Let's take the most widely used hybrid printing press as an example to introduce the proofing. â‘  Rotate the opening and closing hand wheel of the intaglio cylinder to separate the intaglio cylinder from the impression cylinder and add ink that meets the requirements to each ink hopper. Whether the fluidity meets the printing requirements, then check the scraping effect of the doctor blades on the gravure cylinders and adjust them as required. â‘¡ Mount the proofing film on the unwinding shaft to clamp the end, fix the film roll and wear the proofing film according to the route specified by the printing machine, and wind the film head on the installed winding mandrel. â‘¢While driving, the speed of the gravure cylinder opening and closing handwheel should be rotated slowly to adjust the pressure of the gravure cylinder to make the printed image clear. The pressure is based on the driving rod can be printed upwards and down to empty.

The pressure in the axial direction of the gravure cylinder should be uniform. ④Adjust the position of the film roll on the unwinding device so that the first color image and text can be printed on the exact position of the film. Based on the first color image and text, use the vertical overprinting adjustment mechanism to horizontally and horizontally register the second color image and text Adjustment. When the longitudinal adjustment mechanism of the helical gear is used, if the distance error between the two-color graphics and text is in, then the mechanism is used for adjustment. The third and fourth colors are analogous. Or use the main one-color graphics as the reference to adjust the color registration method as above. ⑤Check the printing quality carefully, whether the clarity and color of the picture are consistent with the sample, whether the ink drying and adhesion fastness meet the requirements and make corresponding adjustments. After the requirements are met, you can switch to normal printing.

Normal printing operation â‘  Change the printing film that meets the requirements. Remove the proofing film roll from the unwinding shaft and replace it with the required printing film. Install the winding paper core that meets the specifications in the winding position. â‘¡Print at normal printing speed. When printing, always check the ink viscosity, ink scraping, film tension, overprint accuracy, ink drying and adhesion fastness, graphic clarity, gradation and color, etc. and make appropriate adjustments to ensure printing quality. â‘¢ Correctly adjust the ink viscosity. In printing, the number of times of dilution and dilution with appropriate solvents should be increased in time, and the amount should be increased to keep the ink viscosity basically constant. â‘£Install the film to be printed. The head and tail of each roll of film are glued together, which can reduce the time of parking and rewinding.

Remove the impression cylinder from the gravure cylinder, and then take out the ink in the ink fountain and seal it in the bucket. Do not pack it with unadjusted ink. If the parking time is not long, the ink in the ink fountain does not need to be taken out, as long as the ink is placed in a cool place. When parking, the ink of the gravure cylinder, squeegee and ink fountain should be wiped off with solvent immediately. Remove the plate roller from the printing machine and apply a layer of protective oil to the surface of the plate roller, and then place the plate roller in an environment with normal temperature and no corrosive medium. When the printed products reach the specified output, they should stop immediately.

The parking steps are as follows: ① Actively shut down the power switch of the ink pump, static eliminator, drying device and winding device. ①During printing, lubricate oil on each lubrication point in time. ②When starting the printing machine, you should print at low speed first, then gradually increase the printing speed after normal. When parking, except for special circumstances, you should slow down to stop. ③If any abnormal situation is found during the printing process, it should be stopped in time to avoid further expansion of the accident. ④When the impression cylinder is stained with ink, it should be cleaned with a solvent in a timely manner. Do not scrape with a knife or sandpaper. ⑤In order to protect the normal operation of the printing press, it is necessary to periodically adjust, repair or replace parts.

Packaging cartons are made from paper products and are used to package various types of articles.Divided into a single pit (3) / double pit (5 layers) / three pits (7 layers), Carton subdivision cartons, color boxes, box and large-size odd-shaped beer boxes and other packaging. 

Cartons are low cost, easy to package, suitable for adding fillers, clean and other suitable products for factory packaging, transportationof goods, material finishing and so on.

Corrugated cardboard boxes have a wide range of uses. Corrugated paperboards are used as packaging materials and have low cost, light weight, and certain strength and stiffness. The Corrugated Carton is neat and beautiful in appearance, and can be printed with a variety of product designs and exquisite decorative advertisements. It can be produced using automatic lines with a high degree of mechanization. Waste cardboard can also be recycled. Therefore, in the packaging materials, corrugated board gradually replaced the board; corrugated boxes gradually replaced thewooden box. Corrugated carton packaging also saves valuable packaging materials such as metal and wood. Especially in the current situation in which the world`s wood resources are generally insufficient, it is of special significance. 

There are many products packed in corrugated boxes. There are canned foods, soft drinks or wine, food, meat, clothing and textiles, medicines, tobacco products, detergents, meters, hardware, electrical products, rubber products and countless other small commodities. In addition, for fragile products such as glassware, porcelain, enamelware, instruments, and heavier goods such as furniture, washing machines, televisions, refrigerators, bicycles, sewing machine heads and sewing machine panels, motorcycles, extra large seas Cotton mattresses, etc. can use corrugated boxes as packaging and shipping containers. In recent years, corrugated cartons have also been used for dry loading of difficult-to-transport goods such as fragile fresh eggs, live fish with water, flowers, fresh vegetables, fruits and fresh fish. This shows that corrugated cartons are used as packaging and loading materials, and their use is very broad.

Carton

Carton Box,Package Carton,Foldable Carton,Corrugated Carton

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