3085results about "Mechanical working/deformation" patented technology

Disclosed is a coreless roll of a tissue paper product having a first end and a second end, and a web of tissue paper product being wound such as to define a central inner hole with the first end located on the outer side and the second end located at the inner hole, the product including a bonded first ply and a second ply, a grammage of the product being 35 to 55 g / m2, and having a Geometric Mean Tensile strength of at least 200 N / m, the first ply and the second ply being made of Conventional Wet Press (CWP) paper and embossed to be nested, the coreless roll having an outer diameter of 95 to 150 mm, an inner hole diameter of 20 to 50 mm, and a density of the coreless roll of 70 to 90 kg / m3, a caliper ratio of the roll of 40% to 70%.

Disclosed is a coreless roll of a tissue paper product having a first end and a second end, and a web of tissue paper product being wound such as to define a central inner hole with the first end located on the outer side and the second end located at the inner hole, the product including a bonded first ply and a second ply, a grammage of the product being 35 to 55 g / m2, and having a Geometric Mean Tensile strength of at least 200 N / m, the first ply and the second ply being made of Conventional Wet Press (CWP) paper and embossed to be nested, the coreless roll having an outer diameter of 95 to 150 mm, an inner hole diameter of 20 to 50 mm, and a density of the coreless roll of 70 to 90 kg / m3, a caliper ratio of the roll of 40% to 70%.

Toilet tissue having a dynamic surface and method for making same are provided.

Creped fibrous structures having pillows and knuckles, wherein the creped fibrous structures may exhibit improved knuckle properties, such as Knuckle Roughness Ra, Knuckle Roughness Rq, and Knuckle Creping Frequency and methods for making same are provided, and / or may comprise elongate knuckles comprising discrete pillows and / or elongate pillows between first and second elongate knuckles.

Disclosed is a coreless roll of a tissue paper product having a first end and a second end, and a web of tissue paper product being wound such as to define a central inner hole with the first end located on the outer side and the second end located at the inner hole, the product including a bonded first ply and a second ply, a grammage of the product being 35 to 55 g / m2, and having a Geometric Mean Tensile strength of at least 200 N / m, the first ply and the second ply being made of Conventional Wet Press (CWP) paper and embossed to be nested, the coreless roll having an outer diameter of 95 to 150 mm, an inner hole diameter of 20 to 50 mm, and a density of the coreless roll of 70 to 90 kg / m3, a caliper ratio of the roll of 40% to 70%.

Multi-ply tissue products, particularly tissue products prepared from two or more wet pressed tissue plies that have been recreped using a print-crepe process that deposits a latex polymer on at least one of the outer surfaces of each tissue ply. The tissue products have improved strength and softness, such as a geometric mean tensile strength (GMT) greater than about 1,400 g / 3″, a geometric mean tensile energy absorption (GM TEA) of about 20 g·cm / cm2 or greater and a TS7 value less than about 16.0. In certain instances, the tissue products also have a low degree of stiffness and a relatively smooth surface, such as a Stiffness Index less than about 8.00 and a TS750 value less than about 20.0.

A sheet processing apparatus includes: a center-folder to perform a center-folding process on a sheet bundle including multiple sheet materials; a back-crimp binder to: form a back portion on the sheet bundle subjected to the center-folding process; and perform a crimp-binding process on the back portion; and a controller configured to: cause the center-folder to perform the center-folding process; and cause the back-crimp binder to perform the crimp-binding process on the back portion while forming the back portion on the sheet bundle in the crimp-binding process.

Disclosed are tissue products, particularly creped, wet-pressed tissue products, having improved physical properties such as a high caliper and a low degree of stiffness. The products are manufactured by molding the nascent tissue web to the structuring belt such that the pattern disposed on the fabric is imparted to the web and can be seen by the consumer in the finished product. Preferably the molding step occurs immediately prior to creping such that the molded, nascent, web is transferred from the structuring belt to a cylindrical dryer and then subsequently removed by creping. The structuring belt imparts the tissue web with a plurality of discrete molded elements arranged to form continuous, substantially cross-machine direction (CD) oriented, line elements that not only provide the products with an aesthetically pleasing appearance but also improves certain physical properties of the finished product.

