50 results about "Fine paper" patented technology

The present invention provides a system for classifying the type of input media entering an inkjet or other printing machine without requiring any special manufacturer markings to identify the media. The leading edge of the input media (170) is optically scanned with a violet light (520) to obtain diffuse reflectance (200) and specular reflectance (200') values. These reflectance values ​​are Fourier transformed to produce a spatial frequency signal for the input medium. Compare this spatial frequency with known values ​​for different media types, in terms of major categories such as transparencies, glossy photo media, fine paper, plain paper, and within these categories such as matte photo premium media and very glossy photo media and other specific media types to classify input media. Select the optimal print mode for a given media type, producing outstanding images without user intervention. A printing machine for implementing the method is also provided.

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.

The present invention is twisted paper yarn produced through twisting fine paper tape with yarn silk, hemp fiber or cotton fiber. The present invention also discloses fabric of the said twisted paper yarn and other fiber yarn. The paper is Chinese Xuanzhou paper, Korean paper or Japanese paper. The fabric with the twisted paper yarn is light, thin, easy to dye, permeable, easy to water, easy to dry and environment friendly, and may be used in fashionable dress, common clothing, towel, etc.

A foamed product that generates no smoke when incinerated, has a low calorific value, and achieves a desired dimension and thermal insulation performance is provided. A foamed product 1 is formed by heat-mixing, in an extruder 11, a paper pellet 7 that is a mixture of a fine paper powder having a particle diameter of 30 to 200 μm and starch, a container recycle pellet 8 that is a mixture of polypropylene, polyethylene, and polystyrene, foamable polypropylene 9, and water 10. A weight distribution is set so that the paper pellet 7 is 50 to 65% by weight, the container recycle pellet 8 is 13 to 25% by weight, the foamable polypropylene 9 is 10 to 30% by weight, and the water 10 is 10 to 20% by weight to these resins and other materials.

A continuous filler treatment process has been developed to enhance the fixation of anionic latex on filler in a short time. In this process anionic polymer dispersions (latex) are added to common papermaking filler slurries at ambient temperature and then mixed with water of temperature higher than the glass transition temperature (T_g) of the latex used. To efficiently fix the latex the temperature of the filler/latex mixture must be 30-60° C. higher than the T_g of the latex used. The chemical composition of the resin and the type of surfactant used during the emulsion polymerisation process of the polymer latex dispersions are important factors for efficiently fixing the latex onto the filler by adding hot water and improving the properties of paper made with the treated filler. The enhanced fixation of anionic latex onto filler using hot water is done in mixing vessels that can control shear and mixing time. The anionic latexes applied by this process are totally and irreversibly fixed or bound onto the filler particles and the aggregated filler slurry is stable over time. The latex-treated filler slurry can be added to papermaking furnishes at any point prior to the headbox of the paper machine or stored for later use. It can be added to wood-free or wood-containing furnishes commonly used for making fine papers, mechanical pulp papers, and multi-ply paperboards. The latex-treated filler slurry improves filler retention, only slightly reduces sheet strength and improves sizing performance. Furthermore, latex-treated calcium carbonate filler, such as precipitated calcium carbonate (PCC), is more acid-resistant and, when used in manufacturing mechanical pulp paper under neutral conditions, less acid is needed to control the pH.

A foamed product that generates no smoke when incinerated, has a low calorific value, and achieves a desired dimension and thermal insulation performance is provided. A foamed product 1 is formed by heat-mixing, in an extruder 11, a paper pellet 7 that is a mixture of a fine paper powder having a particle diameter of 30 to 200 μm and starch, a container recycle pellet 8 that is a mixture of polypropylene, polyethylene, and polystyrene, foamable polypropylene 9, and water 10. A weight distribution is set so that the paper pellet 7 is 50 to 65% by weight, the container recycle pellet 8 is 15 to 25% by weight, the foamable polypropylene 9 is 10 to 30% by weight, and the water 10 is 10 to 20% by weight to these resins and other materials.

