For many centuries, man sought to create something durable, easy and convenient for food packaging and other things. The appearance of polyethylene, and with him and cellophane, became a real breakthrough, which significantly improved the life of everyone, making it more convenient. In addition to the benefit, there are certain negative sides in the use of cellophane, but with proper and moderate use, this material is needed and useful for humanity.
What it is?
Cellofan is a material that is used as a packaging container for products and other products. Thanks to the transparent structure, it is possible to see the content, without revealing the pack. Cellofan looks rather dense, and if the integrity of the packaging is saved, it is extremely difficult to break it, but with any hole or cut, the package or package will not stand.
Cellophane production began in 1912, it was actively used until the creation of polyethylene. The new material was more promising and convenient in everyday life, so the cellophane began to refuse.
Now almost do not produce packages from this material, but they actively use it to wrapping the candle boxes, cheeses, sausages and other goods that are needed dense, but transparent packaging.
Due to the popularity of polyethylene, a problem arose with the pollution of the planet, since packages and other polyethylene products are extremely decomposed, creating huge garbage dumps throughout the planet. The issue of environmental protection has got up very acutely, so many countries have limited the use of this product, and many began to restore the production of cellophane packages. Due to the composition of the decomposition of cellophane several times less than any polyethylene product, which makes it possible to reduce environmental pollution.
Cellophane characteristics make it possible to understand what it makes it more versatile and convenient to everyday life. One of the problems faced in the package disposal process is their combustibility. Polyethylene packages are quickly burning, which causes the risk of fire, while the melting point of cellophane is much higher, and the material is only deformed by the fire.
Cellofan misses moisture and air, and polyethylene products have a greater density and hermetically closes the contents. Cellofan thickness is greater, and if it is squeezed, you can hear the characteristic noise and rustle, while the plastic bag does not rustle.
Since the sphere of use of cellophane may differ, there is a marking that you can find the desired product with certain indicators. Technical cellophane is usually solid, food – softer, on sale you can find products transparent and black.
The material is not dangerous, and it will go to decomposition much less years than the polyethylene analogue.
History of origin
The creation of Celofan was the situation that in the distant 1900 happened to the Swiss scientist and technologist of textile products. Jacques Brandenberger, visited the restaurant, saw the wine on the tableclot, and the waiter had to replace the canvas from the table. As a textile specialist, Brandenberger decided to create such a material that would not miss moisture and repelled it. All his attempts turned out to be vain, but it turned out to create a transparent film, which could be placed on top of the fabric.
Success allowed Brandenbergeru by 1912 to create an apparatus that produced a transparent film in large quantities. The new product, the scientist called “Cellofan” using the word “cellulose” and “transparent”. Production went successfully, and a year later, Brandenberger opened another factory in Paris, and by 1923 the scientist concluded a contract with the Americans, and its products spread to the United States.
Despite the great success, Celofana Brandenberger had a significant drawback: he missed moisture. In 1927, American William Charch came up with how to eliminate this problem. He added to the production of film processing of raw materials nitrocellulose.
With the advent of moistureproof cellophane, it became possible to use it for packaging food, which has repeatedly extended the shelf life of products. The popularity of cellophane products grew very quickly and won all new continents and countries. In Russia, the active use of cellophane began in the 70s, when the new material began to be actively used in different spheres.
The emergence of new materials gave impetus to the development of this direction, and soon the polyethylene appeared, which was at times more popular and used and so.
The cellophane film is a product needed in different areas, therefore its popularity remains steadily high. Quality control at enterprises is carried out in accordance with GOST 7730-89 for cellophane. Due to the different scope of application, it is possible to distinguish the types of material used for the package:
- food products;
- sausage and cheese products;
- candy boxes;
- perfume products;
- Christmas tree toys.
Depending on the purpose of using cellophane, it may have a different density: from 30 to 45 g / m². There are 2 main varieties of this material: this is a titer 1 with a density of 33 g / m² and titer 2, the density of which is 45 g / m². To purchase a product for packaging food, you need to look for cellophane in rolls with marking “P”. For medical and technical purposes on the package will be indicated by the letter “T”.
In addition to the density, there is an opportunity to choose Cherulofan by width. The smallest rolls have 15 cm in width, and the most dimensions reach 1m 20 cm. In production can be winding rolls under the order or produce standard packaging.
If we consider other packaging options, the cellophan exceeds analogs of the decomposition speed: Any cellophane products are fully disintegrated over several years, while plastic analogs pass the same way for 300 years. This fact is confirmed by multiple studies, cellophane complies with the European standard of biodegradation of packaging materials EN 13432.
In addition to rolls, you can find cellophane in sheets.
What is different from polyethylene?
Faced daily with cellophane and polyethylene packages and other products from these materials, it is difficult to believe that such similar products are fundamentally different. The difference between them begins with the fact that the cellophane is created from natural components, and polyethylene from artificial. To more accurately understand the differences of these materials, it is worth dealing with them more Detail.
Raw materials for receiving – cellulose, which makes the product biodegradable and harmless to nature.
Created with the help of chemical synthesis of gaseous hydrocarbon ethylene.
In view of its composition, this material has a sweet taste.
There is no taste.
The ability to draw paint and drawings that keep very long and not erased.
Short-term saving any drawing.
Cellophane packages are hard, rustled when touching, have a smooth surface.
Polyethylene bags are soft, easily impenetrate, may have an inhomogeneous surface, a little fatty to the touch.
With any damage, the material is very easy to break, it is not resistant to damage.
Well withstands great weight, with difficulty denies deformation;
Cellofan products can be glued, but they are not amenable to thermal processing.
Polyethylene products will not succeed, but damage can be eliminated using heat welding.
Two so similar externally, but so different according to the characteristics of the material are performed by various tasks, so there is a place in the market for goods and services. The popularity of polyethylene is higher, since the cost of its production is significantly less, and the cost of one bag will be much cheaper than cellophane.
In addition to the indicated differences, it is worth saying that the cellophane surface passes moisture and air, while the polyethylene products are completely hermetic. Another important point is resistance to open fire.
If polyethylene instantly lights up, which can cause a fire, then cellophane begins to melt and shrink, which is significantly safer.
Methods of application
Due to its properties, the air and moisture of Cellofan found the application in the production of wrappers for cheese and sausages. It is such a packaging that allows the product to “breathe”, which does not give him the abyss, and at the same time significantly extends the shelf life of the goods. The use of cellophane for packing bread makes it possible to keep it fresh up to 5 days, which was previously impossible.
Excellent properties This material has shown in the confectionery sphere. Packaging of sweets, bars, packaged sweet products – all this looks neat and has a pleasant view of bright drawings on the surface. Cellofan reliably saves the contents.
The material is also used in protective and decorative purposes, covering boxes of any size. It holds the contents inside, prevents stomaching a cardboard or other surface, while maintaining an attractive appearance. Transparent film makes it possible to consider the subject of interest on all sides, without printing it. Color film transforms any gift, scissors and making a real surprise from any item.
Comparison of polyethylene and cellular in the video below.