petrofer - yankee coating

8/10/2019 PETROFER - Yankee Coating

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ContentImage

PetroferPaper

CoatingProblems / PossibilitiesServiceComplete Protection at the YankeeImportant Parameters for the CrepingThe PETROFER-System

Cotac HCotac ModifierRelease AgentPETROFER-Technical Service

Softlayer

Cotac EPrägewalzölIsocut PAPIsogrind PAPMG-Cylinder

Cotac BonDEnclosure



Headquarters

Germany - Hildesheim



Hildesheim,

Germany

Kielce, Poland

Izmir, Turkey

Barcelona,

Spain

P.R.China

Shanghai

ShenzhenChangchun

Under license:

Hyogo, Japan

Fuji, Japan

PRODUCTION WORLDWIDE



SALES

Germany

China

Poland

UK

France

Spain

Italy

Netherlands

AustriaSwitzerland

Turkey

South Africa

Bulgaria

Ukraine

Finland Denmark

Portugal Slowakia

Sweden Slovenia

Czech Rep. Hungary

Canada Indonesia Taiwan

Iran Thailand

Malaysia Japan

WORLDWIDE



Sales in Europe

Diatom Vaerktöj A/S, DenmarkYTM Industrial Oy, FinlandPETROFER S.à.r.l., FrancePETROFER U.K. PLC, U.K.PETROFER ITALIA SRL., Italy

H.R. Fischer Ibérica 2000 S.L., SpainPETROFER Benelux B.V., NetherlandsPETROFER Austria Ges.m.b.H., AustriaE.KRAMER LDA, PortugalG.A. Lindberg, SwedenPETROFER Schweiz AG, SwitzerlandPETROFER Bulgaria

PETROFER UKRAINEPETROFER POLSKA, Poland NPK Chemie, SloveniaMERCANTA S.R.O., Czech. RepublicBASLER Trade GmbH, HungaryDUBEC & REINSCH S.R.O., SlovakiaPETROFER Endüstriyel Yaglar, Turkey



COMPANY PHILOSOPHY

Independent

World-wide

Strenght by partnership



business procedures

working- and procedure instructions

VDA 6.1 ISO 9001 ISO/TS 16949 QS 9001

Quality Certificates



ACTIVITIES

• Research & Development• Production• Cooperation• Finding New Partners• Transmission of Know-How

• Direct Export• Indirect Export



Research & Development61 Employees

Research Development Analysis



ME

T AL C UT T I N G

NE AT

C UT T I N G OI L S

FORGINGMETAL FORMINGHEAT TREATMENT INDUSTRIAL LUBRICANTS

PAPER CHEMICALSRUST PREVENTIVESDIECASTINGCLEANERS

M E T A L C U T T I N G

W A T E R - M I S C I

B L E

P R O D U C T S



In the tissue industry



ADDRESS:PETROFER CHEMIE

RÖMERRING 12-1631141 HILDESHEIMGERMANY

TEL: +49 (0) 5121/7627 375FAX: +49 (0) 5121/7627 66

www.petrofer.com [email protected]

http://www.petrofer.com/

http://www.petrofer.com/



P r o c e s C h

e m i c a l s

F o r t h

e P a p e

r I n d u s

t r y

P r o d u

c t Gr o

u p s



The application of our COATING

chemicals and our know-how enable

the papermaker to adjust quality

parameters and take possession of

runnability



Complete programme of coating chemicals

Economical effective spray system

Increase of productivity and runnability

Protection of cylinder and reduction of wear

Improvement of tissue softness

BgVV-recommendation

DIN EN ISO 9001/14001

Biodegradable products

Service

Papermaking technical expertise

C O T A

C



Uniform, homogeneous coating

Constant stretch Variation of strength

Long blade lifetime

Runnability

Increased heat transfer Super-Soft Tissue



Corrosion

Heavy dustformation

Black stripes

in the tissue

Uneven coating profile

Picking

Deposits at the Yankee edges



SYSTEM ADJUSTMENTPRODUCT RANGE

PRODUCT QUALITY

PRODUCT INNOVATION

CHEMICLAS

PRODUCTS SERVICE

CHEMICAL

MICROBIOLOGICALDIAGNOSIS

ANALYTIC OF WATER

ANALYTIC OF DEPOSITS

ANALYTICAL REPORTS

SPARE PARTS

INSTALLATION

EQUIPMENT

DOSING OPTIMIZATION

START UP

TECHNICAL

PETROFER PAPER CHEMICALS

CUSTOMER

RELIABLE SUPPLY TRAINING RAPID RESPONSE



COMPLETE PROTECTION

AT THE YANKEE

1. Spraying

2. Curing

3. Rewetting

4. Fixing

5. Creping

1

12

3

4

5

12

3

4

5



1. SPRAYINGIn the spray area, the COATING-chemicals are applied onto thecylinder.

The COTAC adhesive agents are based on polymer solutions.

