Yield strength of stretch film
Film mirror protector mirror protector TB40 TB50 mirror protector mirrors TB60 protector Mirror Mirror TB100 Oracal film processing imitates peskostrynuyu Double sided tape double-sided tape for mirrors Round acrylic adhesive DuploCOLL CPT. Adhesive tape on the basis of acrylate Shop stickers Chemistry Liquid Glass cutting glass matting paste packing plastic adhesive tape Scotch Packing Stretch kevlar rope Film narrow stretch film
In our time, the packaging market is quite diverse. Fight for his place and manufacturers of stretch film. An important role here takes the value of the material, so some manufacturers have decided to increase the number of layers of stretch film, to make their products more competitive. Transition from five to seven layers, or may increase to nine cost reduction, increased productivity and reduced costs. Performance stretch film is increased by two, every 5 years. In the interval from 1985 to 1991, consumption grew Stretch with 240 million kevlar rope pounds to 510 million a year, and already in 1991 and until 1996 the demand has increased by more than 900 million pounds per year. Only about five years ago stretch of five layers won the packaging market, and still demand kevlar rope for these products is constantly increasing. Only in the last two years, the demand for packaging stretch film stopped almost half a billion pounds, as a percentage of 65-70% for the Stretch machine, and 30-35% stretch for the packing hands.
Rivalry in the mainstream market for stretch film relentlessly growing. Producers' profits decrease, and the rate of appearance of new manufacturers halved. In this market began to survive only those players kevlar rope who are constantly renovating equipment and strive to produce stretch kevlar rope film which will have increased the number of layers. kevlar rope When in the 90s there was a film in which five layers, it replaced the one and three-layer stretch film, which was made from hexene or octene LL DPE. To make this possible it took about four extruders fifth feedblocks also permitted cheaper butene LL DPE which strengthens thin layers supporting metallocene LL DPE. The usual five-layer structure should look like this A-B-C-D-A with 10% hexene LL DPE as a surface layer - A, 20% m LLDPE surface layer B, and 40% of basal butene LL DPE as the core of stretch film, C - sloya.Oborudovaniya for the manufacture of stretch film appeared greater, respectively, and the possibility kevlar rope of this equipment kevlar rope grew with the increase in the number of layers. Nowadays stretch with five layers is 40% of the total issued kevlar rope stretch film, made in the USA, and the consumption of metallocene resins increased from 0 to 12%. But the surface layer that runs from m LLDPE is relatively expensive, so the producers decided to produce stretch film with seven and nine layers, with the aim to increase the proportion of use of butene LL DPE and reduce the proportion of the use of expensive m LL DPE, primarily by improving the quality of the film and . Making films claim seven layers that increase the number of layers kevlar rope leads to the possibility of reducing the film thickness, without loss of strength properties. Over the past few years, the United States, all the lines of monolayer kevlar rope films have been upgraded to five-layer, but this is not the limit. Were installed machines that produce seven and nine layers, respectively. But now manufacturers are thinking on the production of d 11 and 14-layer films. As stated by a senior kevlar rope scientist Cloeren Gary Oliver, they are willing to do the layers with a thickness of up to one angstrom [1 micron = 0.0001 Å] or to the nearest tenth of a percent of the thickness of the entire film. Manufacturers interested in this invention, but still no one ventured to experience the latest technology in their work.
