 to 6). The embossed portion 30 and the non-embossed portion 50 are examples of the first embossed portion and the first non-embossed portion that are formed on the first sheet constituting the sanitary thin paper of the present invention.

The crepe paper 20 is formed with a plurality of embossed protrusions EC2 and a plurality of embossed recesses ED2 corresponding to the embossed protrusions EC2 on the front and back of the crepe paper 20 (see FIGS. 3 and 5). The top of each embossed convex part EC2 (or the opening of the embossed concave part ED2) has a quadrangular shape in plan view (see FIGS. 3 and 5). Further, the side surface of the embossed protrusion EC2 (or the embossed recess ED2) is formed with a taper (not shown) from the bottom of the embossed recess ED2 toward the opening.

Similarly to the crepe paper 10, the embossed convex part EC <b> 2 is formed on one surface of the crepe paper 20 by pressing a convex emboss roll (not shown) against the crepe paper 20. On the other hand, the embossed recess ED2 is formed on the other surface of the crepe paper 20 as an embossed recess corresponding to the embossed convex part EC2 (see FIGS. 3 to 6).

The crepe paper 20 has an embossed portion 40 and a non-embossed portion 60. The embossed portion 40 is formed with a plurality of embossed convex portions EC2 and a plurality of non-embossed convex portions NE2. On the other hand, the non-embossed portion 60 is not formed with a plurality of embossed convex portions EC2 and a plurality of non-embossed convex portions NE2 (see FIGS. 2 to 6).

Here, the non-embossed convex portion NE2 indicates a portion where the convex portion surrounded by the plurality of embossed convex portions EC2 is not formed (see FIGS. 3 to 6). The embossed portion 40 and the non-embossed portion 60 are an example of a second embossed portion and a second non-embossed portion that are formed on the second sheet constituting the sanitary thin paper of the present invention.

In the kitchen paper 100 of the first embodiment, the crepe paper 10 and the crepe paper 20 are integrated with the formation surfaces of the embossed protrusions EC1 and EC2 facing each other in a nested manner. Specifically, the embossed convex part EC1 of the crepe paper 10 is arranged to face the non-embossed convex part NE2 (part where the embossed convex part EC2 is not provided) of the crepe paper 20. On the other hand, the embossed convex part EC2 of the crepe paper 20 is disposed so as to face the non-embossed convex part NE1 (the part where the embossed convex part EC1 is not provided) of the crepe paper 10 (see FIGS. 1 to 6).

Further, the top of the embossed convex part EC1 of the crepe paper 10 is bonded to the non-embossed convex part NE2 of the crepe paper 20 with an adhesive (not shown) (see FIGS. 4 and 6). By adhering the top of the embossed convex part EC1 of the crepe paper 10 and the non-embossed convex part NE2 of the crepe paper 20, the bonded part of the two

crepe papers

10 and 20 is placed on one crepe paper (crepe paper 10) side. It can be arranged in a well-balanced manner. Therefore, a decrease in absorption performance due to the adhesive can be reduced.

In addition, the well-known adhesive employ | adopted as the kitchen paper which has a laminated structure can be used for an adhesive agent. Examples of such an adhesive include cellulose-based adhesives such as polyvinyl alcohol, starch, modified starch, and carboxymethyl cellulose.

Instead of adhering the top of the embossed convex part EC1 of the crepe paper 10 and the non-embossed convex part NE2 of the crepe paper 20, the top of the embossed convex part EC2 of the crepe paper 20 and the non-embossed convex part NE1 of the crepe paper 10 May be adhered. Further, the top of the embossed protrusion EC1 of the crepe paper 10 is bonded to the non-embossed protrusion NE2 of the crepe paper 20, and the top of the embossed protrusion EC2 of the crepe paper 20 is bonded to the non-embossed protrusion NE1 of the crepe paper 10. May be.

