The foam pump is widely used in case of cosmetic products and household chemicals, such as mousse foam cleansing, hand washing liquid, hand sanitizer, facial cleanser, shaving cream, hair conditioning mousse, sun protection foam, spot removers and baby products etc. In the field of food & beverages, molecular gastronomy style foam is usually created using various techniques and stabilizers such as lecithin but there is at least one ready to use liqueur that has been developed with the foaming apparatus top which produces an alcoholic foam topping for drinks.

How a foam pump work?

A foam pump emits doses of the liquid contained in the bottle in the form of foam. Foam is created in the foamer chamber. The liquid constituents are mixed in the foaming chamber and this is discharged through a nylon mesh. The neck finish size of a foam pump is bigger than the neck finish size of other types of pumps, to accommodate the foamer chamber. The usual neck size of a foam pump is 40 or 43mm.

Where hair-coloring products previously contained instructions to vigorously shake the product, squeeze the bottle, and turn upside-down to disperse the product, foamers do not require any such actions.[citation needed] Some foaming dispensers include suction on the bottom to allow the container to remain upright.

A foam pump, or squeeze foamer and dispensing device is a non-aerosol way of dispensing liquid materials. The foam pump outputs the liquid in the form of foam and it is operated by squeezing. The parts of the foam pump are similar to those of the other pump devices. Many times the foaming pump comes with a protective cap. Most of the components are made from polypropylene (PP).

Foamers can be purchased alone, or filled with a liquid product like soap. When the liquid is mixed with air, the liquid product can be dispersed through the pump-top as a foam. Foamers can also be re-used with different liquid products to extend the mass of the liquid by creating a foam-version.

PP bottles have excellent chemical resistance, but provide poor impact resistance in cold temperatures

Among the earliest glass jars used for home canning were wax sealers, named in reference to the sealing wax that was poured into a channel around the lip to secure a tin lid. This process, which was complicated and error-prone, became popular in the late 1830s or early 1840s and was commonly used for sealing fruit jars from the early 1850s until about 1890. The wax sealing process was largely the only one available until other sealing methods were developed,[5] and widely used into the early 1900s.

By far the most popular and longest used form of closure for the glass canning jar was a screw-on zinc cap, the precursor to today's screw-on lids. It usually had a milk-glass liner, but some of the earliest lids may have had transparent glass liners.[5] In 1858, a Philadelphia tinsmith named John Landis Mason (1832–1902) invented and patented a screw finish glass jar or bottle that became known as the Mason jar (U.S. Patent No. 22,186.)[6][7] From 1857, when it was first patented, to the present, Mason jars had hundreds of variations in shape and cap design.[5] After it was discovered that Mason's patent had expired, many other manufacturers produced glass jars for home canning using the Mason-style jar.[8] "Patent Nov 30th 1858, signifying the date of Mason's patent, was embossed on thousands of jars, which were made in many shapes, sizes, and colors well into the 1900s. Since they were made in such quantity and used for such long periods, many of them have survived to the present day.

Between 1860 and 1900, many other patents were issued for Mason jar improvements and closures.[9] The more esoteric closures were quickly abandoned, and thus can fetch high prices in today's antique market.[citation needed] Mason applied for and received a United States trademark, which was registered on May 23, 1871, as U.S. Trademark no. 276.[citation needed] Letters of patent issued to Mason on May 10, 1870, for improvements to his fruit-canning jar was determined to be invalid as a result of a patent infringement case brought before the Southern District of New York on June 11, 1874. The court acknowledged that Mason had invented the jar in 1859, but he did not apply for a patent for an improved version of the fruit jar until 1868. In the meantime, several others had patented designs and Mason had known these jars were being produced and sold. The court ruled that Mason's delay in protecting his patent indicated he had abandoned his invention in the intervening years between 1859 and 1868 and had forfeited his patent. The court's decision allowed other manufacturers to patent, produce, and sell glass jars for canning.

One of the more popular styles of closures for the Mason jar was the wire bail. The closure consists of a metal wire arrangement with a lever that applies leverage to a glass lid when pivoted downward against the side of the jar, clamping it down over a separate rubber O ring. The bail-style jars are still widely used in Western Europe, particularly France and Italy, where the two largest manufacturers (France's Le Parfait and Italy's Bormioli Rocco) produce the Le Parfait and Fido brands, respectively. While bail-type jars are widely available in the United States, they are generally marketed there exclusively for dry storage and only rarely used for home canning.[citation needed]

On January 5, 1875, Charles de Quillfeldt of New York City invented a wire-bail closure known as the Lightning closure. Within a short time he sold the patent rights to several individuals, including Henry Putnam and Karl Hutter. The stopper or lid was typically made from metal, porcelain, or ceramic, while a rubber gasket was used to seal the container. Putnam modified de Quillfeldt's design so that the lid was secured by centering the wire bail between two raised dots or in a groove along the lid's center. Putnam's closure was patented 1882 (U.S. Patent #256,857).

