Deguang

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The gravure printing machine adopts immersion ink or inkjet method to give ink

Installation and renovation of gravure printing machine 1. After the gravure printing machine is changed to vertical installation, the ink can be supplied by immersion ink or inkjet method. The use of volatile fast-drying ink requires a drying device. Most of the cables originally laid on the ground are routed on the top of the paper shelf layer, so the cable tray needs to be made in advance. Generally, improvements can be made on the original equipment basic drawing. 2. Measure and draw lines on the basis of the new factory, and re-install the footings. 3. Before each part of the gravure printing machine is set down, the joint surface between the parts should be carefully cleaned and trimmed. 4. Before moving the gravure printing machine, make a backup of the related computer programs of the equipment in case of unexpected events. 5. Before the gravure printing machine is powered off, the mechanical and electrical adjustment parts should be returned to the zero position; the arm of the paper holder should be perpendicular to the ground in order to install the support rod. https://www.deguang-machine.com/gravure-printing-machine-adopts-immersion-ink.html

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The difference between printing machine and printer

The printer is an output device of the computer, used to print the computer processing results on the relevant media. A device that prints computer operation results or intermediate results on paper in a prescribed format in the form of numbers, letters, symbols, and graphics that can be recognized by humans. Its working principle is to first make the printed text and image into a printing plate and load it into the printing machine. Then apply the ink to the place where there are text and images on the layout. Then directly or indirectly transfer to paper or other substrates, so as to replicate the same print as the printing plate. Printing machines are generally used in printing plants to print books and newspapers in large quantities and with the same specifications. The difference between printing machine and printer: printing machine uses ink cartridge, printing machine uses ink, different things, besides, printing machine is more expensive than printing machine! Printing machines are generally used to print a large number of items such as books and picture albums! The printing machine can only do simple printing, and the area is generally very small a4 size, plus a3 size! Its principle is similar to that of a digital printing machine, but it is a non-production equipment used in offices and homes. Well, the prices vary greatly. Color inkjet printers can be bought at a few hundred yuan cheaper, while digital printers, even in monochrome, black and white, are hundreds of thousands yuan cheaper. Printers and printers are both machines used to print text and images. What is the difference between the two? What equipment is most suitable for the printing machine, and what equipment is used for the printer? Here, I want to talk briefly, I hope it will be helpful to you all. Under normal circumstances, the printing machine is composed of plate loading, inking, embossing, and paper feeding mechanisms. The digital printing machine adopts toner and photosensitive cylinder to sensitize, and transfer to paper. The printing effect and speed are better and belong to the production equipment. Household printers generally use ink-jet methods. The nozzles spray ink directly on the paper, and their printing accuracy and speed are not as good as digital printers. https://www.deguang-machine.com/printing-machine-and-printer.html

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Composition of dry laminating machine

The operating environment has a great direct impact on the use of the slitting machine, which will directly affect the service life and equipment loss. First of all, the room where the slitter is located should be well ventilated to prevent corrosion in high temperature or humid environments; for better use, the temperature should be between minus 5 degrees Celsius and 40 degrees Celsius to prevent danger caused by the influence of the weather; Direct sunlight can easily reduce the service life; some flammable, explosive, acid and corrosive gases and liquids should be avoided to prevent damage to the parts; when installing, the ground should be leveled and fixed to prevent vibration and displacement; and One thing is to avoid electromagnetic interference, because the system operation is susceptible to interference. The dry laminating machine is like a razor, the single-sided blade or double-sided blade is fixed on a fixed knife holder, and the knife is dropped during the operation of the material, so that the knife can cut the material longitudinally to achieve the purpose of slitting. Grooving and slitting means that when the material is running on the grooved roller, the cutting knife is dropped in the groove of the grooved roller to cut the material longitudinally. At this time, the material has a certain wrap angle on the grooved roller, which is not easy to drift. When slitting the cast PP film or the film with narrow side material, this slitting method is often used to improve the slitting efficiency. But for hanging slitting, its disadvantage is that it is inconvenient to set the knife.

https://www.deguang-machine.com/Composition-of-dry-laminating-machine.html

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GSGF800.1100A Fully Automatic High Speed Dry Laminating Machine

https://www.deguang-machine.com/GSGF800-1100A-Dry-Laminating-Machine.html

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Undercutting phenomenon of bag making machine

