JP6548362B2 - Method of emboss integrated toilet roll and toilet paper - Google Patents

Description

  In the present invention, a toilet roll is a toilet roll in which toilet paper in which a plurality of band-like toilet paper base papers are integrally laminated by embossing is applied along a continuous direction is rolled, and a plurality of band-like toilet paper base papers The present invention relates to a method of manufacturing a toilet paper having a stamped and integrated method for preventing the ply peeling off.

  It is well known that a toilet roll in which a band-like toilet paper base paper is wound into a roll is well known, but in this toilet roll, the toilet paper is composed of a plurality of plies in which a plurality of toilet paper base papers are integrally laminated, and the toilet roll. There is a single thing which made the paper base paper the one sheet.

  Among them, those with multiple plies are also referred to as embossing (unified edge embossing, contact embossing, etc.) in the production of the ply peeling of each laminated base paper. (Also referred to as edge emboss).

  The edge emboss is formed by superimposing the base paper on a relatively narrow edge emboss roll having a plurality of unit convex emboss applied in a predetermined emboss pattern, and a metal or rubber receiving roll receiving the edge emboss roll. The predetermined emboss pattern is applied by embossing.

  And this edge emboss is arranged in a wide range of paper surface in a geometric or random pattern to improve the design, smoothness and bulkiness of the toilet paper (Such an emboss is a main emboss, a design emboss) It is also called micro-emboss, macro-emboss, etc. In the present invention and in the specification, it is also called as main emboss.

  That is, while being able to press-fit each toilet paper base paper firmly to such an extent that ply peeling can be prevented, the abrasion resistance of an edge embossing roll must also be considered. In addition, it is necessary not to affect the shape or the like of the product by applying the edge embossing.

With regard to the pressure-bonding property, the pressure for unit emboss embossing may be increased, but simply raising the pressure in such a manner causes problems such as deterioration of abrasion resistance and formation of holes in the toilet paper. Furthermore, if the top area of the unit convex embossing formed on the edge embossing roll is increased or the unit convex embossing is densely arranged, the abrasion resistance is also improved. However, simply doing this, the toilet paper is rolled When processed into a square shape, the crimped part floats up in the form of a band, and a rib is formed on the peripheral surface of the roll, resulting in a phenomenon that the appearance is impaired. On the other hand, if the top area of the unit convex embossing is reduced, the phenomenon that the crimped part is lifted up in a band shape when processing the toilet paper into a roll is hard to appear, but it becomes difficult to secure the abrasion resistance and When the edge embossing roll bounces or shakes due to vibration, the edge embossing roll is apt to come into contact with the surface of the paper, which causes the edge embossing. In some cases, there may be a portion where no is applied, or an emboss may be imparted due to excessive pressure to cause a hole in a portion to be an emboss recess, resulting in an unattractive product.

Patent No. 4450421 Patent No. 4627892 Patent No. 5399727 Patent No. 5331530 Patent No. 5005085

  Therefore, the main problems of the present invention are: the prevention of ply peeling, the prevention of bouncing and partial contact, the prevention of formation of rib-like portions in roll shape, the edge embossing roll, which solves the problems related to the edge embossing. It is an object of the present invention to provide a toilet roll and a squeeze integrated method of the toilet roll which are excellent in abrasion resistance.

  The present invention which solved the above-mentioned subject is as follows.

<Invention according to claim 1>
The toilet roll is a toilet roll in which a plurality of plies of toilet paper formed by laminating and integrating a plurality of band-like toilet paper base sheets in a continuous direction are formed in a roll.
Said embossing is;
It has a short side parallel to the width direction orthogonal to the continuous direction of the toilet paper and a long side connecting both ends of this short side and having an angle of 45 to 90 ° with respect to the width direction, the length of the short side Saga is 0.5-0.7 mm, the distance of the short side Ri 0.5~1.8mm der, embossing depth of 0.1 to 1.2 mm, rectangular unit concave embossment,
Unit concave emboss rows are disposed at intervals of 0.9 to 3.0 mm in the continuous direction of the toilet paper base paper,
In the width direction orthogonal to the continuous direction along the continuous direction of the toilet paper base paper, it is spaced apart within a range of 2.5 to 6.0 mm and has two rows in parallel;
And, the two short sides of the unit concave emboss of each row are close to the other unit concave embossed row in which the short side on the core side of the toilet roll is parallel, and the other short side located on the drawing end side of the toilet roll is parallel The unit is in a distant relationship to the concave embossing row,
And the sample cut by 20 mm in the width direction and 100 mm in the continuous direction so as to include the embossed part is peeled off 30 mm from one end in the continuous direction and 25 mm of the separated end is fixed to each chuck of the tensile tester and set. The ply peel strength is 4.5 cN or more when one chuck is pulled 50 mm at a speed of 100 mm / min.
Toilet roll characterized by.

