5497 results about "Paperboard" patented technology

The invention discloses a double-PHA barrier system for a paper-based container and a paperboard as well as a preparation method and application of the double-PHA barrier system, and belongs to the technical field of paper-based material surface engineering and green packaging. The system sequentially comprises a paper base material, a water-based PHA dispersion hole sealing layer and a PHA extrusion compact layer from inside to outside. According to the invention, the micron-sized PHA dispersoid without cell debris is utilized, so that an efficient hole sealing effect which is difficult to achieve by a high coating amount in a traditional process can be achieved by only needing an extremely low coating amount, and the pinhole defect of an extrusion layer is eliminated from the source. And in cooperation with the modified PHA extrusion layer with the specific crystallinity, the problem of micro-cracking of a single coating during edge rolling forming is cooperatively solved. According to the system, excellent barrier performance is achieved through a thinner bio-based structure, and meanwhile the system has a wide heat sealing window and excellent repulp recycling performance. Compared with the prior art, on the premise that high performance is guaranteed, the consumption amount of packaging materials and the environmental burden are remarkably reduced.

The present disclosure relates to a method for manufacturing a multiply paperboard on a paperboard machine. The method comprises the steps of - forming a middle-ply web from a first furnish comprising at least 20 wt% of CTMP on a first forming wire, - dewatering the middle-ply web on the first forming wire in a first dewatering zone, - dewatering the middle-ply web (3) between the first forming wire (1) and a second forming wire (6) in a second dewatering zone (5), which second dewatering zone (5) comprises at least one suction unit (7) and dewatering blades (8), which dewatering blades (8) are in contact with the second forming wire (6), and at least two loadable dewatering blades (9a, 9b, 9c, 9d) in contact with the first forming wire (1), wherein the loading pressure applied by each of the loadable dewatering blade (9a, 9b, 9c, 9d) is in the range of between 0.1 – 25 kPa -kPa, - forming a top-ply web from a second furnish and a back-ply web from a third furnish, - couching the said webs to form a three-ply web wherein the middle ply web is arranged between the top- and back ply web, - pressing the three-ply web in a press section, - drying the pressed web in a drying section and - reeling the web. The paperboard manufactured according to the present invention exhibits an excellent formation and a high z-strength.

The invention discloses a mirror surface paperboard slitting device and method. The device comprises a treatment bin, an air flotation conveying mechanism, a slitting mechanism and a dust collection body. The air floatation conveying mechanism sprays an air film to the bottom face of the paperboard through a first air conveying structure and a second air conveying structure which are symmetrically arranged, and sprays an air film to the top face of the paperboard through a first air pressure structure and a second air pressure structure, and double-face non-contact conveying is achieved. The slitting mechanism adopts a servo motor to drive a helical tooth column for meshing transmission, a belt pulley transmission main body drives a blade to rotate, and vertical and front-back position adjusting assemblies are integrated and matched with a blade bottom cambered surface supporting wheel to provide anti-deformation support; the dust collection body is arranged in a front-arranged mode to absorb slitting dust in real time. The method comprises the steps of paper jam release, double-sided air flotation starting, limiting adjustment, multi-dimensional slitting control, synchronous dust collection and finished product storage. The problems of mirror surface damage, insufficient slitting precision and dust pollution are solved, and the slitting quality and efficiency are remarkably improved.

The invention relates to the technical field of distributed control, in particular to an automatic control system and process for a corrugated carton production process, and the system comprises a body paper state online monitoring module which is used for collecting body paper humidity, preheating temperature and paperboard tension values in real time at a preheater node, combining the values into a multi-dimensional input data stream, establishing an initial working condition state vector, and outputting the initial working condition state vector; and calculating a deviation value between each parameter in the initial working condition state vector and a standard set value, and generating an upstream disturbance feature set. According to the method, the predicted value is compared with the control threshold value, the adjustment amount of the steam pressure or the production line speed of a plurality of downstream hot plate areas can be calculated, a distributed and feed-forward compensation instruction is generated, and the closed loop from source disturbance monitoring to future state multi-dimensional prediction to downstream multi-point cooperative compensation is more accurate. The suppression of production disturbance is realized, the control precision and response speed of quality fluctuation are improved, and the rejection rate caused by quality problems is reduced.