In the first embodiment, as shown in FIGS. 1 to 6, the non-embossed portion 50 of the crepe paper 10 faces the embossed portion 40 of the crepe paper 20, and the non-embossed portion 60 of the crepe paper 20 The embossed portion 30 and the non-embossed portion 50 are formed on the crepe paper 10, and the embossed portion 40 and the non-embossed portion 60 are formed on the crepe paper 20.

In the first embodiment, by adopting such a configuration, the non-embossed portion 50 of the crepe paper 10 and the non-embossed portion 60 of the crepe paper 20 do not face each other between the crepe paper 10 and the crepe paper 20. A non-embossed space that is easily crushed is not formed between the crepe paper 10 and the crepe paper 20 (see FIGS. 4 and 6). Therefore, according to 1st Embodiment, the intensity | strength of the thickness direction with respect to the load of the kitchen paper 100 can be made high, and the absorption performance at the time of a load is improved (for example, the fall-through of the oil etc. of the kitchen paper 100 is reduced. )be able to.

Further, in a structure in which the non-embossed portion 50 of the crepe paper 10 and the non-embossed portion 60 of the crepe paper 20 do not face each other, the

non-embossed portions

50, 60 are dispersed and arranged in the kitchen paper 100. , 60 makes it easy for oil and the like to diffuse (see FIGS. 1 to 6). Therefore, according to the first embodiment, diffusibility of absorbed oil or the like can be maintained without forming a non-embossed space, and a decrease in absorption speed can be suppressed.

Further, in the first embodiment, a non-embossed space is not formed between the crepe paper 10 and the crepe paper 20, and naturally there is no intersection (a part where oil or the like is likely to stay) where the non-embossed space intersects ( (See FIG. 1). Therefore, in the first embodiment, it is possible to improve the diffusibility of oil and the like, and to reduce the penetration of oil and the like.

Further, in the first embodiment, the

non-embossed portions

50 and 60 are dispersed and arranged in the kitchen paper 100 (see FIGS. 1 and 2). Therefore, according to the first embodiment, the design can be maintained without forming a non-embossed space.

Moreover, FIG. 7 is a figure which shows the kitchen paper which concerns on embodiment (2nd Embodiment) of this invention. 8A is a diagram showing a first sheet constituting the kitchen paper of FIG. 7, and FIG. 8B is a second sheet laminated on the first sheet of FIG. 8A. FIG.

As shown in FIGS. 7 and 8, in the second embodiment, as in the first embodiment, the non-embossed portion 50 of the crepe paper 10 faces the embossed portion 40 of the crepe paper 20 and the non-embossed portion of the crepe paper 20. The embossed portion 30 and the non-embossed portion 50 are formed on the crepe paper 10, and the embossed portion 40 and the non-embossed portion 60 are formed on the crepe paper 20 so that the portion 60 faces the embossed portion 30 of the crepe paper 10. .

Also in the second embodiment, by adopting such a configuration, the non-embossed portion 50 of the crepe paper 10 and the non-embossed portion 60 of the crepe paper 20 do not face each other between the crepe paper 10 and the crepe paper 20. A non-embossed space that is easily crushed is not formed between the crepe paper 10 and the crepe paper 20 (see FIGS. 7 and 8). Therefore, according to 2nd Embodiment, the intensity | strength of the thickness direction with respect to the load of the kitchen paper 100 can be made high, and the absorption performance at the time of a load is improved (for example, the fall-through of the oil etc. of the kitchen paper 100 is reduced. )be able to.

Also in the second embodiment, in a structure in which the non-embossed portion 50 of the crepe paper 10 and the non-embossed portion 60 of the crepe paper 20 do not face each other, the

non-embossed portions

50, 60 are distributed in the kitchen paper 100. Therefore, oil and the like are easily diffused through the non-embossed portions 50 and 60 (see FIGS. 7 and 8). Therefore, according to the second embodiment, diffusibility of absorbed oil or the like is maintained without forming a non-embossed space, and a decrease in absorption speed can be suppressed.

Also in the second embodiment, a non-embossed space is not formed between the crepe paper 10 and the crepe paper 20, and there is naturally no intersection (a part where oil or the like easily stays) where the non-embossed space intersects ( (See FIGS. 7 and 8). Therefore, in the second embodiment, it is possible to improve the diffusibility of oil or the like and reduce the back-through of the oil or the like.

