ptl introduction laminated tfs eng nov12

Laminated TFS

Nippon Steel & Sumitomo

Metal Corporation

Confidential

Confidential :2012.10.1:Laminared TFS

© 2012 NIPPON STEEL & SUMITOMO METAL CORPORATION All Rights Reserved.

Production of Laminated TFS Laminated TFS for TULC(canning process) has developed

by TOYO SEIKAN group , and Nippon Steel sealed the

license contract of this Laminated TFS in 1991.

1993 : No. 1 FLL came into operation.

1994 : Supply of materials for TULC started.

1997 : No. 2 FLL came on stream.

2001 : Supplies to users overseas started.

2

From the start of production of Laminated TFS

in 1994, NSSMC’s output totaled 1.6 million tons

by 2011.



Outline of Film Laminating Line

3

Maximum Speed

(m/min.)

Capacity

(tons/Year)

Start of

Operation

No.1FLL 200 120,000October 1993

(During a stop)

No.2FLL 200 120,000 October 1997

Specifications of Film Laminating Lines



4

Details of Film Laminating Equipment

Laminating Conditions

(ex. PET Film)

Temperature Conditions:

TL<<TM<TS

Film Laminator

Film

PET Polyethylene Terephthalate

PP Polypropylene



5

Cross-sectional Structure

*3 : Amorphous Layer

•Adhesionability

•Formability

*2 : Crystalline Layer

•Corrosion resistance

*1 : Base Metal: TFS Featuring Excellent

Coat Adherence

•High-purity Chromium Oxide Layer

PET Film Thickness(mm)

Inside Outside

Clear 20 12 , 20

White 20 13 , 20

Gold － 12

TFS*1 FilmFilm



6

Applications for Domestic MarketBeverage cans

Food cans



Examples of PLT Applications (Overseas)

Tuna Salad

(Body)

Tuna Sardine : 3piece Club Can Pet Food

(Body & EOE) (EOE & END) (Body, EOE) (Body)

Ready meal

(Body)

Juice Can Cap

General Can

7

Salmon Vegetable

(Body) (End)



Manufacturable Range of Laminated TFS

8

0.05

0.10

0.15

0.20

0.25

0.30

0.35

0.40

0.45

500 600 700 800 900 1000 1100 1200 1300 1400

Width (mm)

Meta

l th

ick

nes

s of

pro

du

ct

(mm

)

Manufacturable range

Range of regular manufacture

As these ranges vary depending on degree of temper, type of annealing and others,

we would appreciate being allowed to check and confirm with you detailed

conditions involved on a case-by-case basis.



Defect Information

9

Defect Information Sheet

( Attached to all coils )

Defective

surface

Position from the

outer turn of coil

Classification of Defects

*Our sales weight (selling weight) is the

weight after subtraction of weights of

defective portions (in cases where

contracts are based on calculated

weights).

Class. Defect name

Defect A Film joint

(Serious Defect) Coil joint

Base sheet hole

Film width shortage

Defect B Base sheet defect

(Slight Defect) Visual insp. defect

Base sheet pinhole

Film pinhole



Markings of Defective Portions Markings are made in two

types depending on the classification of defects.

10

Marking to Defect Area

Serious Defect Slight Defect

Ed

ge

of

Sh

eet

Ed

ge

of

Sh

eet

Position of marking

Defect

* Some of the defects cannot be located by naked-eye observation, but

since a marking means that there is some defect in the marked portion,

please make sure to reject the portion.

Positions of markings may

sometimes be 300 mm

maximum off the defects.



Label and Package Card

11

Label

In future, we plan to use codes that will show top- and bottom-side film

type.



12

In future, we plan to use codes that will show top- and bottom-side film

type.

Package Card



Films for Laminated materials

13



Film Types and Application Examples

Film types Color: Three colors (white, gold, and clear) are

available.

Thickness (mm): ( ): Consultation required

*Films that meet the requirements for food products (stipulated by the FDA and others) are used.

14

Type-A Type-B Type-C Type-D

White 13, (16), 20

Clear 12, 16,

20

16,

20, (28)

12 20

Gold 12



Specification of the Film Resin

Type-AGeneral PET resin is used.

Type-BPET-IA type resin is used to improve forming workability.

Type-CPBT resin is mixed into PET resin.*It reduces blushing that is liable to occur during heating (retort process) when Type-A or Type-B is used for the outside surface.

Type-DIt has a PET resin layer in the surface layer in which PE resin is dispersed.*It reduces unwanted adherence of the contents to the inside of the can when the contents are unskinned fish or some pet foods.