The invention relates to the technical field of packaging materials, in particular to a high-strength corrugated carton based on polymer fiber material processing, and particularly relates to a corrugated carton achieving high strength and high waterproofness through polymer fiber material modification and special structural design. A polymer fiber material is soaked in a sodium hydroxide solution with a certain concentration, hydroxyl groups are introduced to the surface of the fiber, and the interface bonding force between the fiber and base materials such as starch is remarkably improved. According to detection, the bonding strength of the treated fibers and starch is improved by 30%-50%, so that the overall performance of the polymer fiber material layer is enhanced, in addition, compared with traditional corrugated waveforms, the UV composite waveforms are adopted, the compressive strength is improved by 20%-30%, the buffering performance is improved by 15%-20%, external impact force can be dispersed more effectively, and objects in the carton can be protected.

A medium processing apparatus includes a conveyor, a liquid applier, and a crimper. The conveyor conveys a medium. The liquid applier applies liquid to the medium conveyed by the conveyor. The crimper presses and deforms a medium bundle including at least one medium to which the liquid is applied by the liquid applier, to bind the medium bundle. The liquid applier selectively performs application of the liquid to all media constituting the medium bundle or application of the liquid to only some of the media constituting the medium bundle, based on a conveyance interval at which the media are conveyed by the conveyor.

Disclosed are multi-ply tissue products, particularly wet pressed facial tissue products that have been recreped. For example, disclosed are tissue products prepared from wet pressed tissue webs that have been recreped using a print-crepe process that deposits a latex polymer on at least one of the outer surfaces of the tissue web. The tissue products have improved strength and softness, such as a geometric mean tensile strength (GMT) greater than about 1,400 g / 3", a geometric mean tensile energy absorption (GM TEA) of about 20 gocm / cm2 or greater and a TS7 value less than about 16.0. In certain instances, the tissue products also have a low degree of stiffness and a relatively smooth surface, such as a Stiffness Index less than about 8.00 and a TS750 value less than about 20.0.

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.

A multi-ply tissue paper product includes at least three plies. The tissue paper product includes a first inner ply being a creped ribbed ply and having a basis weight of 10 to 30 gsm, and a first outermost ply and a second outermost ply on each side of said inner ply, the first and second outermost plies being non-ribbed plies, wherein a creped ribbed ply is a ply including ribs and valleys providing an average core roughness Rk in the range 10 to 300 μm, and peaks being 4 to 12 per cm as measured along said first direction; and wherein a non-ribbed ply is a ply displaying no parallel ribs and valleys extending continuously along any direction of the ply or displaying parallel ribs and valleys extending continuously along any direction of the ply, the ribs and valleys providing peaks being less than 4 per cm.

The invention discloses a multifunctional coated paper production device, which comprises four unreeling mechanisms, two unreeling mechanisms are a first PET film unreeling assembly and a second PET film unreeling assembly, and the rest two unreeling mechanisms are paper unreeling assemblies; the number of the winding mechanisms is two; the four co-extrusion mechanisms are respectively a first co-extrusion assembly, a second co-extrusion assembly, a third co-extrusion assembly and a fourth co-extrusion assembly. According to the multifunctional coated paper production device, the four unwinding mechanisms, the two winding mechanisms, the two extrusion mechanisms and the two co-extrusion mechanisms are arranged, so that PE films can be conveniently coated at different positions of paper, and the PE films and the PET films are connected in a co-extrusion mode to produce different types of composite coated paper, multiple production devices are not needed, and therefore the production cost is greatly reduced, and the production efficiency is improved. And meanwhile, the production occupied space is reduced.

