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Raw materials (polypropylene) and plastic wire drawing machine (PP, PE raw materials made of silk thread) - winding machine (pulled out of the silk thread winding) and circular loom (the winding wire woven plastic braided tube cloth) and composite machine (OPP, paper and other composite materials) - printing machine (print and pattern, etc.) - cutting machine put bags bags (plastic woven bag cylinder cloth into strips) - sewing machine (sewing at the bottom) - packing machine (the shape of the bag packed bales) to the factory, waste recycling, crusher, crushing waste) waste (drying), the dryer, drying good raw materials in the wire drawing machine to use.

Plastic bags, plastic bags have become an indispensable item in people's production and living, the plastic bag, PVC bag, compound bag, vacuum bag, PVC bag, plastic film, etc. Various kinds of commonly used plastic products market demand is big, so the production is also very big, in the production of plastic packaging bags, plastic will generally choose which commonly used material? Therefore the shandong jinan heng auspicious plastic bag factory will introduces for everybody. First, polyethylene plastic bags, plastic products dosage the biggest, the most important materials, is currently the world's most ideal material of contact food bag, food packaging bags on the market in general are all made of the material. Polyethylene light transparent, with the ideal moisture, oxygen resistance, acid and alkali resistance, heat sealing and other advantages, and non-toxic, tasteless, odourless, food packaging hygiene standards. Second, PVC/PVC, is currently the second largest in the world, second only to polyethylene plastic varieties, is a plastic bag, PVC bag, compound bag, vacuum bag ideal choice, can also be used in books, folders, documents such as cover packaging decoration, etc. Third, low density polyethylene is dosage in plastic packaging and printing industry from all over the world's largest varieties, apply to blow molding processing into tubular membrane, suitable for food packaging, cosmetic packaging, fiber products packaging etc. Boiled fourth, high density polyethylene, heat resistance, cold resistance to freezing, moistureproof, prevent gas, isolation performance is good, and not easily damaged, strength of low density polyethylene 2 times, is a commonly used material of plastic bags. Fifth, two-way stretch polypropylene film, its mechanical strength, the strength of folded, air tightness, moisture barrier property is superior to common plastic film, due to the transparent plastic film is wonderful, post-press reproduce exceptionally bright beautiful colour, is an important material of plastic composite flexible packaging. Sixth, shrink film and plastic bags commonly used base material, in use process by hot air handling or infrared irradiation will shrink, tightly wrap on the packing materials after heat treatment, contraction force peaked in the cooling phase, and can be long-term preservation. Above is a plastic bag, plastic bag, compound bag, vacuum bags and other plastic products commonly used material, with the development of technology and progress, more environmental protection, green environmental protection plastic bags, plastic products will become the future direction and trend of development.

According to the staff of the plastic bag manufacturers, according to their different characteristics and production materials, plastic bags can be divided into PE bag, PVC bag, OPP bag, now to for each of these kinds of plastic bags do a simple introduction. PE plastic bags PE material is called a polyethylene bag, it has good chemical stability, application is very extensive. PE bag can be divided into two kinds of high density and low density. High density high cost, the price is more expensive, and more good performance. The transparency of low density is that we often see poor products. The supermarket a better quality of paid use of plastic bags commonly used high density PE bag. PVC plastic bags PVC bag is one of the plastic bags in common, is to use made of PVC film, has good flexibility and high transparency, is widely applied in the field of bag making, many enterprises choose to use PVC bag to improve product quality. OPP bags OPP bag of material is also called directional polypropylene, high transparency, quality is crisp, the OPP monolithic folded after lateral sealing side and in mouth tongue stick adhesive stickers, facilitate packing is used, in the clothing, food, stationery paper products such as packaging has extensive use. Also can according to need I couldn't get through the shape of the hole and the pattern printing impassability. Of course, the family of plastic bags is very large, in addition to the above introduced several other kinds.

