about pharmaceutical packaging materials...

1. PHARMACEUTICAL PACKAGING
AND MATERIALS FOR
CONSTRUCTION OF
PHARMACEUTICAL EQUIPMENT
Under the guidance of
Dr.R.SANTOSH KUMAR M.Pharm,Ph.D.
CH.DIVAKAR RAO
M.PHARM (Pharmaceutical Technology)
Dept. of Pharmaceutical Technology
Regd. No.: 610233701005
SRINIVASA RAO COLLEGE OF PHARMACY

2. INTRODUCTION:
 Pharmaceutical packaging can be defined as the economical means of
providing presentation, protection, identification , information,
containment, convenience ,compliance , integrity and stability of the
product.
o The selection of a package therefore begins with a
determination of the product’s physical and chemical
characteristics, its protective needs, and its marketing
requirements.

3. The materials selected must have following
characteristics:
 They must protect the preparation from environmental conditions.
 They must not be reactive with the product.
 They must not impart to the product tastes or odors.
 Must be non toxic.
 They must be “FDA” approved.
 They must meet applicable tamper – resistance requirements.
 They must be adaptable to commonly employed high-speed packaging
equipment

4. Types of containers:
Containers are divided into following types on the basis of their utility :
Well – closed containers: A well-closed container protects the contents
from loss during transportation,handling,storage or sale.
Single dose containers : These containers are used to supply only one of
medicament and hold generally parenteral products.
E.g. ampoules and vials

5. Multi dose containers: These containers allow the withdrawal of dose at
various intervals without changing the strength, quality or purity of
remaining portion. these containers hold more than one dose and are
used for injectables. E.g. vials
Light-resistant containers: These containers protect the medicament from harmful
effects of light. These containers are used to store those medicaments which are photo-
sensitive.

6. Air-tight containers: These are also called hermetic containers. These containers have
air-tight sealing or closing. These containers protect the products from dust, moisture
and air. Where as air-tight sealed containers are used for injectables,air-tight closed
containers are meant for the storage of other products.
Aerosol containers: These containers are used to hold aerosol products. These
containers have adequate mechanical strength in order to bear the pressure of
aerosol packing.

7. TYPES OF PACKAGING :
Primary packaging :
Primary packaging is the material that envelopes the product and holds it.
This usually is the smallest unit of distribution or use and is the package which
is in direct contact with the contents.

8. Secondary packaging
Is outside the primary packaging-perhaps used to group primary packages
together.

9. Tertiary packages:
Is used for bulk handling, warehouse storage and transport shipping. The most
common form is a palletized unit load that packs tightly into the container.

10. QUALITIES OF GOOD CONTAINER:
The container must be neutral towards the material which is stored in it.
The container must not interact physically or chemically with the substance
which it holds.
It should help in maintaining the stability of product against the
environmental factors which causes its deterioration.
It should be made of materials which can withstand wear and tear during
normal handling.
It should be able to withstand changes in pressure and temperature.
The materials used for making of the container must be non-toxic.

11. MATERIALS USED FOR MAKING OF CONTAINERS:
GLASS-
e.g.bottles,vials,ampules,syringes,i.v containers, aerosol containers.
PLASTIC-
e.g.bottlespouches,tapes,tubes,aerosolcontainers,laminates.

12. RUBBER-
e.g. closures, caps,vialswrapers,plungers.
Metals-
e.g. collapsabletubes,foils,needles,aerosol containers

13. Paper or cardboard-
e.g. secondary packaging
labels,inserts,displayunits,pouches,laminates,cartons,carrogated
boxes,foils,paper drums

14. GLASS CONTAINERS:
Composition of glass:
Glass is composed principally of sand, soda ash, lime stone and
cullet.
Sand is almost pure sillica,soda ash is sodium carbonate, lime
stone is calcium carbonate.
Cullet is broken glass that is mixed with the batch and acts as
fusion agent for the entire mixture.

15. Manufacture of glass:
The four basic processes used in the production of glass are:-
1. Blowing uses compressed air to form the molten glass in the cavity of
metal mold.
2. In drawing, molten glass is pulled through dies or rollers that shape the
soft glass.
3. In pressing mechanical force is used to press the molten glass against
the side of a mold.
4. Casting uses gravity or centrifugal force to cause molten glass to form
in the cavity of mold.

16. TYPES OF GLASSES:
Type I-borosilicate glass
It is highly resistant glass.
It has high melting point so can with stand high temperatures.
It is more chemically inert than the soda lime glass.
It can resist strong acids,alkalies and all types of solvents.
Reduced leaching action.
USES:
Laboratory glass apparatus.
For injection and water for injection.

