35results about "Coatings without pigments" patented technology

The present invention relates to a method for producing a barrier-coated substrate web (10; 25a) coated with a first layer (12a) of a reducing agent and a water-dispersible polymer and a second layer (13a) of reduced graphene oxide. The present invention further relates to a laminate packaging material (20a) comprising the barrier-coated substrate web (10), in particular intended for liquid carton food packaging, and to a liquid carton packaging container made of this laminate packaging material.

This oil repellent composition contains at least one of the following copolymer A and copolymer B.　Copolymer A: A copolymer which includes a unit based on a monomer represented by formula 1 and a unit based on a nonionic monomer that has a solubility of 1 g / 100 mL or more with respect to water at 20°C.　Copolymer B: A copolymer which includes a unit based on a monomer represented by formula 1 and units based on ionic monomers each having an ion-donating group, and in which the units based on ionic monomers include a unit based on a monomer having a cation-donating group and a unit based on a monomer having an anion-donating group.　In formula 1, X1 represents a monovalent polymerizable reactive group, A1 represents a divalent organic group, and B1 represents a monovalent organic group having at least one trialkylsilyl group.　Formula 1: X1-A1-B1

The present invention relates to the field of the adhesive tape industry, and more particularly, to a base paper for adhesive tapes and adhesive tapes for packaging and office / stationery use. According to one particular embodiment, the adhesive tape of the present invention may be based on transparent paper, one side of the paper being coated with a release agent and the other side being optionally coated with a primer coating. The present invention also relates to a method of producing the adhesive tape base paper and the adhesive tape, and their use as packaging or office / stationery tapes.

The present invention relates to a process for producing a fibrous material with improved dewatering behavior. The fibrous material produced according to the present invention is useful in the preparation of for example films and coatings. The fibrous material can be produced from a suspension comprising MFC or highly refined pulp, from which a part of the solids is removed, followed by heat treatment carried out on the suspension and / or on a wet web formed from the suspension.

The present invention relates to a method for producing a barrier substrate comprising a microfibrillated cellulose (MFC) film and a polymer film. The method comprises providing a suspension comprising between 50 and 100% MFC by weight, based on the total dry weight, and having a dry content of 1 to 40% by weight. A wet MFC film is formed from the suspension by casting it onto a non-porous support, and the wet MFC film positioned on the support is dehydrated and / or dried to a dry MFC film having a moisture content of 20% by weight or less. A polymer film is applied onto the dry MFC film positioned on the support to form an intermediate substrate, which is pressed in at least one nip to form a barrier substrate. The present invention also relates to the barrier substrate obtained by this method, a laminate comprising the barrier substrate and a paper or paperboard substrate, and a packaging material comprising the barrier substrate or laminate.

To provide a visually and mechanically stable wrapped aerosol generating substrate, particularly for aerosol generating articles that contain a high level of liquids or aerosol formers.SOLUTION: An aerosol generating article (10) includes an aerosol generating substrate (12) comprising nicotine and a first paper layer (50) disposed about the aerosol generating substrate. The first paper layer has a first thickness / grammage value. A second paper layer (20) is disposed about the first paper layer. The second paper layer has a second thickness / grammage value. The first thickness / grammage value is less than the second thickness / grammage value.SELECTED DRAWING: Figure 1

A method for manufacturing an MFC film from a microfibrillated cellulose (MFC) dispersion, comprising subjecting a wet MFC film (F) on a support to at least one drying step to form a dried MFC film (F'), and measuring at least one parameter indicative of the concentration of at least one component such as an additive or an impurity. i) a task of adjusting at least one manufacturing parameter that affects the concentration of the at least one component according to the at least one parameter, and ii) a task of providing a chemical map of the dried MFC film (F') including a plurality of data points each associated with a respective position on the dried MFC film (F'), by recording the at least one parameter for each of the data points. performing at least one of the above A method comprising the above.

