WO2003026472A1

WO2003026472A1 - Toilet paper

Info

Publication number: WO2003026472A1
Application number: PCT/DE2002/003505
Authority: WO
Inventors: Helmuth Friedrich
Original assignee: Helmuth Friedrich
Priority date: 2001-09-22
Filing date: 2002-09-19
Publication date: 2003-04-03
Also published as: DE20115633U1

Abstract

The invention relates to toilet paper that is wound onto a roll in the form of a toilet paper strip (12.2). The individual paper sheets are separated from one another by perforated lines (20.1, 20.2). The perforated lines (20.1, 20.2) run along the paper strips (12.2) in such a way that the individual paper sheets (22.2a to c), which can be folded together to form a multi-ply sheet (23.8), measure no more than approximately 100 to 120 cm<2>.

Description

DESCRIPTION

Toilet paper

TECHNICAL AREA

The invention relates to toilet paper, as is usually provided as a wound toilet paper roll in toilet rooms.

STATE OF THE ART

Unless it is moistened, toilet paper is made available to the consumer on a roll. A piece of toilet paper is endlessly wound on a piece of cardboard tube, the length of which corresponds to the width of the toilet paper roll. In the toilet paper strip there are perforation lines which run across the strip and are at a constant distance from one another. In this way, pieces of toilet paper of the same size can be torn off the roll one after the other. It is also possible to tear two or three contiguous pieces of paper off the roll and then fold the torn piece in its perforation lines. In this way, the consumer can create a multi-layer and thus any thick piece of toilet paper.

Toilet paper rolls are known whose pieces of toilet paper have a width of approximately 10 cm (centimeters) and a length of approximately 14 cm. The perforation lines are spaced about 14 cm apart. In addition, toilet paper rolls are also known whose pieces of toilet paper have a longer length in comparison with the same width. The users accept the size of the toilet paper pieces as a given. The material thickness of the individual pieces is often judged to be too low and the papers are therefore used in two or more layers.

PRESENTATION OF THE INVENTION

Based on this prior art, the object of the invention is to provide the consumer with pieces of toilet paper that are as large as possible.

This invention is given by the features of the independent claims 1 and 2. Useful further developments of the invention are the subject of further claims that follow on from the claims.

The invention is based on the knowledge that the area of a piece of toilet paper that is effectively used in each case is regularly smaller than its actual area.

According to a first solution according to the invention it is therefore provided that the lines of weakness are arranged on a toilet paper strip wound into a roll in such a way that the individual pieces of paper are not larger than approximately 100 to 120 cm ² (square centimeters).

A second solution according to the invention includes that weakening lines are present at an angle deviating from 90 degrees (old degrees), based on the rolling direction. A stack of toilet paper can thus be formed, the base area of which is created by folding in the lines of weakness ^* is larger than the area of the individual piece of toilet paper. In a core area of the multi-layer paper stack, the desired one is nevertheless and only the required multilayer is present, while the multilayer decreases in a practically non-disturbing manner in the direction of the stack edge. Therefore, the benefit resulting from a multi-ply toilet paper stack with the large base area known in the prior art can also be achieved with comparatively smaller toilet paper pieces. On the other hand, pieces of toilet paper which have the large areas known in the prior art can also be used to produce even larger pieces of toilet paper. The areal size of the respective pieces of toilet paper, which are also stacked one above the other, is defined by the coherent paper surface, which is not disturbed by holes passing through the paper stack.

Further embodiments of the invention result from further claims subsequent to the subordinate claims.

Toilet paper strips wound on a roll can have several different lines of weakness. For example, the weakening lines can be present alternately, at an angle of 90 degrees and at an angle different therefrom, in each case with respect to the rolling direction. The individual pieces of toilet paper, each separated by lines of weakness, then have, for example, the shape of a one-sided or a two-sided trapezoid.

Pieces of toilet paper in the form of a parallelogram can be produced by lines of weakness, which are arranged parallel to each other and which have an angle deviating from 90 degrees to the rolling direction. By folding several pieces of paper of this type in the area of their lines of weakness, a piece of toilet paper of any size can be produced without holes of necessity due to the weakening lines in which toilet paper strips are present, in which a piece of multi-layered toilet paper would be available throughout and which could invalidate the utility of the multi-layer toilet paper.

