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BB Engineering: Visco+ innovative vacuum filter for IV setting (c) BB Engineering
Graphical animation of Visco+
28.04.2021

BB Engineering: Visco+ innovative vacuum filter for IV setting

Under vacuum, the new BB Engineering large-area filter produces a homogeneous, pure melt with a targeted IV setting for instance, for returning polyester production waste to the melt flow, but also for achieving a homogeneous viscosity in the case of virgin material.

BB Engineering has expanded its melt filter portfolio to include a patented large-area vacuum filter designed especially for processing polyester waste. The so-called Visco+ filter is already known as the key component of the BB Engineering VacuFil recycling system. Now, it is also available as a separate and easily-integratable upgrade component for existing systems. Within this context, the uses of the Visco+ are by no means limited to just decontamination. Here, the Visco+ offers the following solutions:

Under vacuum, the new BB Engineering large-area filter produces a homogeneous, pure melt with a targeted IV setting for instance, for returning polyester production waste to the melt flow, but also for achieving a homogeneous viscosity in the case of virgin material.

BB Engineering has expanded its melt filter portfolio to include a patented large-area vacuum filter designed especially for processing polyester waste. The so-called Visco+ filter is already known as the key component of the BB Engineering VacuFil recycling system. Now, it is also available as a separate and easily-integratable upgrade component for existing systems. Within this context, the uses of the Visco+ are by no means limited to just decontamination. Here, the Visco+ offers the following solutions:

  • IV homogenization: if an existing production system is struggling with IV fluctuations, the Visco+ is able to actively intervene and balance out any irregularities;
  • IV increase: if the final viscosity is insufficient when processing recycled materials, the Visco+ can increase the IV without the negative impact of long residence times.

In this way, the Visco+ enables fast and flexibly-controllable viscosity build-up and reliable viscosity monitoring of the polyester melt using a to-date unique, patented process. Depending on the intended end use, the melt can be ad-justed to the further processing procedure in a targeted manner. The requi-site melt properties above all the intrinsic viscosity, but also the purity and homogeneity are achieved in a reliable and reproducible manner and can also be adjusted during ongoing operation.

As a melt filter, the Visco+ operates like a liquid-state polycondensation unit. A maintenance-intensive reactor or a deposit-prone stirring unit are not required. Moisture is removed from the PET in the filter, which – in conjunction with an adjustable residence time – results in the desired IV increase in the vacuum. This enables a controlled IV build-up of up to 30%. The intrinsic vis-cosity is the central quality figure in PET recycling and rPET processing. It determines the melt performance in the downstream production process and the properties of the end products. The intrinsic viscosity is continually moni-tored by means of an integrated viscosity measurement unit and reliably adjusted in the event of deviations (caused by disparate input qualities, for ex-ample). At the same time, the filter provides an enormous material surface compared to the volume and continuously renews this. To this end, contamination can be removed particularly effectively from the starting material by means of automatically-regulated high-performance vacuum (1-30 mbar).

The Visco+ is particularly suitable for recycling PET waste that is to be reused for high-end products.

Source:

BB Engineering

(c) BB Engineering GmbH
26.11.2020

BBE's VacuFil recycling line for PET

Polyester and its applications are omnipresent in our everyday lives. Whether as beverage bottles, film packaging, high-tech sports shirts or safety belts, polyester excels with its excellent mechanical properties and inexpensive production. However, the constantly rising demand requires responsible handling of global resources. For this reason, it is not only ‘virgin polyester’ generated from crude oil that is exclusively the raw material for manufacturing, so too is polyester recycled from post-production and post-consumer waste. Processing production waste also helps cut raw material, disposal and transport costs, hence increasing efficiency.

Polyester and its applications are omnipresent in our everyday lives. Whether as beverage bottles, film packaging, high-tech sports shirts or safety belts, polyester excels with its excellent mechanical properties and inexpensive production. However, the constantly rising demand requires responsible handling of global resources. For this reason, it is not only ‘virgin polyester’ generated from crude oil that is exclusively the raw material for manufacturing, so too is polyester recycled from post-production and post-consumer waste. Processing production waste also helps cut raw material, disposal and transport costs, hence increasing efficiency.

BB Engineering has developed an innovative solution for the recycling of post-production polyester fibre waste, called VacuFil. Decades of experience in the areas of extrusion, filtration and spinning systems have been bundled into a new, innovative core component – the vacuum filter. It unites gentle large-scale filtration and controlled intrinsic-viscosity build-up for consistently outstanding melt quality. The attached vacuum swiftly and reliably removes volatile contamination and ensures a controlled IV-increase. Comprising an inline viscosity measuring unit connected with the vacuum unit the IV can be controlled continuously and reliably. Hence, producers are able to generate that specific kind of recycled polyester they need for their application.

Source:

BB Engineering GmbH

Oerlikon (c) Oerlikon
f.l.t.r Jochen Adler, Ralf Morgenroth, Markus Reichwein, Matthias Schmitz
15.10.2020

Oerlikon Experts share their know-how online

In order to ensure the transfer of know-how and technology in times of the pandemic, the Manmade Fibers segment of the Swiss Oerlikon Group will start its new webinar series in November. Four interesting technology lectures are planned until the end of 2020 which will be held in English. Current trends in the production of manmade fibers as well as Oerlikons technology solutions will be presented and discussed with the participants. A continuation of the webinar series is already planned for 2021.

In order to ensure the transfer of know-how and technology in times of the pandemic, the Manmade Fibers segment of the Swiss Oerlikon Group will start its new webinar series in November. Four interesting technology lectures are planned until the end of 2020 which will be held in English. Current trends in the production of manmade fibers as well as Oerlikons technology solutions will be presented and discussed with the participants. A continuation of the webinar series is already planned for 2021.

  • Factory know-how from a single source – A boost for your efficiency
    4. November 2020: 11:00-11:45h CET
    Speaker: Jochen Adler, Oerlikon Manmade Fibers CTO*
     
  • VarioFil – Your compact spinning solution
    11. November 2020: 11:00-11:45h CET
    Speaker: Ralf Morgenroth, Head of Engineering Textile Machinery BB Engineering (BBE)*
     
  • Green Technologies – Join us on the road to a sustainable fiber industry
    2. December 2020: 11:00-11:45h CET
    Speaker: Markus Reichwein, Head of Product Management Oerlikon Manmade Fibers*
     
  • VacuFil – Your future upcycling plant, from waste to value
    9. December 2020: 11:00-11:45h CET
    Speaker: Matthias Schmitz, Head of Engineering Recycling Technology, BB Engineering (BBE)*

 

*Please read the attached document for more information

Source:

Oerlikon Textile GmbH & Co. KG