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Does West’s Packaging Services offer technical support?

Yes. West’s Packaging Services have key people who are very experienced in a range of areas. Our Quality Assurance / Technical Manager brings over 15 years experience in the flexible packaging industry to West’s Packaging ervices.

Does West’s Packaging Services inspect and test its products?

Yes. West’s Packaging Services perform online production testing and record these details every 15 minutes. West’s Packaging Services also has a laboratory for testing its products. Equipment used include: GC for retained solvents, slip testing (COF), seal testing, digital micrometer and bond strength testing.

Does West’s Packaging Services have a certified QA Management system?

Yes. West’s Packaging Services is ISO 9001-2008 accredited. ANZSIC CODE: 2563, Registration number 2260

Does West’s Packaging Services have a laboratory?

Yes. We run a very thorough Q/A lab. Refer QA page for detail

What are barrier properties?

Barrier properties are the preventative characteristics of the material. They are the components of the flexible material that protect the product packaged from Water (vapour) and Oxygen. Barrier Properties are tested by testing the transmission of water and oxygen through the flexible material. Tests conducted are called Water Transmission
Rate (WTR) and Oxygen Transmission Rate (OTR).

I want a form of packaging that is new / different to my competitors, can West’s Packaging Services offer me the support to develop a specific product to suit my purpose?

Yes. West’s Packaging Services can with its vast experience in manufacturing of flexible packaging and our very knowledgeable sales and marketing staff, we can assist with your special packaging requirements. Please contact our National Sales Manager for further assistance. j.ahern@westspackaging.com.au

Does West’s Packaging Services have an implemented pest control program?

Yes. West’s Packaging Services have a class “A” food grade pest control program which is run and monitored by PestAway Australia, Melbourne. Commencement date 2001

Does west’s packaging services have a certified QA system?

Yes WPS operates a quality system that complies with the requirements of ISO 9001:2008 Quality Management system – Requirements. ANZSIC CODE: 2563. Copy of certificate attached.

Does WPS have an implemented pest control program?

Yes WPS have a class “A” food grade pest control program which is run and monitored by Pest Off Control of Melbourne. Commencement date 2001.

Does WPS have documented specifications for all products?

Yes WPS have specifications for all its product range.

Does WPS inspect and test its products?

Yes WPS perform online production testing and record these details every 15 minutes.wps also has a laboratory for testing its products. equipemtent used: GC for retained solvents, slip testing (COF), seal testing, digital micrometer and bond strength testing.

Does WPS hold stock manufactured pouches and bags?

Yes WPS carry a range of pre-made pouches and bags, various sizes of vacuum pouches, stand up pouches, side gusset bags, Bopp bags, coffee bags and stand up pouches plain or printed and plan rewind Please refer our Online Store and Packaging Products

What products do WPS make?

WPS manufactures a range of pouches, bags and rewind with a range of features which includes the following. vac pouches, metalised and foil pouches,stand up pouches with and without zipper or slider,coffee bags gussetted or stand up with or withour breather valves,cookin bags,retortable pouches stand up or 3 side seal,embossed pouches
,medical pouches,chevron medical pouches,polypropelene bags,rewind plain or printed,quad seal bags,spout pouches or
bags,coffee breather valves,slider pouches and shaped pouches or side seal. Our range is increasing so please ask us if your product is not in this list.

What packaging materials do WPS use?

WPS use a range of laminated materials; we carry a range of plain laminated materials from which we slit down for our customers requirements, foil and metallised films, polyester laminates, nylon co-ex films, Bopp films, paper foil laminates, retort grade clear and foil laminates. Each customer requires different films. WPS can supply specific laminates to suit each application. Please refer our Materials Page or Contact our National Sales Manager j.ahern@westspackaging.com.au

What special features do WPS offer on there pouchest

WPS can provide a range of features which include the following. Shaped pouches, Slider pouches, press to close zipper pouches, tear notches, round or euro and multiple hole punches. laser scoring, spouts, breather valves and handle punching.

