The Chinese global film supplier invests in two 7-m sequential film stretching lines for the production of BOPA films. 

Xiamen Changsu orders production line for BOPA film 

Kunststoffverarbeitung: Maschinen und Komponenten

Extrusion

Folien

Brückner delivers sequential film stretching lines 

In 2013, Reifenhäuser introduced the high-performance extrusion lines for PET thermoforming sheets with the patented mechatronic polishing stacks of the MIREX-MT-V design series. Now Reifenhäuser introduces the next generation of this line type. 

Reifenhäuser Combines Improved Components 

Industrie 4.0

Polyethylenterephthalat

Extrusionswerkzeuge

Flachfolien- und Plattenextrusion

Verpackungsmaterial

New Generation of PET Thermoforming Sheet Lines 

Like plastics manufacturing and processing, the recycling of plastic products requires specialization to be efficient. Accordingly, a Dutch company has dedicated itself entirely to the recycling of agricultural and packaging films ¿ and invested in a machine technology, which was found along tortuous ways. 

Technical Answers to World Political Changes in Film Recycling 

Kunststoff-Aufbereitung

Schmelzefilter

Sortierer

Kunststoff-Recycling

From Waste Collector to the  Plastic Recycler 

Even if the European market is currently only showing modest growth, PVC has continued its global growth unbroken. The plastic is becoming ever more environmentally compatible and is benefiting from global trends. The restructuring of the industry has made progress; the consolidation pressure on Western European PVC raw materials manufacturers has eased for the time being. 

PVC Is Showing a Positive Growth Trend, however, It Has Still Not Entirely Regained its Former Strength 

Kunststoff Werkstoffe

Polyvinylchlorid

Polyvinyl Chloride (PVC) 

For hard-soft combination with liquid silicone, polyolefins are a lower-cost alternative to engineering thermoplastics as carrier materials. To achieve a satisfactory bond between silicone and polyolefin, a multilayer film was trialed as an adhesion promoter. The material bond is produced directly during the injection molding cycle using an in-mold decoration film, so saving time and money. 

Polyolefins Modified for Use as Carrier Materials in Thermoplastic-Liquid Silicone Rubber Combination by In-Mold Decoration  

Thermoplaste

Polyethylen

Polypropylen

Verbundwerkstoffe / Werkstoffverbunde

Silikone

An Incompatible Pair Stick Together 

Thermoplastic high-performance polymers from Victrex Europa GmbH, Hofheim, Germany, can be used under extreme conditions. For the needs of the oil and gas industry, new thermoplastic high-performance polymers were developed for use at temperatures from -196 to +200 °C, which are intended for seal systems. With Victrex OGS 125, a polyetheretherketone (PEEK) is available that was specially developed for compression molding of large seals. 

Victrex 

Hochleistungskunststoffe

Materials for Extreme Conditions 

Until now, most of the extrusion product demand has been met by polyamides 11 and 12, which ensure a good chemical resistance, a low level of rigidity, translucency and low moisture absorption but are quite costly. With Radilon D, Radilon DT and Radilon CD, RadiciGroup now offers an alternative: A range of LCPA-based materials with an excellent cost/performance ratio while maintaining good properties in terms of chemical resistance, low moisture absorption, good mechanical properties and better thermal properties (higher melting point). 

Specially Developed for Extrusion 

Polyamide

New Radilon Polyamides 

The better a thermoplastic flows, the wider is its processing window. A product innovation for easy-flowing materials is presented by Lanxess Deutschland GmbH, Cologne, Germany, with Durethan BKV 30 XF, a polyamide 6 (PA6) with 30 % glass fiber content. It is over 17 % more easy-flowing than its predecessor and 62 % more easy-flowing than the standard material (Fig. 3). For approximately just as good mechanical properties, it is also claimed to achieve high-quality surfaces. There are also new developments in PA6 compounds that are reinforced with 30 % of a mixture of glass fibers and glass microspheres. Durethan BG 30 X XF, BG 30 X H2.0 XF and BG 30 X H3.0 XF, besides high flowability, also show an extremely low tendency to warp. According to the manufacturer, for a good mechanical property profile, the flowability is over 30 % higher than for a standard PA6. The target market of the thermally stabilized H3.0 grades, with a very low copper and halide content, are components for the electronics industry like plugs, connectors and fuse boxes. The H2.0 grade is specially targeted at component applications that are black pigmented and high thermally loaded. 

Lanxess 

Compound

Fluently to Success 

Mineral fillers are widely used in the automotive industry to enhance the performance of polymer grades. A recycling concept has now been developed, in which natural fiber-reinforced polymers are pyrolized to produce pyrolysis char as an alternative filler for thermoplastics. 