<Invention according to claim 2>
The unit concave emboss of one row is arranged so as to partially overlap in the continuous direction with each unit concave emboss of the other row located on the core side and the drawing end side of the unit concave emboss. Toilet roll described.

<Invention according to claim 3>
The toilet roll according to claim 2, wherein the overlapping width in the continuous direction is 10 to 35% of the distance between the two short sides of the unit concave embossing.

<Invention according to claim 4>
Each unit recessed embossing row is a row in which one or a plurality thereof is repeatedly and continuously arranged with a distance of 0.10 to 0.25 mm while being shifted laterally in the lateral direction. The toilet roll according to any one of claims 1 to 3.

<Invention according to Claim 5>
A method for emboss integrated toilet paper comprising laminating and integrating a plurality of toilet paper base papers by using an edge embossing means having an edge embossing roll having convex emboss on the surface and a receiving roll for receiving the same.
An array pattern of convex embossing on the surface of the edge embossing roll;
It has a short side parallel to the width direction along the rotation axis direction of the edge embossing roll, and a long side connecting both ends of this short side and having an angle of 45 to 90 ° with respect to the width direction. A rectangular unit convex embossing having a length of 0.5 to 0.7 mm, a short side separated distance of 0.5 to 1.8 mm, and an embossing height of 0.4 to 1.2 mm,
Unit convex embossed rows, which are disposed at intervals of 0.9 to 3.0 mm in the rotational direction,
In the width direction, two rows are arranged in parallel along the rotational direction, spaced apart within a range of 2.5 to 6.0 mm,
Also, the two short sides of the unit convex emboss in each row are close to the other unit convex emboss row in which the short side on the side that contacts the paper quickly is parallel, and the other unit convex that the short side on the side that contacts the paper late in parallel Positioned far from the embossed row,
A method of embossing and integrating toilet paper characterized by

<Invention according to claim 6>
The unit convex emboss of one row is arranged to partially overlap in the continuous direction with each unit convex emboss of the other row located on the side contacting the paper later than the unit convex embossing and the side contacting the paper earlier than the unit convex embossing A method of embossing and combining toilet paper according to claim 5.

<Invention according to claim 7>
The method for embossing and integrating toilet paper according to claim 6, wherein the overlapping width in the rotational direction is 10 to 35% of the distance between two short sides of the unit convex embossing.

<Invention according to claim 8>
Each unit convex embossed row is a row in which one set or a plurality of sets is continuously and repeatedly arranged while being shifted to the left and right in the width direction at a distance of 0.10 to 0.25 mm. The emboss integrated method of the toilet paper in any one of Claims 5-7.

  According to the present invention as described above, a toilet roll and toilet that are excellent in ply peeling prevention property, bouncing and one-piece preventing property, prevention property of formation of rib-like portion when made into a roll shape, and excellent in abrasion resistance of edge embossing roll A method is provided for embossing the paper.

It is a perspective view of a toilet roll concerning an embodiment of the present invention. It is a figure for demonstrating the shape of the unit concave embossing which concerns on embodiment of this invention. It is a figure for explaining the edge embossing concerning the embodiment of the present 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 concerning this invention. It is a figure for demonstrating the pattern of the convex embossing roll which concerns on this invention. It is a figure for demonstrating the other edge embossing based on embodiment of this invention. It is a figure for demonstrating the pattern of the convex embossing roll for providing the other edge embossing based on embodiment of this invention. It is a figure for demonstrating another edge embossing which concerns on embodiment of this invention. It is a figure for demonstrating the pattern of the convex embossing roll for providing another edge embossing based on embodiment of this invention. It is a figure for demonstrating the pattern of the edge embossing of the comparative example 1. FIG. It is a figure for demonstrating the pattern of the edge embossing of the comparative example 2. FIG. It is a figure which shows the pattern of the edge embossing of a prior art example. It is a figure for demonstrating the test method of ply peeling prevention property.

  Next, the embodiment of the present invention will be described in detail with reference to FIGS. 1 to 14 including comparative examples. In addition, while the description mainly focuses on the description of the toilet roll, a method of embossing and integrating the toilet paper will also be described.

The toilet roll 1 which concerns on this embodiment is shown in FIG. The toilet roll 1 is integrally laminated by embossing (hereinafter also referred to as edge emboss) 2 in which a plurality of band-like toilet paper base papers 11, 11 are applied along the continuous direction at the edges in the width direction thereof. The multi-ply toilet paper 10 is wound around the paper tube 3 in a roll shape. In addition, as a position where the edge emboss 2 is arranged, it is preferable that it is located at both widthwise edges of the toilet paper 10, more specifically, at an edge within a range of 50 mm from both edges. It is not limited to. Also, it may be disposed only on one side edge. Regarding the number of plies, it is desirable to be from 2 to 3 plies, and in particular to be 2 plies. The paper thickness of the toilet paper 10 is preferably 100 to 350 μm, and the basis weight per ply is preferably 11.0 to 25.0 g / m ² . When the number of plies, the thickness of the paper and the basis weight are in the range, the softness and the water absorbability at the time of use can be secured, and particularly, the effect by the edge emboss 2 of the configuration according to the present invention described later becomes more remarkable.