17. Type II-treated soda lime glass
Type II containers are made of commercial soda lime glass that has been dealkalised or
treated to remove surface alkali.
The de-alkalizing process is know as sulfur treatment.
Sulfur treatment neutralizes the alkaline oxides on the surface, rendering the glass
more chemically resistant.
Uses:
Used for alkali sensitive products.
Infusion fluids, blood and plasma.
Large volume container.

18. Type-III regular soda lime glass
Containers are untreated are made of commercial soda lime glass of
average are better than average chemical resistance.
It contains high concentration of alkaline oxides and imparts alkalinity to
aqueous substances.
Flakes separate easily.
USES:
For all solid dosage forms.
For oily injections.

19. Type NP-general purpose soda lime glass
Containers are made of soda lime glass supplied for non parental products,
intended for oral or topical use.
USES:
FOR ORAL USE.
TOPICAL PURPOSE.

20. STANDARDS:
Test Method Glass type Over flow O.O 2 M
capacity H2SO4
required (ml)
Powdered Type I All 1
Glass test
Water attack Type II ≤ 100 0.7
test > 100 0.2
Powdered Type III All 8.5
Glass test
Powdered Type IV /NP All 15
Glass test

21. ADVANTAGES OF GLASS:
They are quite strong and rigid.
They are transparent which allows visual inspection of the contents.
They are available in various shapes and sizes.
They can withstand the variation in temperature and pressure during
sterilization.
They are economical and readily available.
They can protect the photosensitive medicaments from light during their
storage.
They do not deteriorate with age.

22. DISADVANTAGES OF GLASS:
They are brittle and break easily.
They may crack when subject to sudden changes in temperatures.
They are heavier in comparison to plastic containers.

23. PLASTIC CONTAINERS:
Plastics are synthetic polymers of high molecular weight.
Plastics as packaging have proved useful for a number of reasons,
including the ease with which they can be formed, their high quality and the
freedom to design.
Plastic containers are extremely resistant to breakage and offer safety
consumers.

24. PLASTIC ARE OF TWO FROMS:
1. Amorphous plastic.
2. Crystalline plastic.
AMORPHOUS PLASTIC:
 They give good transparency.
 They are hard but posses little brittleness.
 They are more permeable to gases and vapour.
 They are of less inert.

25. CRYSTALLINE PLASTICS:
For photo sensitive drugs this type of plastics are selected.
They are opaque.
They are more flexible.
They are less permeable to gases and vapour.
They are more inert.

26. Plastic containers for pharmaceutical products are primarily
made from the following polymers:
 polyethylene
 polypropylene
 poly vinyl chloride
 polystyrene
 polymethyl methacrylate
 amino formaldehyde
 poly amides

27. TYPES OF PLASTICS:
Thermoplastic type :-
On heating, they are soften to viscous fluid which hardens again on
cooling.
e.g. polyethylene ,PVC ,Polystyrene, polypropylene, Polyamide,
Polycarbonate.
Thermosetting type :-
When heated , they may become flexible but they do not become liquid.
Phenol formaldehyde ,urea formaldehyde, melamine formaldehyde

28. 1) Polyethylene:
 Its is flexible, very light but tough plastic.
 It is impermeable to water vapour and does not deteriorate with age
unless it is exposed to sunlight for long time.
 It has permeability to certain oils and preservatives.
 Its melting point being in the range of 1100 to 1500c
 It has high melting point and can sterilized by autoclaving.
 It is divided into 1. HDPE (HIGH DENSITY POLYETHYLENE )
2. LDPE ( LOW DENSITY POLYETHYLENE )
 HDPE : Inert, low cost, tough in nature.
 LDPE : Inert, great resistant to gases, low cost.

29. POLYVINYL CHLORIDE (PVC ):
It is less flexible , heavier and more permeable to water vapour as
compared with normal polythene.it has high clarity and not effected
by sunlight. It is used for preparing eye ointment tubes.

30. POLYMETYL METOCARYLATE(PMMA):
It is hard , strong but light, transparent plastic.
It softens at about1000c.
It is used for preparing bottles and tubes.

31. POLYSTYRENE:
It is a hard, rigid , light material.
It can be easily molded into any shape.
So it is used for preparing bottles, tubes,jars,boxes and
syringes.

32. POLYPROPYLENE:
It is similar to high density polythene.
It is very light and heat resistant.
Its melting point is 1700c
It has high melting point and can sterilized by autoclaving.
So it is used for preparing squeeze bottles, tubes, and
syringes.

33. POLYCARBONATE:
It is transparent, has high impact strength and very good heat
resistance.
It is used in the preparation of surgical equipment.