To provide a cellulose nanofiber-dispersed aqueous resin reinforced material that is lightweight and excellent in elastic modulus.SOLUTION: A cellulose nanofiber-dispersed aqueous resin reinforced material has a cellulose nanofiber-dispersed aqueous resin in which cellulose nanofibers and an aqueous resin are impregnated into at least one substrate selected from the group consisting of a woven fabric, a nonwoven fabric, bamboo, paper, and wood (where, when the substrate is a woven fabric and / or a nonwoven fabric, the aqueous resin is not a thermoplastic resin).SELECTED DRAWING: None

The present invention relates generally to packaging and coating materials and, more specifically, to a composition comprising a nanocellulose material, its use as a coating and a process for coating a surface with said composition. The composition of the present invention comprises a nanocellulose material, a cellulose pulp fiber having an average fiber length less than 2 mm, and water.

A barrier film (1) for a paper or paperboard-based packaging material, said barrier film comprising a, MFC layer, (2) with a grammage in the range 20-100 g / m2, and a density higher than 650 kg / m3. The barrier film further comprises a PHA, dispersion coated, primer layer (3, 9) coated on at least one side of the MFC layer, wherein the primer layer has a coating weight 0.5-12 g / m2; the primer layer (3, 9) comprises a PHA type selected from the group consisting of PHB, PHBV, PHBH, P(3HB4HB), other co- polymers of PHB, other homopolymers such as PHO, PHH, P3HP, and combinations thereof; and a - a thin DLC coating layer (4) coated on the primer layer (3) which DLC coating layer (4) has a thickness of 2-100 nm, preferably 2-50 nm and most preferred 2-30 nm.

A barrier film (1) for a packaging material based on paper or cardboard, the barrier film having a basis weight in the range of 20 to 100 g / m 2 and a density higher than 650 kg / m 3 and comprising an MFC layer (2). The barrier film further comprises a primer layer (3, 9) coated with a PHA dispersion and having a coating weight of 0.5 to 12 g / m 2 , the primer layer (3, 9) being coated on at least one side of the MFC layer and containing a PHA type selected from the group consisting of PHB, PHBV, PHBH, P(3HB4HB), other copolymers of PHB, other homopolymers, such as PHO, PHH, P3HP, and combinations thereof; and a vacuum-deposited thin layer (4) having a thickness of 20 to 500 nm coated on the first primer layer (3), the vacuum-deposited thin layer containing a material selected from the group consisting of aluminum, magnesium, silicon, copper, aluminum oxide, magnesium oxide, silicon oxide, and combinations thereof, preferably aluminum oxide.

The present invention relates to a method for manufacturing a laminate comprising a paper or paperboard substrate and a microfibrillated cellulose (MFC) film. A first web comprising a substrate of paper or paperboard is provided. A second web of the MFC film is provided, and the MFC film has a) an MFC content between 50 and 100 wt% based on the total dry weight, b) a moisture content of 5 to 20 wt%, and c) a ratio of the machine direction tensile index to the cross direction tensile index of 0.8 to 1.4. The MFC film is further dried until it has a moisture content of less than 4 wt%. The first web and the second web are joined using at least one adhesive layer provided between the webs after further drying to form a laminate. The MFC film has a moisture content of less than 4 wt% at the time of joining. The present invention also relates to the laminate and a packaging material comprising the laminate.

A method of producing a microfibrillated cellulose, MFC, film from an MFC dispersion, comprises subjecting a wet MFC film on a support to at least one drying step to form a dry MFC film (F'), measuring at least one parameter indicative of the dry solids content in the wet MFC film (F) and / or in the dry MFC film (F') at at least two data points which are laterally spaced across at least a width of the MFC film (F, F'), and varying drying conditions of at least one of said at least one drying step across a width of the wet MFC film (F, F') in response to said parameter. There is also disclosed a device for producing MFC film, use of such device and an MFC film.

In sheet materials, the surface resistivity of the substrate is reduced without impairing the texture of the substrate. [Solution] The solution comprises a sheet-like substrate and chitosan and cellulose nanofibers attached to the substrate, wherein both the chitosan content and the cellulose nanofiber content are such that 1 m of the substrate 2 The amount is 0.2g or more per unit, and the total amount of chitosan and cellulose nanofiber is equal to 1 m of base material. 2 This sheet material is characterized by having a content of 1.5g or more and 8.0g or less per unit.

