Proprietary Allegro® T sealant, from Rollprint Packaging Products, Inc. offers a high performance, cost-effective way to seal to uncoated Tyvek® yet retain the features of a coated product. Allegro® T technology provides an ideal solution for pharmaceutical and medical device manufacturers looking to achieve fiber-free peels, consistent seal strength and minimize costs for chevron pouches.

Polyester/polyethylene, the traditional default material for chevron pouches which utilize an uncoated Tyvek®, provides challenges when trying to ensure consistently clean peels. Further, polyester/polyethylene has a narrow (approximately 10 degrees Fahrenheit) operating window with inconsistent seal strength.  Achieving seal strength targets is further complicated by the fact that the seal strength is directly proportional to the thickness of the Tyvek®.

Allegro® T, which relies on proprietary, polyethylene-based sealant chemistry, not only offers a wider operating window (approximately 35 degrees Fahrenheit), but also offers a consistent seal strength regardless of where in the temperature range the seal is activated. Because the strength of the seal is controlled by the Allegro® T chemistry, seal strength is independent of Tyvek® thickness.

The fiber-free peels provided by Allegro® T to Tyvek® are further enhanced by the same creamy white adhesive transfer that is achieved when pricier coated Tyvek® is used.  In addition to the positive visual aesthetic, Allegro® T has excellent thermal and dimensional stability, and it is also suitable for ethylene oxide or gamma sterilization.  As a result, users are able to maximize performance, while minimizing packaging costs.

Allegro® T can be extrusion-coated, adhesive laminated or can be extruded into the film depending on the application and performance requirements.

Suitable applications include a broad variety of sterile medical and pharmaceutical products which use chevron pouches.  Because the seal strength is so consistent over a broad range of temperature, pressure, and dwell settings, validating the process and statistically demonstrating a one pound/inch seal strength is easily achievable.

With manufacturing facilities near Chicago, IL, Rollprint Packaging Products, Inc. is a worldwide supplier of packaging materials for the healthcare and food industries.  The
Company offers a complete range of flexible, heat-sealable materials incorporating film, foil, Tyvek® and paper.  Structures can be designed to accommodate any sterilization method.  Available in rollstock, pouches and die-cut lids, Rollprint’s materials can meet the needs of most peelable, chemical resistant and barrier applications.

The company has also formed Alliantz Flexible Packaging Pte. Ltd., a joint venture between itself and Acme Packaging Co. (Pte) Ltd., Singapore. Headquartered in Singapore, Alliantz has been formed to serve the flexible packaging supply needs of Southeast Asia and China.

Rollprint is respected throughout the packaging industry for its heat-sealable, peelable rollstock and pouch technology, as well as its ClearFoil® ultra-high barrier transparent laminates, Allegro® peelable sealants and ClearForm® forming webs.  Rollprint has supplied flexible packaging materials into healthcare, industrial and food end-use applications for more than 50 years.Additional information can be obtained at www.rollprint.com.

Please forward sales inquiries to:
Tony Paolino
Director of Sales and Marketing
Rollprint Packaging Products, Inc.
320 S. Stewart Ave.
Addison, IL 60101
Phone: (508) 520-9784
Email: tpaolino@rollprint.com

Caption:  Rollprint’s Allegro® T sealant offers cost-effective, clean-peel solution for pouches which use uncoated Tyvek®