Como os materiais ecológicos das sacolas de papel reduzem o desperdício de plástico nas embalagens de retalho e alimentares

Walk into any supermarket or restaurant today, and you’ll see them everywhere: plastic bags. Hundreds of billions of them are used each year, most for just a few minutes before being thrown away. They don’t disappear—they break down into tiny particles that linger in our oceans, soil, and food chain for centuries.

For retailers and food service businesses, this poses a real challenge. You need packaging that works—that carries products safely, looks good, and keeps costs in check. But increasingly, customers and regulators are asking for something more.

At Nanwang, we’ve spent over a decade finding a better way. Founded in 2010, we’re the first listed company in China’s saco de papel ecológico industry (Stock Code: 301355). We make custom kraft paper bags that help restaurants and grocery stores move away from plastic without compromising on performance or brand appeal.

What Makes Paper Different

Paper starts with trees—not oil. Sourced from responsibly managed forests, it’s a resource that can regrow. When a paper bag has served its purpose, it doesn’t stick around for hundreds of years. In the right conditions, it breaks down naturally within months, returning to the earth without leaving behind microplastics.

And because paper recycling infrastructure already exists almost everywhere, these bags can be turned into new paper products instead of ending up in landfills. Europe recycles 74% of its paper packaging—a rate plastics can only dream of.

The numbers tell the story, too. When Visy compared paper cushioning to plastic bubble wrap, they found the paper version generated 34% lower carbon emissions, used 73% less energy, and consumed 39% less water over its lifetime—based on a third-party reviewed life cycle assessment.

Paper That Performs

Agora, deve estar a pensar: isso é bom para artigos leves, mas e as compras pesadas ou a comida para levar gordurosa? É uma boa pergunta.

Today’s kraft paper bags are nothing like the flimsy sacks of decades past. With over 400 sets of internationally advanced production equipment and more than 100 inspection instruments, our bags at Nanwang are engineered for real-world demands. Total assets exceeding USD 350 million back our commitment to quality.

For the messy stuff—think fried chicken or fresh produce—we’ve moved beyond the old reliance on PFAS chemicals. New treatments keep oil and moisture at bay without the environmental baggage. And by engineering paper fibers more intelligently, we’re using less material while maintaining strength, which means lighter shipments and fewer trucks on the road.

Innovations That Matter

Some of the recent advances in paper packaging genuinely surprise people.

Take bread bags, for example. For years, those little plastic windows made recycling nearly impossible. Now, nano-coating technologies make paper transparent without plastic. In Europe alone, switching bread bags to paper-based solutions could eliminate hundreds of thousands of tonnes of plastic waste every year.

Or consider barrier protection. Paper can now be engineered to keep oxygen and moisture out as effectively as plastic or aluminum—extending shelf life while remaining fully recyclable.

And handles? Paper handles that can carry up to 50 kilograms are already used today for bulk pet food and cold-chain logistics. Not prototypes—real solutions, working right now.

Proof That It Works

The best part? These aren’t theoretical possibilities. They’re delivering results today.

In the UK, frozen food retailer Iceland switched their chicken dippers line to functional barrier paper and achieved an 80% plastic reduction. Their Saco de papel de qualidade alimentar team noted that the paper runs efficiently on their existing machinery—no costly equipment upgrades required. The solution, developed in partnership with Mondi, demonstrates that sustainability and operational efficiency can go hand in hand.

Across the food industry, similar transitions are underway—from produce departments switching to paper bags for fruits and vegetables, to restaurants replacing plastic takeout bags with durable kraft alternatives. Each swap represents measurable plastic waste avoided.

Why Businesses Are Making the Switch

It’s not just about environmentalism. There’s a solid business case.

Research consistently shows that a majority of consumers prefer brands that use sustainable packaging. Paper’s natural look and feel communicates that commitment authentically—no greenwashing required. And with custom printing using non-toxic, water-based inks, your brand identity doesn’t have to take a back seat.

Regulations are also tightening. Single-use plastic bans are spreading across continents. Companies that transition now are future-proofing their operations rather than scrambling later.

And the cost gap? It’s narrowing every year as technology improves and production scales up.

Quem somos

A Nanwang foi fundada em 2010 em Quanzhou, na província de Fujian, com uma ideia simples: os sacos de papel poderiam substituir o plástico. Hoje, somos a primeira empresa cotada na bolsa no setor de sacos de papel ecológicos da China, servindo mais de 300 marcas globais em mais de 200 países e regiões.

O nosso portfólio de produtos inclui sacos de papel ecológicos, embalagens de papel para uso alimentar, sacos de tecido não tecido, etiquetas autocolantes e recibos em papel térmico. Estabelecemos filiais em Fujian, Xangai, Guangdong, Anhui, Hebei, Hubei, no Canadá e na Indonésia, o que nos permite servir os clientes onde quer que se encontrem.

A qualidade está presente em tudo o que fazemos. Temos certificação ISO 9001, ISO 14001, ISO 45001, ISO 22000, FSC-COC, BRCGS (Grau A+) e Sedex (4P). Estas não são apenas certificações — são a forma como trabalhamos todos os dias.

A nossa equipa técnica de I&D investe mais de 7 milhões de dólares anualmente, o que resultou em 94 patentes nacionais registadas (incluindo 11 patentes de invenção) e 5 patentes internacionais. Desenvolvemos 14 tecnologias de ponta líderes no setor, desde a fixação automatizada de alças até à impermeabilização de sacos de papel.

Fomos reconhecidos como Empresa Nacional de Alta Tecnologia, Empresa Nacional de Demonstração de Fabricação Orientada para os Serviços e PME da província de Fujian classificada como «Especializada, Sofisticada, Distinta e Inovadora». Durante sete anos consecutivos, figurámos entre as 100 Melhores Empresas de Embalagem e Impressão da China.

Talvez o mais importante seja o facto de termos ajudado a elaborar 11 normas nacionais e setoriais para embalagens de papel — incluindo normas para copos de papel, palhinhas de papel e materiais em contacto com alimentos. À medida que o setor evolui, estamos a ajudar a definir o rumo a seguir.

Perspetivas para o futuro

Here’s what we know: an 80% reduction in plastic for frozen food. Handles that carry 50kg. Barrier protection that rivals plastic. These aren’t distant goals—they’re already happening.

The transition from plastic to paper is underway. For restaurants and retailers, it’s an opportunity to reduce waste, meet customer expectations, and build a brand that stands for something real.

Em Nanwang paper bag manufacturers in china, we’re guided by a simple mission: “Greener Packing, Better World.” We believe that packaging can serve human needs without compromising planetary health.