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Custom Packaging
Bags & Liners
Tubing & Film
Shipping Supplies
Packaging by Application
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Custom Plastic Valve Bags have an opening or Valve in one corner through which the plastic bag is filled. The valve is made with an inner flap that functions as a self-closing check valve after filling. It is available with a plain valve or with an extended inner sleeve of paper or film. If an extended "tuck-in sleeve" is used, the sleeve is manually folded down and back into the pocket under the sleeve for positive closure against shifting.
Plastic valve bags with an R Valve style are used for microscopic powders such as talc, glitter, or other tiny particles. Plastic valve bags with a T Valve are used for such products as sand, chemical resins, animal feed, and agricultural seeds. Plastic valve bags with an open mouth are the more traditional bags used for such products as dog food. We can even produce plastic valve bags with an R Valve style that are batch inclusion/low melt bags. These particular plastic valve bags are made to melt at certain temperatures and to dissolve completely. This increases productivity and reduces worker exposure to the products themselves. Using monolayer, multi-layer and co-extruded (3 layer) films, along with various options such as micro-perforations that allow products to ``breathe``, embossing patterns to keep pallet loads secure, and anti-slip materials for greater stability and stacking.
Side bottom valve pocket Bag
Features of Plastic Valve Bags
Benefits of Plastic Valve Bags
Plastic Valve Bag Styles
Application uses
Commonly Used with the Following Equipment
Agriculture
Feed
Feed & nutrition
Fertilizer (Organic / Inorganics)
Fungus Control
Insect control
Pesticides & Herbicides
Grass Seed
Wood Pellets
Chemicals
Additives
Adhesives
Carbon Black
Cat Litter
Fertilizer
Hyrdated Lime
Iron
Masterbatch
Packing Compounds
Pharmaceutical compounds
Pigments
Plastic Pellets
Powdered additives & Pigments
Resins / Polymers
Rubber
Safe-T-Salt (Brand name - Windsor) - Melts snow and ice
Titanium Dioxide (TiO2)
Zinc Oxide
Equipment used to fill Valve Bags
Air Packers / Air driven systems / Fore Flow
Auger Valve Bag Systems
Gravity Valve Bag Systems/Gravity Packer
Impeller Valve Bag Systems (Also Called Jet Flow)
Vacuum Packer
Valve Bag Applicator
Performance characteristics of different valve bags
Low Melt (temperature resistant to 110º C or 230º F) - Batch Inclusion
Standard (temperature resistant to 165º F)
Hot Filling (temperature resistant to 185º F)
High Strength (Hazardous goods)
Bag Ventilation
Slow to quick venting (usually used when packaging sand, limestone, rubber, and similar products - 1/2" x 1/2" spacing and the front is offset from the back)
Slow venting (provides a good moisture barrier & usually used when packaging fertilizer or similar products - 2" x 2" offset spacing)
Quick and clean venting (usually used with powders - only the face of the bag is vented)
Typical valve bag construction
1Poly / Plastic (Quicker production than paper)
Paper (Higher quality printing)
Paper with liner (presents a better moisture barrier / More efficient valve / Cleaner filling)
2-ply or 3-ply
One or two-ply
8"-20" widths
4" - 6.5" side gussets (1/2" increments can be specified)
12" - 35" length
4 - 6 mil film thickness
Construction
Bags for Play Sand
Bags for Play Sand
Bags for Sand
Cement Bags
Concrete Mixes
Decoratives
Fly Ash (Used in in concrete) (Known as Pulverozed fuel ash in the UK)
Grout Bags
Plaster Bags
Refractories
Stucco Bags
Stones
Aggregates
Crushed Stone
Gravel
Lava Rock Bags
Limestone
Pea Gravel
River Stone
Sand
Silica Sand
Classification according to the particular size of the product
>100 mesh (Very Fine = example would be portland cement)
100 mesh to 1/8" (Fine = example would be sand & sugar)
1/8" to 1/2" size (Granular = example would be granulated limestone or pea gravel)
> 1/2" (Lumpy = example would be stones)
Fibrous Products
Flakes
Granular
Particles
Powder
Industrial Minerals
Barite
Bentonite
Coal
Garnet
Graphite
Gypsum
Kaolin Clay
Talc
Variables at play in valve bag production
Valve geometry
Sizes of bag
Proper air evacuation
Artwork
Types of Valves
Block Style (AKA: T-Valve)
Pillow Style (AKA: R-valve - Ideal for granular products or pellets, fertilizers, food, construction industry aggregates, plastic resins, and powder paints.)
Clean Fill (AKA: B-valve)
Open Fill Bag (Ideal for fine powders, pellets, grains, food blends, specialized chemical products.)
Clean Fill Bag (Ideal for powders, grains, pellets, food, chemical products, and construction materials.)
Printing
Usually 2-3 spot colors, but more is possible.
Dry Food Products
Baking Mixes
Bird Seed
Cat Food
Cocoa
Consumer Goods
Dairy (i.e.: Milk Powder)
Dietary Supplements
Dog Food
Farm Feed
Flour
Food Blends
Grain
Premixes/Preblends
Flour Mill
Pet Food
Prepared Food
Vitamins
Rabbit Food
Rice
Salt
Spices
Sugar
Sweeteners
Petrochemical
PVC
Resins
Variables for consideration when bags are being filled with your product
Sizing
Venting
Operator training
Conveying
Palletization
Pasted valve
All custom-made products involve many production variables.
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