JP6454069B2 - Toilet roll and toilet paper embossing method - Google Patents

Description

  The present invention comprises a plurality of toilet rolls in which a plurality of strip-like toilet paper base papers are laminated and integrated by embossing applied along a continuous direction at the edge thereof, and a plurality of toilet rolls wound in a roll shape The present invention relates to an embossing integration method for preventing ply peeling between toilet paper bases in a plurality of ply toilet papers in which a plurality of strip-like toilet paper bases are laminated and integrated.

  Toilet rolls made by rolling a belt of toilet paper into a roll are well known. In such toilet rolls, the toilet paper is a multi-ply one in which a plurality of toilet paper base papers are laminated and integrated, and a toilet roll. There is a single paper that keeps the original paper. Among these, in the case of a plurality of plies, ply peeling of each laminated base paper is embossed (also called edge embossing, contact embossing, etc.). This embossing integration is hereinafter referred to as edge embossing in the present invention and specification. ) To prevent it.

  This edge embossing is made of a metal that receives the edge embossing roll, and a relatively narrow edge embossing roll in which a plurality of unit convex embossings are provided in a predetermined embossing pattern at the edge portion of the overlapped base paper. A predetermined embossing pattern is embossed between the rubber receiving rolls.

  In addition, edge embossing is embossed in a geometric or random pattern over a wide range of paper to improve the design, smoothness and bulkiness of toilet paper (such embossing is macro embossing, micro embossing, It is also called main embossing, design embossing, etc. In the present invention and specification, an effect different from that of main embossing is required.

  That is, (1) edge embossing is performed by a relatively narrow edge embossing roll, and at the time of application, the edge embossing roll may jump or rattle due to vibration. , Also known as bouncing). In addition, the edge embossing roll may come into contact with the paper surface without being in contact with the paper surface (this contact with the paper surface with such an inclination is also referred to as a single contact in the industry). And when bounced or per piece occurs, there is a part where embossing is not applied, or embossing is applied due to excessive pressurization and there is a hole in the part that becomes an embossed recess, resulting in a poor-looking product. . Therefore, the edge embossing is required to be an embossing pattern in which this bounce is prevented as much as possible. (2) Since the edge embossing is applied at a relatively high pressure to prevent ply peeling with a narrow edge embossing roll, the edge embossing is required to have a pattern considering the wearability of the edge embossing roll. (3) Furthermore, in the case of a roll product such as a toilet roll, the portion to which edge embossing has been imparted rises into a rib shape, which may result in a poor-looking product, so that such a rib shape is prevented. It is required to be a pattern to be performed. Thus, edge embossing is required to have the effects according to the above (1) to (3).

  On the other hand, as described above, the toilet roll has been embossed to improve the design and bulkiness. In particular, in a toilet roll having such an embossing, the edge embossing is required to firmly crimp each base paper while maintaining the design and bulky effects of the embossing. In this case, in particular, the edge embossing should be made inconspicuous compared to the main embossing given for bulkiness and design, even though each base paper is firmly applied to crimp. There is.

JP 2010-173267 A Japanese Patent No. 4627892 Japanese Patent No. 4450421 Japanese Patent No. 5331530 Patent No. 5005085

  Therefore, the main problems of the present invention are the prevention of ply peeling of multi-ply toilet paper, the prevention of bunging and per piece, the prevention of formation of rib-like portions when rolled, and the wear resistance of edge embossing rolls Another object of the present invention is to provide a toilet roll to which edge embossing is provided that is excellent in properties and also has excellent harmony with main embossing for design and the like, and a method for applying the edge embossing.

  The present invention that has solved the above problems and the effects thereof are as follows.

