WRAPPING MATERIAL ROLL AND METHOD FOR PRODUCTION THEREOF

Abstract

A wrapping material roll includes a flexible sheet having a length and a width. The sheet is rolled concentrically about an axis parallel to the direction of the width such that a longitudinal end of the sheet is located along a circumferential side of the wrapping material roll. At least a part of the longitudinal end is folded along a folding line over at least part of the width.

Claims

1. A wrapping material roll comprises: a flexible sheet having a length and a width, and an outer and an inner surface, wherein the sheet is rolled concentrically about an axis substantially parallel to the direction of the width such that the outer surface faces is facing radially outwards with respect to the axis, the inner surface faces radially inwards with respect to the axis, and a longitudinal end of the sheet is located along a circumferential side of the wrapping material roll, wherein at least a part of the longitudinal end is folded along a folding line over at least part of the width toward the inner surface of the sheet.

2. The wrapping material roll according to claim 1, wherein the folding line is arranged over at least 50 percent of the width.

3. The wrapping material roll according to claim 1, wherein the folding line is arranged at an acute folding angle with respect to the width direction.

4. The wrapping material roll according to claim 3, wherein the folding line is arranged to extend circumferentially over at least 30 percent of the circumferential side.

5. The wrapping material roll according to claim 3, wherein the folding angle is between 3 and 45 degrees.

6. The wrapping material roll according to claim 1, wherein the longitudinal end comprises a longitudinal edge along the circumferential side, and wherein the folding line is arranged to extend from a folding point along the longitudinal edge to a lateral edge of the sheet.

7. The wrapping material roll according to claim 6, wherein the folding point is located centrally with respect to the width of the sheet.

8. The wrapping material roll according to claim 1, comprising a seal, wherein the seal is configured to secure the longitudinal end to the outer surface of the rolled sheet; and/or wherein the seal comprises an adhesive surface arranged to secure the longitudinal end to the outer surface of the rolled sheet; and/or wherein the seal comprises a wrapper provided around the rolled sheet.

9-10. (canceled)

11. The wrapping material roll according to claim 6, wherein a first part of the longitudinal end is folded along a first folding line extending to a first lateral edge of the sheet, and wherein a second part of the longitudinal end is folded along a second folding line arranged to extend from a folding point along the longitudinal edge to a second lateral edge of the sheet opposite to the first lateral edge.

12. The wrapping material roll according to claim 11, wherein the folding lines are arranged to extend from the same folding point along the longitudinal edge such that the longitudinal end is V-shaped; or wherein the first folding line is arranged to extend from a first folding point along the longitudinal edge, wherein the second folding line is arranged to extend from a second folding point along the longitudinal edge, and wherein the first folding point and the second folding point are spaced apart such that the longitudinal end is U-shaped.

13. (canceled)

14. The wrapping material roll according to claim 11, wherein the first folding line is arranged at a first acute folding angle with respect to the width direction, wherein the second folding line is arranged at a second acute folding angle with respect to the width direction.

15. The wrapping material roll according to claim 14, wherein the first folding angle and the second folding angle differ.

16. The wrapping material roll according to claim 14, wherein the first folding angle is equal to the second folding angle.

17. The wrapping material roll according to claim 1, wherein the folding line is arranged over less than 100 percent of the width.

18. A method for producing a wrapping material roll, wherein the method comprises the steps of: providing a flexible sheet having a length and a width, and an inner surface and an outer surface; folding at least a part of a longitudinal end of the sheet along a folding line over at least part of the width toward the inner surface of the sheet; rolling at least a part of the sheet concentrically about an axis parallel to the direction of the width such that the outer surface is facing radially outwards with respect to the axis, the inner surface is facing radially inwards with respect to the axis, and the longitudinal end is located along a circumferential side of the rolled sheet.

19. The method according to claim 18, wherein the step of rolling at least part of the sheet comprises rolling the sheet, apart from the longitudinal end, prior to the step of folding at least part of the longitudinal end, wherein the method further comprises the step of rolling the folded longitudinal end about the axis.

20. The method according to claim 18, wherein the step of providing the sheet comprises providing the sheet rolled concentrically about the axis, wherein the method further comprises the step of unrolling at least the longitudinal end prior to the step of folding the longitudinal end.

21. The method according to claim 18, further comprising the step of positioning the rolled sheet with respect to a predefined axis prior to the step of folding the longitudinal end, and optionally wherein the step of positioning comprises aligning the rolled sheet with the predefined axis.

22. (canceled)

23. The method according to claim 18, further comprising the steps of detecting a position and/or orientation of the longitudinal end and moving the longitudinal end to a predefined position and/or orientation on the basis of the detected position and/or orientation prior to the step of folding the longitudinal end.

