211results about "Coated paper substrate" patented technology

A fibrous product (10, 20, 20b, 30), especially tissue paper product, non-woven products or a hybrid thereof, and preferably hygiene and cleaning product has at least one first ply (42; 62; 84; 104) with at least one embossing pattern including embossed depressions starting from a base plane of the ply; the embossed pattern being characterized by the following features: the embossing pattern has a minimum motive surface area of at least 3 cm×3 cm; the pattern includes a high number of embossed depressions which are sized and/or positioned such as to form a motive element covering the motive surface area; wherein at least some of the embossed depressions are sized and/or positioned such that minimum distances between pairs of consecutively arranged embossed depression vary. A method for producing such a fibrous product is also described.

The present invention refers to a method of producing a coated paper or paperboard, but excluding photographic papers, comprising the steps of: (a) forming a free flowing curtain comprising at least one layer, whereby the composition forming at least one layer of the free flowing curtain has a high shear viscosity of at least about 50 mPa.s, and (b) contacting the curtain with a continuous web substrate of basepaper and paperboard.

A converting line for producing a paper product. The converting line includes a paper web being unwound from a parent roll. The paper web has a plurality of sections with at least one mark having a paper rating assigned to each of the plurality of sections. The converting line also includes a mark reading unit that reads at least one of the plurality of marks on the paper web and produces a corresponding output. The converting line includes a controller that receives the output from the mark reading unit, and is configured: (i) to obtain the paper rating associated with the at least one mark read by the reading unit, and (ii) to change at least one operational parameter of the converting line based upon the paper rating. The converting line also includes a finisher. The paper web is fed to the finisher and converted into a paper product.

In the conventional process of producing a coated paper, the use of a furnish that is characterized by a base sheet fiber content made of about 60 to 85 weight percent of a bleached thermomechanical pulp (TMP), about 10 to 35 weight percent of a bleached chemical pulp and 0 to about 15 weight percent of a deinked pulp, and also comprising about 12 to 20 weight percent of an inorganic filler, with a freeness below 50 ml Csf and a brightness over 75° ISO, gives a coated paper of the same or superior quality and at a much lower cost than the usual coated paper obtained through a conventional process.

The present invention provides a paper product having at least one ply, wherein only one outer surface of said tissue paper has a polyhydroxy compound and a lotion applied thereto.

The invention discloses a coated white-top kraft liner board, which comprises a coating layer, a surface layer, a lining, a bottom layer and a glue application layer, wherein the coating layer at least comprises two coating separated layers orderly arranged on the surface layer, and the coating separated layer positioned on the topmost has a level and smooth surface; the glue application layer is arranged on the surface of the bottom layer; and the ration of the coated white-top kraft liner board is between 120 and 220g/m, and the coating weight of the coating layer is between 12 and 40g/m. The invention also discloses a manufacturing method for the coated white-top kraft liner board. The invention adopts a compound coating method of film transfer coating and scraper coating, and the produced coated white-top kraft liner board well combines the advantages of a white-top kraft liner board and a high weight coated paper, has strong strength and good performance of indexes of lustrousness, smoothness and printability of the paper surface in the condition of low ration, and completely meets the requirement of advanced printing and packaging.

The invention provides a fruit fresh-keeping paperboard and a preparation method thereof. The fruit fresh-keeping paperboard consists of paperboard base paper and fresh-keeping coat which is spread on the surface of the paperboard base paper. The paperboard base paper is mainly made from the waste paper, and the base weight is 90 to 100 g/m2. The fresh-keeping coat mainly comprises the following components in part by weight: 1 part of cristobalite, 0.25 to 1.5 parts of kaolin, 0.005 to 0.01 part of sodium polyacrylate, 0.0003 to 0.0005 part of nisin, 0.0001 to 0.0003 part of natamycin, 0.2 to 0.5 part of oxidized starch and 1.0 to 2.0 parts of water, and the base weight is 5 to 30 g/m2. The waste paper is made into the paperboard base paper through, disintegration, high-consistency slag removal, defibering, low-consistency slag emoval and screening, the cristobalite, kaolin, the sodium polyacrylate, the nisin, the natamycin and water are added into a high-speed dispersion machine to be made into pigment dispersion liquid after being adequately dispersed and filtered, and the oxidized starch and the water are heated to be dissolved to obtain the oxidized starch liquid. The pigment dispersion liquid is mixed with the oxidized starch liquid to obtain the fresh-keeping paint liquid, after being filtered by 180 to 200-mesh sieve, the fresh-keeping paint liquid is spread onto the surface of the paperboard base paper through a spreading machine, and the paperboard base paper with the surface being coated with the fresh-keeping paint is secondarily dried, press finished and decorated to obtain the finished product. The fruit fresh-keeping paperboard has the advantages that the fresh-keeping effect is good, the environment compatibility is good, the fresh-keeping package and the storage and transportation package are integrated, and the continuous mass production can be realized on the papermaking machine.