Disclosed are multi-ply tissue products, particularly creped and through-air dried tissue products, having cloth like properties, such as good drapability and durability. For example, the products generally comprise two plies and have a geometric mean slope (GM Slope) less than about 10.0 kg and a geometric mean tensile energy absorption (GM TEA) of about 15 g·cm / cm2 or greater. In certain instances, the tissue products also have a low degree of stiffness, such as a Stiffness Index less than about 5.00. The tissue products may be prepared from webs manufactured by a print-crepe process that deposits a latex polymer on at least one of the outer surfaces of the tissue web.

The utility model relates to a hot-pressing shaping die for a molded pulp packaging product. The defects of unreasonable design and the like in the prior art are overcome. The hot-pressing shaping mold for the paper pulp molding packaging product comprises a hot-pressing shaping concave mold for at least forcing the outer diameter of the original side wing wall thickness of a paper pulp molding wet blank product to be kept unchanged, and a shaping internal expanding mold which is matched with the hot-pressing shaping concave mold and forms a hot-pressing shaping profiling cavity for accommodating the paper pulp molding wet blank product, the shaping internal expansion die applies radial internal expansion force from inside to outside to the original side wing wall thickness, and the radial internal expansion force enables the original side wing wall thickness to be compressed and thinned to the set side wing wall thickness; and when the original side wing wall thickness is forced to be compressed and thinned by the radial internal expansive force, at least part of the inner wall of the original side wing wall thickness is shaped in the direction opposite to the radial internal expansive force to form an inward protrusion. The method has the advantages that the inner convex structure is shaped in the hot-pressing shaping stage, the risk that the inner diameter of the inner convex structure is further enlarged during post-treatment processing demolding can be prevented, and a molded pulp packaging product has better fastening tightness.

The invention relates to the technical field of corrugated paper production, and in particular to a corrugated roller group with a heat dissipation function, comprising a frame, wherein a corrugated roller and a paper pressing roller are arranged on the frame, end covers are arranged at both ends of the paper pressing roller, and a heat dissipation component is installed on the end covers, and the heat dissipation component comprises a heat dissipation motor and an impeller; a through hole is arranged in the end cover, and the impeller is installed in the through hole through a support frame, and the heat dissipation motor is used to drive the impeller to rotate; a heat dissipation cavity is arranged inside the paper pressing roller, and the heat dissipation cavity is connected with the through hole, and multiple groups of heat dissipation fins are installed in the heat dissipation cavity, and an air outlet is arranged near the end cover near the heat dissipation fin; compared with the prior art, the heat dissipation motor can drive the impeller to rotate and guide the outside air into the through hole, and the outside air comes to the heat dissipation cavity through the through hole, enters the air duct through the opening, and finally blows out from the air outlet; when passing through the air duct, the airflow can effectively take away the heat conducted by the vertical plate, so as to ensure that the paper pressing roller can be maintained at a normal temperature state, and avoid the deformation of the paper pressing roller affecting the processing accuracy.

The invention discloses novel environment-friendly flame-retardant corrugated paper and a preparation method thereof, and belongs to the technical field of paperboard products. The corrugated paper is formed by bonding upper surface paper, a V-shaped flame-retardant core base layer and lower surface paper through a flame-retardant adhesive; the flame-retardant adhesive is prepared from the following components in parts by weight: 50 to 65 parts of oxidized cassava starch, 12 to 23 parts of phosphate esterified urea-formaldehyde resin, 5 to 15 parts of nitrogen-phosphorus modified isocyanate-based polyurethane and 2 to 8 parts of nano aluminum hydroxide; wherein the nitrogen and phosphorus modified isocyanate-based polyurethane is prepared by carrying out a reaction on isophorone isocyanate, bisphenol A type monophenyl phosphonate and modified montmorillonite, and the modified montmorillonite is prepared by carrying out a reaction on montmorillonite and polysiloxane. The corrugated paper provided by the invention has excellent flame retardant property, and also has good chemical stability and mechanical properties.

