58results about "Vegetable/imitation parchment" patented technology

The invention relates to a method for manufacturing glassine paper having a basis weight of less than 50 g / m2, wherein an optimal combination of BSKP, BHKP and BCTMP is used to adjust the properties of the fiber furnish. In glassine papers with very low basis weight the formation of the paper web upon paper manufacturing may be controlled by means of the fiber furnish optimization, which can be used to produce exceptionally thin glassine paper without downgauging and without adverse effects to other paper properties, which would prevent the use of the glassine paper as substrate layer in a release liner. Thus glassine paper with a moderate share of BCTMP in the fiber furnish may be produced, that has quality characteristics of the paper sufficient for use as a substrate layer of an industrial release liner.

Provided is a transparentizing agent which is formed from a bio-derived raw material and with which a transparent paper having excellent transparency and stability over time can be obtained. The present invention provides a transparentizing agent comprising a polyester resin component, which is a reaction product of raw material components including (A) rosins, (B) a polycarboxylic acid, (C) a polyol, and (D) an aliphatic monocarboxylic acid, wherein the acid value of the polyester resin component is 100 mgKOH / g or less, the weight average molecular weight of the polyester resin component is 1,000,000 or less, and the refractive index of the polyester resin component is 1.40-1.60.

The present invention relates to a glass paper for stripping interleaving paper, wherein the majority of the fiber ingredients are non-regenerated bleached chemical pulp from hardwood such as birch or eucalyptus. A small amount of recycled pulp produced from release liner glass paper and / or pulp mill broke is used to adjust the characteristics of the fiber ingredients. The invention makes it possible to produce cellophane, wherein the fibrous ingredients do not contain non-recycled chemical pulp produced from cork.

The present invention refers to a coated transfer paper for receiving digital printing inks, maintaining high tonal fidelity, the paper being treated to transfer the image when it contacts a receiving base, preventing transfer to surfaces that do not have the receiving base. In addition, the invention relates to a printing method that combines the techniques of screen printing and digital printing, using the transfer paper.

The invention provides one-way wood fiber paper. The one-way wood fiber paper is formed by shrinking a one-way wood veneer in at least one direction, wherein a part of substances are removed from the one-way wood veneer; the partial substances comprise lignin and hemicellulose; the thickness of the unidirectional wood fiber paper is less than or equal to 0.6 mm; the apparent thickness of the unidirectional wood fiber paper under the plane pressure of not more than 0.005 MPa is not more than 4 times of the average thickness of the unidirectional wood fiber paper. Compared with the prior art, the unidirectional wood fiber paper provided by the invention is thin in thickness, excellent in mechanical property and anisotropic, is made of 100% pure natural materials, has a compact effect in the thickness direction after being shrunk, and meanwhile, the transverse binding force and compactness of the unidirectional wood fiber paper are increased; and transverse cracking of the unidirectional wood fiber paper is reduced.

The present invention provides a wooden honeycomb, comprising a white honeycomb and a first resin compounded on the surface of the white honeycomb. The white honeycomb comprises a plurality of pieces of wood fiber paper and a core strip adhesive; the plurality of pieces of wood fiber paper are bonded by means of the core strip adhesive; the plurality of pieces of wood fiber paper comprise unidirectional wood fiber paper and / or composite wood fiber paper; and the composite wood fiber paper comprises the unidirectional wood fiber paper and a second resin layer and / or a fiber reinforced layer compounded on the surface of the unidirectional wood fiber paper. Compared with the prior art, the core material i.e., wood fiber paper, of the wooden honeycomb provided in the present invention is a natural environment-friendly material, and has excellent mechanical properties in both directions parallel to and perpendicular to wood fibers, so that the obtained wooden honeycomb has excellent mechanical properties, light weight and low costs, and is green and environment-friendly.

The present invention relates to a release liner base paper comprising at least 5 wt% of recycled fibers from recycled paperboard-based fibers, printing material-based fibers or both, and having a density of at least 1.00 g / cm3. Further aspects of the invention relate to a method for producing said release liner base paper, to the use of said release liner base paper in a method for producing a release liner, to a release liner comprising said release liner base paper and to a laminate comprising said release liner.