In relation to the first solution according to the invention, the pieces of paper also shown in an exemplary embodiment have the shape of a square. It has been found to be completely sufficient if the length of the square side corresponds to the smaller side of the pieces of toilet paper known in the prior art, that is, for example, approximately 10 cm in size.

In an exemplary embodiment also shown in the drawing, the pieces of toilet paper can have the shape of a trapezoid. Because the trapezoidal pieces are also used in the direction of the diagonal of the trapezoid. can, it has turned out to be sufficient if only the larger of the two parallel edges of the respective individual piece of paper is about 10 cm in size. The smaller, parallel edge of the piece of paper only needs to be about 6 to 7 cm in size. The trapeze can be regular or even one-sided

Be trapezoidal, in which only one of the two base surfaces is oriented at an angle of 90 degrees to the rolling direction.

Such trapezoidal pieces of toilet paper can either be wound on a toilet paper roll so that the width of the toilet paper roll corresponds to the height of the individual trapezoids, or in such a way that the maximum width of the toilet paper roll corresponds to the length of the larger of the two base areas of the trapezoid. in the the latter case, the side surface of the toilet paper ^{roll ■ is} not flat.

According to a further embodiment of the invention, two strips of toilet paper can be wound side by side on a roll of toilet paper. This toilet paper roll then has a correspondingly greater width and the tube on which the two strips are wound has a correspondingly greater length. The two strips can consist of two wound-up toilet paper strips of the type described above, which are laterally connected by a common line of weakness, such as a perforation line. From such an enlarged toilet paper roll compared to the prior art, the users can tear off individual or even several connected pieces of paper at will and then use correspondingly single-layer or multi-layer toilet paper pieces that are smaller or larger in plan.

Further advantages and features of the invention can be found in the features further specified in the claims and in the exemplary embodiments below.

BRIEF DESCRIPTION OF THE DRAWING

The invention is described and explained in more detail below with reference to the exemplary embodiments shown in the drawing. Show it:

1 is a toilet paper roll according to a first embodiment of the invention,

2 shows a toilet paper roll according to a second embodiment of the invention, 3 shows a toilet paper roll according to a third embodiment of the invention,

4 shows a toilet paper roll according to a fourth embodiment of the invention,

5 is a toilet paper roll according to the prior art,

6 shows the longitudinal edge of the toilet paper strip according to FIG. 5 known in the prior art,

7 shows a toilet paper strip according to the invention composed of three trapezoidal pieces of toilet paper according to FIG. 2,

8 shows a toilet paper stack from the three pieces of toilet paper of the toilet paper strip shown in FIG. 7,

9 shows the longitudinal edge of the toilet paper strip according to FIG. 6 known in the prior art,

10 shows a toilet paper strip according to the invention composed of four trapezoidal toilet paper pieces of a further embodiment of the invention,

11 shows a stack of toilet paper from the four pieces of toilet paper hanging from each other of the toilet paper strip shown in FIG. 10,

12 shows the longitudinal edge of the toilet paper strip according to FIG. 6 known in the prior art, 13 shows a toilet paper strip according to the invention composed of three parallel pieces of toilet paper of a further embodiment of the invention,

FIG. 14 shows a toilet paper stack from three pieces of toilet paper of the toilet paper strip shown in FIG. 13.

WAYS OF CARRYING OUT THE INVENTION

In Fig. 1, a toilet paper roll 10 is shown, in which a toilet paper strip 12 is wound on a tube 14. The tube 14 is made of cardboard material. The tube 14 has a length 16 which is the width 18 of the

Toilet paper strip 12 corresponds. In the present case, the width 18 is approximately 10 cm (centimeters).

The toilet paper strip 12 is divided by mutually parallel perforation lines 20. The

Perforation lines run parallel to the tube axis 21 of the tube 14. The perforation lines 20 are at a distance 24 from one another, which corresponds to the width 18 in the present case. By tearing off pieces of paper along the perforation lines 20, individual toilet paper sheets 22 can be torn off the toilet paper roll 10, which have a square base area with the edge length of 10 cm each. The size of each sheet 22 is 100 cm ² (square centimeters). The rolling direction 19 is perpendicular to the tube axis 21.