An aerosol-generating article for producing an inhalable aerosol upon heating, the aerosol-generating article comprising a paper wrapper wrapped around the aerosol-generating article, the paper wrapper including an embossed portion having an inner surface that is water-resistant.

A coating material includes silane salt-modified polysaccharide salt, cationic starch, and water. The silane salt can be Si(OH)x(OK)y(R)4-x-y; R is a C1-10 alkyl group; x=1 to 2, y=1 to 2, and x+y=2 to 3. The polysaccharide salt is a salt of cellulose derivative, natural gum, alginic acid, starch, chitosan, or a combination thereof. The coating material can be used to manufacture an oil-proof paper.

According to the present disclosure, a packaging material is provided that is well suited for use with aerosol delivery products, such as non-burning heatable sticks. The packaging material of the present disclosure includes a substrate web made of cellulose fibers combined with filler material particles. The substrate web can be coated on at least one side with an air permeability reducing composition or treated with a flame retardant salt. The substrate web is configured to have a predetermined basis weight, bulk, and air permeability to create a low flammability aerosol delivery product.

Fibrous cellulose composite resin of high strength and a method for producing the same are provided. The fibrous cellulose composite resin contains fibrous cellulose and resin, wherein the fibrous cellulose is carbamated microfiber cellulose having hydroxy groups partially or fully substituted with carbamate groups, and having Fines A of 25% or higher and a percentage of fibrillation of 1.0% or lower. The method for producing the fibrous cellulose composite resin includes subjecting raw material pulp to papermaking to obtain a strip-shaped pulp sheet, coating the pulp sheet with at least either of urea and a derivative thereof, followed by heating, to prepare a carbamated pulp sheet, defibrating the carbamated pulp sheet into carbamated microfiber cellulose having Fines A of 25% or higher and a percentage of fibrillation of 1.0% or lower, and kneading the carbamated microfiber cellulose and resin.

The invention relates to a converting-process of forming an open container from laminated raw materials and / or from treated laminated raw materials, particularly from a packaging material comprising at least a fiber based substrate layer [K] having an area weight, determined according to EN ISO 536, within the range of from 25 to 475 g·m-2; and one or more cross-linked polysiloxane layers [N] which have a total area weight, determined according to EN ISO 536, within the range of from 0.1 to 10 g·m-2. Preferably, the packaging material has a total content of polyolefins, preferably of any synthetic organic polymers, of at most 5.0 wt.-%, relative to the total weight of the packaging material. Preferably, the packaging material has a Cobb 600 value determined according to EN ISO 535 of below 0.2 g·m-2, preferably at most 0.1 g·m-2.

The composition has the following chemical structure: (CH3)3SiO-Y(CH3)SiO-Si(CH3)3, where Y is -(CH2)2O(CH2)4O(CH2CH2O) n It contains a silicone polyether, where H is the subscript n has an average value in the range of 1 to 500.

The present invention provides a method for producing a nonwoven fabric, the method comprising: i) applying a layer of a dispersion comprising a dispersion medium and bio-based first fibers (110) onto a support, the bio-based first fibers (110) being derived from microorganisms cultured in a liquid medium, and a plasticizer being added to the dispersion prior to said application; ii) depositing reinforcing second fibers (120) onto the layer of dispersion, the reinforcing second fibers (120) being separate fibers not part of the fabric, the second fibers having an average length at least 10 times the average length of the first fibers; and iii) removing the dispersion medium to form a nonwoven fabric (100) comprising a web of the bio-based first fibers (110). Nonwoven fabrics and seamless products comprising such nonwoven fabrics are also provided.

A first aspect of the invention relates to a coated substrate, the substrate comprising or consisting of glass and / or metal, said substrate having a primary coating on at least one surface; and at least one, preferably removable, layer of nanocellulose on at least a part of said at least one surface of the substrate, on top of the primary coating. In a second aspect, the invention is directed to the use of nanocellulose as, preferably removable, protective coating on a surface of a substrate having a primary coating on at least one surface. A third aspect of the invention relates to a process for protecting a substrate, a fourth aspect is directed to an aqueous mixture comprising nanocellulose, preferably obtainable or obtained by the process of the second aspect of the invention, and a fifth aspect of the invention relates to an aqueous mixture comprising nanocellulose, further comprising (or being essentially free of) at least one binder or a reaction product of at least one binder and / or at least one filler.