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 cellulose-based substrate comprising natural cellulosic fibers and non-fibrous cellulosic material, which is recyclable by repulping and wherein at least 50% by weight of the substrate is recoverable according to EN 13430, a method for preparing the cellulose-based substrate, a method for processing the cellulose-based substrate, and the use of the cellulose-based substrate for packaging.

Provided is a transparentizing agent for obtaining a transparentized paper having excellent transparency and long-term stability, said transparentizing agent using a raw material derived from organisms. Provided is a transparentizing agent comprising a polyester resin component which is a reaction product of raw material components comprising (A) a rosin, (B) a polycarboxylic acid, (C) a polyol, and (D) an aliphatic monocarboxylic acid, the polyester resin component having an acid value of 100 mgKOH / g or less and a weight-average molecular weight of 1,000,000 or less, the refractive index of the polyester resin component is from 1.40 to 1.60 (inclusive).

To provide a transparentizing agent that can be used to obtain a transparent paper having excellent transparency and temporal stability using a bio-derived raw material.SOLUTION: A transparentizing agent contains polyester resin components comprising reaction products of raw material components including (A) rosins, (B) polyvalent carboxylic acids, (C) polyols, and (D) aliphatic monocarboxylic acids, wherein the acid value of the polyester resin component is 100 mgKOH / g or under, the weight-average molecular weight of the polyester resin component is 1,000,000 or under, and the refractive index of the polyester resin component is 1.40 or over and 1.60 or under.SELECTED DRAWING: None

A translucent paper comprising a base paper layer, and optionally a coating layer adjacent to the base paper layer, wherein the base paper layer comprises a mixture of wood pulp fiber and microfibrillated cellulose, characterized in that the pulp fiber has a degree of Schopper-Riegler (SR) of more than or equal to 50 SR and that the microfibrillated cellulose is comprised in the mixture of pulp fiber and microfibrillated cellulose in an amount of 10 weight percent to about 50 weight percent, based on the weight of the mixture of pulp fiber and microfibrillated cellulose and wherein the mixture of pulp fiber and microfibrillated cellulose has a degree of Schopper-Riegler (SR) of between 65 SR and 95 SR, preferably of between 70 SR and 90 SR, as measured under ISO 5267-1.

The invention provides a wood fiber reinforced material. The wood fiber reinforced material comprises a compressed wood cell wall; the diameter of the wood fiber reinforced material is 0.2 to 0.8 mm; and the density of the wood fiber reinforced material is 0.9-1.8 g / cm < 3 >. Compared with the prior art, the wood fiber reinforced material provided by the invention has a very excellent mechanical enhancement effect, and a composite material obtained by compounding the wood fiber reinforced material and resin has remarkable texture, color and texture of a wood wiredrawing panel, is attractive and high in performance, has excellent long-term dynamic mechanical properties, and has excellent mechanical properties under the maximum stress of 90MPa. Under the fatigue test condition with the frequency of 5 Hz, no obvious performance attenuation can be achieved in one million times of cycles; in addition, the wood fiber reinforced composite material has excellent flame retardant property, and can reach the flame retardant grade of self-extinguishing when being away from fire without adding any flame retardant; in addition, the wood fiber reinforced material has excellent ultraviolet aging resistance and damp-heat aging resistance.

The invention discloses lignin-chitosan-based coated vegetable parchment and a preparation method and application thereof.The preparation method comprises the following steps that lignin, succinic anhydride and N, N-dimethyl benzylamine are added into a mixed solution of acetic acid and ethyl alcohol in proportion, and after esterification reaction, a succinic anhydride esterified lignin acetic acid ethyl alcohol mixed solution is obtained; then, chitosan is added into the lignin-chitosan-based coating, and after a reaction, the lignin-chitosan-based coating is obtained; the mass ratio of the lignin to the succinic anhydride to the N, N-dimethyl benzylamine to the chitosan is (0.5-20): (3-15): (0.5-3): (0.1-1); and soaking vegetable parchment in the lignin-chitosan-based coating, taking out, and drying to obtain the lignin-chitosan-based paper. The surface roughness of the coated vegetable parchment can be greatly reduced, the mechanical property of the coated paper can be remarkably enhanced by virtue of a rigid benzene ring structure of lignin, and the fracture stress is improved. Meanwhile, the aromatic ring structure of the lignin endows the coating with excellent hydrophobicity.

