39results about How to "Low tightness" patented technology

This invention provides a kind of paper with special use, especially in low-tightness electrolytic capacitor and diaphragm cells, which at least comprises two fibers: one is aromatic polyamide fiber, other is bio-cellulose fiber, the former used as frame of paper, weighing 20%-65% of amount, the latter filled among aromatic polyamide fibers, weighing 35%-80%. The invention has advantages of low-tightness, absorbent quality, and improves electric property of electrolytic capacitor and cells and increases service life.

The invention relates to a fire-proof assembly of an electric appliance cabinet. The fire-proof assembly comprises a flame-retardant gas storage box and a flame-retardant gas storage box closing assembly. The flame-retardant gas storage box is an enclosed box body fixed inside an electric appliance cabinet and is filled with flame-retardant gas; a plurality of vent holes are formed in the positions, corresponding to a sealing cover, of the top of the flame-retardant gas storage box; a sealing cover is arranged inside the flame-retardant gas storage box; and a plurality of plugging blocks corresponding to the vent holes are arranged at the sealing cover. The flame-retardant gas storage box closing assembly consists of a support rod fixed inside the electric appliance cabinet; a plurality of tensioning bars are fixed at the support rod; one end of each tensioning bar is fixed at one plugging block; and the tensioning bars are made of elastic materials. The sealing cover is in close contact with the top of the flame-retardant gas storage box under tensioning of the tensioning bars, so that the plugging blocks can be embedded into the vent holes.

The invention belongs to the technical field of a coating white paper board production method. A high-grade coating white paper board production process comprises the steps of pulping and paper making, wherein the pulping step adopts the separated and segmented beating modes including surface pulp beating, lining pulp beating, core pulp beating and bottom pulp beating, the paper making step comprises a net part, a squeezing part, a drying part and a coating and QCS (quality control system) control system, and in addition, a film transfer sizing machine is added in the middle of the drying part. Modes completely different from the traditional mode are adopted in the coating white paper board beating process and the paper making process, the process improvement is carried out on several key control points, the technical indexes are correspondingly regulated, the energy consumption is reduced, and the subsequent paper making quality is also improved, so the quality of finished product paper is always controlled to be higher than the nationally specified A grade (high grade) index.

The invention belongs to the technical field of coated white board pulping methods. A coated white board pulping process low in energy consumption is in separated and segmented pulping mode and comprises surface pulp pulping, lining pulp pulping, core pulp pulping and bottom pulp pulping. Bottom pulp and core pulp respectively undergo intermediate-concentration continuous disintegration, and the concentration is 4-5%; lining pulp undergoes high-concentration disintegration, and the concentration is 13-18%; when the beating degree of surface pulp reaches or exceeds 45 degree SR at any production stage, knife-adding pulping is not performed, and pulp is only defibered to pass through a production line; and when the beating degree of the lining pulp, the beating degree of the core pulp and the beating degree of the bottom pulp reach 35 degree SR at any production stage, knife-adding pulping is not performed, and the pulp is only defibered to pass through the production line. A mode completely different from the tradition is adopted in the coated white board pulping process, corresponding adjustment is performed on several key control indexes, and not only is energy consumption reduced, but also follow-up papermaking quality is improved.

The invention relates to a method for making handmade paper by a dry method, wherein, bamboo is adopted as raw material, dry paper pulp is obtained after the bamboo is crashed, a dry paper pulp sheet can be obtained from the dry paper pulp by extrusion, the dry paper pulp sheet is further dispersed into fiber, and the dry paper pulp fiber enters an air channel in the suspension form under the action of an airflow generated by an induced draft fan and is intercepted by a polyester net to form a uniform dry paper pulp layer which is covered with a fixed layer; under the holding of the upper fixed layer and the lower polyester net, wet paper is formed by the dry paper pulp layer treated with water absorption by a water supplying tank, the wet paper is separated from the fixed layer and the polyester net after being extruded, and the handmade paper can be obtained form the separated wet paper by drying. The method for making the handmade paper has only one harmful chemical, i.e., alkali liquor which is added in the production process, and gas and liquid are not discharged in the production process to pollute the environment; in the pulping process, the pulp outcome rate of the raw material reaches more than 95 percent, the sizing agent does not need washing and can not be lost, thus utilizing the bamboo resources maximally and saving the raw material.

The invention relates to a producing method of firecracker paper as featured as hand-made paper mechanically produced. After bamboo pulp and fiber material of waste paper pulp are crushed and mixed to obtain mixture, direct red is added to the mixture, and urea resin or cationic PEI (polyethyleneimine) is added as dyeing auxiliary; swelling agent and flame retardant are added to firecracker paper pulp in the pulp grinding section; according to actual production conditions, the firecracker paper is produced through raw waste paper pulp and bamboo pulp ratio adjustment, pulp grinding control, pressing phase roll press adjustment and cylinder drying. Compared with the traditional firecracker paper mechanically produced, the firecracker paper has tightness decreased by 15%, tensile strength increased by 20% and colorimeter-measured redness increased by more than 30%; the problem that the firecracker paper mechanically produced is insufficiently red, fails to be completely broken after set off and becomes black is solved.