A printing sheet is described comprising a substrate and, on at least one side of the substrate, an image receptive coating layer with a cumulative porosity volume of pore widths below 200 nm as measured using nitrogen intrusion methods of more than 0.006 cm³ per gram paper. In particular in the context of printing sheets with high-gloss this particular porosity distribution leads to a quick and easily adjustable ink setting behaviour. Additionally a method for manufacturing such a printing sheet is described using organic, i.e. polymer and inorganic particulate pigments of fine particle characteristics.

A dull coated printing paper that is bulky (low in density) having a density of 0.90 to 1.15 g/cm³ and yet offers excellent pliability, superior surface smoothness, high degree of print gloss and minimal small-scale gloss variations in the image area are obtained by forming a coating layer comprising a pigment and an adhesive on a base paper which contains an organic compound having an action to inhibit binding between pulp fibers and then carrying out calender treatment at a line pressure for the treatment of 50 to 150 kg/cm.

The invention discloses a preparation method of a self-repair super-hydrophobic polyurethane coating. According to the preparation method, first a porous material is added to a saturated solution of a low-surface-energy matter, and is distilled to dry in a constant temperature oil bath to obtain a hydrophobic porous material with a self-repair function, then the hydrophobic porous material and ethyl orthosilicate or a polyurethane prepolymer are dispersed in an organic solvent, a dipping or spraying method is used, after curing a coating with super hydrophobic function is obtained, and the super hydrophobic property of the coating can be self-repaired. The preparation method has the advantages of simple process, mild condition and low cost.

An image supporting medium includes a raw base paper, and a film forming resin disposed on at least one side of the raw base paper, wherein the raw base paper is formed of fibers from between 0.5 and 3.0 mm in weighted average length. Additionally, the image supporting medium includes from between 1 and 40% filler by weight.

A method for coating paper, wherein a coating composition containing coating particles is applied to the surface of a paper web containing lignocellulosic fibers to produce a coated paper web having coating particles bound to the paper web, and the coated web is dried. According to the method the surface area of the interface between the paper web and the coating particles is increased in order to enhance hydrogen bonding between the coating particles and the fibers of the web. The surface area can be increased by using a coating composition comprising fine fibrous material or by abrading the surface of the paper or paperboard web or both. The invention will improve the smoothness of the surface without addition of foreign polymer binding agents to the web.

The invention discloses a light coated white craft paper, which comprises a top layer, a core layer, a bottom layer and a coating layer, wherein the coating layer is arranged on the top layer, has a relatively uniform thickness and goes up and down with the surface of the top layer; and the fixed weight of the light coated white craft paper is 120 to 220 g/m and the coating weight of the coating layer is 6 to 15 g/m. The invention also discloses a method for manufacturing the light coated white craft paper. With the combined advantages of the conventional white craft paper and heavy coated paper, the light coated white craft paper has a thin coating layer and retains the strength of base paper, thereby realizing an extremely low fixed weight that can greatly improve the paper yield of unit weight and reduce production costs for users. At the same time, less coating content reduces the difficulties in the recovery of the light coated white craft paper, reduces water pollution and brings the light coated white craft paper a promising development prospect.

Improved coating compositions for flexographic and other printing applications can comprise calcined clay, a binder and optionally one or more additional pigments. In some embodiments, the binder can comprise a natural composition and a synthetic composition. In addition, the coating composition can further comprise additives such as, for example, dispersants, defoamers, plastic pigments, rheology modifies, biocides, optical brighteners, cross-linkers, functional chemicals and combinations thereof. Due to the presence of the calcined clay, the improved coatings can have sufficient porosity to absorb water located in ink layers without employing significant amounts of expensive additives such as silicates and other porous compounds.