De Quillfeldt used the term "Lightning" to refer to the sealing method, but the closure's popular use on fruit jars led to the name, Lightning fruit jar. The sealing surface on the jar was a "shelf" that supported the lower edge of the lid. A rubber gasket between the shelf and the bottom surface of the lid formed a secure seal when the wire closure was tightened. Although Lightning jars were popular for home canning use from the early 1880s to the early 1900s, they were not as common as screw-thread Mason jars.[11] The first U.S.-made brand of jars to use this type of closure was embossed with "Lightning" on the side.[citation needed]

A new type of Mason jar known as a "bead" jar was introduced around 1910 to 1915. These continuous screw-thread jars were designed with a bead between the screw threads and the shoulder as a sealing surface. The Ball Perfect Mason jar, one of the most common jars of this style, was introduced around 1913 and produced until the mid-twentieth century. It had several variations, including a square-shaped jar.[5][12] During the twentieth century, bead jars were sealed with two-piece metal lids. The jar lid had a rubber or rubber-like sealing surface and was held in place by a separate metal band. This type of jar and closure, which first became popular in the late 1910s and 1920s, is still in use.

The decline in Mason jar manufacturing in North America is due to several factors: the lack of U.S.-based manufacturers of bail-closure jars since the early 1960s, a sharp decline in popularity of home canning in the 1950s and 1960s, consolidation of the U.S. canning jar industry, and the resulting higher cost of imported European-made jars.[citation needed] The Ball Corporation, who once dominated the market as the largest domestic manufacturer of home-canning jars, no longer produces Mason jars; it exited the home-canning business in 1993.

Older styles of home canning jars are "Not Recommended" by the U.S.-based National Center for Home Food Preservation, the United States Depertment of Agriculture, and University Extension Services. These include: (A) those using a zinc cap and a rubber jar ring, and (B) those using a glass lid, wire bail, and rubber sealing ring. These provide "no definitive way to determine if a vacuum seal is formed.

Information From Wikipedia

Among the most common U.S. brands of Mason jars are Ball, Kerr, and Golden Harvest. Jarden Corporation, based in Boca Raton, Florida,[1] retains the license to use the Ball and Kerr registered trademarks on home-canning products as a part of its branded consumables business.[2] At one time Jarden also may have had a license to use the Golden Harvest brand; however, Jarden’s website did not list Golden Harvest as one of its brands as of March 2016.[3][4] In Canada, Bernardin, which is another division of Jarden, is the most common brand; Golden Harvest is also available.[citation needed] Jarden offers its Canadian jars in metric volumes of 125ml, 250ml, 500ml and 1 litre.

Mason jars are made for canning food.   You don't want that food to spoil.   You seal the jar by sterilizing the jar, and by putting hot food in it and putting the seal on, then screw the lid on.  As the contents cool, the air inside will contract causing the lid to seal tight.  Your jar of food will be good for months or maybe even years.   It's what people did before there were grocery stores to store food for their families.

A Mason jar, named after John Landis Mason who first invented and patented it in 1858, is a molded glass jar used in home canning to preserve food. The jar's mouth has a screw thread on its outer perimeter to accept a metal ring (or "band"). The band, when screwed down, presses a separate stamped steel disc-shaped lid against the jar's rim. An integral rubber ring on the underside of the lid creates a hermetic seal. The bands and lids usually come with new jars, but they are also sold separately. While the bands are reusable, the lids are intended for single use when canning. Largely supplanted by other products and methods for commercial canning, such as tin cans and plastic containers, glass jars and metal lids are still commonly used in home canning. Mason jars are also called Ball jars, in reference to the Ball Corporation, an early and prolific manufacturer of glass canning jars; fruit jars for a common content; and glass canning jars a generic term reflecting their material. Lightning fruit jars, another type of Mason jar, was not as common as the screw-thread version, but they were popular for home canning in the late nineteenth and early twentieth centuries.

PET Can Be Recycled Multiple Times and Used in a Variety of Products

Recycled PET is used for many end products including fiber, fiberfill, carpet, strapping, food and non-food bottles, and thermoformed packaging such as cups and take-out containers.
PET reclaimers wash, grind and further process PET containers for re-use in new products.
PET thermoform manufactures are using increasing amounts of recycled PET in their packaging, up to 100%. NAPCOR is actively working to overcome obstacles to the recovery and reclamation of PET thermoforms.

PET Recycling Not Only Saves Energy and Reduces Emissions, it Creates Domestic Jobs

For every pound of recycled PET flake used, energy use is reduced by 84%; greenhouse gas emission by 71%.
The recycling of all materials creates 459,131 jobs and 10.3 billion in US domestic tax revenues, according to the Institute of Scrap Recycling Industries 2011 Report.

PET is polyethylene terephthalate.
It's a plastic resin and the most common type of polyester. Two monomers—modified ethylene glycol and purified terephthalic acid—are combined to form the polymer called polyethylene terephthalate. PET was discovered and patented in England in 1941.

PET is the plastic labeled with the #1 code.
Many beverages, food items and other consumer products are delivered in bottles or packages made from PET. The #1 code is usually found on or near the bottom of the container.

PET makes good packages for food and non-food items.
Manufacturers like it because it's safe, strong, transparent and versatile. Customers choose it for its safety, light weight, resealability, shatter-resistance and recyclability. Up to 100% of a PET package can be made from recycled PET, and the material can be recycled again and again.

PET can be recycled into many new products.
It's used to make new bottles, but recycled PET can also be made into fiber for carpets; fabric for t-shirts or fleece jackets; fiberfill for sleeping bags, winter coats, and dog beds; industrial strapping; sheet and thermoformed (clam shell) packaging; and automotive parts such as headliners, bumpers, and door panels.