The invention relates to a corrugated paper production process temperature control method and system, and the method comprises the steps: obtaining the temperature and water content of corrugated paper after the corrugated paper passes through a preheating roller, constructing a membership function and fuzzy control rules, obtaining the prerequisite credibility of each rule in the fuzzy control rules based on the temperature and water content, and obtaining the prerequisite credibility of each rule in the fuzzy control rules; adopting regular premise credibility to obtain the premise credibility of air inflow adjustment and the premise credibility of preheating roll wrap angle adjustment; the number of times of taking the wrap angle of the preheating roller as an adjustment object and continuously adjusting in one direction is obtained, if the number of times is larger than a threshold value, the air inflow is taken as the adjustment object, and otherwise, the adjustment object is determined based on the premise credibility of air inflow adjustment and the premise credibility of preheating roller wrap angle adjustment; and calculating the output of the adjustment object in the fuzzy system, carrying out defuzzification to obtain an adjustment value, and adjusting the adjustment object by adopting the adjustment value.

Disclosed am multi-ply tissue products, particularly creped and through-air dried facial tissue products, having improved strength and softness. For example, the products have a geometric mean tensile strength (GMT) greater than about 1,2000 g / 3″, a geometric mean tensile energy absorption (GM TEA) of about 20 g·cm / cm2 or greater and a TS7 value less than about 16.0. In certain instances, the tissue products also have a low degree of stiffness and a relatively smooth surface, such as a Stiffness Index less than about 8.00 and a TS750 value less than about 15.0. The tissue products may be prepared from webs manufactured by a print-crepe process that deposits a latex polymer on at least one of the outer surfaces of the tissue web.

The invention provides a preparation method of a glue-free repulping multi-layer high-barrier packaging material, which comprises the following steps: taking a first paper base and a second paper base, preparing a barrier coating, and adding a plasticizer into the barrier coating; coating the first surface of the first paper base with a barrier coating to form a first paper base barrier layer with a two-layer structure; the second surface of the second paper base is coated with the mixture to form a second paper base barrier layer with a two-layer structure; the high-barrier packaging material is prepared by making one side of the barrier material face to face, overlapping and hot-pressing, further, the plasticizer is a bio-based plasticizer, the formed high-barrier packaging material is of a two-layer split structure through design, the surfaces of the two split layers are both coated with the barrier material, and the high-barrier packaging material is obtained. The same barrier material is plasticized and combined by using a hot pressing process, so that a synergistic and associated effect from addition and use of an environment-friendly material to a processing process is formed, the interlayer binding force of the material is effectively improved, the problems of swelling and cracking of the material are prevented, and the comprehensive properties such as moisture, oxygen and re-pulping are improved.

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.

Disclosed are lagging materials for use on a driven cylindrical pulley or drum for an industrial machine. A lagging material can comprise a seaming element along the cross-machine direction (CD) of each of the opposing ends of the lagging material for forming a seam for seaming opposing ends of a lagging material when brought together. A lagging material can also comprise coatings that increase the Coefficient of Friction of a lagging material when the lagging material is installed onto the drum such that no additional adhesive is required to keep the lagging on the drum circumference when in operation. Also described is an apparatus for installing an on machine seamable lagging including at least two opposed elongate members, such that when the elongate members are drawn together, the lagging material is stretched into a seamable position to be installed on the drum.

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 medium processing apparatus includes a conveying unit, a liquid applier, and a crimper. The conveying unit conveys a medium in a conveyance direction. The liquid applier applies liquid to the medium conveyed by the conveying unit. The liquid applier includes a presser and a liquid application member. The presser presses the medium. The liquid application member contacts and is separated from the medium while the presser presses the medium. The crimper presses and deforms a plurality of media including the medium to which the liquid is applied by the liquid applier, to crimp and bind the plurality of media.

