Resealable Poly Bags

Companies have been reusing several production bags, meaning that they spend less as they make use of their trash. One of the most common things that they recycle is the resealable poly bag. In addition to this, manufacturing companies mainly use resealable poly bags on packaging their items.

Resealable poly bags are also commonly known as Ziploc bags and reclosable poly bags. These are bags that can be easily opened and closed. As a whole, resealable bags can be used for food and non-food items. If used for food, it will be fresh since you can seal and reseal the bag.

Resealable bags are also considered safe for use. These types of poly bags are freezer safe and acid free. In terms of the non-food items, it is also better to use resealable poly bags. These items are protected from dirt and dust, and moisture will not penetrate the bag as long as it is properly sealed. With the clear bags, you can easily identify the items inside.

Different sizes work for different items. There are heavy duty resealable poly bags that can be used for heavy duty items such as spare parts and the like. As long as the resealable poly bag is intact, you can still continue using it.

by Adam Effiel

Poly Bag Types

Flat Poly Bags or Clear Poly Bags

clear poly bags

Each flat bag has three dimensions. The first measurement is the width across the opening of the bag. The length runs from the bags opening to the base of the bag. Gauge is the third figure in a bags dimensions. It is a measure of its thickness in mils (1 mil bags, 2 mil bags, 3 mil bags, 4 mil bags, 6 mil bags and act).

Reclosable Poly Bags or Zipper Poly Bag

ziplock poly bag

The signature red line along the top of the bag identifies the best reclosable bags in the industry. These bags employ a reinforced side-welded zipper to lock in a single smooth motion. These reclosable bags are durable enough to be used many times.

Gusseted Poly Bags

gusseted poly bags

• Side gussets provide extra room for irregularly shaped items.
• Bags feature expandable sides and a fitted bottom.
• Clear bags meet FDA and USDA requirements.
• Dimensions listed are the interior usable space of the bag.
• Close bags with twist ties, bag tape or impulse sealers.

Poly bags materials

• Low-Density Polyethylene (LDPE).
• Linear Low-Density Polyethylene (LLDPE).
• High-Density Polyethylene (HDPE).
• Polypropylene.
• Ultraviolet (UV) Protective.
• Corrosion Resistant.
• Opaque.
• Other Specialty Films

Material Characteristics

Low-Density Polyethylene (LDPE) Film
LDPE exhibits excellent resistance to diluted and concentrated acids, alcohols, bases, and esters. LDPE bag-packaging benefits include its durability, versatility, cost-effectiveness, and excellent printing characteristics.

Linear Low-Density Polyethylene (LLDPE) Film
LLDPE can be made into thinner-gauge films than LDPE, with better resistance to environmental-stress cracking. Other LLDPE advantages over LDPE include better hot tack and seal strength, higher stiffness, and improved puncture resistance and tear strength.

High-Density Polyethylene (HDPE) Film
HDPE has higher tensile strength than LDPE. This film also has a high degree of scratch resistance. The benefits of HDPE for bag packaging applications include clarity, reduced chemical additives, scratch resistance, and good permeability. Polypropylene Film. Polypropylene provides superior clarity and strength for retail bag packaging. This high-strength, multilayer, smooth-surface film exhibits low haze properties and a high oxygen transfer rate (OTR) that resists odor seepage.

Ultraviolet (UV) Protective Films
UV protective films protect bag contents from damage and degradation. Translucent and opaque materials provide high UVA and UVB protection as well as strength and machinability. Applications for such material include pharmacy fulfillment, unit-dose packaging, and medical and security applications.

Rust/Corrosion Inhibitor Films
Rust/corrosion-inhibitor films protect bag contents from rust and tarnish without the need for costly coatings.

Opaque Films
Benefits also include barrier resistance.

Other Specialty Films
Some poly bags require films with unique, application-specific performance. Examples include biodegradable films, embossed films for scratch resistance, and low-temperature films for very cold or frozen environments.

Also, check out other information on Bulk Packaging.