PET granules that lead to the production of PET containers or bottles using the blow moulding method are often the cause behind many production faults. They are considered to be the root cause for the majority of PET bottle quality issues. Inspection made at the base level can help the product designer to keep a check on the production efforts and remove the reasons that may raise an issue in further bottle manufacturing.

How the inspection of PET granules is linked with the quality of PET Bottles?

PET granules are tiny particles that are composed of Polyethylene Polymer which is popularly used in making PET packaging material like PET bottles. As we all know PET bottles are the most trending beverage packaging used by today’s generation. In such high demand, the production requires to deliver the highest quality of material matching all the set criteria of the industry as well as those raised by customers. To fulfil all that, one must conduct high-level quality control over the material.

However, product engineers, designers or manufacturers usually take quality inspection as not that important. And if at all they keep measures to check the quality standards of their PET bottles, they usually perform end-product inspection, where there are maximum chances of faulty and defective material going into vain and resulting in product loss.

The only right method to test is conducting the inspectional procedures at the initial level, where we can figure out the root cause of quality issues. In the case of PET bottles, the granules of which the bottles are made if are checked for their capacity to flow when melted at a specified temperature can assure the quality of Bottles manufactured by a blow moulding technique. As in the moulding technique, the granules are melted and blown into a Bottle.

How we can inspect the flow quality of PET Granules?

The Molten flow quality of PET granules can be tested by Melt Flow Index Tester. The equipment delivers a standard controlled environment that helps evaluate the flowing rate of the molten granules. The MFI values indicate if the raw material matches the set requirement or not, also if the particles will be made into a fine bottle with fewer chances of quality errors.

MFI value is a vital test parameter to examine the structural properties of the PET granules while they flow at their melting point under the input of specified weight. The MFI test results are also important, as it provides the required details related to mass flow rate or MFR of the PET granules polymer per 10 min of time.

The Melt Flow Index Tester is precisely designed as per international test standards. The equipment comes with high-end polymer testing features like a highly controlled temperature management system with a microprocessor-based digital temperature controller. One can never go wrong with this controlling system delivering highly precise data. It allows MFI testing up to a range of 0 to 400 Degree Celsius that can cover a wide range of testing for many kinds of polymer material. It delivers specified weight for load application during the test with 2.16 Kg and 5 Kg hard chrome plated weights.

The machine is well equipped with accessories like Orifice, Piston, Material charger, Barrel Cleaner, Orifice cleaner, and Sample Cutter. This machine comes with a maximum number of support systems that ensures fewer chances of error development during the test. The machine is painted with Powder Coated material to ensure long-lasting protection from corrosion and other weathering factors. Users can take benefits from the Preset timer facility and buzzer output so that they can leave the machine on test unattended and come back at the desired time with less occupancy while testing.

It gives the user a provision of Automated Sample Cutting that is the highest automation known in the MFI tester range. This allows zero human involvement and reduces error chances. The test values are displayed timely on a digital LCD screen