If a thicker toilet paper sheet is desired, either several individual sheets 22 can be placed one on top of the other or, for example, two contiguous sheets 22 torn off the roll 10 and folded once along the perforation line 20 connecting them and then used as a two-ply sheet.

The toilet paper roll 10.2 shown in FIG. 2 differs from the toilet paper roll 10 in that the perforation lines 20.1 and 20.2 are not oriented at right angles but at an oblique angle to the tube axis 21. The two perforation lines 20.1 and 20.2 form the mutually inclined two edges of a trapezoidal surface 26 which has the base area of the corresponding individual toilet paper sheets 22.2. This trapezoidal surface 26 has two parallel edges 28, 30. The larger edge 28 has a length which corresponds to the width 18, that is to say approximately 10 cm in the present case. In contrast, the shorter edge 30 has a smaller length 31 of about 6 cm in the present case. Such sheets 22.2 are mutually rotated through the perforation lines 20.1 and 20.2 by 180 degrees (old degrees) in the toilet paper strip

12.2 available. Multi-layer sheets can also be created here by tearing off individual sheets 22.2 and stacking them one above the other or folding them together in a continuous manner.

In the toilet paper roll 10.3 shown in FIG. 3 there are also individual toilet paper sheets 22.2 which are present in the toilet paper strip 12.3 in a continuous manner via parallel perforation lines 20.3 and 20.4. The two unevenly long edges of the corresponding trapezoidal surfaces 26 are formed by these perforation lines 20.3 and 20.4. The perforation line 20.4 thus corresponds in length to the edge 28 and the shorter perforation line 20.3 to the shorter edge 30. The toilet paper strip 12.3 according to FIG. 3 therefore has a maximum width which corresponds to the length of the perforation line 20.4. In the present case, this maximum width 18 is also 10 cm. The shorter width of the strip 12.3 corresponds to the length 31 of the

Perforation line 20.3, which in the present case is approximately 6 cm. The mutual spacing of the perforation lines 20.3, 20.4 corresponds to the width 18 of the toilet paper rolls 10 and 10.2.

The width of the toilet paper roll 10.3 is not constant. In contrast to the embodiments according to FIGS. 1 and 2, the two opposite side surfaces 32, 34 are not flat. The maximum width is defined by the end points 36, 38 of the longer perforation lines 20.4. These end points lie on two spiral lines 40, 42 which represent the maximum lateral limitation of the toilet paper roll 10.3. In contrast to the toilet paper roll 10.2 shown in FIG. 2, a piece of toilet paper, for example two-ply, consisting of two sheets 22.2, can be formed by folding over along the perforation line 20.3 or 20.4, in contrast to the toilet paper roll 10.2, in which something of this type can only be torn off by individual and corresponding ones Laying torn pieces on top of each other is possible.

In the toilet paper roll 10.4 shown in FIG. 4, there are two toilet paper strips 12.2 attached to one another via a central perforation line 20.5. Perforation lines 20.1 and 20.2 are attached to each other in a roof-like manner. By separating different areas, toilet paper sheets 22.2 can be separated or connected over a piece of the middle perforation line 20.5 and / or the "oblique" Perforation lines 20.1 and 20.2 are torn off the toilet paper roll 10.4. In this way, multi-layered and multi-layered pieces of paper can be torn from the toilet paper roll 10.4.

5 shows a toilet paper roll 10.5 according to the known prior art. Perforation lines 20 run parallel to the tube axis 21 and thus at an angle 44 of 90 degrees to the rolling direction 19. The perforation lines 20 are at a constant distance from one another. The distance between these perforation lines and thus the length 46 of the individual sheets 22.5 is approximately 14 cm. The width 18 of the toilet paper roll 10.5 is 10 cm, as is also the case for the toilet paper roll 10 or 10.2. In the toilet paper roll 10.3, the width 18, 31 fluctuates between 10 and 6 cm.