Recycling of Natural Fiber-Reinforced Polymers to Sustainable Pyrolysis Char Filler 

Additive

Füllstoffe für Kunststoffe

Faserverarbeitung

Kunststoffe

Filler with Lightweight Potential 

Cracks often appear on screws and unsettle customers. The manufacturer EJS is often confronted with this effect and has got to the bottom of it. 

EJS Investigates Crack Behaviour 

Extrusions-Zubehör

The Danger of Cracks on Screws 

Colines spa, Novara, Italy, has developed a system for the production of high range thickness CPP, CPE and multilayer barrier film, from 15 to 500 micron, called “Thick&Thin”. 

Cast Unit for Cast Film Extrusion 

Thick and Thin 

Macchi presented at K the new Pod-Flex series for the production of seven-layer blown films with a net width of 2700 mm. The extrusion line can extrude laminate, barrier and biomaterials, since the new TES72 extrusion die, which is completely PVD-coated, can process both polyolefin and barrier-film formulations on the same line. 

Technical Advances in More Flexible Blow-Molding Lines  

Blasfolienextrusion

Higher Speed for Material Exchange 

The EMVA announces that based on the high dynamics of the COVID-19 pandemic development the EMVA Business Conference 2020 in Sofia is cancelled.  

One-day Conference in Online Format is Planned for June 

Spritzgießmaschinen

Europa

EMVA Business Conference in Sofia is Shifted to 2021 

One way to increase recyclability is to use mono-material film. But such film must not be inferior in any way to its multi-layer predecessors. Brückner Maschinenbau GmbH & Co. KG, Siegsdorf, Germany, has therefore developed a new inline coater (ILC) for all BOPP and BOPE lines that is installed in the line upstream of transversal stretching. The manufacturer claims it can produce extremely thin functional layers in the nano range. The extreme thinness of the layers means that they do not disrupt sorting and recycling, but do allow, for example, improved adhesion during metallizing and excellent barrier properties in conjunction with very thin aluminum oxide coatings. 

Production of a battery separator film (© Brückner Group) 

Brückner Maschinenbau at K 2019 

Sustainable and Efficient  

Gneuss Kunststofftechnik GmbH, Bad Oeynhausen, Germany, has different models of its patented rotary filtration systems. The continuous systems feature cavities arranged in a ring pattern on the filter disk, allowing screens to be changed without interrupting the production process and without pressure fluctuations. The system can be used for many different types of polymer with different viscosities. The new model is intended to combine the properties of several older models in one simple and cost-effective solution. 

 SFneos: on display at the trade fair with 260 cm² active screen surface area, available up to 2370 cm² (© Gneuss) 

Gneuss at K 2019 

New Filter and Revamped MRS Target Cost Efficiency 

Extrusion Lines for Waterproofing Membranes 

Multi-Layer Membrane Production in One Step 

Since the recent market trend is gradually growing more in favour of synthetic components than bituminous ones, Amut S.p.A., Novara, Italy, now offers extrusion lines producing waterproofing membranes capable to process different thermoplastic materials, such as F/PVC, TPO, TPE in a single step. The use of these materials improves the technical performances and the physical features of the membrane, complying with international standards and requirements in the civil works sector. 

Amut's technology allows the multi-layer membrane production in one step (no off-line lamination required) using a single calender. This process reduces the costs and simplifies the running operations for the operator. Furthermore, multi-layer reinforced membranes can be produced in a single step by means of reinforcing elements laminated among the layers to enhance the mechanical resistance of the finished product. Also, support base (fleece-back) lamination, usually on the lower side of the membrane, is possible. 

Amut has recently supplied an Hybrid Type Line, capable to produce F/PVC or TPO membrane 2.200 mm width, three layers of thermoplastic material and thickness range from 1 to 3 mm, to a Turkish customer. The extruders’ screws special design is suitable for both materials, so no screw change is required. Within the  membrane’s configuration, it is included an inner reinforcing scrim and a bottom protective/supportive fleece (fleece-back). 

The total output is 1800 kg/h for F/PVC and 1250 kg/h for TPO, giving an annual membrane production of more than 4 million m 2 . A double-inlet calender allows for a “sandwich” geometry in a single step: the external layers, with inserting/laminating of reinforcement in polyester or in glass fiber, and coating of fleece-back. The line is also equipped with a thickness gauge measuring device, a high accuracy winder unit to produce jumbo and custom rolls and PC/PLC system to control all running operations of the line.

Amut S.p.A.  

https://www.amut.it

1409945 Z_TT_Product_Waterproofing Membranes_Amut

issue 03/2022

issue 02/2022

issue 01/2022

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