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March 18, 2024
On Monday, August 8th, 2024, the moon will pass directly in front of the sun and create a total solar eclipse. Those in the path of totality for the so-called “Great North American Eclipse” will get to witness a potentially once-in-a-lifetime event:
Hopefully, you’ve already stocked up on CE and ISO-certified 12312-2 solar eclipse glasses that block harmful infrared and ultraviolet rays when you watch the eclipse. But there’s more to the eclipse than just what’s in the sky; in fact, there are plenty of phenomena happening all around that you can’t miss out on. With the help of our very own packaging supplies, here are three solar eclipse experiments you can perform to make the most of it.
Pinhole Projection
If you have a flat object with a pinhole cut out of it, you will see a perfectly circular dot of light in the shadow of the object. That is because both the top and bottom of the sun can beam through the pinhole and form the circular dot, as seen in the top half of the image below:
However, as the moon moves in front of the sun in a solar eclipse, it forms a solar crescent that projects a crescent shape through the pinhole, as seen in the bottom half of the above image.
This effect is best captured with a surface that is thin and sturdy, such as our rigid photo mailers. Get yourself an order of our rigid mailers and punch out any pattern of pinholes you desire. You can even spell out your name with pinholes and see how your name turns into little crescents as the eclipse approaches totality.
Sharp & Fuzzy Shadows
Immediately before and after totality, the crescent-shaped sun will impart a strange effect on shadows. In short, the sides of an object that are parallel to the shape of the crescent will retain some sharpness, while the sides that are perpendicular to the crescent shape will be significantly blurrier, as the image below demonstrates:
Normal sunlight acts as an extended source of light, meaning it is a wide light source that illuminates objects with all of its sides – top, middle, and bottom. The shadows we see every day look the way they do because of this extended light source.
When the moon passes in front of the sun and forms a solar crescent, it changes the sun into a linear source of light, a narrower and more concentrated beam of light. Sides of objects in line, or parallel, to this light source appear sharper while the perpendicular sides are much blurrier.
This effect works best with objects with perfect 90° angles. Our rigid photo mailers are once again ideal for this, but most of our mailing envelopes will work just as well.
For more information on this phenomenon, check out this article from the Astronomical Society of the Pacific.
Purkinje Effect
Have you ever noticed that colors in the evening look less…colorful? This is because when our eyes adapt to darker conditions, they become more sensitive to blue colors and less sensitive to reds and greens. This natural anomaly is known as the Purkinje Effect.
You are guaranteed to witness this effect occur during the solar eclipse. To make the most of it, stock up on some red and green tape and create a pattern or design to your heart’s content. Then, on the day of this eclipse, take your red and green creation outside and watch as the colors slowly but surely desaturate as the moon moves in front of the sun.
EclipseSuppliesByMail
Total solar eclipses are a rarity. The next time the path of totality will cross the contiguous United States won’t be until 2045, traveling from California and moving southeast into Alabama and Florida. The northeast, on the other hand, won’t see another total solar eclipse until 2099! Alongside your eclipse glasses, don’t forget to stock up on some of our rigid photo mailers and colored tape to try your hand at some solar eclipse experiments and maximize your once-in-a-lifetime experience.
At the same time, as we watch these gigantic cosmic bodies perform their celestial dance above us, we should take this moment to reflect. Despite our earthly burdens of bills and deadlines, the universe continues on its silent and graceful course. Let us, in this extraordinary moment, take a breath and embrace the feeling of being alive here and now. After all, “the cosmos,” as Carl Sagan has said, “is within us. We are made of star-tuff. We are a way for the universe to know itself.”
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February 21, 2019
Poly mailers are essential to the e-commerce industry. These waterproof envelopes are a great alternative to corrugated cardboard boxes. Not to mention, lightweight mailers save sellers tons of money in shipping fees. We’ve answered a few of the most common questions about poly mailers below!
What are poly mailers made from?
Poly mailers are made of polyurethane material. Polyurethane is a versatile, plastic that can be molded into various shapes and sizes. According to the American Chemistry Council, a collection of companies discovering chemical innovations, “Polyurethanes can be found in mattresses, couches, insulation . . . and many other places and applications.”
Poly mailers are durable, white plastic bags that ship products with ease. These envelopes feature a fold over lip and self-sealing adhesive. No extra tape is needed.
