PP based 3-Layer Blown film for BOPP bags(Continuation of earlier BOPP Bags article)In an earlier article we reviewed eco-friendly BOPP laminated bags. We would carry forward the discussion with possible alternatives of BOPP film with a PP based 3-Layer Blown Film. This PP film can also be used in different other applications as metallised-PP film for high barrier & various other pouching applications. In India, BOPP films are made by very few players on a large scale. It’s difficult & costly for small converters as they have small quantity jobs / requirements to be supplied in a shorter lead time. So the challenge against converter remains as cost & availability of BOPP films. Hence it gives a scope to find possible alternatives to BOPP film. Mamata has a solution to offer for this in the form of -PP based 3-Layer Film Line. Mamata’s state-of-the art Multilayer films plants have successfully demonstrated PP based 3-Layer Film. It is possible to produce upto12 micron电影在一个三线。制作电影可以reverse printed and laminated with woven fabric to make a Laminate Bag. Properties of both films (BOPP & PP Based 3-Layer Film) match to a great extent, mainly the physical properties such as transparency and mechanical properties. Additional advantage of Co-extruded Blown film are as :-

• In comparison to BOPP film, there can be a substantial saving in laminates cost. Co-extruded film would cost a converter approx.25% less overBOPP film.

• Co-extruded film has better Seal Strength over BOPP film.

• Higher Dart impact strength can be achieved in Blown film by blowing a film bubble at optimum Blow-up ratio (BUR) & using metallocene polyethylene material.

• Desired mechanical properties can be achieved in blown film as film gets stretched in both MD & TD in blown film extrusion process. Properties can be further enhanced with the MDO process. It is possible to incorporate MDO equipment inline or offline.

• The minimised film thickness is not compensated with stiffness and optics of the film and hence blown film is perfect option for woven sacks business.

• Blown film provides excellent bond strength in printed and non-printed areas and doesn't need any special treatment or coating after printing.

• Short jobs upto 500 kg of film can be made hence facilitating converters out of keep-in stock mechanism and finally enabling shorter product lead times.

For further related matters, industry is welcome to discuss with us. With Regards, Team MamataMamata Machinery Pvt. Ltd.Survey No. 423/P, Sarkhej Bavla Highway, Moraiya, Tal: Sanand, Dist.:Ahmedabad - 382213, Gujarat, INDIA. Tel : +91 2717 630800, Email : sales@mamata.com, Web : www.mamata.com

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