What are the main categories of packing belts?

Strapping is also known as strapping. The packing belt (strapping belt) for packaging is tied with polyethylene and polypropylene resin.

Cold-rolled strip steel is the main raw material, and there are also nylon and polyester as raw materials, which are made by extrusion unidirectional stretching and heat treatment to turn blue. In addition to being used for corrugated boxes.

Sealing and bundling, hot-rolled steel coil bundling, cold-rolled steel.

In addition to roll bundling, glass, pipes, materials, fruits, etc. can also be bundled. Packing belts (PP, PET) are divided into PP packing belts (also known as polypropylene packing belts) and PET packing belts (also known as plastic steel packing belts), which are produced using polypropylene and PET polyester as raw materials, which are suitable for the packaging needs of different light and heavy objects.

Brief description: PP packing belt, PET packing belt are widely used plastic environmental protection packing belt, PP packing belt has been produced in China for more than 30 years, PET packing belt production in China has a history of more than 20 years. PP packing belt:

Explanation of terms: PP scientific name polypropylene, a light-weight environmentally friendly packing belt produced with polypropylene as raw material, used for automatic baling machines, semi-automatic baling machines, manual baling machines, etc., suitable for bundling a few kilograms to hundreds of kilograms.

Cartons or pallets for lighter objects. Raw material: The main raw material of PP packing belt is polypropylene brushed grade resin, which is colorless transparent solid particles, and the specific gravity characteristics:

Good plasticity, bending resistance, strong tensile force at break, light material, bright color and luster, easy to use. Classification: According to the surface color of the packing belt:

Colorless transparent PP packing tape. Translucent PP packing belt. Opaque PP packing tape.

PP packing belts in various colors. According to the proportion of polypropylene used in the production of packing belts: new pure PP packing belts, light material, bright color.

The old and new mixed pure material PP packing belt is light in material and slightly darker in color. Recycled sandwich PP packing belt, heavy material, dull color.

According to the packing tools used: fully automatic PP packing belt, which has strict requirements for width and thickness tolerances and small deflection. Semi-automatic PP packing belt, low requirements for width and thickness tolerance and deflection.

PP packing belt for manual baler has general requirements for width and thickness tolerance and deflection. The plastic buckle is matched with a thin PP packing belt. The steel wire buckle is matched with PP flexible fiber belt.

According to the use, it is divided into: PP ordinary packing belt for bundling cartons. Tie tobacco with PP smooth tape.

Bind the RMB with transparent PP banknote tape. PP chemical fiber tape for bundling chemical fiber package. Bundle PP anti-static tape for electronic products.

Use PP heavy duty belts for bundling heavy loads. PP flame retardant packing belt for woven coal mine grid. and other special special pp strapping belts for different industries.

Color: white, red, yellow, green, blue, black, colorless transparent, etc. Uses: It is used for packing cartons or other relatively light objects.

The manual packing belt is made of polypropylene as the main raw material, adding a variety of additives, drawn into a belt, woven into a net, the mesh into a regular hexagon, every three overlapping and pressing, closely connected, the tensile force is evenly dispersed in six directions, this structure is conducive to the dispersion of vertical heavy loads, the net and the net are connected with the net rope to become a whole, according to the different coal mining processes of each coal mine, it can be divided into layered mining and total mining. The mining plastic roof protection net is resistant to acid and alkali corrosion, not easy to age, has a long service life, and avoids the shortcomings of easy rust with barbed wire. Handmade packing belts are mainly made of:

Plastic mesh false top belt, mining plastic roof protection net, mining plastic net, coal mine support supplies, coal mine plastic net, mining plastic belt, plastic belt.

Packing belts (strapping belts) belong to packaging materials, which are generally divided into PP belts, PET belts (plastic steel belts), fiber strapping belts, iron belts, steel belts, and webbing belts (polyester belts). It is used for cargo packing, packaging fixing, cargo transportation fixing, etc.