A paper web and a method of marking a paper web. The paper web includes a surface having a plurality of sections. At least one section of the plurality of sections has a plurality of positions. The plurality of positions each have an equal length and are obtained by subdividing the at least one section. The paper web also includes ink applied to the surface of the paper web at some of the plurality of positions. The method includes applying a first mark and a second mark to a paper web. The first mark has a start position and is coded to convey an identifier for the paper web. The second mark includes a start position and is coded to indicate a position on the paper web. The start position of the second mark is a predetermined distance after the start position of the first mark.

The invention discloses low-specific-gravity stone paper relating to synthetic paper. The low-specific-gravity stone paper comprises a base paper layer and a coating layer, wherein the coating layer is coated on the base paper layer; the base paper layer comprises 15-30 parts by weight of synthetic resin and 70-85 parts by weight of mixing material, wherein the synthetic resin is polylactic acid, EVA (ethylene vinyl acetate copolymer), PP (polypropylene), PE (poly ehtylene) or a mixture of any two of the polylactic acid, the EVA, the PP and the PE; the mixing material is a hollow glass ball, coal ash or the mixture of the hollow glass ball and the coal ash; and the coating layer comprises 20-40 parts by weight of acrylic resin, 20-40 parts by weight of lithopone and 30-50 parts by weight of deionized water. The low-specific-gravity stone paper has the following benefits: the mixing material is the hollow glass ball or coal ash so that the mixing material has low specific gravity and good dispersity; the lithopone has good covering power, thus the weight of the paper is convenient to reduce, the paper quality is improved, and the manufacturing cost is reduced.

The invention discloses a paper based composite light absorption material for efficient photothermal conversion and a preparation method thereof. Carbon black particles in commercial carbon black inkare deposited on a filter paper surface by ultrasonic loading, the preparation method is simple, low in cost, and green and environment-friendly, and a composite light absorption material characterized by broad spectral response range, high photothermal conversion efficiency and strong hydrophilcity can be obtained, is easy for mass production and wide application, enriches the existing photothermal material field, and fills the blank of the technical field. At the same time, by utilizing the efficient photothermal conversion characteristic, the paper based composite light absorption materialprovided by the invention can be applied to seawater desalination, can meet the social requirement for rapid acquisition of purified water, and also provides a new way for photothermal utilization ofsolar energy.

The invention discloses a coated white-top kraft liner board, which comprises a surface layer, a lining and a bottom layer, and also comprises two glue application layers and a coating layer; the two glue application layers are respectively arranged on the surface of the bottom layer and the surface of the surface layer; the coating layer at least comprises a coating separated layer orderly arranged on the surface layer, and the coating separated layer positioned on the surface has a level and smooth surface; and the ration of the coated white-top kraft liner board is between 120 and 220g/m, and the coating weight of the coating layer is between 12 and 28g/m. The invention also discloses a manufacturing method for the coated white-top kraft liner board. The invention adopts a coating method that a film transfer machine performs double-sided glue application on a base paper board and then scraper coating is performed; and the produced coated white-top kraft liner board has good strength index, and good performance of lustrousness, smoothness and printability of the paper surface on the premises of low coating weight and low ration, and can completely meet the requirement of advanced printing and packaging.

The invention discloses a manufacturing method of Pinfeng base paper. The method comprises the following processing steps: pulping and preparing softwood pulp and hardwood pulp respectively; adding auxiliary materials; making wet paper sheets; carrying out pre-drying and surface sizing treatment; and carrying out post-drying, calendaring and finishing. Through research on slurry selection, slurry proportioning, a beating technology, a functional chemical additive added to the slurry and a digital printing assistant, measures of calendaring and the like are carried out by film-transfer surface sizing treatment by soft calendaring equipment; and the qualified Pinfeng base paper is manufactured by referring to related paper machine parameters. Compared with ordinary logistics label middle paper, the Pinfeng base paper has the advantages of low gram weight, high tensile strength, good internal bonding strength, high smoothness, low hygroscopic property, good surface strength, good digital printing effect, fine paper surface and good hand feeling, and is capable of completely replacing the ordinary logistics label middle paper and reducing the production cost for customers.