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Composite packaging material selection

The size of the decision not only by the strength of the material, but also with the packaging of the volume / area ratio of the relevant, and thus affect the packaging of the gas, water vapor transmission 5. Packaging structure. Sorrowful easy-open device, such as whether there is related to the packaging level of protection given to the overall functional requirements and easy to open the properties of the films. For example, the use of a large tear strength of the packaging film, no longer constitutes a design by this film to be made with the easy tear open packaging. 6. What types of decoration printing. Competitive products in the market everywhere, the ingenuity of the original print decorating a large role in promoting sales blessed. This requires materials with printability. Printability of various materials are listed in the table. It is noteworthy that the foil can be printed front and back of different effects: the positive gloss reflective print and flash availability of printing I get the opposite of dull satin-like appearance. Packaging machinery and equipment requirements of various materials on the adaptability of machinery and equipment is in the choice of film must be taken into account. Down, such as, paper Mino required performance and sets appropriate for the material properties of materials 1. Opaque aluminum foil, paper, printing the plastic film base 2. Through the chewing of cellophane, LDPEOPP, pET, and most other plastic film 3. Water vapor barrier aluminum foil, PVDC, MST, HDPE,[link widoczny dla zalogowanych], PP,[link widoczny dla zalogowanych], LDPE {. Gas (oxygen) barrier of aluminum foil,[link widoczny dla zalogowanych], pVDC, pET, UPVC, NY, cellophane 5. Temperature of aluminum foil, NY, PET, HDPE, PP, paper 6. Low temperature of aluminum foil, paper, LDPE, HDPE,[link widoczny dla zalogowanych], ION, EVA, PVC, PET, NY, OPP, pVDC7 grease resistance aluminum foil, cellophane, NY, EVA, HDPE, PP, PET, CA,[link widoczny dla zalogowanych], PVC, pVDE, ION, greaseproof paper 8. Sealing units of LDPE, ION, EVA, NY, pVC (high heat sealing), HDPE, CPP, PVDC9. Printability of paper, aluminum foil, cellophane. PC, PET, CA, NY, after surface treatment 1ON, EVA, PP, PE special ink: PVC, PS60/i994Vo1.14No. 2CHINAPACKAGING kink is the production of cellophane packaging and the best materials. Most plastic films have greater flexibility restorative. Kink packaging machine which does not apply to aluminum foil has excellent barrier properties and permanent collapse, but easy to wrinkle and crack. In order to adapt to mechanical operations. Available polyethylene or aluminum foil composite paper and plastic film at all. Poly film is suitable for the machinery spiritus best material for the vertical operation of forming a seal 【= 『filling packaging machine, packaging material must have good sliding, otherwise. Feeding tube in the packaging film and the friction between the film would break Stickiness can be added to the eight smooth polyethylene film filled additives to adapt to this type of packaging machinery In addition, vertical packaging machine also requires a larger film melt strength. Timely because in the heat sealing, sealing in the molten state, filling the product bag packaging machine to be hanging in the low-density polyethylene hexene is a good melt strength of the material. If the polyethylene is laminated with other substrate, and must use the clock; towel sets to replace the original folder sealing sealing rollers. Vertical filling packaging machine for thin-film material should have sufficient flexibility. A very small operation so as to withstand the bending angle without cracks. Tai-cloth paper, cellophane, low-density polyethylene and laminated materials can meet this requirement, with aluminum foil composite material, solid good flexibility, suitable for use vertical packaging machine. In the horizontal shape - Fill - Sealing machine, the sliding characteristics of the film less demanding but still requires a large melt strength properties. In the horizontal packaging machine, not too sharp corner, can use aluminum foil for composite materials. Economic cost factors influence the choice of packaging materials prices are an important factor. All of the logistics process, ... the cost of a package is dig into the following types of costs:】. Packaging costs} 2. Semi-finished bags or other containers for the storage and management costs 3. Filling costs; 4. Product packaging, storage management costs; 5. Transportation costs; 6. Premium I7. Losses caused by rupture of solid packing. Elements in the various items of weeks, packaging materials and processing costs in its accounting for a small percentage of the circulation field. Therefore, in the choice of packaging materials, should not only material prices the contrary, a reassuring packaging materials, can reduce the harsh environment brought about by solid losses, you can save storage and management costs. In addition, the choice of materials, price should be the square of film accounting that takes into account the proportion of the material. In the same thickness and weight, the smaller the proportion of larger material. From an economic point of view of cost, the smaller the proportion of material, although slightly more expensive price, with good performance, is still possible to obtain good results.

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