Parameters for an effective application are:

spray angle, type and distance

type of spray nozzles

temperature of the spray water

surface roughness

spray pressure

surface energy of Yankee surface

possible residual coating



2. CURING

Water evaporates from the COTAC-polymer solution

Formation of a soft polymerfilm with a high water content

The polymer filmcreates wet tacking

The wet adhesion isnecessary for safe anduniform web pick up



3. REWETTING

The polymer film is rewetted in the nip press rollthrought the paper web

Increase of wet adhesion

By means of diffusion, fines and additives fromthe pulp reach the open, wet adhesive polymer

film

COATING FORMATION



4. FIXING• The dewatering of the coating is carried out by

means of dryingDrying

• Contact drying through the cylinder / strong influence

• Drying process by means of hood energy

• With increased drying

The coating gets harder

the adhesion increases

• A chemical reaction between coating molecules andcellulose molecules takes place

• During the rotation, the paper web is safely fixed

onto the cylinder



5. PROTECTIVE COATING

COTAC RELEASE AGENT

PROTECTION ADHESION LUBRICATION

COATING

OF BLADE AND

CYLINDERTO PAPER WEB OF BLADE AND

CYLINDER



Yankee

Cylinder

Coating

Doctor

Blade &

Holder

Handling

Running

Conditions

Good

Performance

Web

Conditions



Coating Control

•

Cotac < - > Release Agent• Modifier

• Stretch / Caliper / Strength

• Protection

Adhesion Contr ol• Fixing

• Creping Improved adhesion of the paper

onto the Yankee leads to softer

tissue Application

• Spray boom

• Leckner system

• Furnish

• Spray water (temp., hardness)

Yankee

Cylinder

Doctor

Blade &

Holder

Handling

Running

Conditions

Good

Performance

Web

ConditionsCoating



Chemical Inf luences On Coat ing

Water Quality

pH-value

Adhesive &

Release

Addition Point

TS Solids

Type of

Adhesive

Adhesive /

Release

RatioEmulsion

stability

Ca and Mg

Water

Hardness

Artificial

Hardness

MAP

Modifier

Biocides

Adhesive &

Release

Dosage

Type of

Release

Coating



Adhesion

CoatingProtection

Blade

Yankee

Creping

Cross linked

Fibre to fibre linkage

Surface-

Bulk-

Softness



SCANNING ELECTRON PHOTOS

OF TWO DIFFERENT TISSUES

Conventional production

Produced with PETROFER -

COATING-Chemicals



Blade geometry

Blade material

Blade hardness

Blade hardness Rockwell

Blade holder

Cleaning blade

Blade pressure

Blade wear

Cleaning blade

Oscillation

Yankee

Cylinder

Coating

Handling

Running

Conditions

Good

Performance

Web

Conditions

Doctor

Blade &

Holder



GEOMETRY OF BLADE

Yankee

Paper Web

v1

v2

Blade a

b

q

Doctor

Blade &

Holder



Control

Maintenance

Yankee

Cylinder

Coating

Doctor

Blade &

Holder

Running

Conditions

Good

Performance

Web

Conditions

Handling



Roughness

Coating

Crown

Coating

Doctor

Blade &

Holder

Handling

Running

Conditions

Good

Performance

Web

Conditions

Yankee

Cylinder



Chemical Inf luences On Coating

Drying Strategy

Hood/Cylinder Ratio

Yankee

Temperature

Profile

Yankee Crown

Hood

Yankee Steam Yankee Speed

Yankee Surface

Yankee

SurfaceTemperature

Yankee CondensateThickn ess / Removal

Yankee Ed ge

Temperature

Contro l

Yankee

Cylinder



Yankee

Cylinder

Coating

Doctor

Blade &

Holder

Handling

Good

Performance

Web

Conditions

Running

Conditions

Machine Speed

Energy Capacity Hood

Cylinder Pressure

Felt & Wire

- Condition / Type

Line Forces

Suction Press Roll



Moisture Content + Control Furnish

Influence Wet End + Press Section

Wet End Chemistry

Process Water (pH, water hardness)