<Invention of Claim 1>
A toilet roll in which a plurality of strip-shaped toilet paper base papers are laminated and integrated by embossing applied in a continuous direction and rolled into a roll shape.
The toilet roll characterized in that the embossing is an edge embossing pattern that satisfies the following requirements (A) to (C).
(A) A rectangular unit concave emboss having a side parallel to the width direction orthogonal to the continuous direction of the toilet paper base, and the continuous direction and the width direction side being 0.4 to 0.7 mm is in the continuous direction. The unit concave embossed rows arranged at intervals of 4.50 to 5.50 mm are edge embossed patterns arranged in three rows at the left and right center in the width direction .
(B) A triplet pattern that is arranged with an angle of 40 to 50 ° with respect to the width direction of the toilet paper base with three unit concave embosses in each of the left column, the center column, and the right column. Edge emboss pattern that appears repeatedly in the continuous direction of the base paper.
(C) The side parallel to the width direction orthogonal to the continuous direction of the toilet paper base paper of the unit concave emboss in each of the left column, the central column, and the right column does not match and is adjacent in the continuous direction of the central column It is an edge emboss pattern arranged so that the unit concave embosses in the right row and the left row located on the left and right between the unit concave embosses overlap each other at the position in the width direction.

<Invention of Claim 2>
The toilet roll according to claim 1, wherein a depth of the unit concave embossing is 0.1 to 0.70 mm.

<Invention of Claim 3>
Aside from edge embossing, the toilet paper has a concave portion with a bottom surface of a square of 0.5 to 1.3 × 0.5 to 1.3 mm and a center interval of 4.5 to 5.5 mm, on the entire paper surface. The toilet roll according to claim 1, further comprising main embosses arranged in a grid at an arrangement angle of 40 to 50 ° with respect to the width direction.

<Invention of Claim 4>
The toilet roll according to claim 3, wherein the unit concave emboss is disposed so as to be located in a bottom line of the main emboss or a valley line connecting the bottom surfaces.

<Invention of Claim 5>
Using a pair of edge embossing means composed of a convex embossing roll and a receiving roll that receives the convex embossing roll, a toilet paper embossing integration method for laminating and integrating a plurality of toilet paper base papers, A method for embossing toilet paper, wherein the edge emboss pattern to be applied satisfies the following requirements (A) to (C).
(A) A rectangular unit concave emboss having a side parallel to the width direction orthogonal to the continuous direction of the toilet paper base, and the continuous direction and the width direction side being 0.4 to 0.7 mm is in the continuous direction. The unit concave embossed rows arranged at intervals of 4.50 to 5.50 mm are edge embossed patterns arranged in three rows at the left and right center in the width direction .
(B) A triplet pattern that is arranged with an angle of 40 to 50 ° with respect to the width direction of the toilet paper base with three unit concave embosses in each of the left column, the center column, and the right column. Edge emboss pattern that appears repeatedly in the continuous direction of the base paper.
(C) The side parallel to the width direction orthogonal to the continuous direction of the toilet paper base paper of the unit concave emboss in each of the left column, the central column, and the right column does not match and is adjacent in the continuous direction of the central column It is an edge emboss pattern which is a pattern arranged so that the unit concave embosses in the right and left columns located on the left and right between the unit concave embosses overlap each other at the position in the width direction.

<Invention of Claim 6>
The method for embossing toilet paper according to claim 5, wherein the height of the unit convex embossing for forming the unit concave embossing in the convex embossing roll is 0.40 to 0.70 mm.

  According to the present invention described above, the prevention of ply peeling of toilet paper of multiple plies, the prevention of bounce and piece contact, the prevention of the formation of rib-like parts when rolled, the wear resistance of edge embossing rolls In addition, a toilet roll to which edge embossing that is excellent in harmony with main embossing for design and the like is imparted and a method for imparting the edge embossing are provided.

