Polyethylene Bags

A polyethylene bag is industrial packaging made from PE film or resin, valued for its moisture resistance and durability when packaging granular and fine powder products. Southern Packaging offers polyethylene packaging in several formats, including block-bottom valve bags, open-mouth bags in four construction types, and rollstock/FFS bags for automated packaging systems - serving industries from agriculture and food processing to chemicals and construction.

Polyethylene (PE) bags are typically used as film-based packaging - valve bags, open-mouth bags, and liners - and offer strong moisture resistance, making them well suited for granular and fine powder products. Polypropylene (PP) bags are generally woven for greater tensile strength and are commonly used for heavier or more abrasive bulk materials, such as woven polypropylene bags for grain, feed, and agricultural products. The right material depends on your product's weight, moisture sensitivity, and handling requirements - our team can help you choose between the two based on your specific application.

Southern Packaging provides a comprehensive selection of polyethylene packaging solutions including polyethylene valve bags (both standard block-bottom and batch-inclusion varieties), open-mouth bags in four construction types (sideweld/side-seal, flat tube/tubular bottom seal, gusseted, and back seam), and rollstock/FFS (Form, Fill & Seal) bags. These options cater to diverse industrial needs from food processing to chemical manufacturing.

Block-bottom valve bags are filled through a self-sealing valve, giving them a flat, stable bottom ideal for palletizing and high-speed automated filling. Open-mouth bags are open at the top for filling and are available in four construction types - sideweld/side-seal, flat tube/tubular bottom seal, gusseted, and back seam - each closed differently depending on the application. Valve bags are generally preferred for granular and fine powder products requiring a sift-resistant, self-sealing closure, while open-mouth bags offer more flexibility for products of varying size and shape across agriculture, food processing, chemical, and building materials applications.

Our premium polyethylene block bottom valve bags feature a flat stable bottom, self-sealing valve, and sift-resistant construction. They're manufactured from virgin PE resin with options for 4.0-7.0 mil film thickness, micro-perforated breathable fabric, sanded anti-skid embossing, and multiple closure types (sonic seal, tuck-in, or standard internal sleeve). These durable bags are fully recyclable and available with UN certification.

A batch-inclusion bag is a specialized polyethylene valve bag made from low-melt polyethylene resin, designed to be added directly into a mixture during manufacturing without opening or emptying the bag. The bag itself melts at a controlled melt point of 100C-108C, dispersing its contents uniformly into the mixture. This eliminates product loss and contamination while minimizing personnel exposure to hazardous materials - making batch-inclusion bags a common choice for chemicals like Carbon Black and Titanium Dioxide in the paint, rubber, and tire manufacturing industries.

Our polyethylene block bottom valve bags are available in 4.0 to 7.0 mil film thickness, and the right choice depends on your product's weight, abrasiveness, and the level of puncture or tear resistance your handling process requires. Heavier or coarser materials generally call for thicker film, while lighter, less abrasive products may perform well with a thinner gauge. Our team can help match the right mil thickness to your specific product and filling equipment.

Yes. UN Certification is available on our polyethylene block bottom valve bags, making them suitable for packaging hazardous materials that require UN-specification packaging.

We offer extensive customization including 1- to 8-color printing, labeling/lot number printing, custom film colors for product identification, metalized films, and high-gloss lacquer finishes. Our rollstock/FFS bags can feature up to 10-color printing with options for nano-perforation, anti-skid embossing, and custom coefficients of friction.

Our polyethylene packaging serves numerous industries including agriculture, food processing (using FDA/USDA approved materials), chemicals, pharmaceuticals, building materials, construction, petrochemicals, and consumer goods. The bags are particularly valued for packaging dry, flowable products requiring moisture resistance and durability.