Yankee

Cylinder

Coating

Doctor

Blade &

Holder

Handling

Running

Conditions

Good

Performance

Web

Conditions



Furnish Impact

Type

Fines Content Filler ContentRetention

Recycled Fibre BrokeRefining Level /

Energy

SWK

HWK

Sulf i te

Eucalyptus

Recycled Fibre

Broke

Fines Content

Dyes

Saveall Polymers

Bleach Residual

Wet Strength

Hemicellulos e Content

Conver t ing Contaminants

Tackle Design

Freeness

Fines

Fines

Fil ler

Ink

Contaminants

Size

Latex

Toner

Stickies

Web

Conditions



Wet End And Press Sect ion Impact

Press Section

Shower ing

Pressure Roll Design

Wet End Design

Wire

Felts

Headbox

Dewatering

Separation Efficiency

Breast RollCouch Roll

Design

Air Permeability

Wear

Drainage

Cleanliness

Permeability

Design/Weave

Wear

Compaction

Age

Moisture Profile

Cleanliness

CD Profile Control

Layering

Drag

Stock Consistency

Roll Cleaning

High Pressure

Wett ing

Chemical

% Open Area

PLI Loading

Hardness

Nip Impression

Single vs. dou ble

Design (vac/bl ind

dri l led/grooved)

Water Remo valCrowns

Web

Conditions



Wet End Chemistry Impact

Wet End pH

Swings & ControlWet Strength

Felt

Conditioners

Cleaners

Absorbency

Aidl

Optical

Brightness

ORP Bleach

Carryoverl

Anionic

Polymers

Cationic

Polymers

Mill Water

Closure

Wet End

StarchDeink.Chem.

Carryover

Debonder/

Softeners

Hemi-

cel lu lose

Wet End

Defoamers

Recycled

Fibre

Contaminants

Biocides

Retention

Dye Fixatives

Saveall/Krofta Aids

Charge

Promoters

Retention

Aids

CMC

CO 2

Acid

CausticSoda Ash

Bicarbonate

% Closure

Chem.

Cycle Up

Temperature

Cationic

Dry/Temporary

Wet Starch

H 2 O 2

Cl 2

ClO 2

Feed Poin t

Dosage

Type

Amount

Type

Water Based

Water Extended

Oil

Concentrates &

Surfactants

Wet End

Starch

Latex

St ick ies

Rosin

AKD

Solvents

Surfactants

Polymers

Caust ic / Acid

Web

Conditions

Impact Of Water Hardness on Adhesion



Impact Of Water Hardness on Adhesion

Test Procedure: Laboratory test: Peel

Dependent Parameters: Concentration, Water Hardness

Test substance: Cotac 33H - solution: 7%, 14%, Lab. fleece (ZS:AP – 1:1)

Peel-Value N

Concentration

1,87

0,63

0,19

7 % 14 %

Positively charged calcium ions neutralize thecarboxylate groups of the cellulose located at the paper web surface

In doing so, the formation of chemical and physical bondings,which are essential for the adhesion, is inhibited.With regard to the technical side, the heat transfer

is reduced due to the formation of a calcium carbonate layer.

0° dH

5° dH

Web

Conditions



THE PETROFER SYSTEM

COTAC H

COTAC P

RELEASE AGENT

SPRAY UNIT

Description and Experience



Product Group Cotac H

---------------------------------------------------

Cotac 13H Cotac 41H

Cotac 17H Cotac 43H

Cotac 25H Cotac 45H

Cotac 27H Cotac 47H

Cotac 31H Cotac 50H new


Cotac 35H new Cotac 3169H new




with new Products




Product Group Cotac H

---------------------------------------------------

Cotac 13H Cotac 41H

Cotac 17H Cotac 43H

Cotac 25H Cotac 45H

Cotac 27H Cotac 47H



Cotac 35H new Cotac 3169H new




with new Products



PRODUCT: COTAC 35H

Description: This product is an aqueous, reactive polymer

solution similar to Cotac 33H but Cotac 35 H is

chemically stabilized. This reduces the reactivity

and thus the adhesion. The advantage is the

increased storage stability.

Experience: The viscosity of the most Cotac base coatings is

decreased with increasing shelf life, same is theadhesion. These effects are insignificant within the

normal application period but at a 6 weeks transfer

to China or Chile they are more significant.

Customers: No customers so far

Outlook: Cotac 35H is especially suitable for overseas

transports due to its high storage stability.

PRODUCT: COTAC 50H



PRODUCT: COTAC 50H

Description: Aqueous solution of reactive polymers

and additives

Experience: In the lab, the product shows an excellent

dry adhesion at moderate wet tack.

Despite of the high dry adhesion, the film

is very soft

Customers: No customers so far

Outlook: The product can be applied ascounterproduct to the PAL adhesion

agents. The performance is similar but the

chemical basis is completely different

PRODUCT: COTAC 3149H



PRODUCT: COTAC 3149H

Description: Aqueous, highly concentrated polymer

solution based on polyaminoamid resins.

