HiTech Provide Best Plain films-semi embossed films-Stretch wrap films-LDPE semiembossed film in Reasonable price

Hi-Tech Packaging is a Leading manufactures which provide high quality,good strength and performance oriented packaging materials such as LD semi embossed films and Plain films,LD cover, Poly Shrink Ribbed Film ,Poly Embossed Film, Dairy & Water Packaging Film,Flexo printing bags,plain and colour covers,Our products are available in different thickness, lengths,types and colours. Standard colours are Milky White, French Blue, Red, Yellow and natural.

Semi embossed Films

Hitech packaging provide high quality,good strength and performance oriented packaging materials such as  semi embossed films .It is used as a liner to the calendared rubber to retain the properties of rubber and also to prevent dust and other foreign matters from sticking to the rubber while calendaring and during storage. It is manufactured with 100% virgin Low Density Polyethylene.

Cpp Films

Hitech provides you the best CPP(Cast poly propylene film) Film. CPP film  has Packaging Machinery Applicability than Polyethylene Film, so in the field of packaging films occupy a certain position, CPP film after printing, bag, for food, stationery, groceries and Textile and other packaging materials can also be combined with other film after use, usually as a composite film of the inner and outer materials..

Best blister film

Blister films secure form pharmaceutical packaging . Hitech offers a high quality package that ensures a long shelf life protecting contents.

For more visits http://www.semiembossedfilm.com/

Best Embossed Film

By a special treatment of film, i.e. hot embossing of various shapes - a particular structure of surface is achieved. Such film is used mostly in rubber industry and also as protection of adhesive surfaces. Properties of these films enable air draining from the plastic material application. After the material hardening the film can be simply pulled off.

Release liners are necessary to separate single coated and double coated tapes and rubber. Release liners are usually comprised of glassine, paper or plastic which has been coated with clay or fluorosilicone. Embossed plastic film, also known as camelback or dimpled film, works by minimizing the amount of surface contact.

While siliconized coated papers are sophisticated and can be tailored with features such as differential release, they are expensive due to the complex manufacturing process. They are hydroscopic and can paper-based siliconized release papers exhibit buckling or cockling after exposure to high heat and humidity. There is no secondary use for them, so silicone coated release liners are destined for the landfill.

LDPE Surface Protection

It can protect the Stainless Steel not to be polluted, corrode, Sanmina, Laminate seat, and scratch during the process of producing, transporting and store. It also can protect the surface of the stainless steel existing bright and clean bright pool that an improve quality of the products and market competitiveness.

Stretch wrap films

Categories and sub-categories of stretch wrappers:

Manual (or Hand) Wrappers:

·         Extended Core: An extension of the film's core serves as a handle for wrapping; this type of wrapper offers little stretch control and is hard on hands.

·      Mechanical Brake: A simple structure supports a film roll and a mechanical brake system provides resistance creating stretch of the film.

·         Pole Wrappers: Similar to the Mechanical Brake system, but the roll and brake are at the end of an extended pole, creating an ergonomic design which eliminates the need to bend to wrap the bottoms of loads and strain to reach the tops of loads. Used for space missions too.

Semi-Automatic Wrappers:

·         Turntable Wrappers: The load to be wrapped sits on a turntable which spins the load relative to the film roll, which is housed in a carriage which can move up and down a fixed "mast". Stretch is achieved by rotating the load at a faster rate than the film is fed.

·         Orbital Wrappers: The film is housed in a carriage on a vertical ring, the load is fed horizontally through the eye of the rotating ring, applying film to the load. A variation of an orbital stretch wrapper is a horizontal ring system, in which the load remains still while a horizontal ring is rotated around the load and moves up and down vertically relative to the load, similar to a rotary arm stretch wrapper.

·        Rotary Arm Wrappers: In this system, the load remains still while a rotating arm turns around it wrapping the load. This system is used for light loads or for speeds which would otherwise cause the load to topple due to high rotation speeds.

Automatic Wrappers:

Automatic wrappers are generally a variant of a semi-automatic system. Automatic wrappers include a conveyor system to automatically load the wrapping machine and automatic systems to apply, seal, and cut the film.

·         Turntable Wrappers: The load to be wrapped sits on a turntable which spins the load relative to the film roll, which is housed in a carriage which can move up and down a fixed "mast". Stretch is achieved by rotating the load at a faster rate than the film is fed.

·        Rotary Arm Wrappers: In this system, the load remains still while a rotating arm turns around it wrapping the load. This system is used for light loads or for speeds which would otherwise cause the load to topple due to high rotation speeds.

·         Rotary Ring Wrappers: The film is housed in a carriage on an horizontal ring in which the load remains static while the horizontal ring is rotating around the load and moves up and down vertically relative to the load, similar to a rotary arm stretch wrapper. The rotary ring technology is really a more balanced system with less wear and maintenance than the other available wrapping technologies. These wrappers are capable to reach the highest production capacities (up to 160 pallets/hour).