Reasons for undercutting of bag making machine: 1. The heat-sealing temperature is too high: in the bag making process, the heat-sealing temperature is the main reason that affects the sealing fastness. The resin is heated to a certain temperature and begins to dissolve. This point is called the melting point. When the temperature exceeds the melting point of the resin, the resin will produce a paste with a certain viscosity. The temperature setting is generally between the melting point of the resin and the degree of decomposition. Therefore, if the temperature is too low and below the melting point, the material cannot be heat sealed without viscosity. The temperature just exceeds the melting point, the material can be heat sealed but the fastness is not enough. When the temperature reaches the decomposition temperature of the material, the material can be heat-sealed but the material undergoes physical changes, and the edge of the sealing knife is prone to undercutting. 2. Heat sealing pressure is too large: heat sealing requires a certain pressure. The normal heat sealing pressure should make the surface of the melted film closely bond together, but also make the melted resin with a certain viscosity can withstand and not collapse. thin. Generally, the standard heat sealing pressure is 2-3kg/㎡. Too much pressure will cause the material to become thinner and cause undercutting. However, when using a wide ironing knife, the pressure should be increased appropriately to ensure the heat sealing fastness. 3. Heat-sealing time: It refers to the time that the heat-sealing hot knife stays on the film, which is reflected in the machine speed and the gap between the hot knife seat beam and the support during the production process. The heat is transferred from the hot knife to the heat-resistant cloth, and then to the heat sealing layer through the printing film, and there is a temperature gradient across the heat sealing section. The thicker the film, the lower the temperature, and the greater the temperature difference between the inside and outside of the film. The heat sealing time should be longer during heat sealing, but shorter. In addition, the single-side pressing bag making machine has a more serious temperature difference between inside and outside. Because of the temperature difference between the hot knife and the heat-sealing layer, the setting temperature of the hot knife is generally higher than the actual temperature required. 4. The reason for the hot knife and silica gel: the edge of the hot knife is sharp and not chamfered, the surface of the hot knife is uneven or the heat-resistant cloth is not attached. Too hard silica gel will cause undercutting of the seal. The composite peel strength is poor, and the reinforcing effect of the printing film on the heat-sealing film is reduced, which causes the heat-sealing layer to be stressed and undercut. Zhejiang Deguang Machinery sells professional bag making machines. Our products are sold all over the world. If you want to know more about the root cutting phenomenon of the bag making machine, please contact us.

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Flexo printing machine operation inspection

During the operation of the flexo printing machine, the operator should inspect the machine and all printed jobs. Listed below are the contents and related precautions that are usually checked when the printing machine is running.

1. Confirm whether the printing machine has any abnormal noise caused by mechanical failure.

2. Repeatedly check the ink level in the ink fountain or the ink pump device. When using ink, check the ink flow into the ink fountain.

3. Make sure that the paper roll indicator is switched on. Be prepared to change the paper roll and splicing paper.

4. In the operation of the printing machine, use strobe flash to improve printing quality. During the operation of the flexo printing machine, the registration of the printed product may change.

This change in registration may be caused by the following reasons:

① The tension of the paper tape between the paper feed roller and the output pull roller of the printer is incorrect.

②The rewinding tension is too high.

③The tape splice is offset.

④The materials of the paper roll are different.

⑤The edge of the paper roll is slack, and the paper tape is deflected to one side.

⑥The thickness of the tape and the adhesive layer on the paper roll are uneven.

 https://www.deguang-machine.com/Flexo-printing-machine-operation-inspection.html

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Zhejiang Deguang Provides YTZ600-1300 Flexo Printing Machine For Sale

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How to purchase gravure printing machine

Large-scale gravure printing machine is currently the most important key machine in the flexible packaging industry. To measure the production capacity of an enterprise, it is generally judged by the number of large-scale gravure printing machine it owns. Therefore, after technical and economic analysis and evaluation, how to purchase gravure printing machine reasonably has become the most critical decision issue for enterprises. Let's briefly introduce it below.

The selection of large-scale gravure printing machine should first consider its application in production, so as to give full play to its investment effect; secondly, it must be technologically advanced to avoid being quickly eliminated by industry technology; finally, there must be a complete benefit evaluation and tracking system To ensure the economic benefits of machine selection. 　　 When choosing, printing companies need to measure whether the machine productivity is compatible with the company's business policy, factory planning, production plan, transportation capacity, etc., to avoid imbalances in production and failure to keep up with service supply. The machine must meet the technical requirements of the product process, be reliable, safe, and conform to the principles of ergonomics, be easy to operate, and be flexible in control. 　　 Printing companies must also consider the design and manufacturing quality and maintainability of the machine when purchasing. The longer the mean time between failures of its main components, the better. You can refer to the reliability indicators of product design provided by the machine manufacturer for selection. At the same time, printing companies should also consider the performance of machine to ensure production safety. The machine should have necessary safety protection designs and devices to avoid human and machine accidents and economic losses. Finally, printing companies also need to consider the environmental protection of their machine, and require their noise, vibration frequency, and harmful emissions to be controlled within the scope of national and regional standards when selecting models. Zhejiang Deguang gravure printing machine is of good quality and many types. We use advanced manufacturing processes and technologies. To learn more about how to purchase gravure printing machine, continue to pay attention to Zhejiang Deguang website.

https://www.deguang-machine.com/How-to-purchase-gravure-printing-machine.html

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Undercutting phenomenon of bag making machine

