Abstract: Apparatus for bonding at least two plies of fibrous web, includes: a first roller having an outer periphery, a plurality of embossing protuberances being provided on the outer periphery, such first roller being an embossing roller; and a second roller having an outer periphery and being elastic at least in a radial direction and together with the first roller forming a nip through which the at least two plies are be fed, such second roller being a counter roller or a marrying roller, wherein at least a part of the outer periphery of at least one of the first and the second roller is irregularly rough so that the at least two plies are bonded at discrete locations corresponding to at least some of the embossing protuberances. A multi-ply product including the bonded plies and a corresponding method are also described.

Abstract: A hygiene or wiping product includes at least one ply of a fibrous web containing cellulose fibers and having a graphical pattern of at least first and second areas. The ply contains a coloring compound providing a coloration of the ply in the first area. The coloring compound is at least partly chemically destroyed in the second area so that the ply is less colored in the second area than in the first area. A method for producing such a ply includes the steps of providing a fibrous web containing a coloring compound, which provides a uniform coloration in at least a portion of the web, and applying a bleaching agent to a part of the colored portion of the web to at least partly decolor the web in the part generating a pattern of at least first colored and second less colored areas.

Abstract: Apparatus for bonding at least two plies of a fibrous web, includes: a first roller having an outer periphery, at least one embossing protuberance provided on the outer periphery; and a second roller having an outer periphery and being elastic at least in a radial direction, the second roller including at least an inner layer and an outer layer that is harder than the inner layer, the second roller together with the first roller forming a nip through which the two plies are to be fed, wherein an embossing element is located on top of at least one of the embossing protuberance(s), an embossing area of each embossing element being smaller than an embossing area of the corresponding embossing protuberance(s) so that the two plies are bonded at discrete locations corresponding to the first and second embossing elements. Multi-ply product including the bonded plies and corresponding method are also described.

Abstract: A fibrous product includes at least one top ply with an embossing pattern forming pillow-like chambers at least partially surrounded by first embossing protuberances; at least one middle ply embossed in register with the at least one top ply so that second embossing protuberances of the at least one middle ply nest into the pillow-like chambers of the at least one top ply; and at least one bottom ply in register with the at least one top ply and the at least one middle ply being bonded to both the at least one top ply and the at least one middle ply at bonding regions. The at least one bottom ply includes non-embossed areas and embossed areas provided with a micro-embossing pattern, whereby the unembossed areas of the bottom ply are in register with the top ply and the middle ply.

Abstract: A fibrous product, especially tissue paper product, non-woven product or a hybrid thereof, includes at least one top ply with either an embossing pattern forming pillow-like chambers at least partially surrounded by first embossing protuberances or with second embossing protuberances; at least one middle ply embossed in register with the at least one top ply so that either second embossing protuberances of the at least one middle ply nest into the pillow-like chambers of the at least one top ply or second embossing protuberances of the at least one top ply nest into the pillow-like chambers at least partially surrounded by first embossing protuberances of the at least one middle ply; and at least one bottom ply not in register with the at least one top ply and being bonded to both the at least one top ply and the at least one middle ply.

Abstract: A device for producing a multi-ply fibrous product includes an embossing roll with first and second embossing protrusions on its outer circumferential surface having at least two different heights in a radial direction, an anvil roll cooperating with the embossing roll, an application roll for applying colored adhesive or ink arranged next to the embossing roll, and a marrying roll or another embossing roll running against the embossing roll, wherein the application roll forms a negative gap with the outer diameter of the embossing roll, and the negative gap exceeds the difference in height of the first and second protrusions. A method for producing a multi-ply fibrous product and a multi-ply fibrous product are also described.

Abstract: Apparatus for bonding at least two plies of fibrous web, includes: a first roller having an outer periphery, a plurality of embossing protuberances being provided on the outer periphery, such first roller being an embossing roller; and a second roller having an outer periphery and being elastic at least in a radial direction and together with the first roller forming a nip through which the at least two plies are be fed, such second roller being a counter roller or a marrying roller, wherein at least a part of the outer periphery of at least one of the first and the second roller is irregularly rough so that the at least two plies are bonded at discrete locations corresponding to at least some of the embossing protuberances. A multi-ply product including the bonded plies and a corresponding method are also described.

