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Manufacturing process of Nail Polish

Fasna 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

Classification

Pearled nail lacquers

Creamy nail lacquers

Ingredients

Lacquer base

Colouring agents

Other formulating agents

Film former ResinSolventplasticizer

DyesPigments

Perfume

Ingredient type Typical % FunctionSolvent 70-80% 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 polish

Colorant 5% Colorants are available as predispersed liquids.

Resin 12% 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.

Plasticizer 1% Added to keep the product soft and pliable. Typically dibutyl phthalate is used.

Suspending agent Up to 7% The pigments are suspended rather than dissolved into the varnish. Clays such asBentonite and hectorite are used to stabilize the suspension

Filler 2% 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 aspects

Manufacture 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 area

Filling

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-1

Www.Examiner.Com/article/benefits-of-nail-polish