Make flexographic printing more efficient.

Flexographic printing is the use of a flexible letterpress printing flexible way, it has less investment in equipment, high technology revenue, which will help reprinted wide printing adaptability, easy device operation, high printing efficiency and quality of the printing ink is relatively a series of significant advantages such as stability, and because the process uses environmentally friendly water-based inks for printing, the ink may be better to avoid contamination of print or interior products, therefore, more suitable for printing food, medicine and other packaging products, deep printed by manufacturers and customers, along with the trend of low-carbon economy continues to approach, flexible printing process will be more widely promoted and applied.

Analysis flexographic printing process characteristics.
Flexographic printing plate with the use of the process for the production of flexographic, there are solid or liquid resin plate for plate-making, printing properties of different materials and have different effects print quality. Due to the characteristics of the plate with a flexible, lighter printing pressure, printing adaptability, both thick corrugated board printing, but also thin and soft material printing printing plastic film; either printed strong absorbent paper towels, also can print a non-absorbing material such as aluminum foil. As a result of strong liquidity liquid ink, and the plate is soft and smooth, can better overcome the shortcomings of printed material surface roughness, and then get ink thick, colorful print quality results.

Plate design factors that should be considered.
Because flexographic plate is soft, has a certain elasticity and thickness is relatively large, when the paste on a cylindrical drum, corresponding to the printed version of the portrait of the circumferential surface of the drum would produce a certain bending deformation, especially the larger the plate thickness, surface graphics pasted plate deformation coefficients greater, thereby enabling the graphics and printing out the document size errors. If the print layout of the network structure, dot gain distortion is the main problem caused by printing color deviation.

Plastic bags introduction and problem.

Plastic bags introduction and problem.
Plastic bags typically are made from one of three basic types: high-density polyethylene (HDPE), low-density polyethylene (LDPE), or linear low-density polyethylene (LLDPE). Those thick, glossy shopping bags from the mall are LLDPE, while grocery bags are HDPE, and garment bags from the dry cleaner are LDPE. The major difference between these three materials is the degree of branching of the polymer chain. HDPE and LLDPE are composed of linear, unbranched chains, while LDPE chains are branched.

Different from PP woven bags or PP bags,PE bags are not readily biodegradable, environmental costs of plastic bags are burdensome for communities and the planet, the cost of plastic bags for retailers is pretty low. Made from ethylene, a byproduct of petroleum or natural gas, plastic bags are so cheap and flimsy that cashiers use them freely, double bagging as a matter of course and often sticking just a few items in each bag. As a result, shoppers end up with piles of plastic bags spilling out of closets and threatening to take over cupboards, until we finally throw up our hands and either dump them in the trash or, if we’re lucky enough to live in an area where stores provide plastic bag collection bins, cart them back for recycling. Sure, some of us reuse plastic shopping bags to line our waste bins or to pick up dog poop, but the bags still end up in the landfill.

Plastic bags are easily picked up and carried by the wind. They can escape from trash bins, recycle bins, garbage trucks, and landfills, and end up littering the landscape. Blowing down the street, flapping from trees, clogging storm drains (costing municipalities millions of dollars in cleanup costs), and making their way out to sea,also can be dangerous to animals. And they persist in the environment, causing harm for a very long time.

Today,new plastic technology appeared, one solution to this problem is to make degradable bags, such as those from starch. Starch, obtained from corn or potatoes, can be converted into lactic acid, which can be polymerized to the biodegradable plastic known as polylactide. Another solution is to add an ultraviolet-light absorber to make the material degrade when exposed to sunlight. Unfortunately, these solutions can make the plastics more expensive, so they haven't caught on with consumers.

Plastic packaging solutions introductions.

Modern plastic packaging has made life easier in many ways, hence the high consumption of plastic products with the increasing need for light weight packaging solutions in the world, the applications of plastic will continue to be a growing trend in the packaging sector.Plastic plays a major role in delivering and sustaining the quality, comfort and safety of modern lifestyles; the impressive ratio of cost to performance also means that people in all income groups can enjoy these benefits.

The use of plastics for shipping and storage will continue to grow. Strong, durable and tear resistant, plastic packaging saves energy, space and money. Plastic containers, which generally require less energy to manufacture than other packaging, also require less fuel to transport than heavier materials. Additional savings come from reductions in shipping damage and elimination of the need for additional packing materials, such as partitions between individual products. Strong enough for stacking and moldable into space-saving shapes, plastic containers can maximize warehousing room and lower storage costs.

Nowadays,plastic packaging has made life more and more easier and convenient.