34. ADVANTAGES OF PLASTIC:
They are light in weight and can be handled easily.
They are transported easily.
They are unbreakable.
They available in various shapes and sizes.
They are resistant to inorganic chemicals.

35. DISAVANTAGES OF PLASTIC:
They are permeable to water vapour and atmospheric
gases.
They are poor conductor to heat.
They may absorb chemical substances, such as
preservative for solutions.
They are relatively expensive.

36. DRUG-PLASTIC CONSIDERATIONS
A packaging system must protect the drug without altering the
composition of the product until the last dose is removed.
Drug-plastic considerations have been divided into five categories:
1. Permeation
2. Leaching
3. Sorption
4. Chemical reaction
5. Alteration

37. Permeation:
It is the transmission of gases, vapors or liquids through plastic
packaging material.
Permeation of water vapor and oxygen through plastic wall into the drug
is a major problem is the dosage form is sensitive to hydrolysis and
oxidation.
The volatile ingredients might change when stored in plastic containers
and the taste of the medicinal products may change for the same reason
of permeation.

38. Leaching:
Some plastic containers have one or more ingredients added to stabilize
it, these may leach into the drug product.
Problems may arise with plastics when coloring agents are added in
small quantities to the formula.
Particular dyes may migrate into the parental solution and cause a toxic
effect.

39. Sorption:
This process involves the removable of constituents from the drug
product by the packaging material.
The therapeutic efficacy of the product may be reduced due to sorption.
Sorption may change the chemical structure, Ph., solvent system,
concentration of active ingredients and temperature etc…

40. Chemical reactivity:
Certain ingredients in plastic formulations may react chemically with
one or more components of the drug product.
Even in micro quantities if incompatibility occurs may alter the
appearance of the plastic or the drug product.

41. Modification:
The physical and chemical alteration of the packaging material by
the drug product is called modification.
Some solvent systems found to be considerable changes in the
mechanical properties of the plastics.
For example oils have a softening effect on polyethylene,
hydrocarbons attack polyethylene and PVC.

42. METALS:
Metals are used for construction of containers. The metals
commonly used for this purpose are aluminium ,tin plated
steel, stainless steel, tin and lead.
ADVANTAGES:
They are impermeable to light, moisture and gases.
They are made into rigid unbreakable containers by
impact extrusion.
They are light in weight compared to glass containers.
Labels can printed directly on to their surface.

43. DISADVANTAGES:
They are expensive.
They react with certain chemicals.

44. COLLAPSIBLE TUBES
METAL
The collapsible metal tube is an attractive container that permits
controlled amounts to be dispensed easily, with good reclosure,and
adequate protection of the product.
It is light in weight and unbreakable and lends itself to high speed
automatic filling operations.
Any ductile metal that can be worked cold is suitable for collapsible
tubes, but the most commonly used are tin, aluminium and lead. Tin is
most expensive and lead is cheapest.

45. Tin:
Tin containers are preferred for food, pharmaceuticals and any product
for which purity is considered.
Tin is the most chemically inert of all collapsible metal tubes.

46. Aluminum:
Aluminum tubes offer significant savings in product shipping costs
because of their light weight.
They are attractive in nature.

47. Lead:
Lead has the lowest cost of all tube metals and is widely used for non
food products such as adhesives,inks.paints and lubricants.
Lead should never be used alone for anything taken internally because
of the risk lead poison.
With internal linings, lead tubes are used for products such as chloride
tooth paste.

48. CLOSURE:
A closure is the part of the package which prevent the contents from escaping
and allow no substance to enter the container.
Closures are available in five basic designs
1. Screw on, threaded or lug
2. Crimp on(crowns)
3. Press on(snap)
4. Roll on and
5. Friction

49. Threaded screw cap:
When a screw cap is applied, its threads engaged with the corresponding threads
molded on the neck of the bottle.
A liner in the cap, pressed against the opening of the container, seals the product in
the container and provide the resistance to chemical and physical reaction with the
product.
The screw cap is commonly made of metal or plastics. The metal is usually tin
plate or aluminum and in plastic is thermoplastic and thermosetting material.

50. Lug cap:
The lug cap is similar to the threaded screw cap and operates on the same
principle.
It is simply an interrupted thread on the glass finish, instead of a
continuous thread.
Unlike the threaded closure, it requires only a quarter turn.
The lug cap is used for both normal atmosphere pressure and vacuum
pressure closing.

51. Crown caps:
This style cap is commonly used as a crimped closure for beverage bottles.

52. Roll-on closures
The aluminum roll on cap can be seal securely, opened easily and
resealed effectively.
Resealable,non resalable and pilfer proof types of roll on closures are
available for use on glass or plastic bottles.

