For the production of UV offset printing, after understanding the necessary configuration of the offset press, let us look at the requirements for printing materials.
1. UV ink
UV inks are light-curable absorbent inks, and since many cards require laminating, their performance is particularly important. There are two key points: First, the need for high temperature, high pressure, in the laminator high temperature, high pressure does not change color, do not fade; Second, the bonding force with the plastic film to be large, the minimum standard required to reach 6N tension. In addition, the choice of UV ink for card printing is also quite critical, in addition to ensuring the quality of the ink itself, it must also match the wavelength of the printer's UV lamp. Since many manufacturers use color inkjet drafts as the original for printing, it is recommended to choose the standard hue of yellow and magenta when choosing the ink. Blue ink. In addition, when spot color inks are formulated, inks with low viscosity and good fluidity should be selected as far as possible. The European Ark ink is preferred.
2. Special printing plate
UV offset printing plate wear-resistant, resistant to printing, no need to protect the glue when the machine stops, the old version can be used again, and is very suitable for UV ink transfer, high reduction ratio when printing, can basically reach 2% of the outlets Without losing, 98% of the outlets can be distinguished. At present, Japan Fuji UV version is of good quality, taking into account the cost of printing, for small batches of short-lived, text version can be properly used ordinary version, but the film is easy to wear, printing should pay more attention.
3. Blanket and bag lining
In order to ensure the best transfer of UV ink and dot reducibility, it is best to use air-cushion blanket, because it has good acid resistance, oil resistance. Hydrophobicity and good ink transfer performance can ensure that the dot deformation during the printing process is minimal, the printed graphic is clear, the reproducibility of the high-profile part is good, and the plate wear is small.
Eraser roller liner lining is better than neutral hard, because the surface of PVC and other sheets is rough, which can easily lead to high printing dot gain, and the use of neutral hard liner can make the dot clear, smooth and reproducible. The geometric shape of the graph changes little, and the increment of the width of the graphic and printed sheets is relatively small.
4. PVC and other sheets
Sheets such as PVC have the distinction between bright and matt surfaces. The bright surface is smooth and the matt surface is rough. Selecting the printing surface is very important and many print quality problems can be avoided. Generally, the matt surface of the sheet such as PVC is used as the printing surface to ensure that the actual ink printing does not pull the hair, the network points are firm, the adhesion between the ink and the material is strong, and the ink is full and does not expose the small white spots. In addition, the printing pressure is appropriately increased by 0.02 to 0.05 mm from the standard pressure.
5. Auxiliary materials
UV offset printing used car wash, blanket cleaning agent. Cleaning solution, etc. are best to use special products, which for UV ink roller. The life and performance of UV blankets and UV plates are particularly important. Although the cost will be higher, it can be flexibly applied according to the actual situation. Ensure that the ink roller is cleaned once a week; use a special revert agent to clean the blanket when it is stopped, so that it can not only ensure the elasticity of the blanket, but also ensure the color balance and avoid color aberration when restarting.
Chemical liquid truck
Chemical liquid truck is widely used in loading and unloading of acid, alkali, salt and other corrosive, medium risk. Chemical liquid transport tanks material could be selected according to the need of carbon steel, carbon steel lined with plastic, stainless steel, plastic cans, cans, etc.
The structure
Chemical liquid truck by the second class chassis, chemical liquid truck tanks, chemical pump and other parts
After the man build chemical liquid truck
classification
According to the transport medium
According to the different kinds of chemical liquid truck transport medium are: hydrochloric acid transporter, transporter of sulfuric acid, hydrofluoric acid transporter formic acid transporter, acetate (glacial acetic acid) transporter, hydrogen peroxide (h2o2) transporter, transporter phosphate, ammonia transporter, transporter, sodium hydroxide solution, potassium hydroxide transporter sodium hypochlorite (bleach water) transporter, transporter, formaldehyde ethanol transporter, toluene transporter, transporter, xylene isopropyl alcohol transporter, dimethylamine easy transporter, naphtha (solvent oil) transporter. According to these transport medium is different, the material is different also, according to different materials, the chemical industry is divided into carbon steel, stainless steel car, car all steel lining plastic car, car all plastic, aluminum and aluminum alloy and so on
According to the shape
Pointed chemical liquid truck, flat chemical liquid truck, small three axis after chemical liquid truck, build chemical liquid truck, after the first four eight chemical liquid truck, etc
According to the chassis
Dongfeng, liberation, Europe mann, steyr type chemical liquid truck, etc
According to the emission standard
Five, four, three, the two nations
CLW GROUP TRUCK Chemical liquid tank truck Special parts
1, tanks can choose material: carbon steel lined with plastic or stainless steel plate.
2, pot body shape: oval, square shape, round.
4, chemical pump: use domestic famous enterprises special chemical liquid pump with high quality.
5, function: can be independent or warehouse, packing different chemicals, liquid food.
6, set inside the multichannel all plastic wave plate. Comprehensive by high-pressure gas tightness test, high intensity of tank, the center of gravity, vehicle transport safety smoothly.
Tank production standard
1. The tank is wisco carbon steel 6-8 mm thick high quality steel or high quality stainless steel manufacturing according to international standards.
2. Vats with advanced welding technology, try to form high pressure gas after molding leak detection of tank, the tank has high strength, stable center of gravity, smooth vehicles carrying security etc.
3. Tanks after welding using blasting pretreatment process, realize the rust removing rust, appearance is beautiful and durable.
Security considerations
High chemical liquid truck is belong to dangerous goods transport vehicle types, through baidu encyclopedia, although we can know about the chemical liquid truck overview, structure composition and the material requirements, but few of them know what are the specific harm, should be how to prevent in driving at ordinary times? Here, the detailed explanation for everyone:
CLW GROUP TRUCK Chemical liquid truck is mainly with explosive, flammable, toxic, corrosive and radioactive hazard, the safety of the people have a certain potential hazards, complete the transportation task is a strong and professional technical work, taken in the process of transportation, can cause serious loss of life, property and environment.
Security considerations, the first is must have the qualification of dangerous goods transportation driver and supercargo; The second vehicle safety status and safety properties qualified; In the third when loading the goods should pay attention to details; The fourth driving carefully, smooth driving, driving the attendance check, choose proper route, driving time properly; The fifth careful unloading, prevent pollution; Emergency treatment well-prepared.
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CLW GROUP TRUCK , https://www.clwgrouptruck.net