Shenzhen market plastic bag manufacturers comply with national requirements for the development of the plastic bag production rectification, but there are still some small plastic bag manufacturers for their own interests of producing toxic plastic bags, endangering public health. Although plastic bags brought great convenience to our life, but not qualified plastic bags will also bring certain threat to our health, in the face of all kinds of plastic bags on the market, consumers how to identify qualified plastic bags? First of all, the color touch touch. General qualified plastic bag is white and smooth to the touch, will not produce contamination of particles, the biggest characteristics is the expression of many plastic bags is unqualified, the most common is red, black, green, blue, such as plastic bags, plastic bags on the production process of no through the strict disinfection processing, this is the dirty plastic bags to hide itself has color, and the touch can have the feeling of sasha vujacic, so don't use the plastic bags. Second, the smell. Qualified through the strict disinfection processing, plastic bag won't be a pungent bad smell, but unqualified plastic bags are different, can have a bad smell, acrid smelling a little feeling, like plastic bags will poison radiation into our food, harm to our health. Finally, listen to the sound, after strict production process, the qualified plastic bags have a dull stiff, and the voice of the unqualified plastic bag is usually clear, and so on the easiest way is to choose plastic bags plastic wind, listen to the blunt, to distinguish the true and false of plastic bags. Only in daily life to learn simple true and false plastic bags to distinguish method, to ensure that our health is not threatened by unqualified plastic bags.

Self-reliance bag packaging is mainly used in the fruit juice drinks, sports drinks, bottled water, can suck jelly, spices and other products, in addition to the food industry, some washing supplies, daily cosmetics, use of medical supplies and other products is also gradually increasing. Self-supporting bag packing for the rich and colorful world add appearance and colour, clear and bright patterns, upright on the shelves, reflects the excellent brand image, are more likely to attract consumer attention, have adapted themselves to the modern supermarket sales trend. Customer once after use, can be aware of the beauty, favored by the majority of consumers. As self-reliance bag packaging advantages by more consumers know, with the increasing of social environmental awareness, replace bottle with self-reliance bag packaging, bucket packaging, traditional alternative not sealing flexible packaging, will become the trend. Follow the self-reliance bag packaging promotion trend, introduced a self-supporting bag filling screw cover packaging machine, its main performance indicator and close to international level. This kind of equipment working process including: automatic bag, vacuum filling, automatic positioning, automatic cover, set of cover, screw cap, automatic bag, liquid level control, etc. The whole process of automatic control, can also be done in purifying indoor, can also be equipped with air purification system, PLC man-machine interface control system, connected with CIP cleaning system. Due to self-reliance bag packaging good market effect, and self-reliance bag packaging products emerge in endlessly, committed to the research and development production enterprise more and more of this filling machine. Companies mainly rely on their own experience, in the absorption on the basis of introduction of foreign advanced technology, according to the characteristics of domestic research and development of independent innovation, make the products with special features and occupy a certain market share. The perfect standard system helps to improve the level of product quality and product class, standardize market order. But, at present the self-supporting bag filling screw cover packing machine there is no perfect country or industry standards of products. According to the standard system revision plan, formulated by the national packaging machinery standardization technical committee is responsible for organizing the self-supporting bag filling screw cap packaging machine industry standards. This standard has been released in China's packaging standard network industry surveys, relevant enterprises can login website to put forward proposals and Suggestions for the establishment of standards, promote to develop to meet the requirements of industry development, and guide the healthy development of the industry industry standards. We are looking forward to self-supporting bag filling screw cover packaging machine standard come on stage, speed up the implementation of this kind of equipment seriation, standardization, generalization, make its rapid development on the basis of sound strong.

With the development of various take-out software, now a lot of order has become a popular, this way is really convenient for life, save the time. But, have you ever found that different vendors plastic bag is also a variety of food, so how to distinguish between food plastic bags and plastic bags? A lot of time to eat from the street, some snack to the bother of clean disinfection bowls, plastic bags will be directly set of food in the bowl. Every morning lots of people will be on the road to buy a steamed stuffed bun, rice noodles, or pancake fruit, walking and eating, it can also be simple to eat some breakfast on the side of the road, they generally need plastic bag, but must distinguish between whether food bags, if not the best, otherwise, every day, it is easy to give the body health. Currently used in food packaging plastic polyethylene, polypropylene, polyester, polystyrene, etc., its performance is qualified, plastic packaging is safe for food. Plastic food packaging can be at ease use, but don't use a colored plastic bags of food. Consumers can't distinguish between food and non-food plastic bags, so there are quite a number of unqualified plastic packing was used in food packaging, which cause serious damage to people's health. That our consumers can do is informal manufacturers, in the street stalls selling plastic bags don't used in food packaging. In addition, the plastic bags if have special smell, also can not used for food. Before using bags of food, you must take a closer look at whether the plastic bag's material is faulty, feel is rough. This plastic bags may be composed of waste plastics processing, easy to endanger human body health. The use of plastic bags really brought great convenience to our daily life, but in terms of food, or try to use less plastic bags, plastic bags, if at all, also be sure to use a special food in a plastic bag.

