Embossed paper for daily use

Abstract

The invention provides embossed paper for daily use, which comprises a body, the body comprises an upper paper layer and a lower paper layer, the upper paper layer comprises a central area and an edge area surrounding the periphery of the central area, the edge area is provided with a first embossed pattern, the first embossed pattern comprises a plurality of first indentations arranged in rows, and the first indentations are arranged in the central area. The second embossed pattern comprises a regular and continuous pattern formed by dotted indentations, and the distribution density of the dotted indentations on the lower paper layer is larger than or equal to 300 / cm. Through the composite embossed design of the upper-layer indentations and the lower-layer ultra-high-density dot matrixes, the thickness and the strength are kept, and meanwhile, the density of the upper-layer indentations and the density of the lower-layer ultra-high-density dot matrixes are increased; the water absorption rate is remarkably increased, edge layering is reduced, the wiping comfort degree is optimized, and the comprehensive performance is remarkably superior to that of a traditional scheme.

Description

Technical Field

[0001] The invention relates to embossed household paper. Background Art

[0002] The use of household paper is becoming more and more widespread and has become an indispensable necessity for people. With the improvement of living standards, people have put forward more diverse demands on paper. In some occasions, people hope that the paper has a thicker feel. In order to meet people's needs, more and more products use a structure of more than four layers, especially paper handkerchief-type products.

[0003] Conventional paper handkerchief products usually include a body formed by two, three or more layers of base layers, with embossing provided along the outer edge of the body to combine the base layers and facilitate the diffusion of liquid around them, such as the embossing form shown in documents such as CN201453095U. In further improvements, such as the document CN102525323A, it is further proposed to set a deeper indentation in the middle of the embossing to strengthen the combination and diffusion. However, when the body is three or four layers, the paper is too thick, and during the wiping process, the liquid passes through the paper. It often stays on the surface, and when there is moisture on the edge, it quickly penetrates due to the edge embossing, resulting in edge delamination. However, when full-lay embossing as shown in CN102715862A is further adopted, on the one hand, the pursuit of high bulk causes the roughness of the indentation on the skin surface, thereby reducing the wiping comfort. On the other hand, it leads to insufficient strength in the middle area. In addition, people also hope that the paper towel has good thickness and feel. Therefore, a paper towel product that takes into account strength, thickness, feel, wiping comfort and reduced edge delamination is needed.

[0004] Therefore, it is necessary to develop and implement a solution to solve the above technical problems. Summary of the Invention

[0005] To this end, the present invention provides an embossed household paper to solve the above technical problems.

[0006] An embossed household paper comprises a body, wherein the body comprises an upper paper layer and a lower paper layer, the upper paper layer comprising a central area and an edge area surrounding the central area, wherein a first embossed pattern is provided in the edge area, the first embossed pattern comprising a plurality of first indentations arranged in rows, and the second embossed pattern comprising a regular and continuous pattern of dot-shaped indentations, wherein the distribution density of the dot-shaped indentations on the lower paper layer is greater than or equal to 300 / cm².

[0007] There is no embossing pattern in the central area, and the first indentation includes a tip with a pointing direction, and the pointing direction is toward the central area or away from the central area.

[0008] Among them, the first embossing pattern includes several rows of first indentations, and the rows defined from the center area to the outside are the first row, the second row, the third row...the Nth row, and the lines connecting the midpoints of adjacent first indentations in the first row, the second row, the third row...the Nth row are parallel.

[0009] The first indentations in the first row point in a direction opposite to the directions of the first indentations in other rows.

[0010] The first indentations in the first row point from the center area to the outside, while the first indentations in the other rows point from the outside to the center area.

[0011] The first indentation includes a tip and a tail facing away from the tip, and a pair of side lines connecting the tip and the tail, wherein the spacing between the pair of side lines gradually increases from the tip to the tail.

[0012] In which, the pair of edge lines intersect at the tip to form a vertex, and the points on the pair of edge lines with the largest corresponding distance are defined as endpoints. A connecting line connects the endpoints on the pair of edge lines, and the connecting line includes a midpoint. The first indentation includes a pointing line, and the pointing line is the connecting line between the midpoint and the vertex. The pointing lines of any two first indentations are not collinear.

[0013] The lower paper layer includes a third surface adjacent to the upper paper layer, and the second embossed pattern is fully spread on the third surface.

[0014] Wherein, the point-shaped indentations are point-to-point embossing forms.