The present invention relates generally to moisture vapour transmission modulators and / or humidity control materials, and more particularly but not necessarily exclusively, to compositions for decreasing the moisture vapour transmission rate and / or humidity control and their method of use. In some forms, the composition of the invention may be applied to a material. Such materials may be used in packaging goods prone to spoilage such as food. Such materials may be used to reduce or prevent degradation of or damage to packaged electronics, pharmaceuticals, and dry products such as paper (for example, so as to prevent curl in copy paper). Such materials may be used to form packaging that may otherwise be weakened by the action of liquids such as water. Such materials may be used to protect other packaging components added to protect contents but are prone to degradation under high moisture environments by way of example repulpable and compostable materials are subject to loss of barrier performance under high humidity conditions.

The invention relates to a nano-embossed tipping paper (1) which comprises a coating layer (2) containing nitrocellulose or ethyl cellulose, wherein the coating layer (2) is either a clear coating layer or a coloured coating layer and is provided with a nanostructure by means of mechanical embossing.

A barrier film (1) for a packaging material based on paper or cardboard, said barrier film having a basis weight in the range of 20 to 100 g / m 2 and a density higher than 650 kg / m 3 and comprising an MFC layer (2). This barrier film further comprises a primer layer (3, 9) coated with a dispersion of PHA and having a coating weight of 0.5 to 12 g / m 2 , said primer layer (3, 9) being coated on at least one side of the MFC layer and containing a PHA type selected from the group consisting of PHB, PHBV, PHBH, P(3HB4HB), other copolymers of PHB, other homopolymers, such as PHO, PHH, P3HP, and combinations thereof; and a thin DLC coating layer (4) coated on the primer layer (3), said DLC coating layer having a thickness of 2 to 100 nm, preferably 2 to 50 nm, most preferably 2 to 30 nm.

The present invention relates to a barrier film for a cellulose-based material, said barrier film comprising at least one microfibrillated cellulose layer (MFC layer), wherein said MFC layer comprises a three-dimensional (3D) pattern.

This invention relates to the field of papermaking technology, and discloses a lightweight, waterproof, and oil-resistant vegetable parchment paper and its papermaking process. The parchment paper is made of a base paper substrate, sizing components, and a plasticizer. Polyamide epichlorohydrin resin penetrates into the internal pores of the base paper, while inorganic aluminum salt, alkyl ketone dimer, and cationic dispersed rosin are loaded onto the surface of the substrate. The surface loading structure is formed by sequential spraying of an aqueous solution of inorganic aluminum salt and a mixture of the latter two through a spatially and temporally delayed process. The papermaking process includes mixed acid impregnation and gelation of the base paper, multi-stage washing, resin pressing and penetration, delayed sequential surface spraying, plasticizer impregnation, and segmented drying, and also includes the concentration, crystallization, purification, and recovery of waste mixed acid solution. This invention, through its internal and external layering and delayed surface application design, effectively avoids salt precipitation and demulsification during the sizing process, achieving a balance between the paper's internal wet strength and surface impermeability.

The application relates to a coated paper comprising a base paper and at least one coating applied directly or indirectly onto the base paper, wherein the coating comprises a) at least one natural wax and / or at least one carboxylic acid component; and b) at least one natural resin; wherein the permeability of the coated paper for at least one gas is reduced compared to the base paper. Furthermore, the application relates to the coating used for producing the coated paper, the production method, and the packaging produced therefrom.

The composition has the following chemical structure: (CH3)3SiO-Y(CH3)SiO-Si(CH3)3, where Y is -(CH2)3O(CH2)CH[CH2O(CH2) m CH2CH3]O(CH2CH2O) n The material contains a silicone polyether, where H is the subscript m has an average value in the range of 10 to 14, and n has an average value in the range of 1 to 500.