Embossed Polyethylene Film

Polyethylene film is a resinous material with thermoplastic properties that is synthesized by inducing oxidation polymerization of ethylene gas. The degree of pressure used in its manufacturing varies according to the density and melting point of the virgin polymer resin being used. Most commonly, sheets of polyethylene film are produced using a process known as blown film extrusion, in which the polymer resin is melted to its flow point and then extruded through a die to produce a tube of plastic. While the polyethylene is still supple, the tube is closed off at one end and then blown to inflate and stretch the film into the desired length and thickness. The thickness of polyethylene film can be as thin as .0004 inch (10.16 microns).

The introduction of this film was considered groundbreaking in terms of its application in the packaging industry. Specifically, it has proven to be highly valuable in the flexible packaging market. In fact, it has captured the majority of the plastic packaging segment, which primarily consists of bags and wrapping material used for storage or to provide protection from the environment. This includes plastic wrap to protect agricultural crops, as well as ordinary kitchen wrap used to preserve food. Of course, polyethylene film is also essential in the manufacturing of bags, from dry cleaning protective covers to garbage and grocery bags.

Poly Shrink Film Manufacturing Process

Shrink packaging has been well established for over three decades. Due to it's practical and cost related advantages, it has found its use in many industries at various stages of packaging process.

Shrink Packaging can be divided into following groups:

a)Primary- where the product is totally enclosed for protection from abrasion, dust, moisture and for improved appeal.

b)Secondary- where a group of items is wrapped together to form a Sales unit, (Six-packs of Beer, Juice etc)

c)Distribution packaging-Where product is wrapped into a distribution unit which may stacked directly on the pallet ready for transportation. When walking through supermarket one only has to look on top of the shelves to see the extent of use of this packaging method.Most grocery and high volume beverage products will use cardboard trays for added rigidity of the pack. While the use tray is not always necessary, it does provide improved handling in automated warehouses.

Shrink Packaging Process

Shrink wrapping, bundle wrapping, etc, is a process during which a product item or a group of items in wrapped in a loose sleeve or envelope of plastic film, which upon application of heat shrinks and tightly conforms to the shape of enclosed contents. The key element of this process is Shrink Film.Shrink Film can be made from a variety of materials each having different strength, shrink characteristics transparency and lustre.

Polyvinylchloride (PVC), Polypropylene (PP) and Polyethylene (PE) are the three most commonly available materials.PVC, being one of the first materials used, is now being phased out due to its toxic properties, although still used abundantly in underdeveloped countries. Low Density Polyethylene (LDPE) is best suited for general packaging applications due to its relatively high strength and low cost.

Polyethylene Shrink film is manufactured in a vertical extrusion process where ethylene granules are heated under pressure to produce Polyethylene polymer.The polymer is forced upwards through a circular extrusion die to produce a very thin walled continuous tube of material, still in a semi-molten state as it emerges from the die. A controlled supply of air is fed up through the centre of the die to stretch the tube in the radial direction, thus forming a bubble. At the same time the tube is stretched in length by winding the film at a faster than it is extruded. As the film cools, the induced stretch is "memorized" in the film. Upon reheating the film, if unrestrained, will shrink a certain percentage in the width, referred to as % Shrink in TD (transverse direction), and in the length, % shrink in MD (machine direction).At the top end of the bubble the film tube is cool enough to be flattened and wound off as Lay-flat tubing, alternatively, it can be slit at one edge to produce Centre-folded material or slit at both edges to produce Flat sheet.

Poly shrink film manufacturers

Shrink wrap, also shrink film, is a material made up of polymer plastic film. When heat is applied, it shrinks tightly over whatever it is covering.Heat can be applied with a hand held heat gun (electric or gas) or the product and film can pass through a heat tunnel on a conveyor.The most commonly used shrink wrap is polyolefin. It is available in a variety of thicknesses, clarities, strengths and shrink ratios. The two primary films can be either crosslinked, or non crosslinked. Other shrink films include PVC and several other compositions.Coextrusions and laminations are available for specific mechanical and barrier properties for shrink wrapping food. For example, five layers might be configuration as EP/EVA/copolyester/EVA/EP, where EP is ethylene-propylene and EVA is ethylene-vinyl acetate copolymer.A shrink film can be made to shrink in one direction (unidirectional or mono-directional) or in both directions (bidirectional).

Films are stretched when they are warm to orient the molecules from their initial random pattern. Cooling the film sets the film's characteristics until it is reheated: this causes it to shrink back toward its initial dimensions.

Prior to orientation, the molecules of a sheet or tube are randomly intertwined like a bowl of spaghetti. The molecules are coiled and twisted and have no particular alignment. However when a draw force is imposed, the amorphous regions of the chains are straightened and aligned to the direction of orientation. By applying proper cooling, the molecules will be frozen in this state until sufficient heat energy is applied to allow the chains to shrink back. One can visualize this phenomenon by stretching a rubber band and dipping it into liquid nitrogen so as to freeze in the stretched state. The band will remain in this state as long as it is kept at sufficiently cold temperatures. However, when enough heat energy is applied, the rubber band will shrink back to its original relaxed state.