The invention relates to a styrene-acrylic emulsion, a preparation method thereof, and an application thereof. The styrene-acrylic emulsion provided by the invention comprises the components of: starch, amylases, a cationic monomer, an acrylate monomer, a crosslinking monomer, styrene, a dispersing agent, hydroxyethyl methacrylate, an initiator aqueous solution with a concentration of 20wt%, and deionized water. A surface sizing emulsion prepared by using the styrene-acrylic emulsion provided by the invention and biological latex has better film-forming performance and good hydrophobicity. With the surface sizing emulsion, paper can be provided with better surface strength, better printing performance, and certain water resistance. The styrene-acrylic emulsion is environment-friendly. When in use, the surface sizing emulsion prepared by using the styrene-acrylic emulsion provided by the invention is directly coated on the surface of paper, and surface sizing starch is no longer used during the surface sizing process. Therefore, a fine paper surface sizing operation process is simplified, and surface sizing process stability in fine paper production is improved.

The invention provides a connecting ring cutter paper shredder which comprises a rack, and a first paper shredding mechanism, a second paper shredding mechanism and a driving mechanism which are arranged on the rack, wherein the driving mechanism is respectively connected with the first paper shredding mechanism and the second paper shredding mechanism and drives the first paper shredding mechanism and the second paper shredding mechanism to shred a paper; the first paper shredding mechanism and the second paper shredding mechanism are strip-shaped paper shredding mechanisms; a paper outlet of the first paper shredding mechanism is communicated with a paper inlet of the second paper shredding mechanism; and an acute angle is available between a paper transmitting direction of the paper inlet of the second paper shredding mechanism and the axial direction of a cutter shaft of the second paper shredding mechanism. When the paper is shredded, the first paper shredding mechanism is used for cutting the paper into a plurality of fine paper tapes at the same time, and a second paper shredding cutter is used for inwards and slantwise cutting off the plurality of fine paper tapes into shredded paper particles along one side of the second paper shredding mechanism at the acute angle, so that the paper is labor-saving and high-efficiency to shred. Furthermore, the invention further provides a paper shredding method of the paper shredder.

The invention discloses a method for manufacturing a tree hole cover plate by using papermaking sludge. In the method, a mineralizer, a flocculant, a coupling agent, a retarder and an expansion agent are respectively added to the papermaking sludge for treatment, so that the papermaking sludge is treated with The moisture content of the mud is reduced from more than 60% to less than 10%, so that the papermaking sludge can meet the requirements of stabilization, harmlessness, reduction and resource utilization, and then the papermaking sludge is crushed and homogenized to form Fine powder, papermaking sludge fine powder is added with corresponding materials and stirred by a high-speed mixer. After stirring, the material is injected into the tree hole cover shaping die from the extruder, and the melt in the shaping die is cooled to obtain the tree hole cover plate. The method effectively treats the papermaking sludge to make the tree hole cover, which reduces the production cost of the tree hole cover, saves beneficial resources, reduces the pollution of the papermaking sludge to the environment, and has greater social and economic benefits.

The invention discloses a pulp refiner for papermaking, which comprises a frame, a large pulp recovery box, a filter box, a cutting box, a grinding machine and an air hammer. One side of the air compressor is installed with a large pulp recovery box. A filter box is installed on one side of the large pulp recovery box, a vibrating screen is installed on one side of the filter box, a cutting box is installed on one side of the vibration motor, and a grinder is installed on the top of the fine pulp outlet. , an upper grinding wheel is installed on one side of the grinding machine, a lower grinding wheel is installed on one side of the upper grinding wheel, a grinding motor is installed on one side of the lower grinding wheel, and a discharge port is installed on one side of the grinding motor, An air hammer is installed on one side of the discharge port, and the invention can filter the cut pulp to make the filtered pulp uniform in size, and large pieces of pulp can be recycled and reused, saving energy, and at the same time, the pulp output rate is high. Will not stick to the inner wall of the outlet, easy to use.

The invention relates to an efficient environment-friendly papermaking production line, belonging to the technical field of papermaking mechanical equipment. The efficient environment-friendly papermaking production line is characterized by comprising pulping equipment, wherein a feeding device of the pulping equipment can feed waste paper raw materials into a coarse crushing device; the coarse crushing device can crush the waste paper raw materials into coarse paper pulp; the coarse paper pulp is conveyed into a screening device through water flow assistance; the coarse paper pulp enters a pulp washing device after being screened and filtered by the screening device; and the pulp enters a fine grinding device after being cleaned by the pulp washing device, and enters a storage device after being finely ground by the fine grinding device. According to the invention, fine paper pulp can be finally obtained through automatic feeding, coarse crushing, paper material circulating and infiltrating, screening and paper scrap grinding and refining, and is stored for papermaking operation.

