|
How to identify the quality of the package belt
Release time:
2017-05-23 17:02:06 Clicks:4300 |
|
Packing belt quality is good or bad, depends on the packing belt of polypropylene purity is not high, the current market with a wide range of packing: pure polypropylene, polypropylene plus masterbatch, polypropylene and renewable materials, polypropylene and renewable materials And masterbatch. Pure polypropylene production of the packaging with a fully transparent state, polypropylene and masterbatch production of packaged areas for the translucent state, polypropylene and renewable materials to produce the packaging belt is basically opaque, polypropylene plus masterbatch and renewable materials production of the packing belt Completely opaque There is also a fully recycled materials and calcium carbonate powder core material production of the packing belt, fully renewable materials production of the packing belt is relatively soft, sandwich material only the surface of the raw material, the rest are calcium carbonate powder (lime powder). The quality of the packing tape depends entirely on the purity of the polypropylene, and the higher the purity of the polypropylene, the better the tension of the packing tape.
Packing belt with the way:
(A) hot melt lap type. It uses electric heating, mechanical high-frequency oscillation welding and ultrasonic welding and other heating methods, is the plastic surface with heat melting, the two ends of the melting surface of the lap together, under a certain pressure to maintain a certain time, to be melted surface condensation , Bonding a good way with plastic joints. The joint method is suitable for polypropylene plastic belt, because the polypropylene plastic belt with metal buckle mechanical fixed, the strength of only 50% of the base material, adhesive connection is not applicable.
B) metal button. This method is the first use of tensioner ratchet one-way work, so that the tape tension, and then placed in the joints of an iron buckle, and then clamp to iron clip two layers of tape, and iron buckle side of the teeth Of the teeth, bite the tape will not make it loose. Iron buckle is usually made of galvanized iron, the operation according to the strap model to select the appropriate specifications of the iron buckle.
C) ligation. This kind of joint is a soft plastic rope, hemp rope for the binding material, joints made into knot. This joint way is both solid and beautiful, and easy to unlock.
The packing tape is made of PP and PET blends.
The main production process: plastic grain melting --- pressure belt ---- forming ---- cooling ----- winding volume ---- packaging - packing system with polypropylene by heating, melting, pulling The basic parameters that affect the quality of the packing tape are tensile, length, curvature, elongation, and so on. In the case of the same tension and other parameters, the longer the longer the lower the cost.
Packing belt of economic benefits * with a full range of varieties and a variety of colors
* With the CIS project to promote the image
* Suitable for a variety of product packaging requirements
* Enhanced product packaging visual effects
* Quality conforms to GB12023-89 standard
* National two patents
* More speculative shape
Several commonly used packing belt:
A) steel packing belt. It is generally used to load very heavy loads into an integral part or to load the load in a train, trailer or ocean-going vessel, and is rarely used for a contracted load that is sagged or displaced after being strapped, but can be tightly strapped Of the load, and often used for rigid load strapping.
B) Nylon packing belt. Has a high continuous tension, generally used for heavy objects and can withstand high initial tension of the contracted load of the bundle, the elongation and recovery rate than the polyester or polypropylene packing belt is the most expensive plastic Packing belt.
C) Polypropylene packing tape. Is the cheapest strapping material, it is generally used for lighter load strapping, bundling and sealing cartons. Polypropylene packing tape with high elongation and recovery rate, but the continuous tension as other plastic packing belt.
D) Polyester packing tape. In the plastic packing belt has the highest strength and the highest sustained tension. Polyester packed tapes are an excellent tying material for rigid loads that require strapping tension during handling, transport and storage. It is often used in applications where high tensile strength, high continuous tension and elongation are required, and in many cases it is similar to a lightweight steel belt. |
|
|