The utility model provides a backboard electronic price tag guide rail which is fixed on an external supporting structure through a guide rail fixing mechanism 10, the price tag fixing mechanism is composed of a transparent fixing plate, an upper hook plate and a lower hook plate, and a paper clamping mechanism is arranged on the back face of the transparent fixing plate. The background paperboards with different colors are fixed in the paper clamping mechanism to flexibly configure the background color of the price tag, the commodity can be marked clearly and conveniently, the transparent fixing plate extends downwards to form an additional information display area, a clamping and fixing mechanism does not need to be additionally arranged, and the price tag is simple in overall structure, convenient and easy to use.

The utility model provides carton processing equipment and a carton processing system with the same. The carton processing equipment comprises a rack; the feeding module is arranged on the rack and used for conveying paperboards; the pressing device is used for pressing an indentation on a paperboard and / or forming a notch in the paperboard; the longitudinal creasing device comprises a press-fit part, and the press-fit part can reciprocate in the width direction of the paperboard; the longitudinal cutting device comprises a longitudinal cutter, and the longitudinal cutter can reciprocate in the width direction of the paperboard; the transverse grooving device comprises a transverse grooving driving shaft and a grooving cutter, and the grooving cutter rotates along with the transverse grooving driving shaft and can reciprocate in the width direction of the paperboard; the transverse cutting device and / or the punching device are / is used for punching on the paperboard; the transverse cutting device is used for transversely cutting the paperboard in the width direction of the paperboard. According to the carton machine, the problem that the processing function of the carton machine in the prior art cannot meet the processing requirements of corrugated boards is effectively solved.

Disclosed is an image forming system having a first mode in which an image forming unit forms toner images and adhesive layers on sheets, and a booklet creation apparatus creates a booklet using the sheets; and a second mode in which the image forming unit forms only adhesive layers on sheets, and the booklet creation apparatus creates a booklet using the sheets. A predetermined temperature of a fixing unit that is set for heating and pressing of a sheet in the fixing unit is lower in the second mode than in the first mode.

A dispersion coated paperboard (1) for food packaging applications, the coated paperboard comprising a paper or paperboard substrate (2) having a first side (2a) and a second side (2b). The paper coated paperboard (1) further comprises a first layer (3) coated with a PHA dispersion, the first layer (3) being coated on at least one side (2a, 2b) of the paperboard substrate (2); and a second layer (4) coated with a PHA dispersion, said second layer (4) being coated on at least one of said first layers (3) wherein the crystallinity of the second layer (4) is higher than the crystallinity of the first layer (3).

The utility model discloses a conveying device for paper product processing, which belongs to the field of conveying devices and comprises a conveying frame and a stacking frame, and a conveying belt is arranged on the inner side of the conveying frame. Through the arrangement of the guiding and tidying structure, the paper boards are limited and guided, the tidiness of the stacked paper boards is guaranteed, a rotatable guiding plate is arranged in the guiding and tidying structure and used in cooperation with an arc-shaped rod and a buffer spring, and the paper boards can be subjected to avoiding and buffering when being impacted at the initial stage of discharging; after impact is completed, the guide plate rotates and resets under the action of a buffer spring, the follow-up arrangement effect is achieved, a limiting assembly is installed at the end of the stacking frame, the paperboards are limited and blocked through a cloth belt arranged between the two fixing frames, the paperboards can be prevented from moving and falling off, the integrity of the paperboards can be protected, and the service life of the paperboards is prolonged. One end of the cloth belt is connected to the rotating shaft through the cloth roll and used in cooperation with the pressing end cover, and the tensioning degree of the cloth belt can be adjusted according to the actual situation.

The invention discloses corrugated paper conveying equipment based on visual screening. The corrugated paper conveying equipment comprises an equipment frame, and a lifting seat is arranged at one end of the equipment frame in a lifting mode; the first conveyor is arranged in the equipment frame, one end of the first conveyor is rotationally installed in the lifting base, and the other end of the first conveyor is arranged at the end of the equipment frame in a lifting mode; a plurality of industrial cameras are arranged on the top of the first conveyor, unqualified products are found in time, when it is detected that a paperboard has defects and dimensional deviation, a material taking suction cup downwards adsorbs the paperboard and then rapidly lifts the paperboard upwards, the whole screening action is rapid and timely, and the unqualified products are effectively prevented from being mixed into qualified products; after the material taking suction cup lifts the materials, the second conveyor moves to the position below the material taking suction cup to receive and take the materials, the cleaning brush cleans the material taking suction cup during resetting, dust, chippings and other loose sundries can be effectively removed, and the adsorption effect and the service life of the vacuum suction cup are guaranteed.

