Starlinger: Circularity For Woven Plastic Packaging
Starlinger: Circularity For Woven Plastic Packaging
With cutting-edge technology for woven plastic packaging production and plastics recycling, Starlinger offers the entire machinery to fully close the loop.
Founded in 1835, Vienna-based Starlinger & Co Ges.m.b.H. leads the world market in machinery and process technology for bags and technical fabrics made of plastic tapes. The family-owned company is a pioneer in the field of circular packaging solutions and does not only offer sustainable packaging concepts made of woven tape fabric, but also recycling solutions for plastics and PET sheet production lines that process up to 100 % recycled PET.
With the high-tech woven sack production equipment from Starlinger a wide range of top-quality sacks and big bags made of polypropylene and PET can be produced efficiently and with low raw material and energy consumption. The sacks are used in various industries – e.g. in agriculture, chemicals or construction – for packaging dry bulk goods such as seeds, grains, flour, sugar, fruits and vegetables, animal feed, chemicals, fertilizer, cement and similar products. Starlinger’s machine portfolio ranges from PP/PET extrusion lines, circular looms, coating and printing equipment to highly automatized sack conversion lines as well as additional equipment such as dosing units, tubing machines, roll slitters or baling presses.
Sustainability plays a key role both in technology and packaging product development: Starlinger machines process high contents of recycled input material, turning it into top-quality packaging, and packaging solutions developed by Starlinger feature low input material consumption and are 100 % recyclable.
A multi-functional packaging genius
With the AD STAR block bottom valve sack, Starlinger has created a cost-effective and highly sustainable type of packaging for dry bulk goods. They are used worldwide predominantly in the cement and construction industry, but also for packaging flour, rice, or cereals. Currently, a total of 25 billion AD STAR sacks are produced in more than 60 countries. Made of strong woven polypropylene tape fabric, Starlinger AD STAR block bottom sacks are tear-proof, lightweight, protect the content against humidity, and can be used on automatic filling lines. Compared to paper block bottom sacks they have a far lower material consumption and breakage rate and thus a significantly reduced C02 footprint. Being a mono-material packaging, they meet “Design for Recycling” requirements and enable packaging producers to comply with national and international sustainability regulations.
Starlinger’s ad starKON block bottom bag conversion lines produce AD STAR sacks at top production speeds and with unrivalled efficiency, capturing the competitive edge for packaging producers in their markets. With a filling volume from 9 to 75 litres, ranging from almost airtight to highly air-permeable, from extremely lightweight to highly durable, and from industrial to consumer goods bag, AD STAR sacks can be easily modified to meet the respective requirements. Features such as easy-open closure, carrying handles, optional BOPP lamination, micro-perforation and inliner enable packaging producers to cover a wide range of packaging applications.
The smart bag for bulk consumer goods
PP STAR pinch bottom bags are Starlinger’s solution for the retail and consumer goods sector – particularly for dry pet food, rice, sugar, flour, cereals, but also seeds or fertilizers. With its extremely low weight and at the same time high durability which results in low breakage rates, PP STAR bags are one of the most advanced plastic packaging solutions for dry bulk goods. Made from a composite of BOPP-laminated polypropylene tape fabric and featuring a pinch closure, they are a mono-material packaging that is both sustainable and has the appeal producers in the consumer goods sector look for. PP STAR bags are fully recyclable and have an exceptionally low raw material consumption – a single-layer PP STAR bag for a volume of 25 kg weighs only 118 g/m2. With the reverse-printed BOPP film there are no limits for attractive and striking packaging design – perfect for brand owners to set their product apart.
PP STAR bags are produced on Starlinger’s newly developed pp starKON pinch bottom conversion lines. Their unique patented laser perforation system enables the production of a wide range of different bag formats, giving packaging producers flexibility .
FIBCs made from recycled polypropylene and PET
Starlinger’s advanced SPB filter for tape extrusion enables the processing of high shares of rPP on Starlinger tape extrusion lines. The tapes meet the requirements for heavy-duty packaging applications, and the produced container fabric fulfils all safety standards for FIBCs. Properties such as tensile strength, weight and safety factor of FIBCs with rPP content have been tested in certified test procedures and correspond to those of FIBCs made from virgin material.
Based on many years of experience in PET recycling, Starlinger has also developed the technology for producing fabric from PET tapes. PET tapes impress with high tensile strength and a high creep modulus (deformation resistance under mechanical stress), as well as low residual shrinkage values, resulting in the fabric and the products made from it having particularly high strength and long-term shape stability. FIBCs made of PET tapes are especially suitable for packaging and storing bulk goods with strong flow characteristics: The strength of PET tape fabric prevents bulging and subsequent tipping over of the stacked FIBCs, even with very slippery content. Due to their dimensional stability, PET FIBCs are a cost-saving alternative to more expensive packaging like cardboard octabins. The excellent recyclability of PET enables the production of big bags made from 100 % rPET, making them a perfect closed-loop packaging alternative.
Closing the loop for plastic packaging
With proven competence in plastics recycling and refinement, Starlinger also supplies tailormade solutions for the plastics recycling industry. Starlinger recycling systems process a wide variety of plastics such as PE, PP, PA PS, BOPP and PET.
The company divisions Starlinger recycling technology and Starlinger viscotec are leading technology suppliers in the field of PET recycling and rPET sheet lines for thermoforming. Many brand owners and national and international authorities such as the European EFSA and US FDA have authorised the Starlinger recycling process for the production of food-grade rPET and rHDPE regranulate.
Made for India from India
A new member of Starlinger Group, STP Machinery India Private Limited was founded at the end of 2023 in Ahmedabad in the Indian state of Gujarat. The company manufactures high-tech PP tape extrusion lines designed for the production of tapes for standard woven sacks, AD STAR block bottom valve sacks, big bags and other applications for PP tape fabric, with an output of 600 kg/h at a production speed of 450 m/min. They have been specifically designed for the Indian market in terms of technology and equipment, are easy for the operator to use and ensure a stable and efficient production process. In addition, STP Machinery provides spare parts and technical support not only for its own machines, but will also act as a service hub for Starlinger lines installed in India. This ensures rapid spare parts availability through reduced delivery times, short distances and flexible processing, resulting in optimum machine availability for both Starlinger and STP Machinery customers.
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