(57) Abstract:Filter material containing cotton cellulose and activated charcoal and made a double layer with the first layer for mechanical retention of the impurities and the second absorbing layer, wherein the first layer contains cotton cellulose and additionally diatomite in the following ratio, wt.%:
Cotton cellulose - 50 - 55
Diatomite - 45 - 50
and the second layer contains cotton cellulose and activated charcoal in the following ratio, wt.%:
Cotton cellulose - 75 - 78
Active coal - 22 - C
SUBSTANCE: invention is related to banknote with reinforcing strengthening and counterfeit protection facilities. Reinforcing strengthening is arranged with metal tissue with Russian Federation coat of arms contour woven on it. As counterfeit protection facility, signal chips are used, which under action of light change colour with generation of light signal by chips. At the same time metal tissue and signal chips are arranged with thickness of 8-10 mcm.
EFFECT: invention has extended service life and has high extent of counterfeit protection.
SUBSTANCE: composition contains carrier starch and secondary starch. The carrier starch contains (in terms of dry mass), less than 50% pre- gelatinised starch and has higher sensitivity to alkali than the secondary starch. The secondary starch is selected from a group comprising maize starch, potato starch, wheat starch and a mixture of two or more of the said types of starch. The carrier starch is selected from a group comprising wheat starch, potato starch, cassava starch, barley starch and a mixture of two or more of the said types of starch. The composition contains (in terms of dry mass) 0.5-60% carrier starch, 40-99.5% secondary starch and 1-8% alkali. The composition also contains (in terms of dry mass) 0.1-3.5% boron compound. An adhesive is obtained by adding the composition to water and stirring while adding a sufficient amount of alkali. The adhesive is used to make corrugated cardboard and multilayer materials. The advantage of the adhesive composition lies in that it can be easily prepared with low expenses on time and equipment.
EFFECT: use of the adhesive improves quality of cardboard, reduces adhesive consumption and increases rate of production.
25 cl, 6 tbl, 1 ex
SUBSTANCE: invention can be used in production of tissue paper. Surface-treated natural calcium carbonate is used as filler in tissue paper products, where said calcium carbonate is a product of reaction of natural calcium carbonate with an acid and carbon dioxide. The carbon dioxide is formed in situ by treatment with the acid and/or is fed from an external source. The surface-treated natural calcium carbonate is obtained as an aqueous suspension having pH higher than 6.0, measured at 20°C.
EFFECT: invention improves softness of tissue paper products such as facial tissue, toilet paper, ornamental paper, towels, napkins or tissue paper cloths.
47 cl, 1 dwg, 5 tbl, 3 ex
SUBSTANCE: invention relates to a method of manufacturing a smooth or ultra-smooth sheet material for overprinting. It comprises the following steps: manufacturing a multilayer structure consisting of a lower layer of plastic film, an intermediate anti-adhesive layer, and also an outer layer for overprinting, gluing one side of the substrate or the upper side of the layer for overprinting, placement of the substrate on the layer for overprinting with their laminating followed by removal of the plastic film from the layer for overprinting, and this layer for overprinting forms on the sheet of smooth or ultra-smooth side.
EFFECT: invention provides creation of an ultra-smooth sheet material suitable for overprinting and suitable for complete recycling, when possible.
25 cl, 6 dwg, 8 ex
SUBSTANCE: substrate based on cellulose fibres, in which at least one surface is covered with layer, containing water-soluble polymer, which has hydroxyl functional groups, part of which have already reacted with organic molecule, which contains vinyl functional group and aldehyde functional group, which is in form of hemiacetal or acetal, as well as method of obtaining substrate based on cellulose fibres and its application for siliconising.
EFFECT: invention provides improvement of substrate based on cellulose fibres, namely cross-linking and silicone fixation, reduction of quantity of catalyst and silicon, used at the stage of siliconising.
15 cl, 7 dwg, 4 tbl, 8 ex
FIELD: textiles, paper.
SUBSTANCE: invention relates to the pulp and paper industry and relates to napkin paper and a method of its production. The paper consists predominantly of a structure of two types of hydrophilic cellulosic fibres different in coarseness of fibres, and comprises a strength increasing additive. Two types of hydrophilic cellulosic fibres represent the first pulp, which has the fibre coarseness of from 0.13 to 0.16 mg/m, and the second pulp which has the fibre coarseness of from 0.17 to 0.20 mg/m. The difference in fibre coarseness between the first pulp and the second pulp is from 0.01 to 0.07 mg/m. The structure has a degree of fineness of 400 to 550 ml.
EFFECT: invention provides a napkin paper having good properties of strength and permeability.
18 cl, 8 dwg, 6 tbl, 4 ex
FIELD: textiles, paper.
SUBSTANCE: method of manufacturing coated paper and applying the liquid coating on the ribbon-like paper web with the formation of the plurality of bands extending in the width direction of the web and spaced from each other in the longitudinal direction of the web, comprises: a step (S1) of applying coating for applying the liquid coating on the web with the formation of bands with the pitch of bands of coating narrower than the constructive pitch of bands, defined as standard for coated paper; a step (S2) of postprocessing carried out after the step of applying coating, for drying the web; and a step (S3) of applying tension, carried out after the step of postprocessing, to increase the pitch of bands of the web by applying tension to the web to make the pitch of bands of the web get closer to the constructive pitch of bands.
EFFECT: invention enables to obtain the coated paper having bands in accordance with the constructive pitch of bands even if the web shrinks during the manufacturing.
28 cl, 6 dwg
FIELD: textile and paper; hygiene.
SUBSTANCE: invention relates to sanitary and hygienic purpose paper. Cellulose sanitary and hygienic purpose paper includes cellulose fibres, selected from a group, consisting of chemically pulped fibres, and mechanically pulped fibres. Cellulose fibres contain about 10 wt% to about 50 wt% eucalyptus fibres with content of lignin of at least about 20 wt%, and about 3 wt% to about 10 wt% of regenerated cellulose microfibres. Invention also discloses a method of producing paper and a paper product.
EFFECT: invention enables to replace eucalyptus Kraft fibre in toilet paper.
79 cl, 51 dwg, 23 tbl
FIELD: textile, paper.
SUBSTANCE: wood pulp for the glass plates release paper production is an object of the invention. Silicone content in the noted wood pulp is 0.5 ppm or less of the bone dry wood pulp weight, release paper for glass plates made of the noted wood pulp, and release paper for glass plates, the starting material for the production of which is a wood pulp, in what connection the silicone content in the noted paper is 0.5 ppm or less of weight of bone dry paper. Furthermore, glass plates and release paper laminate, and the wood pulp application for the glass plates release paper production are the objects.
EFFECT: release paper for glass plates produced of the wooden pulp according to the present invention, and the release paper for glass plates according to the present invention enables significant control of pollution with silicone of glass plates surface used as substrates for flat panel displays, which require a high degree of purity and high quality.
19 cl, 1 tbl, 3 ex
FIELD: manufacturing technology.
SUBSTANCE: invention relates to a counterfeit-proof paper and concerns a paper sheet of high wear resistance for producing banknotes. Sheet comprises a fibrous base and a protective coating fully covering at least one side of the fibrous base. Said coating contains at least one basic layer on the side of the fibrous base and an outer suitable for printing layer based on polyurethane covering the basic layer. Basic layer contains polyolefin or polyvinylidene chloride (PVDC).
EFFECT: invention provides creation of a paper for producing banknotes having high wear resistance.
28 cl, 12 tbl, 5 ex