[0015] Among them, the lower paper layer includes a lower horizontal edge and a lower side edge, the dot indentations are arranged in rows, and the connecting line between adjacent dot indentations arranged in rows is defined as a first virtual straight line. The first virtual straight line is inclined to the lower horizontal edge, and the angle between the first virtual straight line and the lower horizontal edge is 3 to 15°.

[0016] Beneficial effect: The present invention provides an embossed household paper, comprising a main body, wherein the main body comprises an upper paper layer and a lower paper layer, the upper paper layer comprises a central area and an edge area surrounding the central area, wherein a first embossing pattern is arranged in the edge area, the first embossing pattern comprises a plurality of first indentations arranged in rows, the second embossing pattern comprises a regular and continuous pattern composed of point-shaped indentations, and the distribution density of the point-shaped indentations on the lower paper layer is greater than or equal to 300 / cm². The present invention adopts a composite embossing design of upper indentations and lower ultra-high-density dot arrays, which significantly improves the water absorption rate, reduces edge delamination, and optimizes wiping comfort while maintaining thickness and strength, and its comprehensive performance is significantly better than that of traditional solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the embossed pattern on the surface of the upper paper layer in the embossed household paper of the present invention; Figure 2 for Figure 1 Enlarged schematic diagram of area A in the middle; Figure 3 is a schematic diagram of the embossing pattern on the surface of the lower paper layer; Figure 4 for Figure 3 Enlarged schematic diagram of area B in the middle; Figure 5 Actual picture of the embossed household paper of the present invention.

[0018] Description of components in the picture: Upper paper layer 10; upper transverse edge 101; upper side edge 102; central area 11; edge area 12; first embossing pattern 120; first indentation 1200; tip 1201; tail 1202; edge lines 1203, 1204; midpoint 1205; pointing line 1206; first row 121; second row 122; third row 123; isolation area 13; third embossing pattern 130; first linear embossing 131; second linear embossing 132; lower paper layer 20; lower transverse edge 201; lower side edge 202; third surface 203; second embossing pattern 21; dot indentation 210; virtual straight line 211. DETAILED DESCRIPTION

[0019] In the following description, the following terms have the following meanings: "Embossed" refers to the process of deflecting a relatively small portion of a cellulosic fibrous structure perpendicular to its plane and pressing the protruding portions of the fibrous structure against a relatively hard surface, thereby permanently breaking the fiber-to-fiber bonds.

[0020] Please refer to Figures 1 to 5 An embodiment of the present invention provides an embossed household paper, which includes a main body, which includes an upper paper layer 10 and a lower paper layer 20. The upper paper layer 10 and the lower paper layer 20 each include at least one single-layer paper, and the single-layer paper includes one of cellulose fiber paper, non-woven fabric, and dust-free paper. The cellulose fiber paper can be made of various cellulose fibers through a wet or dry paper-making method. In this embodiment, the cellulose fiber can be a fiber material of wood pulp, straw pulp, and sugarcane pulp. In other embodiments, the cellulose fiber can also be a viscose fiber formed by wet spinning after the cellulose fiber is treated with alkalization or the like. That is, other non-natural fibers can also be added to the cellulose fiber paper, such as synthetic fibers such as polyester, nylon, acrylic, chlorofiber, vinylon, and spandex.

[0021] It is understandable that the basis weight of the single-layer paper can be 9 g / m2 ~70g / m 2 Preferably, the basis weight of the single-layer paper can be 10g / m 2 ~60g / m 2 More preferably, the basis weight of the single-layer paper is 12 g / m 2 ,14g / m 2 , 16g / m 2 , 18g / m 2 , 20g / m 2 ,22g / m 2 In some other embodiments, the vertical and horizontal average tensile index and thickness of the single-layer paper can also be limited so that the household paper of the present invention has a better water absorption effect. Optionally, the vertical and horizontal average tensile index is 4.120N·m / g~18.600N·m / g, and the thickness is 40μm~200μm, so that the performance of the household paper of the present invention is better.

[0022] In addition, the upper paper layer 10 and the lower paper layer 20 can both include at least two single layers of paper. The at least two single layers of paper constituting the upper paper layer 10 or the lower paper layer 20 can be the same or different. The "same" means that the physical properties of the two single layers of paper constituting the upper paper layer 10 are roughly the same. These physical properties can be basis weight, thickness, MDT, CDT, elongation and softness, etc. The "roughly" means that the ratio between the corresponding physical properties of the two single layers of paper is 0.9 to 1.1. At the same time, the "different" means that the two single layers of paper have different physical properties. At the same time, for the convenience of production, usually, the elongation of the at least two single layers of paper constituting the upper paper layer 10 should be roughly the same, and the elongation of the at least two single layers of paper constituting the lower paper layer 20 should be roughly the same.

