Latest News and Updates from Sunkey Packaging

Shrink film is a thin and bendable material. It wraps tightly around things when you use heat. You mostly see it used in food packaging. It also protects items in cosmetics, medicine, and electronics. Sunkey Packaging is a leader in making new shrink packaging ideas. They focus on quality and being Read More

The main types of meat packaging are:Cling film is used for fresh meats and semi-finished products.Tray packaging is for chilled meats and cooked meats.Vacuum packaging helps stop meat from spoiling.Modified atmosphere packaging keeps meat fresh longer.Vacuum shrink packaging works for many kinds of Read More

You see many kinds of pet food packaging material in stores today. The most common types are:PlasticAluminumPaper and cardboardBiodegradable plasticsThe pet food packaging material you choose can impact safety, freshness, and environmental friendliness. Flexible plastic material keeps food safe from Read More

Baby food is among the most regulated food categories globally — and for good reason. The consumers are infants whose immune systems are still developing, whose gut flora is immature, and who cannot communicate distress or illness the way adults can. A packaging failure that causes contamination or premature spoilage carries consequences far more severe than in adult food categories. Read More

Choosing the wrong retort pouch size is among the most common — and most costly — mistakes in flexible packaging development. An undersized pouch fails fill weight targets or ruptures during retort due to over-pressurization. An oversized pouch creates excessive headspace, increasing oxygen load on the barrier layer and reducing shelf life. Read More

Seafood is among the most demanding product categories for retort packaging — combining high water activity, volatile aroma compounds, naturally occurring enzymes, and FDA-regulated pH thresholds that determine which sterilization protocol applies. Getting the material structure, F₀ target, and sealing parameters wrong does not just mean a shorter shelf life: it means a potential food safety recall. Read More

The retort pouch was not born in a supermarket — it was engineered for war. Today, the same technology that feeds soldiers in combat zones underpins a global flexible packaging industry valued at USD 5.55 billion in 2024 and growing at 7.0% annually. Understanding military-grade MRE pouch specifications gives food manufacturers a benchmark for the highest level of retort packaging performance commercially available. Read More

When considering which type of stand up pouch is best for coffee, it’s essential to focus on features that preserve freshness and quality. The right stand-up pouch will protect your coffee, tea, or dry foods from moisture, oxygen, and light. Key factors to evaluate include the pouch material, barrie Read More

Choosing between stick pack and sachet packaging depends on your product and how you want people to use it. If you sell consumer packaged goods, you need safe packaging that is also easy for consumers to use. Sunkey Packaging can assist you in making the right choice between stick pack vs sachet pac Read More

In October 2020, Amcor and Nestlé announced what they described as the world's first recyclable flexible retort pouch. The product — an all-polypropylene structure using Amcor's AmLite HeatFlex technology — was certified recyclable in Germany, Austria, Italy, Norway, and the Netherlands. Read More

For the past decade, the packaging industry has been told that chemical recycling will solve the problem that mechanical recycling cannot: the end-of-life challenge of multilayer flexible packaging. Aluminum foil retort pouches, multilayer snack bags, lidding films — the complex, mixed-material structures that preserve food — cannot be processed in mechanical recycling streams. Chemical recycling, the argument goes, can handle these materials and close the loop. Read More

Open any wet pet food pouch with a clear window, any transparent ready-to-eat meal, or any microwaveable retort pouch, and you are almost certainly holding a product whose shelf life depends on a thin layer of EVOH — ethylene vinyl alcohol copolymer. The layer is typically 5–15 micrometers thick, invisible to the eye, sandwiched between layers of polyethylene or polypropylene. Without it, oxygen would permeate the package and spoil the contents within days. Read More

It is the early 1950s. The US Army's Quartermaster Food and Container Institute in Natick, Massachusetts — the division responsible for feeding soldiers in the field — faces a persistent logistical problem. Metal cans work, but they are heavy, bulky, and slow to heat. A 24-can case of C-rations weighs over 20 kg. Every kilogram of packaging is a kilogram a soldier must carry. Read More

Artwork rejection is the single most common cause of production delays in retort pouch manufacturing — a rejected file adds 2 to 4 weeks to your timeline before a single pouch is produced. Unlike standard flexible packaging, retort pouches undergo 121°C or 135°C sterilization cycles that impose strict constraints on ink chemistry, laminate structure, and color registration that most general packaging design guidelines do not cover. Read More

A structured procurement guide for supply chain and quality teams — covering the six evaluation dimensions, mandatory certifications, on-site audit checklist, compliance documentation requirements, and the eight red flags that should halt any qualification process. Read More

The definitive specification guide for RTE food manufacturers — mapping product density, retort temperature, and format requirements to laminate structures, seal parameters, and compliance documentation. Read More