  In addition, the rice basis weight which concerns on this embodiment is a thing by the rice basis measurement method of JISP 8124 (1998), and, after fully adjusting humidity under the conditions of JIS P 8111 (1998) with paper thickness, Under the same conditions, using a dial thickness gauge (thickness measuring instrument) “PEACOCK G type” (manufactured by Ozaki Mfg. Co., Ltd.), five different places of the toilet paper 10 are measured, and the average value of the measured values of the five places is said.

  The size and 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 (total length of toilet paper) is 18 to 70 m, the paper tube outer diameter L3 is 35 to 50 mm, and the toilet roll 1 according to the present invention can also be in this range.

  On the other hand, the edge emboss 2 applied to the toilet paper 10 according to the present embodiment has a characteristic pattern as follows. That is, as shown in FIGS. 2 (a) and 2 (b), the shape of one unit concave emboss 20, 20... Constituting the edge emboss 2 is orthogonal to the continuous direction of the toilet paper base paper 11, 11. Short sides E1 and E2 parallel to the width direction, and both ends of the short sides E1 and E2 have an angle of 45 to 90 ° with respect to the width direction (this angle is indicated by a symbol ∠A in the figure) It has long sides E3 and E4, the lengths L4 and L5 of the short sides E1 and E2 are 0.5 to 0.7 mm, and the separation distance L6 between the short sides E1 and E2 in the continuous direction is 0. It has a rectangular shape of 5 to 1.8 mm. As shown in FIG. 2B, the lengths of the short sides E3 and E4 do not necessarily have to be the same, and the angles of the long sides E4 and E5 with respect to the width direction also need to be the same. Absent. Therefore, the shape of the unit concave embossing according to the present embodiment may be not only a parallelogram but also a trapezoid.

  In addition, as shown in FIG. 3, the edge emboss 2 has an interval of 0.9 to 3.0 mm in the continuous direction of the toilet paper base paper 11, each unit concave emboss 20, 20. In the figure, the symbol L7 is indicated, and this interval is also referred to as a pitch), preferably along the continuous direction of the toilet paper base paper 11, 11 at equal intervals to form a unit concave embossed row 20L. Further, the unit concave embossing row 20L is separated in a range of 2.5 to 6.0 mm in the width direction orthogonal to the continuous direction (the range of the separation is shown as L8 in the figure) ing. Furthermore, this edge embossing 2 is another unit concave in which the two short sides E1, E2 of the unit concave embossings 20, 20 ... of each row 20L, 20L are parallel to the short side E1 on the core side of the toilet roll 1 The short side E2 located near the emboss line and located on the pull-out end side of the toilet roll 1 is distant from the other unit concave emboss line parallel to each other, as particularly shown in FIGS. 1 and 3. The unit concave embossments 20, 20,... Are arranged in a continuous direction in a substantially C shape or a zigzag shape in which the lead-out end side of 1 is open.

  The pattern of the edge emboss 2 according to the present embodiment has a shape or size of the unit concave emboss 20, and a substantially C shape or a zigzag shape in which the drawing end side of the toilet roll 1 described above is arranged by the arrangement of each unit concave emboss 20. The unit concave embossments 20, 20... Are arranged in the continuous direction, whereby ply peeling is suitably prevented. More specifically, the size (area) of the unit concave emboss 20 has a relatively large area as the area of the unit concave emboss 20 of general edge embossing. Therefore, by setting it as this size, the prevention property of the ply peeling by the area of the part by which toilet paper base paper is mutually crimped | bonded by each unit concave embossing 20 is large. In addition, since the toilet roll 1 is used by being pulled out from the end (tip) on the pullout side when used, the ply peeling in use tends to occur from the end on the pullout side. The pattern of the edge emboss 2 according to the present embodiment is, in addition to the effect of the size of the unit concave emboss 20, in particular, a substantially C shape or a zigzag shape in which the drawer end side of the toilet roll 1 is opened as a characteristic shape. .. Are arranged in the continuous direction, and intermittently in the continuous direction in such a manner that the crimped portions by the edge emboss 2 become sparse to dense from the end on the withdrawal end side toward the core side As it will be placed and pressure bonding will locally increase from the sparse side to the dense side, even if ply peeling occurs at the draw-out end of the toilet roll 1, it is difficult to chain toward the core side, which is effective Ply peeling is prevented.