[0023] The upper paper layer 10 is provided with a first embossed pattern 120. Specifically, the upper paper layer 10 includes a central area 11 and an edge area 12. The edge area 12 is arranged around the central area 11. The first embossed pattern 120 is arranged in the edge area 12. No embossed pattern is provided in the central area 11, that is, the central area 11 presents a flat surface. In this embodiment, the upper paper layer 10 is configured into a rectangular shape, including a pair of parallel upper horizontal edges 101 and a pair of parallel upper side edges 102. The upper horizontal edges 101 are perpendicular to the upper side edges 102, and the edge area 12 is an area adjacent to the upper horizontal edges 101 and the upper side edges 102. In this embodiment, the edge area 12 is actually a "U"-shaped area arranged around the central area 11 and adjacent to the upper horizontal edges 101 and the upper side edges 102. Furthermore, the width of the edge area 12 accounts for 5% to 15% of the total width of the upper paper layer 10.

[0024] It can be understood that in this embodiment, the edge area 12 includes four areas adjacent to the upper horizontal edge 101 and the upper side edge 102 respectively. For the convenience of description, the edge area 12 located on the lower side of the central area 11 is called the first area, and the outer edge of the first area is called the first upper horizontal edge. The first area includes several first indentations 1200 arranged in rows. The first indentations 1200 include a tip 1201 with a pointing direction, and the pointing direction is toward the central area 11 or away from the central area 11.

[0025] More specifically, the first indentation 1200 includes a tip 1201 and a tail end 1202 facing away from the tip 1201, and a pair of side lines (1203, 1204) connecting the tip 1201 and the tail end 1202. It can be understood that the spacing between the pair of side lines (1203, 1204) gradually increases from the tip 1201 to the tail end 1202. At the same time, the pair of side lines (1203, 1204) intersect at the tip 1201 to form a vertex. The points with the largest corresponding distances on the pair of side lines 1203 are defined as endpoints. A line connects the endpoints on the pair of side lines 1203, and the line includes a midpoint 1205. Then, the pointing direction is the direction from the midpoint 1205 to the vertex. It can be understood that the first indentation 1200 includes a pointing line 1206, and the pointing line 1206 is the line between the midpoint 1205 and the vertex.

[0026] In this embodiment, the tail end 1202 also includes a tail line connecting a pair of end points. The tail line is an arc line, and makes the first indentation 1200 appear in a teardrop shape. It can be understood that in other embodiments, the first indentation 1200 can also appear in a comma shape.

[0027] It can be understood that the first area includes several rows of first indentations 1200, and the several rows of first indentations 1200 defined from the central area 11 to the first upper horizontal edge 101 are respectively the first row 121, the second row 122, the third row 123...the Nth row, then the lines connecting the midpoints 1205 of adjacent first indentations 1200 in the first row 121, the second row 122, the third row 123...the Nth row are parallel.

[0028] Furthermore, the spacing between adjacent rows is equal.

[0029] Furthermore, the pointing direction of the first indentations 1200 in the first row 121 is opposite to the pointing direction of the first indentations 1200 in other rows. In this embodiment, the pointing direction of the first indentations 1200 in the first row 121 is from the central area 11 to the first upper horizontal edge 101, while the pointing direction of the first indentations 1200 in other rows is from the first upper horizontal edge 101 to the central area 11.

[0030] At the same time, the pointing lines 1206 of any two first indentations 1200 are not collinear, that is, any two first indentations 1200 are staggered.

[0031] Furthermore, the length of the first indentation 1200 is 0.5mm to 3.0mm, wherein the length specifically refers to the distance between the vertex and the midpoint 1205 of the tail line. Preferably, the length of the first indentation 1200 is 1.0mm to 2.0mm. At the same time, the maximum width of the first indentation 1200 is 0.3mm to 1.5mm, and the maximum width is the distance between the endpoints of the edge line 1203. Preferably, the maximum width is 0.5mm to 1.0mm. In addition, the tail line curvature radius is 0.2mm to 1.0mm to form a smooth transition arc.

