Patents Assigned to delfortgroup AG
  • Patent number: 11241033
    Abstract: The invention relates to a method for marking a wrapping paper for smoking articles, comprising the following steps: (A) providing a wrapping paper for smoking articles, and (B) producing register marks on the wrapping paper by treating the surface of the wrapping paper with laser radiation having an energy density y in J-m-2, to which the following applies: y=k·x, whereby x is the enthalpy of combustion per volume of the wrapping paper in J·m?2·?m?1, and k is at least ?8 ?m and at most ?1 ?m.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: February 8, 2022
    Assignee: delfortgroup AG
    Inventor: Daniel Fischer
  • Patent number: 11083217
    Abstract: Disclosed herewith is a filter paper for manufacturing filters for smoking articles, in particular filter cigarettes, with the following properties the filter paper comprises fibers comprising pulp fibers, at least 80% by weight, preferably at least 90% by weight, particularly preferably at least 95% by weight and highly particularly preferably 100% by weight of the filter paper is formed by long-fiber pulp fibers, of the fibers, a proportion with respect to the number of the fibers of between 2% and 10%, preferably between 3% and 9% and particularly preferably between 4% and 8% has a length of less than 0.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: August 10, 2021
    Assignee: delfortgroup AG
    Inventors: Stefan Bachmann, Christian Mair, Dietmar Volgger
  • Publication number: 20210015147
    Abstract: Disclosed herein is an aerosol-generating article comprising an aerosol-generating material, which is heated during intended use to release an aerosol, but is not burnt, and a wrapping material. Therein, the wrapping material has a thickness of at least 50 ?m and at most 350 ?m, a basis weight of at least 50 g/m2 and at most 200 g/m2, a specific density of at least 500 kg/m3 and at most 1300 kg/m3, and a bending stiffness of at least 0.15 Nmm and at most 1.50 Nmm. The wrapping material further comprises at least two layers, wherein the layers are connected to each other and wherein one layer is a paper layer, which has a thickness of at least 40 ?m and at most 70 ?m, a basis weight of at least 50 g/m2 and at most 80 g/m2, and a density of at least 700 kg/m3 and at most 1300 kg/m3, and a specific density that is higher than the specific density of any of the other layers of the wrapping material.
    Type: Application
    Filed: February 21, 2019
    Publication date: January 21, 2021
    Applicant: delfortgroup AG
    Inventors: Christian MAIR, Dietmar VOLGGER
  • Patent number: 10760219
    Abstract: Packaging paper for food, with a basis weight from 20 g/m2 to 50 g/m2, comprising cellulose fibers and one or more filler materials, wherein the total amount of filler materials is between 5% by weight and 20% by weight with respect to the weight of the packaging paper, wherein the packaging paper comprises a sizing agent that is contained in such an amount that a relative water absorption of 0.4 to 0.7 is obtained on both sides, wherein the relative water absorption is defined as the quotient of the Cobb60 value, determined in accordance with ISO 535:2014, and the basis weight, has a coating on at least one side that comprises nanoparticles of a starch, wherein the coating contains between 1 g/m2 and 6 g/m2 of said nanoparticles, does not contain any compounds with the structure CF3(CF2)n(CH2)mX, wherein n=5 or n=7 and m=0, 1 or 2 and X is a hydroxyl group (X?OH) or a carboxyl group (X?COOH), or the proportion of such compounds in the total mass of the packaging paper is less than 0.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: September 1, 2020
    Assignee: delfortgroup AG
    Inventor: Petri Niemi
  • Patent number: 10405573
    Abstract: A wrapping paper for smoking articles has a basis weight of at least 10 g/m2 and at most 70 g/m2 and comprises a mixture of cellulosic pulp fibers comprising at least 90% of short-fiber cellulosic pulp fibers, based on the mass of the cellulosic pulp fibers in the cellulosic pulp mixture, or comprising at least 95% of short-fiber cellulosic pulp fibers, based on the number of cellulosic pulp fibers, with at least 10% of the short-fiber cellulosic pulp fibers being ground, based on the mass of the number of cellulosic pulp fibers of the cellulosic pulp fiber mixture, and with the wrapping paper having over more than 50% of its area, preferably at least 55% of its area and especially preferably at least 60% of its area, an air permeability of at least 30 cm3/(cm2,min-kPa), and where the wrapping paper comprises at least one burning salt.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: September 10, 2019
    Assignee: delfortgroup AG
    Inventors: Kannika Pesendorfer, Karin Sjöström, Dietmar Volgger, Rainer Fantur
  • Patent number: 10378152
    Abstract: The objective of the present invention is to provide a packaging paper for food which on the one hand offers a sufficiently high resistance against the penetration of grease, oil, and water and on the other hand can easily be recycled or biologically degraded.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: August 13, 2019
    Assignee: delfortgroup AG
    Inventor: Hannes Kinast
  • Patent number: 10362801
    Abstract: The invention relates to a wrapping paper for smoking articles that contains pulp fibers and at least one acid-soluble filler, the content of acid-soluble filler being at least 10 wt % relative to the entire mass of the wrapping paper, and the wrapping paper having portions with a lower transparency and portions with a higher transparency.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: July 30, 2019
