Innovative Packaging Solutions for Food Businesses
About BULKBUY PACKAGING
Leading packaging manufacturer with expertise in sustainable food packaging solutions since 2010. Committed to quality, innovation, and customer satisfaction.
Industry Overview
The food packaging industry has seen remarkable transformation in recent years, with the global greaseproof packaging market projected to reach $3.8 billion by 2028 according to Food Packaging Forum research. This growth is largely driven by increasing demand for sustainable, functional packaging solutions that ensure food safety while reducing environmental impact.
Within this landscape, Printed Greaseproof Bags 250 x 250mm (10 x 10") (Brown / Unstrung) have emerged as a preferred solution for food businesses. These specialized bags offer excellent barrier properties against oils and greases while maintaining breathability to keep baked goods fresh.
Traditional plastic packaging solutions are being rapidly replaced by paper-based alternatives as consumer preferences shift toward sustainable options. Printed Greaseproof Bags 250 x 250mm (10 x 10") (Brown / Unstrung) represent a perfect blend of functionality and environmental consciousness, meeting both regulatory requirements and consumer expectations.
Product Introduction
Printed Greaseproof Bags 250 x 250mm (10 x 10") (Brown / Unstrung) are specifically engineered to meet the demands of food service businesses requiring reliable packaging for oily or greasy products. These bags feature:
- Specialized grease-resistant paper composition
- Natural brown color with customizable printing options
- Unstrung design for versatile filling options
- Perfect dimensions for baked goods and snacks
- Eco-friendly and compostable materials
Key Applications
Printed Greaseproof Bags 250 x 250mm (10 x 10") (Brown / Unstrung) serve multiple industries and applications:
Food Service & Retail
Bakeries, cafes, and patisseries use these bags for packaging cookies, pastries, muffins, and donuts. The 250x250mm size is ideal for standard portion sizes while the greaseproof nature protects against oil absorption, maintaining product freshness and appearance.
Specialty Food Packaging
Artisanal food producers prefer these bags for packaging oily snacks such as roasted nuts, fried chips, or oil-infused baked goods. The unstrung design allows various closure options including folding, stapling, or tying.
Takeaway & Delivery Services
Food delivery services benefit from these bags' durability during transport. The grease resistance ensures packaging integrity even with hot, oily foods while the printable surface provides branding opportunities.
Technical Specifications
| Parameter | Value | Testing Standard | Description |
|---|---|---|---|
| Dimensions | 250 × 250 mm (10" × 10") | ISO 536 | Internal dimensions when laid flat |
| Material | High-Grade Greaseproof Paper | ISO 535 | 65-70 gsm basis weight |
| Grease Resistance | Grade 4 (Highest) | TAPPI T454 | 24-hour resistance without penetration |
| Porosity | 15-25 ml/min | ISO 5636-3 | Controlled breathability |
| Tensile Strength | MD: 4.5 kN/m CD: 2.3 kN/m | ISO 1924-2 | Machine Direction & Cross Direction |
| Food Safety | FDA & EU Compliant | EC 1935/2004 | Suitable for direct food contact |
| Moisture Barrier | 20-25 g/m²/24h | ASTM E96 | Water vapor transmission rate |
| Printing | Flexographic up to 5 colors | ISO 2846-1 | Custom logo/branding available |
Manufacturing Process
The production of Printed Greaseproof Bags 250 x 250mm (10 x 10") (Brown / Unstrung) involves specialized processes:
Pulp Refining: Cellulose fibers undergo extended beating to increase fibrillation, creating densely packed fibers that naturally resist grease penetration without chemical treatment.
Calendering: Paper passes through high-pressure rollers that flatten fibers and close pores, enhancing both barrier properties and surface smoothness for printing.
Converting: Precision cutting and folding equipment creates the signature 250x250mm dimensions with reinforced bottom folds that withstand packing pressure up to 3kg.
Performance Advantages
The unique properties of Printed Greaseproof Bags 250 x 250mm (10 x 10") (Brown / Unstrung) provide distinct advantages:
Extended Product Freshness: Natural breathability regulates moisture exchange, preventing condensation while maintaining crispness in baked goods.
Structural Integrity: Reinforced construction maintains shape even with heavy or greasy contents, resisting collapse during transport and display.
Brand Enhancement: High-quality printing surfaces turn functional packaging into powerful marketing tools with custom designs, logos, and product information.
Environmental Profile: Fully recyclable and compostable under industrial conditions, these bags significantly reduce plastic waste compared to traditional alternatives.
Expert FAQ
The grease resistance is achieved through mechanical processing that densifies the paper structure, not chemical treatments. Extended refining increases fiber fibrillation which creates a tighter mesh that naturally blocks oil molecules.
Unstrung designs offer flexibility for different closure methods. Businesses can choose to fold, staple, tie, or use custom closures based on their products and branding requirements. This reduces packaging complexity and accommodates irregularly shaped items.
Controlled porosity between 15-25 ml/min creates the ideal microclimate. This allows excess moisture to escape while preventing excessive drying, maintaining the perfect texture for products like cookies and pastries for up to 5 days.
Yes, when properly closed they withstand temperatures down to -18°C. The paper's breathability prevents condensation buildup that causes freezer burn, protecting product quality during long-term frozen storage.
True greaseproof paper outperforms plastic-coated options in breathability and environmental profile while offering comparable grease resistance. Unlike plastic coatings, paper maintains its barrier properties through freezing/thawing cycles without cracking.
Flexographic printing provides optimal results for paper surfaces. This technique accommodates the slight texture of greaseproof paper while providing precise registration for multi-color designs. Metallic inks create especially impressive visual effects.
Always check for FDA 21 CFR 176.170 compliance for direct food contact, BfR recommendations for paper packaging, and ideally ISO 22000 certification covering the manufacturing process. Compostability certifications like EN 13432 validate environmental claims.
Industry References
https://www.foodpackagingforum.org/reports/greaseproof-papers-market
https://onlinelibrary.wiley.com/journal/10991242/recent
https://www.international-bakers.com/technical-papers
https://www.journals.elsevier.com/journal-of-food-engineering
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