Bags or sacks for flour range in size and material, from large bulk bags, in cotton or woven polypropylene, to smaller consumer packaging, often made of paper.
Bags or sacks for flour range in size and material, from large bulk bags, in cotton or woven polypropylene, to smaller consumer packaging, often made of paper.
Flour is often shipped from the miller to bakeries, institutions, and other bulk uses. Sizes range from 10 kg to 100 kg. One traditional construction was cheap cotton bags. These printed cotton bags were sometimes viewed as collectables; other times the flour sack fabric was repurposed into a variety of household items.
Current practices are to use multi-wall paper sacks. Some include a layer of plastic film for barrier properties and insect control. Woven polypropylene bags are also used for high strength; at least one variety (Purdue Improved Crop Storage bags) also includes inner plastic bags.
Consumer packages are often bags or sacks constructed of paper. Plastic films are also used, sometimes with reclosable features. Stand-up pouches of flour have recently been introduced. [1]
A wide variety of wheat flour are available. Flour can also be made from other grains, roots, nuts, etc. Packaging engineers and food scientists need to understand the properties of the particular flour, intended handling and logistics systems, and desired shelf life. [2] Package forms and materials can be matched to these needs. [3]
Insects can be a problem. When available, a suitable insecticide can be used; care must be used to ensure product safety. Hermetic plastic bags also help. [5] [6] When insect infestation is noted, one method of stopping further growth is to freeze the sacks of flour for several days. [7]
A tea bag or teabag is a small, porous, sealed bag or packet, typically containing tea leaves or the leaves of other herbs, which is immersed in water to steep and make an infusion. Originally used only for tea, they are now made with other tisanes as well.
A gunny sack, also known as a gunny shoe, burlap sack, hessian sack or tow sack, is a large sack, traditionally made of burlap formed from jute, hemp, sisal, or other natural fibres, usually in the crude spun form of tow. Modern-day versions of these sacks are often made from synthetic fabrics such as polypropylene.
A plastic bag, poly bag, or pouch is a type of container made of thin, flexible, plastic film, nonwoven fabric, or plastic textile. Plastic bags are used for containing and transporting goods such as foods, produce, powders, ice, magazines, chemicals, and waste. It is a common form of packaging.
A coffee bag is a container for shipping and storing coffee. Coffee beans are usually transported in large jute sacks, while coffee sold to consumers may be packaged as beans or ground coffee in a small, sealed plastic bag.
A paper bag is a bag made of paper, usually kraft paper. Paper bags can be made either with virgin or recycled fibres to meet customers' demands. Paper bags are commonly used as shopping carrier bags and for packaging of some consumer goods. They carry a wide range of products from groceries, glass bottles, clothing, books, toiletries, electronics and various other goods and can also function as means of transport in day-to-day activities.
Kraft paper or kraft is paper or paperboard (cardboard) produced from chemical pulp produced in the kraft process.
Nonwoven fabric or non-woven fabric is a fabric-like material made from staple fibre (short) and long fibres, bonded together by chemical, mechanical, heat or solvent treatment. The term is used in the textile manufacturing industry to denote fabrics, such as felt, which are neither woven nor knitted. Some non-woven materials lack sufficient strength unless densified or reinforced by a backing. In recent years, non-wovens have become an alternative to polyurethane foam.
A flexible intermediate bulk container (FIBC), jumbo, bulk bag, super sack, big bag, or tonne bag is an industrial container made of flexible fabric that is designed for storing and transporting dry, flowable products, such as sand, fertilizer, and granules of plastic.
A tote bag is a large, typically unfastened bag with parallel handles that emerge from the sides of its pouch.
A reusable shopping bag, sometimes called a bag for life in the UK, is a type of shopping bag which can be reused many times, in contrast to single-use paper or plastic shopping bags. It is often a tote bag made from fabric such as canvas, natural fibres such as jute, woven synthetic fibers, or a thick plastic that is more durable than disposable plastic bags, allowing multiple use. Other shoppers may use a string bag or a wheeled trolley bag. They are often sold in supermarkets and apparel shops.
Food storage containers are widespread in use throughout the world and have probably been in use since the first human civilizations.
Reuel Colt Gridley was an American storekeeper who gained nationwide attention in 1864, when he repeatedly auctioned a plain sack of flour and raised over US$250,000 for the United States Sanitary Commission, which provided aid to wounded American Civil War soldiers.
A bag is a common tool in the form of a non-rigid container, typically made of cloth, leather, bamboo, paper, or plastic. The use of bags predates recorded history, with the earliest bags being lengths of animal skin, cotton, or woven plant fibers, folded up at the edges and secured in that shape with strings of the same material. Bags can be used to carry items such as personal belongings, groceries, and other objects. They comes in various shapes and sizes, often equipped with handles or straps for easier carrying.
Purdue Improved Crop Storage (PICS) bags are bags developed by scientists at Purdue University to store grain and seeds. They use hermetic storage technology to reduce loss of post-harvest cowpea due to bruchid infestations in West and Central Africa.
Pollination bags, sometimes called crossing bags, isolation bags or exclusion bags, are containers made of various different materials for the purpose of controlling pollination for plants.
Reusable packaging is manufactured of durable materials and is specifically designed for multiple trips and extended life. A reusable package or container is "designed for reuse without impairment of its protective function." The term returnable is sometimes used interchangeably but it can also include returning packages or components for other than reuse: recycling, disposal, incineration, etc. Typically, the materials used to make returnable packaging include steel, wood, polypropylene sheets or other plastic materials.
Grain storage on a subsistence farm is primarily based on minimizing grain loss. In modern agricultural practices there are methods of managing under 1% grain loss, but small subsistence farms can see 20% - 100% of grain loss. This causes starvation and an unstable food supply. Grain loss can be caused by mold growth, bugs, birds, or any other contamination.
Bakhresa Group is an industrial conglomerate based in Tanzania, East Africa. Owned by an entrepreneur and Tanzanian billionaire Said Salim Bakhresa, the business is one of the largest in the region.
Package handles, or carriers, are used to help people use packaging. They are designed to simplify and to improve the ergonomics of lifting and carrying packages. Handles on consumer packages add convenience and help facilitate use and pouring. The effect of handles on package material costs and the packaging line efficiencies are also critical. A handle can be defined as “an accessory attached to a container or part for the purpose of holding or carrying.” Sometimes a handle can be used to hang a package for dispensing or use.
Feed sack dresses, flour sack dresses, or feedsack dresses were a common article of clothing in rural US and Canadian communities from the late 19th century through the mid 20th century. They were made at home, usually by women, using the cotton sacks in which flour, sugar, animal feed, seeds, and other commodities were packaged, shipped, and sold. They became an iconic part of rural life from the 1920s through the Great Depression, World War II, and post-World War II years.