Also in the second embodiment, the

non-embossed portions

50 and 60 are dispersed and arranged in the kitchen paper 100 (see FIGS. 7 and 8). Therefore, according to the second embodiment, the design can be maintained without forming a non-embossed space.

Also, in the second embodiment, since a nested-type laminated structure is adopted (see FIGS. 7 and 8), the contact area with the target of use of the kitchen paper 100 (for example, tableware, fried food, etc.) should be reduced. The space in the kitchen paper 100 is not easily crushed even when a load is applied during use. In addition, the absorption speed can be maintained and the absorption performance under load can be maintained without providing a non-embossed space between the crepe paper 10 and the crepe paper 20. Therefore, according to 2nd Embodiment, the basic weight and paper thickness of the

crepe paper

10 and 20 can be made small, and the thickness of the kitchen paper 100 can be made thin.

In the second embodiment, as shown in FIG. 7, the kitchen paper 100 has two or more sheet regions. As shown in FIGS. 2A and 8A, the sheet area of the crepe paper 10 (first sheet area 11, second sheet area 12, third sheet area 13, and fourth sheet area). 14), a region having the non-embossed portion 50 and a region not having the non-embossed portion 50 are formed.

On the other hand, as shown in FIGS. 2B and 8B, the sheet regions of the crepe paper 20 (the fifth sheet region 21, the sixth sheet region 22, the seventh sheet region 23, and the eighth sheet region). In the sheet region 24), a region having a non-embossed portion 60 and a region not having the non-embossed portion 60 are formed. And it arrange | positions so that the area | region which has the non-embossed part 50 and the area | region which has the non-embossed part 60 may not overlap.

Specifically, as shown in FIGS. 1 and 7, the kitchen paper 100 has four regions 70. The four regions 70 can be divided into a first region 71 to a fourth region 74. Of the four regions 70, the first region 71 and the third region 73 have the non-embossed portion 60 of the crepe paper 20, and the second region 72 and the fourth region 74 have the crepe paper 10. The non-embossed portion 50 is arranged.

In the present embodiment (first embodiment and second embodiment), as shown in FIGS. 2A and 8A, the embossed portion 30 of the crepe paper 10 is moved from the first embossed region 31 to the fourth embossed region 31. The embossed area 34 is divided, and the non-embossed portion 50 of the crepe paper 10 is divided into a second non-embossed area 52 and a fourth non-embossed area 54. 2B and 8B, the embossed portion 40 of the crepe paper 20 is divided into a first embossed region 41 to a fourth embossed region 44, and the non-embossed portion of the crepe paper 20 is divided. 60 is divided into a first non-embossed region 61 and a third non-embossed region 63.

Then, in the first region 71 among the four regions of the kitchen paper 100, the first embossed region 31 of the crepe paper 10 and the first non-embossed region 61 of the crepe paper 20 face each other. Further, in the second region 72, the second non-embossed region 52 of the crepe paper 10 and the second embossed region 42 of the crepe paper 20 face each other. Further, in the third region 73, the third embossed region 33 of the crepe paper 10 and the third non-embossed region 63 of the crepe paper 20 face each other. In the fourth region 74, the fourth non-embossed region 54 of the crepe paper 10 and the fourth embossed region 44 of the crepe paper 20 face each other (see FIGS. 1 to 8).

In the present embodiment, the non-embossed portion 50 of the crepe paper 10 is disposed in the second and

fourth regions

72 and 74, and the non-embossed portion 60 of the crepe paper 20 is disposed in the first and

third regions

71 and 73. Has been placed. In such a configuration, the

non-embossed areas

52, 54, 61, 63 of the

non-embossed sections

50, 60 arranged in the four areas do not face each other between the crepe paper 10 and the crepe paper 20. Therefore, a non-embossed space (a space that is easily crushed) formed by the non-embossed portions facing each other is not formed (see FIGS. 1 to 8).