It is a perspective view of the toilet roll which concerns on this invention. It is a figure for demonstrating the example of the edge embossing pattern which concerns on this invention. It is a figure for demonstrating the other example of the edge embossing pattern which concerns on this invention. It is a figure for demonstrating the provision aspect of the edge embossing which concerns on this invention. It is a figure for demonstrating the convex embossing roll which concerns on this invention. It is a top view of the toilet paper to which the main embossing concerning the present invention was given. It is a figure which shows the cross section of the toilet paper to which the main embossing which concerns on this invention was provided, and is a figure which shows the AA cross section in FIG. 6, a BB cross section, and CC cross section in particular. It is a figure for demonstrating the example of the pattern of the conventional edge embossing. It is a figure for demonstrating the example of the pattern of the edge embossing which concerns on the comparative example 1. FIG. It is a figure for demonstrating the testing method of ply peeling prevention property.

  Next, an embodiment of the present invention will be described in detail with reference to FIGS. In the explanation, the method of integrating the embossing of toilet paper will be explained mainly in the explanation of the toilet roll.

A toilet roll 1 according to this embodiment is shown in FIG. This toilet roll 1 is a multi-ply in which a plurality of strip-shaped toilet paper bases 11 and 11 are laminated and integrated by embossing 2 (hereinafter also referred to as edge embossing) 2 applied along the continuous direction at the edge thereof. The toilet paper 10 is wound around the paper tube 3 in a roll shape. In addition, as a position where edge embossing is distribute | arranged, although it is preferable to be in each edge part of toilet paper, More specifically, the edge part of the range within 50 mm from both edges, It is not necessarily limited to this position. Moreover, you may distribute | arrange only to the one side edge part. The number of plies is preferably 2 to 3 plies, and more preferably 2 plies. In addition, it is desirable that the toilet paper 10 has a thickness of 100 to 350 μm, and a ply per ply of 11.0 to 25.0 g / m ² . When the number is within the range of the number of plies, the paper thickness, and the rice tsubo, the softness and water absorption during use can be ensured, and in particular, the effect of the edge embossing 2 having the configuration according to the present invention described later becomes more remarkable.

  In addition, the tsubo according to this embodiment is based on the tsubo tsubo measurement method of JIS P 8124 (1998), and the paper thickness is sufficiently adjusted under the conditions of JIS P 8111 (1998). The average value measured five times using a dial thickness gauge (thickness measuring instrument) “PEACOCK G type” (manufactured by Ozaki Seisakusho) under the same conditions.

  The size or the like of the toilet roll 1 is not limited, but generally, the width L1 is 100 to 120 mm, the diameter L2 is 100 to 120 mm, the winding length (the total length of the toilet paper) is 18 to 70 m, and the paper tube inner diameter L3 Is 35 to 50 mm, and the toilet roll 1 according to the present invention can be in this range.

On the other hand, the edge embossing 2 applied to the toilet paper 10 according to the present embodiment has the following characteristic embossing pattern as shown in the reference form in FIG. 2 and the embodiment in FIG. That is, the edge emboss 2 first has (A) a side E1 parallel to the width direction orthogonal to the continuous direction of the toilet paper base 11, and the length L4 of the sides E1 and E2 in the continuous direction and the width direction. L5 is the unit concave embossments column 20L arranged in units concave embossments 20 interval L6 of 4.50~5.50mm in the continuous direction of the rectangle is 0.4-0.7 mm, 20C, 20R is centered horizontally The pattern is arranged in three rows. The pattern of the edge emboss 2 is a quadrangle whose unit concave emboss 20 has a shape and a side length of 0.4 to 0.7 mm. small. Further, the interval L6 in the continuous direction of the unit concave emboss 20 is 4.50 to 5.50 mm, which is substantially the same as that given to the conventional product. The unit concave embossments columns 20L, 20R, 20C, as the width of three rows arranged pattern next to the left-right center in the range L7 in the width direction of 3.00～6.00Mm unit concave embossments 20 are arranged in It tends to be the same or wider than that given to conventional products . That is, the pattern of the edge embossing 2 according to the present embodiment is such that small unit concave embosses 20 are dispersed and arranged as compared with the conventional edge embossing pattern, so that ply peeling is prevented. Even if it is firmly and strongly applied, it is difficult to stand out. In particular, even if it is given together with embossing that gives designability, the designability of the main embossing that gives that designability is not lowered. Further, in the case where the roll is rolled like the toilet roll 1, the portion to which the edge emboss 2 is applied does not rise in a rib shape.