The product corresponds to the XXXVI.recommendation of BfR

Experience: Excellent coating agent. The coating is

softer and the adhesion slightly higher

compared to Cotac 33 H. Atinhomogeneous coating, it is possible to

do without a modifier.

Customers: Delicarta, Lucchesse, P&G Neuss,

Kartogroup France, Renova, Omega

Outlook: The product is less expensive compared

to the other base coatings and shows an

excellent cost-performance ratio.



PRODUCT: COTAC 3169H, COTAC 3207H, COTAC 3225H

Description: These products are the cost effective

pendants to the classical base coatings

Cotac 33H, Cotac 27H and Cotac 25H. The

products have been well received at our

customers and now have a fixed customer

base.

Experience: In general, the adhesion is slightly

reduced compared to our classics and the

coating is softer.

Cust. 3169H Kartogroup, KC Niederbipp, Cartasetta,

M.T. Mänttä (Finland), Shanghai, SHP,

Fripa, Werrapapier, Omega,

Cust. 3207H: Renova (Portugal)

Cust. 3225H: Kartogroup Germany



Base coating and Adhesion

C O T A C H

- S e r i e

• COTAC 13 H

• COTAC 17 H

• COTAC 25 H

• COTAC 27 H

• COTAC 31 H

•COTAC 33 H

• COTAC 37 H

• COTAC 39 H

• COTAC 2001 H

COTAC 27H



COTAC 27H

C O T A C H

- S e r i e

Based on a mixture of polymers and protective

additives

Formation of a cross linked and voluminous coating

Strong activation of fines and additives from the pulp

Improved heat transfer

Especially suitable for waste paper

XXXVI. recommendation of the BgVV; FDA, 21

CFR Ch.I

COTAC 39 H



COTAC 39 H

C O T A C H

- S e r i e

Based on a mixture of polymers and protective

additives

Formation of a cross linked and voluminous coating

Strong activation of fines and additives from the pulp

Improved heat transfer

Especially suitable for waste paper

XXXVI. recommendation of the BgVV; FDA, 21CFR Ch.I



COTAC 2001 H

C O T A C H

- S e r i e

Thermoplastic coating agent

Low adhesion to the paper web

High elasticity of films

Suitable for temperatures in use of about 160°C



COTAC MODIFIER

•

COTAC 105 C• COTAC 203 P

• COTAC 115 C

• COTAC 207 P

•

COTAC 225 C• COTAC 237 C

• COTAC 444 P

• COTAC 460 P



Cotac H:



Cotac H:

FUTURE DEVELOPMENTS

A new product is currently not developed. With our existing

spectrum of base coating products we have a comprehensive

program which completely fulfills all requirements for an

optimum cylinder coating.

Nevertheless we are constantly screening new classes of

substances. As an example we tested the application of

renewable alginates.

Apart from the technical performance, other factors such as

disposability of the raw materials, prices, approvals of

international formalities (e.g. FDA) play an important role.




Product Group Cotac C and Cotac P

---------------------------------------

Cotac 105C

Cotac 115C

Cotac 125C

Cotac 135C

Cotac 203P

Cotac 207P

Cotac 237P

Cotac 257P

Cotac 500P

Cotac 600P new

Cotac 650P new

Cotac 444P

Cotac 450P

Cotac 460P

p p

with new Products



PRODUCT: COTAC 600P

Description: Coating modifier based on a highly cationic non

reactive polymer. Advantage: Increased wet

adhesion at the pick up of the paper web from the

suction press roll.

Experience: The product was tested many times and is now

constantly applied at several customers. In

combination with Cotac 3169H or Cotac 33H an

extraordinary tissue softness is achieved.

Customer: Delicarta THP SHP Ghori Poland Renova

Fripa Wepa Kartogroup Germany

Outlook: Perfect product performance. Unfortunately the

dosage quantities are relatively low between

10 and 30 ml/min at a machine of 1500 m/min.

Product: COTAC 650P



Description: Coating Modifier

Advantage: - Increase of adhesion between paper web

and Yankee

- Increased wet tack thus possible

application also at wet crepe

- Improved cylinder protection by the

formation of a thick coating

Experience: Werra Papier Kartogroup France

Customer: So far no customer

Outlook: We need to carry out further tests and gain

experience with this product

Cotac C and Cotac P:




News regarding old products

COTAC 257P:Description: Base coating modifier based on PVAl and

additives for the formation of a voluminous, soft and

very uniform coating, especially at variations of the

moisture profilRemarks: The product has found its first customer at the Wepa in

Müschede. The modifier equalizes the formerly streaky

base coating so that a uniform coating is formed at the

cylinder.