Thereby, in this embodiment, the areas of the

non-embossed regions

52, 54, 61, 63 of the

non-embossed portions

50, 60 formed on each crepe paper can be increased. As a result, in this embodiment, the strength in the thickness direction with respect to the load can be maintained, and the absorption performance at the time of the load can be improved. Further, in the present embodiment, even if there is no non-embossed space, it is possible to suppress a decrease in dispersibility of oil and the like, and to maintain design properties (see FIGS. 1 to 8).

In the present embodiment, the pattern of the non-embossed portion 50 of the crepe paper 10 facing the embossed portion 40 of the crepe paper 20 and the pattern of the non-embossed portion 60 of the crepe paper 20 facing the embossed portion 30 of the crepe paper 10 are 90. ° × n rotational symmetry. Here, n is an odd number. Specifically, as shown in FIG. 1, the pattern of the non-embossed portion 50 of the crepe paper 10 and the pattern of the non-embossed portion 60 of the crepe paper 20 are 90 ° or 270 ° rotationally symmetrical (FIG. 1, (See FIGS. 2, 7, and 8).

In addition, the shape of the pattern of the non-embossed part is arbitrary. In the present embodiment, in the first embodiment shown in FIG. 1, the shape of the pattern is a cross shape as shown in FIGS. Moreover, in 2nd Embodiment shown in FIG. 7, as shown in FIG.7 and FIG.8, the four patterns formed in each non-embossed area |

region

52,54,61,63 are each comprised by the rectangle.

By forming the

non-embossed portions

50 and 60 having such a rotationally symmetrical positional relationship on the

crepe paper

10 and 20, respectively, the non-embossed portions are regularly arranged between the crepe paper 10 and the crepe paper 20. Can be arranged. That is, as shown in FIGS. 1, 2, 7, and 8, the pattern of the

non-embossed portions

50 and 60 can exhibit a geometric pattern when viewed as a whole of the kitchen paper 100. Therefore, according to this embodiment, even if it does not provide a non-embossing space, the fall of dispersibility, such as an oil component, can further be suppressed and design property can be maintained.

In other words, in this embodiment, as shown in FIG. 1 to FIG. 8, the pattern of the non-embossed portion 50 of the crepe paper 10 facing the embossed portion 40 of the crepe paper 20 and the embossed portion of the crepe paper 10 are used. The pattern of the non-embossed portion 60 of the crepe paper 20 facing 30 is line symmetric.

By forming the

non-embossed portions

50 and 60 having such a pattern having a line-symmetrical positional relationship on the

crepe paper

10 and 20, respectively, the

non-embossed portions

50 and 60 are provided between the crepe paper 10 and the crepe paper 20. They can be arranged regularly (see FIGS. 1, 2, 7, and 8). Therefore, according to the present embodiment, it is possible to further suppress a decrease in dispersibility of oil and the like, and to maintain design properties.

In the present embodiment, as shown in FIGS. 1, 2, 7, and 8, the non-embossed portion 50 of the crepe paper 10 and the non-embossed portion 60 of the crepe paper 20 are configured not to have an intersection. Yes. That is, there is no portion where the non-embossed portions intersect in the

non-embossed portions

50, 60 of the

crepe paper

10, 20. Specifically, an embossed convex portion NC1 is formed at a portion where the non-embossed portion 50 of the crepe paper 10 can be crossed, and an embossed convex portion is formed at a portion where the non-embossed portion 60 of the crepe paper 20 can be crossed. NC2 is formed (see FIGS. 1 to 8).

By adopting such a structure having no intersecting portion, in this embodiment, there is no intersecting portion where oil or the like may stay in the

non-embossed portions

50, 60. Therefore, according to the present embodiment, it is possible to further improve the diffusibility of the oil and the like, and to further reduce the breakthrough of the oil and the like (see FIGS. 1 and 7).

