Stand-up pouch

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Stand-up pouch of nuts; bottom structure of pouch Stand-up pouches.jpg
Stand-up pouch of nuts; bottom structure of pouch
Variety of stand-up pouches from Brazil Stand Up Pouches IMPAK.png
Variety of stand-up pouches from Brazil
Pouch of cat treats; close-up of top seal, opening notch, and internal reclosable strip Easy opining for pouch.jpg
Pouch of cat treats; close-up of top seal, opening notch, and internal reclosable strip

A stand-up pouch or doypack is a type of flexible packaging that is able to stand erect on its bottom for display, storage, and convenience. [1] It has characteristics of plastic bags, water bottles, and retort pouches. The bottom part of a stand-up pouch is gusseted to provide support for display or use. [2]

Contents

Stand-up pouches are commonly used for food packaging. They can be aseptically filled or filled on normal packaging lines. [3]

History

Early work on stand-up pouches was conducted in France by Leon and Louis Doyen  [ fr ]. [4] [5] Doyen was president of Thimonnier Company, which trademarked the name "Doypack" (from DOYen PACKaging").

Development of materials, design options, and equipment increased in the 1980s and 1990s. Development of the retort pouch was closely related. It is currently a very widely used package form.

Construction

The flexible pouches are usually constructed of multi-layer materials: various plastic films, paper, foil, etc. Pouches are often printed with high-impact graphics or sometimes have attached labels. The materials must have specialized heat-seal properties to allow conversion into pouches.

The most common pouch has bottom gussets to form a "W" which opens to allow a flat bottom. Side gussets are also sometimes used. Several design options are available. [6]

Inclusion of pour spouts and re-closable zip strips is common.

Equipment

The packaging machinery involved typically forms the pouch from preprinted roll stock. The preformed pouches are shipped to a packager where they are filled and the top is sealed.

The alternative is an integral form-fill-seal machine, whether vertical or horizontal. The equipment forms the pouches, fills the pouches in-line, and seals them. With foods, drinks, or medical products, special sanitizing and wash-down requirements are critical.

The resulting equipment is sometimes complex and expensive. Packagers who do not have the volume to fill a machine to its capacity often use contract packagers.

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<span class="mw-page-title-main">Heat sealer</span> Machine for joining thermoplastic materials using heat

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<span class="mw-page-title-main">Overwrap</span> Method of packaging

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<span class="mw-page-title-main">Vacuum packing</span> Method of removing air from package prior to sealing

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<span class="mw-page-title-main">Bail handle</span> Open loop handle for carrying or hanging items, or as a drawer pull.

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<span class="mw-page-title-main">Vertical form fill sealing machine</span> System to create and fill plastic bags and pouches

A vertical form fill sealing machine is a type of automated assembly-line product packaging system, commonly used in the packaging industry for food and many other products. Walter Zwoyer, the inventor of the technology, patented his idea for the VFFS machine in 1936 while working with the Henry Heide Candy Company. The machine constructs plastic bags and stand-up pouches out of a flat roll of film, fills them with product, and seals them. Both solids and liquids can be bagged.

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A retort pouch or retortable pouch is a type of food packaging made from a laminate of flexible plastic and metal foils. It allows the sterile packaging of a wide variety of food and drink handled by aseptic processing, and is used as an alternative to traditional industrial canning methods. Retort pouches are used in field rations, space food, fish products, camping food, instant noodles, and brands such as Capri-Sun and Tasty Bite.

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<span class="mw-page-title-main">Resealable packaging</span>

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<span class="mw-page-title-main">Pail (container)</span>

In technical usage in the shipping industry, a pail is a type of cylindrical shipping container with a capacity of about 3 to 50 litres. It can have straight or slanted sides and usually has a handle or bail.

<span class="mw-page-title-main">Clamshell (container)</span> Type of consumer product packaging

A clamshell is a one-piece container consisting of two halves joined by a hinge area which allows the structure to come together to close. Clamshells can be made to be reusable and reclosable or can be sealed securely.

<span class="mw-page-title-main">Tub (container)</span> Type of large bowl typically for washing or packaging

A tub is an open-top circular or oblong container. In earlier times they were made from wooden staves held together with iron hoops and were made by coopers. Modern tubs used in industry might be made from concrete, metal or plastic.

<span class="mw-page-title-main">Overpackaging</span> Use of excess packaging

Overpackaging is the use of excess packaging. The Institute of Packaging Professionals defines overpackaging as “a condition where the methods and materials used to package an item exceed the requirements for adequate containment, protection, transport, and sale”

References

  1. Greely, MJ (22 September 2009), "Standup Flexible Pouches", in Yam, K L (ed.), Encyclopedia of Packaging Technology, Wiley (published 2010), pp. 1155–1159, ISBN   978-0-470-08704-6
  2. Soroka, W (2008). Illustrated Glossary of Packaging Terminology (Second ed.). Institute of Packaging Professionals. p. 170.
  3. Jones, R T (9 September 2009). "From Doy-Pack to S-Pouch". Packaging Digest: 58–63. Retrieved 6 August 2019.
  4. US 3935993,Doyen, Leon&Doyen, Louis,"Free-standing container",published 1976-02-03
  5. US 3502521,Doyen, Leon&Doyen, Louis,"Method of producing plastic containers",published 1970-03-24
  6. United States Patent Classification B65D75/008, Standing pouches, US Patent Office

Bibliography