Cotac 500P:Description: Base coating modifier based on

polyvinylpyrrolidon. Advantage:

- Increase of wet adhesion of base coating

- uniform coating

Remarks: The product is ready to be tested




FUTURE DEVELOPMENTS

Cotac 145C:Description: Aqueous solution of a polyphosphonate

Advantages: - Increased service life of blades

- Less grinding intervals at the Yankee

Cotac 300P:Description: Anionic modifier based on an aqueous polyacryl

acid solution

Advantages: - Softening the base coating

- Coating formation

- Reduced adhesion

D i ti d E i ith



Product Group Release Agents

-----------------------------------------

Release Agent 38

Release Agent 42

Release Agent 44 DC new

Release Agent 54

Release Agent 544

Release Agent 56

Release Agent 564

Release Agent 60

Release Agent 80 new

Description and Experience with new

Products



PRODUCT: RELEASE AGENT 44 DC

Description: Synthetic Release Agent easy biodegradable

Advantage: - strong release effect

- reduced dust formation

Experience: Trials showed a slight increase in softness of the

produced tissue

Customers: Metsä Tissue Stotzheim KC Reisholz Renova

Outlook: The product can be applied if a strong releasing

effect is requested.



PRODUCT: RELEASE AGENT 80

DESCRIPTION: The product is a stable aqueous solution based on a

combination of anti-abrasive wear and paper repellent

agents. The product does not contain any preservatives.

Advantages: The product does not contain mineral oils thus the raw

materials costs are quite low. Furthermore the CSB is

low compared to conventional Release Agents.

Experience:

So far not tested. Trials are planned at Tela-Kimberly

Werra-Papier Van Houtum Hogly Kimberly

Outlook: If the good releasing properties also stand the practical

test this product would provide an opportunity to get rid

of the constantly increasing prices for mineral oils. This

would considerably increase our benefits in the product

range of Release Agents.



COTAC 115CAf ter Grinding And Metal l isation

The application of COTAC 115C



The application of COTAC 115C

• Longer intervals between grinds

• Compensation of surface defects

gives a long term cylinder protection

COTAC 115C is composed of passivating

additives based on phosphates which form both

protective and corrosion inhibiting properties

increases the blade lifetime

C O T A C C

- S e r i e

makes the base coating softer and

voluminous

modifies the adhesive properties

Recommendation for the phosphating after cylinder coating and –



p p g y ggrinding (Yankee)

Motivation:

1. After the grinding of the cylinder, the cylinder surface is not completelycured. At insufficient cylinder protection, there will be an inhomogeneouspost-curing over the complete cylinder width when restarting themachine due to the temperature exposition at the cylinder surfacecaused by the blade.

2. In the initial phase, the cylinder surface has not yet reached it’s finalhardness and is thus especially susceptible to mechanical abrasion. Atalloyed surfaces, complete particles can be erased at worst.

3. In the beginning, the thickness of the coated cylinder surface has notreached it’s maximum value. The lattice energy of the surface atoms hasnot yet reached it’s lowest enthalphy value. The surface valences are not

totally saturated. Thus the atoms are susceptible to chemical corrosioncaused by water, by the electrolytes of the paper web and of the spraywater as well as by atmospheric oxygen.

Advantages:



Advantages:

1. COTAC 115C applies a soft coat onto the new cylinder

surface.COTAC 115 C chemically bonds to the free iron ions orunsaturated valences at the coating surface. Thuschemical corrosion is reduced.

2. Due to the formation of a phosphate layer, the free heatenergy from the blade is spread evenly over the cylinderwidth.

3. The calcium content charged from hard spray water ischemically bonded to calcium phosphate. Thus there is noformation of calcium carbonate, an abrasive agent thatmay damage the still relatively soft cylinder layer.

Recommended procedure when restarting the machine: 1. Cotac 115 C is applied 10 minutes before placing the blade with the enclosed



calculation of the dosage quantities.2. The common application of the coating chemicals Cotac H and Release Agent is

done 5 minutes before placing the blade.3. In general, Cotac 115 C is applied at least for one week. Furthermore we consider

to apply Cotac 115 C continuously further on because apart from the protectivecharacteristics described, positive effects for the coating can be achieved as well. As already mentioned, calcium ions are bond to phosphates:- Calcium ions do form lime at a certain input of carbonates; lime in turn

has a reduced heat transfer. It is thus possible to take better advantage

from the drying capacity of the cylinder and the coating has a higher adhesion.- Furthermore the occupation of the carboxylate groups of the cellulose from thepaper web is inhibited. The free access of the carboxylate groups by thefunctional groups of the polymers from the adhesive agents Cotac H is essentialfor the formation of a chemical bonding and thus for the adhesion.