Reasons for undercutting of bag making machine: 1. The heat-sealing temperature is too high: in the bag making process, the heat-sealing temperature is the main reason that affects the sealing fastness. The resin is heated to a certain temperature and begins to dissolve. This point is called the melting point. When the temperature exceeds the melting point of the resin, the resin will produce a paste with a certain viscosity. The temperature setting is generally between the melting point of the resin and the degree of decomposition. Therefore, if the temperature is too low and below the melting point, the material cannot be heat sealed without viscosity. The temperature just exceeds the melting point, the material can be heat sealed but the fastness is not enough. When the temperature reaches the decomposition temperature of the material, the material can be heat-sealed but the material undergoes physical changes, and the edge of the sealing knife is prone to undercutting. 2. Heat sealing pressure is too large: heat sealing requires a certain pressure. The normal heat sealing pressure should make the surface of the melted film closely bond together, but also make the melted resin with a certain viscosity can withstand and not collapse. thin. Generally, the standard heat sealing pressure is 2-3kg/㎡. Too much pressure will cause the material to become thinner and cause undercutting. However, when using a wide ironing knife, the pressure should be increased appropriately to ensure the heat sealing fastness. 3. Heat-sealing time: It refers to the time that the heat-sealing hot knife stays on the film, which is reflected in the machine speed and the gap between the hot knife seat beam and the support during the production process. The heat is transferred from the hot knife to the heat-resistant cloth, and then to the heat sealing layer through the printing film, and there is a temperature gradient across the heat sealing section. The thicker the film, the lower the temperature, and the greater the temperature difference between the inside and outside of the film. The heat sealing time should be longer during heat sealing, but shorter. In addition, the single-side pressing bag making machine has a more serious temperature difference between inside and outside. Because of the temperature difference between the hot knife and the heat-sealing layer, the setting temperature of the hot knife is generally higher than the actual temperature required. 4. The reason for the hot knife and silica gel: the edge of the hot knife is sharp and not chamfered, the surface of the hot knife is uneven or the heat-resistant cloth is not attached. Too hard silica gel will cause undercutting of the seal. The composite peel strength is poor, and the reinforcing effect of the printing film on the heat-sealing film is reduced, which causes the heat-sealing layer to be stressed and undercut. Zhejiang Deguang Machinery sells professional bag making machines. Our products are sold all over the world. If you want to know more about the root cutting phenomenon of the bag making machine, please contact us. Tag: bag making machine undercutting, undercutting of bag making machine reasons

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We make printing machine, laminating machine, slitting machine, cutting machine and bag making machine, we can sell around 500 sets machines totally in one year, until now, we have the biggest printing machine market share in china.

https://www.deguang-machine.com/p-about.html

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We are established in 1987, we specializes in complete set of plastic soft packaging equipment and label printing equipment. Until now, we have 3 workshops which total cover an area of 32000㎡，and more than 200 experienced workers.

https://www.deguang-machine.com/Rotogravure-Printing-Machine.html

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Before the gravure printing machine is officially started for printing, the gravure printing machine should be adjusted according to the printing process requirements of each product, and a series of printing parameters matching the printing process requirements of the product should be set on the printing machine. Mainly consider the following aspects.

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Flexo printing machine operation inspection

During the operation of the flexo printing machine, the operator should inspect the machine and all printed jobs. Listed below are the contents and related precautions that are usually checked when the printing machine is running.

1. Confirm whether the printing machine has any abnormal noise caused by mechanical failure.

2. Repeatedly check the ink level in the ink fountain or the ink pump device. When using ink, check the ink flow into the ink fountain.

3. Make sure that the paper roll indicator is switched on. Be prepared to change the paper roll and splicing paper.

4. In the operation of the printing machine, use strobe flash to improve printing quality. During the operation of the flexo printing machine, the registration of the printed product may change.

This change in registration may be caused by the following reasons:

① The tension of the paper tape between the paper feed roller and the output pull roller of the printer is incorrect.

②The rewinding tension is too high.

③The tape splice is offset.

④The materials of the paper roll are different.

⑤The edge of the paper roll is slack, and the paper tape is deflected to one side.

⑥The thickness of the tape and the adhesive layer on the paper roll are uneven.

Details: https://www.deguang-machine.com/Flexo-printing-machine-operation-inspection.html

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Congratulations to Zhejiang Deguang Machinery Co.,Ltd website successfully launched!

Congratulations to Zhejiang Deguang Machinery Co.,Ltd website successfully launched!Thanks to Shanghai Zhendao Information Technology Co., Ltd for the technical support of our website, welcome new and old friends to visit the website.

We are established in 1987, we specializes in complete set of plastic soft packaging equipment and label printing equipment. Until now, we have 3 workshops which total cover an area of 32000㎡，and more than 200 experienced workers.

We make printing machine, laminating machine, slitting machine, cutting machine and bag making machine, we can sell around 500 sets machines totally in one year, until now, we have the biggest printing machine market share in china.