Wowen fabric product

Abstract

A woven fabric protective covering to ensure long lasting and reliable product and also reliable and easy operation when installing the covering. The woven fabric comprises a sheet layer, a reinforcement layer and at least one film layer. A plurality of strip formed weft elements and warp elements are woven together to form the sheet fabric. The sheet fabric comprises at least two different types of weaves, a basic weave for a main sheet fabric area having substantially equal number of orthogonally woven weft elements and warp elements, and a relief weave to form a fastening region where the number of warp elements per width unit is reduced when compared to the number of weft elements. The reinforcement layer is a woven band and is laminated on at least one side of the sheet layer. The reinforcement layer comprises openings for fastening the product when in use. At least one film layer is laminated on the sheet layer.

Claims

1. A woven fabric product comprising: a sheet layer wherein a plurality of strip formed weft elements and warp elements are woven together to form a sheet fabric, a reinforcement layer that is a woven band comprising openings for fastening the product when in use; and at least one film layer laminated on the sheet layer, wherein, the reinforcement layer is laminated on at least one side of the sheet layer and the sheet fabric comprises at least two different type of weaves: a basic weave for a main sheet fabric area having substantially equal number of orthogonally woven weft elements and warp elements, and a relief weave to form a fastening region where number of warp elements per width unit is reduced when compared to number of weft elements.

2. The woven fabric product of claim 1, wherein the weft elements in the relief weave are continuous from the basic weave to the relief weave.

3. The woven fabric product of claim 1, wherein in the relief weave ratio of the number of warp elements to the number of weft elements is between 3/10 and 8/10 such that there is a blank space instead of warp element on 7 out of 10 positions to 2 out of 10 positions.

4. The woven fabric product of claim 3, wherein in the relief weave the ratio of the number of warp elements to the number of weft elements is , such that there is a blank space next to a warp element.

5. The woven fabric product of claim 3, wherein the warp elements are woven in the fastening regions.

6. The woven fabric product of claim 3, wherein one or more blank spaces is/are aligned with the openings of the reinforcement layer.

7. The woven fabric product of claim 3, wherein number of blank space patterns correspond with number of opening rows in weft direction.

8. The woven fabric product of claim 1, wherein the sheet fabric further comprises one or more relief woven fastening regions.

9. The woven fabric product of claim 8, wherein the relief woven fastening regions are on both edge areas of the sheet fabric.

10. The woven fabric product of claim 8, wherein the relief woven fastening regions are on both edge areas of the sheet fabric and on one or more middle areas of the sheet fabric.

11. The woven fabric product of claim 1, wherein the film layer is laminated on both sides of the sheet layer.

12. The woven fabric product of claim 1, wherein the film layer is extrusion coated and laminated on the sheet layer to form an impermeable structure.

13. The woven fabric product of claim 1, wherein the weave of reinforcement layer is different from basic weave.

14. The woven fabric product of claim 13, wherein the weave of reinforcement layer is denser than the basic weave.

15. The woven fabric product of claim 1, wherein thickness of the reinforcement layer is different from sheet layer.

16. The woven fabric product of claim 15, wherein the reinforcement layer is thicker than the sheet layer.

17. The woven fabric product of claim 1, wherein the openings of the reinforcement layer are heat finished to restrain a tear to start from the opening when in use.

18. The woven fabric product of claim 1, wherein a structure at the opening is impermeable.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG. 1 illustrates a general overview of an embodiment of the product,

[0027] FIG. 2 illustrates a schematic cross section at the fastening region,

[0028] FIG. 3 illustrates an embodiment of the basic weave,

[0029] FIGS. 4 to 7 illustrates some embodiments of relief weaves,

[0030] FIGS. 8 to 10 illustrates some embodiments of fabric products.

DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION

[0031] In FIG. 1 a general overview of an embodiment where woven fabric product 1 comprises [0032] a sheet layer 2 wherein a plurality of strip formed weft elements and warp elements are woven together to form a sheet fabric (weft elements and warp elements are not shown in FIG. 1), [0033] a reinforcement layer 3 that is a woven band comprising openings 31 for fastening the product when in use, [0034] the reinforcement layer 3 is laminated on at least one side of the sheet layer 2. The sheet fabric comprises main sheet fabric area 25 and one or more relief woven fastening regions 28, preferable there are relief woven fastening regions 28 on both edge areas 20 of the sheet fabric and optionally one or more relief woven fastening region in the middle area as shown in the embodiment of FIG. 1. The strips used as weft elements and warp elements for weaving the fabric may be for example polypropylene, high density polyethylene, or like.