PP belt, PET belt is generally used for small pieces, cartons, regular goods packaging, can be manual packaging or mechanical automatic packaging, the pulling force is generally not very large.

The fiber packing belt is an upgraded version of PP belt and PET belt, the inside is made of polyester fiber yarn as the main raw material, and the outside is covered with PP (polypropylene), the surface and edge are smooth, and it is safer to use, with the special steel wire packing buckle, the pulling force can reach about 500kg to 3 tons. Commonly used for heavy cargo, pallet baling, with the popularity of fiber belts, now some metal products, wood products, oil drums, steel structures, building timber and so on have begun to be widely used. In foreign trade exports, the fixation of pallets and goods inside containers is also widely used.

Iron belt, steel belt is suitable for mechanized automatic packaging, compared with fiber packing belt, it is not recommended to use manual packaging, widely used in wooden boxes, color coated plates, strip steel, steel plates, steel strands, welded pipes, aluminum ingots, magnesium ingots, zinc ingots, etc. However, the iron belt has the disadvantage of being easy to corrode, although the galvanizing process can be protected to a certain extent, but it has higher requirements for the storage environment, and it is easy to hurt the goods.

Webbing (polyester belt) has a high tensile force, often used for long-distance transportation and fixation of truck goods, with packing buckle, can be reused, generally used on large trucks, the procurement cost is slightly higher, but it is also more durable, suitable for the use of packing belts. The webbing is on the soft side and cannot be used mechanically.

Strapping is another name for strapping. Strapping straps (straps) for packaging

【Nanjing Lock Packaging】18 years of professional packing belt manufacturers.

PP and PET.

1. The melt mass flow rate (MFR) of PPPP is usually from 1 to 100. PP materials with low MFR have better impact resistance but lower elongation strength. For materials with the same MFR, the impact strength of the copolymer type is higher than that of the homopolymer type.

Due to crystallization, the shrinkage of PP is quite high, generally to.

2. PETPET plastic is the abbreviation of English polyethyleneterephthalate, referred to as PET or PETP. Chinese means: polyethylene terephthalic acid plastics, mainly including polyethylene terephthalate PET and polybutylene terephthalate PBT.

Polyethylene terephthalate is also commonly known as polyester resin. It is a condensation polymer of terephthalic acid with ethylene glycol, and together with PBT, it is collectively known as thermoplastic polyester, or saturated polyester.

Packing Strap Steps:

The plastic packaging tape material is a mixture of virgin and recycled polypropylene. Plastic packaging tape is resistant to acid, alkali and sulfide corrosion, and is not easy to oxidize.

Moisture resistance, long service life, light weight, easy to transport, improve labor conditions, lower cost than metal mesh.

It has the properties of flame resistance, antistatic and high strength. Plastic packaging tape is also known as packing belt, one of the packaging belt manufacturers, specializing in the production of various types of packing belts. <>

It depends on what kind of packing belt it is, there are PP material and PET material, and the appearance of PP is white or transparent on the market, which is mostly used to pack general goods; PET material is generally green in appearance, and is mostly used to pack heavy goods. At present, we are using the packing belt of Hejiaxin, which is light in weight and strong in tensile force, and very cost-effective.

The straps are made of polypropylene.

PE is added to stone powder, and that equipment is not expensive! Produce one meal a day.

There are three common hungry packing interfaces: ligated packing, hot-melt lap packing, and iron buckle packing.

1. Ligation packaging.

Ligature packing This joint method uses soft plastic rope, hemp rope, etc. as the binding material, and ties it into a slipknot at the joint of the packing belt. This joint is both strong and beautiful, and easy to unfasten. The strapping belt is made from a mixture of two types of plastic, PP and PET.

