Abstract:
A device for embossing and laminating a multiple-web web material, comprising: a first and second embossing cylinder (1, 3), provided with tips and arranged with parallel and adjacent axes so as to farm a nip (G) between them; a pair of pressure rollers, (5, 7), each of which cooperates with one of the embossing cylinders; an adhesive applicator (17) associated with the first embossing cylinder; and a laminating roll (13) arranged downstream of the nip (G) between the embossing cylinders (1, 3) and cooperating with the first embossing cylinder (1). Planes (P3, P5) contain axis (1A, 3A) of each embossing cylinder (1, 3) and the axis (5A, 7A) of the corresponding pressure roll (5, 7) are both inclined with respect to the plane. (P2) containing the axes (1A, 3A) of the embossing cylinders at an angle different from 0 and 90 degrees.
Abstract:
The embossing roller has a plurality of embossing protuberances (P3), each of which has a base (41), a side surface (45) and a head surface (43). The side surface (45) of at least some of the embossing protuberances (P3) has variable inclination along the perimeter extension of the protuberance.
Abstract:
The method for realising multi-ply embossed paper comprises following stages: passing a first sheet (1) through a first embossing roller (10), perimetrally provided with a first embossing die (11), in order to perform a first embossing operation (A) in cooperation with a counter-rotating first presser roller (12); passing a second sheet (2) through a second embossing roller (20) perimetrally provided with a second embossing die (21) in cooperation with a counter-rotating second presser roller (22), in order to perform a second embossing operation (B); further passing the first sheet (1) through a third embossing roller (15), providing with a third embossing die (16), in order to perform on the first sheet (1) a further embossing operation (C) in cooperation with a counter-rotating third presser roller (17); coupling embossed relief surfaces of the first sheet (1) and the second sheet (2) and joining the first sheet (1) and the second sheet (2) using coupling means (40) arranged downstream of the third presser roller (17), in order to obtain a corresponding multi-ply embossed paper (3).
Abstract:
An apparatus (1) and method for producing embossed paper or laminated metallic foil sheets (55) comprising means for feeding an elongate strip (20) of paper or laminated metallic foil, a pair of matched embossing rollers (5, 10) disposed to receive such a strip from the feeding means, and means for receiving such a strip from the embossing rollers after being embossed thereby, and for cutting such strip into sheets. The rollers have a plurality of embossing sectors (75) arranged on the surface thereof. At least one of the sectors imparts a first embossing, and at least another of the sectors imparts an alternate embossing different in appearance from the first embossing. The sectors are dimensioned similarly to the foil sheets. At least one group of the sheets carry the first embossing while at least another group of the sheets carry the alternate embossing.
Abstract:
The embossing device comprises at least one embossing roller (3) and at least one counter-roller (5) cooperating with said embossing roller. The embossing roller comprises an interchangeable sleeve (19) which can be constrained to two heads (13, 15) which engage the sleeve at the ends thereof.
Abstract:
Convertible embossing device comprising a structure (1) with two fixed sides (10) and two mobile sides (11) with respective external faces (EF, EM) and internal faces (IF, IM) and provided with, in correspondence of the respective internal faces (IF, IM), two upper recesses (12, 13) and two lower recesses (12’, 13’) with a circle-arc profile intended to support the end flanges (20, 30) of the two embossing rolls (2, 3) orthogonal to the sides (10, 11) of the same structure (1), wherein the mobile sides (11) are joined to the fixed sides (10) and connected to corresponding handling means (5). In a first operating position, the mobile sides (11) are approached to the fixed sides (10) and the respective upper and lower recesses (12, 13, 12’, 13’) define, by cooperating with one another, two pairs of circular seats for the flanges (20, 30) of said rolls (2, 3), and in that, in a second operating position, the mobile sides (11) are distanced from the fixed sides (10) and the upper recesses (12, 13) of said sides (10) and (11) define, each one by cooperating with corresponding semi-circular closure flanges (15, 16), two pairs of circular seats for the flanges (20, 30) of said rolls (2, 3).
Abstract:
A device is provided to produce an embossed multi-ply material, comprising: a first embossing-laminating unit (3) comprising a first embossing cylinder (5) equipped with first projections (5P) defining a first pattern, a first pressure roller (7) cooperating with said first embossing cylinder (5), a first laminating roller (9) and a first glue dispenser (11), disposed between said first pressure roller (7) and said first laminating roller (9); an embossing unit comprising at least a second embossing cylinder (25) provided with second projections (25P) defining a second pattern and a second pressure roller (27) cooperating with said second embossing cylinder (25); a first path (P1) for at least a first ply (V1) towards and through said first embossing-laminating unit (3); a second path (P2) for at least a second ply (V2) towards and through said second embossing unit (23); a third path (P3) for said third ply (V3).