[0035] In FIG. 2 it is illustrated a schematic cross section of an embodiment of the product at the fastening region, such as along cross section Z-Z shown in FIG. 1. The structure of the product can be as following. The sheet layer 2 is in the middle, and the film layer 4 is laminated on both sides of the sheet layer 2. On one side of the sheet layer 2 is attached or laminated the reinforcement layer 3. It is laminated on at least one side of the sheet layer 2, thus the structure can be also two sided so that there are two reinforcement layers, one on both sides of the sheet layer 2. The film layer 4 is preferably extrusion coated and laminated on the sheet layer 2 to form an impermeable structure. The film layer may also be laminated over the reinforcement layer 3. Possible materials for the film layer are among many materials for example LDPE and lamination grade PP. In the reinforcement layer 3 there are openings 31 for fastening the product when in use. Relief weave 27 and basic weave 24 are shown schematically here, as illustrated with different style of hatching in FIG. 2.

[0036] Continuing with FIG. 2, preferably the weave of reinforcement layer 3 is different to basic weave 24, preferable the thickness of the reinforcement layer 3 is different to sheet layer 2, preferable the reinforcement layer 3 is thicker than the sheet layer 3. It can be also so, that the weave of reinforcement layer 3 is denser than the basic weave 24 (this is not shown in FIG. 2). The openings 31 of reinforcement layer 3 are preferably heat finished to restrain a tear to start from the opening 31 when in use.

[0037] In FIGS. 3 to 7 a warp direction x is vertical and a weft direction y is horizontal. For keeping the figures readable, only a few elements are numbered. In FIG. 3 it is illustrated a normal pattern for basic weave 24. It is fabric wherein a plurality of strip formed weft elements 21 and warp elements 22 are woven together to form a sheet fabric. The pattern embodiment shown in FIG. 3 is fully woven, thus there are weft 21 and warp 22 in each vertical (warp) and horizontal (weft) positions.

[0038] In FIG. 4 it is illustrated an embodiment of relief weave 27. It is a fabric wherein the number of warp elements 22 in the relief weave 27 is reduced to half, thus there is a blank space 23 next to a warp element 22.

[0039] In FIGS. 5 to 7 other embodiments are shown. In general the weft elements 21 in the relief weave are continuous from the basic weave to the relief weave and in these embodiments it is shown so that the weft elements 21 are in all positions, but the number of warp elements 22 may vary and be replaced by a blank space 23. A number of warp elements 22 in the relief weave 27 is reduced to a number between 3/10 to 8/10 compared to the number of weft elements 21. And the other way around, there is a blank space 23 instead of a warp element 22 on 7 out of 10 positions to 2 out of 10 positions. In FIG. 5 there are one warp element 22 and two positions of blank spaces 23. In FIG. 6 there are one warp element 22 and three positions of blank spaces 23. In FIG. 7 there are two warp elements 22 and two blank spaces 23.

[0040] In FIGS. 8 to 10 still some embodiments of the woven fabric product is shown. In the woven fabric product 1 the sheet fabric comprises main sheet fabric area 25 and one or more relief woven fastening regions 28, preferable there are relief woven fastening regions 28 on both edge areas 20 of the sheet fabric and optionally one or more relief woven fastening region 28 in the middle area. In the embodiment of FIG. 1 there is one row of openings 31 in the reinforcement layer while FIGS. 8 and 10 shows double row of openings 31 in the edge areas 20 and single row of openings 31 in the middle area. However this is matter of design, there are several possibilities to arrange these rows of openings 31 in the reinforcement layer. The spacing or pitch of the product can be for example the following (from left to right): edge (basic weave) 4.5 cm, reinforcement layer 14 cm, main sheet fabric 78 cm, middle reinforcement layer 7 cm, again main sheet fabric 78 cm, reinforcement layer 14 cm and 4.5 cm edge on the right. Also other dimensions can be used as well, such as 73 cm and 93 cm main sheet fabric area widths as an example.

[0041] Variations and modifications to the embodiments described above are possible without departing from the scope of the amended claims. For example, instead of polyester strips, the basic fiber material could be . . . , (e.g) or other material suitable for the operating coverings in different temperatures depending on the location of the use of the product.

REFERENCE SIGNS USED IN FIGURES

[0042] 1 woven fabric product [0043] 10 edge area [0044] 15 fastening [0045] 2 sheet layer [0046] 20 sheet edge area [0047] 21 weft element [0048] 22 warp element [0049] 23 blank space [0050] 24 basic weave [0051] 25 main sheet fabric area [0052] 27 relief weave [0053] 28 fastening region [0054] 3 reinforcement layer [0055] 4 film layer [0056] x warp direction [0057] y weft direction