The single toilet paper sheet 22.5, as is known in the prior art, has an area of 140 xsr (square centimeters). The comparable sheet size for the toilet paper roll 10 is only 100 cm ² . This means a paper saving of almost 30 percent based on the toilet paper roll 10.5 known in the prior art.

The sheet size 22.2 for the toilet paper roll 10.2 is 80 cm ² . This means a paper saving of a good 40 percent, based on the individual sheet.

The toilet paper roll 10.4 has two toilet paper strips 12.2 according to FIG. 2. In a comparable manner, two strips 12.3 according to FIG. 3 could also be joined together in a toilet paper roll to form a toilet paper roll connected via a central perforation line. This middle line of perforations would correspond to the edge 47 of the strip 12.3 and, accordingly, have a slightly zigzag-shaped orientation in the rolling direction 19.

6 shows the right edge 52 of a toilet paper strip 50 according to the prior art, as is already shown in FIG. 5 with the toilet paper roll 10.5 and the individual toilet paper sheets 22.5. The individual perforation lines 20 which run at a right angle 44 to the edge 52 and thus to the rolling direction 19 are at a distance from one another which corresponds to the dimension of the length 46 in FIG. 5. This length 46 is 14 cm in the present case. The toilet paper strip 50 has a width 18 of 10 cm in the example.

At a distance to the right of the toilet paper strip 50, a toilet paper strip 12.2 consisting of three connected sheets is shown in FIG. 7. This toilet paper strip 12.2 is also shown in Fig. 2. The individual sheets 22.2a, 22.2b and 22.2c hang together via perforation lines 20.1 and 20.2. The sheets 22.2a, 22.2b and 22.2c thus correspond to the sheets 22.2 shown in FIG. 2, except for the difference that the smaller edge 30.6 in FIG. 7 has a length of 7 cm instead of 6 cm, as is the case with the toilet paper sheets 22.2 of FIG. 2 is the case. The larger edge 28.6 has the size of the width 18, so it is about 10 cm long.

The perforation lines 20.1 and 20.2 are alternately present in the unrolling direction 19 on the strip 12.2. The

Perforation lines 20.2 have an angle 54 of 95 degrees to the left edge 56 of the strip 12.2. In contrast, the perforation lines 20.1 have an angle 58 of 105 degrees to the edge 56 and thus in the rolling direction 19. The three sheets 22.2a, 22.2b and 22.2c are shown in FIG. 8 in their perforation lines 20.1 and 20.2 folded over one another. It can be seen that the base area occupied by the three-ply toilet paper sheet 23.8 is larger than the comparable trapezoidal base area of each of the three individual sheets 22.2a, 22.2b and 22.2c. The three-ply is present in a core area of the paper 23.8, while the multi-ply decreases towards the edge of the three-ply paper 23.8. With such a paper, the fact is taken into account that the multilayer is only desired in a core area of toilet paper. The three-ply can be achieved, as a comparison of FIGS. 6 and 7 shows, with a toilet paper strip 12.2 which, like the toilet paper strip 50 known in the prior art, has the width 18 of 10 cm in the present example, but less with its three leaves needed as two of the sheets known in the prior art for its three layers.

In addition to the three-ply paper 23.8, a sheet 22.5 of the toilet paper strip 50 (FIGS. 6 and 5) is shown in dash-dot lines in FIG. 8. A floor plan area comparable to sheet 22.5 could be achieved with individual sheets 22.2a, 22.2b and 22.2c that are approximately 30 percent larger. Then the entire length of such a strip would correspond to approximately 2.5 sheets 22.5 of the strip 50. The paper savings would still be serious.

The toilet paper strips 12.10 and the four-ply sheet 23.11 shown in FIGS. 10 and 11 are also based on individual trapezoidal sheets 22.2d, 22.2e, 22.2f and 22.2g. The individual trapezoids differ from those of FIGS. 7 and 8 in that perforation lines 20.6 at an angle 60 of 80 degrees and Perforation lines 20.7 at a right angle (90 degrees) 44 - to the unrolling direction 19 are alternately present. The smaller longitudinal edge 30.8 has the length of 8 cm in the present case, while the larger longitudinal edge 28.8 of each trapezoid has the length of 10 cm and is therefore equal to the width 18 of the strip 12.8.

