What Is Dry Cleaner Solvent?

Dry cleaning solvent refers to the solvent used in dry cleaning machines to clean clothes, which is equivalent to water in ordinary washing machines. But there are many differences. Dry cleaning solvents are liquid and can dissolve oil and dirt.

Dry cleaning solvent

Dry cleaning solvent refers to the solvent used in dry cleaning machines to clean clothes, which is equivalent to water in ordinary washing machines. But there are many differences. Dry cleaning solvents are liquid and can dissolve oil and dirt.

Chinese name

Dry cleaning solvent

Foreign name

Dry cleaning slovent

Types of

Organic solvents

Form

Liquid

Dry cleaning solvents are

1. The cleaning ability, I believe that everyone has understood enough about this, that is, the ability to remove stolen goods from clothes.

2. Specific gravity or

Development history of tetrachloroethylene dry cleaning solvents

Tetrachloroethylene is still the solvent of choice for most laundries. There are many reasons. It has the best cleaning ability, it can dry quickly and can safely wash most clothes, including the most delicate fabrics like silk, leather, fur. This is due to the refrigeration technology of tetrachloroethylene dry cleaning. Driven by environmentalists, government agencies have been concerned about the potential threat of tetrachloroethylene to human health for many years. These are all happening today when the new 4th and 5th generation dry cleaning machines reach their peak efficiency and are the safest at any time. Because all volatilization is fully controlled, the tetrachloroethylene exhaust gas is negligible at the end of the laundry cycle. This is obvious. These dry cleaning machines must be used in a professional manner and equipped with all environmental protection functions such as activated carbon adsorption devices. These devices must be maintained and function effectively. Tetrachloroethylene dry cleaning solvent has been applied to the action of dry cleaning machines. Although many people pointed out that tetrachloroethylene dry cleaning solvent is harmful to the human body, what harm does it have on the human body?

In 1690, the organic solvent-turpentine extract was first applied to degreasing clothes

In 1821, Michelle synthesized tetrachloroethylene

In 1840, JOLLY-BELIN applied turpentine as a dry cleaning solvent to commercial dry cleaning in Paris.

In 1869, PULLAR designed electromechanics for dry cleaning

In 1879, at least one dry cleaning plant was operated in the United States

LATE CENTRY: Turpentine, camphor oil, benzene, naphthol, kerosene, and white gasoline are used as dry-clean gasoline. Rinse clothes in a container containing dry-cleaning solvents, and hang them in a warm environment. Carbon chloride as a dry cleaning solvent and pre-stain remover

Prior to 1900, white gasoline was used as the main dry cleaning solvent in the United States. In order to avoid fire, the design of a safe dry cleaning device for white gasoline dry cleaning was on the agenda.

In 1903, the dry-cleaning operation applied pressure theory

In 1905, diatomite was used for the treatment of dirty solvents

In 1915, the US dry cleaning solvent white gasoline consumed 12,000 gallons

In 1920, the filter bag was first applied to the purification solvent, the filter powder was applied for the first time, and the drying device was designed for the first time.

In 1924, JACKSON and Stall developed the high-flash point petroleum dry-cleaning solvent, which is known as Stall.

On March 1, 1928, the United States applied a large amount of Stauer petroleum solvents

In 1930, the United States applied trichloroethylene as a dry cleaning solvent, but its application was limited due to its hazards

In 1934, the United States applied tetrachloroethylene as a dry cleaning solvent

In 1940, 45 million pounds of carbon tetrachloride was applied in the United States in dry cleaning; 12 million pounds of tetrachloroethylene and 5 million pounds of trichloroethylene

1940, Research on Dry Cleaning Aids; Research on Tetrachloroethylene Distillation Tanks; Research on Flat Filter Sieves

In World War II, the use of tetrachloroethylene partially replaced petroleum solvents because the war caused oil shortages

In 1948, tetrachloroethylene replaced carbon tetrachloride in dry cleaning

In 1959, Stauer's high-flash point petroleum solvent 140-F was well known in the United States. It applied 15 million pounds of tetrachloroethylene; 15 million carbon tetrachloride.

In 1950, the application of the toxicity of carbon tetrachloride to dry cleaning was discovered

In 1955, the United States still applied petroleum solvents in dry cleaning, which consumed 145 million gallons.

In 1960, Whirlpool developed a coin operated dry cleaning machine

90% of applications in 1962, in the United States

E. 1964 I. DU has developed F-113 as a dry cleaning solvent

In 1966, Germany developed a fluorocarbon dry cleaning solvent

In 1968, Germany developed dry-in and dry-out dry cleaners

1970, development of the third generation of dry cleaning machines

In 1975, a barrel of tetrachloroethylene could wash 8,000 pounds of clothing. Sixteen years ago, it could only wash 500 pounds of clothing.