Fine paper for writing, packaging and/or printing, in particular offset printing, comprising a fibrous layer having a bulk greater than or equal to 1.10 cm³/g and at least one coating, said coating having a dry deposition on one or each face of the fibrous layer that is between 3 and 10 g/m² and comprising at least one mineral pigment, at least one latex acting as a binder, and at least one aqueous polyurethane dispersion at a rate of 0.5 to 8% dry weight with respect to the dry weight of pigment(s) of the coating, such that the coated paper has a similar texture to that of the fibrous layer.

Matt fine paper for writing and/or that can be printed, in particular by offset printing, having, on at least one of its faces, a layer comprising pigments and a binder, the pigments comprising silica, the average particle diameter of which is greater than or equal to 3 [mu]m, and the amount of which deposited per unit of surface area of the layer is greater than 0.4 g/m2 and less than 1.5 g/m2 or the amount of silica of which is alternatively or in combination greater than 6% and less than 15%, in particular less than 10% by dry weight relative to the total dry weight of the layer, the paper having on said face a degree of gloss before printing of less than 3.5%, measured at 75 DEG according to the Tappi TM T480 standard.

A heat insulator that generates no smoke when incinerated, has a low calorific value, and achieves a desired dimension and heat insulation performance is provided. A heat insulator 1 is formed by heat-mixing, in an extruder 11, a paper pellet 7 that is a mixture of a fine paper powder having a particle diameter of 30 to 200 μm and starch, a container recycle pellet 8 that is a mixture of polypropylene, polyethylene, and polystyrene, foamable polypropylene 9, and water 10 to obtain a plate-like foamed product 2, and orthogonally overlaying a plurality of plate-like foamed products 2. A weight distribution is set so that the paper pellet 7 is 50 to 65% by weight, the container recycle pellet 8 is 15 to 25% by weight, the foamable polypropylene 9 is 10 to 30% by weight, and the water 10 is 10 to 20% by weight to these resins and other materials.

The invention discloses a bamboo wallpaper weaving method and relates to indoor decorative wallpaper made of natural bamboo with natural tint. The technique procedure involves bamboo fins, thin rope and back lining layer, includes lengthwise arrangement of bamboo fins each column of which is lined up lengthwise by thin rope. Back lining layer is attached to the back of the bamboo fins. Above back lining layer is capable of paper, cloth and fine paper. The clearance between the bamboo fins is 0 to 5 centimeters and between the ropes 0 to 5 centimeters. The weaving method introduced in this invention is adopted with natural bamboo which is harmless to human body preventing the sicknesses caused by the decorative material harmful smells; moreover the bamboo wallpaper is absorbing carbon dioxide in the room facilitating the indoor air refreshment which can be called as natural oxygen cylinder.

The invention relates to the technical field of image processing and paper defect detection, in particular to a coarse-to-fine paper defect detection method which mainly comprises three modules and processes, namely a paper defect screening module, a coordination control module and a paper defect classification module. The method comprises the following steps that: 1, a paper defect screening module runs in an FPGA-based embedded system to ensure that a high-speed high-resolution paper image can be processed in real time, thus screening out an image possibly having a defect after the sampled paper image is primarily processed, directly discarding a normal image after the paper defect is screened, and transmitting an image with a suspected paper defect to the next step; secondly, the coordination control module mainly completes the functions of function calling, feedback control and the like between the paper defect screening module and the paper defect classification and grading module; thirdly, the paper defect classification and grading module builds a classification and grading network through a convolutional network, the classification network can complete the function of classifying paper defects, and the grading network can complete the function of grading the severity degree of the paper defects.

The invention discloses pulping equipment for the toilet paper machine. The pulping equipment comprises a gantry framework, sliding grooves are formed in the two sides of an inner cavity of the gantryframework, a shaking frame is arranged in the inner cavity of the gantry framework, sliding auxiliary mechanisms are slidably connected to the inner cavities of the sliding grooves, and the oppositesides of the two sliding auxiliary mechanisms are welded to the shaking frame; and a first motor is installed at the bottom of an inner cavity of the shaking frame, a pulping tank is fixedly installedat the top of the shaking frame, and an output shaft of the first motor penetrates into the inner cavity of the pulping tank and is fixedly connected with a pulping rod. The first motor is started todrive the pulping rod to rotate to pulp a paper raw material in the pulping tank, and the shaking mechanism is started to shake the pulping tank up and down, so that the paper raw material and watercan be fully mixed to obtain fine paper pulp, and the pulping efficiency of the pulping equipment is improved; and the quality of the toilet paper can be improved.