The four-ply sheet 23.11, which was created from the four single sheets 22.2d, 22.2e, 22.2f and 22.2g by turning over in the perforation lines 20.6 and 20.7, also has a larger footprint than each individual sheet. The outline of the individual sheet 22.5 known in the prior art is additionally shown in dash-dotted lines. Instead of the four-ply sheet, a three-ply sheet or just a two-ply sheet or even a more than four-ply sheet could also be created by folding correspondingly fewer or fewer sheets 22.2d, 22.2e, 22.2f and 22.2g.

The toilet paper strip 12.13 shown in FIG. 13 is again shown in addition to the toilet paper strip 50 known in the prior art with three individual sheets 22.2h, 22.2i and 22.2k. The three sheets 22.2h, 22.2i and 22.2k take up approximately the area of two sheets 22.5 known in the prior art, as a comparison of FIGS. 12 and 13 shows.

The strip 12.13 has only one type of perforation lines 20.8, which are arranged parallel to one another and at the same distance and each have an angle 62 of 80 degrees to the rolling direction 19 in the present case. In the present case, the constant large edge 28.8 running in the unwinding direction has a length of 10 cm and thus corresponds to the width 18 the streak 12.13. The base area of the individual sheets of this strip 12.13 thus corresponds to the base area of the toilet paper sheet 22 of FIG. 1.

The three-ply sheet 23.14 shown in FIG. 14 was created by zigzag folding the three sheets 22.2h, 22.2i and 22.2k. The cover edges are formed by the perforation lines 20.8. The base area of the three-layer sheet 23.14 in this example corresponds approximately to the base area of a sheet 22.5 known in the prior art, which is indicated by dash-dotted lines in FIG. 14. By varying the size of the angle 62 - the same applies to all exemplary embodiments - the size of the base area of the respective multilayer sheet can be influenced.

The three-layer sheet 23.14 has its three layers in an inner area, which is defined by the points B C H E. Sheet 23.14 has two layers in the triangular areas D E H and CF G. In the outer triangular

Areas A E D and C F G have sheet 23.14 in one layer. Here, too, a two-ply sheet corresponding to the state of the art is created in terms of area with a three-ply central paper area. In the predominant floor plan area of this sheet 23.14 there are also two layers.

The toilet paper strips 12.10 and 12.13 can also be present in a single toilet paper roll, hanging next to one another in parallel, side by side, via a common perforation line running in the unrolling direction 19, as has already been shown and described in connection with FIG. 4 for two strips 12.2. The arrangement of perforation strips at an angle of 90 degrees to the unrolling direction 19 has the effect that by turning over connected sheets in the. In the area of their common perforation lines, multilayer sheets can be formed, the respective base area of which is larger than the base area of the respective individual sheet. In this way, on the one hand, multilayered sheets can be created with smaller sheets compared to the prior art, which correspond in outline to the outline shape of the sheet known in the prior art, on the other hand, with sheets whose base area is equal to the base area of the sheets known in the prior art, multi-layer sheets with a larger base area compared to the prior art are produced.

Claims

EXPECTATIONS

01) Toilet paper, which as a toilet paper strip (12, 12.2, 12.3, 12.10, 12.13) on a roll (10, 10.2,

10.3, 10.4, 10.5) is wound up, the individual pieces of paper being separated from one another by lines of weakness (20, 20.1, 20.2, ^'20 .3, 20.4, 20.5, 20.6, 20.7, 20.8), characterized in that

- Lines of weakness (20, 20.1, 20.2, 20.3, 20.4, 20.5, 20.6, 20.7, 20.8) run over the paper strips (12, 12.2, 12.3, 12.10, 12.13) so that the individual pieces of paper (22, 22.2, 22.5, 22.2 a to k) are not larger than about 100 to 120 cm ² (square centimeters).