Abstract: Apparatus for bonding at least two plies of a fibrous web, includes: a first roller having an outer periphery, at least one embossing protuberance provided on the outer periphery; and a second roller having an outer periphery and being elastic at least in a radial direction, the second roller including at least an inner layer and an outer layer that is harder than the inner layer, the second roller together with the first roller forming a nip through which the two plies are to be fed, wherein an embossing element is located on top of at least one of the embossing protuberance(s), an embossing area of each embossing element being smaller than an embossing area of the corresponding embossing protuberance(s) so that the two plies are bonded at discrete locations corresponding to the first and second embossing elements. Multi-ply product including the bonded plies and corresponding method are also described.

Abstract: A hygiene or wiping product includes at least one ply of a fibrous web containing cellulose fibers and having a graphical pattern of at least first and second areas. The ply contains a coloring compound providing a coloration of the ply in the first area. The coloring compound is at least partly chemically destroyed in the second area so that the ply is less colored in the second area than in the first area. A method for producing such a ply includes the steps of providing a fibrous web containing a coloring compound, which provides a uniform coloration in at least a portion of the web, and applying a bleaching agent to a part of the colored portion of the web to at least partly decolor the web in the part generating a pattern of at least first colored and second less colored areas.

Abstract: A method of manufacturing a hygiene product, includes the steps of providing at least a first web (1) and a second web (2), pre-treating the first web and/or the second web, embossing the first web with a décor embossing pattern in a first décor embossing zone (38) having a décor embossing roll (34), and laminating together the first web and the second web in a lamination zone (30), the lamination zone being defined between the décor embossing roll and a lamination roll (36), wherein the décor embossing roll and the lamination roll have a generally-equal surface hardness.

Abstract: Adhesive (a1, a2) as a pattern of deposits is applied on both sides of a hydrophilic spunbond non-woven inner ply (B) of low grammage and no or low adhesion ability. Together with this inner ply (B) a three ply planar absorbent product is made with tissue outer plies (A,C) by exerting pressure on the adhesive such that the adhesive penetrates through the inner ply (B) for achieving ply bonding between the inner ply (B) and the opposite outer ply (C). The different adhesive patterns do not disturb each other because they do not coincide.

Abstract: A device for applying a spot embossing pattern to a web of multi-ply tissue paper being processed in a paper converting machine comprises a marrying roll and a spot embossing unit cooperating and being positioned against the marrying roll. The spot embossing unit comprises a spot embossing roll with a raised embossing pattern on its circumferential surface. The at least two plies of tissue web are combined with a marrying roll and pass between the marrying roll and the spot embossing unit.

Abstract: A device for applying a spot embossing pattern to a web of multi-ply tissue paper being processed in a paper converting machine comprises a marrying roll and a spot embossing unit cooperating and being positioned against the marrying roll. the spot embossing unit comprises a spot embossing roll with a raised embossing pattern on its circumferential surface. The at least two plies of tissue web are combined with a marrying roll and pass between the marrying roll and the spot embossing unit.

Abstract: The invention relates to a method and a device for achieving adhesion between layers of tissue paper, according to which a surface structure corresponding to that of sandpaper is pressed into the product along the side of at least one roller when the individual layers are joined in a roll nip. This results in good adhesion between layers with only minor optical impairment of the product surface and without the use of glue or such like.

Abstract: A device for ply-bonding tissue products comprising first conveying means for a first single/multi-ply tissue web; as well as a roll pairing (22, 30; 22, 28), one roll of which is an embossing roll (22; 28); and one of the two rolls (22; 28) has spikes (26) on the shell surface cooperating with a companion roll (30; 28; 22) of high rubber hardness. The two rolls are adapted in location and length of the spikes (26) so that the spikes perforate both the first tissue web (14) and the second tissue web (16) in the nip of the roll pairing.