The invention belongs to the technical field of intelligent manufacturing, and particularly relates to a paperboard sorting and self-adaptive indentation intelligent control system based on machine vision, which comprises an indentation operation component, a sorting visual identification component, a finished product transportation line and a defective product transportation line, and further comprises a self-adaptive indentation control system, an integrated thin film pressure sensor is mounted in the indentation cutter in the indentation machine; an image acquisition and processing unit, a time-illumination association unit, an adaptive shooting adjustment unit, an optimal frame selection strategy unit, a motion control and cooperation unit, a regular verification unit and a pressure adjustment unit are arranged in the adaptive indentation control system. Visual inspection is introduced, reflection interference can be eliminated, the problem of false detection caused by reflection of the film-coated paperboard in traditional single-light-source shooting is solved, the image recognition capacity is excellent, the screening efficiency is high, technological parameter backtracking and optimization are supported, and the yield only has small deviation due to seasonal fluctuation.

Aspects of the present disclosure include a rigid paperboard product comprising at least one modified starch and at least one crosslinker, wherein the at least one modified starch is present in an amount ranging from 2% to 20% by weight of the paperboard product, wherein the at least one crosslinker is present in an amount ranging from 0.5% to 8% by weight based on the dry weight of the starch content in the paperboard product, and wherein the paperboard product has a rigidity value ranging from 375 to 500.

The present invention relates to compositions and methods for forming substantially bio-based barrier coatings suitable for application on paper and paperboard substrates, as well as paper and paperboard substrates to which one or more such substantially bio-based barrier coatings are applied. The bio-based barrier coatings of the present invention comprise a bio-wax emulsion comprising one or more bio-waxes, such as castor oil wax, formed by hydrogenation of a bio-based oil, such as castor oil. The barrier coating composition is formed by dispersing a bio-wax emulsion into a polyhydroxyalkanoate (PHA) dispersion and can be applied as a coating at ambient temperature, for example, to paper or paperboard, such as paper or paperboard consisting of regenerated fibers, using conventional industrial processes.

The invention discloses a visual alignment method and device for printing draft intelligent deflection and spraying vehicle cooperative control, and belongs to the technical field of machine visual localization, and the method specifically comprises the steps: firstly, arranging a calibration target in an ink-jet printing area, employing an image collection device to collect an image, and calculating a rigid transformation matrix of a visual coordinate system and a printer spraying vehicle coordinate system; establishing high-precision coordinate mapping; the control terminal reads the reference position and attitude information of the original draft in the spraying vehicle coordinate system from the production management system; the method comprises the following steps: after primary inkjet of a paperboard, shooting the whole paperboard by an image acquisition device, and extracting actual contour features and coordinates of a draft through image processing; the coordinates are mapped to a spraying vehicle coordinate system through a transformation matrix, and a rotation deviation angle and a translation deviation vector are calculated; analyzing to obtain angle and translation compensation values, packaging the angle and translation compensation values into a control instruction, and sending the control instruction to ink-jet printing control software through a real-time bus; finally, software drives a servo executing mechanism, the position and the posture of the spraying vehicle are adjusted according to a new target, and accurate alignment with the paperboard is achieved.

A planar utensil element fabricated of an elongated foldable paperboard material comprises two generally symmetric scores, elongated with respect to a longitudinal midline of the planar utensil element; wherein folding the planar utensil element about the longitudinal midline produces a usable utensil having two substantially identical halves forming a handle portion and a bowl portion; each of the two generally symmetric scores originates from within the handle portion, curves outwardly away from the longitudinal midline, and then curves inwardly towards the longitudinal midline when traversing from the handle portion towards the bowl portion; and said two generally symmetric scores are present in both the handle portion and the bowl portion.

The present invention relates to a composition comprising an aqueous dispersion of biodegradable polymer particles, a method of preparing the composition, and a method of preparing a coated substrate comprising the composition. The composition is useful as a coating applied to a substrate, particularly a paper substrate. The coated paper is useful as a single layered barrier coated paper or paperboard.

