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Ziplock Bags with Recycled Content – PCR LDPE with GRS Certification

Ziplock bags with a defined PCR recyclate content – GRS-certified. A concrete recycling rate, clean documentation, verifiable for marketing and ESG audits.

Further variants in this packaging family: ziplock bags overview, sustainable ziplock bags and transparent ziplock bags – each with its own specialisation in material, format or application.

Related ranges for other application areas: sustainable packaging, sustainable flat bags and flat bags with recyclate content.

Packaging direct from the importer since 1972 – fast shipping, transparent quantity-based pricing and free samples before your first order.

01

What are ziplock bags with recycled content?

Ziplock bags with recycled content contain post-consumer recyclate (PCR) – that is, LDPE granulate from the household recycling stream – which, after industrial reprocessing, is turned back into film. The decisive difference from classic recyclate films made from industrial recycling: PCR comes from the consumer loop (kerbside collection, DSD), and therefore closes the loop where most packaging actually arises – at the end consumer.

The recycled content is precisely defined and seamlessly verified by the GRS certificate (Global Recycled Standard). Typical content in our range is 50% PCR. The higher the content, the more visible the recycling aspect – although the film loses a little of its see-through appearance as the recyclate ratio rises, since recyclate can look slightly yellow-grey and flecked. For marketing purposes this is often even desirable, because it underlines the authenticity of the recycling.

Our ziplock bags with recycled content are available as an industrial variant (for non-food applications). The closure function remains identical to standard stock – our suppliers have adapted the sealing parameters for PCR films, so that even at 80% recyclate content the bags still close reliably. Printing is possible with mineral-oil-free printing inks, in order to preserve recyclability after use.

02

What are PCR ziplock bags suitable for?

  • Brands with recycling marketing: “X % from recyclate” as a substantiated advertising claim
  • Companies subject to ESG reporting: GRS certificates as audit evidence
  • Industrial ranges: screws, workshop accessories with a sustainability commitment
  • Direct-to-consumer marketing: a visible sustainability signal on the shipping packaging
  • Public procurement: municipalities and authorities with recycling requirements
03

Which PCR ratio is the right one?

  • 30% PCR: entry-level recycling rate, cost-efficient, clearly visible marketing effect
  • 50% PCR: a balanced middle path between recycled content and film clarity
  • 100% PCR: maximum recycling rate, visibly sustainable brand positioning
  • Industrial variant: PCR for non-food applications, cost-optimised
  • GRS-certified: Global Recycled Standard with gap-free supply-chain proof
  • Film thickness: 50, 70 and 90 microns available depending on load requirements
  • With or without labelling panel: depending on your storage and marketing concept
04

Your benefits with PCR ziplock bags from Elke Plastic

We have been importing packaging bags since 1972 and have followed the market for PCR films from the very start. For you, that means verifiable recycling ratios instead of marketing platitudes. On request, we supply GRS certificates, supply chain documentation and detailed material data sheets. This allows you to substantiate your recycling claims in any ESG audit or supplier check – without the risk of a cease-and-desist over vague "recycled" promises.

PCR films place particular demands on heat sealing. Recyclate behaves slightly differently when melting than virgin material – the sealing temperatures have to be adjusted slightly. Our suppliers have adapted this in production, so that the closure function and tightness are identical to standard stock. If you have your own filling processes, we advise you on the correct sealing parameter settings.

Shipping is from our German warehouse. PCR standard sizes are usually in stock; individual ratios or printing are arranged on a case-by-case basis within the delivery time window. All customers – B2B and B2C alike – receive volume pricing directly in the order table (no minimum order value), and GRS certificates on request. Free samples are a matter of course – test the appearance and closure quality in advance.

08

Shipping & terms

Shipping from our German warehouse. PCR standard sizes are usually in stock; individual recycling ratios and printing are arranged on a case-by-case basis within the delivery time window. All customers – B2B and B2C alike – receive volume pricing (no minimum order value). GRS certificates and free samples via our enquiry form.

Frequently asked questions about ziplock bags with recycled content

What is PCR recyclate?

PCR stands for post-consumer recyclate: plastic recovered from the consumer waste stream (the German “Gelber Sack” kerbside collection, DSD), reprocessed and made into film again. Unlike industrial (post-industrial) recyclate, PCR closes the loop where most packaging arises – with the end consumer. For marketing claims, PCR carries more weight than industrial recyclate.

What does GRS certification mean?

GRS stands for the Global Recycled Standard, the leading international certification for recycling rates. It provides gap-free proof of where the recycled raw material comes from, how it was reprocessed and what proportion is contained in the final product. For ESG audits, GRS is usually a mandatory proof.

Which PCR content should I choose?

For marketing visibility, 30% is often enough – it is easy to communicate without the film losing its clear appearance. For maximum recycling impact, 100% is the highest available on the market. 50% is a good middle path that balances recycling impact with film clarity.

Are PCR bags food-safe?

No. Currently all rLDPE variants are still in the testing phase for food-contact suitability.

Does PCR impair the closure function?

No, provided high-quality formulations are used. Our suppliers have adapted the sealing parameters for PCR films so that the ziplock closure function and tightness are identical to standard products. The closure quality is maintained even after several hundred opening-and-closing cycles.

What does a PCR film look like?

30% PCR film looks almost like standard clear material with a minimal tint. 50% PCR shows a slight grey tint. 100% PCR films are visibly discoloured yellow-grey and partly flecked with small coloured spots (remnants of the original colours). Many brands use this deliberately as an authentic recycling signal.

Can I print PCR bags with a logo?

Yes, custom printing is available. For recyclability we recommend mineral-oil-free printing inks. GRS logos may be printed on, provided the certificate is in place. Against a coloured PCR background, light printing inks work best.

What am I allowed to communicate on the packaging?

Clearly substantiated facts: “from X % recycled material (PCR)”, “GRS-certified”, “from kerbside collection”. Avoid vague wording such as “recycled” without a figure, “eco” or “green” – these are legally risky and little valued by end consumers.

How does PCR differ from sustainable bags?

PCR is one specific sustainability strategy (recycled material). Under “sustainable” we group together all environmentally friendly variants: PCR, bio-PE and mono-material. If you want to communicate a specific recycling rate, choose PCR. If you are looking for the broader sustainability narrative, also consider bio-PE and mono-material.

Are PCR bags recyclable via kerbside collection?

Yes. Like conventional LDPE, PCR-LDPE is recyclable in the PE stream via kerbside collection (the German “Gelber Sack”). For full circularity we recommend printing the resin code (PE-LD).

Which order quantities make sense?

Stock items in standard sizes with a 50% PCR content are available ex-stock. Higher contents or custom printing become worthwhile from larger quantities. We advise on order-quantity calculations and quantity-based pricing.

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