FLAME-PROOF COVERING INTENDED FOR WALLS AND OTHER SURFACES AND A METHOD FOR THE MANUFACTURE OF THE SAME

Abstract: A flame-proof covering intended for walls and other surfaces. The covering is easy to manufacture and handle. A wallpaper (9) which exhibits a carrier (10), preferably of fibrous material such as paper, carries a number of glass fibre threads (2), which, on the sides (2A, 2B) which face towards and away the carrier (10), are in contact with a flame-proof layer (14, 23), in which case a number of said layers (14, 23) may be pigmented. The invention also relates to a method for manufacturing the aforementioned product.

Description: Flame-proof covering intended for walls and other surfaces and a method for the manufacture of the same. In previous attempts to produce flame-proof wall surfaces, etc., through the use of wall coverings for said purpose, these were found to be costly to manufacture and difficult to handle when putting up, and required lengthy treatment in conjunction with their preparation, since it was necessary, amongst other things, to wait for a full day before painting over them. These are some of the reasons why glass fibre materials have accounted for a very small proportion of the products available on the ordinary consumer market. Glass fibre products are instead used to an overwhelming extent in the public sector, where there has been good access to skilled staff. The principal object of the present invention is thus primarily to attempt to solve said problems. Said object is achieved by means of a covering such as is defined in Patent Claim 1 and which is characterized essentially in that a wallpaper, which exhibits a carrier, preferably of fibrous material such as paper, carries a number of glass fibre threads, which, on the sides which face towards and away from the carrier, are in contact with a flame—proof layer, in which case a number of said Layers may be pigmented. The invention also relates to a method for manufacturing a covering of said kind in an efficient and simple fashion. Said method is characterized essentially in that a number of glass fibre threads is attached to a carrier intended to form a wallpaper, consisting preferably of paper or some other suitable fibrous material, by means of a flame-proof layer of a bonding agent, and in that, externally along the threads on that side of same which faces away from the carrier, a flame-proof outer layer is applied, in which case said outer layer may appropriately be caused to contain a colour pigment. The invention is described below in the form of a preferred illustrative embodiment, in conjunction with which reference is made to the following drawings, of which: <≤5^ Fig. 1 is a diagrammatic representation of different stages in the manufacture of a covering according to the invention; Fig. 2 shows a transverse section through a manufactured covering; Fig. 2A shows on an enlarged scale a part of the covering; and Fig. 3 shows a typical pattern of a manufactured covering. From bobbins 1, for example, or other storage rollers which have wound onto them glass yarn 2 made from glass fibre material, the fibre yarn threads 2 in question are fed in such a way that, once they have been deflected, if necessary, around deflectors 3 in the direction of the arrows 4, from a first station I, they can be routed in parallel in relation to bne another in the direction of feed by being deflected around further deflector devices 5 at a second station II. The threads 2 are then fed in the direction of the arrow 6, after having been compressed between rollers 7, 8, for example, to a third station III. The operations performed at this station III include the attachment of threads 2 to a carrier 10 for the proposed covering 9 according to the invention executed as wallpaper. Said carrier 10 should preferably be made of a fibrous material such as paper, and may exhibit the form of an extended strip which is wound so as to form a roll 11, from which it can be fed in the direction of the arrow 12 to a consolidating device 13. Before arriving at, or on passing through the device 13, the carrier 10 is intended to receive a coating of a securing layer 14, consisting of a bonding agent, which exhibits the ability to be flame-proof and which may also be pigmented as appropriate with the desired colour. For example, a container 15 may, for the purpose of forming said securing layers in a dried and/or cured state, contain the intended substance 16 in a non—hardened state, and which may be applied, for example, to the carrying strip 10 preferably along the entire length of one of its side surfaces 10A, by means of a roller 17, which runs in said container 15 and substance 16. As it is deflected around a roller 18, etc., in the arrangement 13 for the strip 10 and the threads 2, the threads 2 are applied to the base layer 14 of the adhesive coated along the strip 10. As it subsequently passes through a nip between, for example, said roller 18 and a press roller 19 operating in conjunction with same in the direction of the arrow 20, the threads 2 are compressed in such a way that they are pressed with their sides 2A facing the carrier 10 down into the as yet unhardened or uncured base layer 14, which is intended, in addition to serving for attachment purposes and as a flame guard for the manufactured wallpaper 9, also to produce a background colour effect in the wallpaper 9, depending on whether the layer 14 is pigmented with the intended colour. The strip 10 is then allowed to dry/cure with the threads applied to it, said threads being shown in the example illustrated to run to all intents and purposes parallel in relation to one another and essentially in the same direction as the longitudinal sense of the strip, but naturally also being free to exhibit a different direction. Drying/curing may take place at a subsequent fourth station IV, which may exhibit an appropriate number of winding rollers 21, 22, etc., around which the manufactured wallpaper 9 is wound, for example in a heating oven. At a fifth and subsequent station V, a flame— roof surface coating 23, preferably also pigmented in the desired colour, is applied along that side 2B of the threads 2 attached to the carrier 10 which face in a direction away from the carrier 10. Said outer layer 23 may be appLied to the threads 2 by the use of a scraping action on the layer 23, such that only the outer sides 2B or the raised parts of the threads which project up out of the base layer 14 are coated with said outer layer 23, whereby a coloured effect of the threads 2 is achieved against the background of any underlying colour of the base layer 14. Another method for the application of the outer layer 23 is also permissible, for example by the use of a roller, etc. Said outer layer is then also allowed to dry in a suitable fashion, whereupon the strip of wallpaper 9, which is moving in the direction of the arrow 24, is conveyed for subsequent general wallpaper processing operations, such as rolling and cutting, etc. The covering manufactured in the form of a wallpaper 9, which is suitable for attachment to walls and other surfaces of an appropriate, kind, can be hung on a wall, for example, in the customary fashion, as in the case of conventional wallpapers, thus enabling a flame—proof covering of the desired colour to be provided by the simple and rapid installation of the desired wallpaper 9, which can even be done by persons without full training. The invention is not restricted to the illustrative embodiment described above and shown in the drawings, but may be modified within the scope of the following Patent Claims without departing from the idea of invention. For example, threads may be juxtaposed with strips of glass fibre material.

