PT Blog

We’ve reported on stretch film, t-shirt bags, institutional can liners , and shrink film in previous installments of this blog series, which provide snap shots of the results of 2017 research conducted by market-research firm Mastio & Co., St. Joseph, Mo. on the PE film industry. Here, we recap Mastio’s research on consumer can liners.

The consumer trash bag market can be divided into the categories of national brand, private label, and generic market segments, the Mastio study notes. All three types of bags can be purchased by consumers in a variety of places including grocery stores, mass merchandise stores, and discount stores. National brand and private label bags are usually sold at a higher price than generic bags. Typically, there is very little, if any, advertising to promote the generic bags, further helping to lower the costs to consumers.

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Molded-in threaded inserts can be a great option for plastics processors looking for reusable threads in thermoset or thermoplastic applications. When strength requirements are a top priority, molded-in applications offer the best pull-out (resistance to the insert pulling out of the part) and torque performance (resistance to the insert twisting in the part when the mating fastener is torqued) for metal threaded inserts.

This insert type accomplishes the best overall bond when used with the right application. Here’s what to consider…READ MORE.

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Over three days in Long Beach, Calif. the Hilton Hotel will pack in some of plastics injection molding’s most preeminent minds at Molding 2018. If you have a nagging molding problem, there is a speaker, exhibitor, sponsor or fellow attendee who can guide you to the solution.

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Our February 2018 issue includes an article on SABIC (U.S. office in Houston) with a focus on the company’s development of an arsenal of specialty products based on its engineering resins that are optimized for a range of additive manufacturing (AM) processes (aka 3D printing) and which meet the end-use performance requirements of highly-regulated industries such as aerospace and healthcare.

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By: Garrett MacKenzie 12. February 2018

Molding with Nylon: Tips & Tricks

One of the trickiest materials to mold with is nylon. The material itself has great molded-in properties, such as strength and, when used properly, visual aesthetics. Using the material itself, however can sometimes require a strong processing approach to prevent variations and defects. Nylon processing does not have to be frustrating, and by applying some basic molding rules, you can prevent processing headaches.

This article will address some common problems that occur in nylon molding. It will identify many of the normal molding conditions that are common with this material, as well as provide some insight into processing approaches that can help to reduce, and even eliminate scrap events.

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