53. Pilfer proof closures
It is similar to roll on closure but has a greater skirt length.
This additional length extends below the threaded portion and fastened to the basic
cap by the series of narrow bridges.
When the closure is removed the extra portion remains in the space on neck of the
container, this indicates that the package has been opened.

54. CLOSURE LINERS:
A liner may be defined as any material that inserted in a cap to effect a seal
between the closure and the container.
It is of two types:
1. Homogeneous liner
These are one piece liners available as disk or a ring of rubber or plastic.
It can be withstand high temperature sterilization.
2. Heterogeneous liners
These are composed of layers of different materials chosen for specific
requirements.
It consists of facing and backing. Facing is in contact with product and backing
provides questioning effect.

55. RUBBER:
Rubber is used mainly for the construction of closure meant for vials,
transfusion fluid bottles, dropping bottles and as washers in many other
types of product.
BUTYL RUBBER:
Advantages:
Permeability to water vapor .
Water absorption is very low.
They are relatively cheaper compared to other synthetic rubbers.
Disadvantages:
Slow decomposition takes place above 1300C.
Oil and solvent resistance is not very good.

56. NITRILE RUBBER:
Advantages:
Oil resistant due to polar nitrile group.
Heat resistant.
Disadvantages:
Absorption of bactericide and leaching of extractives are considerable.
CHLOROPRENE RUBBERS:
Advantages:
Oil resistant.
heat stability is good.

57. SILICON RUBBERS:
Advantages:
Heat resistance.
Extremely low absorption and permeability of water.
Excellent aging characteristic.
Disadvantages:
They are very expensive.

58. TAMPER RESISTANT PACKAGING:
The requirement for tamper resistant packaging is now one of the
major considerations in the development of packaging for
pharmaceutical products.
Tamper resistant package is one having an indicator to entry in
which, if breached or missing, can reasonably be expected to provide
visible evidence to consumers that tampering has occurred.

59. FDA approves the following configurations as tamper
resistant packaging:
1. Film wrappers
2. Blister package
3. Strip package
4. Bubble pack
5. Shrink seals and bands
6. Oil, paper, plastic pouches
7. Bottle seals
8. Tape seals
9. Breakable caps
10. Aerosol containers

60. 1. Film wrapper
Film wrapping has been used extensively over the
years for products requiring package integrity or
environmental protection.
It is categorizes into following types:
i. End folded wrapper
ii. Fin seal wrapper
iii. Shrink wrapper

61. End folded wrapper
The end folded wrapper is formed by passing the product into a sheet
of over wrapping film, which forms the film around the product and
folds the edges in a gift wrap fashion.
The folded areas are sealed by pressing against a heated bar.
The materials commonly used for this purpose are cellophane and
polypropylene.

62. Fin seal wrapper
The seals are formed by crimping the film together and sealing
together the two inside surfaces of the film, producing a fin seal.
Fin sealing is superior than end folded wrapper
With good seal integrity the over wrap can removed or opened by
tearing the wrapper.

63. Shrink wrapper
The shrink wrap concept involves the packaging of the product in
a thermoplastic film that has been stretched and oriented during its
manufacture.
An L shaped sealer seals the over wrap
The major advantage of this type of wrapper are the flexibility and
low cost of packaging equipment.

64. BLISTER PACKAGE:
Blister package provides excellent environmental protection, esthetically
leasing and efficacious appearance.
It also provides user functionality in terms of convenience ,child
resistance and tamper resistance
The blister package is formed by heat softening a sheet of
thermoplastic resin and vacuum drawing the soften sheet of plastic into a
contoured mold.
After cooling the sheet is released from the mold and proceeds to the
filling station of the machine.
It is then lidded with heat sealable backing material

65. Peel able backing material is used to meet the requirements of
child resistance packaging.
The material such as polyester or paper is used as a component of
backing lamination.
Materials commonly used for the thermo formable blister are PVC,
polyethylene combinations , polystyrene and polypropylene.

66. STRIP PACKAGE
A strip package is a form of unit dose packaging that is commonly used
for the packaging of tablets and capsule.
A strip package is formed by feeding two webs of a heat sealable flexible
through heated crimping roller.
The product is dropped into the pocket formed prior to forming the final
set of seals.
A continuous strip of packets is formed in general.

67. The strip of packets is cut into desired number of packets.
Different packaging materials used are:
paper/polyethylene/foil/PVC.

68. BUBBLE PACK
A bubble can be made usually by sandwiching the product between a
thermo formable, extensible or heat shrinkable plastic film and a rigid
backing material.
The product is dropped into pocket which is then sealed with heat
sealed coated paper board.