  Furthermore, the pattern of the edge embossing 2 according to the present embodiment also has an advantage at the time of application. That is, as understood from FIGS. 4 and 5, the edge embossing 2 is in a state where the toilet paper base papers 11 and 11 are overlapped (in the figure, the sheet in the overlapped state is indicated by reference numeral 11A). A portion of the toilet paper, which is an appropriate position at the time of product, is provided with a relatively narrow convex embossing roll 5 in which a plurality of unit convex embosses 20x are provided in the pattern of the edge embossing 2 to be transferred, and the convexity. It is applied by embossing means 56 for embossing between the metal or rubber receiving roll 6 that receives the embossing roll 5. The pattern of the edge embossing 2 of the present embodiment is a pattern in which the unit concave embossing rows 20L, 20C, and 20R are arranged in three rows at the left and right center within the range of 3.00 to 6.00 mm in the width direction. The arrangement pattern of the unit convex embossing 20x of the convex embossing roll 5 to which the pattern is applied is also a corresponding arrangement pattern. That is, as shown in FIG. 5, the unit embossed rows 20 l, 20 c, and 20 r are arranged in the width direction so that the embossed pattern in the convex embossed roll 5 according to this embodiment corresponds to the pattern of the edge embossed 2. It is a pattern in which three rows at the left and right center are arranged within a range of 0.00 to 6.00 mm, and unit convex emboss rows 20l and 20r are arranged on the left and right with respect to the center row 20c. When the unit convex emboss rows 20l and 20r are also arranged on the left and right sides of the central row 20c in this way, the unit can stably contact with the paper surface, and in particular, the piece with which the convex embossing roll 5 is inclined with respect to the paper surface. The winning phenomenon is less likely to occur. Moreover, the pattern of the edge embossing 2 which concerns on this embodiment becomes a square in which the unit concave embossing 20 has the edge | side E1 parallel to the width direction orthogonal to the continuous direction of the toilet paper base paper 11 and 11. FIG. Therefore, the unit convex emboss 20x of the convex embossing roll 5 becomes the unit convex embossing 20x having a side e1 parallel to the axial direction perpendicular to the rotation direction of the convex embossing roll 5. In the case of the unit convex emboss 20x, when the unit convex emboss 20x is pressed against the paper surface, the unit convex emboss 20x always comes into contact with the paper surface from the side e1. The unit convex emboss 20x is a pattern that touches the vertex of a rhombus or triangle or a pattern that has a circular top surface, in other words, a unit concave emboss of the edge emboss has a rhombus or triangle that has a vertex in the continuous direction of the toilet paper. If it is a pattern or a circular pattern, when the unit convex emboss starts to contact the paper surface, an excessive force is easily applied to the vertex or one point of the circle, and wear of the unit convex emboss of the convex emboss roll 5 occurs. It becomes easy. In the pattern of the edge embossing 2 according to the present embodiment, the unit convex emboss 20x always comes into contact with the paper surface from the side e1 at the time of application, so that an excessive force is not applied to one point, and the wear is reduced.