  Moreover, the pattern of the edge embossing 2 which concerns on this embodiment is excellent also in the prevention property of formation of the rib shaped part at the time of making it roll shape. Explaining this, the toilet roll 1 receives a plurality of wide continuous laminated toilet paper base papers 11 and 11 in a strip shape, and an edge embossing roll 5 having convex embossing on the surface as shown in FIG. An edge emboss 2 is imparted through the gap between the receiving roll 6 and laminated and integrated, and then the laminated and integrated toilet paper 11A is wound to the same diameter as the product diameter of the toilet roll 1 to obtain log 90 as an intermediate product. Are manufactured by cutting this log 90 with an appropriate width thereafter. In addition, in the figure, although the edge embossing roll 5 is located above and the receiving roll 6 is located downward, the positional relationship may be upside down.

  In order to provide the pattern of the edge embossing 2 which concerns on this embodiment, the edge embossing roll 5 by which the convex embossing which concerns on the pattern is arranged is used. That is, as the manufacturing method according to the present invention, as shown in FIGS. 4 to 6, short sides e1 and e2 parallel to the width direction parallel to the rotation axis of the edge embossing roll 5, and the short sides e1. , E2 are connected to each other, and long sides e3 and e4 each having an angle of 45 to 90 ° with respect to the width direction (in the figure, this angle is indicated by a symbol ∠B, where ∠A = ∠B) A rectangular unit convex emboss 20x having a length of 0.5 to 0.7 mm on its short sides L9 and L10 and a separation distance L11 on its short sides of 0.5 to 1.8 mm, The unit convex embossed rows 20l are arranged at an interval L12 of 0.9 to 3.0 mm, preferably at equal intervals, in the range of 2.5 to 6.0 mm in the width direction (the range of the distance L13 in the figure). And two rows parallel to each other along the rotational direction, and the unit convex of each row The two short sides of the boss 20x are close to the other unit convex embossed row in which the short side e1 on the side contacting the paper quickly is in parallel, and the short side e2 on the side late in contact with the paper is far to the other unit convex embossing row in parallel The edge embossing 2 is applied using an edge embossing roll 5 having an arrangement pattern of convex embossing on the circumferential surface, which is in positional relation.

  In the application mode of the edge emboss 2 by the edge embossing roll 5, as shown in FIG. 6, in particular, the reversely curved letter or the unit convex emboss 20x, 20x... Since the lines are arranged, when the unit convex embossing 20x of each row is in contact with the paper surface and embossed, the paper is not deviated between the unit convex embossing rows, and conversely, the wrinkles of the paper are stretched in the direction away from between the unit convex embossing rows. It will be. In particular, in the pattern of the edge emboss 2 of the present embodiment, the long sides E3 and E4 of the unit concave emboss 20 have an angle of 45 ° or more in the continuous direction, so when the edge emboss 2 is applied, the long side E3, The resistance when the long sides e3 and e4 of the unit convex emboss 20x for forming E4 make contact with the paper as the emboss roll 5 rotates is small, and the wrinkles are easily stretched effectively. Therefore, the pattern of the edge emboss 2 according to the present embodiment is a pattern in which the paper is less likely to slip between the unit concave embossed rows 20L at the time of application, and therefore, when formed in a roll It is prevented from being formed into a shape. In the case of a convex embossing pattern in which unit V-shaped shapes are simply arranged so as to continue in the rotational direction so that the unit convex embossing rows do not separate, wrinkles are easily deviated between unit concave embossings in the continuous direction, and wide crimped portions It can not be suitably prevented that it becomes a rib shape in combination with it.

  Furthermore, the prevention of the formation of the rib-like portion in the roll shape is the width direction in which the shape of the unit concave emboss 20 according to the present embodiment is such that the short sides E1, E2 are orthogonal to the continuous direction of the toilet paper 10. It also depends on being parallel to. For example, as a comparative example 1 of this embodiment, the pattern of the edge emboss 2 in which the short sides E100 and E200 shown in FIG. 11 (A: paper) are not parallel to the width direction orthogonal to the continuous direction of the toilet paper 10 As shown by the arrow P of 11 (B: embossing roll surface), when the edge embossing 2 is applied, the paper is along the short side e100 of the unit convex embossing 120x for forming the short side E100 of the unit concave embossing 120 There is a possibility that wrinkles may be generated between the unit convex embossed rows by shifting between the unit convex embossed rows. On the other hand, in the pattern of the edge emboss 2 in which the short sides E1 and E2 are parallel to the width direction orthogonal to the continuous direction of the toilet paper 10 as in this embodiment, unit convexes forming the short sides E1 and E2 Since the short sides e1 and e2 of the emboss are in line contact with the paper surface, the paper does not fall between the unit convex embossed rows along the short sides e1 and e2, Combined with the continuous pattern of the unit recessed emboss 20, 20 ..., no wrinkles are generated between the unit recessed embossed row 20L, 20L, and the prevention of formation of the rib-like portion when made into a roll is more reliable It becomes.