69. SHRINK BANDING
The shrink band concept make use of heat shrinking characteristics of a
stretch oriented polymer usually the PVC.
The polymer is manufactured as a extruded oriented tube in a diameter
slightly larger than the cap and neck ring of the bottle to be sealed.

70. BOTTLE SEALS
A bottle may be made tamper resistant by bonding and inner seal to the
rim of the bottle in such a way that the product can only be attained by
destroying the seal.
Typically glassine liners are two ply laminations use in two sheet of
glassine paper bounded together with wax or adhesive.
For pressure sensitive inner seals pressure sensitive adhesive is coated on
the surface of the inner seal as an encapsulated adhesive.

71. TAPE SEALS
It involves the application of glued or pressure sensitive tape or label
around or over the closure of the package which is to be destroyed to
obtain the product.
The paper used must often is a high density light weight paper with
poor tear strength.
Labels made of self destructing papers are available.
But these cannot survive any attempt at removal once they have
been applied.

72. BREAKABLE CAPS
Breakable closures come in many different designs.
The roll-on cap design of aluminum shell used for carbonated beverages
The bottom portion of the cap is rolled around the bottle neck finish.
The lower portion of the cap blank is usually perforated so that it
breaks away when the cap is unscrewed.
The bottom portion of the closure has a tear away strip.

73. SEALED TUBES
Collapsible tubes used for packaging are constructed of metal, plastic or
lamination of foil, paper and plastic.
Metal tubes are still used for products that required high degree of barrie
protection.
Most of these are made of aluminum.
Extruded plastic tubes are widely used for products that are compactable
and limited protection of plastic.

74. AEROSOL CONTAINER
The aerosol container used for pharmaceutical products is usually
made of drawn aluminum.
A hydrocarbon propellant in its cooled liquid phase is added to the
container along with the product.
A spray nozzle contained in a gasket metal is crimped over the opening
of the container.
A dip tube is attached inside, draw the product through the spray
nozzle.

75. The spray nozzles are usually metered to allow a specific dose to be
dispensed with each spray.

76. SEALED CARTONS
Folding paperboard cartons have been used as a secondary package for
OTC products.
The popularity is based on both functional and marketing
considerations.

77. EVALUATION OF PACKAGING
MATERIALS
TESTS FOR GLASS CONTAINERS:
1) Powdered glass test
2) Water attack test
Preparation of specimen for powdered glass test:
Rinse 6 or more containers and dry them
Crushed in to fragments
Divide 100gms of coarsely crushed glass in to
three equal parts

78. place 1 portion in a mortar
Crush further by striking 3 or 4 blows with hammer
Nest the sieves (# 20,40 at least)
Empty the mortar in to sieve 20
Shake the sieves and remove the glass particles from # 20
and 40
Crush them again and sieve them
Transfer the retained portion on # 50

79. Spread the specimen on a glazed paper
and remove iron particles with the help of magnet
Wash with 6 portions of 30ml acetone
Dry the contents for 20mins at 140oc
Transfer to weighing bottle and cool in a desiccator
Final specimen should be used in powdered glass test

80. 1) POWDERED GLASS TEST: (according to USP volume 27)
Transfer 10gms of prepared specimen in a 250ml
conical flask digested previously with high purity water in a bath
at 90o c
Add to conical flask containing 50ml high purity water
Cap all the flasks and auto clave
Adjust temperature to 150oc
Cold the temperature to 121oc for 30mins
Cool the flasks under running water

81. Wash the residue powdered glass(4 times with 15ml purity water)
Add the decanted washings to main portion.
add five drops of methyl red solution.
Titrate immediately with 0.02N sulphuric acid.
Record the volume of 0.02N sulphuric acid.
Volume does not exceed i.e. indicated in the USP as per
the type of glass concerned

82. WATER ATTACK TEST:(USP)
rinse 3 or more containers with high purity water
fill each container to 90%of its over flow capacity
cap all the flasks and autoclave for 60mints
empty the contents and cool the contents in 250ml
conical flasks to a volume of 100ml
add 5 drops of methyl red solution
titrate with 0.02N sulphuric acid while warm
record the volume of 0.02Nsulphuric acid consumed
volume should not exceed as indicated in USP as for
type of glass

83. TESTS FOR PLASTIC CONTAINERS
1.Leakage test for plastic containers(non injectables
and injectables 1996 IP):
fill 10 plastic containers with water and fit the closure
keep them inverted at room temperature for 24 hrs
no sign of leakage should be there from any container

84. 2.WATER PERMEABILITY TEST FOR PLASTIC
CONTAINERS(INJECTABLE PREPARATIONS IP
1996):
fill 5 containers with nominal volume of water and sealed
weigh each container
allow to stand for 14 days at relative humidity of 60% at 20-
250C
reweigh the container
loss of weight in each container should not be more than
0.2%