15



Basic Film Properties

Type Glass-transition temperature (C) *1

Melting point (C) *2

Tg Tm1 Tm2

A 74 245-258 –

B 74 226 –

C 56 218 245

D 74 229 253

16

*1 Point at which resin starts to soften

*2 Films consisting of two or more resins may have two or more melting points.

*3 The temperatures are all typical values.



Applications of Films (Example for Food Cans)

Application Printing Film type Remarks

Outside Inside

NOE Applicable/not applicable

C A, B, C Normal lid

EOE C B, C

DRD Not applicable C A, B

Not applicable C D With meat-release property

Applicable B (white) B Film with white outside also serves as an alternative to base coating.

Tab Not applicable A, C A, C Tab for EOE

17

Film thickness:Outside of can: Use 12mm (13mm for white) in general.Inside of can: Choose the thickness suitable for the application and the contents.



Type-B (White Film)

18



No inside surface coating required

→Leading to less coating capacity requirement

→Decrease the waste gas

Printable as on tinplate, TFS, or aluminum

Uniform appearance assured, free of uneven coating

19

Printing for PLT materials



Cleanliness Improvement

20

Original Coated Can Laminated Can

Laminated Can

Products appear

cleaner

LaminatedCoated



Type-C : Blush-free Film

21



Measures against Blushing

PET film’s recrystallization is

progressed by retort sterilization and

other such heat treating.

When this recrystallization of PET

film does not progress uniformly,

appearance imperfections called

“blushing” (see the figure on the right

hand) occur.

Non-uniform recrystallization is liable

to occur during heat-treating

involving steam, such as retort

sterilizing.

22

Fig. Appearance of “blushing.”



23

Improvement of “Blushing”“Blush-free Film” has been established by the application of a

film which recrystallizes at a fast rate.

NSSMC has developed this technology by joint study.

1

10

100

1000

10000

60 80 100 120 140 160 180 200 220

1/2

Cry

sta

lliz

ati

on

Tim

e (s

ec.)

Temperature (℃)

Type-A

Type-B

Type-C



Ref. Comparison in Anti-Blushing Property

In the boiling-water immersion test, color changes occur

on the interface between the gas phase and the liquid

phase in the other two companies’ materials, the NSSCM

material is virtually free of such a phenomenon.

24

NSSCM Company A Company B

Dip in Boiled

Water (10 min.)

Comparison of NSSCM’s and two other companies’ laminated

materials



Type-D : Film for Meat Release

25



26

Meat Release Specification

Wax is added to the film layer in the coating.

☆The wax-bearing layer is about 2μm thick.

TFS

PET layer

(Clear)

Wax-bearing PET layer

Ordinary Film

New Film

Retort Treating

Salmon in Can



Commercialized products

27



Paper Labeled Drawn Cans

Film

28

Fish Cans (Tuna, Sardine, etc.) Corn Can

Fish Can (Tuna, Sardine) Salmon Can Corn Can

Inside C20A C20D

(Meat release)

W20B

Outside G12C

(blush-free type)

G12C

(blush-free type)

C12C

(blush-free type)

1/4 CLUB CAN307x113 DRD

83mmx86mm DRD



Pre-Printed Drawn Cans

Film

29

Distortion-Printed Drawn Can

Bowl Can DRD Can Club Can

Inside W20B C20B W20B

Outside W13B W13B W13B



Ends for Cans

Sardine Fruits Corn

Inside G12C C12A or C12C W13B

Outside G12C C12C C12C

30

200f Ends for 6 oz.

Sardine Can

603f Ends

for Fruits Can

Film

307f Ends

for Corn Can



Easy Open Ends & Tabs

31

Club Can EndNormal-Type

Round Can Club Can Tab

Non-Printed Printed Non-Printed Printed

Inside C12C

or W13B

C12C G12C W13B C12A

Outside G12C

or C12C

G12C

or C12C

G12C W13B C12A

or G12C

Film



32

Conclusion PLT is possible use in a various usage and has good

performance.

PLT is the material that does not include the regulation fears substance. (ex. BPA, BADGE, BFDGE, NOGE )

If PTL is used the discharge quantity cut of such as CO2 gas is produced. (ex. TULC by TOYO SEIKAN is the object of an ECO-LEAF mark in Japan (ISO14025).

PLT is the material that has an excellent prospect.

NSSMC can support the technology to the use of PLT

by various experiences and evaluation equipment.

ptl introduction laminated tfs eng nov12

Documents

laminared tfs

base metal

defect namedefect

food body eoe eoe end

sales weight

pet filmtemperature

eoe bodyready mealbodyjuice

start of production