pulp
ing
Paper
Papermaking PROCESS an introduction
fo
to sep r recycling is
arate th d
e com issolved into
ponen
t fibres pulp
.
Today’s high quality papers require a highly technical and accurate
manufacturing process. This diagram details the paper making process
and illustrates the use of wood and paper for recycling.
De-in
kin g
Adhes
ive
Mech using a s and ink are
flotatio paper
Woodc
h
an ical P
ulpin
re
n proc moved
ess. FOR
RECYCLING
Pulps ips are groun g
are d
comm used to ma to separate Paper
newsp
odity p
rinting
ke high
v
the
olume fibres. In the
Co ating import for recycling
coatin an is
pulp a t material fo an
rint an p
d mag roducts suc coa g pro
azine p h as onto th ting color is cess,
nd pap r
er indu the
aper. e pap sprea
coatin er surface. d
pigme g colour con The
nts, bin ta
stry.
and ding a ins
ge
Coatin various addit nts,
g the p iv
times aper s es.
eve
printin often improv ral
g pro e its
grade perties. Hig
prin h-
coated ting paper is
up to 3
times.
Chem
ic al Pu
The wo
o lping
remov dchips are c
e lignin o
proces . Burnin oked to
s g
the wh by-products of the
o e
energy le pulping pro nables
self-su c
fficien ess to be
t.
head
bo x
The he
ad
of wate box squirts
r and fi a
thin ho bre thro mixture
ri
machin zontal slit ac ugh a wire
de-ba ro se ction
Finis
e
rk endles ’s width onto ss the The wa
and c ing
hing
s movin a te
g wire n wire se r is then rem
hippi Clean mesh. ction.
Here th oved on this
Bark w
hic
ng ing to spre
a e reels
used fo h cannot b The fib
re thin m d and conso fibres starts and s
r
is strip papermakin
e screen s are then w at. lid
“sheet This proces ate into a The pa
p heets
p g ed and as
dried. hed; formati s is ca a reel ers are then
logs an ed from the The pu on”. lled or cut
in wound
d for prin to in
Stripp used for en used d
lp is re
ady to ting an sheets, rea to
ed log ergy. d conv d
chippe s are ir
bleach ectly or it ca
be Calen erting. y
d
pieces into small ed into nb
white p e After c
d ering
and re aper. oa
covere
d. device ting, the pa
with tw pe
The co o or m r can be cale
m ore roll n
the pa pression of ers thro dered. A ca
per its th le
smooth e rollers an ugh which th nder is a
and glo d th ep
ssy pro e applicatio aper is run.
perties n
, like ir of heat give
oning
shirts.
Paper
The w
M
aking
o
W Wood diluted od pulp is
materiaood is a ren its we with 100 tim
l for th ewable ig Press
indust e pulp and raw liquid ht. The fibr es sectio
is e The pre n
sustain r y an pape throug then run s
web o s section sq
ably m d comes fro r h the fw ue
water et papers a ezes the
dryin
g
anage
d fores m machin
e.
conten n
t to 50 d lowers A serie
s
ts. %. heated of cast-iron
to cy
excess a tempera linders,
o tu
web o f 100°C, wh re in
f shee e re the
and dry ts p
ing tak ass through
es plac
e.
For more information visit
www.paperonline.org
24 25
20 years of CEPI 20 years of CEPI