4. The dosage of our coating chemicals during the application period of Cotac 115 Cand after the application of Cotac 115 C has to be adjusted, if necessary. Ingeneral, there is too much adhesion which can be compensated by increasing thedosage of Release Agent.

The necessary dosage quantity of Cotac 115 C for sufficient protection is



calculated as follows:B * v

D = ----------- k

with: Dosage quantity Cotac 115 C : D [l/h]Spray width cylinder: B [m]Cylinder speed: v [m/min]Constant: k [m²/l] : = 4277 [m²/l]

Calculation example:

Spray width: 3.5 mCylinder speed: 1500 m/min

The calculated dosage quantity for Cotac 115 C is as follows:

3.5 [m] * 1500 [m/min]D = ------------------------ = 1.23 [l/h]

4277 [m²/l]



CYLINDER WEAR

COTAC 460P



COTAC 460P

COTAC 460P is based on anticorrosive components which form a protective, liquid fi lm at the cylinder edge, and onemulsifiers which have a cleaning effect .

Yankee-Edge Treatment

Advantages when applying COTAC 460P:

Prevention of burning on fibre material

Protection against corrosion

Reduced grinding frequency

Minimisation of breaks C O T A C P - S e r i e

COTAC 460 P – EDGE SPRAYING



WATER SPRAYBOOM

PAPER WEB

2 – 3 bar

0,5 –

2 l/h

Trim

Exact posi t ion o f the spray nozzles

Cotac 460 P

Trim

Type o f no zzle: 11001

Inl ine Dosage



Simple and Ef fective Control

Our RELEASE AGENTS are applied to control the cylinder coating the adhesion to the paper web

Thus it is possible to react on different systemparameters, e.g. different furnish

R E L E A S E A G

E N T - S e

r i e

RELEASE-EFFECT



RELEASE-EFFECT

R E L E A S E A G

E N T - S e

r i e

+

+

+

_

_

_

_

_

_

Cyl inder Coating Paper Web

Adhes ion

Release

e



R E L E A S E A G

E N T - S

e r i e

• RELEASE AGENT 38





• RELEASE AGENT 544• RELEASE AGENT 564

RELEASE AGENT 42e



RELEASE AGENT 42

Runnability

Control of Adhesion

Lubrication of Blade

Renewable raw materials

Application Advantages

=

=

=

=

Control of Stretch

Increased blade life-time

Sustainable

Control of Crepe

Recommendation XXXVI BgVV, FDA (21.CFR, Ch.I)

Easy biodegradable

R E L E A S E A G

E N T - S

e r i e

G Y



PETROFER-SPRAY SYSTEMS

To optimise the performance ofour coating chemicals we have

developed a specialised spraysystem.

The combination guaranteesto fully profit from thetechnology of our COATINGchemicals

P

E T R O F E R T E

C H N O

L O G

ADVANTAGES OF THEG

Y



V N G S O

PETROFER -SPRAY SYSTEM

• Transportable• Easy to set-up

• Cost effective

• Homogeneous application• User friendly

• Safe and reliable

P

E T R O F E R T E

C H N O

L O G

G Y



Points For Discus sion

Coating

Profile

Turnover

Time

Boom

Oscillation

Reaction

Time

SprayOverlap

Mixed

Efficiency

Water

Quality

Spray

Pressure

EmulsionTemperature

Boom

Diameter

Recirculation

Edge ControlOf Coating

Nozzle Size

& Design

Application

Point

Distance to

Nip

StaggeredNozzles

Emulsion

Stability

P

E T R O F E R T E

C H N O

L O G

Residence time of coating chemicals in different spray systems

G Y



Points for Discussio n:

Emulsification Homogenisation Pre-reaction

Dosage control Slime formation

Coating Quantity Inline-Dosage

Petrofer-Spray System

Time

P

E T R O F E R T E

C H N O

L O G

COATING QUESTIONNAIRE



Customer ____________________ Address _______________________________ Date ________

1. Problems at the tissue production _________________________________________________________________________

_______________________________________________________________________________________________________

2. Application target ______________________________________________________________________________________3. Yankee-machine Type ___________ Speed __________

Cylinder temperature ___________ Cylinder pressure __________

Hood temperature ___________ Creping factor __________

Productivity ___________ Suction pressure __________

Metal-Coating ___________ Roughness __________

4. Blade Type ___________ Blade-life __________

Angle ___________

5. Coating Applied chemicals / Consumption __________ __________ _________ __________Dust/ Instable sheet threading/ Moisture profile/ Breaks __________________________________