  Furthermore, the pattern of the edge emboss 2 according to the present embodiment also has an advantage at the time of application. As described above, in the pattern of the edge emboss 2 according to the present embodiment, the unit concave emboss 20 has a relatively large area. In other words, the area of the top of the unit convex embossing 20x is also wide, and the wear resistance is excellent, and the short sides E1 and E2 of the unit concave embossing 20 are orthogonal to the continuous direction of the toilet paper base paper 11 and 11 As described above, unit convex emboss 20x of edge embossing roll 5 becomes unit convex embossing 20x having sides e1 and e2 parallel to the axial direction orthogonal to the rotation direction of edge embossing roll 5 as described above. . In the case of the unit convex emboss 20x, when the unit convex emboss 20x is pressed against the paper surface, it always contacts the paper from the short side e1 and drops out from the short side e2. The unit convex emboss 20x has a rhombic or quadrilateral shape, a pattern having a pattern in contact with the apex of a triangle or a top face of a circle, in other words, a unit concave emboss 20 of the edge emboss 2 has an apex in the continuous direction of the toilet paper 10. If the pattern is a rhombic or triangular pattern, or a circular pattern, when the unit convex emboss 20x starts contacting the paper surface, an excessive force is applied to the apex or one point of the circle, and the edge embossing roll 5 In particular, abrasion of the unit convex embossing 20x is likely to occur. For example, when the short side E100 or E200 as shown in FIGS. 11 and 12 shown as Comparative Example 1 and Comparative Example 2 of this embodiment is not parallel to the continuous direction, it is indicated by the symbol P of unit convex emboss 120x at the time of application. It will be in contact from the point, and wear will occur easily. In the pattern of the edge emboss 2 according to the present embodiment, the unit convex emboss 20x always comes in contact with the paper from the side e1 at the time of application and comes out from the short side e2, so that no excessive force is applied to one point Therefore, the wear is reduced.

  Furthermore, in the pattern of the edge emboss 2 of the present embodiment, since the unit concave embossing row 20L is juxtaposed in two rows, the corresponding unit convex embossing row 20l is also juxtaposed in two rows, and the unit convex embossing 20x is always always Together with coming in contact with the paper from the side e1 and coming out from the short side e2, each unit convex embossing 20x, 20x ... of the edge embossing roll 5 will be in stable contact with the paper, and one contact and bouncing will occur. It is effectively prevented. In addition, this single contact or bouncing is carried out in each unit concave emboss 20, 20 ... or each unit convex emboss 20 x, 20 x ... in the unit concave emboss column 20L or unit convex emboss column 20l, respectively, at equal intervals in the continuous direction or rotation direction. Is more preferably prevented.

  Here, in particular, in the pattern of the edge emboss 2 according to the present embodiment, as in the form shown in FIG. 7, the unit concave emboss 20 of one row is closer to the core side and the drawing end than the unit concave emboss 20. It is preferable to be disposed so as to partially overlap in the continuous direction with each unit concave emboss 20, 20 of the other row located (overlapping portion is indicated by a symbol L14 in FIG. 7). In other words, the core-side end of the toilet roll 1 of the unit concave emboss 20 of one row is the end of the extraction end of the toilet roll 1 of the unit concave emboss 20 of the other row, and the one row The end of the unit concave emboss 20 on the pull-out end side of the toilet roll 1 is arranged to overlap the end on the core side of the toilet roll 1 of the unit concave emboss 20 in the other row in the continuous direction. In this pattern, ply peeling becomes more difficult because the crimped portions continue without interruption along the continuous direction of the toilet paper base paper 11. Further, in this pattern, as shown in FIG. 8, the pattern of the edge embossing roll 5 is such that the unit convex emboss 20x of one row is in contact with the paper later than the unit convex emboss 20x and on the side with earlier contact The unit convex emboss 20x and 20x of the other row are arranged so as to partially overlap in the continuous direction, so any unit convex emboss 20x of each row is always in contact with the paper surface. The sheet is more stably in contact with the surface of the paper, and one-sided contact and bounce are more effectively prevented. Here, the overlapping width L14 in the continuous direction is preferably 10 to 35% of the separation distance L6 of the two short sides E1 and E2 of the unit concave emboss 20. In terms of the arrangement pattern of the convex embossing of the corresponding edge embossing roll 5, the overlapping width L15 in the rotational direction of the edge embossing roll 5 is 10 to 35% of the separation distance L11 of the two short sides e1 and e2 of the unit convex embossing 20x. Is desirable. Within this range, one-side contact and bouncing are prevented more effectively, and the unit concave emboss 20 does not become excessively dense and the paper does not become hard due to the edge emboss 2.

