John Mercer (21 February 1791 – 30 November 1866) was an English dye and fabric

chemist A chemist (from Greek ''chēm(ía)'' alchemy; replacing ''chymist'' from Medieval Latin ''alchemist'') is a scientist trained in the study of chemistry. Chemists study the composition of matter and its properties. Chemists carefully describe th ...

and fabric printer born in

Great Harwood Great Harwood is a town in the Hyndburn district of Lancashire, England, located north east of Blackburn and adjacent to the Ribble Valley. Great Harwood is the major conurbation of the 'Three Towns'; the three towns being Great Harwood, Clayton- ...

Lancashire Lancashire ( , ; abbreviated Lancs) is the name of a historic county, ceremonial county, and non-metropolitan county in North West England. The boundaries of these three areas differ significantly. The non-metropolitan county of Lancashi ...

. In 1844 he developed a process for treating

cotton Cotton is a soft, fluffy staple fiber that grows in a boll, or protective case, around the seeds of the cotton plants of the genus ''Gossypium'' in the mallow family Malvaceae. The fiber is almost pure cellulose, and can contain minor perce ...

mercerisation Mercerisation is a textile finishing treatment for cellulose fabric and yarn, mainly cotton and flax, which improves dye uptake and tear strength, reduces fabric shrinkage, and imparts a silk-like luster. Development The process was devise ...

, that improves many of its qualities for use in fabrics.

Biography

John Mercer never went to school; he learned basic reading and writing from his neighbour. He was very fond of dyeing and experimented to find new methods. With the help of a textbook he taught himself the chemistry of dyes. In 1817, he discovered Antimony orange, the first good orange pigment available for cotton-fabric printing. He developed the mercerisation process in 1844, and was admitted to the

Royal Society The Royal Society, formally The Royal Society of London for Improving Natural Knowledge, is a learned society and the United Kingdom's national academy of sciences. The society fulfils a number of roles: promoting science and its benefits, re ...

, the

Philosophical Society The Royal Society of Edinburgh is Scotland's national academy of science and letters. It is a registered charity that operates on a wholly independent and non-partisan basis and provides public benefit throughout Scotland. It was established i ...

and the

Chemical Society The Chemical Society was a scientific society formed in 1841 (then named the Chemical Society of London) by 77 scientists as a result of increased interest in scientific matters. Chemist Robert Warington was the driving force behind its creation. ...

. Mercer pioneered research into

antimicrobial An antimicrobial is an agent that kills microorganisms or stops their growth. Antimicrobial medicines can be grouped according to the microorganisms they act primarily against. For example, antibiotics are used against bacteria, and antifungals ar ...

s, preventing the spread of

cholera Cholera is an infection of the small intestine by some strains of the bacterium ''Vibrio cholerae''. Symptoms may range from none, to mild, to severe. The classic symptom is large amounts of watery diarrhea that lasts a few days. Vomiting and ...

in Sykeside in 1847 with

chloride of lime Calcium hypochlorite is an inorganic compound with formula Ca(OCl)2. It is the main active ingredient of commercial products called bleaching powder, chlorine powder, or chlorinated lime, used for water treatment and as a bleaching agent. This ...

, or "calcium hypochlorite", which is today used to disinfect public swimming pools and drinking water. In 1814 he married Mary Wolstenholme; together they had six children. His wife died in 1859 and he afterwards became a juror to the second

Great Exhibition The Great Exhibition of the Works of Industry of All Nations, also known as the Great Exhibition or the Crystal Palace Exhibition (in reference to the temporary The Crystal Palace, structure in which it was held), was an International Exhib ...

in 1862, and a

justice of the peace A justice of the peace (JP) is a judicial officer of a lower or ''puisne'' court, elected or appointed by means of a commission ( letters patent) to keep the peace. In past centuries the term commissioner of the peace was often used with the sa ...

in Lancashire, continuing to give lectures at

Clayton-le-Moors Clayton-le-Moors is an industrial town in the borough of Hyndburn in the county of Lancashire, England. located two miles north of Accrington. The town has a population of 8,522 according to the 2011 census. To the west lies Rishton, to the no ...

and supporting local

Anglican Anglicanism is a Western Christian tradition that has developed from the practices, liturgy, and identity of the Church of England following the English Reformation, in the context of the Protestant Reformation in Europe. It is one of th ...

and

Methodist Methodism, also called the Methodist movement, is a group of historically related denominations of Protestant Christianity whose origins, doctrine and practice derive from the life and teachings of John Wesley. George Whitefield and John's b ...

churches. The 1861 census records him as a 70-year-old "Chymist", living with his son John and 12 others at 29 Burlington Hotel, London (

Florence Nightingale Florence Nightingale (; 12 May 1820 – 13 August 1910) was an English Reform movement, social reformer, statistician and the founder of modern nursing. Nightingale came to prominence while serving as a manager and trainer of nurses during t ...

was next door, at No. 30). Mercer died at home in 1866 and was buried in St Bartholomew's Church, Great Harwood. Funds for his commemoration were provided by his daughter Maria, and a clock tower was unveiled in

in 1903, as well as the Mercer Hall. Mercer's cottage at Oakenshaw, Clayton-le-Moors was donated to be a museum and park.

References

External links

Biography and pictures about John Mercer
{{DEFAULTSORT:Mercer, John 1791 births 1866 deaths People from Great Harwood Fellows of the Royal Society English chemists English printers Manchester Literary and Philosophical Society 19th-century English businesspeople

Biography

References

Further reading

External links