The invention discloses a seed vigor detection device based on a polarization spectrum technology, which comprises a large-stroke electric control mobile platform, a black paperboard, a seed sample, a halogen light source, a polarizer, a lens, a hyperspectral sorter, an analyzer and a computer, and all the parts are arranged in a camera obscura; the light emitted by the halogen light source is reflected by the polarizer and the seed sample, reaches the lens and is captured by the hyperspectral sorter; the invention also provides a detection method which comprises the following steps: firstly, collecting spectral data; carrying out image analysis; preprocessing the polarization spectrum data, performing competitive adaptive reweighting algorithm dimension reduction, and selecting a characteristic wavelength; finally, establishing a seed vigor detection model, fusing ideal modeling methods by adopting Blending ensemble learning, and carrying out hybrid modeling on the grain seeds; the polarization hyperspectral technology is introduced into the field of seed vigor detection, the seed vigor detection precision is improved, and rapid and nondestructive detection of the soybean seed vigor is achieved.

The invention discloses a printing paperboard positioning method and system based on visual image segmentation and edge detection, and relates to the field of printing paperboard positioning, and the method comprises the steps: collecting a parallel polarization image and a cross polarization image of a target substrate; determining parallel polarization features and cross polarization features by combining the parallel polarization image and the cross polarization image through a preset dual-channel neural network, and determining a parallel glare mask based on the parallel polarization features; performing feature weight adjustment on the cross polarization feature based on the parallel glare mask to obtain an adjusted cross polarization feature; performing feature fusion by combining the adjusted cross polarization features and the adjusted parallel polarization features to obtain a fusion feature map; inputting the fusion feature graph into a preset semantic segmentation network model to obtain an edge probability graph of the target substrate; and determining the edge position of the target substrate by using a contour connection algorithm according to the edge probability graph. The printing paperboard positioning device can effectively improve the positioning precision of the printing paperboard.

The invention belongs to the technical field of production of insulating products, and discloses a production method of an insulating paperboard, which comprises the following steps: grinding pulp through a DD720 double-disc refiner, respectively adding a modified additive PDMS (Polydimethylsiloxane) emulsion and a phenyl silicone emulsion into the pulp, mixing with a cross-linking agent, adding a cross-linking agent, and uniformly stirring to obtain the insulating paperboard. Or adding a modified additive PDMS emulsion and a phenyl silicone emulsion into the slurry at the same time, and then mixing with a cross-linking agent; mechanically stirring the mixed pulp by a propeller, standing, and carrying out drifting purification, papermaking by a paper machine, multi-section hot pressing and cutting and shaping to obtain a finished paperboard. According to the insulating paperboard prepared by the production method, the electrical strength index value of an existing product in air can be improved by 30%-50%, so that the influence of aging damage to an insulating material caused by high-voltage, high-temperature and complex electromagnetic environments in the operation process of a transformer is reduced, the service life of the transformer is prolonged, and the safe operation performance of the transformer is improved.

The invention discloses a thickness laser measuring device for corrugated paper packaging box production and a method thereof, and relates to the technical field of laser thickness measuring devices. The concave-convex part of the corrugated board can be extruded through rolling of an air bag of the measurement pretreatment mechanism, flattening is achieved, meanwhile, high-speed airflow generated by an air cylinder purges paper scraps on the surface through air inlet and outlet holes, suction force generated when a piston is reset subsequently can suck the residual paper scraps into a detachable dust collection cylinder, the paper scraps are prevented from blocking a laser light path, and measurement errors are reduced from the source; secondly, in the laser thickness measuring mechanism, a first laser thickness measuring assembly and a second laser thickness measuring assembly move in opposite directions and are matched with the movement of the paperboard along with the conveying belt, measuring point positions in a larger range on the surface of the paperboard can be covered, the contingency of single-point measurement is avoided, a touch switch of a laser thickness gauge can be triggered and starts to work only after the preprocessing mechanism completes the purging action, and the accuracy of measurement is improved. The problem that paper scraps raised during purging interfere with a light path is thoroughly avoided, and the data validity is further guaranteed.