In the present embodiment, the area ratio of the non-embossed portion 50 of the crepe paper 10 and the non-embossed portion 60 of the crepe paper 20 (ratio of the area of the non-embossed portion in the sheet surface on which the non-embossed portion is formed) is 3 -16%, preferably 5-13%, more preferably 6-11%. When the area ratio of the

non-embossed portions

50 and 60 is less than 3%, there is a possibility that sufficient dispersibility of oil or the like cannot be obtained. Moreover, when the area ratio of the

non-embossed parts

50 and 60 exceeds 13%, the number of embossed convex parts is small, so that there is a possibility that sufficient strength in the thickness direction under load cannot be obtained.

Hereinafter, the present invention will be described in more detail using examples. The measurement and evaluation of Examples and Comparative Examples were performed as follows.

[Base paper]
[Basis weight]
The basis weight (US tsubo, g / m ² ) of the crepe paper (base paper) of the kitchen paper used in the test is calculated according to JIS P 8124 (1998).

[Bulk]
Measure the bulk (5 sheets) (mm) of the kitchen paper. The measuring method of the bulk of the kitchen paper is that after a test piece cut to 12 cm × 12 cm is sufficiently conditioned under the conditions of JIS P 8111 (1998), a dial thickness gauge (thickness measuring instrument) “PEACOCK G” is used under the same conditions. Measured using “type” (manufactured by Ozaki Seisakusho). The specific procedure for measurement is to confirm that there is no dust, dust, etc. between the plunger and the measurement table. Then, lower the plunger on the measurement table and move the dial thickness gauge memory to set the zero point. Match. Next, the plunger is raised, the test piece is placed on the test table, the plunger is slowly lowered, and the gauge at that time is read. At this time, only the plunger is placed. The plunger terminal is made of metal so that a circular plane having a diameter of 30 mm is perpendicular to the plane of the paper. The load at the time of measuring the bulk is about 70 gf at 120 μm. In addition, let the measured value of a bulk be an average value obtained by measuring 10 times.

[Compression test]
As a measurement method of the compression test, a test piece cut to 12 cm × 12 cm is prepared, and an initial thickness TO and a thickness TM under load are measured using a compression tester of KES-G5 (manufactured by Kato Tech). Measurement conditions are: pressurizer area: 2 cm ² , force meter: 1 kg, CHECK switch: MES, DEF output sensitivity dial: 2 mm / V, upper limit load: 10 gf / cm ² (SENS: 2, STOROKET SET dial: 1), SPEED : 0.02 cm / s (SPEED RANGE switch: 0.1, SPEED SET switch: 2), REPEAT SINGLE switch: SHINGLE, CONTROL switch: INT, STOP switch: OFF. Here, the initial thickness TO is the thickness of the test piece when the load pressure reaches 0.5 g / cm ² , and the thickness TM when loaded is the upper limit load (10 gf / cm ² ). It is the thickness of the test piece when it is reached. The measurement is performed by measuring three times each of the initial thickness TO and the thickness TM at the time of loading, and rounding off the third decimal place of the average value to obtain the second decimal place. From the calculated initial thickness TO and the thickness TM at the time of loading, a compression rate (crushing rate) at the time of loading is calculated. The compression rate under load is calculated from the following formula. The value is calculated by rounding off the second decimal place to the first decimal place.
・ Compression rate under load (%) = (initial thickness TO−thickness TM under load) ÷ initial thickness TO × 100

[Oil absorption test]
The measuring method of the oil absorption test (oil absorption test) cuts the test piece 200 into 12 cm × 12 cm, similarly to the measurement of the bulk. Using an electronic balance (HR300 manufactured by A & D Co., Ltd.), the plastic sheet 202 (dimensions: about 12 cm × 12 cm, thickness: 0.2 mm, weight: 2.7 g, material) shown in FIG. : Polypropylene), test piece 200, weight 204 (diameter: about 82 mm, thickness: 10 mm, weight: 59 g, material: acrylic), lower paper 208 (5 sheets of copy paper cut to about 12 cm × 12 cm) Measure each weight. After the measurement, the test piece 200 is placed on the plastic sheet 202, and the weight 204 is placed in the center of the test piece 200. The weight 204 is provided with a hole penetrating in the thickness direction. The diameter of the hole is about 12 mm.

