Abstract:
The foil embossing device has an embossing unit (34) comprising at least two rollers (40, 41) at least one of which (40) is an embossing roller and is driven by a drive (5), at least the embossing roller having teeth (B) that project from the base cylinder for producing logos on the foil in a logo area (27) with teeth (39) that are different from the regularly arranged teeth (A) in order to produce a variable specific embossing pressure on the foil, the rollers having both axially and radially acting centering elements (4, 8) for centering the embossing roller (40) with respect to the other roller (41). It is thus possible to emboss logos in a substantially greater variety of designs and with higher accuracy than in the prior art and thus to achieve a sophisticated esthetic impression.
Abstract:
The device for satinizing and embossing metallized or surface-treated packaging foils comprises three embossing rolls, all three embossing rolls cooperating with one another and the packaging foil being capable of being passed under pressure between the first and the second and between the first and the third embossing rolls in order to produce a satin-finish and a pattern. The first, driven embossing roll has a tooth array composed of individual teeth that are arranged in a homogenous grid, and the other two embossing rolls each have a surface structure that differs from that of the first embossing roll. At least one of the additional embossing rolls has structural elements that are arranged individually or in groups but not in the same grid as on the first roll, the structural element being composed of individual teeth and being arranged circularly on the embossing roll. Such an arrangement provides an effective breaking of the paper substrate of the foil and thus a surface having improved properties. Such a surface is particularly suitable for shadow embossing and for embossing authentication and identification features.
Abstract:
Methods and apparatuses for deforming a web are disclosed. In one embodiment, the method involves feeding a web into a nip that is formed between at least two intermeshing rolls. The rolls are configured for deforming a web with at least two sets of deformations that are oriented in different directions relative to the surfaces of the web.
Abstract:
Apparatus for making micro-textured webs. The apparatus comprises a pair of mated forming structures having a first forming structure, a second forming structure, and a deformation zone; wherein at least the first forming structure comprises voids, and wherein at least the second forming structure comprises protrusions wherein at least one protrusion has center-to-center spacings of less than about 800 microns with at least three of its adjacent protrusions. The voids of the first forming structure are engagable with the protrusions of the second forming structure at an engagement position to form a micro-textured web. In another embodiment, the apparatus comprises a pair of counter-rotating rollers wherein the first roller comprises grooves having a length, wherein the length of the grooves are oriented at an angle different from the machine direction.
Abstract:
The present invention relates to a high speed embossing and adhesive printing process, said process comprising the steps of (a) applying an adhesive to a conformable heated glue application roll; (b) applying said adhesive to a first patterned embossing roll, having an outer surface, which is engaged with a second patterned embossing roll having a complementary pattern to said first embossing roll; (c) passing a web of sheet material between said first and second embossing rolls at a tangential line speed to simultaneously emboss said web and apply said adhesive to said web, such that said adhesive forms an adhesive pattern between embossments; and (d) applying a renewable release agent to the outer surface of the first patterned embossing roll.
Abstract:
An embossing and adhesive application process including the steps of: applying an adhesive to a first patterned embossing roll which is engaged with a second patterned embossing roll having a complementary pattern to the first embossing roll; passing a web of sheet material between the first and second embossing rolls at a tangential line speed to simultaneously emboss the web and direct the adhesive against the web; and splitting the adhesive such that at least some of the adhesive remains on the first embossing roll and some of the adhesive remains on the web to form an adhesive pattern between embossments on the web.
Abstract:
The present invention provides a process which in a preferred embodiment includes the steps of: (a) applying a hot melt adhesive to a heated roll rotating at an initial tangential speed; (b) milling the adhesive to a reduced thickness and accelerating said adhesive through a series of metering gaps between a plurality of adjacent heated glue rolls; (c) applying the adhesive to a conformable glue application roll rotating at a tangential line speed which is higher than the initial tangential speed; (d) applying the adhesive to a first patterned embossing roll which is engaged with a second patterned embossing roll having a complementary pattern to the first embossing roll, the embossing rolls being heated; (e) passing a web of sheet material between the first and second embossing rolls at the tangential line speed to simultaneously emboss the web and apply the adhesive to the web, such that the adhesive forms an adhesive pattern between embossments; (f) transferring the web from the second embossing roll to the first embossing roll; (g) stripping the web from the first embossing roll; and (h) cooling the web.
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 invention relates to a process for manufacturing an absorbent sheet comprising at least two plies of cellulose wadding, consisting in combining said plies under pressure by passing between two steel cylindrical components, the first (1) being smooth on the outside and the second (2) being equipped with raised components on the outside and the hardness of the first cylindrical component being lower than that of the second cylindrical component. According to the invention, the first cylindrical component (1) has a treated hardened surface layer (11) and a deformable underlayer (12); the second cylindrical component has a hardened outer surface, and the sheet, when it passes between the two cylindrical components (1, 2), is compressed at a specific pressure between 40 and 250 N/mm 2 . Another subject of the invention is an assembly of steel cylindrical components (1, 2) intended for the manufacture of multiply absorbent sheets.
Abstract translation:本发明涉及一种用于制造包含至少两层纤维素填料的吸收性片材的方法,其包括在压力下通过在两个钢制圆柱形部件之间通过而将所述层组合,所述第一(1)在外侧是光滑的,而第二(2) )在外侧配备有凸起部件,并且第一圆柱形部件的硬度低于第二圆柱形部件的硬度。 根据本发明,第一圆柱形部件(1)具有经处理的硬化表面层(11)和可变形底层(12); 第二圆柱形部件具有硬化的外表面,并且当薄片通过两个圆柱形部件(1,2)之间时,该薄片在40和250N / mm 2之间的特定压力下被压缩。 本发明的另一主题是用于制造多吸收片材的钢制圆柱形部件(1,2)的组件。
Abstract:
L'invention concerne un procédé de fabrication d'une feuille absorbante comprenant au moins deux plis d'ouate de cellulose, consistant à associer sous pression lesdits plis par passage entre deux éléments cylindriques en acier, le premier (1) étant extérieurement lisse et le second (2) étant extérieurement pourvu d'éléments en relief et la dureté du premier élément cylindrique étant inférieure à celle du second élément cylindrique. Conformément à l'invention, le premier élément cylindrique (1 ) présente une couche superficielle (11) traitée, durcie et une sous-couche déformable (12); le second élément cylindrique présente une surface extérieure durcie, et la feuille, lors de son passage entre les deux éléments cylindriques (1, 2), est comprimée à une pression spécifique comprise entre 40 et 250 N/mm2. L'invention a en outre pour objet un ensemble d'éléments cylindriques en acier (1, 2) destinés à la fabrication de feuilles absorbantes multi-plis.
Abstract translation:本发明涉及一种制造吸收性片材的方法,该方法包括至少两层纤维素填料,其通过在两个钢制圆柱形部件之间通过压力将所述层组合在一起,所述第一层(1)在外部是光滑的,而第二层 )在外部配备凸起部件,第一圆柱形部件的硬度低于第二圆柱形部件的硬度。 根据本发明,第一圆柱形部件(1)具有经处理的硬化表面层(11)和可变形底层(12); 第二圆柱形部件具有硬化的外表面,并且当片材通过两个圆柱形部件(1,2)之间时,片材在40-250N / mm 2之间的特定压力下被压缩。 本发明的另一主题是用于制造多重吸收性片材的钢制圆柱形部件(1,2)的组件。