85. TESTS FOR RUBBER/RUBBER CLOSURES
1.FRAGMENTATION TEST(IP 1996):
place a volume of water corresponding to nominal volume-
4ml in each of 12 clean vials
close vial with closure and secure caps for 16hrs
pierce the closure with number 21 hypodermic needle(bevel
angle of 10 to 140c)and inject 1ml water and remove 1ml air
repeat the above operation 4 times for each closure
count the number of fragments visible to naked eye
Total number of fragments should not be more than 10

86. 2.SELF SEALABILITY TEST FOR RUBBER
CLOSURES APPLICABLE TO MULTI DOSE
CONTAINERS ONLY(IP 1996):
fill 10 vials with water to nominal volume and close
the vials with closures
pierce the cap and closures 10 times at different
places with no 21 syringe needle
immerse the vials in 0.1 %W/v solution of
methylene blue under reduced pressure
restore the nominal pressure and keep the
container for 30 min and wash the vials
none of the vial should contain traces of colored
solution

87. MATERIALS FOR CONSTRUCTION OF
PHARMACEUTICAL EQUIPMENT

88. FACTORS AFFECTING SELECTION OF MATERIALS
FOR PLANT CONSTRUCTION
 3 Types of factors:
I. Chemical factors.
II. Physical factors.
III. Economical factors.

89. CHEMICAL FACTORS:
1. Contamination of the product by material of plant lead to
instability, decomposition and physiological effect.
 E.g. presence of traces of heavy metal decompose penicillin.
 Stability of vitamins decrease in presence of metallic ions.
 The color of esters will change to pale yellow in the presence
of iron impurities.
 Esters should be processed in stainless steel.

90. 2 .The effect on the material of plant by drugs and chemicals.
 Acids, Alkali and Oxidizing agent and tannins may affect the
material of construction.
 Allows and Plastic have a corrosion resistant properties.

91. PHYSICAL FACTORS:
Adequate mechanical strength.
Erosion.
Weight.
Ease of fabrication.
Thermal expansion.
Thermal conductivity.
Cleansing.
Sterilization.
Transparency.

92. • The material should have sufficient strength
so that it can withstand the stress to which
the material is subjected in the production.
• Iron and Steel satisfy this property.
• E.g. The packing material should withstand
STRENGTH the rigors of handling and transportation.
• The equipment should have a light weight
so it is easy to transport.
• Plastic materials employed for the
manufacture of container for the use of
pharmaceuticals and cosmetics because
MASS of its light weight.

93. • There is a possibility of friction between the
moving parts.
• During milling and grinding surface wear off and
this materials will be incorporated into powder
WEAR PROPERTIES as impurities.
• The materials used for evaporators ,dryers and heat
exchanger should have a good thermal conductivity.
THERMAL • Resistant film retard the rate of heat transfer.
CONDUCTIVTY

94. • If the materials has high coefficient of expansion,
the temperature changes cause increase in stress
and risk of fracture.
• The materials should be able to maintain size and
THERMAL shape of equipment at working temperature.
EXPANSION
• It permits the visual observation of the changes
during a process.
• For this reason borosilicate glass has been used in
TRANSPENCY the construction of reactors,fermentors etc.

95. • Initial costs and maintenance of the plant must be
economical.
• Low wearing qualities and lower maintenance.
ECONOMIC
FACTORS • Higher initial cost is more economical in the long
run.
• During fabrication, the materials under go various
processes such as casting,welding,forging etc.
• Glass and plastic can be easily molded into
EASE OF containers of different size and shape.
FABRICATION

96. • Smooth and polished surfaces allow the process
of cleansing easy.
• Stainless steel and glass are easy for cleansing.
CLEANSING
• In the production of parenterals, ophthalmic
products, antibiotics and biological, sterilization is
an essential step which is obtained by
autoclaving.
• The material should be able to withstand the
STERILIZATION
steam pressure.

97. MATERIAL OF CONSTRUCTION
NON-
METALS
METALS
IN -
FERROURS NON-FERROUS ORGANIC
ORGANIC
CAST IRON
ALUMINIUM GLASS RUBBER
STEEL
CARBON
STAINLESS LEAD PLASTICS
TEEL

98. FERROUS METALS:
oWidely used because of its mechanical strength, abundant
availability and lower cost.
FERROUS METALS
CAST IRON
Carbon steel.
Carbon steel.
Stainless steel

99. CAST IRON:
 Cast iron consist of iron with a proportion of carbon.
The properties of iron depends on the amount of carbon
present.
They are hard and brittle.
Cast iron is abundantly available inexpensive.