  On the other hand, the pattern of the edge embossing 2 according to the present embodiment is the pattern of (A) above, and (B) the unit concave embossing 20, 20, 20 in each of the left column 20L, the central column 20C, and the right column 20R. The triple pattern 20G arranged at an angle of 40 to 50 ° with respect to the width direction of the toilet paper base paper 11 and 11 is a pattern that repeatedly appears in the continuous direction of the toilet paper base paper 11 and 11. (In FIG. 2 and FIG. 3, the angle between the triplet pattern 20G and the width direction is indicated by symbol ∠A). Because of this pattern, the pattern of the edge embossing 2 of the present embodiment is pushed by the convex embossing roll 5 in a state where toilet paper bases 11 and 11 to be integrated are overlapped, particularly at the time of embossing (during application). However, it is difficult for the base papers 11 and 11 to be displaced in the width direction, and it is easy for the wrinkles to escape, so that the solid edge embossing 2 can be provided. That is, the pattern of the edge embossing 2 according to the present embodiment has the configuration (B), and thus, even in a mode in which small squares as in (A) are dispersedly arranged, ply peeling is performed without wrinkles. It can be a solid edge embossing that can be prevented.

  Further, the pattern of the edge embossing 2 according to the present embodiment is the pattern of the above (A) and (B), and (C) the unit concave embossing 20 in each of the left column 20L, the central column 20C, and the right column 20R. The side E1 parallel to the width direction orthogonal to the continuous direction of the toilet paper base paper 11 is a pattern that does not match. Since the side E1 of the three unit concave embosses 20 does not match, that is, the side e1 of the unit convex emboss 20x in the convex embossing roll 5 does not match in the width direction, when the edge embossing 2 is pressed (during application) The wrinkles are less likely to occur. The (C) configuration requires that the sides of the unit concave emboss 20 of the triplet pattern 20G do not match, and it is not denied that the sides of the two unit concave embosses match.

In the pattern of the edge embossing 2 according to the present embodiment, as particularly shown in FIG. 3, the right row 20R and the left row 20L are located on the left and right sides between adjacent unit concave embosses in the continuous direction of the center row 20C. The unit concave embosses 20 and 20 are arranged so as to overlap at positions in the width direction (in the figure, they are arranged so as to overlap by the symbol P). In this pattern, when the edge embossing 2 is embossed by the convex embossing roll 5, the unit convex embossing 20x of the left row 20L is completed before the embossing by the unit convex embossing 20x of the right row 20R is completed and leaves the paper surface. The embossing by will be started. Therefore, in the pattern of this edge embossing 2, the convex embossing roll 5 does not rattle against the paper surface at the time of application, so that the bounce and the piece contact are more effectively prevented and the wear of the convex embossing roll 5 is suppressed.

  Here, it is desirable that the emboss depth of the unit concave emboss 20 in the edge emboss 2 according to the present embodiment is 0.1 to 0.7 mm. In terms of embossing conditions, it is desirable that the emboss height of the unit convex emboss 20x is 0.4 to 0.7 mm. If it is this range, the edge embossing 2 firm enough to prevent ply peeling can be given, and the toilet paper 10 is not perforated or the edge embossing 2 is not excessively conspicuous. In addition, the effect of setting this embossing depth becomes especially remarkable in the rice tsubo and thickness of the above-mentioned toilet paper.

  On the other hand, the pattern of the edge embossing 2 according to the present embodiment has a further effect in combination with the main embossing of an appropriate pattern performed for imparting designability, bulkiness and softness. Particularly preferably, the pattern of edge embossing according to the present embodiment is a quadrangle having a bottom surface of 0.5 to 1.3 × 0.5 to 1.3 mm, as shown in FIGS. The recesses 50, 50... Having a center interval L8 of 4.5 to 5.5 mm are arranged in a lattice shape with an array angle of 40 to 50 ° with respect to the width direction (the array angle is indicated by reference sign B in FIG. 6). In addition to the effect of the edge emboss 2 pattern described above, the main emboss array pattern and the edge emboss 2 array pattern harmonize with each other, and in particular the edge emboss 2 Becomes inconspicuous and has excellent design properties, and the effect that the rib-shaped portion is difficult to be formed in a roll shape becomes remarkable.