[0032] Furthermore, the depth of the first indentation 1200 is quantitatively matched with the paper layer. Preferably, the depth of the first indentation 1200 is 30% to 70% of the thickness of a single layer of paper to avoid penetration or invalid deformation. Preferably, the depth of the first indentation 1200 is 12 μm to 140 μm. In a specific embodiment, the depth of the first indentation 1200 is 20 μm to 100 μm.

[0033] Furthermore, the distance between the midpoints 1205 of adjacent first indentations 1200 is 1.2 to 2.0 times the indentation length, and the vertical distance between adjacent rows is 0.8 to 1.5 times the indentation width.

[0034] Furthermore, the dislocation distance is ≥ 0.3 times the indentation width.

[0035] Furthermore, the distribution density of the first indentations 1200 in the edge region 12 is 2 to 12 per cm² to form a density gradient with the underlying dot indentations 210 .

[0036] The lower paper layer 20 includes a second embossed pattern 21, and the second embossed pattern 21 includes a regular and continuous pattern composed of dot indentations 210. The distribution density of the dot indentations 210 on the lower paper layer 20 is greater than or equal to 300 / cm². Preferably, the distribution density of the dot indentations 210 on the lower paper layer 20 is greater than 330-540 / cm².

[0037] The point-shaped indentations 210 are specifically point-to-point embossing forms. The point-to-point embossing forms refer to that the lower paper layer 20 includes a third surface 203 and a fourth surface, and point-shaped indentations 210 are formed at positions corresponding to the third surface 203 and the fourth surface. The third surface 203 is the surface adjacent to the side of the upper paper layer 10, and the fourth surface is the surface facing away from the upper paper layer 10. Specifically, the point-to-point embossing form can be formed by a point-to-point pressing roller group, and the point-to-point pressing roller group includes a pair of juxtaposed axially parallel rollers, each of which is provided with a spherical protrusion, and during operation, each spherical protrusion remains relatively synchronized, thereby pressing out patterns on both the third surface 203 and the fourth surface. It can be understood that the spherical protrusions of the two rollers remain relative and synchronized during operation. It can be understood that when the point-to-point embossing form is adopted, the main goal is not to increase the bulk of the lower paper layer 20. When the third surface 203 is formed, the spherical protrusions are relatively synchronized. When ultra-high-density dot indentations 210 are formed, on the one hand, a water-holding space is formed between the third surface 203 and the upper paper layer 10. On the other hand, since the lower paper layer 20 is provided with ultra-high-density dot indentations 210, the lower paper layer 20 has a higher absorption rate in the corresponding area of ​​the central area 11, that is, when the central area 11 is used for wiping, the liquid is quickly absorbed through the upper paper layer 10 under the liquid absorption and traction action of the lower paper layer 20. On the third hand, the liquid can quickly diffuse between the third surface 203 and the upper paper layer 10 and can form an adhesive under the action of the surface tension of water so that the third surface 203 and the upper paper layer 10 remain in contact. The study further found that when ultra-high-density dot indentations, that is, an arrangement of dot indentations greater than or equal to 300 / cm², is adopted, the surface of the lower paper layer 20 is in the form of velvet and matches the skin texture, giving it a better touch. When conducting a TSA test of the feel, the score is usually greater than or equal to 4.0.

[0038] In addition, the study found that the use of directional indentations and high-density point indentations 210 in the lower layer can greatly reduce the edge delamination phenomenon. Specifically, the "U"-shaped water droplet-shaped indentations in the edge area 12 are arranged for directional drainage through the tip 1201. The outer circle indentation blocks the rapid invasion of external liquids, such as when wiping sweat, the edge contacts moisture, reducing the edge penetration caused by the capillary effect. The inner circle indentation guides the penetrated liquid to the central area 11 to avoid liquid retention at the edge causing delamination. In addition, it can form a balance between thickness and comfort: the three-dimensional support of the discontinuous indentation, the staggered water droplet-shaped indentation forms a micro-airbag structure, and the undeformed area between the indentations maintains the original fluffiness of the paper. When wiping, only the indentation tip 1201 contacts the skin, and the softness is improved by more than 20%.

[0039] Furthermore, the dot-shaped indentations 210 are rectangular in shape, and the dot-shaped indentations 210 are arranged in an array on the third surface 203 .