After that, 2.3 ml (about 2.0 g) of oil 206 (normal temperature salad oil) (Nisshin Oillio Group Nisshin Salad Oil) was weighed with a pipette (Thermo scientific, Finnpipette F2, 0.5-5 ml). Drop from 204 holes. At this time, the dropping position (embossed portion) is fixed to the center position of the test piece 200 as shown in FIG. After dropping, the time until the oil in the hole of the weight 204 is absorbed by the test piece 200 (speed until the oil is sucked out) and the time until the oil 204 protrudes from the diameter (speed until the oil stain protrudes from the weight). Also measure.

2 minutes after dropping, the weight 204 is removed and the weight (return amount of (1) in the figure) is measured. Thereafter, the plastic sheet 202 is removed, and the weight (the amount of see-through in (2) in the figure) is measured. Then, after measuring the weight of the test piece 200 (absorption amount of (3) in the figure) and placing it again on the lower paper 208, the weight of the test piece 200 (the amount of oil finally retained, 4), and the amount of oil of the lower paper 208 (the amount of oil that could not be retained, the amount of final back-through of (5) in the figure). At this time, the number of sheets when oil penetrated into the lower paper 208 was also measured (see FIG. 9).

For each test piece 200, as shown in FIG. 9, the test piece oil absorption amount (g), the back-through amount (g), the return amount (g), the dropped oil amount (g), the final retained amount (g), the back-through Total amount (g), test piece oil absorption rate (%) with respect to dripping oil amount, strike-through rate (%), return rate (%), final retention rate (%), strike-through rate (%), oil was absorbed The time (s), the time until oil stains protrude from the weight 204 (s), and the number of permeation (sheets) were measured.

Each item, such as the test piece oil absorption (g), was calculated by the formulas listed below.
Test piece oil absorption (g) = Test piece weight after 2 minutes of dropping-Test piece weight-Back-through amount (g) = Plastic sheet weight after 2 minutes of dropping-Plastic sheet weight and return amount (g ) = Weight of weight 2 minutes after dropping-weight weight / dropped oil amount (g) = oil absorption amount of test piece + back-through amount + return amount / final holding amount (g) = weight of test piece after 5 minutes-weight of test piece -Final amount of through-through (g) = Weight of base paper after 5 minutes-Weight of under-paper-Total amount of through-through (g) = Back-through amount + Final amount of through-through-Test piece oil absorption (%) = Test piece oil absorption Amount ÷ dripping oil amount × 100
・ Betrayal rate (%) = Throughthrough amount ÷ Drip amount of oil × 100
・ Return rate (%) = Return amount ÷ Drip oil amount × 100
・ Final retention rate (%) = Final retention amount / Drip oil amount × 100
-Final strike-through rate (%) = final strike-through amount / dropped oil amount × 100
・ Total rate of strikethrough (%) = Total amount of strikethrough ÷ Drip amount of oil × 100
Test piece oil absorption (g), amount of through-through (g), amount of return (g), amount of dripped oil (g), final retained amount (g), amount of through-through through (g), total amount of through-through (g ) Is an average value obtained by performing the measurement three times. From these test piece oil absorption (g), etc., the test piece oil absorption rate (%), strikethrough rate (%), return rate (%), final retention rate (%), final strikethrough rate (%), strikethrough The total rate (%) was calculated.

[Example 1]
In Example 1, the kitchen paper 100 of the first embodiment shown in FIGS. 1 to 6 was used. In Example 1, a base paper having a fiber raw material of 100% by mass of pulp and 22.1 g / m ² of rice tsubo was used (1 ply). As for the embossing conditions, a nested format is adopted, the pattern of the

non-embossed portions

50 and 60 is a cross shape with no cross portion in the cross shape, the number of embossed convex portions is 2090/144 cm ^2, and crepe paper The area ratio of the ten embossed convex parts EC1 and the non-embossed convex part NE2 of the crepe paper 20 is 8.4%, the volume of all the embossed convex parts is 10738 mm ^2, and the area ratio of the

non-embossed parts

50 and 60 is 10 0.8%. The conditions and results of Example 1 are shown in Table 1.

