Fade Resistant Ink and Polyethylene Bags

Many printing jobs require inks that are formulated to be fade resistant. Unfortunately, most printed materials exposed to light eventually fade.

There are specific factors that affect the resistance of an ink particle to fade. The two main factors include the size of the particle and the chemicals that go into the particle. Without getting too scientific on you, it all has to do with electrons and the particles ability to hold onto electrons. Light has the ability to change the make up of a particle, releasing electrons from ink particles, thus resulting in fading of the ink and a not so appealing package.

If you use polyethylene bags, sheeting, and pouches that are displayed under indoor florescent lighting or in direct sunlight in store windows or outdoors, you may be interested in fade resistant inks. Fade resistant inks will yield images that resist fading when exposed to UV rays. When ordering your product, explain the nature of the job and its intended end use to your sales representative. Also be sure to make your sales representative aware if the printed job will be displayed outdoors and exposed to weather. This information can help your sales representative determine the amount of lightfastness required to be built into the formation. Fade resistant pigments are quite costly, so you want a sales representative who can help keep your ink costs down by adding the proper fade resistant pigments to ensure the required degree of lightfastness.

The key is to talk to a knowledgeable sales representative and ask for light fast inks to provide top-notch performance with UV ink applications. After all, color is key for many packages and helps your product catch the eye and be recognized. For excellent visual impact a team effort is required among ink manufactures, sales representatives, product manufacturers, and the client.


Lumber cover, pallet cover

Introducing a New Protective Slip Sheet

Tri-Cor is proud to introduce a new protective slip sheet, which decreases stretch wrap and increases load stability. Plastic anti-slip sheets offer a clean, durable, space saving solution for your transport packaging needs, making them an excellent alternative to fiber slip sheets. With protective slip sheets you can decrease stretch wrap cost, increase load stability, interweave your pallets with anti-slip, water-resistant, slip sheets, and receive excellent pallet stabilization for bags or cartons.

Our new protective slip sheets are a lightweight, cost-efficient, waterproof, hygienic alternative to cardboard slip sheets. These slip sheets are reusable and 100% recyclable, deliver superior performance, provide durability, improve hygiene, and are environmentally friendly. They can be used between tiers as a separator sheet. These space saving, impervious to moisture and durable, plastic slip sheets provide simple cost effective solution for keeping the bottom of your products clean.

Details on the new protective slip sheets include:

  • Skid protection sheet
  • Separator (divider) sheets
  • Load/pallet top and bottom cover

Standard Size: 40″ x 48″
Rolls: 75 sheets per roll
Color: Gray
Made from: 100% recycled polyethylene material

Designed to

  • Protect from exposure to the elements as you prevent slippage
  • Protect stacked products our rugged slip sheets are manufactured from 100% recycled plastics
  • Be cut to fit and protect products of all sizes during transport and storage, preventing: scuffing and scratching, discoloration, mold formation, and moisture damage
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Tri-Cor protective anti slip sheets

Pet food industry moving to stand up pouches

As we all know, our family pets are a big part of our lives.


More and more pet food packaging companies are moving to stand up pouches. They want a fresher product and a package that sells. Pouches offer both.

This is what they’re saying:

Consumers are buying more and more of their pet products in stand up pouches than ever before.

Retail chains see pouches as more customer friendly package with resealable zippers. Pouches improve in store shelf presentation. Extending the shelf life of pet foods and treats by sealing in the freshness with impermeable materials.

What’s great about a pouch is you can have a clear window to display the product along with picture perfect graphics to close the sale. Many other features are available, tear notches, zippers, hang holes.

Polyethylene 101: All About Construction and Agricultural “C&A” Sheeting

Construction & Agricultural Sheeting, known as C & A sheeting, is a polyethylene sheeting designed for general purpose construction, agricultural, and industrial usage. Whether you need all-weather protection for indoor or outdoor storage; rot, mold, and mildew resistance; protection from moisture, grease, and oil; or a barrier against solvents, acids, or alkalis, C&A industrial sheeting is tough, flexible, lightweight and easy to handle. The following are all the details you’ve ever wanted to know about C&A sheeting.