  In particular, as shown in the drawing, the main embossing is preferably continuous from each vertex of the rectangular bottom surface of a certain concave portion 50 to a vertex of the rectangular bottom surface of the adjacent concave portion 50 so as to continue at a valley line 51. In this main embossing pattern, although not shown in FIG. 6, in particular, the triple pattern 20G of the unit concave emboss 20 in each of the left row 20L, the center row 20C, and the right row 20R in the edge embossing 2 and the toilet paper The angle ∠A with respect to the width direction of the base paper 11 and the arrangement angle of the main emboss are made to coincide with each other, and the unit concave emboss 20 is arranged so as to be positioned on the valley line 51 that connects the bottom surface of the concave portion 50 of the main emboss. As a result, the main embossing and the edge embossing can be visually recognized in harmony, and the pattern in which small squares are dispersed at the bottom surface of the concave portion 50 of the main embossing and the concave portion of the paper surface as the valley line 51. The edge embossing 2 is arranged so that the presence of the edge embossing 2 is particularly inconspicuous. It becomes difficult to inhibit the Takumi property.

  Here, the toilet roll according to the present embodiment can be manufactured by a known manufacturing procedure. For example, a process of manufacturing a long paper tube and a wide toilet paper with respect to the long paper tube It is a log manufacturing process that uses and manufactures a log, a cutting process that cuts the log into individual toilet rolls, and a procedure that manufactures in order. The log is a general term in the industry, and is an intermediate product that has the same diameter as the toilet roll that is the final product and has a width corresponding to a plurality of final products.

And the toilet roll which concerns on this embodiment is the said log manufacturing process, as shown in FIG. 4, from the several raw fabric rolls 80 and 80 which wound beforehand the wide toilet paper base paper corresponding to the width | variety of the log 90, as shown in FIG. The toilet paper base papers 11 and 11 are fed out, overlapped, and passed through the edge embossing means 56 composed of the convex embossing roll 5 and the receiving roll 6 for receiving the paper tube, Edge embossing can be applied to integrate the layers. When main embossing is given, although not shown in the figure, main embossing is given to each toilet paper base fed from each raw roll, and then the toilet paper bases given main embossing are overlapped. After that, edge embossing may be applied by edge embossing means, or after each toilet paper roll fed from each raw roll is superposed, main embossing is applied, and then edge embossing means is applied. Edge embossing may be applied. Furthermore, it is also possible to feed the toilet paper base paper in a laminated state from the raw roll rolled up in a state where a plurality of toilet paper base papers are laminated in advance, and apply edge embossing by the edge embossing means.
Note that the embossing pressure of the edge embossing or main embossing may be appropriately adjusted depending on the thickness or density of the paper.

  Regarding the edge embossing as an example according to the present invention, and the edge embossing according to the conventional example and the comparative example, the wearability of the convex embossing roll, the appearance design, the ply peelability, and the prevention of the formation of the rib-like portion at the time of roll formation The results are shown in Table 1 below. Reference Example 1 and Reference Example 2 in the table are the edge embossing patterns shown in FIG. 2, and Example 1 is the edge embossing pattern shown in FIG. The dimensions and the like of the unit concave emboss are as shown in Table 1. Further, the pattern of edge embossing according to the conventional example is shown in FIG. 8, wherein unit concave embossed rows in which unit concave embossed 120 are separated by a distance L6 ′ of 5.4 mm in the continuous direction are two rows in the width direction of the toilet paper base, It was assumed to be disposed within a range L7 ′ of 3.8 mm. The pattern of edge embossing according to the comparative example is shown in FIG. 9. The unit recessed embossed row in which circular unit recessed embosses 120 having a diameter of 0.3 mm are spaced apart by a spacing L6 ″ of 4.02 mm in the continuous direction is the width of the toilet paper base paper. It was assumed to be arranged in a range L7 ″ of five rows 3.3 mm in the direction. The dimensions and the like of the unit concave emboss in each example are shown in Table 1.