Claims: P a t e n t C l a i m s 1. Flame-proof covering intended for walls and other surfaces, c h a r a c t e r i z e d in that a wallpaper (9 ) which exhibits a carrier (10), preferably of fibrous material such as paper, carries a number of glass fibre threads (2), which, on the sides (2A, 2B) which face towards and away from the carrier (10) are in contact with a flame—proof layer (14, 23), in which case a number of said layers (14, 23) shall be pigmented. 2. Wall covering according to Patent Claim 1, c h a r a c t e r i z e d in that between the carrier (10) and the threads ( 2) there is present a flame—proof securing layer (14) of a bonding agent which is pigmented in such a way as to achieve a coloured background effect on the wallpaper (9). 3. Wall covering according to any of the preceding Patent Claims, c h a r a c t e r i z e d in that above (2B) the threads (2) there is installed a flame-proof pigmented outer layer (23) facing away from the carrier (10). 4. Wall covering according to any of the preceding Patent Claims, c h a r a c t e r i z e d in that glass fibre threads (2) are formed by bundles of threads made of glass yarn which extend essentially along the Longitudinal direction of the wallpaper at a certain distance from one another, measured in the transverse direction of the threads. 5. Method for the manufacture of a flame—proof covering for walls and other surfaces according to any of the preceding Patent Claims, c h a r a c t e r i z e d in that a number of glass fibre threads (2) is attached to a carrier intended to form a wallpaper, consisting preferably of paper or some other suitabLe fibrous material, by means of a flame-proof Layer (14) of a bonding agent, and in that, externally along the threads on that side (2B) of same which faces away from the carrier (10), a flame—proof outer layer (23) is applied, in which case case said outer Layer (23) may appropriately be caused to contain a colour pigment. 6. Method according to Patent Claim 5, c h a r ¬ a c t e r i z e d in that the carrier (10) is coated with a pigmented, flame—proof bonding agent (14) suitable for the attachment of glass fibre threads (2), said agent being so arranged, in addition to serving an attachment function and as a flame guard, as to produce a background colour effect in the wallpaper (9). 7. Method according to Patent Claim 6, c h a r ¬ a c t e r i z e d in that glass fibre threads (2) which can be unwound from rolls (1) and can be routed in parallel in the area ahead of the point at which the threads 82) are applied to the carrier (10), viewed in the direction of feed of the threads and the carrier, are pushed down into the bonding agent (14). 8. Method according to Patent Claim 7, c h a r — a c t e r i z e d in that, after drying the bonding agent (14) applied to the carrier (10), the flame—proof, pigmented outer layer (23) is applied to the threads (2) in such a way that only outer threads (2B) or the raised parts of the threads (2) are coated with said outer layer (23). 9. Method according to Patent Claim 8, c h a r ¬ a c t e r i z e d in that said pigmented outer layer (23) is applied to the threads (2) by means of a scraping action.

Inventors: FRANSSON BILL, FRANSSON, BILL
Applicants: FRANSSON BILL, FRANSSON, BILL
Application year: 1985
Main classification: D06N7
IPC codes: D06N7