24. The method according to claim 18, wherein the step of folding the longitudinal end comprises the steps of flipping part of the longitudinal end about the folding line and pressing along the folding line; and/or further comprising the steps of providing a seal and securing the folded longitudinal end to the outer surface of the rolled sheet using the seal.

25-26. (canceled)

Description

[0034] The present invention is hereafter elucidated with reference to the attached drawings, wherein:

[0035] FIG. 1 shows a roll of wrapping material;

[0036] FIG. 2 shows a partially unrolled wrapping material roll;

[0037] FIGS. 3-7 show various folding configurations for a longitudinal end of a partially rolled sheet of wrapping material.

[0038] Throughout the figures, like elements are referred to using like reference numerals.

[0039] In FIG. 1 an embodiment of a roll of a wrapping material packaging 1 is depicted. The wrapping material packaging 1 comprises a sheet 10 rolled concentrically about an axis R such that a longitudinal end 20 of the sheet 10 is located along a circumferential side 11 of the wrapping material roll 1. The dimension indicative for the length of the circumference of the roll is indicated by C. A seal 30 is used to secure the longitudinal end 20 to the circumferential side 11.

[0040] In FIG. 2 a sheet 10, in particular the longitudinal end 20 thereof, is partially unrolled. The sheet 10 is dimensioned as having a length L and a width W in respectively a longitudinal and a lateral direction. The axis R about which the sheet 10 is rolled is parallel to the direction of the width W of the sheet 10.

[0041] The sheet 10 is rolled such that, when rolled, an outer surface 12 of the sheet 10 is facing radially outwards with respect to the axis R and the inner surface 13 is facing radially inwards with respect to the axis R.

[0042] In FIG. 3 at least a part of the longitudinal end 20 is folded along a folding line 20a over at least part of the width W toward the inner surface 13 of the sheet 10. The extent of the folding line 20a in the length direction (as indicated by L in FIG. 2) is indicated by F. The folding line 20a is at a folding angle ? with respect to the width W direction. When the sheet 10 is fully rolled, as represented in FIG. 1, the folding line 20a extends circumferentially over all of the circumferential side 11, as indicated by F with respect to the length of the circumference C indicated in FIG. 3 for illustration.

[0043] The folding line 20a in FIG. 3 extends from a folding point 20b along a longitudinal edge 14 of the longitudinal end 20 to a lateral edge 15 of the sheet 10. Although in FIG. 3 the folding point 20b is shown to be located centrally with respect to the width W of the sheet 10, i.e. at equal distances d1, d2 from the lateral edges 15, 16 of the sheet 10, the folding point 20b may be alternatively located adjacent, or even coincide with, one of the lateral edges 16, as shown in FIG. 6.

[0044] In FIG. 4, a first part 21 of the longitudinal end 20 is folded along a first folding line 21a extending from the longitudinal edge 14 to the first lateral edge 15 of the sheet 10. A second part 22 of the longitudinal end 20 is folded along a second folding line 22a extending from the longitudinal edge 14 to the second lateral edge 16. The first folding line 21a is arranged at a first folding angle ?1 with respect to the width W direction and the second folding line 22a is arranged at a second folding angle ?2 with respect to the width W direction. The first folding angle ?1 is shown equal to the second folding angle ?2. Alternatively, the folding angles ?1, ?2 may differ. In both cases, the extent of the folding lines in the length L direction (indicated by F in FIG. 3) may be equal. The folding lines 21a, 22a extend from a single folding point 20b along the longitudinal edge 14 such that the longitudinal end is V-shaped. In the folding configuration shown in FIG. 5, the first folding line 21a extends from a first folding point 21b along the longitudinal edge 14 and the second folding line 22a extends from a second folding point 22b along the longitudinal edge 14, wherein the first folding point 21b and the second folding point 22b are spaced at a distance d3 such that the longitudinal end 20 is U-shaped.

[0045] A further preferred embodiment is shown in FIG. 7. Two parts 21, 22 of the longitudinal end 20 are folded along respective folding lines 21a, 22a at equal folding angles ?1, ?2. The folding lines 21a, 22a extend from respectively a first folding point 21b at a first distance d1 from a first lateral edge 15 of the sheet 10 and a second folding point 22b at a second distance d2 from a second lateral edge 16 of the sheet, wherein the distances d1, d2 differ. Furthermore, the folding points 21b, 22b are spaced at a distance d3. The folding lines 21a, 22a extend over differing lengths of the sheet 10, indicated respectively by F1 and F2.

[0046] The above description of the attached drawings is provided merely for illustrative purposes to contribute to comprehension of the present invention, and is not intended to limit the scope of the appended claims in any way or form.