100. • Cheap.
• Resistant to conc. Sulphuric acid, nitric
acid and dilute alkalis.
ADVANTAGES
• It has low thermal conductivity so used for
construction of outer jackets of steam
parts.
• It is very brittle so difficult to machine.
• It is attacked by dil. Sulphuric acid, nitric
DISADVANTAGES acid as well as conc. hydro chloric acid.
• It has low thermal conductivity so not used
for heat transfer in steel.
• Supports for plant.
• Jacket of steam pans.
USES • Lining with enamel, plastic or suitable
protective materials.

101. CARBON STEEL OR MILD STEEL:
 Carbon steel is an iron alloy, which contains only a small percentage of
carbon.
ADVANTAGES •Cheapest.
• Used in fabrication.
• Carbon steel has limited resistant to
corrision.It can be improved by preparing
DISADVANTAGES alloys.
• Its reacts with caustic soda, brine and
sea water.
• Used in construction of bars, pipes and
plates.
USES
• Used to fabricate large storage tanks for
water and organic solvents.

102. STAINLESS STEEL:
Steels containing 18 % of chromium and 8% of nickel and known as
“18/8 Stainless steel” , have considerable use in the pharmaceutical
industry.
Chromium and nickel, which makes the steel corrosion resistant.
Stainless steel is stabilized by the addition of titanium, or tantalum.
Minor amount of other elements such as copper, molybdenum and
selenium are added.

103. PROPERTIES OF STAINLESS STEEL:
Heat resistant.
Corrosion resistant.
Ease of fabrication.
Tensile strength.
Cleaning and sterilization.

104. • Corrosion resistant
ADVANTAGES • Heat resistant.
• Ease of fabrication.
• Ductility is poor.
DISADVANTAGES
• Not good against reducing agents.
• Sinks, bench tops, storage tanks,
USES buckets etc.

105. NON-FERROUS METALS
ALUMINIUM
LEAD

106. ALUMINIUM:
Its is cheap, light in weight and offer good mechanical
strength.
Aluminum equipment can be easily fabricated.
Aluminum can be strengthened by cold working.
Number of modification of aluminum are available.
Aluminum is non toxic to micro-organism.

107. • High resistant to atmosphere
conditions,industrial fumes,vapour and
ADVANTAGES fresh or salt waters.
• Thermal conductivity of aluminum is 60%
that of pure copper.
• Mechanical strength decrease above
1500c.
DISADVANTAGES
• Aluminum can not be used with strong
caustic solution.
• Used in heat transfer.
USES
• Used as storage containers.

108. LEAD:
It has the lowest cost.
Used as collapsible tube material particularly for non-food
products such as adhesive inks, paints and lubricants.
Lead tubes with internal linings are used for fluoride tooth-
paste.
Lead chamber process is used in the manufacture of sulphuric
acid.

109. • It has the lowest cost.
ADVANTAGES • Much lead is used in the chemical
industry because of its resistance
to corrosion
• Lead has low melting and hence
posses poor structural qualities.
DISADVANTAGES
• It has a high coefficient of
expansion.
• It is used for cold water pipes,
USES waste pipes and dilution tanks for
laboratories.

110. LEAD ALLOYS AND MODIFICATIONS:
Acid lead and copper leads are used in chemical industries.
Some metals are added to lead for altering properties.
SILVER AND COPPER:
Improve corrosion resistant.
Improve creep and fatigue resistant.

111. TIN,ARSENIC:
Hardens, steel melting point is low.
Lead lined steel structures are used for the construction
of pipes, valves, vessels designed for operations at high
temperature, fluctuating temperature or vacuum.

112. NON-METAL INORGANIC
GLASS
GLASSED STEEL

113. GLASS:
• Glass is composed principally of sand, soda
ash, lime stone and cullet.
COMPOSITION • Sand is almost pure sillica,soda ash is sodium
carbonate, lime stone is calcium carbonate.
• Cullet is broken glass that is mixed with the batch
and acts as fusion agent for the entire mixer
•It is chemically inert.
•It is non corrosive.
ADVANTAGES •It imparts no odor or taste to that of the
product.
•It is impermeable.

114. • They are brittle and break easily.
• They may crack when subject to sudden
changes of temperatures,
DISADVANTAGES • They are heavier in comparison to plastic
containers.
• Transparent glasses gives passage to UV-light
which may damage the photosensitive drugs
inside the container.
• Mostly used in pharmaceutical industries
USES
as a containers.

115. GLASS STEEL:
Glassed steel is cooled to a rigid condition without
crystallizing.
It requires special consideration in its design and use.
Glassed steel combines the corrosion resistance of glass
with the working strength of steel.