[0040] Furthermore, the lower paper layer 20 includes a lower transverse edge 201 and a lower side edge 202, wherein the lower transverse edge 201 is arranged corresponding to the upper transverse edge 101, and the lower side edge 202 is arranged corresponding to the upper side edge 102. The point indentations 210 are arranged in rows, and the connecting line between adjacent point indentations 210 arranged in rows is defined as a first virtual straight line 211. The first virtual straight line 211 is inclined to the lower transverse edge 201, and the angle between the first virtual straight line 211 and the lower transverse edge 201 is 3 to 15 degrees. In this case, on the one hand, the arrangement of the point indentations 210 is staggered with the MD direction and the CD direction, thereby improving the liquid absorption and traction effect of the lower paper layer 20, accelerating the liquid to pass through the upper paper layer 10, and at the same time, the point indentations 210 form a stable water-holding space.

[0041] Furthermore, the second embossed pattern 21 is fully spread on the third surface 203 , and the fully spread means that the second embossed pattern 21 extends to the lower horizontal edge 201 and the lower side edge 202 .

[0042] Furthermore, the depth of the dot indentation 210 is 20-50% of the thickness of a single layer of paper.

[0043] Furthermore, the upper paper layer 10 includes an isolation area 13 located between the central area 11 and the edge area 12, and a third embossing pattern 130 is arranged in the isolation area 13. The third embossing pattern 130 includes a pair of first linear embossings 131 and a pair of second linear embossings 132, wherein the extension direction of the first linear embossing 131 is parallel to the upper horizontal edge 101, and the extension direction of the second linear embossing 132 is parallel to the upper side edge 102. The pair of first linear embossings 131 are arranged in parallel and spaced apart, and the pair of second linear embossings 132 are arranged in parallel and spaced apart. At the same time, the adjacent first linear embossings 131 and the second linear embossings 132 are connected end to end, so that the second embossing pattern 21 is arranged around the central area 11 and isolates the central area 11 from the edge area 12, further reducing the diffusion of liquid in the central area 11 to the edge area 12, thereby further reducing the edge delamination phenomenon.

[0044] Furthermore, both ends of the first linear embossing 131 extend to the first embossing pattern 120 , and both ends of the second linear embossing 132 extend to the first embossing pattern 120 .

[0045] Furthermore, the first linear embossing 131 and the second linear embossing 132 may be formed by a plurality of indentations arranged adjacent to each other.

[0046] In addition, the upper paper layer 10 and the lower paper layer 20 are combined by the first embossed pattern 120 . In this case, the edge region 12 of the fourth surface also presents the first embossed pattern 120 .

[0047] The present invention will be further described below through specific examples. Example

[0048] The main body has four layers: Among them, the upper paper layer 10: 12g / ㎡ single-layer paper, 2 layers; the lower paper layer 20: 12g / ㎡ single-layer paper, 2 layers; each single-layer paper is 30% NBKP + 70% LBKP.

[0049] First embossing pattern: four rows of dot indentations, where the first indentations in the first row point from the center to the edge, and the first indentations in the second, third, and fourth rows all point from the edge to the center. The first indentation size is: length: 1.0mm, and the maximum width is 0.8mm. The distribution density of the first indentations in the edge area is 4 / cm².

[0050] Second embossing pattern: The distribution density of the dot indentations on the lower paper layer is 390 / cm², and the angle between the first virtual straight line and the horizontal edge of the lower layer is 10°. Example

[0051] In Example 2, the second embossing pattern is as follows: the distribution density of the dot-shaped indentations on the lower paper layer is 300 / cm², and the rest is the same as in Example 1.

[0052] Comparative Example 1: The main body has four layers in total, and each layer of single-layer paper is the same as the single-layer paper of the upper paper layer in Example 1, and is arranged in the form shown in CN201453095U.

[0053] Comparative Example 2: The main body has four layers in total, and each layer of single-layer paper is the same as the single-layer paper of the upper paper layer in Example 1, and is arranged in the form shown in CN106460344A.