Are the film WPS use food grade approved

Yes WPS only use food grade approved material. A specification sheet will be provided which clearly states the approval details.

Does WPS make to order?

Yes WPS are able to make any size pouch or bag to order from all laminates.

What is the difference between Rotogravure and Flexographic printing processes?

Flexographic printing is a method of using rubber printing plates mounted on a cylinder of various repeat lengths which is inked by a roll carrying fluid ink. For every revolution of the printing plate cylinder an image is roduced.

Rotogravure printing is a newer technology that relies on engraved individual cylinders to produce the printed image.

Each option has certain advantages, (Flexographic is great for smaller quantity runs and generally is cheaper where Rotogravure produces better quality images) but recent advances in pre-press cylinder engraving technology has allowed us to deliver “gravure” quality at “flexo” prices.

We aren’t sure what material to use for our printed bags, how can you help us?

We have sales people with experience who will work with you every step of the way, depending on your product we will advise you of the best film structure to use.

I need a high quality printed bag that also protects my product from moisture, can you help us?

Absolutely, this entails choosing the right barrier film to use and then choosing the printing process to fit your needs (Flexographic versus Rotogravure).

What is the first step for bag printing once i approve quote?

Please contact us and we will provide you with a dieline to place your art into that is size correct.

Which is better, Rotogravure or Flexographic printing?

Depends on the particular application…is this a high end retail product where the print quality can affect the sales or is this an industrial application that is simply to identify the product Use Rotogravure printing for high quality and high resolution printing and Flexographic printing for basic applications.

How many bags do we need to order to get a custom printed bag?

We have the unique ability to print as little as 5000 bags on our flexographic press. Gravure presses have minimum quantity of at least 6000M.

Can WPS create artwork?

Yes, WPS can create your artwork. We have a talented Graphic Designer as part of our team. Please contact us for quote to create artwork.

What format must art be supplied?

Electornic format, vectored illustrator files with all pictures and font linked. Please contact our prepess department if you have any questions

BOPP bag (POLYPROPYLENE BAG)

Commonly used for: Side Gusset Bags, header Seal Bags, bottom Bags, lap seal and Back seal
Technical Name: Biaxially Orientated Poly Propylene
Description: smooth, slightly shiny in appearance, clear but can be printed. This material is commonly used in a range of markets.
Material is low barrier.
Can be used independently or can be used in 2 ply and 3 ply laminates i.e. BOPP / LLDPE or BOPP / METPET / LLDPE
Can be manufactured to any size with a range of option which include round hole punch, euro slot and tear notch.
Used for packaging Pasta, Confectionery, Muesli, powders, spices, nuts and general food stuffs.

Quad seal bag

Description: A bag with parallel side gussets with gusset seals. A side gusset bag that is made with the 4 edges of the gusset sealed.
Top or bottom sealed bag with side gussets.
Side gussets open to allow extra volume inside bags.
Once filled the bag blocks out.
Can be used for Food, Coffee and Tea, Pet Foods, Dairy products, Confectionery, Powders, Horticultural products, Mining, wine bottles, General.
Print options:
4, 6,8,10 colour flexographic
or gravure printing.
Seal options:
Top – 6mm, 13mm, 15mm
Bottom – 6mm, 13mm, 15mm
4 edge seal-5mm, 7.5mm, 10mm
K-base seal profile.
Feature options:
Breather de-gassing valve for coffee.
Handle punch
Hang sell features; 6mm, 8mm hang hole punch.
Euro punch; 15mm or 22mm punch.
Tear notch; 3mm.
Material options:
Plain or printed laminated film
structures.
Polyester/LLDPE
Polyester/foil/LLDPE
Nylon/LLDPE.
Nylon/foil/LLDPE.
Metallised laminates.
Paper laminates.
Retort laminates.
Polypropylene.