116. • Excellent resistant to all acids.
• It can be attacked by hot alkaline
ADVANTAGES solution.
• Acid resistant glass with improved alkali
resistance.
• Used for strong acids, alkali and saline
solution.
USES • For small scale manufacture and pilot
plant work glassed steel vessels are
used.

117. NON-METAL ORGANIC
RUBBER
PLASTIC

118. RUBBER:
Used as such lining material for the construction of plants.
Type of rubber:
I. Natural rubber.
II. Soft-rubber.
III. Hard-rubber.
IV. Synthetic rubber.

119. • Rubber is naturally occurring polymer obtained as
latex from rubber tress.
• It is common example of an elastomer.
• Elastomer is a substance that can be stretched
NATURAL readily regains its original from.
RUBBER
• The naturally occurring polymer is known as soft
rubber.
• It is a polymer of monomeric isoprene.
• It is resistant to dil. Mineral acids, dil. Alkalis and
salts.
SOFT RUBBER • Used lining materials for plants.
• Used in making tyres ,tubes and conveyor belt.

120. • Soft rubber with >25% sulphur is know as hard
rubber.
• Hard rubber is used for making gloves, bands,
tubes and stoppers.
HARD RUBBER
• Synthetic rubber is resistant to oxidation, solvent ,
oils and other chemicals.
• Synthetic rubber is thermoplastic.
SYNTHETIC
RUBBER

121. PLASTIC:
Plastics are synthetic polymers of high molecular weight.
Plastics as packaging have proved useful for a number of reasons,
including the ease with which they can be formed, their high quality and
the freedom to design.
Plastic containers are extremely resistant to breakage and offer safety
consumers

122. ADVANTAGES OF PLASTIC:
They are light in weight and can be handled easily.
They are transported easily.
They are unbreakable.
They available in various shapes and sizes.
They are resistant to inorganic chemicals.

123. DISADVANTAGES OF GLASS:
They are brittle and break easily.
They may crack when subject to sudden changes in
temperatures.
They are heavier in comparison to plastic containers

124. TYPES OF PLASTIC:
Thermoplastic type :-
On heating, they are soften to viscous fluid which
hardens again on cooling.
e.g. polyethylene ,PVC ,Polystyrene ,polypropylene
,Polyamide ,Polycarbonate.
Thermosetting type :-
When heated , they may become flexible but they do
not become liquid.
Phenol formaldehyde ,urea formaldehyde, melamine
formaldehyde

125. BASED ON UTILITY OF PLASTIC:
Rigid materials.
Flexible materials.
Metallic surfaces.
Plastic cements.
Special case plastic.

126. RIGID MATERIALS:
These are phenolic resins with resins various inert filler.
Used in fabrication of number of items.
Light in weight.
Used in gears, pipes ,fittings, ducts, valves, vessels.
Resistant to corrosion except oxidizing substance and strong
alkali.

127. FLEXIBLE MATERIALS:
These are thermo plastic materials.
These materials can be rigid or flexible depending upon the
amount of plasticizer added.
They are used in fabrication of tanks, pipes , funnel, buckets.

128. METALLIC SURFACE:
Plastics of polyethylene or polyvinyl chloride types are used
along with plasticizer for the coating of metallic surfaces.
These are used to protect the metal from corrosion.
These linings are applied on tanks, vessels ,stirrer and fans.

129. PLASTIC CEMENTS:
Used for spaces between acid resistant tiles and bricks.
SPECIAL CASE:
Plastics are used as guards for moving parts of machinery.
Nylon and PVC fibers woven into filters cloth and are used
for aseptic screening.

130. Conclusion :
Packaging is one of the most important part of
pharmaceutical industries .
Product produced is might be of vary good quality at the
time production but it is useless if is not able to reach as it is up
to end user.
Quality Maintenance is the major role played by packaging
material .Along with that it gives pharmaceutical elegance and
convenience to user to product .
Many times the Packaging is may become a ideal unique
identification for some of brand in market .Quality control of
such important part is also a vary valuable work.

131. REFERENCES
Packaging materials “ Leon Lachman and Herbert
A. Lieberman”.
Materials of plant pharmaceutical plant construction
“Copper and Gunn's” tutorial pharmacy.
Packaging materials R.M.MEHTA Pharmaceutics-I

132. Hearty thanks to
Prof .Dr. M.B.Venkatapathi Raju Sir,Principal,SRCP.
Prof : G.Sudhakar sir , Vice principal,SRCP.
Prof .Dr. R. Santosh Kumar sir , H.O.D,SRCP.
My Teachers and other faculty members and
non teaching staff,SRCP.
Finally special thanks to Srinivasa Rao College of
Pharmacy Management.

133. Thank
you