The toilet paper used for embossing has a two-ply structure in which two toilet paper base sheets having a basis weight of 16.5 g / m ² are stacked, and the thickness is 210 μm (two plies). The toilet paper was formed with the main embossing shown in FIGS. 6 and 7. The main embossing was a quadrilateral with a bottom of 1.2 × 1.2 mm, and the recesses with a center interval of 5.0 mm were arranged at an angle of 45 ° with respect to the width direction.

  In addition, with respect to the visual design properties, whether or not the edge embossing was conspicuous as compared with the conventional example was visually confirmed on the basis of the conventional example, and the inconspicuous one was evaluated as ◯.

  Concerning the wear properties of the convex embossing roll, confirm the wear of the convex embossing roll, x for the conventional example and below, ○ for the same as the conventional example, and ◎ for the wear less than the conventional example. evaluated.

  For prevention of ply peeling, as shown in (1) front view and (2) side view of Fig. 10, prepare a sample that is 20mm in width direction and 240mm in continuous direction so as to include edge embossing of toilet paper The sample was peeled 80 mm from one end in the continuous direction, the separation end 25 mm was fixed to each chuck of the tensile tester and set, and one chuck was pulled 50 mm at a speed of 100 mm / min. The ply peel strength was measured. If the measured value was in the range of 4.5 to 5.5 cN, it was rated as “good”.

  When forming rolls, the rib-shaped portion is prevented from forming edge embossing when the toilet paper is rolled on a paper tube with a diameter of 42.8 mmφ and a width of 114 mm, rolled 30 m, rolled 20 m, and rolled 10 m. The height of the shape was confirmed. As a specific confirmation method, each roll was viewed from the end surface, and the height of the edge embossing portion on the outer surface side was measured with reference to the center line of the unevenness of the main emboss.

  As understood from the results in Table 1, the reference example and Example 1 of the present invention are less noticeable in the presence of edge embossing than the conventional example, and further, the wear of the convex embossing roll, the ply peeling of the toilet paper As for the prevention property, the result was equal to or better than the conventional example. About the comparative example, since small unit concave embossing is dispersed, good results are obtained for ply peeling and appearance design, but the wearability of the convex embossing roll is inferior to the conventional example. became.

  In addition, with respect to the formation prevention of the rib-like portion at the time of roll formation, the edge embossing portion rises by 2.0 mm when the conventional example rolls 30 m, and the edge embossing portion is about 1.3 mm even in the state of 10 m winding. It was confirmed that a rib-like portion was formed due to swelling from the portion. On the other hand, in the reference example and Example 1, it was confirmed that in any of the 10 to 30 m windings, only 0.3 mm or less was raised from the other portions and the rib-like portions were hardly formed.

  From this, by making the pattern of edge embossing according to the present invention, it has excellent visual design, has sufficient ply peeling prevention properties, and further, wear characteristics of the convex embossing roll, rib-like portion at the time of roll formation It was also shown that the formation prevention property was good.

DESCRIPTION OF SYMBOLS 1 ... Toilet roll, 2 ... Edge embossing (embossing), 3 ... Paper tube, 10 ... Toilet paper, 11 ... Toilet paper base, L1 ... Toilet roll width, L2 ... Toilet roll diameter, L3 ... Paper tube inner diameter, E1: Side parallel to the width direction orthogonal to the continuous direction of the toilet paper base paper of unit concave emboss, E2: Side along the continuous direction of the toilet paper base paper of unit concave emboss, L4 ... Continuous direction of the toilet paper base paper of unit concave emboss The length of the side parallel to the width direction perpendicular to L, L5... The length of the side of the unit concave embossed toilet paper along the continuous direction, L6... The interval between the unit concave embosses in the unit concave emboss row, and L7. Range in the width direction of the row, 20 ... unit concave emboss row, 20L ... unit concave emboss row (left row), 20C ... unit concave emboss row ( (Center row), 20R ... unit concave emboss row (right row), 20x ... unit convex embossing, 5 ... convex embossing roll, 6 ... receiving roll, 56 ... embossing means, 20l ... unit convex embossing row (left row), 20c ... Unit convex emboss row (center row), 20r ... Unit convex emboss row (right row), e1 ... Side parallel to the axial direction perpendicular to the rotation direction of the convex emboss roll of the unit convex emboss, 20G ... Triplet Pattern, ∠A ... Triangle pattern and toilet paper base in width direction, ∠B ... Main embossed recess in width direction, 50 ... Main embossed recess, 51 ... Valley between main embossed recesses, L8 ... Center embossed center spacing, 80 ... raw roll, 90 ... log.