[Example 2]
In Example 2, the kitchen paper 100 of 2nd Embodiment shown in FIG.7 and FIG.8 was used. In the second embodiment, among the embossing conditions, four elongated rectangles are arranged at predetermined intervals in each pattern of the

non-embossed regions

52 and 54 of the non-embossed portion 50 and the

non-embossed regions

61 and 63 of the non-embossed portion 60. The number of embossed protrusions is 2137/144 cm ² , the area ratio of the embossed protrusion EC1 of the crepe paper 10 and the non-embossed protrusion NE2 of the crepe paper 20 is 8.6%, and all the embossed protrusions The volume of the part was 10631 mm ² and the same as Example 1 except that the area ratio of the

non-embossed parts

50 and 60 was 6.7%. The conditions and results of Example 2 are shown in Table 1.

[Comparative Example 1]
In Comparative Example 1, the kitchen paper 100 shown in FIGS. 10 to 13 was used. In Comparative Example 1, except that a tip-to-tip (TIP TO TIP) format is adopted, the area ratio of the

non-embossed portions

50 and 60 is 37.4%, and the pattern of the

non-embossed portions

50 and 60 is a lattice shape. In the same manner as in Example 1. In Comparative Example 1, the non-embossed portion 50 and the non-embossed portion 60 are formed to face each other, and a non-embossed space LN having a crossing portion CP is formed. The conditions and results of Comparative Example 1 are shown in Table 1.

[Comparative Example 2]
In Comparative Example 2, the kitchen paper 100 shown in FIGS. 14 to 17 was used. In Comparative Example 2, the pattern of the

non-embossed portions

50 and 60 is a honeycomb shape, the number of embossed convex portions is 2172/144 cm ² , the embossed convex portion EC1 of the crepe paper 10 and the non-embossed convex portion NE2 of the crepe paper 20 the gluing area ratio 8.1%, the volume of the entire embossing protrusions and 13275Mm ^2, except that each area ratio of the

non-embossed portions

50 and 60 was 19.1%, and in the same manner as in example 1. In Comparative Example 2, the non-embossed portion 50 and the non-embossed portion 60 are formed to face each other, and a non-embossed space LN having a crossing portion CP is formed. The conditions and results of Comparative Example 2 are shown in Table 1.

According to Table 1, when the results of the compression test at the time of loading are compared, in Example 1 and Example 2 (see FIGS. 1 to 8), the initial thickness TO is Comparative Example 1 and Comparative Example 2 (FIGS. 10 to 17). The compression ratio under load was smaller than that of Comparative Example 1 (see FIGS. 10 to 13). Further, the compressibility at the time of loading was equivalent to that of Comparative Example 2 (see FIGS. 14 to 17). That is, Example 1 and Example 2 have a nested laminated structure, and thus are not easily crushed against a load.

Comparing the results of the oil absorption test, in Example 1 and Example 2, both of the test piece oil absorption rate and the final retention rate with respect to the amount of dropped oil are higher than those of Comparative Example 1 and Comparative Example 2. Moreover, the return rate of the test piece with respect to the amount of dropped oil is lower than that of Comparative Example 1 and Comparative Example 2. That is, the oil retention performance of Example 1 and Example 2 is high. In particular, Example 1 and Example 2 show high oil retention performance compared to Comparative Example 2 having the same nested type laminated structure.

Further, in Example 1 and Example 2, both the strike-through rate and the fall-through total rate with respect to the amount of dropped oil are lower than those in Comparative Example 1 and Comparative Example 2. This result shows that in Examples 1 and 2, oil penetration is suppressed (difficult to ooze out). In particular, Example 1 and Example 2 show that oil does not easily penetrate through the comparative example 2 having the same nested type laminated structure.

