摘要:
The invention relates to a method for production of an auto-adhesively bonded, porous, pressure-resistant molding made from comminuted lignocellulosic fibrous materials that are processed at temperatures between 120° C. and 180° C. and a pressure between 2 bar and 8 bar to yield a fiber suspension that is subsequently filled into a mold or applied to a carrier and dried without the addition of a synthetic binder.
摘要:
A process for producing paper or board, which process comprises ad-mixing (I) an aqueous composition of pH ≦6 and (II) at least one water-soluble polymeric anionic compound to a paper stock having a pH in the range from 6 to 8 and then dewatering the paper stock by sheet formation and drying, wherein the aqueous composition comprises (a) polymers having primary amino groups and/or amidine groups to a combined content for these groups of ≧1.5 meq/g of polymer, and (b) 0.01 to 50 mol % of 1,4-cyclohexanedione (b) based on the combined amount of primary amino groups and/or amidine groups of the polymers, and also to the paper or board thus obtained.
摘要:
The invention relates to a thermal sublimation paper which can be printed with inks containing a sublimatable dye, in particular ink-jet inks, in which paper a hydrophilic thermal transfer layer to be printed is formed on a porous base paper. Thermoplastic particles with an average particle size of between 0.3 and 5 μm and a melting point of between 35° C. and 190° C. are present in the thermal transfer layer. This thermal sublimation paper can be advantageously produced as follows: an aqueous coating slip is applied to a porous base paper having a Cobb value of between 55 and 150 g/m2, in particular between 70 and 150 g/m2, in a paper-making or coating machine, online or offline, said aqueous coating slip containing thermoplastic particles and constituents suitable for forming a hydrophilic thermal transfer layer, and a drying step is subsequently carried out in order to obtain the thermal sublimation paper. The thermal sublimation paper can be used advantageously to mint flat materials, in particular films and textiles.
摘要:
The present invention concerns a process for continuously coating a cellulose-based fibrous substrate web with fatty acid chloride, comprising the steps of a) pre-drying a cellulose-based fibrous substrate web to an EN ISO 638:2008 dry matter content of less than 10%; b) coating the cellulose-based fibrous substrate web pre-dried in step a) with a liquid fatty acid chloride composition at a DIN EN 20187 relative humidity of less than 20 rH and a temperature below the boiling temperature of the liquid fatty acid chloride composition; c) thermally treating the coated cellulose-based fibrous substrate web obtained from step b).
摘要:
A low ignition propensity cigarette has wrapping paper (6) wrapping filling material into a rod-like shape, and the wrapping paper (6) includes highly conducting bands (10) formed by calendering and arranged in a longitudinal direction of the cigarette, the highly conducting bands (10) having higher thermal conductivity than inherent thermal conductivity of the wrapping paper (6), and burning depression bands (16) formed in the wrapping paper (6) and superposed upon the respective highly conducting bands (10).
摘要:
Textiles are provided that include fibrous cellulosic materials having an α-cellulose content of less than about 93%, the fibrous materials being spun, woven, knitted, or entangled. The fibrous cellulosic materials can be irradiated with a dose of ionizing radiation that is sufficient to increase the molecular weight of the cellulosic materials without causing significant depolymerization of the cellulosic materials. Methods of treating textiles that include irradiating the textiles are also provided.
摘要:
An inkjet printing apparatus for printing an image on an absorbent substrate includes a print head unit and a dust removal device. The absorbent substrate includes a print side and an opposite side and is conveyed between the print-head unit and the dust removal device. The print head unit defines a print zone on the print side. The dust removal device includes a pumping chamber formed of a pre-pumping sub-chamber, a print zone sub-chamber, and a post-pumping sub-chamber, said chambers being positioned at the opposite side. The pre-pumping sub-chamber is positioned substantially upstream from the print zone. The print zone sub-chamber is positioned substantially at the print zone. The post-pumping sub-chamber is positioned downstream from the print zone. A second pressure in the print zone sub-chamber is higher than a first pressure in the pre-pumping sub-chamber and a third pressure in the post-pumping sub-chamber so as to create a suction impact to dust particles generated by the conveyed absorbent substrate.
摘要:
Objective of the method is a procedure for production of nanocellulose, where energy consumption and other costs of production are lower than in methods presented previously. It is based on separation of minute particles from cellulose or plant based ingredients by effects of light, thermal energy or water-soluble organic solvents. These particles act as precursors of nanocellulose. After separation they form in dry state aerosol, in liquid media a suspension, and combine to chains, microfibrils and secondarily formed fibrils, which form further networks with each other or with other fibres and fibrils. Applications are based on their action as reinforcing structure in composites, paper, cardboard, paints and other materials, on forming thin-layer films for electrical, electronic and medical applications, or on viscosity, surface and permeability properties.
摘要:
A base material for a lithium ion secondary battery separator provided by the present invention comprises a polyethylene terephthalate fiber, in which an average fiber diameter of the polyethylene terephthalate fiber is 9.0 μm or less, a specific X-ray diffraction intensity derived from the polyethylene terephthalate fiber is 300 cps/(g/m2) or more, and a coefficient of variation of a specific X-ray diffraction intensity is 12.0% or less, and is excellent in the workability during production and excellent in mechanical strength, uniformity and handling in a subsequent treatment step.
摘要翻译:本发明提供的锂离子二次电池用隔膜用基材包括聚对苯二甲酸乙二醇酯纤维的平均纤维直径为9.0μm以下的聚对苯二甲酸乙二醇酯纤维,来自聚对苯二甲酸乙二醇酯的特定X射线衍射强度 纤维为300cps /(g / m 2)以上,特定X射线衍射强度的变异系数为12.0%以下,制造时的加工性优异,机械强度,均匀性和处理性优异 随后的处理步骤。
摘要:
An inkjet printing apparatus for printing an image on an absorbent substrate includes a print head unit and a dust removal device. The absorbent substrate includes a print side and an opposite side and is conveyed between the print-head unit and the dust removal device. The print head unit defines a print zone on the print side. The dust removal device includes a pumping chamber formed of a pre-pumping sub-chamber, a print zone sub-chamber, and a post-pumping sub-chamber, said chambers being positioned at the opposite side. The pre-pumping sub-chamber is positioned substantially upstream from the print zone. The print zone sub-chamber is positioned substantially at the print zone. The post-pumping sub-chamber is positioned downstream from the print zone. A second pressure in the print zone sub-chamber is higher than a first pressure in the pre-pumping sub-chamber and a third pressure in the post-pumping sub-chamber so as to create a suction impact to dust particles generated by the conveyed absorbent substrate.