02) Toilet paper that is used as a strip of toilet paper (12,

12.2, 12.3, 12.10, 12.13) on a roll (10, 10.2,

10.3, 10.4, 10.5) is wound, the individual paper pieces being marked by lines of weakness (20, 20.1, 20.2,

20.3, 20.4, 20.5, 20.6, 20.7, 20.8) are separated from each other, that is, that

- Lines of weakness (20.1, 20.2, 20.6, 20.7, 20.8) arranged transversely to the rolling direction (19) are present at an angle (54, 58, 60, 62) that deviates from 90 degrees, based on the rolling direction (19).

03) toilet paper according to any one of the preceding claims, that a

Lines of weakness of at least one first and at least one second type are present,

the angle (54, 60, 62) for a first type of weakening line is greater than zero degrees and less than 90 degrees, - The angle (44) in a second type of weakening lines is 90 degrees.

04) Toilet paper according to claim 1 or 2, that means that

the angle (58) is greater than 90 degrees and less than 180 degrees in a first type of weakening line,

- The angle (44) in a second type of weakening lines is 90 degrees.

05) Toilet paper according to claim 1 or 2, d a d u r c h g e k e n n z e i c hn e t that

- the angle (54) for a first type of weakening line is greater than zero degrees and less than 90 degrees,

- The angle (58) is greater than 90 degrees and less than 180 degrees in a second type of weakening lines.

06) Toilet paper according to one of the preceding claims, d a d u r c h g e k e n n z e i c hn e t that

- Lines of weakness of the respective type are present parallel to each other.

07) Toilet paper according to one of the preceding claims, d a d u r c h g e k e n n z e i c hn e t that

- Lines of weakness of a first and a second type are alternately present. 08) toilet paper according to one of the preceding claims, characterized in that

- Individual pieces of paper (22) have the shape of a square.

09) Toilet paper according to one of claims 1 to 7, d a d u r c h g e k e n n z e i c h n e t that

- Individual pieces of paper (22.2, 22.2a to g) have the shape of a trapezoid.

10) Toilet paper according to claim 9, d a d u r c h g e k e n n z e i c h n e t that

- The piece of paper (22.2, 22.2a to c) in the shape of the trapezoid two parallel edges (28, 30) of about 10 cm (centimeters) and about 6 to 7 cm in length and one

Has a trapezoidal height (18) of approximately 10 cm.

11) Toilet paper according to claim 9 or 10, that means that individual pieces of paper have the shape of a trapezoid with at least two perpendicular boundary lines (30.8, 20.7; 28.8, 20.7).

12) Toilet paper according to one of claims 9 or 10, d a du r c h g e k enn z e i c hn e t that

- The individual pieces of paper (22.2) are rolled up so that the trapezoidal heights (18) of the individual pieces of paper are aligned parallel to the rolling direction (19).

13) Toilet paper according to one of claims 9 or 10, d a d u r c h g e k e nn z e i c hn e t that

- The individual pieces of paper (22.2, 22.2. a to g) are rolled up so that the trapezoidal heights (18) of the individual pieces of paper are aligned transversely to the unwinding direction (19). 14) toilet paper according to one of claims 1 to 7, characterized in that

- Individual pieces of paper (22.2h to i) have the shape of a parallelogram.

15) Toilet paper according to claim 14, d a du r c h g e k e n n z e i c hn e t that

- The individual pieces of paper are rolled up so that the heights of the parallelograms of the individual pieces of paper are aligned parallel to the unwinding direction.

16) Toilet paper according to claim 2, d a du r c h g e k e n n z e i c hn e t that

- The individual pieces of paper (22.2) are rolled up in such a way that in the unwinding direction (19) there are at least two pieces of paper (22.2) lying next to one another, which are separated from one another by a line of weakness (20.5).

17) Toilet paper according to claim 16, d a du r ch g e ke n n z e i c hn e t that

- parallel to the unrolling direction in a first and in a second paper strip (12.2, 12.2) of adjacent pieces of paper (22.2) separated from each other by weakening lines (20.1, 20.2) the trapezoidal heights (18) of these individual pieces of paper (22.2) transverse to the rolling direction ( 19) are aligned.

18) Toilet paper according to one of the preceding claims, d a du r ch g e ken n z e i c hn e t that

- Perforation lines are present as lines of weakness.