A product display for mounting on a pallet-shaped base element (1) is presented, made from a rectangular cardboard blank, which can be unfolded from a flat, folded transport state into an assembled state with a rectangular base, with a U-shaped lower part (2) in the assembled state, consisting of a front wall (3), a right side wall (4) and a left side wall (5), wherein the right side wall (4) and the left side wall (5) are each provided with a central, vertically extending fold line (8, 9) that divides the right side wall (4) and the left side wall (5) into a front section (10, 12) connected to the front wall and a rear section (11, 13) facing away from the front wall, and with a U-shaped upper part (14) consisting of a back wall (25), a right side wall (15) and a left side wall (16).wherein the right side wall (15) and the left side wall (16) are double-walled with a right inner wall section (18) connected to the rear wall (25) and a right outer wall section (17) bonded to the right inner wall section (18), as well as with a left inner wall section (20) connected to the rear wall (25) and a left outer wall section (19) bonded to the left inner wall section (20), the right and left outer wall sections (17, 19) and the right and left inner wall sections (18, 20) are each connected at their front edge facing the front wall (3) of the lower part (2) by a fold line (21, 22), and the right outer wall section (17) is connected to the rear section (11) of the associated right side wall (4) of the lower part (2) and the left outer wall section (19) is connected to the rear section (13) of the the associated left side wall (5) of the lower part (2) is formed in one piece lying in a common vertical plane.

The utility model discloses a paperboard structure and a paper support formed by quickly folding a single-layer paperboard, the paperboard is cut by a cutting die, folds and kerfs are preset, the paperboard comprises a bottom plate, side plates and an inner folding surface, and an embedded bonding lug is used as a first bonding part. Through the exquisite crease design, automatic forming can be achieved through two-way opposite extrusion. The inner folding surface is folded along a preset crease and is bonded for later use, so that the transportation and the storage are convenient; during assembly, by means of bending and fixing of the L-shaped supporting strips, stable strip-shaped vertical edges and a hollow-out supporting frame are formed. According to the design, the end protection buffer frame with the same size can be conveniently and rapidly assembled, and the end protection buffer frame is suitable for supporting and protecting commodities in a carton, has the advantages of efficient production and transportation convenience, small paper consumption and low cost, is high in forming efficiency and easy to operate during use, and greatly improves the labor efficiency and the yield during paper support forming.

The invention discloses a corrugated paperboard thickness detection device and a corrugated paperboard machine thereof, and relates to the technical field of corrugated paperboard thickness detection.The corrugated paperboard thickness detection device comprises a base, a supporting plate is fixedly installed at the upper end of the base, meanwhile, a cleaning assembly is arranged on the supporting plate, and impurities adhering to the surface of a corrugated paperboard are removed through the cleaning assembly; according to the corrugated board thickness detection device and the corrugated board machine thereof, when a pressing block is attached to a corrugated board, the pressing block is tightly pressed on the outer surface of the corrugated board through the transmission force of a ratchet gear, and when the pressing block bears the maximum pressure, a first elastic piece is matched to be stressed and shrunk, so that a clamping block is separated from the ratchet gear, and the corrugated board thickness is detected. And the pressing block is clamped with the other notch of the ratchet wheel, so that the stability of the pressing block is ensured, the edge part of the corrugated board is tightly kept in a clinging state with the optimal force, and the deviation of a detection result caused by edge upwarp is avoided.

The invention provides a paperboard and a preparation method thereof. The preparation method comprises the steps that paper pulp is prepared, the paper pulp comprises core layer paper pulp, face lining layer paper pulp, face layer paper pulp and bottom layer paper pulp, and microfibrillated cellulose and chemical pulp are added to at least one of the face lining layer paper pulp and the bottom layer paper pulp to be ground together before grinding; making raw paper from the paper pulp; and coating surface glue on the surface of the surface layer of the body paper. According to the preparation method of the paperboard provided by the embodiment of the invention, the adding point of the MFC applied to the high-speed paper machine system is determined, the influence on the paper machine system is reduced, and dehydration of the pulp and operation of the paper machine are ensured. By combining the papermaking characteristics of a multi-layer paper machine, the surface lining layer and the bottom layer applied to the paper sheets can effectively improve the interlayer bonding strength between the paper sheets, improve TV-16, reduce the use amount of spraying starch in the conventional process or cancel the spraying starch, and improve the operation of the paper machine.

