36results about How to "Reduce paper waste" patented technology

There is disclosed a method for printing metallic inks wherein a fountain solution and a first imprint ink are concurrently deposited onto a printing plate. A foundation metallic ink is then deposited onto the first imprint ink followed by depositing a second imprint ink is then onto the metallic ink. One or more layers of process ink colors can then be deposited onto the second imprint ink. The fountain solution is adjusted to have a pH of from about 3.7 to about 3.9 and the metallic ink is provided to have a tack of from about 14 to about 16.

A booklet is produced including an outer sheet and an inner sheet folded and nested together. A print image having a thickness is printed where it is between the two sheets when they nest together. A cut length is calculated using the thicknesses of the sheets and the thickness of the print image, so that when the sheets are folded and the inner sheet is nested into the outer sheet, the edges of the inner sheet will not protrude beyond the edges of the outer sheet. The inner sheet is cut to the calculated cut length either before or after printing. The cut inner sheet and the outer sheet are folded and nested together to produce the booklet.

Disclosed herein is a method that relates to paper waste reduction with a point of sale printer. The method comprising, establishing a length of paper available (PA) estimate during loading of paper into a point of sale printer and tracking a length of paper used (PU). The method further comprising, continuously updating the PA by subtracting the PU from the PA, and alerting an operator to replenish paper in the printer in response to the PA being less than a desired length of paper wasted (DPW). Additionally, the method updates the new roll paper available (NRPA) to ensure that the difference between actual paper wasted (APW) and the desired length of paper wasted (DPW) is minimal.

A two-sided receipt printing method that prints on both sides of paper and produces receipts, and can reduce white space at the leading end of receipts without conveying the paper in reverse. A device that produces two-sided receipts has a cutter, a first printhead that prints on one side of the paper, and a second printhead that prints on the other side of the paper disposed at specific intervals along the paper conveyance path from the paper exit. When an end-of-transaction declaration is received, transaction information is printed by the second printhead and non-transaction information is printed by the first printhead. After printing the transaction information, header information of a length that fits between the cutter and the second print data is printed by the second printhead. The cutter then cuts the paper at a position between where the transaction information was printed and where the header information was printed.

The invention provides a novel paper leading tool close to a vat. The tool comprises a hollow rod body, wherein a hand valve and a hollow handle are arranged at the lower end of the hollow rod body; the lower end of the hollow handle is communicated with a compressed air source; a cambered hollow spray nozzle body is arranged at the upper end of the hollow rod body; a nozzle of the hollow spray nozzle body is duckbilled; a hook is arranged at the outer side of the hollow rod body; and the hollow rod body, the hollow spray nozzle body, the hand valve and the hollow handle are all made of stainless steel. The tool has the following beneficial effects: the paper leading efficiency close to the vat can be obviously improved, the broke amount close to the vat is greatly reduced, the productionconsumption is reduced and the potential economic benefits are obvious; and the tool is convenient to use, the potential safety hazards are eliminated and the evaluation given by the operators is good.

A first printhead that prints on one side of the paper, a second printhead that prints on the other side of the paper, and a cutter are disposed to the paper conveyance path with a specific gap therebetween approaching the paper exit for the paper, and a conveyance unit that conveys the paper through the conveyance path in a device that prints duplex receipts. Based on reception of a transaction end statement, the printer prints part of the transaction information by the first printhead; prints the remaining part of the transaction information by the second printhead; prints store information, the length of which fits between the cutter and the first printhead, by the first printhead after printing the transaction information; and then cuts the paper by the cutter at a position between the area where the transaction information was printed and the area where the store information was printed.

The invention relates to a static-pressure sectional controllable spreader, which belongs to the technical field of paper making machinery and comprises a static-pressure sectional controllable roll, a backup roll, a feeding roll, an arc-shaped roll, a spreading groove, a flow guide plate, a framework and the like. The backup roll is mounted on the upper portion of the framework by a bearing, the static-pressure sectional controllable roll is mounted on one side of the backup roll, the arc-shaped roll is mounted on the other side of the backup roll, the feeding roll is mounted on the lower portion of the backup roll, the static-pressure controllable roll and the feeding roll are respectively meshed with the backup roll, and the flow guide plate and the spreading groove are mounted on one side of the feeding roll. The static-pressure sectional controllable roll replaces a scraper beam or scraper bar, the static-pressure sectional controllable spreader is supplemented with a control device, precision adjustment is realized, the horizontal spreading quantity can be controlled, paper loss and paper breakage are avoided, the quality of a product is good, the static-pressure sectional controllable spreader is high in production efficiency and convenient in operation, and cost is saved. In addition, the static-pressure sectional controllable spreader solves the problems that in the prior art, paper cannot be dried easily and buckles due to uneven horizontal spreading quantity, damage to parts is severe, and production efficiency and the quality of a paper machine are seriously affected, and paper loss and paper breakage are often caused.

A high-speed heavy-load chain scraper conveyor comprises a head frame part, a middle frame part, a V-shaped conveying chain, a tail frame part and a transition device. The head frame part comprises a head frame, an arc guide rail block, a head upper guide rail, a driving component, a head cover plate and a head lower arc guide rail; the middle frame part comprises an integrally bent main frame, a connecting plate, a rectangular pipe, an upper guide rail and a lower guide rail; the V-shaped conveying chain comprises a supporting wheel, an outer chain plate, an inner chain plate, a V-shaped panel, a sleeve, a pin shaft and the like; the tailstock part comprises a tail rack, a tensioning device, an arc guide rail block, a tail upper guide rail, a tail cover plate and a tail lower arc guide rail; the transition device comprises a mounting base, a paper passing plate, a mandrel, a sliding bearing and a rubber covered roller. The high-speed heavy-load chain scraper conveyor is simple in structure, high in bending resistance, low in production cost and suitable for batch production.

The invention discloses a printing ink presetting method based on an artificial neural network algorithm. The printing ink presetting method comprises the following steps: S1, establishing a three-layer neural network printing ink presetting model; s2, the content of the input layer comprises the average ink coverage rate, the viscosity and fluidity of printing ink and the surface glossiness of a printing stock; s3, the hidden layer is a full connection layer of the input layer; s4, the input of the output layer comes from the calculation result of the hidden layer through the activation function g (z); s5, using empirical data to initialize model parameters; s6, arranging a model training data set; s7, substituting the sorted training data into the established three-layer neural network ink preset model; s8, optimizing the eight model parameters according to the error between the model output y value and the true value Y; and S9, substituting the three parameters corresponding to the new movable part into the optimized model in the step S8 to calculate the corresponding ink tooth opening degree. The device has the beneficial effects that the printing ink presetting accuracy is improved, and the printing quality and efficiency are improved.