Multilayer films most effectively used in the manufacture of machine Stretch. Film for packaging hands has only one or three layers, mixing kevlar rope hexene / octene LL DPE with more expensive adhesive additions that do not apply to the manufacture of molded polyethylene stretch films. Manufacture of stretch film with increased layers, not very different from the usual manufacturing stretchevoy film. The difference is that the additional layers are produced by means of a feedblock division one jet resin thin layers that are put together or alternating kevlar rope with layers of a second jet resin. This technique is widely used in producing sheet, in order to obtain a more equal distribution of the resin. "Coextrusion kevlar rope thin repeating layers should improve resistance to tearing," said Oliver Clore. "Ekstryuding metallocene resins smaller thickness basically kevlar rope makes them not the same
Film mirror protector mirror protector TB40 TB50 mirror protector mirrors TB60 protector Mirror Mirror TB100 Oracal film processing imitates peskostrynuyu Double sided tape double-sided tape for mirrors Round acrylic adhesive DuploCOLL CPT. Adhesive tape on the basis of acrylate Shop stickers Chemistry Liquid Glass cutting glass matting paste packing plastic adhesive tape Scotch Packing Stretch kevlar rope Film narrow stretch film
In our time, the packaging market is quite diverse. Fight for his place and manufacturers of stretch film. An important role here takes the value of the material, so some manufacturers have decided to increase the number of layers of stretch film, to make their products more competitive. Transition from five to seven layers, or may increase to nine cost reduction, increased productivity and reduced costs. Performance stretch film is increased by two, every 5 years. In the interval from 1985 to 1991, consumption grew Stretch with 240 million kevlar rope pounds to 510 million a year, and already in 1991 and until 1996 the demand has increased by more than 900 million pounds per year. Only about five years ago stretch of five layers won the packaging market, and still demand kevlar rope for these products is constantly increasing. Only in the last two years, the demand for packaging stretch film stopped almost half a billion pounds, as a percentage of 65-70% for the Stretch machine, and 30-35% stretch for the packing hands.
Rivalry in the mainstream market for stretch film relentlessly growing. Producers' profits decrease, and the rate of appearance of new manufacturers halved. In this market began to survive only those players kevlar rope who are constantly renovating equipment and strive to produce stretch kevlar rope film which will have increased the number of layers. kevlar rope When in the 90s there was a film in which five layers, it replaced the one and three-layer stretch film, which was made from hexene or octene LL DPE. To make this possible it took about four extruders fifth feedblocks also permitted cheaper butene LL DPE which strengthens thin layers supporting metallocene LL DPE. The usual five-layer structure should look like this A-B-C-D-A with 10% hexene LL DPE as a surface layer - A, 20% m LLDPE surface layer B, and 40% of basal butene LL DPE as the core of stretch film, C - sloya.Oborudovaniya for the manufacture of stretch film appeared greater, respectively, and the possibility kevlar rope of this equipment kevlar rope grew with the increase in the number of layers. Nowadays stretch with five layers is 40% of the total issued kevlar rope stretch film, made in the USA, and the consumption of metallocene resins increased from 0 to 12%. But the surface layer that runs from m LLDPE is relatively expensive, so the producers decided to produce stretch film with seven and nine layers, with the aim to increase the proportion of use of butene LL DPE and reduce the proportion of the use of expensive m LL DPE, primarily by improving the quality of the film and . Making films claim seven layers that increase the number of layers kevlar rope leads to the possibility of reducing the film thickness, without loss of strength properties. Over the past few years, the United States, all the lines of monolayer kevlar rope films have been upgraded to five-layer, but this is not the limit. Were installed machines that produce seven and nine layers, respectively. But now manufacturers are thinking on the production of d 11 and 14-layer films. As stated by a senior kevlar rope scientist Cloeren Gary Oliver, they are willing to do the layers with a thickness of up to one angstrom [1 micron = 0.0001 Å] or to the nearest tenth of a percent of the thickness of the entire film. Manufacturers interested in this invention, but still no one ventured to experience the latest technology in their work.
Multilayer films most effectively used in the manufacture of machine Stretch. Film for packaging hands has only one or three layers, mixing kevlar rope hexene / octene LL DPE with more expensive adhesive additions that do not apply to the manufacture of molded polyethylene stretch films. Manufacture of stretch film with increased layers, not very different from the usual manufacturing stretchevoy film. The difference is that the additional layers are produced by means of a feedblock division one jet resin thin layers that are put together or alternating kevlar rope with layers of a second jet resin. This technique is widely used in producing sheet, in order to obtain a more equal distribution of the resin. "Coextrusion kevlar rope thin repeating layers should improve resistance to tearing," said Oliver Clore. "Ekstryuding metallocene resins smaller thickness basically kevlar rope makes them not the same
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