Basic Uses:

Used in a wide variety of applications. Polyethylene provides an excellent vapor barrier for the protection of concrete slabs and foundations. Proper placement of polyethylene sheeting in walls during construction can almost completely prevent ambient air and moisture infiltration into homes and buildings, thus increasing their energy efficiency. Agricultural applications (black sheeting only) include retention of soil moisture, inhibition of weed growth, and coverage of pit and trench silos for inexpensive storage.


Specification covers both black and clear 2, 3, 4, 5, 6, 8, and 10 mil sizes. Most common widths include 10′,12′ 18′, 20′,24′,28′, 30′ and 40′.

Life Expectancy:

Clear polyethylene sheeting is not recommended for greenhouse use or any other application involving long-term exposure to sunlight. Black sheeting is recommended for applications not exceeding 90 days of sunlight exposure. Special additives are available at request for extended outdoor applications up to 2 years.

Shelf Life:

Polyethylene sheeting has a shelf life of approximately 2 years if not exposed to sunlight or extreme heat.


Due to variety of resins and additives available, it is often difficult to bond two pieces of film together. Two adhesives that have proven to be successful in the past are Universal Adhesives’ Spray Adhesive and DURO All Purpose Spray Adhesive distributed by Loctite Corporation.

Temperature Range:

Usable range for LDPE has been defined as -60 °F to 150 °F.


This sheeting is rated as a Class 4- LDPE for recycling purposes.

Additional limitations may or may not apply depending on the specific application and product. An experienced and knowledgeable salesman can help answer any other questions. Contact us at sales@tri-cor.com or visit www.tri-cor.com.

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Construction & Agricultural Sheeting
C & A sheeting

Stand Up Pouches Are Becoming More Popular

reclosable-ziplock-pouchesIn the packaging world, Stand Up Pouches and Re-Closable Pouches are becoming more popular due to the numerous benefits they provide.

Stand Up Pouches and Re-closable Pouches can be an excellent option for a variety of packaging requirements including, but not limited to, food items (rice, seafood, flour, grain, pasta, cereal, granola, etc), health food items, coffee and tea products, beverage mixes such as chocolate powders, pet food, bird food, pet treats, and non-food items such as grass seed, Tobacco, and healthcare products.

These popular, versatile, and attractive pouches provide the following advantages:

  • Laminations of multiple layers of film… Polyethylene to polyester, polyethylene to nylon, and polyethylene to metalized PET, and more.
  • Fresh products and increased shelf life
  • Superior strength
  • Protective barriers to moisture, odor, and air
  • High visibility with plenty of space for brand building
  • Eye-popping graphics with custom printing
  • Custom sizing to meet specific packaging needs
  • Customer appeal and aesthetic appeal for retail display
  • Ease of use and ideal for storage
  • Convenience with specialty features such as re-closable zippers, tear notches, hang holes, or die-cut handles

With so many benefits, Stand Up Pouches and Re-closable Pouches make the perfect package for a vast array of applications. It’s no wonder these pouches are growing in popularity!

Choose HDPE for your Bag Inserting Equipment

HDPE, what is it and what can it do for you?

HDPE, or high density polyethylene film, is a linear polymer prepared from ethylene by a catalytic process. High density polyethylene is just that, a high density closely packed structure with a somewhat higher chemical structure than low density polyethylene (LDPE).

So why choose HDPE?

The advantages alone can answer why. HDPE is an extremely versatile material with advantages such as the non-blocking characteristics in addition to added stiffness, impact and wear resistance, flexibility, chemical resistance, food contact acceptability, processability, and toughness. Another benefit of HDPE is that it is harder, more opaque, and can withstand rather higher temperatures than LDPE. HDPE also has advantages in many machine applications such as Pearson’s automated insertion machines, OK International’s packaging automation systems, and K&R’spolybag inserter systems. These machines place the bags in cases or shipping containers with even cuffs around the flaps.

