Persil Power
Encyclopedia
Persil Power was a laundry detergent
Laundry detergent
Laundry detergent, or washing powder, is a substance that is a type of detergent that is added for cleaning laundry. In common usage, "detergent" refers to mixtures of chemical compounds including alkylbenzenesulfonates, which are similar to soap but are less affected by "hard water." In most...

 product developed and sold in the mid-1990s by Unilever
Unilever
Unilever is a British-Dutch multinational corporation that owns many of the world's consumer product brands in foods, beverages, cleaning agents and personal care products....

.

In the early 1990s, Unilever's Persil
Persil
Persil is a brand of laundry detergent currently and originally made by Henkel & Cie; but which is now also licensed for manufacture, distribution, and marketing in several countries by the Unilever Corporation. Henkel and Unilever both manufacture their own formulations...

 detergent risked losing its market-leading position as independent tests were showing the major brands to have relatively similar performance in removing stains. Unilever decided that they needed a product with an edge in stain removal. Persil's main competitor, Ariel
Ariel (laundry)
Ariel is a marketing line of laundry detergents made by Procter & Gamble. It is the flagship brand in Procter & Gamble's European, Mexican, Japanese, Brazilian, Peruvian, Turkish, Filipino, Colombian and Venezuelan portfolios. In some U.S. stores, Mexican Ariel is available.Ariel first appeared on...

, had recently introduced Ariel Ultra, the first of the "super compacts" - washing powders equipped with chemical catalysts which (according to the advertising) cleaned better than ever, with less powder. Given Ariel Ultra's success, and with Persil Micro System lagging, Unilever needed a new super-compact Persil line. Thus, Persil Power was conceived.

Unilever's research teams found a manganese
Manganese
Manganese is a chemical element, designated by the symbol Mn. It has the atomic number 25. It is found as a free element in nature , and in many minerals...

(IV)-based catalyst that sped up the decomposition of sodium perborate
Sodium perborate
Sodium perborate is a white, odorless, water-soluble chemical compound with the chemical composition 3. It crystallizes as the monohydrate, NaBO3·H2O, trihydrate, NaBO3·3H2O and tetrahydrate, NaBO3·4H2O. The monohydrate and tetrahydrate are the commercially important forms...

 and sodium percarbonate
Sodium percarbonate
Sodium percarbonate is a chemical, an adduct of sodium carbonate and hydrogen peroxide , with formula Na2CO3 · 1.5H2O2. It is a colorless, crystalline, hygroscopic and water-soluble solid...

 which act as bleach
Bleach
Bleach refers to a number of chemicals that remove color, whiten, or disinfect, often via oxidation. Common chemical bleaches include household chlorine bleach , lye, oxygen bleach , and bleaching powder...

es in the washing process, increasing the cleaning performance noticeably and allowing use of lower temperatures. http://www.ul.ie/~childsp/CinA/Issue45/detergent_giants.htm Unilever decided that the catalysing agents would be an ideal addition to the product, but had worries over such a major alteration to the formula of one of their main products (a high profile example of this being New Coke
New Coke
New Coke was the reformulation of Coca-Cola introduced in 1985 by The Coca-Cola Company to replace the original formula of its flagship soft drink, Coca-Cola...

, with a more direct example being in the late 1980s when one of Persil's competitors, Daz
Daz (detergent)
Daz is the name of a popular laundry detergent on the market in the United Kingdom and Ireland. It is manufactured by Procter & Gamble and is lower priced than P&G's main brand, Ariel...

, introduced a new formula that also increased cleaning performance, but caused allergic reactions in a small but noticeable percentage of the population). To this end they decided to split the catalyst agent (together with some fabric softening agents) into a new product, Persil Power. This
could be added to normal Persil in varying amounts depending on how tough the stains were. In May 1994, Persil Power was launched with a large publicity campaign, but a number of problems soon became apparent.

Despite the large publicity campaign, the sales of Persil and Persil Power did not significantly increase, because Persil by itself was capable of dealing with most stains. The most serious problem was that after a few washes with Persil Power, clothes first started to lose their colour definition and then their structural integrity, ripping easily under any significant stress. Effectively, washing clothes in Persil Power had the same effect as adding bleach
Bleach
Bleach refers to a number of chemicals that remove color, whiten, or disinfect, often via oxidation. Common chemical bleaches include household chlorine bleach , lye, oxygen bleach , and bleaching powder...

 to the clothes. Further testing determined that while the effects weren't apparent on new clothes (which Unilever had performed most of Persil Power's testing with) they could become very quickly apparent on older clothes. The effects were largely determined to be due to Persil Power being
a little too powerful in the recommended quantities, and a chemical reaction (which Unilever had not detected) occurring between the catalyst agents and dyes used commonly in clothes.

Considering the embarrassment the episode had caused Unilever and the prohibitive cost of redesigning the product, they decided to issue a product recall
Product recall
A product recall is a request to return to the maker a batch or an entire production run of a product, usually due to the discovery of safety issues. The recall is an effort to limit liability for corporate negligence and to improve or avoid damage to publicity...

 and then simply abandon the brand. A number of lawsuits were issued against Unilever by retail chains and consumers, but the vast majority of them were settled outside of court
Settlement (law)
In law, a settlement is a resolution between disputing parties about a legal case, reached either before or after court action begins. The term "settlement" also has other meanings in the context of law.-Basis:...

. Afterwards, Persil were able to refine their main product's formula enough to produce comparable cleaning performance without needing a catalyst. This led to a relaunch of the super-compact format as "New Generation Persil".
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