Stand up pouch

Description: Bottom gusset stand up pouch that will stand unassisted when filled. The bottom gusset opens to provide self-standing ability & extra volume inside the bag.
These pouches can be used for a variety of products from food, coffee, tea, pet food, confectionery, powders, liquids, horticulture products. They can be made to almost any size.
Print options:
4, 6, 8, 10 colour flexographic
or gravure printing.
Seal options:
7.5mm or 10mm side seals.
Round Base seal profile.
K-base seal profile.
Circular base seal.
Feature options:
Reclosable slider.
Reclosable zipper.
Breather de-gassing valve for coffee.
Handle punch for larger stand up pouch.
Hang sell features; 6mm, 8mm hang hole punch.
Euro punch; 15mm or 22mm punch.
Tear notch; 3mm.
Material options:
Plain or printed laminated film
structures.
Polyester/ LLDPE
Polyester/ Foil/ LLDPE
Nylon/ LLDPE.
Nylon/ Foil/ LLDPE.
Metallised laminates.
Paper laminates.
Retort laminates.

Stock range of breather valves.

ASF 15 BREATHER VALVE. Made in Italy
ASTC BREATHER VALVE. Made in Italy

Used for
ICA-ASF 15 BREATHER VALVE: Ground Coffee de-gassing valve and Whole bean coffee de-gassing valve can be used in either automated machinery or are used in pre-made pouches and side gusset bags.
ASTC BREATHER VALVE: Whole bean coffee de-gassing valve can be used in either automated machinery or are used in pre-made pouches and side gusset bags.
The valve allows the roaster to pack the coffee within hours of it being roasted this maintains and increase the packs freshness which in turn extends the shelf life of the product and gives your customer the best quality always. The valve degasses the pack allowing the packaging to keep its perfect shape.
As for our specification on the breather degassing valves for your application.

Fin seal, flat or Side gusset bags

Description:A bag which is either a pillow or has side gussets.
Can be used for Food, Coffee and Tea, Pet Foods, Dairy products, Confectionery, Powders, Horticultural products, Mining, wine bottles, General.
Print options: 4, 6,8,10 colour flexographic or gravure printing.
Seal options:
Top – 6mm, 13mm, 15mm
Bottom – 6mm, 13mm, 15mm
Fin Seal – 15mm
K-base seal profile.
Feature options:
Breather de-gassing
valve for coffee.
Handle punch
Hang sell features;
6mm, 8mm hang hole punch.
Euro punch; 15mm or 22mm punch.
Tear notch; 3mm.
Material options:
Plain or printed laminated film structures.
Polyester/LLDPE
Polyester/foil/LLDPE
Nylon/LLDPE.
Nylon/foil/LLDPE.
Metallised laminates.
Paper laminates.
Retort laminates.
Polypropylene.

Retortable pouches

Description: Bottom gusset stand up bag or pouch that will stand up when opened. The bottom gusset opens to provide extra volume inside the bag or Three
side seal pouch can be used for a variety of products in the food, , pet food,. Can be made to almost any size.
Print options:
4, 6,8,10 colour flexographic
or gravure printing.
Seal options:
7.5mm or 10mm side seals.
K-base seal profile.
Circular base seal.
Feature options:
Hang sell features; 6mm, 8mm
hang hole punch.
Euro punch; 15mm or 22mm punch.
Tear notch; 3mm.
Material options:
Plain or printed laminated film structures.
Retort laminates; these laminates are
specific to the product and will need to be
engineered to the product and process.
Clear or foil, printed or plain laminations
we can provide.

Three side seal pouch

Description: A Flat film that has been folded or 2 webs brought together and sealed on three sides to form a pouch or bag..
Can be used for Food, Coffee and Tea, Pet Food, Confectionery, Powders, Dairy Products, Horticultural products, Mining, Medical, Dairy products, Mining, General.
Print options:
4, 6, 8, 10 colour flexographic
or gravure printing.
Seal options:
Top – 6mm-20mm
Bottom – 5mm-20mm
side Seal -5mm-10mm
header Seal – 5mm-40mm
Bottom seal-5mm-20mm.
Feature options:
Reclosable slider.
Reclosable zipper.
Breather de-gassing valve for coffee.
Handle punch for larger stand up pouch.
Hang sell features; 6mm, 8mm hang hole punch.
Euro punch; 15mm or 22mm punch.
Tear notch; 3mm.
Material options:
Plain or printed laminated film
structures.
Polyester/LLDPE
Polyester/foil/LLDPE
Nylon/LLDPE.
Nylon/foil/LLDPE.
Metallised laminates.
Paper laminates.
Retort laminates.