  Furthermore, as shown in FIGS. 9 and 10, in particular, the pattern of the edge emboss 2 according to the present embodiment has one unit or a plurality of unit dented embossing rows 20L and 20L adjacent in the continuous direction as one set. It is desirable that one or a set be a row which is repeatedly and continuously arranged with a distance of 0.10 to 0.25 mm, shifted to the left and right in the width direction (FIGS. 9 and 10 are one example). ). FIG. 9 shows an embodiment in which each unit concave embossing row 20L is repeatedly and continuously displaced on the left side center on the basis of the position of the unit concave embossing 20P as a reference (the deviation is indicated by a symbol in the figure). Shown by X). However, the present invention is not limited to this, centering on the unit concave emboss 20P serving as the reference, center, slightly right, right, slightly right, center, slightly left, left, slightly left, center, etc. The configuration may be such that the configuration is such that it is offset each time, or the combination of the unit concave embossments 20 is positioned on a sine curve locus along the longitudinal direction. With respect to the pattern of the edge embossing 2 concerned, as shown in FIG. 10, the pattern of the convex embossing of the corresponding edge embossing roll 5 is based on the position of the unit convex embossing 20p where each unit convex embossing row 20l becomes a certain reference Therefore, the edge embossing roll 5 will be shifted in time due to the rotation of the edge embossing roll 5 because the corresponding position between the unit convex embossing 20x and the receiving roll 6 will be shifted in a timely manner during embossing. Furthermore, the wear of the receiving roll 6 is also reduced. In addition, by displacing the right side and the left side especially through the center, one-side contact of the edge embossing roll 5 is also prevented.

  When unit concave emboss 20 constitutes a set, the number of unit concave emboss 20 in the set is not particularly limited. It can design suitably according to the number of units concave emboss 20 which constitutes each line which meets the rotation direction. In this case, it is desirable to use a divisor of the total number of unit concave embossments 20 in each row. In this way, when several of them are combined into one set, the rotation becomes stable when the edge emboss 2 is applied, and blurring in the lateral direction is more effectively prevented. Here, it is desirable that the specific number of unit concave embossments 20 constituting the set of unit concave embossments 20 be 30 or less. Depending on the diameter of the edge embossing roll 5, if the size of the general edge embossing roll 5 exceeds 30 pieces, the position change in the lateral width direction of the facing position of the edge embossing roll 5 and the receiving roll 6 is performed Since the time until it becomes long becomes long, the improvement effect of abrasion resistance becomes small. Preferably, it is 1 to 5, more preferably 1 to 3. Within this range, the time to position change is not too long, and in particular, the effect of preventing wear is excellent.

  Here, as an embossing depth of unit concave embossing 20 in edge embossing 2 concerning this embodiment, it is desirable to be referred to as 0.1-1.2 mm. In terms of embossing conditions, the embossing height of the unit convex embossing 20x is preferably 0.4 to 1.2 mm. Within this range, it is possible to provide the edge emboss 2 firmly enough to prevent the ply peeling, and it is effectively prevented that the toilet paper 10 has a hole or the edge emboss 2 is conspicuous. The effect of setting the embossing depth is particularly remarkable in the thickness and the thickness of the toilet paper 10 described above.

  On the other hand, when manufacturing the toilet roll 1 which concerns on this embodiment, except addition of the edge embossing 2 which concerns on this invention, it can manufacture according to a known manufacturing procedure, for example, a long paper pipe. The manufacturing process, the log manufacturing process of manufacturing a log using a wide toilet paper for the long paper tube, the cutting process of cutting the log into individual toilet rolls 1, and manufacturing in order It is a procedure.

  Then, the toilet roll 1 according to the present embodiment, as shown in FIG. 4 in the log manufacturing process, is a plurality of original fabric roll rolls in which wide toilet paper base papers 11 and 11 corresponding to the width of the log 90 are wound in advance. From 80 and 80, after spreading out wide toilet paper base paper 11 and 11, respectively, after superposing, until it winds on a paper tube, edge embossing which comprises edge embossing roll 5 and receiving roll 6 which receives it is given Through the means 56, the edge emboss 2 may be provided and laminated and integrated. When a main emboss other than edge emboss is applied, although not shown, the main emboss is applied to each toilet paper base paper fed out from each original fabric roll, and then the toilet paper base paper to which the main emboss is applied 11 and 11 may be superimposed, and then the edge embossing 2 may be imparted by the edge embossing imparting means 56, or the main embossing may be imparted after superimposing the toilet paper base sheets fed out from the respective raw fabric rolls. Then, edge embossing may be applied by the edge embossing means 56. Furthermore, it is also possible to feed the toilet paper base paper in a laminated state from the raw fabric roll wound in a state in which a plurality of toilet paper base papers 11A are laminated in advance, and to apply the edge emboss 2 by the edge embossing applying means 56.

  The emboss pressure at the time of applying the edge emboss 2 and the main emboss may be appropriately adjusted within a known range depending on the thickness, density and the like of the paper.

  With regard to the edge embossing of Examples 1 to 5 according to the present invention, the edge embossing of Comparative Examples 1 to 2, and the edge embossing of the conventional example, ply releasability, prevention of formation of a rib-like portion when formed into a roll, and the same Since the abrasion of the edge embossing roll for applying edge embossing was evaluated, the results are shown in Table 1 below.