All poly mailers resist dirt, dust, & moisture—so purchases stay secure in transit!
What are poly bubble mailers?
Poly bubble mailers add even more security to shipments. These mailers are pre-lined with a ‘bubble wrap’ to absorb shock during transit. This is a great way to secure merchandise and save money. Durable mailing envelopes are lightweight, so companies do not have to pay expensive freight costs.
To check out more mailers, visit our Complete Guide to Mailing Envelopes.
Are poly mailers recyclable?
Yes, poly mailers are recyclable. Simply cut off the label with your name and address on it before recycling. Poly mailers do not need to be broken down further—simply place them in a personal recycling container and go about your day!
Unfortunately, many individuals do not know that polyurethane material is recyclable. Tons of plastics end up in landfills each year—yuck!
Companies and individuals can change this narrative. Businesses can mention frequently recycled product on customers’ receipts. Smaller brands can educate employees about recycling initiatives. Remember, we are all in this together!
Are poly mailers reusable?
Returnable poly mailers are reusable and perfect for first time shoppers. These mailers have two self-seal adhesive strips to return unwanted merchandise.
If items need returned, individuals can simply peel off the second adhesive strip and remail the purchase. To make this process smoother, make sure to verify the return address with a customer service representative.
Other mailers have one permanent adhesive—so they are only sealed once. Poly mailers are great for frequent buyers—while returnable mailing envelopes are ideal for potential exchanges.
Are poly mailers the best shipping mailers for clothes?
Expansion Poly Mailers are excellent for shipping clothes with ease. These mailers have a gusseted bottom for bulkier items. Expandable poly mailers are a cost-efficient way to send books, clothes, or irregular shaped merchandise to customers.
Returnable poly mailers are another great choice. These mailers are perfect for items that are frequently sent back, such as clothes ill-fitting that customers tried on but cannot keep. Shoppers can simply place unwanted apparel within the mailing envelope to return or exchange.
How do you measure a poly mailer bag for shipping?
Whether you are shopping for mailers on our store or elsewhere, it is important to understand how the measurements have been made for the listing. We like to make it very clear what the inside usable dimensions are for our mailer products. The inner dimensions represent the space within the mailer that can be used comfortably to hold an item. Some companies will include the length of the mailer’s lip in their overall measurement. When you order a 5” x 10” mailer from those stores, you will find that you may only be able to fit an item that is 5” x 8.5”. Always try to shop by comparing usable dimensions when possible.
Which size poly mailer should I use?
The size of mailer that you need depends on what you are shipping. Start by measuring the length, width and depth of the item that needs to be shipped. This is going to be the minimum size that you can start to shop for. Remember that mailers are measured flat. If you have an item with a large volume, you might want to consider an Expansion Poly Mailer as these have gusseted bottoms that will expand and provide more room. If you are looking for bubble mailers, add ½” to your measurement because the bubble lining will take up some space.
Always choose a size that is larger than your item’s measured dimensions. With poly mailers you can always seal the lip of the envelope further down to create a tighter seal on the object. You cannot stretch poly mailers to create extra space if you purchased a size too small.
How do you ship poly mailer bags?
Put your valued supplies within the mailer. Make sure all materials fit inside. Peel off the adhesive strip and fold over the sticky tab to seal. Poly mailers can be shipped with any of the main carriers. UPS, FedEx and the US Postal Service will all accept shipments in poly mailer bags.
Direct thermal or transfer labels can be purchased from PackagingSuppliesByMail. Put a shipping label on the outside of the mailer—making sure the label fits flat on one side of the mailer and that there are no folds.
How much does shipping goods in poly mailers cost?
According to the United States Postal Office, a 9” x 12” mailing envelope starts at $7.95 to ship (Priority). A small box costs $8.55—that’s a difference of .60 cents! It might not seem like a lot of money—but consider sellers that ship thousands of items per day. Businesses could be saving millions of dollars per year!
Which is the best choice: Kraft bubble mailers or poly bubble mailers?
Ultimately, business personnel decide the best packaging supplies for their company. Kraft bubble mailers have a natural look that many people enjoy. Kraft envelopes can also be customized further. However, poly bubble mailers are truly moisture resistant. These envelopes could be designed to intrigue customers as well.