Furthermore, in Example 1 and Example 2, both the speed until the oil is sucked out and the speed until the oil stain protrudes from the weight are higher than those in Comparative Example 1 and Comparative Example 2. That is, Example 1 and Example 2 show that the oil absorption rate is fast and the dispersibility of the absorbed oil is improved.

Moreover, even if it compares design property, in Example 1 and Example 2, since the non-embossed part is arrange | positioned in the whole kitchen paper 100, it is not inferior to the design property of the comparative example 1 and the comparative example 2 ( (See FIGS. 1-8).

From these results, as in this embodiment, the sanitary thin paper in which the first non-embossed portion faces the second embossed portion and the second non-embossed portion faces the first embossed portion is diffused. It has been found that it is excellent in absorption performance under load while maintaining its properties and design.

The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific embodiments, and various modifications and changes can be made within the scope of the invention described in the claims. Is possible.

This international application claims priority based on Japanese Patent Application No. 2017-39661 filed on Mar. 2, 2017, the entire contents of which are incorporated herein by reference.

100 Kitchen paper 10 Crepe paper EC1 Embossed convex part ED1 Embossed concave part NE1 Non-embossed convex part 11 First sheet area 12 Second sheet area 13 Third sheet area 14 Fourth sheet area 20 Crepe paper EC2 Embossed convex part ED2 Embossed concave portion NE2 Non-embossed convex portion 21 Fifth sheet region 22 Sixth sheet region 23 Seventh sheet region 24 Eighth sheet region 30 Embossed portion 31 First embossed region 32 Second embossed region 33 Third Embossed region 34 Fourth embossed region 40 Embossed portion 41 First embossed region 42 Second embossed region 43 Third embossed region 44 Fourth embossed region 50 Non-embossed portion NC1 Embossed convex portion 52 Second non-embossed region 54 4th non-embossing area 60 Non-embossing NC2 embossing convex portion 61 first non-embossed regions 63 third non-embossed regions 70 area 71 first area 72 second area 73 third region 74 fourth region

Claims

A first sheet in which a plurality of embossed protrusions and embossed recesses corresponding to the embossed protrusions are formed on the front and back;
A second sheet in which a plurality of embossed convex portions and a plurality of embossed concave portions corresponding to the embossed convex portions are formed on the front and back sides;
The first sheet and the second sheet are sanitary thin papers in which embossed convex portions are formed so as to face each other in a nested manner and are integrated,
In the first sheet, a first embossed portion in which a plurality of embossed convex portions and a plurality of non-embossed convex portions are formed, and a plurality of embossed convex portions and a plurality of non-embossed convex portions are not formed. With a non-embossed part,
In the second sheet, a second embossed portion in which a plurality of embossed convex portions and a plurality of non-embossed convex portions are formed, and a plurality of embossed convex portions and a plurality of non-embossed convex portions are not formed. With a non-embossed part,
The first non-embossed portion faces the second embossed portion,
The second non-embossed portion is a sanitary thin paper that faces the first embossed portion.
Each of the first sheet and the second sheet has two or more sheet regions,
In the sheet region of the first sheet, a region having the first non-embossed portion and a region not having the first non-embossed portion are formed,
In the sheet region of the second sheet, a region having the second non-embossed portion and a region not having the second non-embossed portion are formed,
The sanitary thin paper according to claim 1, wherein the region having the first non-embossed portion and the region having the second non-embossed portion are arranged so as not to overlap each other.
The pattern of the first non-embossed portion facing the second embossed portion and the pattern of the second non-embossed portion facing the first embossed portion are 90 ° × n rotationally symmetric (n is an odd number) The sanitary thin paper according to claim 1, wherein
2. The pattern of the first non-embossed portion facing the second embossed portion and the pattern of the second non-embossed portion facing the first embossed portion are axisymmetric. Sanitary tissue paper.
The sanitary thin paper according to claim 1, wherein at least one of the first non-embossed portion and the second non-embossed portion has no intersection.
The sanitary thin paper according to any one of claims 1 to 5, wherein an area ratio of the first non-embossed portion and the second non-embossed portion is 3 to 16%.