Methods for recycling plastic Nylon 6,6 from vacuum bags to obtain filaments or powder for 3D printing processes. The method to obtain filaments includes a step of providing used Nylon 6,6 vacuum bags, a quality control step to check the status of the used vacuum bags, a step to form smaller parts, such as smaller pieces or pellets, from the used vacuum bags, quality control step to check the status of the smaller pieces or the pellets, an extrusion step wherein the smaller pieces or the pellets are introduced into an extruder, where they are melted, and the molten mixture is cooled and expelled through the die of the extruder to produce the recycled filaments, and a winding step wherein the recycled filaments that go out of the extruder are rolled up in coils.

A method and a system for comminuting and cleaning waste plastic are described. For this purpose, waste plastic is comminuted and pre-washed in a wet mill and then cleaned in a washing system. The resulting wastewater is subjected to mechanical filtration and flotation and then temporarily stored as circulating water. Based on this, some of the circulating water is returned to the wet mill as first process water and some of the circulating water is returned to the washing system as second process water. In this way, the first and second portions of the circulating water may be specifically adapted to the respective water requirements of the wet mill and the washing system as well as to the required water qualities, if necessary with selective post-cleaning of the second portion of the circulating water. As a result, the fresh water requirement for the process described may be minimized.

A method of recycling a large amount of insole scrap stack is proposed. The method includes forming a plate-shaped stack made of flat-plate-shaped foam and woven fabric, separating an insole scrap stack from the plate-shaped stack, and forming a pulverized insole scrap having an average diameter of 0.05 to 0.7 mm by cool-pulverizing or freeze-pulverizing the insole scrap stack at 10° C. or less. The pulverized insole scrap may be used for manufacturing foam.

Embodiments relate to a polyester film, preparation method thereof and method for reproducing polyethyleneterephthalate (PET) container using same, the crystallization temperature (Tc) of the polyester film is not measured or is 70° C. to 130° C., as measured by differential scanning calorimetry, whereby it is possible to easily control the crystallinity. Accordingly, the polyester film has excellent shrinkage characteristics and recyclability, and clumping rarely occurs even if it is dried at high temperatures for a long period of time in the regeneration process.

The present disclosure relates to a recycling system for recycling of composite materials such as wind turbine blades. The recycling system comprises a plurality of processing units that may be transported to a location of interest and assembled into the recycling system. Each processing unit configured to carry one or more recycling step(s).

A method of producing a chemical pulp from a textile material which comprises cellulose for manufacturing regenerated cellulosic molded bodies, wherein in the method the textile material is comminuted, at least a part of non-fiber-constituents of the comminuted textile material is separated from fiber-constituents of the comminuted textile material, at least a part of non-cellulosic fibers of the fiber-constituents is mechanically separated from cellulosic fibers of the fiber-constituents, at least a further part of the non-cellulosic fibers is chemically separated from the cellulosic fibers, and producing regenerated molded bodies from the chemical pulp based on the cellulosic fibers after mechanically separating and chemically separating.

The embodiments relate to a polyester film, to a process for preparing the same, and to a process for regenerating a polyethylene terephthalate (PET) container using the same. The polyester film has excellent seaming characteristics and recyclability by virtue of controlled crystallinity, whereby clumping rarely occurs even if it is thermally treated for a long period of time in the regeneration process.

Methods and equipment for the recycling of carpet are disclosed that produce a clean fiber product suitable for industrial use. The methods allow the recovery of face fiber material, for example a polyester, polyolefin, or a polyamide, from carpets that includes a face fiber material, a polypropylene backing material, and an adhesive, and include the steps of mechanically impacting the carpet to break the bonds between the adhesive and the fibrous components, treating the fibrous components to remove adhesive granules from the fibrous components, and optionally separating the polypropylene backing from the face fiber. A clean adhesive/calcium carbonate product can also be produced from this process.

The invention relates to a device for preparing composite material waste, in particular carbon fiber-reinforced waste, comprising a comminuting assembly (2) for the composite material waste, a downstream temperature control zone (3) for controlling the temperature of the comminuted composite material waste, and a forming unit (4) for producing composite material waste compacts. In order to provide companies without recycling facilities, regardless of the type of composite material waste, with a low-cost and environmentally friendly alternative to dumping harmful composite material waste in landfills, it is proposed that the comminuting assembly (2), the temperature control zone (3) and the forming unit (4) are arranged in an at least substantially hermetically sealed and transportable working chamber (1).

Embodiments relate to a polyester-based film and a process for regenerating a polyester-based container using the same, which not only solve the environmental problems by enhancing the recyclability of polyester-based containers but also are capable of enhancing the quality, yield, and productivity. When the polyester-based film is cut into a size of 1 cm in width and 1 cm in length, immersed in an aqueous solution of sodium hydroxide (NaOH) having a concentration of 1% by weight, and stirred for 15 minutes at 85° C. at a speed of 240 m/minute, the average particle size of the component of the printing layer separated from the base layer satisfies 15 μm or more. Thus, it is possible to enhance the quality of the regenerated polyester-based chips produced from the polyester-based container provided with the polyester-based film.