  Example 1 in the table is the pattern of edge emboss shown in FIG. 3, Examples 2 to 4 are the pattern of edge emboss shown in FIG. 7, and Example 5 is the pattern of edge emboss shown in FIG. It is a pattern. The dimensions and the like of the unit concave embossing are as shown in Table 1.

  Comparative Example 1 is a pattern of edge embossing shown in FIG. 11, Comparative Example 2 is a pattern of edge embossing shown in FIG. 12, and a conventional example is a pattern of edge embossing shown in FIG. In FIG. 11 to FIG. 13, the unit concave emboss in the comparative example and the conventional example is indicated by reference numeral 120 and the unit convex emboss is indicated by reference numeral 120 x. The dimensions and the like of the unit concave embossing in Comparative Examples 1 to 3 are also shown in Table 1.

The toilet paper used for embossing was a two-ply structure in which two sheets of toilet paper base paper having a basis weight of 16.5 g / m ² were stacked, and the paper thickness was 210 μm (two-ply).

  About the abrasion of an edge embossing roll, after giving an edge embossing to about 18,000,000 m of toilet paper base paper, the condition of the abrasion of the edge embossing roll is checked visually, and it is less than a conventional example X: the abrasion which is equivalent to that of the conventional example is evaluated as Δ; the abrasion which is not worn as compared with the conventional example is evaluated as も の; and the abrasion which is not worn is evaluated as ◎.

  As for the prevention of ply peeling, as shown in (1) front view and (2) side view in FIG. 14, 20 mm in the width direction and 20 mm in the width direction so as not to include the perforation etc. Prepare a 100mm-cut sample in the range, peel the sample 30mm from one end in the continuous direction, fix the separated end 25mm to each chuck of the tensile tester, and set one chuck at 100mm / min The strength of ply peeling was measured at a speed of 50 mm under tension, and evaluated from the measured values. In the evaluation, if it is a measured value of 4.5 cN or more in this test, it can be judged that there is almost no fear of ply peeling. Therefore, one having a measured value of 4.5 cN or more was evaluated as ○.

  To prevent the formation of the rib-like portion when making it into a roll shape, create a toilet roll in which a toilet paper is wound 30 m on a paper tube with an outer diameter of 42.8 mmφ and a width of 114 mm, It was confirmed that the height of the building was rising. As a specific confirmation method, each roll was viewed from the end face, and the height of the edge emboss applied portion on the outer surface side was measured with a ruler with reference to the edge of the end face. The measurement is performed by photographing the toilet roll with a ruler in an end view. Moreover, the measured value was taken as the average value of five rolls.

  In the evaluation, if it is 0.8 mm or less, almost no rib shape is visually observed, so 0.8 mm or less is ○, and further, 0.3 mm or less is ◎. Moreover, since it is visually recognized that it will become rib shape when it exceeds 0.8 mm, 0.8 mm-1.5 mm or less were evaluated as (triangle | delta). Furthermore, since the rib-like portion clearly appears when it exceeds 1.5 mm, the one exceeding 1.5 mm is evaluated as x.

  As shown in Table 1, in each of the examples according to the present invention, the prevention of the ply peeling of the toilet paper resulted in a better result than the conventional example. Moreover, about the abrasion property of an edge embossing roll, a better result was obtained than the comparative example 1 and the comparative example 2 which do not have a short side parallel to the continuous direction of a unit concave embossing.

  In addition, the prevention of the formation of the rib-like portion when making it into a roll shape is that the edge-embossed portion swells by about 2.0 mm and 2.1 mm in the conventional example and the comparative example 2, and the rib-like portion is formed notably That was confirmed. Further, also in Comparative Example 1, a rise of about 1.5 mm could be confirmed. On the other hand, in each Example, in any of 30 m winding, it was settled in the range of 0.3-0.5 mm, and it was confirmed that it does not swell from other parts and a rib-like part is hardly formed.

  From this, by making the pattern of the edge embossing according to the present invention, the rib-like portion is not formed, the appearance is excellent in the designability, the sufficient ply peeling prevention property is obtained, and the abrasion of the edge embossing roll Was also confirmed to be good.