The invention is directed to a three-dimensional food packaging (100) having a packaging interior (V) and being made of a cellulosic fibrous material (200). At least a portion (111) of the food packaging (100) delimiting at least part of the packaging interior (V) is impregnated with a polymer (300) such that the impregnated portion (111) has a light transmittance above 60% for visible light.

The present invention relates to a three-dimensional food package (100). The three-dimensional food package (100) is made of a cellulosic fibrous material (200) and defines a package interior (V). At least a portion (111) of the three-dimensional food package (100) that bounds at least a portion of the package interior (V) is impregnated with a polymer (300), such that the impregnated portion (111) of the polymer (300) has a light transmittance of greater than 60% for visible light.

The present invention provides a wood fiber reinforced material, comprising compressed wood cell walls; the diameter of the wood fiber reinforced material is 0.2-0.8 mm; and the density of the wood fiber reinforced material is 0.9-1.8 g / cm3. Compared with the existing technology, the wood fiber reinforced material provided by the present invention has an excellent mechanical reinforcement effect, a composite material obtained by compounding said material with a resin significantly exhibits the texture, color, and feel of a brushed wood panel, combining aesthetics and high performance. Furthermore, said material has excellent long-term dynamic mechanical properties, being able to withstand 1 million cycles without significant performance degradation under fatigue test conditions of 90 MPa maximum stress and 5 Hz frequency. In addition, the wood fiber reinforced composite material has excellent flame retardant properties, being capable of reaching the flame retardant level of self-extinguishing after removal from fire without adding any flame retardant. Furthermore, the wood fiber reinforced material has excellent resistance to ultraviolet aging and damp-heat aging.

The core material of the wooden honeycomb material proposed in this invention, namely wood fiber paper, is a natural material with a low environmental impact. Furthermore, both the mechanical properties parallel to the longitudinal direction of the wood fibers and the mechanical properties perpendicular to the longitudinal direction of the wood fibers are quite excellent, and the resulting wooden honeycomb material has the advantages of excellent mechanical properties, lightweight design, low cost, and low environmental impact. [Solution] The present invention proposes a wooden honeycomb material. The wooden honeycomb material comprises a wooden honeycomb material and a first resin that adheres to the surface of the wooden honeycomb material. The wooden honeycomb material comprises a plurality of wood fiber paper and a core material adhesive. The plurality of wood fiber paper are bonded together with the core material adhesive. The plurality of composite wood fiber paper comprises unidirectional wood fiber paper and / or composite wood fiber paper. The composite wood fiber paper comprises unidirectional wood fiber paper and a second resin layer and / or fiber reinforcement layer that adheres to the surface of the unidirectional wood fiber paper.

A low grammage and low opacity paper is disclosed. The low opacity paper is made from a fibrous web containing highly refined cellulose fibers. The fibrous web is coated with a bio-based wax, such as a coconut-based, palm-based, or soy-based wax. The resulting product can have a relatively low basis weight and can have a relatively low opacity. Thus, the product can have excellent transparent or translucent characteristics.

The present invention provides a wood honeycomb, which includes a plain honeycomb and first resin combined with a surface of the plain honeycomb; the plain honeycomb includes a plurality of pieces of wood fiber paper and adhesive; the plurality of pieces of wood fiber paper are bonded by the adhesive; the plurality of pieces of wood fiber paper composite include unidirectional wood fiber paper and / or wood fiber paper composite; and the wood fiber paper composite includes unidirectional wood fiber paper, and a second resin layer and / or a fiber reinforced layer combined with the surface of the unidirectional wood fiber paper. Compared with related technology, the core material wood fiber paper of the wood honeycomb provided by the present invention is a natural environment-friendly material, and the mechanical properties in the direction parallel to wood fibers and the direction vertical to the wood fibers are excellent, so that the obtained wood honeycomb is excellent in mechanical property, light in weight, low in cost and environmentally friendly.