The main production process: plastic granules melting--- pressure tape --- forming--- cooling--- wrapping --- packaging - warehousing packing belt is a mesh structure of packaging materials produced by polypropylene through heating, melting, stretching and cooling, and the basic parameters affecting the quality of the packing belt are tensile force, length, bending, elongation, etc. With the same tensile force and other parameters, the longer the length, the lower the cost.

2. Hot-melt lap packaging.

The hot melt lap packaging adopts heating methods such as electric hot welding, mechanical high-frequency oscillation welding and ultrasonic welding, which is a way in which the surface of the plastic belt is heated and melted, and the melting surface of the two belt ends is overlapped, and the plastic belt joint is maintained under a certain pressure for a certain time, and the plastic belt joint is bonded after the melting surface is condensed. Features: Hot melt lap packaging is the latest packaging method, suitable for polypropylene plastic tape, because if the polypropylene plastic belt is mechanically fixed with iron buckle, its strength is only 50% of the base metal, and the adhesive connection is not suitable.

The excuse is strong and beautiful, but it can't be unraveled.

3. Iron button packing.

First, use the unidirectional work of the tensioner ratchet to make the packing belt tight, then place an iron buckle at the joint of the packing belt, and then use the clamp to make the iron buckle wrap the two layers of packing belt, and the side teeth of the iron buckle are concave and convex, and bite the packing belt to prevent it from loosening. The iron buckle is usually made of galvanized iron sheet, and the iron buckle should be selected according to the model of the packing belt during operation.

Distinguish in appearance.

1) Most of the PP belts on the market are white, transparent, yellow and black, while the vast majority of PET are green and black;

2) PP tape can be printed with monochrome logo, PET most of them can only be coding;

3) PP and PET of the same specification, PET is generally much harder than PP;

2.Distinguish from the use of the industry.

1) PP belt is mainly used in light goods industry, such as carton industry, ceramic industry 2) PET belt is mainly used for heavy goods packaging, such as steel, cotton 3Distinguish from chemical raw materials.

PP packing tape is also known as polypropylene packing belt, its raw material is polypropylene drawing grade resin, PET plastic steel belt is also known as polyester packing belt (polyethylene terephthalate, PET), made of polyethylene terephthalic acid (PTA) and ethylene glycol polymerization, polyester (PET) is mainly used for bottle-grade polyester (widely used in the packaging of various beverages, especially carbonated beverages), polyester film (mainly used for packaging materials, film and tape, etc.) and chemical fiber polyester.

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Packing belt is a wide range of packaging materials, its wide variety, according to different classification methods, can be classified in the following aspects: From the perspective of bearing capacity, there are mainly PP packing belts, plastic steel packing belts (also called PET packing belts) and iron packing belts; From the raw materials for making packing belts, it can be divided into new material packing belts and recycled material packing belts; The packing belt used in my friend's factory is Hefei Baole, in fact, it is relatively simple to distinguish.

The quality of PP material produced can be divided into core-spun tape and solid core-core tape;

In terms of product quality, it can be divided into transparent A-grade, transparent B-grade, A-grade, AB-grade, B-grade, BC-grade and C-grade;

From the use of the strapping machine, it can be divided into manual strapping, machine strapping (machine strapping is divided into automatic machine strapping and semi-automatic machine strapping);

In terms of use, it can be divided into packaging packing belts and handicraft belts;

From whether the printing can be divided into printing tape and non-printing tape;

From the perspective of bearing capacity, there are mainly PP packing belts, plastic steel packing belts (also called PET packing belts) and iron packing belts;

From the raw materials for making packing belts, it can be divided into new material packing belts and recycled material packing belts;

In terms of color, there are mainly white packing belts, gray packing belts and colored packing belts.

Generally speaking, the plastic steel packing belt is transparent and easy to burn, so it is necessary to take fire prevention measures, and the flame is yellow and black smoke when burning. The main difference between the packing belt is that the thickness is different, and generally speaking, the requirements for the machine are relatively high. PET straps are more suitable for packing heavier objects.