In 1974, a law restricting washing wastewater was introduced

In 1980, a centrifugal filter was developed, and 1,1,1-trichloroethane was used in dry cleaning solvents, but the use of tetrachloroethylene was limited

In 1985, the EPA issued a report on the air pollution of tetrachloroethylene, which was regulated by the Clean Air Act

In 1986, statistics from the United States indicated that 86.7% of tetrachloroethylene, 2.2% of F-113, 0.2% of TCA, and 10.8% of petroleum solvents

In 1986, U.S. dry cleaners concentrated waste tetrachloroethylene at government disposal sites to avoid harm

In 1987, 27 countries reduced carbon tetrachloride to 50%. From 1986 to 1999, this also affected trichloroethylene and trichloroethane.

In 1988, IFI announced that 70.7% of the United States turned on dry cleaning machines

In 1989, LODI, CALIFORNIA found that PCE content in drinking water was large

Tetrachloroethylene in drinking water affected people's health in 1989

In 1990, 50% of the U.S. dry cleaning industry used tetrachloroethylene solvent. EPA restricted the emission of tetrachloroethylene from the dry cleaning industry.

In 1993, the closed cycle was applied to the dry-cleaning machine discharge system. The EPA announced that dry-cleaning machines without such devices are strictly prohibited from installation and use.

In 1993, a barrel of tetrachloroethylene could wash 16,000 pounds of clothing

In 1994, EXXON Chemical Co., Ltd. began to market the high flash point petroleum solvent DF-2000.

In 1994, countries spent huge amounts on treating tetrachloroethylene-contaminated water.

In 1995, major states in the United States began to install solvent purification equipment

In 1996, the use of tetrachloroethylene in the United States was still high in dry cleaning. The United States began to phase out trichloroethane and F-113.

In 1997, tetrachloroethylene was not used as the main dry cleaning solvent in the United States.

In 1998, the application of U.S. tetrachloroethylene dry cleaning solvents was 36

In 1999, RYNEX environmentally-friendly dry-cleaning solvents were put on the market.

In 2000, PUREDRY dry cleaning solvents were launched on the market

In 2002, part of the dry cleaning of tetrachloroethylene was transformed, and from 2003 to 2020, the washing of tetrachloroethylene was phased out (not the entire world)

In 2004, IMPRESS dry cleaning solvents were launched on the market

In 2006, the installation of new dry cleaning machines banned the use of tetrachloroethylene as a dry cleaning solvent (EPA)

October, 2006, DRYSOL replaces dry cleaning solvents on the market

June, 2008, Phase out of the failure line of tetrachloroethylene conversion machines

Hydrocarbon solvent

In today's dry cleaning market, hydrocarbon solvents are the second choice and are being used by many dry cleaners looking for other effective solvents other than tetrachloroethylene. The effect of hydrocarbons is similar to tetrachloroethylene, but the cleaning ability of hydrocarbon solvents is not the same as that of tetrachloroethylene.

Well, more pre-spotting and post-spotting are required. In addition, due to weaker volatility, the washing time will be longer. Long ago, petroleum solvents have appeared in the dry cleaning industry. They have widely replaced synthetic chlorinated solvents, which eliminates the risk of fire in low flash point petroleum solvents. However, with the advent of the latest high-purity synthetic hydrocarbon solvents, like those sold in the US and European markets, hydrocarbons characterized by flash points above 56 ° C are safe. As a manufacturer of dry-cleaning machines, some of the advantages of our dry-cleaning machines in terms of operating safety are: all of our hydrocarbon dry-cleaning machines are specifically designed for use with such solvents, and the machines are equipped with more additional safety features. Hydrocarbon has good oil-soluble detergency, but it does not have good water-soluble detergency. Their low density gives them the ability to remove insoluble dirt and provides good mechanical action during washing. A good dry-cleaning aid can help the solvent carry the right amount of water to help remove water-soluble dirt.

Recyclable silicon-based solvents

It is odorless, tasteless, non-toxic, flexible to wash and can keep the color of washed clothes bright. Close to silicone solvents for antiperspirants and deodorants. These substances can also be found in Hualing: Lingpin and other personal care products. The low surface tension of this solvent causes the fibers to wet quickly. Such characteristics and density are very close to water. Together with proper mechanical action, it provides very good removal of insoluble dirt. Its solubility is low, but the effect of removing oil-soluble dirt is also okay. Like most other solvents, it is moisture-free and requires a suitable dry-cleaning aid to bring in water to remove water-soluble soils. Since the density of this solvent is close to that of water, it is difficult to separate the silicon-based solvent from the buffalo. Just like hydrocarbon solvents, silicon-based solvents also have flash points. A wide variety of additives and variable operations improve the cleaning capacity of each laundry process. Neither the current solvent nor the latest solvent can dissolve and remove all stains on clothing. This is why various additives are used to improve its cleaning effect. These additives are called dry cleaning auxiliaries, or surfactants, etc., and are used to increase the solvent effect of dissolving stains.