6. Edge treatment Applied chemicals / Consumption __________ _________

7. Spray equipment Type ___________ Spray nozzle ___________

8. Spray water Temperature ___________ Spray pressure ___________

Water hardness ___________ Conductivity ___________

Bacteria ___________ Yeast / Fungi ___________

9. Furnish Pulp / Waste paper ___________________________________________________________

Refining degree ___________ Bleaching ___________pH ___________

10. Wet end chemicals/ Defoamer ___________ Softener ___________

Consumption: Wet strength agent ___________ Phosphate ___________

11. Wire/ Felt Type ___________ Condition ____________

12. Tissue after creping Moisture ___________ Stretch ___________

Basis weight ___________ Thickness ___________

Strength ___________



CONSUMPTION OF COATING ADDITIVES

Speed v = 1000 m/min

Basis weight/ Paper m = 16 g/m²

Paper-width W = 5 m

Dosage COTAC 27 H = 3 kg/h

Area/h = W x v x 60 = 300 000 m²/h

Dosage COTAC 27 H

COTAC thickness of layer = -------------------------------------- = 0.01 µm

(theoretical value without covered areaaction of blade)

As comparison: aluminium foil 10 µm

pine fibre 25-69 µm

Calculation of layer-thickness

Possible calculation



Softener for the surface

Softlayer X

Softener for the bulk

Softlayer XX



Product Description

S O F

T L A Y E

R

X

- S e r i e

High efficient softener for the paper surface

Water-basedLow viscous

Conductive

With special additives e.g.vitamin EXXXVI. Recommendation of BgVV



e.g. rotor dumper



Parameters of in f luence:

• Visco sity

• Drop let size

• Spray nebu l izat ion

• Conduct iv i ty

• Control o f appl icat ion



Product Description

S O

F T L A Y E R

X

X - S e r i e

High efficient softener for the tissue surface

Easy dosageEmulsifiable

Non-ionogenic

XXXVI. recommendation of BgVV



Parameters of in f luence:

pH

Hold t ime and stock temperature

Water hardness

Conduct iv i ty

Total A lkal ini ty

Free ch lor ine

Interact ion w ith dry strength

Interact ion w ith Yankee coating chemicals

APPLICATIONSOFTLAYER 44



SOFTLAYER 44

SOFTLAYER 44

DISTANCE: 20-25 cm

NOZZLE ANGLE: 110°

INLINE DOSAGE

WATER

-PRESSURE: 1 bar/ m SPRAYBOOM-QUALITY

-APPEARANCE: CLEAR, COLOURLESS-pH: 6-8-WATERHARDNESS: < 20°dH-CONDUCTIVITY/20°C; < 500 µS

SPRAYBOOM



Tail tie glue for toilet paper

COTAC 69 E

High wet adhesion

Low dry adhesion

Water soluble



At the tissue production, the plies are embossedin order to achieve a stable structure. During theembossing process, the tissue passes through a

press nip with elevations and grooves, which are polluted from the dusty paper.

Prägewalzöl 10 D

Prevents the pollution of rolls

Increases the service life of embossing rolls Neutralises odour by means of deodorants

Corresponds to the XXXVI. Recommendation

of BgVV



Slitting Agent for tissue converting



Grinding Agent for blades



TREATMENT OF



MG-CYLINDER

Our Release Agents are

applied to keep MG-

cylinders clean.

COTAC 444 P is used

to form a liquid,

protective film on the

cylinder.



Additive for increasing

the internal bond strenght

of cardboard



Maschine-speed: 144 m/ min

Maschine-width: 3 m

Basis weight: 150 g/ m²

single-layer

Line forces: 70 kNVacuum SPR: -0,6 bar

Quantities: 2-4 l/ min Cotac Bond at

a waterflow of 300 l/min

Field-test-result



1,5

1,75

2

2,25

2,5

2,75

3

0 1 2 3 4 5

burst [bar]

dosage [l/t]



0

1,5 24

2,5

3

3,5

4

4,5

5

0 1 2 3 4 5

tensile CD [km]

dosage [l/t]



0 1,52 4

5

7

9

11

13

15

0 1 2 3 4 5

tensile MD [km]

dosage [l/t]



5

7

9

11

13

15

17

19

0 1 2 3 4 5

RCT [kNm]

dosage [l/t]



57

9

11

13

15

17

19

0 1 2 3 4 5

CMT [N]

dosage [l/t]