Slider and Zip lock Bags

Can you print these types of Bags?

Yes, full print both flexo and gravure up to 9 colours

How many slider/zipper bags do I need to purchase in order to get them printed?

Good question…slider/zipper bags that are stock sizes we sell in cartons of 500, printed bags will require a quote and usually depending on size.

I’ve never sealed a bag before, what do I need to do this?

A heat sealing unit, basically two heated bands clamp the film together and seal the bag. These tools can be very simple to very complex depending on the application. We don’t sell them but will gladly help you find the right sealing unit.

How do I know what film to use for my zipper bag?

It depends on the product you are packing and what you are trying to do. Our sales people will gladly work with you to design the right film for your application.

How long does a printed slider/zipper bag take to produce?

After the artwork is approved by the customer, it will take between 10 weeks of gravure and 4-6 weeks flexographic. The lead time depends on film structure, type of bag and the quantity ordered.

Can you make a printed zipper bag that has the zipper and top of the bag already sealed so all I have to do is load the opposite end and seal it?

Yes, this is called a bottom fill bag .

What do you need from me in order to quote a custom printed slider/zipper bag?

Bag dimensions, style of bag, what you are packaging and weight of product, shelf life expected, quantity and electonic copy (PDF) of your artwork (If available)

COF: Coefficient of friction, a measurement of “slipperiness” of plastic films and laminates. Measurements are usually done film surface to film surface.
Measurements can be done to other surfaces as well, but not recommended, because COF values can be distorted by variations in surface finishes and contamination on test surface.
Doyn-Style Stand-up Pouch: A stand-up pouch that has seals on both sides and around the bottom gusset.
EAA: Ethylene acrylic acid copolymer. Because of its excellent adhesion to aluminum foil, it is mostly used for extrusion lamination of foil to other surfaces.
Extrusion Lamination: A laminating process in which individual layers of multi-layer packaging materials are laminated to each other by extruding a thin layer of molten synthetic resin (such as polyethylene) between the layers.
EVA: Ethylene-Vinyl Acetate copolymer. Much softer and clearer than LDPE or LLDPE and has lower melt temperature. Its melt temperature goes down, while its softness increases with increasing vinyl acetate (VA) content. EVA resins with 2-18% VA content are used for cast and blown packaging films.
EVOH: Ethylene-Vinyl Alcohol copolymer, used in coextruded plastic films to improve oxygen barrier properties. It is, however, a poor water vapor barrier. Even its otherwise excellent OTR, (oxygen transmission rate) is sensitive to high humidity, therefore, for packaging applications, it is usually the core layer of coextruded plastic films, where it is shielded from moisture by protective layers of polyethylene. Its OTR
also depends on its VOH (vinyl alcohol) content.

Adhesive Lamination: A laminating process in which individual layers of multi-layer packaging materials are laminated to each other with an adhesive.
Biaxial Orientation: Orientation of plastic films in both machine and cross machine directions by stretching. Biaxially stretched films are generally well balanced in both directions and much stronger in terms of tear strength.
Blown Films: Plastic films produced from synthetic resins (such as polyethylene) by the blown process. In this process, the molten resin is extruded through a circular die into a tube. This tube is expanded (“blown”) by internal air pressure into a larger bubble with a much reduced wall thickness and cooled with external air quenching.
BON: Biaxially oriented nylon film, with excellent oxygen and aroma barrier properties, (see Nylon), but it is a poor water vapor barrier. BON is much stiffer than cast nylon film, but cannot be thermoformed.
CAN: Cast nylon film (see Nylon). Used mostly for thermoformable packaging applications.
CAPP or CPP: Cast PP film, (see PP). Unlike OPP, it is heatsealable, but at much higher temperatures than LDPE, thus it is used as a heatseal layer in retortable packaging. It is, however, not as stiff as OPP film. (PP = polypropylene) Cast Film: Plastic film produced from synthetic resins (such as polyethylene) by the cast process. In this process, the molten resin is extruded through a slot die onto an
internally cooled chill roll.
Cold Seal: A pressure sensitive adhesive coating on plastic films or laminates that will allow the packages to be sealed by application of pressure (with no heat or minimal heat).
Coextrusion: Simultaneous extrusion of two or more different thermoplastic resins into a sandwich-like film with clearly distinguishable individual layers.