For a deeper dive into differences between Kraft bubble mailers and poly bubble mailers—visit our blog post This or That: Kraft Bubble Mailers vs. Poly Bubble Mailers.
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October 29, 2018
'Packaging' - There is so much buzz around the word itself and there are various dimensions related to it that play an important role in the decision making of buyers. Supermarket shopping has brought convenience to the buyers and competition to the sellers. It is a challenging task to end up in a shopping cart at the supermarket, and the journey is not easy. However, the slightest slip up can cost you money and bring down the sales numbers.
Avoid these mistakes to increase the selling probability of your products:
- Lack of Package Testing
It is very disappointing to find a product damaged inside the packaging due to production error or simply by the environment the package is subjected to. Customers straight away decline purchasing anything from your brand if they come across a poor packaging or witness a damaged product within.
It is extremely important to test your product packaging after design and production for shipping durability, rough handling and tamper resistance.
- Outdated packaging
Never stay slow in the race. Keep an eye on your targeted customers' buying habits and also on what other competitors are doing to attract your loyal buyers. You may need to upgrade your packaging design and strategy frequently to keep users engaged with your brand. You must make sure to provide just what customers are looking for in your packaging - informed label, style, simplicity, usability and recyclability.
- Use of Manual Labor
Manual labor costs money. Automation can help you save enough time and money. Automating the product packaging can seem costly; however, it pays in the long run as you do not have to wait for hours to dispatch a lot of your product into packaging.
- Using the Wrong Shrink Film Specifications
The size and specifications of the Stretch Film you are using to wrap and hold items together also matters. Shrink film is by measured by gauge and width which means heavier and thicker films will cost more than the lighter ones. Lower film gauge can be used to provide the necessary protection by weighing less and reducing the production costs. In this case, you must ensure a perfect stretch wrap for binding your products together to avoid any damage or loss during transit.
- Skipping Preventive Maintenance
When business works well, it is easy to skip a proper maintenance plan. This ignorance can cost you money. A regular routine of preventive maintenance for your packaging machinery is a must. An overlooked minor issue can build up to be a major concern in the long run and then it may be too late. Your machine may break down any time and if you have a major consignment on target, it would be a costly affair.
- Choosing Wrong Packaging Materials
Select Packaging Materials that are in line for your product lines, as otherwise, you will simply lose your customer base. When talking about product packaging, there can be various pointers you may have to consider. Our aim is to help companies avoid packaging mishaps and boost sales!
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July 30, 2018
White bubble mailers undoubtedly find space on the shelf of every business and are a popular choice among the wide range of shipping mailers available on the market. When it comes to shipping professional documents, fragile items or anything that requires proper cushioning, white Kraft bubble mailers are the first pick.
Color matters...
White is universally accepted as a professional color and therefore these white colored shipping envelopes are usually selected for transporting professional documents across businesses. They do not disclose the contents packed within the envelope. Moreover, they provide a plain surface for printing custom labels.
Safety matters...
The white mailers ensure that your package stays safe from tampering. The self-adhesive closure can be trusted, and you can remain confident that the items packed within will not be affected by moisture.
Weight matters...
Although it has a padded packaging, the white bubble mailer keeps low on the weight to save on the overall shipping costs. These featherweight shipping envelopes are widely accepted by third-party courier companies like UPS, USPS and FedEx.
Recyclability matters...
Our Kraft bubble mailers can be easily recycled by separating the bubble lining from the paper material. We understand our accountability towards nature and encourage recyclable shipping materials.
Durability matters...
When it comes to strength of the packaging material, our White Kraft bubble mailers are no exception. They are manufactured to bear rough handling procedures of the third-party courier companies.
Cost matters...
They are extremely low on costs. Shipping large quantities lead to high shipping costs. With these cost-saving shipping mailers, you need not worry about the costs rising high.
At PackagingSuppliesByMail.com, we understand your shipping requirements and offer you quality, durable and economical shipping material options that serve your needs optimally. Our range of Shipping Mailing Envelopes offers you a wide variety to choose from. We have poly mailers, Kraft bubble mailers, bubble-out bags and packing list envelopes too. Browse our website for shipping materials that can be trusted for quality and cost-effectiveness.