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Tuesday, December 31, 2013

Drying and storage of grain.


It’s important to care the drying and storage of grain.

When grain is stored on the ground, earth is crowned under the pile to aid in drainage. A vapor barrier, is also placed on the ground to keep ground moisture from wetting the grain. Check grain temperature and moisture. If the pile is on well-drained, gravel-covered soil, the vapor barrier probably isn't necessary.
If you are going to largely manage to fill each store with dry grain there's a reluctance to put in small pockets of relatively much wetter grain. This in ability to cut small amount of wet grain can cause significant delays. For example, suppose that you are close to finishing a farm and rain comes before you finish the last 10ac. You then have 10ac or so to cut before moving the combine and it's not feasible to come back for it at a later date. Suppose, also, that a day arrives where grain moisture hovers around 19-20% with the prospect of good fine dry weather from that day on wards. At the moment we would wait until the day after, cut the 10ac, and then spend a hour or so moving, which is an hour or two of wasted combining in good conditions. If a grain pile is covered, plastic tarp is generally adequate, although covering large piles of grain can pose a challenge. Whether the pile is covered or not, the top surface should be smooth in order to aid drainage. The cover should be placed to carry water away from the grain. Aeration helps control any condensation that might occur under the plastic cover.

Try to design the building so that it has a natural airflow. Make sure the building exterior is well-drained, weather-tight, rodent-proof and not physically damaged by the forces of the grain. If you detect any problems, correct them immediately. If necessary move the grain to a different storage facility.You can set up a thermal chimney to use solar energy to get the air moving. You can also use a double skin wall made of steel sheeting to use solar heat to help dry the crop. Once it is dry, then you can use a hermetically sealed bag or bags for longer term storage, but it must be dry before you seal the bags otherwise you will get moud and the crop will be destroyed. Don't assume that you can use standard kit from Europe or the USA. Much of this depends on reliable electricity supplies and that is something you probably don't have. If a drying fan stops due to a power cut in the middle of the drying process, it will cause real problems. Its vitally important to get things right.

Sunday, December 29, 2013

What additives are usually used in plastic packaging bags?


In order to improve the performance of plastic bags, it need to add some additives its stability during the production process,commonly used additives are the following:

Heat stabilizer, can improve the thermal stability of the plastic material,then can improve its adaptability to different temperatures.

Plasticizers,can improve toughness and ductility of the packaging bags, not easy to be shredded.

Anti-static agents, on the surface properties of the bag make improvements to prevent the generation of static electricity.

Colorant,can change colors, improve the appearance, at the same time improving its optical properties.Wide variety of coloration products for packaging applications.Suitable for long-term coloration and visual appeal.

Anti-oxidants,can prevent the occurrence of aging and prolong bag's life.

Anti-scratch additives,are capable to bind effectively to the polymer matrix and to avoid migration.

Master batch fillers, effectively reduce production costs of plastic bags by filling in the material.

Additives help to improve surface properties of polymers like scratch resistance and surface smoothness. Higher output and better processing of compounds can easily be achieved by applying processing aids.Packaging is also an essential element of content protection, in particular for food and beverage,for example,flour is always packed in PP woven bags(or named PP bags).Therefore, packaging materials do contribute to aesthetic enhancement, convenience-in-use functionality, content protection and preservation and low additional costs for mass production.




Wednesday, December 25, 2013

Plastic packaging solutions introductions.

Plastic packaging products,news and tips of international business.: 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 l...

Plastic bags introduction and problem.

Plastic packaging products,news and tips of international business.: 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), lo...

Make flexographic printing more efficient.

Plastic packaging products,news and tips of international business.: 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 reven...

Factors impact the international business.

Plastic packaging products,news and tips of international business.: Factors impact the international business.: Becoming familiar with the international business, its laws, customs, and culture is as important as calculating the costs, revenue, an...

What is sampling inspection?

Plastic packaging products,news and tips of international business.: What is sampling inspection?: Sampling Inspection involves inspecting a relatively small number of items from a batch or lot and then using the results of this sample to...

What is sampling inspection?


Sampling Inspection involves inspecting a relatively small number of items from a batch or lot and then using the results of this sample to either accept or reject the entire lot. The accept/reject criteria is the number of defective items found in the sample.Sampling inspection relies on statistical probability and it is possible that a good batch will be wrongly rejected, or a bad batch will be wrongly accepted. This can have significant economic consequences and so it is usual to use a published sampling plan.

The sampling either for the grading or for checking the correctness of the grading should be done most accurately, because unless the sample is truly representative of the entire lot, correct grading can not be done. The general characteristics of the commodity should be preliminarily inspected before drawing  samples from the lot.In the case of packed material or the packing material, stitching of the bags or metallic linings, the gross and net weight of the contents etc., should be invariably noted and verified.

Sampling must be appropriate to the application, cost effective, and integrated well into the quality system. A policy of 100% inspection tends to promote the status quo. Two kinds of sampling are used in inspection as a device for improvement and to reduce the amount of inspection: Product Control (acceptance of unique lots) and Process Control (acceptance of a process).The objective of process control is to characterize the process and not necessarily the product. Therefore, the sampling procedures are not necessarily those appropriate for random sampling from the lot of product produced over a given period. Rather, the samples are structured to give signals about the process. In contrast, random samples are used in acceptance sampling to characterize the population of product produced throughout a given period of production.

Sampling inspection is always used in plastic products inspection during the process.

Monday, December 23, 2013

Factors impact the international business.


Becoming familiar with the international business, its laws, customs, and culture is as important as calculating the costs, revenue, and profits of a planned expansion. You should know these factors impact the international business.

The first factor is that the parties must deals with the laws, policies and political authorities of more than one nation. These laws and policies may be inconsistent, or even opposed. Such as arbitration clauses, specification of the governing laws, and tax.

The second factor is the presence of different currencies. Different currencies give rise to two problems. Since the relative value of different currencies varies over time, the actual value of the prices or payments set by contract may vary, and result in unexpected losses or gains. So business deals will often depend upon the willingness of governments to make currency available. 

The third factor is governmental authorities. Governments often play a much larger role in foreign business. In some countries, the government controls more aspects of daily life than in others. While the common usage treats totalitarian and authoritarian as synonyms, there is a distinct difference. For the purpose of this discussion, the main relevant difference is in ideology. Government-owned businesses may have different goals from private companies.

The fourth is international ventures are vulnerable to sudden and drastic changes in their circumstances. For example, war or revolution, changes in government, or currency devaluation have an impact on international businesses. Besides, be aware of the risk of changing tax rule interpretations in emerging markets. In emerging countries, the tax laws themselves may not change, but the interpretation and enforcement often do.

Lastly, some other factors are also impact, strikes, rioting broke out, food stuffs were seized from private companies. 

Wednesday, December 18, 2013

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.

Tuesday, December 17, 2013

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.

Monday, December 16, 2013

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.

Plastic mesh bags

  Plastic Mesh Bag is a very common packaging solution which is widely used in the packaging and transportation of vegetables and fruits,esp...