The development and replacement of plastic packaging materials
The development and replacement of plastic packaging materials
Invented the first form of synthesis - celluloid plastic bags, plastic packaging has 100 years of history, the 20th century, the development of science and technology changes with each passing day, new materials, new technologies appear constantly, polyethylene, paper, glass, aluminum foil, all kinds of plastic, composite materials such as packaging materials are widely used, aseptic packing, shockproof packaging, security, insurance, packing, combination, composite packaging technology matures, in many ways to strengthen the function of packaging.
In the container packaging market, plastic bottles come and go, beating the market of glass bottles for years. This has to do with many of the advantages of plastic bottles. However, the market always pushes the wave forward, constantly pushing the new. Now some new packaging containers package, plastic vertical bags and other new packaging forms and materials appear, all hope to replace the plastic bottle packaging market share by their advantages.
One of the big reasons plastic bottles are able to squeeze glass bottles is that they are cheaper to pack. The low cost of plastic bottles makes a lot of food, beverage, medicine, cosmetic manufacturers adopt this new form of packaging. However, the packaging cost of vertical plastic bags is lower than that. Plastic bottles must use other advantages to compensate for this lack of advantage. This is the appearance of the more changeable, more rich texture, this is the vertical bag shuttle cannot solve.
Are plastic materials safe?
As plasticizer, bisphenol A (BPA), the occurrence of harm to human body health, such as news, make people have A negative impression about plastic packaging, plus some undesirable businessman to reduce cost, regardless of the material's health, is exacerbated by the negative image of plastic materials.
Recently, the British plastics federation (BPF) responded: "plastic packaging is safe", strive to plastic packaging is said, the association of BPF PhilipLaw director-general, said the guardian cited an article about warning exposed to long-term damage of synthetic materials and urged further study academic papers. This is alarmist and has not been consulted about the industry's views. Many chemicals are labeled as "synthetic materials", regardless of their own characteristics. Oddly, the article did not mention that this week the European commission completed two reviews of phthalates, which concluded that it posed no risk to consumers.
In fact, plastic for food packaging has a whole set of eu and national regulations, including strict eu regulations and very detailed REACH regulations for the plastic materials that are exposed to food. And both the European food safety agency and the British food standards agency will monitor this.
In the past 50 years, the development of plastic packaging and other forms of packaging technology has greatly promoted the great progress in food hygiene. We were a long way from the old corner shops that had to keep the flies away from exposed butter packets. It is not surprising that perishable food causes a worrying fatality rate before durable and sealed packaging.
The plastic used to wrap food is usually the same as the materials used for health care, including artificial organs that are closely connected with human tissues. Plastics are often recommended by public organizations as the preferred material for such use.
BPF finally points out that plastic packaging is not only safe, but also contributes significantly to public health.
Biodegradable polymer can be a new choice for packaging materials
The emergence of biodegradable materials, and other packaging materials have a new choice, the personage inside course of study points out, packaging film for food, pharmaceutical and personal care products quality and storage life will have a significant impact. PHBOTTLE r&d team successfully developed a biological polymer beverage bottles or food packaging materials, at present, the biodegradable polymer is perfect in the world of beverage and food packaging materials.
PHBOTTLE r&d team successfully develop biopolymers beverage bottles or food packaging materials have been inspected after repeated, include drinks and food packing new material during the period of storage stability, safety and quality. Previously, the European PHBOTTLE r&d team to fruit juice beverage processing after the discharge of waste water as raw material, produce cheap and up to the standard of eu green biodegradable plastic PHB, which can be widely used in fruit juice beverage packaging.
It is reported that in the waste water discharged after the juice beverage processing, rich in more than 70% can fermentable sugars, such as glucose, fructose and maltose sugar. PHBOTTLE r&d team has been using the fermentation of sugar in the wastewater, successfully developed the biopolymers beverage bottles and food packaging materials, mechanical strength, easy to scale processing and superior properties such as resistance to water.
At present, biodegradable polymers can be divided into two categories: natural and synthetic. Natural biodegradable polymers including starch, cellulose and chitosan, chitin, chitosan and its derivatives, such as synthesis of biodegradable polymer divided into two categories: artificial and synthetic bacteria, bacterial synthesis of biodegradable polymers, including poly hydroxy alkyl alcohol ester (PHAs), poly (malic acid ester), synthetic biodegradable polymers including poly hydroxy acid esters, poly (caprolactone (PCLS), poly (cyanoacrylate (PACA), etc.
Along with our country economy and society to further improve the level of consumption, the demand of people to drink also constantly increased, and toward a higher level of development, in such form, each manufacturer are pulled out all the stops in all aspects of the product. Especially now that people are becoming more and more emphasis on the product packaging, packaging of safety and environmental protection has become increasingly clear goals, so how to launch environmental pollution-free green beverage packaging has become China's beverage companies began to focus on the research of new topic.
This is especially true in eu countries. The beverage and food packaging material industry is one of the most obvious waste of energy and resources industries, annual demand for production of 67 million tons of packaging materials, energy resources, most of the packaging materials pose serious threat to the ecological environment. In the waste water from the modern juice drinks industry, high proportion of the fermented sugars, such as glucose, fructose and maltose, can be fermented. It is an ideal and cheap biodegradable polymer (PHB) raw material resources.
