manufacturig process of nail polish

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Manufacturing process of Nail PolishFasna K.PA batchRoll no. : 22

Nail polish (also called nail varnish or enamel) is a lacquer. Varnishes are produced in a variety of colours and finishes such as clear, metallic and pearlescent. There are certain nail polishes that help to strengthen and enhance the growth of our nails. These have strengthening fibres and proteins which prevent nails from chipping, breaking or splitting and thus promote healthy growth of the nails.Introduction

History Nail colouring may have originated with the Chinese in 3000 B.C. Nail polish is invention of 20th century. Colouring of nails is not a new concept. In ancient days upper class of Egypt used henna to colour hair and nails. The Japanese and Italians are thought to have been the first ones to use nail polish. The Chinese used a color lacquer, made from a combination of Arabic gum, egg whites, gelatin and beeswax. They also used a mixture consisting of mashed rose, orchid and impatiens petals combined with alum.

When applied to nails for a few hours or overnight, leaves a color ranging from pink to red. The Egyptians used reddish-brown stains derived from henna to color their nails as well as the tips of their fingers. Chinese royalty used gold and silver to improve their nails. In ancient Egypt, nail color represented your social class. Queen Nefertiti, polished her nails ruby red and queen Cleopatra polished hers a deep rust red. Women in the lower rank, colored their nails a pale color.History

ClassificationPearled nail lacquers

Creamy nail lacquers

Ingredients Lacquer base

Colouring agents

Other formulating agentsFilm former ResinSolventplasticizerDyesPigmentsPerfume

Ingredient typeTypical %FunctionSolvent70-80%Common solvents are acetone, ethyl alcohol, ethyl acetate and n-butyl acetate.Additional solvents such as toluene and isopropyl alcohol can also be used as diluents (toAdjust final viscosity)

Raw material for nail polishColorant5%Colorants are available as predispersed liquids.

Resin12%Nitrocellulose is the main resin used, producing a hardwearing, glossy, non-toxic film withGood adhesion. Additional secondary resins are often used to modify the filmCharacteristics to improve flexibility, gloss, ease of application (brush ability), resistance toChipping, adhesion etc. Recent developments include the introduction of other resinsSuch as methacrylates and vinyl polymers to replace the nitrocellulose.

Plasticizer1%Added to keep the product soft and pliable. Typically dibutyl phthalate is used.Suspending agentUp to 7%The pigments are suspended rather than dissolved into the varnish. Clays such asBentonite and hectorite are used to stabilize the suspensionFiller2%Silica and other fillers may be added. Some fillers may be used to obtain special effectsSuch as pearlescence, metallic finish etc.

Grinding of pigments Manufacture of nail lacquers Mixing of pigments with lacquer Safety aspectsManufacture of nail polish

Add 75% of the solvent and whole of the dilute in a mixer. Mix well.

Nitrcellulose is then added with stirrer on

Solvent is added

Plasticizer is added

Resin is added

Mixing is continued for several hours until solution of all ingredients is complete

Clear lacquer is formed

Passed through filter press or centrifuged

Pigmented chips or concentrated tinters are added and mixing is continued

Nail lacquer product is formed

Steps :

Since nail lacquers are highly inflammable, filling, capping and packaging must be carried out under fire proof and explosion proof conditions.

Proper care and precautions should be followed such as good ventilation, proper electrical wiring and prohibition of cigarette smoking in the working areaFilling

Glass bottles with a brush applicator is the most conventional container which is used for the packaging of nail lacquers.

The capacity varies from 8ml to 18ml

The applicator consists of an air tight aluminium canister with an acrylic fibre tip or nib which applies polish directly to nails.Packing and labeling

References Cosmeticsfornail.Pdf Www.Womenjunction.Com/topic/nail/ingedients-in-nail-polish/ www.Chemistryislife.Com/the-chemistry-of-nail-polish-1Www.Examiner.Com/article/benefits-of-nail-polish