    Assignee: delfortgroup AG
    Inventors: Roland Zitturi, Dietmar Volgger
  • Patent number: 10349673
    Abstract: The present invention relates to a composition having two or three film-forming agents for applying to cigarette paper, wherein the molecular weight distributions of the film-forming agents are statistically significantly different from each other. The invention further relates to a cigarette paper on which the composition is applied to discrete regions, wherein the regions are characterized by a value for diffusivity, and to a cigarette comprising the cigarette paper, characterized by values for auto-selection. The present invention further relates to a method for producing the cigarette paper and the cigarette.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: July 16, 2019
    Assignee: Delfortgroup AG
    Inventor: Dietmar Volgger
  • Patent number: 10292418
    Abstract: A wrapping material for a smoking article is disclosed, which has a laminar shape that extends further in two mutually orthogonal spatial directions X and Y than in a third spatial direction Z orthogonal to the spatial directions X and Y. The wrapping material has, at least in part of its area, a first and a second diffusion capacity D1 and D2 for a diffusion of CO2 through the wrapping material in the +Z-direction and the ?Z-direction, respectively, wherein for the first and second diffusion capacity D1 and D2, each an average of 10 values, one or both of the following relationships (i) and (ii) hold: |D1?D2|?0.03 cm/s??(i) at a probability of error of 1% 2 ? ? D 1 - D 2 ? D 1 + D 2 ? 0.030 .
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: May 21, 2019
    Assignee: delfortgroup AG
    Inventor: Bernhard Pammer
  • Patent number: 10231481
    Abstract: A cigarette paper is disclosed that has at least one treated area to which a composition that contains filler particles or a mixture of filler particles is applied. The diffusion capacity thereby in the at least one treated area is less than in an untreated area of the cigarette paper, wherein at least 20% by weight, preferably at least 50% by weight and particularly preferably at least 70% by weight of the filler particles in the treated area are formed by a filler with a flaked shape or a filler with a cubic shape. Additionally or alternatively, a filler with a scalenohedral or rhombohedral crystal structure can be used, as long as the particle size distribution is selected appropriately.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: March 19, 2019
    Assignee: delfortgroup AG
    Inventors: Dietmar Volgger, Roland Zitturi
  • Patent number: 10154687
    Abstract: A cigarette paper is disclosed that contains at least one burn additive the concentration c(x) of which varies along a direction x of the cigarette paper. For the position-dependent concentration c(x) over an interval of length L, for x over the interval [0,L], ƒ(x)??c?c(x)?ƒ(x)+?c. In this regard, 3 cm?L?11 cm, ƒ(x) is monotonic over the interval [0,L], but not a constant function over the entire interval, and ?c?1% by weight, preferably ?0.7% by weight and particularly preferably ?0.5% by weight, and especially preferably ?0.3% by weight and particularly preferably ?0.15% by weight and ?c>0% by weight, each with respect to the mass of the cigarette paper.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: December 18, 2018
    Assignee: delfortgroup AG
    Inventors: Dietmar Volgger, Stefan Bachmann
  • Patent number: 9775378
    Abstract: A cigarette paper contains pulp fibers and filler particles, whereby at least 20% of the filler particles, by mass or by particle number, have a flaked shape. The flaked filler particles have a length l, a width b and a thickness d, which correspond to the respective maximum extension in three mutually orthogonal spatial directions, whereby the length l as well as the width b are at least twice as large as the thickness d. The mass-specific median value d50 of the particle size distribution measured according to ISO 13317-3 is between 0.2 ?m and 4.0 ?m, and the flaked particles are formed by calcium carbonate.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: October 3, 2017
    Assignee: delfortgroup AG
    Inventors: Dieter Möhring, Roland Zitturi, Dietmar Volgger
  • Patent number: 9635882
    Abstract: A cigarette paper is shown which has the following properties over at least a part of its surface: no artificial perforation, the air permeability is at least 15 CU, preferably at least 20 CU, and especially preferably at least 25 CU, and for the exponent k, measured with a measuring head with a rectangular opening of 2 mm by 15 mm, in accordance with ISO 2965:2009, which is defined by k = log ? Q 1 Q 2 log ? p 1 p 2 with Q1: air-flow through the paper at a pressure difference p1=1.00 kPa and Q2: air-flow through the paper at a pressure difference p2=0.25 kPa, the following holds k?0.98, preferably k?0.95, especially preferably k?0.93, and k?0.80, preferably k?0.85.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: May 2, 2017
    Assignee: delfortgroup AG
    Inventors: Bernhard Eitzinger, Maria Gleinser
  • Patent number: 9439451
    Abstract: What is presented is a paper for mixing into the smokeable material of a smoking article, particularly into the tobacco rod of a cigarette, wherein the paper contains a share of fibers, which comprises pulp fibers and tobacco particles.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: September 13, 2016
