Flat Bottom Aluminum Foil Bag

A flat bottom aluminum foil bag,also known as an eight-side seal foil pouch,is a premium flexible packaging solution integrating high-barrier aluminum foil laminate and a stable flat-bottom structure.Designed for superior product protection and shelf visibility,it has become a top choice for high-end food,nutraceuticals,and sensitive goods packaging.

Structure&Material

Crafted from multi-layer food-grade laminates,the typical structure is PET/AL/LDPE(3-layer)or PET/NY/AL/LDPE(4-layer):

Outer PET Layer:Provides printability,scratch resistance,and structural strength.

Aluminum Foil Core(7–12μm):Acts as an impenetrable barrier against light,oxygen,moisture,and odors,ensuring nearly zero permeability.

Inner PE/CPP Layer:Enables heat sealing and food-safe direct contact.

Optional NY Layer:Enhances puncture resistance for heavy or sharp-edged products.

Key Features

Stable Flat-Bottom Design:The eight-side seal structure delivers a flat,rigid base that stands upright unaided,maximizing shelf presence with a 5-sided printable area.

Ultra-High Barrier Performance:90%light-proof,with extremely low oxygen and moisture transmission rates,effectively extending shelf life by 2–3 times compared to regular plastic bags.

Customizable Functionalities:

Resealable zippers for repeated use and freshness retention.

One-way degassing valves(ideal for coffee beans to release CO₂while blocking air).

Tear notches,hang holes,and custom printing(CMYK/PMS,glossy/matte finish).

Durability&Safety:Puncture-resistant,tear-proof,and compliant with FDA,ISO 9001,and 100,000-level cleanroom standards.

Core Applications

Food&Beverages:Coffee beans/ground coffee,loose tea,nuts,dried fruits,spices,and gourmet snacks.

Pet Care:Premium dry pet food,treats,and supplements.

Nutraceuticals&Cosmetics:Protein powder,herbal extracts,and light-sensitive skincare products.

Pharmaceuticals&Chemicals:Medical reagents,electronic components,and industrial chemicals requiring strict barrier protection.

Advantages Over Traditional Packaging

Better Freshness:The aluminum foil core locks in aroma and flavor,preventing oxidation and moisture damage.

Cost-Effective&Lightweight:Lighter than rigid containers(e.g.,glass,tin),reducing shipping costs and storage space.

Brand Enhancement:Large printable surfaces and premium metallic appearance elevate brand image on retail shelves.

Eco-Friendly:Fully recyclable(aluminum foil is infinitely recyclable)and reduces plastic waste compared to multi-layer non-recyclable packaging.

Specifications

Thickness:80–200μm(customizable).

Size:Custom dimensions(common:250g,500g,1kg,2kg).

Color:Silver(natural foil),matte/glossy black,gold,or custom Pantone colors.

MOQ:Typically 10,000–30,000 pieces(negotiable for small batches).

Flat bottom aluminum foil bags combine exceptional protection,practical functionality,and premium aesthetics,making them the ideal packaging solution for products that demand both quality preservation and standout shelf appeal.