MET-OPP: Metallized OPP film. It has all the good properties of OPP film, plus much improved oxygen and water vapor barrier properties, (but not as good as MET-PET).
Monoaxial Orientation: Orientation of plastic films by stretching in one direction, (machine or cross machine direction) only. These films are generally much stronger and stiffer, but have very poor tear strength in the direction of orientation.
MVTR: Moisture vapor transmission rate, usually measured at 100% relative humidity, expressed in grams/100 square inches/24 hours, (or grams/square meter/24 Hrs.) See WVTR.
Mylar™: Mylar is a registered trademark of the Dupont-Teijin Corporation. Is the industrial brand name for that corporation’s polyester (PET) film. Polyester film is a staple of multi-layer packaging for a wide variety of applications.
Nylon: Polyamide resins, with very high melting points, excellent clarity and stiffness. Two types are used for films: nylon-6 and nylon-66. The latter has much higher melt temperature, thus better temperature resistance, but the former is easier to process, and it is cheaper. Both have good oxygen and aroma barrier properties, but they are poor barriers to water vapor. Also, nylon films can be cast (see CAN), or oriented, (see BON).
Opacity: Hiding power of pigmented (mostly white) plastic films. It is beneficial for packing materials sensitive to light (visible or ultraviolet).
OPP: Oriented PP (polypropylene) film. A stiff, high clarity film, but not heatsealable.
Usually combined with other films, (such as LDPE) for heatsealability. Can be coated with PVDC (polyvinylidene chloride), or metallized for much improved barrier properties.
OPS Shrink Film: Oriented Polystyrene film. Very common alternative to PVC shrink films in Asia and Europe, but not readily available in the USA. Slightly higher priced than PVC films but more recyclable and has a greater shrink percentage.
OTR: Oxygen transmission rate. OTR of plastic materials varies considerably with humidity, therefore it needs to be specified. Standard conditions of testing are 0, 60 or 100% relative humidity. Units are cc./100 square inches/24 hours, (or cc/square meter/24 Hrs.) (cc = cubic centimeters)

Foil: A thin gauge (0.000285 – 0.0005 inches / 6-12 microns) aluminum foil laminated to plastic films to provide maximum oxygen, aroma and water vapor barrier properties. Although it is by far the best barrier material, it is increasingly being replaced by metallized films, (see MET-PET and MET-OPP) because of cost.

Four Process Colors: The four process colors (cyan, magenta, yellow and black) are also referred to as CMYK. However it is a myth that every image can be duplicated using the “four process colors.” Additional ‘spot’ colors are often required to generate the high resolution images that are most preferred in modern packaging.

HDPE: High density, (0.95-0.965) polyethylene. Has much higher stiffness, higher temperature resistance and much better water vapor barrier properties than LDPE, but it is considerably hazier.
Heatseal Layer: A heatsealable innermost layer in plastic packaging films and laminates. Can be either adhesive laminated or extrusion coated onto a non-sealable film (or foil).
Heatseal Strength: Strength of heatseal measured after the seal is cooled, (not to be confused with “hot tack,” see next item).
Hot Tack: Strength of heat seal measured before the seal is cooled, which is very important for high-speed packaging operations.
LDPE: Low density, (0.92-0.934) polyethylene. Used mainly for heatsealability and bulk in ackaging.
LLDPE: Linear low density polyethylene. Tougher than LDPE and has better heatseal strength, but has higher haze.
MDPE: Medium density, (0.934-0.95) polyethylene. Has higher stiffness, higher melting point and better water vapor barrier properties.