Maschine speed: 650 m/ minBasis weight: 140 g/ m²

multi-layer

Quantities: 0-80 l/h Cotac Bond at awaterflow of 2100 l/h

Field-test results



100

125

150

175

200

0 20 40 60 80 100

Internal bond strength [N]

Dosage [l/h]



WATER SPRAYBOOM

CARDBOARD LAYER



- Maschine type:

- single or multiple Fourdrinier

- Furnish:

- chemical pulp

- wood pulp

- waste paper (DIP quality)

- Paper dry-content:

- minimum 12%

Application



Presented by Germany

Thomas Brandenburger



Enclosure



CONDENSATE HEATER



DESIGN OF INTERNAL GROOVES



Example: Grammage: 18 g/m²

Machine width: 3,5 m

Yankee speed: 1500 m/min

Pope reeler speed: 1200 m/min 1230 m/min

Yankee based % crepe 20 %18 %

Production 1200 m/min x 3,5 m x 18 g/m² x 60 min 1230 m/min x 3,5 m x 18 g/m² x 60 min

= 4,536 t/h = 4,649 t/h

: = 0,113 t/h

= 2,712 t/d

= 82,716 t/m

= 992,596 t/a



Sheet Softness Stretch

Crepe Profile

Basis Weight

ProfileTensile

Sheet

Absorbency

Dry Strength

Moisture

Content

of Paper

Crepe

Wet Strength

Bulk



Method 2: Pope reeler basedMethod 1: Yankee based

Yankee speed –

pope reeler speed x 100

Yankee speed Yankee speed

– pope reeler speed x 100

pope reeler speed

Example: Example:

1500 m/min - 1200 m/min x 1001500m/min

1500 m/min - 1200 m/min x 1001200m/min

= 20 %crepe = 25% crepe

Geschw. Zylinder – 1500 m/min Geschw. Umroller – 1200 m/min

Moisture Content And Moisture Control



Press Section

Headbox

Profile

Control

Couch Design

Fourdrinier

Dewatering

Felt Cleaning

Practices

% Moisture

at Pressure

Roll Nip

% Moisture

at Crepe BladeI.R. Drying

Pressure Roll

Design

Breast Roll

DesignSteam Shower

Web

Conditions

Notes For Discussion



Spray Equipment

- Insufficient maintenance

- Typical problems Coating

- How to recognise coating problems

- Coating can not be built, blow-off of paper web

- The correct product combination is necessary

- Uneven coating profile

- High dust formation

Problems, problem analysis

- Random breaks / breaks at the edges

- Porosity and pin-holes in the sheet- Black stripes

- Problems of ply adhesionin the converting process

Blade

- High blade wear at high application of chemicals

- Increase of coating softness

Funktionale Chemikalien(Qualitätsrelevante Zusatzstoffe)

Prozesschemikalien(Verfahrenstechnische Zusatzstoffe)



Streichfarben-Binder

Leimungsmittel

Verfestiger

Bleichchemikalien

Farbstoffe, optische Aufheller

1%

1%1%

5%

Biocide

Dispergier-

ReinigungsmittelSchaumverhüter,Entlüfter

Retentions-,Fixier- und

Flockungsmittel

50%

25%

8%

6%

3%

8%

An tei l der Chem ischen Add it ivgru ppen am weltweiten Gesam teinsatz der

Papierrohsto ffe in 1999 2

Zellstoff



Zellstoff

Holzstoff

Altpapier

PigmenteFüllstoffe

Synthet. Additive

Al-Verb.

Stärke

1,0%

0,5%

1,5%

Chemische

Additive43%

11%

35%

11%

3%

An tei l der Chemisch en Addit ive am weltweiten Verbrauch der

Papierrohsto ffe in 1999 1



Produkt ion v on Papier- und Pappewaren nach Sortenantei l

in Deuts ch land 1997 in % (insg esamt 7955 Kt)

46,9

5,4

16,0

18,2

Wellpap ier, Wellpap pe

und

Wellpappeerzeugnisse

Sonst ige

Papier- und

Pappewaren

Tapeten

Haushalts- und

Hygieneart ikel

Hartpapierwaren

Etiketten

Verpackungen

aus Vollpappe

Papi ersäcke

Briefum sch läge und

Papierausstattungen

3,3

2,2

3,82,3

2,2



Sortenspezifischer Gebrauch vo n Papier und Pappe

f / ( )

102,6 k g/c.a

11,4 %

13,7 %

Druck- und

Pressepapier

Techn ik- und

Spezialpapiere

Verpackungspapiere

und Pappe

13,7 %

77,7 %

Hygienepapier

Zei tungsdruckpapiere

petrofer - yankee coating

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