According to some illustrative embodiments, a protective product is provided that includes: at least one expandable slit paper sheet, said at least on expandable slit paper being expanded between opposing ends of said slit paper; a first embossed paper sheet facing said expanded slit paper sheet and a second paper sheet facing an opposite side of said at least one expanded slit paper sheet, at least one of said first embossed paper sheet and said second paper sheet being fixed to said expanded slit paper sheet at the opposing ends of said expanded slit paper sheet and thereby maintaining said expanded paper in its expanded state, said first embossed paper sheet having a plurality of embossings that increase the rigidity of said embossed paper sheet, whereby inhibiting deformation of said embossed paper sheet that is fixed to said expanded slit sheet paper.

Method for dry-forming cellulose products from a cellulose blank structure in a product forming unit. The product forming unit includes a blank dry-forming module and a pressing module. The cellulose blank structure is air-formed in the blank dry-forming module onto a forming wire. The pressing module includes one or more forming molds for forming the cellulose products from the cellulose blank structure in a pressing operation. The method includes arranging the forming wire in a stationary mode during the pressing operation.

The invention discloses a moisture-proof corrugated paper generation method and system based on machine vision. Humidity distribution data are obtained through image acquisition equipment, uniformity deviation characteristics are extracted through an image processing algorithm and input into an intelligent analysis model, and if deviation exceeds a threshold value, a coating thickness adjusting signal is output to determine the spraying amount of a moisture-proof agent; then, on the basis of the spraying amount, a structural integrity image in the forming stage is collected, deformation parameters are extracted, a production parameter optimization instruction is generated through a feedback verification unit in combination with the effect mapping relation model, an execution mechanism is driven to adjust the pre-drying temperature and the forming pressure, and meanwhile finished product moisture resistance detection data are obtained; finally, a closed-loop regulation and control cycle is formed through detection data and deviation characteristics, model parameters are optimized, deviation changes are continuously monitored, the mapping model is dynamically adjusted to adapt to different paper types, intelligent real-time optimization is achieved, and the production efficiency and the moisture-proof performance stability are improved.

The invention relates to the technical field of corrugated paper production, and discloses a corrugated paper production method and system.The corrugated paper production method comprises the steps that paper is subjected to raw material pretreatment, and an adhesive is prepared; the core paper obtained after raw material pretreatment is put into a corrugating roller, a lubricating agent is added, and first core paper and second core paper are manufactured through corrugation forming; after the pretreated surface paper is coated with an adhesive, the surface paper and the first core paper are overlapped, and first single-layer corrugated paper is obtained through high-temperature and high-pressure curing; coating the pretreated backing paper with an adhesive, then overlapping the pre-treated backing paper with second core paper, and carrying out high-temperature and high-pressure curing to obtain second single-layer corrugated paper; when high-temperature and high-pressure curing is carried out, paper data of the single-layer corrugated paper are obtained, and the current high-temperature and high-pressure curing state is determined based on the paper data; the first single-layer corrugated paper and the second single-layer corrugated paper pass through middle partition paper, and the corrugated paper is obtained on the basis of cold pressing bonding. The adhesive strength is improved, and the rejection rate is reduced.

The utility model discloses a kitchen paper embossing composite device which comprises side frames on the two sides and two embossing rollers in the middle, bearings are connected to the left ends and the right ends of the embossing rollers, a bearing frame is arranged on the lower sides of the bearings, the upper side of the bearing frame is fixedly connected with a sealing cover through fixing bolts on the front side and the rear side, and the bearing frame is connected into sliding grooves in the side frames in a sliding mode. Two screw sleeves are fixed on the bearing frame, the screw sleeves are connected with a screw rod through threads, the lower end of the screw rod is rotatably connected with a side frame, the lower end of the screw rod is rotatably connected in a rotating frame, the rotating frame and the side frame are fixedly installed together, the upper end of the screw rod is connected with a reduction gearbox, and the reduction gearbox is connected with a motor. The knurling rollers are driven to synchronously and oppositely move, so that the processing positions are always on the same horizontal plane, the upper side and the lower side of the kitchen paper are uniformly stressed, the bearing is positioned through the sealing cover and the bearing frame, and the knurling device is convenient to disassemble and replace.