[0054] The specific test data are as follows: unit Example 1 Example 2 Comparative Example 1 Comparative Example 2 Test Method Basis weight (4-sheet) g / m² 48.1 48.0 48.0 48.2 GB / T 451.2-2002 Thickness (4-sheet) μm 365 372 322 394 GB / T 451.3-2002 Water absorption g / m² 185 182 160 175 GB / T 461.1-2002 Absorption rate s 1.2 1.4 2.5 1.8 Water droplet complete penetration time (0.1mL water droplet) MD tensile strength N / m 420 433 450 400 GB / T 12914-2018 Edge delamination rate % <5 <5 25 15 Percentage of edge delamination area after simulated wiping (10 tests) Feel (TSA score) point 4.5 4.0 3.0 3.8 (1 to 5), 5 = best From the above test data: 1. The thickness of Examples 1 and 2, through the staggered arrangement of teardrop-shaped indentations and the dot embossing of the bottom layer, is better than that of the traditional edge embossing only (Comparative Example 1), but lower than that of the partial embossing of the upper layer and the full embossing of the bottom layer in Comparative Example 2, achieving a balance between comfort and thickness.

[0055] 2. In terms of water absorption, the water absorption of Examples 1 and 2 is increased by more than 15% due to the capillary network formed by the high-density point indentations in the lower layer. At the same time, the absorption rate of Example 1: The rapid absorption of 1.2 seconds is due to the synergistic effect of the liquid quickly diffusing from the upper center area to the lower layer.

[0056] 3. Edge delamination rate: In Example 1 and Example 2, the edge liquid is directed to the interior through directional indentation drainage (with the tip facing the center area), and the delamination rate is reduced to below 5%.

[0057] IV. MD tensile strength: Although Example 1 is slightly lower than Comparative Example 1 (conventional embossing), the strength loss is compensated by the linear embossing in the isolation area (the third embossing pattern).

[0058] 5. Hand feel: In Example 1, the hand feel reaches 4.5 points. When 300 embossing patterns / cm² are used, the hand feel is reduced to 4.0.

[0059] That is, the present invention significantly improves the water absorption rate, reduces edge delamination, and optimizes wiping comfort while maintaining thickness and strength through a composite embossing design of upper layer indentation and lower layer ultra-high density dot matrix or further combined with directional indentation, and its comprehensive performance is significantly better than traditional solutions.

[0060] The above description is only an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An embossed household paper, comprising a body, characterized in that: The body includes an upper paper layer and a lower paper layer, the upper paper layer includes a central area and an edge area surrounding the central area, wherein a first embossing pattern is provided in the edge area, the first embossing pattern includes a plurality of first indentations arranged in rows, and the second embossing pattern includes a regular and continuous pattern composed of dot indentations, and the distribution density of the dot indentations on the lower paper layer is greater than or equal to 300 / cm².

2. The embossed household paper according to claim 1, wherein: No embossing pattern is provided in the central area, and the first indentation includes a tip having a pointing direction, and the pointing direction is toward the central area or away from the central area.

3. The embossed household paper according to claim 2, wherein: The first embossing pattern includes several rows of first indentations, and the rows from the center area to the outside are defined as the first row, the second row, the third row...the Nth row, and the lines connecting the midpoints of adjacent first indentations in the first row, the second row, the third row...the Nth row are parallel.

4. The embossed household paper according to claim 3, wherein: The first indentations in the first row point in a direction opposite to the directions of the first indentations in other rows.

5. The embossed household paper according to claim 4, characterized in that: The first indentations in the first row point from the center area to the outside, while the first indentations in the other rows point from the outside to the center area.

6. The embossed household paper according to claim 5, characterized in that: The first indentation includes a tip and a tail facing away from the tip, and a pair of side lines connecting the tip and the tail, wherein the spacing between the pair of side lines gradually increases from the tip to the tail.

7. The embossed household paper according to claim 6, wherein: The pair of edge lines intersect at the tip to form a vertex, and the points with the largest corresponding distance on the pair of edge lines are defined as endpoints. A connecting line connects the endpoints on the pair of edge lines, and the connecting line includes a midpoint. The first indentation includes a pointing line, and the pointing line is the connecting line between the midpoint and the vertex. The pointing lines of any two first indentations are not collinear.

8. The embossed household paper according to claim 7, wherein: The lower paper layer includes a third surface adjacent to the upper paper layer, and the second embossed pattern is fully spread on the third surface.

9. The embossed household paper according to claim 8, wherein: The dot-shaped indentations are point-to-point embossing forms.

10. The embossed household paper according to claim 9, wherein: The lower paper layer includes a lower horizontal edge and a lower side edge. The dot indentations are arranged in rows. The line connecting adjacent dot indentations arranged in rows is defined as a first virtual straight line. The first virtual straight line is inclined to the lower horizontal edge, and the angle between the first virtual straight line and the lower horizontal edge is 3 to 15 degrees.

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