Silicone-based solvent is also very safe and environmentally friendly. It is a changed liquid silicon solvent. It is similar to basic materials used in underarm deodorants, makeup, shaving lotions, etc. It is safe and environmentally friendly and has no environmental pollution.

Petroleum and hydrocarbon solvents

In the 1920s, the petroleum solvent Stauer was used in dry cleaning, and now a new type of petroleum solvent is used. Petroleum solvents are flammable. If the solvent is sufficiently heated, the flash point is the ignition point of the vapor at a certain pressure. Based on this, the explosion-proof and flame-proof devices of dry cleaning equipment are necessary. Due to the low solubility of petroleum solvents, it is suitable for most clothing fibers, plastics, dyes, etc. Due to the drying time of at least 30 minutes, the entire washing

It takes one hour or more, so the same equipment capacity, the actual loading capacity of petroleum solvent dry cleaning equipment is less than the tetrachloroethylene system. DLI advises you to take this into consideration when deciding on the actual need for equipment loading when dry cleaning with tetrachloroethylene or petroleum solvents. Petroleum solvents have different flash points. High flash point solvents are used in petroleum dry cleaning machines that lack explosion protection. The risk of fire hinders the application of low flash point petroleum solvents. Only high flash point petroleum solvents are allowed for dry cleaning, that is, The petroleum solvent D60 by flash point is much safer than D40 when used.

Petroleum solvents are not ozone-depleting substances. Petroleum solvents are safe for washing almost any laundry, and there is a wide range of detergents. Because the mixture of petroleum solvent vapor and air can form explosive gas, it must be controlled in the DRY-TO-DRY system, and the flame after the explosion must be extinguished by a better design. Use a good petroleum solvent to prevent bacteria from causing odor.

Greenearth dry cleaning solvents

GREENEARTH has been used as a new type of dry cleaning solvent for at least 10 years. Based on the basis of silicon chemistry, D5decamethylcyclopentasiloxane, Greenearth solvent is flammable and has a high flash point of 170 degrees Fahrenheit. Most fibers and dyes are safe. The washing cycle of greenearth reported in IFI is 53-58 minutes, also considering the load. Greenearth solvents must be used in the third generation of dry cleaning machines, and fire protection regulations rarely mention the opinions that everyone agrees with. RCRA does not

It is considered that there is a risk of waste discharge, and further research is needed.

Carbon dioxide solvent dry cleaning system

Micell Technoiogies first applied carbon dioxide dry cleaning in 1999. This system must have a high pressure to compress carbon dioxide as a liquid. Today, the United States counts 40--50 dry cleaning systems. We do nt know the United States has this producer. SAILSTAR) supplied this equipment to the American dry cleaning industry, July 2006 R. R. Street & Co.Inc. Industrialized, the first installation was installed in the summer of 2007,

The solvation program is a hydrogenation system. A component of an ether compound is used in a dry cleaning system. After washing, carbon dioxide is automatically dispersed and escaped. Carbon dioxide dry cleaning solvent pressure is 400-600 Pa, so the equipment must have the level to withstand this pressure, the cost of US dollars, in 2007 RRStreet spent $ 150,000 to build such a dry cleaning equipment. Because of its low solubility, the carbon dioxide dry cleaning system has more stain removal treatment than other dry cleaning solvent systems.

It is added for the higher solubility of water and dry cleaning detergents. The use of entrainer obviously helps to wash away the stains. Carbon dioxide dry cleaning does not require drying after washing, so it is 30 minutes or more shorter than other solvents. If there are any leaks in the dry cleaning equipment, the liquefied carbon dioxide will flash out immediately under high pressure, no carbon dioxide will reach the ground, and it will be less able to mix with water and soil. There are no restrictions on the use of liquefied carbon dioxide as dry cleaning solvents. Level. However, California is also assessing carbon dioxide emissions from dry cleaning due to its greenhouse gas effects. DLI collects ACF economic impact data based on this calculation. Even if all of them are converted to carbon dioxide dry cleaning, the global temperature impact is very small. Because carbon dioxide dry cleaning equipment is expensive and has a relatively low cleaning capacity, the value of dry cleaning is only one of the most environmentally friendly (green) washing systems. For most practitioners, this environmental protection comes at a high cost and a dull, lifeless cleaning application.