Aluminum foil bag printing requirements for ink

In the printing of aluminum foil bags , benzene exceeding the standard has always been a problem that plagues manufacturers. However, if a water-based gravure ink is used, this condition can be changed to reduce the contamination of the food contained in the residual solvent. In order to ensure the printing effect of custom aluminum foil bags, there are 7 points to note in the process of use.
1. Adjust the viscosity of the ink with water, generally controlled at 15 to 25 seconds. Prevent the viscosity from being too high, resulting in dirty plates and pastes.
2. When using water-based ink for aluminum foil bag printing, the PH value should be controlled between 8.5 and 9.
3. The drying temperature should be controlled between 50 and 60 degrees Celsius. When drying, the air volume should be large to ensure that the water-based ink transferred to the film can be quickly dried.
4. After the ink is poured into the ink tank, the plate cylinder is idling for 2 min to 3 minutes, and then printing is started to ensure that the plate cylinder is wet and the ink is effectively stirred. In the process of printing, if there is a temporary shutdown, it is necessary to ensure that the printing plate continues to rotate, to prevent the ink on the printing plate from drying up, and the grid is blocked.
5. The depth of the grid of the plate cylinder is preferably shallower, which is beneficial to speed up the printing speed and save ink. The mesh is too deep, which not only hinders the printing speed, consumes ink, but also tends to cause adhesion. The specific depth is maintained at 15 to 25 um.
6. Before printing the customized food foil bag, adjust the viscosity of the ink according to the depth of the plate cylinder. Do not add water to the ink during the printing process. If necessary, add new ink to ensure the audio color is consistent.
7. After printing, immediately wash the plate cylinder, pour clean water into the early ink tank, rotate the plate cylinder for cleaning, or add 3% detergent solution for cleaning.
At present, the country has made the aluminum foil bag into the mandatory 3C certification catalogue, which means that the water-soluble aluminum foil bag printing will be more developed, because it has no benzene, no irritating odor, no pollution, very Suitable for printing food foil bags. Under the general trend of environmental protection, this environmentally friendly ink-printed aluminum foil bag product will usher in excellent development opportunities.

Pe Plastic Sheetfull name is Polyethylene Sheet.

Physical properties: PE  plastic Sheet is the most simple structure of the macromolecular organic compounds, the world's most widely used polymer materials, composed of ethylene polymerization, depending on the density is divided into high density polyethylene, medium density polyethylene and low density polyethylene.


Classification of PE Sheet
(1) LDPE Sheet 
       Low density polyethylene Sheet (also known as high pressure polyethylene Sheet)
       
(2) LLDPE Sheet
       Linear low density polyethylene

(3) MDPE Sheet
       Medium density polyethylene
       
(4) HDPE Sheet
       High density polyethylene (also known as low pressure polyethylene)


 (5) UHMWPE Sheet 

      Ultra high molecular weight polyethylene

 (6)Modified polyethylene sheet
      Chlorinated polyethylene (CPE) and crosslinked polyethylene (PEX)

 (7)Ethylene - ethylene copolymer
     Ethylene/propylene copolymer (plastic), EVA, ethylene, ethylene butene copolymer - other olefins, such as octene POE, cyclic olefin copolymer, ethylene/unsaturated ester copolymer (EAA, EMAA, EEA, EMA, EMMA, EMAH).
Polyethylene, which has a molecular weight of 3 million to 6 million, is known as UHMWPE.

Ultra high molecular weight polyethylene is very strong and can be used for body armor.


Applications:
1. Papermaking industry: suction box board, scraper, molding plate, bearing, gear;
2. Mining industry: charging barrel, abrasive and adhesive-resistant back lining for warehouses;
3. Chemical industry: acid pump, filter plate, worm gear, bearing;
4. Food industry: packing machinery parts,   bottle guide, screw, wear plate, slide way, stud weld, roller and other transmission parts;
5. Textile industry:buffer board;
6. Food processing industry: chopping block, refrigerating plant;

7. Wharf: anti-collision board.


Advantages: 
1. Acid and alkali resistance, resistance to organic solvents 
2. Excellent electrical insulation and static resistance
3, Can still maintain a certain touness even at low temperature
4. Extremely high impact strength
5. Low friction coefficient
6. Non-toxic
7. Low water absorption
8.Lower density than any other thermoplastic plastics (<1g/cm3)

 Disadvantages:
 PE Plastic sheet have Weak mechanical property, air permeability, easy deformation, easy ageing, brittle, brittle less than PP, easy stress cracking, surface hardness, easy to scratch.
Difficult to print, in printing, surface discharge treatment, cannot electroplating, the surface has no luster.
       
       
Specification: the diameter of the PE rod can be produced from 2mm to 250mm. The conventional length is 1000mm, and the length is unlimited.
The thickness of PE sheet material can be produced from 0.3mm to 1.9mm, the normal width is 600mm, the width cannot exceed 1200mm, the length is not limited.
The thickness of plate can be produced from 2mm to 180mm, the usual specification of 2-10mm is 1000mm* 2000mm, and the commonly used specification of10-180mm is 600*1200mm.PE sheet can also be customized according to requirements, and the width cannot exceed 1200mm, and the length is not limited
 

Color: natural color is wax white, also can be customized black and color, the order of the color to order is 500KG.


Modified varieties: PE sheet/rod can be added to the fiberglass, copper powder and molybdenum disulphide to enhance the bar.
Add antistatic agent to the permanent antistatic electric bar, and the volume resistance value is between 6 to 9 power of 10.Add flame retardant to the flame retardant rod from UL 94V-0 to HB flame retardant grade, and other modification requirements are required to customize various additional properties according to the actual use of the customer.


Combustion characteristics:

Combustion situation: easy

Combustion flame status: molten drop, yellow lower blue

After the fire: continue to bur

Smell: the smell of wax burning

    

 Product certification: most environmental certification reports and safety reports for raw materials, such as SGS report, CTI report, UL report, MSDS safety information, etc.


 






PE Plastic Sheet

Pe Plastic Sheet,White Pe Plate,Standard Material Pe Plastic,Transparent Pe Plastic Sheet

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