The invention discloses a double brocade weaving label and a weaving method thereof. The double brocade weaving label is composed of a warp system and 3 to 12 weft systems, and the weft system is based on "ground" , including the ground tissue layer, the lining ground tissue layer and the net shuttle tissue layer in turn; the fabric structure of the ground tissue layer is to combine the warp yarns with fixed interval value with the weft surface structure of the common woven label ground structure, and make the ground shuttle weft yarns in the The warp yarns are all up and formed; the fabric structure of the mesh shuttle weave layer is formed by carrying out mesh shuttle interweaving only on the independent layers formed by the warp yarns drawn at a fixed interval value; the fabric structure of the lining fabric layer is After interweaving the lining weave corresponding to the ordinary double-brocade label with warp yarns drawn at fixed intervals, and combining the fabric weave of the mesh shuttle weave layer, the weft yarn of the lining shuttle is stretched at the mesh shuttle weave point and its warp direction. And formed. The warp-drawing mesh shuttle method of the present invention avoids the color see-through phenomenon of the multi-color shuttle double-brocade label with light-colored ground and dark-colored flowers.

The invention provides a coating process of single-sided blue engineering paper. The coating process comprises a paint preparation step, and according to the paint preparation, solid content of paintis 2%-3%, viscosity of the paint is 3-5 mpa.s, and pH value of the paint is 8.2-8.4. The paint is prepared from components in percentage by mass as follows: 0.2% of a color toner, 1.5% of latex, 0.1%of CMC and 0.08% of isothiazolinone. According to single-sided blue engineering paper prepared with the process, deviation of basis weight in cross direction is smaller than or equal to 3 g / m<2>, dustcontent is lower than or equal to 40 / m<2>, and water content is 4.2%-4.7%.

The invention provides a paper making process of single-side blue engineering raw paper. The process comprises a pulp preparation step; the pulp preparation includes the preparation of long fiber pulpand the preparation of poplar pulp. For the preparation of long fiber pulp, bleached sulfate needle leaf long fiber wood pulp with the fiber length being 2.5 to 2.7mm is used; the pulping concentration is 4.0 to 4.3 percent; the pulping degree is 38 to 40 degrees SR. For the preparation of poplar pulp, the pulping concentration is 4.0 to 4.3 percent; the pulping degree is 36 to 38 degrees SR. Theink absorption rate of the prepared single-side blue engineering raw paper is 42 to 45 percent.

The invention relates to a high definition copper paper board with a secure line and a manufacturing technique thereof. The copper paper board is formed by coating a high solid content dope combined by a white pigment and a cementing compound evenly on a base paper and being dried as well as rewound. The manufacturing technique comprises the following steps that: 1. a common offset paper is selected as a base paper, a coating machine is adopted to coat an ink absorbing layer dope formed by mixing the white pigment and the cementing compound; 2. a cast coater is adopted to coat a specular layer dope mixed by a silicasol or a colloidal alumina and the cementing compound on the surface of the ink absorbing layer dope after dried; 3. the process the same as the step 2 is performed, the secureline with the back surface applied by the glue is arranged at the designed position on the ink absorbing layer dope layer and below the specular layer dope by means of the match of a small-sized compression roller which is arranged for matching the cast coater; 4. a mirror cylinder of the cast coater is adopted to perform the pressing and glazing processes on the paper surface after the secondary coating after the paper is dried and dewatered; 5. the post sorting, cutting and rewinding processes are performed to form finished products.

The invention relates to an insole board for a shoe. The insole board comprises, by weight, 45-55 parts of fiber paper pulp and 45-55 parts of bleached sulphate wood pulp. The net mounting concentration of papermaking slurry obtained after the fiber paper pulp and the bleached sulphate wood pulp are mixed ranges from 2.5 wt% to 3.5 wt%. The invention further relates to a preparation method of the insole board for the shoe. The insole board for the shoe has the advantages of being low in tightness, light and soft in material, good in dimensional stability, good in anti-folding performance, good in internal bonding strength, good in surface wet abrasion resistance and good in punching performance during processing.

The invention discloses a tipping paper base paper with functions of clearing away heat and relieving alcohol, which is characterized in that it is prepared from the following raw materials in parts by weight: 3-4 parts by weight of ashweed, 1-2 parts of nigella seed oil, and 41 parts by weight of pomegranate pulp -46, cork pulp 52-55, pterygium 2-4, mannitol 1-1.5, Hovenia dulcis 1-2, taurine 0.5-0.7, activated clay 3-4, iron oxide yellow 1-2, Carboresin 2-3, Ammonium Bicarbonate 1-1.6, Calcium Peroxide 2-2.5, Calcium Propionate 1-2, Auxiliary 1-2, appropriate amount of water; the present invention adds Pterocephala clearing heat and detoxifying, Hovenia dulcis Alcohol poisoning, the production of tipping paper base paper has certain health effects, suitable for social use, adding additives, not only can increase the amount of tar adsorption, but also has a natural fragrance, fresh and pleasant, reducing bad breath, and the fiber distribution of the product of the present invention Uniform, small fluctuations in thickness, tightness, air permeability and other indicators, easy to print.