    Assignee: delfortgroup AG
    Inventor: Dietmar Volgger
  • Patent number: 9427021
    Abstract: The invention relates to a cigarette paper onto which a composition is applied in the form of a pattern which has a Tamura coarseness of at most 0.22 mm, preferably at most 0.2 mm. According to ISO 2470-1 the absolute difference in whiteness between an area of the cigarette paper over the whole of which the composition is applied and an area of the cigarette paper onto which the composition is not applied is at least 25% in the dry state, preferably at least 35% and particularly preferably at least 40% and at most 60%, preferably at most 55%. Furthermore, the opacity according to ISO 2471 of an area of the cigarette paper over the whole of which this composition is applied is higher, when the composition is in the dry state, than the opacity of an area onto which this composition is not applied.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: August 30, 2016
    Assignee: delfortgroup AG
    Inventors: Roland Zitturi, Irene Rohregger, Maria Gleinser
  • Patent number: 9414626
    Abstract: A cigarette paper is disclosed which contains pulp fibres and filler material particles, wherein at least 50% by weight, preferably at least 70% by weight and particularly at least 90% by weight of the filler material has a particle size distribution measured in accordance with ISO 13320 for which for the distribution parameter p=d10+2·d30+2·d70-d90 holds: p?5.0 ?m, preferably p?4.0 ?m and particularly preferably p?3.5 ?m, and p??1.0 ?m, preferably p?0.0 ?m and particularly preferably p?1.0 ?m.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: August 16, 2016
    Assignee: delfortgroup AG
    Inventors: Dieter Möhring, Roland Zitturi, Kannika Pesendorfer, Dietmar Volgger
  • Patent number: 9392818
    Abstract: The invention relates to a cigarette paper for self-extinguishing cigarettes. The cigarette paper comprises bands onto which a material reducing the diffusion capacity is applied, wherein a band comprises two band-like outer zones (18a, 18b) and a band-like central zone (20) therebetween. The said material is applied substantially over the entire surface up to the outer zones (18a, 18b) of the band (10). The aforementioned material is additionally applied to at least 70%, preferably at least 75% and/or at most 95%, preferably at most 90% of the surface of the central zone (20). The surface (22) to which the said material is applied is path-connected. The surface of the central zone (20), to which the said material is applied is likewise path-connected.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: July 19, 2016
    Assignee: delfortgroup AG
    Inventors: Roland Zitturi, Dietmar Volgger
  • Patent number: 9392817
    Abstract: The invention relates to a paper that disintegrates quickly in water, for use as a filter material or filter wrapper paper of a cigarette filter. At least 80 wt % of the paper is formed by cellulose fibers. Of the cellulose fibers, at least 80 wt % are a mixture of long fiber pulp and mercerized pulp. 0 to 90 wt % of the content of the mixture is formed by mercerized pulp, and the rest is formed by long fiber pulp. The cellulose fibers of the mixture have a freeness of at most 30° SR according to ISO 5267. In the disintegration test using an apparatus as described in TAPPI T 261, the paper exhibits a disintegration of at least 60% after 30 seconds.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: July 19, 2016
    Assignee: delfortgroup AG
    Inventors: Stefan Bachmann, Dietmar Volgger, Dieter Möhring, Kannika Pesendorfer, Guido Reiter
  • Patent number: 9333530
    Abstract: An arrangement for processing a paper web having a low surface area density not exceeding 70 g/m2, in particular a cigarette paper web, that may include in a conveyance direction: an input side, over which the paper web is fed into the arrangement; an output side, over which the paper web leaves the arrangement; a device downstream of the input side, in particular a printing unit, preferably a gravure printing unit, for applying a liquid printing medium to the paper web; a first drying station following the applying station in direction of conveyance, in particular hot-air drying, for drying the printing medium applied to the paper web; a device following the first drying in direction of conveyance for moistening the paper web and a second drying station following the moistening device in direction of conveyance, by which the moistened paper web is dried.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: May 10, 2016
    Assignee: delfortgroup AG
    Inventor: Franz Burger
  • Publication number: 20150327593
    Abstract: A cigarette paper is disclosed which contains pulp fibres and filler material particles, wherein at least 50% by weight, preferably at least 70% by weight and particularly at least 90% by weight of the filler material has a particle size distribution measured in accordance with ISO 13320 for which for the distribution parameter p=d10+2·d30+2·d70-d90 holds: p?5.0 ?m, preferably p?4.0 ?m and particularly preferably p?3.5 ?m, and p??1.0 ?m, preferably p?0.0 ?m and particularly preferably p?1.0 ?m.
    Type: Application
    Filed: October 8, 2013
    Publication date: November 19, 2015
    Applicant: DELFORTGROUP AG
    Inventors: Dieter Möhring, Roland Zitturi, Kannika Pesendorfer, Dietmar Volgger