Laminated Steel Sheet (Hi-Pet)

Hi-Pet is a film laminated steel sheet that Toyo Kohan developed. One of its typical uses is for "TULC Cans"* which use this material to make cans. This eliminates the painting and cleaning steps when making cans, so that there is a large reduction in CO2 emissions and waste water, helping to achieve an "environment friendly" can production process. We have high expectations for this product for processed food cans and for 18-liter cans.

* "TULC Can" is an abbreviation of "Toyo Ultimate Can." This was developed by Toyo Seikan Co., Ltd.

What is a resin laminated steel sheet (polyester resin sheathed steel sheet)?
A "resin laminated steel sheet' is a steel sheet that has been laminated (thermal compression) with polyester resin which has been given the product name "Hi-Pet."

Toyo Kohan in Your Everyday Life
Beverage Cans

Feature

Features 1 Environment friendly

  • The painting process can be eliminated, so that CO2 emissions are reduced.

Features 2 Creates a superior barrier

  • Creates a superior barrier, so that corrosion is prevented and the contents are protected.

Features 3 Excellent processability

  • Very Excellent processability because lubrication is supplemented during processing.
Product name Film composition Features
Hi-Pet
  • Polyester Film
  • Steel sheet
  • The film surface can be printed.
  • The laminated original sheet is not limited to steel (TFS, tin plate). Aluminum can also be used.
  • Complies with the Food Sanitation Act.
Uses

Uses

From standard industry products to leading-edge products, this product is used in the lives of people around the world.

  • Beverage cans (TULC, TEC, aTULC)
  • Can tops
  • Metal caps
  • Processed food cans (DRD cans)
  • 18-liter cans
  • Candy cans
  • Spray cans
  • Stationery and office supplies
  • Electrical and electronic parts (liquid crystal display parts)
Production Process

"Hi-Pet" requires strictly controlled production processes in order to achieve a strong adhesion between the film and steel sheet. Toyo Kohan constantly achieves a steady quality by using the latest quality assurance instruments in a high level clean room environment.

Lamination process

Lamination process

DEC process

DEC process

Properties

"Hi-Pet" can be used to draw various types of cans, for the tops and bottoms of aerosol cans, to make caps, and for the bottoms and tops of 18-liter cans.
Polyester film is laminated on heated TFS or tinplate.
The laminated polyester film is made up of a biaxial orientation layer and a non-orientation layer.
One or both sides can be laminated.
Lamination with white polyester film is also possible.
Please consult with us when you plan to heat laminated steel sheets for painting or printing.

White Film

Comparison of properties Laminated steel sheet Hi-Pet Examples
Polypropylene laminated steel sheet Polyethylene laminated steel sheet
Melting point of laminating resin (heat resistance) 250 to 260℃ 150 to 170℃ 100 to 130℃
Chemical resistance Acids ○ ○ ○
Alkalines × ○ ○
Organic solutions ○ ○ ○
Reaction with contents (beverages, pain, etc.) None Adsorption Adsorption
Available Sizes

Size availability depends on the combination of specifications of film and substrates (thickness, width, temper etc.).
So please ask us about availability of each size.

Item Specifications
Substrate Type Tinplate,TFS, aluminum
Film Film thickness Clear film 12 to 40 µm
White film 13 to 30 µm
Laminate Laminate surface One side, both sides

Cross section (laminated on both side)

Cross section (laminated on one side)

Coil

Item/Substrate type Substrate thickness (mm) Product width (mm)
Tinplate 0.15 to 0.60 MAX:900
TFS 0.15 to 0.38 MAX:1,000
0.38 to 0.60 MAX:900

Sheet

Item/Substrate type Substrate thickness (mm) Product width (mm) Product cutting length (mm)
Tinplate 0.155 to 0.420 450 to 900 555 to 1,105
TFS 0.155 to 0.380 450 to 1,000
0.380 to 0.420 450 to 900
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