MET-PET: Metallized PET film. It has all the good properties of PET film, plus much improved oxygen and water vapor barrier properties. However, it is not transparent.

Release Coating: A coating applied to the non-sealing side of cold-sealable packaging films and laminates supplied in a roll form that will allow the packer to unwind these films or laminates on packaging machines.
Reverse Printing: The vast majority of all consumer is reverse printed. In this case, the outermost layer is printed on the back side and laminated to the rest of the multi-layer structure. While not mandatory in all industries, it is the preferred method for the food industry as it guarantees there will be no ink contact with the food product.
Shrink Films: Oriented films that are not heat-set after orientation. These films can shrink back close to their unstretched dimension at temperatures higher than the temperature of their orientation. See PVC Shrink Film, PET-G Shrink Film, and OPS Shrink Film.
Side-Gusset Bag: A bag with gussets on both sides, with a fin-seal running from top to bottom and sealed horizontally at the bottom and the top. Commonly used in the coffee industry.
Surface Print: The process where by the ink is deposited directly onto the outermost surface of the packaging film or material. The process is most commonly used in short run printing. A UV (ultraviolet) coating may be added to provide a hard exterior finish that prevents the ink from flaking or chipping.
Surlyn®: A special ionomer copolymer produced by Dupont. It has excellent
heatsealability, maximum hot tack and it can be sealed through contaminants, and therefore it is used as a premium heatseal layer for packaging films, especially recommended for high speed packaging machines.
Trap Print: Another term for Reverse Printing (see Reverse Printing). Trap printing derives its name from the fact that the ink is trapped between the outer layer of material and the substrate.
WVTR: Water vapor transmission rate, usually measured at 100% relative humidity, expressed in grams/100 square inches/24 hours, (or grams/square meter/24 Hrs.) See MVTR.
ZipSeal ™ Bag: A recloseable or reseable pouch produced with a plastic track in which two plastic components interlock to provide a mechanism that allows for recloseablility in a flexible package.

PP: Polypropylene. Has much higher melting point, thus better temperature resistance than PE. Two types of PP films are used for packaging: cast, (see CAPP) and oriented (see OPP).
PE: Polyethylene, depending on its density, it may be low density (see LDPE). medium density (see MDPE). or high density, (see HDPE).
PET: Polyester, (Polyethylene Terephtalate). Tough, temperature resistant polymer.
Biaxially oriented PET film is used in laminates for packaging, where it provides strength, stiffness and mperature resistance. It is usually combined with other films for heat sealability and improved barrier properties.
PET-G Shrink Films: Polyethylene Terephtalate Glycol shrink film. The most expensive shrink film for full body shrink sleeves, but clear, glossy, strong, and most recyclable. The highest shrink percentage available is about 75%, so this film is often required when the container has a narrow waist or neck.
Pinholing: The term for very small holes found in aluminum foil which dramatically affects MVTR (moisture vapor transmission rate) and OTR (oxygen transmission rate). Thicker foiles have fewer pinholes.
Plow-Bottom Stand-up Pouch: a stand-up pouch that is made from one piece of film.
The front, gusset, and back are continuous, so there is no seal at the gusset. Holds more weight than Doy-style pouches, so are commonly used for products weighing more than one pound.
PMS Number: The Pantone Matching System is the universally accepted color definition system. Colors can be blended or individually specified to match a specified Pantone reference color exactly.
PVC: Polyvinyl chloride. A tough, stiff, very clear film. The oriented version is used mainly for shrink film applications.
PVC Shrink Films: Polyvinyl chloride shrink film. Shrink percentages vary from about 40% for extruded PVC shrink tubing to over 60% for seamed material. The most cost-effective shrink film for full-body shrink sleeves.
PVDC: Polyvinylidene chloride. A very good oxygen and water vapor barrier, but not extrudable, therefore it is found primarily as a coating to improve barrier properties of other plastic films, (such as OPP and PET) for packaging. PVDC coated and ‘saran’ coated are the same.