Claims (6)

A toilet roll in which a plurality of strip-shaped toilet paper base papers are laminated and integrated by embossing applied in a continuous direction and rolled into a roll shape.
The toilet roll characterized in that the embossing is an edge embossing pattern that satisfies the following requirements (A) to (C).
(A) A rectangular unit concave emboss having a side parallel to the width direction orthogonal to the continuous direction of the toilet paper base, and the continuous direction and the width direction side being 0.4 to 0.7 mm is in the continuous direction. The unit concave embossed rows arranged at intervals of 4.50 to 5.50 mm are edge embossed patterns arranged in three rows at the left and right center in the width direction .
(B) A triplet pattern that is arranged with an angle of 40 to 50 ° with respect to the width direction of the toilet paper base with three unit concave embosses in each of the left column, the center column, and the right column. Edge emboss pattern that appears repeatedly in the continuous direction of the base paper.
(C) The side parallel to the width direction orthogonal to the continuous direction of the toilet paper base paper of the unit concave emboss in each of the left column, the central column, and the right column does not match and is adjacent in the continuous direction of the central column It is an edge emboss pattern arranged so that the unit concave embosses in the right row and the left row located on the left and right between the unit concave embosses overlap each other at the position in the width direction.   The toilet roll according to claim 1, wherein a depth of the unit concave embossing is 0.1 to 0.70 mm.   Aside from edge embossing, the toilet paper has a concave portion with a bottom surface of a square of 0.5 to 1.3 × 0.5 to 1.3 mm and a center interval of 4.5 to 5.5 mm, on the entire paper surface. The toilet roll according to claim 1, further comprising main embosses arranged in a grid at an arrangement angle of 40 to 50 ° with respect to the width direction.   The toilet roll according to claim 3, wherein the unit concave emboss is arranged so as to be located in a concave line of the main emboss or between valleys. Using a pair of edge embossing means composed of a convex embossing roll and a receiving roll that receives the convex embossing roll, a toilet paper embossing integration method for laminating and integrating a plurality of toilet paper base papers, A method for embossing toilet paper, wherein the edge emboss pattern to be applied satisfies the following requirements (A) to (C).
(A) A rectangular unit concave emboss having a side parallel to the width direction orthogonal to the continuous direction of the toilet paper base, and the continuous direction and the width direction side being 0.4 to 0.7 mm is in the continuous direction. The unit concave embossed rows arranged at intervals of 4.50 to 5.50 mm are edge embossed patterns arranged in three rows at the left and right center in the width direction .
(B) A triplet pattern that is arranged with an angle of 40 to 50 ° with respect to the width direction of the toilet paper base with three unit concave embosses in each of the left column, the center column, and the right column. Edge emboss pattern that appears repeatedly in the continuous direction of the base paper.
(C) The side parallel to the width direction orthogonal to the continuous direction of the toilet paper base paper of the unit concave emboss in each of the left column, the central column, and the right column does not match and is adjacent in the continuous direction of the central column It is an edge emboss pattern which is a pattern arranged so that the unit concave embosses in the right and left columns located on the left and right between the unit concave embosses overlap each other at the position in the width direction.   The method for embossing toilet paper according to claim 5, wherein the height of the unit convex embossing for forming the unit concave embossing in the convex embossing roll is 0.40 to 0.70 mm.

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