US 9,986,757 B2Granted

Coating method

AssigneeTannpapier GmbH

InventorsGuenter Griesmayr, Barbara Puehringer, Bernhard Knauseder, Eike Schopper

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Abstract

A coating method for sheathing material formed from paper or card for smoking materials or parts of smoking materials in order to reduce the tendency of the sheathing material to absorb and diffuse aqueous or oily substances, the sheathing material being provided on the same side with two coatings, which are applied one on top of the other and are each applied in liquid form in two successive coating steps. In the first coating step, at least one layer of a first coating substance is applied, which reduces the ability of the paper or card to absorb the liquid volatile matrix of the second coating substance; in the second coating step, at least one layer of a second coating substance is applied, which is repellent or impermeable to one or more of the following substances: oils, fats, waxes, alcohols, and water.

Claims24

Dependent claims

A coating method for wrapping material formed from paper or board for smoking products or parts of smoking products, in order to reduce the tendency of this wrapping material to pick up aqueous or oily substances, and to reduce the diffusion of such substances, the wrapping material being provided on the same side with two coatings applied over one another, which are each applied in liquid form in two coating operations taking place after each other chronologically, in both coating operations the liquid coating mixture comprising:

a coating material and a liquid volatile matrix,
wherein
in a first coating operation, at least one layer of a first coating material is applied which reduces the absorption capacity of the paper or board with respect to the liquid volatile matrix of the second coating material;
and
in a second coating operation, at least one layer of a second coating material is applied which is repellent or resistant to one or more of the following substances, namely oils, greases, waxes, alcohols and water, a different liquid volatile matrix being used for the first coating material than for the second coating material,
wherein the wrapping material is selected from the group consisting of wrapping materials all which are not combusted during smoking of smoking products wrapped therewith, consisting of:
an inner sleeve of a pack for smoking products comprising a plurality of sleeves arranged inside one another;
an innerliner of a pack for smoking products;
a pack consisting of paper or board in which cigarettes are packed;
a carton as pack for smoking products;
and
a mouthpiece lining paper of a cigarette or a cigarillo, said mouthpiece lining paper for encasing the filter part of said cigarette or cigarillo.

9 more elements

A wrapping material for smoking products or parts of smoking products, wherein the wrapping material is provided on the same side with two coatings applied over one another, which were applied in liquid form in two coating operations taking place after each other chronologically, in both coating operations the liquid coating mixture comprising:

a coating material and a liquid volatile matrix,
wherein
the first coating is at least one layer of a first coating material which reduces the absorption capacity of the paper or board with respect to the liquid volatile matrix of the second coating material;
the second coating is at least one layer of a second coating material which is repellent or resistant to one or more of the following substances, namely oils, greases, waxes, alcohols and water;
wherein a different liquid volatile matrix being used for application of the first coating material than for the second coating material,
wherein the wrapping material is selected from the group consisting of wrapping materials all which are not combusted during smoking of smoking products wrapped therewith consisting of:
an inner sleeve of a pack for smoking products comprising a plurality of sleeves arranged inside one another;
an innerliner of a pack for smoking products;
a pack consisting of paper or board in which cigarettes are packed;
a carton as pack for smoking products;
and
mouthpiece lining paper of a cigarette or a cigarillo, said mouthpiece lining paper for encasing the filter part of said cigarette or cigarillo.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/024,776Filed 25 Sep 2014
Priority: AT A 50626/201327 Sep 2013
Published: US 2016/0262446 A115 Sep 2016
Granted: 5 Jun 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

A24C 5/565
Making tipping materials, e.g. sheet cork for mouthpieces of cigars or cigarettes, by mechanical means: by treating the tipping material with a…
A24C 5/005
Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes: treatment of cigarette paper
A24D 1/02
Cigars; Cigarettes: with special covers
D21H 19/824
Superposed: two superposed coatings, both being non-pigmented