Abstract: according to foreign media reports, made of how a non-oil plastic can also achieve the goal of recyclable and biodegradable? Chemists have found such a polymer, it can be synthesized a kind of useful material and then broken down into its original structure form and then reborn. Although some plastics can be recycled through continuous accumulation and was made into useful items, but most of them are to landfills or the oceans. Although the plastic such as PLA can be under the environment of certain degradation, but they also have some disadvantages. Although recycling material may be extended as a method of life cycle, but it can't in the case of does not produce harmful substances other molecules to break it down to return to its original state. In order to find out to full recovery and degradation of plastic, of the university of Colorado (CSU), the researchers will look to Molecule compounds extracted from biomass. The U.S. department of energy will have this kind of material as 12 is most suited to replace one of the items of petrochemical products. Early in the scientific literature has butyrolactone (GBL) the molecule is defined as a kind of very promising advanced plastic building materials. However, due to this kind of material with thermal stability, so it can't happen polymerization. So, professor of chemistry at the CSU Eugene Chen and colleagues Miao Hong postdoctoral research cooperation, finally they found a production process, it can not only use GBL generated polymers, but also can make the polymer to form different shapes, such as linear and circular. Involves both of metal catalyst and nonmetal catalyst, researchers will be heated to 220 degrees Celsius (for linear polymer) or 300 degrees Celsius (for cyclic polymers) and last an hour and then let the GBL back to the original state of molecules. The research team, said on the chemical properties of it, GBL like commercial biological plastic P4HB, but because the latter is based on the bacteria production, so its cost is higher, the craft is also more complex. Team hope that their research can bring the industry a lower cost and simpler technique recyclable, biodegradable plastics.

OPP bag is the stretchability of polypropylene, is a kind of plastic, is plastic bags, whose character is: easy to burn. Under the situation of flame: movement of molten drop, yellow blue, away from the fire and smoke less, continue to burn. OPP (Oriented polypropylene) : Oriented polypropylene (film), is one of the types of polypropylene and two-way polypropylene (BOPP) O (Oriented) : should mainly refers to the production process. PP (polypropylene), polypropylene, but as a general structure parts, corrosion-resistant chemical equipment spare parts, electric heating insulation Has such characters as high transparency, brittle, by OPP monolithic folded after lateral sealing side and in mouth tongue stick adhesive stickers, when used in products to tear to protect the skin on the surface of the seal with the tongue folded after cement can, use convenient, beautiful generous, widely used in clothing, food, printing, stationery, cosmetics, paper and other industries. You can print all sorts of design according to customer needs and the butterfly hole, hole plane. OPP bag has distinct advantages: A, sealing is good. Experimental data show that the new type sealing OPP bag is more than double its traditional bag, so that the moisture of their products, preservation sex is stronger, last longer; Second, the security. New bag used synthetic technology and special printing technology has the very high technological content, only Germany and Japan, two countries master the technology, counterfeit production, anti-counterfeiting provides strong guarantee for goods; Three, the new OPP bag of the raw materials for biodegradable materials, used in full compliance with international environmental protection standards. PE is short for polyethylene, ethylene polymerization of a thermoplastic resin. In industry, including ethylene and small amounts of alpha olefin copolymer. Polyethylene odourless, non-toxic, feel like wax, has good low temperature resistance (the lowest temperature can reach 70 ~ 100 ℃), chemical stability is good, most of acid and alkali erosion (acid) with characteristics of oxidation resistance, temperature does not dissolve in solvents, small water imbibition, excellent electrical insulation properties; But polyethylene for environmental stress (chemical and mechanical effect) is very sensitive, heat aging. The properties of polyethylene owing to the different varieties, mainly depends on the molecular structure and density of different production methods can get different density (0.91 ~ 0.96 g/cm3) of the product. Polyethylene available general thermoplastic plastic molding method (see plastic machining). PE cling film of material also can be called PE bag, pay attention to the plastic wrap of direct contact with food must choose PE material (the other is PVC), safe to human body. Discrimination method, the transparency of PVC cling film, stretchability, and viscosity is better than PE cling film. Black PVC cling film in the fire, fire, smoke, a pungent odor, does not drip, left after the fire will automatically go out. And PE cling film combustion flame yellow, odorless, will drip, and left after the fire could continue to burn.