A low grammage and low opacity paper is disclosed. The low opacity paper is manufactured from a web containing highly refined cellulosic fibers. The web is coated with a bio-based wax, such as a coconut-based wax, palm-based wax or soy-based wax. The resulting product may have a relatively low basis weight and may have a relatively low opacity. Therefore, the product can have excellent transparent or translucent characteristics.

The invention relates to a method, system and a product thereof, wherein glassine or supercalendered kraft (SCK) paper, which has been used as a release liner substrate, is recycled into a high-quality pulp. When highly specific raw material is used for recycling, the characteristics of the recycled pulp may be adjusted already upon recycling. The method and the system is configured to adjust the fibrillation of the pulp such that the recycled pulp can be used without further refining for manufacturing new glassine or SCK paper. The compatibility of the recycled pulp may further be optimized for glassine or SCK paper production, respectively. Advantageously, the recyclable material is sorted based on the paper colour, prior to recycling. A recycled pulp may be provided which does not need to be bleached during the pulp recycling, prior to introducing it into a new glassine or SCK paper production.

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

The invention relates to a method for manufacturing calendered glassine paper having a basis weight in the range of 40 to 120 g / m2, wherein an optimal combination of non-recycled BCP, BCTMP and recycled pulp obtained from release liner glassine paper is used to adjust the properties of the fiber furnish. While the use of BCTMP enables a product having a higher bulk, the recycled pulp component, which has high compatibility with the paper manufacturing process, enables to balance the manufacturing process and reduce the dimensional changes and shrinkage of the formed paper. The combined presence of the BCTMP and the recycled pulp component in the fiber furnish improves the water removal from the fibers during the glassine paper manufacturing, while the presence of non-recycled BCP produced from softwood improves the formation and runnability of the paper web on the paper machine. This enables to produce calendered glassine paper with improved sustainability, wherein the density may be controlled by means of the fiber furnish, without downgauging and without adverse effects to other paper properties, which would prevent the use of the calendered glassine paper as substrate layer in a release liner.

The present invention provides a wood fiber reinforced material, comprising compressed wood cell walls; the diameter of the wood fiber reinforced material is 0.2-0.8 mm; and the density of the wood fiber reinforced material is 0.9-1.8 g / cm3. Compared with the existing technology, the wood fiber reinforced material provided by the present invention has an excellent mechanical reinforcement effect, a composite material obtained by compounding said material with a resin significantly exhibits the texture, color, and feel of a brushed wood panel, combining aesthetics and high performance. Furthermore, said material has excellent long-term dynamic mechanical properties, being able to withstand 1 million cycles without significant performance degradation under fatigue test conditions of 90 MPa maximum stress and 5 Hz frequency. In addition, the wood fiber reinforced composite material has excellent flame retardant properties, being capable of reaching the flame retardant level of self-extinguishing after removal from fire without adding any flame retardant. Furthermore, the wood fiber reinforced material has excellent resistance to ultraviolet aging and damp-heat aging.

This invention relates to a barrier paper comprising a parchment paper base material and a non-continuous coating formed on a surface thereof, wherein the non-continuous coating is made of at least one of a water-soluble polymer and a water-dispersible polymer.

The present invention relates to a barrier paper comprising a parchment substrate and a discontinuous coating layer formed on a surface thereof wherein the discontinuous coating layer is made of at least one of a water-soluble polymer and a water-dispersible polymer.

A low grammage, low opacity, and heat sealable paper is disclosed. The low opacity and heat sealable paper is manufactured from a web containing highly refined cellulosic fibers. The web may first be coated with a bio-based wax (e.g., coconut-based wax). The web is also coated with a coating composition that forms a heat sealable coating on the outer surface of the coated paper. The product may have excellent transparent or translucent properties. The product also has excellent heat sealability, so that the product is very suitable for producing packaging.

A low opacity paper is disclosed. The low opacity paper is made from a fibrous web containing unrefined cellulose fibers. The fibrous web is coated with a bio-based wax, such as a coconut-based, palm-based and soy-based wax. The resulting product can have a relatively low opacity. Thus, the product can have excellent transparent or translucent characteristics.