Types of Paperboards

By Awadhoot Shendye

PAPERBOARDS

• INTRODUCTION

– Cellulose derived substrate , with thickness greater

than 200 microns

• virgin and/or recycled fibre

• specially processed

– For better appeal and printability

– For imparting barrier properties

– For rigidity and protection

– For meeting Legal & Health demands

– Made from renewable source

– Primary application : Packaging

BOARD DIFFERENT TYPES W L C U N C O A T E D S B S F B B

7 0 to 1 0 0 %

re c yc le d f ib re

w ith C o a t in g

B o th W B a n d

G B

7 0 to 1 0 0 %

re c yc le d f ib re

w ith o u t c o a tin g

1 0 0 %

B le a c h e d

c h e m ic a l p u lp

O u te r la y e rs o f

C h e m ic a l p u lp

s a n d w ic h in g

M e c h . P u lp

M e d iu m d e n s ity ,

E c o n o m y,

A v a ila b ilt y

M e d iu m d e n s ity H ig h d e n s ity ,

p r in t a p p e a l,

h y g ie n e , ta in t

a n d o d o u r f re e

L o w d e n s ity ,

r ig id it y ,

h y g ie n e , P r in t

a p p e a l

P e rs o n a l c a re ,

T o ile tr ie s ,

F o o d ,G a rm e n ts ,

H e a lth c a re

S e t u p b o x e s ,

d iv id e rs , b o o k

b in d in g ,

m a tc h e s

C ig a re tte s ,

p h a rm a ,

C u ltu ra l

C ig a re tte ,

s o a p s , P h a rm a

BOARD DIFFERENT TYPES

C U K L IQ . P K G .

B O A R D S

C U P S T O C K C A S T

C O A T E D

C h e m ic a ly

b le a c h e d f ib re

w ith K ra f t B a c k

V irg in g ra d e

(S B S , F B B ,

C U K )

1 0 0 % B le a c h e d

c h e m ic a l p u lp w ith

P o ly c o a tin g s

M ir ro r l ik e

c o a te d

s u r fa c e

L o w d e n s ity ,

E c o n o m y,

c h e a p e r

a lte rn a tiv e to S B S

A s c e p tic ,

E d g e w ic k

a n d s tre tc h

H ig h d e n s ity ,

h y g ie n e , ta in t a n d

o d o u r f re e

H ig h g lo s s

P r in t a p p e a l,

s m o o th n e s s

B e v e ra g e c a r r ie r

B o a rd fo r b o tt le s

a n d c a n s

M ilk , ju ic e e tc C u p s fo r s o f t

d r in k s , m ilk

s h a k e s , H o t

b e v e ra g e s

P e r fu m e s ,

p re m iu m

b ra n d w in e s

a n d s p ir its ,

L a b e ls

White Lined Chip Board

• Recycled Fibre - based grades

– White Lined Chip Board

• Multi layer boards consisting of 60 to 100 % of

recycled fibre

• Top layer produced either with high grade white

preprint waste paper or bleached chemical pulp.

• The middle layer and the back layer are made from

waste paper

• The basis weight ranges from 200 to 600 GSM

White Lined Chip Board

• Surface Brightness is 80 to 85 % ISO

• Coating grammages range from 0 to 25gsm.

• Extremely good smoothness of less than 2 Microns

PPS possible

• Hunter Gloss more than 35 %

• Cost effective substrate for gravure and offset

printing process

• Used extensively in developing world, in developed

countries use confined to non food sectors

White Lined Chip Board

Uncoated recycled board

– made of 20% virgin fibre on top or 100 % waste paper

without any coating.

– Generally laminated with other boards/ papers and

basis weight of final boards will be over 1000 GSM

– Solid packaging boards for set up boxes and other

packaging applications

– As packing dividers in corrugated boxes, luggage

manufacturing, book binding etc.

Virgin fibre-based Board

Solid bleached board

– produced entirely of bleached chemical pulp.

– The number of solid homogeneous fibre layers varies

from two to four

– Both long and short fibre are used

– surface is double coated and back is either uncoated or

lightly coated.

– The surface brightness is 90 % ISO

– top surface roughness is less than 1.2 microns PPS

– Hunter Gloss of top surface more than 75 %

Virgin fibre-based Board

Solid bleached board

– Available in 200 to 600 GSM

– Suitable for all types of Printing Process

– Considered as premium grades for packaging and

graphical purposes

– Suitable for packing aroma and flavor sensitive

products

– In general SBS are superior when purity good

appearance and runnability of the packaging material

are required.

Virgin fibre-based Board

Folding box board (FBB)

– Folding box board consists of three layers

– The top layer is of bleached chemical pulp.

– The middle layer consist of mechanical pulps: stone

ground wood pulp, pressurised ground wood ,

thermomechanical pulp or chemi thermo mechanical

pulp. This layer gives stiffness and bulk.

– The back of FBB is either manilla or white in colour

Virgin fibre-based Board

Folding box board (FBB)

– The top is coated with two layer of coating and coat

weight is in the range of 22 - 25 GSM

– A good substitute for SBS in applications where

runnability and a virgin fibre base are required

– Visual properties slightly inferior to SBS

– Suitable for all printing process- infact the most

converter friendly board

– The basis weight ranges from 200 to 450

– Ideal for Food packaging, cigarettes cosmetics,

pharmaceuticals and graphical applications.

PAPER BOARDS - Different Types

Coated unbleached kraftboard (CUK)

– made from unbleached sulphate pulp (245 - 520 GSM)

with a coating of 22- 25 g/sq..m

– The top layer under the coating may consist of bleached

chemical pulp.

– Also some recycled fibre can be used to replace part of

the unbleached sulphate pulp

PAPER BOARDS - Different Types

Coated unbleached kraftboard (CUK)

– Has very strength properties

– Used as a lower cost alternative to SBS board

– Mainly used as a beverage carrier board for both glass

bottles and cans and also in folding cartons.

– Generally suitable for all printing process.

PAPER BOARDS - Different Types

Cast coated boards and papers

-The base board can be uncoated SBS, FBB or recycled

boards

- The roughness is less than 1 microns PPS and hunter

gloss is more than 90 %

- suitable for premium packaging of cosmetics, liquor

pharmaceuticals, greeting cards, labels and others

– generally available in 220 - 450 GSM

– cast coated papers in 85/90 gsm used extensively for

labels with higher grammage papers popular in greeting

cards

PAPER BOARDS - Different Types

Liquid packaging board

– Base board is either coated or uncoated SBS, CUK or

FBB with CTMP in middle layers

– These boards are laminated with aluminium foil and

special plastic barriers.

– Requires special properties like edge wick with lactic

acid and Hydrogen peroxide and stretch.

– Mainly used for packing milk, juice and other liquids

– generally available in the range of 170 - 340 GSM

PAPER BOARDS - Different Types

Cup stock board

– Base board is normally uncoated SBS

– These boards are laminated with PE for soft drinks and

hot beverages

– generally available in the range of 170 - 340 GSM