Blister packaging, Blister Packs, or simply blisters, are terms used to describe several types of pre-formed clear plastic cavities typically used for securely packaging small consumer goods. Often these packages will hang on a merchandising wall. The components of a blister pack consist of a cavity, pocket, or bubble made from clear plastic and a backing (often a paperboard card). It is common to integrate a hanging element of various styles into either the plastic or the backing. Read on to see these effects.
Bubble or Cavity
To design the bubble or cavity, VisiPak customers can send in a sample of the product to be packaged (or a drawing of the design). From either of these, a mold is engineered that will produce a clear, plastic bubble. The type of blister package chosen will affect the cavity design and this includes the type of material, such as PVC or PET plastic.
Card or Backboard
While the transparent blister allows one to see the product, most blister packages also include some type of blister card or paperboard. This card (or cards) provides space for graphics and product information which serves to inform and grab the buyer’s attention.
Given that most blister packs are designed to hang on a merchandising wall, most are designed with some type of hanging feature. Given that paperbaord can rip more easily than plastic, many blister packaging designs feature hang holes that are integrated into the plastic blister. Multiple hanging holes styles are available.
Common Types of Retail Packaging Blisters
There are several different types of blister packaging – Face Seal, Full-Face Seal, Trap, and Slide. Each one has its unique qualities and price points, from entry level to high end.
Features of Blister Packaging
Blister Packaging is an economical choice for the retailers and benefits the consumer as well. The product can be visually examined through the transparent plastic. The backing card is usually colorful and designed to focus on the features of the product placed between the blister and card. The blister tray is affixed to the card using heat and pressure to activate an adhesive (heat seal coating) on the blister card. The adhesive is strong enough so that the pack may hang on a peg, but weak enough so that the package can be easily opened. Sometimes, with large items, the card has a small window to allow the consumer to touch the product while still allowing it to remain secure.
Blister packs typically represent one of the most cost-effective methods for packaging a product. Both the paperboard and plastic blister - which are available in different materials and thicknesses - are inexpensive. Plus, numerous companies make equipment to automate the packing and sealing processes.
Given that most blister packs are merchandised on wall displays, they often feature plenty of space for branding and marketing space. Graphics on the cards can be used to help products stand out and may include promotional materials or advertisements to help build brand awareness.
Clear Display of Product
Most consumers believe it is important to see the actual product before making a purchase. Blister packaging allows shoppers to view the product and clearly see a well-protected product, making their purchase decision easier.
Blisters are designed to provide a deterrent to theft by sealing or trapping the product between the blister and the card. Packages are typically designed to be tamper-evident to ward off temptation.
Slot Hang Tabs
Hook Hang Tabs
Hole Hang Tabs
Fold Up Hang Tabs
Security Hang Tabs
Applications for Blister Packaging
Blister carded packaging is used in a variety of markets and product categories, including:
- Club Stores (typically trap blisters)
- Major Retail Chains
- Home Improvement, Hardware, Tools
- Hunting and Fishing
- Sports & Recreation
- Health and Beauty, Cosmetics
- Household Goods
- Office and Craft Supplies
- Toys and Games
Pharmaceutical Blister Packs
Another type of blister pack that differs from most retail blister packaging are those designed for pills and tablets. These pharmaceutical blister packs usually consist of a relatively thin blister tray that is lidded with a foil barrier.
These packs allow the medication or supplement to be pushed through the lidding material - providing the tamper evidence obviously critical for these items. This type of sealing is also good for protecting products against external factors like humidity and contamination, and can do so for extended periods of time. Opaque blisters also protect light-sensitive products from UV rays that can negatively affect efficacy.
The term "blister tray" is another type of blister packaging although we commonly refer to them as thermoformed trays. They are made on the same machines with the same types of plastics, so they are essentially the same as blister packs. The main purpose of a tray is to be sealed to a paperboard card or hung on a merchandising wall.
Still, Blister trays can still be lidded with foil, film or a thermoformed plastic lid. They may function as packaging insert trays. Or, oftentimes, they are used as shipping trays or material handling parts trays.
Steps in Developing a Custom Blister Package
1. Project Begins
- Email, conference call, or in-person meeting to review:
- Customer supplies example of product or a drawing with dimensions
- Card Dimensions / Shelf Space available / Planogram is discussed
- Features or Benefits that want to be highlighted are discussed
- Hang-Hole Type
- Goals for packaging and branding are discussed
- Budget is discussed and estimated costs are provided
- Customer is provided with a 2-D design from a VisiPak packaging engineer that incorporates what has been discussed.
- Customer reviews design and provides feedback.
- Design is approved or revisions are made and process continues until design approval.
- Customer submits purchase order for prototype
- Ren board mold is created in-house and blister samples are produced
- We design and test customer sample for form, fit, and function
- If only drawing available from customer we use software to estimate form, fit and function
- We ship blister samples to client for approval
- Customer approves blister or revision is made (1st revision typically at no charge)
4. Tool Development
- Client submits approval of blister and releases purchase order for production of blister
- Aluminum mold is manufactured in-house on state of the art CNC equipment.
5. Part Production & Fulfillment
- Product is scheduled for production usually within 1 week after tooling is complete.
- Blisters shipped to customer.
Grease Monkey Wipes
Lang Pharma Nutrition
George & Co. Games
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