The present invention provides a bottomless grey board production device and its production process, which relates to the field of cardboard production equipment and includes: a conveying component, on the left and right sides of which there are mounting components; a contact component is rotatably installed with a contact wheel, and the contact wheel can contact the vertical grid cardboard, keeping the contact wheel in a raised state, and when the raised contact wheel contacts the trigger head of the trigger component, the trigger piece on the trigger head is connected to the connecting guide frame, ensuring that the signal of the connecting guide frame is connected. When there is a hole in the vertical grid cardboard and the vertical grid cardboard cannot contact the contact wheel, the trigger head will drop, causing the connecting guide frame not to trigger a signal, enabling the device to sense and alarm, thereby avoiding the bottom exposure of the vertical grid cardboard and the cardboard paper, which is beneficial to solving the problem that the vertical inner core of the grey board sandwich layer may have an incomplete unfolding of the inner core layer, resulting in a hollow area in the grey board inner core, which cannot be detected by the electronic sensor and causes bottom exposure when the grey board is used.

A method of making paper and paperboard products comprising absorbent structures is disclosed. The method comprises mixing an ultra-high molecular weight ("UHMW") glyoxalated polyethylene amide ("GPVM") adduct and a high molecular weight ("HMW") anionic polyacrylamide ("APAM") with ingredients in the raw material preparation process of the wet laying papermaking method. High wet strength paper and paperboard products are also disclosed.

The invention discloses a dust filtering mechanism with a self-cleaning function for paperboard processing, and relates to the technical field of paperboard processing dust filtering, the dust filtering mechanism comprises an adjusting unit arranged at the top of a fixing frame and used for preventing dust from overflowing, and a cleaning unit matched with the adjusting unit to regularly clean dust in a dust collecting hopper; an elastic rope used for changing the thickness of the elastic rope in cooperation with pulses is arranged at the top of the fixing frame, and a first dust collecting plate and a second dust collecting plate which are used for collecting dust are arranged in the dust collecting hopper. The fixed rod at the top of the lifting frame is matched with the slope groove of the rotating ring to convert displacement along the slope groove into circumferential rotation of the rotating ring, and the elastic ropes are synchronously tensioned along with deflection of the rotating ring, so that gaps between the adjacent elastic ropes are dynamically increased, a smooth falling channel is provided for dust, and the dust removal efficiency is improved. The first dust collecting plate and the second dust collecting plate are turned from a horizontal state to a vertical state, so that dust attached to the surfaces of the dust collecting plates falls into the bottom of the dust collecting hopper and is collected by an external collecting system.

The invention relates to an enclosure frame paper box forming main machine and an enclosure frame paper box forming production line, a first mold staying position of the enclosure frame paper box forming main machine is provided with a box bottom plate assembling device on the outer end face of a box bottom plate mounting mold, and a second mold staying position is provided with an enclosure frame box body embracing device of a box body paperboard surface paper laminating material enclosure mold. The third mold staying position is provided with an enclosure frame box body upper side outer wall paper supplementing and mounting cover device, and the fourth mold staying position is provided with a demolding and box discharging device. The enclosure frame box body upper side outer wall surface paper supplementing and cover mounting device independently supplements a piece of complete surface paper to the upper side outer wall of the horizontal enclosure frame box body for cover mounting at the third mold stop position in a matched mode, a new manufacturing mode is provided, different process manufacturing requirements are met, cover mounting is more stable, efficiency is relatively high, and the production cost is reduced. The outer wall of the upper side of the horizontal type enclosure frame box body does not need to mount the surface paper in advance, and the box body material does not need to be enclosed by the surface paper to form the enclosure frame box body.

The invention discloses a two-piece type sealing gasket which comprises a backing layer, a weak adhesive layer and an adhesive sealing composite layer which are sequentially arranged from top to bottom. The backing layer is a paperboard or a foam board film; the adhesive sealing composite layer comprises an electromagnetic induction heating layer and an adhesive sealing layer which are sequentially arranged from top to bottom; the weak adhesive layer is located between the backing layer and the adhesive sealing composite layer, and the weak adhesive layer enables the peel strength between the backing layer and the adhesive sealing composite layer to be more than 0.05 N / 15mm and less than 2.26 N / 15mm. According to the invention, the backing layer and the adhesive sealing composite layer can be easily separated.