DESCRIPTION OF SYMBOLS 1 ... Toilet roll, 10 ... Toilet paper, 11 ... Toilet paper base paper, 3 ... Paper tube, 2 ... Edge embossing (embossing), L1 ... Width of toilet roll, L2 ... Diameter of toilet roll, L3 ... Paper pipe outer diameter , 20 ... unit concave emboss, E1 ... unit concave emboss toilet paper base paper parallel to width direction orthogonal to the continuous direction and located on the toilet roll core side E2, ... unit concave emboss toilet paper base paper continuously Short sides parallel to the orthogonal width direction and located on the draw-out end side of the toilet roll, E3, E4 ... long sides connecting both ends of each short side, ∠ A ... width direction and long sides orthogonal to continuous direction of toilet paper base paper , L4, L5 ... length of short side of unit concave embossing, L6 ... separation distance between short sides of unit concave embossing, L7 ... single in continuous direction Interval of concave emboss, L8: arrangement range in the width direction of unit concave emboss, 20 L: unit concave emboss row, 20 x: unit convex emboss, e1: unit convex embossing parallel to the rotation axis direction and in contact with paper surface at the time of rotation Short side, e2: short side parallel to the rotational axis direction of unit convex embossing and in contact with the paper lately when rotating, e3, e4 ... long side connecting both ends of each short side, L9, L10 ... short side of unit convex embossing Length L11 ... distance between short sides of unit convex embossing L12 ... interval between unit convex embossing in rotational direction 20 l ... unit convex embossing row, L13 ... arrangement range of unit concave embossing width direction L14 ... Overlapping part of unit concave embossing, L15: Overlapping part of unit convex embossing, ∠ B: Angle between width direction parallel to rotation axis and long side of unit convex embossing, 56: Edge embossing giving means, 80: original Roll, 90 ... log.

Claims (8)

The toilet roll is a toilet roll in which a plurality of plies of toilet paper formed by laminating and integrating a plurality of band-like toilet paper base sheets in a continuous direction are formed in a roll.
Said embossing is;
It has a short side parallel to the width direction orthogonal to the continuous direction of the toilet paper and a long side connecting both ends of this short side and having an angle of 45 to 90 ° with respect to the width direction, the length of the short side Saga is 0.5-0.7 mm, the distance of the short side Ri 0.5~1.8mm der, embossing depth of 0.1 to 1.2 mm, rectangular unit concave embossment,
Unit concave emboss rows are disposed at intervals of 0.9 to 3.0 mm in the continuous direction of the toilet paper base paper,
In the width direction orthogonal to the continuous direction along the continuous direction of the toilet paper base paper, it is spaced apart within a range of 2.5 to 6.0 mm and has two rows in parallel;
And, the two short sides of the unit concave emboss of each row are close to the other unit concave embossed row in which the short side on the core side of the toilet roll is parallel, and the other short side located on the drawing end side of the toilet roll is parallel The unit is in a distant relationship to the concave embossing row,
And the sample cut by 20 mm in the width direction and 100 mm in the continuous direction so as to include the embossed part is peeled off 30 mm from one end in the continuous direction and 25 mm of the separated end is fixed to each chuck of the tensile tester and set. The ply peel strength is 4.5 cN or more when one chuck is pulled 50 mm at a speed of 100 mm / min.
Toilet roll characterized by.   The unit concave emboss of one row is arranged so as to partially overlap in the continuous direction with each unit concave emboss of the other row located on the core side and the drawing end side of the unit concave emboss. Toilet roll described.   The toilet roll according to claim 2, wherein the overlapping width in the continuous direction is 10 to 35% of the distance between the two short sides of the unit concave embossing.   Each unit recessed embossing row is a row in which one or a plurality thereof is repeatedly and continuously arranged with a distance of 0.10 to 0.25 mm while being shifted laterally in the lateral direction. The toilet roll according to any one of claims 1 to 3. A method for emboss integrated toilet paper comprising laminating and integrating a plurality of toilet paper base papers by using an edge embossing means having an edge embossing roll having convex emboss on the surface and a receiving roll for receiving the same.
An array pattern of convex embossing on the surface of the edge embossing roll;
It has a short side parallel to the width direction along the rotation axis direction of the edge embossing roll, and a long side connecting both ends of this short side and having an angle of 45 to 90 ° with respect to the width direction. A rectangular unit convex embossing having a length of 0.5 to 0.7 mm, a short side separated distance of 0.5 to 1.8 mm, and an embossing height of 0.4 to 1.2 mm,
Unit convex embossed rows, which are disposed at intervals of 0.9 to 3.0 mm in the rotational direction,
In the width direction, two rows are arranged in parallel along the rotational direction, spaced apart within a range of 2.5 to 6.0 mm,
Also, the two short sides of the unit convex emboss in each row are close to the other unit convex emboss row in which the short side on the side that contacts the paper quickly is parallel, and the other unit convex that the short side on the side that contacts the paper late in parallel Positioned far from the embossed row,
A method of embossing and integrating toilet paper characterized by   The unit convex emboss of one row is arranged to partially overlap in the continuous direction with each unit convex emboss of the other row located on the side contacting the paper later than the unit convex embossing and the side contacting the paper earlier than the unit convex embossing A method of embossing and combining toilet paper according to claim 5.   The method for embossing and integrating toilet paper according to claim 6, wherein the overlapping width in the rotational direction is 10 to 35% of the distance between two short sides of the unit convex embossing.   Each unit convex embossed row is a row in which one set or a plurality of sets is continuously and repeatedly arranged while being shifted to the left and right in the width direction at a distance of 0.10 to 0.25 mm. The emboss integrated method of the toilet paper in any one of Claims 5-7.

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