With LDPE blocking can occur, which stops production and causes downtime, neither of which you want on high-speed packaging lines. However, HDPE homopolymer resins are linear in nature and these HDPE resins exhibit hard, slippery surfaces that resist blocking. Therefore, with HDPE you don’t have stops in production or downtime.The bottom line is that bag inserter lines love HDPE’s non blocking, stiffer film characteristics. And for an added benefit, HDPE has a lower moisture and oxygen transmission rate, which allows for longer product freshness.

If you weren’t aware of high density polyethylene (HDPE) and its advantages before, I bet you’re glad you are now.

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Bag inserter line

How to Measure for a Pallet Cover or Box Liner

Determining the size of your polyethylene bag is quite simple. All that is needed are some basic geometry skills.

Pallet Cover

To figure out the size of a pallet cover one must need to know the dimensions of the load. (length X width X depth). Once the load dimensions are known, the following steps can be taken to determine the size of the pallet cover:

  1. To start you should consider your width as the larger of the dimensions. (width or depth)
  2. If a pallet load is 48” wide X 42” deep X 36” high you take the 48 inches and add 4 inches as you do not want a cover that’s too tight. The bag width will be 52 inches.
  3. Now we will add another 2 inches to the depth (42) to get the gusset. The bag thus far is 52 X 44.
  4. To determine the length we need to take the height (36) and add half the depth, since the bag has a seal that will fall in the middle of the top of the pallet. We take our depth of 42 and divide it in half to get 21. Now we add 21 +36 = 57. We also typically add another 2 inches so that the load has some extra coverage.
  5. The final cover dimensions are 52 X 44 X 59.

Box Liner

Determining appropriate box liner dimensions are similar to determining pallet cover dimension except now the bag will sit inside the box rather than covering a pallet.

Let’s take a box that’s 14” length X 12” depth X 21” high.

  1. Add 2” to the width (14”) to give us 16” wide.
  2. Then add another 2” to the depth (12”) to give us 14” depth. Our first to dimensions of the bag are 16” X 14”. This represents the bag width and gusset.
  3. Now the tricky part is determining the bags length. We are going to take the box depth of 12” and add that to the height of 21” to get 33”. Now add 6 more inches so the bag can be tied and closed properly when filled inside the box.
  4. Our final bag dimensions are 16 X 14 X 37.

These are the basic rules, but some Pallet covers and box liners require some adjustments in size depending on the applications.

If you need assistance, just send us your box or load size and we will help with the calculations.

Gaylord Liners are used for many applications

A gaylord box is a pallet-sized box, typically cardboard, that is used for storage and shipping of bulk quantities.

In most cases, the products being shipped within a gaylord box are enclosed in an inner plastic bag that is used to protect the contents of the gaylord box. Those large bags, or liners, can have a variety of names: gaylord liners, tote liners, bin liners and combo liners are the most common.

They’re designed to protect the product from outside pollutants, toxins, and other contaminants during processing, storing, and transporting. Therefore, they must be strong and tear-resistant. These liners are used for many different packaging applications such as food packaging, resin products, color concentrates, chemicals, powdered products, pharmaceutical products, metal particles, and many more.

Depending on the product the liner is protecting, they are available in a wide array of structures. A few questions to consider:

  • Do I need low density resin, or high density resin?
  • Does it need to be bolstered for added strength with compounds like hexene or metallocene?
  • Does the liner need to be USFDA approved?
  • Do anti-stat properties need to be added?

Gaylord boxes come in a wide variety of shapes and sizes, and therefore, so do gaylord liners. When requesting a quote for a gaylord liner, you’ll need to know what size box you’re using. Measure your gaylord box by width (W), length (L), and depth (D). A good rule of thumb for figuring out an appropriate liner size for your box would be the following: See diagram.

Gaylord Box-2
  • Width (W) of the liner = Box width + 2 inches
  • Length (L) of the liner = Box length +2 inches
  • Depth (D) of the liner = Box depth + half of the box length + 12 inches.

However, you may need your liner size to be larger if you plan on tying off the enclosed product at the open end of the liner. It’s probably best to inform your sales representative not just of the box dimensions, but also how you’ll be shipping/storing your product so they can make a recommendation of the liner size you’ll need.

Some common gaylord liner sizes include:

  • 52 x 44 x 96 x 1.25 mil (thickness)
  • 52 x 44 x 96 x 2 mil
  • 50 x 38 x 90 x 3 mil
  • 50 x 44 x 76 x 4 mil

We monitor our comment sections, so if you have any questions on Gaylord liners, please feel free to ask them.

Your guide to purchasing printed resealable plastic bags

Have you ever felt overwhelmed with all the decisions that go into the purchasing process for printed resealable plastic bags?

Resealable Printed Bags

img_0060 resealable - ziplock pouch-resized-600You’re not alone. Between the materials, ink colors, printing colors, printing images and pictures, not to mention the additional options available, the varieties are endless. We decided that a summary of some of the many options available for printed resealable plastic bags and a few hints to use when purchasing your bags.

  • There are many types of plastic materials and additives that resealable bags can be produced with; FDA approved film for use in packaging food, EVA (ethyl vinyl acetate), additives for strength and freezing, anti-static materials, low density or high density polyethylene, and polypropylene, just to name a few.
  • Printed resealable plastic bags are also available in many film colors, with the option for clear to see your products inside. Process printing up to 10 colors brings your package to life on the shelf and will turn heads at the retail stores. Any image or picture can be printed on your reclosable bag to ensure your bags will be noticed and your company’s name and logo will be remembered.
  • Structural options for resealable plastic bags include bottom gussets, tamper evident seals, hang-holes, vent-holes, inno-lock, and peal and seal.

Six hints to consider when purchasing printed resealable plastic bags:

  1. Choose the correct thickness (mil) and film structure for your specific product application.
  2. Design your print to be large and vibrant so it can be read easily from a distance.
  3. Print on both sides of the bag (it’s no extra cost).
  4. Make sure your bag is large enough to hold your product but not over-sized and baggy.
  5. Be sure that the material is the right match for your product so your package can handle the weight of your product. Remember that if your bag rips your product could be damaged.
  6. Frozen products require freezer grade polyethylene or the film will become brittle and crack.

So the next time you are purchasing your printed resealable plastic bags, think of it as an opportunity to be creative and original with the wide selection of options. You are limited only by your own imagination!

Printed Pallet Covers Advertising benefits pellet fuel companies

thumbnailcafpaetc-resized-600Custom printed pallet covers are the sure fire way to advertise and improve load appearance while preventing pallet tampering and reducing freight damage. Freight damage can easily occur by your freight being loaded, unloaded and reloaded several times, in and out of warehouses and into and out of different trucks before delivery. The more times your freight is handled, the greater the chance of damage to your freight. Pallet covers help to reduce any damage to your freight so it arrives to you in the best possible condition.

In an industry such as the pellet fuel industry, a pallet cover can serve many purposes. You’ve got to keep your products dry during transportation and outside storage, in addition to ensuring your bags are clean for your customers. At the same time, you can show off your logo and company name with sharp vibrant printing that looks good even under the toughest conditions.

Ever wonder what is under those pallet covers when walking through big home improvement stores like Home Depot? Printed pallet covers become a great reminder to your customer to pick up another load of pellet fuel bags, all at a low advertising cost.

When purchasing pallet covers your opportunities are endless. Heavy-duty pallet covers are made specifically to fit your load size. Plus, film is available in many colors and your company logo can be printed on the front and back of the pallet. Any knowledgeable sales representative can be a valuable source when trying to decide on the best pallet cover for your specific application needs.

Pictured: Pellet Fuel Stove